4.0.4

Added support for different default skins depending on the slot index in the layout feature

CONTRIBUTING.md

@@ -6,5 +6,4 @@ is in quality of the report (typically providing correct steps to reproduce that
 * Test **experimental builds**, which can be found in [GitHub Actions](https://github.com/NEZNAMY/TAB/actions) for problems of any kind including bugs. 
 This way you will help make the actual releases more stable / help get stable releases sooner.
 * Help improve the wiki by opening a [Wiki change issue](https://github.com/NEZNAMY/TAB/issues/new?assignees=&labels=Wiki&template=wiki_change.yml), 
-where you can improve existing descriptions, add information you found missing, fix typos / grammar mistakes or add more examples of usage of functions.
-* [Buy a copy](https://builtbybit.com/resources/14009/) of the plugin or [send a donation](https://paypal.me/neznamy1) to keep the plugin active.
+where you can improve existing descriptions, add information you found missing, fix typos / grammar mistakes or add more examples.

README.md

@@ -1,70 +1,23 @@
 # About
 TAB aims to be a superior all-in-one minecraft plugin for displaying information that outperforms all 
-similar plugins in terms of features, performance, compatibility and support.  
+similar plugins in terms of features, performance and compatibility.  
 More information can be found at [Why TAB?](https://github.com/NEZNAMY/TAB/wiki/Why-TAB%3F) wiki page.
 
-# Distribution
-As of TAB 3.0.0, released with MC 1.18 (November 30th, 2021), there is no free / premium
-version anymore. Only one version of the plugin exists now, which contains all implemented features
-and is available to everyone for free. However, customer support is only provided to 
-customers who have purchased the plugin (see [Customer support](#customer-support)).  
-
 # Compiling
 Compilation requires JDK 17 and up.  
 To compile the plugin, run `./gradlew build` from the terminal.  
 Once the plugin compiles, grab the jar from `/jar/build/libs/` folder.  
 The universal jar contains all modules for all supported platforms.
 
-# Customer support
-Unlike with other projects where requirements and level of support provided are unclear,
-we provide a clear answer to what kind of service you will or will not receive. Some projects don't
-even clearly state if they are free or paid. While they are listed as paid on spigot, they have
-a free download link in description, which can be confusing.  
-Support is also quite often "we have a discord server, but don't ping devs for support", suggesting
-there is no official support, just the community.
-
-In TAB, everything is clearly defined. **Downloads are free, but services are paid.**  
-The plugin is free to download for everyone. The only exception might be occasional update delays
-for free users once a year.  
-Customer support, however, is only provided to customers who have formally purchased a copy 
-of the plugin on any of the websites the plugin is being sold on:  
-* [BuiltByBit](https://builtbybit.com/resources/14009/)
-* [Polymart](https://polymart.org/resource/484)
-  
-After purchasing, you can request assistance via either private messages on the website where you
-have purchased it, or using [TAB's Discord server](https://discord.gg/EaSvdk6) (which is highly 
-preferred, since the communication will be much faster thanks to notifications and more).  
-* We use a ticket system, which allows us to effectively track any amount of unresolved problems.
-No more questions getting lost in the sea of messages from other people asking. Tickets are only closed
-after user confirmed all of their questions were answered and then receive a transcript of the ticket
-from the bot after ticket is closed into private messages (unless user is blocking them).
-* We do not rely on the community helping, which often makes things even worse. We know people have
-better things to do than helping random people with a random plugin, especially when most people only
-have a very basic knowledge of the plugin, not being able to answer more complicated problems.
-* We have notifications enabled and reply as soon as possible. We do not have the server muted unlike
-most mods on most servers who only check it when they are really bored, give a wiki link and 
-disappear again.
-* As the developer, I do not rely on helpers providing support instead of me. They are handy as
-I am obviously not available 24/7, but I do not intentionally leave anything to them. I reply
-whenever I am available without any intentional delays.
-
-# Other links
-Download the plugin for free: 
-* [GitHub releases](https://github.com/NEZNAMY/TAB/releases)
-* [BuiltByBit](https://builtbybit.com/resources/20631/)
-* [Modrinth](https://modrinth.com/plugin/tab-was-taken)
-  
-[Wiki](https://github.com/NEZNAMY/TAB/wiki)
+# Documentation
+You can find everything about the plugin on the [Wiki](https://github.com/NEZNAMY/TAB/wiki). This includes a detailed description
+of all features, as well as information regarding compatibility or limitations of each feature.  
 
 # Issues
-The [Issues](https://github.com/NEZNAMY/TAB/issues) section is **only** available for cases included in templates.
-In other words, they **are not available for**:  
-* **Support** - support is provided on discord for buyers, where roles are given to verified users
-allowing us to know who bought it and who didn't. It also serves as a much faster way of communication.
-* **Feature requests** - closed indefinitely.
-  
-**If you're a customer, please use discord for reporting bugs, especially if you aren't good at making bug reports. 
-You will be provided with a much faster and higher quality service.**
+The [Issues](https://github.com/NEZNAMY/TAB/issues) section is an issue tracker for all the kind of problems covered in issue templates.
+Please refrain from attempting to use it to receive help with your server, such issues will be closed immediately.  
+When opening an issue, provide as much information as possible. The difference between a bug getting fixed in 1 week vs 1 hour
+is in quality of the report. Bug reports where steps to reproduce are "idk" have no value and will not help to get the bug fixed at all.  
 
 # Contributing
 See [CONTRIBUTING.md](https://github.com/NEZNAMY/TAB/blob/master/CONTRIBUTING.md)

api/src/main/java/me/neznamy/tab/api/bossbar/BossBar.java

@@ -193,6 +193,20 @@ public interface BossBar {
      */
     @NotNull List<TabPlayer> getPlayers();
 
+    /**
+     * Returns {@code true} if this bossbar is visible to specified player based on
+     * display condition or adding via {@link #addPlayer(TabPlayer)}, {@code false} if not.
+     * <p>
+     * This may return {@code true} even if player cannot physically see the bossbar due to
+     * having it disabled via toggle command or {@link BossBarManager#toggleBossBar(TabPlayer, boolean)}
+     * (or {@link BossBarManager#setBossBarVisible(TabPlayer, boolean, boolean)}).
+     *
+     * @param   player
+     *          Player to check
+     * @return  {@code true} if player is allowed to see this Boss Bar, {@code false} if not.
+     */
+    boolean containsPlayer(TabPlayer player);
+
     /**
      * Returns {@code true} if this boss bar is configured as announcement-only bar,
      * {@code false} if not.

api/src/main/java/me/neznamy/tab/api/scoreboard/ScoreboardManager.java

@@ -6,6 +6,7 @@ import java.util.Map;
 import lombok.NonNull;
 import me.neznamy.tab.api.TabPlayer;
 import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
 
 /**
  * Interface allowing work with scoreboards, such as creating,
@@ -164,5 +165,5 @@ public interface ScoreboardManager {
      *          player to get active scoreboard of
      * @return  player's active scoreboard or {@code null} if player has no scoreboard
      */
-    @NotNull Scoreboard getActiveScoreboard(@NonNull TabPlayer player);
+    @Nullable Scoreboard getActiveScoreboard(@NonNull TabPlayer player);
 }

build.gradle.kts

@@ -4,7 +4,7 @@ plugins {
 
 allprojects {
     group = "me.neznamy"
-    version = "4.0.2"
+    version = "4.0.4"
     description = "An all-in-one solution that works"
 
     ext.set("id", "tab")
@@ -15,7 +15,6 @@ allprojects {
 val platforms = setOf(
     projects.bukkit,
     projects.bungeecord,
-    projects.krypton,
     projects.velocity,
     projects.sponge7,
     projects.sponge8,

bukkit/build.gradle.kts

@@ -4,5 +4,10 @@ dependencies {
     compileOnly("org.purpurmc.purpur:purpur-api:1.16.5-R0.1-SNAPSHOT")
     compileOnly("me.clip:placeholderapi:2.11.2")
     compileOnly("com.mojang:authlib:1.5.25")
-    compileOnly("com.github.MilkBowl:VaultAPI:1.7")
+    compileOnly("com.github.MilkBowl:VaultAPI:1.7") {
+        exclude("org.bukkit", "bukkit")
+    }
+    compileOnly("LibsDisguises:LibsDisguises:10.0.21") {
+        exclude("org.spigotmc", "spigot")
+    }
 }

bukkit/src/main/java/me/neznamy/tab/platforms/bukkit/BukkitEventListener.java

@@ -1,5 +1,7 @@
 package me.neznamy.tab.platforms.bukkit;
 
+import me.neznamy.tab.platforms.bukkit.platform.BukkitPlatform;
+import me.neznamy.tab.shared.TAB;
 import me.neznamy.tab.shared.platform.EventListener;
 import me.neznamy.tab.shared.platform.TabPlayer;
 import org.bukkit.entity.Player;
@@ -10,6 +12,7 @@ import org.bukkit.event.player.PlayerChangedWorldEvent;
 import org.bukkit.event.player.PlayerCommandPreprocessEvent;
 import org.bukkit.event.player.PlayerJoinEvent;
 import org.bukkit.event.player.PlayerQuitEvent;
+import org.jetbrains.annotations.NotNull;
 
 /**
  * The core for bukkit forwarding events into all enabled features
@@ -21,7 +24,7 @@ public class BukkitEventListener extends EventListener<Player> implements Listen
         quit(e.getPlayer().getUniqueId());
     }
 
-    @EventHandler(priority = EventPriority.LOWEST)
+    @EventHandler(priority = EventPriority.LOW)
     public void onJoin(PlayerJoinEvent e) {
         join(e.getPlayer());
     }
@@ -37,7 +40,8 @@ public class BukkitEventListener extends EventListener<Player> implements Listen
     }
 
     @Override
-    public TabPlayer createPlayer(Player player) {
-        return new BukkitTabPlayer(player);
+    @NotNull
+    public TabPlayer createPlayer(@NotNull Player player) {
+        return new BukkitTabPlayer((BukkitPlatform) TAB.getInstance().getPlatform(), player);
     }
-}
+}

bukkit/src/main/java/me/neznamy/tab/platforms/bukkit/BukkitPipelineInjector.java

@@ -3,17 +3,19 @@ package me.neznamy.tab.platforms.bukkit;
 import com.mojang.authlib.GameProfile;
 import io.netty.channel.Channel;
 import lombok.SneakyThrows;
+import me.neznamy.tab.platforms.bukkit.nms.BukkitReflection;
 import me.neznamy.tab.platforms.bukkit.scoreboard.PacketScoreboard;
 import me.neznamy.tab.shared.TabConstants;
 import me.neznamy.tab.shared.features.nametags.NameTag;
 import me.neznamy.tab.shared.platform.TabList;
 import me.neznamy.tab.shared.platform.TabPlayer;
 import me.neznamy.tab.shared.chat.IChatBaseComponent;
-import me.neznamy.tab.platforms.bukkit.nms.storage.nms.NMSStorage;
+import me.neznamy.tab.platforms.bukkit.nms.NMSStorage;
 import me.neznamy.tab.shared.TAB;
 import me.neznamy.tab.shared.features.injection.NettyPipelineInjector;
 import me.neznamy.tab.shared.features.sorting.Sorting;
 import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
 
 import java.util.*;
 import java.util.stream.Collectors;
@@ -31,6 +33,7 @@ public class BukkitPipelineInjector extends NettyPipelineInjector {
     }
 
     @Override
+    @Nullable
     protected Channel getChannel(@NotNull TabPlayer player) {
         BukkitTabPlayer bukkit = (BukkitTabPlayer) player;
         NMSStorage nms = NMSStorage.getInstance();
@@ -45,8 +48,13 @@ public class BukkitPipelineInjector extends NettyPipelineInjector {
     @Override
     @SneakyThrows
     public void onDisplayObjective(@NotNull TabPlayer player, @NotNull Object packet) {
-        TAB.getInstance().getFeatureManager().onDisplayObjective(player,
-                PacketScoreboard.DisplayObjective_POSITION.getInt(packet),
+        int position;
+        if (BukkitReflection.is1_20_2Plus()) {
+            position = ((Enum<?>)PacketScoreboard.DisplayObjective_POSITION.get(packet)).ordinal();
+        } else {
+            position = PacketScoreboard.DisplayObjective_POSITION.getInt(packet);
+        }
+        TAB.getInstance().getFeatureManager().onDisplayObjective(player, position,
                 (String) PacketScoreboard.DisplayObjective_OBJECTIVE_NAME.get(packet));
     }
 
@@ -75,13 +83,12 @@ public class BukkitPipelineInjector extends NettyPipelineInjector {
 
     @Override
     public boolean isPlayerInfo(@NotNull Object packet) {
-        return BukkitTabList.PacketPlayOutPlayerInfoClass.isInstance(packet);
+        return BukkitTabList.PlayerInfoClass.isInstance(packet);
     }
 
     @Override
     @SneakyThrows
     public void onPlayerInfo(@NotNull TabPlayer receiver, @NotNull Object packet) {
-        NMSStorage nms = NMSStorage.getInstance();
         List<String> actions;
         if (BukkitTabList.ClientboundPlayerInfoRemovePacket != null) {
             //1.19.3+
@@ -92,27 +99,42 @@ public class BukkitPipelineInjector extends NettyPipelineInjector {
         }
         List<Object> updatedList = new ArrayList<>();
         for (Object nmsData : (List<?>) BukkitTabList.PLAYERS.get(packet)) {
-            GameProfile profile = (GameProfile) BukkitTabList.PlayerInfoData_getProfile.invoke(nmsData);
+            GameProfile profile = (GameProfile) BukkitTabList.PlayerInfoData_Profile.get(nmsData);
+            UUID id;
+            if (BukkitReflection.is1_19_3Plus()) {
+                id = (UUID) BukkitTabList.PlayerInfoData_UUID.get(nmsData);
+            } else {
+                id = profile.getId();
+            }
             Object displayName = null;
+            int latency = 0;
             if (actions.contains(TabList.Action.UPDATE_DISPLAY_NAME.name()) || actions.contains(TabList.Action.ADD_PLAYER.name())) {
                 displayName = BukkitTabList.PlayerInfoData_DisplayName.get(nmsData);
-                IChatBaseComponent newDisplayName = TAB.getInstance().getFeatureManager().onDisplayNameChange(receiver, profile.getId());
-                if (newDisplayName != null) displayName = nms.toNMSComponent(newDisplayName, receiver.getVersion());
-                if (!nms.is1_19_3Plus()) BukkitTabList.PlayerInfoData_DisplayName.set(nmsData, displayName);
+                IChatBaseComponent newDisplayName = TAB.getInstance().getFeatureManager().onDisplayNameChange(receiver, id);
+                if (newDisplayName != null) displayName = TAB.getInstance().getPlatform().toComponent(newDisplayName, receiver.getVersion());
+                if (!BukkitReflection.is1_19_3Plus()) BukkitTabList.PlayerInfoData_DisplayName.set(nmsData, displayName);
             }
-            if (nms.is1_19_3Plus()) {
+            if (actions.contains(TabList.Action.UPDATE_LATENCY.name()) || actions.contains(TabList.Action.ADD_PLAYER.name())) {
+                latency = BukkitTabList.PlayerInfoData_Latency.getInt(nmsData);
+                latency = TAB.getInstance().getFeatureManager().onLatencyChange(receiver, id, latency);
+                if (!BukkitReflection.is1_19_3Plus()) BukkitTabList.PlayerInfoData_Latency.set(nmsData, latency);
+            }
+            if (actions.contains(TabList.Action.ADD_PLAYER.name())) {
+                TAB.getInstance().getFeatureManager().onEntryAdd(receiver, id, profile.getName());
+            }
+            if (BukkitReflection.is1_19_3Plus()) {
                 // 1.19.3 is using records, which do not allow changing final fields, need to rewrite the list entirely
                 updatedList.add(BukkitTabList.newPlayerInfoData.newInstance(
-                        profile.getId(),
+                        id,
                         profile,
                         BukkitTabList.PlayerInfoData_Listed.getBoolean(nmsData),
-                        BukkitTabList.PlayerInfoData_Latency.getInt(nmsData),
+                        latency,
                         BukkitTabList.PlayerInfoData_GameMode.get(nmsData),
                         displayName,
                         BukkitTabList.PlayerInfoData_RemoteChatSession.get(nmsData)));
             }
         }
-        if (nms.is1_19_3Plus()) {
+        if (BukkitReflection.is1_19_3Plus()) {
             BukkitTabList.PLAYERS.set(packet, updatedList);
         }
     }
@@ -130,7 +152,7 @@ public class BukkitPipelineInjector extends NettyPipelineInjector {
         //creating a new list to prevent NoSuchFieldException in minecraft packet encoder when a player is removed
         Collection<String> newList = new ArrayList<>();
         for (String entry : players) {
-            TabPlayer p = TAB.getInstance().getPlayer(entry);
+            TabPlayer p = getPlayer(entry);
             if (p == null) {
                 newList.add(entry);
                 continue;

bukkit/src/main/java/me/neznamy/tab/platforms/bukkit/BukkitPlaceholderRegistry.java

@@ -1,82 +0,0 @@
-package me.neznamy.tab.platforms.bukkit;
-
-import me.neznamy.tab.shared.TabConstants;
-import me.neznamy.tab.api.placeholder.PlaceholderManager;
-import me.neznamy.tab.shared.placeholders.UniversalPlaceholderRegistry;
-import net.milkbowl.vault.chat.Chat;
-import org.bukkit.Bukkit;
-import org.bukkit.entity.Player;
-import org.bukkit.plugin.RegisteredServiceProvider;
-import org.jetbrains.annotations.NotNull;
-
-import java.lang.reflect.Field;
-import java.lang.reflect.Method;
-
-/**
- * Bukkit registry to register bukkit-only and universal placeholders
- */
-public class BukkitPlaceholderRegistry extends UniversalPlaceholderRegistry {
-
-    private Chat chat;
-
-    /** NMS server to get TPS from on spigot */
-    private Object server;
-
-    /** TPS field*/
-    private Field recentTps;
-
-    /** Detection for presence of Paper's TPS getter */
-    private Method paperTps;
-
-    /** Detection for presence of Paper's MSPT getter */
-    private Method paperMspt;
-
-    /**
-     * Constructs new instance and loads hooks
-     */
-    public BukkitPlaceholderRegistry() {
-        try {
-            server = Bukkit.getServer().getClass().getMethod("getServer").invoke(Bukkit.getServer());
-            recentTps = server.getClass().getField("recentTps");
-        } catch (ReflectiveOperationException e) {
-            //not spigot
-        }
-        try { paperTps = Bukkit.class.getMethod("getTPS"); } catch (NoSuchMethodException ignored) {}
-        try { paperMspt = Bukkit.class.getMethod("getAverageTickTime"); } catch (NoSuchMethodException ignored) {}
-        if (Bukkit.getPluginManager().isPluginEnabled("Vault")) {
-            RegisteredServiceProvider<Chat> rspChat = Bukkit.getServicesManager().getRegistration(Chat.class);
-            if (rspChat != null) chat = rspChat.getProvider();
-        }
-    }
-
-    @SuppressWarnings("deprecation")
-    @Override
-    public void registerPlaceholders(@NotNull PlaceholderManager manager) {
-        manager.registerPlayerPlaceholder(TabConstants.Placeholder.DISPLAY_NAME, 500, p -> ((Player) p.getPlayer()).getDisplayName());
-        if (paperTps != null) {
-            manager.registerServerPlaceholder(TabConstants.Placeholder.TPS, 1000, () -> formatTPS(Bukkit.getTPS()[0]));
-        } else if (recentTps != null) {
-            manager.registerServerPlaceholder(TabConstants.Placeholder.TPS, 1000, () -> {
-                try {
-                    return formatTPS(((double[]) recentTps.get(server))[0]);
-                } catch (IllegalAccessException e) {
-                    return -1;
-                }
-            });
-        } else {
-            manager.registerServerPlaceholder(TabConstants.Placeholder.TPS, -1, () -> -1);
-        }
-        if (paperMspt != null) {
-            manager.registerServerPlaceholder(TabConstants.Placeholder.MSPT, 1000, () -> format(Bukkit.getAverageTickTime()));
-        }
-        manager.registerPlayerPlaceholder(TabConstants.Placeholder.HEALTH, 100, p -> (int) Math.ceil(((Player) p.getPlayer()).getHealth()));
-        if (chat != null) {
-            manager.registerPlayerPlaceholder("%vault-prefix%", 1000, p -> chat.getPlayerPrefix((Player) p.getPlayer()));
-            manager.registerPlayerPlaceholder("%vault-suffix%", 1000, p -> chat.getPlayerSuffix((Player) p.getPlayer()));
-        } else {
-            manager.registerServerPlaceholder("%vault-prefix%", -1, () -> "");
-            manager.registerServerPlaceholder("%vault-suffix%", -1, () -> "");
-        }
-        super.registerPlaceholders(manager);
-    }
-}

bukkit/src/main/java/me/neznamy/tab/platforms/bukkit/BukkitPlatform.java

@@ -1,168 +0,0 @@
-package me.neznamy.tab.platforms.bukkit;
-
-import lombok.Getter;
-import lombok.RequiredArgsConstructor;
-import lombok.Setter;
-import lombok.SneakyThrows;
-import me.clip.placeholderapi.PlaceholderAPI;
-import me.neznamy.tab.shared.GroupManager;
-import me.neznamy.tab.shared.TabConstants;
-import me.neznamy.tab.shared.chat.IChatBaseComponent;
-import me.neznamy.tab.shared.chat.rgb.RGBUtils;
-import me.neznamy.tab.shared.features.injection.PipelineInjector;
-import me.neznamy.tab.shared.features.types.TabFeature;
-import me.neznamy.tab.platforms.bukkit.features.BukkitTabExpansion;
-import me.neznamy.tab.platforms.bukkit.features.PerWorldPlayerList;
-import me.neznamy.tab.platforms.bukkit.features.WitherBossBar;
-import me.neznamy.tab.platforms.bukkit.features.BukkitNameTagX;
-import me.neznamy.tab.platforms.bukkit.nms.storage.nms.NMSStorage;
-import me.neznamy.tab.shared.TAB;
-import me.neznamy.tab.shared.backend.BackendPlatform;
-import me.neznamy.tab.shared.features.PlaceholderManagerImpl;
-import me.neznamy.tab.shared.features.bossbar.BossBarManagerImpl;
-import me.neznamy.tab.shared.features.nametags.NameTag;
-import me.neznamy.tab.shared.hook.LuckPermsHook;
-import me.neznamy.tab.shared.placeholders.PlayerPlaceholderImpl;
-import me.neznamy.tab.shared.placeholders.expansion.EmptyTabExpansion;
-import me.neznamy.tab.shared.placeholders.expansion.TabExpansion;
-import me.neznamy.tab.shared.util.ReflectionUtils;
-import net.milkbowl.vault.permission.Permission;
-import org.bukkit.Bukkit;
-import org.bukkit.entity.Player;
-import org.bukkit.plugin.RegisteredServiceProvider;
-import org.bukkit.plugin.java.JavaPlugin;
-import org.jetbrains.annotations.NotNull;
-import org.jetbrains.annotations.Nullable;
-
-import java.util.Collection;
-
-/**
- * Implementation of Platform interface for Bukkit platform
- */
-@RequiredArgsConstructor
-@Getter
-public class BukkitPlatform implements BackendPlatform {
-
-    /** Plugin instance for registering tasks and events */
-    private final JavaPlugin plugin;
-
-    /** Variables checking presence of other plugins to hook into */
-    private final boolean placeholderAPI = ReflectionUtils.classExists("me.clip.placeholderapi.PlaceholderAPI");
-    @Setter private boolean libsDisguisesEnabled = ReflectionUtils.classExists("me.libraryaddict.disguise.DisguiseAPI");
-
-    public @NotNull BossBarManagerImpl getLegacyBossBar() {
-        return new WitherBossBar(plugin);
-    }
-
-    @Override
-    public void loadPlayers() {
-        for (Player p : getOnlinePlayers()) {
-            TAB.getInstance().addPlayer(new BukkitTabPlayer(p));
-        }
-    }
-
-    @Override
-    public void registerPlaceholders() {
-        new BukkitPlaceholderRegistry().registerPlaceholders(TAB.getInstance().getPlaceholderManager());
-    }
-
-    @Override
-    public @Nullable PipelineInjector createPipelineInjector() {
-        return NMSStorage.getInstance().getMinorVersion() >= 8 ? new BukkitPipelineInjector() : null;
-    }
-
-    @Override
-    public @NotNull NameTag getUnlimitedNameTags() {
-        return new BukkitNameTagX(plugin);
-    }
-
-    @Override
-    public @NotNull TabExpansion createTabExpansion() {
-        if (placeholderAPI) {
-            BukkitTabExpansion expansion = new BukkitTabExpansion();
-            expansion.register();
-            return expansion;
-        }
-        return new EmptyTabExpansion();
-    }
-
-    @Override
-    public @Nullable TabFeature getPerWorldPlayerList() {
-        return new PerWorldPlayerList(plugin);
-    }
-
-    /**
-     * Returns online players from Bukkit API
-     *
-     * @return  online players from Bukkit API
-     */
-    @SuppressWarnings("unchecked")
-    @SneakyThrows
-    private @NotNull Player[] getOnlinePlayers() {
-        Object players = Bukkit.class.getMethod("getOnlinePlayers").invoke(null);
-        if (players instanceof Player[]) {
-            //1.7-
-            return (Player[]) players;
-        } else {
-            //1.8+
-            return ((Collection<Player>)players).toArray(new Player[0]);
-        }
-    }
-
-    @Override
-    public void registerUnknownPlaceholder(@NotNull String identifier) {
-        PlaceholderManagerImpl pl = TAB.getInstance().getPlaceholderManager();
-        int refresh = pl.getRefreshInterval(identifier);
-        if (identifier.startsWith("%rel_")) {
-            //relational placeholder
-            TAB.getInstance().getPlaceholderManager().registerRelationalPlaceholder(identifier, pl.getRefreshInterval(identifier), (viewer, target) ->
-                    placeholderAPI ? PlaceholderAPI.setRelationalPlaceholders((Player) viewer.getPlayer(), (Player) target.getPlayer(), identifier) : identifier);
-        } else if (identifier.startsWith("%sync:")) {
-            String syncedPlaceholder = "%" + identifier.substring(6, identifier.length()-1) + "%";
-            PlayerPlaceholderImpl[] ppl = new PlayerPlaceholderImpl[1];
-            ppl[0] = pl.registerPlayerPlaceholder(identifier, refresh, p -> {
-                try {
-                    Bukkit.getScheduler().runTask(plugin, () -> {
-                        long time = System.nanoTime();
-                        ppl[0].updateValue(p, placeholderAPI ? PlaceholderAPI.setPlaceholders((Player) p.getPlayer(), syncedPlaceholder) : identifier);
-                        TAB.getInstance().getCPUManager().addPlaceholderTime(identifier, System.nanoTime()-time);
-                    });
-                    return null;
-                } catch (UnsupportedOperationException e) {
-                    return "<Folia does not support sync placeholders>";
-                }
-            });
-        } else if (identifier.startsWith("%server_")) {
-            TAB.getInstance().getPlaceholderManager().registerServerPlaceholder(identifier, refresh, () ->
-                    placeholderAPI ? PlaceholderAPI.setPlaceholders(null, identifier) : identifier);
-        } else {
-            TAB.getInstance().getPlaceholderManager().registerPlayerPlaceholder(identifier, refresh, p ->
-                    placeholderAPI ? PlaceholderAPI.setPlaceholders((Player) p.getPlayer(), identifier) : identifier);
-        }
-    }
-
-    @Override
-    public void sendConsoleMessage(@NotNull IChatBaseComponent message) {
-        Bukkit.getConsoleSender().sendMessage("[TAB] " + RGBUtils.getInstance().convertToBukkitFormat(message.toFlatText(),
-                TAB.getInstance().getServerVersion().getMinorVersion() >= 16));
-    }
-
-    @Override
-    public String getServerVersionInfo() {
-        return "[Bukkit] " + Bukkit.getName() + " - " + Bukkit.getBukkitVersion().split("-")[0] + " (" + NMSStorage.getInstance().getServerPackage() + ")";
-    }
-
-    @Override
-    @NotNull public GroupManager detectPermissionPlugin() {
-        if (LuckPermsHook.getInstance().isInstalled()) {
-            return new GroupManager("LuckPerms", LuckPermsHook.getInstance().getGroupFunction());
-        }
-        if (Bukkit.getPluginManager().isPluginEnabled("Vault")) {
-            RegisteredServiceProvider<Permission> provider = Bukkit.getServicesManager().getRegistration(Permission.class);
-            if (provider != null && !provider.getProvider().getName().equals("SuperPerms")) {
-                return new GroupManager(provider.getProvider().getName(), p -> provider.getProvider().getPrimaryGroup((Player) p.getPlayer()));
-            }
-        }
-        return new GroupManager("None", p -> TabConstants.NO_GROUP);
-    }
-}

bukkit/src/main/java/me/neznamy/tab/platforms/bukkit/BukkitTAB.java

@@ -1,52 +1,28 @@
 package me.neznamy.tab.platforms.bukkit;
 
+import me.neznamy.tab.platforms.bukkit.nms.NMSStorage;
+import me.neznamy.tab.platforms.bukkit.platform.BukkitPlatform;
+import me.neznamy.tab.platforms.bukkit.platform.FoliaPlatform;
 import me.neznamy.tab.shared.ProtocolVersion;
-import me.neznamy.tab.shared.TabConstants;
 import me.neznamy.tab.shared.chat.EnumChatFormat;
-import me.neznamy.tab.platforms.bukkit.nms.storage.nms.*;
 import me.neznamy.tab.shared.TAB;
-import org.bstats.bukkit.Metrics;
-import org.bstats.charts.SimplePie;
+import me.neznamy.tab.shared.util.ReflectionUtils;
 import org.bukkit.Bukkit;
-import org.bukkit.command.*;
 import org.bukkit.plugin.java.JavaPlugin;
-import org.jetbrains.annotations.NotNull;
-
-import java.util.Arrays;
-import java.util.List;
-import java.util.concurrent.Callable;
 
 /**
- * Main class for Bukkit platform
+ * Main class for Bukkit.
  */
 public class BukkitTAB extends JavaPlugin {
 
     @Override
     public void onEnable() {
-        String version = Bukkit.getBukkitVersion().split("-")[0];
-        String serverPackage = Bukkit.getServer().getClass().getPackage().getName().split("\\.")[3];
-        Bukkit.getConsoleSender().sendMessage(EnumChatFormat.color("[TAB] Server version: " + version + " (" + serverPackage + ")"));
         if (!isVersionSupported()) {
             Bukkit.getPluginManager().disablePlugin(this);
             return;
         }
-        BukkitPlatform platform = new BukkitPlatform(this);
-        TAB.setInstance(new TAB(platform, ProtocolVersion.fromFriendlyName(version), getDataFolder()));
-        if (TAB.getInstance().getServerVersion() == ProtocolVersion.UNKNOWN_SERVER_VERSION) {
-            Bukkit.getConsoleSender().sendMessage(EnumChatFormat.color("&c[TAB] Unknown server version: " + Bukkit.getBukkitVersion() + "! Plugin may not work correctly."));
-        }
-        Bukkit.getPluginManager().registerEvents(new BukkitEventListener(), this);
-        TAB.getInstance().load();
-        Metrics metrics = new Metrics(this, 5304);
-        metrics.addCustomChart(new SimplePie(TabConstants.MetricsChart.UNLIMITED_NAME_TAG_MODE_ENABLED, () -> TAB.getInstance().getFeatureManager().isFeatureEnabled(TabConstants.Feature.UNLIMITED_NAME_TAGS) ? "Yes" : "No"));
-        metrics.addCustomChart(new SimplePie(TabConstants.MetricsChart.PLACEHOLDER_API, () -> platform.isPlaceholderAPI() ? "Yes" : "No"));
-        metrics.addCustomChart(new SimplePie(TabConstants.MetricsChart.PERMISSION_SYSTEM, () -> TAB.getInstance().getGroupManager().getPermissionPlugin()));
-        metrics.addCustomChart(new SimplePie(TabConstants.MetricsChart.SERVER_VERSION, () -> "1." + TAB.getInstance().getServerVersion().getMinorVersion() + ".x"));
-        PluginCommand cmd = Bukkit.getPluginCommand(TabConstants.COMMAND_BACKEND);
-        if (cmd == null) return;
-        BukkitTabCommand command = new BukkitTabCommand();
-        cmd.setExecutor(command);
-        cmd.setTabCompleter(command);
+        TAB.create(ReflectionUtils.classExists("io.papermc.paper.threadedregions.RegionizedServer") ?
+                new FoliaPlatform(this) : new BukkitPlatform(this));
     }
 
     @Override
@@ -64,11 +40,9 @@ public class BukkitTAB extends JavaPlugin {
      */
     private boolean isVersionSupported() {
         try {
-            long time = System.currentTimeMillis();
-            NMSStorage.setInstance(getNMSLoader());
-            Bukkit.getConsoleSender().sendMessage(EnumChatFormat.color("[TAB] Loaded NMS hook in " + (System.currentTimeMillis()-time) + "ms"));
+            NMSStorage.setInstance(new NMSStorage());
             return true;
-        } catch (IllegalStateException ex) {
+        } catch (Exception ex) {
             if (ProtocolVersion.fromFriendlyName(Bukkit.getBukkitVersion().split("-")[0]) == ProtocolVersion.UNKNOWN_SERVER_VERSION) {
                 Bukkit.getConsoleSender().sendMessage(EnumChatFormat.color("&c[TAB] Your server version is not compatible. " +
                         "This plugin version was made for " + ProtocolVersion.values()[ProtocolVersion.values().length-1].getFriendlyName() +
@@ -80,19 +54,4 @@ public class BukkitTAB extends JavaPlugin {
             return false;
         }
     }
-
-    private @NotNull NMSStorage getNMSLoader() {
-        List<Callable<NMSStorage>> loaders = Arrays.asList(
-                BukkitLegacyNMSStorage::new,
-                BukkitModernNMSStorage::new,
-                MojangModernNMSStorage::new,
-                ThermosNMSStorage::new
-        );
-        for (Callable<NMSStorage> loader : loaders) {
-            try {
-                return loader.call();
-            } catch (Exception ignored) {}
-        }
-        throw new IllegalStateException("Unsupported server version");
-    }
 }

bukkit/src/main/java/me/neznamy/tab/platforms/bukkit/BukkitTabCommand.java

@@ -11,7 +11,7 @@ import org.bukkit.command.TabCompleter;
 import org.bukkit.entity.Player;
 import org.jetbrains.annotations.NotNull;
 
-import java.util.ArrayList;
+import java.util.Collections;
 import java.util.List;
 
 /**
@@ -20,7 +20,7 @@ import java.util.List;
 public class BukkitTabCommand implements CommandExecutor, TabCompleter {
 
     @Override
-    public boolean onCommand(@NotNull CommandSender sender, @NotNull Command command, @NotNull String label, String[] args) {
+    public boolean onCommand(@NotNull CommandSender sender, @NotNull Command command, @NotNull String label, @NotNull String[] args) {
         if (TAB.getInstance().isPluginDisabled()) {
             for (String message : TAB.getInstance().getDisabledCommand().execute(args, sender.hasPermission(TabConstants.Permission.COMMAND_RELOAD), sender.hasPermission(TabConstants.Permission.COMMAND_ALL))) {
                 sender.sendMessage(EnumChatFormat.color(message));
@@ -37,11 +37,12 @@ public class BukkitTabCommand implements CommandExecutor, TabCompleter {
     }
 
     @Override
-    public List<String> onTabComplete(@NotNull CommandSender sender, @NotNull Command command, @NotNull String alias, String[] args) {
+    @NotNull
+    public List<String> onTabComplete(@NotNull CommandSender sender, @NotNull Command command, @NotNull String alias, @NotNull String[] args) {
         TabPlayer p = null;
         if (sender instanceof Player) {
             p = TAB.getInstance().getPlayer(((Player)sender).getUniqueId());
-            if (p == null) return new ArrayList<>(); //player not loaded correctly
+            if (p == null) return Collections.emptyList(); //player not loaded correctly
         }
         return TAB.getInstance().getCommand().complete(p, args);
     }

bukkit/src/main/java/me/neznamy/tab/platforms/bukkit/BukkitTabList.java

@@ -2,12 +2,13 @@ package me.neznamy.tab.platforms.bukkit;
 
 import com.mojang.authlib.GameProfile;
 import com.mojang.authlib.properties.Property;
+import lombok.Getter;
 import lombok.RequiredArgsConstructor;
 import lombok.SneakyThrows;
-import me.neznamy.tab.platforms.bukkit.nms.storage.nms.NMSStorage;
-import me.neznamy.tab.shared.ProtocolVersion;
+import me.neznamy.tab.platforms.bukkit.nms.BukkitReflection;
 import me.neznamy.tab.shared.chat.IChatBaseComponent;
 import me.neznamy.tab.shared.platform.TabList;
+import me.neznamy.tab.shared.platform.TabList.Entry.Builder;
 import me.neznamy.tab.shared.util.ReflectionUtils;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
@@ -15,7 +16,6 @@ import org.jetbrains.annotations.Nullable;
 import java.lang.reflect.Array;
 import java.lang.reflect.Constructor;
 import java.lang.reflect.Field;
-import java.lang.reflect.Method;
 import java.util.*;
 
 /**
@@ -33,169 +33,224 @@ import java.util.*;
 public class BukkitTabList implements TabList {
 
     // NMS Fields
-    public static Class<?> PacketPlayOutPlayerListHeaderFooterClass;
-    public static Constructor<?> newPacketPlayOutPlayerListHeaderFooter;
-    public static Field HEADER;
-    public static Field FOOTER;
+    private static Class<?> HeaderFooterClass;
+    private static Constructor<?> newHeaderFooter;
+    private static Field HEADER;
+    private static Field FOOTER;
 
-    public static Class<?> PacketPlayOutPlayerInfoClass;
-    public static Constructor<?> newPacketPlayOutPlayerInfo;
+    public static Class<?> PlayerInfoClass;
+    private static Constructor<?> newPlayerInfo;
     public static Field ACTION;
     public static Field PLAYERS;
-    public static Class<Enum> EnumPlayerInfoActionClass;
-    public static Class<Enum> EnumGamemodeClass;
+    private static Class<Enum> ActionClass;
     public static Class<?> ClientboundPlayerInfoRemovePacket;
-    public static Class<?> RemoteChatSession$Data;
-    public static Constructor<?> newClientboundPlayerInfoRemovePacket;
+    private static Class<?> RemoteChatSession$Data;
+    private static Constructor<?> newClientboundPlayerInfoRemovePacket;
+    private static Class<?> EntityPlayer;
 
-    public static Class<?> PlayerInfoDataClass;
     public static Constructor<?> newPlayerInfoData;
-    public static Method PlayerInfoData_getProfile;
+    public static Field PlayerInfoData_UUID;
+    public static Field PlayerInfoData_Profile;
     public static Field PlayerInfoData_Latency;
     public static Field PlayerInfoData_GameMode;
     public static Field PlayerInfoData_DisplayName;
     public static Field PlayerInfoData_Listed;
     public static Field PlayerInfoData_RemoteChatSession;
 
+    private static Object[] gameModes;
+
+    @Getter
+    private static boolean available;
+
     /** Player this TabList belongs to */
     private final BukkitTabPlayer player;
 
-    public static void load(NMSStorage nms) throws NoSuchMethodException {
-        if (nms.getMinorVersion() >= 17) {
-            newPacketPlayOutPlayerListHeaderFooter = PacketPlayOutPlayerListHeaderFooterClass.getConstructor(nms.IChatBaseComponent, nms.IChatBaseComponent);
+    public static void load() throws NoSuchMethodException, ClassNotFoundException {
+        if (BukkitReflection.getMinorVersion() < 8) return; // Not supported (yet?)
+
+        // Classes
+        Class<?> playerInfoDataClass;
+        Class<?> IChatBaseComponent;
+        Class<Enum> EnumGamemodeClass;
+        if (BukkitReflection.isMojangMapped()) {
+            IChatBaseComponent = Class.forName("net.minecraft.network.chat.Component");
+            EntityPlayer = Class.forName("net.minecraft.server.level.ServerPlayer");
+            EnumGamemodeClass = (Class<Enum>) Class.forName("net.minecraft.world.level.GameType");
+            HeaderFooterClass = Class.forName("net.minecraft.network.protocol.game.ClientboundTabListPacket");
+            if (BukkitReflection.is1_19_3Plus()) {
+                ClientboundPlayerInfoRemovePacket = Class.forName("net.minecraft.network.protocol.game.ClientboundPlayerInfoRemovePacket");
+                PlayerInfoClass = Class.forName("net.minecraft.network.protocol.game.ClientboundPlayerInfoUpdatePacket");
+                ActionClass = (Class<Enum>) Class.forName("net.minecraft.network.protocol.game.ClientboundPlayerInfoUpdatePacket$Action");
+                playerInfoDataClass = Class.forName("net.minecraft.network.protocol.game.ClientboundPlayerInfoUpdatePacket$Entry");
+                RemoteChatSession$Data = Class.forName("net.minecraft.network.chat.RemoteChatSession$Data");
+            } else {
+                PlayerInfoClass = Class.forName("net.minecraft.network.protocol.game.ClientboundPlayerInfoPacket");
+                ActionClass = (Class<Enum>) Class.forName("net.minecraft.network.protocol.game.ClientboundPlayerInfoPacket$Action");
+                playerInfoDataClass = Class.forName("net.minecraft.network.protocol.game.ClientboundPlayerInfoPacket$PlayerUpdate");
+            }
+        } else if (BukkitReflection.getMinorVersion() >= 17) {
+            IChatBaseComponent = Class.forName("net.minecraft.network.chat.IChatBaseComponent");
+            EntityPlayer = Class.forName("net.minecraft.server.level.EntityPlayer");
+            EnumGamemodeClass = (Class<Enum>) Class.forName("net.minecraft.world.level.EnumGamemode");
+            HeaderFooterClass = Class.forName("net.minecraft.network.protocol.game.PacketPlayOutPlayerListHeaderFooter");
+            if (BukkitReflection.is1_19_3Plus()) {
+                ClientboundPlayerInfoRemovePacket = Class.forName("net.minecraft.network.protocol.game.ClientboundPlayerInfoRemovePacket");
+                PlayerInfoClass = Class.forName("net.minecraft.network.protocol.game.ClientboundPlayerInfoUpdatePacket");
+                ActionClass = (Class<Enum>) Class.forName("net.minecraft.network.protocol.game.ClientboundPlayerInfoUpdatePacket$a");
+                playerInfoDataClass = Class.forName("net.minecraft.network.protocol.game.ClientboundPlayerInfoUpdatePacket$b");
+                RemoteChatSession$Data = Class.forName("net.minecraft.network.chat.RemoteChatSession$a");
+            } else {
+                PlayerInfoClass = Class.forName("net.minecraft.network.protocol.game.PacketPlayOutPlayerInfo");
+                ActionClass = (Class<Enum>) Class.forName("net.minecraft.network.protocol.game.PacketPlayOutPlayerInfo$EnumPlayerInfoAction");
+                playerInfoDataClass = Class.forName("net.minecraft.network.protocol.game.PacketPlayOutPlayerInfo$PlayerInfoData");
+            }
         } else {
-            newPacketPlayOutPlayerListHeaderFooter = PacketPlayOutPlayerListHeaderFooterClass.getConstructor();
-            HEADER = ReflectionUtils.getFields(PacketPlayOutPlayerListHeaderFooterClass, nms.IChatBaseComponent).get(0);
-            FOOTER = ReflectionUtils.getFields(PacketPlayOutPlayerListHeaderFooterClass, nms.IChatBaseComponent).get(1);
+            IChatBaseComponent = BukkitReflection.getLegacyClass("IChatBaseComponent");
+            EntityPlayer = BukkitReflection.getLegacyClass("EntityPlayer");
+            HeaderFooterClass = BukkitReflection.getLegacyClass("PacketPlayOutPlayerListHeaderFooter");
+            PlayerInfoClass = BukkitReflection.getLegacyClass("PacketPlayOutPlayerInfo");
+            ActionClass = (Class<Enum>) BukkitReflection.getLegacyClass("PacketPlayOutPlayerInfo$EnumPlayerInfoAction", "EnumPlayerInfoAction");
+            playerInfoDataClass = BukkitReflection.getLegacyClass("PacketPlayOutPlayerInfo$PlayerInfoData", "PlayerInfoData");
+            EnumGamemodeClass = (Class<Enum>) BukkitReflection.getLegacyClass("EnumGamemode", "WorldSettings$EnumGamemode");
         }
-        if (nms.is1_19_3Plus()) {
+
+        // Header & Footer
+        if (BukkitReflection.getMinorVersion() >= 17) {
+            newHeaderFooter = HeaderFooterClass.getConstructor(IChatBaseComponent, IChatBaseComponent);
+        } else {
+            newHeaderFooter = HeaderFooterClass.getConstructor();
+            HEADER = ReflectionUtils.getFields(HeaderFooterClass, IChatBaseComponent).get(0);
+            FOOTER = ReflectionUtils.getFields(HeaderFooterClass, IChatBaseComponent).get(1);
+        }
+
+        // Info packet
+        PLAYERS = ReflectionUtils.getOnlyField(PlayerInfoClass, List.class);
+        newPlayerInfoData = ReflectionUtils.getOnlyConstructor(playerInfoDataClass);
+        PlayerInfoData_Profile = ReflectionUtils.getOnlyField(playerInfoDataClass, GameProfile.class);
+        PlayerInfoData_Latency = ReflectionUtils.getOnlyField(playerInfoDataClass, int.class);
+        PlayerInfoData_GameMode = ReflectionUtils.getOnlyField(playerInfoDataClass, EnumGamemodeClass);
+        PlayerInfoData_DisplayName = ReflectionUtils.getOnlyField(playerInfoDataClass, IChatBaseComponent);
+        if (BukkitReflection.is1_19_3Plus()) {
             newClientboundPlayerInfoRemovePacket = ClientboundPlayerInfoRemovePacket.getConstructor(List.class);
-            newPacketPlayOutPlayerInfo = PacketPlayOutPlayerInfoClass.getConstructor(EnumSet.class, Collection.class);
-            ACTION = ReflectionUtils.getOnlyField(PacketPlayOutPlayerInfoClass, EnumSet.class);
+            newPlayerInfo = PlayerInfoClass.getConstructor(EnumSet.class, Collection.class);
+            ACTION = ReflectionUtils.getOnlyField(PlayerInfoClass, EnumSet.class);
+            PlayerInfoData_Listed = ReflectionUtils.getOnlyField(playerInfoDataClass, boolean.class);
+            PlayerInfoData_RemoteChatSession = ReflectionUtils.getOnlyField(playerInfoDataClass, RemoteChatSession$Data);
+            PlayerInfoData_UUID = ReflectionUtils.getOnlyField(playerInfoDataClass, UUID.class);
         } else {
-            newPacketPlayOutPlayerInfo = PacketPlayOutPlayerInfoClass.getConstructor(EnumPlayerInfoActionClass, Array.newInstance(nms.EntityPlayer, 0).getClass());
-            ACTION = ReflectionUtils.getOnlyField(PacketPlayOutPlayerInfoClass, EnumPlayerInfoActionClass);
-        }
-        PLAYERS = ReflectionUtils.getOnlyField(PacketPlayOutPlayerInfoClass, List.class);
-        newPlayerInfoData = ReflectionUtils.getOnlyConstructor(PlayerInfoDataClass);
-        PlayerInfoData_getProfile = ReflectionUtils.getOnlyMethod(PlayerInfoDataClass, GameProfile.class);
-        PlayerInfoData_Latency = ReflectionUtils.getOnlyField(PlayerInfoDataClass, int.class);
-        PlayerInfoData_GameMode = ReflectionUtils.getOnlyField(PlayerInfoDataClass, EnumGamemodeClass);
-        PlayerInfoData_DisplayName = ReflectionUtils.getOnlyField(PlayerInfoDataClass, nms.IChatBaseComponent);
-        if (nms.is1_19_3Plus()) {
-            PlayerInfoData_Listed = ReflectionUtils.getOnlyField(PlayerInfoDataClass, boolean.class);
-            PlayerInfoData_RemoteChatSession = ReflectionUtils.getOnlyField(PlayerInfoDataClass, RemoteChatSession$Data);
+            newPlayerInfo = PlayerInfoClass.getConstructor(ActionClass, Array.newInstance(EntityPlayer, 0).getClass());
+            ACTION = ReflectionUtils.getOnlyField(PlayerInfoClass, ActionClass);
         }
+        gameModes = new Object[] {
+                Enum.valueOf(EnumGamemodeClass, "SURVIVAL"),
+                Enum.valueOf(EnumGamemodeClass, "CREATIVE"),
+                Enum.valueOf(EnumGamemodeClass, "ADVENTURE"),
+                Enum.valueOf(EnumGamemodeClass, "SPECTATOR")
+        };
+        available = true;
     }
 
     @Override
     @SneakyThrows
     public void removeEntry(@NotNull UUID entry) {
+        if (!available) return;
         if (ClientboundPlayerInfoRemovePacket != null) {
             //1.19.3+
             player.sendPacket(newClientboundPlayerInfoRemovePacket.newInstance(Collections.singletonList(entry)));
         } else {
             //1.19.2-
-            player.sendPacket(createPacket(Action.REMOVE_PLAYER, new Entry.Builder(entry).build(), player.getVersion()));
+            player.sendPacket(createPacket(Action.REMOVE_PLAYER, new Builder(entry).build()));
         }
     }
 
     @Override
     public void updateDisplayName(@NotNull UUID entry, @Nullable IChatBaseComponent displayName) {
-        player.sendPacket(createPacket(Action.UPDATE_DISPLAY_NAME,
-                new Entry.Builder(entry).displayName(displayName).build(), player.getVersion())
-        );
+        if (!available) return;
+        player.sendPacket(createPacket(Action.UPDATE_DISPLAY_NAME, new Builder(entry).displayName(displayName).build()));
     }
 
     @Override
     public void updateLatency(@NotNull UUID entry, int latency) {
-        player.sendPacket(createPacket(Action.UPDATE_LATENCY,
-                new Entry.Builder(entry).latency(latency).build(), player.getVersion())
-        );
+        if (!available) return;
+        player.sendPacket(createPacket(Action.UPDATE_LATENCY, new Builder(entry).latency(latency).build()));
     }
 
     @Override
     public void updateGameMode(@NotNull UUID entry, int gameMode) {
-        player.sendPacket(createPacket(Action.UPDATE_GAME_MODE,
-                new Entry.Builder(entry).gameMode(gameMode).build(), player.getVersion())
-        );
+        if (!available) return;
+        player.sendPacket(createPacket(Action.UPDATE_GAME_MODE, new Builder(entry).gameMode(gameMode).build()));
     }
 
     @Override
     public void addEntry(@NotNull Entry entry) {
-        player.sendPacket(createPacket(Action.ADD_PLAYER, entry, player.getVersion()));
+        if (!available) return;
+        player.sendPacket(createPacket(Action.ADD_PLAYER, entry));
     }
 
     @Override
     @SneakyThrows
     public void setPlayerListHeaderFooter(@NotNull IChatBaseComponent header, @NotNull IChatBaseComponent footer) {
-        if (PacketPlayOutPlayerListHeaderFooterClass == null) return;
-        NMSStorage nms = NMSStorage.getInstance();
-        Object packet;
-        if (nms.getMinorVersion() >= 17) {
-            packet = newPacketPlayOutPlayerListHeaderFooter.newInstance(
-                    nms.toNMSComponent(header, player.getVersion()), nms.toNMSComponent(footer, player.getVersion()));
+        if (HeaderFooterClass == null) return;
+        if (BukkitReflection.getMinorVersion() >= 17) {
+            player.sendPacket(newHeaderFooter.newInstance(toComponent(header), toComponent(footer)));
         } else {
-            packet = newPacketPlayOutPlayerListHeaderFooter.newInstance();
-            HEADER.set(packet, nms.toNMSComponent(header, player.getVersion()));
-            FOOTER.set(packet, nms.toNMSComponent(footer, player.getVersion()));
+            Object packet = newHeaderFooter.newInstance();
+            HEADER.set(packet, toComponent(header));
+            FOOTER.set(packet, toComponent(footer));
+            player.sendPacket(packet);
         }
-        player.sendPacket(packet);
     }
 
     @SneakyThrows
-    private Object createPacket(TabList.Action action, TabList.Entry entry, ProtocolVersion clientVersion) {
-        NMSStorage nms = NMSStorage.getInstance();
-        if (nms.getMinorVersion() < 8) return null;
+    @NotNull
+    private Object createPacket(@NotNull Action action, @NotNull Entry entry) {
         Object packet;
         List<Object> players = new ArrayList<>();
-        if (NMSStorage.getInstance().is1_19_3Plus()) {
+        if (BukkitReflection.is1_19_3Plus()) {
             EnumSet<?> actions;
-            if (action == TabList.Action.ADD_PLAYER) {
-                actions = EnumSet.allOf(EnumPlayerInfoActionClass);
+            if (action == Action.ADD_PLAYER) {
+                actions = EnumSet.allOf(ActionClass);
             } else {
-                actions = EnumSet.of(Enum.valueOf(EnumPlayerInfoActionClass, action.name()));
+                actions = EnumSet.of(Enum.valueOf(ActionClass, action.name()));
             }
-            packet = newPacketPlayOutPlayerInfo.newInstance(actions, Collections.emptyList());
-            GameProfile profile = new GameProfile(entry.getUniqueId(), entry.getName());
-            if (entry.getSkin() != null) profile.getProperties().put(TabList.TEXTURES_PROPERTY,
-                    new Property(TabList.TEXTURES_PROPERTY, entry.getSkin().getValue(), entry.getSkin().getSignature()));
+            packet = newPlayerInfo.newInstance(actions, Collections.emptyList());
             players.add(newPlayerInfoData.newInstance(
                     entry.getUniqueId(),
-                    profile,
+                    createProfile(entry.getUniqueId(), entry.getName(), entry.getSkin()),
                     true,
                     entry.getLatency(),
-                    int2GameMode(entry.getGameMode()),
-                    entry.getDisplayName() == null ? null : nms.toNMSComponent(entry.getDisplayName(), clientVersion),
+                    gameModes[entry.getGameMode()],
+                    entry.getDisplayName() == null ? null : toComponent(entry.getDisplayName()),
                     null
             ));
         } else {
-            packet = newPacketPlayOutPlayerInfo.newInstance(Enum.valueOf(EnumPlayerInfoActionClass, action.name()),
-                    Array.newInstance(NMSStorage.getInstance().EntityPlayer, 0));
-            GameProfile profile = new GameProfile(entry.getUniqueId(), entry.getName());
-            if (entry.getSkin() != null) profile.getProperties().put(TabList.TEXTURES_PROPERTY,
-                    new Property(TabList.TEXTURES_PROPERTY, entry.getSkin().getValue(), entry.getSkin().getSignature()));
+            packet = newPlayerInfo.newInstance(Enum.valueOf(ActionClass, action.name()), Array.newInstance(EntityPlayer, 0));
             List<Object> parameters = new ArrayList<>();
-            if (newPlayerInfoData.getParameterTypes()[0] == PacketPlayOutPlayerInfoClass) {
+            if (newPlayerInfoData.getParameterTypes()[0] == PlayerInfoClass) {
                 parameters.add(packet);
             }
-            parameters.add(profile);
+            parameters.add(createProfile(entry.getUniqueId(), entry.getName(), entry.getSkin()));
             parameters.add(entry.getLatency());
-            parameters.add(int2GameMode(entry.getGameMode()));
-            parameters.add(entry.getDisplayName() == null ? null : nms.toNMSComponent(entry.getDisplayName(), clientVersion));
-            if (nms.getMinorVersion() >= 19) parameters.add(null);
+            parameters.add(gameModes[entry.getGameMode()]);
+            parameters.add(entry.getDisplayName() == null ? null : toComponent(entry.getDisplayName()));
+            if (BukkitReflection.getMinorVersion() >= 19) parameters.add(null);
             players.add(newPlayerInfoData.newInstance(parameters.toArray()));
         }
         PLAYERS.set(packet, players);
         return packet;
     }
 
-    private Object int2GameMode(int gameMode) {
-        switch (gameMode) {
-            case 1: return Enum.valueOf(EnumGamemodeClass, "CREATIVE");
-            case 2: return Enum.valueOf(EnumGamemodeClass, "ADVENTURE");
-            case 3: return Enum.valueOf(EnumGamemodeClass, "SPECTATOR");
-            default: return Enum.valueOf(EnumGamemodeClass, "SURVIVAL");
+    private Object toComponent(IChatBaseComponent component) {
+        return player.getPlatform().toComponent(component, player.getVersion());
+    }
+
+    @NotNull
+    private GameProfile createProfile(@NotNull UUID id, @Nullable String name, @Nullable Skin skin) {
+        GameProfile profile = new GameProfile(id, name == null ? "" : name);
+        if (skin != null) {
+            profile.getProperties().put(TabList.TEXTURES_PROPERTY,
+                    new Property(TabList.TEXTURES_PROPERTY, skin.getValue(), skin.getSignature()));
         }
+        return profile;
     }
 }

bukkit/src/main/java/me/neznamy/tab/platforms/bukkit/BukkitTabPlayer.java

@@ -4,24 +4,22 @@ import com.mojang.authlib.GameProfile;
 import com.mojang.authlib.properties.Property;
 import lombok.Getter;
 import lombok.SneakyThrows;
+import me.neznamy.tab.platforms.bukkit.hook.LibsDisguisesHook;
+import me.neznamy.tab.platforms.bukkit.nms.BukkitReflection;
+import me.neznamy.tab.platforms.bukkit.nms.PacketEntityView;
+import me.neznamy.tab.platforms.bukkit.platform.BukkitPlatform;
 import me.neznamy.tab.platforms.bukkit.scoreboard.PacketScoreboard;
-import me.neznamy.tab.shared.chat.rgb.RGBUtils;
-import me.neznamy.tab.shared.hook.ViaVersionHook;
+import me.neznamy.tab.shared.backend.entityview.EntityView;
 import me.neznamy.tab.shared.platform.bossbar.BossBar;
 import me.neznamy.tab.shared.chat.IChatBaseComponent;
 import me.neznamy.tab.shared.platform.TabList;
 import me.neznamy.tab.platforms.bukkit.bossbar.EntityBossBar;
 import me.neznamy.tab.platforms.bukkit.bossbar.BukkitBossBar;
 import me.neznamy.tab.platforms.bukkit.bossbar.ViaBossBar;
-import me.neznamy.tab.platforms.bukkit.nms.datawatcher.DataWatcher;
-import me.neznamy.tab.platforms.bukkit.nms.storage.nms.NMSStorage;
-import me.neznamy.tab.platforms.bukkit.nms.storage.packet.*;
+import me.neznamy.tab.platforms.bukkit.nms.NMSStorage;
 import me.neznamy.tab.shared.platform.Scoreboard;
 import me.neznamy.tab.shared.TAB;
 import me.neznamy.tab.shared.backend.BackendTabPlayer;
-import me.neznamy.tab.shared.backend.EntityData;
-import me.neznamy.tab.shared.backend.Location;
-import org.bukkit.entity.Entity;
 import org.bukkit.entity.Player;
 import org.bukkit.metadata.MetadataValue;
 import org.bukkit.potion.PotionEffectType;
@@ -29,7 +27,6 @@ import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
 import java.util.Collection;
-import java.util.UUID;
 
 /**
  * TabPlayer implementation for Bukkit platform
@@ -39,26 +36,37 @@ import java.util.UUID;
 public class BukkitTabPlayer extends BackendTabPlayer {
 
     /** Player's NMS handle (EntityPlayer), preloading for speed */
+    @NotNull
     private final Object handle;
 
     /** Player's connection for sending packets, preloading for speed */
+    @NotNull
     private final Object playerConnection;
 
+    @NotNull
     private final Scoreboard<BukkitTabPlayer> scoreboard = new PacketScoreboard(this);
+
+    @NotNull
     private final TabList tabList = new BukkitTabList(this);
+
+    @NotNull
     private final BossBar bossBar = TAB.getInstance().getServerVersion().getMinorVersion() >= 9 ?
             new BukkitBossBar(this) : getVersion().getMinorVersion() >= 9 ? new ViaBossBar(this) : new EntityBossBar(this);
 
+    @NotNull
+    private final EntityView entityView = new PacketEntityView(this);
+
     /**
-     * Constructs new instance with given bukkit player and protocol version
+     * Constructs new instance with given bukkit player
      *
+     * @param   platform
+     *          Server platform
      * @param   p
      *          bukkit player
      */
     @SneakyThrows
-    public BukkitTabPlayer(Player p) {
-        super(p, p.getUniqueId(), p.getName(), TAB.getInstance().getConfiguration().getServerName(),
-                p.getWorld().getName(), ViaVersionHook.getInstance().getPlayerVersion(p.getUniqueId(), p.getName()));
+    public BukkitTabPlayer(@NotNull BukkitPlatform platform, @NotNull Player p) {
+        super(platform, p, p.getUniqueId(), p.getName(), p.getWorld().getName());
         handle = NMSStorage.getInstance().getHandle.invoke(player);
         playerConnection = NMSStorage.getInstance().PLAYER_CONNECTION.get(handle);
     }
@@ -69,27 +77,23 @@ public class BukkitTabPlayer extends BackendTabPlayer {
     }
 
     @Override
+    @SneakyThrows
     public int getPing() {
-        if (TAB.getInstance().getServerVersion().getMinorVersion() >= 17) {
+        if (BukkitReflection.getMinorVersion() >= 17) {
             return getPlayer().getPing();
         }
-        try {
-            return NMSStorage.getInstance().PING.getInt(handle);
-        } catch (IllegalAccessException e) {
-            return -1;
-        }
+        return NMSStorage.getInstance().PING.getInt(handle);
     }
 
     @SneakyThrows
-    public void sendPacket(@Nullable Object nmsPacket) {
-        if (nmsPacket == null || !getPlayer().isOnline()) return;
+    public void sendPacket(@NotNull Object nmsPacket) {
+        if (!getPlayer().isOnline()) return;
         NMSStorage.getInstance().sendPacket.invoke(playerConnection, nmsPacket);
     }
 
     @Override
     public void sendMessage(@NotNull IChatBaseComponent message) {
-        getPlayer().sendMessage(RGBUtils.getInstance().convertToBukkitFormat(message.toFlatText(),
-                getVersion().getMinorVersion() >= 16 && TAB.getInstance().getServerVersion().getMinorVersion() >= 16));
+        getPlayer().sendMessage(BukkitUtils.toBukkitFormat(message, getVersion().getMinorVersion() >= 16));
     }
 
     @Override
@@ -99,28 +103,29 @@ public class BukkitTabPlayer extends BackendTabPlayer {
 
     @Override
     public boolean isDisguised() {
-        try {
-            if (!((BukkitPlatform)TAB.getInstance().getPlatform()).isLibsDisguisesEnabled()) return false;
-            return (boolean) Class.forName("me.libraryaddict.disguise.DisguiseAPI").getMethod("isDisguised", Entity.class).invoke(null, getPlayer());
-        } catch (LinkageError | ReflectiveOperationException e) {
-            //java.lang.NoClassDefFoundError: Could not initialize class me.libraryaddict.disguise.DisguiseAPI
-            TAB.getInstance().getErrorManager().printError("Failed to check disguise status using LibsDisguises", e);
-            ((BukkitPlatform)TAB.getInstance().getPlatform()).setLibsDisguisesEnabled(false);
-            return false;
-        }
+        return LibsDisguisesHook.isDisguised(this);
     }
 
     @Override
     @SneakyThrows
+    @Nullable
     public TabList.Skin getSkin() {
         Collection<Property> col = ((GameProfile)NMSStorage.getInstance().getProfile.invoke(handle)).getProperties().get(TabList.TEXTURES_PROPERTY);
         if (col.isEmpty()) return null; //offline mode
         Property property = col.iterator().next();
-        return new TabList.Skin(property.getValue(), property.getSignature());
+        if (BukkitReflection.is1_20_2Plus()) {
+            return new TabList.Skin(
+                    (String) property.getClass().getMethod("value").invoke(property),
+                    (String) property.getClass().getMethod("signature").invoke(property)
+            );
+        } else {
+            return new TabList.Skin(property.getValue(), property.getSignature());
+        }
     }
 
     @Override
-    public @NotNull Player getPlayer() {
+    @NotNull
+    public Player getPlayer() {
         return (Player) player;
     }
 
@@ -129,6 +134,11 @@ public class BukkitTabPlayer extends BackendTabPlayer {
         return getPlayer().isOnline();
     }
 
+    @Override
+    public BukkitPlatform getPlatform() {
+        return (BukkitPlatform) platform;
+    }
+
     @Override
     public boolean isVanished() {
         return getPlayer().getMetadata("vanished").stream().anyMatch(MetadataValue::asBoolean);
@@ -140,39 +150,13 @@ public class BukkitTabPlayer extends BackendTabPlayer {
     }
 
     @Override
-    public void spawnEntity(int entityId, @NotNull UUID id, @NotNull Object entityType, @NotNull Location location, @NotNull EntityData data) {
-        sendPacket(PacketPlayOutSpawnEntityLivingStorage.build(entityId, id, entityType, location, data));
-        if (TAB.getInstance().getServerVersion().getMinorVersion() >= 15) {
-            updateEntityMetadata(entityId, data);
-        }
+    public double getHealth() {
+        return getPlayer().getHealth();
     }
 
     @Override
-    @SneakyThrows
-    public void updateEntityMetadata(int entityId, @NotNull EntityData data) {
-        if (PacketPlayOutEntityMetadataStorage.CONSTRUCTOR.getParameterCount() == 2) {
-            //1.19.3+
-            sendPacket(PacketPlayOutEntityMetadataStorage.CONSTRUCTOR.newInstance(entityId, DataWatcher.packDirty.invoke(data.build())));
-        } else {
-            sendPacket(PacketPlayOutEntityMetadataStorage.CONSTRUCTOR.newInstance(entityId, data.build(), true));
-        }
-    }
-
-    @Override
-    public void teleportEntity(int entityId, @NotNull Location location) {
-        sendPacket(PacketPlayOutEntityTeleportStorage.build(entityId, location));
-    }
-
-    @Override
-    @SneakyThrows
-    public void destroyEntities(int... entities) {
-        if (PacketPlayOutEntityDestroyStorage.CONSTRUCTOR.getParameterTypes()[0] != int.class) {
-            sendPacket(PacketPlayOutEntityDestroyStorage.CONSTRUCTOR.newInstance(new Object[]{entities}));
-        } else {
-            //1.17.0 Mojank
-            for (int entity : entities) {
-                sendPacket(PacketPlayOutEntityDestroyStorage.CONSTRUCTOR.newInstance(entity));
-            }
-        }
+    @NotNull
+    public String getDisplayName() {
+        return getPlayer().getDisplayName();
     }
 }

bukkit/src/main/java/me/neznamy/tab/platforms/bukkit/BukkitUtils.java

@@ -0,0 +1,76 @@
+package me.neznamy.tab.platforms.bukkit;
+
+import lombok.AccessLevel;
+import lombok.NoArgsConstructor;
+import lombok.SneakyThrows;
+import me.neznamy.tab.platforms.bukkit.nms.BukkitReflection;
+import me.neznamy.tab.shared.chat.EnumChatFormat;
+import me.neznamy.tab.shared.chat.IChatBaseComponent;
+import org.bukkit.Bukkit;
+import org.bukkit.entity.Player;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.Collection;
+
+/**
+ * Class containing static util methods used on Bukkit.
+ */
+@NoArgsConstructor(access = AccessLevel.PRIVATE)
+public class BukkitUtils {
+
+    /**
+     * Returns online players from Bukkit API. This requires reflection, as return type changed in 1.8,
+     * and we want to avoid errors.
+     *
+     * @return  Online players from Bukkit API.
+     */
+    @SuppressWarnings("unchecked")
+    @SneakyThrows
+    @NotNull
+    public static Player[] getOnlinePlayers() {
+        Object players = Bukkit.class.getMethod("getOnlinePlayers").invoke(null);
+        if (players instanceof Player[]) {
+            //1.7-
+            return (Player[]) players;
+        } else {
+            //1.8+
+            return ((Collection<Player>)players).toArray(new Player[0]);
+        }
+    }
+
+    /**
+     * Converts component to legacy string using bukkit RGB format if supported by both server and client.
+     * If not, closest legacy color is used instead.
+     *
+     * @param   component
+     *          Component to convert
+     * @param   rgbClient
+     *          Whether client accepts RGB colors or not.
+     * @return  Converted string using bukkit color format
+     */
+    @NotNull
+    public static String toBukkitFormat(@NotNull IChatBaseComponent component, boolean rgbClient) {
+        StringBuilder sb = new StringBuilder();
+        if (component.getModifier().getColor() != null) {
+            if (BukkitReflection.getMinorVersion() >= 16 && rgbClient) {
+                String hexCode = component.getModifier().getColor().getHexCode();
+                char c = EnumChatFormat.COLOR_CHAR;
+                sb.append(c).append("x").append(c).append(hexCode.charAt(0)).append(c).append(hexCode.charAt(1))
+                        .append(c).append(hexCode.charAt(2)).append(c).append(hexCode.charAt(3))
+                        .append(c).append(hexCode.charAt(4)).append(c).append(hexCode.charAt(5));
+            } else {
+                sb.append(component.getModifier().getColor().getLegacyColor().getFormat());
+            }
+        }
+        if (component.getModifier().isBold()) sb.append(EnumChatFormat.BOLD.getFormat());
+        if (component.getModifier().isStrikethrough()) sb.append(EnumChatFormat.STRIKETHROUGH.getFormat());
+        if (component.getModifier().isItalic()) sb.append(EnumChatFormat.ITALIC.getFormat());
+        if (component.getModifier().isObfuscated()) sb.append(EnumChatFormat.OBFUSCATED.getFormat());
+        if (component.getModifier().isUnderlined()) sb.append(EnumChatFormat.UNDERLINE.getFormat());
+        if (component.getText() != null) sb.append(component.getText());
+        for (IChatBaseComponent extra : component.getExtra()) {
+            sb.append(toBukkitFormat(extra, rgbClient));
+        }
+        return sb.toString();
+    }
+}

bukkit/src/main/java/me/neznamy/tab/platforms/bukkit/bossbar/BukkitBossBar.java

@@ -3,10 +3,10 @@ package me.neznamy.tab.platforms.bukkit.bossbar;
 import lombok.RequiredArgsConstructor;
 import me.neznamy.tab.api.bossbar.BarColor;
 import me.neznamy.tab.api.bossbar.BarStyle;
+import me.neznamy.tab.platforms.bukkit.BukkitUtils;
+import me.neznamy.tab.shared.chat.IChatBaseComponent;
 import me.neznamy.tab.shared.platform.bossbar.BossBar;
-import me.neznamy.tab.shared.chat.rgb.RGBUtils;
 import me.neznamy.tab.platforms.bukkit.BukkitTabPlayer;
-import me.neznamy.tab.shared.TAB;
 import org.bukkit.Bukkit;
 import org.jetbrains.annotations.NotNull;
 
@@ -22,17 +22,18 @@ import java.util.UUID;
 public class BukkitBossBar implements BossBar {
 
     /** Player this handler belongs to */
+    @NotNull
     private final BukkitTabPlayer player;
 
     /** Bukkit BossBars the player can currently see */
+    @NotNull
     private final Map<UUID, org.bukkit.boss.BossBar> bossBars = new HashMap<>();
 
     @Override
     public void create(@NotNull UUID id, @NotNull String title, float progress, @NotNull BarColor color, @NotNull BarStyle style) {
         if (bossBars.containsKey(id)) return;
         org.bukkit.boss.BossBar bar = Bukkit.createBossBar(
-                RGBUtils.getInstance().convertToBukkitFormat(title,
-                        player.getVersion().getMinorVersion() >= 16 && TAB.getInstance().getServerVersion().getMinorVersion() >= 16),
+                BukkitUtils.toBukkitFormat(IChatBaseComponent.optimizedComponent(title), player.getVersion().getMinorVersion() >= 16),
                 org.bukkit.boss.BarColor.valueOf(color.name()),
                 org.bukkit.boss.BarStyle.valueOf(style.getBukkitName()));
         bar.setProgress(progress);
@@ -42,8 +43,7 @@ public class BukkitBossBar implements BossBar {
 
     @Override
     public void update(@NotNull UUID id, @NotNull String title) {
-        bossBars.get(id).setTitle(RGBUtils.getInstance().convertToBukkitFormat(title,
-                player.getVersion().getMinorVersion() >= 16 && TAB.getInstance().getServerVersion().getMinorVersion() >= 16));
+        bossBars.get(id).setTitle(BukkitUtils.toBukkitFormat(IChatBaseComponent.optimizedComponent(title), player.getVersion().getMinorVersion() >= 16));
     }
 
     @Override

bukkit/src/main/java/me/neznamy/tab/platforms/bukkit/bossbar/EntityBossBar.java

@@ -5,7 +5,7 @@ import me.neznamy.tab.shared.platform.bossbar.BossBar;
 import me.neznamy.tab.api.bossbar.BarColor;
 import me.neznamy.tab.api.bossbar.BarStyle;
 import me.neznamy.tab.platforms.bukkit.BukkitTabPlayer;
-import me.neznamy.tab.platforms.bukkit.nms.datawatcher.DataWatcher;
+import me.neznamy.tab.platforms.bukkit.nms.DataWatcher;
 import me.neznamy.tab.shared.backend.Location;
 import org.bukkit.entity.EntityType;
 import org.jetbrains.annotations.NotNull;
@@ -21,6 +21,7 @@ import java.util.UUID;
 public class EntityBossBar implements BossBar {
 
     /** Player this handler belongs to */
+    @NotNull
     private final BukkitTabPlayer player;
 
     @Override
@@ -28,18 +29,18 @@ public class EntityBossBar implements BossBar {
         DataWatcher w = new DataWatcher();
         float health = 300*progress;
         if (health == 0) health = 1;
-        w.getHelper().setHealth(health);
-        w.getHelper().setCustomName(title, player.getVersion());
-        w.getHelper().setEntityFlags((byte) 32);
-        w.getHelper().setWitherInvulnerableTime(880); // Magic number
-        player.spawnEntity(id.hashCode(), new UUID(0, 0), EntityType.WITHER, new Location(0, 0, 0, 0, 0), w);
+        w.setHealth(health);
+        w.setCustomName(title, player.getVersion());
+        w.setEntityFlags((byte) 32);
+        w.setWitherInvulnerableTime(880); // Magic number
+        player.getEntityView().spawnEntity(id.hashCode(), new UUID(0, 0), EntityType.WITHER, new Location(0, 0, 0), w);
     }
 
     @Override
     public void update(@NotNull UUID id, @NotNull String title) {
         DataWatcher w = new DataWatcher();
-        w.getHelper().setCustomName(title, player.getVersion());
-        player.updateEntityMetadata(id.hashCode(), w);
+        w.setCustomName(title, player.getVersion());
+        player.getEntityView().updateEntityMetadata(id.hashCode(), w);
     }
 
     @Override
@@ -47,8 +48,8 @@ public class EntityBossBar implements BossBar {
         DataWatcher w = new DataWatcher();
         float health = 300*progress;
         if (health == 0) health = 1;
-        w.getHelper().setHealth(health);
-        player.updateEntityMetadata(id.hashCode(), w);
+        w.setHealth(health);
+        player.getEntityView().updateEntityMetadata(id.hashCode(), w);
     }
 
     @Override
@@ -59,6 +60,6 @@ public class EntityBossBar implements BossBar {
 
     @Override
     public void remove(@NotNull UUID id) {
-        player.destroyEntities(id.hashCode());
+        player.getEntityView().destroyEntities(id.hashCode());
     }
 }

bukkit/src/main/java/me/neznamy/tab/platforms/bukkit/bossbar/ViaBossBar.java

@@ -4,10 +4,10 @@ import com.viaversion.viaversion.api.Via;
 import com.viaversion.viaversion.api.legacy.bossbar.BossColor;
 import com.viaversion.viaversion.api.legacy.bossbar.BossStyle;
 import lombok.RequiredArgsConstructor;
+import me.neznamy.tab.shared.chat.IChatBaseComponent;
 import me.neznamy.tab.shared.platform.bossbar.BossBar;
 import me.neznamy.tab.api.bossbar.BarColor;
 import me.neznamy.tab.api.bossbar.BarStyle;
-import me.neznamy.tab.shared.chat.rgb.RGBUtils;
 import me.neznamy.tab.platforms.bukkit.BukkitTabPlayer;
 import org.jetbrains.annotations.NotNull;
 
@@ -22,16 +22,18 @@ import java.util.UUID;
 public class ViaBossBar implements BossBar {
 
     /** Player this handler belongs to */
+    @NotNull
     private final BukkitTabPlayer player;
 
     /** ViaVersion BossBars this 1.9+ player can see on 1.8 server */
+    @NotNull
     private final Map<UUID, com.viaversion.viaversion.api.legacy.bossbar.BossBar> viaBossBars = new HashMap<>();
 
     @Override
     public void create(@NotNull UUID id, @NotNull String title, float progress, @NotNull BarColor color, @NotNull BarStyle style) {
         if (viaBossBars.containsKey(id)) return;
         com.viaversion.viaversion.api.legacy.bossbar.BossBar bar = Via.getAPI().legacyAPI().createLegacyBossBar(
-                RGBUtils.getInstance().convertToBukkitFormat(title, player.getVersion().getMinorVersion() >= 16),
+                IChatBaseComponent.optimizedComponent(title).toString(player.getVersion()),
                 progress,
                 BossColor.valueOf(color.name()),
                 BossStyle.valueOf(style.getBukkitName()));
@@ -41,8 +43,7 @@ public class ViaBossBar implements BossBar {
 
     @Override
     public void update(@NotNull UUID id, @NotNull String title) {
-        viaBossBars.get(id).setTitle(RGBUtils.getInstance().convertToBukkitFormat(title,
-                player.getVersion().getMinorVersion() >= 16));
+        viaBossBars.get(id).setTitle(IChatBaseComponent.optimizedComponent(title).toString(player.getVersion()));
     }
 
     @Override

bukkit/src/main/java/me/neznamy/tab/platforms/bukkit/features/BukkitNameTagX.java

@@ -1,17 +1,12 @@
 package me.neznamy.tab.platforms.bukkit.features;
 
-import lombok.SneakyThrows;
+import me.neznamy.tab.platforms.bukkit.BukkitTabPlayer;
+import me.neznamy.tab.platforms.bukkit.nms.DataWatcher;
+import me.neznamy.tab.platforms.bukkit.platform.BukkitPlatform;
 import me.neznamy.tab.shared.TAB;
-import me.neznamy.tab.shared.TabConstants;
-import me.neznamy.tab.shared.platform.TabPlayer;
-import me.neznamy.tab.shared.features.types.PacketSendListener;
-import me.neznamy.tab.platforms.bukkit.nms.datawatcher.DataWatcher;
-import me.neznamy.tab.platforms.bukkit.nms.storage.nms.NMSStorage;
-import me.neznamy.tab.platforms.bukkit.nms.storage.packet.PacketPlayOutEntityDestroyStorage;
-import me.neznamy.tab.platforms.bukkit.nms.storage.packet.PacketPlayOutEntityTeleportStorage;
-import me.neznamy.tab.shared.backend.BackendTabPlayer;
 import me.neznamy.tab.shared.backend.EntityData;
 import me.neznamy.tab.shared.backend.features.unlimitedtags.BackendNameTagX;
+import me.neznamy.tab.shared.platform.TabPlayer;
 import org.bukkit.Bukkit;
 import org.bukkit.Location;
 import org.bukkit.entity.Entity;
@@ -35,10 +30,7 @@ import java.util.stream.Collectors;
 /**
  * The core class for unlimited NameTag mode on Bukkit
  */
-public class BukkitNameTagX extends BackendNameTagX implements Listener, PacketSendListener {
-
-    /** Reference to NMS storage for quick access */
-    private final NMSStorage nms = NMSStorage.getInstance();
+public class BukkitNameTagX extends BackendNameTagX implements Listener {
 
     public BukkitNameTagX(@NotNull JavaPlugin plugin) {
         Bukkit.getPluginManager().registerEvents(this, plugin);
@@ -46,45 +38,12 @@ public class BukkitNameTagX extends BackendNameTagX implements Listener, PacketS
 
     @EventHandler(priority = EventPriority.MONITOR, ignoreCancelled = true)
     public void onSneak(PlayerToggleSneakEvent e) {
-        TabPlayer p = TAB.getInstance().getPlayer(e.getPlayer().getUniqueId());
-        if (p == null || isPlayerDisabled(p)) return;
-        TAB.getInstance().getCPUManager().runMeasuredTask(featureName, TabConstants.CpuUsageCategory.PLAYER_SNEAK,
-                () -> getArmorStandManager(p).sneak(e.isSneaking()));
+        sneak(e.getPlayer().getUniqueId(), e.isSneaking());
     }
 
-    @EventHandler
+    @EventHandler(priority = EventPriority.MONITOR, ignoreCancelled = true)
     public void onRespawn(PlayerRespawnEvent e) {
-        TabPlayer respawned = TAB.getInstance().getPlayer(e.getPlayer().getUniqueId());
-        if (respawned == null || isPlayerDisabled(respawned)) return;
-        TAB.getInstance().getCPUManager().runMeasuredTask(featureName, TabConstants.CpuUsageCategory.PLAYER_RESPAWN,
-                () -> getArmorStandManager(respawned).teleport());
-    }
-
-    @SuppressWarnings("unchecked")
-    @Override
-    @SneakyThrows
-    public void onPacketSend(@NotNull TabPlayer receiver, @NotNull Object packet) {
-        if (receiver.getVersion().getMinorVersion() < 8) return;
-        if (!receiver.isLoaded() || getDisableChecker().isDisabledPlayer(receiver) || getUnlimitedDisableChecker().isDisabledPlayer(receiver)) return;
-        if (nms.PacketPlayOutEntity.isInstance(packet) && !nms.PacketPlayOutEntityLook.isInstance(packet)) { //ignoring head rotation only packets
-            packetListener.onEntityMove((BackendTabPlayer) receiver, nms.PacketPlayOutEntity_ENTITYID.getInt(packet));
-        } else if (PacketPlayOutEntityTeleportStorage.CLASS.isInstance(packet)) {
-            packetListener.onEntityMove((BackendTabPlayer) receiver, PacketPlayOutEntityTeleportStorage.ENTITY_ID.getInt(packet));
-        } else if (nms.PacketPlayOutNamedEntitySpawn.isInstance(packet)) {
-            packetListener.onEntitySpawn((BackendTabPlayer) receiver, nms.PacketPlayOutNamedEntitySpawn_ENTITYID.getInt(packet));
-        } else if (PacketPlayOutEntityDestroyStorage.CLASS.isInstance(packet)) {
-            if (nms.getMinorVersion() >= 17) {
-                Object entities = PacketPlayOutEntityDestroyStorage.ENTITIES.get(packet);
-                if (entities instanceof List) {
-                    packetListener.onEntityDestroy((BackendTabPlayer) receiver, (List<Integer>) entities);
-                } else {
-                    //1.17.0
-                    packetListener.onEntityDestroy((BackendTabPlayer) receiver, (int) entities);
-                }
-            } else {
-                packetListener.onEntityDestroy((BackendTabPlayer) receiver, (int[]) PacketPlayOutEntityDestroyStorage.ENTITIES.get(packet));
-            }
-        }
+        respawn(e.getPlayer().getUniqueId());
     }
 
     @Override
@@ -111,7 +70,8 @@ public class BukkitNameTagX extends BackendNameTagX implements Listener, PacketS
 
     @SuppressWarnings("deprecation")
     @Override
-    public @NotNull List<Integer> getPassengers(@NotNull Object entity) {
+    @NotNull
+    public List<Integer> getPassengers(@NotNull Object entity) {
         Entity vehicle = (Entity) entity;
         if (TAB.getInstance().getServerVersion().getMinorVersion() >= 11) {
             return vehicle.getPassengers().stream().map(Entity::getEntityId).collect(Collectors.toList());
@@ -125,7 +85,8 @@ public class BukkitNameTagX extends BackendNameTagX implements Listener, PacketS
     }
 
     @Override
-    public @Nullable Object getVehicle(@NotNull TabPlayer player) {
+    @Nullable
+    public Object getVehicle(@NotNull TabPlayer player) {
         return ((Player)player.getPlayer()).getVehicle();
     }
 
@@ -135,7 +96,8 @@ public class BukkitNameTagX extends BackendNameTagX implements Listener, PacketS
     }
 
     @Override
-    public @NotNull String getEntityType(@NotNull Object entity) {
+    @NotNull
+    public String getEntityType(@NotNull Object entity) {
         return ((Entity) entity).getType().toString().toLowerCase();
     }
 
@@ -162,7 +124,8 @@ public class BukkitNameTagX extends BackendNameTagX implements Listener, PacketS
     }
 
     @Override
-    public @NotNull Object getArmorStandType() {
+    @NotNull
+    public Object getArmorStandType() {
         return EntityType.ARMOR_STAND;
     }
 
@@ -182,12 +145,23 @@ public class BukkitNameTagX extends BackendNameTagX implements Listener, PacketS
     }
 
     @Override
+    @NotNull
     public EntityData createDataWatcher(@NotNull TabPlayer viewer, byte flags, @NotNull String displayName, boolean nameVisible) {
         DataWatcher datawatcher = new DataWatcher();
-        datawatcher.getHelper().setEntityFlags(flags);
-        datawatcher.getHelper().setCustomName(displayName, viewer.getVersion());
-        datawatcher.getHelper().setCustomNameVisible(nameVisible);
-        datawatcher.getHelper().setArmorStandFlags((byte)16);
+        datawatcher.setEntityFlags(flags);
+        datawatcher.setCustomName(displayName, viewer.getVersion());
+        datawatcher.setCustomNameVisible(nameVisible);
+        datawatcher.setArmorStandFlags((byte)16);
         return datawatcher;
     }
+
+    @Override
+    public void runInEntityScheduler(@NotNull Object entity, @NotNull Runnable task) {
+        ((BukkitPlatform)TAB.getInstance().getPlatform()).runEntityTask((Entity) entity, task);
+    }
+
+    @Override
+    public boolean isDead(@NotNull TabPlayer player) {
+        return ((BukkitTabPlayer)player).getPlayer().isDead();
+    }
 }

bukkit/src/main/java/me/neznamy/tab/platforms/bukkit/features/BukkitTabExpansion.java

@@ -11,7 +11,9 @@ import org.bukkit.entity.Player;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
+import java.util.Arrays;
 import java.util.HashMap;
+import java.util.List;
 import java.util.Map;
 import java.util.WeakHashMap;
 
@@ -22,11 +24,36 @@ import java.util.WeakHashMap;
 public class BukkitTabExpansion extends PlaceholderExpansion implements TabExpansion {
 
     /** Map holding all values for all players for easy and high-performance access */
-    private final WeakHashMap<Player, Map<String, String>> values = new WeakHashMap<>();
+    @NotNull
+    private final WeakHashMap<TabPlayer, Map<String, String>> values = new WeakHashMap<>();
 
-    private final String author = TabConstants.PLUGIN_AUTHOR;
-    private final String identifier = TabConstants.PLUGIN_ID;
-    private final String version = TabConstants.PLUGIN_VERSION;
+    /** List of all placeholders offered by the plugin for command suggestions */
+    @NotNull
+    private final List<String> placeholders = Arrays.asList(
+            "%tab_tabprefix%",
+            "%tab_tabsuffix%",
+            "%tab_tagprefix%",
+            "%tab_tagsuffix%",
+            "%tab_customtabname%",
+            "%tab_customtagname%",
+            "%tab_belowname%",
+            "%tab_abovename%",
+            "%tab_tabprefix_raw%",
+            "%tab_tabsuffix_raw%",
+            "%tab_tagprefix_raw%",
+            "%tab_tagsuffix_raw%",
+            "%tab_customtabname_raw%",
+            "%tab_customtagname_raw%",
+            "%tab_belowname_raw%",
+            "%tab_abovename_raw%",
+            "%tab_scoreboard_name%",
+            "%tab_scoreboard_visible%",
+            "%tab_bossbar_visible%",
+            "%tab_nametag_preview%",
+            "%tab_nametag_visibility%",
+            "%tab_replace_<placeholder>%",
+            "%tab_placeholder_<placeholder>%"
+    );
 
     @Override
     public boolean persist() {
@@ -34,6 +61,31 @@ public class BukkitTabExpansion extends PlaceholderExpansion implements TabExpan
     }
 
     @Override
+    @NotNull
+    public String getAuthor() {
+        return TabConstants.PLUGIN_AUTHOR;
+    }
+
+    @Override
+    @NotNull
+    public String getIdentifier() {
+        return TabConstants.PLUGIN_ID;
+    }
+
+    @Override
+    @NotNull
+    public String getVersion() {
+        return TabConstants.PLUGIN_VERSION;
+    }
+
+    @Override
+    @NotNull
+    public List<String> getPlaceholders() {
+        return placeholders;
+    }
+
+    @Override
+    @Nullable
     public String onPlaceholderRequest(@Nullable Player player, @NotNull String identifier) {
         if (identifier.startsWith("replace_")) {
             String text = "%" + identifier.substring(8) + "%";
@@ -50,11 +102,14 @@ public class BukkitTabExpansion extends PlaceholderExpansion implements TabExpan
         if (identifier.startsWith("placeholder_")) {
             TAB.getInstance().getPlaceholderManager().addUsedPlaceholder("%" + identifier.substring(12) + "%", TAB.getInstance().getPlaceholderManager());
         }
-        return values.get(player).get(identifier);
+        if (player == null) return "<Player cannot be null>";
+        TabPlayer p = TAB.getInstance().getPlayer(player.getUniqueId());
+        if (p == null || !p.isLoaded()) return "<Player is not loaded>";
+        return values.get(p).get(identifier);
     }
 
     @Override
     public void setValue(@NotNull TabPlayer player, @NotNull String key, @NotNull String value) {
-        values.computeIfAbsent((Player) player.getPlayer(), p -> new HashMap<>()).put(key, value);
+        values.computeIfAbsent(player, p -> new HashMap<>()).put(key, value);
     }
 }

bukkit/src/main/java/me/neznamy/tab/platforms/bukkit/features/PerWorldPlayerList.java

@@ -5,8 +5,7 @@ import java.util.List;
 import java.util.Map;
 import java.util.Map.Entry;
 
-import lombok.Getter;
-import lombok.RequiredArgsConstructor;
+import me.neznamy.tab.platforms.bukkit.BukkitUtils;
 import me.neznamy.tab.shared.features.types.Loadable;
 import me.neznamy.tab.shared.features.types.UnLoadable;
 import org.bukkit.Bukkit;
@@ -27,7 +26,6 @@ import org.jetbrains.annotations.NotNull;
  * Per-world-PlayerList feature handler
  */
 @SuppressWarnings("deprecation")
-@RequiredArgsConstructor
 public class PerWorldPlayerList extends TabFeature implements Listener, Loadable, UnLoadable {
 
     /** Config options */
@@ -35,21 +33,27 @@ public class PerWorldPlayerList extends TabFeature implements Listener, Loadable
     private final List<String> ignoredWorlds = TAB.getInstance().getConfig().getStringList("per-world-playerlist.ignore-effect-in-worlds", Arrays.asList("ignored_world", "build"));
     private final Map<String, List<String>> sharedWorlds = TAB.getInstance().getConfig().getConfigurationSection("per-world-playerlist.shared-playerlist-world-groups");
 
-    /** Plugin reference*/
-    @NotNull private final JavaPlugin plugin;
-
-    @Getter private final String featureName = "Per world PlayerList";
-
-    @Override
-    public void load() {
-        Bukkit.getOnlinePlayers().forEach(this::checkPlayer);
+    /**
+     * Constructs new instance and registers events
+     *
+     * @param   plugin
+     *          Plugin instance to register events
+     */
+    public PerWorldPlayerList(JavaPlugin plugin) {
         Bukkit.getPluginManager().registerEvents(this, plugin);
     }
 
+    @Override
+    public void load() {
+        for (Player p : BukkitUtils.getOnlinePlayers()) {
+            checkPlayer(p);
+        }
+    }
+
     @Override
     public void unload() {
-        for (Player p : Bukkit.getOnlinePlayers()) {
-            for (Player pl : Bukkit.getOnlinePlayers()) {
+        for (Player p : BukkitUtils.getOnlinePlayers()) {
+            for (Player pl : BukkitUtils.getOnlinePlayers()) {
                 p.showPlayer(pl);
             }
         }
@@ -60,14 +64,14 @@ public class PerWorldPlayerList extends TabFeature implements Listener, Loadable
     public void onJoin(PlayerJoinEvent e) {
         long time = System.nanoTime();
         checkPlayer(e.getPlayer());
-        TAB.getInstance().getCPUManager().addTime(featureName, TabConstants.CpuUsageCategory.PLAYER_JOIN, System.nanoTime()-time);
+        TAB.getInstance().getCPUManager().addTime(this, TabConstants.CpuUsageCategory.PLAYER_JOIN, System.nanoTime()-time);
     }
 
     @EventHandler
     public void onWorldChange(PlayerChangedWorldEvent e) {
         long time = System.nanoTime();
         checkPlayer(e.getPlayer());
-        TAB.getInstance().getCPUManager().addTime(featureName, TabConstants.CpuUsageCategory.WORLD_SWITCH, System.nanoTime()-time);
+        TAB.getInstance().getCPUManager().addTime(this, TabConstants.CpuUsageCategory.WORLD_SWITCH, System.nanoTime()-time);
     }
 
     /**
@@ -79,7 +83,7 @@ public class PerWorldPlayerList extends TabFeature implements Listener, Loadable
      *          Player to update
      */
     private void checkPlayer(@NotNull Player p) {
-        for (Player all : Bukkit.getOnlinePlayers()) {
+        for (Player all : BukkitUtils.getOnlinePlayers()) {
             if (all == p) continue;
             if (!shouldSee(p, all) && p.canSee(all)) p.hidePlayer(all);
             if (shouldSee(p, all) && !p.canSee(all)) p.showPlayer(all);
@@ -109,4 +113,10 @@ public class PerWorldPlayerList extends TabFeature implements Listener, Loadable
         }
         return viewerWorldGroup.equals(targetWorldGroup);
     }
+
+    @Override
+    @NotNull
+    public String getFeatureName() {
+        return "Per world PlayerList";
+    }
 }

bukkit/src/main/java/me/neznamy/tab/platforms/bukkit/features/WitherBossBar.java

@@ -1,6 +1,7 @@
 package me.neznamy.tab.platforms.bukkit.features;
 
 import lombok.RequiredArgsConstructor;
+import me.neznamy.tab.platforms.bukkit.BukkitTabPlayer;
 import me.neznamy.tab.shared.TabConstants;
 import me.neznamy.tab.shared.platform.TabPlayer;
 import me.neznamy.tab.api.bossbar.BossBar;
@@ -10,7 +11,6 @@ import me.neznamy.tab.shared.backend.BackendTabPlayer;
 import me.neznamy.tab.shared.features.bossbar.BossBarManagerImpl;
 import org.bukkit.Bukkit;
 import org.bukkit.Location;
-import org.bukkit.entity.Player;
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.HandlerList;
 import org.bukkit.event.Listener;
@@ -24,15 +24,18 @@ import org.jetbrains.annotations.NotNull;
 @RequiredArgsConstructor
 public class WitherBossBar extends BossBarManagerImpl implements Listener, WorldSwitchListener {
 
-    /** Distance of the Wither in blocks */
-    private static final int WITHER_DISTANCE = 60;
-
-    /** Reference to plugin for registering listener */
-    private final @NotNull JavaPlugin plugin;
+    /**
+     * Constructs new instance and registers events
+     *
+     * @param   plugin
+     *          Plugin instance to register events
+     */
+    public WitherBossBar(JavaPlugin plugin) {
+        Bukkit.getPluginManager().registerEvents(this, plugin);
+    }
 
     @Override
     public void load() {
-        Bukkit.getPluginManager().registerEvents(this, plugin);
         //when MC is on fullscreen, BossBar disappears after 1 second of not being seen
         //when in a small window, it's about 100ms
         TAB.getInstance().getCPUManager().startRepeatingMeasuredTask(100,
@@ -49,9 +52,10 @@ public class WitherBossBar extends BossBarManagerImpl implements Listener, World
             if (p.getVersion().getMinorVersion() > 8) continue; //sending VV packets to those
             for (BossBar line : getRegisteredBossBars().values()) {
                 if (!line.getPlayers().contains(p)) continue;
-                Location loc = ((Player) p.getPlayer()).getEyeLocation().add(((Player) p.getPlayer()).getEyeLocation().getDirection().normalize().multiply(WITHER_DISTANCE));
+                Location eyeLocation = ((BukkitTabPlayer)p).getPlayer().getEyeLocation();
+                Location loc = eyeLocation.add(eyeLocation.getDirection().normalize().multiply(60)); // Wither distance
                 if (loc.getY() < 1) loc.setY(1);
-                ((BackendTabPlayer)p).teleportEntity(line.getUniqueId().hashCode(), new me.neznamy.tab.shared.backend.Location(loc.getX(), loc.getY(), loc.getZ(), 0, 0));
+                ((BackendTabPlayer)p).getEntityView().teleportEntity(line.getUniqueId().hashCode(), new me.neznamy.tab.shared.backend.Location(loc.getX(), loc.getY(), loc.getZ()));
             }
         }
     }

bukkit/src/main/java/me/neznamy/tab/platforms/bukkit/hook/LibsDisguisesHook.java

@@ -0,0 +1,33 @@
+package me.neznamy.tab.platforms.bukkit.hook;
+
+import me.libraryaddict.disguise.DisguiseAPI;
+import me.neznamy.tab.platforms.bukkit.BukkitTabPlayer;
+import me.neznamy.tab.shared.platform.TabPlayer;
+import me.neznamy.tab.shared.util.ReflectionUtils;
+
+/**
+ * Class for hooking into LibsDisguises to get disguise status of players.
+ */
+public class LibsDisguisesHook {
+
+    /** Flag tracking if LibsDisguises is installed or not */
+    private static boolean installed = ReflectionUtils.classExists("me.libraryaddict.disguise.DisguiseAPI");
+
+    /**
+     * Returns {@code true} if LibsDisguises is installed and player is disguised,
+     * {@code false} otherwise.
+     *
+     * @param   player
+     *          Player to check
+     * @return  {@code true} if disguised, {@code false} otherwise
+     */
+    public static boolean isDisguised(TabPlayer player) {
+        try {
+            return installed && DisguiseAPI.isDisguised(((BukkitTabPlayer)player).getPlayer());
+        } catch (LinkageError e) {
+            //java.lang.NoClassDefFoundError: Could not initialize class me.libraryaddict.disguise.DisguiseAPI
+            installed = false;
+            return false;
+        }
+    }
+}

bukkit/src/main/java/me/neznamy/tab/platforms/bukkit/nms/BukkitReflection.java

@@ -0,0 +1,83 @@
+package me.neznamy.tab.platforms.bukkit.nms;
+
+import lombok.Getter;
+import me.neznamy.tab.shared.util.ReflectionUtils;
+import org.bukkit.Bukkit;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.Arrays;
+
+public class BukkitReflection {
+
+    /** Server's NMS/CraftBukkit package */
+    @Getter
+    private static final String serverPackage = Bukkit.getServer().getClass().getPackage().getName().split("\\.")[3];
+
+    /** Server's minor version */
+    @Getter
+    private static final int minorVersion = Integer.parseInt(serverPackage.split("_")[1]);
+
+    /** Flag determining whether this server jar is mojang mapped or not */
+    @Getter
+    private static final boolean mojangMapped = checkMojangMapped();
+
+    /** Flag determining whether the server version is at least 1.19.3 or not */
+    @Getter
+    private static final boolean is1_19_3Plus = ReflectionUtils.classExists("net.minecraft.network.protocol.game.ClientboundPlayerInfoUpdatePacket");
+
+    /** Flag determining whether the server version is at least 1.19.4 or not */
+    @Getter
+    private static final boolean is1_19_4Plus = is1_19_3Plus && !serverPackage.equals("v1_19_R2");
+
+    /** Flag determining whether the server version is at least 1.20.2 or not */
+    @Getter
+    private static final boolean is1_20_2Plus = minorVersion >= 20 && !serverPackage.equals("v1_20_R1");
+
+    private static boolean checkMojangMapped() {
+        try {
+            Class.forName("net.minecraft.network.syncher.SynchedEntityData").getMethod("define",
+                    Class.forName("net.minecraft.network.syncher.EntityDataAccessor"), Object.class);
+            return true;
+        } catch (ReflectiveOperationException | NullPointerException ex) {
+            return false;
+        }
+    }
+
+    /**
+     * Returns class with given potential names in same order
+     *
+     * @param   names
+     *          possible class names
+     * @return  class for specified names
+     * @throws  ClassNotFoundException
+     *          if class does not exist
+     */
+    public static Class<?> getLegacyClass(@NotNull String... names) throws ClassNotFoundException {
+        for (String name : names) {
+            try {
+                return getLegacyClass(name);
+            } catch (ClassNotFoundException e) {
+                //not the first class name in array
+            }
+        }
+        throw new ClassNotFoundException("No class found with possible names " + Arrays.toString(names));
+    }
+
+    /**
+     * Returns class from given name. Supports modded servers, such as Thermos.
+     *
+     * @param   name
+     *          class name
+     * @return  class from given name
+     * @throws  ClassNotFoundException
+     *          if class was not found
+     */
+    public static Class<?> getLegacyClass(@NotNull String name) throws ClassNotFoundException {
+        try {
+            return BukkitReflection.class.getClassLoader().loadClass("net.minecraft.server." + serverPackage + "." + name);
+        } catch (NullPointerException e) {
+            // nested class not found
+            throw new ClassNotFoundException(name);
+        }
+    }
+}

bukkit/src/main/java/me/neznamy/tab/platforms/bukkit/nms/DataWatcher.java

@@ -0,0 +1,288 @@
+package me.neznamy.tab.platforms.bukkit.nms;
+
+import lombok.*;
+import me.neznamy.tab.shared.ProtocolVersion;
+import me.neznamy.tab.shared.TAB;
+import me.neznamy.tab.shared.backend.EntityData;
+import me.neznamy.tab.shared.chat.IChatBaseComponent;
+import me.neznamy.tab.shared.util.ReflectionUtils;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+import java.lang.reflect.Constructor;
+import java.lang.reflect.Method;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Optional;
+
+/**
+ * A class representing the n.m.s.DataWatcher class to make work with it much easier
+ */
+@ToString
+public class DataWatcher implements EntityData {
+
+    /** NMS Fields */
+    public static Class<?> DataWatcher;
+    private static Constructor<?> newDataWatcher;
+    private static Method DataWatcher_register;
+    private static Method DataWatcher_markDirty;
+    public static Method DataWatcher_packDirty;
+
+    private static Class<?> DataWatcherObject;
+    private static Constructor<?> newDataWatcherObject;
+
+    private static Class<?> DataWatcherRegistry;
+    private static Class<?> DataWatcherSerializer;
+    private static Object DataWatcherSerializer_BYTE;
+    private static Object DataWatcherSerializer_FLOAT;
+    private static Object DataWatcherSerializer_STRING;
+    private static Object DataWatcherSerializer_OPTIONAL_COMPONENT;
+    private static Object DataWatcherSerializer_BOOLEAN;
+
+    private static final int armorStandFlagsPosition = getArmorStandFlagsPosition();
+    
+    /** Watched data */
+    private final Map<Integer, Item> dataValues = new HashMap<>();
+
+    /**
+     * Returns armor stand flags position based on server version
+     *
+     * @return  armor stand flags position based on server version
+     */
+    private static int getArmorStandFlagsPosition() {
+        if (BukkitReflection.getMinorVersion() >= 17) {
+            //1.17.x, 1.18.x, 1.19.x, 1.20.x
+            return 15;
+        } else if (BukkitReflection.getMinorVersion() >= 15) {
+            //1.15.x, 1.16.x
+            return 14;
+        } else if (BukkitReflection.getMinorVersion() >= 14) {
+            //1.14.x
+            return 13;
+        } else if (BukkitReflection.getMinorVersion() >= 10) {
+            //1.10.x - 1.13.x
+            return 11;
+        } else {
+            //1.8.x - 1.9.x
+            return 10;
+        }
+    }
+    
+    /**
+     * Loads all required Fields and throws Exception if something went wrong
+     */
+    public static void load() throws ReflectiveOperationException {
+        int minorVersion = BukkitReflection.getMinorVersion();
+        if (BukkitReflection.isMojangMapped()) {
+            DataWatcher = Class.forName("net.minecraft.network.syncher.SynchedEntityData");
+            DataWatcherObject = Class.forName("net.minecraft.network.syncher.EntityDataAccessor");
+            DataWatcherRegistry = Class.forName("net.minecraft.network.syncher.EntityDataSerializers");
+            DataWatcherSerializer = Class.forName("net.minecraft.network.syncher.EntityDataSerializer");
+        } else if (minorVersion >= 17) {
+            DataWatcher = Class.forName("net.minecraft.network.syncher.DataWatcher");
+            DataWatcherObject = Class.forName("net.minecraft.network.syncher.DataWatcherObject");
+            DataWatcherRegistry = Class.forName("net.minecraft.network.syncher.DataWatcherRegistry");
+            DataWatcherSerializer = Class.forName("net.minecraft.network.syncher.DataWatcherSerializer");
+        } else {
+            DataWatcher = BukkitReflection.getLegacyClass("DataWatcher");
+            if (minorVersion >= 9) {
+                DataWatcherObject = BukkitReflection.getLegacyClass("DataWatcherObject");
+                DataWatcherRegistry = BukkitReflection.getLegacyClass("DataWatcherRegistry");
+                DataWatcherSerializer = BukkitReflection.getLegacyClass("DataWatcherSerializer");
+            }
+        }
+        newDataWatcher = ReflectionUtils.getOnlyConstructor(DataWatcher);
+        if (BukkitReflection.isMojangMapped()) {
+            DataWatcher_register = DataWatcher.getMethod("define", DataWatcherObject, Object.class);
+        } else if (minorVersion >= 9) {
+            DataWatcher_register = ReflectionUtils.getMethod(DataWatcher, new String[]{"register", "a", "m_135372_"}, DataWatcherObject, Object.class); // {Bukkit, Bukkit 1.18+, Mohist 1.18.2}
+        } else {
+            DataWatcher_register = ReflectionUtils.getMethod(DataWatcher, new String[]{"func_75682_a", "a"}, int.class, Object.class); // {Thermos 1.7.10, Bukkit}
+        }
+        if (minorVersion >= 19) {
+            if (BukkitReflection.isMojangMapped()) {
+                DataWatcher_packDirty = DataWatcher.getMethod("packDirty");
+            } else {
+                DataWatcher_packDirty = DataWatcher.getMethod("b");
+            }
+        }
+        if (BukkitReflection.is1_19_3Plus()) {
+            DataWatcher_markDirty = ReflectionUtils.getOnlyMethod(DataWatcher, void.class, DataWatcherObject);
+        }
+        if (minorVersion >= 9) {
+            newDataWatcherObject = DataWatcherObject.getConstructor(int.class, DataWatcherSerializer);
+            DataWatcherSerializer_BYTE = ReflectionUtils.getField(DataWatcherRegistry, "BYTE", "a", "f_135027_").get(null); // Mohist 1.18.2
+            DataWatcherSerializer_FLOAT = ReflectionUtils.getField(DataWatcherRegistry, "FLOAT", "c", "f_135029_").get(null); // Mohist 1.18.2
+            DataWatcherSerializer_STRING = ReflectionUtils.getField(DataWatcherRegistry, "STRING", "d", "f_135030_").get(null); // Mohist 1.18.2
+            if (BukkitReflection.isMojangMapped()) {
+                DataWatcherSerializer_OPTIONAL_COMPONENT = DataWatcherRegistry.getDeclaredField("OPTIONAL_COMPONENT").get(null);
+                DataWatcherSerializer_BOOLEAN = DataWatcherRegistry.getDeclaredField("BOOLEAN").get(null);
+            } else {
+                if (BukkitReflection.is1_19_3Plus()) {
+                    DataWatcherSerializer_OPTIONAL_COMPONENT = DataWatcherRegistry.getDeclaredField("g").get(null);
+                    if (BukkitReflection.is1_19_4Plus()) {
+                        DataWatcherSerializer_BOOLEAN = DataWatcherRegistry.getDeclaredField("k").get(null);
+                    } else {
+                        DataWatcherSerializer_BOOLEAN = DataWatcherRegistry.getDeclaredField("j").get(null);
+                    }
+                } else {
+                    if (minorVersion >= 13) {
+                        DataWatcherSerializer_OPTIONAL_COMPONENT = ReflectionUtils.getField(DataWatcherRegistry, "f", "f_135032_").get(null); // Mohist 1.18.2
+                        DataWatcherSerializer_BOOLEAN = ReflectionUtils.getField(DataWatcherRegistry, "i", "f_135035_").get(null); // Mohist 1.18.2
+                    } else {
+                        DataWatcherSerializer_BOOLEAN = DataWatcherRegistry.getDeclaredField("h").get(null);
+                    }
+                }
+            }
+        }
+    }
+    
+    /**
+     * Sets value into data values
+     *
+     * @param   position
+     *          data position
+     * @param   serializer
+     *          Object serializer (1.9+)
+     * @param   value
+     *          value
+     */
+    public void setValue(int position, @Nullable Object serializer, @NotNull Object value) {
+        dataValues.put(position, new Item(position, serializer, value));
+    }
+
+    /**
+     * Writes entity byte flags
+     *
+     * @param   flags
+     *          flags to write
+     */
+    public void setEntityFlags(byte flags) {
+        setValue(0, DataWatcherSerializer_BYTE, flags);
+    }
+
+    /**
+     * Writes entity custom name with position based on server version and value depending on client version (RGB or not)
+     *
+     * @param   customName
+     *          target custom name
+     * @param   clientVersion
+     *          client version
+     */
+    public void setCustomName(@NotNull String customName, @NotNull ProtocolVersion clientVersion) {
+        if (BukkitReflection.getMinorVersion() >= 13) {
+            setValue(2, DataWatcherSerializer_OPTIONAL_COMPONENT,
+                    Optional.of(TAB.getInstance().getPlatform().toComponent(IChatBaseComponent.optimizedComponent(customName), clientVersion)));
+        } else if (BukkitReflection.getMinorVersion() >= 8) {
+            setValue(2, DataWatcherSerializer_STRING, customName);
+        } else {
+            //name length is limited to 64 characters on <1.8
+            String cutName = (customName.length() > 64 ? customName.substring(0, 64) : customName);
+            if (BukkitReflection.getMinorVersion() >= 6) {
+                setValue(10, null, cutName);
+            } else {
+                setValue(5, null, cutName);
+            }
+        }
+    }
+
+    /**
+     * Writes custom name visibility boolean
+     *
+     * @param   visible
+     *          if visible or not
+     */
+    public void setCustomNameVisible(boolean visible) {
+        if (BukkitReflection.getMinorVersion() >= 9) {
+            setValue(3, DataWatcherSerializer_BOOLEAN, visible);
+        } else {
+            setValue(3, null, (byte)(visible?1:0));
+        }
+    }
+
+    /**
+     * Writes entity health
+     *
+     * @param   health
+     *          health of entity
+     */
+    public void setHealth(float health) {
+        if (BukkitReflection.getMinorVersion() >= 6) {
+            setValue(6, DataWatcherSerializer_FLOAT, health);
+        } else {
+            setValue(16, null, (int)health);
+        }
+    }
+
+    /**
+     * Writes armor stand flags
+     *
+     * @param   flags
+     *          flags to write
+     */
+    public void setArmorStandFlags(byte flags) {
+        setValue(armorStandFlagsPosition, DataWatcherSerializer_BYTE, flags);
+    }
+
+    /**
+     * Writes wither invulnerable time
+     * @param   time
+     *          Time, apparently
+     */
+    public void setWitherInvulnerableTime(int time) {
+        if (BukkitReflection.getMinorVersion() > 8)
+            throw new UnsupportedOperationException("Not supported on 1.9+");
+        setValue(20, null, time);
+    }
+
+    /**
+     * Converts the class into an instance of NMS.DataWatcher
+     *
+     * @return  an instance of NMS.DataWatcher with same data
+     */
+    @SneakyThrows
+    public @NotNull Object build() {
+        Object nmsWatcher;
+        if (newDataWatcher.getParameterCount() == 1) { //1.7+
+            nmsWatcher = newDataWatcher.newInstance(new Object[] {null});
+        } else {
+            nmsWatcher = newDataWatcher.newInstance();
+        }
+        for (Item item : dataValues.values()) {
+            Object nmsObject = item.createObject();
+            DataWatcher_register.invoke(nmsWatcher, nmsObject, item.getValue());
+            if (BukkitReflection.is1_19_3Plus()) DataWatcher_markDirty.invoke(nmsWatcher, nmsObject);
+        }
+        return nmsWatcher;
+    }
+
+    @RequiredArgsConstructor
+    @Getter
+    public static class Item {
+
+        /** Item position */
+        private final int position;
+
+        /** Item serializer (1.9+) */
+        @Nullable
+        private final Object serializer;
+
+        /** Item value */
+        @NotNull
+        private final Object value;
+
+        /**
+         * Creates data watcher object with position and serializer
+         *
+         * @return  NMS data watcher object
+         */
+        @SneakyThrows
+        public Object createObject() {
+            if (BukkitReflection.getMinorVersion() >= 9) {
+                return newDataWatcherObject.newInstance(position, serializer);
+            } else {
+                return position;
+            }
+        }
+    }
+}

bukkit/src/main/java/me/neznamy/tab/platforms/bukkit/nms/NMSStorage.java

@@ -0,0 +1,120 @@
+package me.neznamy.tab.platforms.bukkit.nms;
+
+import com.mojang.authlib.GameProfile;
+import io.netty.channel.Channel;
+import lombok.Getter;
+import lombok.Setter;
+import lombok.SneakyThrows;
+import me.neznamy.tab.platforms.bukkit.BukkitTabList;
+import me.neznamy.tab.platforms.bukkit.scoreboard.PacketScoreboard;
+import me.neznamy.tab.shared.ProtocolVersion;
+import me.neznamy.tab.shared.chat.IChatBaseComponent;
+import me.neznamy.tab.shared.util.ComponentCache;
+import me.neznamy.tab.shared.util.ReflectionUtils;
+import org.bukkit.Bukkit;
+
+import java.lang.reflect.Field;
+import java.lang.reflect.Method;
+
+/**
+ * Class holding all NMS classes, methods, fields and constructors used by TAB.
+ */
+public class NMSStorage {
+
+    /** Instance of this class */
+    @Getter @Setter private static NMSStorage instance;
+
+    /** Server's NMS/CraftBukkit package */
+    private final String serverPackage = Bukkit.getServer().getClass().getPackage().getName().split("\\.")[3];
+
+    /** Server's minor version */
+    @Getter private final int minorVersion = Integer.parseInt(serverPackage.split("_")[1]);
+
+    /** Basic universal values */
+    protected Class<?> Packet;
+    protected Class<?> NetworkManager;
+    public Class<?> EntityPlayer;
+    protected Class<?> EntityHuman;
+    protected Class<?> PlayerConnection;
+
+    // Ping field for 1.5.2 - 1.16.5, 1.17+ has Player#getPing()
+    public Field PING;
+
+    public Field PLAYER_CONNECTION;
+    public Field NETWORK_MANAGER;
+    public Field CHANNEL;
+    public Method getHandle;
+    public Method sendPacket;
+    public Method getProfile;
+
+    /** Chat components */
+    protected Class<?> ChatSerializer;
+    public Method ChatSerializer_DESERIALIZE;
+
+    public final ComponentCache<IChatBaseComponent, Object> componentCache = new ComponentCache<>(1000,
+            (component, clientVersion) -> ChatSerializer_DESERIALIZE.invoke(null, component.toString(clientVersion)));
+
+    /**
+     * Constructs new instance and attempts to load all fields, methods and constructors.
+     */
+    @SneakyThrows
+    public NMSStorage() {
+        ProtocolVersion.UNKNOWN_SERVER_VERSION.setMinorVersion(minorVersion); //fixing compatibility with forks that set version field value to "Unknown"
+        loadClasses();
+        if (minorVersion >= 7) {
+            if (BukkitReflection.is1_20_2Plus()) {
+                NETWORK_MANAGER = ReflectionUtils.getOnlyField(PlayerConnection.getSuperclass(), NetworkManager);
+            } else {
+                NETWORK_MANAGER = ReflectionUtils.getOnlyField(PlayerConnection, NetworkManager);
+            }
+            sendPacket = ReflectionUtils.getMethods(PlayerConnection, void.class, Packet).get(0);
+        } else {
+            sendPacket = ReflectionUtils.getMethod(PlayerConnection, new String[]{"sendPacket"}, Packet);
+        }
+        if (minorVersion >= 8) {
+            ChatSerializer_DESERIALIZE = ReflectionUtils.getMethods(ChatSerializer, Object.class, String.class).get(0);
+            CHANNEL = ReflectionUtils.getOnlyField(NetworkManager, Channel.class);
+            try {
+                getProfile = ReflectionUtils.getOnlyMethod(EntityHuman, GameProfile.class);
+            } catch (IllegalStateException catServer) {
+                getProfile = ReflectionUtils.getMethod(EntityHuman, new String[] {"getProfile"});
+            }
+        }
+        PLAYER_CONNECTION = ReflectionUtils.getOnlyField(EntityPlayer, PlayerConnection);
+        getHandle = Class.forName("org.bukkit.craftbukkit." + serverPackage + ".entity.CraftPlayer").getMethod("getHandle");
+        BukkitTabList.load();
+        DataWatcher.load();
+        PacketEntityView.load();
+        PacketScoreboard.load();
+        if (minorVersion < 17) {
+            PING = ReflectionUtils.getField(EntityPlayer, "ping", "field_71138_i"); // 1.5.2 - 1.16.5, 1.7.10 Thermos
+        }
+    }
+
+    private void loadClasses() throws ClassNotFoundException {
+        if (minorVersion >= 17 && ReflectionUtils.classExists("net.minecraft.ChatFormatting")) {
+            ChatSerializer = Class.forName("net.minecraft.network.chat.Component$Serializer");
+            EntityHuman = Class.forName("net.minecraft.world.entity.player.Player");
+            NetworkManager = Class.forName("net.minecraft.network.Connection");
+            Packet = Class.forName("net.minecraft.network.protocol.Packet");
+            EntityPlayer = Class.forName("net.minecraft.server.level.ServerPlayer");
+            PlayerConnection = Class.forName("net.minecraft.server.network.ServerGamePacketListenerImpl");
+        } else if (minorVersion >= 17) {
+            ChatSerializer = Class.forName("net.minecraft.network.chat.IChatBaseComponent$ChatSerializer");
+            EntityHuman = Class.forName("net.minecraft.world.entity.player.EntityHuman");
+            NetworkManager = Class.forName("net.minecraft.network.NetworkManager");
+            Packet = Class.forName("net.minecraft.network.protocol.Packet");
+            EntityPlayer = Class.forName("net.minecraft.server.level.EntityPlayer");
+            PlayerConnection = Class.forName("net.minecraft.server.network.PlayerConnection");
+        } else {
+            EntityHuman = BukkitReflection.getLegacyClass("EntityHuman");
+            Packet = BukkitReflection.getLegacyClass("Packet");
+            EntityPlayer = BukkitReflection.getLegacyClass("EntityPlayer");
+            PlayerConnection = BukkitReflection.getLegacyClass("PlayerConnection");
+            NetworkManager = BukkitReflection.getLegacyClass("NetworkManager");
+            if (minorVersion >= 7) {
+                ChatSerializer = BukkitReflection.getLegacyClass("IChatBaseComponent$ChatSerializer", "ChatSerializer");
+            }
+        }
+    }
+}

bukkit/src/main/java/me/neznamy/tab/platforms/bukkit/nms/PacketEntityView.java

@@ -0,0 +1,394 @@
+package me.neznamy.tab.platforms.bukkit.nms;
+
+import lombok.Getter;
+import lombok.RequiredArgsConstructor;
+import lombok.SneakyThrows;
+import me.neznamy.tab.platforms.bukkit.BukkitTabPlayer;
+import me.neznamy.tab.shared.TAB;
+import me.neznamy.tab.shared.backend.EntityData;
+import me.neznamy.tab.shared.backend.Location;
+import me.neznamy.tab.shared.backend.entityview.EntityView;
+import me.neznamy.tab.shared.util.ReflectionUtils;
+import org.bukkit.Bukkit;
+import org.bukkit.entity.EntityType;
+import org.jetbrains.annotations.NotNull;
+
+import java.lang.reflect.Constructor;
+import java.lang.reflect.Field;
+import java.lang.reflect.Method;
+import java.util.Arrays;
+import java.util.EnumMap;
+import java.util.List;
+import java.util.UUID;
+
+@RequiredArgsConstructor
+@SuppressWarnings("unchecked")
+public class PacketEntityView implements EntityView {
+
+    /** PacketPlayOutEntityDestroy */
+    private static Class<?> EntityDestroyClass;
+    private static Constructor<?> newEntityDestroy;
+    private static Field EntityDestroy_Entities;
+
+    /** PacketPlayOutEntityMetadata */
+    private static Constructor<?> newEntityMetadata;
+    
+    /** PacketPlayOutEntityTeleport */
+    private static Class<?> EntityTeleportClass;
+    private static Constructor<?> newEntityTeleport;
+    private static Field EntityTeleport_EntityId;
+    private static Field EntityTeleport_X;
+    private static Field EntityTeleport_Y;
+    private static Field EntityTeleport_Z;
+
+    /** PacketPlayOutSpawnEntityLiving */
+    private static Class<?> SpawnEntityClass;
+    private static Constructor<?> newSpawnEntity;
+
+    /** 1.17+ */
+    private static Object Vec3D_Empty;
+    private static Object EntityTypes_ARMOR_STAND;
+
+    /** 1.16.5- */
+    private static Field SpawnEntity_EntityId;
+    private static Field SpawnEntity_EntityType;
+    private static Field SpawnEntity_UUID;
+    private static Field SpawnEntity_X;
+    private static Field SpawnEntity_Y;
+    private static Field SpawnEntity_Z;
+    private static Field SpawnEntity_DataWatcher;
+    private static final EnumMap<EntityType, Integer> entityIds = new EnumMap<>(EntityType.class);
+
+    /** Other entity packets */
+    private static Class<?> PacketPlayOutEntity;
+    private static Field PacketPlayOutEntity_ENTITYID;
+    private static Class<?> PacketPlayOutEntityLook;
+    private static Class<?> PacketPlayOutNamedEntitySpawn;
+    private static Field PacketPlayOutNamedEntitySpawn_ENTITYID;
+
+    private static Object dummyEntity;
+
+    @Getter
+    private static boolean available;
+
+    /** Player this view belongs to */
+    private final BukkitTabPlayer player;
+
+    /**
+     * Loads all required classes and fields and throws Exception if something went wrong
+     *
+     * @throws  ReflectiveOperationException
+     *          If something fails
+     */
+    public static void load() throws ReflectiveOperationException {
+        loadEntityMetadata();
+        loadEntityDestroy();
+        loadEntityTeleport();
+        loadEntityMove();
+        loadEntitySpawn();
+        available = true;
+    }
+
+    private static void loadEntityMetadata() throws ReflectiveOperationException {
+        // Class
+        Class<?> entityMetadataClass = getClass("network.protocol.game.ClientboundSetEntityDataPacket",
+                "network.protocol.game.PacketPlayOutEntityMetadata", "PacketPlayOutEntityMetadata", "Packet40EntityMetadata");
+
+        // Constructor
+        if (BukkitReflection.is1_19_3Plus()) {
+            newEntityMetadata = entityMetadataClass.getConstructor(int.class, List.class);
+        } else {
+            newEntityMetadata = entityMetadataClass.getConstructor(int.class, DataWatcher.DataWatcher, boolean.class);
+        }
+    }
+
+    private static void loadEntityDestroy() throws ReflectiveOperationException {
+        // Class
+        EntityDestroyClass = getClass("network.protocol.game.ClientboundRemoveEntitiesPacket",
+                "network.protocol.game.PacketPlayOutEntityDestroy", "PacketPlayOutEntityDestroy", "Packet29DestroyEntity");
+
+        // Constructor
+        try {
+            newEntityDestroy = EntityDestroyClass.getConstructor(int[].class);
+        } catch (NoSuchMethodException e) {
+            //1.17.0
+            newEntityDestroy = EntityDestroyClass.getConstructor(int.class);
+        }
+
+        // Field
+        EntityDestroy_Entities = ReflectionUtils.getOnlyField(EntityDestroyClass);
+    }
+
+    private static void loadEntityTeleport() throws ReflectiveOperationException {
+        // Class
+        EntityTeleportClass = getClass("network.protocol.game.ClientboundTeleportEntityPacket",
+                "network.protocol.game.PacketPlayOutEntityTeleport", "PacketPlayOutEntityTeleport", "Packet34EntityTeleport");
+
+        // Constructor
+        if (BukkitReflection.getMinorVersion() >= 17) {
+            newEntityTeleport = EntityTeleportClass.getConstructor(getClass("world.entity.Entity"));
+        } else {
+            newEntityTeleport = EntityTeleportClass.getConstructor();
+        }
+
+        // Fields
+        EntityTeleport_EntityId = ReflectionUtils.getFields(EntityTeleportClass, int.class).get(0);
+        if (BukkitReflection.getMinorVersion() >= 9) {
+            EntityTeleport_X = ReflectionUtils.getFields(EntityTeleportClass, double.class).get(0);
+            EntityTeleport_Y = ReflectionUtils.getFields(EntityTeleportClass, double.class).get(1);
+            EntityTeleport_Z = ReflectionUtils.getFields(EntityTeleportClass, double.class).get(2);
+        } else {
+            EntityTeleport_X = ReflectionUtils.getFields(EntityTeleportClass, int.class).get(1);
+            EntityTeleport_Y = ReflectionUtils.getFields(EntityTeleportClass, int.class).get(2);
+            EntityTeleport_Z = ReflectionUtils.getFields(EntityTeleportClass, int.class).get(3);
+        }
+
+        // Dummy armor stand for constructor
+        if (BukkitReflection.getMinorVersion() >= 17) {
+            Class<?> world = getClass("world.level.Level", "world.level.World", "World");
+            Class<?> entityArmorStand = getClass("world.entity.decoration.ArmorStand",
+                    "world.entity.decoration.EntityArmorStand", "EntityArmorStand");
+            Constructor<?> newEntityArmorStand = entityArmorStand.getConstructor(world, double.class, double.class, double.class);
+            Method World_getHandle = Class.forName("org.bukkit.craftbukkit." + BukkitReflection.getServerPackage() + ".CraftWorld").getMethod("getHandle");
+            dummyEntity = newEntityArmorStand.newInstance(World_getHandle.invoke(Bukkit.getWorlds().get(0)), 0, 0, 0);
+        }
+    }
+
+    private static void loadEntityMove() throws ReflectiveOperationException {
+        // Classes
+        PacketPlayOutEntity = getClass("network.protocol.game.ClientboundMoveEntityPacket",
+                "network.protocol.game.PacketPlayOutEntity", "PacketPlayOutEntity", "Packet30Entity");
+        PacketPlayOutEntityLook = getClass("network.protocol.game.ClientboundMoveEntityPacket$Rot",
+                "network.protocol.game.PacketPlayOutEntity$PacketPlayOutEntityLook", "PacketPlayOutEntity$PacketPlayOutEntityLook",
+                "PacketPlayOutEntityLook", "Packet32EntityLook");
+
+        // Field
+        PacketPlayOutEntity_ENTITYID = ReflectionUtils.getFields(PacketPlayOutEntity, int.class).get(0);
+    }
+
+    private static void loadEntitySpawn() throws ReflectiveOperationException {
+        SpawnEntityClass = getClass("network.protocol.game.ClientboundAddEntityPacket",
+                "network.protocol.game.PacketPlayOutSpawnEntity", "PacketPlayOutSpawnEntityLiving", "Packet24MobSpawn");
+        SpawnEntity_EntityId = ReflectionUtils.getFields(SpawnEntityClass, int.class).get(0);
+        if (BukkitReflection.getMinorVersion() >= 17) {
+            Class<?> Vec3D = getClass("world.phys.Vec3", "world.phys.Vec3D");
+            Vec3D_Empty = ReflectionUtils.getOnlyField(Vec3D, Vec3D).get(null);
+            Class<?> EntityTypes = getClass("world.entity.EntityType", "world.entity.EntityTypes");
+            if (BukkitReflection.isMojangMapped()) {
+                EntityTypes_ARMOR_STAND = EntityTypes.getDeclaredField("ARMOR_STAND").get(null);
+            } else if (BukkitReflection.getMinorVersion() >= 19) {
+                EntityTypes_ARMOR_STAND = EntityTypes.getDeclaredField("d").get(null);
+            } else {
+                EntityTypes_ARMOR_STAND = ReflectionUtils.getField(EntityTypes, "c", "f_20529_").get(null); // Mohist 1.18.2
+            }
+            if (BukkitReflection.getMinorVersion() >= 19) {
+                newSpawnEntity = SpawnEntityClass.getConstructor(int.class, UUID.class, double.class, double.class, double.class, float.class, float.class, EntityTypes, int.class, Vec3D, double.class);
+            } else {
+                newSpawnEntity = SpawnEntityClass.getConstructor(int.class, UUID.class, double.class, double.class, double.class, float.class, float.class, EntityTypes, int.class, Vec3D);
+            }
+        } else {
+            newSpawnEntity = SpawnEntityClass.getConstructor();
+            if (BukkitReflection.getMinorVersion() >= 9) {
+                SpawnEntity_UUID = ReflectionUtils.getOnlyField(SpawnEntityClass, UUID.class);
+                SpawnEntity_X = ReflectionUtils.getFields(SpawnEntityClass, double.class).get(0);
+                SpawnEntity_Y = ReflectionUtils.getFields(SpawnEntityClass, double.class).get(1);
+                SpawnEntity_Z = ReflectionUtils.getFields(SpawnEntityClass, double.class).get(2);
+            } else {
+                SpawnEntity_X = ReflectionUtils.getFields(SpawnEntityClass, int.class).get(2);
+                SpawnEntity_Y = ReflectionUtils.getFields(SpawnEntityClass, int.class).get(3);
+                SpawnEntity_Z = ReflectionUtils.getFields(SpawnEntityClass, int.class).get(4);
+            }
+            SpawnEntity_EntityType = ReflectionUtils.getFields(SpawnEntityClass, int.class).get(1);
+            if (BukkitReflection.getMinorVersion() <= 14) {
+                SpawnEntity_DataWatcher = ReflectionUtils.getOnlyField(SpawnEntityClass, DataWatcher.DataWatcher);
+            }
+        }
+        if (BukkitReflection.getMinorVersion() >= 13) {
+            entityIds.put(EntityType.ARMOR_STAND, 1);
+        } else {
+            entityIds.put(EntityType.WITHER, 64);
+            if (BukkitReflection.getMinorVersion() >= 8) {
+                entityIds.put(EntityType.ARMOR_STAND, 30);
+            }
+        }
+        if (!BukkitReflection.is1_20_2Plus()) {
+            PacketPlayOutNamedEntitySpawn = getClass("network.protocol.game.ClientboundAddPlayerPacket",
+                    "network.protocol.game.PacketPlayOutNamedEntitySpawn", "PacketPlayOutNamedEntitySpawn", "Packet20NamedEntitySpawn");
+            PacketPlayOutNamedEntitySpawn_ENTITYID = ReflectionUtils.getFields(PacketPlayOutNamedEntitySpawn, int.class).get(0);
+        }
+    }
+
+    private static int floor(double paramDouble) {
+        int i = (int)paramDouble;
+        return paramDouble < i ? i - 1 : i;
+    }
+
+    @SneakyThrows
+    @Override
+    public void spawnEntity(int entityId, @NotNull UUID id, @NotNull Object entityType, @NotNull Location l, @NotNull EntityData data) {
+        int minorVersion = BukkitReflection.getMinorVersion();
+        if (minorVersion >= 19) {
+            player.sendPacket(newSpawnEntity.newInstance(entityId, id, l.getX(), l.getY(), l.getZ(), 0, 0, EntityTypes_ARMOR_STAND, 0, Vec3D_Empty, 0d));
+        } else if (minorVersion >= 17) {
+            player.sendPacket(newSpawnEntity.newInstance(entityId, id, l.getX(), l.getY(), l.getZ(), 0, 0, EntityTypes_ARMOR_STAND, 0, Vec3D_Empty));
+        } else {
+            Object nmsPacket = newSpawnEntity.newInstance();
+            SpawnEntity_EntityId.set(nmsPacket, entityId);
+            if (minorVersion <= 14) {
+                SpawnEntity_DataWatcher.set(nmsPacket, data.build());
+            }
+            if (minorVersion >= 9) {
+                SpawnEntity_UUID.set(nmsPacket, id);
+                SpawnEntity_X.set(nmsPacket, l.getX());
+                SpawnEntity_Y.set(nmsPacket, l.getY());
+                SpawnEntity_Z.set(nmsPacket, l.getZ());
+            } else {
+                SpawnEntity_X.set(nmsPacket, floor(l.getX()*32));
+                SpawnEntity_Y.set(nmsPacket, floor(l.getY()*32));
+                SpawnEntity_Z.set(nmsPacket, floor(l.getZ()*32));
+            }
+            SpawnEntity_EntityType.set(nmsPacket, entityIds.get((EntityType) entityType));
+            player.sendPacket(nmsPacket);
+        }
+        if (TAB.getInstance().getServerVersion().getMinorVersion() >= 15) {
+            updateEntityMetadata(entityId, data);
+        }
+    }
+
+    @SneakyThrows
+    @Override
+    public void updateEntityMetadata(int entityId, @NotNull EntityData data) {
+        if (newEntityMetadata.getParameterCount() == 2) {
+            //1.19.3+
+            player.sendPacket(newEntityMetadata.newInstance(entityId, DataWatcher.DataWatcher_packDirty.invoke(data.build())));
+        } else {
+            player.sendPacket(newEntityMetadata.newInstance(entityId, data.build(), true));
+        }
+    }
+
+    @SneakyThrows
+    @Override
+    public void teleportEntity(int entityId, @NotNull Location location) {
+        Object nmsPacket;
+        if (BukkitReflection.getMinorVersion() >= 17) {
+            nmsPacket = newEntityTeleport.newInstance(dummyEntity);
+        } else {
+            nmsPacket = newEntityTeleport.newInstance();
+        }
+        EntityTeleport_EntityId.set(nmsPacket, entityId);
+        if (BukkitReflection.getMinorVersion() >= 9) {
+            EntityTeleport_X.set(nmsPacket, location.getX());
+            EntityTeleport_Y.set(nmsPacket, location.getY());
+            EntityTeleport_Z.set(nmsPacket, location.getZ());
+        } else {
+            EntityTeleport_X.set(nmsPacket, floor(location.getX()*32));
+            EntityTeleport_Y.set(nmsPacket, floor(location.getY()*32));
+            EntityTeleport_Z.set(nmsPacket, floor(location.getZ()*32));
+        }
+        player.sendPacket(nmsPacket);
+    }
+
+    @SneakyThrows
+    @Override
+    public void destroyEntities(int... entities) {
+        if (newEntityDestroy.getParameterTypes()[0] != int.class) {
+            player.sendPacket(newEntityDestroy.newInstance(new Object[]{entities}));
+        } else {
+            //1.17.0 Mojank
+            for (int entity : entities) {
+                player.sendPacket(newEntityDestroy.newInstance(entity));
+            }
+        }
+    }
+
+    @Override
+    public boolean isDestroyPacket(@NotNull Object packet) {
+        return EntityDestroyClass.isInstance(packet);
+    }
+
+    @Override
+    public boolean isTeleportPacket(@NotNull Object packet) {
+        return EntityTeleportClass.isInstance(packet);
+    }
+
+    @Override
+    public boolean isNamedEntitySpawnPacket(@NotNull Object packet) {
+        if (BukkitReflection.is1_20_2Plus()) {
+            return SpawnEntityClass.isInstance(packet);
+        } else {
+            return PacketPlayOutNamedEntitySpawn.isInstance(packet);
+        }
+    }
+
+    @Override
+    public boolean isMovePacket(@NotNull Object packet) {
+        return PacketPlayOutEntity.isInstance(packet);
+    }
+
+    @Override
+    public boolean isLookPacket(@NotNull Object packet) {
+        return PacketPlayOutEntityLook.isInstance(packet);
+    }
+
+    @Override
+    @SneakyThrows
+    public int getTeleportEntityId(@NotNull Object teleportPacket) {
+        return EntityTeleport_EntityId.getInt(teleportPacket);
+    }
+
+    @Override
+    @SneakyThrows
+    public int getMoveEntityId(@NotNull Object movePacket) {
+        return PacketPlayOutEntity_ENTITYID.getInt(movePacket);
+    }
+
+    @Override
+    @SneakyThrows
+    public int getSpawnedPlayer(@NotNull Object playerSpawnPacket) {
+        if (BukkitReflection.is1_20_2Plus()) {
+            return SpawnEntity_EntityId.getInt(playerSpawnPacket);
+        } else {
+            return PacketPlayOutNamedEntitySpawn_ENTITYID.getInt(playerSpawnPacket);
+        }
+    }
+
+    @Override
+    @SneakyThrows
+    public int[] getDestroyedEntities(@NotNull Object destroyPacket) {
+        Object entities = PacketEntityView.EntityDestroy_Entities.get(destroyPacket);
+        if (BukkitReflection.getMinorVersion() >= 17) {
+            if (entities instanceof List) {
+                return ((List<Integer>)entities).stream().mapToInt(i -> i).toArray();
+            } else {
+                //1.17.0
+                return new int[]{(int) entities};
+            }
+        } else {
+            return (int[]) entities;
+        }
+    }
+
+    /**
+     * Returns class from given potential names. Supports modded servers, such as Thermos.
+     *
+     * @param   names
+     *          Potential class names
+     * @return  class from given name
+     * @throws  ClassNotFoundException
+     *          if class was not found
+     */
+    public static Class<?> getClass(@NotNull String... names) throws ClassNotFoundException {
+        for (String name : names) {
+            try {
+                if (BukkitReflection.getMinorVersion() >= 17) {
+                    return PacketEntityView.class.getClassLoader().loadClass("net.minecraft." + name);
+                } else {
+                    return PacketEntityView.class.getClassLoader().loadClass("net.minecraft.server." + BukkitReflection.getServerPackage() + "." + name);
+                }
+            } catch (ClassNotFoundException | NullPointerException e) {
+                // Wrong class name
+            }
+        }
+        throw new ClassNotFoundException("No class found with potential names " + Arrays.toString(names));
+    }
+}

bukkit/src/main/java/me/neznamy/tab/platforms/bukkit/nms/datawatcher/DataWatcher.java

@@ -1,81 +0,0 @@
-package me.neznamy.tab.platforms.bukkit.nms.datawatcher;
-
-import lombok.Getter;
-import lombok.SneakyThrows;
-import lombok.ToString;
-import me.neznamy.tab.platforms.bukkit.nms.storage.nms.NMSStorage;
-import me.neznamy.tab.shared.backend.EntityData;
-import me.neznamy.tab.shared.util.ReflectionUtils;
-import org.jetbrains.annotations.NotNull;
-
-import java.lang.reflect.Constructor;
-import java.lang.reflect.Method;
-import java.util.HashMap;
-import java.util.Map;
-
-/**
- * A class representing the n.m.s.DataWatcher class to make work with it much easier
- */
-@ToString
-public class DataWatcher implements EntityData {
-
-    /** NMS Fields */
-    public static Class<?> CLASS;
-    public static Constructor<?> CONSTRUCTOR;
-    public static Method REGISTER;
-    public static Method markDirty;
-    public static Method packDirty;
-    
-    /** Watched data */
-    private final Map<Integer, DataWatcherItem> dataValues = new HashMap<>();
-
-    /** Helper for easier data write */
-    @Getter private final DataWatcherHelper helper = new DataWatcherHelper(this);
-
-    /**
-     * Loads all required Fields and throws Exception if something went wrong
-     *
-     * @param   nms
-     *          NMS storage reference
-     */
-    public static void load(NMSStorage nms) {
-        CONSTRUCTOR = ReflectionUtils.getOnlyConstructor(CLASS);
-        if (nms.is1_19_3Plus()) {
-            markDirty = ReflectionUtils.getOnlyMethod(CLASS, void.class, DataWatcherObject.CLASS);
-        }
-    }
-    
-    /**
-     * Sets value into data values
-     *
-     * @param   type
-     *          type of value
-     * @param   value
-     *          value
-     */
-    public void setValue(@NotNull DataWatcherObject type, @NotNull Object value) {
-        dataValues.put(type.getPosition(), new DataWatcherItem(type, value));
-    }
-
-    /**
-     * Converts the class into an instance of NMS.DataWatcher
-     *
-     * @return  an instance of NMS.DataWatcher with same data
-     */
-    @SneakyThrows
-    public @NotNull Object build() {
-        NMSStorage nms = NMSStorage.getInstance();
-        Object nmsWatcher;
-        if (CONSTRUCTOR.getParameterCount() == 1) { //1.7+
-            nmsWatcher = CONSTRUCTOR.newInstance(new Object[] {null});
-        } else {
-            nmsWatcher = CONSTRUCTOR.newInstance();
-        }
-        for (DataWatcherItem item : dataValues.values()) {
-            Object nmsObject = item.getType().build();
-            REGISTER.invoke(nmsWatcher, nmsObject, item.getValue());
-            if (nms.is1_19_3Plus()) markDirty.invoke(nmsWatcher, nmsObject);
-        }
-        return nmsWatcher;
-    }
-}

bukkit/src/main/java/me/neznamy/tab/platforms/bukkit/nms/datawatcher/DataWatcherHelper.java

@@ -1,138 +0,0 @@
-package me.neznamy.tab.platforms.bukkit.nms.datawatcher;
-
-import lombok.AllArgsConstructor;
-import me.neznamy.tab.shared.ProtocolVersion;
-import me.neznamy.tab.shared.chat.IChatBaseComponent;
-import me.neznamy.tab.platforms.bukkit.nms.storage.nms.NMSStorage;
-import me.neznamy.tab.shared.TAB;
-import org.jetbrains.annotations.NotNull;
-
-import java.util.Optional;
-
-/**
- * A class to help to assign DataWatcher items as positions often change per-version
- */
-@AllArgsConstructor
-public class DataWatcherHelper {
-
-    /** NMS Fields */
-    public static Class<?> DataWatcherRegistry;
-    public static Class<?> DataWatcherSerializer;
-    public static Object DataWatcherSerializer_BYTE;
-    public static Object DataWatcherSerializer_FLOAT;
-    public static Object DataWatcherSerializer_STRING;
-    public static Object DataWatcherSerializer_OPTIONAL_COMPONENT;
-    public static Object DataWatcherSerializer_BOOLEAN;
-
-    /** Instance fields */
-    private final int armorStandFlagsPosition = getArmorStandFlagsPosition();
-    @NotNull private final DataWatcher data;
-
-    /**
-     * Returns armor stand flags position based on server version
-     *
-     * @return  armor stand flags position based on server version
-     */
-    private int getArmorStandFlagsPosition() {
-        if (TAB.getInstance().getServerVersion().getMinorVersion() >= 17) {
-            //1.17.x, 1.18.x, 1.19.x
-            return 15;
-        } else if (TAB.getInstance().getServerVersion().getMinorVersion() >= 15) {
-            //1.15.x, 1.16.x
-            return 14;
-        } else if (TAB.getInstance().getServerVersion().getMinorVersion() >= 14) {
-            //1.14.x
-            return 13;
-        } else if (TAB.getInstance().getServerVersion().getMinorVersion() >= 10) {
-            //1.10.x - 1.13.x
-            return 11;
-        } else {
-            //1.8.x - 1.9.x
-            return 10;
-        }
-    }
-
-    /**
-     * Writes entity byte flags
-     *
-     * @param   flags
-     *          flags to write
-     */
-    public void setEntityFlags(byte flags) {
-        data.setValue(new DataWatcherObject(0, DataWatcherSerializer_BYTE), flags);
-    }
-
-    /**
-     * Writes entity custom name with position based on server version and value depending on client version (RGB or not)
-     *
-     * @param   customName
-     *          target custom name
-     * @param   clientVersion
-     *          client version
-     */
-    public void setCustomName(@NotNull String customName, @NotNull ProtocolVersion clientVersion) {
-        if (TAB.getInstance().getServerVersion().getMinorVersion() >= 13) {
-            data.setValue(new DataWatcherObject(2, DataWatcherSerializer_OPTIONAL_COMPONENT),
-                    Optional.ofNullable(NMSStorage.getInstance().toNMSComponent(IChatBaseComponent.optimizedComponent(customName), clientVersion)));
-        } else if (TAB.getInstance().getServerVersion().getMinorVersion() >= 8) {
-            data.setValue(new DataWatcherObject(2, DataWatcherSerializer_STRING), customName);
-        } else {
-            //name length is limited to 64 characters on <1.8
-            String cutName = (customName.length() > 64 ? customName.substring(0, 64) : customName);
-            if (TAB.getInstance().getServerVersion().getMinorVersion() >= 6) {
-                data.setValue(new DataWatcherObject(10, null), cutName);
-            } else {
-                data.setValue(new DataWatcherObject(5, null), cutName);
-            }
-        }
-    }
-
-    /**
-     * Writes custom name visibility boolean
-     *
-     * @param   visible
-     *          if visible or not
-     */
-    public void setCustomNameVisible(boolean visible) {
-        if (TAB.getInstance().getServerVersion().getMinorVersion() >= 9) {
-            data.setValue(new DataWatcherObject(3, DataWatcherSerializer_BOOLEAN), visible);
-        } else {
-            data.setValue(new DataWatcherObject(3, null), (byte)(visible?1:0));
-        }
-    }
-
-    /**
-     * Writes entity health
-     *
-     * @param   health
-     *          health of entity
-     */
-    public void setHealth(float health) {
-        if (TAB.getInstance().getServerVersion().getMinorVersion() >= 6) {
-            data.setValue(new DataWatcherObject(6, DataWatcherSerializer_FLOAT), health);
-        } else {
-            data.setValue(new DataWatcherObject(16, null), (int)health);
-        }
-    }
-
-    /**
-     * Writes armor stand flags
-     *
-     * @param   flags
-     *          flags to write
-     */
-    public void setArmorStandFlags(byte flags) {
-        data.setValue(new DataWatcherObject(armorStandFlagsPosition, DataWatcherSerializer_BYTE), flags);
-    }
-
-    /**
-     * Writes wither invulnerable time
-     * @param   time
-     *          Time, apparently
-     */
-    public void setWitherInvulnerableTime(int time) {
-        if (TAB.getInstance().getServerVersion().getMinorVersion() > 8)
-            throw new UnsupportedOperationException("Not supported on 1.9+");
-        data.setValue(new DataWatcherObject(20, null), time);
-    }
-}

bukkit/src/main/java/me/neznamy/tab/platforms/bukkit/nms/datawatcher/DataWatcherItem.java

@@ -1,39 +0,0 @@
-package me.neznamy.tab.platforms.bukkit.nms.datawatcher;
-
-import lombok.Data;
-import me.neznamy.tab.platforms.bukkit.nms.storage.nms.NMSStorage;
-import me.neznamy.tab.shared.util.ReflectionUtils;
-import org.jetbrains.annotations.NotNull;
-
-import java.lang.reflect.Field;
-
-/**
- * Class representing NMS Data Watcher Item
- */
-@Data
-public class DataWatcherItem {
-
-    /** NMS Fields */
-    public static Class<?> CLASS;
-    public static Field TYPE;
-    public static Field VALUE;
-
-    /** Instance fields */
-    @NotNull private final DataWatcherObject type;
-    @NotNull private final Object value;
-
-    /**
-     * Loads all required Fields
-     *
-     * @param   nms
-     *          NMS storage reference
-     */
-    public static void load(NMSStorage nms) {
-        VALUE = ReflectionUtils.getFields(CLASS, Object.class).get(0);
-        if (nms.getMinorVersion() >= 9) {
-            TYPE = ReflectionUtils.getOnlyField(CLASS, DataWatcherObject.CLASS);
-        } else {
-            TYPE = ReflectionUtils.getFields(CLASS, int.class).get(1);
-        }
-    }
-}

bukkit/src/main/java/me/neznamy/tab/platforms/bukkit/nms/datawatcher/DataWatcherObject.java

@@ -1,54 +0,0 @@
-package me.neznamy.tab.platforms.bukkit.nms.datawatcher;
-
-import lombok.AllArgsConstructor;
-import lombok.Data;
-import lombok.SneakyThrows;
-import me.neznamy.tab.platforms.bukkit.nms.storage.nms.NMSStorage;
-import me.neznamy.tab.shared.util.ReflectionUtils;
-import org.jetbrains.annotations.Nullable;
-
-import java.lang.reflect.Constructor;
-import java.lang.reflect.Field;
-
-/**
- * A class representing the n.m.s.DataWatcherObject class to make work with it much easier
- */
-@Data @AllArgsConstructor
-public class DataWatcherObject {
-
-    /** NMS Fields */
-    public static Class<?> CLASS;
-    public static Constructor<?> CONSTRUCTOR;
-    public static Field SLOT;
-    public static Field SERIALIZER;
-    
-    /** Instance fields */
-    private final int position;
-    @Nullable private final Object serializer;
-
-    /**
-     * Loads all required Fields and throws Exception if something went wrong
-     *
-     * @throws  NoSuchMethodException
-     *          If something fails
-     */
-    public static void load() throws NoSuchMethodException {
-        CONSTRUCTOR = CLASS.getConstructor(int.class, DataWatcherHelper.DataWatcherSerializer);
-        SLOT = ReflectionUtils.getOnlyField(CLASS, int.class);
-        SERIALIZER = ReflectionUtils.getOnlyField(CLASS, DataWatcherHelper.DataWatcherSerializer);
-    }
-
-    /**
-     * Converts the object into NMS object
-     *
-     * @return  NMS object
-     */
-    @SneakyThrows
-    public Object build() {
-        if (NMSStorage.getInstance().getMinorVersion() >= 9) {
-            return DataWatcherObject.CONSTRUCTOR.newInstance(position, serializer);
-        } else {
-            return position;
-        }
-    }
-}

bukkit/src/main/java/me/neznamy/tab/platforms/bukkit/nms/storage/nms/BukkitLegacyNMSStorage.java

@@ -1,139 +0,0 @@
-package me.neznamy.tab.platforms.bukkit.nms.storage.nms;
-
-import me.neznamy.tab.platforms.bukkit.BukkitTabList;
-import me.neznamy.tab.platforms.bukkit.nms.datawatcher.DataWatcher;
-import me.neznamy.tab.platforms.bukkit.nms.datawatcher.DataWatcherHelper;
-import me.neznamy.tab.platforms.bukkit.nms.datawatcher.DataWatcherItem;
-import me.neznamy.tab.platforms.bukkit.nms.datawatcher.DataWatcherObject;
-import me.neznamy.tab.platforms.bukkit.nms.storage.packet.*;
-import me.neznamy.tab.platforms.bukkit.scoreboard.PacketScoreboard;
-import me.neznamy.tab.shared.util.ReflectionUtils;
-import org.jetbrains.annotations.NotNull;
-
-import java.util.Arrays;
-
-/**
- * NMS loader for Minecraft 1.5.2 - 1.16.5 using Bukkit mapping.
- */
-@SuppressWarnings({"unchecked", "rawtypes"})
-public class BukkitLegacyNMSStorage extends NMSStorage {
-
-    /**
-     * Returns class with given potential names in same order
-     *
-     * @param   names
-     *          possible class names
-     * @return  class for specified names
-     * @throws  ClassNotFoundException
-     *          if class does not exist
-     */
-    private Class<?> getLegacyClass(@NotNull String... names) throws ClassNotFoundException {
-        for (String name : names) {
-            try {
-                return getLegacyClass(name);
-            } catch (ClassNotFoundException e) {
-                //not the first class name in array
-            }
-        }
-        throw new ClassNotFoundException("No class found with possible names " + Arrays.toString(names));
-    }
-
-    /**
-     * Returns class from given name
-     *
-     * @param   name
-     *          class name
-     * @return  class from given name
-     * @throws  ClassNotFoundException
-     *          if class was not found
-     */
-    public Class<?> getLegacyClass(@NotNull String name) throws ClassNotFoundException {
-        return Class.forName("net.minecraft.server." + serverPackage + "." + name);
-    }
-
-    @Override
-    public void loadNamedFieldsAndMethods() throws ReflectiveOperationException {
-        PacketScoreboard.ScoreboardScore_setScore = ReflectionUtils.getMethod(PacketScoreboard.ScoreboardScoreClass, new String[] {"setScore", "c"}, int.class); // 1.5.1+, 1.5
-        PacketScoreboard.ScoreboardTeam_setAllowFriendlyFire = ReflectionUtils.getMethod(PacketScoreboard.ScoreboardTeam, new String[] {"setAllowFriendlyFire", "a"}, boolean.class); // 1.5.1+, 1.5
-        PacketScoreboard.ScoreboardTeam_setCanSeeFriendlyInvisibles = ReflectionUtils.getMethod(PacketScoreboard.ScoreboardTeam, new String[] {"setCanSeeFriendlyInvisibles", "b"}, boolean.class); // 1.5.1+, 1.5
-        if (minorVersion >= 7) {
-            ChatSerializer_DESERIALIZE = ChatSerializer.getMethod("a", String.class);
-        }
-        if (minorVersion >= 8) {
-            PacketScoreboard.ScoreboardTeam_setNameTagVisibility = ReflectionUtils.getMethod(PacketScoreboard.ScoreboardTeam, new String[] {"setNameTagVisibility", "a"}, PacketScoreboard.EnumNameTagVisibility); // {1.8.1+, 1.8}
-        }
-        if (minorVersion >= 9) {
-            DataWatcher.REGISTER = DataWatcher.CLASS.getMethod("register", DataWatcherObject.CLASS, Object.class);
-            DataWatcherHelper.DataWatcherSerializer_BYTE = DataWatcherHelper.DataWatcherRegistry.getDeclaredField("a").get(null);
-            DataWatcherHelper.DataWatcherSerializer_FLOAT = DataWatcherHelper.DataWatcherRegistry.getDeclaredField("c").get(null);
-            DataWatcherHelper.DataWatcherSerializer_STRING = DataWatcherHelper.DataWatcherRegistry.getDeclaredField("d").get(null);
-            if (getMinorVersion() >= 13) {
-                DataWatcherHelper.DataWatcherSerializer_OPTIONAL_COMPONENT = DataWatcherHelper.DataWatcherRegistry.getDeclaredField("f").get(null);
-                DataWatcherHelper.DataWatcherSerializer_BOOLEAN = DataWatcherHelper.DataWatcherRegistry.getDeclaredField("i").get(null);
-            } else {
-                DataWatcherHelper.DataWatcherSerializer_BOOLEAN = DataWatcherHelper.DataWatcherRegistry.getDeclaredField("h").get(null);
-            }
-        } else {
-            DataWatcher.REGISTER = DataWatcher.CLASS.getMethod("a", int.class, Object.class);
-        }
-        if (minorVersion >= 13) {
-            PacketScoreboard.ScoreboardTeam_setPrefix = PacketScoreboard.ScoreboardTeam.getMethod("setPrefix", IChatBaseComponent);
-            PacketScoreboard.ScoreboardTeam_setSuffix = PacketScoreboard.ScoreboardTeam.getMethod("setSuffix", IChatBaseComponent);
-        } else {
-            PacketScoreboard.ScoreboardTeam_setPrefix = ReflectionUtils.getMethod(PacketScoreboard.ScoreboardTeam, new String[] {"setPrefix", "b"}, String.class); // 1.5.1+, 1.5
-            PacketScoreboard.ScoreboardTeam_setSuffix = ReflectionUtils.getMethod(PacketScoreboard.ScoreboardTeam, new String[] {"setSuffix", "c"}, String.class); // 1.5.1+, 1.5
-        }
-    }
-
-    @Override
-    public void loadClasses() throws ClassNotFoundException {
-        EntityHuman = getLegacyClass("EntityHuman");
-        World = getLegacyClass("World");
-        Packet = getLegacyClass("Packet");
-        EnumChatFormat = (Class<Enum>) getLegacyClass("EnumChatFormat");
-        EntityPlayer = getLegacyClass("EntityPlayer");
-        Entity = getLegacyClass("Entity");
-        EntityLiving = getLegacyClass("EntityLiving");
-        PlayerConnection = getLegacyClass("PlayerConnection");
-        NetworkManager = getLegacyClass("NetworkManager");
-        DataWatcher.CLASS = getLegacyClass("DataWatcher");
-        DataWatcherItem.CLASS = getLegacyClass("DataWatcher$Item", "DataWatcher$WatchableObject", "WatchableObject");
-        PacketPlayOutSpawnEntityLivingStorage.CLASS = getLegacyClass("PacketPlayOutSpawnEntityLiving", "Packet24MobSpawn");
-        PacketPlayOutEntityTeleportStorage.CLASS = getLegacyClass("PacketPlayOutEntityTeleport", "Packet34EntityTeleport");
-        PacketPlayOutEntity = getLegacyClass("PacketPlayOutEntity", "Packet30Entity");
-        PacketPlayOutEntityDestroyStorage.CLASS = getLegacyClass("PacketPlayOutEntityDestroy", "Packet29DestroyEntity");
-        PacketPlayOutEntityLook = getLegacyClass("PacketPlayOutEntity$PacketPlayOutEntityLook", "PacketPlayOutEntityLook", "Packet32EntityLook");
-        PacketPlayOutEntityMetadataStorage.CLASS = getLegacyClass("PacketPlayOutEntityMetadata", "Packet40EntityMetadata");
-        PacketPlayOutNamedEntitySpawn = getLegacyClass("PacketPlayOutNamedEntitySpawn", "Packet20NamedEntitySpawn");
-        PacketScoreboard.DisplayObjectiveClass = getLegacyClass("PacketPlayOutScoreboardDisplayObjective", "Packet208SetScoreboardDisplayObjective");
-        PacketScoreboard.ObjectivePacketClass = getLegacyClass("PacketPlayOutScoreboardObjective", "Packet206SetScoreboardObjective");
-        PacketScoreboard.TeamPacketClass = getLegacyClass("PacketPlayOutScoreboardTeam", "Packet209SetScoreboardTeam");
-        PacketScoreboard.ScorePacketClass = getLegacyClass("PacketPlayOutScoreboardScore", "Packet207SetScoreboardScore");
-        PacketScoreboard.Scoreboard = getLegacyClass("Scoreboard");
-        PacketScoreboard.ScoreboardObjective = getLegacyClass("ScoreboardObjective");
-        PacketScoreboard.ScoreboardScoreClass = getLegacyClass("ScoreboardScore");
-        PacketScoreboard.IScoreboardCriteria = getLegacyClass("IScoreboardCriteria", "IObjective"); // 1.5.1+, 1.5
-        PacketScoreboard.ScoreboardTeam = getLegacyClass("ScoreboardTeam");
-        if (minorVersion >= 7) {
-            IChatBaseComponent = getLegacyClass("IChatBaseComponent");
-            ChatSerializer = getLegacyClass("IChatBaseComponent$ChatSerializer", "ChatSerializer");
-        }
-        if (minorVersion >= 8) {
-            BukkitTabList.PacketPlayOutPlayerListHeaderFooterClass = getLegacyClass("PacketPlayOutPlayerListHeaderFooter");
-            EntityArmorStand = getLegacyClass("EntityArmorStand");
-            BukkitTabList.PacketPlayOutPlayerInfoClass = getLegacyClass("PacketPlayOutPlayerInfo");
-            BukkitTabList.EnumPlayerInfoActionClass = (Class<Enum>) getLegacyClass("PacketPlayOutPlayerInfo$EnumPlayerInfoAction", "EnumPlayerInfoAction");
-            BukkitTabList.PlayerInfoDataClass = getLegacyClass("PacketPlayOutPlayerInfo$PlayerInfoData", "PlayerInfoData");
-            BukkitTabList.EnumGamemodeClass = (Class<Enum>) getLegacyClass("EnumGamemode", "WorldSettings$EnumGamemode");
-            PacketScoreboard.EnumScoreboardHealthDisplay = (Class<Enum>) getLegacyClass("IScoreboardCriteria$EnumScoreboardHealthDisplay", "EnumScoreboardHealthDisplay");
-            PacketScoreboard.EnumScoreboardAction = (Class<Enum>) getLegacyClass("ScoreboardServer$Action", "PacketPlayOutScoreboardScore$EnumScoreboardAction", "EnumScoreboardAction");
-            PacketScoreboard.EnumNameTagVisibility = (Class<Enum>) getLegacyClass("ScoreboardTeamBase$EnumNameTagVisibility", "EnumNameTagVisibility");
-        }
-        if (minorVersion >= 9) {
-            DataWatcherObject.CLASS = getLegacyClass("DataWatcherObject");
-            DataWatcherHelper.DataWatcherRegistry = getLegacyClass("DataWatcherRegistry");
-            DataWatcherHelper.DataWatcherSerializer = getLegacyClass("DataWatcherSerializer");
-            PacketScoreboard.EnumTeamPush = (Class<Enum>) getLegacyClass("ScoreboardTeamBase$EnumTeamPush");
-        }
-    }
-}

bukkit/src/main/java/me/neznamy/tab/platforms/bukkit/nms/storage/nms/BukkitModernNMSStorage.java

@@ -1,107 +0,0 @@
-package me.neznamy.tab.platforms.bukkit.nms.storage.nms;
-
-import me.neznamy.tab.platforms.bukkit.BukkitTabList;
-import me.neznamy.tab.platforms.bukkit.nms.datawatcher.DataWatcher;
-import me.neznamy.tab.platforms.bukkit.nms.datawatcher.DataWatcherHelper;
-import me.neznamy.tab.platforms.bukkit.nms.datawatcher.DataWatcherItem;
-import me.neznamy.tab.platforms.bukkit.nms.datawatcher.DataWatcherObject;
-import me.neznamy.tab.platforms.bukkit.nms.storage.packet.*;
-import me.neznamy.tab.platforms.bukkit.scoreboard.PacketScoreboard;
-import me.neznamy.tab.shared.util.ReflectionUtils;
-
-/**
- * NMS loader for minecraft 1.17+ using Mojang packaging and bukkit names.
- */
-@SuppressWarnings({"unchecked", "rawtypes"})
-public class BukkitModernNMSStorage extends NMSStorage {
-
-    @Override
-    public void loadNamedFieldsAndMethods() throws ReflectiveOperationException {
-        ChatSerializer_DESERIALIZE = ChatSerializer.getMethod("a", String.class);
-        DataWatcher.REGISTER = ReflectionUtils.getMethod(DataWatcher.CLASS, new String[]{"register", "a"}, DataWatcherObject.CLASS, Object.class); // {Bukkit, Bukkit 1.18+}
-        PacketScoreboard.ScoreboardScore_setScore = ReflectionUtils.getMethod(PacketScoreboard.ScoreboardScoreClass, new String[]{"setScore", "b"}, int.class); // {Bukkit, Bukkit 1.18+}
-        PacketScoreboard.ScoreboardTeam_setAllowFriendlyFire = ReflectionUtils.getMethod(PacketScoreboard.ScoreboardTeam, new String[]{"setAllowFriendlyFire", "a"}, boolean.class); // {Bukkit, Bukkit 1.18+}
-        PacketScoreboard.ScoreboardTeam_setCanSeeFriendlyInvisibles = ReflectionUtils.getMethod(PacketScoreboard.ScoreboardTeam, new String[]{"setCanSeeFriendlyInvisibles", "b"}, boolean.class); // {Bukkit, Bukkit 1.18+}
-        PacketScoreboard.ScoreboardTeam_setPrefix = ReflectionUtils.getMethod(PacketScoreboard.ScoreboardTeam, new String[]{"setPrefix", "b"}, IChatBaseComponent); // {Bukkit, Bukkit 1.18+}
-        PacketScoreboard.ScoreboardTeam_setSuffix = ReflectionUtils.getMethod(PacketScoreboard.ScoreboardTeam, new String[]{"setSuffix", "c"}, IChatBaseComponent); // {Bukkit, Bukkit 1.18+}
-        PacketScoreboard.ScoreboardTeam_setNameTagVisibility = ReflectionUtils.getMethod(PacketScoreboard.ScoreboardTeam, new String[]{"setNameTagVisibility", "a"}, PacketScoreboard.EnumNameTagVisibility); // {Bukkit, Bukkit 1.18+}
-        DataWatcherHelper.DataWatcherSerializer_BYTE = DataWatcherHelper.DataWatcherRegistry.getDeclaredField("a").get(null);
-        DataWatcherHelper.DataWatcherSerializer_FLOAT = DataWatcherHelper.DataWatcherRegistry.getDeclaredField("c").get(null);
-        DataWatcherHelper.DataWatcherSerializer_STRING = DataWatcherHelper.DataWatcherRegistry.getDeclaredField("d").get(null);
-        if (is1_19_3Plus()) {
-            DataWatcherHelper.DataWatcherSerializer_OPTIONAL_COMPONENT = DataWatcherHelper.DataWatcherRegistry.getDeclaredField("g").get(null);
-            if (is1_19_4Plus()) {
-                DataWatcherHelper.DataWatcherSerializer_BOOLEAN = DataWatcherHelper.DataWatcherRegistry.getDeclaredField("k").get(null);
-            } else {
-                DataWatcherHelper.DataWatcherSerializer_BOOLEAN = DataWatcherHelper.DataWatcherRegistry.getDeclaredField("j").get(null);
-            }
-         } else {
-            DataWatcherHelper.DataWatcherSerializer_OPTIONAL_COMPONENT = DataWatcherHelper.DataWatcherRegistry.getDeclaredField("f").get(null);
-            DataWatcherHelper.DataWatcherSerializer_BOOLEAN = DataWatcherHelper.DataWatcherRegistry.getDeclaredField("i").get(null);
-        }
-        if (minorVersion >= 19) {
-            PacketPlayOutSpawnEntityLivingStorage.EntityTypes_ARMOR_STAND = PacketPlayOutSpawnEntityLivingStorage.EntityTypes.getDeclaredField("d").get(null);
-            (PacketPlayOutSpawnEntityLivingStorage.ENTITY_TYPE = PacketPlayOutSpawnEntityLivingStorage.CLASS.getDeclaredField("e")).setAccessible(true);
-            DataWatcher.packDirty = DataWatcher.CLASS.getMethod("b");
-        }
-    }
-
-    @Override
-    public void loadClasses() throws ClassNotFoundException {
-        ChatSerializer = Class.forName("net.minecraft.network.chat.IChatBaseComponent$ChatSerializer");
-        World = Class.forName("net.minecraft.world.level.World");
-        EntityArmorStand = Class.forName("net.minecraft.world.entity.decoration.EntityArmorStand");
-        EntityHuman = Class.forName("net.minecraft.world.entity.player.EntityHuman");
-        NetworkManager = Class.forName("net.minecraft.network.NetworkManager");
-        IChatBaseComponent = Class.forName("net.minecraft.network.chat.IChatBaseComponent");
-        Packet = Class.forName("net.minecraft.network.protocol.Packet");
-        EnumChatFormat = (Class<Enum>) Class.forName("net.minecraft.EnumChatFormat");
-        EntityPlayer = Class.forName("net.minecraft.server.level.EntityPlayer");
-        Entity = Class.forName("net.minecraft.world.entity.Entity");
-        EntityLiving = Class.forName("net.minecraft.world.entity.EntityLiving");
-        PlayerConnection = Class.forName("net.minecraft.server.network.PlayerConnection");
-        BukkitTabList.PacketPlayOutPlayerListHeaderFooterClass = Class.forName("net.minecraft.network.protocol.game.PacketPlayOutPlayerListHeaderFooter");
-        PacketScoreboard.DisplayObjectiveClass = Class.forName("net.minecraft.network.protocol.game.PacketPlayOutScoreboardDisplayObjective");
-        PacketScoreboard.ObjectivePacketClass = Class.forName("net.minecraft.network.protocol.game.PacketPlayOutScoreboardObjective");
-        PacketScoreboard.Scoreboard = Class.forName("net.minecraft.world.scores.Scoreboard");
-        PacketScoreboard.ScorePacketClass = Class.forName("net.minecraft.network.protocol.game.PacketPlayOutScoreboardScore");
-        PacketScoreboard.ScoreboardObjective = Class.forName("net.minecraft.world.scores.ScoreboardObjective");
-        PacketScoreboard.ScoreboardScoreClass = Class.forName("net.minecraft.world.scores.ScoreboardScore");
-        PacketScoreboard.IScoreboardCriteria = Class.forName("net.minecraft.world.scores.criteria.IScoreboardCriteria");
-        PacketScoreboard.EnumScoreboardHealthDisplay = (Class<Enum>) Class.forName("net.minecraft.world.scores.criteria.IScoreboardCriteria$EnumScoreboardHealthDisplay");
-        PacketScoreboard.EnumScoreboardAction = (Class<Enum>) Class.forName("net.minecraft.server.ScoreboardServer$Action");
-        PacketScoreboard.TeamPacketClass = Class.forName("net.minecraft.network.protocol.game.PacketPlayOutScoreboardTeam");
-        PacketScoreboard.ScoreboardTeam = Class.forName("net.minecraft.world.scores.ScoreboardTeam");
-        PacketScoreboard.EnumNameTagVisibility = (Class<Enum>) Class.forName("net.minecraft.world.scores.ScoreboardTeamBase$EnumNameTagVisibility");
-        PacketScoreboard.EnumTeamPush = (Class<Enum>) Class.forName("net.minecraft.world.scores.ScoreboardTeamBase$EnumTeamPush");
-        DataWatcher.CLASS = Class.forName("net.minecraft.network.syncher.DataWatcher");
-        DataWatcherItem.CLASS = Class.forName("net.minecraft.network.syncher.DataWatcher$Item");
-        DataWatcherObject.CLASS = Class.forName("net.minecraft.network.syncher.DataWatcherObject");
-        DataWatcherHelper.DataWatcherRegistry = Class.forName("net.minecraft.network.syncher.DataWatcherRegistry");
-        DataWatcherHelper.DataWatcherSerializer = Class.forName("net.minecraft.network.syncher.DataWatcherSerializer");
-        PacketPlayOutEntityTeleportStorage.CLASS = Class.forName("net.minecraft.network.protocol.game.PacketPlayOutEntityTeleport");
-        PacketPlayOutEntity = Class.forName("net.minecraft.network.protocol.game.PacketPlayOutEntity");
-        PacketPlayOutEntityDestroyStorage.CLASS = Class.forName("net.minecraft.network.protocol.game.PacketPlayOutEntityDestroy");
-        PacketPlayOutEntityLook = Class.forName("net.minecraft.network.protocol.game.PacketPlayOutEntity$PacketPlayOutEntityLook");
-        PacketPlayOutEntityMetadataStorage.CLASS = Class.forName("net.minecraft.network.protocol.game.PacketPlayOutEntityMetadata");
-        PacketPlayOutNamedEntitySpawn = Class.forName("net.minecraft.network.protocol.game.PacketPlayOutNamedEntitySpawn");
-        BukkitTabList.EnumGamemodeClass = (Class<Enum>) Class.forName("net.minecraft.world.level.EnumGamemode");
-        if (minorVersion >= 19) {
-            PacketPlayOutSpawnEntityLivingStorage.EntityTypes = Class.forName("net.minecraft.world.entity.EntityTypes");
-            PacketPlayOutSpawnEntityLivingStorage.CLASS = Class.forName("net.minecraft.network.protocol.game.PacketPlayOutSpawnEntity");
-        } else {
-            PacketPlayOutSpawnEntityLivingStorage.CLASS = Class.forName("net.minecraft.network.protocol.game.PacketPlayOutSpawnEntityLiving");
-        }
-        if (is1_19_3Plus()) {
-            BukkitTabList.ClientboundPlayerInfoRemovePacket = Class.forName("net.minecraft.network.protocol.game.ClientboundPlayerInfoRemovePacket");
-            BukkitTabList.PacketPlayOutPlayerInfoClass = Class.forName("net.minecraft.network.protocol.game.ClientboundPlayerInfoUpdatePacket");
-            BukkitTabList.EnumPlayerInfoActionClass = (Class<Enum>) Class.forName("net.minecraft.network.protocol.game.ClientboundPlayerInfoUpdatePacket$a");
-            BukkitTabList.PlayerInfoDataClass = Class.forName("net.minecraft.network.protocol.game.ClientboundPlayerInfoUpdatePacket$b");
-            BukkitTabList.RemoteChatSession$Data = Class.forName("net.minecraft.network.chat.RemoteChatSession$a");
-        } else {
-            BukkitTabList.PacketPlayOutPlayerInfoClass = Class.forName("net.minecraft.network.protocol.game.PacketPlayOutPlayerInfo");
-            BukkitTabList.EnumPlayerInfoActionClass = (Class<Enum>) Class.forName("net.minecraft.network.protocol.game.PacketPlayOutPlayerInfo$EnumPlayerInfoAction");
-            BukkitTabList.PlayerInfoDataClass = Class.forName("net.minecraft.network.protocol.game.PacketPlayOutPlayerInfo$PlayerInfoData");
-        }
-    }
-}

bukkit/src/main/java/me/neznamy/tab/platforms/bukkit/nms/storage/nms/MojangModernNMSStorage.java

@@ -1,97 +0,0 @@
-package me.neznamy.tab.platforms.bukkit.nms.storage.nms;
-
-import me.neznamy.tab.platforms.bukkit.BukkitTabList;
-import me.neznamy.tab.platforms.bukkit.nms.datawatcher.DataWatcher;
-import me.neznamy.tab.platforms.bukkit.nms.datawatcher.DataWatcherHelper;
-import me.neznamy.tab.platforms.bukkit.nms.datawatcher.DataWatcherItem;
-import me.neznamy.tab.platforms.bukkit.nms.datawatcher.DataWatcherObject;
-import me.neznamy.tab.platforms.bukkit.nms.storage.packet.*;
-import me.neznamy.tab.platforms.bukkit.scoreboard.PacketScoreboard;
-
-/**
- * NMS loader for minecraft 1.17+ using Mojang packaging and names.
- */
-@SuppressWarnings({"unchecked", "rawtypes"})
-public class MojangModernNMSStorage extends NMSStorage {
-
-    @Override
-    public void loadNamedFieldsAndMethods() throws ReflectiveOperationException {
-        ChatSerializer_DESERIALIZE = ChatSerializer.getMethod("fromJson", String.class);
-        DataWatcher.REGISTER = DataWatcher.CLASS.getMethod("define", DataWatcherObject.CLASS, Object.class);
-        PacketScoreboard.ScoreboardScore_setScore = PacketScoreboard.ScoreboardScoreClass.getMethod("setScore", int.class);
-        PacketScoreboard.ScoreboardTeam_setAllowFriendlyFire = PacketScoreboard.ScoreboardTeam.getMethod("setAllowFriendlyFire", boolean.class);
-        PacketScoreboard.ScoreboardTeam_setCanSeeFriendlyInvisibles = PacketScoreboard.ScoreboardTeam.getMethod("setSeeFriendlyInvisibles", boolean.class);
-        PacketScoreboard.ScoreboardTeam_setPrefix = PacketScoreboard.ScoreboardTeam.getMethod("setPlayerPrefix", IChatBaseComponent);
-        PacketScoreboard.ScoreboardTeam_setSuffix = PacketScoreboard.ScoreboardTeam.getMethod("setPlayerSuffix", IChatBaseComponent);
-        PacketScoreboard.ScoreboardTeam_setNameTagVisibility = PacketScoreboard.ScoreboardTeam.getMethod("setNameTagVisibility", PacketScoreboard.EnumNameTagVisibility);
-        DataWatcherHelper.DataWatcherSerializer_BYTE = DataWatcherHelper.DataWatcherRegistry.getDeclaredField("BYTE").get(null);
-        DataWatcherHelper.DataWatcherSerializer_FLOAT = DataWatcherHelper.DataWatcherRegistry.getDeclaredField("FLOAT").get(null);
-        DataWatcherHelper.DataWatcherSerializer_STRING = DataWatcherHelper.DataWatcherRegistry.getDeclaredField("STRING").get(null);
-        DataWatcherHelper.DataWatcherSerializer_OPTIONAL_COMPONENT = DataWatcherHelper.DataWatcherRegistry.getDeclaredField("OPTIONAL_COMPONENT").get(null);
-        DataWatcherHelper.DataWatcherSerializer_BOOLEAN = DataWatcherHelper.DataWatcherRegistry.getDeclaredField("BOOLEAN").get(null);
-        if (minorVersion >= 19) {
-            PacketPlayOutSpawnEntityLivingStorage.EntityTypes_ARMOR_STAND = PacketPlayOutSpawnEntityLivingStorage.EntityTypes.getDeclaredField("ARMOR_STAND").get(null);
-            (PacketPlayOutSpawnEntityLivingStorage.ENTITY_TYPE = PacketPlayOutSpawnEntityLivingStorage.CLASS.getDeclaredField("type")).setAccessible(true);
-            DataWatcher.packDirty = DataWatcher.CLASS.getMethod("packDirty");
-        }
-    }
-
-    @Override
-    public void loadClasses() throws ClassNotFoundException {
-        IChatBaseComponent = Class.forName("net.minecraft.network.chat.Component");
-        ChatSerializer = Class.forName("net.minecraft.network.chat.Component$Serializer");
-        World = Class.forName("net.minecraft.world.level.Level");
-        EntityArmorStand = Class.forName("net.minecraft.world.entity.decoration.ArmorStand");
-        EntityHuman = Class.forName("net.minecraft.world.entity.player.Player");
-        NetworkManager = Class.forName("net.minecraft.network.Connection");
-        Packet = Class.forName("net.minecraft.network.protocol.Packet");
-        EnumChatFormat = (Class<Enum>) Class.forName("net.minecraft.ChatFormatting");
-        EntityPlayer = Class.forName("net.minecraft.server.level.ServerPlayer");
-        Entity = Class.forName("net.minecraft.world.entity.Entity");
-        EntityLiving = Class.forName("net.minecraft.world.entity.LivingEntity");
-        PlayerConnection = Class.forName("net.minecraft.server.network.ServerGamePacketListenerImpl");
-        BukkitTabList.PacketPlayOutPlayerListHeaderFooterClass = Class.forName("net.minecraft.network.protocol.game.ClientboundTabListPacket");
-        DataWatcher.CLASS = Class.forName("net.minecraft.network.syncher.SynchedEntityData");
-        DataWatcherItem.CLASS = Class.forName("net.minecraft.network.syncher.SynchedEntityData$DataItem");
-        DataWatcherObject.CLASS = Class.forName("net.minecraft.network.syncher.EntityDataAccessor");
-        DataWatcherHelper.DataWatcherRegistry = Class.forName("net.minecraft.network.syncher.EntityDataSerializers");
-        DataWatcherHelper.DataWatcherSerializer = Class.forName("net.minecraft.network.syncher.EntityDataSerializer");
-        PacketPlayOutEntityTeleportStorage.CLASS = Class.forName("net.minecraft.network.protocol.game.ClientboundTeleportEntityPacket");
-        PacketPlayOutEntity = Class.forName("net.minecraft.network.protocol.game.ClientboundMoveEntityPacket");
-        PacketPlayOutEntityDestroyStorage.CLASS = Class.forName("net.minecraft.network.protocol.game.ClientboundRemoveEntitiesPacket");
-        PacketPlayOutEntityLook = Class.forName("net.minecraft.network.protocol.game.ClientboundMoveEntityPacket$Rot");
-        PacketPlayOutEntityMetadataStorage.CLASS = Class.forName("net.minecraft.network.protocol.game.ClientboundSetEntityDataPacket");
-        PacketPlayOutNamedEntitySpawn = Class.forName("net.minecraft.network.protocol.game.ClientboundAddPlayerPacket");
-        BukkitTabList.EnumGamemodeClass = (Class<Enum>) Class.forName("net.minecraft.world.level.GameType");
-        PacketScoreboard.DisplayObjectiveClass = Class.forName("net.minecraft.network.protocol.game.ClientboundSetDisplayObjectivePacket");
-        PacketScoreboard.ObjectivePacketClass = Class.forName("net.minecraft.network.protocol.game.ClientboundSetObjectivePacket");
-        PacketScoreboard.Scoreboard = Class.forName("net.minecraft.world.scores.Scoreboard");
-        PacketScoreboard.ScorePacketClass = Class.forName("net.minecraft.network.protocol.game.ClientboundSetScorePacket");
-        PacketScoreboard.ScoreboardObjective = Class.forName("net.minecraft.world.scores.Objective");
-        PacketScoreboard.ScoreboardScoreClass = Class.forName("net.minecraft.world.scores.Score");
-        PacketScoreboard.IScoreboardCriteria = Class.forName("net.minecraft.world.scores.criteria.ObjectiveCriteria");
-        PacketScoreboard.EnumScoreboardHealthDisplay = (Class<Enum>) Class.forName("net.minecraft.world.scores.criteria.ObjectiveCriteria$RenderType");
-        PacketScoreboard.EnumScoreboardAction = (Class<Enum>) Class.forName("net.minecraft.server.ServerScoreboard$Method");
-        PacketScoreboard.TeamPacketClass = Class.forName("net.minecraft.network.protocol.game.ClientboundSetPlayerTeamPacket");
-        PacketScoreboard.ScoreboardTeam = Class.forName("net.minecraft.world.scores.PlayerTeam");
-        PacketScoreboard.EnumNameTagVisibility = (Class<Enum>) Class.forName("net.minecraft.world.scores.Team$Visibility");
-        PacketScoreboard.EnumTeamPush = (Class<Enum>) Class.forName("net.minecraft.world.scores.Team$CollisionRule");
-        if (minorVersion >= 19) {
-            PacketPlayOutSpawnEntityLivingStorage.EntityTypes = Class.forName("net.minecraft.world.entity.EntityType");
-            PacketPlayOutSpawnEntityLivingStorage.CLASS = Class.forName("net.minecraft.network.protocol.game.ClientboundAddEntityPacket");
-        } else {
-            PacketPlayOutSpawnEntityLivingStorage.CLASS = Class.forName("net.minecraft.network.protocol.game.ClientboundAddMobPacket");
-        }
-        if (is1_19_3Plus()) {
-            BukkitTabList.ClientboundPlayerInfoRemovePacket = Class.forName("net.minecraft.network.protocol.game.ClientboundPlayerInfoRemovePacket");
-            BukkitTabList.PacketPlayOutPlayerInfoClass = Class.forName("net.minecraft.network.protocol.game.ClientboundPlayerInfoUpdatePacket");
-            BukkitTabList.EnumPlayerInfoActionClass = (Class<Enum>) Class.forName("net.minecraft.network.protocol.game.ClientboundPlayerInfoUpdatePacket$Action");
-            BukkitTabList.PlayerInfoDataClass = Class.forName("net.minecraft.network.protocol.game.ClientboundPlayerInfoUpdatePacket$Entry");
-            BukkitTabList.RemoteChatSession$Data = Class.forName("net.minecraft.network.chat.RemoteChatSession$Data");
-        } else {
-            BukkitTabList.PacketPlayOutPlayerInfoClass = Class.forName("net.minecraft.network.protocol.game.ClientboundPlayerInfoPacket");
-            BukkitTabList.EnumPlayerInfoActionClass = (Class<Enum>) Class.forName("net.minecraft.network.protocol.game.ClientboundPlayerInfoPacket$Action");
-            BukkitTabList.PlayerInfoDataClass = Class.forName("net.minecraft.network.protocol.game.ClientboundPlayerInfoPacket$PlayerUpdate");
-        }
-    }
-}

bukkit/src/main/java/me/neznamy/tab/platforms/bukkit/nms/storage/nms/NMSStorage.java

@@ -1,162 +0,0 @@
-package me.neznamy.tab.platforms.bukkit.nms.storage.nms;
-
-import com.mojang.authlib.GameProfile;
-import io.netty.channel.Channel;
-import lombok.Getter;
-import lombok.Setter;
-import lombok.SneakyThrows;
-import me.neznamy.tab.platforms.bukkit.BukkitTabList;
-import me.neznamy.tab.platforms.bukkit.scoreboard.PacketScoreboard;
-import me.neznamy.tab.shared.ProtocolVersion;
-import me.neznamy.tab.shared.chat.IChatBaseComponent;
-import me.neznamy.tab.shared.util.ComponentCache;
-import me.neznamy.tab.shared.util.ReflectionUtils;
-import me.neznamy.tab.platforms.bukkit.nms.datawatcher.DataWatcher;
-import me.neznamy.tab.platforms.bukkit.nms.datawatcher.DataWatcherItem;
-import me.neznamy.tab.platforms.bukkit.nms.datawatcher.DataWatcherObject;
-import me.neznamy.tab.platforms.bukkit.nms.storage.packet.*;
-import org.bukkit.Bukkit;
-import org.jetbrains.annotations.NotNull;
-import org.jetbrains.annotations.Nullable;
-
-import java.lang.reflect.Constructor;
-import java.lang.reflect.Field;
-import java.lang.reflect.Method;
-
-/**
- * Class holding all NMS classes, methods, fields and constructors used by TAB.
- */
-@SuppressWarnings("rawtypes")
-public abstract class NMSStorage {
-
-    /** Instance of this class */
-    @Getter @Setter private static NMSStorage instance;
-
-    /** Server's NMS/CraftBukkit package */
-    @Getter protected final String serverPackage = Bukkit.getServer().getClass().getPackage().getName().split("\\.")[3];
-
-    /** Server's minor version */
-    @Getter protected final int minorVersion = Integer.parseInt(serverPackage.split("_")[1]);
-
-    /** Flag determining whether the server version is at least 1.19.3 or not */
-    @Getter private final boolean is1_19_3Plus = ReflectionUtils.classExists("net.minecraft.network.protocol.game.ClientboundPlayerInfoUpdatePacket");
-    @Getter private final boolean is1_19_4Plus = is1_19_3Plus && !serverPackage.equals("v1_19_R2");
-
-    /** Basic universal values */
-    protected Class<?> Packet;
-    protected Class<?> NetworkManager;
-    protected Class<?> EntityArmorStand;
-    protected Class<?> World;
-    public Class<Enum> EnumChatFormat;
-    public Class<?> EntityPlayer;
-    protected Class<?> EntityHuman;
-    public Class<?> Entity;
-    public Class<?> EntityLiving;
-    protected Class<?> PlayerConnection;
-
-    // Ping field for 1.5.2 - 1.16.5, 1.17+ has Player#getPing()
-    public Field PING;
-
-    public Field PLAYER_CONNECTION;
-    public Field NETWORK_MANAGER;
-    public Field CHANNEL;
-    public Method getHandle;
-    public Method sendPacket;
-    public Method getProfile;
-
-    /** Chat components */
-    public Class<?> IChatBaseComponent;
-    protected Class<?> ChatSerializer;
-    public Method ChatSerializer_DESERIALIZE;
-
-    /** Other entity packets */
-    public Class<?> PacketPlayOutEntity;
-    public Field PacketPlayOutEntity_ENTITYID;
-
-    public Class<?> PacketPlayOutEntityLook;
-
-    public Class<?> PacketPlayOutNamedEntitySpawn;
-    public Field PacketPlayOutNamedEntitySpawn_ENTITYID;
-
-    public Object dummyEntity;
-
-    private final ComponentCache<IChatBaseComponent, Object> componentCache = new ComponentCache<>(10000,
-            (component, clientVersion) -> ChatSerializer_DESERIALIZE.invoke(null, component.toString(clientVersion)));
-
-    /**
-     * Constructs new instance and attempts to load all fields, methods and constructors.
-     */
-    @SneakyThrows
-    public NMSStorage() {
-        ProtocolVersion.UNKNOWN_SERVER_VERSION.setMinorVersion(minorVersion); //fixing compatibility with forks that set version field value to "Unknown"
-        loadClasses();
-        if (minorVersion >= 7) {
-            NETWORK_MANAGER = ReflectionUtils.getOnlyField(PlayerConnection, NetworkManager);
-            sendPacket = ReflectionUtils.getMethods(PlayerConnection, void.class, Packet).get(0);
-        } else {
-            sendPacket = ReflectionUtils.getMethod(PlayerConnection, new String[]{"sendPacket"}, Packet);
-        }
-        if (minorVersion >= 8) {
-            CHANNEL = ReflectionUtils.getOnlyField(NetworkManager, Channel.class);
-            getProfile = ReflectionUtils.getOnlyMethod(EntityHuman, GameProfile.class);
-            Constructor<?> newEntityArmorStand = EntityArmorStand.getConstructor(World, double.class, double.class, double.class);
-            Method World_getHandle = Class.forName("org.bukkit.craftbukkit." + serverPackage + ".CraftWorld").getMethod("getHandle");
-            dummyEntity = newEntityArmorStand.newInstance(World_getHandle.invoke(Bukkit.getWorlds().get(0)), 0, 0, 0);
-            BukkitTabList.load(this);
-        }
-        if (minorVersion >= 9) {
-            DataWatcherObject.load();
-        }
-        PLAYER_CONNECTION = ReflectionUtils.getOnlyField(EntityPlayer, PlayerConnection);
-        getHandle = Class.forName("org.bukkit.craftbukkit." + serverPackage + ".entity.CraftPlayer").getMethod("getHandle");
-        DataWatcher.load(this);
-        DataWatcherItem.load(this);
-        PacketPlayOutEntityDestroyStorage.load();
-        PacketPlayOutEntityMetadataStorage.load(this);
-        PacketPlayOutEntityTeleportStorage.load(this);
-        PacketPlayOutSpawnEntityLivingStorage.load(this);
-        PacketScoreboard.load(this);
-        PacketPlayOutEntity_ENTITYID = ReflectionUtils.getFields(PacketPlayOutEntity, int.class).get(0);
-        PacketPlayOutNamedEntitySpawn_ENTITYID = ReflectionUtils.getFields(PacketPlayOutNamedEntitySpawn, int.class).get(0);
-        loadNamedFieldsAndMethods();
-        if (minorVersion < 17) {
-            try {
-                (PING = EntityPlayer.getDeclaredField("ping")).setAccessible(true); // 1.5.2 - 1.16.5
-            } catch (NoSuchFieldException e) {
-                (PING = EntityPlayer.getDeclaredField("field_71138_i")).setAccessible(true); // 1.7.10 Thermos
-            }
-        }
-    }
-
-    /**
-     * Loads all classes used by the plugin
-     *
-     * @throws  ClassNotFoundException
-     *          If a class was not found
-     */
-    public abstract void loadClasses() throws ClassNotFoundException;
-
-    /**
-     * Loads all fields and methods which must be loaded by their name due to
-     * lack of other methods of reliably retrieving them.
-     *
-     * @throws  ReflectiveOperationException
-     *          If a field or method was not found
-     */
-    public abstract void loadNamedFieldsAndMethods() throws ReflectiveOperationException;
-
-    /**
-     * Converts TAB's IChatBaseComponent into minecraft's component using String deserialization.
-     * If the requested component is found in cache, it is returned. If not, it is created, added into cache and returned.
-     * If {@code component} is {@code null}, returns {@code null}
-     *
-     * @param   component
-     *          component to convert
-     * @param   clientVersion
-     *          client version used to decide RGB conversion
-     * @return  converted component or {@code null} if {@code component} is {@code null}
-     */
-    public @Nullable Object toNMSComponent(@NotNull IChatBaseComponent component, @NotNull ProtocolVersion clientVersion) {
-        return componentCache.get(component, clientVersion);
-    }
-}

bukkit/src/main/java/me/neznamy/tab/platforms/bukkit/nms/storage/nms/ThermosNMSStorage.java

@@ -1,31 +0,0 @@
-package me.neznamy.tab.platforms.bukkit.nms.storage.nms;
-
-import me.neznamy.tab.platforms.bukkit.nms.datawatcher.DataWatcher;
-import me.neznamy.tab.platforms.bukkit.scoreboard.PacketScoreboard;
-import org.jetbrains.annotations.NotNull;
-
-/**
- * NMS loader for Thermos 1.7.10.
- */
-public class ThermosNMSStorage extends BukkitLegacyNMSStorage {
-
-    @Override
-    public Class<?> getLegacyClass(@NotNull String name) throws ClassNotFoundException {
-        try {
-            return getClass().getClassLoader().loadClass("net.minecraft.server." + serverPackage + "." + name);
-        } catch (NullPointerException e) {
-            // nested class not found
-            throw new ClassNotFoundException(name);
-        }
-    }
-
-    @Override
-    public void loadNamedFieldsAndMethods() throws ReflectiveOperationException {
-        PacketScoreboard.ScoreboardScore_setScore = PacketScoreboard.ScoreboardScoreClass.getMethod("func_96647_c", int.class);
-        PacketScoreboard.ScoreboardTeam_setAllowFriendlyFire = PacketScoreboard.ScoreboardTeam.getMethod("func_96660_a", boolean.class);
-        PacketScoreboard.ScoreboardTeam_setCanSeeFriendlyInvisibles = PacketScoreboard.ScoreboardTeam.getMethod("func_98300_b", boolean.class);
-        DataWatcher.REGISTER = DataWatcher.CLASS.getMethod("func_75682_a", int.class, Object.class);
-        PacketScoreboard.ScoreboardTeam_setPrefix = PacketScoreboard.ScoreboardTeam.getMethod("func_96666_b", String.class);
-        PacketScoreboard.ScoreboardTeam_setSuffix = PacketScoreboard.ScoreboardTeam.getMethod("func_96662_c", String.class);
-    }
-}

bukkit/src/main/java/me/neznamy/tab/platforms/bukkit/nms/storage/packet/PacketPlayOutEntityDestroyStorage.java

@@ -1,33 +0,0 @@
-package me.neznamy.tab.platforms.bukkit.nms.storage.packet;
-
-import me.neznamy.tab.shared.util.ReflectionUtils;
-
-import java.lang.reflect.Constructor;
-import java.lang.reflect.Field;
-
-/**
- * Custom class for holding data used in PacketPlayOutEntityDestroy minecraft packet.
- */
-public class PacketPlayOutEntityDestroyStorage {
-
-    /** NMS Fields */
-    public static Class<?> CLASS;
-    public static Constructor<?> CONSTRUCTOR;
-    public static Field ENTITIES;
-
-    /**
-     * Loads all required Fields and throws Exception if something went wrong
-     *
-     * @throws  NoSuchMethodException
-     *          If something fails
-     */
-    public static void load() throws NoSuchMethodException {
-        ENTITIES = ReflectionUtils.getOnlyField(CLASS);
-        try {
-            CONSTRUCTOR = CLASS.getConstructor(int[].class);
-        } catch (NoSuchMethodException e) {
-            //1.17.0
-            CONSTRUCTOR = CLASS.getConstructor(int.class);
-        }
-    }
-}

bukkit/src/main/java/me/neznamy/tab/platforms/bukkit/nms/storage/packet/PacketPlayOutEntityMetadataStorage.java

@@ -1,33 +0,0 @@
-package me.neznamy.tab.platforms.bukkit.nms.storage.packet;
-
-import me.neznamy.tab.platforms.bukkit.nms.datawatcher.DataWatcher;
-import me.neznamy.tab.platforms.bukkit.nms.storage.nms.NMSStorage;
-
-import java.lang.reflect.Constructor;
-import java.util.List;
-
-/**
- * Custom class for holding data used in PacketPlayOutEntityMetadata minecraft packet.
- */
-public class PacketPlayOutEntityMetadataStorage {
-
-    /** NMS Fields */
-    public static Class<?> CLASS;
-    public static Constructor<?> CONSTRUCTOR;
-
-    /**
-     * Loads all required Fields and throws Exception if something went wrong
-     *
-     * @param   nms
-     *          NMS storage reference
-     * @throws  NoSuchMethodException
-     *          If something fails
-     */
-    public static void load(NMSStorage nms) throws NoSuchMethodException {
-        if (nms.is1_19_3Plus()) {
-            CONSTRUCTOR = CLASS.getConstructor(int.class, List.class);
-        } else {
-            CONSTRUCTOR = CLASS.getConstructor(int.class, DataWatcher.CLASS, boolean.class);
-        }
-    }
-}

bukkit/src/main/java/me/neznamy/tab/platforms/bukkit/nms/storage/packet/PacketPlayOutEntityTeleportStorage.java

@@ -1,87 +0,0 @@
-package me.neznamy.tab.platforms.bukkit.nms.storage.packet;
-
-import lombok.SneakyThrows;
-import me.neznamy.tab.platforms.bukkit.nms.storage.nms.NMSStorage;
-import me.neznamy.tab.shared.backend.Location;
-import me.neznamy.tab.shared.util.ReflectionUtils;
-
-import java.lang.reflect.Constructor;
-import java.lang.reflect.Field;
-
-/**
- * Custom class for holding data used in PacketPlayOutEntityTeleport minecraft packet.
- */
-public class PacketPlayOutEntityTeleportStorage {
-
-    /** NMS Fields */
-    public static Class<?> CLASS;
-    public static Constructor<?> CONSTRUCTOR;
-    public static Field ENTITY_ID;
-    public static Field X;
-    public static Field Y;
-    public static Field Z;
-    public static Field YAW;
-    public static Field PITCH;
-
-    /**
-     * Loads all required Fields and throws Exception if something went wrong
-     *
-     * @param   nms
-     *          NMS storage reference
-     * @throws  NoSuchMethodException
-     *          If something fails
-     */
-    public static void load(NMSStorage nms) throws NoSuchMethodException {
-        ENTITY_ID = ReflectionUtils.getFields(CLASS, int.class).get(0);
-        YAW = ReflectionUtils.getFields(CLASS, byte.class).get(0);
-        PITCH = ReflectionUtils.getFields(CLASS, byte.class).get(1);
-        if (nms.getMinorVersion() >= 17) {
-            CONSTRUCTOR = CLASS.getConstructor(nms.Entity);
-        } else {
-            CONSTRUCTOR = CLASS.getConstructor();
-        }
-        if (nms.getMinorVersion() >= 9) {
-            X = ReflectionUtils.getFields(CLASS, double.class).get(0);
-            Y = ReflectionUtils.getFields(CLASS, double.class).get(1);
-            Z = ReflectionUtils.getFields(CLASS, double.class).get(2);
-        } else {
-            X = ReflectionUtils.getFields(CLASS, int.class).get(1);
-            Y = ReflectionUtils.getFields(CLASS, int.class).get(2);
-            Z = ReflectionUtils.getFields(CLASS, int.class).get(3);
-        }
-    }
-
-    /**
-     * Converts this class into NMS packet
-     *
-     * @return  NMS packet
-     */
-    @SneakyThrows
-    public static Object build(int entityId, Location location) {
-        NMSStorage nms = NMSStorage.getInstance();
-        Object nmsPacket;
-        if (nms.getMinorVersion() >= 17) {
-            nmsPacket = CONSTRUCTOR.newInstance(nms.dummyEntity);
-        } else {
-            nmsPacket = CONSTRUCTOR.newInstance();
-        }
-        ENTITY_ID.set(nmsPacket, entityId);
-        if (nms.getMinorVersion() >= 9) {
-            X.set(nmsPacket, location.getX());
-            Y.set(nmsPacket, location.getY());
-            Z.set(nmsPacket, location.getZ());
-        } else {
-            X.set(nmsPacket, floor(location.getX()*32));
-            Y.set(nmsPacket, floor(location.getY()*32));
-            Z.set(nmsPacket, floor(location.getZ()*32));
-        }
-        YAW.set(nmsPacket, (byte) (location.getYaw()/360*256));
-        PITCH.set(nmsPacket, (byte) (location.getPitch()/360*256));
-        return nmsPacket;
-    }
-
-    private static int floor(double paramDouble) {
-        int i = (int)paramDouble;
-        return paramDouble < i ? i - 1 : i;
-    }
-}

bukkit/src/main/java/me/neznamy/tab/platforms/bukkit/nms/storage/packet/PacketPlayOutSpawnEntityLivingStorage.java

@@ -1,133 +0,0 @@
-package me.neznamy.tab.platforms.bukkit.nms.storage.packet;
-
-import lombok.SneakyThrows;
-import me.neznamy.tab.platforms.bukkit.nms.datawatcher.DataWatcher;
-import me.neznamy.tab.platforms.bukkit.nms.storage.nms.NMSStorage;
-import me.neznamy.tab.shared.backend.EntityData;
-import me.neznamy.tab.shared.backend.Location;
-import me.neznamy.tab.shared.util.ReflectionUtils;
-import org.bukkit.entity.EntityType;
-
-import java.lang.reflect.Constructor;
-import java.lang.reflect.Field;
-import java.util.EnumMap;
-import java.util.UUID;
-
-/**
- * Custom class for holding data used in PacketPlayOutSpawnEntityLiving minecraft packet.
- */
-public class PacketPlayOutSpawnEntityLivingStorage {
-
-    /** NMS Fields */
-    public static Class<?> CLASS;
-    public static Class<?> EntityTypes;
-    public static Constructor<?> CONSTRUCTOR;
-    public static Field ENTITY_ID;
-    public static Field ENTITY_TYPE;
-    public static Field YAW;
-    public static Field PITCH;
-    public static Field UUID;
-    public static Field X;
-    public static Field Y;
-    public static Field Z;
-    public static Field DATA_WATCHER;
-    public static Object EntityTypes_ARMOR_STAND;
-
-    /** Entity types */
-    public static final EnumMap<EntityType, Integer> entityIds = new EnumMap<>(EntityType.class);
-
-    /**
-     * Loads all required Fields and throws Exception if something went wrong
-     *
-     * @param   nms
-     *          NMS storage reference
-     * @throws  NoSuchMethodException
-     *          If something fails
-     */
-    public static void load(NMSStorage nms) throws NoSuchMethodException {
-        if (nms.getMinorVersion() >= 19) {
-            entityIds.put(EntityType.ARMOR_STAND, 2);
-        } else if (nms.getMinorVersion() >= 13) {
-            entityIds.put(EntityType.ARMOR_STAND, 1);
-        } else {
-            entityIds.put(EntityType.WITHER, 64);
-            if (nms.getMinorVersion() >= 8) {
-                entityIds.put(EntityType.ARMOR_STAND, 30);
-            }
-        }
-        
-        if (nms.getMinorVersion() >= 17) {
-            CONSTRUCTOR = CLASS.getConstructor(nms.is1_19_3Plus() ? nms.Entity : nms.EntityLiving);
-        } else {
-            CONSTRUCTOR = CLASS.getConstructor();
-        }
-        ENTITY_ID = ReflectionUtils.getFields(CLASS, int.class).get(0);
-        YAW = ReflectionUtils.getFields(CLASS, byte.class).get(0);
-        PITCH = ReflectionUtils.getFields(CLASS, byte.class).get(1);
-        if (nms.getMinorVersion() >= 9) {
-            UUID = ReflectionUtils.getOnlyField(CLASS, UUID.class);
-            if (nms.getMinorVersion() >= 19) {
-                X = ReflectionUtils.getFields(CLASS, double.class).get(2);
-                Y = ReflectionUtils.getFields(CLASS, double.class).get(3);
-                Z = ReflectionUtils.getFields(CLASS, double.class).get(4);
-            } else {
-                X = ReflectionUtils.getFields(CLASS, double.class).get(0);
-                Y = ReflectionUtils.getFields(CLASS, double.class).get(1);
-                Z = ReflectionUtils.getFields(CLASS, double.class).get(2);
-            }
-        } else {
-            X = ReflectionUtils.getFields(CLASS, int.class).get(2);
-            Y = ReflectionUtils.getFields(CLASS, int.class).get(3);
-            Z = ReflectionUtils.getFields(CLASS, int.class).get(4);
-        }
-        if (nms.getMinorVersion() < 19) {
-            ENTITY_TYPE = ReflectionUtils.getFields(CLASS, int.class).get(1);
-        }
-        if (nms.getMinorVersion() <= 14) {
-            DATA_WATCHER = ReflectionUtils.getOnlyField(CLASS, DataWatcher.CLASS);
-        }
-    }
-
-    /**
-     * Converts this class into NMS packet
-     *
-     * @return  NMS packet
-     */
-    @SneakyThrows
-    public static Object build(int entityId, UUID id, Object entityType, Location location, EntityData data) {
-        NMSStorage nms = NMSStorage.getInstance();
-        Object nmsPacket;
-        if (nms.getMinorVersion() >= 17) {
-            nmsPacket = CONSTRUCTOR.newInstance(nms.dummyEntity);
-        } else {
-            nmsPacket = CONSTRUCTOR.newInstance();
-        }
-        ENTITY_ID.set(nmsPacket, entityId);
-        YAW.set(nmsPacket, (byte)(location.getYaw() * 256.0f / 360.0f));
-        PITCH.set(nmsPacket, (byte)(location.getPitch() * 256.0f / 360.0f));
-        if (nms.getMinorVersion() <= 14) {
-            DATA_WATCHER.set(nmsPacket, data.build());
-        }
-        if (nms.getMinorVersion() >= 9) {
-            UUID.set(nmsPacket, id);
-            X.set(nmsPacket, location.getX());
-            Y.set(nmsPacket, location.getY());
-            Z.set(nmsPacket, location.getZ());
-        } else {
-            X.set(nmsPacket, floor(location.getX()*32));
-            Y.set(nmsPacket, floor(location.getY()*32));
-            Z.set(nmsPacket, floor(location.getZ()*32));
-        }
-        if (nms.getMinorVersion() >= 19) {
-            ENTITY_TYPE.set(nmsPacket, EntityTypes_ARMOR_STAND); // :(
-        } else {
-            ENTITY_TYPE.set(nmsPacket, entityIds.get((EntityType) entityType));
-        }
-        return nmsPacket;
-    }
-
-    private static int floor(double paramDouble) {
-        int i = (int)paramDouble;
-        return paramDouble < i ? i - 1 : i;
-    }
-}

bukkit/src/main/java/me/neznamy/tab/platforms/bukkit/platform/BukkitPlatform.java

@@ -0,0 +1,277 @@
+package me.neznamy.tab.platforms.bukkit.platform;
+
+import lombok.Getter;
+import lombok.SneakyThrows;
+import me.clip.placeholderapi.PlaceholderAPI;
+import me.neznamy.tab.platforms.bukkit.*;
+import me.neznamy.tab.shared.GroupManager;
+import me.neznamy.tab.shared.ProtocolVersion;
+import me.neznamy.tab.shared.TabConstants;
+import me.neznamy.tab.shared.chat.EnumChatFormat;
+import me.neznamy.tab.shared.chat.IChatBaseComponent;
+import me.neznamy.tab.shared.features.injection.PipelineInjector;
+import me.neznamy.tab.shared.features.types.TabFeature;
+import me.neznamy.tab.platforms.bukkit.features.BukkitTabExpansion;
+import me.neznamy.tab.platforms.bukkit.features.PerWorldPlayerList;
+import me.neznamy.tab.platforms.bukkit.features.WitherBossBar;
+import me.neznamy.tab.platforms.bukkit.features.BukkitNameTagX;
+import me.neznamy.tab.platforms.bukkit.nms.NMSStorage;
+import me.neznamy.tab.shared.TAB;
+import me.neznamy.tab.shared.backend.BackendPlatform;
+import me.neznamy.tab.shared.features.PlaceholderManagerImpl;
+import me.neznamy.tab.shared.features.bossbar.BossBarManagerImpl;
+import me.neznamy.tab.shared.features.nametags.NameTag;
+import me.neznamy.tab.shared.hook.LuckPermsHook;
+import me.neznamy.tab.shared.placeholders.PlayerPlaceholderImpl;
+import me.neznamy.tab.shared.placeholders.expansion.EmptyTabExpansion;
+import me.neznamy.tab.shared.placeholders.expansion.TabExpansion;
+import me.neznamy.tab.shared.platform.TabPlayer;
+import me.neznamy.tab.shared.util.ReflectionUtils;
+import net.milkbowl.vault.chat.Chat;
+import net.milkbowl.vault.permission.Permission;
+import org.bstats.bukkit.Metrics;
+import org.bstats.charts.SimplePie;
+import org.bukkit.Bukkit;
+import org.bukkit.command.PluginCommand;
+import org.bukkit.entity.Entity;
+import org.bukkit.entity.Player;
+import org.bukkit.plugin.RegisteredServiceProvider;
+import org.bukkit.plugin.java.JavaPlugin;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+import java.io.File;
+import java.lang.reflect.Field;
+
+/**
+ * Implementation of Platform interface for Bukkit platform
+ */
+@Getter
+public class BukkitPlatform implements BackendPlatform<Object> {
+
+    /** Plugin instance for registering tasks and events */
+    @NotNull
+    private final JavaPlugin plugin;
+
+    /** Variables checking presence of other plugins to hook into */
+    private final boolean placeholderAPI = ReflectionUtils.classExists("me.clip.placeholderapi.PlaceholderAPI");
+
+    /** NMS server to get TPS from on spigot */
+    @Nullable private Object server;
+
+    /** TPS field */
+    @Nullable private Field spigotTps;
+
+    /** Detection for presence of Paper's TPS getter */
+    private final boolean paperTps = ReflectionUtils.methodExists(Bukkit.class, "getTPS");
+
+    /** Detection for presence of Paper's MSPT getter */
+    private final boolean paperMspt = ReflectionUtils.methodExists(Bukkit.class, "getAverageTickTime");
+
+    public BukkitPlatform(@NotNull JavaPlugin plugin) {
+        this.plugin = plugin;
+        try {
+            server = Bukkit.getServer().getClass().getMethod("getServer").invoke(Bukkit.getServer());
+            spigotTps = server.getClass().getField("recentTps");
+        } catch (ReflectiveOperationException e) {
+            //not spigot
+        }
+    }
+
+    @Override
+    @NotNull
+    public BossBarManagerImpl getLegacyBossBar() {
+        return new WitherBossBar(plugin);
+    }
+
+    @Override
+    public void loadPlayers() {
+        for (Player p : BukkitUtils.getOnlinePlayers()) {
+            TAB.getInstance().addPlayer(new BukkitTabPlayer(this, p));
+        }
+    }
+
+    @Override
+    public void registerPlaceholders() {
+        PlaceholderManagerImpl manager = TAB.getInstance().getPlaceholderManager();
+        manager.registerServerPlaceholder("%vault-prefix%", -1, () -> "");
+        manager.registerServerPlaceholder("%vault-suffix%", -1, () -> "");
+        if (Bukkit.getPluginManager().isPluginEnabled("Vault")) {
+            RegisteredServiceProvider<Chat> rspChat = Bukkit.getServicesManager().getRegistration(Chat.class);
+            if (rspChat != null) {
+                Chat chat = rspChat.getProvider();
+                manager.registerPlayerPlaceholder("%vault-prefix%", 1000, p -> chat.getPlayerPrefix((Player) p.getPlayer()));
+                manager.registerPlayerPlaceholder("%vault-suffix%", 1000, p -> chat.getPlayerSuffix((Player) p.getPlayer()));
+            }
+        }
+        // Override for the PAPI placeholder to prevent console errors on unsupported server versions when ping field changes
+        manager.registerPlayerPlaceholder("%player_ping%", manager.getRefreshInterval("%player_ping%"),
+                p -> ((TabPlayer)p).getPing());
+        BackendPlatform.super.registerPlaceholders();
+    }
+
+    @Override
+    @Nullable
+    public PipelineInjector createPipelineInjector() {
+        return NMSStorage.getInstance().getMinorVersion() >= 8 ? new BukkitPipelineInjector() : null;
+    }
+
+    @Override
+    @NotNull
+    public NameTag getUnlimitedNameTags() {
+        return new BukkitNameTagX(plugin);
+    }
+
+    @Override
+    @NotNull
+    public TabExpansion createTabExpansion() {
+        if (placeholderAPI) {
+            BukkitTabExpansion expansion = new BukkitTabExpansion();
+            expansion.register();
+            return expansion;
+        }
+        return new EmptyTabExpansion();
+    }
+
+    @Override
+    @Nullable
+    public TabFeature getPerWorldPlayerList() {
+        return new PerWorldPlayerList(plugin);
+    }
+
+    @Override
+    public void registerUnknownPlaceholder(@NotNull String identifier) {
+        if (!placeholderAPI) {
+            TAB.getInstance().getPlaceholderManager().registerServerPlaceholder(identifier, -1, () -> identifier);
+            return;
+        }
+        PlaceholderManagerImpl pl = TAB.getInstance().getPlaceholderManager();
+        int refresh = pl.getRefreshInterval(identifier);
+        if (identifier.startsWith("%rel_")) {
+            //relational placeholder
+            TAB.getInstance().getPlaceholderManager().registerRelationalPlaceholder(identifier, pl.getRefreshInterval(identifier), (viewer, target) ->
+                    PlaceholderAPI.setRelationalPlaceholders((Player) viewer.getPlayer(), (Player) target.getPlayer(), identifier));
+        } else if (identifier.startsWith("%sync:")) {
+            registerSyncPlaceholder(identifier, refresh);
+        } else if (identifier.startsWith("%server_")) {
+            TAB.getInstance().getPlaceholderManager().registerServerPlaceholder(identifier, refresh,
+                    () -> PlaceholderAPI.setPlaceholders(null, identifier));
+        } else {
+            TAB.getInstance().getPlaceholderManager().registerPlayerPlaceholder(identifier, refresh,
+                    p -> PlaceholderAPI.setPlaceholders((Player) p.getPlayer(), identifier));
+        }
+    }
+
+    public void registerSyncPlaceholder(@NotNull String identifier, int refresh) {
+        String syncedPlaceholder = "%" + identifier.substring(6);
+        PlayerPlaceholderImpl[] ppl = new PlayerPlaceholderImpl[1];
+        ppl[0] = TAB.getInstance().getPlaceholderManager().registerPlayerPlaceholder(identifier, refresh, p -> {
+            Bukkit.getScheduler().runTask(plugin, () -> {
+                long time = System.nanoTime();
+                ppl[0].updateValue(p, placeholderAPI ? PlaceholderAPI.setPlaceholders((Player) p.getPlayer(), syncedPlaceholder) : identifier);
+                TAB.getInstance().getCPUManager().addPlaceholderTime(identifier, System.nanoTime()-time);
+            });
+            return null;
+        });
+    }
+
+    @Override
+    public void logInfo(@NotNull IChatBaseComponent message) {
+        Bukkit.getConsoleSender().sendMessage("[TAB] " + BukkitUtils.toBukkitFormat(message, true));
+    }
+
+    @Override
+    public void logWarn(@NotNull IChatBaseComponent message) {
+        Bukkit.getConsoleSender().sendMessage(EnumChatFormat.RED.getFormat() + "[TAB] [WARN] " + BukkitUtils.toBukkitFormat(message, true));
+    }
+
+    @Override
+    @NotNull
+    public String getServerVersionInfo() {
+        return "[Bukkit] " + Bukkit.getName() + " - " +
+                Bukkit.getBukkitVersion().split("-")[0] +
+                " (" + Bukkit.getServer().getClass().getPackage().getName().split("\\.")[3] + ")";
+    }
+
+    @Override
+    public void registerListener() {
+        Bukkit.getPluginManager().registerEvents(new BukkitEventListener(), plugin);
+    }
+
+    @Override
+    public void registerCommand() {
+        PluginCommand command = Bukkit.getPluginCommand(TabConstants.COMMAND_BACKEND);
+        if (command != null) {
+            BukkitTabCommand cmd = new BukkitTabCommand();
+            command.setExecutor(cmd);
+            command.setTabCompleter(cmd);
+        } else {
+            logWarn(new IChatBaseComponent("Failed to register command, is it defined in plugin.yml?"));
+        }
+    }
+
+    @Override
+    public void startMetrics() {
+        Metrics metrics = new Metrics(plugin, 5304);
+        metrics.addCustomChart(new SimplePie(TabConstants.MetricsChart.UNLIMITED_NAME_TAG_MODE_ENABLED,
+                () -> TAB.getInstance().getFeatureManager().isFeatureEnabled(TabConstants.Feature.UNLIMITED_NAME_TAGS) ? "Yes" : "No"));
+        metrics.addCustomChart(new SimplePie(TabConstants.MetricsChart.PERMISSION_SYSTEM,
+                () -> TAB.getInstance().getGroupManager().getPermissionPlugin()));
+        metrics.addCustomChart(new SimplePie(TabConstants.MetricsChart.SERVER_VERSION,
+                () -> "1." + TAB.getInstance().getServerVersion().getMinorVersion() + ".x"));
+    }
+
+    @Override
+    @NotNull
+    public ProtocolVersion getServerVersion() {
+        return ProtocolVersion.fromFriendlyName(Bukkit.getBukkitVersion().split("-")[0]);
+    }
+
+    @Override
+    @NotNull
+    public File getDataFolder() {
+        return plugin.getDataFolder();
+    }
+
+    @Override
+    public Object toComponent(@NotNull IChatBaseComponent component, @NotNull ProtocolVersion version) {
+        return NMSStorage.getInstance().componentCache.get(component, version);
+    }
+
+    @Override
+    @NotNull
+    public GroupManager detectPermissionPlugin() {
+        if (LuckPermsHook.getInstance().isInstalled()) {
+            return new GroupManager("LuckPerms", LuckPermsHook.getInstance().getGroupFunction());
+        }
+        if (Bukkit.getPluginManager().isPluginEnabled("Vault")) {
+            RegisteredServiceProvider<Permission> provider = Bukkit.getServicesManager().getRegistration(Permission.class);
+            if (provider != null && !provider.getProvider().getName().equals("SuperPerms")) {
+                return new GroupManager(provider.getProvider().getName(), p -> provider.getProvider().getPrimaryGroup((Player) p.getPlayer()));
+            }
+        }
+        return new GroupManager("None", p -> TabConstants.NO_GROUP);
+    }
+
+    @Override
+    @SneakyThrows
+    public double getTPS() {
+        if (paperTps) {
+            return Bukkit.getTPS()[0];
+        } else if (spigotTps != null) {
+            return ((double[]) spigotTps.get(server))[0];
+        } else {
+            return -1;
+        }
+    }
+
+    @Override
+    public double getMSPT() {
+       if (paperMspt) return Bukkit.getAverageTickTime();
+       return -1;
+    }
+
+    public void runEntityTask(@NotNull Entity entity, @NotNull Runnable task) {
+        task.run();
+    }
+}

bukkit/src/main/java/me/neznamy/tab/platforms/bukkit/platform/FoliaPlatform.java

@@ -0,0 +1,90 @@
+package me.neznamy.tab.platforms.bukkit.platform;
+
+import lombok.SneakyThrows;
+import me.clip.placeholderapi.PlaceholderAPI;
+import me.neznamy.tab.platforms.bukkit.features.PerWorldPlayerList;
+import me.neznamy.tab.shared.TAB;
+import me.neznamy.tab.shared.TabConstants;
+import me.neznamy.tab.shared.chat.IChatBaseComponent;
+import me.neznamy.tab.shared.placeholders.PlayerPlaceholderImpl;
+import me.neznamy.tab.shared.platform.TabPlayer;
+import org.bukkit.entity.Entity;
+import org.bukkit.entity.Player;
+import org.bukkit.event.player.PlayerChangedWorldEvent;
+import org.bukkit.plugin.Plugin;
+import org.bukkit.plugin.java.JavaPlugin;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.function.Consumer;
+
+/**
+ * Platform override for Folia
+ */
+public class FoliaPlatform extends BukkitPlatform {
+
+    public FoliaPlatform(@NotNull JavaPlugin plugin) {
+        super(plugin);
+    }
+
+    @Override
+    public void loadPlayers() {
+        super.loadPlayers();
+
+        // Values are never updated in the API, warn users
+        logWarn(new IChatBaseComponent("Folia never updates MSPT and TPS values in the API, making " +
+                "%mspt% and %tps% return the default values (0 and 20)."));
+
+        // Folia never calls PlayerChangedWorldEvent, this is a workaround
+        TAB.getInstance().getCPUManager().startRepeatingMeasuredTask(100, "Folia compatibility", "Refreshing world", () -> {
+            for (TabPlayer player : TAB.getInstance().getOnlinePlayers()) {
+                String bukkitWorld = ((Player)player.getPlayer()).getWorld().getName();
+                if (!player.getWorld().equals(bukkitWorld)) {
+                    TAB.getInstance().getFeatureManager().onWorldChange(player.getUniqueId(), bukkitWorld);
+                    PerWorldPlayerList pwp = TAB.getInstance().getFeatureManager().getFeature(TabConstants.Feature.PER_WORLD_PLAYER_LIST);
+                    if (pwp != null) {
+                        runSync((Entity) player.getPlayer(), () -> pwp.onWorldChange(new PlayerChangedWorldEvent((Player) player.getPlayer(), ((Player) player.getPlayer()).getWorld())));
+                    }
+                }
+            }
+        });
+    }
+
+    @Override
+    public void registerSyncPlaceholder(@NotNull String identifier, int refresh) {
+        String syncedPlaceholder = "%" + identifier.substring(6);
+        PlayerPlaceholderImpl[] ppl = new PlayerPlaceholderImpl[1];
+        ppl[0] = TAB.getInstance().getPlaceholderManager().registerPlayerPlaceholder(identifier, refresh, p -> {
+            runSync((Entity) p.getPlayer(), () -> {
+                long time = System.nanoTime();
+                String output = isPlaceholderAPI() ? PlaceholderAPI.setPlaceholders((Player) p.getPlayer(), syncedPlaceholder) : identifier;
+                TAB.getInstance().getCPUManager().addPlaceholderTime(identifier, System.nanoTime()-time);
+                TAB.getInstance().getCPUManager().runTask(() -> ppl[0].updateValue(p, output)); // To ensure player is loaded
+            });
+            return null;
+        });
+    }
+
+    /**
+     * Runs task using player's entity scheduler. It's using reflection, because
+     * Folia uses Java 17 while TAB maintains Java 8 compatibility for compatibility
+     * with MC versions older than their player base.
+     *
+     * @param   entity
+     *          entity to run task for
+     * @param   task
+     *          Task to run
+     */
+    @SneakyThrows
+    @SuppressWarnings("JavaReflectionMemberAccess")
+    private void runSync(@NotNull Entity entity, @NotNull Runnable task) {
+        Object entityScheduler = Entity.class.getMethod("getScheduler").invoke(entity);
+        Consumer<?> consumer = $ -> task.run(); // Reflection and lambdas don't go together
+        entityScheduler.getClass().getMethod("run", Plugin.class, Consumer.class, Runnable.class)
+                .invoke(entityScheduler, getPlugin(), consumer, null);
+    }
+
+    @Override
+    public void runEntityTask(@NotNull Entity entity, @NotNull Runnable task) {
+        runSync(entity, task);
+    }
+}

bukkit/src/main/java/me/neznamy/tab/platforms/bukkit/scoreboard/BukkitScoreboard.java

@@ -0,0 +1,219 @@
+package me.neznamy.tab.platforms.bukkit.scoreboard;
+
+import lombok.Getter;
+import me.neznamy.tab.platforms.bukkit.BukkitTabPlayer;
+import me.neznamy.tab.platforms.bukkit.BukkitUtils;
+import me.neznamy.tab.platforms.bukkit.nms.BukkitReflection;
+import me.neznamy.tab.shared.ProtocolVersion;
+import me.neznamy.tab.shared.TAB;
+import me.neznamy.tab.shared.chat.EnumChatFormat;
+import me.neznamy.tab.shared.chat.IChatBaseComponent;
+import me.neznamy.tab.shared.platform.Scoreboard;
+import me.neznamy.tab.shared.util.ReflectionUtils;
+import org.bukkit.Bukkit;
+import org.bukkit.ChatColor;
+import org.bukkit.scoreboard.NameTagVisibility;
+import org.bukkit.scoreboard.Objective;
+import org.bukkit.scoreboard.RenderType;
+import org.bukkit.scoreboard.Team;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.Collection;
+
+/**
+ * Scoreboard implementation using Bukkit API (1.5.2+). It has several issues:
+ * #1 - Limitations on legacy versions are forced in the API.
+ *      While this may not seem like a problem, it enforces those
+ *      limits even for 1.13+ players (if using ViaVersion).<p>
+ * #2 - Modern versions no longer have any limits, but md_5
+ *      decided to add some random limits for absolutely no reason
+ *      at all. Scoreboard title received a random 128 characters
+ *      limit including color codes. Together with the almighty bukkit
+ *      RGB format using 14 characters for 1 color code, this makes
+ *      gradients just impossible to use. Team prefix/suffix also
+ *      received a 64 characters limit (excluding color codes at least),
+ *      however that might not be enough for displaying a line of text
+ *      in sidebar, which would require splitting the text into prefix
+ *      and suffix, which is just begging for bugs to be introduced.<p>
+ * #3 - Other plugins can decide to put players into their own
+ *      scoreboard, automatically destroying all visuals made by the
+ *      plugin. They might also put all players into the same scoreboard,
+ *      making per-player view of teams, especially sidebar not working.<p>
+ */
+// Throw the NPE if something is not as expected, parent class should ensure it anyway
+@SuppressWarnings({"ConstantConditions", "deprecation"})
+public class BukkitScoreboard extends Scoreboard<BukkitTabPlayer> {
+
+    /** Flag tracking whether this implementation is available for use */
+    @Getter
+    private static final boolean available = ReflectionUtils.methodExists(Bukkit.class, "getScoreboardManager");
+
+    /** Server's minor version */
+    private final int serverMinorVersion = BukkitReflection.getMinorVersion();
+
+    @NotNull
+    protected final org.bukkit.scoreboard.Scoreboard scoreboard = Bukkit.getScoreboardManager().getNewScoreboard();
+
+    public BukkitScoreboard(@NotNull BukkitTabPlayer player) {
+        super(player);
+
+        // Put player into a different scoreboard for per-player view
+        player.getPlayer().setScoreboard(scoreboard);
+    }
+
+    @Override
+    public void setDisplaySlot(@NotNull DisplaySlot slot, @NotNull String objective) {
+        checkPlayerScoreboard();
+        scoreboard.getObjective(objective).setDisplaySlot(org.bukkit.scoreboard.DisplaySlot.valueOf(slot.name()));
+    }
+
+    @Override
+    public void setScore0(@NotNull String objective, @NotNull String playerName, int score) {
+        checkPlayerScoreboard();
+        if (serverMinorVersion >= 7 && TAB.getInstance().getServerVersion().getNetworkId() >= ProtocolVersion.V1_7_8.getNetworkId()) {
+            scoreboard.getObjective(objective).getScore(playerName).setScore(score);
+        } else {
+            scoreboard.getObjective(objective).getScore(Bukkit.getOfflinePlayer(playerName)).setScore(score);
+        }
+    }
+
+    @Override
+    public void removeScore0(@NotNull String objective, @NotNull String playerName) {
+        checkPlayerScoreboard();
+        if (serverMinorVersion >= 7 && TAB.getInstance().getServerVersion().getNetworkId() >= ProtocolVersion.V1_7_8.getNetworkId()) {
+            scoreboard.resetScores(playerName);
+        } else {
+            scoreboard.resetScores(Bukkit.getOfflinePlayer(playerName));
+        }
+    }
+
+    @Override
+    public void registerObjective0(@NotNull String objectiveName, @NotNull String title, @NotNull HealthDisplay display) {
+        checkPlayerScoreboard();
+        newObjective(objectiveName, "dummy", title, display);
+    }
+
+    @Override
+    public void unregisterObjective0(@NotNull String objectiveName) {
+        checkPlayerScoreboard();
+        scoreboard.getObjective(objectiveName).unregister();
+    }
+
+    @Override
+    public void updateObjective0(@NotNull String objectiveName, @NotNull String title, @NotNull HealthDisplay display) {
+        checkPlayerScoreboard();
+        Objective obj = scoreboard.getObjective(objectiveName);
+        setDisplayName(obj, title);
+        if (serverMinorVersion >= 14) obj.setRenderType(RenderType.valueOf(display.name()));
+    }
+
+    @Override
+    public void registerTeam0(@NotNull String name, @NotNull String prefix, @NotNull String suffix,
+                              @NotNull NameVisibility visibility, @NotNull CollisionRule collision,
+                              @NotNull Collection<String> players, int options) {
+        checkPlayerScoreboard();
+        Team team = scoreboard.registerNewTeam(name);
+        setPrefix(team, prefix);
+        setSuffix(team, suffix);
+        if (serverMinorVersion >= 8)
+            team.setNameTagVisibility(NameTagVisibility.valueOf(visibility.name()));
+        if (serverMinorVersion >= 9)
+            team.setOption(Team.Option.COLLISION_RULE, Team.OptionStatus.values()[collision.ordinal()]);
+        if (serverMinorVersion >= 13)
+            team.setColor(ChatColor.valueOf(EnumChatFormat.lastColorsOf(prefix).name()));
+        if (serverMinorVersion >= 7 && TAB.getInstance().getServerVersion().getNetworkId() >= ProtocolVersion.V1_7_8.getNetworkId()) {
+            players.forEach(team::addEntry);
+        } else {
+            players.forEach(player -> team.addPlayer(Bukkit.getOfflinePlayer(player)));
+        }
+        team.setAllowFriendlyFire((options & 0x01) != 0);
+        team.setCanSeeFriendlyInvisibles((options & 0x02) != 0);
+    }
+
+    @Override
+    public void unregisterTeam0(@NotNull String name) {
+        checkPlayerScoreboard();
+        scoreboard.getTeam(name).unregister();
+    }
+
+    @Override
+    public void updateTeam0(@NotNull String name, @NotNull String prefix, @NotNull String suffix,
+                            @NotNull NameVisibility visibility, @NotNull CollisionRule collision, int options) {
+        checkPlayerScoreboard();
+        Team team = scoreboard.getTeam(name);
+        setPrefix(team, prefix);
+        setSuffix(team, suffix);
+        if (serverMinorVersion >= 8)
+            team.setNameTagVisibility(NameTagVisibility.valueOf(visibility.name()));
+        if (serverMinorVersion >= 9)
+            team.setOption(Team.Option.COLLISION_RULE, Team.OptionStatus.values()[collision.ordinal()]);
+        if (serverMinorVersion >= 13)
+            team.setColor(ChatColor.valueOf(EnumChatFormat.lastColorsOf(prefix).name()));
+        team.setAllowFriendlyFire((options & 0x01) != 0);
+        team.setCanSeeFriendlyInvisibles((options & 0x02) != 0);
+    }
+
+    public void newObjective(String objectiveName, String criteria, String title, @NotNull HealthDisplay display) {
+        if (serverMinorVersion >= 14) {
+            scoreboard.registerNewObjective(objectiveName, criteria, transform(title, 128, 32), RenderType.valueOf(display.name()));
+        } else {
+            setDisplayName(scoreboard.registerNewObjective(objectiveName, display == HealthDisplay.HEARTS ? "health" : "dummy"), title);
+        }
+    }
+
+    public void setDisplayName(@NotNull Objective objective, @NotNull String displayName) {
+        objective.setDisplayName(transform(displayName, 128, 32));
+    }
+
+    public void setPrefix(@NotNull Team team, @NotNull String prefix) {
+        team.setPrefix(transform(prefix, 64, 16));
+    }
+
+    public void setSuffix(@NotNull Team team, @NotNull String suffix) {
+        team.setSuffix(transform(suffix, 64, 16));
+    }
+
+    /**
+     * Transforms text into format using bukkit RGB syntax if server version is 1.16+
+     *
+     * @param   text
+     *          Text to transform
+     * @param   maxLengthModern
+     *          Maximum text length defined by bukkit API on 1.13+
+     * @param   maxLengthLegacy
+     *          Maximum text length defined by bukkit API on 1.12-
+     * @return  Converted text
+     */
+    @NotNull
+    private String transform(@NotNull String text, int maxLengthModern, int maxLengthLegacy) {
+        String transformed = BukkitUtils.toBukkitFormat(IChatBaseComponent.optimizedComponent(text), player.getVersion().getMinorVersion() >= 16);
+        if (serverMinorVersion >= 16 && maxLengthModern < 128) { // Scoreboard title is not stripping colors
+            while (ChatColor.stripColor(transformed).length() > maxLengthModern)
+                transformed = transformed.substring(0, transformed.length()-1);
+        } else if (serverMinorVersion >= 13) {
+            if (transformed.length() > maxLengthModern)
+                transformed = transformed.substring(0, maxLengthModern);
+        } else {
+            if (transformed.length() > maxLengthLegacy)
+                transformed = transformed.substring(0, maxLengthLegacy);
+        }
+        return transformed;
+    }
+
+    /**
+     * Makes sure player is in the correct scoreboard.
+     * If not, puts the player into correct scoreboard and prints
+     * a warning.
+     * The only possible reason for this to happen is another plugin
+     * putting a player into a different scoreboard.
+     * Sadly there is no efficient solution to this, which md_5 fails
+     * to understand and keeps saying you don't need packets for scoreboards.
+     */
+    private void checkPlayerScoreboard() {
+        if (player.getPlayer().getScoreboard() != scoreboard) {
+            player.getPlayer().setScoreboard(scoreboard);
+            TAB.getInstance().getErrorManager().printError("Player " + player.getName() + " was in a different scoreboard " +
+                    "than expected. This means another plugin changed player's scoreboard.");
+        }
+    }
+}

bukkit/src/main/java/me/neznamy/tab/platforms/bukkit/scoreboard/PacketScoreboard.java

@@ -1,9 +1,9 @@
 package me.neznamy.tab.platforms.bukkit.scoreboard;
 
+import lombok.Getter;
 import lombok.SneakyThrows;
 import me.neznamy.tab.platforms.bukkit.BukkitTabPlayer;
-import me.neznamy.tab.platforms.bukkit.nms.storage.nms.NMSStorage;
-import me.neznamy.tab.shared.TAB;
+import me.neznamy.tab.platforms.bukkit.nms.BukkitReflection;
 import me.neznamy.tab.shared.chat.EnumChatFormat;
 import me.neznamy.tab.shared.chat.IChatBaseComponent;
 import me.neznamy.tab.shared.platform.Scoreboard;
@@ -16,37 +16,19 @@ import java.lang.reflect.Method;
 import java.util.Collection;
 import java.util.List;
 
+import static me.neznamy.tab.platforms.bukkit.nms.BukkitReflection.getLegacyClass;
+
 /**
  * Scoreboard implementation for Bukkit, which uses packets
- * to send scoreboards. While md_5 keeps saying that you don't
- * need packets for scoreboards in every single spigot update,
- * this is not true. It may seem that way at first, but after
- * investigating, fatal problems are found:<p>
- * #1 - Limitations on legacy versions are forced in the API.
- *      While this may not seem like a problem, it enforces those
- *      limits even for 1.13+ players (if using ViaVersion).<p>
- * #2 - Modern versions no longer have any limits, but md_5
- *      decided to add some random limits for absolutely no reason
- *      at all. Scoreboard title received a random 128 characters
- *      limit including color codes. Together with the almighty bukkit
- *      RGB format using 14 characters for 1 color code, this makes
- *      gradients just impossible to use. Team prefix/suffix also
- *      received a 64 characters limit (excluding color codes at least),
- *      however that might not be enough for displaying a line of text
- *      in sidebar, which would require splitting the text into prefix
- *      and suffix, which is just begging for bugs to be introduced.<p>
- * #3 - Other plugins can decide to put players into their own
- *      scoreboard, automatically destroying all visuals made by the
- *      plugin. They might also put all players into the same scoreboard,
- *      making per-player view of teams, especially sidebar not working.<p>
+ * to send scoreboards to use the full potential on all versions
+ * and server software without any artificial limits.
  */
 @SuppressWarnings({"unchecked", "rawtypes"})
 public class PacketScoreboard extends Scoreboard<BukkitTabPlayer> {
 
-    private static NMSStorage nms;
+    @Getter
+    private static boolean available;
 
-    public static Class<?> Scoreboard;
-    public static Class<?> IScoreboardCriteria;
     private static Object emptyScoreboard;
     private static Field IScoreboardCriteria_self;
 
@@ -55,16 +37,15 @@ public class PacketScoreboard extends Scoreboard<BukkitTabPlayer> {
     private static Constructor<?> newDisplayObjective;
     public static Field DisplayObjective_POSITION;
     public static Field DisplayObjective_OBJECTIVE_NAME;
+    public static Enum[] DisplaySlot_values;
 
     // PacketPlayOutScoreboardScore
-    public static Class<?> ScorePacketClass;
-    public static Class<?> ScoreboardScoreClass;
-    public static Class<Enum> EnumScoreboardAction;
+    private static Class<Enum> EnumScoreboardAction;
     private static Constructor<?> newScorePacket_1_13;
     private static Constructor<?> newScorePacket_String;
     private static Constructor<?> newScorePacket;
     private static Constructor<?> newScoreboardScore;
-    public static Method ScoreboardScore_setScore;
+    private static Method ScoreboardScore_setScore;
 
     // PacketPlayOutScoreboardObjective
     public static Class<?> ObjectivePacketClass;
@@ -73,8 +54,7 @@ public class PacketScoreboard extends Scoreboard<BukkitTabPlayer> {
     public static Field Objective_METHOD;
     private static Field Objective_RENDER_TYPE;
     private static Field Objective_DISPLAY_NAME;
-    public static Class<Enum> EnumScoreboardHealthDisplay;
-    public static Class<?> ScoreboardObjective;
+    private static Class<Enum> EnumScoreboardHealthDisplay;
     private static Constructor<?> newScoreboardObjective;
 
     // PacketPlayOutScoreboardTeamStorage
@@ -85,113 +65,207 @@ public class PacketScoreboard extends Scoreboard<BukkitTabPlayer> {
     public static Field TeamPacket_NAME;
     public static Field TeamPacket_ACTION;
     public static Field TeamPacket_PLAYERS;
-    public static Class<Enum> EnumNameTagVisibility;
-    public static Class<Enum> EnumTeamPush;
-    public static Class<?> ScoreboardTeam;
+    private static Class<Enum> EnumNameTagVisibility;
+    private static Class<Enum> EnumTeamPush;
+    private static Class<Enum> EnumChatFormatClass;
     private static Constructor<?> newScoreboardTeam;
     private static Method ScoreboardTeam_getPlayerNameSet;
-    public static Method ScoreboardTeam_setNameTagVisibility;
+    private static Method ScoreboardTeam_setNameTagVisibility;
     private static Method ScoreboardTeam_setCollisionRule;
-    public static Method ScoreboardTeam_setPrefix;
-    public static Method ScoreboardTeam_setSuffix;
+    private static Method ScoreboardTeam_setPrefix;
+    private static Method ScoreboardTeam_setSuffix;
     private static Method ScoreboardTeam_setColor;
-    public static Method ScoreboardTeam_setAllowFriendlyFire;
-    public static Method ScoreboardTeam_setCanSeeFriendlyInvisibles;
+    private static Method ScoreboardTeam_setAllowFriendlyFire;
+    private static Method ScoreboardTeam_setCanSeeFriendlyInvisibles;
 
-    public static void load(NMSStorage nms) throws ReflectiveOperationException {
-        PacketScoreboard.nms = nms;
-        emptyScoreboard = Scoreboard.getConstructor().newInstance();
+    public static void load() throws ReflectiveOperationException {
+        int minorVersion = BukkitReflection.getMinorVersion();
+        Class<?> scoreboardTeam;
+        Class<?> scoreboardObjective;
+        Class<?> scoreboardScoreClass;
+        Class<?> IScoreboardCriteria;
+        Class<?> scoreboard;
+        Class<?> scorePacketClass;
+        Class<?> IChatBaseComponent = null;
+        if (BukkitReflection.isMojangMapped()) {
+            IChatBaseComponent = Class.forName("net.minecraft.network.chat.Component");
+            EnumChatFormatClass = (Class<Enum>) Class.forName("net.minecraft.ChatFormatting");
+            DisplayObjectiveClass = Class.forName("net.minecraft.network.protocol.game.ClientboundSetDisplayObjectivePacket");
+            ObjectivePacketClass = Class.forName("net.minecraft.network.protocol.game.ClientboundSetObjectivePacket");
+            scoreboard = Class.forName("net.minecraft.world.scores.Scoreboard");
+            scorePacketClass = Class.forName("net.minecraft.network.protocol.game.ClientboundSetScorePacket");
+            scoreboardObjective = Class.forName("net.minecraft.world.scores.Objective");
+            scoreboardScoreClass = Class.forName("net.minecraft.world.scores.Score");
+            IScoreboardCriteria = Class.forName("net.minecraft.world.scores.criteria.ObjectiveCriteria");
+            EnumScoreboardHealthDisplay = (Class<Enum>) Class.forName("net.minecraft.world.scores.criteria.ObjectiveCriteria$RenderType");
+            EnumScoreboardAction = (Class<Enum>) Class.forName("net.minecraft.server.ServerScoreboard$Method");
+            TeamPacketClass = Class.forName("net.minecraft.network.protocol.game.ClientboundSetPlayerTeamPacket");
+            scoreboardTeam = Class.forName("net.minecraft.world.scores.PlayerTeam");
+            EnumNameTagVisibility = (Class<Enum>) Class.forName("net.minecraft.world.scores.Team$Visibility");
+            EnumTeamPush = (Class<Enum>) Class.forName("net.minecraft.world.scores.Team$CollisionRule");
+        } else if (minorVersion >= 17) {
+            IChatBaseComponent = Class.forName("net.minecraft.network.chat.IChatBaseComponent");
+            EnumChatFormatClass = (Class<Enum>) Class.forName("net.minecraft.EnumChatFormat");
+            DisplayObjectiveClass = Class.forName("net.minecraft.network.protocol.game.PacketPlayOutScoreboardDisplayObjective");
+            ObjectivePacketClass = Class.forName("net.minecraft.network.protocol.game.PacketPlayOutScoreboardObjective");
+            scoreboard = Class.forName("net.minecraft.world.scores.Scoreboard");
+            scorePacketClass = Class.forName("net.minecraft.network.protocol.game.PacketPlayOutScoreboardScore");
+            scoreboardObjective = Class.forName("net.minecraft.world.scores.ScoreboardObjective");
+            scoreboardScoreClass = Class.forName("net.minecraft.world.scores.ScoreboardScore");
+            IScoreboardCriteria = Class.forName("net.minecraft.world.scores.criteria.IScoreboardCriteria");
+            EnumScoreboardHealthDisplay = (Class<Enum>) Class.forName("net.minecraft.world.scores.criteria.IScoreboardCriteria$EnumScoreboardHealthDisplay");
+            EnumScoreboardAction = (Class<Enum>) Class.forName("net.minecraft.server.ScoreboardServer$Action");
+            TeamPacketClass = Class.forName("net.minecraft.network.protocol.game.PacketPlayOutScoreboardTeam");
+            scoreboardTeam = Class.forName("net.minecraft.world.scores.ScoreboardTeam");
+            EnumNameTagVisibility = (Class<Enum>) Class.forName("net.minecraft.world.scores.ScoreboardTeamBase$EnumNameTagVisibility");
+            EnumTeamPush = (Class<Enum>) Class.forName("net.minecraft.world.scores.ScoreboardTeamBase$EnumTeamPush");
+        } else {
+            EnumChatFormatClass = (Class<Enum>) getLegacyClass("EnumChatFormat");
+            DisplayObjectiveClass = getLegacyClass("PacketPlayOutScoreboardDisplayObjective", "Packet208SetScoreboardDisplayObjective");
+            ObjectivePacketClass = getLegacyClass("PacketPlayOutScoreboardObjective", "Packet206SetScoreboardObjective");
+            TeamPacketClass = getLegacyClass("PacketPlayOutScoreboardTeam", "Packet209SetScoreboardTeam");
+            scorePacketClass = getLegacyClass("PacketPlayOutScoreboardScore", "Packet207SetScoreboardScore");
+            scoreboard = getLegacyClass("Scoreboard");
+            scoreboardObjective = getLegacyClass("ScoreboardObjective");
+            scoreboardScoreClass = getLegacyClass("ScoreboardScore");
+            IScoreboardCriteria = getLegacyClass("IScoreboardCriteria", "IObjective"); // 1.5.1+, 1.5
+            scoreboardTeam = getLegacyClass("ScoreboardTeam");
+            if (minorVersion >= 7) {
+                IChatBaseComponent = getLegacyClass("IChatBaseComponent");
+            }
+            if (minorVersion >= 8) {
+                EnumScoreboardHealthDisplay = (Class<Enum>) getLegacyClass("IScoreboardCriteria$EnumScoreboardHealthDisplay", "EnumScoreboardHealthDisplay");
+                EnumScoreboardAction = (Class<Enum>) getLegacyClass("ScoreboardServer$Action", "PacketPlayOutScoreboardScore$EnumScoreboardAction", "EnumScoreboardAction");
+                EnumNameTagVisibility = (Class<Enum>) getLegacyClass("ScoreboardTeamBase$EnumNameTagVisibility", "EnumNameTagVisibility");
+            }
+            if (minorVersion >= 9) {
+                EnumTeamPush = (Class<Enum>) getLegacyClass("ScoreboardTeamBase$EnumTeamPush");
+            }
+        }
+        emptyScoreboard = scoreboard.getConstructor().newInstance();
         IScoreboardCriteria_self = ReflectionUtils.getFields(IScoreboardCriteria, IScoreboardCriteria).get(0);
-        newDisplayObjective = DisplayObjectiveClass.getConstructor(int.class, ScoreboardObjective);
-        DisplayObjective_POSITION = ReflectionUtils.getOnlyField(DisplayObjectiveClass, int.class);
+        if (BukkitReflection.is1_20_2Plus()) {
+            Class<?> DisplaySlot = Class.forName("net.minecraft.world.scores.DisplaySlot");
+            DisplayObjective_POSITION = ReflectionUtils.getOnlyField(DisplayObjectiveClass, DisplaySlot);
+            newDisplayObjective = DisplayObjectiveClass.getConstructor(DisplaySlot, scoreboardObjective);
+            DisplaySlot_values = (Enum[]) DisplaySlot.getDeclaredMethod("values").invoke(null);
+        } else {
+            DisplayObjective_POSITION = ReflectionUtils.getOnlyField(DisplayObjectiveClass, int.class);
+            newDisplayObjective = DisplayObjectiveClass.getConstructor(int.class, scoreboardObjective);
+        }
         DisplayObjective_OBJECTIVE_NAME = ReflectionUtils.getOnlyField(DisplayObjectiveClass, String.class);
-        newScoreboardObjective = ReflectionUtils.getOnlyConstructor(ScoreboardObjective);
+        newScoreboardObjective = ReflectionUtils.getOnlyConstructor(scoreboardObjective);
         Objective_OBJECTIVE_NAME = ReflectionUtils.getFields(ObjectivePacketClass, String.class).get(0);
         List<Field> list = ReflectionUtils.getFields(ObjectivePacketClass, int.class);
         Objective_METHOD = list.get(list.size()-1);
-        newScoreboardScore = ScoreboardScoreClass.getConstructor(Scoreboard, ScoreboardObjective, String.class);
-        newScoreboardTeam = ScoreboardTeam.getConstructor(Scoreboard, String.class);
+        newScoreboardScore = scoreboardScoreClass.getConstructor(scoreboard, scoreboardObjective, String.class);
+        newScoreboardTeam = scoreboardTeam.getConstructor(scoreboard, String.class);
         TeamPacket_NAME = ReflectionUtils.getFields(TeamPacketClass, String.class).get(0);
         TeamPacket_ACTION = ReflectionUtils.getInstanceFields(TeamPacketClass, int.class).get(0);
         TeamPacket_PLAYERS = ReflectionUtils.getOnlyField(TeamPacketClass, Collection.class);
-        ScoreboardTeam_getPlayerNameSet = ReflectionUtils.getOnlyMethod(ScoreboardTeam, Collection.class);
-        if (nms.getMinorVersion() >= 13) {
-            newScorePacket_1_13 = ScorePacketClass.getConstructor(EnumScoreboardAction, String.class, String.class, int.class);
-            newObjectivePacket = ObjectivePacketClass.getConstructor(ScoreboardObjective, int.class);
-            Objective_DISPLAY_NAME = ReflectionUtils.getOnlyField(ObjectivePacketClass, nms.IChatBaseComponent);
-            ScoreboardTeam_setColor = ReflectionUtils.getOnlyMethod(ScoreboardTeam, void.class, nms.EnumChatFormat);
+        ScoreboardTeam_getPlayerNameSet = ReflectionUtils.getOnlyMethod(scoreboardTeam, Collection.class);
+        if (minorVersion >= 13) {
+            newScorePacket_1_13 = scorePacketClass.getConstructor(EnumScoreboardAction, String.class, String.class, int.class);
+            newObjectivePacket = ObjectivePacketClass.getConstructor(scoreboardObjective, int.class);
+            Objective_DISPLAY_NAME = ReflectionUtils.getOnlyField(ObjectivePacketClass, IChatBaseComponent);
+            ScoreboardTeam_setColor = ReflectionUtils.getOnlyMethod(scoreboardTeam, void.class, EnumChatFormatClass);
         } else {
-            newScorePacket_String = ScorePacketClass.getConstructor(String.class);
+            newScorePacket_String = scorePacketClass.getConstructor(String.class);
             newObjectivePacket = ObjectivePacketClass.getConstructor();
             Objective_DISPLAY_NAME = ReflectionUtils.getFields(ObjectivePacketClass, String.class).get(1);
-            if (nms.getMinorVersion() >= 8) {
-                newScorePacket = ScorePacketClass.getConstructor(ScoreboardScoreClass);
+            if (minorVersion >= 8) {
+                newScorePacket = scorePacketClass.getConstructor(scoreboardScoreClass);
                 Objective_RENDER_TYPE = ReflectionUtils.getOnlyField(ObjectivePacketClass, EnumScoreboardHealthDisplay);
             } else {
-                newScorePacket = ScorePacketClass.getConstructor(ScoreboardScoreClass, int.class);
+                newScorePacket = scorePacketClass.getConstructor(scoreboardScoreClass, int.class);
             }
         }
-        if (nms.getMinorVersion() >= 9) {
-            ScoreboardTeam_setCollisionRule = ReflectionUtils.getOnlyMethod(ScoreboardTeam, void.class, EnumTeamPush);
+        if (minorVersion >= 9) {
+            ScoreboardTeam_setCollisionRule = ReflectionUtils.getOnlyMethod(scoreboardTeam, void.class, EnumTeamPush);
         }
-        if (nms.getMinorVersion() >= 17) {
-            TeamPacketConstructor_of = ReflectionUtils.getOnlyMethod(TeamPacketClass, TeamPacketClass, ScoreboardTeam);
-            TeamPacketConstructor_ofBoolean = ReflectionUtils.getOnlyMethod(TeamPacketClass, TeamPacketClass, ScoreboardTeam, boolean.class);
+        if (minorVersion >= 17) {
+            TeamPacketConstructor_of = ReflectionUtils.getOnlyMethod(TeamPacketClass, TeamPacketClass, scoreboardTeam);
+            TeamPacketConstructor_ofBoolean = ReflectionUtils.getOnlyMethod(TeamPacketClass, TeamPacketClass, scoreboardTeam, boolean.class);
         } else {
-            newTeamPacket = TeamPacketClass.getConstructor(ScoreboardTeam, int.class);
+            newTeamPacket = TeamPacketClass.getConstructor(scoreboardTeam, int.class);
         }
+        if (BukkitReflection.isMojangMapped()) {
+            ScoreboardScore_setScore = scoreboardScoreClass.getMethod("setScore", int.class);
+            ScoreboardTeam_setAllowFriendlyFire = scoreboardTeam.getMethod("setAllowFriendlyFire", boolean.class);
+            ScoreboardTeam_setCanSeeFriendlyInvisibles = scoreboardTeam.getMethod("setSeeFriendlyInvisibles", boolean.class);
+            ScoreboardTeam_setPrefix = scoreboardTeam.getMethod("setPlayerPrefix", IChatBaseComponent);
+            ScoreboardTeam_setSuffix = scoreboardTeam.getMethod("setPlayerSuffix", IChatBaseComponent);
+            ScoreboardTeam_setNameTagVisibility = scoreboardTeam.getMethod("setNameTagVisibility", EnumNameTagVisibility);
+        } else {
+            ScoreboardScore_setScore = ReflectionUtils.getMethod(scoreboardScoreClass, new String[] {"func_96647_c", "setScore", "b", "c", "m_83402_"}, int.class); // {Thermos, 1.5.1 - 1.17.1, 1.18+, 1.5, Mohist 1.18.2}
+            ScoreboardTeam_setAllowFriendlyFire = ReflectionUtils.getMethod(scoreboardTeam, new String[] {"func_96660_a", "setAllowFriendlyFire", "a", "m_83355_"}, boolean.class); // {Thermos, 1.5.1+, 1.5 & 1.18+, Mohist 1.18.2}
+            ScoreboardTeam_setCanSeeFriendlyInvisibles = ReflectionUtils.getMethod(scoreboardTeam, new String[] {"func_98300_b", "setCanSeeFriendlyInvisibles", "b", "m_83362_"}, boolean.class); // {Thermos, 1.5.1+, 1.5 & 1.18+, Mohist 1.18.2}
+            if (minorVersion >= 13) {
+                ScoreboardTeam_setPrefix = ReflectionUtils.getMethod(scoreboardTeam, new String[]{"setPrefix", "b", "m_83360_"}, IChatBaseComponent); // {1.17.1-, 1.18+, Mohist 1.18.2}
+                ScoreboardTeam_setSuffix = ReflectionUtils.getMethod(scoreboardTeam, new String[]{"setSuffix", "c", "m_83365_"}, IChatBaseComponent); // {1.17.1-, 1.18+, Mohist 1.18.2}
+            } else {
+                ScoreboardTeam_setPrefix = ReflectionUtils.getMethod(scoreboardTeam, new String[] {"func_96666_b", "setPrefix", "b"}, String.class); // {Thermos, 1.5.1+, 1.5}
+                ScoreboardTeam_setSuffix = ReflectionUtils.getMethod(scoreboardTeam, new String[] {"func_96662_c", "setSuffix", "c"}, String.class); // {Thermos, 1.5.1+, 1.5}
+            }
+            if (minorVersion >= 8) {
+                ScoreboardTeam_setNameTagVisibility = ReflectionUtils.getMethod(scoreboardTeam, new String[] {"setNameTagVisibility", "a", "m_83346_"}, EnumNameTagVisibility); // {1.8.1+, 1.8 & 1.18+, Mohist 1.18.2}
+            }
+        }
+        available = true;
     }
 
-    public PacketScoreboard(BukkitTabPlayer player) {
+    public PacketScoreboard(@NotNull BukkitTabPlayer player) {
         super(player);
     }
 
     @Override
     @SneakyThrows
     public void setDisplaySlot(@NotNull DisplaySlot slot, @NotNull String objective) {
-        player.sendPacket(newDisplayObjective.newInstance(slot.ordinal(), newScoreboardObjective(objective)));
+        Object displaySlot;
+        if (BukkitReflection.is1_20_2Plus()) {
+            displaySlot = DisplaySlot_values[slot.ordinal()];
+        } else {
+            displaySlot = slot.ordinal();
+        }
+        player.sendPacket(newDisplayObjective.newInstance(displaySlot, newScoreboardObjective(objective)));
     }
 
     @Override
     @SneakyThrows
-    public void registerObjective0(@NotNull String objectiveName, @NotNull String title, boolean hearts) {
-        player.sendPacket(buildObjective(0, objectiveName, title, hearts));
+    public void registerObjective0(@NotNull String objectiveName, @NotNull String title, @NotNull HealthDisplay display) {
+        player.sendPacket(buildObjective(0, objectiveName, title, display));
     }
 
     @Override
     public void unregisterObjective0(@NotNull String objectiveName) {
-        player.sendPacket(buildObjective(1, objectiveName, "", false));
+        player.sendPacket(buildObjective(1, objectiveName, "", HealthDisplay.INTEGER));
     }
 
     @Override
-    public void updateObjective0(@NotNull String objectiveName, @NotNull String title, boolean hearts) {
-        player.sendPacket(buildObjective(2, objectiveName, title, hearts));
+    public void updateObjective0(@NotNull String objectiveName, @NotNull String title, @NotNull HealthDisplay display) {
+        player.sendPacket(buildObjective(2, objectiveName, title, display));
     }
 
     @SneakyThrows
-    private Object buildObjective(int action, String objectiveName, String title, boolean hearts) {
-        if (nms.getMinorVersion() >= 13) {
+    private Object buildObjective(int action, String objectiveName, String title, @NotNull HealthDisplay display) {
+        if (BukkitReflection.getMinorVersion() >= 13) {
             return newObjectivePacket.newInstance(
                     newScoreboardObjective.newInstance(null, objectiveName, null,
-                    nms.toNMSComponent(IChatBaseComponent.optimizedComponent(title), player.getVersion()),
-                    asDisplayType(hearts)),
+                            toComponent(IChatBaseComponent.optimizedComponent(title)),
+                            Enum.valueOf(EnumScoreboardHealthDisplay, display.name())),
                     action
             );
         }
         Object nmsPacket = newObjectivePacket.newInstance();
         Objective_OBJECTIVE_NAME.set(nmsPacket, objectiveName);
         Objective_DISPLAY_NAME.set(nmsPacket, title);
-        if (nms.getMinorVersion() >= 8) {
-            Objective_RENDER_TYPE.set(nmsPacket, asDisplayType(hearts));
+        if (BukkitReflection.getMinorVersion() >= 8) {
+            Objective_RENDER_TYPE.set(nmsPacket, Enum.valueOf(EnumScoreboardHealthDisplay, display.name()));
         }
         Objective_METHOD.set(nmsPacket, action);
         return nmsPacket;
     }
 
-    private Object asDisplayType(boolean hearts) {
-        return Enum.valueOf(EnumScoreboardHealthDisplay, hearts ? "HEARTS" : "INTEGER");
-    }
-
     @Override
     @SneakyThrows
     public void registerTeam0(@NotNull String name, @NotNull String prefix, @NotNull String suffix,
@@ -199,7 +273,7 @@ public class PacketScoreboard extends Scoreboard<BukkitTabPlayer> {
                               @NotNull Collection<String> players, int options) {
         Object team = createTeam(name, prefix, suffix, visibility, collision, options);
         ((Collection<String>)ScoreboardTeam_getPlayerNameSet.invoke(team)).addAll(players);
-        if (nms.getMinorVersion() >= 17) {
+        if (BukkitReflection.getMinorVersion() >= 17) {
             player.sendPacket(TeamPacketConstructor_ofBoolean.invoke(null, team, true));
         } else {
             player.sendPacket(newTeamPacket.newInstance(team, 0));
@@ -210,7 +284,7 @@ public class PacketScoreboard extends Scoreboard<BukkitTabPlayer> {
     @SneakyThrows
     public void unregisterTeam0(@NotNull String name) {
         Object team = newScoreboardTeam.newInstance(emptyScoreboard, name);
-        if (nms.getMinorVersion() >= 17) {
+        if (BukkitReflection.getMinorVersion() >= 17) {
             player.sendPacket(TeamPacketConstructor_of.invoke(null, team));
         } else {
             player.sendPacket(newTeamPacket.newInstance(team, 1));
@@ -222,7 +296,7 @@ public class PacketScoreboard extends Scoreboard<BukkitTabPlayer> {
     public void updateTeam0(@NotNull String name, @NotNull String prefix, @NotNull String suffix,
                             @NotNull NameVisibility visibility, @NotNull CollisionRule collision, int options) {
         Object team = createTeam(name, prefix, suffix, visibility, collision, options);
-        if (nms.getMinorVersion() >= 17) {
+        if (BukkitReflection.getMinorVersion() >= 17) {
             player.sendPacket(TeamPacketConstructor_ofBoolean.invoke(null, team, false));
         } else {
             player.sendPacket(newTeamPacket.newInstance(team, 2));
@@ -230,45 +304,44 @@ public class PacketScoreboard extends Scoreboard<BukkitTabPlayer> {
     }
 
     @SneakyThrows
-    private Object createTeam(String teamName, String prefix, String suffix, NameVisibility visibility, CollisionRule collision, int options) {
+    private Object createTeam(@NotNull String teamName, @NotNull String prefix, @NotNull String suffix,
+                              @NotNull NameVisibility visibility, @NotNull CollisionRule collision, int options) {
         Object team = newScoreboardTeam.newInstance(emptyScoreboard, teamName);
         ScoreboardTeam_setAllowFriendlyFire.invoke(team, (options & 0x1) > 0);
         ScoreboardTeam_setCanSeeFriendlyInvisibles.invoke(team, (options & 0x2) > 0);
-        if (nms.getMinorVersion() >= 13) {
-            ScoreboardTeam_setPrefix.invoke(team, nms.toNMSComponent(IChatBaseComponent.optimizedComponent(prefix), player.getVersion()));
-            ScoreboardTeam_setSuffix.invoke(team, nms.toNMSComponent(IChatBaseComponent.optimizedComponent(suffix), player.getVersion()));
-            ScoreboardTeam_setColor.invoke(team, Enum.valueOf(nms.EnumChatFormat, EnumChatFormat.lastColorsOf(prefix).toString()));
+        if (BukkitReflection.getMinorVersion() >= 13) {
+            ScoreboardTeam_setPrefix.invoke(team, toComponent(IChatBaseComponent.optimizedComponent(prefix)));
+            ScoreboardTeam_setSuffix.invoke(team, toComponent(IChatBaseComponent.optimizedComponent(suffix)));
+            ScoreboardTeam_setColor.invoke(team, Enum.valueOf(EnumChatFormatClass, EnumChatFormat.lastColorsOf(prefix).toString()));
         } else {
             ScoreboardTeam_setPrefix.invoke(team, prefix);
             ScoreboardTeam_setSuffix.invoke(team, suffix);
         }
-        if (nms.getMinorVersion() >= 8) ScoreboardTeam_setNameTagVisibility.invoke(team, Enum.valueOf(EnumNameTagVisibility, visibility.name()));
-        if (nms.getMinorVersion() >= 9) ScoreboardTeam_setCollisionRule.invoke(team, Enum.valueOf(EnumTeamPush, collision.name()));
+        if (BukkitReflection.getMinorVersion() >= 8) ScoreboardTeam_setNameTagVisibility.invoke(team, Enum.valueOf(EnumNameTagVisibility, visibility.name()));
+        if (BukkitReflection.getMinorVersion() >= 9) ScoreboardTeam_setCollisionRule.invoke(team, Enum.valueOf(EnumTeamPush, collision.name()));
         return team;
     }
 
     @Override
     @SneakyThrows
     public void setScore0(@NotNull String objective, @NotNull String playerName, int score) {
-        Object packet;
-        if (nms.getMinorVersion() >= 13) {
-            packet = newScorePacket_1_13.newInstance(Enum.valueOf(EnumScoreboardAction, "CHANGE"), objective, playerName, score);
+        if (BukkitReflection.getMinorVersion() >= 13) {
+            player.sendPacket(newScorePacket_1_13.newInstance(Enum.valueOf(EnumScoreboardAction, "CHANGE"), objective, playerName, score));
         } else {
             Object scoreboardScore = newScoreboardScore.newInstance(emptyScoreboard, newScoreboardObjective(objective), playerName);
             ScoreboardScore_setScore.invoke(scoreboardScore, score);
-            if (nms.getMinorVersion() >= 8) {
-                packet = newScorePacket.newInstance(scoreboardScore);
+            if (BukkitReflection.getMinorVersion() >= 8) {
+                player.sendPacket(newScorePacket.newInstance(scoreboardScore));
             } else {
-                packet = newScorePacket.newInstance(scoreboardScore, 0);
+                player.sendPacket(newScorePacket.newInstance(scoreboardScore, 0));
             }
         }
-        player.sendPacket(packet);
     }
 
     @Override
     @SneakyThrows
     public void removeScore0(@NotNull String objective, @NotNull String playerName) {
-        if (nms.getMinorVersion() >= 13) {
+        if (BukkitReflection.getMinorVersion() >= 13) {
             player.sendPacket(newScorePacket_1_13.newInstance(Enum.valueOf(EnumScoreboardAction, "REMOVE"), objective, playerName, 0));
         } else {
             player.sendPacket(newScorePacket_String.newInstance(playerName));
@@ -284,12 +357,12 @@ public class PacketScoreboard extends Scoreboard<BukkitTabPlayer> {
      */
     @SneakyThrows
     public Object newScoreboardObjective(@NotNull String objectiveName) {
-        if (nms.getMinorVersion() >= 13) {
+        if (BukkitReflection.getMinorVersion() >= 13) {
             return newScoreboardObjective.newInstance(
                     null,
                     objectiveName,
                     null,
-                    nms.toNMSComponent(new IChatBaseComponent(""), TAB.getInstance().getServerVersion()),
+                    toComponent(new IChatBaseComponent("")),
                     null
             );
         }
@@ -299,4 +372,8 @@ public class PacketScoreboard extends Scoreboard<BukkitTabPlayer> {
                 IScoreboardCriteria_self.get(null)
         );
     }
+
+    private Object toComponent(IChatBaseComponent component) {
+        return player.getPlatform().toComponent(component, player.getVersion());
+    }
 }

bukkit/src/main/java/me/neznamy/tab/platforms/bukkit/scoreboard/PaperScoreboard.java

@@ -1,18 +1,16 @@
 package me.neznamy.tab.platforms.bukkit.scoreboard;
 
+import lombok.Getter;
 import me.neznamy.tab.platforms.bukkit.BukkitTabPlayer;
-import me.neznamy.tab.shared.TAB;
 import me.neznamy.tab.shared.chat.IChatBaseComponent;
-import me.neznamy.tab.shared.platform.Scoreboard;
+import me.neznamy.tab.shared.hook.AdventureHook;
+import me.neznamy.tab.shared.util.ReflectionUtils;
 import net.kyori.adventure.text.Component;
-import org.bukkit.Bukkit;
 import org.bukkit.scoreboard.Objective;
 import org.bukkit.scoreboard.RenderType;
 import org.bukkit.scoreboard.Team;
 import org.jetbrains.annotations.NotNull;
 
-import java.util.Collection;
-
 /**
  * Scoreboard handler using Paper API, which got added
  * in early 1.16.5 builds. Unlike the Bukkit API, the new
@@ -21,94 +19,36 @@ import java.util.Collection;
  * <p>
  * However, it still inherits the issue with compatibility
  * with other plugins that create scoreboards.
- * <p>
- * Currently, this class is never used. In the future, it might
- * be used as a fallback solution for unsupported versions if NMS
- * changes and fields fail to load. Or as a complete replacement
- * if compatibility with other plugins turns out not to be a problem.
  */
-@SuppressWarnings("ConstantConditions") // Throw the NPE if something is not as expected, parent class should ensure it anyway
-public class PaperScoreboard extends Scoreboard<BukkitTabPlayer> {
+public class PaperScoreboard extends BukkitScoreboard {
 
-    private final org.bukkit.scoreboard.Scoreboard scoreboard = Bukkit.getScoreboardManager().getNewScoreboard();
+    /** Flag tracking whether this implementation is available for use */
+    @Getter
+    private static final boolean available = ReflectionUtils.classExists("net.kyori.adventure.text.Component") &&
+            ReflectionUtils.methodExists(Team.class, "prefix", Component.class);
 
-    public PaperScoreboard(BukkitTabPlayer player) {
+    public PaperScoreboard(@NotNull BukkitTabPlayer player) {
         super(player);
-
-        // Put player into a different scoreboard for per-player view
-        player.getPlayer().setScoreboard(scoreboard);
     }
 
     @Override
-    public void setDisplaySlot(@NotNull DisplaySlot slot, @NotNull String objective) {
-        checkPlayerScoreboard();
-        scoreboard.getObjective(objective).setDisplaySlot(org.bukkit.scoreboard.DisplaySlot.valueOf(slot.name()));
+    public void newObjective(String objectiveName, String criteria, String title, @NotNull HealthDisplay display) {
+        scoreboard.registerNewObjective(objectiveName, criteria, toAdventure(title), RenderType.valueOf(display.name()));
     }
 
     @Override
-    public void setScore0(@NotNull String objective, @NotNull String playerName, int score) {
-        checkPlayerScoreboard();
-        scoreboard.getObjective(objective).getScore(playerName).setScore(score);
+    public void setDisplayName(@NotNull Objective objective, @NotNull String displayName) {
+        objective.displayName(toAdventure(displayName));
     }
 
     @Override
-    public void removeScore0(@NotNull String objective, @NotNull String playerName) {
-        checkPlayerScoreboard();
-        scoreboard.resetScores(playerName);
-    }
-
-    @Override
-    public void registerObjective0(@NotNull String objectiveName, @NotNull String title, boolean hearts) {
-        checkPlayerScoreboard();
-        scoreboard.registerNewObjective(objectiveName, "dummy", toAdventure(title), hearts ? RenderType.HEARTS : RenderType.INTEGER);
-    }
-
-    @Override
-    public void unregisterObjective0(@NotNull String objectiveName) {
-        checkPlayerScoreboard();
-        scoreboard.getObjective(objectiveName).unregister();
-    }
-
-    @Override
-    public void updateObjective0(@NotNull String objectiveName, @NotNull String title, boolean hearts) {
-        checkPlayerScoreboard();
-        Objective obj = scoreboard.getObjective(objectiveName);
-        obj.setRenderType(hearts ? RenderType.HEARTS : RenderType.INTEGER);
-        obj.displayName(toAdventure(title));
-    }
-
-    @Override
-    public void registerTeam0(@NotNull String name, @NotNull String prefix, @NotNull String suffix,
-                              @NotNull NameVisibility visibility, @NotNull CollisionRule collision,
-                              @NotNull Collection<String> players, int options) {
-        checkPlayerScoreboard();
-        Team team = scoreboard.registerNewTeam(name);
+    public void setPrefix(@NotNull Team team, @NotNull String prefix) {
         team.prefix(toAdventure(prefix));
-        team.suffix(toAdventure(suffix));
-        team.setOption(Team.Option.NAME_TAG_VISIBILITY, Team.OptionStatus.values()[visibility.ordinal()]);
-        team.setOption(Team.Option.COLLISION_RULE, Team.OptionStatus.values()[collision.ordinal()]);
-        players.forEach(team::addEntry);
-        team.setAllowFriendlyFire((options & 0x01) != 0);
-        team.setCanSeeFriendlyInvisibles((options & 0x02) != 0);
     }
 
     @Override
-    public void unregisterTeam0(@NotNull String name) {
-        checkPlayerScoreboard();
-        scoreboard.getTeam(name).unregister();
-    }
-
-    @Override
-    public void updateTeam0(@NotNull String name, @NotNull String prefix, @NotNull String suffix,
-                            @NotNull NameVisibility visibility, @NotNull CollisionRule collision, int options) {
-        checkPlayerScoreboard();
-        Team team = scoreboard.getTeam(name);
-        team.prefix(toAdventure(prefix));
+    public void setSuffix(@NotNull Team team, @NotNull String suffix) {
         team.suffix(toAdventure(suffix));
-        team.setOption(Team.Option.NAME_TAG_VISIBILITY, Team.OptionStatus.values()[visibility.ordinal()]);
-        team.setOption(Team.Option.COLLISION_RULE, Team.OptionStatus.values()[collision.ordinal()]);
-        team.setAllowFriendlyFire((options & 0x01) != 0);
-        team.setCanSeeFriendlyInvisibles((options & 0x02) != 0);
     }
 
     /**
@@ -118,24 +58,8 @@ public class PaperScoreboard extends Scoreboard<BukkitTabPlayer> {
      *          Text to convert
      * @return  Converted component
      */
-    private @NotNull Component toAdventure(@NotNull String text) {
-        return IChatBaseComponent.optimizedComponent(text).toAdventureComponent(player.getVersion());
-    }
-
-    /**
-     * Makes sure player is in the correct scoreboard.
-     * If not, puts the player into correct scoreboard and prints
-     * a warning.
-     * The only possible reason for this to happen is another plugin
-     * putting a player into a different scoreboard.
-     * Sadly there is no efficient solution to this, which md_5 fails
-     * to understand and keeps saying you don't need packets for scoreboards.
-     */
-    private void checkPlayerScoreboard() {
-        if (player.getPlayer().getScoreboard() != scoreboard) {
-            player.getPlayer().setScoreboard(scoreboard);
-            TAB.getInstance().getErrorManager().printError("Player " + player.getName() + " was in a different scoreboard " +
-                    "than expected. This means another plugin changed player's scoreboard.");
-        }
+    @NotNull
+    private Component toAdventure(@NotNull String text) {
+        return AdventureHook.toAdventureComponent(IChatBaseComponent.optimizedComponent(text), player.getVersion());
     }
 }

bukkit/src/main/resources/plugin.yml

@@ -11,7 +11,7 @@ softdepend: [PlaceholderAPI, LuckPerms, LibsDisguises, ViaVersion, ViaRewind, fl
 loadbefore: []
 prefix: TAB
 libraries: []
-folia-supported: false
+folia-supported: true
 commands:
   tab:
     description: Plugin's main command

bungeecord/src/main/java/me/neznamy/tab/platforms/bungeecord/BungeeBossBar.java

@@ -18,11 +18,15 @@ import java.util.UUID;
  */
 @RequiredArgsConstructor
 public class BungeeBossBar implements BossBar {
-    
-    private final @NotNull BungeeTabPlayer player;
+
+    @NotNull
+    private final BungeeTabPlayer player;
 
     /** Both are included in the same action, need to remember and write them both */
+    @NotNull
     private final Map<UUID, Integer> colors = new HashMap<>();
+
+    @NotNull
     private final Map<UUID, Integer> styles = new HashMap<>();
 
     @Override

bungeecord/src/main/java/me/neznamy/tab/platforms/bungeecord/BungeeEventListener.java

@@ -1,5 +1,6 @@
 package me.neznamy.tab.platforms.bungeecord;
 
+import me.neznamy.tab.shared.TAB;
 import me.neznamy.tab.shared.TabConstants;
 import me.neznamy.tab.shared.platform.EventListener;
 import me.neznamy.tab.shared.platform.TabPlayer;
@@ -10,6 +11,7 @@ import net.md_5.bungee.api.event.PluginMessageEvent;
 import net.md_5.bungee.api.event.ServerSwitchEvent;
 import net.md_5.bungee.api.plugin.Listener;
 import net.md_5.bungee.event.EventHandler;
+import org.jetbrains.annotations.NotNull;
 
 /**
  * The core for BungeeCord forwarding events into all enabled features
@@ -27,23 +29,24 @@ public class BungeeEventListener extends EventListener<ProxiedPlayer> implements
     }
 
     @EventHandler
-    public void onChat(ChatEvent e) {
+    public void onCommand(ChatEvent e) {
         if (e.isCommand() && command(((ProxiedPlayer)e.getSender()).getUniqueId(), e.getMessage())) {
             e.setCancelled(true);
         }
     }
 
     @EventHandler
-    public void on(PluginMessageEvent event) {
-        if (!event.getTag().equals(TabConstants.PLUGIN_MESSAGE_CHANNEL_NAME)) return;
-        if (event.getReceiver() instanceof ProxiedPlayer) {
-            event.setCancelled(true);
-            pluginMessage(((ProxiedPlayer) event.getReceiver()).getUniqueId(), event.getData());
+    public void on(PluginMessageEvent e) {
+        if (!e.getTag().equals(TabConstants.PLUGIN_MESSAGE_CHANNEL_NAME)) return;
+        if (e.getReceiver() instanceof ProxiedPlayer) {
+            e.setCancelled(true);
+            pluginMessage(((ProxiedPlayer) e.getReceiver()).getUniqueId(), e.getData());
         }
     }
 
     @Override
-    public TabPlayer createPlayer(ProxiedPlayer player) {
-        return new BungeeTabPlayer(player);
+    @NotNull
+    public TabPlayer createPlayer(@NotNull ProxiedPlayer player) {
+        return new BungeeTabPlayer((BungeePlatform) TAB.getInstance().getPlatform(), player);
     }
 }

bungeecord/src/main/java/me/neznamy/tab/platforms/bungeecord/BungeePipelineInjector.java

@@ -8,6 +8,7 @@ import io.netty.channel.ChannelHandlerContext;
 import io.netty.channel.ChannelPromise;
 import java.lang.reflect.Field;
 
+import lombok.SneakyThrows;
 import me.neznamy.tab.shared.features.nametags.NameTag;
 import me.neznamy.tab.shared.features.redis.RedisSupport;
 import me.neznamy.tab.shared.features.redis.feature.RedisTeams;
@@ -18,14 +19,17 @@ import me.neznamy.tab.shared.TabConstants;
 import me.neznamy.tab.shared.features.injection.NettyPipelineInjector;
 import me.neznamy.tab.shared.features.redis.RedisPlayer;
 import me.neznamy.tab.shared.features.sorting.Sorting;
+import me.neznamy.tab.shared.util.ReflectionUtils;
 import net.md_5.bungee.api.connection.ProxiedPlayer;
 import net.md_5.bungee.connection.InitialHandler;
 import net.md_5.bungee.netty.ChannelWrapper;
 import net.md_5.bungee.protocol.DefinedPacket;
+import net.md_5.bungee.protocol.Protocol;
 import net.md_5.bungee.protocol.packet.*;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
+import java.lang.reflect.Method;
 import java.util.Collection;
 import java.util.function.Function;
 import java.util.function.Supplier;
@@ -38,41 +42,60 @@ import java.util.function.Supplier;
 @SuppressWarnings("unchecked")
 public class BungeePipelineInjector extends NettyPipelineInjector {
 
-    private static @Nullable Field wrapperField;
+    /** Inaccessible bungee internals */
+    @Nullable
+    private static Field wrapperField;
+
+    @Nullable
+    private static Object directionData;
+
+    @Nullable
+    private static Method getId;
 
     static {
         try {
             (wrapperField = InitialHandler.class.getDeclaredField("ch")).setAccessible(true);
+            directionData = ReflectionUtils.setAccessible(Protocol.class.getDeclaredField("TO_CLIENT")).get(Protocol.GAME);
+            getId = ReflectionUtils.setAccessible(directionData.getClass().getDeclaredMethod("getId", Class.class, int.class));
         } catch (ReflectiveOperationException exception) {
             TAB.getInstance().getErrorManager().criticalError("Failed to initialize bungee internal fields", exception);
         }
     }
 
     /** Packets used by the plugin that must be deserialized and BungeeCord does not do it automatically */
+    @NotNull
     private final Class<? extends DefinedPacket>[] extraPacketClasses = new Class[]{Team.class, ScoreboardDisplay.class, ScoreboardObjective.class};
+
+    @NotNull
     private final Supplier<DefinedPacket>[] extraPacketSuppliers = new Supplier[]{Team::new, ScoreboardDisplay::new, ScoreboardObjective::new};
 
     @Override
+    @NotNull
     public Function<TabPlayer, ChannelDuplexHandler> getChannelFunction() {
         return byteBufDeserialization ? DeserializableBungeeChannelDuplexHandler::new : TabChannelDuplexHandler::new;
     }
 
     @Override
-    protected @Nullable Channel getChannel(@NotNull TabPlayer player) {
+    @Nullable
+    protected Channel getChannel(@NotNull TabPlayer player) {
         if (wrapperField == null) return null;
         final BungeeTabPlayer bungee = (BungeeTabPlayer) player;
         try {
             return ((ChannelWrapper) wrapperField.get(bungee.getPlayer().getPendingConnection())).getHandle();
-        } catch (final IllegalAccessException exception) {
+        } catch (IllegalAccessException exception) {
             TAB.getInstance().getErrorManager().criticalError("Failed to get channel of " + bungee.getPlayer().getName(), exception);
         }
         return null;
     }
 
     @Override
+    @SneakyThrows
     public void onDisplayObjective(@NotNull TabPlayer player, @NotNull Object packet) {
-        TAB.getInstance().getFeatureManager().onDisplayObjective(player,
-                ((ScoreboardDisplay) packet).getPosition(), ((ScoreboardDisplay) packet).getName());
+        TAB.getInstance().getFeatureManager().onDisplayObjective(
+                player,
+                ((Number) ScoreboardDisplay.class.getMethod("getPosition").invoke(packet)).intValue(),
+                ((ScoreboardDisplay) packet).getName()
+        );
     }
 
     @Override
@@ -110,10 +133,11 @@ public class BungeePipelineInjector extends NettyPipelineInjector {
         for (TabPlayer p : TAB.getInstance().getOnlinePlayers()) {
             Sorting sorting = TAB.getInstance().getFeatureManager().getFeature(TabConstants.Feature.SORTING);
             String expectedTeam = sorting.getShortTeamName(p);
-            if (expectedTeam != null && col.contains(p.getName()) &&
+            if (expectedTeam != null && (col.contains(p.getNickname()) || col.contains(p.getName())) &&
                     !((NameTag)TAB.getInstance().getNameTagManager()).getDisableChecker().isDisabledPlayer(p) &&
                     !TAB.getInstance().getNameTagManager().hasTeamHandlingPaused(p) && !packet.getName().equals(expectedTeam)) {
                 logTeamOverride(packet.getName(), p.getName(), expectedTeam);
+                col.remove(p.getNickname());
                 col.remove(p.getName());
             }
         }
@@ -122,9 +146,9 @@ public class BungeePipelineInjector extends NettyPipelineInjector {
             RedisTeams teams = redis.getRedisTeams();
             if (teams != null) {
                 for (RedisPlayer p : redis.getRedisPlayers().values()) {
-                    if (col.contains(p.getName()) && !packet.getName().equals(teams.getTeamNames().get(p))) {
-                        logTeamOverride(packet.getName(), p.getName(), teams.getTeamNames().get(p));
-                        col.remove(p.getName());
+                    if (col.contains(p.getNickname()) && !packet.getName().equals(teams.getTeamNames().get(p))) {
+                        logTeamOverride(packet.getName(), p.getNickname(), teams.getTeamNames().get(p));
+                        col.remove(p.getNickname());
                     }
                 }
             }
@@ -141,6 +165,12 @@ public class BungeePipelineInjector extends NettyPipelineInjector {
                     IChatBaseComponent newDisplayName = TAB.getInstance().getFeatureManager().onDisplayNameChange(receiver, item.getUuid());
                     if (newDisplayName != null) item.setDisplayName(newDisplayName.toString(receiver.getVersion()));
                 }
+                if (update.getActions().contains(PlayerListItemUpdate.Action.UPDATE_LATENCY)) {
+                    item.setPing(TAB.getInstance().getFeatureManager().onLatencyChange(receiver, item.getUuid(), item.getPing()));
+                }
+                if (update.getActions().contains(PlayerListItemUpdate.Action.ADD_PLAYER)) {
+                    TAB.getInstance().getFeatureManager().onEntryAdd(receiver, item.getUuid(), item.getUsername());
+                }
             }
         } else {
             PlayerListItem listItem = (PlayerListItem) packet;
@@ -149,6 +179,12 @@ public class BungeePipelineInjector extends NettyPipelineInjector {
                     IChatBaseComponent newDisplayName = TAB.getInstance().getFeatureManager().onDisplayNameChange(receiver, item.getUuid());
                     if (newDisplayName != null) item.setDisplayName(newDisplayName.toString(receiver.getVersion()));
                 }
+                if (listItem.getAction() == PlayerListItem.Action.UPDATE_LATENCY || listItem.getAction() == PlayerListItem.Action.ADD_PLAYER) {
+                    item.setPing(TAB.getInstance().getFeatureManager().onLatencyChange(receiver, item.getUuid(), item.getPing()));
+                }
+                if (listItem.getAction() == PlayerListItem.Action.ADD_PLAYER) {
+                    TAB.getInstance().getFeatureManager().onEntryAdd(receiver, item.getUuid(), item.getUsername());
+                }
             }
         }
     }
@@ -173,12 +209,12 @@ public class BungeePipelineInjector extends NettyPipelineInjector {
          * @param   player
          *          player to inject
          */
-        public DeserializableBungeeChannelDuplexHandler(TabPlayer player) {
+        public DeserializableBungeeChannelDuplexHandler(@NotNull TabPlayer player) {
             super(player);
         }
 
         @Override
-        public void write(ChannelHandlerContext context, Object packet, ChannelPromise channelPromise) {
+        public void write(@NotNull ChannelHandlerContext context, @NotNull Object packet, @NotNull ChannelPromise channelPromise) {
             long time = System.nanoTime();
             Object modifiedPacket = packet instanceof ByteBuf ? deserialize((ByteBuf) packet) : packet;
             TAB.getInstance().getCPUManager().addTime(TabConstants.Feature.PACKET_DESERIALIZING, TabConstants.CpuUsageCategory.BYTE_BUF, System.nanoTime()-time);
@@ -193,12 +229,13 @@ public class BungeePipelineInjector extends NettyPipelineInjector {
          *          byte buf to deserialize
          * @return  deserialized packet or input byte buf if packet is not tracked
          */
-        private @NotNull Object deserialize(@NotNull ByteBuf buf) {
+        @NotNull
+        private Object deserialize(@NotNull ByteBuf buf) {
             int marker = buf.readerIndex();
             try {
                 int packetId = buf.readByte();
                 for (int i=0; i<extraPacketClasses.length; i++) {
-                    if (packetId == ((BungeeTabPlayer)player).getPacketId(extraPacketClasses[i])) {
+                    if (packetId == getPacketId(((BungeeTabPlayer)player).getPlayer().getPendingConnection().getVersion(), extraPacketClasses[i])) {
                         DefinedPacket packet = extraPacketSuppliers[i].get();
                         packet.read(buf, null, ((ProxiedPlayer)player.getPlayer()).getPendingConnection().getVersion());
                         buf.release();
@@ -211,5 +248,25 @@ public class BungeePipelineInjector extends NettyPipelineInjector {
             buf.readerIndex(marker);
             return buf;
         }
+
+        /**
+         * Returns packet ID of specified packet on the protocol version
+         *
+         * @param   protocolVersion
+         *          Protocol version to get packet id for
+         * @param   clazz
+         *          packet class
+         * @return  packet ID
+         */
+        private int getPacketId(int protocolVersion, @NotNull Class<? extends DefinedPacket> clazz) {
+            if (getId == null) return -1;
+            try {
+                return (int) getId.invoke(directionData, clazz, protocolVersion);
+            } catch (ReflectiveOperationException e) {
+                TAB.getInstance().getErrorManager().printError("Failed to get packet id for packet " + clazz +
+                        " with client version " + protocolVersion, e);
+                return -1;
+            }
+        }
     }
 }

bungeecord/src/main/java/me/neznamy/tab/platforms/bungeecord/BungeePlatform.java

@@ -2,53 +2,131 @@ package me.neznamy.tab.platforms.bungeecord;
 
 import com.imaginarycode.minecraft.redisbungee.RedisBungeeAPI;
 import lombok.AllArgsConstructor;
+import me.neznamy.tab.platforms.bungeecord.features.BungeeRedisSupport;
+import me.neznamy.tab.shared.ProtocolVersion;
 import me.neznamy.tab.shared.TAB;
+import me.neznamy.tab.shared.TabConstants;
+import me.neznamy.tab.shared.chat.ChatModifier;
+import me.neznamy.tab.shared.chat.EnumChatFormat;
 import me.neznamy.tab.shared.chat.IChatBaseComponent;
 import me.neznamy.tab.shared.features.injection.PipelineInjector;
 import me.neznamy.tab.shared.features.redis.RedisSupport;
+import me.neznamy.tab.shared.hook.ViaVersionHook;
 import me.neznamy.tab.shared.proxy.ProxyPlatform;
+import me.neznamy.tab.shared.util.ComponentCache;
 import me.neznamy.tab.shared.util.ReflectionUtils;
+import net.md_5.bungee.api.ChatColor;
 import net.md_5.bungee.api.ProxyServer;
+import net.md_5.bungee.api.chat.BaseComponent;
+import net.md_5.bungee.api.chat.TextComponent;
 import net.md_5.bungee.api.connection.ProxiedPlayer;
+import org.bstats.bungeecord.Metrics;
+import org.bstats.charts.SimplePie;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
+import java.io.File;
+import java.util.stream.Collectors;
+
 /**
  * BungeeCord implementation of Platform
  */
 @AllArgsConstructor
-public class BungeePlatform extends ProxyPlatform {
+public class BungeePlatform extends ProxyPlatform<BaseComponent> {
 
-    @NotNull private final BungeeTAB plugin;
+    @NotNull
+    private final BungeeTAB plugin;
+
+    /** Component cache for BungeeCord components */
+    @NotNull
+    private final ComponentCache<IChatBaseComponent, BaseComponent> bungeeCache =
+            new ComponentCache<>(1000, this::toComponent0);
 
     @Override
-    public @Nullable RedisSupport getRedisSupport() {
+    public void loadPlayers() {
+        ViaVersionHook.getInstance().printProxyWarn();
+        for (ProxiedPlayer p : ProxyServer.getInstance().getPlayers()) {
+            TAB.getInstance().addPlayer(new BungeeTabPlayer(this, p));
+        }
+    }
+
+    @Override
+    @Nullable
+    public RedisSupport getRedisSupport() {
         if (ReflectionUtils.classExists("com.imaginarycode.minecraft.redisbungee.RedisBungeeAPI") &&
                 RedisBungeeAPI.getRedisBungeeApi() != null) {
-            return new RedisBungeeSupport(plugin);
+            return new BungeeRedisSupport(plugin);
         }
         return null;
     }
 
     @Override
-    public void sendConsoleMessage(@NotNull IChatBaseComponent message) {
+    public void logInfo(@NotNull IChatBaseComponent message) {
         plugin.getLogger().info(message.toLegacyText());
     }
 
     @Override
+    public void logWarn(@NotNull IChatBaseComponent message) {
+        plugin.getLogger().warning(EnumChatFormat.RED.getFormat() + message.toLegacyText());
+    }
+
+    @Override
+    @NotNull
     public String getServerVersionInfo() {
         return "[BungeeCord] " + plugin.getProxy().getName() + " - " + plugin.getProxy().getVersion();
     }
 
     @Override
-    public void loadPlayers() {
-        for (ProxiedPlayer p : ProxyServer.getInstance().getPlayers()) {
-            TAB.getInstance().addPlayer(new BungeeTabPlayer(p));
-        }
+    public void registerListener() {
+        ProxyServer.getInstance().getPluginManager().registerListener(plugin, new BungeeEventListener());
     }
 
     @Override
-    public @Nullable PipelineInjector createPipelineInjector() {
+    public void registerCommand() {
+        ProxyServer.getInstance().getPluginManager().registerCommand(plugin, new BungeeTabCommand());
+    }
+
+    @Override
+    public void startMetrics() {
+        new Metrics(plugin, 10535).addCustomChart(new SimplePie(TabConstants.MetricsChart.GLOBAL_PLAYER_LIST_ENABLED,
+                () -> TAB.getInstance().getFeatureManager().isFeatureEnabled(TabConstants.Feature.GLOBAL_PLAYER_LIST) ? "Yes" : "No"));
+    }
+
+    @Override
+    @NotNull
+    public File getDataFolder() {
+        return plugin.getDataFolder();
+    }
+
+    @Override
+    public BaseComponent toComponent(@NotNull IChatBaseComponent component, @NotNull ProtocolVersion version) {
+        return bungeeCache.get(component, version);
+    }
+
+    private BaseComponent toComponent0(IChatBaseComponent component, ProtocolVersion version) {
+        ChatModifier modifier = component.getModifier();
+        TextComponent textComponent = new TextComponent(component.getText());
+        if (modifier.getColor() != null) textComponent.setColor(ChatColor.of(
+                modifier.getColor().toString(version.getMinorVersion() >= 16)));
+        if (modifier.isBold()) textComponent.setBold(true);
+        if (modifier.isItalic()) textComponent.setItalic(true);
+        if (modifier.isObfuscated()) textComponent.setObfuscated(true);
+        if (modifier.isStrikethrough()) textComponent.setStrikethrough(true);
+        if (modifier.isUnderlined()) textComponent.setUnderlined(true);
+        if (modifier.getFont() != null) textComponent.setFont(modifier.getFont());
+        if (!component.getExtra().isEmpty()) textComponent.setExtra(
+                component.getExtra().stream().map(c -> toComponent0(c, version)).collect(Collectors.toList()));
+        return textComponent;
+    }
+
+    @Override
+    @Nullable
+    public PipelineInjector createPipelineInjector() {
         return new BungeePipelineInjector();
     }
-}
+
+    @Override
+    public void registerChannel() {
+        ProxyServer.getInstance().registerChannel(TabConstants.PLUGIN_MESSAGE_CHANNEL_NAME);
+    }
+}

bungeecord/src/main/java/me/neznamy/tab/platforms/bungeecord/BungeeScoreboard.java

@@ -1,6 +1,6 @@
 package me.neznamy.tab.platforms.bungeecord;
 
-import me.neznamy.tab.shared.ProtocolVersion;
+import lombok.SneakyThrows;
 import me.neznamy.tab.shared.chat.EnumChatFormat;
 import me.neznamy.tab.shared.chat.IChatBaseComponent;
 import me.neznamy.tab.shared.platform.Scoreboard;
@@ -10,6 +10,8 @@ import net.md_5.bungee.protocol.packet.ScoreboardScore;
 import net.md_5.bungee.protocol.packet.Team;
 import org.jetbrains.annotations.NotNull;
 
+import java.lang.reflect.Constructor;
+import java.util.Arrays;
 import java.util.Collection;
 
 /**
@@ -19,84 +21,105 @@ import java.util.Collection;
  */
 public class BungeeScoreboard extends Scoreboard<BungeeTabPlayer> {
 
-    public BungeeScoreboard(BungeeTabPlayer player) {
+    /** Constructor to support both <1.20.2 and 1.20.2+ builds */
+    @SuppressWarnings("unchecked")
+    private static final Constructor<ScoreboardDisplay> newScoreboardDisplay = (Constructor<ScoreboardDisplay>)
+            Arrays.stream(ScoreboardDisplay.class.getConstructors()).filter(c -> c.getParameterCount() == 2).findAny().orElse(null);
+
+    public BungeeScoreboard(@NotNull BungeeTabPlayer player) {
         super(player);
     }
 
     @Override
+    @SneakyThrows
     public void setDisplaySlot(@NotNull DisplaySlot slot, @NotNull String objective) {
-        player.sendPacket(new ScoreboardDisplay((byte)slot.ordinal(), objective));
+        player.getPlayer().unsafe().sendPacket(newScoreboardDisplay.newInstance((byte)slot.ordinal(), objective));
     }
 
     @Override
-    public void registerObjective0(@NotNull String objectiveName, @NotNull String title, boolean hearts) {
-        player.sendPacket(new ScoreboardObjective(objectiveName, jsonOrRaw(title, player.getVersion()), hearts ? ScoreboardObjective.HealthDisplay.HEARTS : ScoreboardObjective.HealthDisplay.INTEGER, (byte) 0));
+    public void registerObjective0(@NotNull String objectiveName, @NotNull String title, @NotNull HealthDisplay display) {
+        player.getPlayer().unsafe().sendPacket(new ScoreboardObjective(
+                objectiveName,
+                jsonOrRaw(title),
+                ScoreboardObjective.HealthDisplay.valueOf(display.name()),
+                (byte) 0
+        ));
     }
 
     @Override
     public void unregisterObjective0(@NotNull String objectiveName) {
-        player.sendPacket(new ScoreboardObjective(objectiveName, "", null, (byte) 1)); // Empty string to prevent kick on 1.7
+        player.getPlayer().unsafe().sendPacket(new ScoreboardObjective(
+                objectiveName,
+                "", // Empty string to prevent kick on 1.7
+                null,
+                (byte) 1
+        ));
     }
 
     @Override
-    public void updateObjective0(@NotNull String objectiveName, @NotNull String title, boolean hearts) {
-        player.sendPacket(new ScoreboardObjective(objectiveName, jsonOrRaw(title, player.getVersion()), hearts ? ScoreboardObjective.HealthDisplay.HEARTS : ScoreboardObjective.HealthDisplay.INTEGER, (byte) 2));
+    public void updateObjective0(@NotNull String objectiveName, @NotNull String title, @NotNull HealthDisplay display) {
+        player.getPlayer().unsafe().sendPacket(new ScoreboardObjective(
+                objectiveName,
+                jsonOrRaw(title),
+                ScoreboardObjective.HealthDisplay.valueOf(display.name()),
+                (byte) 2
+        ));
     }
 
     @Override
-    public void registerTeam0(@NotNull String name, @NotNull String prefix, @NotNull String suffix, @NotNull NameVisibility visibility, @NotNull CollisionRule collision, @NotNull Collection<String> players, int options) {
+    public void registerTeam0(@NotNull String name, @NotNull String prefix, @NotNull String suffix,
+                              @NotNull NameVisibility visibility, @NotNull CollisionRule collision,
+                              @NotNull Collection<String> players, int options) {
         int color = 0;
         if (player.getVersion().getMinorVersion() >= 13) {
             color = EnumChatFormat.lastColorsOf(prefix).ordinal();
         }
-        player.sendPacket(new Team(name, (byte) 0, jsonOrRaw(name, player.getVersion()),
-                jsonOrRaw(prefix, player.getVersion()), jsonOrRaw(suffix, player.getVersion()),
+        player.getPlayer().unsafe().sendPacket(new Team(name, (byte) 0, jsonOrRaw(name), jsonOrRaw(prefix), jsonOrRaw(suffix),
                 visibility.toString(), collision.toString(), color, (byte)options, players.toArray(new String[0])));
     }
 
     @Override
     public void unregisterTeam0(@NotNull String name) {
-        player.sendPacket(new Team(name));
+        player.getPlayer().unsafe().sendPacket(new Team(name));
     }
 
     @Override
-    public void updateTeam0(@NotNull String name, @NotNull String prefix, @NotNull String suffix, @NotNull NameVisibility visibility, @NotNull CollisionRule collision, int options) {
+    public void updateTeam0(@NotNull String name, @NotNull String prefix, @NotNull String suffix,
+                            @NotNull NameVisibility visibility, @NotNull CollisionRule collision, int options) {
         int color = 0;
         if (player.getVersion().getMinorVersion() >= 13) {
             color = EnumChatFormat.lastColorsOf(prefix).ordinal();
         }
-        player.sendPacket(new Team(name, (byte) 2, jsonOrRaw(name, player.getVersion()),
-                jsonOrRaw(prefix, player.getVersion()), jsonOrRaw(suffix, player.getVersion()),
-                visibility.toString(), collision.toString(), color, (byte)options, null));
-    }
-
-    /**
-     * If {@code clientVersion} is &gt;= 1.13, creates a component from given text and returns
-     * it as a serialized component, which BungeeCord uses.
-     * <p>
-     * If {@code clientVersion} is &lt; 1.12, the text is returned
-     *
-     * @param   text
-     *          Text to convert
-     * @param   clientVersion
-     *          Version of player to convert text for
-     * @return  serialized component for 1.13+ clients, cut string for 1.12-
-     */
-    private String jsonOrRaw(@NotNull String text, @NotNull ProtocolVersion clientVersion) {
-        if (clientVersion.getMinorVersion() >= 13) {
-            return IChatBaseComponent.optimizedComponent(text).toString(clientVersion);
-        } else {
-            return text;
-        }
+        player.getPlayer().unsafe().sendPacket(new Team(name, (byte) 2, jsonOrRaw(name), jsonOrRaw(prefix),
+                jsonOrRaw(suffix), visibility.toString(), collision.toString(), color, (byte)options, null));
     }
 
     @Override
     public void setScore0(@NotNull String objective, @NotNull String playerName, int score) {
-        player.sendPacket(new ScoreboardScore(playerName, (byte) 0, objective, score));
+        player.getPlayer().unsafe().sendPacket(new ScoreboardScore(playerName, (byte) 0, objective, score));
     }
 
     @Override
     public void removeScore0(@NotNull String objective, @NotNull String playerName) {
-        player.sendPacket(new ScoreboardScore(playerName, (byte) 1, objective, 0));
+        player.getPlayer().unsafe().sendPacket(new ScoreboardScore(playerName, (byte) 1, objective, 0));
+    }
+
+    /**
+     * If player's version is 1.13+, creates a component from given text and returns
+     * it as a serialized component, which BungeeCord uses.
+     * <p>
+     * If player's version is 1.12-, the text is returned
+     *
+     * @param   text
+     *          Text to convert
+     * @return  serialized component for 1.13+ clients, cut string for 1.12-
+     */
+    @NotNull
+    private String jsonOrRaw(@NotNull String text) {
+        if (player.getVersion().getMinorVersion() >= 13) {
+            return IChatBaseComponent.optimizedComponent(text).toString(player.getVersion());
+        } else {
+            return text;
+        }
     }
 }

bungeecord/src/main/java/me/neznamy/tab/platforms/bungeecord/BungeeTAB.java

@@ -1,33 +1,23 @@
 package me.neznamy.tab.platforms.bungeecord;
 
-import me.neznamy.tab.shared.ProtocolVersion;
 import me.neznamy.tab.shared.TAB;
-import me.neznamy.tab.shared.TabConstants;
 import me.neznamy.tab.shared.chat.EnumChatFormat;
 import me.neznamy.tab.shared.util.ReflectionUtils;
 import net.md_5.bungee.api.plugin.Plugin;
-import org.bstats.bungeecord.Metrics;
-import org.bstats.charts.SimplePie;
 
 /**
- * Main class for BungeeCord platform
+ * Main class for BungeeCord.
  */
 public class BungeeTAB extends Plugin {
 
     @Override
     public void onEnable() {
         if (!ReflectionUtils.classExists("net.md_5.bungee.protocol.packet.PlayerListItemUpdate")) {
-            getLogger().info(EnumChatFormat.color("&cThe plugin requires BungeeCord build #1671 and up (or an equivalent fork) to work."));
+            getLogger().info(EnumChatFormat.color("&cThe plugin requires BungeeCord build #1671 " +
+                    "(with 1.19.3 support) and up (or an equivalent fork) to work."));
             return;
         }
-        getProxy().registerChannel(TabConstants.PLUGIN_MESSAGE_CHANNEL_NAME);
-        getProxy().getPluginManager().registerListener(this, new BungeeEventListener());
-        getProxy().getPluginManager().registerCommand(this, new BungeeTabCommand());
-        TAB.setInstance(new TAB(new BungeePlatform(this), ProtocolVersion.PROXY, getDataFolder()));
-        TAB.getInstance().load();
-        Metrics metrics = new Metrics(this, 10535);
-        metrics.addCustomChart(new SimplePie(TabConstants.MetricsChart.PERMISSION_SYSTEM, () -> TAB.getInstance().getGroupManager().getPermissionPlugin()));
-        metrics.addCustomChart(new SimplePie(TabConstants.MetricsChart.GLOBAL_PLAYER_LIST_ENABLED, () -> TAB.getInstance().getFeatureManager().isFeatureEnabled(TabConstants.Feature.GLOBAL_PLAYER_LIST) ? "Yes" : "No"));
+        TAB.create(new BungeePlatform(this));
     }
 
     @Override

bungeecord/src/main/java/me/neznamy/tab/platforms/bungeecord/BungeeTabCommand.java

@@ -9,8 +9,9 @@ import net.md_5.bungee.api.chat.TextComponent;
 import net.md_5.bungee.api.connection.ProxiedPlayer;
 import net.md_5.bungee.api.plugin.Command;
 import net.md_5.bungee.api.plugin.TabExecutor;
+import org.jetbrains.annotations.NotNull;
 
-import java.util.ArrayList;
+import java.util.Collections;
 
 public class BungeeTabCommand extends Command implements TabExecutor {
 
@@ -22,7 +23,7 @@ public class BungeeTabCommand extends Command implements TabExecutor {
     }
 
     @Override
-    public void execute(CommandSender sender, String[] args) {
+    public void execute(@NotNull CommandSender sender, @NotNull String[] args) {
         if (TAB.getInstance().isPluginDisabled()) {
             for (String message : TAB.getInstance().getDisabledCommand().execute(args, sender.hasPermission(TabConstants.Permission.COMMAND_RELOAD), sender.hasPermission(TabConstants.Permission.COMMAND_ALL))) {
                 sender.sendMessage(new TextComponent(EnumChatFormat.color(message)));
@@ -38,11 +39,12 @@ public class BungeeTabCommand extends Command implements TabExecutor {
     }
 
     @Override
-    public Iterable<String> onTabComplete(CommandSender sender, String[] args) {
+    @NotNull
+    public Iterable<String> onTabComplete(@NotNull CommandSender sender, @NotNull String[] args) {
         TabPlayer p = null;
         if (sender instanceof ProxiedPlayer) {
             p = TAB.getInstance().getPlayer(((ProxiedPlayer)sender).getUniqueId());
-            if (p == null) return new ArrayList<>(); //player not loaded correctly
+            if (p == null) return Collections.emptyList(); //player not loaded correctly
         }
         return TAB.getInstance().getCommand().complete(p, args);
     }

bungeecord/src/main/java/me/neznamy/tab/platforms/bungeecord/BungeeTabPlayer.java

@@ -6,66 +6,57 @@ import me.neznamy.tab.shared.ProtocolVersion;
 import me.neznamy.tab.platforms.bungeecord.tablist.BungeeTabList1193;
 import me.neznamy.tab.platforms.bungeecord.tablist.BungeeTabList17;
 import me.neznamy.tab.platforms.bungeecord.tablist.BungeeTabList18;
-import me.neznamy.tab.shared.TAB;
 import me.neznamy.tab.shared.TabConstants;
 import me.neznamy.tab.shared.chat.IChatBaseComponent;
 import me.neznamy.tab.shared.platform.Scoreboard;
 import me.neznamy.tab.shared.platform.TabList;
 import me.neznamy.tab.shared.platform.bossbar.BossBar;
 import me.neznamy.tab.shared.proxy.ProxyTabPlayer;
-import me.neznamy.tab.shared.util.ReflectionUtils;
 import net.md_5.bungee.api.ProxyServer;
 import net.md_5.bungee.api.connection.ProxiedPlayer;
-import net.md_5.bungee.chat.ComponentSerializer;
 import net.md_5.bungee.connection.InitialHandler;
 import net.md_5.bungee.connection.LoginResult;
-import net.md_5.bungee.protocol.DefinedPacket;
 import net.md_5.bungee.protocol.Property;
-import net.md_5.bungee.protocol.Protocol;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
-import java.lang.reflect.Method;
-
 /**
  * TabPlayer implementation for BungeeCord
  */
+@Getter
 public class BungeeTabPlayer extends ProxyTabPlayer {
 
-    /** Inaccessible bungee internals */
-    private static @Nullable Object directionData;
-    private static @Nullable Method getId;
-
     /** Flag tracking plugin presence */
     private static final boolean premiumVanish = ProxyServer.getInstance().getPluginManager().getPlugin("PremiumVanish") != null;
 
-    static {
-        try {
-            directionData = ReflectionUtils.setAccessible(Protocol.class.getDeclaredField("TO_CLIENT")).get(Protocol.GAME);
-            getId = ReflectionUtils.setAccessible(directionData.getClass().getDeclaredMethod("getId", Class.class, int.class));
-        } catch (ReflectiveOperationException e) {
-            TAB.getInstance().getErrorManager().criticalError("Failed to initialize bungee internal fields", e);
-        }
-    }
-
     /** Player's scoreboard */
-    @Getter private final @NotNull Scoreboard<BungeeTabPlayer> scoreboard = new BungeeScoreboard(this);
+    @NotNull
+    private final Scoreboard<BungeeTabPlayer> scoreboard = new BungeeScoreboard(this);
 
     /** Player's tab list based on version */
-    private final @NotNull TabList tabList1_7 = new BungeeTabList17(this);
-    private final @NotNull TabList tabList1_8 = new BungeeTabList18(this);
-    private final @NotNull TabList tabList1_19_3 = new BungeeTabList1193(this);
+    @NotNull
+    private final TabList tabList1_7 = new BungeeTabList17(this);
 
-    @Getter private final @NotNull BossBar bossBar = new BungeeBossBar(this);
+    @NotNull
+    private final TabList tabList1_8 = new BungeeTabList18(this);
+
+    @NotNull
+    private final TabList tabList1_19_3 = new BungeeTabList1193(this);
+
+    /** Player's boss bar view */
+    @NotNull
+    private final BossBar bossBar = new BungeeBossBar(this);
 
     /**
      * Constructs new instance for given player
      *
+     * @param   platform
+     *          Server platform
      * @param   p
      *          BungeeCord player
      */
-    public BungeeTabPlayer(@NotNull ProxiedPlayer p) {
-        super(p, p.getUniqueId(), p.getName(), p.getServer() != null ? p.getServer().getInfo().getName() : "-", -1);
+    public BungeeTabPlayer(@NotNull BungeePlatform platform, @NotNull ProxiedPlayer p) {
+        super(platform, p, p.getUniqueId(), p.getName(), p.getServer() != null ? p.getServer().getInfo().getName() : "-", -1);
     }
 
     @Override
@@ -78,45 +69,44 @@ public class BungeeTabPlayer extends ProxyTabPlayer {
         return getPlayer().getPing();
     }
 
-    public void sendPacket(@NotNull Object nmsPacket) {
-        getPlayer().unsafe().sendPacket((DefinedPacket) nmsPacket);
-    }
-
     @Override
     public void sendMessage(@NotNull IChatBaseComponent message) {
-        getPlayer().sendMessage(ComponentSerializer.parse(message.toString(getVersion())));
+        getPlayer().sendMessage(getPlatform().toComponent(message, getVersion()));
     }
 
     @Override
-    public @Nullable TabList.Skin getSkin() {
+    @Nullable
+    public TabList.Skin getSkin() {
         LoginResult loginResult = ((InitialHandler)getPlayer().getPendingConnection()).getLoginProfile();
         if (loginResult == null) return null;
         Property[] properties = loginResult.getProperties();
-        if (properties == null || properties.length == 0) return null;
+        if (properties == null || properties.length == 0) return null; //Offline mode
         return new TabList.Skin(properties[0].getValue(), properties[0].getSignature());
     }
 
     @Override
-    public @NotNull ProxiedPlayer getPlayer() {
+    @NotNull
+    public ProxiedPlayer getPlayer() {
         return (ProxiedPlayer) player;
     }
 
-    /**
-     * Returns packet ID for this player of provided packet class
-     *
-     * @param   clazz
-     *          packet class
-     * @return  packet ID
-     */
-    public int getPacketId(@NotNull Class<? extends DefinedPacket> clazz) {
-        if (getId == null) return -1;
-        try {
-            return (int) getId.invoke(directionData, clazz, getPlayer().getPendingConnection().getVersion());
-        } catch (ReflectiveOperationException e) {
-            TAB.getInstance().getErrorManager().printError("Failed to get packet id for packet " + clazz +
-                    " with client version " + getPlayer().getPendingConnection().getVersion(), e);
-            return -1;
+    @Override
+    public boolean isOnline() {
+        return getPlayer().isConnected();
+    }
+
+    @Override
+    public BungeePlatform getPlatform() {
+        return (BungeePlatform) platform;
+    }
+
+    @Override
+    public void sendPluginMessage(byte[] message) {
+        if (getPlayer().getServer() == null) {
+            errorNoServer(message);
+            return;
         }
+        getPlayer().getServer().sendData(TabConstants.PLUGIN_MESSAGE_CHANNEL_NAME, message);
     }
 
     /**
@@ -127,35 +117,28 @@ public class BungeeTabPlayer extends ProxyTabPlayer {
      * @return  Player's current protocol version
      */
     @Override
-    public @NotNull ProtocolVersion getVersion() {
+    @NotNull
+    public ProtocolVersion getVersion() {
         return ProtocolVersion.fromNetworkId(getPlayer().getPendingConnection().getVersion());
     }
 
     @Override
     public boolean isVanished() {
-        //noinspection ConstantConditions
-        if (premiumVanish && BungeeVanishAPI.isInvisible(getPlayer())) return true;
+        try {
+            //noinspection ConstantConditions
+            if (premiumVanish && BungeeVanishAPI.isInvisible(getPlayer())) return true;
+        } catch (IllegalStateException ignored) {
+            // PV Bug: PremiumVanish must be enabled to use its API
+        }
         return super.isVanished();
     }
 
     @Override
-    public boolean isOnline() {
-        return getPlayer().isConnected();
-    }
-
-    @Override
-    public @NotNull TabList getTabList() {
-        return getVersion().getNetworkId() >= ProtocolVersion.V1_19_3.getNetworkId() ?
-                tabList1_19_3 : getVersion().getMinorVersion() >= 8 ? tabList1_8 : tabList1_7;
-    }
-
-    @Override
-    public void sendPluginMessage(byte[] message) {
-        if (getPlayer().getServer() == null) {
-            TAB.getInstance().getErrorManager().printError("Skipped plugin message send to " + getName() + ", because player is not" +
-                    "connected to any server (message=" + new String(message) + ")");
-            return;
-        }
-        getPlayer().getServer().sendData(TabConstants.PLUGIN_MESSAGE_CHANNEL_NAME, message);
+    @NotNull
+    public TabList getTabList() {
+        int version = getPlayer().getPendingConnection().getVersion();
+        if (version >= ProtocolVersion.V1_19_3.getNetworkId()) return tabList1_19_3;
+        if (version >= ProtocolVersion.V1_8.getNetworkId()) return tabList1_8;
+        return tabList1_7;
     }
 }

bungeecord/src/main/java/me/neznamy/tab/platforms/bungeecord/features/BungeeRedisSupport.java

@@ -1,24 +1,25 @@
-package me.neznamy.tab.platforms.bungeecord;
+package me.neznamy.tab.platforms.bungeecord.features;
 
 import com.imaginarycode.minecraft.redisbungee.RedisBungeeAPI;
 import com.imaginarycode.minecraft.redisbungee.events.PubSubMessageEvent;
 import lombok.AllArgsConstructor;
+import me.neznamy.tab.platforms.bungeecord.BungeeTAB;
 import me.neznamy.tab.shared.TabConstants;
 import me.neznamy.tab.shared.features.redis.RedisSupport;
 import net.md_5.bungee.api.ProxyServer;
 import net.md_5.bungee.api.plugin.Listener;
-import net.md_5.bungee.api.plugin.Plugin;
 import net.md_5.bungee.event.EventHandler;
 import org.jetbrains.annotations.NotNull;
 
 /**
- * Redis implementation for BungeeCord
+ * RedisBungee implementation for BungeeCord
  */
 @AllArgsConstructor
-public class RedisBungeeSupport extends RedisSupport implements Listener {
+public class BungeeRedisSupport extends RedisSupport implements Listener {
 
     /** Plugin reference for registering listener */
-    private final @NotNull Plugin plugin;
+    @NotNull
+    private final BungeeTAB plugin;
 
     @EventHandler
     public void onMessage(@NotNull PubSubMessageEvent e) {

bungeecord/src/main/java/me/neznamy/tab/platforms/bungeecord/tablist/BungeeTabList1193.java

@@ -25,6 +25,7 @@ import java.util.UUID;
 public class BungeeTabList1193 implements TabList {
 
     /** Player this TabList belongs to */
+    @NotNull
     private final BungeeTabPlayer player;
 
     @Override
@@ -71,7 +72,8 @@ public class BungeeTabList1193 implements TabList {
         sendPacket(EnumSet.allOf(PlayerListItemUpdate.Action.class), item);
     }
 
-    public @NotNull Item item(@NotNull UUID id) {
+    @NotNull
+    public Item item(@NotNull UUID id) {
         Item item = new Item();
         item.setUuid(id);
         return item;
@@ -86,6 +88,9 @@ public class BungeeTabList1193 implements TabList {
 
     @Override
     public void setPlayerListHeaderFooter(@NotNull IChatBaseComponent header, @NotNull IChatBaseComponent footer) {
-        player.getPlayer().setTabHeader(header.toBungeeComponent(player.getVersion()), footer.toBungeeComponent(player.getVersion()));
+        player.getPlayer().setTabHeader(
+                player.getPlatform().toComponent(header, player.getVersion()),
+                player.getPlatform().toComponent(footer, player.getVersion())
+        );
     }
 }

bungeecord/src/main/java/me/neznamy/tab/platforms/bungeecord/tablist/BungeeTabList17.java

@@ -28,10 +28,14 @@ import java.util.UUID;
 public class BungeeTabList17 implements TabList {
 
     /** Player this TabList belongs to */
+    @NotNull
     private final BungeeTabPlayer player;
 
     /** Because entries are identified by names and not uuids on 1.7 */
+    @NotNull
     private final Map<UUID, String> userNames = new HashMap<>();
+
+    @NotNull
     private final Map<UUID, String> displayNames = new HashMap<>();
 
     @Override

bungeecord/src/main/java/me/neznamy/tab/platforms/bungeecord/tablist/BungeeTabList18.java

@@ -23,6 +23,7 @@ import java.util.UUID;
 public class BungeeTabList18 implements TabList {
 
     /** Player this TabList belongs to */
+    @NotNull
     private final BungeeTabPlayer player;
 
     @Override
@@ -66,7 +67,8 @@ public class BungeeTabList18 implements TabList {
         sendPacket(PlayerListItem.Action.ADD_PLAYER, item);
     }
 
-    public @NotNull Item item(@NotNull UUID id) {
+    @NotNull
+    public Item item(@NotNull UUID id) {
         Item item = new Item();
         item.setUuid(id);
         return item;
@@ -81,6 +83,9 @@ public class BungeeTabList18 implements TabList {
 
     @Override
     public void setPlayerListHeaderFooter(@NotNull IChatBaseComponent header, @NotNull IChatBaseComponent footer) {
-        player.getPlayer().setTabHeader(header.toBungeeComponent(player.getVersion()), footer.toBungeeComponent(player.getVersion()));
+        player.getPlayer().setTabHeader(
+                player.getPlatform().toComponent(header, player.getVersion()),
+                player.getPlatform().toComponent(footer, player.getVersion())
+        );
     }
 }

fabric/build.gradle.kts

@@ -1,12 +1,11 @@
-// Versions that don't require any code changes:
-//      1.19.3, 1.19.4, 1.20, 1.20.1
-val minecraftVersion = "1.20.1"
+val minecraftVersion = "1.20.2"
 
 val v114 = "0.28.5+1.14"
 val v115 = "0.28.5+1.15"
 val v116 = "0.42.0+1.16"
 
 val fabricApiVersions = mapOf(
+    "1.20.2" to "0.88.5+1.20.2",
     "1.20.1" to "0.83.0+1.20.1",
     "1.20"   to "0.83.0+1.20",
     "1.19.4" to "0.77.0+1.19.4",
@@ -41,7 +40,7 @@ plugins {
 
 repositories {
     // Gradle doesn't support combining settings and project repositories, so we have to re-declare all the settings repos we need
-    maven("https://repo.kryptonmc.org/releases")
+    maven("https://jitpack.io") // YamlAssist
     maven("https://repo.opencollab.dev/maven-snapshots/")
     maven("https://repo.viaversion.com/")
     maven("https://oss.sonatype.org/content/repositories/snapshots")

fabric/src/main/java/me/neznamy/tab/platforms/fabric/FabricBossBar.java

@@ -15,13 +15,16 @@ import org.jetbrains.annotations.NotNull;
 @RequiredArgsConstructor
 public class FabricBossBar implements BossBar {
 
+    @NotNull
     private final FabricTabPlayer player;
+
+    @NotNull
     private final Map<UUID, ServerBossEvent> bars = new HashMap<>();
 
     @Override
     public void create(@NotNull UUID id, @NotNull String title, float progress, @NotNull BarColor color, @NotNull BarStyle style) {
         ServerBossEvent bar = new ServerBossEvent(
-                FabricTAB.getInstance().toComponent(IChatBaseComponent.optimizedComponent(title), player.getVersion()),
+                player.getPlatform().toComponent(IChatBaseComponent.optimizedComponent(title), player.getVersion()),
                 BossEvent.BossBarColor.valueOf(color.name()),
                 BossEvent.BossBarOverlay.valueOf(style.name())
         );
@@ -32,7 +35,7 @@ public class FabricBossBar implements BossBar {
 
     @Override
     public void update(@NotNull UUID id, @NotNull String title) {
-        bars.get(id).setName(FabricTAB.getInstance().toComponent(IChatBaseComponent.optimizedComponent(title), player.getVersion()));
+        bars.get(id).setName(player.getPlatform().toComponent(IChatBaseComponent.optimizedComponent(title), player.getVersion()));
     }
 
     @Override

fabric/src/main/java/me/neznamy/tab/platforms/fabric/FabricEntityView.java

@@ -0,0 +1,94 @@
+package me.neznamy.tab.platforms.fabric;
+
+import me.neznamy.tab.shared.backend.EntityData;
+import me.neznamy.tab.shared.backend.Location;
+import me.neznamy.tab.shared.backend.entityview.EntityView;
+import net.minecraft.network.protocol.game.*;
+import net.minecraft.network.syncher.SynchedEntityData;
+import net.minecraft.world.entity.Entity;
+import net.minecraft.world.entity.EntityType;
+import net.minecraft.world.entity.decoration.ArmorStand;
+import net.minecraft.world.phys.Vec3;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.List;
+import java.util.UUID;
+
+public record FabricEntityView(FabricTabPlayer player) implements EntityView {
+
+    @NotNull
+    private static final Entity dummyEntity = new ArmorStand(null, 0, 0, 0);
+
+    @Override
+    public void spawnEntity(int entityId, @NotNull UUID id, @NotNull Object entityType, @NotNull Location location,
+                            @NotNull EntityData data) {
+        player.sendPacket(new ClientboundAddEntityPacket(entityId, id,
+                location.getX(), location.getY(), location.getZ(), 0, 0,
+                (EntityType<?>) entityType, 0, Vec3.ZERO, 0));
+        updateEntityMetadata(entityId, data);
+    }
+
+    @Override
+    @SuppressWarnings("unchecked")
+    public void updateEntityMetadata(int entityId, @NotNull EntityData data) {
+        player.sendPacket(new ClientboundSetEntityDataPacket(entityId, (List<SynchedEntityData.DataValue<?>>) data.build()));
+
+    }
+
+    @Override
+    public void teleportEntity(int entityId, @NotNull Location location) {
+        dummyEntity.setId(entityId);
+        dummyEntity.setPos(location.getX(), location.getY(), location.getZ());
+        player.sendPacket(new ClientboundTeleportEntityPacket(dummyEntity));
+    }
+
+    @Override
+    public void destroyEntities(int... entities) {
+        player.sendPacket(new ClientboundRemoveEntitiesPacket(entities));
+    }
+
+    @Override
+    public boolean isDestroyPacket(@NotNull Object packet) {
+        return packet instanceof ClientboundRemoveEntitiesPacket;
+    }
+
+    @Override
+    public boolean isTeleportPacket(@NotNull Object packet) {
+        return packet instanceof ClientboundTeleportEntityPacket;
+    }
+
+    @Override
+    public boolean isNamedEntitySpawnPacket(@NotNull Object packet) {
+        return packet instanceof ClientboundAddEntityPacket;
+    }
+
+    @Override
+    public boolean isMovePacket(@NotNull Object packet) {
+        return packet instanceof ClientboundMoveEntityPacket;
+    }
+
+    @Override
+    public boolean isLookPacket(@NotNull Object packet) {
+        return packet instanceof ClientboundMoveEntityPacket.Rot;
+    }
+
+    @Override
+    public int getTeleportEntityId(@NotNull Object teleportPacket) {
+        return ((ClientboundTeleportEntityPacket) teleportPacket).getId();
+    }
+
+    @Override
+    public int getMoveEntityId(@NotNull Object movePacket) {
+        return ((ClientboundMoveEntityPacket) movePacket).entityId;
+    }
+
+    @Override
+    public int getSpawnedPlayer(@NotNull Object playerSpawnPacket) {
+        return ((ClientboundAddEntityPacket) playerSpawnPacket).getId();
+    }
+
+    @Override
+    public int[] getDestroyedEntities(@NotNull Object destroyPacket) {
+        return ((ClientboundRemoveEntitiesPacket) destroyPacket).getEntityIds().toIntArray();
+    }
+}

fabric/src/main/java/me/neznamy/tab/platforms/fabric/FabricEventListener.java

@@ -1,23 +1,28 @@
 package me.neznamy.tab.platforms.fabric;
 
+import me.neznamy.tab.shared.TAB;
 import me.neznamy.tab.shared.platform.EventListener;
 import me.neznamy.tab.shared.platform.TabPlayer;
+import net.fabricmc.fabric.api.entity.event.v1.ServerEntityWorldChangeEvents;
 import net.fabricmc.fabric.api.entity.event.v1.ServerPlayerEvents;
 import net.fabricmc.fabric.api.networking.v1.ServerPlayConnectionEvents;
 import net.minecraft.server.level.ServerPlayer;
+import org.jetbrains.annotations.NotNull;
 
 public class FabricEventListener extends EventListener<ServerPlayer> {
 
     public void register() {
-        ServerPlayConnectionEvents.JOIN.register((connection, $, $$) -> join(connection.player));
         ServerPlayConnectionEvents.DISCONNECT.register((connection, $) -> quit(connection.player.getUUID()));
+        ServerPlayConnectionEvents.JOIN.register((connection, $, $$) -> join(connection.player));
+        ServerEntityWorldChangeEvents.AFTER_PLAYER_CHANGE_WORLD.register((player, origin, destination) ->
+                worldChange(player.getUUID(), destination.dimension().location().toString()));
+        //TODO command
         ServerPlayerEvents.AFTER_RESPAWN.register((oldPlayer, newPlayer, alive) -> replacePlayer(oldPlayer.getUUID(), newPlayer));
     }
 
     @Override
-    public TabPlayer createPlayer(ServerPlayer player) {
-        return new FabricTabPlayer(player);
+    @NotNull
+    public TabPlayer createPlayer(@NotNull ServerPlayer player) {
+        return new FabricTabPlayer((FabricPlatform) TAB.getInstance().getPlatform(), player);
     }
-
-    //TODO world switch
 }

fabric/src/main/java/me/neznamy/tab/platforms/fabric/FabricPipelineInjector.java

@@ -0,0 +1,129 @@
+package me.neznamy.tab.platforms.fabric;
+
+import com.mojang.authlib.GameProfile;
+import io.netty.channel.Channel;
+import me.neznamy.tab.shared.TAB;
+import me.neznamy.tab.shared.TabConstants;
+import me.neznamy.tab.shared.chat.IChatBaseComponent;
+import me.neznamy.tab.shared.features.injection.NettyPipelineInjector;
+import me.neznamy.tab.shared.features.nametags.NameTag;
+import me.neznamy.tab.shared.features.sorting.Sorting;
+import me.neznamy.tab.shared.platform.TabPlayer;
+import net.minecraft.network.chat.Component;
+import net.minecraft.network.protocol.game.ClientboundPlayerInfoUpdatePacket;
+import net.minecraft.network.protocol.game.ClientboundPlayerInfoUpdatePacket.Action;
+import net.minecraft.network.protocol.game.ClientboundPlayerInfoUpdatePacket.Entry;
+import net.minecraft.network.protocol.game.ClientboundSetDisplayObjectivePacket;
+import net.minecraft.network.protocol.game.ClientboundSetObjectivePacket;
+import net.minecraft.network.protocol.game.ClientboundSetPlayerTeamPacket;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.EnumSet;
+import java.util.List;
+
+public class FabricPipelineInjector extends NettyPipelineInjector {
+
+    public FabricPipelineInjector() {
+        super("packet_handler");
+    }
+
+    @Override
+    @Nullable
+    protected Channel getChannel(@NotNull TabPlayer player) {
+        return ((FabricTabPlayer)player).getPlayer().connection.connection.channel;
+    }
+
+    @Override
+    public void onDisplayObjective(@NotNull TabPlayer player, @NotNull Object packet) {
+        TAB.getInstance().getFeatureManager().onDisplayObjective(player,
+                ((ClientboundSetDisplayObjectivePacket)packet).getSlot().ordinal(),
+                String.valueOf(((ClientboundSetDisplayObjectivePacket)packet).getObjectiveName()));
+    }
+
+    @Override
+    public void onObjective(@NotNull TabPlayer player, @NotNull Object packet) {
+        TAB.getInstance().getFeatureManager().onObjective(player,
+                ((ClientboundSetObjectivePacket)packet).getMethod(),
+                ((ClientboundSetObjectivePacket)packet).getObjectiveName());
+    }
+
+    @Override
+    public boolean isDisplayObjective(@NotNull Object packet) {
+        return packet instanceof ClientboundSetDisplayObjectivePacket;
+    }
+
+    @Override
+    public boolean isObjective(@NotNull Object packet) {
+        return packet instanceof ClientboundSetObjectivePacket;
+    }
+
+    @Override
+    public boolean isTeam(@NotNull Object packet) {
+        return packet instanceof ClientboundSetPlayerTeamPacket;
+    }
+
+    @Override
+    public boolean isPlayerInfo(@NotNull Object packet) {
+        return packet instanceof ClientboundPlayerInfoUpdatePacket;
+    }
+
+    @Override
+    public void onPlayerInfo(@NotNull TabPlayer receiver, @NotNull Object packet0) {
+        ClientboundPlayerInfoUpdatePacket packet = (ClientboundPlayerInfoUpdatePacket) packet0;
+        EnumSet<Action> actions = packet.actions();
+        List<Entry> updatedList = new ArrayList<>();
+        for (Entry nmsData : packet.entries()) {
+            GameProfile profile = nmsData.profile();
+            Component displayName = nmsData.displayName();
+            int latency = nmsData.latency();
+            if (actions.contains(Action.UPDATE_DISPLAY_NAME)) {
+                IChatBaseComponent newDisplayName = TAB.getInstance().getFeatureManager().onDisplayNameChange(receiver, nmsData.profileId());
+                if (newDisplayName != null) displayName = ((FabricTabPlayer)receiver).getPlatform().toComponent(newDisplayName, receiver.getVersion());
+            }
+            if (actions.contains(Action.UPDATE_LATENCY)) {
+                latency = TAB.getInstance().getFeatureManager().onLatencyChange(receiver, nmsData.profileId(), latency);
+            }
+            if (actions.contains(Action.ADD_PLAYER)) {
+                TAB.getInstance().getFeatureManager().onEntryAdd(receiver, nmsData.profileId(), profile.getName());
+            }
+            updatedList.add(new Entry(nmsData.profileId(), profile, nmsData.listed(), latency, nmsData.gameMode(), displayName, nmsData.chatSession()));
+        }
+        packet.entries = updatedList;
+    }
+
+    @Override
+    public void modifyPlayers(@NotNull Object teamPacket) {
+        if (TAB.getInstance().getNameTagManager() == null) return;
+        ClientboundSetPlayerTeamPacket packet = (ClientboundSetPlayerTeamPacket) teamPacket;
+        int action = packet.method;
+        if (action == 1 || action == 2 || action == 4) return;
+        Collection<String> players = packet.getPlayers();
+        String teamName = packet.getName();
+        if (players == null) return;
+        //creating a new list to prevent NoSuchFieldException in minecraft packet encoder when a player is removed
+        Collection<String> newList = new ArrayList<>();
+        for (String entry : players) {
+            TabPlayer p = getPlayer(entry);
+            if (p == null) {
+                newList.add(entry);
+                continue;
+            }
+            Sorting sorting = TAB.getInstance().getFeatureManager().getFeature(TabConstants.Feature.SORTING);
+            String expectedTeam = sorting.getShortTeamName(p);
+            if (expectedTeam == null) {
+                newList.add(entry);
+                continue;
+            }
+            if (!((NameTag)TAB.getInstance().getNameTagManager()).getDisableChecker().isDisabledPlayer(p) &&
+                    !TAB.getInstance().getNameTagManager().hasTeamHandlingPaused(p) && !teamName.equals(expectedTeam)) {
+                logTeamOverride(teamName, p.getName(), expectedTeam);
+            } else {
+                newList.add(entry);
+            }
+        }
+        packet.players = newList;
+    }
+}

fabric/src/main/java/me/neznamy/tab/platforms/fabric/FabricPlaceholderRegistry.java

@@ -1,16 +0,0 @@
-package me.neznamy.tab.platforms.fabric;
-
-import me.neznamy.tab.api.placeholder.PlaceholderManager;
-import me.neznamy.tab.shared.TabConstants;
-import me.neznamy.tab.shared.placeholders.UniversalPlaceholderRegistry;
-import net.minecraft.server.level.ServerPlayer;
-import org.jetbrains.annotations.NotNull;
-
-public class FabricPlaceholderRegistry extends UniversalPlaceholderRegistry {
-
-    @Override
-    public void registerPlaceholders(@NotNull PlaceholderManager manager) {
-        manager.registerPlayerPlaceholder(TabConstants.Placeholder.HEALTH, 100, p -> (int) Math.ceil(((ServerPlayer) p.getPlayer()).getHealth()));
-        super.registerPlaceholders(manager);
-    }
-}

fabric/src/main/java/me/neznamy/tab/platforms/fabric/FabricPlatform.java

@@ -1,6 +1,9 @@
 package me.neznamy.tab.platforms.fabric;
 
+import me.neznamy.tab.platforms.fabric.features.FabricNameTagX;
+import me.neznamy.tab.shared.ProtocolVersion;
 import me.neznamy.tab.shared.TAB;
+import me.neznamy.tab.shared.TabConstants;
 import me.neznamy.tab.shared.backend.BackendPlatform;
 import me.neznamy.tab.shared.chat.IChatBaseComponent;
 import me.neznamy.tab.shared.features.injection.PipelineInjector;
@@ -9,13 +12,27 @@ import me.neznamy.tab.shared.features.types.TabFeature;
 import me.neznamy.tab.shared.placeholders.expansion.EmptyTabExpansion;
 import me.neznamy.tab.shared.placeholders.expansion.TabExpansion;
 import net.fabricmc.fabric.api.networking.v1.PlayerLookup;
+import net.fabricmc.loader.api.FabricLoader;
+import net.minecraft.ChatFormatting;
 import net.minecraft.SharedConstants;
+import net.minecraft.network.chat.Component;
+import net.minecraft.network.chat.MutableComponent;
+import net.minecraft.network.chat.Style;
+import net.minecraft.network.chat.contents.LiteralContents;
+import net.minecraft.resources.ResourceLocation;
 import net.minecraft.server.MinecraftServer;
 import net.minecraft.server.level.ServerPlayer;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
-public final class FabricPlatform implements BackendPlatform {
+import java.io.File;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Platform implementation for Fabric
+ */
+public record FabricPlatform(MinecraftServer server) implements BackendPlatform<Component> {
 
     @Override
     public void registerUnknownPlaceholder(@NotNull String identifier) {
@@ -24,43 +41,115 @@ public final class FabricPlatform implements BackendPlatform {
 
     @Override
     public void loadPlayers() {
-        for (ServerPlayer player : PlayerLookup.all(FabricTAB.getInstance().getServer())) {
-            TAB.getInstance().addPlayer(new FabricTabPlayer(player));
+        for (ServerPlayer player : PlayerLookup.all(server)) {
+            TAB.getInstance().addPlayer(new FabricTabPlayer(this, player));
         }
     }
 
     @Override
-    public void registerPlaceholders() {
-        new FabricPlaceholderRegistry().registerPlaceholders(TAB.getInstance().getPlaceholderManager());
+    @NotNull
+    public PipelineInjector createPipelineInjector() {
+        return new FabricPipelineInjector();
     }
 
     @Override
-    public @NotNull NameTag getUnlimitedNameTags() {
-        return new NameTag();
+    @NotNull
+    public NameTag getUnlimitedNameTags() {
+        return new FabricNameTagX();
     }
 
     @Override
-    public @Nullable PipelineInjector createPipelineInjector() {
-        return null;
-    }
-
-    @Override
-    public @NotNull TabExpansion createTabExpansion() {
+    @NotNull
+    public TabExpansion createTabExpansion() {
         return new EmptyTabExpansion();
     }
 
     @Override
-    public @Nullable TabFeature getPerWorldPlayerList() {
+    @Nullable
+    public TabFeature getPerWorldPlayerList() {
         return null;
     }
 
     @Override
-    public void sendConsoleMessage(@NotNull IChatBaseComponent message) {
+    public void logInfo(@NotNull IChatBaseComponent message) {
         MinecraftServer.LOGGER.info("[TAB] " + message.toRawText());
     }
 
     @Override
+    public void logWarn(@NotNull IChatBaseComponent message) {
+        MinecraftServer.LOGGER.warn("[TAB] " + message.toRawText()); // Fabric console does not support colors
+    }
+
+    @Override
+    @NotNull
     public String getServerVersionInfo() {
         return "[Fabric] " + SharedConstants.getCurrentVersion().getName();
     }
+
+    @Override
+    public void registerListener() {
+        new FabricEventListener().register();
+    }
+
+    @Override
+    public void registerCommand() {
+        // Event listener must be registered in main class
+    }
+
+    @Override
+    public void startMetrics() {
+        // Not available
+    }
+
+    @Override
+    @NotNull
+    public ProtocolVersion getServerVersion() {
+        return ProtocolVersion.fromFriendlyName(SharedConstants.getCurrentVersion().getName());
+    }
+
+    @Override
+    @NotNull
+    public File getDataFolder() {
+        return FabricLoader.getInstance().getConfigDir().resolve(TabConstants.PLUGIN_ID).toFile();
+    }
+
+    @Override
+    public Component toComponent(@NotNull IChatBaseComponent component, @NotNull ProtocolVersion version) {
+        // Text
+        MutableComponent comp = MutableComponent.create(new LiteralContents(component.getText()));
+
+        // Color and style
+        List<ChatFormatting> formats = new ArrayList<>();
+        if (component.getModifier().isUnderlined())     formats.add(ChatFormatting.UNDERLINE);
+        if (component.getModifier().isObfuscated())     formats.add(ChatFormatting.OBFUSCATED);
+        if (component.getModifier().isStrikethrough())  formats.add(ChatFormatting.STRIKETHROUGH);
+        if (component.getModifier().isItalic())         formats.add(ChatFormatting.ITALIC);
+        if (component.getModifier().isBold())           formats.add(ChatFormatting.BOLD);
+        Style style = comp.getStyle().applyFormats(formats.toArray(new ChatFormatting[0]));
+        if (component.getModifier().getColor() != null) {
+            if (version.getMinorVersion() >= 16) {
+                style = style.withColor(component.getModifier().getColor().getRgb());
+            } else {
+                style = style.withColor(ChatFormatting.valueOf(component.getModifier().getColor().getLegacyColor().name()));
+            }
+        }
+        if (component.getModifier().getFont() != null)
+            style = style.withFont(new ResourceLocation(component.getModifier().getFont()));
+        comp.withStyle(style);
+
+        // Extra
+        comp.getSiblings().addAll(component.getExtra().stream().map(c -> toComponent(c, version)).toList());
+
+        return comp;
+    }
+
+    @Override
+    public double getTPS() {
+        return -1; // Not available
+    }
+
+    @Override
+    public double getMSPT() {
+        return server.getAverageTickTime();
+    }
 }

fabric/src/main/java/me/neznamy/tab/platforms/fabric/FabricScoreboard.java

@@ -1,7 +1,6 @@
 package me.neznamy.tab.platforms.fabric;
 
 import java.util.Collection;
-import java.util.Objects;
 
 import me.neznamy.tab.shared.chat.EnumChatFormat;
 import me.neznamy.tab.shared.chat.IChatBaseComponent;
@@ -21,8 +20,8 @@ import org.jetbrains.annotations.NotNull;
 
 public class FabricScoreboard extends Scoreboard<FabricTabPlayer> {
 
-    private final @NotNull net.minecraft.world.scores.Scoreboard dummyScoreboard = new net.minecraft.world.scores.Scoreboard();
-    private final @NotNull Component EMPTY_COMPONENT = Objects.requireNonNull(Component.Serializer.fromJson(IChatBaseComponent.EMPTY_COMPONENT));
+    @NotNull
+    private static final net.minecraft.world.scores.Scoreboard dummyScoreboard = new net.minecraft.world.scores.Scoreboard();
 
     public FabricScoreboard(FabricTabPlayer player) {
         super(player);
@@ -32,12 +31,12 @@ public class FabricScoreboard extends Scoreboard<FabricTabPlayer> {
     public void setDisplaySlot(@NotNull DisplaySlot slot, @NotNull String objective) {
         player.sendPacket(
                 new ClientboundSetDisplayObjectivePacket(
-                        slot.ordinal(),
+                        net.minecraft.world.scores.DisplaySlot.values()[slot.ordinal()],
                         new Objective(
                                 dummyScoreboard,
                                 objective,
                                 ObjectiveCriteria.DUMMY,
-                                EMPTY_COMPONENT,
+                                Component.empty(),
                                 ObjectiveCriteria.RenderType.INTEGER
                         )
                 )
@@ -45,15 +44,15 @@ public class FabricScoreboard extends Scoreboard<FabricTabPlayer> {
     }
 
     @Override
-    public void registerObjective0(@NotNull String objectiveName, @NotNull String title, boolean hearts) {
+    public void registerObjective0(@NotNull String objectiveName, @NotNull String title, @NotNull HealthDisplay display) {
         player.sendPacket(
                 new ClientboundSetObjectivePacket(
                         new Objective(
-                            dummyScoreboard,
-                            objectiveName,
-                            ObjectiveCriteria.DUMMY,
-                            FabricTAB.getInstance().toComponent(IChatBaseComponent.optimizedComponent(title), player.getVersion()),
-                            hearts ? ObjectiveCriteria.RenderType.HEARTS : ObjectiveCriteria.RenderType.INTEGER
+                                dummyScoreboard,
+                                objectiveName,
+                                ObjectiveCriteria.DUMMY,
+                                player.getPlatform().toComponent(IChatBaseComponent.optimizedComponent(title), player.getVersion()),
+                                ObjectiveCriteria.RenderType.valueOf(display.name())
                         ),
                         0
                 )
@@ -68,7 +67,7 @@ public class FabricScoreboard extends Scoreboard<FabricTabPlayer> {
                                 dummyScoreboard,
                                 objectiveName,
                                 ObjectiveCriteria.DUMMY,
-                                EMPTY_COMPONENT,
+                                Component.empty(),
                                 ObjectiveCriteria.RenderType.INTEGER
                         ),
                         1
@@ -77,15 +76,15 @@ public class FabricScoreboard extends Scoreboard<FabricTabPlayer> {
     }
 
     @Override
-    public void updateObjective0(@NotNull String objectiveName, @NotNull String title, boolean hearts) {
+    public void updateObjective0(@NotNull String objectiveName, @NotNull String title, @NotNull HealthDisplay display) {
         player.sendPacket(
                 new ClientboundSetObjectivePacket(
                         new Objective(
-                            dummyScoreboard,
-                            objectiveName,
-                            ObjectiveCriteria.DUMMY,
-                            FabricTAB.getInstance().toComponent(IChatBaseComponent.optimizedComponent(title), player.getVersion()),
-                            hearts ? ObjectiveCriteria.RenderType.HEARTS : ObjectiveCriteria.RenderType.INTEGER
+                                dummyScoreboard,
+                                objectiveName,
+                                ObjectiveCriteria.DUMMY,
+                                player.getPlatform().toComponent(IChatBaseComponent.optimizedComponent(title), player.getVersion()),
+                                ObjectiveCriteria.RenderType.valueOf(display.name())
                         ),
                         2
                 )
@@ -93,15 +92,17 @@ public class FabricScoreboard extends Scoreboard<FabricTabPlayer> {
     }
 
     @Override
-    public void registerTeam0(@NotNull String name, @NotNull String prefix, @NotNull String suffix, @NotNull NameVisibility visibility, @NotNull CollisionRule collision, @NotNull Collection<String> players, int options) {
+    public void registerTeam0(@NotNull String name, @NotNull String prefix, @NotNull String suffix,
+                              @NotNull NameVisibility visibility, @NotNull CollisionRule collision,
+                              @NotNull Collection<String> players, int options) {
         PlayerTeam team = new PlayerTeam(dummyScoreboard, name);
         team.setAllowFriendlyFire((options & 0x01) > 0);
         team.setSeeFriendlyInvisibles((options & 0x02) > 0);
         team.setColor(ChatFormatting.valueOf(EnumChatFormat.lastColorsOf(prefix).name()));
         team.setCollisionRule(Team.CollisionRule.valueOf(collision.name()));
         team.setNameTagVisibility(Team.Visibility.valueOf(visibility.name()));
-        team.setPlayerPrefix(FabricTAB.getInstance().toComponent(IChatBaseComponent.optimizedComponent(prefix), player.getVersion()));
-        team.setPlayerSuffix(FabricTAB.getInstance().toComponent(IChatBaseComponent.optimizedComponent(suffix), player.getVersion()));
+        team.setPlayerPrefix(player.getPlatform().toComponent(IChatBaseComponent.optimizedComponent(prefix), player.getVersion()));
+        team.setPlayerSuffix(player.getPlatform().toComponent(IChatBaseComponent.optimizedComponent(suffix), player.getVersion()));
         team.getPlayers().addAll(players);
         player.sendPacket(ClientboundSetPlayerTeamPacket.createAddOrModifyPacket(team, true));
     }
@@ -112,15 +113,16 @@ public class FabricScoreboard extends Scoreboard<FabricTabPlayer> {
     }
 
     @Override
-    public void updateTeam0(@NotNull String name, @NotNull String prefix, @NotNull String suffix, @NotNull NameVisibility visibility, @NotNull CollisionRule collision, int options) {
+    public void updateTeam0(@NotNull String name, @NotNull String prefix, @NotNull String suffix,
+                            @NotNull NameVisibility visibility, @NotNull CollisionRule collision, int options) {
         PlayerTeam team = new PlayerTeam(dummyScoreboard, name);
-        team.setAllowFriendlyFire((options & 0x01) > 0);
-        team.setSeeFriendlyInvisibles((options & 0x02) > 0);
+        team.setAllowFriendlyFire((options & 0x01) != 0);
+        team.setSeeFriendlyInvisibles((options & 0x02) != 0);
         team.setColor(ChatFormatting.valueOf(EnumChatFormat.lastColorsOf(prefix).name()));
         team.setCollisionRule(Team.CollisionRule.valueOf(collision.name()));
         team.setNameTagVisibility(Team.Visibility.valueOf(visibility.name()));
-        team.setPlayerPrefix(FabricTAB.getInstance().toComponent(IChatBaseComponent.optimizedComponent(prefix), player.getVersion()));
-        team.setPlayerSuffix(FabricTAB.getInstance().toComponent(IChatBaseComponent.optimizedComponent(suffix), player.getVersion()));
+        team.setPlayerPrefix(player.getPlatform().toComponent(IChatBaseComponent.optimizedComponent(prefix), player.getVersion()));
+        team.setPlayerSuffix(player.getPlatform().toComponent(IChatBaseComponent.optimizedComponent(suffix), player.getVersion()));
         player.sendPacket(ClientboundSetPlayerTeamPacket.createAddOrModifyPacket(team, false));
     }
 

fabric/src/main/java/me/neznamy/tab/platforms/fabric/FabricTAB.java

@@ -1,53 +1,26 @@
 package me.neznamy.tab.platforms.fabric;
 
-import lombok.Getter;
 import me.lucko.fabric.api.permissions.v0.Permissions;
-import me.neznamy.tab.shared.ProtocolVersion;
 import me.neznamy.tab.shared.TAB;
-import me.neznamy.tab.shared.TabConstants;
-import me.neznamy.tab.shared.chat.IChatBaseComponent;
-import me.neznamy.tab.shared.util.ComponentCache;
 import net.fabricmc.api.DedicatedServerModInitializer;
 import net.fabricmc.fabric.api.command.v2.CommandRegistrationCallback;
 import net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents;
 import net.fabricmc.loader.api.FabricLoader;
-import net.minecraft.SharedConstants;
 import net.minecraft.commands.CommandSourceStack;
-import net.minecraft.network.chat.Component;
-import net.minecraft.server.MinecraftServer;
 import org.jetbrains.annotations.NotNull;
 
-import java.io.File;
-
 public class FabricTAB implements DedicatedServerModInitializer {
 
-    private final ComponentCache<IChatBaseComponent, Component> componentCache = new ComponentCache<>(1000,
-            (text, version) -> Component.Serializer.fromJson(text.toString(version)));
-
-    @Getter private static FabricTAB instance;
-    private final boolean fabricPermissionsApi = FabricLoader.getInstance().isModLoaded("fabric-permissions-api-v0");
-    @Getter private MinecraftServer server;
+    private static final boolean fabricPermissionsApi = FabricLoader.getInstance().isModLoaded("fabric-permissions-api-v0");
 
     @Override
     public void onInitializeServer() {
-        instance = this;
-        ProtocolVersion protocolVersion = ProtocolVersion.fromNetworkId(SharedConstants.getCurrentVersion().getProtocolVersion());
-        File folder = FabricLoader.getInstance().getConfigDir().resolve(TabConstants.PLUGIN_ID).toFile();
-        TAB.setInstance(new TAB(new FabricPlatform(), protocolVersion, folder));
-        new FabricEventListener().register();
-        ServerLifecycleEvents.SERVER_STARTING.register(server -> {
-            this.server = server;
-            TAB.getInstance().load();
-        });
-        ServerLifecycleEvents.SERVER_STOPPING.register(server -> TAB.getInstance().unload());
         CommandRegistrationCallback.EVENT.register((dispatcher, $, $$) -> new FabricTabCommand().onRegisterCommands(dispatcher));
+        ServerLifecycleEvents.SERVER_STARTING.register(server -> TAB.create(new FabricPlatform(server)));
+        ServerLifecycleEvents.SERVER_STOPPING.register($ -> TAB.getInstance().unload());
     }
 
-    public Component toComponent(@NotNull IChatBaseComponent component, @NotNull ProtocolVersion clientVersion) {
-        return componentCache.get(component, clientVersion);
-    }
-
-    public boolean hasPermission(@NotNull CommandSourceStack source, @NotNull String permission) {
+    public static boolean hasPermission(@NotNull CommandSourceStack source, @NotNull String permission) {
         if (source.hasPermission(4)) return true;
         return fabricPermissionsApi && Permissions.check(source, permission);
     }

fabric/src/main/java/me/neznamy/tab/platforms/fabric/FabricTabCommand.java

@@ -13,7 +13,6 @@ import me.neznamy.tab.shared.chat.IChatBaseComponent;
 import me.neznamy.tab.shared.platform.TabPlayer;
 import net.minecraft.commands.CommandSourceStack;
 import net.minecraft.commands.Commands;
-import net.minecraft.network.chat.Component;
 import org.jetbrains.annotations.NotNull;
 
 import java.util.Arrays;
@@ -33,6 +32,7 @@ public class FabricTabCommand {
         dispatcher.getRoot().addChild(command);
     }
 
+    @NotNull
     private String[] getArguments(@NotNull CommandContext<CommandSourceStack> context) {
         String input = context.getInput();
         int firstSpace = input.indexOf(' ');
@@ -48,10 +48,10 @@ public class FabricTabCommand {
 
     private int executeCommand(@NotNull CommandSourceStack source, @NotNull String[] args) {
         if (TAB.getInstance().isPluginDisabled()) {
-            boolean hasReloadPermission = FabricTAB.getInstance().hasPermission(source, TabConstants.Permission.COMMAND_RELOAD);
-            boolean hasAdminPermission = FabricTAB.getInstance().hasPermission(source, TabConstants.Permission.COMMAND_ALL);
+            boolean hasReloadPermission = FabricTAB.hasPermission(source, TabConstants.Permission.COMMAND_RELOAD);
+            boolean hasAdminPermission = FabricTAB.hasPermission(source, TabConstants.Permission.COMMAND_ALL);
             for (String message : TAB.getInstance().getDisabledCommand().execute(args, hasReloadPermission, hasAdminPermission)) {
-                source.sendSystemMessage(Component.Serializer.fromJson(IChatBaseComponent.optimizedComponent(message).toString()));
+                source.sendSystemMessage(((FabricPlatform)TAB.getInstance().getPlatform()).toComponent(IChatBaseComponent.optimizedComponent(message), TAB.getInstance().getServerVersion()));
             }
         } else {
             if (source.getEntity() == null) {
@@ -64,20 +64,23 @@ public class FabricTabCommand {
         return 0;
     }
 
-    private @NotNull CompletableFuture<Suggestions> getSuggestions(@NotNull CommandSourceStack source, @NotNull String[] args, @NotNull SuggestionsBuilder builder) {
+    @NotNull
+    private CompletableFuture<Suggestions> getSuggestions(@NotNull CommandSourceStack source, @NotNull String[] args,
+                                                          @NotNull SuggestionsBuilder builder) {
         TabPlayer player = null;
         if (source.getEntity() != null) {
             player = TAB.getInstance().getPlayer(source.getEntity().getUUID());
             if (player == null) return Suggestions.empty();
         }
 
-        int lastSpace = builder.getRemaining().lastIndexOf(' ');
+        SuggestionsBuilder newBuilder = builder;
+        int lastSpace = newBuilder.getRemaining().lastIndexOf(' ');
         if (lastSpace != -1) {
-            builder = builder.createOffset(lastSpace + 1 + builder.getStart());
+            newBuilder = newBuilder.createOffset(lastSpace + 1 + newBuilder.getStart());
         }
         for (String suggestion : TAB.getInstance().getCommand().complete(player, args)) {
-            builder.suggest(suggestion);
+            newBuilder.suggest(suggestion);
         }
-        return builder.buildFuture();
+        return newBuilder.buildFuture();
     }
 }

fabric/src/main/java/me/neznamy/tab/platforms/fabric/FabricTabList.java

@@ -17,7 +17,7 @@ import org.jetbrains.annotations.Nullable;
 
 import java.util.*;
 
-public record FabricTabList(FabricTabPlayer player) implements TabList {
+public record FabricTabList(@NotNull FabricTabPlayer player) implements TabList {
 
     @Override
     public void removeEntry(@NotNull UUID entry) {
@@ -27,7 +27,7 @@ public record FabricTabList(FabricTabPlayer player) implements TabList {
     @Override
     public void updateDisplayName(@NotNull UUID entry, @Nullable IChatBaseComponent displayName) {
         player.sendPacket(build(EnumSet.of(ClientboundPlayerInfoUpdatePacket.Action.UPDATE_DISPLAY_NAME),
-                new Builder(entry).setDisplayName(displayName == null ? null : FabricTAB.getInstance().toComponent(displayName, player.getVersion()))));
+                new Builder(entry).setDisplayName(displayName == null ? null : player.getPlatform().toComponent(displayName, player.getVersion()))));
     }
 
     @Override
@@ -47,18 +47,19 @@ public record FabricTabList(FabricTabPlayer player) implements TabList {
                 .setSkin(entry.getSkin())
                 .setGameMode(entry.getGameMode())
                 .setLatency(entry.getLatency())
-                .setDisplayName(entry.getDisplayName() == null ? null : FabricTAB.getInstance().toComponent(entry.getDisplayName(), player.getVersion()))));
+                .setDisplayName(entry.getDisplayName() == null ? null : player.getPlatform().toComponent(entry.getDisplayName(), player.getVersion()))));
     }
 
     @Override
     public void setPlayerListHeaderFooter(@NotNull IChatBaseComponent header, @NotNull IChatBaseComponent footer) {
         player.getPlayer().connection.send(new ClientboundTabListPacket(
-                FabricTAB.getInstance().toComponent(header, player.getVersion()),
-                FabricTAB.getInstance().toComponent(footer, player.getVersion()))
+                player.getPlatform().toComponent(header, player.getVersion()),
+                player.getPlatform().toComponent(footer, player.getVersion()))
         );
     }
 
-    private Packet<?> build(EnumSet<ClientboundPlayerInfoUpdatePacket.Action> actions, FabricTabList.Builder entry) {
+    @NotNull
+    private Packet<?> build(@NotNull EnumSet<ClientboundPlayerInfoUpdatePacket.Action> actions, @NotNull FabricTabList.Builder entry) {
         ClientboundPlayerInfoUpdatePacket packet = new ClientboundPlayerInfoUpdatePacket(actions, Collections.emptyList());
         packet.entries = Collections.singletonList(new ClientboundPlayerInfoUpdatePacket.Entry(
                 entry.getId(),
@@ -83,32 +84,39 @@ public record FabricTabList(FabricTabPlayer player) implements TabList {
         private int gameMode;
         @Nullable private Component displayName;
 
-        public Builder setName(String name) {
+        @NotNull
+        public Builder setName(@Nullable String name) {
             this.name = name;
             return this;
         }
 
-        public Builder setSkin(Skin skin) {
+        @NotNull
+        public Builder setSkin(@Nullable Skin skin) {
             this.skin = skin;
             return this;
         }
 
+        @NotNull
         public Builder setLatency(int latency) {
             this.latency = latency;
             return this;
         }
 
+        @NotNull
         public Builder setGameMode(int gameMode) {
             this.gameMode = gameMode;
             return this;
         }
 
-        public Builder setDisplayName(Component displayName) {
+        @NotNull
+        public Builder setDisplayName(@Nullable Component displayName) {
             this.displayName = displayName;
             return this;
         }
 
+        @Nullable
         public GameProfile createProfile() {
+            if (name == null) return null;
             GameProfile profile = new GameProfile(id, name);
             if (skin != null) {
                 profile.getProperties().put(TabList.TEXTURES_PROPERTY,

fabric/src/main/java/me/neznamy/tab/platforms/fabric/FabricTabPlayer.java

@@ -1,46 +1,52 @@
 package me.neznamy.tab.platforms.fabric;
 
 import com.mojang.authlib.properties.Property;
-import java.util.Collection;
-
 import lombok.Getter;
-import me.neznamy.tab.shared.TAB;
+import me.neznamy.tab.shared.backend.BackendTabPlayer;
+import me.neznamy.tab.shared.backend.entityview.EntityView;
 import me.neznamy.tab.shared.chat.IChatBaseComponent;
-import me.neznamy.tab.shared.hook.ViaVersionHook;
-import me.neznamy.tab.shared.platform.bossbar.BossBar;
 import me.neznamy.tab.shared.platform.Scoreboard;
-import me.neznamy.tab.shared.platform.TabPlayer;
 import me.neznamy.tab.shared.platform.TabList;
+import me.neznamy.tab.shared.platform.bossbar.BossBar;
 import net.minecraft.network.protocol.Packet;
 import net.minecraft.server.level.ServerPlayer;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
-@Getter
-public class FabricTabPlayer extends TabPlayer {
+import java.util.Collection;
 
+@Getter
+public class FabricTabPlayer extends BackendTabPlayer {
+
+    @NotNull
     private final Scoreboard<FabricTabPlayer> scoreboard = new FabricScoreboard(this);
+
+    @NotNull
     private final TabList tabList = new FabricTabList(this);
+
+    @NotNull
     private final BossBar bossBar = new FabricBossBar(this);
 
-    public FabricTabPlayer(ServerPlayer player) {
-        super(player, player.getUUID(), player.getGameProfile().getName(), TAB.getInstance().getConfiguration().getServerName(),
-                "N/A", ViaVersionHook.getInstance().getPlayerVersion(player.getUUID(), player.getGameProfile().getName()), true);
+    @NotNull
+    private final EntityView entityView = new FabricEntityView(this);
+
+    public FabricTabPlayer(@NotNull FabricPlatform platform, @NotNull ServerPlayer player) {
+        super(platform, player, player.getUUID(), player.getGameProfile().getName(), player.level().dimension().location().toString());
     }
 
     @Override
     public boolean hasPermission(@NotNull String permission) {
-        return FabricTAB.getInstance().hasPermission(getPlayer().createCommandSourceStack(), permission);
+        return FabricTAB.hasPermission(getPlayer().createCommandSourceStack(), permission);
     }
 
     @Override
     public int getPing() {
-        return getPlayer().latency;
+        return getPlayer().connection.latency();
     }
 
     @Override
     public void sendMessage(@NotNull IChatBaseComponent message) {
-        getPlayer().sendSystemMessage(FabricTAB.getInstance().toComponent(message, getVersion()));
+        getPlayer().sendSystemMessage(getPlatform().toComponent(message, getVersion()));
     }
 
     @Override
@@ -54,27 +60,30 @@ public class FabricTabPlayer extends TabPlayer {
     }
 
     @Override
-    public @Nullable TabList.Skin getSkin() {
+    @Nullable
+    public TabList.Skin getSkin() {
         Collection<Property> properties = getPlayer().getGameProfile().getProperties().get(TabList.TEXTURES_PROPERTY);
-        if (properties.isEmpty()) return null;
+        if (properties.isEmpty()) return null; // Offline mode
         Property skinProperty = properties.iterator().next();
-        return new TabList.Skin(skinProperty.getValue(), skinProperty.getSignature());
+        return new TabList.Skin(skinProperty.value(), skinProperty.signature());
     }
 
     @Override
-    public @NotNull ServerPlayer getPlayer() {
+    @NotNull
+    public ServerPlayer getPlayer() {
         return (ServerPlayer) player;
     }
 
-    public void sendPacket(Packet<?> packet) {
-        getPlayer().connection.send(packet);
-    }
-
     @Override
     public boolean isOnline() {
         return true;
     }
 
+    @Override
+    public FabricPlatform getPlatform() {
+        return (FabricPlatform) platform;
+    }
+
     @Override
     public boolean isVanished() {
         return false;
@@ -84,4 +93,25 @@ public class FabricTabPlayer extends TabPlayer {
     public int getGamemode() {
         return getPlayer().gameMode.getGameModeForPlayer().getId();
     }
+
+    @Override
+    public double getHealth() {
+        return getPlayer().getHealth();
+    }
+
+    @Override
+    @NotNull
+    public String getDisplayName() {
+        return getPlayer().getDisplayName().getString(); // Will make it work properly if someone asks
+    }
+
+    /**
+     * Sends packet to the player
+     *
+     * @param   packet
+     *          Packet to send
+     */
+    public void sendPacket(@NotNull Packet<?> packet) {
+        getPlayer().connection.send(packet);
+    }
 }

fabric/src/main/java/me/neznamy/tab/platforms/fabric/features/FabricNameTagX.java

@@ -0,0 +1,140 @@
+package me.neznamy.tab.platforms.fabric.features;
+
+import me.neznamy.tab.platforms.fabric.FabricTabPlayer;
+import me.neznamy.tab.shared.backend.EntityData;
+import me.neznamy.tab.shared.backend.features.unlimitedtags.BackendNameTagX;
+import me.neznamy.tab.shared.chat.IChatBaseComponent;
+import me.neznamy.tab.shared.platform.TabPlayer;
+import net.fabricmc.fabric.api.entity.event.v1.ServerPlayerEvents;
+import net.minecraft.network.syncher.EntityDataSerializers;
+import net.minecraft.network.syncher.SynchedEntityData;
+import net.minecraft.world.entity.Entity;
+import net.minecraft.world.entity.EntityType;
+import net.minecraft.world.phys.Vec3;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+import java.util.Arrays;
+import java.util.List;
+import java.util.Optional;
+import java.util.stream.Collectors;
+
+public class FabricNameTagX extends BackendNameTagX {
+
+    private boolean enabled = true;
+
+    public FabricNameTagX() {
+        ServerPlayerEvents.AFTER_RESPAWN.register((oldPlayer, newPlayer, alive) -> {
+            if (enabled) respawn(oldPlayer.getUUID());
+        });
+        // no sneaking for fabric //TODO
+    }
+
+    @Override
+    public double getDistance(@NotNull TabPlayer player1, @NotNull TabPlayer player2) {
+        Vec3 loc1 = ((FabricTabPlayer)player1).getPlayer().position();
+        Vec3 loc2 = ((FabricTabPlayer)player2).getPlayer().position();
+        return Math.sqrt(Math.pow(loc1.x-loc2.x, 2) + Math.pow(loc1.z-loc2.z, 2));
+    }
+
+    @Override
+    public boolean areInSameWorld(@NotNull TabPlayer player1, @NotNull TabPlayer player2) {
+        return ((FabricTabPlayer)player1).getPlayer().level() == ((FabricTabPlayer)player2).getPlayer().level();
+    }
+
+    @Override
+    public boolean canSee(@NotNull TabPlayer viewer, @NotNull TabPlayer target) {
+        return true;
+    }
+
+    @Override
+    public void unregisterListener() {
+        enabled = false;
+    }
+
+    @Override
+    @NotNull
+    public List<Integer> getPassengers(@NotNull Object vehicle) {
+        return ((Entity)vehicle).getPassengers().stream().map(Entity::getId).collect(Collectors.toList());
+    }
+
+    @Override
+    @Nullable
+    public Object getVehicle(@NotNull TabPlayer player) {
+        return ((FabricTabPlayer)player).getPlayer().getVehicle();
+    }
+
+    @Override
+    public int getEntityId(@NotNull Object entity) {
+        return ((Entity)entity).getId();
+    }
+
+    @Override
+    @NotNull
+    public String getEntityType(@NotNull Object entity) {
+        return ((Entity)entity).getType().toString(); // TODO test/fix
+    }
+
+    @Override
+    public boolean isSneaking(@NotNull TabPlayer player) {
+        return ((FabricTabPlayer)player).getPlayer().isCrouching();
+    }
+
+    @Override
+    public boolean isSwimming(@NotNull TabPlayer player) {
+        return ((FabricTabPlayer)player).getPlayer().isSwimming();
+    }
+
+    @Override
+    public boolean isGliding(@NotNull TabPlayer player) {
+        return false; // TODO
+    }
+
+    @Override
+    public boolean isSleeping(@NotNull TabPlayer player) {
+        return ((FabricTabPlayer)player).getPlayer().isSleeping();
+    }
+
+    @Override
+    @NotNull
+    public Object getArmorStandType() {
+        return EntityType.ARMOR_STAND;
+    }
+
+    @Override
+    public double getX(@NotNull TabPlayer player) {
+        return ((FabricTabPlayer)player).getPlayer().position().x;
+    }
+
+    @Override
+    public double getY(@NotNull Object entity) {
+        return ((Entity)entity).position().y;
+    }
+
+    @Override
+    public double getZ(@NotNull TabPlayer player) {
+        return ((FabricTabPlayer)player).getPlayer().position().z;
+    }
+
+    @Override
+    @NotNull
+    public EntityData createDataWatcher(@NotNull TabPlayer viewer, byte flags, @NotNull String displayName, boolean nameVisible) {
+        return () -> Arrays.asList(
+                new SynchedEntityData.DataValue<>(0, EntityDataSerializers.BYTE, flags),
+                new SynchedEntityData.DataValue<>(2, EntityDataSerializers.OPTIONAL_COMPONENT,
+                Optional.of(((FabricTabPlayer)viewer).getPlatform().toComponent(IChatBaseComponent.optimizedComponent(displayName), viewer.getVersion()))),
+                new SynchedEntityData.DataValue<>(3, EntityDataSerializers.BOOLEAN, nameVisible),
+                new SynchedEntityData.DataValue<>(15, EntityDataSerializers.BYTE, (byte)16)
+        );
+    }
+
+    @Override
+    public void runInEntityScheduler(@NotNull Object entity, @NotNull Runnable task) {
+        task.run();
+    }
+
+    @Override
+    public boolean isDead(@NotNull TabPlayer player) {
+        return !((FabricTabPlayer)player).getPlayer().isAlive();
+    }
+}

fabric/src/main/resources/fabric.mod.json

@@ -11,7 +11,8 @@
   },
   "depends": {
     "fabricloader": ">=0.9.0",
-    "fabric-api-base": "*"
+    "fabric-api-base": "*",
+    "minecraft": "1.20.2"
   },
   "recommends": {
     "fabric-permissions-api-v0": "*"

fabric/src/main/resources/tab.accesswidener

@@ -1,5 +1,13 @@
 accessWidener v1 named
 
+accessible field net/minecraft/network/protocol/game/ClientboundMoveEntityPacket entityId I
+accessible field net/minecraft/server/network/ServerGamePacketListenerImpl connection Lnet/minecraft/network/Connection;
+accessible field net/minecraft/network/Connection channel Lio/netty/channel/Channel;
+accessible field net/minecraft/network/protocol/game/ClientboundSetPlayerTeamPacket method I
+accessible field net/minecraft/network/protocol/game/ClientboundSetPlayerTeamPacket players Ljava/util/Collection;
+mutable field net/minecraft/network/protocol/game/ClientboundSetPlayerTeamPacket players Ljava/util/Collection;
+accessible field net/minecraft/server/network/ServerCommonPacketListenerImpl connection Lnet/minecraft/network/Connection;
+
 # new
 accessible field net/minecraft/server/MinecraftServer LOGGER Lorg/slf4j/Logger;
 mutable field net/minecraft/server/MinecraftServer LOGGER Lorg/slf4j/Logger;

jar/build.gradle.kts

@@ -7,11 +7,9 @@ plugins {
 val platforms = setOf(
     rootProject.projects.bukkit,
     rootProject.projects.bungeecord,
-    rootProject.projects.krypton,
     rootProject.projects.velocity,
     rootProject.projects.sponge7,
     rootProject.projects.sponge8,
-//    rootProject.projects.fabric
 ).map { it.dependencyProject }
 
 tasks {

krypton/build.gradle.kts

@@ -1,10 +0,0 @@
-dependencies {
-    implementation(projects.shared)
-    compileOnly("me.lucko:spark-api:0.1-SNAPSHOT")
-    compileOnly("org.kryptonmc:krypton-api:f93a12382f")
-    annotationProcessor("org.kryptonmc:krypton-annotation-processor:f93a12382f")
-}
-
-tasks.compileJava {
-    options.release.set(17)
-}

krypton/src/main/java/me/neznamy/tab/platforms/krypton/KryptonEventListener.java

@@ -1,36 +0,0 @@
-package me.neznamy.tab.platforms.krypton;
-
-import me.neznamy.tab.shared.platform.EventListener;
-import me.neznamy.tab.shared.platform.TabPlayer;
-import org.kryptonmc.api.entity.player.Player;
-import org.kryptonmc.api.event.Listener;
-import org.kryptonmc.api.event.command.CommandExecuteEvent;
-import org.kryptonmc.api.event.player.PlayerJoinEvent;
-import org.kryptonmc.api.event.player.PlayerQuitEvent;
-
-public class KryptonEventListener extends EventListener<Player> {
-
-    @Listener
-    public void onJoin(PlayerJoinEvent event) {
-        join(event.getPlayer());
-    }
-
-    @Listener
-    public void onQuit(PlayerQuitEvent event) {
-        quit(event.getPlayer().getUuid());
-    }
-
-    //TODO world switch
-
-    @Listener
-    public void onCommand(CommandExecuteEvent event) {
-        if (event.getSender() instanceof Player && command(((Player) event.getSender()).getUuid(), event.getCommand())) {
-            event.deny();
-        }
-    }
-
-    @Override
-    public TabPlayer createPlayer(Player player) {
-        return new KryptonTabPlayer(player);
-    }
-}

krypton/src/main/java/me/neznamy/tab/platforms/krypton/KryptonPlaceholderRegistry.java

@@ -1,84 +0,0 @@
-package me.neznamy.tab.platforms.krypton;
-
-import lombok.RequiredArgsConstructor;
-import me.lucko.spark.api.Spark;
-import me.lucko.spark.api.statistic.StatisticWindow.*;
-import me.lucko.spark.api.statistic.misc.DoubleAverageInfo;
-import me.lucko.spark.api.statistic.types.DoubleStatistic;
-import me.lucko.spark.api.statistic.types.GenericStatistic;
-import me.neznamy.tab.shared.TabConstants;
-import me.neznamy.tab.api.placeholder.PlaceholderManager;
-import me.neznamy.tab.shared.placeholders.UniversalPlaceholderRegistry;
-import org.jetbrains.annotations.NotNull;
-import org.kryptonmc.api.entity.player.Player;
-
-@RequiredArgsConstructor
-public class KryptonPlaceholderRegistry extends UniversalPlaceholderRegistry {
-
-    private final @NotNull KryptonTAB plugin;
-
-    @Override
-    public void registerPlaceholders(@NotNull PlaceholderManager manager) {
-        // Built-in stuff
-        manager.registerPlayerPlaceholder(TabConstants.Placeholder.DISPLAY_NAME, 500, p -> ((Player) p.getPlayer()).getDisplayName());
-        manager.registerPlayerPlaceholder(TabConstants.Placeholder.HEALTH, 100, p -> Math.ceil(((Player) p.getPlayer()).getHealth()));
-
-        // Spark placeholders, registered if Spark is present
-        if (plugin.getServer().getPluginManager().isLoaded("spark")) SparkPlaceholders.register(this, manager);
-        super.registerPlaceholders(manager);
-    }
-
-    /*
-     * This class is a massive hack. The issue is that the lambdas in here create InvokeDynamic instructions, which have
-     * references to the Spark classes that will be resolved on class load, causing class not found errors when the registry
-     * is loaded.
-     *
-     * This class solves this, as the InvokeDynamic instructions are now part of this class, rather than the registry class,
-     * which means we can have this class only load if Spark is present, solving the issue.
-     */
-    private static final class SparkPlaceholders {
-
-        static void register(KryptonPlaceholderRegistry registry, PlaceholderManager manager) {
-            Spark spark = registry.plugin.getServer().getServicesManager().provide(Spark.class);
-            if (spark == null) return;
-
-            // TPS
-            DoubleStatistic<TicksPerSecond> tps = spark.tps();
-            if (tps != null) {
-                manager.registerServerPlaceholder("%tps_5s%", 1000, () -> registry.format(tps.poll(TicksPerSecond.SECONDS_5)));
-                manager.registerServerPlaceholder("%tps_10s%", 1000, () -> registry.format(tps.poll(TicksPerSecond.SECONDS_10)));
-                manager.registerServerPlaceholder("%tps_1m%", 1000, () -> registry.format(tps.poll(TicksPerSecond.MINUTES_1)));
-                manager.registerServerPlaceholder("%tps_5m%", 1000, () -> registry.format(tps.poll(TicksPerSecond.MINUTES_5)));
-                manager.registerServerPlaceholder("%tps_15m%", 1000, () -> registry.format(tps.poll(TicksPerSecond.MINUTES_15)));
-            }
-
-            // MSPT
-            GenericStatistic<DoubleAverageInfo, MillisPerTick> mspt = spark.mspt();
-            if (mspt != null) {
-                manager.registerServerPlaceholder("%mspt_min_10s%", 1000, () -> registry.format(mspt.poll(MillisPerTick.SECONDS_10).min()));
-                manager.registerServerPlaceholder("%mspt_max_10s%", 1000, () -> registry.format(mspt.poll(MillisPerTick.SECONDS_10).max()));
-                manager.registerServerPlaceholder("%mspt_mean_10s%", 1000, () -> registry.format(mspt.poll(MillisPerTick.SECONDS_10).mean()));
-                manager.registerServerPlaceholder("%mspt_median_10s%", 1000, () -> registry.format(mspt.poll(MillisPerTick.SECONDS_10).median()));
-                manager.registerServerPlaceholder("%mspt_percentile95_10s%", 1000, () -> registry.format(mspt.poll(MillisPerTick.SECONDS_10).percentile95th()));
-
-                manager.registerServerPlaceholder("%mspt_min_1m%", 1000, () -> registry.format(mspt.poll(MillisPerTick.MINUTES_1).min()));
-                manager.registerServerPlaceholder("%mspt_max_1m%", 1000, () -> registry.format(mspt.poll(MillisPerTick.MINUTES_1).max()));
-                manager.registerServerPlaceholder("%mspt_mean_1m%", 1000, () -> registry.format(mspt.poll(MillisPerTick.MINUTES_1).mean()));
-                manager.registerServerPlaceholder("%mspt_median_1m%", 1000, () -> registry.format(mspt.poll(MillisPerTick.MINUTES_1).median()));
-                manager.registerServerPlaceholder("%mspt_percentile95_1m%", 1000, () -> registry.format(mspt.poll(MillisPerTick.SECONDS_10).percentile95th()));
-            }
-
-            // CPU process
-            DoubleStatistic<CpuUsage> process = spark.cpuProcess();
-            manager.registerServerPlaceholder("%cpu_process_10s%", 1000, () -> registry.format(process.poll(CpuUsage.SECONDS_10)));
-            manager.registerServerPlaceholder("%cpu_process_1m%", 1000, () -> registry.format(process.poll(CpuUsage.MINUTES_1)));
-            manager.registerServerPlaceholder("%cpu_process_15m%", 1000, () -> registry.format(process.poll(CpuUsage.MINUTES_15)));
-
-            // CPU system
-            DoubleStatistic<CpuUsage> system = spark.cpuSystem();
-            manager.registerServerPlaceholder("%cpu_system_10s%", 1000, () -> registry.format(system.poll(CpuUsage.SECONDS_10)));
-            manager.registerServerPlaceholder("%cpu_system_1m%", 1000, () -> registry.format(system.poll(CpuUsage.MINUTES_1)));
-            manager.registerServerPlaceholder("%cpu_system_15m%", 1000, () -> registry.format(system.poll(CpuUsage.MINUTES_15)));
-        }
-    }
-}

krypton/src/main/java/me/neznamy/tab/platforms/krypton/KryptonPlatform.java

@@ -1,73 +0,0 @@
-package me.neznamy.tab.platforms.krypton;
-
-import me.neznamy.tab.shared.chat.IChatBaseComponent;
-import me.neznamy.tab.shared.features.types.TabFeature;
-import me.neznamy.tab.shared.TAB;
-import me.neznamy.tab.shared.backend.BackendPlatform;
-import me.neznamy.tab.shared.features.injection.PipelineInjector;
-import me.neznamy.tab.shared.placeholders.expansion.TabExpansion;
-import me.neznamy.tab.shared.features.nametags.NameTag;
-import me.neznamy.tab.shared.placeholders.expansion.EmptyTabExpansion;
-import net.kyori.adventure.text.Component;
-import org.jetbrains.annotations.NotNull;
-import org.jetbrains.annotations.Nullable;
-import org.kryptonmc.api.Server;
-import org.kryptonmc.api.entity.player.Player;
-
-public class KryptonPlatform implements BackendPlatform {
-    
-    @NotNull private final KryptonTAB plugin;
-    @NotNull private final Server server;
-
-    public KryptonPlatform(@NotNull KryptonTAB plugin) {
-        this.plugin = plugin;
-        server = plugin.getServer();
-    }
-
-    @Override
-    public void sendConsoleMessage(@NotNull IChatBaseComponent message) {
-        server.getConsole().sendMessage(Component.text("[TAB] ").append(message.toAdventureComponent(TAB.getInstance().getServerVersion())));
-    }
-
-    @Override
-    public String getServerVersionInfo() {
-        return "[Krypton] " + server.getPlatform().version();
-    }
-
-    @Override
-    public void registerUnknownPlaceholder(@NotNull String identifier) {
-        TAB.getInstance().getPlaceholderManager().registerServerPlaceholder(identifier, -1, () -> "");
-    }
-
-    @Override
-    public void loadPlayers() {
-        for (Player player : server.getPlayers()) {
-            TAB.getInstance().addPlayer(new KryptonTabPlayer(player));
-        }
-    }
-
-    @Override
-    public void registerPlaceholders() {
-        new KryptonPlaceholderRegistry(plugin).registerPlaceholders(TAB.getInstance().getPlaceholderManager());
-    }
-
-    @Override
-    public @Nullable PipelineInjector createPipelineInjector() {
-        return null;
-    }
-
-    @Override
-    public @NotNull NameTag getUnlimitedNameTags() {
-        return new NameTag();
-    }
-
-    @Override
-    public @NotNull TabExpansion createTabExpansion() {
-        return new EmptyTabExpansion();
-    }
-
-    @Override
-    public @Nullable TabFeature getPerWorldPlayerList() {
-        return null;
-    }
-}

krypton/src/main/java/me/neznamy/tab/platforms/krypton/KryptonScoreboard.java

@@ -1,108 +0,0 @@
-package me.neznamy.tab.platforms.krypton;
-
-import me.neznamy.tab.shared.chat.IChatBaseComponent;
-import me.neznamy.tab.shared.platform.Scoreboard;
-import org.jetbrains.annotations.NotNull;
-import org.kryptonmc.api.scoreboard.Objective;
-import org.kryptonmc.api.scoreboard.ObjectiveRenderType;
-import org.kryptonmc.api.scoreboard.Team;
-import org.kryptonmc.api.scoreboard.Visibility;
-import org.kryptonmc.api.scoreboard.criteria.Criteria;
-
-import java.util.Collection;
-
-public class KryptonScoreboard extends Scoreboard<KryptonTabPlayer> {
-
-    public KryptonScoreboard(@NotNull KryptonTabPlayer player) {
-        super(player);
-        // Create a new, blank scoreboard for each player to avoid conflicts
-        player.getPlayer().showScoreboard(org.kryptonmc.api.scoreboard.Scoreboard.create());
-    }
-
-    @Override
-    public void setDisplaySlot(@NotNull DisplaySlot slot, @NotNull String objectiveName) {
-        Objective objective = getScoreboard().getObjective(objectiveName);
-        if (objective != null) getScoreboard().updateSlot(objective, convertDisplaySlot(slot));
-    }
-
-    private org.kryptonmc.api.scoreboard.DisplaySlot convertDisplaySlot(DisplaySlot slot) {
-        return org.kryptonmc.api.scoreboard.DisplaySlot.values()[slot.ordinal()];
-    }
-
-    @Override
-    public void registerObjective0(@NotNull String objectiveName, @NotNull String title, boolean hearts) {
-        Objective ignored = getScoreboard().createObjectiveBuilder()
-                .name(objectiveName)
-                .criterion(Criteria.DUMMY.get())
-                .displayName(IChatBaseComponent.optimizedComponent(title).toAdventureComponent(player.getVersion()))
-                .renderType(hearts ? ObjectiveRenderType.HEARTS : ObjectiveRenderType.INTEGER)
-                .buildAndRegister();
-    }
-
-    @Override
-    public void unregisterObjective0(@NotNull String objectiveName) {
-        Objective objective = getScoreboard().getObjective(objectiveName);
-        if (objective != null) getScoreboard().removeObjective(objective);
-    }
-
-    @Override
-    public void updateObjective0(@NotNull String objectiveName, @NotNull String title, boolean hearts) {
-        Objective objective = getScoreboard().getObjective(objectiveName);
-        if (objective == null) return;
-        objective.setDisplayName(IChatBaseComponent.optimizedComponent(title).toAdventureComponent(player.getVersion()));
-        objective.setRenderType(hearts ? ObjectiveRenderType.HEARTS : ObjectiveRenderType.INTEGER);
-    }
-
-    @Override
-    public void registerTeam0(@NotNull String name, @NotNull String prefix, @NotNull String suffix, @NotNull NameVisibility visibility, @NotNull CollisionRule collision, @NotNull Collection<String> players, int options) {
-        Team team = getScoreboard().createTeamBuilder(name)
-                .displayName(IChatBaseComponent.optimizedComponent(name).toAdventureComponent(player.getVersion()))
-                .prefix(IChatBaseComponent.optimizedComponent(prefix).toAdventureComponent(player.getVersion()))
-                .suffix(IChatBaseComponent.optimizedComponent(suffix).toAdventureComponent(player.getVersion()))
-                .friendlyFire((options & 0x01) != 0)
-                .canSeeInvisibleMembers((options & 0x02) != 0)
-                .collisionRule(org.kryptonmc.api.scoreboard.CollisionRule.valueOf(collision.name()))
-                .nameTagVisibility(Visibility.valueOf(visibility.name()))
-                .buildAndRegister();
-        for (String member : players) {
-            team.addMember(IChatBaseComponent.optimizedComponent(member).toAdventureComponent(player.getVersion()));
-        }
-    }
-
-    @Override
-    public void unregisterTeam0(@NotNull String name) {
-        Team team = getScoreboard().getTeam(name);
-        if (team != null) getScoreboard().removeTeam(team);
-    }
-
-    @Override
-    public void updateTeam0(@NotNull String name, @NotNull String prefix, @NotNull String suffix, @NotNull NameVisibility visibility, @NotNull CollisionRule collision, int options) {
-        Team team = getScoreboard().getTeam(name);
-        if (team == null) return;
-        team.setDisplayName(IChatBaseComponent.optimizedComponent(name).toAdventureComponent(player.getVersion()));
-        team.setPrefix(IChatBaseComponent.optimizedComponent(prefix).toAdventureComponent(player.getVersion()));
-        team.setSuffix(IChatBaseComponent.optimizedComponent(suffix).toAdventureComponent(player.getVersion()));
-        team.setAllowFriendlyFire((options & 0x01) != 0);
-        team.setCanSeeInvisibleMembers((options & 0x02) != 0);
-        team.setCollisionRule(org.kryptonmc.api.scoreboard.CollisionRule.valueOf(collision.name()));
-        team.setNameTagVisibility(Visibility.valueOf(visibility.name()));
-    }
-
-    @Override
-    public void setScore0(@NotNull String objectiveName, @NotNull String playerName, int score) {
-        Objective objective = getScoreboard().getObjective(objectiveName);
-        if (objective != null)
-            objective.getOrCreateScore(IChatBaseComponent.optimizedComponent(playerName)
-                    .toAdventureComponent(player.getVersion())).setScore(score);
-    }
-
-    @Override
-    public void removeScore0(@NotNull String objectiveName, @NotNull String playerName) {
-        Objective objective = getScoreboard().getObjective(objectiveName);
-        if (objective != null) objective.removeScore(IChatBaseComponent.optimizedComponent(playerName).toAdventureComponent(player.getVersion()));
-    }
-
-    private org.kryptonmc.api.scoreboard.Scoreboard getScoreboard() {
-        return player.getPlayer().getScoreboard();
-    }
-}

krypton/src/main/java/me/neznamy/tab/platforms/krypton/KryptonTAB.java

@@ -1,57 +0,0 @@
-package me.neznamy.tab.platforms.krypton;
-
-import com.google.inject.Inject;
-import lombok.Getter;
-import me.neznamy.tab.shared.ProtocolVersion;
-import me.neznamy.tab.shared.TAB;
-import me.neznamy.tab.shared.TabConstants;
-import org.kryptonmc.api.Server;
-import org.kryptonmc.api.command.CommandMeta;
-import org.kryptonmc.api.event.Event;
-import org.kryptonmc.api.event.EventFilter;
-import org.kryptonmc.api.event.EventNode;
-import org.kryptonmc.api.event.Listener;
-import org.kryptonmc.api.event.server.ServerStartEvent;
-import org.kryptonmc.api.event.server.ServerStopEvent;
-import org.kryptonmc.api.plugin.annotation.Dependency;
-import org.kryptonmc.api.plugin.annotation.Plugin;
-
-import java.nio.file.Path;
-
-/**
- * Main class for Krypton platform
- */
-@Plugin(
-        id = TabConstants.PLUGIN_ID,
-        name = TabConstants.PLUGIN_NAME,
-        version = TabConstants.PLUGIN_VERSION,
-        description = TabConstants.PLUGIN_DESCRIPTION,
-        authors = {TabConstants.PLUGIN_AUTHOR, "BomBardyGamer"},
-        dependencies = {
-                @Dependency(id = "luckperms", optional = true),
-                @Dependency(id = "viaversion", optional = true)
-        }
-)
-public class KryptonTAB {
-
-    @Inject @Getter private Server server;
-    @Inject private EventNode<Event> pluginEventNode;
-    @Inject private Path folder;
-    private final EventNode<Event> eventNode = EventNode.Companion.filteredForEvent("tab_events", EventFilter.ALL,
-            (it) -> !TAB.getInstance().isPluginDisabled());
-
-    @Listener
-    public final void onStart(ServerStartEvent event) {
-        pluginEventNode.addChild(eventNode);
-        eventNode.registerListeners(new KryptonEventListener());
-        server.getCommandManager().register(new KryptonTabCommand(), CommandMeta.builder(TabConstants.COMMAND_BACKEND).build());
-        TAB.setInstance(new TAB(new KryptonPlatform(this), ProtocolVersion.fromNetworkId(server.getPlatform().protocolVersion()),
-                folder.toFile()));
-        TAB.getInstance().load();
-    }
-
-    @Listener
-    public final void onStop(ServerStopEvent event) {
-        TAB.getInstance().unload();
-    }
-}

krypton/src/main/java/me/neznamy/tab/platforms/krypton/KryptonTabCommand.java

@@ -1,44 +0,0 @@
-package me.neznamy.tab.platforms.krypton;
-
-import me.neznamy.tab.shared.TAB;
-import me.neznamy.tab.shared.TabConstants;
-import me.neznamy.tab.shared.platform.TabPlayer;
-import net.kyori.adventure.text.Component;
-import org.jetbrains.annotations.NotNull;
-import org.kryptonmc.api.command.Sender;
-import org.kryptonmc.api.command.SimpleCommand;
-import org.kryptonmc.api.entity.player.Player;
-
-import java.util.Collections;
-import java.util.List;
-
-public class KryptonTabCommand implements SimpleCommand {
-
-    @Override
-    public void execute(@NotNull Sender sender, String[] args) {
-        if (TAB.getInstance().isPluginDisabled()) {
-            boolean canReload = sender.hasPermission(TabConstants.Permission.COMMAND_RELOAD);
-            boolean isAdmin = sender.hasPermission(TabConstants.Permission.COMMAND_ALL);
-            for (String message : TAB.getInstance().getDisabledCommand().execute(args, canReload, isAdmin)) {
-                sender.sendMessage(Component.text(message));
-            }
-            return;
-        }
-        TabPlayer player = null;
-        if (sender instanceof Player) {
-            player = TAB.getInstance().getPlayer(((Player) sender).getUuid());
-            if (player == null) return;
-        }
-        TAB.getInstance().getCommand().execute(player, args);
-    }
-
-    @Override
-    public @NotNull List<String> suggest(@NotNull Sender sender, String[] args) {
-        TabPlayer player = null;
-        if (sender instanceof Player) {
-            player = TAB.getInstance().getPlayer(((Player) sender).getUuid());
-            if (player == null) return Collections.emptyList();
-        }
-        return TAB.getInstance().getCommand().complete(player, args);
-    }
-}

krypton/src/main/java/me/neznamy/tab/platforms/krypton/KryptonTabList.java

@@ -1,65 +0,0 @@
-package me.neznamy.tab.platforms.krypton;
-
-import me.neznamy.tab.shared.chat.IChatBaseComponent;
-import me.neznamy.tab.shared.platform.TabList;
-import org.jetbrains.annotations.NotNull;
-import org.jetbrains.annotations.Nullable;
-import org.kryptonmc.api.auth.GameProfile;
-import org.kryptonmc.api.auth.ProfileProperty;
-import org.kryptonmc.api.entity.player.TabListEntry;
-import org.kryptonmc.api.world.GameMode;
-import java.util.Collections;
-import java.util.UUID;
-
-public record KryptonTabList(KryptonTabPlayer player) implements TabList {
-
-    @Override
-    public void removeEntry(@NotNull UUID entryId) {
-        player.getPlayer().getTabList().removeEntry(entryId);
-    }
-
-    @Override
-    public void updateDisplayName(@NotNull UUID entryId, @Nullable IChatBaseComponent displayName) {
-        TabListEntry entry = player.getPlayer().getTabList().getEntry(entryId);
-        if (entry != null) entry.setDisplayName(displayName == null ? null : displayName.toAdventureComponent(player.getVersion()));
-    }
-
-    @Override
-    public void updateLatency(@NotNull UUID entryId, int latency) {
-        TabListEntry entry = player.getPlayer().getTabList().getEntry(entryId);
-        if (entry != null) entry.setLatency(latency);
-    }
-
-    @Override
-    public void updateGameMode(@NotNull UUID entryId, int gameMode) {
-        TabListEntry entry = player.getPlayer().getTabList().getEntry(entryId);
-        if (entry != null) entry.setGameMode(GameMode.values()[gameMode]);
-    }
-
-    @Override
-    public void addEntry(@NotNull Entry entry) {
-        GameProfile profile = createGameProfile(entry.getUniqueId(), entry.getName(), entry.getSkin());
-        player.getPlayer().getTabList().createEntryBuilder(entry.getUniqueId(), profile)
-                .displayName(entry.getDisplayName() == null ? null : entry.getDisplayName().toAdventureComponent(player.getVersion()))
-                .gameMode(GameMode.values()[entry.getGameMode()])
-                .latency(entry.getLatency())
-                .listed(true)
-                .buildAndRegister();
-    }
-
-    @Override
-    public void setPlayerListHeaderFooter(@NotNull IChatBaseComponent header, @NotNull IChatBaseComponent footer) {
-        player.getPlayer().getTabList().setHeaderAndFooter(
-                header.toAdventureComponent(player.getVersion()),
-                footer.toAdventureComponent(player.getVersion())
-        );
-    }
-
-    private @NotNull
-    GameProfile createGameProfile(@NotNull UUID uuid, @Nullable String name, @Nullable Skin skin) {
-        String newName = name == null ? "" : name;
-        if (skin == null) return GameProfile.of(newName, uuid);
-        ProfileProperty property = ProfileProperty.of(TabList.TEXTURES_PROPERTY, skin.getValue(), skin.getSignature());
-        return GameProfile.of(newName, uuid, Collections.singletonList(property));
-    }
-}

krypton/src/main/java/me/neznamy/tab/platforms/krypton/KryptonTabPlayer.java

@@ -1,81 +0,0 @@
-package me.neznamy.tab.platforms.krypton;
-
-import lombok.Getter;
-import me.neznamy.tab.shared.TAB;
-import me.neznamy.tab.shared.platform.bossbar.AdventureBossBar;
-import me.neznamy.tab.shared.platform.bossbar.BossBar;
-import me.neznamy.tab.shared.chat.IChatBaseComponent;
-import me.neznamy.tab.shared.platform.TabPlayer;
-import me.neznamy.tab.shared.platform.TabList;
-import me.neznamy.tab.shared.platform.Scoreboard;
-import org.jetbrains.annotations.NotNull;
-import org.jetbrains.annotations.Nullable;
-import org.kryptonmc.api.auth.ProfileProperty;
-import org.kryptonmc.api.entity.player.Player;
-
-import java.util.List;
-
-@Getter
-public class KryptonTabPlayer extends TabPlayer {
-
-    private final Scoreboard<KryptonTabPlayer> scoreboard = new KryptonScoreboard(this);
-    private final TabList tabList = new KryptonTabList(this);
-    private final BossBar bossBar = new AdventureBossBar(this);
-
-    public KryptonTabPlayer(Player player) {
-        super(player, player.getUuid(), player.getProfile().name(), TAB.getInstance().getConfiguration().getServerName(),
-                player.getWorld().getName(), TAB.getInstance().getServerVersion().getNetworkId(), true);
-    }
-
-    @Override
-    public boolean hasPermission(@NotNull String permission) {
-        return getPlayer().hasPermission(permission);
-    }
-
-    @Override
-    public int getPing() {
-        return getPlayer().getPing();
-    }
-
-    @Override
-    public void sendMessage(@NotNull IChatBaseComponent message) {
-        getPlayer().sendMessage(message.toAdventureComponent(getVersion()));
-    }
-
-    @Override
-    public boolean hasInvisibilityPotion() {
-        return false;
-    }
-
-    @Override
-    public boolean isDisguised() {
-        return false;
-    }
-
-    @Override
-    public @Nullable TabList.Skin getSkin() {
-        List<ProfileProperty> list = getPlayer().getProfile().properties();
-        if (list.isEmpty()) return null;
-        return new TabList.Skin(list.get(0).value(), list.get(0).signature());
-    }
-
-    @Override
-    public @NotNull Player getPlayer() {
-        return (Player) player;
-    }
-
-    @Override
-    public boolean isOnline() {
-        return getPlayer().isOnline();
-    }
-
-    @Override
-    public boolean isVanished() {
-        return false;
-    }
-
-    @Override
-    public int getGamemode() {
-        return getPlayer().getGameMode().ordinal();
-    }
-}

settings.gradle.kts

@@ -2,19 +2,15 @@ enableFeaturePreview("TYPESAFE_PROJECT_ACCESSORS")
 
 dependencyResolutionManagement {
     repositories {
-        mavenCentral() // Netty, SnakeYaml, json-simple, slf4j, Guava, Kyori event, bStats, AuthLib
+        mavenCentral() // Netty, SnakeYaml, json-simple, Guava, Kyori event, bStats, AuthLib, LuckPerms
         maven("https://repo.extendedclip.com/content/repositories/placeholderapi/") // PlaceholderAPI
         maven("https://repo.viaversion.com/") // ViaVersion
-        maven("https://repo.codemc.org/repository/maven-public/") // RedisBungee
-        maven("https://repo.kryptonmc.org/releases") // Krypton, YamlAssist, LuckPerms
-        maven("https://repo.kryptonmc.org/snapshots") // BungeeCord
+        maven("https://repo.codemc.org/repository/maven-public/") // RedisBungee, BungeeCord-proxy
         maven("https://repo.opencollab.dev/maven-snapshots/") // Floodgate
         maven("https://repo.purpurmc.org/snapshots") // Purpur
-        maven("https://repo.papermc.io/repository/maven-public/") // Velocity
         maven("https://repo.spongepowered.org/repository/maven-public/") // Sponge
-        maven("https://oss.sonatype.org/content/repositories/snapshots/") // Spark
-        maven("https://maven.fabricmc.net/") // Fabric
-        maven("https://jitpack.io") // PremiumVanish, Vault
+        maven("https://jitpack.io") // PremiumVanish, Vault, YamlAssist
+        maven("https://repo.md-5.net/content/groups/public/") // LibsDisguises
     }
 }
 
@@ -31,11 +27,10 @@ rootProject.name = "TAB"
 
 include(":api")
 include(":shared")
-include(":krypton")
 include(":velocity")
 include(":bukkit")
 include(":bungeecord")
 include(":sponge7")
 include(":sponge8")
 include(":fabric")
-include(":jar")
+include(":jar")

shared/build.gradle.kts

@@ -5,7 +5,7 @@ plugins {
 dependencies {
     api(projects.api)
     api("org.yaml:snakeyaml:1.33")
-    api("me.neznamy:yamlassist:1.0.5")
+    api("com.github.NEZNAMY:yamlassist:1.0.5")
     api("com.googlecode.json-simple:json-simple:1.1.1") {
         exclude("junit", "junit")
     }
@@ -13,13 +13,11 @@ dependencies {
         exclude("com.google.guava", "guava")
         exclude("org.checkerframework", "checker-qual")
     }
-    compileOnlyApi("net.md-5:bungeecord-chat:1.19-R0.1-SNAPSHOT")
     compileOnlyApi("com.viaversion:viaversion-api:4.5.1")
     compileOnlyApi("io.netty:netty-all:4.1.90.Final")
     compileOnlyApi("net.luckperms:api:5.4")
     compileOnlyApi("com.google.guava:guava:31.1-jre")
     compileOnlyApi("org.geysermc.floodgate:api:2.2.0-SNAPSHOT")
-    compileOnlyApi("org.slf4j:slf4j-api:2.0.6")
     compileOnlyApi("net.kyori:adventure-api:4.13.0")
     compileOnlyApi("net.kyori:adventure-text-serializer-legacy:4.13.0")
     compileOnlyApi("net.kyori:adventure-text-minimessage:4.13.0")

shared/src/main/java/me/neznamy/tab/shared/CpuManager.java

@@ -1,248 +0,0 @@
-package me.neznamy.tab.shared;
-
-import java.util.*;
-import java.util.Map.Entry;
-import java.util.concurrent.*;
-
-import com.google.common.util.concurrent.ThreadFactoryBuilder;
-
-import me.neznamy.tab.shared.features.types.TabFeature;
-import org.jetbrains.annotations.NotNull;
-
-
-/**
- * A class which measures CPU usage of all tasks inserted into it and shows usage
- */
-public class CpuManager {
-
-    private final int UPDATE_RATE_SECONDS = 10;
-
-    private final long TIME_PERCENT = TimeUnit.SECONDS.toNanos(1) / UPDATE_RATE_SECONDS;
-
-    /** Active time in current time period saved as nanoseconds from features */
-    private volatile Map<String, Map<String, Long>> featureUsageCurrent = new ConcurrentHashMap<>();
-
-    /** Active time in current time period saved as nanoseconds from placeholders */
-    private volatile Map<String, Long> placeholderUsageCurrent = new ConcurrentHashMap<>();
-
-    /** Active time in previous time period saved as nanoseconds from features */
-    private volatile Map<String, Map<String, Long>> featureUsagePrevious = new HashMap<>();
-
-    /** Active time in previous time period saved as nanoseconds from placeholders */
-    private volatile Map<String, Long> placeholderUsagePrevious = new HashMap<>();
-
-    // Scheduler for scheduling delayed and repeating tasks
-    private final ScheduledExecutorService scheduler = Executors.newSingleThreadScheduledExecutor(
-            new ThreadFactoryBuilder().setNameFormat("TAB Processing Thread").build());
-
-    /** Tasks submitted to main thread before plugin was fully enabled */
-    private final Queue<Runnable> taskQueue = new ConcurrentLinkedQueue<>();
-
-    /** Enabled flag used to queue incoming tasks if plugin is not enabled yet */
-    private volatile boolean enabled = false;
-
-    /**
-     * Constructs new instance and starts repeating task that resets values in configured interval
-     */
-    public CpuManager() {
-        startRepeatingTask((int) TimeUnit.SECONDS.toMillis(UPDATE_RATE_SECONDS), () -> {
-            featureUsagePrevious = Collections.unmodifiableMap(featureUsageCurrent);
-            placeholderUsagePrevious = Collections.unmodifiableMap(placeholderUsageCurrent);
-
-            featureUsageCurrent = new ConcurrentHashMap<>();
-            placeholderUsageCurrent = new ConcurrentHashMap<>();
-
-            for (Entry<String, Long> entry : placeholderUsagePrevious.entrySet()) {
-                float usagePercent = nanosToPercent(entry.getValue());
-                if (usagePercent > 50) {
-                    TAB.getInstance().sendConsoleMessage("&c[WARN] CPU usage of placeholder " + entry.getKey() +
-                            " is " + (int)usagePercent + "%. It will most likely cause problems. Try increasing refresh interval.", true);
-                }
-            }
-        });
-    }
-
-    /**
-     * Cancels all tasks and shuts down thread pools
-     */
-    public void cancelAllTasks() {
-        scheduler.shutdownNow();
-    }
-
-    /**
-     * Marks cpu manager as loaded and submits all queued tasks
-     */
-    public void enable() {
-        enabled = true;
-
-        Runnable r;
-        while ((r = taskQueue.poll()) != null) {
-            submit(r);
-        }
-    }
-
-    /**
-     * Submits task to TAB's main thread. If plugin is not enabled yet,
-     * queues the task instead and executes once it's loaded.
-     *
-     * @param task task to execute
-     */
-    private void submit(@NotNull Runnable task) {
-        if (scheduler.isShutdown()) return;
-        if (!enabled) {
-            taskQueue.add(task);
-            return;
-        }
-        scheduler.submit(() -> run(task));
-    }
-
-    /**
-     * Returns cpu usage map of placeholders from previous time period
-     *
-     * @return cpu usage map of placeholders
-     */
-    public Map<String, Float> getPlaceholderUsage() {
-        return getUsage(placeholderUsagePrevious);
-    }
-
-    /**
-     * Converts nano map to percent and sorts it from highest to lowest usage.
-     *
-     * @param map map to convert
-     * @return converted and sorted map
-     */
-    private @NotNull Map<String, Float> getUsage(@NotNull Map<String, Long> map) {
-        return map
-                .entrySet()
-                .stream()
-                .sorted(Entry.comparingByValue((o1, o2) -> Long.compare(o2, o1)))
-                .collect(LinkedHashMap::new,
-                        (m, e) -> m.put(e.getKey(), nanosToPercent(e.getValue())),
-                        Map::putAll
-                );
-    }
-
-    /**
-     * Returns map of CPU usage per feature and type in the previous time period
-     *
-     * @return map of CPU usage per feature and type
-     */
-    public @NotNull Map<String, Map<String, Float>> getFeatureUsage() {
-        final Map<String, Map<String, Long>> map = featureUsagePrevious;
-
-        TreeMap<Long, Map.Entry<String, Map<String, Float>>> sorted
-                = new TreeMap<>((o1, o2) -> Long.compare(o2, o1));
-
-        map.forEach((key, val) -> {
-            Set<Map.Entry<String, Long>> entries = val.entrySet();
-            Map<String, Float> percent = new LinkedHashMap<>(entries.size());
-            long sum = entries
-                    .stream()
-                    .sorted(Map.Entry.comparingByValue((o1, o2) -> Long.compare(o2, o1)))
-                    .peek(e -> percent.put(e.getKey(), nanosToPercent(e.getValue())))
-                    .mapToLong(Map.Entry::getValue)
-                    .sum();
-            sorted.put(sum, // Map.entry(key, percent) inline type java9+
-                    new AbstractMap.SimpleImmutableEntry<>(key, percent));
-        });
-        // we will also try to get rid of O(log(n)) for random reading
-        int assumeCapacity = map.size();
-        return sorted
-                .values()
-                .stream()
-                .collect(() -> new LinkedHashMap<>(assumeCapacity),
-                        (m, e) -> m.put(e.getKey(), e.getValue()),
-                        Map::putAll
-                );
-    }
-
-    /**
-     * Converts nanoseconds to percent usage.
-     *
-     * @param nanos nanoseconds of cpu time
-     * @return usage in % (0-100)
-     */
-    private float nanosToPercent(long nanos) {
-        return (float) nanos / TIME_PERCENT;
-    }
-
-    /**
-     * Adds cpu time to specified feature and usage type
-     *
-     * @param feature     feature to add time to
-     * @param type        sub-feature to add time to
-     * @param nanoseconds time to add
-     */
-    public void addTime(@NotNull TabFeature feature, @NotNull String type, long nanoseconds) {
-        addTime(feature.getFeatureName(), type, nanoseconds);
-    }
-
-    /**
-     * Adds cpu time to specified feature and usage type
-     *
-     * @param feature     feature to add time to
-     * @param type        sub-feature to add time to
-     * @param nanoseconds time to add
-     */
-    public void addTime(@NotNull String feature, @NotNull String type, long nanoseconds) {
-        featureUsageCurrent
-                .computeIfAbsent(feature, f -> new ConcurrentHashMap<>())
-                .merge(type, nanoseconds, Long::sum);
-    }
-
-    /**
-     * Adds used time to specified key into specified map
-     *
-     * @param map  map to add usage to
-     * @param key  usage key
-     * @param time nanoseconds to add
-     */
-    private void addTime(@NotNull Map<String, Long> map, @NotNull String key, long time) {
-        map.merge(key, time, Long::sum);
-    }
-
-    /**
-     * Adds placeholder time to specified placeholder
-     *
-     * @param placeholder placeholder to add time to
-     * @param nanoseconds time to add
-     */
-    public void addPlaceholderTime(@NotNull String placeholder, long nanoseconds) {
-        addTime(placeholderUsageCurrent, placeholder, nanoseconds);
-    }
-
-    public void runMeasuredTask(@NotNull String feature, @NotNull String type, @NotNull Runnable task) {
-        submit(() -> {
-            long time = System.nanoTime();
-            task.run();
-            addTime(feature, type, System.nanoTime() - time);
-        });
-    }
-
-    public void runTask(@NotNull Runnable task) {
-        submit(task);
-    }
-
-    public void startRepeatingMeasuredTask(int intervalMilliseconds, @NotNull String feature, @NotNull String type, @NotNull Runnable task) {
-        if (scheduler.isShutdown()) return;
-        scheduler.scheduleAtFixedRate(() -> runMeasuredTask(feature, type, task), intervalMilliseconds, intervalMilliseconds, TimeUnit.MILLISECONDS);
-    }
-
-    public void startRepeatingTask(int intervalMilliseconds, @NotNull Runnable task) {
-        if (scheduler.isShutdown()) return;
-        scheduler.scheduleAtFixedRate(() -> run(task), intervalMilliseconds, intervalMilliseconds, TimeUnit.MILLISECONDS);
-    }
-
-    public void runTaskLater(int delayMilliseconds, @NotNull String feature, @NotNull String type, @NotNull Runnable task) {
-        if (scheduler.isShutdown()) return;
-        scheduler.schedule(() -> runMeasuredTask(feature, type, task), delayMilliseconds, TimeUnit.MILLISECONDS);
-    }
-
-    private void run(@NotNull Runnable task) {
-        try {
-            task.run();
-        } catch (Exception | LinkageError | StackOverflowError e) {
-            TAB.getInstance().getErrorManager().printError("An error was thrown when executing task", e);
-        }
-    }
-}

shared/src/main/java/me/neznamy/tab/shared/ErrorManager.java

@@ -2,6 +2,7 @@ package me.neznamy.tab.shared;
 
 import lombok.Getter;
 import me.neznamy.tab.shared.chat.EnumChatFormat;
+import me.neznamy.tab.shared.chat.IChatBaseComponent;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
@@ -123,24 +124,24 @@ public class ErrorManager {
                     if (file.length() < 1000000)
                         buf.write(dateFormat.format(new Date()) + "[TAB v" + TabConstants.PLUGIN_VERSION + "] " + EnumChatFormat.decolor(message) + System.getProperty("line.separator"));
                     if (intoConsoleToo || TAB.getInstance().getConfiguration().isDebugMode())
-                        TAB.getInstance().sendConsoleMessage(EnumChatFormat.color("&c[TAB v" + TabConstants.PLUGIN_VERSION + "] ") + EnumChatFormat.decolor(message), false);
+                        TAB.getInstance().getPlatform().logWarn(new IChatBaseComponent(message));
                 }
                 for (String line : error) {
                     if (file.length() < 1000000)
                         buf.write(dateFormat.format(new Date()) + line + System.getProperty("line.separator"));
                     if (intoConsoleToo || TAB.getInstance().getConfiguration().isDebugMode())
-                        TAB.getInstance().sendConsoleMessage(EnumChatFormat.color("&c") + line, false);
+                        TAB.getInstance().getPlatform().logWarn(new IChatBaseComponent(line));
                 }
             }
         } catch (IOException ex) {
-            TAB.getInstance().sendConsoleMessage("&cAn error occurred when printing error message into file", true);
-            TAB.getInstance().sendConsoleMessage(ex.getClass().getName() + ": " + ex.getMessage(), true);
+            TAB.getInstance().getPlatform().logWarn(new IChatBaseComponent("An error occurred when printing error message into file"));
+            TAB.getInstance().getPlatform().logWarn(new IChatBaseComponent(ex.getClass().getName() + ": " + ex.getMessage()));
             for (StackTraceElement e : ex.getStackTrace()) {
-                TAB.getInstance().sendConsoleMessage("\t" + e.toString(), true);
+                TAB.getInstance().getPlatform().logWarn(new IChatBaseComponent("\t" + e.toString()));
             }
-            TAB.getInstance().sendConsoleMessage("&cOriginal error: " + message, true);
+            TAB.getInstance().getPlatform().logWarn(new IChatBaseComponent("Original error: " + message));
             for (String line : error) {
-                TAB.getInstance().sendConsoleMessage(line, true);
+                TAB.getInstance().getPlatform().logWarn(new IChatBaseComponent(line));
             }
         }
     }
@@ -211,7 +212,7 @@ public class ErrorManager {
      */
     public double parseDouble(@NotNull String string, double defaultValue) {
         try {
-            return Double.parseDouble(string);
+            return Double.parseDouble(string.replace(",", "."));
         } catch (NumberFormatException e) {
             return defaultValue;
         }

shared/src/main/java/me/neznamy/tab/shared/FeatureManager.java

@@ -251,6 +251,26 @@ public class FeatureManager {
         }
     }
 
+    public void onEntryAdd(TabPlayer packetReceiver, UUID id, String name) {
+        for (TabFeature f : values) {
+            if (!(f instanceof EntryAddListener)) continue;
+            long time = System.nanoTime();
+            ((EntryAddListener)f).onEntryAdd(packetReceiver, id, name);
+            TAB.getInstance().getCPUManager().addTime(f, TabConstants.CpuUsageCategory.PACKET_PLAYER_INFO, System.nanoTime() - time);
+        }
+    }
+
+    public int onLatencyChange(TabPlayer packetReceiver, UUID id, int latency) {
+        int newLatency = latency;
+        for (TabFeature f : values) {
+            if (!(f instanceof LatencyListener)) continue;
+            long time = System.nanoTime();
+            newLatency = ((LatencyListener)f).onLatencyChange(packetReceiver, id, newLatency);
+            TAB.getInstance().getCPUManager().addTime(f, TabConstants.CpuUsageCategory.PACKET_PLAYER_INFO, System.nanoTime() - time);
+        }
+        return newLatency;
+    }
+
     public void registerFeature(@NotNull String featureName, @NotNull TabFeature featureHandler) {
         features.put(featureName, featureHandler);
         values = features.values().toArray(new TabFeature[0]);
@@ -284,6 +304,9 @@ public class FeatureManager {
         FeatureManager featureManager = TAB.getInstance().getFeatureManager();
         int minorVersion = TAB.getInstance().getServerVersion().getMinorVersion();
 
+        if (configuration.getConfig().getBoolean("ping-spoof.enabled", false))
+            featureManager.registerFeature(TabConstants.Feature.PING_SPOOF, new PingSpoof());
+
         if (configuration.getConfig().getBoolean("bossbar.enabled", false)) {
             featureManager.registerFeature(TabConstants.Feature.BOSS_BAR,
                     minorVersion >= 9 ? new BossBarManagerImpl() : TAB.getInstance().getPlatform().getLegacyBossBar());
@@ -306,6 +329,9 @@ public class FeatureManager {
         if (configuration.getConfig().getBoolean("per-world-playerlist.enabled", false)) {
             TabFeature pwp = TAB.getInstance().getPlatform().getPerWorldPlayerList();
             if (pwp != null) featureManager.registerFeature(TabConstants.Feature.PER_WORLD_PLAYER_LIST, pwp);
+            if (configuration.getConfig().getBoolean("layout.enabled", false)) {
+                TAB.getInstance().getMisconfigurationHelper().bothPerWorldPlayerListAndLayoutEnabled();
+            }
         }
 
         if (configuration.getConfig().getBoolean("yellow-number-in-tablist.enabled", true))
@@ -337,6 +363,12 @@ public class FeatureManager {
         // Must be loaded after: Sorting
         if (minorVersion >= 8 && configuration.getConfig().getBoolean("layout.enabled", false)) {
             featureManager.registerFeature(TabConstants.Feature.LAYOUT, new LayoutManagerImpl());
+            if (configuration.getConfig().getBoolean("yellow-number-in-tablist.enabled", true)) {
+                TAB.getInstance().getMisconfigurationHelper().layoutBreaksYellowNumber();
+            }
+            if (configuration.getConfig().getBoolean("prevent-spectator-effect.enabled", false)) {
+                TAB.getInstance().getMisconfigurationHelper().layoutIncludesPreventSpectatorEffect();
+            }
         }
 
         // Must be loaded after: Layout
@@ -360,5 +392,7 @@ public class FeatureManager {
         // Must be loaded after: Global PlayerList, PlayerList, NameTags, YellowNumber, BelowName
         RedisSupport redis = TAB.getInstance().getPlatform().getRedisSupport();
         if (redis != null) TAB.getInstance().getFeatureManager().registerFeature(TabConstants.Feature.REDIS_BUNGEE, redis);
+
+        featureManager.registerFeature(TabConstants.Feature.NICK_COMPATIBILITY, new NickCompatibility());
     }
 }

shared/src/main/java/me/neznamy/tab/shared/MisconfigurationHelper.java

@@ -2,9 +2,13 @@ package me.neznamy.tab.shared;
 
 import java.util.*;
 
+import me.neznamy.tab.api.bossbar.BarColor;
+import me.neznamy.tab.api.bossbar.BarStyle;
 import me.neznamy.tab.shared.TabConstants.Placeholder;
+import me.neznamy.tab.shared.chat.IChatBaseComponent;
 import me.neznamy.tab.shared.features.layout.LayoutManagerImpl;
 import me.neznamy.tab.shared.features.sorting.types.SortingType;
+import me.neznamy.tab.shared.platform.TabPlayer;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
@@ -30,15 +34,25 @@ public class MisconfigurationHelper {
      *          Configured refresh intervals
      */
     public void fixRefreshIntervals(@NotNull Map<String, Integer> refreshIntervals) {
+        int defaultRefresh = refreshIntervals.getOrDefault("default-refresh-interval", 500);
         LinkedHashMap<String, Integer> valuesToFix = new LinkedHashMap<>();
-        for (Map.Entry<String, Integer> entry : refreshIntervals.entrySet()) {
+        for (Map.Entry<String, ?> entry : refreshIntervals.entrySet()) {
             if (entry.getValue() == null) {
                 startupWarn("Refresh interval of " + entry.getKey() +
                         " is set to null. Define a valid value or remove it if you don't want to override default value.");
                 valuesToFix.put(entry.getKey(), Placeholder.MINIMUM_REFRESH_INTERVAL);
                 continue;
             }
-            int interval = entry.getValue();
+            if (!(entry.getValue() instanceof Integer)) {
+                startupWarn("Refresh interval configured for \"" + entry.getKey() +
+                        "\" is not a valid number.");
+                valuesToFix.put(entry.getKey(), 500);
+                continue;
+            }
+            int interval = (int) entry.getValue();
+            if (!entry.getKey().equals("default-refresh-interval") && interval == defaultRefresh) {
+                hint("Refresh interval of " + entry.getKey() + " is same as default interval, therefore there is no need to override it.");
+            }
             if (interval < 0) {
                 startupWarn("Invalid refresh interval configured for " + entry.getKey() +
                         " (" + interval + "). Value cannot be negative.");
@@ -74,10 +88,11 @@ public class MisconfigurationHelper {
             return 1000;
         }
         if (interval % TabConstants.Placeholder.MINIMUM_REFRESH_INTERVAL != 0) {
-            int newInterval = interval - interval % TabConstants.Placeholder.MINIMUM_REFRESH_INTERVAL;
-            if (newInterval == 0) newInterval = TabConstants.Placeholder.MINIMUM_REFRESH_INTERVAL;
-            startupWarn(String.format("Animation \"&e%s&c\" has refresh interval of %s, which is not divisible by " +
-                    TabConstants.Placeholder.MINIMUM_REFRESH_INTERVAL + "! &bUsing %s.", name, interval, newInterval));
+            int min = TabConstants.Placeholder.MINIMUM_REFRESH_INTERVAL;
+            int newInterval = Math.round((float) interval / min) * min; // rounding
+            if (newInterval == 0) newInterval = min;
+            startupWarn(String.format("Animation \"&e%s&c\" has refresh interval of %s, which is not divisible by %s! &bUsing %s.",
+                    name, interval, min, newInterval));
             return newInterval;
         }
         return interval;
@@ -187,6 +202,13 @@ public class MisconfigurationHelper {
                 "Disable global playerlist for the same result, but with better performance.");
     }
 
+    public void bothPerWorldPlayerListAndLayoutEnabled() {
+        startupWarn("Both per world playerlist and layout features are enabled, but layout makes per world playerlist redundant.",
+                "Layout automatically works with all connected players and replaces real player entries with" +
+                        " fake players, making per world playerlist completely useless as real players are pushed out of the playerlist.",
+                "Disable per world playerlist for the same result, but with better performance.");
+    }
+
     public void checkLayoutMap(@NotNull String layoutName, @NotNull Map<String, Object> map) {
         List<String> expectedKeys = Arrays.asList("condition", "fixed-slots", "groups");
         for (String mapKey : map.keySet()) {
@@ -215,6 +237,103 @@ public class MisconfigurationHelper {
         }
     }
 
+    /**
+     * Checks bossbar section configuration for: <p>
+     * - Unknown keys, to let people know if they made a typo <p>
+     * - Missing required properties (text, color, style, progress) and adding them with some default values <p>
+     * - Evaluating static values of color, style and progress if they can represent the required data type
+     *
+     * @param   bossbarSection
+     *          Map section of a bossbar in config
+     * @param   name
+     *          Name of the bossbar defined in config
+     */
+    public void checkBossBarProperties(Map<String, Object> bossbarSection, String name) {
+        // Unknown properties
+        List<String> validProperties = Arrays.asList("style", "color", "progress", "text", "announcement-bar", "display-condition");
+        for (String mapKey : bossbarSection.keySet()) {
+            if (!validProperties.contains(mapKey)) {
+                startupWarn("Unknown property \"" + mapKey + "\" in bossbar \"" + name + "\". Valid properties: " + validProperties);
+            }
+        }
+        // Text
+        if (!bossbarSection.containsKey("text")) {
+            startupWarn("Bossbar \"" + name + "\" is missing \"text\" property.");
+            bossbarSection.put("text", "Text is not defined!");
+        }
+        // Color
+        if (bossbarSection.containsKey("color")) {
+            String color = bossbarSection.get("color").toString();
+            if (!color.contains("%")) {
+                try {
+                    BarColor.valueOf(color.toUpperCase(Locale.US));
+                } catch (IllegalArgumentException e) {
+                    startupWarn("Bossbar \"" + name + " has color set to \"" + color + "\", which is not one of the supported colors " +
+                            Arrays.toString(BarColor.values()) + " or a placeholder evaluating to one.");
+                    bossbarSection.put("color", "PURPLE");
+                }
+            }
+        } else {
+            startupWarn("Bossbar \"" + name + "\" is missing \"color\" property.");
+            bossbarSection.put("color", "PURPLE");
+        }
+        // Style
+        if (bossbarSection.containsKey("style")) {
+            String style = bossbarSection.get("style").toString();
+            if (!style.contains("%")) {
+                try {
+                    BarStyle.valueOf(style.toUpperCase(Locale.US));
+                } catch (IllegalArgumentException e) {
+                    startupWarn("Bossbar \"" + name + " has style set to \"" + style + "\", which is not one of the supported styles " +
+                            Arrays.toString(BarStyle.values()) + " or a placeholder evaluating to one.");
+                    bossbarSection.put("style", "PROGRESS");
+                }
+            }
+        } else {
+            startupWarn("Bossbar \"" + name + "\" is missing \"style\" property.");
+            bossbarSection.put("style", "PROGRESS");
+        }
+        // Progress
+        if (bossbarSection.containsKey("progress")) {
+            String progress = bossbarSection.get("progress").toString();
+            if (!progress.contains("%")) {
+                try {
+                    Float.parseFloat(progress);
+                } catch (IllegalArgumentException e) {
+                    startupWarn("Bossbar \"" + name + " has progress set to \"" + progress + "\", which is not a valid number between 0 and 100 or a placeholder evaluating to one.");
+                    bossbarSection.put("progress", "100");
+                }
+            }
+        } else {
+            startupWarn("Bossbar \"" + name + "\" is missing \"progress\" property.");
+            bossbarSection.put("progress", "100");
+        }
+    }
+
+    public void teamAntiOverrideDisabled() {
+        startupWarn("anti-override for scoreboard-teams is disabled in config. This is usually a mistake. If you notice the" +
+                " feature randomly breaking, enable it back.");
+    }
+
+    public void tablistAntiOverrideDisabled() {
+        startupWarn("anti-override for tablist-name-formatting is disabled in config. This is usually a mistake. If you notice the" +
+                " feature randomly breaking, enable it back.");
+    }
+
+    public void nonLastNoConditionScoreboard(@NotNull String noConditionScoreboard, @NotNull String nextScoreboard) {
+        startupWarn("Scoreboard \"" + noConditionScoreboard + "\" has no display condition set, however, there is" +
+                " another scoreboard in the chain (" + nextScoreboard + "). Scoreboards are checked from top to bottom" +
+                " until a scoreboard with meeting condition or no condition is found. Because of this, the scoreboard (" +
+                nextScoreboard + ") after the no-condition scoreboard (" + noConditionScoreboard + ") will never be displayed. " +
+                "Unless this is intentional to externally display the scoreboard (commands, API), this is a mistake.");
+    }
+
+    public void layoutBreaksYellowNumber() {
+        startupWarn("Layout feature breaks yellow-number feature, because it replaces real player with fake slots " +
+                "with different usernames for more reliable functionality. Disable yellow-number feature, as it will only look bad " +
+                "and consume resources.");
+    }
+
     /**
      * Sends a startup warn message into console
      *
@@ -224,7 +343,7 @@ public class MisconfigurationHelper {
     private void startupWarn(@NotNull String... messages) {
         warnCount++;
         for (String message : messages) {
-            TAB.getInstance().sendConsoleMessage("&c[WARN] " + message, true);
+            TAB.getInstance().getPlatform().logWarn(IChatBaseComponent.fromColoredText(message));
         }
     }
 
@@ -233,7 +352,7 @@ public class MisconfigurationHelper {
      */
     public void printWarnCount() {
         if (warnCount == 0) return;
-        TAB.getInstance().sendConsoleMessage("&eFound a total of " + warnCount + " issues.", true);
+        TAB.getInstance().getPlatform().logWarn(new IChatBaseComponent("Found a total of " + warnCount + " issues."));
         // Reset after printing to prevent count going up on each reload
         warnCount = 0;
     }
@@ -244,12 +363,64 @@ public class MisconfigurationHelper {
 
     public void invalidNumberForBossBarProgress(@NotNull String bossBar, @NotNull String input, @NotNull String configuredValue) {
         if (configuredValue.contains("%")) {
-            TAB.getInstance().sendConsoleMessage("&c[WARN] Placeholder \"" + configuredValue +
-                    "\" used in BossBar progress of \"" + bossBar + "\" returned value, which cannot be evaluated to a number between 0 and 100 (\"" + input + "\")", true);
+            TAB.getInstance().getPlatform().logWarn(new IChatBaseComponent("Placeholder \"" + configuredValue +
+                    "\" used in BossBar progress of \"" + bossBar + "\" returned value, which cannot be evaluated to a number between 0 and 100 (\"" + input + "\")"));
 
         } else {
-            TAB.getInstance().sendConsoleMessage("&c[WARN] BossBar \"" + bossBar +
-                    "\" has invalid input configured for progress (\"" + configuredValue + "\"). Expecting a number between 0 and 100 or a placeholder returning one.", true);
+            TAB.getInstance().getPlatform().logWarn(new IChatBaseComponent("BossBar \"" + bossBar +
+                    "\" has invalid input configured for progress (\"" + configuredValue + "\"). Expecting a number between 0 and 100 or a placeholder returning one."));
         }
     }
+
+    public void invalidInputForNumericSorting(SortingType type, String placeholder, String output, TabPlayer player) {
+        TAB.getInstance().getPlatform().logWarn(new IChatBaseComponent("Placeholder " + placeholder + " used in sorting type " +
+                type + " returned \"" + output + "\" for player " + player.getName() + ", which is not a valid number."));
+    }
+
+    // ------------------------
+    // Hints
+    // ------------------------
+
+    @SuppressWarnings("unchecked")
+    public void checkHeaderFooterForRedundancy(Map<String, Object> configSection) {
+        String defaultHeader = String.valueOf(configSection.get("header"));
+        String defaultFooter = String.valueOf(configSection.get("footer"));
+        if (configSection.get("per-world") instanceof Map) {
+            Map<String, Map<String, Object>> map = (Map<String, Map<String, Object>>) configSection.get("per-world");
+            for (Map.Entry<String, Map<String, Object>> entry : map.entrySet()) {
+                String world = entry.getKey();
+                if (String.valueOf(entry.getValue().getOrDefault("header", "-")).equals(defaultHeader)) {
+                    hint("Per-world header for world \"" + world + "\" is identical to default header. " +
+                            "This is redundant and can be removed for cleaner config.");
+                }
+                if (String.valueOf(entry.getValue().getOrDefault("footer", "-")).equals(defaultFooter)) {
+                    hint("Per-world footer for world \"" + world + "\" is identical to default footer. " +
+                            "This is redundant and can be removed for cleaner config.");
+                }
+            }
+        }
+        if (configSection.get("per-server") instanceof Map) {
+            Map<String, Map<String, Object>> map = (Map<String, Map<String, Object>>) configSection.get("per-server");
+            for (Map.Entry<String, Map<String, Object>> entry : map.entrySet()) {
+                String server = entry.getKey();
+                if (String.valueOf(entry.getValue().getOrDefault("header", "-")).equals(defaultHeader)) {
+                    hint("Per-server header for server \"" + server + "\" is identical to default header. " +
+                            "This is redundant and can be removed for cleaner config.");
+                }
+                if (String.valueOf(entry.getValue().getOrDefault("footer", "-")).equals(defaultFooter)) {
+                    hint("Per-server footer for server \"" + server + "\" is identical to default footer. " +
+                            "This is redundant and can be removed for cleaner config.");
+                }
+            }
+        }
+    }
+
+    public void layoutIncludesPreventSpectatorEffect() {
+        hint("Layout feature automatically includes prevent-spectator-effect, therefore the feature can be disabled " +
+                "for better performance, as it is not needed at all (assuming it is configured to always display some layout).");
+    }
+
+    public void hint(@NotNull String message) {
+        TAB.getInstance().getPlatform().logInfo(IChatBaseComponent.fromColoredText("&6[Hint] " + message));
+    }
 }

shared/src/main/java/me/neznamy/tab/shared/ProtocolVersion.java

@@ -14,6 +14,7 @@ public enum ProtocolVersion {
     UNKNOWN_SERVER_VERSION ("Unknown"),
     UNKNOWN_CLIENT_VERSION ("Unknown"),
     PROXY   ("Proxy"),
+    V1_20_2 (764),
     V1_20_1 (763),
     V1_20   (763),
     V1_19_4 (762),

shared/src/main/java/me/neznamy/tab/shared/TAB.java

@@ -12,7 +12,7 @@ import me.neznamy.tab.api.scoreboard.ScoreboardManager;
 import me.neznamy.tab.api.tablist.HeaderFooterManager;
 import me.neznamy.tab.api.tablist.TabListFormatManager;
 import me.neznamy.tab.api.nametag.NameTagManager;
-import me.neznamy.tab.shared.hook.ViaVersionHook;
+import me.neznamy.tab.shared.cpu.CpuManager;
 import me.neznamy.tab.shared.platform.Platform;
 import me.neznamy.tab.shared.command.DisabledCommand;
 import me.neznamy.tab.shared.command.TabCommand;
@@ -21,6 +21,7 @@ import me.neznamy.tab.shared.event.EventBusImpl;
 import me.neznamy.tab.shared.event.impl.TabLoadEventImpl;
 import me.neznamy.tab.shared.features.PlaceholderManagerImpl;
 import me.neznamy.tab.shared.platform.TabPlayer;
+import me.neznamy.tab.shared.proxy.ProxyPlatform;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 import org.yaml.snakeyaml.error.YAMLException;
@@ -36,7 +37,7 @@ import java.util.concurrent.ConcurrentHashMap;
 public class TAB extends TabAPI {
 
     /** Instance of this class */
-    @Getter @Setter private static TAB instance;
+    @Getter private static TAB instance;
 
     /** Player data storage */
     private final Map<UUID, TabPlayer> data = new ConcurrentHashMap<>();
@@ -54,7 +55,7 @@ public class TAB extends TabAPI {
     @Getter private final DisabledCommand disabledCommand = new DisabledCommand();
 
     /** Implementation of platform the plugin is installed on for platform-specific calls */
-    @Getter private final Platform platform;
+    @Getter private final Platform<?> platform;
 
     /**
      * CPU manager for thread and task management as well as
@@ -100,19 +101,28 @@ public class TAB extends TabAPI {
     /** Helper for detecting misconfiguration in configs and send it to user */
     @Getter private final MisconfigurationHelper misconfigurationHelper = new MisconfigurationHelper();
 
+    /**
+     * Creates new instance using given platform and loads it
+     *
+     * @param   platform
+     *          Platform interface
+     */
+    public static void create(@NotNull Platform<?> platform) {
+        instance = new TAB(platform);
+        instance.load();
+    }
+
     /**
      * Constructs new instance with given parameters and sets this
      * new instance as {@link me.neznamy.tab.api.TabAPI} instance.
      *
      * @param   platform
      *          Platform interface
-     * @param   serverVersion
-     *          Version the server is running on
      */
-    public TAB(@NotNull Platform platform, @NotNull ProtocolVersion serverVersion, @NotNull File dataFolder) {
+    private TAB(@NotNull Platform<?> platform) {
         this.platform = platform;
-        this.serverVersion = serverVersion;
-        this.dataFolder = dataFolder;
+        this.serverVersion = platform.getServerVersion();
+        this.dataFolder = platform.getDataFolder();
         this.errorManager = new ErrorManager(this);
         try {
             eventBus = new EventBusImpl();
@@ -120,6 +130,12 @@ public class TAB extends TabAPI {
             //1.7.10 or lower
         }
         TabAPI.setInstance(this);
+        platform.registerListener();
+        platform.registerCommand();
+        platform.startMetrics();
+        if (platform instanceof ProxyPlatform) {
+            ((ProxyPlatform<?>) platform).registerChannel();
+        }
     }
 
     /**
@@ -157,12 +173,11 @@ public class TAB extends TabAPI {
             if (eventBus != null) eventBus.fire(TabLoadEventImpl.getInstance());
             pluginDisabled = false;
             cpu.enable();
-            ViaVersionHook.getInstance().printProxyWarn();
             misconfigurationHelper.printWarnCount();
-            sendConsoleMessage("&aEnabled in " + (System.currentTimeMillis()-time) + "ms", true);
+            platform.logInfo(IChatBaseComponent.fromColoredText("&aEnabled in " + (System.currentTimeMillis()-time) + "ms"));
             return configuration.getMessages().getReloadSuccess();
         } catch (YAMLException e) {
-            sendConsoleMessage("&cDid not enable due to a broken configuration file.", true);
+            platform.logWarn(IChatBaseComponent.fromColoredText("&cDid not enable due to a broken configuration file."));
             kill();
             return (configuration == null ? "&4Failed to reload, file %file% has broken syntax. Check console for more info."
                     : configuration.getMessages().getReloadFailBrokenFile()).replace("%file%", brokenFile);
@@ -183,7 +198,7 @@ public class TAB extends TabAPI {
             long time = System.currentTimeMillis();
             if (configuration.getMysql() != null) configuration.getMysql().closeConnection();
             featureManager.unload();
-            sendConsoleMessage("&aDisabled in " + (System.currentTimeMillis()-time) + "ms", true);
+            platform.logInfo(IChatBaseComponent.fromColoredText("&aDisabled in " + (System.currentTimeMillis()-time) + "ms"));
         } catch (Exception | NoClassDefFoundError e) {
             errorManager.criticalError("Failed to disable", e);
         }
@@ -277,10 +292,6 @@ public class TAB extends TabAPI {
         return data.get(uniqueId);
     }
 
-    public void sendConsoleMessage(@NotNull String message, boolean translateColors) {
-        platform.sendConsoleMessage(translateColors ? IChatBaseComponent.fromColoredText(message) : new IChatBaseComponent(message));
-    }
-
     @Override
     public @Nullable HeaderFooterManager getHeaderFooterManager() {
         return featureManager.getFeature(TabConstants.Feature.HEADER_FOOTER);
@@ -313,6 +324,7 @@ public class TAB extends TabAPI {
      *          Message to send
      */
     public void debug(@NotNull String message) {
-        if (configuration != null && configuration.isDebugMode()) sendConsoleMessage("&9[DEBUG] " + message, true);
+        if (configuration != null && configuration.isDebugMode())
+            platform.logInfo(IChatBaseComponent.fromColoredText("&9[DEBUG] " + message));
     }
 }

shared/src/main/java/me/neznamy/tab/shared/TabConstants.java

@@ -82,7 +82,7 @@ public class TabConstants {
 
         public static final String COMMAND_BOSSBAR_ANNOUNCE         = "tab.announce.bar";
         public static final String COMMAND_BOSSBAR_TOGGLE           = "tab.bossbar.toggle";
-        public static final String COMMAND_BOSSBAR_SEND             = "tab.send.bar";
+        public static final String COMMAND_BOSSBAR_TOGGLE_OTHER     = "tab.bossbar.toggle.other";
 
         public static final String COMMAND_MYSQL_DOWNLOAD           = "tab.mysql.download";
         public static final String COMMAND_MYSQL_UPLOAD             = "tab.mysql.upload";
@@ -192,6 +192,7 @@ public class TabConstants {
         public static final String UNLIMITED_NAME_TAGS = "NameTagX";
         public static final String UNLIMITED_NAME_TAGS_PACKET_LISTENER = "nametagx-packet";
         public static final String UNLIMITED_NAME_TAGS_VEHICLE_REFRESHER = "nametagx-vehicle";
+        public static final String PING_SPOOF = "PingSpoof";
 
         //Bukkit only
         public static final String PER_WORLD_PLAYER_LIST = "PerWorldPlayerList";
@@ -203,6 +204,7 @@ public class TabConstants {
 
         //additional info displayed in cpu command
         public static final String PACKET_DESERIALIZING = "Packet deserializing";
+        public static final String NICK_COMPATIBILITY = "Nick";
 
         public static String scoreboardLine(String line) {
             return "scoreboard-" + line;
@@ -280,6 +282,7 @@ public class TabConstants {
         public static final String HEALTH = "%health%";
 
         public static final int MINIMUM_REFRESH_INTERVAL = 50;
+        public static final int RETURN_TIME_WARN_THRESHOLD = 50;
 
         public static String condition(String name) {
             return "%condition:" + name + "%";
@@ -302,7 +305,6 @@ public class TabConstants {
 
         public static final String PERMISSION_SYSTEM = "permission_system";
         public static final String GLOBAL_PLAYER_LIST_ENABLED = "global_playerlist_enabled";
-        public static final String PLACEHOLDER_API = "placeholderapi";
         public static final String SERVER_VERSION = "server_version";
         public static final String UNLIMITED_NAME_TAG_MODE_ENABLED = "unlimited_nametag_mode_enabled";
 

shared/src/main/java/me/neznamy/tab/shared/backend/BackendPlatform.java

@@ -1,13 +1,16 @@
 package me.neznamy.tab.shared.backend;
 
+import me.neznamy.tab.api.placeholder.PlaceholderManager;
 import me.neznamy.tab.shared.GroupManager;
+import me.neznamy.tab.shared.TAB;
 import me.neznamy.tab.shared.TabConstants;
 import me.neznamy.tab.shared.hook.LuckPermsHook;
+import me.neznamy.tab.shared.placeholders.UniversalPlaceholderRegistry;
 import me.neznamy.tab.shared.platform.Platform;
 import me.neznamy.tab.shared.features.redis.RedisSupport;
 import org.jetbrains.annotations.NotNull;
 
-public interface BackendPlatform extends Platform {
+public interface BackendPlatform<T> extends Platform<T> {
 
     @Override
     @NotNull default GroupManager detectPermissionPlugin() {
@@ -18,4 +21,33 @@ public interface BackendPlatform extends Platform {
     }
 
     default RedisSupport getRedisSupport() { return null; }
+
+    @Override
+    default void registerPlaceholders() {
+        UniversalPlaceholderRegistry registry = new UniversalPlaceholderRegistry();
+        PlaceholderManager manager = TAB.getInstance().getPlaceholderManager();
+        manager.registerPlayerPlaceholder(TabConstants.Placeholder.HEALTH, 100,
+                p -> (int) Math.ceil(((BackendTabPlayer)p).getHealth()));
+        manager.registerPlayerPlaceholder(TabConstants.Placeholder.DISPLAY_NAME, 500,
+                p -> ((BackendTabPlayer)p).getDisplayName());
+        manager.registerServerPlaceholder(TabConstants.Placeholder.TPS, 1000,
+                () -> registry.formatTPS(getTPS()));
+        manager.registerServerPlaceholder(TabConstants.Placeholder.MSPT, 1000,
+                () -> registry.format(getMSPT()));
+        registry.registerPlaceholders(manager);
+    }
+
+    /**
+     * Returns server's TPS for {@link TabConstants.Placeholder#TPS} placeholder
+     *
+     * @return  server's TPS
+     */
+    double getTPS();
+
+    /**
+     * Returns server's MSPT for {@link TabConstants.Placeholder#MSPT} placeholder
+     *
+     * @return  server's MSPT
+     */
+    double getMSPT();
 }

shared/src/main/java/me/neznamy/tab/shared/backend/BackendTabPlayer.java

@@ -1,32 +1,55 @@
 package me.neznamy.tab.shared.backend;
 
+import me.neznamy.tab.shared.TAB;
+import me.neznamy.tab.shared.backend.entityview.EntityView;
+import me.neznamy.tab.shared.hook.ViaVersionHook;
 import me.neznamy.tab.shared.platform.TabPlayer;
 import org.jetbrains.annotations.NotNull;
 
 import java.util.UUID;
 
+/**
+ * TabPlayer extension for backend platforms, which have access to
+ * more data and can display it.
+ */
 public abstract class BackendTabPlayer extends TabPlayer {
 
     /**
      * Constructs new instance with given parameters
      *
-     * @param player          platform-specific player object
-     * @param uniqueId        Player's unique ID
-     * @param name            Player's name
-     * @param server          Player's server
-     * @param world           Player's world
-     * @param protocolVersion Player's game version
+     * @param   player
+     *          platform-specific player object
+     * @param   uniqueId
+     *          Player's unique ID
+     * @param   name
+     *          Player's name
+     * @param   world
+     *          Player's world
      */
-    protected BackendTabPlayer(@NotNull Object player, @NotNull UUID uniqueId, @NotNull String name,
-                               @NotNull String server, @NotNull String world, int protocolVersion) {
-        super(player, uniqueId, name, server, world, protocolVersion, true);
+    protected BackendTabPlayer(@NotNull BackendPlatform<?> platform, @NotNull Object player, @NotNull UUID uniqueId,
+                               @NotNull String name, @NotNull String world) {
+        super(platform, player, uniqueId, name, TAB.getInstance().getConfiguration().getServerName(),
+                world, ViaVersionHook.getInstance().getPlayerVersion(uniqueId, name), true);
     }
 
-    public abstract void spawnEntity(int entityId, @NotNull UUID id, @NotNull Object entityType, @NotNull Location location, @NotNull EntityData data);
+    /**
+     * Returns player's health for {@link me.neznamy.tab.shared.TabConstants.Placeholder#HEALTH} placeholder.
+     *
+     * @return  player's health
+     */
+    public abstract double getHealth();
 
-    public abstract void updateEntityMetadata(int entityId, @NotNull EntityData data);
+    /**
+     * Returns player's display name for {@link me.neznamy.tab.shared.TabConstants.Placeholder#DISPLAY_NAME} placeholder.
+     *
+     * @return  player's display name
+     */
+    public abstract String getDisplayName();
 
-    public abstract void teleportEntity(int entityId, @NotNull Location location);
-
-    public abstract void destroyEntities(int... entities);
+    /**
+     * Returns player's entity view
+     *
+     * @return  player's entity view
+     */
+    public abstract EntityView getEntityView();
 }

shared/src/main/java/me/neznamy/tab/shared/backend/Location.java

@@ -9,6 +9,4 @@ public class Location {
     private double x;
     private double y;
     private double z;
-    private float yaw;
-    private float pitch;
 }

shared/src/main/java/me/neznamy/tab/shared/backend/entityview/DummyEntityView.java

@@ -0,0 +1,75 @@
+package me.neznamy.tab.shared.backend.entityview;
+
+import me.neznamy.tab.shared.backend.EntityData;
+import me.neznamy.tab.shared.backend.Location;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.UUID;
+
+public class DummyEntityView implements EntityView {
+
+    @Override
+    public void spawnEntity(int entityId, @NotNull UUID id, @NotNull Object entityType, @NotNull Location location, @NotNull EntityData data) {
+        throw new UnsupportedOperationException("Not available on this platform");
+    }
+
+    @Override
+    public void updateEntityMetadata(int entityId, @NotNull EntityData data) {
+        throw new UnsupportedOperationException("Not available on this platform");
+    }
+
+    @Override
+    public void teleportEntity(int entityId, @NotNull Location location) {
+        throw new UnsupportedOperationException("Not available on this platform");
+    }
+
+    @Override
+    public void destroyEntities(int... entities) {
+        throw new UnsupportedOperationException("Not available on this platform");
+    }
+
+    @Override
+    public boolean isDestroyPacket(Object packet) {
+        throw new UnsupportedOperationException("Not available on this platform");
+    }
+
+    @Override
+    public boolean isTeleportPacket(Object packet) {
+        throw new UnsupportedOperationException("Not available on this platform");
+    }
+
+    @Override
+    public boolean isNamedEntitySpawnPacket(Object packet) {
+        throw new UnsupportedOperationException("Not available on this platform");
+    }
+
+    @Override
+    public boolean isMovePacket(Object packet) {
+        throw new UnsupportedOperationException("Not available on this platform");
+    }
+
+    @Override
+    public boolean isLookPacket(Object packet) {
+        throw new UnsupportedOperationException("Not available on this platform");
+    }
+
+    @Override
+    public int getTeleportEntityId(Object teleportPacket) {
+        throw new UnsupportedOperationException("Not available on this platform");
+    }
+
+    @Override
+    public int getMoveEntityId(Object movePacket) {
+        throw new UnsupportedOperationException("Not available on this platform");
+    }
+
+    @Override
+    public int getSpawnedPlayer(Object playerSpawnPacket) {
+        throw new UnsupportedOperationException("Not available on this platform");
+    }
+
+    @Override
+    public int[] getDestroyedEntities(Object destroyPacket) {
+        throw new UnsupportedOperationException("Not available on this platform");
+    }
+}

shared/src/main/java/me/neznamy/tab/shared/backend/entityview/EntityView.java

@@ -0,0 +1,36 @@
+package me.neznamy.tab.shared.backend.entityview;
+
+import me.neznamy.tab.shared.backend.EntityData;
+import me.neznamy.tab.shared.backend.Location;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.UUID;
+
+public interface EntityView {
+
+    void spawnEntity(int entityId, @NotNull UUID id, @NotNull Object entityType, @NotNull Location location, @NotNull EntityData data);
+
+    void updateEntityMetadata(int entityId, @NotNull EntityData data);
+
+    void teleportEntity(int entityId, @NotNull Location location);
+
+    void destroyEntities(int... entities);
+
+    boolean isDestroyPacket(Object packet);
+
+    boolean isTeleportPacket(Object packet);
+
+    boolean isNamedEntitySpawnPacket(Object packet);
+
+    boolean isMovePacket(Object packet);
+
+    boolean isLookPacket(Object packet);
+
+    int getTeleportEntityId(Object teleportPacket);
+
+    int getMoveEntityId(Object movePacket);
+
+    int getSpawnedPlayer(Object playerSpawnPacket);
+
+    int[] getDestroyedEntities(Object destroyPacket);
+}

shared/src/main/java/me/neznamy/tab/shared/backend/features/unlimitedtags/ArmorStand.java

@@ -110,8 +110,8 @@ public class ArmorStand {
 
     public void spawn(BackendTabPlayer viewer) {
         visible = calculateVisibility();
-        viewer.spawnEntity(entityId, uuid, manager.getArmorStandType(),
-                new Location(manager.getX(owner), getYLocation(viewer), manager.getZ(owner), 0, 0),
+        viewer.getEntityView().spawnEntity(entityId, uuid, manager.getArmorStandType(),
+                new Location(manager.getX(owner), getYLocation(viewer), manager.getZ(owner)),
                 createDataWatcher(property.getFormat(viewer), viewer));
     }
 
@@ -137,10 +137,9 @@ public class ArmorStand {
      */
     protected boolean isNameVisiblyEmpty(@NotNull String displayName) {
         if (displayName.length() == 0) return true;
-        if (!displayName.startsWith(EnumChatFormat.COLOR_STRING) && !displayName.startsWith("&") && !displayName.startsWith("#")) return false;
-        String text = IChatBaseComponent.fromColoredText(displayName).toRawText();
-        if (text.contains(" ")) text = text.replace(" ", "");
-        return text.length() == 0;
+        String rawText = displayName.contains(" ") ? displayName.replace(" ", "") : displayName;
+        if (!rawText.startsWith(EnumChatFormat.COLOR_STRING) && !rawText.startsWith("&") && !rawText.startsWith("#")) return false;
+        return IChatBaseComponent.fromColoredText(rawText).toRawText().length() == 0;
     }
 
     /**
@@ -179,7 +178,7 @@ public class ArmorStand {
      */
     public void updateMetadata() {
         for (BackendTabPlayer viewer : asm.getNearbyPlayers()) {
-            viewer.updateEntityMetadata(entityId, createDataWatcher(property.getFormat(viewer), viewer));
+            viewer.getEntityView().updateEntityMetadata(entityId, createDataWatcher(property.getFormat(viewer), viewer));
         }
     }
 
@@ -190,7 +189,7 @@ public class ArmorStand {
     }
 
     public void sendTeleportPacket(@NotNull BackendTabPlayer viewer) {
-        viewer.teleportEntity(entityId, new Location(manager.getX(owner), getYLocation(viewer), manager.getZ(owner), 0, 0));
+        viewer.getEntityView().teleportEntity(entityId, new Location(manager.getX(owner), getYLocation(viewer), manager.getZ(owner)));
     }
 
     /**

shared/src/main/java/me/neznamy/tab/shared/backend/features/unlimitedtags/BackendArmorStandManager.java

@@ -117,7 +117,7 @@ public class BackendArmorStandManager implements ArmorStandManager {
         // creating new delayed task every time someone sneaks can be abused and cause OOM
         // RIP 1.8.0
         for (ArmorStand as : armorStandArray) {
-            viewer.destroyEntities(as.getEntityId());
+            viewer.getEntityView().destroyEntities(as.getEntityId());
         }
         for (ArmorStand a : armorStandArray) {
             a.spawn(viewer);
@@ -173,7 +173,7 @@ public class BackendArmorStandManager implements ArmorStandManager {
      */
     public void destroy(@NotNull BackendTabPlayer viewer) {
         for (ArmorStand as : armorStandArray) {
-            viewer.destroyEntities(as.getEntityId());
+            viewer.getEntityView().destroyEntities(as.getEntityId());
         }
         unregisterPlayer(viewer);
     }
@@ -182,7 +182,7 @@ public class BackendArmorStandManager implements ArmorStandManager {
     public void destroy() {
         for (BackendTabPlayer viewer : nearbyPlayers) {
             for (ArmorStand as : armorStandArray) {
-                viewer.destroyEntities(as.getEntityId());
+                viewer.getEntityView().destroyEntities(as.getEntityId());
             }
         }
         nearbyPlayerList.clear();
@@ -203,7 +203,7 @@ public class BackendArmorStandManager implements ArmorStandManager {
 
     public void updateMetadata(@NotNull BackendTabPlayer viewer) {
         for (ArmorStand a : armorStandArray) {
-            viewer.updateEntityMetadata(a.entityId, a.createDataWatcher(a.getProperty().getFormat(viewer), viewer));
+            viewer.getEntityView().updateEntityMetadata(a.entityId, a.createDataWatcher(a.getProperty().getFormat(viewer), viewer));
         }
     }
 }

shared/src/main/java/me/neznamy/tab/shared/backend/features/unlimitedtags/BackendNameTagX.java

@@ -4,6 +4,7 @@ import lombok.Getter;
 import me.neznamy.tab.shared.TabConstants;
 import me.neznamy.tab.shared.TAB;
 import me.neznamy.tab.shared.features.types.GameModeListener;
+import me.neznamy.tab.shared.features.types.PacketSendListener;
 import me.neznamy.tab.shared.platform.TabPlayer;
 import me.neznamy.tab.shared.backend.BackendTabPlayer;
 import me.neznamy.tab.shared.backend.EntityData;
@@ -12,8 +13,9 @@ import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
 import java.util.List;
+import java.util.UUID;
 
-public abstract class BackendNameTagX extends NameTagX implements GameModeListener {
+public abstract class BackendNameTagX extends NameTagX implements GameModeListener, PacketSendListener {
 
     /** Vehicle manager reference */
     @Getter private final VehicleRefresher vehicleManager = new VehicleRefresher(this);
@@ -90,7 +92,7 @@ public abstract class BackendNameTagX extends NameTagX implements GameModeListen
      */
     private void spawnArmorStands(@NotNull TabPlayer viewer, @NotNull TabPlayer target) {
         if (viewer.getVersion().getMinorVersion() < 8) return;
-        if (target == viewer || isPlayerDisabled(target)) return;
+        if (target == viewer || isPlayerDisabled(target) || isDead(target)) return;
         if (!areInSameWorld(viewer, target)) return;
         if (getDistance(viewer, target) <= 48 && canSee(viewer, target) && !target.isVanished())
             getArmorStandManager(target).spawn((BackendTabPlayer) viewer);
@@ -156,6 +158,36 @@ public abstract class BackendNameTagX extends NameTagX implements GameModeListen
         }
     }
 
+    @Override
+    public void onPacketSend(@NotNull TabPlayer receiver, @NotNull Object packet) {
+        if (receiver.getVersion().getMinorVersion() < 8) return;
+        if (!receiver.isLoaded() || getDisableChecker().isDisabledPlayer(receiver) || getUnlimitedDisableChecker().isDisabledPlayer(receiver)) return;
+        BackendTabPlayer player = (BackendTabPlayer) receiver;
+        if (player.getEntityView().isMovePacket(packet) && !player.getEntityView().isLookPacket(packet)) { //ignoring head rotation only packets
+            packetListener.onEntityMove(player, player.getEntityView().getMoveEntityId(packet));
+        } else if (player.getEntityView().isTeleportPacket(packet)) {
+            packetListener.onEntityMove(player, player.getEntityView().getTeleportEntityId(packet));
+        } else if (player.getEntityView().isNamedEntitySpawnPacket(packet)) {
+            packetListener.onEntitySpawn(player, player.getEntityView().getSpawnedPlayer(packet));
+        } else if (player.getEntityView().isDestroyPacket(packet)) {
+            packetListener.onEntityDestroy(player, player.getEntityView().getDestroyedEntities(packet));
+        }
+    }
+
+    public void sneak(UUID playerUUID, boolean sneaking) {
+        TabPlayer p = TAB.getInstance().getPlayer(playerUUID);
+        if (p == null || isPlayerDisabled(p)) return;
+        TAB.getInstance().getCPUManager().runMeasuredTask(featureName, TabConstants.CpuUsageCategory.PLAYER_SNEAK,
+                () -> getArmorStandManager(p).sneak(sneaking));
+    }
+
+    public void respawn(UUID playerUUID) {
+        TabPlayer respawned = TAB.getInstance().getPlayer(playerUUID);
+        if (respawned == null || isPlayerDisabled(respawned)) return;
+        TAB.getInstance().getCPUManager().runMeasuredTask(featureName, TabConstants.CpuUsageCategory.PLAYER_RESPAWN,
+                () -> getArmorStandManager(respawned).teleport());
+    }
+
     public int getEntityId(@NotNull TabPlayer player) {
         return getEntityId(player.getPlayer());
     }
@@ -202,4 +234,8 @@ public abstract class BackendNameTagX extends NameTagX implements GameModeListen
     public abstract double getZ(@NotNull TabPlayer player);
 
     public abstract EntityData createDataWatcher(@NotNull TabPlayer viewer, byte flags, @NotNull String displayName, boolean nameVisible);
+
+    public abstract void runInEntityScheduler(Object entity, Runnable task);
+
+    public abstract boolean isDead(TabPlayer player);
 }