Bump version to 1.0.2

This disables the sponge plugin annotation processor and uses our own mcmod.info

.gitignore

@@ -19,9 +19,6 @@ hs_err_pid*
 # Ignore IDEA directory
 .idea/*
 
-# Include the project's code style settings file
-!.idea/codeStyleSettings.xml
-
 # Include the project's dictionary
 !.idea/dictionaries/
 !.idea/dictionaries/*

.travis.yml

@@ -1,7 +1,7 @@
 sudo: false
 
 language: java
-jdk: oraclejdk7
+jdk: oraclejdk8
 
 cache:
   directories:

ISSUE_TEMPLATE.md

@@ -1,12 +1,11 @@
-### What version of ViaVersion are you using? Type /ver viaversion
+### What is the output link of /viaversion dump? 
 
-### What version of Spigot are you using? Type /ver
-
-### What plugins are you using? Type /plugins
 
 ### Are you using any additional software like BungeeCord? If so, what software and version? (Please list your plugins as well)
 
+
 ### How does this error happen? login? Using an item? 
 
+
 ### Is there an error in the console? Use pastebin.com. Is there a kick message?
 

README.md

@@ -1,10 +1,16 @@
-# ViaVersion 0.9.5
+# ViaVersion 1.0.0 - Spigot, Sponge, BungeeCord
 [![Build Status](https://travis-ci.org/MylesIsCool/ViaVersion.svg?branch=master)](https://travis-ci.org/MylesIsCool/ViaVersion)
 [![Gitter](https://badges.gitter.im/MylesIsCool/ViaVersion.svg)](https://gitter.im/MylesIsCool/ViaVersion)
 
+IRC: [#viaversion](http://irc.spi.gt/iris/?channels=viaversion) on irc.spi.gt for Support.
+
 **Allows the connection of higher client versions to lower server versions**
 
-Allows 1.10, 1.9 on 1.8 server and 1.10 on a 1.9 server.
+Supported Versions:
+
+[![Table] (http://i.imgur.com/SVVhFQ4.png)](http://i.imgur.com/SVVhFQ4.png)
+
+On Bukkit you may also use ProtocolSupport, but ensure you have the right build for your server version.
 
 **User Docs:** https://docs.viaversion.com/display/VIAVERSION/
 
@@ -14,40 +20,14 @@ Allows 1.10, 1.9 on 1.8 server and 1.10 on a 1.9 server.
 
 Sources:
 --------
+**wiki.vg** (Used for various information, we also contribute back)
 
-**wiki.vg** (Protocol info, though I did have to find a lot myself)
-
-**Burger** We use this tool to get protocol and other useful information for new / undocumented Minecraft versions
+**Burger** (See [PAaaS](https://github.com/Matsv/Paaas))
 
 **OpenNBT** (used for slot rewriting)
 
 
 
-All Time Contributors:
---------
-
-**Myself** (harhar)
-
-**Matsv**
-
-**HugoDaBosss**
-
-**SanderGielisse**
-
-**Paulomart**
-
-**gigosaurus**
-
-**fillefilip8**
-
-**lenis0012**
-
-**fuzzy_bot**
-
-**joserobjr**
-
-
-
 Releases / Dev Builds:
 --------
 You can find official releases here:
@@ -70,5 +50,5 @@ License:
 
 MIT License, see LICENSE for more details.
 
-Thanks!
 
+Special thanks to all our [Contributors](https://github.com/MylesIsCool/ViaVersion/graphs/contributors)

bukkit/pom.xml

@@ -0,0 +1,64 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <parent>
+        <artifactId>viaversion-parent</artifactId>
+        <groupId>us.myles</groupId>
+        <version>1.0.2</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>viaversion-bukkit</artifactId>
+
+    <properties>
+        <!-- Change Bukkit Version HERE! -->
+        <bukkitVersion>1.8.8-R0.1-SNAPSHOT</bukkitVersion>
+    </properties>
+
+    <build>
+        <resources>
+            <resource>
+                <targetPath>.</targetPath>
+                <filtering>true</filtering>
+                <directory>src/main/resources/</directory>
+                <includes>
+                    <include>*</include>
+                </includes>
+            </resource>
+        </resources>
+    </build>
+
+    <dependencies>
+        <!-- Common Module -->
+        <dependency>
+            <groupId>us.myles</groupId>
+            <artifactId>viaversion-common</artifactId>
+            <version>${project.parent.version}</version>
+            <scope>provided</scope>
+        </dependency>
+
+        <!-- Bukkit API, http://www.spigotmc.org/ or http://bukkit.org/ -->
+        <dependency>
+            <groupId>org.bukkit</groupId>
+            <artifactId>bukkit</artifactId>
+            <version>${bukkitVersion}</version>
+            <scope>provided</scope>
+            <optional>true</optional>
+            <exclusions>
+                <exclusion>
+                    <artifactId>junit</artifactId>
+                    <groupId>junit</groupId>
+                </exclusion>
+                <exclusion>
+                    <artifactId>gson</artifactId>
+                    <groupId>com.google.code.gson</groupId>
+                </exclusion>
+                <exclusion>
+                    <artifactId>persistence-api</artifactId>
+                    <groupId>javax.persistence</groupId>
+                </exclusion>
+            </exclusions>
+        </dependency>
+    </dependencies>
+</project>

bukkit/src/main/java/us/myles/ViaVersion/ViaVersionPlugin.java

@@ -0,0 +1,256 @@
+package us.myles.ViaVersion;
+
+import com.google.gson.JsonObject;
+import lombok.Getter;
+import org.bukkit.Bukkit;
+import org.bukkit.ChatColor;
+import org.bukkit.entity.Player;
+import org.bukkit.plugin.Plugin;
+import org.bukkit.plugin.java.JavaPlugin;
+import us.myles.ViaVersion.api.Via;
+import us.myles.ViaVersion.api.ViaAPI;
+import us.myles.ViaVersion.api.ViaVersion;
+import us.myles.ViaVersion.api.command.ViaCommandSender;
+import us.myles.ViaVersion.api.configuration.ConfigurationProvider;
+import us.myles.ViaVersion.api.platform.TaskId;
+import us.myles.ViaVersion.api.platform.ViaPlatform;
+import us.myles.ViaVersion.bukkit.classgenerator.ClassGenerator;
+import us.myles.ViaVersion.bukkit.commands.BukkitCommandHandler;
+import us.myles.ViaVersion.bukkit.commands.BukkitCommandSender;
+import us.myles.ViaVersion.bukkit.platform.*;
+import us.myles.ViaVersion.bukkit.util.NMSUtil;
+import us.myles.ViaVersion.dump.PluginInfo;
+import us.myles.ViaVersion.util.GsonUtil;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.UUID;
+
+public class ViaVersionPlugin extends JavaPlugin implements ViaPlatform {
+
+    private BukkitCommandHandler commandHandler;
+    private boolean compatSpigotBuild = false;
+    private boolean spigot = true;
+    private boolean lateBind = false;
+    private boolean protocolSupport = false;
+    @Getter
+    private BukkitConfigAPI conf;
+    @Getter
+    private ViaAPI<Player> api = new BukkitViaAPI(this);
+    private List<Runnable> queuedTasks = new ArrayList<>();
+    private List<Runnable> asyncQueuedTasks = new ArrayList<>();
+
+    public ViaVersionPlugin() {
+        // Command handler
+        commandHandler = new BukkitCommandHandler();
+        // Init platform
+        Via.init(ViaManager.builder()
+                .platform(this)
+                .commandHandler(commandHandler)
+                .injector(new BukkitViaInjector())
+                .loader(new BukkitViaLoader(this))
+                .build());
+        // Config magic
+        conf = new BukkitConfigAPI();
+        // For compatibility
+        ViaVersion.setInstance(this);
+
+        // Check if we're using protocol support too
+        protocolSupport = Bukkit.getPluginManager().getPlugin("ProtocolSupport") != null;
+
+        if (protocolSupport) {
+            getLogger().info("Hooking into ProtocolSupport, to prevent issues!");
+            try {
+                BukkitViaInjector.patchLists();
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+        }
+    }
+
+    @Override
+    public void onLoad() {
+        // Spigot detector
+        try {
+            Class.forName("org.spigotmc.SpigotConfig");
+        } catch (ClassNotFoundException e) {
+            spigot = false;
+        }
+
+        // Check if it's a spigot build with a protocol mod
+        try {
+            compatSpigotBuild = NMSUtil.nms("PacketEncoder").getDeclaredField("version") != null;
+        } catch (Exception e) {
+            compatSpigotBuild = false;
+        }
+
+        // Generate classes needed (only works if it's compat or ps)
+        ClassGenerator.generate();
+        lateBind = !BukkitViaInjector.isBinded();
+
+        getLogger().info("ViaVersion " + getDescription().getVersion() + (compatSpigotBuild ? "compat" : "") + " is now loaded" + (lateBind ? ", waiting for boot. (late-bind)" : ", injecting!"));
+        if (!lateBind) {
+            Via.getManager().init();
+        }
+    }
+
+    @Override
+    public void onEnable() {
+        if (lateBind) {
+            Via.getManager().init();
+        }
+
+        getCommand("viaversion").setExecutor(commandHandler);
+        getCommand("viaversion").setTabCompleter(commandHandler);
+
+        // Warn them if they have anti-xray on and they aren't using spigot
+        if (conf.isAntiXRay() && !spigot) {
+            getLogger().info("You have anti-xray on in your config, since you're not using spigot it won't fix xray!");
+        }
+
+        // Run queued tasks
+        for (Runnable r : queuedTasks) {
+            Bukkit.getScheduler().runTask(this, r);
+        }
+        queuedTasks.clear();
+
+        // Run async queued tasks
+        for (Runnable r : asyncQueuedTasks) {
+            Bukkit.getScheduler().runTaskAsynchronously(this, r);
+        }
+        asyncQueuedTasks.clear();
+    }
+
+    @Override
+    public void onDisable() {
+        Via.getManager().destroy();
+    }
+
+    public boolean isCompatSpigotBuild() {
+        return compatSpigotBuild;
+    }
+
+
+    public boolean isSpigot() {
+        return this.spigot;
+    }
+
+    public boolean isProtocolSupport() {
+        return protocolSupport;
+    }
+
+    @Override
+    public String getPlatformName() {
+        return Bukkit.getServer().getName();
+    }
+
+    @Override
+    public String getPlatformVersion() {
+        return Bukkit.getServer().getVersion();
+    }
+
+    @Override
+    public String getPluginVersion() {
+        return getDescription().getVersion();
+    }
+
+    @Override
+    public TaskId runAsync(Runnable runnable) {
+        if (isPluginEnabled()) {
+            return new BukkitTaskId(getServer().getScheduler().runTaskAsynchronously(this, runnable).getTaskId());
+        } else {
+            asyncQueuedTasks.add(runnable);
+            return new BukkitTaskId(null);
+        }
+    }
+
+    @Override
+    public TaskId runSync(Runnable runnable) {
+        if (isPluginEnabled()) {
+            return new BukkitTaskId(getServer().getScheduler().runTask(this, runnable).getTaskId());
+        } else {
+            queuedTasks.add(runnable);
+            return new BukkitTaskId(null);
+        }
+    }
+
+    @Override
+    public TaskId runRepeatingSync(Runnable runnable, Long ticks) {
+        return new BukkitTaskId(getServer().getScheduler().runTaskTimer(this, runnable, ticks, 0).getTaskId());
+    }
+
+    @Override
+    public void cancelTask(TaskId taskId) {
+        if (taskId == null) return;
+        if (taskId.getObject() == null) return;
+        if (taskId instanceof BukkitTaskId) {
+            getServer().getScheduler().cancelTask((Integer) taskId.getObject());
+        }
+    }
+
+    @Override
+    public ViaCommandSender[] getOnlinePlayers() {
+        ViaCommandSender[] array = new ViaCommandSender[Bukkit.getOnlinePlayers().size()];
+        int i = 0;
+        for (Player player : Bukkit.getOnlinePlayers()) {
+            array[i++] = new BukkitCommandSender(player);
+        }
+        return array;
+    }
+
+    @Override
+    public void sendMessage(UUID uuid, String message) {
+        Player player = Bukkit.getPlayer(uuid);
+        if (player != null) {
+            player.sendMessage(message);
+        }
+    }
+
+    @Override
+    public boolean kickPlayer(UUID uuid, String message) {
+        Player player = Bukkit.getPlayer(uuid);
+        if (player != null) {
+            player.kickPlayer(message);
+            return true;
+        } else {
+            return false;
+        }
+    }
+
+    @Override
+    public boolean isPluginEnabled() {
+        return Bukkit.getPluginManager().getPlugin("ViaVersion").isEnabled();
+    }
+
+    @Override
+    public ConfigurationProvider getConfigurationProvider() {
+        return conf;
+    }
+
+    @Override
+    public void onReload() {
+        if (Bukkit.getPluginManager().getPlugin("ProtocolLib") != null) {
+            getLogger().severe("ViaVersion is already loaded, we're going to kick all the players... because otherwise we'll crash because of ProtocolLib.");
+            for (Player player : Bukkit.getOnlinePlayers()) {
+                player.kickPlayer(ChatColor.translateAlternateColorCodes('&', getConf().getReloadDisconnectMsg()));
+            }
+
+        } else {
+            getLogger().severe("ViaVersion is already loaded, this should work fine. If you get any console errors, try rebooting.");
+        }
+    }
+
+    @Override
+    public JsonObject getDump() {
+        JsonObject platformSpecific = new JsonObject();
+
+        List<PluginInfo> plugins = new ArrayList<>();
+        for (Plugin p : Bukkit.getPluginManager().getPlugins())
+            plugins.add(new PluginInfo(p.isEnabled(), p.getDescription().getName(), p.getDescription().getVersion(), p.getDescription().getMain(), p.getDescription().getAuthors()));
+
+        platformSpecific.add("plugins", GsonUtil.getGson().toJsonTree(plugins));
+        // TODO more? ProtocolLib things etc?
+
+        return platformSpecific;
+    }
+}

bukkit/src/main/java/us/myles/ViaVersion/api/ViaVersion.java

@@ -1,19 +1,19 @@
-package us.myles.ViaVersion.api;
-
-import lombok.Getter;
-import org.apache.commons.lang.Validate;
-import us.myles.ViaVersion.ViaVersionPlugin;
-
-public class ViaVersion {
-
-    @Getter
-    private static ViaVersionAPI instance;
-    @Getter
-    private static ViaVersionConfig config;
-
-    public static void setInstance(ViaVersionPlugin plugin) {
-        Validate.isTrue(instance == null, "Instance is already set");
-        ViaVersion.instance = plugin;
-        ViaVersion.config = plugin.getConf();
-    }
-}
+package us.myles.ViaVersion.api;
+
+import lombok.Getter;
+import org.apache.commons.lang.Validate;
+import us.myles.ViaVersion.ViaVersionPlugin;
+
+@Deprecated
+public class ViaVersion {
+    @Getter
+    private static ViaVersionAPI instance;
+    @Getter
+    private static ViaVersionConfig config;
+
+    public static void setInstance(ViaVersionPlugin plugin) {
+        Validate.isTrue(instance == null, "Instance is already set");
+        ViaVersion.instance = (ViaVersionAPI) plugin.getApi();
+        ViaVersion.config = plugin.getConf();
+    }
+}

bukkit/src/main/java/us/myles/ViaVersion/api/ViaVersionAPI.java

@@ -1,140 +1,144 @@
-package us.myles.ViaVersion.api;
-
-import io.netty.buffer.ByteBuf;
-import org.bukkit.entity.Player;
-import us.myles.ViaVersion.api.boss.BossBar;
-import us.myles.ViaVersion.api.boss.BossColor;
-import us.myles.ViaVersion.api.boss.BossStyle;
-import us.myles.ViaVersion.api.command.ViaVersionCommand;
-import us.myles.ViaVersion.api.protocol.ProtocolRegistry;
-
-import java.util.SortedSet;
-import java.util.UUID;
-
-public interface ViaVersionAPI {
-    /**
-     * Is the player connection modified by ViaVersion?
-     *
-     * @param player Bukkit player object
-     * @return True if the client is modified (At the moment it also means version 1.9 and higher)
-     */
-    boolean isPorted(Player player);
-
-    /**
-     * Get protocol number from a player
-     * Will also retrieve version from ProtocolSupport if it's being used.
-     *
-     * @param player Bukkit player object
-     * @return Protocol ID, For example (47=1.8-1.8.8, 107=1.9, 108=1.9.1)
-     */
-    int getPlayerVersion(Player player);
-
-    /**
-     * Get protocol number from a player
-     *
-     * @param uuid UUID of a player
-     * @return Protocol ID, For example (47=1.8-1.8.8, 107=1.9, 108=1.9.1)
-     */
-    int getPlayerVersion(UUID uuid);
-
-    /**
-     * Is player using 1.9?
-     *
-     * @param playerUUID UUID of a player
-     * @return True if the client is on 1.9
-     */
-    boolean isPorted(UUID playerUUID);
-
-    /**
-     * Get the version of the plugin
-     *
-     * @return Plugin version
-     */
-    String getVersion();
-
-    /**
-     * Send a raw packet to the player (Use new IDs)
-     *
-     * @param player The player to send packet
-     * @param packet The packet, you need a VarInt ID then the packet contents.
-     * @throws IllegalArgumentException If not on 1.9 throws IllegalArg
-     */
-    void sendRawPacket(Player player, ByteBuf packet) throws IllegalArgumentException;
-
-    /**
-     * Send a raw packet to the player (Use new IDs)
-     *
-     * @param uuid   The uuid from the player to send packet
-     * @param packet The packet, you need a VarInt ID then the packet contents.
-     * @throws IllegalArgumentException If not on 1.9 throws IllegalArg
-     */
-    void sendRawPacket(UUID uuid, ByteBuf packet) throws IllegalArgumentException;
-
-    /**
-     * Create a new bossbar instance
-     *
-     * @param title The title
-     * @param color The color
-     * @param style The style
-     * @return Bossbar instance
-     */
-    BossBar createBossBar(String title, BossColor color, BossStyle style);
-
-    /**
-     * Create a new bossbar instance
-     *
-     * @param title  The title
-     * @param health Number between 0 and 1
-     * @param color  The color
-     * @param style  The style
-     * @return Bossbar instance
-     */
-    BossBar createBossBar(String title, float health, BossColor color, BossStyle style);
-
-    /**
-     * Get if global debug is enabled
-     *
-     * @return true if debug is enabled
-     */
-    boolean isDebug();
-
-    /**
-     * Get ViaVersions command handler
-     *
-     * @return command handler
-     */
-    ViaVersionCommand getCommandHandler();
-
-    /**
-     * Get if this version is a compatibility build for spigot.
-     * Eg. 1.9.1 / 1.9.2 allow certain versions to connect
-     *
-     * @return True if it is
-     */
-    boolean isCompatSpigotBuild();
-
-    /**
-     * Get the supported protocol versions
-     * This method removes any blocked protocol versions.
-     * @see ProtocolRegistry#getSupportedVersions() for full list.
-     *
-     * @return a list of protocol versions
-     */
-    SortedSet<Integer> getSupportedVersions();
-
-    /**
-     * Gets if the server uses spigot
-     * <p>
-     * Note: Will only work after ViaVersion load
-     *
-     * @return True if spigot
-     */
-    boolean isSpigot();
-
-    /**
-     * Gets if protocol support is also being used.
-     *
-     * @return True if it is being used.
-     */
-    boolean isProtocolSupport();
-}
+package us.myles.ViaVersion.api;
+
+import io.netty.buffer.ByteBuf;
+import org.bukkit.entity.Player;
+import us.myles.ViaVersion.api.boss.BossBar;
+import us.myles.ViaVersion.api.boss.BossColor;
+import us.myles.ViaVersion.api.boss.BossStyle;
+import us.myles.ViaVersion.api.command.ViaVersionCommand;
+import us.myles.ViaVersion.api.protocol.ProtocolRegistry;
+
+import java.util.SortedSet;
+import java.util.UUID;
+
+@Deprecated
+public interface ViaVersionAPI extends ViaAPI<Player> {
+    /**
+     * Is the player connection modified by ViaVersion?
+     *
+     * @param player Bukkit player object
+     * @return True if the client is modified (At the moment it also means version 1.9 and higher)
+     * @deprecated As of 0.9.9, because all players are ported use {@link #getPlayerVersion(Player)}
+     */
+    boolean isPorted(Player player);
+
+    /**
+     * Get protocol number from a player
+     * Will also retrieve version from ProtocolSupport if it's being used.
+     *
+     * @param player Bukkit player object
+     * @return Protocol ID, For example (47=1.8-1.8.8, 107=1.9, 108=1.9.1)
+     */
+    int getPlayerVersion(Player player);
+
+    /**
+     * Get protocol number from a player
+     *
+     * @param uuid UUID of a player
+     * @return Protocol ID, For example (47=1.8-1.8.8, 107=1.9, 108=1.9.1)
+     */
+    int getPlayerVersion(UUID uuid);
+
+    /**
+     * Is player using 1.9?
+     *
+     * @param playerUUID UUID of a player
+     * @return True if the client is on 1.9
+     * @deprecated As of 0.9.9, because all players are ported use {@link #getPlayerVersion(UUID)}
+     */
+    @Deprecated
+    boolean isPorted(UUID playerUUID);
+
+    /**
+     * Get the version of the plugin
+     *
+     * @return Plugin version
+     */
+    String getVersion();
+
+    /**
+     * Send a raw packet to the player (Use new IDs)
+     *
+     * @param player The player to send packet
+     * @param packet The packet, you need a VarInt ID then the packet contents.
+     * @throws IllegalArgumentException If not on 1.9 throws IllegalArg
+     */
+    void sendRawPacket(Player player, ByteBuf packet) throws IllegalArgumentException;
+
+    /**
+     * Send a raw packet to the player (Use new IDs)
+     *
+     * @param uuid   The uuid from the player to send packet
+     * @param packet The packet, you need a VarInt ID then the packet contents.
+     * @throws IllegalArgumentException If not on 1.9 throws IllegalArg
+     */
+    void sendRawPacket(UUID uuid, ByteBuf packet) throws IllegalArgumentException;
+
+    /**
+     * Create a new bossbar instance
+     *
+     * @param title The title
+     * @param color The color
+     * @param style The style
+     * @return BossBar instance
+     */
+    BossBar createBossBar(String title, BossColor color, BossStyle style);
+
+    /**
+     * Create a new bossbar instance
+     *
+     * @param title  The title
+     * @param health Number between 0 and 1
+     * @param color  The color
+     * @param style  The style
+     * @return BossBar instance
+     */
+    BossBar createBossBar(String title, float health, BossColor color, BossStyle style);
+
+    /**
+     * Get if global debug is enabled
+     *
+     * @return true if debug is enabled
+     */
+    boolean isDebug();
+
+    /**
+     * Get ViaVersions commands handler
+     *
+     * @return commands handler
+     */
+    ViaVersionCommand getCommandHandler();
+
+    /**
+     * Get if this version is a compatibility build for spigot.
+     * Eg. 1.9.1 / 1.9.2 allow certain versions to connect
+     *
+     * @return True if it is
+     */
+    boolean isCompatSpigotBuild();
+
+    /**
+     * Get the supported protocol versions
+     * This method removes any blocked protocol versions.
+     *
+     * @return a list of protocol versions
+     * @see ProtocolRegistry#getSupportedVersions() for full list.
+     */
+    SortedSet<Integer> getSupportedVersions();
+
+    /**
+     * Gets if the server uses spigot
+     * <p>
+     * Note: Will only work after ViaVersion load
+     *
+     * @return True if spigot
+     */
+    boolean isSpigot();
+
+    /**
+     * Gets if protocol support is also being used.
+     *
+     * @return True if it is being used.
+     */
+    boolean isProtocolSupport();
+}

bukkit/src/main/java/us/myles/ViaVersion/boss/ViaBossBar.java

@@ -0,0 +1,34 @@
+package us.myles.ViaVersion.boss;
+
+import lombok.Getter;
+import org.bukkit.entity.Player;
+import us.myles.ViaVersion.api.boss.BossBar;
+import us.myles.ViaVersion.api.boss.BossColor;
+import us.myles.ViaVersion.api.boss.BossStyle;
+
+@Getter
+public class ViaBossBar extends CommonBoss<Player> {
+
+    public ViaBossBar(String title, float health, BossColor color, BossStyle style) {
+        super(title, health, color, style);
+    }
+
+    @Override
+    public BossBar addPlayer(Player player) {
+        addPlayer(player.getUniqueId());
+        return this;
+    }
+
+    @Override
+    public BossBar addPlayers(Player... players) {
+        for (Player p : players)
+            addPlayer(p);
+        return this;
+    }
+
+    @Override
+    public BossBar removePlayer(Player player) {
+        removePlayer(player.getUniqueId());
+        return this;
+    }
+}

bukkit/src/main/java/us/myles/ViaVersion/bukkit/classgenerator/BasicHandlerConstructor.java

@@ -0,0 +1,19 @@
+package us.myles.ViaVersion.bukkit.classgenerator;
+
+import io.netty.handler.codec.ByteToMessageDecoder;
+import io.netty.handler.codec.MessageToByteEncoder;
+import us.myles.ViaVersion.api.data.UserConnection;
+import us.myles.ViaVersion.bukkit.handlers.BukkitDecodeHandler;
+import us.myles.ViaVersion.bukkit.handlers.BukkitEncodeHandler;
+
+public class BasicHandlerConstructor implements HandlerConstructor {
+    @Override
+    public BukkitEncodeHandler newEncodeHandler(UserConnection info, MessageToByteEncoder minecraftEncoder) {
+        return new BukkitEncodeHandler(info, minecraftEncoder);
+    }
+
+    @Override
+    public BukkitDecodeHandler newDecodeHandler(UserConnection info, ByteToMessageDecoder minecraftDecoder) {
+        return new BukkitDecodeHandler(info, minecraftDecoder);
+    }
+}

bukkit/src/main/java/us/myles/ViaVersion/bukkit/classgenerator/ClassGenerator.java

@@ -1,4 +1,4 @@
-package us.myles.ViaVersion.classgenerator;
+package us.myles.ViaVersion.bukkit.classgenerator;
 
 import javassist.*;
 import javassist.expr.ConstructorCall;
@@ -6,9 +6,9 @@ import javassist.expr.ExprEditor;
 import org.bukkit.Bukkit;
 import org.bukkit.plugin.Plugin;
 import us.myles.ViaVersion.api.ViaVersion;
-import us.myles.ViaVersion.handlers.ViaDecodeHandler;
-import us.myles.ViaVersion.handlers.ViaEncodeHandler;
-import us.myles.ViaVersion.util.ReflectionUtil;
+import us.myles.ViaVersion.bukkit.handlers.BukkitDecodeHandler;
+import us.myles.ViaVersion.bukkit.handlers.BukkitEncodeHandler;
+import us.myles.ViaVersion.bukkit.util.NMSUtil;
 
 public class ClassGenerator {
     private static HandlerConstructor constructor = new BasicHandlerConstructor();
@@ -27,17 +27,17 @@ public class ClassGenerator {
                 }
 
                 if (ViaVersion.getInstance().isCompatSpigotBuild()) {
-                    Class decodeSuper = ReflectionUtil.nms("PacketDecoder");
-                    Class encodeSuper = ReflectionUtil.nms("PacketEncoder");
+                    Class decodeSuper = NMSUtil.nms("PacketDecoder");
+                    Class encodeSuper = NMSUtil.nms("PacketEncoder");
                     // Generate the classes
-                    addSpigotCompatibility(pool, ViaDecodeHandler.class, decodeSuper);
-                    addSpigotCompatibility(pool, ViaEncodeHandler.class, encodeSuper);
+                    addSpigotCompatibility(pool, BukkitDecodeHandler.class, decodeSuper);
+                    addSpigotCompatibility(pool, BukkitEncodeHandler.class, encodeSuper);
                 } else {
-                    Class decodeSuper = Class.forName(getPSPackage() + ".wrapped.WrappedDecoder");
-                    Class encodeSuper = Class.forName(getPSPackage() + ".wrapped.WrappedEncoder");
+                    Class decodeSuper = Class.forName(getPSPackage().equals("unknown") ? "protocolsupport.protocol.pipeline.common.PacketDecoder" : getPSPackage() + ".wrapped.WrappedDecoder");
+                    Class encodeSuper = Class.forName(getPSPackage().equals("unknown") ? "protocolsupport.protocol.pipeline.common.PacketEncoder" : getPSPackage() + ".wrapped.WrappedEncoder");
                     // Generate the classes
-                    addPSCompatibility(pool, ViaDecodeHandler.class, decodeSuper);
-                    addPSCompatibility(pool, ViaEncodeHandler.class, encodeSuper);
+                    addPSCompatibility(pool, BukkitDecodeHandler.class, decodeSuper);
+                    addPSCompatibility(pool, BukkitEncodeHandler.class, encodeSuper);
                 }
 
 
@@ -53,10 +53,10 @@ public class ClassGenerator {
                 pool.importPackage("io.netty.handler.codec");
                 // Implement Methods
                 generated.addMethod(CtMethod.make("public MessageToByteEncoder newEncodeHandler(UserConnection info, MessageToByteEncoder minecraftEncoder) {\n" +
-                        "        return new ViaEncodeHandler(info, minecraftEncoder);\n" +
+                        "        return new BukkitEncodeHandler(info, minecraftEncoder);\n" +
                         "    }", generated));
                 generated.addMethod(CtMethod.make("public ByteToMessageDecoder newDecodeHandler(UserConnection info, ByteToMessageDecoder minecraftDecoder) {\n" +
-                        "        return new ViaDecodeHandler(info, minecraftDecoder);\n" +
+                        "        return new BukkitDecodeHandler(info, minecraftDecoder);\n" +
                         "    }", generated));
 
                 constructor = (HandlerConstructor) generated.toClass(HandlerConstructor.class.getClassLoader()).newInstance();
@@ -110,6 +110,7 @@ public class ClassGenerator {
     }
 
     private static Class addPSCompatibility(ClassPool pool, Class input, Class superclass) {
+        boolean newPS = getPSPackage().equals("unknown");
         String newName = "us.myles.ViaVersion.classgenerator.generated." + input.getSimpleName();
 
         try {
@@ -118,23 +119,34 @@ public class ClassGenerator {
                 CtClass toExtend = pool.get(superclass.getName());
                 generated.setSuperclass(toExtend);
 
-                // Override setRealEncoder / setRealDecoder
-                pool.importPackage(getPSPackage());
-                pool.importPackage(getPSPackage() + ".wrapped");
-                if (superclass.getName().endsWith("Decoder")) {
-                    // Decoder
-                    generated.addMethod(CtMethod.make("public void setRealDecoder(IPacketDecoder dec) {\n" +
-                            "        WrappedDecoder decoder = new WrappedDecoder();" +
-                            "        decoder.setRealDecoder(dec);\n" +
-                            "        this.minecraftDecoder = decoder;\n" +
-                            "    }", generated));
-                } else {
-                    // Encoder
-                    generated.addMethod(CtMethod.make("public void setRealEncoder(IPacketEncoder enc) {\n" +
-                            "        WrappedEncoder encoder = new WrappedEncoder();" +
-                            "        encoder.setRealEncoder(enc);\n" +
-                            "        this.minecraftEncoder = encoder;\n" +
-                            "    }", generated));
+                if (!newPS) {
+                    // Override setRealEncoder / setRealDecoder
+                    pool.importPackage(getPSPackage());
+                    pool.importPackage(getPSPackage() + ".wrapped");
+                    if (superclass.getName().endsWith("Decoder")) {
+                        // Decoder
+                        generated.addMethod(CtMethod.make("public void setRealDecoder(IPacketDecoder dec) {\n" +
+                                "        ((WrappedDecoder) this.minecraftDecoder).setRealDecoder(dec);\n" +
+                                "    }", generated));
+                    } else {
+                        // Encoder
+                        pool.importPackage("protocolsupport.api");
+                        pool.importPackage("java.lang.reflect");
+                        generated.addMethod(CtMethod.make("public void setRealEncoder(IPacketEncoder enc) {\n" +
+                                "         try {\n" +
+                                // Tell ProtocolSupport to decode MINECRAFT_FUTURE packets using the default decoder (for 1.9.4)
+                                "             Field field = enc.getClass().getDeclaredField(\"version\");\n" +
+                                "             field.setAccessible(true);\n" +
+                                "             ProtocolVersion version = (ProtocolVersion) field.get(enc);\n" +
+
+                                "             if (version == ProtocolVersion.MINECRAFT_FUTURE) enc = enc.getClass().getConstructor(\n" +
+                                "                 new Class[]{ProtocolVersion.class}).newInstance(new Object[] {ProtocolVersion.getLatest()});\n" +
+                                "         } catch (Exception e) {\n" +
+                                // I guess we're not on 1.9.4
+                                "         }\n" +
+                                "        ((WrappedEncoder) this.minecraftEncoder).setRealEncoder(enc);\n" +
+                                "    }", generated));
+                    }
                 }
             }
             return generated.toClass(HandlerConstructor.class.getClassLoader());

bukkit/src/main/java/us/myles/ViaVersion/bukkit/classgenerator/HandlerConstructor.java

@@ -1,4 +1,4 @@
-package us.myles.ViaVersion.classgenerator;
+package us.myles.ViaVersion.bukkit.classgenerator;
 
 import io.netty.handler.codec.ByteToMessageDecoder;
 import io.netty.handler.codec.MessageToByteEncoder;

bukkit/src/main/java/us/myles/ViaVersion/bukkit/commands/BukkitCommandHandler.java

@@ -0,0 +1,21 @@
+package us.myles.ViaVersion.bukkit.commands;
+
+import org.bukkit.command.Command;
+import org.bukkit.command.CommandExecutor;
+import org.bukkit.command.CommandSender;
+import org.bukkit.command.TabExecutor;
+import us.myles.ViaVersion.commands.ViaCommandHandler;
+
+import java.util.List;
+
+public class BukkitCommandHandler extends ViaCommandHandler implements CommandExecutor, TabExecutor {
+    @Override
+    public boolean onCommand(CommandSender sender, Command command, String label, String[] args) {
+        return onCommand(new BukkitCommandSender(sender), args);
+    }
+
+    @Override
+    public List<String> onTabComplete(CommandSender sender, Command command, String alias, String[] args) {
+        return onTabComplete(new BukkitCommandSender(sender), args);
+    }
+}

bukkit/src/main/java/us/myles/ViaVersion/bukkit/commands/BukkitCommandSender.java

@@ -0,0 +1,37 @@
+package us.myles.ViaVersion.bukkit.commands;
+
+import lombok.AllArgsConstructor;
+import org.bukkit.command.CommandSender;
+import org.bukkit.entity.Player;
+import us.myles.ViaVersion.api.command.ViaCommandSender;
+
+import java.util.UUID;
+
+@AllArgsConstructor
+public class BukkitCommandSender implements ViaCommandSender {
+    private CommandSender sender;
+
+    @Override
+    public boolean hasPermission(String permission) {
+        return sender.hasPermission(permission);
+    }
+
+    @Override
+    public void sendMessage(String msg) {
+        sender.sendMessage(msg);
+    }
+
+    @Override
+    public UUID getUUID() {
+        if (sender instanceof Player) {
+            return ((Player) sender).getUniqueId();
+        } else {
+            return UUID.fromString(getName());
+        }
+    }
+
+    @Override
+    public String getName() {
+        return sender.getName();
+    }
+}

bukkit/src/main/java/us/myles/ViaVersion/bukkit/handlers/BukkitChannelInitializer.java

@@ -1,4 +1,4 @@
-package us.myles.ViaVersion.handlers;
+package us.myles.ViaVersion.bukkit.handlers;
 
 import io.netty.channel.Channel;
 import io.netty.channel.ChannelInitializer;
@@ -7,17 +7,17 @@ import io.netty.handler.codec.ByteToMessageDecoder;
 import io.netty.handler.codec.MessageToByteEncoder;
 import us.myles.ViaVersion.api.data.UserConnection;
 import us.myles.ViaVersion.api.protocol.ProtocolPipeline;
-import us.myles.ViaVersion.classgenerator.ClassGenerator;
-import us.myles.ViaVersion.classgenerator.HandlerConstructor;
+import us.myles.ViaVersion.bukkit.classgenerator.ClassGenerator;
+import us.myles.ViaVersion.bukkit.classgenerator.HandlerConstructor;
 
 import java.lang.reflect.Method;
 
-public class ViaVersionInitializer extends ChannelInitializer<SocketChannel> {
+public class BukkitChannelInitializer extends ChannelInitializer<SocketChannel> {
 
     private final ChannelInitializer<SocketChannel> original;
     private Method method;
 
-    public ViaVersionInitializer(ChannelInitializer<SocketChannel> oldInit) {
+    public BukkitChannelInitializer(ChannelInitializer<SocketChannel> oldInit) {
         this.original = oldInit;
         try {
             this.method = ChannelInitializer.class.getDeclaredMethod("initChannel", Channel.class);
@@ -43,7 +43,7 @@ public class ViaVersionInitializer extends ChannelInitializer<SocketChannel> {
         // Add our transformers
         MessageToByteEncoder encoder = constructor.newEncodeHandler(info, (MessageToByteEncoder) socketChannel.pipeline().get("encoder"));
         ByteToMessageDecoder decoder = constructor.newDecodeHandler(info, (ByteToMessageDecoder) socketChannel.pipeline().get("decoder"));
-        ViaPacketHandler chunkHandler = new ViaPacketHandler(info);
+        BukkitPacketHandler chunkHandler = new BukkitPacketHandler(info);
 
         socketChannel.pipeline().replace("encoder", "encoder", encoder);
         socketChannel.pipeline().replace("decoder", "decoder", decoder);

bukkit/src/main/java/us/myles/ViaVersion/bukkit/handlers/BukkitDecodeHandler.java

@@ -1,11 +1,9 @@
-package us.myles.ViaVersion.handlers;
+package us.myles.ViaVersion.bukkit.handlers;
 
 import io.netty.buffer.ByteBuf;
 import io.netty.channel.ChannelHandlerContext;
 import io.netty.handler.codec.ByteToMessageDecoder;
-import us.myles.ViaVersion.ViaVersionPlugin;
 import us.myles.ViaVersion.api.PacketWrapper;
-import us.myles.ViaVersion.api.ViaVersion;
 import us.myles.ViaVersion.api.data.UserConnection;
 import us.myles.ViaVersion.api.type.Type;
 import us.myles.ViaVersion.exception.CancelException;
@@ -16,13 +14,12 @@ import us.myles.ViaVersion.util.PipelineUtil;
 import java.lang.reflect.InvocationTargetException;
 import java.util.List;
 
-public class ViaDecodeHandler extends ByteToMessageDecoder {
+public class BukkitDecodeHandler extends ByteToMessageDecoder {
 
     private final ByteToMessageDecoder minecraftDecoder;
     private final UserConnection info;
-    public static int PASSTHROUGH_ID = 1000;
 
-    public ViaDecodeHandler(UserConnection info, ByteToMessageDecoder minecraftDecoder) {
+    public BukkitDecodeHandler(UserConnection info, ByteToMessageDecoder minecraftDecoder) {
         this.info = info;
         this.minecraftDecoder = minecraftDecoder;
     }
@@ -39,7 +36,7 @@ public class ViaDecodeHandler extends ByteToMessageDecoder {
             boolean second = info.incrementReceived();
             // Check PPS
             if (second) {
-                if (((ViaVersionPlugin) ViaVersion.getInstance()).handlePPS(info))
+                if (info.handlePPS())
                     return;
             }
 
@@ -49,7 +46,7 @@ public class ViaDecodeHandler extends ByteToMessageDecoder {
                 // Transform
                 ByteBuf newPacket = ctx.alloc().buffer();
                 try {
-                    if (id == ViaDecodeHandler.PASSTHROUGH_ID) {
+                    if (id == PacketWrapper.PASSTHROUGH_ID) {
                         newPacket.writeBytes(bytebuf);
                     } else {
                         PacketWrapper wrapper = new PacketWrapper(id, bytebuf, info);

bukkit/src/main/java/us/myles/ViaVersion/bukkit/handlers/BukkitEncodeHandler.java

@@ -0,0 +1,93 @@
+package us.myles.ViaVersion.bukkit.handlers;
+
+import io.netty.buffer.ByteBuf;
+import io.netty.channel.ChannelHandlerContext;
+import io.netty.handler.codec.MessageToByteEncoder;
+import us.myles.ViaVersion.api.PacketWrapper;
+import us.myles.ViaVersion.api.data.UserConnection;
+import us.myles.ViaVersion.api.type.Type;
+import us.myles.ViaVersion.bukkit.util.NMSUtil;
+import us.myles.ViaVersion.exception.CancelException;
+import us.myles.ViaVersion.handlers.ChannelHandlerContextWrapper;
+import us.myles.ViaVersion.handlers.ViaHandler;
+import us.myles.ViaVersion.packets.Direction;
+import us.myles.ViaVersion.protocols.base.ProtocolInfo;
+import us.myles.ViaVersion.util.PipelineUtil;
+
+import java.lang.reflect.Field;
+import java.lang.reflect.InvocationTargetException;
+
+public class BukkitEncodeHandler extends MessageToByteEncoder implements ViaHandler {
+    private static Field versionField = null;
+
+    static {
+        try {
+            versionField = NMSUtil.nms("PacketEncoder").getDeclaredField("version");
+            versionField.setAccessible(true);
+        } catch (Exception e) {
+            // Not compat version
+        }
+    }
+
+    private final UserConnection info;
+    private final MessageToByteEncoder minecraftEncoder;
+
+    public BukkitEncodeHandler(UserConnection info, MessageToByteEncoder minecraftEncoder) {
+        this.info = info;
+        this.minecraftEncoder = minecraftEncoder;
+    }
+
+
+    @Override
+    protected void encode(final ChannelHandlerContext ctx, Object o, final ByteBuf bytebuf) throws Exception {
+        if (versionField != null) {
+            versionField.set(minecraftEncoder, versionField.get(this));
+        }
+        // handle the packet type
+        if (!(o instanceof ByteBuf)) {
+            // call minecraft encoder
+            try {
+                PipelineUtil.callEncode(this.minecraftEncoder, new ChannelHandlerContextWrapper(ctx, this), o, bytebuf);
+            } catch (InvocationTargetException e) {
+                if (e.getCause() instanceof Exception) {
+                    throw (Exception) e.getCause();
+                }
+            }
+        }
+
+        transform(bytebuf);
+    }
+
+    public void transform(ByteBuf bytebuf) throws Exception {
+        if (bytebuf.readableBytes() == 0) {
+            return; // Someone Already Decoded It!
+        }
+        // Increment sent
+        info.incrementSent();
+        if (info.isActive()) {
+            // Handle ID
+            int id = Type.VAR_INT.read(bytebuf);
+            // Transform
+            ByteBuf oldPacket = bytebuf.copy();
+            bytebuf.clear();
+
+            try {
+                PacketWrapper wrapper = new PacketWrapper(id, oldPacket, info);
+                ProtocolInfo protInfo = info.get(ProtocolInfo.class);
+                protInfo.getPipeline().transform(Direction.OUTGOING, protInfo.getState(), wrapper);
+                wrapper.writeToBuffer(bytebuf);
+            } catch (Exception e) {
+                bytebuf.clear();
+                throw e;
+            } finally {
+                oldPacket.release();
+            }
+        }
+    }
+
+    @Override
+    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
+        if (PipelineUtil.containsCause(cause, CancelException.class)) return;
+        super.exceptionCaught(ctx, cause);
+    }
+}

bukkit/src/main/java/us/myles/ViaVersion/bukkit/handlers/BukkitPacketHandler.java

@@ -1,4 +1,4 @@
-package us.myles.ViaVersion.handlers;
+package us.myles.ViaVersion.bukkit.handlers;
 
 import io.netty.buffer.ByteBuf;
 import io.netty.channel.ChannelHandlerContext;
@@ -8,10 +8,10 @@ import us.myles.ViaVersion.protocols.base.ProtocolInfo;
 
 import java.util.List;
 
-public class ViaPacketHandler extends MessageToMessageEncoder {
+public class BukkitPacketHandler extends MessageToMessageEncoder {
     private final UserConnection info;
 
-    public ViaPacketHandler(UserConnection info) {
+    public BukkitPacketHandler(UserConnection info) {
         this.info = info;
     }
 

bukkit/src/main/java/us/myles/ViaVersion/bukkit/listeners/UpdateListener.java

@@ -1,23 +1,18 @@
-package us.myles.ViaVersion.update;
-
-import lombok.RequiredArgsConstructor;
-import org.bukkit.event.EventHandler;
-import org.bukkit.event.Listener;
-import org.bukkit.event.player.PlayerJoinEvent;
-import us.myles.ViaVersion.ViaVersionPlugin;
-import us.myles.ViaVersion.api.ViaVersion;
-
-@RequiredArgsConstructor
-public class UpdateListener implements Listener {
-
-    private final ViaVersionPlugin plugin;
-
-    @EventHandler
-    public void onJoin(PlayerJoinEvent e) {
-        if (e.getPlayer().hasPermission("viaversion.update")
-                && ViaVersion.getConfig().isCheckForUpdates()) {
-            UpdateUtil.sendUpdateMessage(e.getPlayer().getUniqueId(), plugin);
-        }
-    }
-
-}
+package us.myles.ViaVersion.bukkit.listeners;
+
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.event.player.PlayerJoinEvent;
+import us.myles.ViaVersion.api.Via;
+import us.myles.ViaVersion.update.UpdateUtil;
+
+public class UpdateListener implements Listener {
+
+    @EventHandler
+    public void onJoin(PlayerJoinEvent e) {
+        if (e.getPlayer().hasPermission("viaversion.update")
+                && Via.getConfig().isCheckForUpdates()) {
+            UpdateUtil.sendUpdateMessage(e.getPlayer().getUniqueId());
+        }
+    }
+}

bukkit/src/main/java/us/myles/ViaVersion/bukkit/listeners/ViaBukkitListener.java

@@ -0,0 +1,53 @@
+package us.myles.ViaVersion.bukkit.listeners;
+
+import lombok.AccessLevel;
+import lombok.Getter;
+import lombok.NonNull;
+import org.bukkit.entity.Player;
+import org.bukkit.event.Listener;
+import org.bukkit.plugin.Plugin;
+import us.myles.ViaVersion.ViaVersionPlugin;
+import us.myles.ViaVersion.api.ViaListener;
+import us.myles.ViaVersion.api.data.UserConnection;
+import us.myles.ViaVersion.api.protocol.Protocol;
+
+@Getter(AccessLevel.PROTECTED)
+public class ViaBukkitListener extends ViaListener implements Listener {
+    private final Plugin plugin;
+
+    public ViaBukkitListener(ViaVersionPlugin plugin, Class<? extends Protocol> requiredPipeline) {
+        super(requiredPipeline);
+        this.plugin = plugin;
+    }
+
+    /**
+     * Get the UserConnection from a player
+     *
+     * @param player Player object
+     * @return The UserConnection
+     */
+    protected UserConnection getUserConnection(@NonNull Player player) {
+        return getUserConnection(player.getUniqueId());
+    }
+
+    /**
+     * Checks if the player is on the selected pipe
+     *
+     * @param player Player Object
+     * @return True if on pipe
+     */
+    protected boolean isOnPipe(Player player) {
+        return isOnPipe(player.getUniqueId());
+    }
+
+    /**
+     * Register as Bukkit event
+     */
+    @Override
+    public void register() {
+        if (isRegistered()) return;
+
+        plugin.getServer().getPluginManager().registerEvents(this, plugin);
+        setRegistered(true);
+    }
+}

bukkit/src/main/java/us/myles/ViaVersion/bukkit/listeners/protocol1_9to1_8/ArmorListener.java

@@ -1,12 +1,10 @@
-package us.myles.ViaVersion.protocols.protocol1_9to1_8.listeners;
+package us.myles.ViaVersion.bukkit.listeners.protocol1_9to1_8;
 
-import lombok.RequiredArgsConstructor;
 import org.bukkit.Bukkit;
 import org.bukkit.entity.HumanEntity;
 import org.bukkit.entity.Player;
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.EventPriority;
-import org.bukkit.event.Listener;
 import org.bukkit.event.block.Action;
 import org.bukkit.event.inventory.InventoryClickEvent;
 import org.bukkit.event.player.PlayerChangedWorldEvent;
@@ -14,32 +12,36 @@ import org.bukkit.event.player.PlayerInteractEvent;
 import org.bukkit.event.player.PlayerJoinEvent;
 import org.bukkit.event.player.PlayerRespawnEvent;
 import org.bukkit.inventory.CraftingInventory;
+import org.bukkit.inventory.ItemStack;
 import us.myles.ViaVersion.ViaVersionPlugin;
 import us.myles.ViaVersion.api.PacketWrapper;
-import us.myles.ViaVersion.api.ViaVersion;
-import us.myles.ViaVersion.api.data.UserConnection;
+import us.myles.ViaVersion.api.Via;
 import us.myles.ViaVersion.api.type.Type;
-import us.myles.ViaVersion.protocols.base.ProtocolInfo;
+import us.myles.ViaVersion.bukkit.listeners.ViaBukkitListener;
 import us.myles.ViaVersion.protocols.protocol1_9to1_8.ArmorType;
 import us.myles.ViaVersion.protocols.protocol1_9to1_8.Protocol1_9TO1_8;
 
 import java.util.UUID;
 
-@RequiredArgsConstructor
-public class ArmorListener implements Listener {
+public class ArmorListener extends ViaBukkitListener {
 
     private static final UUID ARMOR_ATTRIBUTE = UUID.fromString("2AD3F246-FEE1-4E67-B886-69FD380BB150");
-    private final ViaVersionPlugin plugin;
 
-    public static void sendArmorUpdate(Player player) {
+    public ArmorListener(ViaVersionPlugin plugin) {
+        super(plugin, Protocol1_9TO1_8.class);
+    }
+
+    public void sendArmorUpdate(Player player) {
         // Ensure that the player is on our pipe
-        UserConnection userConnection = ((ViaVersionPlugin) ViaVersion.getInstance()).getConnection(player);
-        if (userConnection == null) return;
-        if (!userConnection.get(ProtocolInfo.class).getPipeline().contains(Protocol1_9TO1_8.class)) return;
+        if (!isOnPipe(player)) return;
 
-        int armor = ArmorType.calculateArmorPoints(player.getInventory().getArmorContents());
 
-        PacketWrapper wrapper = new PacketWrapper(0x4B, null, userConnection);
+        int armor = 0;
+        for (ItemStack stack : player.getInventory().getArmorContents()) {
+            armor += ArmorType.findById(stack.getTypeId()).getArmorPoints();
+        }
+
+        PacketWrapper wrapper = new PacketWrapper(0x4B, null, getUserConnection(player));
         try {
             wrapper.write(Type.VAR_INT, player.getEntityId()); // Player ID
             wrapper.write(Type.INT, 1); // only 1 property
@@ -61,17 +63,15 @@ public class ArmorListener implements Listener {
         HumanEntity human = e.getWhoClicked();
         if (human instanceof Player && e.getInventory() instanceof CraftingInventory) {
             final Player player = (Player) human;
-            if (ViaVersion.getInstance().isPorted(player)) {
-                if (e.getCurrentItem() != null) {
-                    if (ArmorType.isArmor(e.getCurrentItem().getType())) {
-                        sendDelayedArmorUpdate(player);
-                        return;
-                    }
-                }
-                if (e.getRawSlot() >= 5 && e.getRawSlot() <= 8) {
+            if (e.getCurrentItem() != null) {
+                if (ArmorType.isArmor(e.getCurrentItem().getTypeId())) {
                     sendDelayedArmorUpdate(player);
+                    return;
                 }
             }
+            if (e.getRawSlot() >= 5 && e.getRawSlot() <= 8) {
+                sendDelayedArmorUpdate(player);
+            }
         }
     }
 
@@ -81,12 +81,10 @@ public class ArmorListener implements Listener {
             if (e.getAction() == Action.RIGHT_CLICK_AIR || e.getAction() == Action.RIGHT_CLICK_BLOCK) {
                 final Player player = e.getPlayer();
                 // Due to odd bugs it's 3 ticks later
-                Bukkit.getScheduler().scheduleSyncDelayedTask(plugin, new Runnable() {
+                Bukkit.getScheduler().scheduleSyncDelayedTask(getPlugin(), new Runnable() {
                     @Override
                     public void run() {
-                        if (ViaVersion.getInstance().isPorted(player)) {
-                            sendArmorUpdate(player);
-                        }
+                        sendArmorUpdate(player);
                     }
                 }, 3L);
             }
@@ -100,23 +98,20 @@ public class ArmorListener implements Listener {
 
     @EventHandler(priority = EventPriority.MONITOR, ignoreCancelled = true)
     public void onRespawn(PlayerRespawnEvent e) {
-        if (ViaVersion.getInstance().isPorted(e.getPlayer()))
-            sendDelayedArmorUpdate(e.getPlayer());
+        sendDelayedArmorUpdate(e.getPlayer());
     }
 
     @EventHandler(priority = EventPriority.MONITOR, ignoreCancelled = true)
     public void onWorldChange(PlayerChangedWorldEvent e) {
-        if (ViaVersion.getInstance().isPorted(e.getPlayer()))
-            sendArmorUpdate(e.getPlayer());
+        sendArmorUpdate(e.getPlayer());
     }
 
     public void sendDelayedArmorUpdate(final Player player) {
-        Bukkit.getScheduler().scheduleSyncDelayedTask(plugin, new Runnable() {
+        if (!isOnPipe(player)) return; // Don't start a task if the player is not on the pipe
+        Via.getPlatform().runSync(new Runnable() {
             @Override
             public void run() {
-                if (ViaVersion.getInstance().isPorted(player)) {
-                    sendArmorUpdate(player);
-                }
+                sendArmorUpdate(player);
             }
         });
     }

bukkit/src/main/java/us/myles/ViaVersion/bukkit/listeners/protocol1_9to1_8/BlockListener.java

@@ -0,0 +1,28 @@
+package us.myles.ViaVersion.bukkit.listeners.protocol1_9to1_8;
+
+import org.bukkit.block.Block;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.EventPriority;
+import org.bukkit.event.block.BlockPlaceEvent;
+import us.myles.ViaVersion.ViaVersionPlugin;
+import us.myles.ViaVersion.api.minecraft.Position;
+import us.myles.ViaVersion.bukkit.listeners.ViaBukkitListener;
+import us.myles.ViaVersion.protocols.protocol1_9to1_8.Protocol1_9TO1_8;
+import us.myles.ViaVersion.protocols.protocol1_9to1_8.storage.EntityTracker;
+
+public class BlockListener extends ViaBukkitListener {
+
+    public BlockListener(ViaVersionPlugin plugin) {
+        super(plugin, Protocol1_9TO1_8.class);
+    }
+
+    @EventHandler(priority = EventPriority.MONITOR, ignoreCancelled = true)
+    public void placeBlock(BlockPlaceEvent e) {
+        if (isOnPipe(e.getPlayer())) {
+            Block b = e.getBlockPlaced();
+            getUserConnection(e.getPlayer())
+                    .get(EntityTracker.class)
+                    .addBlockInteraction(new Position((long) b.getX(), (long) b.getY(), (long) b.getZ()));
+        }
+    }
+}

bukkit/src/main/java/us/myles/ViaVersion/bukkit/listeners/protocol1_9to1_8/DeathListener.java

@@ -1,40 +1,28 @@
-package us.myles.ViaVersion.protocols.protocol1_9to1_8.listeners;
+package us.myles.ViaVersion.bukkit.listeners.protocol1_9to1_8;
 
-import lombok.RequiredArgsConstructor;
-import org.bukkit.Bukkit;
 import org.bukkit.World;
 import org.bukkit.entity.Player;
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.EventPriority;
-import org.bukkit.event.Listener;
 import org.bukkit.event.entity.PlayerDeathEvent;
 import us.myles.ViaVersion.ViaVersionPlugin;
 import us.myles.ViaVersion.api.PacketWrapper;
+import us.myles.ViaVersion.api.Via;
 import us.myles.ViaVersion.api.ViaVersion;
-import us.myles.ViaVersion.api.data.UserConnection;
 import us.myles.ViaVersion.api.type.Type;
-import us.myles.ViaVersion.protocols.base.ProtocolInfo;
+import us.myles.ViaVersion.bukkit.listeners.ViaBukkitListener;
 import us.myles.ViaVersion.protocols.protocol1_9to1_8.Protocol1_9TO1_8;
 
-@RequiredArgsConstructor
-public class DeathListener implements Listener {
-    private final ViaVersionPlugin plugin;
+public class DeathListener extends ViaBukkitListener {
+    public DeathListener(ViaVersionPlugin plugin) {
+        super(plugin, Protocol1_9TO1_8.class);
+    }
 
     @EventHandler(ignoreCancelled = true, priority = EventPriority.MONITOR)
     public void onDeath(PlayerDeathEvent e) {
         Player p = e.getEntity();
-        if (ViaVersion.getConfig().isShowNewDeathMessages() && checkGamerule(p.getWorld()) && e.getDeathMessage() != null && checkPipeline(p)) {
+        if (isOnPipe(p) && ViaVersion.getConfig().isShowNewDeathMessages() && checkGamerule(p.getWorld()) && e.getDeathMessage() != null)
             sendPacket(p, e.getDeathMessage());
-        }
-    }
-
-    public boolean checkPipeline(Player p) {
-        UserConnection userConnection = plugin.getConnection(p);
-        return userConnection != null && userConnection.get(ProtocolInfo.class).getPipeline().contains(Protocol1_9TO1_8.class);
-    }
-
-    private UserConnection getUserConnection(Player p) {
-        return plugin.getConnection(p);
     }
 
     public boolean checkGamerule(World w) {
@@ -46,19 +34,19 @@ public class DeathListener implements Listener {
     }
 
     private void sendPacket(final Player p, final String msg) {
-        Bukkit.getScheduler().runTask(plugin, new Runnable() {
+        Via.getPlatform().runSync(new Runnable() {
             @Override
             public void run() {
                 PacketWrapper wrapper = new PacketWrapper(0x2C, null, getUserConnection(p));
                 try {
-                    wrapper.write(Type.VAR_INT, 2);
-                    wrapper.write(Type.VAR_INT, p.getEntityId());
-                    wrapper.write(Type.INT, p.getEntityId());
-                    Protocol1_9TO1_8.FIX_JSON.write(wrapper, msg);
+                    wrapper.write(Type.VAR_INT, 2); // Event - Entity dead
+                    wrapper.write(Type.VAR_INT, p.getEntityId()); // Player ID
+                    wrapper.write(Type.INT, p.getEntityId()); // Entity ID
+                    Protocol1_9TO1_8.FIX_JSON.write(wrapper, msg); // Message
+
                     wrapper.send(Protocol1_9TO1_8.class);
                 } catch (Exception e) {
                     e.printStackTrace();
-                    wrapper.clearInputBuffer();
                 }
             }
         });

bukkit/src/main/java/us/myles/ViaVersion/bukkit/listeners/protocol1_9to1_8/HandItemCache.java

@@ -1,18 +1,17 @@
-package us.myles.ViaVersion.protocols.protocol1_9to1_8.listeners;
+package us.myles.ViaVersion.bukkit.listeners.protocol1_9to1_8;
 
 import org.bukkit.Bukkit;
 import org.bukkit.entity.Player;
+import org.bukkit.inventory.ItemStack;
 import org.bukkit.scheduler.BukkitRunnable;
 import us.myles.ViaVersion.api.minecraft.item.Item;
 
-import java.util.ArrayList;
-import java.util.List;
-import java.util.UUID;
+import java.util.*;
 import java.util.concurrent.ConcurrentHashMap;
 
 public class HandItemCache extends BukkitRunnable {
     public static boolean CACHE = false;
-    private static ConcurrentHashMap<UUID, Item> handCache = new ConcurrentHashMap<>();
+    private static Map<UUID, Item> handCache = new ConcurrentHashMap<>();
 
     public static Item getHandItem(UUID player) {
         if (!handCache.containsKey(player))
@@ -25,7 +24,7 @@ public class HandItemCache extends BukkitRunnable {
         List<UUID> players = new ArrayList<>(handCache.keySet());
 
         for (Player p : Bukkit.getOnlinePlayers()) {
-            handCache.put(p.getUniqueId(), Item.getItem(p.getItemInHand()));
+            handCache.put(p.getUniqueId(), convert(p.getItemInHand()));
             players.remove(p.getUniqueId());
         }
         // Remove offline players
@@ -33,4 +32,9 @@ public class HandItemCache extends BukkitRunnable {
             handCache.remove(uuid);
         }
     }
+
+    public static Item convert(ItemStack itemInHand) {
+        if (itemInHand == null) return new Item((short) 0, (byte) 0, (short) 0, null);
+        return new Item((short) itemInHand.getTypeId(), (byte) itemInHand.getAmount(), itemInHand.getDurability(), null);
+    }
 }

bukkit/src/main/java/us/myles/ViaVersion/bukkit/listeners/protocol1_9to1_8/PaperPatch.java

@@ -1,32 +1,35 @@
-package us.myles.ViaVersion.protocols.protocol1_9to1_8.listeners;
+package us.myles.ViaVersion.bukkit.listeners.protocol1_9to1_8;
 
 import org.bukkit.Location;
+import org.bukkit.Material;
 import org.bukkit.block.BlockFace;
 import org.bukkit.event.EventHandler;
-import org.bukkit.event.Listener;
 import org.bukkit.event.block.BlockPlaceEvent;
 import us.myles.ViaVersion.ViaVersionPlugin;
-import us.myles.ViaVersion.api.ViaVersion;
-import us.myles.ViaVersion.api.data.UserConnection;
-import us.myles.ViaVersion.protocols.base.ProtocolInfo;
+import us.myles.ViaVersion.bukkit.listeners.ViaBukkitListener;
 import us.myles.ViaVersion.protocols.protocol1_9to1_8.Protocol1_9TO1_8;
 
-public class PaperPatch implements Listener {
+public class PaperPatch extends ViaBukkitListener {
+
+    public PaperPatch(ViaVersionPlugin plugin) {
+        super(plugin, Protocol1_9TO1_8.class);
+    }
 
     /*
     This patch is applied when Paper is detected.
     I'm unsure of what causes this but essentially,
-    placing blocks where your standing works?
+    placing blocks where you're standing works?
     If there is a better fix then we'll replace this.
      */
 
     @EventHandler(ignoreCancelled = true)
     public void onPlace(BlockPlaceEvent e) {
-        if (ViaVersion.getInstance().isPorted(e.getPlayer())) {
-            UserConnection userConnection = ((ViaVersionPlugin) ViaVersion.getInstance()).getConnection(e.getPlayer());
-            if (userConnection == null) return;
-            if (!userConnection.get(ProtocolInfo.class).getPipeline().contains(Protocol1_9TO1_8.class)) return;
+        if (isOnPipe(e.getPlayer())) {
             Location diff = e.getPlayer().getLocation().subtract(e.getBlock().getLocation().add(0.5D, 0, 0.5D));
+            Material block = e.getBlockPlaced().getType();
+            if (!block.isSolid()) {
+                return;
+            }
             if (e.getPlayer().getLocation().getBlock().equals(e.getBlock())) {
                 e.setCancelled(true);
             } else {

bukkit/src/main/java/us/myles/ViaVersion/bukkit/platform/BukkitConfigAPI.java

@@ -0,0 +1,184 @@
+package us.myles.ViaVersion.bukkit.platform;
+
+import us.myles.ViaVersion.ViaVersionPlugin;
+import us.myles.ViaVersion.api.Via;
+import us.myles.ViaVersion.api.ViaVersionConfig;
+import us.myles.ViaVersion.util.Config;
+
+import java.io.File;
+import java.util.Arrays;
+import java.util.List;
+import java.util.Map;
+
+public class BukkitConfigAPI extends Config implements ViaVersionConfig {
+    private static List<String> UNSUPPORTED = Arrays.asList("bungee-ping-interval", "bungee-ping-save", "bungee-servers");
+
+    public BukkitConfigAPI() {
+        super(new File(((ViaVersionPlugin) Via.getPlatform()).getDataFolder(), "config.yml"));
+    }
+
+    @Override
+    public boolean isCheckForUpdates() {
+        return getBoolean("checkforupdates", true);
+    }
+
+    @Override
+    public boolean isPreventCollision() {
+        return getBoolean("prevent-collision", true);
+    }
+
+    @Override
+    public boolean isNewEffectIndicator() {
+        return getBoolean("use-new-effect-indicator", true);
+    }
+
+    @Override
+    public boolean isShowNewDeathMessages() {
+        return getBoolean("use-new-deathmessages", true);
+    }
+
+    @Override
+    public boolean isSuppressMetadataErrors() {
+        return getBoolean("suppress-metadata-errors", false);
+    }
+
+    @Override
+    public boolean isShieldBlocking() {
+        return getBoolean("shield-blocking", true);
+    }
+
+    @Override
+    public boolean isHologramPatch() {
+        return getBoolean("hologram-patch", false);
+    }
+
+    @Override
+    public boolean isPistonAnimationPatch() {
+        return getBoolean("piston-animation-patch", false);
+    }
+
+    @Override
+    public boolean isBossbarPatch() {
+        return getBoolean("bossbar-patch", true);
+    }
+
+    @Override
+    public boolean isBossbarAntiflicker() {
+        return getBoolean("bossbar-anti-flicker", false);
+    }
+
+    @Override
+    public boolean isUnknownEntitiesSuppressed() {
+        return false;
+    }
+
+    @Override
+    public double getHologramYOffset() {
+        return getDouble("hologram-y", -0.96D);
+    }
+
+    @Override
+    public boolean isBlockBreakPatch() {
+        return false;
+    }
+
+    @Override
+    public int getMaxPPS() {
+        return getInt("max-pps", 800);
+    }
+
+    @Override
+    public String getMaxPPSKickMessage() {
+        return getString("max-pps-kick-msg", "Sending packets too fast? lag?");
+    }
+
+    @Override
+    public int getTrackingPeriod() {
+        return getInt("tracking-period", 6);
+    }
+
+    @Override
+    public int getWarningPPS() {
+        return getInt("tracking-warning-pps", 120);
+    }
+
+    @Override
+    public int getMaxWarnings() {
+        return getInt("tracking-max-warnings", 3);
+    }
+
+    @Override
+    public String getMaxWarningsKickMessage() {
+        return getString("tracking-max-kick-msg", "You are sending too many packets, :(");
+    }
+
+    @Override
+    public boolean isAntiXRay() {
+        return getBoolean("anti-xray-patch", true);
+    }
+
+    @Override
+    public boolean isSendSupportedVersions() {
+        return getBoolean("send-supported-versions", false);
+    }
+
+    @Override
+    public boolean isStimulatePlayerTick() {
+        return getBoolean("simulate-pt", true);
+    }
+
+    @Override
+    public boolean isItemCache() {
+        return getBoolean("item-cache", true);
+    }
+
+    @Override
+    public boolean isNMSPlayerTicking() {
+        return getBoolean("nms-player-ticking", true);
+    }
+
+    @Override
+    public boolean isReplacePistons() {
+        return getBoolean("replace-pistons", false);
+    }
+
+    @Override
+    public int getPistonReplacementId() {
+        return getInt("replacement-piston-id", 0);
+    }
+
+    public boolean isAutoTeam() {
+        // Collision has to be enabled first
+        return isPreventCollision() && getBoolean("auto-team", true);
+    }
+
+    @Override
+    public boolean isForceJsonTransform() {
+        return getBoolean("force-json-transform", false);
+    }
+
+    @Override
+    public List<Integer> getBlockedProtocols() {
+        return getIntegerList("block-protocols");
+    }
+
+    @Override
+    public String getBlockedDisconnectMsg() {
+        return getString("block-disconnect-msg", "You are using an unsupported Minecraft version!");
+    }
+
+    @Override
+    public String getReloadDisconnectMsg() {
+        return getString("reload-disconnect-msg", "Server reload, please rejoin!");
+    }
+
+    @Override
+    protected void handleConfig(Map<String, Object> config) {
+        // Nothing currently
+    }
+
+    @Override
+    public List<String> getUnsupportedOptions() {
+        return UNSUPPORTED;
+    }
+}

bukkit/src/main/java/us/myles/ViaVersion/bukkit/platform/BukkitTaskId.java

@@ -0,0 +1,11 @@
+package us.myles.ViaVersion.bukkit.platform;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import us.myles.ViaVersion.api.platform.TaskId;
+
+@Getter
+@AllArgsConstructor
+public class BukkitTaskId implements TaskId {
+    private Integer object;
+}

bukkit/src/main/java/us/myles/ViaVersion/bukkit/platform/BukkitViaAPI.java

@@ -0,0 +1,127 @@
+package us.myles.ViaVersion.bukkit.platform;
+
+import io.netty.buffer.ByteBuf;
+import lombok.AllArgsConstructor;
+import lombok.NonNull;
+import org.bukkit.Bukkit;
+import org.bukkit.entity.Player;
+import us.myles.ViaVersion.ViaVersionPlugin;
+import us.myles.ViaVersion.api.Via;
+import us.myles.ViaVersion.api.ViaAPI;
+import us.myles.ViaVersion.api.ViaVersionAPI;
+import us.myles.ViaVersion.api.boss.BossBar;
+import us.myles.ViaVersion.api.boss.BossColor;
+import us.myles.ViaVersion.api.boss.BossStyle;
+import us.myles.ViaVersion.api.command.ViaVersionCommand;
+import us.myles.ViaVersion.api.data.UserConnection;
+import us.myles.ViaVersion.api.protocol.ProtocolRegistry;
+import us.myles.ViaVersion.boss.ViaBossBar;
+import us.myles.ViaVersion.bukkit.util.ProtocolSupportUtil;
+import us.myles.ViaVersion.protocols.base.ProtocolInfo;
+
+import java.util.Map;
+import java.util.SortedSet;
+import java.util.TreeSet;
+import java.util.UUID;
+
+@AllArgsConstructor
+public class BukkitViaAPI implements ViaAPI<Player>, ViaVersionAPI {
+    private ViaVersionPlugin plugin;
+
+    @Override
+    public int getPlayerVersion(@NonNull Player player) {
+        if (!isPorted(player))
+            return getExternalVersion(player);
+        return getPortedPlayers().get(player.getUniqueId()).get(ProtocolInfo.class).getProtocolVersion();
+    }
+
+    @Override
+    public int getPlayerVersion(@NonNull UUID uuid) {
+        if (!isPorted(uuid))
+            return getExternalVersion(Bukkit.getPlayer(uuid));
+        return getPortedPlayers().get(uuid).get(ProtocolInfo.class).getProtocolVersion();
+    }
+
+    private int getExternalVersion(Player player) {
+        if (!isProtocolSupport()) {
+            return ProtocolRegistry.SERVER_PROTOCOL;
+        } else {
+            return ProtocolSupportUtil.getProtocolVersion(player);
+        }
+    }
+
+    @Override
+    public boolean isPorted(Player player) {
+        return isPorted(player.getUniqueId());
+    }
+
+    @Override
+    public boolean isPorted(UUID playerUUID) {
+        return getPortedPlayers().containsKey(playerUUID);
+    }
+
+    @Override
+    public String getVersion() {
+        return plugin.getDescription().getVersion();
+    }
+
+    @Override
+    public void sendRawPacket(UUID uuid, ByteBuf packet) throws IllegalArgumentException {
+        if (!isPorted(uuid)) throw new IllegalArgumentException("This player is not controlled by ViaVersion!");
+        UserConnection ci = getPortedPlayers().get(uuid);
+        ci.sendRawPacket(packet);
+    }
+
+    @Override
+    public void sendRawPacket(Player player, ByteBuf packet) throws IllegalArgumentException {
+        sendRawPacket(player.getUniqueId(), packet);
+    }
+
+    @Override
+    public BossBar createBossBar(String title, BossColor color, BossStyle style) {
+        return new ViaBossBar(title, 1F, color, style);
+    }
+
+    @Override
+    public BossBar createBossBar(String title, float health, BossColor color, BossStyle style) {
+        return new ViaBossBar(title, health, color, style);
+    }
+
+    @Override
+    public boolean isDebug() {
+        return Via.getManager().isDebug();
+    }
+
+    @Override
+    public ViaVersionCommand getCommandHandler() {
+        return Via.getManager().getCommandHandler();
+    }
+
+    @Override
+    public SortedSet<Integer> getSupportedVersions() {
+        SortedSet<Integer> outputSet = new TreeSet<>(ProtocolRegistry.getSupportedVersions());
+        outputSet.removeAll(Via.getPlatform().getConf().getBlockedProtocols());
+
+        return outputSet;
+    }
+
+    @Override
+    public boolean isCompatSpigotBuild() {
+        return plugin.isCompatSpigotBuild();
+    }
+
+
+    @Override
+    public boolean isSpigot() {
+        return plugin.isSpigot();
+    }
+
+    @Override
+    public boolean isProtocolSupport() {
+        return plugin.isProtocolSupport();
+    }
+
+    public Map<UUID, UserConnection> getPortedPlayers() {
+        return Via.getManager().getPortedPlayers();
+    }
+}

bukkit/src/main/java/us/myles/ViaVersion/bukkit/platform/BukkitViaInjector.java

@@ -0,0 +1,280 @@
+package us.myles.ViaVersion.bukkit.platform;
+
+import io.netty.channel.ChannelFuture;
+import io.netty.channel.ChannelHandler;
+import io.netty.channel.ChannelInitializer;
+import io.netty.channel.socket.SocketChannel;
+import org.bukkit.plugin.PluginDescriptionFile;
+import us.myles.ViaVersion.api.Pair;
+import us.myles.ViaVersion.api.Via;
+import us.myles.ViaVersion.api.platform.ViaInjector;
+import us.myles.ViaVersion.bukkit.handlers.BukkitChannelInitializer;
+import us.myles.ViaVersion.bukkit.util.NMSUtil;
+import us.myles.ViaVersion.util.ConcurrentList;
+import us.myles.ViaVersion.util.ListWrapper;
+import us.myles.ViaVersion.util.ReflectionUtil;
+
+import java.lang.reflect.Field;
+import java.lang.reflect.Method;
+import java.util.ArrayList;
+import java.util.List;
+
+public class BukkitViaInjector implements ViaInjector {
+    private List<ChannelFuture> injectedFutures = new ArrayList<>();
+    private List<Pair<Field, Object>> injectedLists = new ArrayList<>();
+
+    @Override
+    public void inject() throws Exception {
+        try {
+            Object connection = getServerConnection();
+            if (connection == null) {
+                throw new Exception("We failed to find the core component 'ServerConnection', please file an issue on our GitHub.");
+            }
+            for (Field field : connection.getClass().getDeclaredFields()) {
+                field.setAccessible(true);
+                final Object value = field.get(connection);
+                if (value instanceof List) {
+                    // Inject the list
+                    List wrapper = new ListWrapper((List) value) {
+                        @Override
+                        public synchronized void handleAdd(Object o) {
+                            synchronized (this) {
+                                if (o instanceof ChannelFuture) {
+                                    try {
+                                        injectChannelFuture((ChannelFuture) o);
+                                    } catch (Exception e) {
+                                        e.printStackTrace();
+                                    }
+                                }
+                            }
+                        }
+                    };
+                    injectedLists.add(new Pair<>(field, connection));
+                    field.set(connection, wrapper);
+                    // Iterate through current list
+                    synchronized (wrapper) {
+                        for (Object o : (List) value) {
+                            if (o instanceof ChannelFuture) {
+                                injectChannelFuture((ChannelFuture) o);
+                            } else {
+                                break; // not the right list.
+                            }
+                        }
+                    }
+                }
+            }
+
+        } catch (Exception e) {
+            Via.getPlatform().getLogger().severe("Unable to inject ViaVersion, please post these details on our GitHub and ensure you're using a compatible server version.");
+            throw e;
+        }
+    }
+
+    private void injectChannelFuture(ChannelFuture future) throws Exception {
+        try {
+            List<String> names = future.channel().pipeline().names();
+            ChannelHandler bootstrapAcceptor = null;
+            // Pick best
+            for (String name : names) {
+                ChannelHandler handler = future.channel().pipeline().get(name);
+                try {
+                    ReflectionUtil.get(handler, "childHandler", ChannelInitializer.class);
+                    bootstrapAcceptor = handler;
+                } catch (Exception e) {
+                    // Not this one
+                }
+            }
+            // Default to first (Also allows blame to work)
+            if (bootstrapAcceptor == null) {
+                bootstrapAcceptor = future.channel().pipeline().first();
+            }
+            try {
+                ChannelInitializer<SocketChannel> oldInit = ReflectionUtil.get(bootstrapAcceptor, "childHandler", ChannelInitializer.class);
+                ChannelInitializer newInit = new BukkitChannelInitializer(oldInit);
+
+                ReflectionUtil.set(bootstrapAcceptor, "childHandler", newInit);
+                injectedFutures.add(future);
+            } catch (NoSuchFieldException e) {
+                // let's find who to blame!
+                ClassLoader cl = bootstrapAcceptor.getClass().getClassLoader();
+                if (cl.getClass().getName().equals("org.bukkit.plugin.java.PluginClassLoader")) {
+                    PluginDescriptionFile yaml = ReflectionUtil.get(cl, "description", PluginDescriptionFile.class);
+                    throw new Exception("Unable to inject, due to " + bootstrapAcceptor.getClass().getName() + ", try without the plugin " + yaml.getName() + "?");
+                } else {
+                    throw new Exception("Unable to find core component 'childHandler', please check your plugins. issue: " + bootstrapAcceptor.getClass().getName());
+                }
+
+            }
+        } catch (Exception e) {
+            Via.getPlatform().getLogger().severe("We failed to inject ViaVersion, have you got late-bind enabled with something else?");
+            throw e;
+        }
+    }
+
+    @Override
+    public void uninject() {
+        // TODO: Uninject from players currently online to prevent protocol lib issues.
+        for (ChannelFuture future : injectedFutures) {
+            List<String> names = future.channel().pipeline().names();
+            ChannelHandler bootstrapAcceptor = null;
+            // Pick best
+            for (String name : names) {
+                ChannelHandler handler = future.channel().pipeline().get(name);
+                try {
+                    ChannelInitializer<SocketChannel> oldInit = ReflectionUtil.get(handler, "childHandler", ChannelInitializer.class);
+                    if (oldInit instanceof BukkitChannelInitializer) {
+                        bootstrapAcceptor = handler;
+                    }
+                } catch (Exception e) {
+                    // Not this one
+                }
+            }
+            // Default to first
+            if (bootstrapAcceptor == null) {
+                bootstrapAcceptor = future.channel().pipeline().first();
+            }
+
+            try {
+                ChannelInitializer<SocketChannel> oldInit = ReflectionUtil.get(bootstrapAcceptor, "childHandler", ChannelInitializer.class);
+                if (oldInit instanceof BukkitChannelInitializer) {
+                    ReflectionUtil.set(bootstrapAcceptor, "childHandler", ((BukkitChannelInitializer) oldInit).getOriginal());
+                }
+            } catch (Exception e) {
+                Via.getPlatform().getLogger().severe("Failed to remove injection handler, reload won't work with connections, please reboot!");
+            }
+        }
+        injectedFutures.clear();
+
+        for (Pair<Field, Object> pair : injectedLists) {
+            try {
+                Object o = pair.getKey().get(pair.getValue());
+                if (o instanceof ListWrapper) {
+                    pair.getKey().set(pair.getValue(), ((ListWrapper) o).getOriginalList());
+                }
+            } catch (IllegalAccessException e) {
+                Via.getPlatform().getLogger().severe("Failed to remove injection, reload won't work with connections, please reboot!");
+            }
+        }
+
+        injectedLists.clear();
+    }
+
+    @Override
+    public int getServerProtocolVersion() throws Exception {
+        try {
+            Class<?> serverClazz = NMSUtil.nms("MinecraftServer");
+            Object server = ReflectionUtil.invokeStatic(serverClazz, "getServer");
+            Class<?> pingClazz = NMSUtil.nms("ServerPing");
+            Object ping = null;
+            // Search for ping method
+            for (Field f : serverClazz.getDeclaredFields()) {
+                if (f.getType() != null) {
+                    if (f.getType().getSimpleName().equals("ServerPing")) {
+                        f.setAccessible(true);
+                        ping = f.get(server);
+                    }
+                }
+            }
+            if (ping != null) {
+                Object serverData = null;
+                for (Field f : pingClazz.getDeclaredFields()) {
+                    if (f.getType() != null) {
+                        if (f.getType().getSimpleName().endsWith("ServerData")) {
+                            f.setAccessible(true);
+                            serverData = f.get(ping);
+                        }
+                    }
+                }
+                if (serverData != null) {
+                    int protocolVersion = -1;
+                    for (Field f : serverData.getClass().getDeclaredFields()) {
+                        if (f.getType() != null) {
+                            if (f.getType() == int.class) {
+                                f.setAccessible(true);
+                                protocolVersion = (int) f.get(serverData);
+                            }
+                        }
+                    }
+                    if (protocolVersion != -1) {
+                        return protocolVersion;
+                    }
+                }
+            }
+        } catch (Exception e) {
+            throw new Exception("Failed to get server", e);
+        }
+        throw new Exception("Failed to get server");
+    }
+
+    @Override
+    public String getEncoderName() {
+        return "encoder";
+    }
+
+    @Override
+    public String getDecoderName() {
+        return "decoder";
+    }
+
+    public static Object getServerConnection() throws Exception {
+        Class<?> serverClazz = NMSUtil.nms("MinecraftServer");
+        Object server = ReflectionUtil.invokeStatic(serverClazz, "getServer");
+        Object connection = null;
+        for (Method m : serverClazz.getDeclaredMethods()) {
+            if (m.getReturnType() != null) {
+                if (m.getReturnType().getSimpleName().equals("ServerConnection")) {
+                    if (m.getParameterTypes().length == 0) {
+                        connection = m.invoke(server);
+                    }
+                }
+            }
+        }
+        return connection;
+    }
+
+    public static void patchLists() throws Exception {
+        Object connection = getServerConnection();
+        if (connection == null) {
+            Via.getPlatform().getLogger().warning("We failed to find the core component 'ServerConnection', please file an issue on our GitHub.");
+            return;
+        }
+        for (Field field : connection.getClass().getDeclaredFields()) {
+            field.setAccessible(true);
+            final Object value = field.get(connection);
+            if (value instanceof List) {
+                if (!(value instanceof ConcurrentList)) {
+                    ConcurrentList list = new ConcurrentList();
+                    list.addAll((List) value);
+                    field.set(connection, list);
+                }
+            }
+        }
+    }
+
+    public static boolean isBinded() {
+        try {
+            Object connection = getServerConnection();
+            if (connection == null) {
+                return false;
+            }
+            for (Field field : connection.getClass().getDeclaredFields()) {
+                field.setAccessible(true);
+                final Object value = field.get(connection);
+                if (value instanceof List) {
+                    // Inject the list
+                    synchronized (value) {
+                        for (Object o : (List) value) {
+                            if (o instanceof ChannelFuture) {
+                                return true;
+                            } else {
+                                break; // not the right list.
+                            }
+                        }
+                    }
+                }
+            }
+        } catch (Exception e) {
+        }
+        return false;
+    }
+}

bukkit/src/main/java/us/myles/ViaVersion/bukkit/platform/BukkitViaLoader.java

@@ -0,0 +1,91 @@
+package us.myles.ViaVersion.bukkit.platform;
+
+import lombok.AllArgsConstructor;
+import org.bukkit.Bukkit;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.event.player.PlayerQuitEvent;
+import us.myles.ViaVersion.ViaVersionPlugin;
+import us.myles.ViaVersion.api.Via;
+import us.myles.ViaVersion.api.data.UserConnection;
+import us.myles.ViaVersion.api.minecraft.item.Item;
+import us.myles.ViaVersion.api.platform.ViaPlatformLoader;
+import us.myles.ViaVersion.bukkit.listeners.UpdateListener;
+import us.myles.ViaVersion.bukkit.listeners.protocol1_9to1_8.*;
+import us.myles.ViaVersion.bukkit.providers.BukkitViaBulkChunkTranslator;
+import us.myles.ViaVersion.bukkit.providers.BukkitViaMovementTransmitter;
+import us.myles.ViaVersion.protocols.base.ProtocolInfo;
+import us.myles.ViaVersion.protocols.protocol1_9to1_8.providers.BulkChunkTranslatorProvider;
+import us.myles.ViaVersion.protocols.protocol1_9to1_8.providers.HandItemProvider;
+import us.myles.ViaVersion.protocols.protocol1_9to1_8.providers.MovementTransmitterProvider;
+
+import java.util.UUID;
+import java.util.concurrent.Callable;
+import java.util.concurrent.TimeUnit;
+
+@AllArgsConstructor
+public class BukkitViaLoader implements ViaPlatformLoader {
+    private ViaVersionPlugin plugin;
+
+    @Override
+    public void load() {
+        // Update Listener
+        Bukkit.getPluginManager().registerEvents(new UpdateListener(), plugin);
+
+        /* Base Protocol */
+        final ViaVersionPlugin plugin = (ViaVersionPlugin) Bukkit.getPluginManager().getPlugin("ViaVersion");
+
+        Bukkit.getPluginManager().registerEvents(new Listener() {
+            @EventHandler
+            public void onPlayerQuit(PlayerQuitEvent e) {
+                Via.getManager().removePortedClient(e.getPlayer().getUniqueId());
+            }
+        }, plugin);
+
+        /* 1.9 client to 1.8 server */
+
+        new ArmorListener(plugin).register();
+        new DeathListener(plugin).register();
+        new BlockListener(plugin).register();
+
+        if (Bukkit.getVersion().toLowerCase().contains("paper") || Bukkit.getVersion().toLowerCase().contains("taco")) {
+            plugin.getLogger().info("Enabling PaperSpigot/TacoSpigot patch: Fixes block placement.");
+            new PaperPatch(plugin).register();
+        }
+        if (plugin.getConf().isItemCache()) {
+            new HandItemCache().runTaskTimerAsynchronously(plugin, 2L, 2L); // Updates player's items :)
+            HandItemCache.CACHE = true;
+        }
+
+        /* Providers */
+        Via.getManager().getProviders().use(BulkChunkTranslatorProvider.class, new BukkitViaBulkChunkTranslator());
+        Via.getManager().getProviders().use(MovementTransmitterProvider.class, new BukkitViaMovementTransmitter());
+        Via.getManager().getProviders().use(HandItemProvider.class, new HandItemProvider() {
+            @Override
+            public Item getHandItem(final UserConnection info) {
+                if (HandItemCache.CACHE) {
+                    return HandItemCache.getHandItem(info.get(ProtocolInfo.class).getUuid());
+                } else {
+                    try {
+                        return Bukkit.getScheduler().callSyncMethod(Bukkit.getPluginManager().getPlugin("ViaVersion"), new Callable<Item>() {
+                            @Override
+                            public Item call() throws Exception {
+                                UUID playerUUID = info.get(ProtocolInfo.class).getUuid();
+                                if (Bukkit.getPlayer(playerUUID) != null) {
+                                    return HandItemCache.convert(Bukkit.getPlayer(playerUUID).getItemInHand());
+                                }
+                                return null;
+                            }
+                        }).get(10, TimeUnit.SECONDS);
+                    } catch (Exception e) {
+                        Via.getPlatform().getLogger().severe("Error fetching hand item: " + e.getClass().getName());
+                        if (Via.getManager().isDebug())
+                            e.printStackTrace();
+                        return null;
+                    }
+                }
+            }
+        });
+
+    }
+}

bukkit/src/main/java/us/myles/ViaVersion/bukkit/providers/BukkitViaBulkChunkTranslator.java

@@ -1,69 +1,53 @@
-package us.myles.ViaVersion.protocols.protocol1_9to1_8.storage;
+package us.myles.ViaVersion.bukkit.providers;
 
 import com.google.common.collect.Lists;
-import com.google.common.collect.Sets;
-import lombok.Getter;
-import lombok.Setter;
-import org.bukkit.Bukkit;
-import org.bukkit.World;
-import org.bukkit.WorldType;
-import us.myles.ViaVersion.api.ViaVersion;
-import us.myles.ViaVersion.api.data.StoredObject;
-import us.myles.ViaVersion.api.data.UserConnection;
+import us.myles.ViaVersion.ViaVersionPlugin;
+import us.myles.ViaVersion.api.Via;
+import us.myles.ViaVersion.bukkit.util.NMSUtil;
+import us.myles.ViaVersion.protocols.protocol1_9to1_8.providers.BulkChunkTranslatorProvider;
+import us.myles.ViaVersion.protocols.protocol1_9to1_8.storage.ClientChunks;
 import us.myles.ViaVersion.util.ReflectionUtil;
 
 import java.lang.reflect.Method;
 import java.util.List;
-import java.util.Set;
 import java.util.logging.Level;
 
-@Getter
-public class ClientChunks extends StoredObject {
+public class BukkitViaBulkChunkTranslator extends BulkChunkTranslatorProvider {
     // Reflection
     private static ReflectionUtil.ClassReflection mapChunkBulkRef;
     private static ReflectionUtil.ClassReflection mapChunkRef;
     private static Method obfuscateRef;
-    private static Class<?> worldRef;
 
     static {
         try {
-            mapChunkBulkRef = new ReflectionUtil.ClassReflection(ReflectionUtil.nms("PacketPlayOutMapChunkBulk"));
-            mapChunkRef = new ReflectionUtil.ClassReflection(ReflectionUtil.nms("PacketPlayOutMapChunk"));
-            if (ViaVersion.getInstance().isSpigot()) {
-                obfuscateRef = Class.forName("org.spigotmc.AntiXray").getMethod("obfuscate", int.class, int.class, int.class, byte[].class, ReflectionUtil.nms("World"));
-                worldRef = ReflectionUtil.nms("World");
+            mapChunkBulkRef = new ReflectionUtil.ClassReflection(NMSUtil.nms("PacketPlayOutMapChunkBulk"));
+            mapChunkRef = new ReflectionUtil.ClassReflection(NMSUtil.nms("PacketPlayOutMapChunk"));
+            if (((ViaVersionPlugin) Via.getPlatform()).isSpigot()) {
+                obfuscateRef = Class.forName("org.spigotmc.AntiXray").getMethod("obfuscate", int.class, int.class, int.class, byte[].class, NMSUtil.nms("World"));
             }
+        } catch (ClassNotFoundException e) {
+            // Ignore as server is probably 1.9+
         } catch (Exception e) {
-            Bukkit.getLogger().log(Level.WARNING, "Failed to initialise chunks reflection", e);
+            Via.getPlatform().getLogger().log(Level.WARNING, "Failed to initialise chunks reflection", e);
         }
     }
 
-    private final Set<Long> loadedChunks = Sets.newConcurrentHashSet();
-    private final Set<Long> bulkChunks = Sets.newConcurrentHashSet();
-
-    public ClientChunks(UserConnection user) {
-        super(user);
-    }
-
-    private static long toLong(int msw, int lsw) {
-        return ((long) msw << 32) + lsw - -2147483648L;
-    }
-
-    public List<Object> transformMapChunkBulk(Object packet) {
+    @Override
+    public List<Object> transformMapChunkBulk(Object packet, ClientChunks clientChunks) {
         List<Object> list = Lists.newArrayList();
         try {
             int[] xcoords = mapChunkBulkRef.getFieldValue("a", packet, int[].class);
             int[] zcoords = mapChunkBulkRef.getFieldValue("b", packet, int[].class);
             Object[] chunkMaps = mapChunkBulkRef.getFieldValue("c", packet, Object[].class);
 
-            if (ViaVersion.getConfig().isAntiXRay() && ViaVersion.getInstance().isSpigot()) { //Spigot anti-xray patch
+            if (Via.getConfig().isAntiXRay() && ((ViaVersionPlugin) Via.getPlatform()).isSpigot()) { //Spigot anti-xray patch
                 try {
                     Object world = mapChunkBulkRef.getFieldValue("world", packet, Object.class);
+                    Object spigotConfig = ReflectionUtil.getPublic(world, "spigotConfig", Object.class);
+                    Object antiXrayInstance = ReflectionUtil.getPublic(spigotConfig, "antiXrayInstance", Object.class);
 
                     for (int i = 0; i < xcoords.length; ++i) {
-                        Object spigotConfig = ReflectionUtil.getPublic(world, "spigotConfig", Object.class);
-                        Object antiXrayInstance = ReflectionUtil.getPublic(spigotConfig, "antiXrayInstance", Object.class);
-
+                        // TODO: Possibly optimise this
                         Object b = ReflectionUtil.get(chunkMaps[i], "b", Object.class);
                         Object a = ReflectionUtil.get(chunkMaps[i], "a", Object.class);
 
@@ -82,12 +66,22 @@ public class ClientChunks extends StoredObject {
                 mapChunkRef.setFieldValue("b", chunkPacket, z);
                 mapChunkRef.setFieldValue("c", chunkPacket, chunkMap);
                 mapChunkRef.setFieldValue("d", chunkPacket, true); // Chunk bulk chunks are always ground-up
-                bulkChunks.add(toLong(x, z)); // Store for later
+                clientChunks.getBulkChunks().add(ClientChunks.toLong(x, z)); // Store for later
                 list.add(chunkPacket);
             }
         } catch (Exception e) {
-            Bukkit.getLogger().log(Level.WARNING, "Failed to transform chunks bulk", e);
+            Via.getPlatform().getLogger().log(Level.WARNING, "Failed to transform chunks bulk", e);
         }
         return list;
     }
+
+    @Override
+    public boolean isFiltered(Class<?> packetClass) {
+        return packetClass.getName().endsWith("PacketPlayOutMapChunkBulk");
+    }
+
+    @Override
+    public boolean isPacketLevel() {
+        return false;
+    }
 }

bukkit/src/main/java/us/myles/ViaVersion/bukkit/providers/BukkitViaMovementTransmitter.java

@@ -0,0 +1,103 @@
+package us.myles.ViaVersion.bukkit.providers;
+
+import org.bukkit.Bukkit;
+import org.bukkit.entity.Player;
+import us.myles.ViaVersion.api.Via;
+import us.myles.ViaVersion.api.data.UserConnection;
+import us.myles.ViaVersion.bukkit.util.NMSUtil;
+import us.myles.ViaVersion.protocols.base.ProtocolInfo;
+import us.myles.ViaVersion.protocols.protocol1_9to1_8.providers.MovementTransmitterProvider;
+import us.myles.ViaVersion.protocols.protocol1_9to1_8.storage.MovementTracker;
+
+import java.lang.reflect.Field;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+
+public class BukkitViaMovementTransmitter extends MovementTransmitterProvider {
+    private static boolean USE_NMS = true;
+    // Used for packet mode
+    private Object idlePacket;
+    private Object idlePacket2;
+    // Use for nms
+    private Method getHandle;
+    private Field connection;
+    private Method handleFlying;
+
+    public BukkitViaMovementTransmitter() {
+        USE_NMS = Via.getConfig().isNMSPlayerTicking();
+
+        Class<?> idlePacketClass;
+        try {
+            idlePacketClass = NMSUtil.nms("PacketPlayInFlying");
+        } catch (ClassNotFoundException e) {
+            return; // We'll hope this is 1.9.4+
+        }
+        try {
+            idlePacket = idlePacketClass.newInstance();
+            idlePacket2 = idlePacketClass.newInstance();
+
+            Field flying = idlePacketClass.getDeclaredField("f");
+            flying.setAccessible(true);
+
+            flying.set(idlePacket2, true);
+        } catch (NoSuchFieldException | InstantiationException | IllegalArgumentException | IllegalAccessException e) {
+            throw new RuntimeException("Couldn't make player idle packet, help!", e);
+        }
+        if (USE_NMS) {
+            try {
+                getHandle = NMSUtil.obc("entity.CraftPlayer").getDeclaredMethod("getHandle");
+            } catch (NoSuchMethodException | ClassNotFoundException e) {
+                throw new RuntimeException("Couldn't find CraftPlayer", e);
+            }
+
+            try {
+                connection = NMSUtil.nms("EntityPlayer").getDeclaredField("playerConnection");
+            } catch (NoSuchFieldException | ClassNotFoundException e) {
+                throw new RuntimeException("Couldn't find Player Connection", e);
+            }
+
+            try {
+                handleFlying = NMSUtil.nms("PlayerConnection").getDeclaredMethod("a", idlePacketClass);
+            } catch (NoSuchMethodException | ClassNotFoundException e) {
+                throw new RuntimeException("Couldn't find CraftPlayer", e);
+            }
+        }
+    }
+
+    @Override
+    public Object getFlyingPacket() {
+        if (idlePacket == null)
+            throw new NullPointerException("Could not locate flying packet");
+        return idlePacket2;
+    }
+
+    @Override
+    public Object getGroundPacket() {
+        if (idlePacket == null)
+            throw new NullPointerException("Could not locate flying packet");
+        return idlePacket;
+    }
+
+    @Override
+    public void sendPlayer(UserConnection info) {
+        if (USE_NMS) {
+            Player player = Bukkit.getPlayer(info.get(ProtocolInfo.class).getUuid());
+            if (player != null) {
+                try {
+                    // Tick player
+                    Object entityPlayer = getHandle.invoke(player);
+                    Object pc = connection.get(entityPlayer);
+                    if (pc != null) {
+                        handleFlying.invoke(pc, (info.get(MovementTracker.class).isGround() ? idlePacket2 : idlePacket));
+                        // Tick world
+                        info.get(MovementTracker.class).incrementIdlePacket();
+                    }
+                } catch (IllegalAccessException | InvocationTargetException e) {
+                    e.printStackTrace();
+                }
+            }
+        } else {
+            super.sendPlayer(info);
+        }
+    }
+}

bukkit/src/main/java/us/myles/ViaVersion/bukkit/util/NMSUtil.java

@@ -0,0 +1,20 @@
+package us.myles.ViaVersion.bukkit.util;
+
+import org.bukkit.Bukkit;
+
+public class NMSUtil {
+    private static String BASE = Bukkit.getServer().getClass().getPackage().getName();
+    private static String NMS = BASE.replace("org.bukkit.craftbukkit", "net.minecraft.server");
+
+    public static Class<?> nms(String className) throws ClassNotFoundException {
+        return Class.forName(NMS + "." + className);
+    }
+
+    public static Class<?> obc(String className) throws ClassNotFoundException {
+        return Class.forName(BASE + "." + className);
+    }
+
+    public static String getVersion() {
+        return BASE.substring(BASE.lastIndexOf('.') + 1);
+    }
+}

bukkit/src/main/java/us/myles/ViaVersion/bukkit/util/ProtocolSupportUtil.java

@@ -1,4 +1,4 @@
-package us.myles.ViaVersion.util;
+package us.myles.ViaVersion.bukkit.util;
 
 import org.bukkit.entity.Player;
 

bukkit/src/main/resources/plugin.yml

@@ -0,0 +1,12 @@
+name: ViaVersion
+main: us.myles.ViaVersion.ViaVersionPlugin
+authors: [_MylesC, Matsv]
+version: ${project.version}
+description: ${project.description}
+load: postworld
+loadbefore: [ProtocolLib, ProxyPipe, SpigotLib, SkinRestorer]
+softdepend: [ProtocolSupport, PacketListenerApi]
+commands:
+  viaversion:
+    description: Shows ViaVersion Version and more.
+    aliases: [viaver, vvbukkit]

bungee/pom.xml

@@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <parent>
+        <artifactId>viaversion-parent</artifactId>
+        <groupId>us.myles</groupId>
+        <version>1.0.2</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>viaversion-bungee</artifactId>
+
+    <build>
+        <resources>
+            <resource>
+                <targetPath>.</targetPath>
+                <filtering>true</filtering>
+                <directory>src/main/resources/</directory>
+                <includes>
+                    <include>*</include>
+                </includes>
+            </resource>
+        </resources>
+    </build>
+
+    <dependencies>
+        <!-- BungeeCord API -->
+        <dependency>
+            <groupId>net.md-5</groupId>
+            <artifactId>bungeecord-api</artifactId>
+            <version>1.10-SNAPSHOT</version>
+            <scope>provided</scope>
+        </dependency>
+
+        <!-- Common Module -->
+        <dependency>
+            <groupId>us.myles</groupId>
+            <artifactId>viaversion-common</artifactId>
+            <version>1.0.2</version>
+        </dependency>
+    </dependencies>
+</project>

bungee/src/main/java/us/myles/ViaVersion/BungeePlugin.java

@@ -0,0 +1,162 @@
+package us.myles.ViaVersion;
+
+import com.google.gson.JsonObject;
+import net.md_5.bungee.api.ProxyServer;
+import net.md_5.bungee.api.chat.TextComponent;
+import net.md_5.bungee.api.connection.ProxiedPlayer;
+import net.md_5.bungee.api.event.PlayerDisconnectEvent;
+import net.md_5.bungee.api.plugin.Listener;
+import net.md_5.bungee.api.plugin.Plugin;
+import net.md_5.bungee.event.EventHandler;
+import us.myles.ViaVersion.api.Via;
+import us.myles.ViaVersion.api.ViaAPI;
+import us.myles.ViaVersion.api.command.ViaCommandSender;
+import us.myles.ViaVersion.api.configuration.ConfigurationProvider;
+import us.myles.ViaVersion.api.platform.TaskId;
+import us.myles.ViaVersion.api.platform.ViaPlatform;
+import us.myles.ViaVersion.bungee.commands.BungeeCommand;
+import us.myles.ViaVersion.bungee.commands.BungeeCommandHandler;
+import us.myles.ViaVersion.bungee.commands.BungeeCommandSender;
+import us.myles.ViaVersion.bungee.platform.*;
+import us.myles.ViaVersion.bungee.service.ProtocolDetectorService;
+import us.myles.ViaVersion.dump.PluginInfo;
+import us.myles.ViaVersion.util.GsonUtil;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import java.util.UUID;
+import java.util.concurrent.TimeUnit;
+
+public class BungeePlugin extends Plugin implements ViaPlatform, Listener {
+    private BungeeViaAPI api;
+    private BungeeConfigAPI config;
+    private BungeeCommandHandler commandHandler;
+
+    @Override
+    public void onLoad() {
+        api = new BungeeViaAPI();
+        config = new BungeeConfigAPI(getDataFolder());
+        commandHandler = new BungeeCommandHandler();
+        ProxyServer.getInstance().getPluginManager().registerCommand(this, new BungeeCommand(commandHandler));
+        // Init platform
+        Via.init(ViaManager.builder()
+                .platform(this)
+                .injector(new BungeeViaInjector())
+                .loader(new BungeeViaLoader(this))
+                .commandHandler(commandHandler)
+                .build());
+    }
+
+    @Override
+    public void onEnable() {
+        // Inject
+        Via.getManager().init();
+    }
+
+    @Override
+    public String getPlatformName() {
+        return getProxy().getName();
+    }
+
+    @Override
+    public String getPlatformVersion() {
+        return getProxy().getVersion();
+    }
+
+    @Override
+    public String getPluginVersion() {
+        return getDescription().getVersion();
+    }
+
+    @Override
+    public TaskId runAsync(Runnable runnable) {
+        return new BungeeTaskId(getProxy().getScheduler().runAsync(this, runnable).getId());
+    }
+
+    @Override
+    public TaskId runSync(Runnable runnable) {
+        return runAsync(runnable);
+    }
+
+    @Override
+    public TaskId runRepeatingSync(Runnable runnable, Long ticks) {
+        return new BungeeTaskId(getProxy().getScheduler().schedule(this, runnable, 0, ticks * 50, TimeUnit.MILLISECONDS).getId());
+    }
+
+    @Override
+    public void cancelTask(TaskId taskId) {
+        if (taskId == null) return;
+        if (taskId.getObject() == null) return;
+        if (taskId instanceof BungeeTaskId) {
+            getProxy().getScheduler().cancel((Integer) taskId.getObject());
+        }
+    }
+
+    @Override
+    public ViaCommandSender[] getOnlinePlayers() {
+        ViaCommandSender[] array = new ViaCommandSender[getProxy().getPlayers().size()];
+        int i = 0;
+        for (ProxiedPlayer player : getProxy().getPlayers()) {
+            array[i++] = new BungeeCommandSender(player);
+        }
+        return array;
+    }
+
+    @Override
+    public void sendMessage(UUID uuid, String message) {
+        getProxy().getPlayer(uuid).sendMessage(TextComponent.fromLegacyText(message));
+    }
+
+    @Override
+    public boolean kickPlayer(UUID uuid, String message) {
+        if (getProxy().getPlayer(uuid) != null) {
+            getProxy().getPlayer(uuid).disconnect(TextComponent.fromLegacyText(message));
+            return true;
+        }
+        return false;
+    }
+
+    @Override
+    public boolean isPluginEnabled() {
+        return true;
+    }
+
+    @Override
+    public ViaAPI getApi() {
+        return api;
+    }
+
+    @Override
+    public BungeeConfigAPI getConf() {
+        return config;
+    }
+
+    @Override
+    public ConfigurationProvider getConfigurationProvider() {
+        return config;
+    }
+
+    @Override
+    public void onReload() {
+        // Injector prints a message <3
+    }
+
+    @Override
+    public JsonObject getDump() {
+        JsonObject platformSpecific = new JsonObject();
+
+        List<PluginInfo> plugins = new ArrayList<>();
+        for (Plugin p : ProxyServer.getInstance().getPluginManager().getPlugins())
+            plugins.add(new PluginInfo(true, p.getDescription().getName(), p.getDescription().getVersion(), p.getDescription().getMain(), Arrays.asList(p.getDescription().getAuthor())));
+
+        platformSpecific.add("plugins", GsonUtil.getGson().toJsonTree(plugins));
+        platformSpecific.add("servers", GsonUtil.getGson().toJsonTree(ProtocolDetectorService.getDetectedIds()));
+        return platformSpecific;
+    }
+
+    @EventHandler
+    public void onQuit(PlayerDisconnectEvent e) {
+        Via.getManager().removePortedClient(e.getPlayer().getUniqueId());
+    }
+}

bungee/src/main/java/us/myles/ViaVersion/bungee/commands/BungeeCommand.java

@@ -0,0 +1,24 @@
+package us.myles.ViaVersion.bungee.commands;
+
+import net.md_5.bungee.api.CommandSender;
+import net.md_5.bungee.api.plugin.Command;
+import net.md_5.bungee.api.plugin.TabExecutor;
+
+public class BungeeCommand extends Command implements TabExecutor {
+    private final BungeeCommandHandler handler;
+
+    public BungeeCommand(BungeeCommandHandler handler) {
+        super("viaversion", "", "viaver", "vvbungee"); // The CommandHandler will handle the permission
+        this.handler = handler;
+    }
+
+    @Override
+    public void execute(CommandSender commandSender, String[] strings) {
+        handler.onCommand(new BungeeCommandSender(commandSender), strings);
+    }
+
+    @Override
+    public Iterable<String> onTabComplete(CommandSender commandSender, String[] strings) {
+        return handler.onTabComplete(new BungeeCommandSender(commandSender), strings);
+    }
+}

bungee/src/main/java/us/myles/ViaVersion/bungee/commands/BungeeCommandHandler.java

@@ -0,0 +1,16 @@
+package us.myles.ViaVersion.bungee.commands;
+
+import us.myles.ViaVersion.api.Via;
+import us.myles.ViaVersion.bungee.commands.subs.ProbeSubCmd;
+import us.myles.ViaVersion.commands.ViaCommandHandler;
+
+public class BungeeCommandHandler extends ViaCommandHandler {
+    public BungeeCommandHandler() {
+        try {
+            registerSubCommand(new ProbeSubCmd());
+        } catch (Exception e) {
+            Via.getPlatform().getLogger().severe("Failed to register Bungee subcommands");
+            e.printStackTrace();
+        }
+    }
+}

bungee/src/main/java/us/myles/ViaVersion/bungee/commands/BungeeCommandSender.java

@@ -0,0 +1,38 @@
+package us.myles.ViaVersion.bungee.commands;
+
+import lombok.AllArgsConstructor;
+import net.md_5.bungee.api.CommandSender;
+import net.md_5.bungee.api.chat.TextComponent;
+import net.md_5.bungee.api.connection.ProxiedPlayer;
+import us.myles.ViaVersion.api.command.ViaCommandSender;
+
+import java.util.UUID;
+
+@AllArgsConstructor
+public class BungeeCommandSender implements ViaCommandSender {
+    private CommandSender sender;
+
+    @Override
+    public boolean hasPermission(String permission) {
+        return sender.hasPermission(permission);
+    }
+
+    @Override
+    public void sendMessage(String msg) {
+        sender.sendMessage(TextComponent.fromLegacyText(msg));
+    }
+
+    @Override
+    public UUID getUUID() {
+        if (sender instanceof ProxiedPlayer) {
+            return ((ProxiedPlayer) sender).getUniqueId();
+        } else {
+            return UUID.fromString(getName());
+        }
+    }
+
+    @Override
+    public String getName() {
+        return sender.getName();
+    }
+}

bungee/src/main/java/us/myles/ViaVersion/bungee/commands/subs/ProbeSubCmd.java

@@ -0,0 +1,28 @@
+package us.myles.ViaVersion.bungee.commands.subs;
+
+import us.myles.ViaVersion.api.Via;
+import us.myles.ViaVersion.api.command.ViaCommandSender;
+import us.myles.ViaVersion.api.command.ViaSubCommand;
+import us.myles.ViaVersion.bungee.platform.BungeeConfigAPI;
+import us.myles.ViaVersion.bungee.service.ProtocolDetectorService;
+
+public class ProbeSubCmd extends ViaSubCommand {
+    @Override
+    public String name() {
+        return "probe";
+    }
+
+    @Override
+    public String description() {
+        return "Forces ViaVersion to scan server protocol versions " +
+                (((BungeeConfigAPI) Via.getConfig()).getBungeePingInterval() == -1 ?
+                        "" : "(Also happens at an interval)");
+    }
+
+    @Override
+    public boolean execute(ViaCommandSender sender, String[] args) {
+        ProtocolDetectorService.getInstance().run();
+        sendMessage(sender, "&6Started searching for protocol versions");
+        return true;
+    }
+}

bungee/src/main/java/us/myles/ViaVersion/bungee/handlers/BungeeChannelInitializer.java

@@ -0,0 +1,41 @@
+package us.myles.ViaVersion.bungee.handlers;
+
+import io.netty.channel.Channel;
+import io.netty.channel.ChannelInitializer;
+import io.netty.channel.socket.SocketChannel;
+import us.myles.ViaVersion.api.data.UserConnection;
+import us.myles.ViaVersion.api.protocol.ProtocolPipeline;
+
+import java.lang.reflect.Method;
+
+public class BungeeChannelInitializer extends ChannelInitializer<SocketChannel> {
+
+    private final ChannelInitializer<Channel> original;
+    private Method method;
+
+    public BungeeChannelInitializer(ChannelInitializer<Channel> oldInit) {
+        this.original = oldInit;
+        try {
+            this.method = ChannelInitializer.class.getDeclaredMethod("initChannel", Channel.class);
+            this.method.setAccessible(true);
+        } catch (NoSuchMethodException e) {
+            e.printStackTrace();
+        }
+    }
+
+    @Override
+    protected void initChannel(SocketChannel socketChannel) throws Exception {
+        UserConnection info = new UserConnection(socketChannel);
+        // init protocol
+        new ProtocolPipeline(info);
+        // Add originals
+        this.method.invoke(this.original, socketChannel);
+        // Add our transformers
+        BungeeEncodeHandler encoder = new BungeeEncodeHandler(info);
+        BungeeDecodeHandler decoder = new BungeeDecodeHandler(info);
+
+        socketChannel.pipeline().addBefore("packet-encoder", "via-encoder", encoder);
+        socketChannel.pipeline().addBefore("packet-decoder", "via-decoder", decoder);
+
+    }
+}

bungee/src/main/java/us/myles/ViaVersion/bungee/handlers/BungeeDecodeHandler.java

@@ -0,0 +1,79 @@
+package us.myles.ViaVersion.bungee.handlers;
+
+import io.netty.buffer.ByteBuf;
+import io.netty.channel.ChannelHandler;
+import io.netty.channel.ChannelHandlerContext;
+import io.netty.handler.codec.MessageToMessageDecoder;
+import us.myles.ViaVersion.api.PacketWrapper;
+import us.myles.ViaVersion.api.data.UserConnection;
+import us.myles.ViaVersion.api.type.Type;
+import us.myles.ViaVersion.exception.CancelException;
+import us.myles.ViaVersion.packets.Direction;
+import us.myles.ViaVersion.protocols.base.ProtocolInfo;
+import us.myles.ViaVersion.util.PipelineUtil;
+
+import java.util.List;
+
+@ChannelHandler.Sharable
+public class BungeeDecodeHandler extends MessageToMessageDecoder<ByteBuf> {
+
+    private final UserConnection info;
+
+    public BungeeDecodeHandler(UserConnection info) {
+        this.info = info;
+    }
+
+    @Override
+    protected void decode(final ChannelHandlerContext ctx, ByteBuf bytebuf, List<Object> out) throws Exception {
+        // use transformers
+        if (bytebuf.readableBytes() > 0) {
+            // Ignore if pending disconnect
+            if (info.isPendingDisconnect()) {
+                return;
+            }
+            // Increment received
+            boolean second = info.incrementReceived();
+            // Check PPS
+            if (second) {
+                if (info.handlePPS())
+                    return;
+            }
+
+            if (info.isActive()) {
+                // Handle ID
+                int id = Type.VAR_INT.read(bytebuf);
+                // Transform
+                ByteBuf newPacket = ctx.alloc().buffer();
+                try {
+                    if (id == PacketWrapper.PASSTHROUGH_ID) {
+                        newPacket.writeBytes(bytebuf);
+                    } else {
+                        PacketWrapper wrapper = new PacketWrapper(id, bytebuf, info);
+                        ProtocolInfo protInfo = info.get(ProtocolInfo.class);
+                        protInfo.getPipeline().transform(Direction.INCOMING, protInfo.getState(), wrapper);
+                        wrapper.writeToBuffer(newPacket);
+                    }
+
+                    bytebuf.clear();
+                    bytebuf = newPacket;
+                } catch (Exception e) {
+                    // Clear Buffer
+                    bytebuf.clear();
+                    // Release Packet, be free!
+                    newPacket.release();
+                    throw e;
+                }
+            } else {
+                bytebuf.retain();
+            }
+
+            out.add(bytebuf);
+        }
+    }
+
+    @Override
+    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
+        if (PipelineUtil.containsCause(cause, CancelException.class)) return;
+        super.exceptionCaught(ctx, cause);
+    }
+}

bungee/src/main/java/us/myles/ViaVersion/bungee/handlers/BungeeEncodeHandler.java

@@ -0,0 +1,82 @@
+package us.myles.ViaVersion.bungee.handlers;
+
+import io.netty.buffer.ByteBuf;
+import io.netty.channel.ChannelHandler;
+import io.netty.channel.ChannelHandlerContext;
+import io.netty.handler.codec.MessageToMessageEncoder;
+import us.myles.ViaVersion.api.PacketWrapper;
+import us.myles.ViaVersion.api.data.UserConnection;
+import us.myles.ViaVersion.api.type.Type;
+import us.myles.ViaVersion.bungee.util.BungeePipelineUtil;
+import us.myles.ViaVersion.exception.CancelException;
+import us.myles.ViaVersion.packets.Direction;
+import us.myles.ViaVersion.protocols.base.ProtocolInfo;
+import us.myles.ViaVersion.util.PipelineUtil;
+
+import java.util.List;
+
+@ChannelHandler.Sharable
+public class BungeeEncodeHandler extends MessageToMessageEncoder<ByteBuf> {
+    private final UserConnection info;
+    private boolean handledCompression = false;
+
+    public BungeeEncodeHandler(UserConnection info) {
+        this.info = info;
+    }
+
+
+    @Override
+    protected void encode(final ChannelHandlerContext ctx, ByteBuf bytebuf, List<Object> out) throws Exception {
+        if (bytebuf.readableBytes() == 0) {
+            throw new CancelException();
+        }
+        boolean needsCompress = false;
+        if (!handledCompression) {
+            if (ctx.pipeline().names().indexOf("compress") > ctx.pipeline().names().indexOf("via-encoder")) {
+                // Need to decompress this packet due to bad order
+                bytebuf = BungeePipelineUtil.decompress(ctx, bytebuf);
+                ChannelHandler encoder = ctx.pipeline().get("via-decoder");
+                ChannelHandler decoder = ctx.pipeline().get("via-encoder");
+                ctx.pipeline().remove(encoder);
+                ctx.pipeline().remove(decoder);
+                ctx.pipeline().addAfter("decompress", "via-decoder", encoder);
+                ctx.pipeline().addAfter("compress", "via-encoder", decoder);
+                needsCompress = true;
+                handledCompression = true;
+            }
+        }
+        // Increment sent
+        info.incrementSent();
+
+        if (info.isActive()) {
+            // Handle ID
+            int id = Type.VAR_INT.read(bytebuf);
+            // Transform
+            ByteBuf oldPacket = bytebuf.copy();
+            bytebuf.clear();
+
+            try {
+                PacketWrapper wrapper = new PacketWrapper(id, oldPacket, info);
+                ProtocolInfo protInfo = info.get(ProtocolInfo.class);
+                protInfo.getPipeline().transform(Direction.OUTGOING, protInfo.getState(), wrapper);
+                wrapper.writeToBuffer(bytebuf);
+            } catch (Exception e) {
+                bytebuf.clear();
+                throw e;
+            } finally {
+                oldPacket.release();
+            }
+        }
+
+        if (needsCompress) {
+            bytebuf = BungeePipelineUtil.compress(ctx, bytebuf);
+        }
+        out.add(bytebuf.retain());
+    }
+
+    @Override
+    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
+        if (PipelineUtil.containsCause(cause, CancelException.class)) return;
+        super.exceptionCaught(ctx, cause);
+    }
+}

bungee/src/main/java/us/myles/ViaVersion/bungee/handlers/BungeeServerHandler.java

@@ -0,0 +1,128 @@
+package us.myles.ViaVersion.bungee.handlers;
+
+import net.md_5.bungee.api.connection.ProxiedPlayer;
+import net.md_5.bungee.api.event.ServerConnectEvent;
+import net.md_5.bungee.api.event.ServerConnectedEvent;
+import net.md_5.bungee.api.plugin.Listener;
+import net.md_5.bungee.event.EventHandler;
+import net.md_5.bungee.event.EventPriority;
+import us.myles.ViaVersion.api.Pair;
+import us.myles.ViaVersion.api.Via;
+import us.myles.ViaVersion.api.data.UserConnection;
+import us.myles.ViaVersion.api.protocol.Protocol;
+import us.myles.ViaVersion.api.protocol.ProtocolPipeline;
+import us.myles.ViaVersion.api.protocol.ProtocolRegistry;
+import us.myles.ViaVersion.bungee.service.ProtocolDetectorService;
+import us.myles.ViaVersion.bungee.storage.BungeeStorage;
+import us.myles.ViaVersion.protocols.base.ProtocolInfo;
+
+import java.lang.reflect.Field;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.util.List;
+
+public class BungeeServerHandler implements Listener {
+    private static Method getPendingConnection;
+    private static Method getHandshake;
+    private static Method setProtocol;
+    private static Method getEntityMap = null;
+    private static Method setVersion = null;
+    private static Field entityRewrite = null;
+    private static Field channelWrapper = null;
+
+    static {
+        try {
+            getPendingConnection = Class.forName("net.md_5.bungee.UserConnection").getDeclaredMethod("getPendingConnection");
+            getHandshake = Class.forName("net.md_5.bungee.connection.InitialHandler").getDeclaredMethod("getHandshake");
+            setProtocol = Class.forName("net.md_5.bungee.protocol.packet.Handshake").getDeclaredMethod("setProtocolVersion", int.class);
+            getEntityMap = Class.forName("net.md_5.bungee.entitymap.EntityMap").getDeclaredMethod("getEntityMap", int.class);
+            setVersion = Class.forName("net.md_5.bungee.netty.ChannelWrapper").getDeclaredMethod("setVersion", int.class);
+            channelWrapper = Class.forName("net.md_5.bungee.UserConnection").getDeclaredField("ch");
+            channelWrapper.setAccessible(true);
+            entityRewrite = Class.forName("net.md_5.bungee.UserConnection").getDeclaredField("entityRewrite");
+            entityRewrite.setAccessible(true);
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+
+    // Set the handshake version every time someone connects to any server
+    @EventHandler
+    public void onServerConnect(ServerConnectEvent e) {
+        UserConnection user = Via.getManager().getConnection(e.getPlayer().getUniqueId());
+        if (user == null) return;
+        if (!user.has(BungeeStorage.class)) {
+            user.put(new BungeeStorage(user, e.getPlayer()));
+        }
+
+        int protocolId = ProtocolDetectorService.getProtocolId(e.getTarget().getName());
+        List<Pair<Integer, Protocol>> protocols = ProtocolRegistry.getProtocolPath(user.get(ProtocolInfo.class).getProtocolVersion(), protocolId);
+
+        // Check if ViaVersion can support that version
+        try {
+            Object pendingConnection = getPendingConnection.invoke(e.getPlayer());
+            Object handshake = getHandshake.invoke(pendingConnection);
+            setProtocol.invoke(handshake, protocols == null ? user.get(ProtocolInfo.class).getProtocolVersion() : protocolId);
+        } catch (InvocationTargetException | IllegalAccessException e1) {
+            e1.printStackTrace();
+        }
+    }
+
+    @EventHandler(priority = EventPriority.LOWEST)
+    public void onServerConnected(ServerConnectedEvent e) {
+        try {
+            checkServerChange(e, Via.getManager().getConnection(e.getPlayer().getUniqueId()));
+        } catch (Exception e1) {
+            e1.printStackTrace();
+        }
+    }
+
+    public void checkServerChange(ServerConnectedEvent e, UserConnection user) throws Exception {
+        if (user == null) return;
+        if (user.has(BungeeStorage.class)) {
+            BungeeStorage storage = user.get(BungeeStorage.class);
+            ProxiedPlayer player = storage.getPlayer();
+
+            if (e.getServer() != null) {
+                if (!e.getServer().getInfo().getName().equals(storage.getCurrentServer())) {
+                    String serverName = e.getServer().getInfo().getName();
+
+                    storage.setCurrentServer(serverName);
+
+                    int protocolId = ProtocolDetectorService.getProtocolId(serverName);
+
+                    ProtocolInfo info = user.get(ProtocolInfo.class);
+                    // Refresh the pipes
+                    List<Pair<Integer, Protocol>> protocols = ProtocolRegistry.getProtocolPath(info.getProtocolVersion(), protocolId);
+                    ProtocolPipeline pipeline = user.get(ProtocolInfo.class).getPipeline();
+                    user.clearStoredObjects();
+                    pipeline.cleanPipes();
+                    if (protocols == null) {
+                        // TODO Check Bungee Supported Protocols? *shrugs*
+                        protocolId = info.getProtocolVersion();
+                    } else {
+                        for (Pair<Integer, Protocol> prot : protocols) {
+                            pipeline.add(prot.getValue());
+                        }
+                    }
+
+                    user.put(info);
+                    user.put(storage);
+
+                    user.setActive(protocols != null);
+
+                    // Init all protocols TODO check if this can get moved up to the previous for loop, and doesn't require the pipeline to already exist.
+                    for (Protocol protocol : pipeline.pipes()) {
+                        protocol.init(user);
+                    }
+
+                    Object wrapper = channelWrapper.get(player);
+                    setVersion.invoke(wrapper, protocolId);
+
+                    Object entityMap = getEntityMap.invoke(null, protocolId);
+                    entityRewrite.set(player, entityMap);
+                }
+            }
+        }
+    }
+}

bungee/src/main/java/us/myles/ViaVersion/bungee/listeners/ElytraPatch.java

@@ -0,0 +1,45 @@
+package us.myles.ViaVersion.bungee.listeners;
+
+import net.md_5.bungee.api.event.ServerConnectedEvent;
+import net.md_5.bungee.api.plugin.Listener;
+import net.md_5.bungee.event.EventHandler;
+import net.md_5.bungee.event.EventPriority;
+import us.myles.ViaVersion.api.PacketWrapper;
+import us.myles.ViaVersion.api.Via;
+import us.myles.ViaVersion.api.data.UserConnection;
+import us.myles.ViaVersion.api.minecraft.metadata.Metadata;
+import us.myles.ViaVersion.api.minecraft.metadata.types.MetaType1_9;
+import us.myles.ViaVersion.api.type.Type;
+import us.myles.ViaVersion.api.type.types.version.Types1_9;
+import us.myles.ViaVersion.protocols.base.ProtocolInfo;
+import us.myles.ViaVersion.protocols.protocol1_9to1_8.Protocol1_9TO1_8;
+import us.myles.ViaVersion.protocols.protocol1_9to1_8.storage.EntityTracker;
+
+import java.util.Collections;
+
+/*
+ * This patches https://github.com/MylesIsCool/ViaVersion/issues/555
+ */
+public class ElytraPatch implements Listener {
+
+    @EventHandler(priority = EventPriority.HIGH)
+    public void onServerConnected(ServerConnectedEvent event) {
+        UserConnection user = Via.getManager().getConnection(event.getPlayer().getUniqueId());
+        if (user == null) return;
+
+        try {
+            if (user.get(ProtocolInfo.class).getPipeline().contains(Protocol1_9TO1_8.class)) {
+                int entityId = user.get(EntityTracker.class).getProvidedEntityId();
+
+                PacketWrapper wrapper = new PacketWrapper(0x39, null, user);
+
+                wrapper.write(Type.VAR_INT, entityId);
+                wrapper.write(Types1_9.METADATA_LIST, Collections.singletonList(new Metadata(0, MetaType1_9.Byte, (byte) 0)));
+
+                wrapper.send(Protocol1_9TO1_8.class);
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+}

bungee/src/main/java/us/myles/ViaVersion/bungee/listeners/MainHandPatch.java

@@ -0,0 +1,47 @@
+package us.myles.ViaVersion.bungee.listeners;
+
+import net.md_5.bungee.api.event.ServerConnectEvent;
+import net.md_5.bungee.api.plugin.Listener;
+import net.md_5.bungee.event.EventHandler;
+import us.myles.ViaVersion.api.Via;
+import us.myles.ViaVersion.api.data.UserConnection;
+import us.myles.ViaVersion.protocols.base.ProtocolInfo;
+import us.myles.ViaVersion.protocols.protocol1_9to1_8.Protocol1_9TO1_8;
+import us.myles.ViaVersion.protocols.protocol1_9to1_8.storage.EntityTracker;
+
+import java.lang.reflect.Method;
+
+/*
+    This solves the wrong mainhand issue when you join with BungeeCord on a 1.8 server, and switch to a 1.9 or higher.
+ */
+public class MainHandPatch implements Listener {
+    private static Method getSettings = null;
+    private static Method setMainHand = null;
+
+    static {
+        try {
+            getSettings = Class.forName("net.md_5.bungee.UserConnection").getDeclaredMethod("getSettings");
+            setMainHand = Class.forName("net.md_5.bungee.protocol.packet.ClientSettings").getDeclaredMethod("setMainHand", int.class);
+        } catch (Exception ignored) {
+        }
+    }
+
+    @EventHandler
+    public void onServerConnect(ServerConnectEvent event) {
+        // Ignore if it doesn't exist (Like BungeeCord 1.8)
+        if (setMainHand == null)
+            return;
+
+        UserConnection user = Via.getManager().getConnection(event.getPlayer().getUniqueId());
+        if(user == null) return;
+        
+        try {
+            if (user.get(ProtocolInfo.class).getPipeline().contains(Protocol1_9TO1_8.class)) {
+                Object settings = getSettings.invoke(event.getPlayer());
+                setMainHand.invoke(settings, user.get(EntityTracker.class).getMainHand());
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+}

bungee/src/main/java/us/myles/ViaVersion/bungee/listeners/UpdateListener.java

@@ -0,0 +1,18 @@
+package us.myles.ViaVersion.bungee.listeners;
+
+import net.md_5.bungee.api.event.PostLoginEvent;
+import net.md_5.bungee.api.plugin.Listener;
+import net.md_5.bungee.event.EventHandler;
+import us.myles.ViaVersion.api.Via;
+import us.myles.ViaVersion.update.UpdateUtil;
+
+public class UpdateListener implements Listener {
+
+    @EventHandler
+    public void onJoin(PostLoginEvent e) {
+        if (e.getPlayer().hasPermission("viaversion.update")
+                && Via.getConfig().isCheckForUpdates()) {
+            UpdateUtil.sendUpdateMessage(e.getPlayer().getUniqueId());
+        }
+    }
+}

bungee/src/main/java/us/myles/ViaVersion/bungee/platform/BungeeBossBar.java

@@ -0,0 +1,34 @@
+package us.myles.ViaVersion.bungee.platform;
+
+import net.md_5.bungee.api.connection.ProxiedPlayer;
+import us.myles.ViaVersion.api.boss.BossBar;
+import us.myles.ViaVersion.api.boss.BossColor;
+import us.myles.ViaVersion.api.boss.BossStyle;
+import us.myles.ViaVersion.boss.CommonBoss;
+
+public class BungeeBossBar extends CommonBoss<ProxiedPlayer> {
+
+    public BungeeBossBar(String title, float health, BossColor color, BossStyle style) {
+        super(title, health, color, style);
+    }
+
+
+    @Override
+    public BossBar addPlayer(ProxiedPlayer player) {
+        addPlayer(player.getUniqueId());
+        return this;
+    }
+
+    @Override
+    public BossBar addPlayers(ProxiedPlayer... players) {
+        for (ProxiedPlayer p : players)
+            addPlayer(p);
+        return this;
+    }
+
+    @Override
+    public BossBar removePlayer(ProxiedPlayer player) {
+        removePlayer(player.getUniqueId());
+        return this;
+    }
+}

bungee/src/main/java/us/myles/ViaVersion/bungee/platform/BungeeConfigAPI.java

@@ -0,0 +1,237 @@
+package us.myles.ViaVersion.bungee.platform;
+
+import us.myles.ViaVersion.api.ViaVersionConfig;
+import us.myles.ViaVersion.api.protocol.ProtocolVersion;
+import us.myles.ViaVersion.bungee.providers.BungeeVersionProvider;
+import us.myles.ViaVersion.util.Config;
+
+import java.io.File;
+import java.util.*;
+
+public class BungeeConfigAPI extends Config implements ViaVersionConfig {
+    private static List<String> UNSUPPORTED = Arrays.asList("nms-player-ticking", "item-cache", "anti-xray-patch");
+
+    public BungeeConfigAPI(File configFile) {
+        super(new File(configFile, "config.yml"));
+    }
+
+    @Override
+    protected void handleConfig(Map<String, Object> config) {
+        // Parse servers
+        Map<String, Object> servers;
+        if (!(config.get("bungee-servers") instanceof Map)) {
+            servers = new HashMap<>();
+        } else {
+            servers = (Map) config.get("bungee-servers");
+        }
+        // Convert any bad Protocol Ids
+        for (Map.Entry<String, Object> entry : new HashSet<>(servers.entrySet())) {
+            if (!(entry.getValue() instanceof Integer)) {
+                if (entry.getValue() instanceof String) {
+                    ProtocolVersion found = ProtocolVersion.getClosest((String) entry.getValue());
+                    if (found != null) {
+                        servers.put(entry.getKey(), found.getId());
+                    } else {
+                        servers.remove(entry.getKey()); // Remove!
+                    }
+                } else {
+                    servers.remove(entry.getKey()); // Remove!
+                }
+            }
+        }
+        // Ensure default exists
+        if (!servers.containsKey("default")) {
+            servers.put("default", BungeeVersionProvider.getLowestSupportedVersion());
+        }
+        // Put back
+        config.put("bungee-servers", servers);
+    }
+
+    @Override
+    public List<String> getUnsupportedOptions() {
+        return UNSUPPORTED;
+    }
+
+    public boolean isCheckForUpdates() {
+        return getBoolean("checkforupdates", true);
+    }
+
+    @Override
+    public boolean isPreventCollision() {
+        return getBoolean("prevent-collision", true);
+    }
+
+    @Override
+    public boolean isNewEffectIndicator() {
+        return getBoolean("use-new-effect-indicator", true);
+    }
+
+    @Override
+    public boolean isShowNewDeathMessages() {
+        return getBoolean("use-new-deathmessages", true);
+    }
+
+    @Override
+    public boolean isSuppressMetadataErrors() {
+        return getBoolean("suppress-metadata-errors", false);
+    }
+
+    @Override
+    public boolean isShieldBlocking() {
+        return getBoolean("shield-blocking", true);
+    }
+
+    @Override
+    public boolean isHologramPatch() {
+        return getBoolean("hologram-patch", false);
+    }
+
+    @Override
+    public boolean isPistonAnimationPatch() {
+        return getBoolean("piston-animation-patch", false);
+    }
+
+    @Override
+    public boolean isBossbarPatch() {
+        return getBoolean("bossbar-patch", true);
+    }
+
+    @Override
+    public boolean isBossbarAntiflicker() {
+        return getBoolean("bossbar-anti-flicker", false);
+    }
+
+    @Override
+    public boolean isUnknownEntitiesSuppressed() {
+        return false;
+    }
+
+    @Override
+    public double getHologramYOffset() {
+        return getDouble("hologram-y", -0.96D);
+    }
+
+    @Override
+    public boolean isBlockBreakPatch() {
+        return false;
+    }
+
+    @Override
+    public int getMaxPPS() {
+        return getInt("max-pps", 800);
+    }
+
+    @Override
+    public String getMaxPPSKickMessage() {
+        return getString("max-pps-kick-msg", "Sending packets too fast? lag?");
+    }
+
+    @Override
+    public int getTrackingPeriod() {
+        return getInt("tracking-period", 6);
+    }
+
+    @Override
+    public int getWarningPPS() {
+        return getInt("tracking-warning-pps", 120);
+    }
+
+    @Override
+    public int getMaxWarnings() {
+        return getInt("tracking-max-warnings", 3);
+    }
+
+    @Override
+    public String getMaxWarningsKickMessage() {
+        return getString("tracking-max-kick-msg", "You are sending too many packets, :(");
+    }
+
+    @Override
+    public boolean isAntiXRay() {
+        return false;
+    }
+
+    @Override
+    public boolean isSendSupportedVersions() {
+        return getBoolean("send-supported-versions", false);
+    }
+
+    @Override
+    public boolean isStimulatePlayerTick() {
+        return getBoolean("simulate-pt", true);
+    }
+
+    @Override
+    public boolean isItemCache() {
+        return false;
+    }
+
+    @Override
+    public boolean isNMSPlayerTicking() {
+        return false;
+    }
+
+    @Override
+    public boolean isReplacePistons() {
+        return getBoolean("replace-pistons", false);
+    }
+
+    @Override
+    public int getPistonReplacementId() {
+        return getInt("replacement-piston-id", 0);
+    }
+
+    public boolean isAutoTeam() {
+        // Collision has to be enabled first
+        return isPreventCollision() && getBoolean("auto-team", true);
+    }
+
+    @Override
+    public boolean isForceJsonTransform() {
+        return getBoolean("force-json-transform", false);
+    }
+
+    @Override
+    public List<Integer> getBlockedProtocols() {
+        return getIntegerList("block-protocols");
+    }
+
+    @Override
+    public String getBlockedDisconnectMsg() {
+        return getString("block-disconnect-msg", "You are using an unsupported Minecraft version!");
+    }
+
+    @Override
+    public String getReloadDisconnectMsg() {
+        return getString("reload-disconnect-msg", "Server reload, please rejoin!");
+    }
+
+    /**
+     * What is the interval for checking servers via ping
+     * -1 for disabled
+     *
+     * @return Ping interval in seconds
+     */
+    public int getBungeePingInterval() {
+        return getInt("bungee-ping-interval", 60);
+    }
+
+    /**
+     * Should the bungee ping be saved to the config on change.
+     *
+     * @return True if it should save
+     */
+    public boolean isBungeePingSave() {
+        return getBoolean("bungee-ping-save", true);
+    }
+
+    /**
+     * Get the listed server protocols in the config.
+     * default will be listed as default.
+     *
+     * @return Map of String, Integer
+     */
+    public Map<String, Integer> getBungeeServerProtocols() {
+        return get("bungee-servers", Map.class, new HashMap<>());
+    }
+}

bungee/src/main/java/us/myles/ViaVersion/bungee/platform/BungeeTaskId.java

@@ -0,0 +1,11 @@
+package us.myles.ViaVersion.bungee.platform;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import us.myles.ViaVersion.api.platform.TaskId;
+
+@Getter
+@AllArgsConstructor
+public class BungeeTaskId implements TaskId {
+    private Integer object;
+}

bungee/src/main/java/us/myles/ViaVersion/bungee/platform/BungeeViaAPI.java

@@ -0,0 +1,89 @@
+package us.myles.ViaVersion.bungee.platform;
+
+import io.netty.buffer.ByteBuf;
+import lombok.NonNull;
+import net.md_5.bungee.api.config.ServerInfo;
+import net.md_5.bungee.api.connection.ProxiedPlayer;
+import us.myles.ViaVersion.api.Via;
+import us.myles.ViaVersion.api.ViaAPI;
+import us.myles.ViaVersion.api.boss.BossBar;
+import us.myles.ViaVersion.api.boss.BossColor;
+import us.myles.ViaVersion.api.boss.BossStyle;
+import us.myles.ViaVersion.api.data.UserConnection;
+import us.myles.ViaVersion.api.protocol.ProtocolRegistry;
+import us.myles.ViaVersion.bungee.service.ProtocolDetectorService;
+import us.myles.ViaVersion.protocols.base.ProtocolInfo;
+
+import java.util.Map;
+import java.util.SortedSet;
+import java.util.TreeSet;
+import java.util.UUID;
+
+public class BungeeViaAPI implements ViaAPI<ProxiedPlayer> {
+    @Override
+    public int getPlayerVersion(@NonNull ProxiedPlayer player) {
+        if (!isPorted(player.getUniqueId()))
+            return ProtocolRegistry.SERVER_PROTOCOL;
+        return getPortedPlayers().get(player.getUniqueId()).get(ProtocolInfo.class).getProtocolVersion();
+    }
+
+    @Override
+    public int getPlayerVersion(@NonNull UUID uuid) {
+        if (!isPorted(uuid))
+            return ProtocolRegistry.SERVER_PROTOCOL;
+        return getPortedPlayers().get(uuid).get(ProtocolInfo.class).getProtocolVersion();
+    }
+
+    @Override
+    public boolean isPorted(UUID playerUUID) {
+        return getPortedPlayers().containsKey(playerUUID);
+    }
+
+    @Override
+    public String getVersion() {
+        return Via.getPlatform().getPluginVersion();
+    }
+
+    @Override
+    public void sendRawPacket(UUID uuid, ByteBuf packet) throws IllegalArgumentException {
+        if (!isPorted(uuid)) throw new IllegalArgumentException("This player is not controlled by ViaVersion!");
+        UserConnection ci = getPortedPlayers().get(uuid);
+        ci.sendRawPacket(packet);
+    }
+
+    @Override
+    public void sendRawPacket(ProxiedPlayer player, ByteBuf packet) throws IllegalArgumentException {
+        sendRawPacket(player.getUniqueId(), packet);
+    }
+
+    @Override
+    public BossBar createBossBar(String title, BossColor color, BossStyle style) {
+        return new BungeeBossBar(title, 1F, color, style);
+    }
+
+    @Override
+    public BossBar createBossBar(String title, float health, BossColor color, BossStyle style) {
+        return new BungeeBossBar(title, health, color, style);
+    }
+
+    @Override
+    public SortedSet<Integer> getSupportedVersions() {
+        SortedSet<Integer> outputSet = new TreeSet<>(ProtocolRegistry.getSupportedVersions());
+        outputSet.removeAll(Via.getPlatform().getConf().getBlockedProtocols());
+
+        return outputSet;
+    }
+
+    public Map<UUID, UserConnection> getPortedPlayers() {
+        return Via.getManager().getPortedPlayers();
+    }
+
+    /**
+     * Forces ViaVersion to probe a server
+     *
+     * @param serverInfo The serverinfo to probe
+     */
+    public void probeServer(ServerInfo serverInfo) {
+        ProtocolDetectorService.probeServer(serverInfo);
+    }
+}

bungee/src/main/java/us/myles/ViaVersion/bungee/platform/BungeeViaInjector.java

@@ -0,0 +1,59 @@
+package us.myles.ViaVersion.bungee.platform;
+
+import io.netty.channel.Channel;
+import io.netty.channel.ChannelInitializer;
+import us.myles.ViaVersion.api.Via;
+import us.myles.ViaVersion.api.platform.ViaInjector;
+import us.myles.ViaVersion.bungee.handlers.BungeeChannelInitializer;
+import us.myles.ViaVersion.util.ReflectionUtil;
+
+import java.lang.reflect.Field;
+import java.lang.reflect.Modifier;
+import java.util.List;
+
+public class BungeeViaInjector implements ViaInjector {
+    @Override
+    public void inject() throws Exception {
+        try {
+            try {
+
+                Class<?> pipelineUtils = Class.forName("net.md_5.bungee.netty.PipelineUtils");
+                Field field = pipelineUtils.getDeclaredField("SERVER_CHILD");
+                field.setAccessible(true);
+                // Remove any final stuff
+                Field modifiersField = Field.class.getDeclaredField("modifiers");
+                modifiersField.setAccessible(true);
+                modifiersField.setInt(field, field.getModifiers() & ~Modifier.FINAL);
+
+                BungeeChannelInitializer newInit = new BungeeChannelInitializer((ChannelInitializer<Channel>) field.get(null));
+                field.set(null, newInit);
+            } catch (NoSuchFieldException e) {
+                throw new Exception("Unable to find core component 'childHandler', please check your plugins. issue: ");
+            }
+        } catch (Exception e) {
+            Via.getPlatform().getLogger().severe("Unable to inject ViaVersion, please post these details on our GitHub and ensure you're using a compatible server version.");
+            throw e;
+        }
+    }
+
+    @Override
+    public void uninject() {
+        Via.getPlatform().getLogger().severe("ViaVersion cannot remove itself from Bungee without a reboot!");
+    }
+
+
+    @Override
+    public int getServerProtocolVersion() throws Exception {
+        return (int) ReflectionUtil.getStatic(Class.forName("net.md_5.bungee.protocol.ProtocolConstants"), "SUPPORTED_VERSION_IDS", List.class).get(0);
+    }
+
+    @Override
+    public String getEncoderName() {
+        return "via-encoder";
+    }
+
+    @Override
+    public String getDecoderName() {
+        return "via-decoder";
+    }
+}

bungee/src/main/java/us/myles/ViaVersion/bungee/platform/BungeeViaLoader.java

@@ -0,0 +1,43 @@
+package us.myles.ViaVersion.bungee.platform;
+
+import lombok.AllArgsConstructor;
+import net.md_5.bungee.api.ProxyServer;
+import us.myles.ViaVersion.BungeePlugin;
+import us.myles.ViaVersion.api.Via;
+import us.myles.ViaVersion.api.platform.ViaPlatformLoader;
+import us.myles.ViaVersion.bungee.handlers.BungeeServerHandler;
+import us.myles.ViaVersion.bungee.listeners.ElytraPatch;
+import us.myles.ViaVersion.bungee.listeners.MainHandPatch;
+import us.myles.ViaVersion.bungee.listeners.UpdateListener;
+import us.myles.ViaVersion.bungee.providers.BungeeEntityIdProvider;
+import us.myles.ViaVersion.bungee.providers.BungeeMovementTransmitter;
+import us.myles.ViaVersion.bungee.providers.BungeeVersionProvider;
+import us.myles.ViaVersion.bungee.service.ProtocolDetectorService;
+import us.myles.ViaVersion.protocols.base.VersionProvider;
+import us.myles.ViaVersion.protocols.protocol1_9to1_8.providers.EntityIdProvider;
+import us.myles.ViaVersion.protocols.protocol1_9to1_8.providers.MovementTransmitterProvider;
+
+import java.util.concurrent.TimeUnit;
+
+@AllArgsConstructor
+public class BungeeViaLoader implements ViaPlatformLoader {
+    private BungeePlugin plugin;
+
+    @Override
+    public void load() {
+        // Listeners
+        ProxyServer.getInstance().getPluginManager().registerListener(plugin, plugin);
+        ProxyServer.getInstance().getPluginManager().registerListener(plugin, new UpdateListener());
+        ProxyServer.getInstance().getPluginManager().registerListener(plugin, new BungeeServerHandler());
+        ProxyServer.getInstance().getPluginManager().registerListener(plugin, new MainHandPatch());
+        ProxyServer.getInstance().getPluginManager().registerListener(plugin, new ElytraPatch());
+
+        // Providers
+        Via.getManager().getProviders().use(MovementTransmitterProvider.class, new BungeeMovementTransmitter());
+        Via.getManager().getProviders().use(VersionProvider.class, new BungeeVersionProvider());
+        Via.getManager().getProviders().use(EntityIdProvider.class, new BungeeEntityIdProvider());
+        if (plugin.getConf().getBungeePingInterval() > 0) {
+            plugin.getProxy().getScheduler().schedule(plugin, new ProtocolDetectorService(plugin), 0, plugin.getConf().getBungeePingInterval(), TimeUnit.SECONDS);
+        }
+    }
+}

bungee/src/main/java/us/myles/ViaVersion/bungee/providers/BungeeEntityIdProvider.java

@@ -0,0 +1,28 @@
+package us.myles.ViaVersion.bungee.providers;
+
+import net.md_5.bungee.api.connection.ProxiedPlayer;
+import us.myles.ViaVersion.api.data.UserConnection;
+import us.myles.ViaVersion.bungee.storage.BungeeStorage;
+import us.myles.ViaVersion.protocols.protocol1_9to1_8.providers.EntityIdProvider;
+
+import java.lang.reflect.Method;
+
+public class BungeeEntityIdProvider extends EntityIdProvider {
+    private static Method getClientEntityId;
+
+    static {
+        try {
+            getClientEntityId = Class.forName("net.md_5.bungee.UserConnection").getDeclaredMethod("getClientEntityId");
+        } catch (NoSuchMethodException | ClassNotFoundException e) {
+            e.printStackTrace();
+        }
+    }
+
+    @Override
+    public int getEntityId(UserConnection user) throws Exception {
+        BungeeStorage storage = user.get(BungeeStorage.class);
+        ProxiedPlayer player = storage.getPlayer();
+
+        return (int) getClientEntityId.invoke(player);
+    }
+}

bungee/src/main/java/us/myles/ViaVersion/bungee/providers/BungeeMovementTransmitter.java

@@ -0,0 +1,34 @@
+package us.myles.ViaVersion.bungee.providers;
+
+import us.myles.ViaVersion.api.PacketWrapper;
+import us.myles.ViaVersion.api.data.UserConnection;
+import us.myles.ViaVersion.api.type.Type;
+import us.myles.ViaVersion.packets.State;
+import us.myles.ViaVersion.protocols.base.ProtocolInfo;
+import us.myles.ViaVersion.protocols.protocol1_9to1_8.providers.MovementTransmitterProvider;
+import us.myles.ViaVersion.protocols.protocol1_9to1_8.storage.MovementTracker;
+
+public class BungeeMovementTransmitter extends MovementTransmitterProvider {
+    @Override
+    public Object getFlyingPacket() {
+        return null;
+    }
+
+    @Override
+    public Object getGroundPacket() {
+        return null;
+    }
+
+    public void sendPlayer(UserConnection userConnection) {
+        if (userConnection.get(ProtocolInfo.class).getState() == State.PLAY) {
+            PacketWrapper wrapper = new PacketWrapper(0x03, null, userConnection);
+            wrapper.write(Type.BOOLEAN, userConnection.get(MovementTracker.class).isGround());
+            try {
+                wrapper.sendToServer();
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+            // PlayerPackets will increment idle
+        }
+    }
+}

bungee/src/main/java/us/myles/ViaVersion/bungee/providers/BungeeVersionProvider.java

@@ -0,0 +1,66 @@
+package us.myles.ViaVersion.bungee.providers;
+
+import com.google.common.collect.Lists;
+import net.md_5.bungee.api.ProxyServer;
+import us.myles.ViaVersion.api.Via;
+import us.myles.ViaVersion.api.data.UserConnection;
+import us.myles.ViaVersion.protocols.base.ProtocolInfo;
+import us.myles.ViaVersion.protocols.base.VersionProvider;
+import us.myles.ViaVersion.util.ReflectionUtil;
+
+import java.util.List;
+
+public class BungeeVersionProvider extends VersionProvider {
+    private static Class<?> ref;
+
+    static {
+        try {
+            ref = Class.forName("net.md_5.bungee.protocol.ProtocolConstants");
+        } catch (Exception e) {
+            Via.getPlatform().getLogger().severe("Could not detect the ProtocolConstants class");
+            e.printStackTrace();
+        }
+    }
+
+    @Override
+    public int getServerProtocol(UserConnection user) throws Exception {
+        if (ref == null)
+            return super.getServerProtocol(user);
+        // TODO Have one constant list forever until restart? (Might limit plugins if they change this)
+        List<Integer> list = ReflectionUtil.getStatic(ref, "SUPPORTED_VERSION_IDS", List.class);
+
+        ProtocolInfo info = user.get(ProtocolInfo.class);
+
+        // Bungee supports it
+        if (list.contains(info.getProtocolVersion()))
+            return info.getProtocolVersion();
+
+        // Older than bungee supports, get the lowest version
+        if (info.getProtocolVersion() < list.get(0)) {
+            return getLowestSupportedVersion();
+        }
+
+        // Loop through all protocols to get the closest protocol id that bungee supports
+        for (Integer protocol : Lists.reverse(list)) {
+            if (info.getProtocolVersion() > protocol)
+                return protocol;
+        }
+
+        Via.getPlatform().getLogger().severe("Panic, no protocol id found for " + info.getProtocolVersion());
+        return info.getProtocolVersion();
+    }
+
+    public static int getLowestSupportedVersion() {
+        List<Integer> list;
+        try {
+            list = ReflectionUtil.getStatic(ref, "SUPPORTED_VERSION_IDS", List.class);
+            return list.get(0);
+        } catch (NoSuchFieldException e) {
+            e.printStackTrace();
+        } catch (IllegalAccessException e) {
+            e.printStackTrace();
+        }
+        // Fallback
+        return ProxyServer.getInstance().getProtocolVersion();
+    }
+}

bungee/src/main/java/us/myles/ViaVersion/bungee/service/ProtocolDetectorService.java

@@ -0,0 +1,80 @@
+package us.myles.ViaVersion.bungee.service;
+
+import lombok.Getter;
+import net.md_5.bungee.api.Callback;
+import net.md_5.bungee.api.ServerPing;
+import net.md_5.bungee.api.config.ServerInfo;
+import us.myles.ViaVersion.BungeePlugin;
+import us.myles.ViaVersion.api.Via;
+import us.myles.ViaVersion.bungee.platform.BungeeConfigAPI;
+import us.myles.ViaVersion.bungee.providers.BungeeVersionProvider;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+
+public class ProtocolDetectorService implements Runnable {
+    private static final Map<String, Integer> detectedProtocolIds = new ConcurrentHashMap<>();
+    private BungeePlugin plugin;
+    @Getter
+    private static ProtocolDetectorService instance;
+
+    public ProtocolDetectorService(BungeePlugin plugin) {
+        this.plugin = plugin;
+        instance = this;
+    }
+
+    public static Integer getProtocolId(String serverName) {
+        // Step 1. Check Config
+        Map<String, Integer> servers = ((BungeeConfigAPI) Via.getConfig()).getBungeeServerProtocols();
+        if (servers.containsKey(serverName)) {
+            return servers.get(serverName);
+        }
+        // Step 2. Check Detected
+        if (detectedProtocolIds.containsKey(serverName)) {
+            return detectedProtocolIds.get(serverName);
+        }
+        // Step 3. Use Default
+        if (servers.containsKey("default")) {
+            return servers.get("default");
+        }
+        // Step 4: Use bungee lowest supported... *cries*
+        return BungeeVersionProvider.getLowestSupportedVersion();
+    }
+
+    @Override
+    public void run() {
+        for (final Map.Entry<String, ServerInfo> lists : plugin.getProxy().getServers().entrySet()) {
+            probeServer(lists.getValue());
+        }
+    }
+
+    public static void probeServer(final ServerInfo serverInfo) {
+        final String key = serverInfo.getName();
+        serverInfo.ping(new Callback<ServerPing>() {
+            @Override
+            public void done(ServerPing serverPing, Throwable throwable) {
+                if (throwable == null) {
+                    detectedProtocolIds.put(key, serverPing.getVersion().getProtocol());
+                    if (((BungeeConfigAPI) Via.getConfig()).isBungeePingSave()) {
+                        Map<String, Integer> servers = ((BungeeConfigAPI) Via.getConfig()).getBungeeServerProtocols();
+                        if (servers.containsKey(key)) {
+                            if (servers.get(key) == serverPing.getVersion().getProtocol()) {
+                                return;
+                            }
+                        }
+                        // Save Server
+                        servers.put(key, serverPing.getVersion().getProtocol());
+                        // Save
+                        Via.getPlatform().getConfigurationProvider().saveConfig();
+                    }
+                }
+            }
+        });
+    }
+
+    public static Map<String, Integer> getDetectedIds() {
+        return new HashMap<>(detectedProtocolIds);
+    }
+
+}

bungee/src/main/java/us/myles/ViaVersion/bungee/storage/BungeeStorage.java

@@ -0,0 +1,20 @@
+package us.myles.ViaVersion.bungee.storage;
+
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+import net.md_5.bungee.api.connection.ProxiedPlayer;
+import us.myles.ViaVersion.api.data.StoredObject;
+import us.myles.ViaVersion.api.data.UserConnection;
+
+@Data
+@EqualsAndHashCode(callSuper = true)
+public class BungeeStorage extends StoredObject {
+    private ProxiedPlayer player;
+    private String currentServer;
+
+    public BungeeStorage(UserConnection user, ProxiedPlayer player) {
+        super(user);
+        this.player = player;
+        this.currentServer = "";
+    }
+}

bungee/src/main/java/us/myles/ViaVersion/bungee/util/BungeePipelineUtil.java

@@ -0,0 +1,70 @@
+package us.myles.ViaVersion.bungee.util;
+
+import io.netty.buffer.ByteBuf;
+import io.netty.channel.ChannelHandlerContext;
+import io.netty.handler.codec.MessageToByteEncoder;
+import io.netty.handler.codec.MessageToMessageDecoder;
+import us.myles.ViaVersion.api.Via;
+
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.util.ArrayList;
+import java.util.List;
+
+public class BungeePipelineUtil {
+    private static Method DECODE_METHOD;
+    private static Method ENCODE_METHOD;
+
+    static {
+        try {
+            DECODE_METHOD = MessageToMessageDecoder.class.getDeclaredMethod("decode", ChannelHandlerContext.class, Object.class, List.class);
+            DECODE_METHOD.setAccessible(true);
+        } catch (NoSuchMethodException e) {
+            e.printStackTrace();
+        }
+        try {
+            ENCODE_METHOD = MessageToByteEncoder.class.getDeclaredMethod("encode", ChannelHandlerContext.class, Object.class, ByteBuf.class);
+            ENCODE_METHOD.setAccessible(true);
+        } catch (NoSuchMethodException e) {
+            e.printStackTrace();
+        }
+    }
+
+    public static List<Object> callDecode(MessageToMessageDecoder decoder, ChannelHandlerContext ctx, ByteBuf input) throws InvocationTargetException {
+        List<Object> output = new ArrayList<>();
+        try {
+            BungeePipelineUtil.DECODE_METHOD.invoke(decoder, ctx, input, output);
+        } catch (IllegalAccessException e) {
+            e.printStackTrace();
+        }
+        return output;
+    }
+
+    public static ByteBuf callEncode(MessageToByteEncoder encoder, ChannelHandlerContext ctx, ByteBuf input) throws InvocationTargetException {
+        ByteBuf output = ctx.alloc().buffer();
+        try {
+            BungeePipelineUtil.ENCODE_METHOD.invoke(encoder, ctx, input, output);
+        } catch (IllegalAccessException e) {
+            e.printStackTrace();
+        }
+        return output;
+    }
+
+    public static ByteBuf decompress(ChannelHandlerContext ctx, ByteBuf bytebuf) {
+        try {
+            return (ByteBuf) callDecode((MessageToMessageDecoder) ctx.pipeline().get("decompress"), ctx.pipeline().context("decompress"), bytebuf).get(0);
+        } catch (InvocationTargetException e) {
+            e.printStackTrace();
+            return ctx.alloc().buffer();
+        }
+    }
+
+    public static ByteBuf compress(ChannelHandlerContext ctx, ByteBuf bytebuf) {
+        try {
+            return callEncode((MessageToByteEncoder) ctx.pipeline().get("compress"), ctx.pipeline().context("compress"), bytebuf);
+        } catch (InvocationTargetException e) {
+            e.printStackTrace();
+            return ctx.alloc().buffer();
+        }
+    }
+}

bungee/src/main/resources/bungee.yml

@@ -0,0 +1,5 @@
+name: ViaVersion
+main: us.myles.ViaVersion.BungeePlugin
+description: ${project.description}
+author: _MylesC, Matsv
+version: ${project.version}

circle.yml

@@ -1,6 +1,6 @@
 machine:
   java:
-    version: oraclejdk7
+    version: oraclejdk8
 general:
   artifacts:
     - "target/*.jar"

common/pom.xml

@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <parent>
+        <artifactId>viaversion-parent</artifactId>
+        <groupId>us.myles</groupId>
+        <version>1.0.2</version>
+    </parent>
+
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>viaversion-common</artifactId>
+    <dependencies>
+        <!-- Snake YAML -->
+
+        <dependency>
+            <groupId>org.yaml</groupId>
+            <artifactId>snakeyaml</artifactId>
+            <version>1.18-SNAPSHOT</version>
+            <scope>provided</scope>
+        </dependency>
+    </dependencies>
+</project>

common/src/main/java/us/myles/ViaVersion/ViaManager.java

@@ -0,0 +1,117 @@
+package us.myles.ViaVersion;
+
+import lombok.Builder;
+import lombok.Getter;
+import lombok.Setter;
+import us.myles.ViaVersion.api.data.UserConnection;
+import us.myles.ViaVersion.api.platform.ViaInjector;
+import us.myles.ViaVersion.api.platform.ViaPlatform;
+import us.myles.ViaVersion.api.platform.ViaPlatformLoader;
+import us.myles.ViaVersion.api.platform.providers.ViaProviders;
+import us.myles.ViaVersion.api.protocol.ProtocolRegistry;
+import us.myles.ViaVersion.api.protocol.ProtocolVersion;
+import us.myles.ViaVersion.commands.ViaCommandHandler;
+import us.myles.ViaVersion.protocols.base.ProtocolInfo;
+import us.myles.ViaVersion.update.UpdateUtil;
+
+import java.util.Map;
+import java.util.UUID;
+import java.util.concurrent.ConcurrentHashMap;
+
+@Getter
+public class ViaManager {
+    private final Map<UUID, UserConnection> portedPlayers = new ConcurrentHashMap<>();
+    private ViaPlatform platform;
+    private ViaProviders providers = new ViaProviders();
+    @Setter
+    private boolean debug = false;
+    // Internals
+    private ViaInjector injector;
+    private ViaCommandHandler commandHandler;
+    private ViaPlatformLoader loader;
+
+    @Builder
+    public ViaManager(ViaPlatform platform, ViaInjector injector, ViaCommandHandler commandHandler, ViaPlatformLoader loader) {
+        this.platform = platform;
+        this.injector = injector;
+        this.commandHandler = commandHandler;
+        this.loader = loader;
+    }
+
+    public void init() {
+        if (System.getProperty("ViaVersion") != null) {
+            // Reload?
+            platform.onReload();
+        }
+        // Check for updates
+        if (platform.getConf().isCheckForUpdates())
+            UpdateUtil.sendUpdateMessage();
+        // Inject
+        try {
+            injector.inject();
+        } catch (Exception e) {
+            getPlatform().getLogger().severe("ViaVersion failed to inject:");
+            e.printStackTrace();
+            return;
+        }
+        // Mark as injected
+        System.setProperty("ViaVersion", getPlatform().getPluginVersion());
+        // If successful
+        platform.runSync(new Runnable() {
+            @Override
+            public void run() {
+                onServerLoaded();
+            }
+        });
+
+    }
+
+    public void onServerLoaded() {
+        // Load Server Protocol
+        try {
+            ProtocolRegistry.SERVER_PROTOCOL = injector.getServerProtocolVersion();
+        } catch (Exception e) {
+            getPlatform().getLogger().severe("ViaVersion failed to get the server protocol!");
+            e.printStackTrace();
+        }
+        // Check if there are any pipes to this version
+        if (ProtocolRegistry.SERVER_PROTOCOL != -1) {
+            getPlatform().getLogger().info("ViaVersion detected server version: " + ProtocolVersion.getProtocol(ProtocolRegistry.SERVER_PROTOCOL));
+            if (!ProtocolRegistry.isWorkingPipe()) {
+                getPlatform().getLogger().warning("ViaVersion does not have any compatible versions for this server version, please read our resource page carefully.");
+            }
+        }
+        // Load Listeners / Tasks
+        ProtocolRegistry.onServerLoaded();
+
+        // Load Platform
+        loader.load();
+
+        // Refresh Versions
+        ProtocolRegistry.refreshVersions();
+    }
+
+    public void destroy() {
+        // Uninject
+        getPlatform().getLogger().info("ViaVersion is disabling, if this is a reload and you experience issues consider rebooting.");
+        try {
+            injector.uninject();
+        } catch (Exception e) {
+            getPlatform().getLogger().severe("ViaVersion failed to uninject:");
+            e.printStackTrace();
+        }
+    }
+
+    public void addPortedClient(UserConnection info) {
+        portedPlayers.put(info.get(ProtocolInfo.class).getUuid(), info);
+    }
+
+    public void removePortedClient(UUID clientID) {
+        portedPlayers.remove(clientID);
+    }
+
+    public UserConnection getConnection(UUID playerUUID) {
+        return portedPlayers.get(playerUUID);
+    }
+
+}

common/src/main/java/us/myles/ViaVersion/api/PacketWrapper.java

@@ -12,11 +12,9 @@ import us.myles.ViaVersion.api.remapper.ValueCreator;
 import us.myles.ViaVersion.api.type.Type;
 import us.myles.ViaVersion.api.type.TypeConverter;
 import us.myles.ViaVersion.exception.InformativeException;
-import us.myles.ViaVersion.handlers.ViaDecodeHandler;
 import us.myles.ViaVersion.packets.Direction;
 import us.myles.ViaVersion.packets.State;
 import us.myles.ViaVersion.protocols.base.ProtocolInfo;
-import us.myles.ViaVersion.util.PipelineUtil;
 
 import java.io.IOException;
 import java.util.ArrayList;
@@ -25,14 +23,16 @@ import java.util.LinkedList;
 import java.util.List;
 
 public class PacketWrapper {
+    public static final int PASSTHROUGH_ID = 1000;
+
     private final ByteBuf inputBuffer;
     private final UserConnection userConnection;
     private boolean send = true;
     @Setter
     @Getter
     private int id = -1;
-    private LinkedList<Pair<Type, Object>> readableObjects = new LinkedList<>();
-    private List<Pair<Type, Object>> packetValues = new ArrayList<>();
+    private final LinkedList<Pair<Type, Object>> readableObjects = new LinkedList<>();
+    private final List<Pair<Type, Object>> packetValues = new ArrayList<>();
 
     public PacketWrapper(int packetID, ByteBuf inputBuffer, UserConnection userConnection) {
         this.id = packetID;
@@ -176,7 +176,7 @@ public class PacketWrapper {
                 if (type instanceof TypeConverter) {
                     value = (T) ((TypeConverter) type).from(value);
                 } else {
-                    System.out.println("Possible type mismatch: " + value.getClass().getName() + " -> " + type.getOutputClass());
+                    Via.getPlatform().getLogger().warning("Possible type mismatch: " + value.getClass().getName() + " -> " + type.getOutputClass());
                 }
             }
         }
@@ -237,7 +237,7 @@ public class PacketWrapper {
                         if (packetValue.getKey() instanceof TypeConverter) {
                             value = ((TypeConverter) packetValue.getKey()).from(value);
                         } else {
-                            System.out.println("Possible type mismatch: " + value.getClass().getName() + " -> " + packetValue.getKey().getOutputClass());
+                            Via.getPlatform().getLogger().warning("Possible type mismatch: " + value.getClass().getName() + " -> " + packetValue.getKey().getOutputClass());
                         }
                     }
                 }
@@ -282,31 +282,58 @@ public class PacketWrapper {
      * @param skipCurrentPipeline - Skip the current pipeline
      * @throws Exception if it fails to write
      */
-    public ChannelFuture send(Class<? extends Protocol> packetProtocol, boolean skipCurrentPipeline) throws Exception {
+    public void send(Class<? extends Protocol> packetProtocol, boolean skipCurrentPipeline) throws Exception {
+        send(packetProtocol, skipCurrentPipeline, false);
+    }
+
+    /**
+     * Send this packet to the associated user.
+     * Be careful not to send packets twice.
+     * (Sends it after current)
+     *
+     * @param packetProtocol      - The protocol version of the packet.
+     * @param skipCurrentPipeline - Skip the current pipeline
+     * @param currentThread       - Run in the same thread
+     * @throws Exception if it fails to write
+     */
+    public void send(Class<? extends Protocol> packetProtocol, boolean skipCurrentPipeline, boolean currentThread) throws Exception {
         if (!isCancelled()) {
-            // Apply current pipeline
-            List<Protocol> protocols = new ArrayList<>(user().get(ProtocolInfo.class).getPipeline().pipes());
-            // Other way if outgoing
-            Collections.reverse(protocols);
-            int index = 0;
-            for (int i = 0; i < protocols.size(); i++) {
-                if (protocols.get(i).getClass().equals(packetProtocol)) {
-                    index = skipCurrentPipeline ? (i + 1) : (i);
-                    break;
-                }
-            }
-
-            // Reset reader before we start
-            resetReader();
-
-            // Apply other protocols
-            apply(Direction.OUTGOING, user().get(ProtocolInfo.class).getState(), index, protocols);
-            // Send
-            ByteBuf output = inputBuffer == null ? Unpooled.buffer() : inputBuffer.alloc().buffer();
-            writeToBuffer(output);
-            return user().sendRawPacketFuture(output);
+            ByteBuf output = constructPacket(packetProtocol, skipCurrentPipeline);
+            user().sendRawPacket(output, currentThread);
         }
-        return user().getChannel().newFailedFuture(new Exception("Cancelled packet"));
+    }
+
+    /**
+     * Let the packet go through the protocol pipes and write it to ByteBuf
+     *
+     * @param packetProtocol      - The protocol version of the packet.
+     * @param skipCurrentPipeline - Skip the current pipeline
+     * @return Packet buffer
+     * @throws Exception if it fails to write
+     */
+    private ByteBuf constructPacket(Class<? extends Protocol> packetProtocol, boolean skipCurrentPipeline) throws Exception {
+        // Apply current pipeline
+        List<Protocol> protocols = new ArrayList<>(user().get(ProtocolInfo.class).getPipeline().pipes());
+        // Other way if outgoing
+        Collections.reverse(protocols);
+        int index = 0;
+        for (int i = 0; i < protocols.size(); i++) {
+            if (protocols.get(i).getClass().equals(packetProtocol)) {
+                index = skipCurrentPipeline ? (i + 1) : (i);
+                break;
+            }
+        }
+
+        // Reset reader before we start
+        resetReader();
+
+        // Apply other protocols
+        apply(Direction.OUTGOING, user().get(ProtocolInfo.class).getState(), index, protocols);
+        // Send
+        ByteBuf output = inputBuffer == null ? Unpooled.buffer() : inputBuffer.alloc().buffer();
+        writeToBuffer(output);
+
+        return output;
     }
 
     /**
@@ -332,15 +359,18 @@ public class PacketWrapper {
      * @throws Exception if it fails to write
      */
     public ChannelFuture sendFuture(Class<? extends Protocol> packetProtocol) throws Exception {
-        return send(packetProtocol, true);
+        if (!isCancelled()) {
+            ByteBuf output = constructPacket(packetProtocol, true);
+            return user().sendRawPacketFuture(output);
+        }
+        return user().getChannel().newFailedFuture(new Exception("Cancelled packet"));
     }
 
     /**
      * Send this packet to the associated user.
      * Be careful not to send packets twice.
      * (Sends it after current)
-     * <br />
-     * <b>This method is no longer used, it's favoured to use send(Protocol) as it will handle the pipeline properly.</b>
+     * <b>This method is no longer used, it's favoured to use {@link #send(Class)} as it will handle the pipeline properly.</b>
      *
      * @throws Exception if it fails to write
      */
@@ -386,7 +416,7 @@ public class PacketWrapper {
      * @param index     The index to start from
      * @param pipeline  The pipeline
      * @return The current packetwrapper
-     * @throws Exception
+     * @throws Exception If it fails to transform a packet, exception will be thrown
      */
     public PacketWrapper apply(Direction direction, State state, int index, List<Protocol> pipeline) throws Exception {
         for (int i = index; i < pipeline.size(); i++) { // Copy to prevent from removal.
@@ -437,18 +467,16 @@ public class PacketWrapper {
 
     /**
      * Send the current packet to the server.
-     * (Ensure the ID is suitable for the server version)
+     * (Ensure the ID is suitable for viaversion)
      *
      * @throws Exception If it failed to write
      */
     public void sendToServer() throws Exception {
         if (!isCancelled()) {
             ByteBuf output = inputBuffer == null ? Unpooled.buffer() : inputBuffer.alloc().buffer();
-            Type.VAR_INT.write(output, ViaDecodeHandler.PASSTHROUGH_ID); // Pass through
-
             writeToBuffer(output);
 
-            PipelineUtil.getContextBefore("decompress", user().getChannel().pipeline()).fireChannelRead(output);
+            user().getChannel().pipeline().context(Via.getManager().getInjector().getDecoderName()).fireChannelRead(output);
         }
     }
 

common/src/main/java/us/myles/ViaVersion/api/Via.java

@@ -0,0 +1,45 @@
+package us.myles.ViaVersion.api;
+
+import com.google.common.base.Preconditions;
+import lombok.Getter;
+import us.myles.ViaVersion.ViaManager;
+import us.myles.ViaVersion.api.platform.ViaPlatform;
+
+public class Via {
+    @Getter
+    private static ViaPlatform platform;
+    @Getter
+    private static ViaManager manager;
+
+    /**
+     * Register the ViaManager associated with the platform.
+     *
+     * @param viaManager The ViaManager
+     */
+    public static void init(ViaManager viaManager) {
+        Preconditions.checkArgument(manager == null, "ViaManager is already set");
+
+        Via.platform = viaManager.getPlatform();
+        Via.manager = viaManager;
+    }
+
+    /**
+     * Get the API associated with the current platform.
+     *
+     * @return API instance
+     */
+    public static ViaAPI getAPI() {
+        Preconditions.checkArgument(platform != null, "ViaVersion has not loaded the Platform");
+        return Via.platform.getApi();
+    }
+
+    /**
+     * Get the config associated with the current platform.
+     *
+     * @return Config instance
+     */
+    public static ViaVersionConfig getConfig() {
+        Preconditions.checkArgument(platform != null, "ViaVersion has not loaded the Platform");
+        return Via.platform.getConf();
+    }
+}

common/src/main/java/us/myles/ViaVersion/api/ViaAPI.java

@@ -0,0 +1,99 @@
+package us.myles.ViaVersion.api;
+
+import io.netty.buffer.ByteBuf;
+import us.myles.ViaVersion.api.boss.BossBar;
+import us.myles.ViaVersion.api.boss.BossColor;
+import us.myles.ViaVersion.api.boss.BossStyle;
+import us.myles.ViaVersion.api.protocol.ProtocolRegistry;
+
+import java.util.SortedSet;
+import java.util.UUID;
+
+/**
+ * Represents the ViaAPI
+ *
+ * @param <T> The player type for the specific platform, for bukkit it's {@code ViaAPI<Player>}
+ */
+public interface ViaAPI<T> {
+    /**
+     * Get protocol number from a player
+     * Will also retrieve version from ProtocolSupport if it's being used.
+     *
+     * @param player Platform player object, eg. Bukkit this is Player
+     * @return Protocol ID, For example (47=1.8-1.8.8, 107=1.9, 108=1.9.1)
+     */
+    int getPlayerVersion(T player);
+
+    /**
+     * Get protocol number from a player
+     *
+     * @param uuid UUID of a player
+     * @return Protocol ID, For example (47=1.8-1.8.8, 107=1.9, 108=1.9.1)
+     */
+    int getPlayerVersion(UUID uuid);
+
+    /**
+     * Is player using 1.9?
+     *
+     * @param playerUUID UUID of a player
+     * @return True if the client is on 1.9
+     * @deprecated As of 0.9.9, because all players are ported use {@link #getPlayerVersion(UUID)}
+     */
+    @Deprecated
+    boolean isPorted(UUID playerUUID);
+
+    /**
+     * Get the version of the plugin
+     *
+     * @return Plugin version
+     */
+    String getVersion();
+
+    /**
+     * Send a raw packet to the player (Use new IDs)
+     *
+     * @param player Platform player object, eg. Bukkit this is Player
+     * @param packet The packet, you need a VarInt ID then the packet contents.
+     * @throws IllegalArgumentException If not on 1.9 throws IllegalArg
+     */
+    void sendRawPacket(T player, ByteBuf packet) throws IllegalArgumentException;
+
+    /**
+     * Send a raw packet to the player (Use new IDs)
+     *
+     * @param uuid   The uuid from the player to send packet
+     * @param packet The packet, you need a VarInt ID then the packet contents.
+     * @throws IllegalArgumentException If not on 1.9 throws IllegalArg
+     */
+    void sendRawPacket(UUID uuid, ByteBuf packet) throws IllegalArgumentException;
+
+    /**
+     * Create a new bossbar instance
+     *
+     * @param title The title
+     * @param color The color
+     * @param style The style
+     * @return BossBar instance
+     */
+    BossBar createBossBar(String title, BossColor color, BossStyle style);
+
+    /**
+     * Create a new bossbar instance
+     *
+     * @param title  The title
+     * @param health Number between 0 and 1
+     * @param color  The color
+     * @param style  The style
+     * @return BossBar instance
+     */
+    BossBar createBossBar(String title, float health, BossColor color, BossStyle style);
+
+    /**
+     * Get the supported protocol versions
+     * This method removes any blocked protocol versions.
+     *
+     * @return a list of protocol versions
+     * @see ProtocolRegistry#getSupportedVersions() for full list.
+     */
+    SortedSet<Integer> getSupportedVersions();
+}

common/src/main/java/us/myles/ViaVersion/api/ViaListener.java

@@ -0,0 +1,43 @@
+package us.myles.ViaVersion.api;
+
+import lombok.*;
+import us.myles.ViaVersion.api.data.UserConnection;
+import us.myles.ViaVersion.api.protocol.Protocol;
+import us.myles.ViaVersion.protocols.base.ProtocolInfo;
+
+import java.util.UUID;
+
+@Getter(AccessLevel.PROTECTED)
+@Setter(AccessLevel.PROTECTED)
+@RequiredArgsConstructor
+public abstract class ViaListener {
+    private final Class<? extends Protocol> requiredPipeline;
+    private boolean registered = false;
+
+    /**
+     * Get the UserConnection from an UUID
+     *
+     * @param uuid UUID object
+     * @return The UserConnection
+     */
+    protected UserConnection getUserConnection(@NonNull UUID uuid) {
+        return Via.getManager().getConnection(uuid);
+    }
+
+    /**
+     * Checks if the UUID is on the selected pipe
+     *
+     * @param uuid UUID Object
+     * @return True if on pipe
+     */
+    protected boolean isOnPipe(UUID uuid) {
+        UserConnection userConnection = getUserConnection(uuid);
+        return userConnection != null &&
+                userConnection.get(ProtocolInfo.class).getPipeline().contains(requiredPipeline);
+    }
+
+    /**
+     * Register the event
+     */
+    public abstract void register();
+}

common/src/main/java/us/myles/ViaVersion/api/ViaVersionConfig.java

@@ -19,14 +19,14 @@ public interface ViaVersionConfig {
     boolean isPreventCollision();
 
     /**
-     * Get if 1.9 & 1.10 clients are shown the new effect indicator in the top-right corner
+     * Get if 1.9 & 1.10 clients are shown the new effect indicator in the top-right corner
      *
      * @return true if the using of the new effect indicator is enabled
      */
     boolean isNewEffectIndicator();
 
     /**
-     * Get if 1.9 & 1.10 clients are shown the new death message on the death screen
+     * Get if 1.9 & 1.10 clients are shown the new death message on the death screen
      *
      * @return true if enabled
      */
@@ -40,28 +40,35 @@ public interface ViaVersionConfig {
     boolean isSuppressMetadataErrors();
 
     /**
-     * Get if blocking in 1.9 & 1.10 appears as a player holding a shield
+     * Get if blocking in 1.9 & 1.10 appears as a player holding a shield
      *
      * @return true if shield blocking is enabled
      */
     boolean isShieldBlocking();
 
     /**
-     * Get if armor stand positions are fixed so holograms show up at the correct height in 1.9 & 1.10
+     * Get if armor stand positions are fixed so holograms show up at the correct height in 1.9 & 1.10
      *
      * @return true if hologram patching is enabled
      */
     boolean isHologramPatch();
 
     /**
-     * Get if boss bars are fixed for 1.9 & 1.10 clients
+     * Get if the 1.11 piston animation patch is enabled
+     *
+     * @return true if the piston patch is enabled.
+     */
+    boolean isPistonAnimationPatch();
+
+    /**
+     * Get if boss bars are fixed for 1.9 & 1.10 clients
      *
      * @return true if boss bar patching is enabled
      */
     boolean isBossbarPatch();
 
     /**
-     * Get if the boss bars for 1.9 & 1.10 clients are being stopped from flickering
+     * Get if the boss bars for 1.9 & 1.10 clients are being stopped from flickering
      * This will keep all boss bars on 100% (not recommended)
      *
      * @return true if boss bar anti flickering is enabled
@@ -108,7 +115,7 @@ public interface ViaVersionConfig {
     /**
      * Get the kick message sent if the user hits the max packets per second.
      *
-     * @return Kick message, with colour codes using '&'
+     * @return Kick message, with colour codes using '&'
      */
     String getMaxPPSKickMessage();
 
@@ -136,7 +143,7 @@ public interface ViaVersionConfig {
     /**
      * Get the kick message sent if the user goes over the warnings in the interval
      *
-     * @return Kick message, with colour codes using '&'
+     * @return Kick message, with colour codes using '&'
      */
     String getMaxWarningsKickMessage();
 
@@ -209,4 +216,12 @@ public interface ViaVersionConfig {
      * @return Disconnect message
      */
     String getBlockedDisconnectMsg();
+
+    /**
+     * Get the message sent to players being kicked on reload.
+     * Players are kicked to stop the server crashing
+     *
+     * @return Disconnect message
+     */
+    String getReloadDisconnectMsg();
 }

common/src/main/java/us/myles/ViaVersion/api/boss/BossBar.java

@@ -1,17 +1,17 @@
 package us.myles.ViaVersion.api.boss;
 
-import org.bukkit.entity.Player;
+import us.myles.ViaVersion.api.Via;
 
 import java.util.Set;
 import java.util.UUID;
 
-public interface BossBar {
+public abstract class BossBar<T> {
     /**
      * Get the current title
      *
      * @return the title
      */
-    String getTitle();
+    public abstract String getTitle();
 
     /**
      * Change the title
@@ -19,14 +19,14 @@ public interface BossBar {
      * @param title Title can be in either JSON or just text
      * @return The BossBar object
      */
-    BossBar setTitle(String title);
+    public abstract BossBar setTitle(String title);
 
     /**
      * Get the health
      *
      * @return float between 0F - 1F
      */
-    float getHealth();
+    public abstract float getHealth();
 
     /**
      * Change the health
@@ -34,14 +34,14 @@ public interface BossBar {
      * @param health this float has to be between 0F - 1F
      * @return The BossBar object
      */
-    BossBar setHealth(float health);
+    public abstract BossBar setHealth(float health);
 
     /**
      * Get the bossbar color
      *
      * @return The colour
      */
-    BossColor getColor();
+    public abstract BossColor getColor();
 
     /**
      * Yay colors!
@@ -49,14 +49,14 @@ public interface BossBar {
      * @param color Whatever color you want!
      * @return The BossBar object
      */
-    BossBar setColor(BossColor color);
+    public abstract BossBar setColor(BossColor color);
 
     /**
      * Get the bosbar style
      *
      * @return BossStyle
      */
-    BossStyle getStyle();
+    public abstract BossStyle getStyle();
 
     /**
      * Change the bosbar style
@@ -64,15 +64,19 @@ public interface BossBar {
      * @param style BossStyle
      * @return The BossBar object
      */
-    BossBar setStyle(BossStyle style);
+    public abstract BossBar setStyle(BossStyle style);
 
     /**
      * Show the bossbar to a player.
      *
      * @param player The player
      * @return The BossBar object
+     * @deprecated Deprecated use UUID's instead of Player objects {@link #addPlayer(UUID)}
      */
-    BossBar addPlayer(Player player);
+    @Deprecated
+    public BossBar addPlayer(T player) {
+        throw new UnsupportedOperationException("This method is not implemented for the platform " + Via.getPlatform().getPlatformName());
+    }
 
     /**
      * Show the bossbar to a player (uuid)
@@ -80,23 +84,39 @@ public interface BossBar {
      * @param player uuid of the player
      * @return The BossBar object
      */
-    BossBar addPlayer(UUID player);
+    public abstract BossBar addPlayer(UUID player);
 
     /**
      * add multiple players
      *
      * @param players list of players
      * @return The BossBar object
+     * @deprecated Deprecated use UUID's instead of Player objects {@link #addPlayer(UUID)}
      */
-    BossBar addPlayers(Player... players);
+    @Deprecated
+    public BossBar addPlayers(T... players) {
+        throw new UnsupportedOperationException("This method is not implemented for the platform " + Via.getPlatform().getPlatformName());
+    }
 
     /**
      * Remove the bossbar from a player
      *
      * @param player The player
      * @return The BossBar object
+     * @deprecated Deprecated use UUID's instead of Player objects {@link #removePlayer(UUID)}
      */
-    BossBar removePlayer(Player player);
+    @Deprecated
+    public BossBar removePlayer(T player) {
+        throw new UnsupportedOperationException("This method is not implemented for the platform " + Via.getPlatform().getPlatformName());
+    }
+
+    /**
+     * Removes the bossbar from a player
+     *
+     * @param uuid The platers YYUD
+     * @return The BossBar object
+     */
+    public abstract BossBar removePlayer(UUID uuid);
 
     /**
      * Add flags
@@ -104,7 +124,7 @@ public interface BossBar {
      * @param flag The flag to add
      * @return The BossBar object
      */
-    BossBar addFlag(BossFlag flag);
+    public abstract BossBar addFlag(BossFlag flag);
 
     /**
      * Remove flags.
@@ -112,39 +132,39 @@ public interface BossBar {
      * @param flag The flag to remove
      * @return The BossBar object
      */
-    BossBar removeFlag(BossFlag flag);
+    public abstract BossBar removeFlag(BossFlag flag);
 
     /**
      * @param flag The flag to check against
      * @return True if it has the flag
      */
-    boolean hasFlag(BossFlag flag);
+    public abstract boolean hasFlag(BossFlag flag);
 
     /**
      * Get players
      *
      * @return UUIDS from players (sorry I lied)
      */
-    Set<UUID> getPlayers();
+    public abstract Set<UUID> getPlayers();
 
     /**
      * Show the bossbar to everyone (In the getPlayer set)
      *
      * @return The BossBar object
      */
-    BossBar show();
+    public abstract BossBar show();
 
     /**
      * Hide the bossbar from everyone (In the getPlayer set)
      *
      * @return The BossBar object
      */
-    BossBar hide();
+    public abstract BossBar hide();
 
     /**
      * Is it visible?
      *
      * @return visibility changable with show() and hide()
      */
-    boolean isVisible();
+    public abstract boolean isVisible();
 }

common/src/main/java/us/myles/ViaVersion/api/command/ViaCommandSender.java

@@ -0,0 +1,34 @@
+package us.myles.ViaVersion.api.command;
+
+import java.util.UUID;
+
+public interface ViaCommandSender {
+    /**
+     * Check if the sender has a permission.
+     *
+     * @param permission Permission string eg. viaversion.admin
+     * @return True if the sender has the permission
+     */
+    boolean hasPermission(String permission);
+
+    /**
+     * Send a message to the sender
+     *
+     * @param msg The message to send
+     */
+    void sendMessage(String msg);
+
+    /**
+     * Get the senders UUID.
+     *
+     * @return The senders UUID
+     */
+    UUID getUUID();
+
+    /**
+     * Get the senders name.
+     *
+     * @return The senders name
+     */
+    String getName();
+}

common/src/main/java/us/myles/ViaVersion/api/command/ViaSubCommand.java

@@ -1,6 +1,5 @@
 package us.myles.ViaVersion.api.command;
 
-import org.bukkit.command.CommandSender;
 import us.myles.ViaVersion.commands.ViaCommandHandler;
 
 import java.util.Collections;
@@ -10,14 +9,14 @@ public abstract class ViaSubCommand {
     /**
      * Subcommand name
      *
-     * @return The command name
+     * @return The commands name
      */
     public abstract String name();
 
     /**
      * subcommand description, this'll show in /viaversion list
      *
-     * @return The command description
+     * @return The commands description
      */
     public abstract String description();
 
@@ -25,7 +24,7 @@ public abstract class ViaSubCommand {
      * Usage example:
      * "playerversion [name]"
      *
-     * @return The command usage
+     * @return The commands usage
      */
     public String usage() {
         return name();
@@ -34,7 +33,7 @@ public abstract class ViaSubCommand {
     /**
      * Permission, null for everyone
      *
-     * @return The permission required to use the command
+     * @return The permission required to use the commands
      */
     public String permission() {
         return "viaversion.admin";
@@ -45,9 +44,9 @@ public abstract class ViaSubCommand {
      *
      * @param sender Command sender
      * @param args   Arguments
-     * @return command executed succesfully if false, show usage
+     * @return commands executed succesfully if false, show usage
      */
-    public abstract boolean execute(CommandSender sender, String[] args);
+    public abstract boolean execute(ViaCommandSender sender, String[] args);
 
     /**
      * Yay, possibility to implement tab-completion
@@ -56,7 +55,7 @@ public abstract class ViaSubCommand {
      * @param args   args
      * @return tab complete possibilities
      */
-    public List<String> onTabComplete(CommandSender sender, String[] args) {
+    public List<String> onTabComplete(ViaCommandSender sender, String[] args) {
         return Collections.emptyList();
     }
 
@@ -67,11 +66,11 @@ public abstract class ViaSubCommand {
     /**
      * Send message formatted / colored
      *
-     * @param sender  command sender
+     * @param sender  commands sender
      * @param message string message
      * @param args    optional objects
      */
-    public void sendMessage(CommandSender sender, String message, Object... args) {
+    public void sendMessage(ViaCommandSender sender, String message, Object... args) {
         ViaCommandHandler.sendMessage(sender, message, args);
     }
 }

common/src/main/java/us/myles/ViaVersion/api/command/ViaVersionCommand.java

@@ -1,5 +1,7 @@
 package us.myles.ViaVersion.api.command;
 
+import java.util.List;
+
 public interface ViaVersionCommand {
     /**
      * Register your own subcommand inside ViaVersion
@@ -24,4 +26,22 @@ public interface ViaVersionCommand {
      * @return ViaSubCommand instance
      */
     ViaSubCommand getSubCommand(String name);
+
+    /**
+     * Executed when the Command sender executes the commands
+     *
+     * @param sender Sender object
+     * @param args   arguments provided
+     * @return was successful
+     */
+    boolean onCommand(ViaCommandSender sender, String[] args);
+
+    /**
+     * Executed when the Command sender tab-completes
+     *
+     * @param sender Sender object
+     * @param args   arguments provided
+     * @return was successful
+     */
+    List<String> onTabComplete(ViaCommandSender sender, String[] args);
 }

common/src/main/java/us/myles/ViaVersion/api/configuration/ConfigurationProvider.java

@@ -0,0 +1,31 @@
+package us.myles.ViaVersion.api.configuration;
+
+import java.util.Map;
+
+public interface ConfigurationProvider {
+
+    /**
+     * Sets the specified path to the given value.
+     *
+     * @param path  Path of the object to set.
+     * @param value New value to set the path to
+     */
+    void set(String path, Object value);
+
+    /**
+     * Saves the config
+     */
+    void saveConfig();
+
+    /**
+     * Reloads the config
+     */
+    void reloadConfig();
+
+    /**
+     * Get all the configuration values
+     *
+     * @return Map with key-values
+     */
+    Map<String, Object> getValues();
+}

common/src/main/java/us/myles/ViaVersion/api/data/UserConnection.java

@@ -5,9 +5,9 @@ import io.netty.channel.ChannelFuture;
 import io.netty.channel.ChannelHandler;
 import io.netty.channel.socket.SocketChannel;
 import lombok.Data;
-import org.bukkit.Bukkit;
-import org.bukkit.ChatColor;
-import org.bukkit.entity.Player;
+import net.md_5.bungee.api.ChatColor;
+import us.myles.ViaVersion.api.Via;
+import us.myles.ViaVersion.api.ViaVersionConfig;
 import us.myles.ViaVersion.protocols.base.ProtocolInfo;
 
 import java.util.Map;
@@ -66,6 +66,14 @@ public class UserConnection {
         storedObjects.put(object.getClass(), object);
     }
 
+    /**
+     * Clear all the stored objects
+     * Used for bungee when switching servers.
+     */
+    public void clearStoredObjects() {
+        storedObjects.clear();
+    }
+
     /**
      * Send a raw packet to the player
      *
@@ -73,7 +81,7 @@ public class UserConnection {
      * @param currentThread Should it run in the same thread
      */
     public void sendRawPacket(final ByteBuf packet, boolean currentThread) {
-        final ChannelHandler handler = channel.pipeline().get("encoder");
+        final ChannelHandler handler = channel.pipeline().get(Via.getManager().getInjector().getEncoderName());
         if (currentThread) {
             channel.pipeline().context(handler).writeAndFlush(packet);
         } else {
@@ -93,7 +101,7 @@ public class UserConnection {
      * @return ChannelFuture of the packet being sent
      */
     public ChannelFuture sendRawPacketFuture(final ByteBuf packet) {
-        final ChannelHandler handler = channel.pipeline().get("encoder");
+        final ChannelHandler handler = channel.pipeline().get(Via.getManager().getInjector().getEncoderName());
         return channel.pipeline().context(handler).writeAndFlush(packet);
     }
 
@@ -134,6 +142,37 @@ public class UserConnection {
         return false;
     }
 
+    public boolean handlePPS() {
+        ViaVersionConfig conf = Via.getConfig();
+        // Max PPS Checker
+        if (conf.getMaxPPS() > 0) {
+            if (getPacketsPerSecond() >= conf.getMaxPPS()) {
+                disconnect(conf.getMaxPPSKickMessage().replace("%pps", ((Long) getPacketsPerSecond()).intValue() + ""));
+                return true; // don't send current packet
+            }
+        }
+
+        // Tracking PPS Checker
+        if (conf.getMaxWarnings() > 0 && conf.getTrackingPeriod() > 0) {
+            if (getSecondsObserved() > conf.getTrackingPeriod()) {
+                // Reset
+                setWarnings(0);
+                setSecondsObserved(1);
+            } else {
+                setSecondsObserved(getSecondsObserved() + 1);
+                if (getPacketsPerSecond() >= conf.getWarningPPS()) {
+                    setWarnings(getWarnings() + 1);
+                }
+
+                if (getWarnings() >= conf.getMaxWarnings()) {
+                    disconnect(conf.getMaxWarningsKickMessage().replace("%pps", ((Long) getPacketsPerSecond()).intValue() + ""));
+                    return true; // don't send current packet
+                }
+            }
+        }
+        return false;
+    }
+
     /**
      * Disconnect a connection
      *
@@ -145,18 +184,15 @@ public class UserConnection {
         pendingDisconnect = true;
         if (get(ProtocolInfo.class).getUuid() != null) {
             final UUID uuid = get(ProtocolInfo.class).getUuid();
-            if (Bukkit.getPlayer(uuid) != null) {
-                Bukkit.getScheduler().runTask(Bukkit.getPluginManager().getPlugin("ViaVersion"), new Runnable() {
-                    @Override
-                    public void run() {
-                        Player player = Bukkit.getPlayer(uuid);
-                        if (player != null)
-                            player.kickPlayer(ChatColor.translateAlternateColorCodes('&', reason));
+            Via.getPlatform().runSync(new Runnable() {
+                @Override
+                public void run() {
+                    if (!Via.getPlatform().kickPlayer(uuid, ChatColor.translateAlternateColorCodes('&', reason))) {
+                        getChannel().close(); // =)
                     }
-                });
-                return;
-            }
+                }
+            });
         }
-        getChannel().close(); // =)
+
     }
 }

common/src/main/java/us/myles/ViaVersion/api/entities/Entity1_10Types.java

@@ -0,0 +1,187 @@
+package us.myles.ViaVersion.api.entities;
+
+import com.google.common.base.Optional;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import us.myles.ViaVersion.api.Via;
+
+// 1.10 Entity / Object ids
+public class Entity1_10Types {
+
+    public static EntityType getTypeFromId(int typeID, boolean isObject) {
+        Optional<EntityType> type;
+
+        if (isObject)
+            type = ObjectTypes.getPCEntity(typeID);
+        else
+            type = EntityType.findById(typeID);
+
+        if (!type.isPresent()) {
+            Via.getPlatform().getLogger().severe("Could not find type id " + typeID + " isObject=" + isObject);
+            return EntityType.ENTITY; // Fall back to the basic ENTITY
+        }
+
+        return type.get();
+    }
+
+    @AllArgsConstructor
+    @Getter
+    public enum EntityType {
+        ENTITY(-1),
+        DROPPED_ITEM(1, EntityType.ENTITY),
+        EXPERIENCE_ORB(2, EntityType.ENTITY),
+        LEASH_HITCH(8, EntityType.ENTITY), // Actually entity hanging but it doesn't make a lot of difference for metadata
+        PAINTING(9, EntityType.ENTITY), // Actually entity hanging but it doesn't make a lot of difference for metadata
+        ARROW(10, EntityType.ENTITY),
+        SNOWBALL(11, EntityType.ENTITY), // Actually EntityProjectile
+        FIREBALL(12, EntityType.ENTITY),
+        SMALL_FIREBALL(13, EntityType.ENTITY),
+        ENDER_PEARL(14, EntityType.ENTITY), // Actually EntityProjectile
+        ENDER_SIGNAL(15, EntityType.ENTITY),
+        THROWN_EXP_BOTTLE(17, EntityType.ENTITY),
+        ITEM_FRAME(18, EntityType.ENTITY), // Actually EntityHanging
+        WITHER_SKULL(19, EntityType.ENTITY),
+        PRIMED_TNT(20, EntityType.ENTITY),
+        FALLING_BLOCK(21, EntityType.ENTITY),
+        FIREWORK(22, EntityType.ENTITY),
+        TIPPED_ARROW(23, EntityType.ARROW),
+        SPECTRAL_ARROW(24, EntityType.ARROW),
+        SHULKER_BULLET(25, EntityType.ENTITY),
+        DRAGON_FIREBALL(26, EntityType.FIREBALL),
+
+        ENTITY_LIVING(-1, ENTITY),
+        ENTITY_INSENTIENT(-1, ENTITY_LIVING),
+        ENTITY_AGEABLE(-1, ENTITY_INSENTIENT),
+        ENTITY_TAMEABLE_ANIMAL(-1, ENTITY_AGEABLE),
+        ENTITY_HUMAN(-1, ENTITY_LIVING),
+
+        ARMOR_STAND(30, EntityType.ENTITY_LIVING),
+
+        // Vehicles
+        MINECART_ABSTRACT(-1, ENTITY),
+        MINECART_COMMAND(40, MINECART_ABSTRACT),
+        BOAT(41, ENTITY),
+        MINECART_RIDEABLE(42, MINECART_ABSTRACT),
+        MINECART_CHEST(43, MINECART_ABSTRACT),
+        MINECART_FURNACE(44, MINECART_ABSTRACT),
+        MINECART_TNT(45, MINECART_ABSTRACT),
+        MINECART_HOPPER(46, MINECART_ABSTRACT),
+        MINECART_MOB_SPAWNER(47, MINECART_ABSTRACT),
+
+        CREEPER(50, ENTITY_INSENTIENT),
+        SKELETON(51, ENTITY_INSENTIENT),
+        SPIDER(52, ENTITY_INSENTIENT),
+        GIANT(53, ENTITY_INSENTIENT),
+        ZOMBIE(54, ENTITY_INSENTIENT),
+        SLIME(55, ENTITY_INSENTIENT),
+        GHAST(56, ENTITY_INSENTIENT),
+        PIG_ZOMBIE(57, ZOMBIE),
+        ENDERMAN(58, ENTITY_INSENTIENT),
+        CAVE_SPIDER(59, SPIDER),
+        SILVERFISH(60, ENTITY_INSENTIENT),
+        BLAZE(61, ENTITY_INSENTIENT),
+        MAGMA_CUBE(62, SLIME),
+        ENDER_DRAGON(63, ENTITY_INSENTIENT),
+        WITHER(64, ENTITY_INSENTIENT),
+        BAT(65, ENTITY_INSENTIENT),
+        WITCH(66, ENTITY_INSENTIENT),
+        ENDERMITE(67, ENTITY_INSENTIENT),
+        GUARDIAN(68, ENTITY_INSENTIENT),
+        IRON_GOLEM(99, ENTITY_INSENTIENT), // moved up to avoid illegal forward references
+        SHULKER(69, EntityType.IRON_GOLEM),
+        PIG(90, ENTITY_AGEABLE),
+        SHEEP(91, ENTITY_AGEABLE),
+        COW(92, ENTITY_AGEABLE),
+        CHICKEN(93, ENTITY_AGEABLE),
+        SQUID(94, ENTITY_INSENTIENT),
+        WOLF(95, ENTITY_TAMEABLE_ANIMAL),
+        MUSHROOM_COW(96, COW),
+        SNOWMAN(97, EntityType.IRON_GOLEM),
+        OCELOT(98, ENTITY_TAMEABLE_ANIMAL),
+        HORSE(100, ENTITY_AGEABLE),
+        RABBIT(101, ENTITY_AGEABLE),
+        POLAR_BEAR(102, ENTITY_AGEABLE),
+        VILLAGER(120, ENTITY_AGEABLE),
+        ENDER_CRYSTAL(200, ENTITY),
+        SPLASH_POTION(-1, ENTITY),
+        LINGERING_POTION(-1, SPLASH_POTION),
+        AREA_EFFECT_CLOUD(-1, ENTITY),
+        EGG(-1, ENTITY),
+        FISHING_HOOK(-1, ENTITY),
+        LIGHTNING(-1, ENTITY),
+        WEATHER(-1, ENTITY),
+        PLAYER(-1, ENTITY_HUMAN),
+        COMPLEX_PART(-1, ENTITY);
+
+        private final int id;
+        private final EntityType parent;
+
+        EntityType(int id) {
+            this.id = id;
+            this.parent = null;
+        }
+
+        public static Optional<EntityType> findById(int id) {
+            if (id == -1)  // Check if this is called
+                return Optional.absent();
+
+            for (EntityType ent : EntityType.values())
+                if (ent.getId() == id)
+                    return Optional.of(ent);
+
+            return Optional.absent();
+        }
+    }
+
+    @AllArgsConstructor
+    @Getter
+    public enum ObjectTypes {
+        BOAT(1, EntityType.BOAT),
+        ITEM(2, EntityType.DROPPED_ITEM),
+        AREA_EFFECT_CLOUD(3, EntityType.AREA_EFFECT_CLOUD),
+        MINECART(10, EntityType.MINECART_ABSTRACT),
+        TNT_PRIMED(50, EntityType.PRIMED_TNT),
+        ENDER_CRYSTAL(51, EntityType.ENDER_CRYSTAL),
+        TIPPED_ARROW(60, EntityType.TIPPED_ARROW),
+        SNOWBALL(61, EntityType.SNOWBALL),
+        EGG(62, EntityType.EGG),
+        FIREBALL(63, EntityType.FIREBALL),
+        SMALL_FIREBALL(64, EntityType.SMALL_FIREBALL),
+        ENDER_PEARL(65, EntityType.ENDER_PEARL),
+        WITHER_SKULL(66, EntityType.WITHER_SKULL),
+        SHULKER_BULLET(67, EntityType.SHULKER_BULLET),
+        FALLING_BLOCK(70, EntityType.FALLING_BLOCK),
+        ITEM_FRAME(71, EntityType.ITEM_FRAME),
+        ENDER_SIGNAL(72, EntityType.ENDER_SIGNAL),
+        POTION(73, EntityType.SPLASH_POTION),
+        THROWN_EXP_BOTTLE(75, EntityType.THROWN_EXP_BOTTLE),
+        FIREWORK(76, EntityType.FIREWORK),
+        LEASH(77, EntityType.LEASH_HITCH),
+        ARMOR_STAND(78, EntityType.ARMOR_STAND),
+        FISHIHNG_HOOK(90, EntityType.FISHING_HOOK),
+        SPECTRAL_ARROW(91, EntityType.SPECTRAL_ARROW),
+        DRAGON_FIREBALL(93, EntityType.DRAGON_FIREBALL);
+
+        private final int id;
+        private final EntityType type;
+
+        public static Optional<ObjectTypes> findById(int id) {
+            if (id == -1)
+                return Optional.absent();
+
+            for (ObjectTypes ent : ObjectTypes.values())
+                if (ent.getId() == id)
+                    return Optional.of(ent);
+
+            return Optional.absent();
+        }
+
+        public static Optional<EntityType> getPCEntity(int id) {
+            Optional<ObjectTypes> output = findById(id);
+
+            if (!output.isPresent())
+                return Optional.absent();
+            return Optional.of(output.get().getType());
+        }
+    }
+}

common/src/main/java/us/myles/ViaVersion/api/entities/Entity1_11Types.java

@@ -0,0 +1,241 @@
+package us.myles.ViaVersion.api.entities;
+
+import com.google.common.base.Optional;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import us.myles.ViaVersion.api.Via;
+
+// 1.11 Entity / Object ids TODO maybe in the future instead of copying it, some api.
+public class Entity1_11Types {
+    public static EntityType getTypeFromId(int typeID, boolean isObject) {
+        Optional<EntityType> type;
+
+        if (isObject)
+            type = ObjectTypes.getPCEntity(typeID);
+        else
+            type = EntityType.findById(typeID);
+
+        if (!type.isPresent()) {
+            Via.getPlatform().getLogger().severe("Could not find type id " + typeID + " isObject=" + isObject);
+            return EntityType.ENTITY; // Fall back to the basic ENTITY
+        }
+
+        return type.get();
+    }
+
+    @AllArgsConstructor
+    @Getter
+    public enum EntityType {
+        ENTITY(-1),
+        DROPPED_ITEM(1, ENTITY),
+        EXPERIENCE_ORB(2, ENTITY),
+        LEASH_HITCH(8, ENTITY), // Actually entity hanging but it doesn't make a lot of difference for metadata
+        PAINTING(9, ENTITY), // Actually entity hanging but it doesn't make a lot of difference for metadata
+        ARROW(10, ENTITY),
+        SNOWBALL(11, ENTITY), // Actually EntityProjectile
+        FIREBALL(12, ENTITY),
+        SMALL_FIREBALL(13, ENTITY),
+        ENDER_PEARL(14, ENTITY), // Actually EntityProjectile
+        ENDER_SIGNAL(15, ENTITY),
+        THROWN_EXP_BOTTLE(17, ENTITY),
+        ITEM_FRAME(18, ENTITY), // Actually EntityHanging
+        WITHER_SKULL(19, ENTITY),
+        PRIMED_TNT(20, ENTITY),
+        FALLING_BLOCK(21, ENTITY),
+        FIREWORK(22, ENTITY),
+        TIPPED_ARROW(23, ARROW),
+        SPECTRAL_ARROW(24, ARROW),
+        SHULKER_BULLET(25, ENTITY),
+        DRAGON_FIREBALL(26, FIREBALL),
+        EVOCATION_FANGS(33, ENTITY),
+
+
+        ENTITY_LIVING(-1, ENTITY),
+        ENTITY_INSENTIENT(-1, ENTITY_LIVING),
+        ENTITY_AGEABLE(-1, ENTITY_INSENTIENT),
+        ENTITY_TAMEABLE_ANIMAL(-1, ENTITY_AGEABLE),
+        ENTITY_HUMAN(-1, ENTITY_LIVING),
+
+        ARMOR_STAND(30, ENTITY_LIVING),
+        EVOCATION_ILLAGER(34, ENTITY_INSENTIENT),
+        VEX(35, ENTITY_INSENTIENT),
+        VINDICATION_ILLAGER(36, ENTITY_INSENTIENT),
+
+        // Vehicles
+        MINECART_ABSTRACT(-1, ENTITY),
+        MINECART_COMMAND(40, MINECART_ABSTRACT),
+        BOAT(41, ENTITY),
+        MINECART_RIDEABLE(42, MINECART_ABSTRACT),
+        MINECART_CHEST(43, MINECART_ABSTRACT),
+        MINECART_FURNACE(44, MINECART_ABSTRACT),
+        MINECART_TNT(45, MINECART_ABSTRACT),
+        MINECART_HOPPER(46, MINECART_ABSTRACT),
+        MINECART_MOB_SPAWNER(47, MINECART_ABSTRACT),
+
+        CREEPER(50, ENTITY_INSENTIENT),
+
+        ABSTRACT_SKELETON(-1, ENTITY_INSENTIENT),
+        SKELETON(51, ABSTRACT_SKELETON),
+        WITHER_SKELETON(5, ABSTRACT_SKELETON),
+        STRAY(6, ABSTRACT_SKELETON),
+
+        SPIDER(52, ENTITY_INSENTIENT),
+        GIANT(53, ENTITY_INSENTIENT),
+
+        ZOMBIE(54, ENTITY_INSENTIENT),
+        HUSK(23, ZOMBIE),
+        ZOMBIE_VILLAGER(27, ZOMBIE),
+
+        SLIME(55, ENTITY_INSENTIENT),
+        GHAST(56, ENTITY_INSENTIENT),
+        PIG_ZOMBIE(57, ZOMBIE),
+        ENDERMAN(58, ENTITY_INSENTIENT),
+        CAVE_SPIDER(59, SPIDER),
+        SILVERFISH(60, ENTITY_INSENTIENT),
+        BLAZE(61, ENTITY_INSENTIENT),
+        MAGMA_CUBE(62, SLIME),
+        ENDER_DRAGON(63, ENTITY_INSENTIENT),
+        WITHER(64, ENTITY_INSENTIENT),
+        BAT(65, ENTITY_INSENTIENT),
+        WITCH(66, ENTITY_INSENTIENT),
+        ENDERMITE(67, ENTITY_INSENTIENT),
+
+        GUARDIAN(68, ENTITY_INSENTIENT),
+        ELDER_GUARDIAN(4, EntityType.GUARDIAN), // Moved down to avoid illegal forward reference
+
+        IRON_GOLEM(99, ENTITY_INSENTIENT), // moved up to avoid illegal forward references
+        SHULKER(69, EntityType.IRON_GOLEM),
+        PIG(90, ENTITY_AGEABLE),
+        SHEEP(91, ENTITY_AGEABLE),
+        COW(92, ENTITY_AGEABLE),
+        CHICKEN(93, ENTITY_AGEABLE),
+        SQUID(94, ENTITY_INSENTIENT),
+        WOLF(95, ENTITY_TAMEABLE_ANIMAL),
+        MUSHROOM_COW(96, COW),
+        SNOWMAN(97, EntityType.IRON_GOLEM),
+        OCELOT(98, ENTITY_TAMEABLE_ANIMAL),
+
+        ABSTRACT_HORSE(-1, ENTITY_AGEABLE),
+        HORSE(100, ABSTRACT_HORSE),
+        SKELETON_HORSE(28, ABSTRACT_HORSE),
+        ZOMBIE_HORSE(29, ABSTRACT_HORSE),
+
+        CHESTED_HORSE(-1, ABSTRACT_HORSE),
+        DONKEY(31, CHESTED_HORSE),
+        MULE(32, CHESTED_HORSE),
+        LIAMA(103, CHESTED_HORSE),
+
+
+        RABBIT(101, ENTITY_AGEABLE),
+        POLAR_BEAR(102, ENTITY_AGEABLE),
+        VILLAGER(120, ENTITY_AGEABLE),
+        ENDER_CRYSTAL(200, ENTITY),
+        SPLASH_POTION(-1, ENTITY),
+        LINGERING_POTION(-1, SPLASH_POTION),
+        AREA_EFFECT_CLOUD(-1, ENTITY),
+        EGG(-1, ENTITY),
+        FISHING_HOOK(-1, ENTITY),
+        LIGHTNING(-1, ENTITY),
+        WEATHER(-1, ENTITY),
+        PLAYER(-1, ENTITY_HUMAN),
+        COMPLEX_PART(-1, ENTITY),
+        LIAMA_SPIT(-1, ENTITY);
+
+        private final int id;
+        private final EntityType parent;
+
+        EntityType(int id) {
+            this.id = id;
+            this.parent = null;
+        }
+
+        public static Optional<EntityType> findById(int id) {
+            if (id == -1)  // Check if this is called
+                return Optional.absent();
+
+            for (EntityType ent : EntityType.values())
+                if (ent.getId() == id)
+                    return Optional.of(ent);
+
+            return Optional.absent();
+        }
+
+        public boolean is(EntityType... types) {
+            for (EntityType type : types)
+                if (is(type))
+                    return true;
+            return false;
+        }
+
+        public boolean is(EntityType type) {
+            return this == type;
+        }
+
+        public boolean isOrHasParent(EntityType type) {
+            EntityType parent = this;
+
+            do {
+                if (parent.equals(type))
+                    return true;
+
+                parent = parent.getParent();
+            } while (parent != null);
+
+            return false;
+        }
+    }
+
+    @AllArgsConstructor
+    @Getter
+    public enum ObjectTypes {
+        BOAT(1, EntityType.BOAT),
+        ITEM(2, EntityType.DROPPED_ITEM),
+        AREA_EFFECT_CLOUD(3, EntityType.AREA_EFFECT_CLOUD),
+        MINECART(10, EntityType.MINECART_ABSTRACT),
+        TNT_PRIMED(50, EntityType.PRIMED_TNT),
+        ENDER_CRYSTAL(51, EntityType.ENDER_CRYSTAL),
+        TIPPED_ARROW(60, EntityType.TIPPED_ARROW),
+        SNOWBALL(61, EntityType.SNOWBALL),
+        EGG(62, EntityType.EGG),
+        FIREBALL(63, EntityType.FIREBALL),
+        SMALL_FIREBALL(64, EntityType.SMALL_FIREBALL),
+        ENDER_PEARL(65, EntityType.ENDER_PEARL),
+        WITHER_SKULL(66, EntityType.WITHER_SKULL),
+        SHULKER_BULLET(67, EntityType.SHULKER_BULLET),
+        LIAMA_SPIT(68, EntityType.LIAMA_SPIT),
+        FALLING_BLOCK(70, EntityType.FALLING_BLOCK),
+        ITEM_FRAME(71, EntityType.ITEM_FRAME),
+        ENDER_SIGNAL(72, EntityType.ENDER_SIGNAL),
+        POTION(73, EntityType.SPLASH_POTION),
+        THROWN_EXP_BOTTLE(75, EntityType.THROWN_EXP_BOTTLE),
+        FIREWORK(76, EntityType.FIREWORK),
+        LEASH(77, EntityType.LEASH_HITCH),
+        ARMOR_STAND(78, EntityType.ARMOR_STAND),
+        EVOCATION_FANGS(39, EntityType.EVOCATION_FANGS),
+        FISHIHNG_HOOK(90, EntityType.FISHING_HOOK),
+        SPECTRAL_ARROW(91, EntityType.SPECTRAL_ARROW),
+        DRAGON_FIREBALL(93, EntityType.DRAGON_FIREBALL);
+
+        private final int id;
+        private final EntityType type;
+
+        public static Optional<ObjectTypes> findById(int id) {
+            if (id == -1)
+                return Optional.absent();
+
+            for (ObjectTypes ent : ObjectTypes.values())
+                if (ent.getId() == id)
+                    return Optional.of(ent);
+
+            return Optional.absent();
+        }
+
+        public static Optional<EntityType> getPCEntity(int id) {
+            Optional<ObjectTypes> output = findById(id);
+
+            if (!output.isPresent())
+                return Optional.absent();
+            return Optional.of(output.get().getType());
+        }
+    }
+}

common/src/main/java/us/myles/ViaVersion/api/minecraft/Environment.java

@@ -0,0 +1,32 @@
+package us.myles.ViaVersion.api.minecraft;
+
+import java.util.HashMap;
+import java.util.Map;
+
+public enum Environment {
+    NORMAL(0),
+    NETHER(-1),
+    END(1);
+
+    private final int id;
+    private static final Map<Integer, Environment> lookup = new HashMap<>();
+
+    static {
+        for (Environment env : values()) {
+            lookup.put(env.getId(), env);
+        }
+    }
+
+    Environment(int id) {
+        this.id = id;
+    }
+
+    public int getId() {
+        return id;
+    }
+
+
+    public static Environment getEnvironmentById(int id) {
+        return lookup.get(id);
+    }
+}

common/src/main/java/us/myles/ViaVersion/api/minecraft/EulerAngle.java

@@ -0,0 +1,12 @@
+package us.myles.ViaVersion.api.minecraft;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+
+@Data
+@AllArgsConstructor
+public class EulerAngle {
+    private float x;
+    private float y;
+    private float z;
+}

common/src/main/java/us/myles/ViaVersion/api/minecraft/Vector.java

@@ -0,0 +1,12 @@
+package us.myles.ViaVersion.api.minecraft;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+
+@Data
+@AllArgsConstructor
+public class Vector {
+    private int blockX;
+    private int blockY;
+    private int blockZ;
+}

common/src/main/java/us/myles/ViaVersion/api/minecraft/chunks/Chunk.java

@@ -1,5 +1,9 @@
 package us.myles.ViaVersion.api.minecraft.chunks;
 
+import org.spacehq.opennbt.tag.builtin.CompoundTag;
+
+import java.util.List;
+
 public interface Chunk {
     int getX();
 
@@ -14,4 +18,6 @@ public interface Chunk {
     byte[] getBiomeData();
 
     int getBitmask();
+
+    List<CompoundTag> getBlockEntities();
 }

common/src/main/java/us/myles/ViaVersion/api/minecraft/item/Item.java

@@ -0,0 +1,16 @@
+package us.myles.ViaVersion.api.minecraft.item;
+
+import lombok.*;
+import org.spacehq.opennbt.tag.builtin.CompoundTag;
+
+@Getter
+@Setter
+@NoArgsConstructor
+@AllArgsConstructor
+@ToString
+public class Item {
+    private short id;
+    private byte amount;
+    private short data;
+    private CompoundTag tag;
+}

common/src/main/java/us/myles/ViaVersion/api/minecraft/metadata/MetaType.java

@@ -0,0 +1,20 @@
+package us.myles.ViaVersion.api.minecraft.metadata;
+
+import us.myles.ViaVersion.api.type.Type;
+
+public interface MetaType {
+
+    /**
+     * Get the write/read type
+     *
+     * @return Type instance
+     */
+    Type getType();
+
+    /**
+     * Get type id from the specific MetaDataType
+     *
+     * @return Type id as an integer
+     */
+    int getTypeID();
+}

common/src/main/java/us/myles/ViaVersion/api/minecraft/metadata/Metadata.java

@@ -0,0 +1,12 @@
+package us.myles.ViaVersion.api.minecraft.metadata;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+
+@AllArgsConstructor
+@Data
+public class Metadata {
+    private int id;
+    private MetaType metaType;
+    private Object value;
+}

common/src/main/java/us/myles/ViaVersion/api/minecraft/metadata/types/MetaType1_8.java

@@ -1,12 +1,13 @@
-package us.myles.ViaVersion.protocols.protocol1_9to1_8.metadata;
+package us.myles.ViaVersion.api.minecraft.metadata.types;
 
 import lombok.Getter;
 import lombok.RequiredArgsConstructor;
+import us.myles.ViaVersion.api.minecraft.metadata.MetaType;
 import us.myles.ViaVersion.api.type.Type;
 
 @RequiredArgsConstructor
 @Getter
-public enum MetadataTypes {
+public enum MetaType1_8 implements MetaType {
     Byte(0, Type.BYTE),
     Short(1, Type.SHORT),
     Int(2, Type.INT),
@@ -20,7 +21,7 @@ public enum MetadataTypes {
     private final int typeID;
     private final Type type;
 
-    public static MetadataTypes byId(int id) {
+    public static MetaType1_8 byId(int id) {
         return values()[id];
     }
 }

common/src/main/java/us/myles/ViaVersion/api/minecraft/metadata/types/MetaType1_9.java

@@ -1,12 +1,13 @@
-package us.myles.ViaVersion.protocols.protocol1_9to1_8.metadata;
+package us.myles.ViaVersion.api.minecraft.metadata.types;
 
 import lombok.Getter;
 import lombok.RequiredArgsConstructor;
+import us.myles.ViaVersion.api.minecraft.metadata.MetaType;
 import us.myles.ViaVersion.api.type.Type;
 
 @RequiredArgsConstructor
 @Getter
-public enum NewType {
+public enum MetaType1_9 implements MetaType {
     Byte(0, Type.BYTE),
     VarInt(1, Type.VAR_INT),
     Float(2, Type.FLOAT),
@@ -25,7 +26,7 @@ public enum NewType {
     private final int typeID;
     private final Type type;
 
-    public static NewType byId(int id) {
+    public static MetaType1_9 byId(int id) {
         return values()[id];
     }
 

common/src/main/java/us/myles/ViaVersion/api/platform/TaskId.java

@@ -0,0 +1,11 @@
+package us.myles.ViaVersion.api.platform;
+
+public interface TaskId {
+    /**
+     * Returns the actual object represented by this TaskId
+     * Null if task cannot be cancelled.
+     *
+     * @return Platform based Object (don't assume)
+     */
+    Object getObject();
+}

common/src/main/java/us/myles/ViaVersion/api/platform/ViaInjector.java

@@ -0,0 +1,39 @@
+package us.myles.ViaVersion.api.platform;
+
+public interface ViaInjector {
+    /**
+     * Inject into the current Platform
+     *
+     * @throws Exception If there is an error with injecting
+     */
+    void inject() throws Exception;
+
+    /**
+     * Uninject into the current Platform
+     *
+     * @throws Exception If there is an error with uninjecting
+     */
+    void uninject() throws Exception;
+
+    /**
+     * Get the server protocol version
+     *
+     * @return The server protocol integer
+     * @throws Exception If there is an error with getting this info, eg. not binded.
+     */
+    int getServerProtocolVersion() throws Exception;
+
+    /**
+     * Get the name of the encoder for then netty pipeline for this platform.
+     *
+     * @return The name
+     */
+    String getEncoderName();
+
+    /**
+     * Get the name of the decoder for then netty pipeline for this platform.
+     *
+     * @return The name
+     */
+    String getDecoderName();
+}

common/src/main/java/us/myles/ViaVersion/api/platform/ViaPlatform.java

@@ -0,0 +1,143 @@
+package us.myles.ViaVersion.api.platform;
+
+import com.google.gson.JsonObject;
+import us.myles.ViaVersion.api.ViaAPI;
+import us.myles.ViaVersion.api.ViaVersionConfig;
+import us.myles.ViaVersion.api.command.ViaCommandSender;
+import us.myles.ViaVersion.api.configuration.ConfigurationProvider;
+
+import java.util.UUID;
+import java.util.logging.Logger;
+
+/**
+ * ViaPlatform represents a platform ViaVersion runs on
+ *
+ * @param <T> - The player type for the platform, used for API related methods
+ */
+public interface ViaPlatform<T> {
+    /**
+     * Get the logger for this platform
+     *
+     * @return Java Logger (may be a wrapper)
+     */
+    Logger getLogger();
+
+    /**
+     * Get the platform name
+     *
+     * @return Platform Name (simply its name)
+     */
+    String getPlatformName();
+
+    /**
+     * Get the platform version
+     *
+     * @return Platforn version
+     */
+    String getPlatformVersion();
+
+    /**
+     * Get the plugin version
+     *
+     * @return Plugin version as a semver string
+     */
+    String getPluginVersion();
+
+    /**
+     * Run a task Async
+     *
+     * @param runnable The task to run
+     * @return The Task ID
+     */
+    TaskId runAsync(Runnable runnable);
+
+    /**
+     * Run a task Sync
+     *
+     * @param runnable The task to run
+     * @return The Task ID
+     */
+    TaskId runSync(Runnable runnable);
+
+    /**
+     * Run a task at a repeating interval.
+     * Initial interval is the same as repeat.
+     *
+     * @param runnable The task to run
+     * @param ticks    The interval to run it at
+     * @return The Task ID
+     */
+    TaskId runRepeatingSync(Runnable runnable, Long ticks);
+
+    /**
+     * Cancel a task
+     *
+     * @param taskId The task ID to cancel
+     */
+    void cancelTask(TaskId taskId);
+
+    /**
+     * Get the online players
+     *
+     * @return Array of ViaCommandSender
+     */
+    ViaCommandSender[] getOnlinePlayers();
+
+    /**
+     * Send a message to a player
+     *
+     * @param uuid    The player's UUID
+     * @param message The message to send
+     */
+    void sendMessage(UUID uuid, String message);
+
+    /**
+     * Kick a player for a reason
+     *
+     * @param uuid    The player's UUID
+     * @param message The message to kick them with
+     * @return True if it was successful
+     */
+    boolean kickPlayer(UUID uuid, String message);
+
+    /**
+     * Check if the plugin is enabled.
+     *
+     * @return True if it is enabled
+     */
+    boolean isPluginEnabled();
+
+    /**
+     * Get the API for this platform
+     *
+     * @return The API for the platform
+     */
+    ViaAPI<T> getApi();
+
+    /**
+     * Get the config API for this platform
+     *
+     * @return The config API
+     */
+    ViaVersionConfig getConf();
+
+    /**
+     * Get the backend configuration provider for this platform.
+     * (On some platforms this returns the same as getConf())
+     *
+     * @return The configuration provider
+     */
+    ConfigurationProvider getConfigurationProvider();
+
+    /**
+     * Called when a reload happens
+     */
+    void onReload();
+
+    /**
+     * Get the JSON data required for /viaversion dump
+     *
+     * @return The json data
+     */
+    JsonObject getDump();
+}

common/src/main/java/us/myles/ViaVersion/api/platform/ViaPlatformLoader.java

@@ -0,0 +1,8 @@
+package us.myles.ViaVersion.api.platform;
+
+public interface ViaPlatformLoader {
+    /**
+     * Initialise the loading for a platform, eg. registering listeners / providers / events etc.
+     */
+    void load();
+}

common/src/main/java/us/myles/ViaVersion/api/platform/providers/Provider.java

@@ -0,0 +1,4 @@
+package us.myles.ViaVersion.api.platform.providers;
+
+public interface Provider {
+}

common/src/main/java/us/myles/ViaVersion/api/platform/providers/ViaProviders.java

@@ -0,0 +1,37 @@
+package us.myles.ViaVersion.api.platform.providers;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+public class ViaProviders {
+    private final Map<Class<? extends Provider>, Provider> providers = new HashMap<>();
+    private final List<Class<? extends Provider>> lonelyProviders = new ArrayList<>();
+
+    public void require(Class<? extends Provider> provider) {
+        lonelyProviders.add(provider);
+    }
+
+    public <T extends Provider> void register(Class<T> provider, T value) {
+        providers.put(provider, value);
+    }
+
+    public <T extends Provider> void use(Class<T> provider, T value) {
+        if (lonelyProviders.contains(provider)) {
+            lonelyProviders.remove(provider);
+        }
+        providers.put(provider, value);
+    }
+
+    public <T extends Provider> T get(Class<T> provider) {
+        if (providers.containsKey(provider)) {
+            return (T) providers.get(provider);
+        } else {
+            if (lonelyProviders.contains(provider)) {
+                throw new IllegalStateException("There was no provider for " + provider + ", one is required!");
+            }
+            return null;
+        }
+    }
+}