4.9.0 Release

Don't create runnable platform jars anymore, since all they really do is increase build time. Also fix texts and Gradle deprecations. Also also publish common with its shadowed configuration, not the plain java components.

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -71,7 +71,7 @@ body:
     attributes:
       label: Additional Server Info
       description: |
-        Do you use a proxy (eg. BungeeCord)? What software do you use and what plugins?
+        Do you use a proxy (e.g. BungeeCord)? What software do you use and what plugins?
       placeholder: |
         Example: "I also use BungeeCord with the following plugins: x, y, z"
     validations:

.github/workflows/gradle.yml

@@ -1,6 +1,3 @@
-# This workflow will build a Java project with Gradle
-# For more information see: https://help.github.com/actions/language-and-framework-guides/building-and-testing-java-with-gradle
-
 name: Java CI with Gradle
 
 on: [push, pull_request]
@@ -13,16 +10,15 @@ jobs:
     runs-on: ubuntu-22.04
 
     steps:
-    - uses: actions/checkout@v3
-    - uses: gradle/wrapper-validation-action@v1
+    - name: Checkout Repository
+      uses: actions/checkout@v4
+    - name: Validate Gradle Wrapper
+      uses: gradle/wrapper-validation-action@v1
     - name: Set up JDK 11
       uses: actions/setup-java@v3
       with:
         distribution: 'temurin'
         java-version: 11
+        check-latest: true
     - name: Build with Gradle
       run: ./gradlew build
-    - uses: actions/upload-artifact@v3
-      with:
-        name: artifact
-        path: build/libs

.github/workflows/publish.yml

@@ -0,0 +1,27 @@
+name: Publish to Hangar and Modrinth
+on:
+  push:
+    branches:
+      - master
+      - dev
+
+jobs:
+  publish:
+    if: github.repository_owner == 'ViaVersion'
+    runs-on: ubuntu-22.04
+    steps:
+      - name: Checkout Repository
+        uses: actions/checkout@v4
+      - name: Validate Gradle Wrapper
+        uses: gradle/wrapper-validation-action@v1
+      - name: Set up JDK 17
+        uses: actions/setup-java@v3
+        with:
+          distribution: 'temurin'
+          java-version: 17
+          check-latest: true
+      - name: Publish
+        env:
+          HANGAR_TOKEN: ${{ secrets.HANGAR_TOKEN }}
+          MODRINTH_TOKEN: ${{ secrets.MODRINTH_TOKEN }}
+        run: ./gradlew build modrinth publishAllPublicationsToHangar --stacktrace

README.md

@@ -1,49 +1,41 @@
-# ViaVersion - Spigot, Sponge, BungeeCord, Velocity
+# ViaVersion
 
 [![Latest Release](https://img.shields.io/github/v/release/ViaVersion/ViaVersion)](https://viaversion.com)
 [![Build Status](https://github.com/ViaVersion/ViaVersion/actions/workflows/gradle.yml/badge.svg?branch=master)](https://github.com/ViaVersion/ViaVersion/actions)
 [![Discord](https://img.shields.io/badge/chat-on%20discord-blue.svg)](https://viaversion.com/discord)
 
-**Allows the connection of higher client versions to lower server versions**
+**Allows the connection of higher client versions to lower server versions -
+it works on any platform you can think of.**
+
+The base ViaVersion jar runs on Paper, Velocity, Bungee, and Sponge. We also have projects integrating ViaVersion to run
+on Fabric, Forge, or as a standalone proxy to  join from basically any client version on any server version from the
+past decade. **See [HERE](https://github.com/ViaVersion) for an overview of the different Via\* projects.**
 
 Supported Versions:
 
-![Table (https://i.imgur.com/aSjHvQk.png)](https://i.imgur.com/aSjHvQk.png)
-
-On Paper you may also use ProtocolSupport, but ensure you have the right build for your server version.
+![Table (https://i.imgur.com/sTrVnC2.png)](https://i.imgur.com/sTrVnC2.png)
 
 **User Docs:** https://docs.viaversion.com/display/VIAVERSION/
 
-
-Sources
+Releases/Dev Builds
 --------
-**[OpenNBT](https://github.com/ViaVersion/OpenNBT)**
+You can find official releases in the following places:
 
-**[Via Mappings Generator](https://github.com/ViaVersion/Mappings)**
+- **Hangar (for our plugins)**: https://hangar.papermc.io/ViaVersion/ViaVersion
+- **Modrinth (for our mods)**: https://modrinth.com/mod/viaversion
+- **GitHub**: https://github.com/ViaVersion/ViaVersion/releases
 
-**[Mojang mappings](https://minecraft.fandom.com/wiki/Obfuscation_map)** (Thank you, Mojang, very cool)
+Dev builds for **all** of our projects are on our Jenkins server:
 
-**[wiki.vg](https://wiki.vg)** (Used for historic information regarding packet structure, we also contribute back)
-
-**[Burger](https://github.com/Pokechu22/Burger)** (See [PAaaS](https://github.com/Matsv/Paaas))
-
-
-
-Releases / Dev Builds
---------
-You can find official releases here:
-
-https://www.spigotmc.org/resources/viaversion.19254/history
+- **Jenkins**: https://ci.viaversion.com
 
+ViaVersion as a Dependency
 ----------
 
-You can find official dev builds here:
-
-**Jenkins:** https://ci.viaversion.com
-
 **JavaDocs:** https://jd.viaversion.com
 
-**Maven Repository:**
+**Maven:**
+
 ```xml
 <repository>
     <id>viaversion-repo</id>
@@ -51,7 +43,6 @@ You can find official dev builds here:
 </repository>
 ```
 
-**API-artifact:**
 ```xml
 <dependency>
     <groupId>com.viaversion</groupId>
@@ -61,7 +52,17 @@ You can find official dev builds here:
 </dependency>
 ```
 
-Replace the version depending on your needs.
+**Gradle:**
+
+```kotlin
+repositories {
+    maven("https://repo.viaversion.com")
+}
+
+dependencies {
+    compileOnly("com.viaversion:viaversion-api:VERSION") // Replace the version
+}
+```
 
 If you need access to the existing protocol or platform implementations, use the parent artifact `viaversion`.
 Please note the [differences in licensing](#license).
@@ -69,8 +70,8 @@ Please note the [differences in licensing](#license).
 
 Building
 --------
-After cloning this repository, build the project with Gradle by running `./gradlew build` and take the created jar out of
-the `build/libs` directory.
+After cloning this repository, build the project with Gradle by running `./gradlew build` and take the created jar out
+of the `build/libs` directory.
 
 
 Mapping Files
@@ -78,12 +79,21 @@ Mapping Files
 Mapping files are generated and managed in our [Mappings repository](https://github.com/ViaVersion/Mappings).
 
 
+Resources
+--------
+
+- **[Via Mappings Generator](https://github.com/ViaVersion/Mappings)**
+- **[Mojang mappings](https://minecraft.wiki/w/Obfuscation_map)** (Thank you, Mojang, very cool)
+- **[wiki.vg](https://wiki.vg)** (Used for historic information regarding packet structure, we also contribute back)
+- **[Burger](https://github.com/Pokechu22/Burger)** (See [PAaaS](https://github.com/Matsv/Paaas))
+
 License
 --------
-The entirety of the [API directory](api) (including the legacy API directory) is licensed under the MIT License; see [licenses/MIT.md](licenses/MIT.md) for
+The entirety of the [API directory](api) (including the legacy API directory) is licensed under the MIT License;
+see [licenses/MIT.md](licenses/MIT.md) for
 details.
 
-Everything else, unless explicitly stated otherwise, is licensed under the GNU General Public License, including the end
-product as a whole; see [licenses/GPL.md](licenses/GPL.md) for details.
+Everything else, unless explicitly stated otherwise, is licensed under the GNU General Public License v3, including the
+end-product as a whole; see [licenses/GPL.md](licenses/GPL.md) for details.
 
 Special thanks to all our [Contributors](https://github.com/ViaVersion/ViaVersion/graphs/contributors).

api-legacy/src/main/java/us/myles/ViaVersion/api/protocol/ProtocolVersion.java

@@ -83,8 +83,12 @@ public class ProtocolVersion {
     public static final ProtocolVersion v1_18 = register(757, "1.18/1.18.1", new VersionRange("1.18", 0, 1));
     public static final ProtocolVersion v1_18_2 = register(758, "1.18.2");
     public static final ProtocolVersion v1_19 = register(759, "1.19");
-    public static final ProtocolVersion v1_19_1 = register(760, "1.19.1");
+    public static final ProtocolVersion v1_19_1 = register(760, "1.19.1/2", new VersionRange("1.19", 1, 2));
     public static final ProtocolVersion v1_19_3 = register(761, "1.19.3");
+    public static final ProtocolVersion v1_19_4 = register(762, "1.19.4");
+    public static final ProtocolVersion v1_20 = register(763, "1.20/1.20.1", new VersionRange("1.20", 0, 1));
+    public static final ProtocolVersion v1_20_2 = register(764, "1.20.2");
+    public static final ProtocolVersion v1_20_3 = register(765, "1.20.3");
     public static final ProtocolVersion unknown = register(-1, "UNKNOWN");
 
     public static ProtocolVersion register(int version, String name) {

api/build.gradle.kts

@@ -1,11 +1,17 @@
 plugins {
     id("net.kyori.blossom")
-    id("via.shadow-conventions")
+    id("org.jetbrains.gradle.plugin.idea-ext")
 }
 
-blossom {
-    replaceToken("\$VERSION", project.version)
-    replaceToken("\$IMPL_VERSION", "git-ViaVersion-${project.version}:${rootProject.latestCommitHash()}")
+sourceSets {
+    main {
+        blossom {
+            javaSources {
+                property("version", project.version.toString())
+                property("impl_version", "git-ViaVersion-${project.version}:${rootProject.latestCommitHash()}")
+            }
+        }
+    }
 }
 
 dependencies {
@@ -15,7 +21,7 @@ dependencies {
     api(libs.fastutil)
     api(libs.flare)
     api(libs.flareFastutil)
-    api(libs.openNBT)
+    api(libs.vianbt)
     api(libs.gson)
 
     compileOnlyApi(libs.snakeYaml)
@@ -27,3 +33,5 @@ dependencies {
 java {
     withJavadocJar()
 }
+
+publishShadowJar()

api/src/main/java-templates/com/viaversion/viaversion/util/VersionInfo.java

@@ -31,5 +31,14 @@ public final class VersionInfo {
      *
      * @see ViaPlatform#getPluginVersion()
      */
-    public static final String VERSION = "$VERSION";
+    public static final String VERSION = "{{ version }}";
+    private static final String IMPLEMENTATION_VERSION = "{{ impl_version }}";
+
+    public static String getVersion() {
+        return VERSION;
+    }
+
+    public static String getImplementationVersion() {
+        return IMPLEMENTATION_VERSION;
+    }
 }

api/src/main/java/com/viaversion/viaversion/api/ViaAPI.java

@@ -63,7 +63,7 @@ public interface ViaAPI<T> {
      * @return API version incremented with meaningful API changes
      */
     default int apiVersion() {
-        return 19;
+        return 22;
     }
 
     /**
@@ -117,7 +117,7 @@ public interface ViaAPI<T> {
      * Sends a raw packet to the player.
      *
      * @param player the platform's player object, e.g. for Bukkit this is Player
-     * @param packet the packet; you need a VarInt Id, then the packet contents
+     * @param packet the packet; you need a VarInt id, then the packet contents
      * @throws IllegalArgumentException if the player is not injected by Via
      */
     void sendRawPacket(T player, ByteBuf packet);
@@ -126,7 +126,7 @@ public interface ViaAPI<T> {
      * Sends a raw packet to the player.
      *
      * @param uuid   the uuid from the player to send packet
-     * @param packet the packet; you need a VarInt Id, then the packet contents
+     * @param packet the packet; you need a VarInt id, then the packet contents
      * @throws IllegalArgumentException if the player is not injected by Via
      */
     void sendRawPacket(UUID uuid, ByteBuf packet);

api/src/main/java/com/viaversion/viaversion/api/ViaManager.java

@@ -23,6 +23,7 @@
 package com.viaversion.viaversion.api;
 
 import com.viaversion.viaversion.api.command.ViaVersionCommand;
+import com.viaversion.viaversion.api.configuration.ConfigurationProvider;
 import com.viaversion.viaversion.api.connection.ConnectionManager;
 import com.viaversion.viaversion.api.debug.DebugHandler;
 import com.viaversion.viaversion.api.platform.ViaInjector;
@@ -91,6 +92,13 @@ public interface ViaManager {
      */
     Scheduler getScheduler();
 
+    /**
+     * Returns the configuration provider.
+     *
+     * @return the configuration provider
+     */
+    ConfigurationProvider getConfigurationProvider();
+
     /**
      * If debug is enabled, packets and other otherwise suppressed warnings will be logged.
      *
@@ -131,4 +139,12 @@ public interface ViaManager {
      * @param runnable runnable to be executed
      */
     void addEnableListener(Runnable runnable);
+
+    /**
+     * Returns whether the manager has been initialized (and protocols have been loaded).
+     *
+     * @return whether the manager has been initialized
+     */
+    boolean isInitialized();
+
 }

api/src/main/java/com/viaversion/viaversion/api/command/ViaCommandSender.java

@@ -28,7 +28,7 @@ public interface ViaCommandSender {
     /**
      * Check if the sender has a permission.
      *
-     * @param permission Permission string eg. viaversion.admin
+     * @param permission Permission string e.g. viaversion.admin
      * @return True if the sender has the permission
      */
     boolean hasPermission(String permission);

api/src/main/java/com/viaversion/viaversion/api/command/ViaSubCommand.java

@@ -58,7 +58,7 @@ public abstract class ViaSubCommand {
      * @return The permission required to use the commands
      */
     public String permission() {
-        return "viaversion.admin";
+        return "viaversion.admin." + name();
     }
 
     /**

api/src/main/java/com/viaversion/viaversion/api/command/ViaVersionCommand.java

@@ -32,7 +32,7 @@ public interface ViaVersionCommand {
      * @param command Your own SubCommand instance to handle it.
      * @throws Exception throws an exception when the subcommand already exists or if it's not valid, example: spacee
      */
-    void registerSubCommand(ViaSubCommand command) throws Exception;
+    void registerSubCommand(ViaSubCommand command);
 
     /**
      * Check if a subcommand is registered.

api/src/main/java/com/viaversion/viaversion/api/configuration/Config.java

@@ -20,23 +20,34 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
  */
-package com.viaversion.viaversion.api.type.types.minecraft;
+package com.viaversion.viaversion.api.configuration;
 
-import com.viaversion.viaversion.api.minecraft.chunks.Chunk;
-import com.viaversion.viaversion.api.type.Type;
+import java.util.Map;
 
-public abstract class BaseChunkType extends Type<Chunk> {
+public interface Config {
 
-    protected BaseChunkType() {
-        super(Chunk.class);
-    }
+    /**
+     * Reloads the config
+     */
+    void reload();
 
-    protected BaseChunkType(String typeName) {
-        super(typeName, Chunk.class);
-    }
+    /**
+     * Saves the config
+     */
+    void save();
 
-    @Override
-    public Class<? extends Type> getBaseClass() {
-        return BaseChunkType.class;
-    }
+    /**
+     * 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);
+
+    /**
+     * Get all the configuration values
+     *
+     * @return Map with key-values
+     */
+    Map<String, Object> getValues();
 }

api/src/main/java/com/viaversion/viaversion/api/configuration/ConfigurationProvider.java

@@ -22,32 +22,26 @@
  */
 package com.viaversion.viaversion.api.configuration;
 
-import java.util.Map;
+import java.util.Collection;
 
 public interface ConfigurationProvider {
 
     /**
-     * Sets the specified path to the given value.
+     * Registers a config to be saved or reloaded when {@link #reloadConfigs()} is called.
      *
-     * @param path  Path of the object to set.
-     * @param value New value to set the path to
+     * @param config the config to register
      */
-    void set(String path, Object value);
+    void register(Config config);
 
     /**
-     * Saves the config
-     */
-    void saveConfig();
-
-    /**
-     * Reloads the config
-     */
-    void reloadConfig();
-
-    /**
-     * Get all the configuration values
+     * Returns all registered configs.
      *
-     * @return Map with key-values
+     * @return unmodifiable collection of all registered configs
      */
-    Map<String, Object> getValues();
+    Collection<Config> configs();
+
+    /**
+     * Reloads the configuration files.
+     */
+    void reloadConfigs();
 }

api/src/main/java/com/viaversion/viaversion/api/configuration/ViaVersionConfig.java

@@ -30,7 +30,7 @@ import com.viaversion.viaversion.api.protocol.version.BlockedProtocolVersions;
 import it.unimi.dsi.fastutil.ints.IntSet;
 import org.checkerframework.checker.nullness.qual.Nullable;
 
-public interface ViaVersionConfig {
+public interface ViaVersionConfig extends Config {
 
     /**
      * Get if the plugin should check for updates
@@ -87,7 +87,7 @@ public interface ViaVersionConfig {
      * <p>
      * This option requires {@link #isShowShieldWhenSwordInHand()} to be disabled
      *
-     * @return {@code true} if non delayed shield blocking is enabled.
+     * @return {@code true} if non-delayed shield blocking is enabled.
      */
     boolean isNoDelayShieldBlocking();
 
@@ -126,7 +126,7 @@ public interface ViaVersionConfig {
      * Get if the boss bars for 1.9 &amp; 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
+     * @return true if boss bar anti-flickering is enabled
      */
     boolean isBossbarAntiflicker();
 
@@ -256,6 +256,8 @@ public interface ViaVersionConfig {
      */
     boolean is1_13TeamColourFix();
 
+    boolean shouldRegisterUserConnectionOnJoin();
+
     /**
      * Should we fix shift quick move action for 1.12 clients
      *
@@ -382,7 +384,7 @@ public interface ViaVersionConfig {
     boolean isTruncate1_14Books();
 
     /**
-     * Handles left handed info by using unused bit 7 on Client Settings packet
+     * Handles left-handed info by using unused bit 7 on Client Settings packet
      *
      * @return true if enabled
      */
@@ -441,16 +443,24 @@ public interface ViaVersionConfig {
 
     /***
      * Get the world names that should be returned for each Vanilla dimension.
-     * Note that this can be overriden per-user by using {@link UserConnection#put(StorableObject)} with
+     * Note that this can be overridden per-user by using {@link UserConnection#put(StorableObject)} with
      * a custom instance of {@link WorldIdentifiers} for the user's {@link UserConnection}.
      *
      * @return the global map from vanilla dimensions to world name
      */
     WorldIdentifiers get1_16WorldNamesMap();
 
+    /**
+     * Caches light until chunks are unloaded to allow subsequent chunk update packets as opposed to instantly uncaching when the first chunk data is sent.
+     *
+     * @return true if enabled
+     */
     boolean cache1_17Light();
 
-    @Nullable String chatTypeFormat(String translationKey);
-
+    /**
+     * Force-update 1.19.4+ player's inventory when they try to swap armor in a pre-occupied slot.
+     *
+     * @return true if enabled
+     */
     boolean isArmorToggleFix();
 }

api/src/main/java/com/viaversion/viaversion/api/connection/ConnectionManager.java

@@ -65,7 +65,7 @@ public interface ConnectionManager {
 
     /**
      * Returns the UUID from the frontend connection to this proxy server
-     * Returns null when there isn't a server or this connection isn't frontend or it doesn't have an id
+     * Returns null when there isn't a server or this connection isn't frontend, or it doesn't have an id
      * When ViaVersion is reloaded, this method may not return some players.
      * May not return ProtocolSupport players.
      * <p>

api/src/main/java/com/viaversion/viaversion/api/connection/ProtocolInfo.java

@@ -23,6 +23,7 @@
 package com.viaversion.viaversion.api.connection;
 
 import com.viaversion.viaversion.api.protocol.ProtocolPipeline;
+import com.viaversion.viaversion.api.protocol.packet.Direction;
 import com.viaversion.viaversion.api.protocol.packet.State;
 import java.util.UUID;
 import org.checkerframework.checker.nullness.qual.Nullable;
@@ -33,10 +34,63 @@ public interface ProtocolInfo {
      * Returns the protocol state the user is currently in.
      *
      * @return protocol state
+     * @deprecated server and client can be in different states, use {@link #getClientState()} or {@link #getServerState()}
      */
-    State getState();
+    @Deprecated/*(forRemoval = true)*/
+    default State getState() {
+        return this.getServerState();
+    }
 
-    void setState(State state);
+    /**
+     * Returns the protocol state the client is currently in.
+     *
+     * @return the client protocol state
+     */
+    State getClientState();
+
+    /**
+     * Returns the protocol state the server is currently in.
+     *
+     * @return the server protocol state
+     */
+    State getServerState();
+
+    /**
+     * Returns the protocol state for the given direction.
+     *
+     * @param direction protocol direction
+     * @return state for the given direction
+     */
+    default State getState(final Direction direction) {
+        // Return the state the packet is coming from
+        return direction == Direction.CLIENTBOUND ? this.getServerState() : this.getClientState();
+    }
+
+    /**
+     * Sets both client and server state.
+     *
+     * @param state the new protocol state
+     * @see #setClientState(State)
+     * @see #setServerState(State)
+     */
+    default void setState(final State state) {
+        this.setClientState(state);
+        this.setServerState(state);
+    }
+
+    /**
+     * Sets the client protocol state.
+     *
+     * @param clientState the new client protocol state
+     */
+    void setClientState(State clientState);
+
+    /**
+     * Sets the server protocol state.
+     *
+     * @param serverState the new server protocol state
+     */
+    void setServerState(State serverState);
 
     /**
      * Returns the user's protocol version, or -1 if not set.

api/src/main/java/com/viaversion/viaversion/api/connection/StorableObject.java

@@ -38,4 +38,7 @@ public interface StorableObject {
     default boolean clearOnServerSwitch() {
         return true;
     }
+
+    default void onRemove() {
+    }
 }

api/src/main/java/com/viaversion/viaversion/api/data/MappingData.java

@@ -101,6 +101,8 @@ public interface MappingData {
 
     @Nullable Mappings getStatisticsMappings();
 
+    @Nullable Mappings getMenuMappings();
+
     @Nullable Mappings getEnchantmentMappings();
 
     @Nullable FullMappings getEntityMappings();

api/src/main/java/com/viaversion/viaversion/api/data/MappingDataBase.java

@@ -52,6 +52,7 @@ public class MappingDataBase implements MappingData {
     protected Mappings statisticsMappings;
     protected Mappings enchantmentMappings;
     protected Mappings paintingMappings;
+    protected Mappings menuMappings;
     protected Map<RegistryType, List<TagData>> tags;
 
     public MappingDataBase(final String unmappedVersion, final String mappedVersion) {
@@ -71,6 +72,7 @@ public class MappingDataBase implements MappingData {
         blockEntityMappings = loadMappings(data, "blockentities");
         soundMappings = loadMappings(data, "sounds");
         statisticsMappings = loadMappings(data, "statistics");
+        menuMappings = loadMappings(data, "menus");
         enchantmentMappings = loadMappings(data, "enchantments");
         paintingMappings = loadMappings(data, "paintings");
         itemMappings = loadBiMappings(data, "items");
@@ -202,6 +204,11 @@ public class MappingDataBase implements MappingData {
         return statisticsMappings;
     }
 
+    @Override
+    public @Nullable Mappings getMenuMappings() {
+        return menuMappings;
+    }
+
     @Override
     public @Nullable Mappings getEnchantmentMappings() {
         return enchantmentMappings;
@@ -236,7 +243,9 @@ public class MappingDataBase implements MappingData {
      */
     protected int checkValidity(final int id, final int mappedId, final String type) {
         if (mappedId == -1) {
-            getLogger().warning(String.format("Missing %s %s for %s %s %d", mappedVersion, type, unmappedVersion, type, id));
+            if (!Via.getConfig().isSuppressConversionWarnings()) {
+                getLogger().warning(String.format("Missing %s %s for %s %s %d", mappedVersion, type, unmappedVersion, type, id));
+            }
             return 0;
         }
         return mappedId;

api/src/main/java/com/viaversion/viaversion/api/data/entity/EntityTracker.java

@@ -87,7 +87,7 @@ public interface EntityTracker {
      *
      * @param id entity id
      * @return stored entity data if an entity with the id is tracked, else null
-     * @throws IllegalArgumentException if entitiy data storage has not been enabled via the implementation
+     * @throws IllegalArgumentException if entity data storage has not been enabled via the implementation
      */
     @Nullable StoredEntityData entityData(int id);
 
@@ -96,7 +96,7 @@ public interface EntityTracker {
      *
      * @param id entity id
      * @return stored entity data if it has previously been initialized by {@link #entityData(int)}
-     * @throws IllegalArgumentException if entitiy data storage has not been enabled via the implementation
+     * @throws IllegalArgumentException if entity data storage has not been enabled via the implementation
      */
     @Nullable StoredEntityData entityDataIfPresent(int id);
 

api/src/main/java/com/viaversion/viaversion/api/legacy/bossbar/BossBar.java

@@ -66,7 +66,7 @@ public interface BossBar {
     BossColor getColor();
 
     /**
-     * Yay colors!
+     * Yay, colors!
      *
      * @param color Whatever color you want!
      * @return The BossBar object

api/src/main/java/com/viaversion/viaversion/api/minecraft/ClientWorld.java

@@ -0,0 +1,53 @@
+/*
+ * This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
+ * Copyright (C) 2016-2023 ViaVersion and contributors
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+package com.viaversion.viaversion.api.minecraft;
+
+import com.viaversion.viaversion.api.connection.StorableObject;
+import com.viaversion.viaversion.api.connection.UserConnection;
+import org.checkerframework.checker.nullness.qual.Nullable;
+
+/**
+ * Stored up until 1.14 to be used in chunk sending.
+ */
+public class ClientWorld implements StorableObject {
+    private Environment environment;
+
+    @Deprecated/*(forRemoval = true)*/
+    public ClientWorld(final UserConnection connection) {
+    }
+
+    public ClientWorld() {
+    }
+
+    public ClientWorld(final Environment environment) {
+        this.environment = environment;
+    }
+
+    public @Nullable Environment getEnvironment() {
+        return environment;
+    }
+
+    public void setEnvironment(final int environmentId) {
+        this.environment = Environment.getEnvironmentById(environmentId);
+    }
+}

api/src/main/java/com/viaversion/viaversion/api/minecraft/Particle.java

@@ -20,17 +20,19 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
  */
-package com.viaversion.viaversion.api.type.types;
+package com.viaversion.viaversion.api.minecraft;
 
+import com.viaversion.viaversion.api.protocol.packet.PacketWrapper;
 import com.viaversion.viaversion.api.type.Type;
+import io.netty.buffer.ByteBuf;
 import java.util.ArrayList;
 import java.util.List;
 
-public class Particle {
-    private List<ParticleData> arguments = new ArrayList<>(4);
+public final class Particle {
+    private final List<ParticleData<?>> arguments = new ArrayList<>(4);
     private int id;
 
-    public Particle(int id) {
+    public Particle(final int id) {
         this.id = id;
     }
 
@@ -38,50 +40,67 @@ public class Particle {
         return id;
     }
 
-    public void setId(int id) {
+    public void setId(final int id) {
         this.id = id;
     }
 
-    public List<ParticleData> getArguments() {
+    public <T> ParticleData<T> getArgument(final int index) {
+        //noinspection unchecked
+        return (ParticleData<T>) arguments.get(index);
+    }
+
+    public <T> ParticleData<T> removeArgument(final int index) {
+        //noinspection unchecked
+        return (ParticleData<T>) arguments.remove(index);
+    }
+
+    public List<ParticleData<?>> getArguments() {
         return arguments;
     }
 
-    @Deprecated/*(forRemoval = true)*/
-    public void setArguments(List<ParticleData> arguments) {
-        this.arguments = arguments;
+    public <T> void add(final Type<T> type, final T value) {
+        arguments.add(new ParticleData<>(type, value));
     }
 
-    public <T> void add(Type<T> type, T value) {
-        arguments.add(new ParticleData(type, value));
+    public <T> void add(final int index, final Type<T> type, final T value) {
+        arguments.add(index, new ParticleData<>(type, value));
     }
 
-    public static class ParticleData {
-        private Type type;
-        private Object value;
+    public static final class ParticleData<T> {
+        private final Type<T> type;
+        private T value;
 
-        public ParticleData(Type type, Object value) {
+        public ParticleData(final Type<T> type, final T value) {
             this.type = type;
             this.value = value;
         }
 
-        public Type getType() {
+        public Type<T> getType() {
             return type;
         }
 
-        public void setType(Type type) {
-            this.type = type;
-        }
-
-        public Object getValue() {
+        public T getValue() {
             return value;
         }
 
-        public <T> T get() {
-            return (T) value;
+        public void setValue(final T value) {
+            this.value = value;
         }
 
-        public void setValue(Object value) {
-            this.value = value;
+        public void write(final ByteBuf buf) throws Exception {
+            type.write(buf, value);
+        }
+
+        public void write(final PacketWrapper wrapper) {
+            wrapper.write(type, value);
+        }
+
+        @Override
+        public String toString() {
+            return "ParticleData{" +
+                    "type=" + type +
+                    ", value=" + value +
+                    '}';
         }
     }
 }

api/src/main/java/com/viaversion/viaversion/api/minecraft/Quaternion.java

@@ -50,4 +50,14 @@ public final class Quaternion {
     public float w() {
         return w;
     }
+
+    @Override
+    public String toString() {
+        return "Quaternion{" +
+                "x=" + x +
+                ", y=" + y +
+                ", z=" + z +
+                ", w=" + w +
+                '}';
+    }
 }

api/src/main/java/com/viaversion/viaversion/api/minecraft/blockentity/BlockEntity.java

@@ -27,6 +27,10 @@ import org.checkerframework.checker.nullness.qual.Nullable;
 
 public interface BlockEntity {
 
+    static byte pack(int sectionX, int sectionZ) {
+        return (byte) (((sectionX) & 15) << 4 | (sectionZ & 15));
+    }
+
     default byte sectionX() {
         return (byte) ((packedXZ() >> 4) & 15);
     }

api/src/main/java/com/viaversion/viaversion/api/minecraft/chunks/ChunkSectionLightImpl.java

@@ -47,6 +47,11 @@ public class ChunkSectionLightImpl implements ChunkSectionLight {
 
     @Override
     public void setSkyLight(byte[] data) {
+        if (data == null) {
+            this.skyLight = null;
+            return;
+        }
+
         if (data.length != LIGHT_LENGTH) throw new IllegalArgumentException("Data length != " + LIGHT_LENGTH);
         if (this.skyLight == null) {
             this.skyLight = new NibbleArray(data);

api/src/main/java/com/viaversion/viaversion/api/minecraft/chunks/DataPaletteImpl.java

@@ -29,21 +29,24 @@ import it.unimi.dsi.fastutil.ints.IntList;
 
 public final class DataPaletteImpl implements DataPalette {
 
+    private static final int DEFAULT_INITIAL_SIZE = 16;
+
     private final IntList palette;
     private final Int2IntMap inversePalette;
-    private final int[] values;
     private final int sizeBits;
+    private ChunkData values;
 
     public DataPaletteImpl(final int valuesLength) {
-        this(valuesLength, 8);
+        this(valuesLength, DEFAULT_INITIAL_SIZE);
     }
 
-    public DataPaletteImpl(final int valuesLength, final int expectedPaletteLength) {
-        this.values = new int[valuesLength];
+    public DataPaletteImpl(final int valuesLength, final int initialSize) {
+        values = new EmptyChunkData(valuesLength);
         sizeBits = Integer.numberOfTrailingZeros(valuesLength) / 3;
         // Pre-size the palette array/map
-        palette = new IntArrayList(expectedPaletteLength);
-        inversePalette = new Int2IntOpenHashMap(expectedPaletteLength);
+        palette = new IntArrayList(initialSize);
+        // To get an initial table size of initialSize, need to scale it down by load factor.
+        inversePalette = new Int2IntOpenHashMap((int) (initialSize * Int2IntOpenHashMap.DEFAULT_LOAD_FACTOR));
         inversePalette.defaultReturnValue(-1);
     }
 
@@ -54,7 +57,7 @@ public final class DataPaletteImpl implements DataPalette {
 
     @Override
     public int idAt(final int sectionCoordinate) {
-        final int index = values[sectionCoordinate];
+        final int index = values.get(sectionCoordinate);
         return palette.getInt(index);
     }
 
@@ -67,17 +70,17 @@ public final class DataPaletteImpl implements DataPalette {
             inversePalette.put(id, index);
         }
 
-        values[sectionCoordinate] = index;
+        values.set(sectionCoordinate, index);
     }
 
     @Override
     public int paletteIndexAt(final int packedCoordinate) {
-        return values[packedCoordinate];
+        return values.get(packedCoordinate);
     }
 
     @Override
     public void setPaletteIndexAt(final int sectionCoordinate, final int index) {
-        values[sectionCoordinate] = index;
+        values.set(sectionCoordinate, index);
     }
 
     @Override
@@ -131,4 +134,77 @@ public final class DataPaletteImpl implements DataPalette {
         palette.clear();
         inversePalette.clear();
     }
+
+    interface ChunkData {
+        int get(int idx);
+        void set(int idx, int val);
+    }
+
+    private class EmptyChunkData implements ChunkData {
+
+        private final int size;
+
+        public EmptyChunkData(int size) {
+            this.size = size;
+        }
+
+        @Override
+        public int get(int idx) {
+            return 0;
+        }
+
+        @Override
+        public void set(int idx, int val) {
+            if (val != 0) {
+                values = new ByteChunkData(size);
+                values.set(idx, val);
+            }
+        }
+    }
+
+    private class ByteChunkData implements ChunkData {
+        private final byte[] data;
+
+        public ByteChunkData(int size) {
+            this.data = new byte[size];
+        }
+
+        @Override
+        public int get(int idx) {
+            return data[idx] & 0xFF;
+        }
+
+        @Override
+        public void set(int idx, int val) {
+            // Overflowed size of byte (over 256 different materials), go up to short
+            if (val > 0xFF) {
+                values = new ShortChunkData(data);
+                values.set(idx, val);
+                return;
+            }
+            data[idx] = (byte) val;
+        }
+    }
+
+    private static class ShortChunkData implements ChunkData {
+        private final short[] data;
+
+        public ShortChunkData(byte[] data) {
+            this.data = new short[data.length];
+            for (int i = 0; i < data.length; i++) {
+                this.data[i] = (short) (data[i] & 0xFF);
+            }
+        }
+
+        @Override
+        public int get(int idx) {
+            return data[idx];
+        }
+
+        @Override
+        public void set(int idx, int val) {
+            data[idx] = (short) val;
+        }
+    }
+
 }

api/src/main/java/com/viaversion/viaversion/api/minecraft/entities/EntityTypes1_10.java

@@ -28,7 +28,7 @@ import java.util.Map;
 import java.util.Optional;
 
 // 1.10 Entity / Object ids
-public class Entity1_10Types {
+public class EntityTypes1_10 {
 
     public static EntityType getTypeFromId(int typeID, boolean isObject) {
         Optional<EntityType> type;

api/src/main/java/com/viaversion/viaversion/api/minecraft/entities/EntityTypes1_11.java

@@ -28,7 +28,7 @@ import java.util.Map;
 import java.util.Optional;
 
 // 1.11 Entity / Object ids
-public class Entity1_11Types {
+public class EntityTypes1_11 {
 
     public static EntityType getTypeFromId(int typeID, boolean isObject) {
         Optional<EntityType> type;

api/src/main/java/com/viaversion/viaversion/api/minecraft/entities/EntityTypes1_12.java

@@ -29,7 +29,7 @@ import java.util.Map;
 import java.util.Optional;
 
 // 1.12 Entity / Object taken from https://github.com/Matsv/ViaBackwards/blob/master/core/src/main/java/nl/matsv/viabackwards/api/entities/types/EntityType1_12.java
-public class Entity1_12Types {
+public class EntityTypes1_12 {
 
     public static EntityType getTypeFromId(int typeID, boolean isObject) {
         Optional<EntityType> type;

api/src/main/java/com/viaversion/viaversion/api/minecraft/entities/EntityTypes1_13.java

@@ -27,7 +27,7 @@ import java.util.HashMap;
 import java.util.Map;
 import java.util.Optional;
 
-public class Entity1_13Types {
+public class EntityTypes1_13 {
 
     public static EntityType getTypeFromId(int typeID, boolean isObject) {
         Optional<EntityType> type;

api/src/main/java/com/viaversion/viaversion/api/minecraft/entities/EntityTypes1_14.java

@@ -24,7 +24,7 @@ package com.viaversion.viaversion.api.minecraft.entities;
 
 import com.viaversion.viaversion.util.EntityTypeUtil;
 
-public enum Entity1_14Types implements EntityType {
+public enum EntityTypes1_14 implements EntityType {
 
     ENTITY(-1),
 
@@ -204,12 +204,12 @@ public enum Entity1_14Types implements EntityType {
     private final int id;
     private final EntityType parent;
 
-    Entity1_14Types(int id) {
+    EntityTypes1_14(int id) {
         this.id = id;
         this.parent = null;
     }
 
-    Entity1_14Types(int id, EntityType parent) {
+    EntityTypes1_14(int id, EntityType parent) {
         this.id = id;
         this.parent = parent;
     }

api/src/main/java/com/viaversion/viaversion/api/minecraft/entities/EntityTypes1_15.java

@@ -24,7 +24,7 @@ package com.viaversion.viaversion.api.minecraft.entities;
 
 import com.viaversion.viaversion.util.EntityTypeUtil;
 
-public enum Entity1_15Types implements EntityType {
+public enum EntityTypes1_15 implements EntityType {
 
     ENTITY(-1),
 
@@ -206,12 +206,12 @@ public enum Entity1_15Types implements EntityType {
     private final int id;
     private final EntityType parent;
 
-    Entity1_15Types(int id) {
+    EntityTypes1_15(int id) {
         this.id = id;
         this.parent = null;
     }
 
-    Entity1_15Types(int id, EntityType parent) {
+    EntityTypes1_15(int id, EntityType parent) {
         this.id = id;
         this.parent = parent;
     }

api/src/main/java/com/viaversion/viaversion/api/minecraft/entities/EntityTypes1_16.java

@@ -24,7 +24,7 @@ package com.viaversion.viaversion.api.minecraft.entities;
 
 import com.viaversion.viaversion.util.EntityTypeUtil;
 
-public enum Entity1_16Types implements EntityType {
+public enum EntityTypes1_16 implements EntityType {
 
     ENTITY(-1),
 
@@ -211,12 +211,12 @@ public enum Entity1_16Types implements EntityType {
     private final int id;
     private final EntityType parent;
 
-    Entity1_16Types(int id) {
+    EntityTypes1_16(int id) {
         this.id = id;
         this.parent = null;
     }
 
-    Entity1_16Types(int id, EntityType parent) {
+    EntityTypes1_16(int id, EntityType parent) {
         this.id = id;
         this.parent = parent;
     }

api/src/main/java/com/viaversion/viaversion/api/minecraft/entities/EntityTypes1_16_2.java

@@ -24,7 +24,7 @@ package com.viaversion.viaversion.api.minecraft.entities;
 
 import com.viaversion.viaversion.util.EntityTypeUtil;
 
-public enum Entity1_16_2Types implements EntityType {
+public enum EntityTypes1_16_2 implements EntityType {
 
     ENTITY(-1),
 
@@ -215,12 +215,12 @@ public enum Entity1_16_2Types implements EntityType {
     private final int id;
     private final EntityType parent;
 
-    Entity1_16_2Types(int id) {
+    EntityTypes1_16_2(int id) {
         this.id = id;
         this.parent = null;
     }
 
-    Entity1_16_2Types(int id, EntityType parent) {
+    EntityTypes1_16_2(int id, EntityType parent) {
         this.id = id;
         this.parent = parent;
     }

api/src/main/java/com/viaversion/viaversion/api/minecraft/entities/EntityTypes1_17.java

@@ -24,7 +24,7 @@ package com.viaversion.viaversion.api.minecraft.entities;
 
 import com.viaversion.viaversion.util.EntityTypeUtil;
 
-public enum Entity1_17Types implements EntityType {
+public enum EntityTypes1_17 implements EntityType {
 
     ENTITY(-1),
 
@@ -220,12 +220,12 @@ public enum Entity1_17Types implements EntityType {
     private final int id;
     private final EntityType parent;
 
-    Entity1_17Types(int id) {
+    EntityTypes1_17(int id) {
         this.id = id;
         this.parent = null;
     }
 
-    Entity1_17Types(int id, EntityType parent) {
+    EntityTypes1_17(int id, EntityType parent) {
         this.id = id;
         this.parent = parent;
     }

api/src/main/java/com/viaversion/viaversion/api/minecraft/entities/EntityTypes1_19.java

@@ -28,7 +28,7 @@ import com.viaversion.viaversion.util.EntityTypeUtil;
 import java.util.Locale;
 import org.checkerframework.checker.nullness.qual.Nullable;
 
-public enum Entity1_19Types implements EntityType {
+public enum EntityTypes1_19 implements EntityType {
 
     ENTITY(null, null),
 
@@ -229,12 +229,12 @@ public enum Entity1_19Types implements EntityType {
     private final String identifier;
     private int id = -1;
 
-    Entity1_19Types(final EntityType parent) {
+    EntityTypes1_19(final EntityType parent) {
         this.parent = parent;
         this.identifier = "minecraft:" + name().toLowerCase(Locale.ROOT);
     }
 
-    Entity1_19Types(final EntityType parent, @Nullable final String identifier) {
+    EntityTypes1_19(final EntityType parent, @Nullable final String identifier) {
         this.parent = parent;
         this.identifier = identifier;
     }

api/src/main/java/com/viaversion/viaversion/api/minecraft/entities/EntityTypes1_19_3.java

@@ -28,7 +28,7 @@ import com.viaversion.viaversion.util.EntityTypeUtil;
 import java.util.Locale;
 import org.checkerframework.checker.nullness.qual.Nullable;
 
-public enum Entity1_19_3Types implements EntityType {
+public enum EntityTypes1_19_3 implements EntityType {
 
     ENTITY(null, null),
 
@@ -230,12 +230,12 @@ public enum Entity1_19_3Types implements EntityType {
     private final String identifier;
     private int id = -1;
 
-    Entity1_19_3Types(final EntityType parent) {
+    EntityTypes1_19_3(final EntityType parent) {
         this.parent = parent;
         this.identifier = "minecraft:" + name().toLowerCase(Locale.ROOT);
     }
 
-    Entity1_19_3Types(final EntityType parent, @Nullable final String identifier) {
+    EntityTypes1_19_3(final EntityType parent, @Nullable final String identifier) {
         this.parent = parent;
         this.identifier = identifier;
     }

api/src/main/java/com/viaversion/viaversion/api/minecraft/entities/EntityTypes1_19_4.java

@@ -28,7 +28,7 @@ import com.viaversion.viaversion.util.EntityTypeUtil;
 import java.util.Locale;
 import org.checkerframework.checker.nullness.qual.Nullable;
 
-public enum Entity1_19_4Types implements EntityType {
+public enum EntityTypes1_19_4 implements EntityType {
 
     ENTITY(null, null),
 
@@ -237,12 +237,12 @@ public enum Entity1_19_4Types implements EntityType {
     private final String identifier;
     private int id = -1;
 
-    Entity1_19_4Types(final EntityType parent) {
+    EntityTypes1_19_4(final EntityType parent) {
         this.parent = parent;
         this.identifier = "minecraft:" + name().toLowerCase(Locale.ROOT);
     }
 
-    Entity1_19_4Types(final EntityType parent, @Nullable final String identifier) {
+    EntityTypes1_19_4(final EntityType parent, @Nullable final String identifier) {
         this.parent = parent;
         this.identifier = identifier;
     }

api/src/main/java/com/viaversion/viaversion/api/minecraft/entities/EntityTypes1_20_3.java

@@ -0,0 +1,283 @@
+/*
+ * This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
+ * Copyright (C) 2016-2023 ViaVersion and contributors
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+package com.viaversion.viaversion.api.minecraft.entities;
+
+import com.google.common.base.Preconditions;
+import com.viaversion.viaversion.api.protocol.Protocol;
+import com.viaversion.viaversion.util.EntityTypeUtil;
+import java.util.Locale;
+import org.checkerframework.checker.nullness.qual.Nullable;
+
+public enum EntityTypes1_20_3 implements EntityType {
+
+    ENTITY(null, null),
+
+    AREA_EFFECT_CLOUD(ENTITY),
+    END_CRYSTAL(ENTITY),
+    EVOKER_FANGS(ENTITY),
+    EXPERIENCE_ORB(ENTITY),
+    EYE_OF_ENDER(ENTITY),
+    FALLING_BLOCK(ENTITY),
+    FIREWORK_ROCKET(ENTITY),
+    ITEM(ENTITY),
+    LLAMA_SPIT(ENTITY),
+    TNT(ENTITY),
+    SHULKER_BULLET(ENTITY),
+    FISHING_BOBBER(ENTITY),
+
+    LIVINGENTITY(ENTITY, null),
+    ARMOR_STAND(LIVINGENTITY),
+    MARKER(ENTITY),
+    PLAYER(LIVINGENTITY),
+
+    DISPLAY(ENTITY, null),
+    BLOCK_DISPLAY(DISPLAY),
+    ITEM_DISPLAY(DISPLAY),
+    TEXT_DISPLAY(DISPLAY),
+    INTERACTION(ENTITY),
+
+    ABSTRACT_INSENTIENT(LIVINGENTITY, null),
+    ENDER_DRAGON(ABSTRACT_INSENTIENT),
+
+    BEE(ABSTRACT_INSENTIENT),
+
+    ABSTRACT_CREATURE(ABSTRACT_INSENTIENT, null),
+
+    ABSTRACT_AGEABLE(ABSTRACT_CREATURE, null),
+    VILLAGER(ABSTRACT_AGEABLE),
+    WANDERING_TRADER(ABSTRACT_AGEABLE),
+
+    // Animals
+    ABSTRACT_ANIMAL(ABSTRACT_AGEABLE, null),
+    AXOLOTL(ABSTRACT_ANIMAL),
+    DOLPHIN(ABSTRACT_INSENTIENT),
+    CHICKEN(ABSTRACT_ANIMAL),
+    COW(ABSTRACT_ANIMAL),
+    MOOSHROOM(COW),
+    PANDA(ABSTRACT_INSENTIENT),
+    PIG(ABSTRACT_ANIMAL),
+    POLAR_BEAR(ABSTRACT_ANIMAL),
+    RABBIT(ABSTRACT_ANIMAL),
+    SHEEP(ABSTRACT_ANIMAL),
+    TURTLE(ABSTRACT_ANIMAL),
+    FOX(ABSTRACT_ANIMAL),
+    FROG(ABSTRACT_ANIMAL),
+    GOAT(ABSTRACT_ANIMAL),
+    SNIFFER(ABSTRACT_ANIMAL),
+
+    ABSTRACT_TAMEABLE_ANIMAL(ABSTRACT_ANIMAL, null),
+    CAT(ABSTRACT_TAMEABLE_ANIMAL),
+    OCELOT(ABSTRACT_TAMEABLE_ANIMAL),
+    WOLF(ABSTRACT_TAMEABLE_ANIMAL),
+
+    ABSTRACT_PARROT(ABSTRACT_TAMEABLE_ANIMAL, null),
+    PARROT(ABSTRACT_PARROT),
+
+    // Horses
+    ABSTRACT_HORSE(ABSTRACT_ANIMAL, null),
+    CHESTED_HORSE(ABSTRACT_HORSE, null),
+    DONKEY(CHESTED_HORSE),
+    MULE(CHESTED_HORSE),
+    LLAMA(CHESTED_HORSE),
+    TRADER_LLAMA(CHESTED_HORSE),
+    HORSE(ABSTRACT_HORSE),
+    SKELETON_HORSE(ABSTRACT_HORSE),
+    ZOMBIE_HORSE(ABSTRACT_HORSE),
+    CAMEL(ABSTRACT_HORSE),
+
+    // Golem
+    ABSTRACT_GOLEM(ABSTRACT_CREATURE, null),
+    SNOW_GOLEM(ABSTRACT_GOLEM),
+    IRON_GOLEM(ABSTRACT_GOLEM),
+    SHULKER(ABSTRACT_GOLEM),
+
+    // Fish
+    ABSTRACT_FISHES(ABSTRACT_CREATURE, null),
+    COD(ABSTRACT_FISHES),
+    PUFFERFISH(ABSTRACT_FISHES),
+    SALMON(ABSTRACT_FISHES),
+    TROPICAL_FISH(ABSTRACT_FISHES),
+
+    // Monsters
+    ABSTRACT_MONSTER(ABSTRACT_CREATURE, null),
+    BLAZE(ABSTRACT_MONSTER),
+    CREEPER(ABSTRACT_MONSTER),
+    ENDERMITE(ABSTRACT_MONSTER),
+    ENDERMAN(ABSTRACT_MONSTER),
+    GIANT(ABSTRACT_MONSTER),
+    SILVERFISH(ABSTRACT_MONSTER),
+    VEX(ABSTRACT_MONSTER),
+    WITCH(ABSTRACT_MONSTER),
+    WITHER(ABSTRACT_MONSTER),
+    RAVAGER(ABSTRACT_MONSTER),
+    BREEZE(ABSTRACT_MONSTER),
+
+    ABSTRACT_PIGLIN(ABSTRACT_MONSTER, null),
+
+    PIGLIN(ABSTRACT_PIGLIN),
+    PIGLIN_BRUTE(ABSTRACT_PIGLIN),
+
+    HOGLIN(ABSTRACT_ANIMAL),
+    STRIDER(ABSTRACT_ANIMAL),
+    TADPOLE(ABSTRACT_FISHES),
+    ZOGLIN(ABSTRACT_MONSTER),
+    WARDEN(ABSTRACT_MONSTER),
+
+    // Illagers
+    ABSTRACT_ILLAGER_BASE(ABSTRACT_MONSTER, null),
+    ABSTRACT_EVO_ILLU_ILLAGER(ABSTRACT_ILLAGER_BASE, null),
+    EVOKER(ABSTRACT_EVO_ILLU_ILLAGER),
+    ILLUSIONER(ABSTRACT_EVO_ILLU_ILLAGER),
+    VINDICATOR(ABSTRACT_ILLAGER_BASE),
+    PILLAGER(ABSTRACT_ILLAGER_BASE),
+
+    // Skeletons
+    ABSTRACT_SKELETON(ABSTRACT_MONSTER, null),
+    SKELETON(ABSTRACT_SKELETON),
+    STRAY(ABSTRACT_SKELETON),
+    WITHER_SKELETON(ABSTRACT_SKELETON),
+
+    // Guardians
+    GUARDIAN(ABSTRACT_MONSTER),
+    ELDER_GUARDIAN(GUARDIAN),
+
+    // Spiders
+    SPIDER(ABSTRACT_MONSTER),
+    CAVE_SPIDER(SPIDER),
+
+    // Zombies
+    ZOMBIE(ABSTRACT_MONSTER),
+    DROWNED(ZOMBIE),
+    HUSK(ZOMBIE),
+    ZOMBIFIED_PIGLIN(ZOMBIE),
+    ZOMBIE_VILLAGER(ZOMBIE),
+
+    // Flying entities
+    ABSTRACT_FLYING(ABSTRACT_INSENTIENT, null),
+    GHAST(ABSTRACT_FLYING),
+    PHANTOM(ABSTRACT_FLYING),
+
+    ABSTRACT_AMBIENT(ABSTRACT_INSENTIENT, null),
+    BAT(ABSTRACT_AMBIENT),
+    ALLAY(ABSTRACT_CREATURE),
+
+    ABSTRACT_WATERMOB(ABSTRACT_INSENTIENT, null),
+    SQUID(ABSTRACT_WATERMOB),
+    GLOW_SQUID(SQUID),
+
+    // Slimes
+    SLIME(ABSTRACT_INSENTIENT),
+    MAGMA_CUBE(SLIME),
+
+    // Hangable objects
+    ABSTRACT_HANGING(ENTITY, null),
+    LEASH_KNOT(ABSTRACT_HANGING),
+    ITEM_FRAME(ABSTRACT_HANGING),
+    GLOW_ITEM_FRAME(ITEM_FRAME),
+    PAINTING(ABSTRACT_HANGING),
+
+    ABSTRACT_LIGHTNING(ENTITY, null),
+    LIGHTNING_BOLT(ABSTRACT_LIGHTNING),
+
+    // Arrows
+    ABSTRACT_ARROW(ENTITY, null),
+    ARROW(ABSTRACT_ARROW),
+    SPECTRAL_ARROW(ABSTRACT_ARROW),
+    TRIDENT(ABSTRACT_ARROW),
+
+    // Fireballs
+    ABSTRACT_FIREBALL(ENTITY, null),
+    DRAGON_FIREBALL(ABSTRACT_FIREBALL),
+    FIREBALL(ABSTRACT_FIREBALL),
+    SMALL_FIREBALL(ABSTRACT_FIREBALL),
+    WITHER_SKULL(ABSTRACT_FIREBALL),
+
+    // Projectiles
+    PROJECTILE_ABSTRACT(ENTITY, null),
+    SNOWBALL(PROJECTILE_ABSTRACT),
+    ENDER_PEARL(PROJECTILE_ABSTRACT),
+    EGG(PROJECTILE_ABSTRACT),
+    POTION(PROJECTILE_ABSTRACT),
+    EXPERIENCE_BOTTLE(PROJECTILE_ABSTRACT),
+    WIND_CHARGE(PROJECTILE_ABSTRACT),
+
+    // Vehicles
+    MINECART_ABSTRACT(ENTITY, null),
+    CHESTED_MINECART_ABSTRACT(MINECART_ABSTRACT, null),
+    CHEST_MINECART(CHESTED_MINECART_ABSTRACT),
+    HOPPER_MINECART(CHESTED_MINECART_ABSTRACT),
+    MINECART(MINECART_ABSTRACT),
+    FURNACE_MINECART(MINECART_ABSTRACT),
+    COMMAND_BLOCK_MINECART(MINECART_ABSTRACT),
+    TNT_MINECART(MINECART_ABSTRACT),
+    SPAWNER_MINECART(MINECART_ABSTRACT),
+    BOAT(ENTITY),
+    CHEST_BOAT(BOAT);
+
+    private static final EntityType[] TYPES = EntityTypeUtil.createSizedArray(values());
+    private final EntityType parent;
+    private final String identifier;
+    private int id = -1;
+
+    EntityTypes1_20_3(final EntityType parent) {
+        this.parent = parent;
+        this.identifier = "minecraft:" + name().toLowerCase(Locale.ROOT);
+    }
+
+    EntityTypes1_20_3(final EntityType parent, @Nullable final String identifier) {
+        this.parent = parent;
+        this.identifier = identifier;
+    }
+
+    @Override
+    public int getId() {
+        if (id == -1) {
+            throw new IllegalStateException("Ids have not been initialized yet (type " + name() + ")");
+        }
+        return id;
+    }
+
+    @Override
+    public String identifier() {
+        Preconditions.checkArgument(identifier != null, "Called identifier method on abstract type");
+        return identifier;
+    }
+
+    @Override
+    public @Nullable EntityType getParent() {
+        return parent;
+    }
+
+    @Override
+    public boolean isAbstractType() {
+        return identifier == null;
+    }
+
+    public static EntityType getTypeFromId(final int typeId) {
+        return EntityTypeUtil.getTypeFromId(TYPES, typeId, ENTITY);
+    }
+
+    public static void initialize(final Protocol<?, ?, ?, ?> protocol) {
+        EntityTypeUtil.initialize(values(), TYPES, protocol, (type, id) -> type.id = id);
+    }
+}

api/src/main/java/com/viaversion/viaversion/api/minecraft/metadata/ChunkPosition.java

@@ -0,0 +1,89 @@
+/*
+ * This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
+ * Copyright (C) 2016-2023 ViaVersion and contributors
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+package com.viaversion.viaversion.api.minecraft.metadata;
+
+import java.util.Objects;
+
+public final class ChunkPosition {
+    private final int chunkX;
+    private final int chunkZ;
+
+    public ChunkPosition(final int chunkX, final int chunkZ) {
+        this.chunkX = chunkX;
+        this.chunkZ = chunkZ;
+    }
+
+    public ChunkPosition(final long chunkKey) {
+        this.chunkX = (int) chunkKey;
+        this.chunkZ = (int) (chunkKey >> 32);
+    }
+
+    public int chunkX() {
+        return chunkX;
+    }
+
+    public int chunkZ() {
+        return chunkZ;
+    }
+
+    /**
+     * Returns a long key for this chunk position.
+     *
+     * @return the chunk key
+     */
+    public long chunkKey() {
+        return chunkKey(chunkX, chunkZ);
+    }
+
+    /**
+     * Returns a long key for the given chunk coordinates.
+     *
+     * @param chunkX the chunk X coordinate
+     * @param chunkZ the chunk Z coordinate
+     * @return the chunk key
+     */
+    public static long chunkKey(final int chunkX, final int chunkZ) {
+        return (long) chunkX & 0xffffffffL | ((long) chunkZ & 0xffffffffL) << 32;
+    }
+
+    @Override
+    public boolean equals(final Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        final ChunkPosition that = (ChunkPosition) o;
+        return chunkX == that.chunkX && chunkZ == that.chunkZ;
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(chunkX, chunkZ);
+    }
+
+    @Override
+    public String toString() {
+        return "ChunkPosition{" +
+                "chunkX=" + chunkX +
+                ", chunkZ=" + chunkZ +
+                '}';
+    }
+}

api/src/main/java/com/viaversion/viaversion/api/minecraft/metadata/MetaType.java

@@ -63,6 +63,14 @@ public interface MetaType {
             return type;
         }
 
+        @Override
+        public String toString() {
+            return "MetaType{" +
+                    "typeId=" + typeId +
+                    ", type=" + type +
+                    '}';
+        }
+
         @Override
         public boolean equals(final Object o) {
             if (this == o) return true;

api/src/main/java/com/viaversion/viaversion/api/minecraft/metadata/types/MetaType1_12.java

@@ -31,15 +31,15 @@ public enum MetaType1_12 implements MetaType {
     Float(2, Type.FLOAT),
     String(3, Type.STRING),
     Chat(4, Type.COMPONENT),
-    Slot(5, Type.ITEM),
+    Slot(5, Type.ITEM1_8),
     Boolean(6, Type.BOOLEAN),
     Vector3F(7, Type.ROTATION),
-    Position(8, Type.POSITION),
-    OptPosition(9, Type.OPTIONAL_POSITION),
+    Position(8, Type.POSITION1_8),
+    OptPosition(9, Type.OPTIONAL_POSITION1_8),
     Direction(10, Type.VAR_INT),
     OptUUID(11, Type.OPTIONAL_UUID),
     BlockID(12, Type.VAR_INT),
-    NBTTag(13, Type.NBT);
+    NBTTag(13, Type.NAMED_COMPOUND_TAG);
 
     private final int typeID;
     private final Type type;

api/src/main/java/com/viaversion/viaversion/api/minecraft/metadata/types/MetaType1_13.java

@@ -1,69 +0,0 @@
-/*
- * This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
- * Copyright (C) 2016-2023 ViaVersion and contributors
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in all
- * copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-package com.viaversion.viaversion.api.minecraft.metadata.types;
-
-import com.viaversion.viaversion.api.minecraft.metadata.MetaType;
-import com.viaversion.viaversion.api.type.Type;
-import com.viaversion.viaversion.api.type.types.version.Types1_13;
-
-@Deprecated/*(forRemoval = true)*/
-public enum MetaType1_13 implements MetaType {
-    Byte(0, Type.BYTE),
-    VarInt(1, Type.VAR_INT),
-    Float(2, Type.FLOAT),
-    String(3, Type.STRING),
-    Chat(4, Type.COMPONENT),
-    OptChat(5, Type.OPTIONAL_COMPONENT),
-    Slot(6, Type.FLAT_ITEM),
-    Boolean(7, Type.BOOLEAN),
-    Vector3F(8, Type.ROTATION),
-    Position(9, Type.POSITION),
-    OptPosition(10, Type.OPTIONAL_POSITION),
-    Direction(11, Type.VAR_INT),
-    OptUUID(12, Type.OPTIONAL_UUID),
-    BlockID(13, Type.VAR_INT),
-    NBTTag(14, Type.NBT),
-    PARTICLE(15, Types1_13.PARTICLE);
-
-    private final int typeID;
-    private final Type type;
-
-    MetaType1_13(int typeID, Type type) {
-        this.typeID = typeID;
-        this.type = type;
-    }
-
-    public static MetaType1_13 byId(int id) {
-        return values()[id];
-    }
-
-    @Override
-    public int typeId() {
-        return typeID;
-    }
-
-    @Override
-    public Type type() {
-        return type;
-    }
-}

api/src/main/java/com/viaversion/viaversion/api/minecraft/metadata/types/MetaType1_13_2.java

@@ -1,69 +0,0 @@
-/*
- * This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
- * Copyright (C) 2016-2023 ViaVersion and contributors
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in all
- * copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-package com.viaversion.viaversion.api.minecraft.metadata.types;
-
-import com.viaversion.viaversion.api.minecraft.metadata.MetaType;
-import com.viaversion.viaversion.api.type.Type;
-import com.viaversion.viaversion.api.type.types.version.Types1_13_2;
-
-@Deprecated/*(forRemoval = true)*/
-public enum MetaType1_13_2 implements MetaType {
-    Byte(0, Type.BYTE),
-    VarInt(1, Type.VAR_INT),
-    Float(2, Type.FLOAT),
-    String(3, Type.STRING),
-    Chat(4, Type.COMPONENT),
-    OptChat(5, Type.OPTIONAL_COMPONENT),
-    Slot(6, Type.FLAT_VAR_INT_ITEM),
-    Boolean(7, Type.BOOLEAN),
-    Vector3F(8, Type.ROTATION),
-    Position(9, Type.POSITION),
-    OptPosition(10, Type.OPTIONAL_POSITION),
-    Direction(11, Type.VAR_INT),
-    OptUUID(12, Type.OPTIONAL_UUID),
-    BlockID(13, Type.VAR_INT),
-    NBTTag(14, Type.NBT),
-    PARTICLE(15, Types1_13_2.PARTICLE);
-
-    private final int typeID;
-    private final Type type;
-
-    MetaType1_13_2(int typeID, Type type) {
-        this.typeID = typeID;
-        this.type = type;
-    }
-
-    public static MetaType1_13_2 byId(int id) {
-        return values()[id];
-    }
-
-    @Override
-    public int typeId() {
-        return typeID;
-    }
-
-    @Override
-    public Type type() {
-        return type;
-    }
-}

api/src/main/java/com/viaversion/viaversion/api/minecraft/metadata/types/MetaType1_14.java

@@ -1,72 +0,0 @@
-/*
- * This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
- * Copyright (C) 2016-2023 ViaVersion and contributors
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in all
- * copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-package com.viaversion.viaversion.api.minecraft.metadata.types;
-
-import com.viaversion.viaversion.api.minecraft.metadata.MetaType;
-import com.viaversion.viaversion.api.type.Type;
-import com.viaversion.viaversion.api.type.types.version.Types1_14;
-
-@Deprecated/*(forRemoval = true)*/
-public enum MetaType1_14 implements MetaType {
-    Byte(0, Type.BYTE),
-    VarInt(1, Type.VAR_INT),
-    Float(2, Type.FLOAT),
-    String(3, Type.STRING),
-    Chat(4, Type.COMPONENT),
-    OptChat(5, Type.OPTIONAL_COMPONENT),
-    Slot(6, Type.FLAT_VAR_INT_ITEM),
-    Boolean(7, Type.BOOLEAN),
-    Vector3F(8, Type.ROTATION),
-    Position(9, Type.POSITION1_14),
-    OptPosition(10, Type.OPTIONAL_POSITION_1_14),
-    Direction(11, Type.VAR_INT),
-    OptUUID(12, Type.OPTIONAL_UUID),
-    BlockID(13, Type.VAR_INT),
-    NBTTag(14, Type.NBT),
-    PARTICLE(15, Types1_14.PARTICLE),
-    VillagerData(16, Type.VILLAGER_DATA),
-    OptVarInt(17, Type.OPTIONAL_VAR_INT),
-    Pose(18, Type.VAR_INT);
-
-    private final int typeID;
-    private final Type type;
-
-    MetaType1_14(int typeID, Type type) {
-        this.typeID = typeID;
-        this.type = type;
-    }
-
-    public static MetaType1_14 byId(int id) {
-        return values()[id];
-    }
-
-    @Override
-    public int typeId() {
-        return typeID;
-    }
-
-    @Override
-    public Type type() {
-        return type;
-    }
-}

api/src/main/java/com/viaversion/viaversion/api/minecraft/metadata/types/MetaType1_16.java

@@ -1,73 +0,0 @@
-/*
- * This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
- * Copyright (C) 2016-2023 ViaVersion and contributors
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in all
- * copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-package com.viaversion.viaversion.api.minecraft.metadata.types;
-
-import com.viaversion.viaversion.api.minecraft.metadata.MetaType;
-import com.viaversion.viaversion.api.type.Type;
-import com.viaversion.viaversion.api.type.types.version.Types1_16;
-
-@Deprecated/*(forRemoval = true)*/
-public enum MetaType1_16 implements MetaType {
-    BYTE(0, Type.BYTE),
-    VAR_INT(1, Type.VAR_INT),
-    FLOAT(2, Type.FLOAT),
-    STRING(3, Type.STRING),
-    COMPONENT(4, Type.COMPONENT),
-    OPT_COMPONENT(5, Type.OPTIONAL_COMPONENT),
-    ITEM(6, Type.FLAT_VAR_INT_ITEM),
-    BOOLEAN(7, Type.BOOLEAN),
-    ROTATION(8, Type.ROTATION),
-    POSITION(9, Type.POSITION1_14),
-    OPT_POSITION(10, Type.OPTIONAL_POSITION_1_14),
-    DIRECTION(11, Type.VAR_INT),
-    OPT_UUID(12, Type.OPTIONAL_UUID),
-    BLOCK_STATE(13, Type.VAR_INT),
-    NBT(14, Type.NBT),
-    PARTICLE(15, Types1_16.PARTICLE),
-    VILLAGER_DATA(16, Type.VILLAGER_DATA),
-    OPT_VAR_INT(17, Type.OPTIONAL_VAR_INT),
-    POSE(18, Type.VAR_INT);
-
-    private static final MetaType1_16[] VALUES = values();
-    private final int typeId;
-    private final Type type;
-
-    MetaType1_16(int typeId, Type type) {
-        this.typeId = typeId;
-        this.type = type;
-    }
-
-    public static MetaType1_16 byId(int id) {
-        return VALUES[id];
-    }
-
-    @Override
-    public int typeId() {
-        return typeId;
-    }
-
-    @Override
-    public Type type() {
-        return type;
-    }
-}

api/src/main/java/com/viaversion/viaversion/api/minecraft/metadata/types/MetaType1_17.java

@@ -1,73 +0,0 @@
-/*
- * This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
- * Copyright (C) 2016-2023 ViaVersion and contributors
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in all
- * copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-package com.viaversion.viaversion.api.minecraft.metadata.types;
-
-import com.viaversion.viaversion.api.minecraft.metadata.MetaType;
-import com.viaversion.viaversion.api.type.Type;
-import com.viaversion.viaversion.api.type.types.version.Types1_17;
-
-@Deprecated/*(forRemoval = true)*/
-public enum MetaType1_17 implements MetaType {
-    BYTE(0, Type.BYTE),
-    VAR_INT(1, Type.VAR_INT),
-    FLOAT(2, Type.FLOAT),
-    STRING(3, Type.STRING),
-    COMPONENT(4, Type.COMPONENT),
-    OPT_COMPONENT(5, Type.OPTIONAL_COMPONENT),
-    ITEM(6, Type.FLAT_VAR_INT_ITEM),
-    BOOLEAN(7, Type.BOOLEAN),
-    ROTATION(8, Type.ROTATION),
-    POSITION(9, Type.POSITION1_14),
-    OPT_POSITION(10, Type.OPTIONAL_POSITION_1_14),
-    DIRECTION(11, Type.VAR_INT),
-    OPT_UUID(12, Type.OPTIONAL_UUID),
-    BLOCK_STATE(13, Type.VAR_INT),
-    NBT(14, Type.NBT),
-    PARTICLE(15, Types1_17.PARTICLE),
-    VILLAGER_DATA(16, Type.VILLAGER_DATA),
-    OPT_VAR_INT(17, Type.OPTIONAL_VAR_INT),
-    POSE(18, Type.VAR_INT);
-
-    private static final MetaType1_17[] VALUES = values();
-    private final int typeId;
-    private final Type type;
-
-    MetaType1_17(int typeId, Type type) {
-        this.typeId = typeId;
-        this.type = type;
-    }
-
-    public static MetaType1_17 byId(int id) {
-        return VALUES[id];
-    }
-
-    @Override
-    public int typeId() {
-        return typeId;
-    }
-
-    @Override
-    public Type type() {
-        return type;
-    }
-}

api/src/main/java/com/viaversion/viaversion/api/minecraft/metadata/types/MetaType1_18.java

@@ -1,73 +0,0 @@
-/*
- * This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
- * Copyright (C) 2016-2023 ViaVersion and contributors
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in all
- * copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-package com.viaversion.viaversion.api.minecraft.metadata.types;
-
-import com.viaversion.viaversion.api.minecraft.metadata.MetaType;
-import com.viaversion.viaversion.api.type.Type;
-import com.viaversion.viaversion.api.type.types.version.Types1_18;
-
-@Deprecated/*(forRemoval = true)*/
-public enum MetaType1_18 implements MetaType {
-    BYTE(0, Type.BYTE),
-    VAR_INT(1, Type.VAR_INT),
-    FLOAT(2, Type.FLOAT),
-    STRING(3, Type.STRING),
-    COMPONENT(4, Type.COMPONENT),
-    OPT_COMPONENT(5, Type.OPTIONAL_COMPONENT),
-    ITEM(6, Type.FLAT_VAR_INT_ITEM),
-    BOOLEAN(7, Type.BOOLEAN),
-    ROTATION(8, Type.ROTATION),
-    POSITION(9, Type.POSITION1_14),
-    OPT_POSITION(10, Type.OPTIONAL_POSITION_1_14),
-    DIRECTION(11, Type.VAR_INT),
-    OPT_UUID(12, Type.OPTIONAL_UUID),
-    BLOCK_STATE(13, Type.VAR_INT),
-    NBT(14, Type.NBT),
-    PARTICLE(15, Types1_18.PARTICLE),
-    VILLAGER_DATA(16, Type.VILLAGER_DATA),
-    OPT_VAR_INT(17, Type.OPTIONAL_VAR_INT),
-    POSE(18, Type.VAR_INT);
-
-    private static final MetaType1_18[] VALUES = values();
-    private final int typeId;
-    private final Type type;
-
-    MetaType1_18(int typeId, Type type) {
-        this.typeId = typeId;
-        this.type = type;
-    }
-
-    public static MetaType1_18 byId(int id) {
-        return VALUES[id];
-    }
-
-    @Override
-    public int typeId() {
-        return typeId;
-    }
-
-    @Override
-    public Type type() {
-        return type;
-    }
-}

api/src/main/java/com/viaversion/viaversion/api/minecraft/metadata/types/MetaType1_8.java

@@ -24,6 +24,7 @@ package com.viaversion.viaversion.api.minecraft.metadata.types;
 
 import com.viaversion.viaversion.api.minecraft.metadata.MetaType;
 import com.viaversion.viaversion.api.type.Type;
+import com.viaversion.viaversion.api.type.types.VoidType;
 
 public enum MetaType1_8 implements MetaType {
     Byte(0, Type.BYTE),
@@ -31,11 +32,11 @@ public enum MetaType1_8 implements MetaType {
     Int(2, Type.INT),
     Float(3, Type.FLOAT),
     String(4, Type.STRING),
-    Slot(5, Type.ITEM),
+    Slot(5, Type.ITEM1_8),
     Position(6, Type.VECTOR),
     Rotation(7, Type.ROTATION),
     @Deprecated
-    NonExistent(-1, Type.NOTHING);
+    NonExistent(-1, new VoidType());
 
     private final int typeID;
     private final Type type;

api/src/main/java/com/viaversion/viaversion/api/minecraft/metadata/types/MetaType1_9.java

@@ -31,11 +31,11 @@ public enum MetaType1_9 implements MetaType {
     Float(2, Type.FLOAT),
     String(3, Type.STRING),
     Chat(4, Type.COMPONENT),
-    Slot(5, Type.ITEM),
+    Slot(5, Type.ITEM1_8),
     Boolean(6, Type.BOOLEAN),
     Vector3F(7, Type.ROTATION),
-    Position(8, Type.POSITION),
-    OptPosition(9, Type.OPTIONAL_POSITION),
+    Position(8, Type.POSITION1_8),
+    OptPosition(9, Type.OPTIONAL_POSITION1_8),
     Direction(10, Type.VAR_INT),
     OptUUID(11, Type.OPTIONAL_UUID),
     BlockID(12, Type.VAR_INT);

api/src/main/java/com/viaversion/viaversion/api/minecraft/metadata/types/MetaTypes1_13.java

@@ -24,7 +24,7 @@ package com.viaversion.viaversion.api.minecraft.metadata.types;
 
 import com.viaversion.viaversion.api.minecraft.metadata.MetaType;
 import com.viaversion.viaversion.api.type.Type;
-import com.viaversion.viaversion.api.type.types.minecraft.ParticleType;
+import com.viaversion.viaversion.api.type.types.misc.ParticleType;
 
 public final class MetaTypes1_13 extends AbstractMetaTypes {
 
@@ -34,15 +34,15 @@ public final class MetaTypes1_13 extends AbstractMetaTypes {
     public final MetaType stringType = add(3, Type.STRING);
     public final MetaType componentType = add(4, Type.COMPONENT);
     public final MetaType optionalComponentType = add(5, Type.OPTIONAL_COMPONENT);
-    public final MetaType itemType = add(6, Type.FLAT_ITEM);
+    public final MetaType itemType = add(6, Type.ITEM1_13);
     public final MetaType booleanType = add(7, Type.BOOLEAN);
     public final MetaType rotationType = add(8, Type.ROTATION);
-    public final MetaType positionType = add(9, Type.POSITION);
-    public final MetaType optionalPositionType = add(10, Type.OPTIONAL_POSITION);
+    public final MetaType positionType = add(9, Type.POSITION1_8);
+    public final MetaType optionalPositionType = add(10, Type.OPTIONAL_POSITION1_8);
     public final MetaType directionType = add(11, Type.VAR_INT);
     public final MetaType optionalUUIDType = add(12, Type.OPTIONAL_UUID);
     public final MetaType blockStateType = add(13, Type.VAR_INT);
-    public final MetaType nbtType = add(14, Type.NBT);
+    public final MetaType nbtType = add(14, Type.NAMED_COMPOUND_TAG);
     public final MetaType particleType;
 
     public MetaTypes1_13(final ParticleType particleType) {

api/src/main/java/com/viaversion/viaversion/api/minecraft/metadata/types/MetaTypes1_13_2.java

@@ -24,7 +24,7 @@ package com.viaversion.viaversion.api.minecraft.metadata.types;
 
 import com.viaversion.viaversion.api.minecraft.metadata.MetaType;
 import com.viaversion.viaversion.api.type.Type;
-import com.viaversion.viaversion.api.type.types.minecraft.ParticleType;
+import com.viaversion.viaversion.api.type.types.misc.ParticleType;
 
 public final class MetaTypes1_13_2 extends AbstractMetaTypes {
 
@@ -34,15 +34,15 @@ public final class MetaTypes1_13_2 extends AbstractMetaTypes {
     public final MetaType stringType = add(3, Type.STRING);
     public final MetaType componentType = add(4, Type.COMPONENT);
     public final MetaType optionalComponentType = add(5, Type.OPTIONAL_COMPONENT);
-    public final MetaType itemType = add(6, Type.FLAT_VAR_INT_ITEM);
+    public final MetaType itemType = add(6, Type.ITEM1_13_2);
     public final MetaType booleanType = add(7, Type.BOOLEAN);
     public final MetaType rotationType = add(8, Type.ROTATION);
-    public final MetaType positionType = add(9, Type.POSITION);
-    public final MetaType optionalPositionType = add(10, Type.OPTIONAL_POSITION);
+    public final MetaType positionType = add(9, Type.POSITION1_8);
+    public final MetaType optionalPositionType = add(10, Type.OPTIONAL_POSITION1_8);
     public final MetaType directionType = add(11, Type.VAR_INT);
     public final MetaType optionalUUIDType = add(12, Type.OPTIONAL_UUID);
     public final MetaType blockStateType = add(13, Type.VAR_INT);
-    public final MetaType nbtType = add(14, Type.NBT);
+    public final MetaType nbtType = add(14, Type.NAMED_COMPOUND_TAG);
     public final MetaType particleType;
 
     public MetaTypes1_13_2(final ParticleType particleType) {

api/src/main/java/com/viaversion/viaversion/api/minecraft/metadata/types/MetaTypes1_14.java

@@ -24,7 +24,7 @@ package com.viaversion.viaversion.api.minecraft.metadata.types;
 
 import com.viaversion.viaversion.api.minecraft.metadata.MetaType;
 import com.viaversion.viaversion.api.type.Type;
-import com.viaversion.viaversion.api.type.types.minecraft.ParticleType;
+import com.viaversion.viaversion.api.type.types.misc.ParticleType;
 
 public final class MetaTypes1_14 extends AbstractMetaTypes {
 
@@ -34,7 +34,7 @@ public final class MetaTypes1_14 extends AbstractMetaTypes {
     public final MetaType stringType = add(3, Type.STRING);
     public final MetaType componentType = add(4, Type.COMPONENT);
     public final MetaType optionalComponentType = add(5, Type.OPTIONAL_COMPONENT);
-    public final MetaType itemType = add(6, Type.FLAT_VAR_INT_ITEM);
+    public final MetaType itemType = add(6, Type.ITEM1_13_2);
     public final MetaType booleanType = add(7, Type.BOOLEAN);
     public final MetaType rotationType = add(8, Type.ROTATION);
     public final MetaType positionType = add(9, Type.POSITION1_14);
@@ -42,7 +42,7 @@ public final class MetaTypes1_14 extends AbstractMetaTypes {
     public final MetaType directionType = add(11, Type.VAR_INT);
     public final MetaType optionalUUIDType = add(12, Type.OPTIONAL_UUID);
     public final MetaType blockStateType = add(13, Type.VAR_INT);
-    public final MetaType nbtType = add(14, Type.NBT);
+    public final MetaType nbtType = add(14, Type.NAMED_COMPOUND_TAG);
     public final MetaType particleType;
     public final MetaType villagerDatatType = add(16, Type.VILLAGER_DATA);
     public final MetaType optionalVarIntType = add(17, Type.OPTIONAL_VAR_INT);

api/src/main/java/com/viaversion/viaversion/api/minecraft/metadata/types/MetaTypes1_19.java

@@ -24,7 +24,7 @@ package com.viaversion.viaversion.api.minecraft.metadata.types;
 
 import com.viaversion.viaversion.api.minecraft.metadata.MetaType;
 import com.viaversion.viaversion.api.type.Type;
-import com.viaversion.viaversion.api.type.types.minecraft.ParticleType;
+import com.viaversion.viaversion.api.type.types.misc.ParticleType;
 
 public final class MetaTypes1_19 extends AbstractMetaTypes {
 
@@ -34,7 +34,7 @@ public final class MetaTypes1_19 extends AbstractMetaTypes {
     public final MetaType stringType = add(3, Type.STRING);
     public final MetaType componentType = add(4, Type.COMPONENT);
     public final MetaType optionalComponentType = add(5, Type.OPTIONAL_COMPONENT);
-    public final MetaType itemType = add(6, Type.FLAT_VAR_INT_ITEM);
+    public final MetaType itemType = add(6, Type.ITEM1_13_2);
     public final MetaType booleanType = add(7, Type.BOOLEAN);
     public final MetaType rotationType = add(8, Type.ROTATION);
     public final MetaType positionType = add(9, Type.POSITION1_14);
@@ -42,7 +42,7 @@ public final class MetaTypes1_19 extends AbstractMetaTypes {
     public final MetaType directionType = add(11, Type.VAR_INT);
     public final MetaType optionalUUIDType = add(12, Type.OPTIONAL_UUID);
     public final MetaType blockStateType = add(13, Type.VAR_INT);
-    public final MetaType nbtType = add(14, Type.NBT);
+    public final MetaType nbtType = add(14, Type.NAMED_COMPOUND_TAG);
     public final MetaType particleType;
     public final MetaType villagerDatatType = add(16, Type.VILLAGER_DATA);
     public final MetaType optionalVarIntType = add(17, Type.OPTIONAL_VAR_INT);

api/src/main/java/com/viaversion/viaversion/api/minecraft/metadata/types/MetaTypes1_19_3.java

@@ -24,7 +24,7 @@ package com.viaversion.viaversion.api.minecraft.metadata.types;
 
 import com.viaversion.viaversion.api.minecraft.metadata.MetaType;
 import com.viaversion.viaversion.api.type.Type;
-import com.viaversion.viaversion.api.type.types.minecraft.ParticleType;
+import com.viaversion.viaversion.api.type.types.misc.ParticleType;
 
 public final class MetaTypes1_19_3 extends AbstractMetaTypes {
 
@@ -35,7 +35,7 @@ public final class MetaTypes1_19_3 extends AbstractMetaTypes {
     public final MetaType stringType = add(4, Type.STRING);
     public final MetaType componentType = add(5, Type.COMPONENT);
     public final MetaType optionalComponentType = add(6, Type.OPTIONAL_COMPONENT);
-    public final MetaType itemType = add(7, Type.FLAT_VAR_INT_ITEM);
+    public final MetaType itemType = add(7, Type.ITEM1_13_2);
     public final MetaType booleanType = add(8, Type.BOOLEAN);
     public final MetaType rotationType = add(9, Type.ROTATION);
     public final MetaType positionType = add(10, Type.POSITION1_14);
@@ -43,7 +43,7 @@ public final class MetaTypes1_19_3 extends AbstractMetaTypes {
     public final MetaType directionType = add(12, Type.VAR_INT);
     public final MetaType optionalUUIDType = add(13, Type.OPTIONAL_UUID);
     public final MetaType blockStateType = add(14, Type.VAR_INT);
-    public final MetaType nbtType = add(15, Type.NBT);
+    public final MetaType nbtType = add(15, Type.NAMED_COMPOUND_TAG);
     public final MetaType particleType;
     public final MetaType villagerDatatType = add(17, Type.VILLAGER_DATA);
     public final MetaType optionalVarIntType = add(18, Type.OPTIONAL_VAR_INT);

api/src/main/java/com/viaversion/viaversion/api/minecraft/metadata/types/MetaTypes1_19_4.java

@@ -24,7 +24,7 @@ package com.viaversion.viaversion.api.minecraft.metadata.types;
 
 import com.viaversion.viaversion.api.minecraft.metadata.MetaType;
 import com.viaversion.viaversion.api.type.Type;
-import com.viaversion.viaversion.api.type.types.minecraft.ParticleType;
+import com.viaversion.viaversion.api.type.types.misc.ParticleType;
 
 public final class MetaTypes1_19_4 extends AbstractMetaTypes {
 
@@ -35,7 +35,7 @@ public final class MetaTypes1_19_4 extends AbstractMetaTypes {
     public final MetaType stringType = add(4, Type.STRING);
     public final MetaType componentType = add(5, Type.COMPONENT);
     public final MetaType optionalComponentType = add(6, Type.OPTIONAL_COMPONENT);
-    public final MetaType itemType = add(7, Type.FLAT_VAR_INT_ITEM);
+    public final MetaType itemType = add(7, Type.ITEM1_13_2);
     public final MetaType booleanType = add(8, Type.BOOLEAN);
     public final MetaType rotationType = add(9, Type.ROTATION);
     public final MetaType positionType = add(10, Type.POSITION1_14);
@@ -44,7 +44,7 @@ public final class MetaTypes1_19_4 extends AbstractMetaTypes {
     public final MetaType optionalUUIDType = add(13, Type.OPTIONAL_UUID);
     public final MetaType blockStateType = add(14, Type.VAR_INT);
     public final MetaType optionalBlockStateType = add(15, Type.VAR_INT);
-    public final MetaType nbtType = add(16, Type.NBT);
+    public final MetaType nbtType = add(16, Type.NAMED_COMPOUND_TAG);
     public final MetaType particleType;
     public final MetaType villagerDatatType = add(18, Type.VILLAGER_DATA);
     public final MetaType optionalVarIntType = add(19, Type.OPTIONAL_VAR_INT);

api/src/main/java/com/viaversion/viaversion/api/minecraft/metadata/types/MetaTypes1_20_2.java

@@ -0,0 +1,64 @@
+/*
+ * This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
+ * Copyright (C) 2016-2023 ViaVersion and contributors
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+package com.viaversion.viaversion.api.minecraft.metadata.types;
+
+import com.viaversion.viaversion.api.minecraft.metadata.MetaType;
+import com.viaversion.viaversion.api.type.Type;
+import com.viaversion.viaversion.api.type.types.misc.ParticleType;
+
+public final class MetaTypes1_20_2 extends AbstractMetaTypes {
+
+    public final MetaType byteType = add(0, Type.BYTE);
+    public final MetaType varIntType = add(1, Type.VAR_INT);
+    public final MetaType longType = add(2, Type.VAR_LONG);
+    public final MetaType floatType = add(3, Type.FLOAT);
+    public final MetaType stringType = add(4, Type.STRING);
+    public final MetaType componentType = add(5, Type.COMPONENT);
+    public final MetaType optionalComponentType = add(6, Type.OPTIONAL_COMPONENT);
+    public final MetaType itemType = add(7, Type.ITEM1_20_2);
+    public final MetaType booleanType = add(8, Type.BOOLEAN);
+    public final MetaType rotationType = add(9, Type.ROTATION);
+    public final MetaType positionType = add(10, Type.POSITION1_14);
+    public final MetaType optionalPositionType = add(11, Type.OPTIONAL_POSITION_1_14);
+    public final MetaType directionType = add(12, Type.VAR_INT);
+    public final MetaType optionalUUIDType = add(13, Type.OPTIONAL_UUID);
+    public final MetaType blockStateType = add(14, Type.VAR_INT);
+    public final MetaType optionalBlockStateType = add(15, Type.VAR_INT);
+    public final MetaType nbtType = add(16, Type.COMPOUND_TAG);
+    public final MetaType particleType;
+    public final MetaType villagerDatatType = add(18, Type.VILLAGER_DATA);
+    public final MetaType optionalVarIntType = add(19, Type.OPTIONAL_VAR_INT);
+    public final MetaType poseType = add(20, Type.VAR_INT);
+    public final MetaType catVariantType = add(21, Type.VAR_INT);
+    public final MetaType frogVariantType = add(22, Type.VAR_INT);
+    public final MetaType optionalGlobalPosition = add(23, Type.OPTIONAL_GLOBAL_POSITION);
+    public final MetaType paintingVariantType = add(24, Type.VAR_INT);
+    public final MetaType snifferState = add(25, Type.VAR_INT);
+    public final MetaType vectorType = add(26, Type.VECTOR3F);
+    public final MetaType quaternionType = add(27, Type.QUATERNION);
+
+    public MetaTypes1_20_2(final ParticleType particleType) {
+        super(28);
+        this.particleType = add(17, particleType);
+    }
+}

api/src/main/java/com/viaversion/viaversion/api/minecraft/metadata/types/MetaTypes1_20_3.java

@@ -0,0 +1,64 @@
+/*
+ * This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
+ * Copyright (C) 2016-2023 ViaVersion and contributors
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+package com.viaversion.viaversion.api.minecraft.metadata.types;
+
+import com.viaversion.viaversion.api.minecraft.metadata.MetaType;
+import com.viaversion.viaversion.api.type.Type;
+import com.viaversion.viaversion.api.type.types.misc.ParticleType;
+
+public final class MetaTypes1_20_3 extends AbstractMetaTypes {
+
+    public final MetaType byteType = add(0, Type.BYTE);
+    public final MetaType varIntType = add(1, Type.VAR_INT);
+    public final MetaType longType = add(2, Type.VAR_LONG);
+    public final MetaType floatType = add(3, Type.FLOAT);
+    public final MetaType stringType = add(4, Type.STRING);
+    public final MetaType componentType = add(5, Type.TAG);
+    public final MetaType optionalComponentType = add(6, Type.OPTIONAL_TAG);
+    public final MetaType itemType = add(7, Type.ITEM1_20_2);
+    public final MetaType booleanType = add(8, Type.BOOLEAN);
+    public final MetaType rotationType = add(9, Type.ROTATION);
+    public final MetaType positionType = add(10, Type.POSITION1_14);
+    public final MetaType optionalPositionType = add(11, Type.OPTIONAL_POSITION_1_14);
+    public final MetaType directionType = add(12, Type.VAR_INT);
+    public final MetaType optionalUUIDType = add(13, Type.OPTIONAL_UUID);
+    public final MetaType blockStateType = add(14, Type.VAR_INT);
+    public final MetaType optionalBlockStateType = add(15, Type.VAR_INT);
+    public final MetaType nbtType = add(16, Type.COMPOUND_TAG);
+    public final MetaType particleType;
+    public final MetaType villagerDatatType = add(18, Type.VILLAGER_DATA);
+    public final MetaType optionalVarIntType = add(19, Type.OPTIONAL_VAR_INT);
+    public final MetaType poseType = add(20, Type.VAR_INT);
+    public final MetaType catVariantType = add(21, Type.VAR_INT);
+    public final MetaType frogVariantType = add(22, Type.VAR_INT);
+    public final MetaType optionalGlobalPosition = add(23, Type.OPTIONAL_GLOBAL_POSITION);
+    public final MetaType paintingVariantType = add(24, Type.VAR_INT);
+    public final MetaType snifferState = add(25, Type.VAR_INT);
+    public final MetaType vectorType = add(26, Type.VECTOR3F);
+    public final MetaType quaternionType = add(27, Type.QUATERNION);
+
+    public MetaTypes1_20_3(final ParticleType particleType) {
+        super(28);
+        this.particleType = add(17, particleType);
+    }
+}

api/src/main/java/com/viaversion/viaversion/api/minecraft/nbt/BinaryTagIO.java

@@ -1,216 +0,0 @@
-/*
- * This file is part of adventure, licensed under the MIT License.
- *
- * Copyright (c) 2017-2020 KyoriPowered
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in all
- * copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-package com.viaversion.viaversion.api.minecraft.nbt;
-
-import com.github.steveice10.opennbt.tag.builtin.CompoundTag;
-import java.io.BufferedInputStream;
-import java.io.DataInput;
-import java.io.DataInputStream;
-import java.io.DataOutput;
-import java.io.DataOutputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.OutputStream;
-import java.nio.file.Files;
-import java.nio.file.Path;
-import java.util.zip.GZIPInputStream;
-import java.util.zip.GZIPOutputStream;
-import org.checkerframework.checker.nullness.qual.NonNull;
-
-// Specific Via changes:
-// - Use OpenNBT tags
-// - Added readString/writeString methods from TagStringIO
-// - Has not been updated for the sake of keeping the class simple
-
-/**
- * Serialization operations for binary tags.
- */
-public final class BinaryTagIO {
-    private BinaryTagIO() {
-    }
-
-    /**
-     * Reads a compound tag from {@code path}.
-     *
-     * @param path the path
-     * @return the compound tag
-     * @throws IOException if an exception was encountered while reading a compound tag
-     */
-    public static @NonNull CompoundTag readPath(final @NonNull Path path) throws IOException {
-        return readInputStream(Files.newInputStream(path));
-    }
-
-    /**
-     * Reads a compound tag from an input stream.
-     *
-     * @param input the input stream
-     * @return the compound tag
-     * @throws IOException if an exception was encountered while reading a compound tag
-     */
-    public static @NonNull CompoundTag readInputStream(final @NonNull InputStream input) throws IOException {
-        try (final DataInputStream dis = new DataInputStream(input)) {
-            return readDataInput(dis);
-        }
-    }
-
-    /**
-     * Reads a compound tag from {@code path} using GZIP decompression.
-     *
-     * @param path the path
-     * @return the compound tag
-     * @throws IOException if an exception was encountered while reading a compound tag
-     */
-    public static @NonNull CompoundTag readCompressedPath(final @NonNull Path path) throws IOException {
-        return readCompressedInputStream(Files.newInputStream(path));
-    }
-
-    /**
-     * Reads a compound tag from an input stream using GZIP decompression.
-     *
-     * @param input the input stream
-     * @return the compound tag
-     * @throws IOException if an exception was encountered while reading a compound tag
-     */
-    public static @NonNull CompoundTag readCompressedInputStream(final @NonNull InputStream input) throws IOException {
-        try (final DataInputStream dis = new DataInputStream(new BufferedInputStream(new GZIPInputStream(input)))) {
-            return readDataInput(dis);
-        }
-    }
-
-    /**
-     * Reads a compound tag from {@code input}.
-     *
-     * @param input the input
-     * @return the compound tag
-     * @throws IOException if an exception was encountered while reading a compound tag
-     */
-    public static @NonNull CompoundTag readDataInput(final @NonNull DataInput input) throws IOException {
-        byte type = input.readByte();
-        if (type != CompoundTag.ID) {
-            throw new IOException(String.format("Expected root tag to be a CompoundTag, was %s", type));
-        }
-        input.skipBytes(input.readUnsignedShort()); // read empty name
-
-        final CompoundTag compoundTag = new CompoundTag();
-        compoundTag.read(input);
-        return compoundTag;
-    }
-
-    /**
-     * Writes a compound tag to {@code path}.
-     *
-     * @param tag  the compound tag
-     * @param path the path
-     * @throws IOException if an exception was encountered while writing the compound tag
-     */
-    public static void writePath(final @NonNull CompoundTag tag, final @NonNull Path path) throws IOException {
-        writeOutputStream(tag, Files.newOutputStream(path));
-    }
-
-    /**
-     * Writes a compound tag to an output stream.
-     *
-     * @param tag    the compound tag
-     * @param output the output stream
-     * @throws IOException if an exception was encountered while writing the compound tag
-     */
-    public static void writeOutputStream(final @NonNull CompoundTag tag, final @NonNull OutputStream output) throws IOException {
-        try (final DataOutputStream dos = new DataOutputStream(output)) {
-            writeDataOutput(tag, dos);
-        }
-    }
-
-    /**
-     * Writes a compound tag to {@code path} using GZIP compression.
-     *
-     * @param tag  the compound tag
-     * @param path the path
-     * @throws IOException if an exception was encountered while writing the compound tag
-     */
-    public static void writeCompressedPath(final @NonNull CompoundTag tag, final @NonNull Path path) throws IOException {
-        writeCompressedOutputStream(tag, Files.newOutputStream(path));
-    }
-
-    /**
-     * Writes a compound tag to an output stream using GZIP compression.
-     *
-     * @param tag    the compound tag
-     * @param output the output stream
-     * @throws IOException if an exception was encountered while writing the compound tag
-     */
-    public static void writeCompressedOutputStream(final @NonNull CompoundTag tag, final @NonNull OutputStream output) throws IOException {
-        try (final DataOutputStream dos = new DataOutputStream(new GZIPOutputStream(output))) {
-            writeDataOutput(tag, dos);
-        }
-    }
-
-    /**
-     * Writes a compound tag to {@code output}.
-     *
-     * @param tag    the compound tag
-     * @param output the output
-     * @throws IOException if an exception was encountered while writing the compound tag
-     */
-    public static void writeDataOutput(final @NonNull CompoundTag tag, final @NonNull DataOutput output) throws IOException {
-        output.writeByte(CompoundTag.ID);
-        output.writeUTF(""); // write empty name
-        tag.write(output);
-    }
-
-    /**
-     * Reads a compound tag from a {@link String}.
-     *
-     * @param input the string
-     * @return the compound tag
-     * @throws IOException if an exception was encountered while reading a compound tag
-     */
-    public static @NonNull CompoundTag readString(final @NonNull String input) throws IOException {
-        try {
-            final CharBuffer buffer = new CharBuffer(input);
-            final TagStringReader parser = new TagStringReader(buffer);
-            final CompoundTag tag = parser.compound();
-            if (buffer.skipWhitespace().hasMore()) {
-                throw new IOException("Document had trailing content after first CompoundTag");
-            }
-            return tag;
-        } catch (final StringTagParseException ex) {
-            throw new IOException(ex);
-        }
-    }
-
-    /**
-     * Writes a compound tag to a {@link String}.
-     *
-     * @param tag the compound tag
-     * @return the string
-     * @throws IOException if an exception was encountered while writing the compound tag
-     */
-    public static @NonNull String writeString(final @NonNull CompoundTag tag) throws IOException {
-        final StringBuilder sb = new StringBuilder();
-        try (final TagStringWriter emit = new TagStringWriter(sb)) {
-            emit.writeTag(tag);
-        }
-        return sb.toString();
-    }
-}

api/src/main/java/com/viaversion/viaversion/api/minecraft/nbt/CharBuffer.java

@@ -1,144 +0,0 @@
-/*
- * This file is part of adventure, licensed under the MIT License.
- *
- * Copyright (c) 2017-2021 KyoriPowered
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in all
- * copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-package com.viaversion.viaversion.api.minecraft.nbt;
-
-/**
- * A character buffer designed to be inspected by a parser.
- */
-final class CharBuffer {
-    private final CharSequence sequence;
-    private int index;
-
-    CharBuffer(final CharSequence sequence) {
-        this.sequence = sequence;
-    }
-
-    /**
-     * Get the character at the current position.
-     *
-     * @return The current character
-     */
-    public char peek() {
-        return this.sequence.charAt(this.index);
-    }
-
-    public char peek(final int offset) {
-        return this.sequence.charAt(this.index + offset);
-    }
-
-    /**
-     * Get the current character and advance.
-     *
-     * @return current character
-     */
-    public char take() {
-        return this.sequence.charAt(this.index++);
-    }
-
-    public boolean advance() {
-        this.index++;
-        return this.hasMore();
-    }
-
-    public boolean hasMore() {
-        return this.index < this.sequence.length();
-    }
-
-    public boolean hasMore(final int offset) {
-        return this.index + offset < this.sequence.length();
-    }
-
-    /**
-     * Search for the provided token, and advance the reader index past the {@code until} character.
-     *
-     * @param until Case-insensitive token
-     * @return the string starting at the current position (inclusive) and going until the location of {@code until}, exclusive
-     */
-    public CharSequence takeUntil(char until) throws StringTagParseException {
-        until = Character.toLowerCase(until);
-        int endIdx = -1;
-        for (int idx = this.index; idx < this.sequence.length(); ++idx) {
-            if (this.sequence.charAt(idx) == Tokens.ESCAPE_MARKER) {
-                idx++;
-            } else if (Character.toLowerCase(this.sequence.charAt(idx)) == until) {
-                endIdx = idx;
-                break;
-            }
-        }
-        if (endIdx == -1) {
-            throw this.makeError("No occurrence of " + until + " was found");
-        }
-
-        final CharSequence result = this.sequence.subSequence(this.index, endIdx);
-        this.index = endIdx + 1;
-        return result;
-    }
-
-    /**
-     * Assert that the next non-whitespace character is the provided parameter.
-     *
-     * <p>If the assertion is successful, the token will be consumed.</p>
-     *
-     * @param expectedChar expected character
-     * @return this
-     * @throws StringTagParseException if EOF or non-matching value is found
-     */
-    public CharBuffer expect(final char expectedChar) throws StringTagParseException {
-        this.skipWhitespace();
-        if (!this.hasMore()) {
-            throw this.makeError("Expected character '" + expectedChar + "' but got EOF");
-        }
-        if (this.peek() != expectedChar) {
-            throw this.makeError("Expected character '" + expectedChar + "' but got '" + this.peek() + "'");
-        }
-        this.take();
-        return this;
-    }
-
-    /**
-     * If the next non-whitespace character is {@code token}, advance past it.
-     *
-     * <p>This method always consumes whitespace.</p>
-     *
-     * @param token next non-whitespace character to query
-     * @return if the next non-whitespace character is {@code token}
-     */
-    public boolean takeIf(final char token) {
-        this.skipWhitespace();
-        if (this.hasMore() && this.peek() == token) {
-            this.advance();
-            return true;
-        }
-        return false;
-    }
-
-    public CharBuffer skipWhitespace() {
-        while (this.hasMore() && Character.isWhitespace(this.peek())) this.advance();
-        return this;
-    }
-
-    public StringTagParseException makeError(final String message) {
-        return new StringTagParseException(message, this.sequence, this.index);
-    }
-}

api/src/main/java/com/viaversion/viaversion/api/minecraft/nbt/StringTagParseException.java

@@ -1,46 +0,0 @@
-/*
- * This file is part of adventure, licensed under the MIT License.
- *
- * Copyright (c) 2017-2020 KyoriPowered
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in all
- * copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-package com.viaversion.viaversion.api.minecraft.nbt;
-
-import java.io.IOException;
-
-/**
- * An exception thrown when parsing a string tag.
- */
-class StringTagParseException extends IOException {
-    private static final long serialVersionUID = -3001637554903912905L;
-    private final CharSequence buffer;
-    private final int position;
-
-    public StringTagParseException(final String message, final CharSequence buffer, final int position) {
-        super(message);
-        this.buffer = buffer;
-        this.position = position;
-    }
-
-    @Override
-    public String getMessage() {
-        return super.getMessage() + "(at position " + this.position + ")";
-    }
-}

api/src/main/java/com/viaversion/viaversion/api/minecraft/nbt/TagStringReader.java

@@ -1,358 +0,0 @@
-/*
- * This file is part of adventure, licensed under the MIT License.
- *
- * Copyright (c) 2017-2021 KyoriPowered
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in all
- * copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-package com.viaversion.viaversion.api.minecraft.nbt;
-
-import com.github.steveice10.opennbt.tag.builtin.ByteArrayTag;
-import com.github.steveice10.opennbt.tag.builtin.ByteTag;
-import com.github.steveice10.opennbt.tag.builtin.CompoundTag;
-import com.github.steveice10.opennbt.tag.builtin.DoubleTag;
-import com.github.steveice10.opennbt.tag.builtin.FloatTag;
-import com.github.steveice10.opennbt.tag.builtin.IntArrayTag;
-import com.github.steveice10.opennbt.tag.builtin.IntTag;
-import com.github.steveice10.opennbt.tag.builtin.ListTag;
-import com.github.steveice10.opennbt.tag.builtin.LongArrayTag;
-import com.github.steveice10.opennbt.tag.builtin.LongTag;
-import com.github.steveice10.opennbt.tag.builtin.NumberTag;
-import com.github.steveice10.opennbt.tag.builtin.ShortTag;
-import com.github.steveice10.opennbt.tag.builtin.StringTag;
-import com.github.steveice10.opennbt.tag.builtin.Tag;
-import it.unimi.dsi.fastutil.ints.IntArrayList;
-import it.unimi.dsi.fastutil.ints.IntList;
-import java.util.stream.IntStream;
-import java.util.stream.LongStream;
-
-// Specific Via changes:
-// - Use OpenNBT tags
-// - Small byteArray() optimization
-// - acceptLegacy = true by default
-final class TagStringReader {
-    private static final int MAX_DEPTH = 512;
-    private static final byte[] EMPTY_BYTE_ARRAY = new byte[0];
-    private static final int[] EMPTY_INT_ARRAY = new int[0];
-    private static final long[] EMPTY_LONG_ARRAY = new long[0];
-
-    private final CharBuffer buffer;
-    private boolean acceptLegacy = true; // Via - always true
-    private int depth;
-
-    TagStringReader(final CharBuffer buffer) {
-        this.buffer = buffer;
-    }
-
-    public CompoundTag compound() throws StringTagParseException {
-        this.buffer.expect(Tokens.COMPOUND_BEGIN);
-        final CompoundTag compoundTag = new CompoundTag();
-        if (this.buffer.takeIf(Tokens.COMPOUND_END)) {
-            return compoundTag;
-        }
-
-        while (this.buffer.hasMore()) {
-            compoundTag.put(this.key(), this.tag());
-            if (this.separatorOrCompleteWith(Tokens.COMPOUND_END)) {
-                return compoundTag;
-            }
-        }
-        throw this.buffer.makeError("Unterminated compound tag!");
-    }
-
-    public ListTag list() throws StringTagParseException {
-        final ListTag listTag = new ListTag();
-        this.buffer.expect(Tokens.ARRAY_BEGIN);
-        final boolean prefixedIndex = this.acceptLegacy && this.buffer.peek() == '0' && this.buffer.peek(1) == ':';
-        if (!prefixedIndex && this.buffer.takeIf(Tokens.ARRAY_END)) {
-            return listTag;
-        }
-        while (this.buffer.hasMore()) {
-            if (prefixedIndex) {
-                this.buffer.takeUntil(':');
-            }
-
-            final Tag next = this.tag();
-            listTag.add(next);
-            if (this.separatorOrCompleteWith(Tokens.ARRAY_END)) {
-                return listTag;
-            }
-        }
-        throw this.buffer.makeError("Reached end of file without end of list tag!");
-    }
-
-    /**
-     * Similar to a list tag in syntax, but returning a single array tag rather than a list of tags.
-     *
-     * @return array-typed tag
-     */
-    public Tag array(char elementType) throws StringTagParseException {
-        this.buffer.expect(Tokens.ARRAY_BEGIN)
-                .expect(elementType)
-                .expect(Tokens.ARRAY_SIGNATURE_SEPARATOR);
-
-        elementType = Character.toLowerCase(elementType);
-        if (elementType == Tokens.TYPE_BYTE) {
-            return new ByteArrayTag(this.byteArray());
-        } else if (elementType == Tokens.TYPE_INT) {
-            return new IntArrayTag(this.intArray());
-        } else if (elementType == Tokens.TYPE_LONG) {
-            return new LongArrayTag(this.longArray());
-        } else {
-            throw this.buffer.makeError("Type " + elementType + " is not a valid element type in an array!");
-        }
-    }
-
-    private byte[] byteArray() throws StringTagParseException {
-        if (this.buffer.takeIf(Tokens.ARRAY_END)) {
-            return EMPTY_BYTE_ARRAY;
-        }
-
-        final IntList bytes = new IntArrayList(); // Via - no boxing
-        while (this.buffer.hasMore()) {
-            final CharSequence value = this.buffer.skipWhitespace().takeUntil(Tokens.TYPE_BYTE);
-            try {
-                bytes.add(Byte.parseByte(value.toString())); // Via
-            } catch (final NumberFormatException ex) {
-                throw this.buffer.makeError("All elements of a byte array must be bytes!");
-            }
-
-            if (this.separatorOrCompleteWith(Tokens.ARRAY_END)) {
-                final byte[] result = new byte[bytes.size()];
-                for (int i = 0; i < bytes.size(); ++i) {
-                    result[i] = (byte) bytes.getInt(i); // Via
-                }
-                return result;
-            }
-        }
-        throw this.buffer.makeError("Reached end of document without array close");
-    }
-
-    private int[] intArray() throws StringTagParseException {
-        if (this.buffer.takeIf(Tokens.ARRAY_END)) {
-            return EMPTY_INT_ARRAY;
-        }
-
-        final IntStream.Builder builder = IntStream.builder();
-        while (this.buffer.hasMore()) {
-            final Tag value = this.tag();
-            if (!(value instanceof IntTag)) {
-                throw this.buffer.makeError("All elements of an int array must be ints!");
-            }
-            builder.add(((NumberTag) value).asInt());
-            if (this.separatorOrCompleteWith(Tokens.ARRAY_END)) {
-                return builder.build().toArray();
-            }
-        }
-        throw this.buffer.makeError("Reached end of document without array close");
-    }
-
-    private long[] longArray() throws StringTagParseException {
-        if (this.buffer.takeIf(Tokens.ARRAY_END)) {
-            return EMPTY_LONG_ARRAY;
-        }
-
-        final LongStream.Builder longs = LongStream.builder();
-        while (this.buffer.hasMore()) {
-            final CharSequence value = this.buffer.skipWhitespace().takeUntil(Tokens.TYPE_LONG);
-            try {
-                longs.add(Long.parseLong(value.toString()));
-            } catch (final NumberFormatException ex) {
-                throw this.buffer.makeError("All elements of a long array must be longs!");
-            }
-
-            if (this.separatorOrCompleteWith(Tokens.ARRAY_END)) {
-                return longs.build().toArray();
-            }
-        }
-        throw this.buffer.makeError("Reached end of document without array close");
-    }
-
-    public String key() throws StringTagParseException {
-        this.buffer.skipWhitespace();
-        final char starChar = this.buffer.peek();
-        try {
-            if (starChar == Tokens.SINGLE_QUOTE || starChar == Tokens.DOUBLE_QUOTE) {
-                return unescape(this.buffer.takeUntil(this.buffer.take()).toString());
-            }
-
-            final StringBuilder builder = new StringBuilder();
-            while (this.buffer.hasMore()) {
-                final char peek = this.buffer.peek();
-                if (!Tokens.id(peek)) {
-                    if (this.acceptLegacy) {
-                        // In legacy format, a key is any non-colon character, with escapes allowed
-                        if (peek == Tokens.ESCAPE_MARKER) {
-                            this.buffer.take(); // skip
-                            continue;
-                        } else if (peek != Tokens.COMPOUND_KEY_TERMINATOR) {
-                            builder.append(this.buffer.take());
-                            continue;
-                        }
-                    }
-                    break;
-                }
-                builder.append(this.buffer.take());
-            }
-            return builder.toString();
-        } finally {
-            this.buffer.expect(Tokens.COMPOUND_KEY_TERMINATOR);
-        }
-    }
-
-    public Tag tag() throws StringTagParseException {
-        if (this.depth++ > MAX_DEPTH) {
-            throw this.buffer.makeError("Exceeded maximum allowed depth of " + MAX_DEPTH + " when reading tag");
-        }
-        try {
-            final char startToken = this.buffer.skipWhitespace().peek();
-            switch (startToken) {
-                case Tokens.COMPOUND_BEGIN:
-                    return this.compound();
-                case Tokens.ARRAY_BEGIN:
-                    // Maybe add in a legacy-only mode to read those?
-                    if (this.buffer.hasMore(2) && this.buffer.peek(2) == ';') { // we know we're an array tag
-                        return this.array(this.buffer.peek(1));
-                    } else {
-                        return this.list();
-                    }
-                case Tokens.SINGLE_QUOTE:
-                case Tokens.DOUBLE_QUOTE:
-                    // definitely a string tag
-                    this.buffer.advance();
-                    return new StringTag(unescape(this.buffer.takeUntil(startToken).toString()));
-                default: // scalar
-                    return this.scalar();
-            }
-        } finally {
-            this.depth--;
-        }
-    }
-
-    /**
-     * A tag that is definitely some sort of scalar.
-     *
-     * <p>Does not detect quoted strings, so those should have been parsed already.</p>
-     *
-     * @return a parsed tag
-     */
-    private Tag scalar() {
-        final StringBuilder builder = new StringBuilder();
-        int noLongerNumericAt = -1;
-        while (this.buffer.hasMore()) {
-            char current = this.buffer.peek();
-            if (current == '\\') { // escape -- we are significantly more lenient than original format at the moment
-                this.buffer.advance();
-                current = this.buffer.take();
-            } else if (Tokens.id(current)) {
-                this.buffer.advance();
-            } else { // end of value
-                break;
-            }
-            builder.append(current);
-            if (noLongerNumericAt == -1 && !Tokens.numeric(current)) {
-                noLongerNumericAt = builder.length();
-            }
-        }
-
-        final int length = builder.length();
-        final String built = builder.toString();
-        if (noLongerNumericAt == length) {
-            final char last = built.charAt(length - 1);
-            try {
-                switch (Character.toLowerCase(last)) { // try to read and return as a number
-                    case Tokens.TYPE_BYTE:
-                        return new ByteTag(Byte.parseByte(built.substring(0, length - 1)));
-                    case Tokens.TYPE_SHORT:
-                        return new ShortTag(Short.parseShort(built.substring(0, length - 1)));
-                    case Tokens.TYPE_INT:
-                        return new IntTag(Integer.parseInt(built.substring(0, length - 1)));
-                    case Tokens.TYPE_LONG:
-                        return new LongTag(Long.parseLong(built.substring(0, length - 1)));
-                    case Tokens.TYPE_FLOAT:
-                        final float floatValue = Float.parseFloat(built.substring(0, length - 1));
-                        if (Float.isFinite(floatValue)) { // don't accept NaN and Infinity
-                            return new FloatTag(floatValue);
-                        }
-                        break;
-                    case Tokens.TYPE_DOUBLE:
-                        final double doubleValue = Double.parseDouble(built.substring(0, length - 1));
-                        if (Double.isFinite(doubleValue)) { // don't accept NaN and Infinity
-                            return new DoubleTag(doubleValue);
-                        }
-                        break;
-                }
-            } catch (final NumberFormatException ignored) {
-            }
-        } else if (noLongerNumericAt == -1) { // if we run out of content without an explicit value separator, then we're either an integer or string tag -- all others have a character at the end
-            try {
-                return new IntTag(Integer.parseInt(built));
-            } catch (final NumberFormatException ex) {
-                if (built.indexOf('.') != -1) {
-                    try {
-                        return new DoubleTag(Double.parseDouble(built));
-                    } catch (final NumberFormatException ex2) {
-                        // ignore
-                    }
-                }
-            }
-        }
-
-        if (built.equalsIgnoreCase(Tokens.LITERAL_TRUE)) {
-            return new ByteTag((byte) 1);
-        } else if (built.equalsIgnoreCase(Tokens.LITERAL_FALSE)) {
-            return new ByteTag((byte) 0);
-        }
-        return new StringTag(built);
-
-    }
-
-    private boolean separatorOrCompleteWith(final char endCharacter) throws StringTagParseException {
-        if (this.buffer.takeIf(endCharacter)) {
-            return true;
-        }
-        this.buffer.expect(Tokens.VALUE_SEPARATOR);
-        return this.buffer.takeIf(endCharacter);
-    }
-
-    /**
-     * Remove simple escape sequences from a string.
-     *
-     * @param withEscapes input string with escapes
-     * @return string with escapes processed
-     */
-    private static String unescape(final String withEscapes) {
-        int escapeIdx = withEscapes.indexOf(Tokens.ESCAPE_MARKER);
-        if (escapeIdx == -1) { // nothing to unescape
-            return withEscapes;
-        }
-        int lastEscape = 0;
-        final StringBuilder output = new StringBuilder(withEscapes.length());
-        do {
-            output.append(withEscapes, lastEscape, escapeIdx);
-            lastEscape = escapeIdx + 1;
-        } while ((escapeIdx = withEscapes.indexOf(Tokens.ESCAPE_MARKER, lastEscape + 1)) != -1); // add one extra character to make sure we don't include escaped backslashes
-        output.append(withEscapes.substring(lastEscape));
-        return output.toString();
-    }
-
-    public void legacy(final boolean acceptLegacy) {
-        this.acceptLegacy = acceptLegacy;
-    }
-}

api/src/main/java/com/viaversion/viaversion/api/minecraft/nbt/TagStringWriter.java

@@ -1,261 +0,0 @@
-/*
- * This file is part of adventure, licensed under the MIT License.
- *
- * Copyright (c) 2017-2020 KyoriPowered
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in all
- * copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-package com.viaversion.viaversion.api.minecraft.nbt;
-
-import com.github.steveice10.opennbt.tag.builtin.ByteArrayTag;
-import com.github.steveice10.opennbt.tag.builtin.ByteTag;
-import com.github.steveice10.opennbt.tag.builtin.CompoundTag;
-import com.github.steveice10.opennbt.tag.builtin.DoubleTag;
-import com.github.steveice10.opennbt.tag.builtin.FloatTag;
-import com.github.steveice10.opennbt.tag.builtin.IntArrayTag;
-import com.github.steveice10.opennbt.tag.builtin.IntTag;
-import com.github.steveice10.opennbt.tag.builtin.ListTag;
-import com.github.steveice10.opennbt.tag.builtin.LongArrayTag;
-import com.github.steveice10.opennbt.tag.builtin.LongTag;
-import com.github.steveice10.opennbt.tag.builtin.NumberTag;
-import com.github.steveice10.opennbt.tag.builtin.ShortTag;
-import com.github.steveice10.opennbt.tag.builtin.StringTag;
-import com.github.steveice10.opennbt.tag.builtin.Tag;
-import java.io.IOException;
-import java.io.Writer;
-import java.util.Map;
-
-// Specific Via changes:
-// - Use OpenNBT tags
-// - Has not been updated to support pretty printing and legacy writing since that is not needed
-
-/**
- * An emitter for the SNBT format.
- *
- * <p>Details on the format are described in the package documentation.</p>
- */
-final class TagStringWriter implements AutoCloseable {
-    private final Appendable out;
-    private int level;
-    /**
-     * Whether a {@link Tokens#VALUE_SEPARATOR} needs to be printed before the beginning of the next object.
-     */
-    private boolean needsSeparator;
-
-    public TagStringWriter(final Appendable out) {
-        this.out = out;
-    }
-
-    // NBT-specific
-
-    public TagStringWriter writeTag(final Tag tag) throws IOException {
-        if (tag instanceof CompoundTag) {
-            return this.writeCompound((CompoundTag) tag);
-        } else if (tag instanceof ListTag) {
-            return this.writeList((ListTag) tag);
-        } else if (tag instanceof ByteArrayTag) {
-            return this.writeByteArray((ByteArrayTag) tag);
-        } else if (tag instanceof IntArrayTag) {
-            return this.writeIntArray((IntArrayTag) tag);
-        } else if (tag instanceof LongArrayTag) {
-            return this.writeLongArray((LongArrayTag) tag);
-        } else if (tag instanceof StringTag) {
-            return this.value(((StringTag) tag).getValue(), Tokens.EOF);
-        } else if (tag instanceof ByteTag) {
-            return this.value(Byte.toString(((NumberTag) tag).asByte()), Tokens.TYPE_BYTE);
-        } else if (tag instanceof ShortTag) {
-            return this.value(Short.toString(((NumberTag) tag).asShort()), Tokens.TYPE_SHORT);
-        } else if (tag instanceof IntTag) {
-            return this.value(Integer.toString(((NumberTag) tag).asInt()), Tokens.TYPE_INT);
-        } else if (tag instanceof LongTag) {
-            return this.value(Long.toString(((NumberTag) tag).asLong()), Character.toUpperCase(Tokens.TYPE_LONG)); // special case
-        } else if (tag instanceof FloatTag) {
-            return this.value(Float.toString(((NumberTag) tag).asFloat()), Tokens.TYPE_FLOAT);
-        } else if (tag instanceof DoubleTag) {
-            return this.value(Double.toString(((NumberTag) tag).asDouble()), Tokens.TYPE_DOUBLE);
-        } else {
-            throw new IOException("Unknown tag type: " + tag.getClass().getSimpleName());
-            // unknown!
-        }
-    }
-
-    private TagStringWriter writeCompound(final CompoundTag tag) throws IOException {
-        this.beginCompound();
-        for (final Map.Entry<String, Tag> entry : tag.entrySet()) {
-            this.key(entry.getKey());
-            this.writeTag(entry.getValue());
-        }
-        this.endCompound();
-        return this;
-    }
-
-    private TagStringWriter writeList(final ListTag tag) throws IOException {
-        this.beginList();
-        for (final Tag el : tag) {
-            this.printAndResetSeparator();
-            this.writeTag(el);
-        }
-        this.endList();
-        return this;
-    }
-
-    private TagStringWriter writeByteArray(final ByteArrayTag tag) throws IOException {
-        this.beginArray(Tokens.TYPE_BYTE);
-
-        final byte[] value = tag.getValue();
-        for (int i = 0, length = value.length; i < length; i++) {
-            this.printAndResetSeparator();
-            this.value(Byte.toString(value[i]), Tokens.TYPE_BYTE);
-        }
-        this.endArray();
-        return this;
-    }
-
-    private TagStringWriter writeIntArray(final IntArrayTag tag) throws IOException {
-        this.beginArray(Tokens.TYPE_INT);
-
-        final int[] value = tag.getValue();
-        for (int i = 0, length = value.length; i < length; i++) {
-            this.printAndResetSeparator();
-            this.value(Integer.toString(value[i]), Tokens.TYPE_INT);
-        }
-        this.endArray();
-        return this;
-    }
-
-    private TagStringWriter writeLongArray(final LongArrayTag tag) throws IOException {
-        this.beginArray(Tokens.TYPE_LONG);
-
-        final long[] value = tag.getValue();
-        for (int i = 0, length = value.length; i < length; i++) {
-            this.printAndResetSeparator();
-            this.value(Long.toString(value[i]), Tokens.TYPE_LONG);
-        }
-        this.endArray();
-        return this;
-    }
-
-    // Value types
-
-    public TagStringWriter beginCompound() throws IOException {
-        this.printAndResetSeparator();
-        this.level++;
-        this.out.append(Tokens.COMPOUND_BEGIN);
-        return this;
-    }
-
-    public TagStringWriter endCompound() throws IOException {
-        this.out.append(Tokens.COMPOUND_END);
-        this.level--;
-        this.needsSeparator = true;
-        return this;
-    }
-
-    public TagStringWriter key(final String key) throws IOException {
-        this.printAndResetSeparator();
-        this.writeMaybeQuoted(key, false);
-        this.out.append(Tokens.COMPOUND_KEY_TERMINATOR);
-        return this;
-    }
-
-    public TagStringWriter value(final String value, final char valueType) throws IOException {
-        if (valueType == Tokens.EOF) { // string doesn't have its type
-            this.writeMaybeQuoted(value, true);
-        } else {
-            this.out.append(value);
-            if (valueType != Tokens.TYPE_INT) {
-                this.out.append(valueType);
-            }
-        }
-        this.needsSeparator = true;
-        return this;
-    }
-
-    public TagStringWriter beginList() throws IOException {
-        this.printAndResetSeparator();
-        this.level++;
-        this.out.append(Tokens.ARRAY_BEGIN);
-        return this;
-    }
-
-    public TagStringWriter endList() throws IOException {
-        this.out.append(Tokens.ARRAY_END);
-        this.level--;
-        this.needsSeparator = true;
-        return this;
-    }
-
-    private TagStringWriter beginArray(final char type) throws IOException {
-        this.beginList()
-                .out.append(type)
-                .append(Tokens.ARRAY_SIGNATURE_SEPARATOR);
-        return this;
-    }
-
-    private TagStringWriter endArray() throws IOException {
-        return this.endList();
-    }
-
-    private void writeMaybeQuoted(final String content, boolean requireQuotes) throws IOException {
-        if (!requireQuotes) {
-            for (int i = 0; i < content.length(); ++i) {
-                if (!Tokens.id(content.charAt(i))) {
-                    requireQuotes = true;
-                    break;
-                }
-            }
-        }
-        if (requireQuotes) {
-            this.out.append(Tokens.DOUBLE_QUOTE);
-            this.out.append(escape(content, Tokens.DOUBLE_QUOTE));
-            this.out.append(Tokens.DOUBLE_QUOTE);
-        } else {
-            this.out.append(content);
-        }
-    }
-
-    private static String escape(final String content, final char quoteChar) {
-        final StringBuilder output = new StringBuilder(content.length());
-        for (int i = 0; i < content.length(); ++i) {
-            final char c = content.charAt(i);
-            if (c == quoteChar || c == '\\') {
-                output.append(Tokens.ESCAPE_MARKER);
-            }
-            output.append(c);
-        }
-        return output.toString();
-    }
-
-    private void printAndResetSeparator() throws IOException {
-        if (this.needsSeparator) {
-            this.out.append(Tokens.VALUE_SEPARATOR);
-            this.needsSeparator = false;
-        }
-    }
-
-    @Override
-    public void close() throws IOException {
-        if (this.level != 0) {
-            throw new IllegalStateException("Document finished with unbalanced start and end objects");
-        }
-        if (this.out instanceof Writer) {
-            ((Writer) this.out).flush();
-        }
-    }
-}

api/src/main/java/com/viaversion/viaversion/api/minecraft/nbt/Tokens.java

@@ -1,89 +0,0 @@
-/*
- * This file is part of adventure, licensed under the MIT License.
- *
- * Copyright (c) 2017-2021 KyoriPowered
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in all
- * copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-package com.viaversion.viaversion.api.minecraft.nbt;
-
-final class Tokens {
-    // Compounds
-    static final char COMPOUND_BEGIN = '{';
-    static final char COMPOUND_END = '}';
-    static final char COMPOUND_KEY_TERMINATOR = ':';
-
-    // Arrays
-    static final char ARRAY_BEGIN = '[';
-    static final char ARRAY_END = ']';
-    static final char ARRAY_SIGNATURE_SEPARATOR = ';';
-
-    static final char VALUE_SEPARATOR = ',';
-
-    static final char SINGLE_QUOTE = '\'';
-    static final char DOUBLE_QUOTE = '"';
-    static final char ESCAPE_MARKER = '\\';
-
-    static final char TYPE_BYTE = 'b';
-    static final char TYPE_SHORT = 's';
-    static final char TYPE_INT = 'i'; // array only
-    static final char TYPE_LONG = 'l';
-    static final char TYPE_FLOAT = 'f';
-    static final char TYPE_DOUBLE = 'd';
-
-    static final String LITERAL_TRUE = "true";
-    static final String LITERAL_FALSE = "false";
-
-    static final String NEWLINE = System.getProperty("line.separator", "\n");
-    static final char EOF = '\0';
-
-    private Tokens() {
-    }
-
-    /**
-     * Return if a character is a valid component in an identifier.
-     *
-     * <p>An identifier character must match the expression {@code [a-zA-Z0-9_+.-]}</p>
-     *
-     * @param c the character
-     * @return identifier
-     */
-    static boolean id(final char c) {
-        return (c >= 'a' && c <= 'z')
-                || (c >= 'A' && c <= 'Z')
-                || (c >= '0' && c <= '9')
-                || c == '-' || c == '_'
-                || c == '.' || c == '+';
-    }
-
-    /**
-     * Return whether a character could be at some position in a number.
-     *
-     * <p>A string passing this check does not necessarily mean it is syntactically valid.</p>
-     *
-     * @param c character to check
-     * @return if possibly part of a number
-     */
-    static boolean numeric(final char c) {
-        return (c >= '0' && c <= '9') // digit
-                || c == '+' || c == '-' // positive or negative
-                || c == 'e' || c == 'E' // exponent
-                || c == '.'; // decimal
-    }
-}

api/src/main/java/com/viaversion/viaversion/api/minecraft/signature/SignableCommandArgumentsProvider.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
- * Copyright (C) 2016-2023 ViaVersion and contributors
+ * Copyright (C) 2023 ViaVersion and contributors
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -20,16 +20,18 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
  */
-package com.viaversion.viaversion.api.type.types.version;
+package com.viaversion.viaversion.api.minecraft.signature;
 
-import com.viaversion.viaversion.api.minecraft.metadata.MetaType;
-import com.viaversion.viaversion.api.type.types.minecraft.ModernMetaType;
+import com.viaversion.viaversion.api.platform.providers.Provider;
+import com.viaversion.viaversion.util.Pair;
 
-@Deprecated/*(forRemoval = true)*/
-public class Metadata1_16Type extends ModernMetaType {
+import java.util.List;
 
-    @Override
-    protected MetaType getType(final int index) {
-        return Types1_16.META_TYPES.byId(index);
-    }
+public abstract class SignableCommandArgumentsProvider implements Provider {
+
+    /**
+     * @param command The command to get the signable arguments for.
+     * @return The signable arguments for the command.
+     */
+    public abstract List<Pair<String, String>> getSignableArguments(final String command);
 }

api/src/main/java/com/viaversion/viaversion/api/minecraft/signature/model/DecoratableMessage.java

@@ -0,0 +1,60 @@
+/*
+ * This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
+ * Copyright (C) 2023-2023 ViaVersion and contributors
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+package com.viaversion.viaversion.api.minecraft.signature.model;
+
+import com.google.gson.JsonElement;
+import com.google.gson.JsonObject;
+
+public class DecoratableMessage {
+
+    private final String plain;
+    private final JsonElement decorated;
+
+    public DecoratableMessage(final String plain) {
+        this(plain, createLiteralText(plain));
+    }
+
+    public DecoratableMessage(final String plain, final JsonElement decorated) {
+        this.plain = plain;
+        this.decorated = decorated;
+    }
+
+    public String plain() {
+        return this.plain;
+    }
+
+    public JsonElement decorated() {
+        return this.decorated;
+    }
+
+    public boolean isDecorated() {
+        return !this.decorated.equals(createLiteralText(plain));
+    }
+
+    private static JsonElement createLiteralText(final String text) {
+        final JsonObject object = new JsonObject();
+        object.addProperty("text", text);
+        return object;
+    }
+
+}

api/src/main/java/com/viaversion/viaversion/api/minecraft/signature/model/MessageMetadata.java

@@ -0,0 +1,56 @@
+/*
+ * This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
+ * Copyright (C) 2023-2023 ViaVersion and contributors
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+package com.viaversion.viaversion.api.minecraft.signature.model;
+
+import java.time.Instant;
+import java.util.UUID;
+
+public class MessageMetadata {
+
+    private final UUID sender;
+    private final Instant timestamp;
+    private final long salt;
+
+    public MessageMetadata(final UUID sender, final Instant timestamp, final long salt) {
+        this.sender = sender;
+        this.timestamp = timestamp;
+        this.salt = salt;
+    }
+
+    public MessageMetadata(final UUID sender, final long timestamp, final long salt) {
+        this(sender, Instant.ofEpochMilli(timestamp), salt);
+    }
+
+    public UUID sender() {
+        return this.sender;
+    }
+
+    public Instant timestamp() {
+        return this.timestamp;
+    }
+
+    public long salt() {
+        return this.salt;
+    }
+
+}

api/src/main/java/com/viaversion/viaversion/api/minecraft/signature/model/chain/v1_19_1/MessageBody.java

@@ -0,0 +1,82 @@
+/*
+ * This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
+ * Copyright (C) 2023-2023 ViaVersion and contributors
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+package com.viaversion.viaversion.api.minecraft.signature.model.chain.v1_19_1;
+
+import com.viaversion.viaversion.api.minecraft.PlayerMessageSignature;
+import com.viaversion.viaversion.api.minecraft.signature.model.DecoratableMessage;
+import com.viaversion.viaversion.api.minecraft.signature.util.DataConsumer;
+import com.viaversion.viaversion.util.GsonUtil;
+
+import java.io.ByteArrayOutputStream;
+import java.io.DataOutputStream;
+import java.io.IOException;
+import java.nio.charset.StandardCharsets;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+import java.time.Instant;
+
+public class MessageBody {
+
+    private static final byte HASH_SEPARATOR_BYTE = 70;
+
+    private final DecoratableMessage content;
+    private final Instant timestamp;
+    private final long salt;
+    private final PlayerMessageSignature[] lastSeenMessages;
+
+    public MessageBody(final DecoratableMessage content, final Instant timestamp, final long salt, final PlayerMessageSignature[] lastSeenMessages) {
+        this.content = content;
+        this.timestamp = timestamp;
+        this.salt = salt;
+        this.lastSeenMessages = lastSeenMessages;
+    }
+
+    public void update(final DataConsumer dataConsumer) {
+        try {
+            final MessageDigest digest = MessageDigest.getInstance("SHA-256");
+            final ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
+            final DataOutputStream dataOutputStream = new DataOutputStream(outputStream);
+            dataOutputStream.writeLong(this.salt);
+            dataOutputStream.writeLong(this.timestamp.getEpochSecond());
+
+            dataOutputStream.write(this.content.plain().getBytes(StandardCharsets.UTF_8));
+            dataOutputStream.write(HASH_SEPARATOR_BYTE);
+            if (this.content.isDecorated()) {
+                dataOutputStream.write(GsonUtil.toSortedString(this.content.decorated(), null).getBytes(StandardCharsets.UTF_8));
+            }
+
+            for (PlayerMessageSignature lastSeenMessage : this.lastSeenMessages) {
+                dataOutputStream.writeByte(HASH_SEPARATOR_BYTE);
+                dataOutputStream.writeLong(lastSeenMessage.uuid().getMostSignificantBits());
+                dataOutputStream.writeLong(lastSeenMessage.uuid().getLeastSignificantBits());
+                dataOutputStream.write(lastSeenMessage.signatureBytes());
+            }
+
+            digest.update(outputStream.toByteArray());
+            dataConsumer.accept(digest.digest());
+        } catch (NoSuchAlgorithmException | IOException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+}

api/src/main/java/com/viaversion/viaversion/api/minecraft/signature/model/chain/v1_19_1/MessageHeader.java

@@ -0,0 +1,47 @@
+/*
+ * This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
+ * Copyright (C) 2023-2023 ViaVersion and contributors
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+package com.viaversion.viaversion.api.minecraft.signature.model.chain.v1_19_1;
+
+import com.viaversion.viaversion.api.minecraft.signature.util.DataConsumer;
+
+import java.util.UUID;
+
+public class MessageHeader {
+
+    private final byte[] precedingSignature;
+    private final UUID sender;
+
+    public MessageHeader(final byte[] precedingSignature, final UUID sender) {
+        this.precedingSignature = precedingSignature;
+        this.sender = sender;
+    }
+
+    public void update(final DataConsumer dataConsumer) {
+        if (this.precedingSignature != null) {
+            dataConsumer.accept(this.precedingSignature);
+        }
+
+        dataConsumer.accept(this.sender);
+    }
+
+}

api/src/main/java/com/viaversion/viaversion/api/minecraft/signature/model/chain/v1_19_3/MessageBody.java

@@ -0,0 +1,60 @@
+/*
+ * This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
+ * Copyright (C) 2023-2023 ViaVersion and contributors
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+package com.viaversion.viaversion.api.minecraft.signature.model.chain.v1_19_3;
+
+import com.google.common.primitives.Ints;
+import com.google.common.primitives.Longs;
+import com.viaversion.viaversion.api.minecraft.PlayerMessageSignature;
+import com.viaversion.viaversion.api.minecraft.signature.util.DataConsumer;
+
+import java.nio.charset.StandardCharsets;
+import java.time.Instant;
+
+public class MessageBody {
+
+    private final String content;
+    private final Instant timestamp;
+    private final long salt;
+    private final PlayerMessageSignature[] lastSeenMessages;
+
+    public MessageBody(final String content, final Instant timestamp, final long salt, final PlayerMessageSignature[] lastSeenMessages) {
+        this.content = content;
+        this.timestamp = timestamp;
+        this.salt = salt;
+        this.lastSeenMessages = lastSeenMessages;
+    }
+
+    public void update(final DataConsumer dataConsumer) {
+        dataConsumer.accept(Longs.toByteArray(this.salt));
+        dataConsumer.accept(Longs.toByteArray(this.timestamp.getEpochSecond()));
+        final byte[] contentData = this.content.getBytes(StandardCharsets.UTF_8);
+        dataConsumer.accept(Ints.toByteArray(contentData.length));
+        dataConsumer.accept(contentData);
+
+        dataConsumer.accept(Ints.toByteArray(this.lastSeenMessages.length));
+        for (PlayerMessageSignature messageSignatureData : this.lastSeenMessages) {
+            dataConsumer.accept(messageSignatureData.signatureBytes());
+        }
+    }
+
+}

api/src/main/java/com/viaversion/viaversion/api/minecraft/signature/model/chain/v1_19_3/MessageLink.java

@@ -0,0 +1,56 @@
+/*
+ * This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
+ * Copyright (C) 2023-2023 ViaVersion and contributors
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+package com.viaversion.viaversion.api.minecraft.signature.model.chain.v1_19_3;
+
+import com.google.common.primitives.Ints;
+import com.viaversion.viaversion.api.minecraft.signature.util.DataConsumer;
+
+import java.util.UUID;
+
+public class MessageLink {
+
+    private final int index;
+    private final UUID sender;
+    private final UUID sessionId;
+
+    public MessageLink(final UUID sender, final UUID sessionId) {
+        this(0, sender, sessionId);
+    }
+
+    public MessageLink(final int index, final UUID sender, final UUID sessionId) {
+        this.index = index;
+        this.sender = sender;
+        this.sessionId = sessionId;
+    }
+
+    public void update(final DataConsumer dataConsumer) {
+        dataConsumer.accept(this.sender);
+        dataConsumer.accept(this.sessionId);
+        dataConsumer.accept(Ints.toByteArray(this.index));
+    }
+
+    public MessageLink next() {
+        return this.index == Integer.MAX_VALUE ? null : new MessageLink(this.index + 1, this.sender, this.sessionId);
+    }
+
+}

api/src/main/java/com/viaversion/viaversion/api/minecraft/signature/storage/ChatSession.java

@@ -0,0 +1,78 @@
+/*
+ * This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
+ * Copyright (C) 2023-2023 ViaVersion and contributors
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+package com.viaversion.viaversion.api.minecraft.signature.storage;
+
+import com.viaversion.viaversion.api.connection.StorableObject;
+import com.viaversion.viaversion.api.minecraft.ProfileKey;
+import com.viaversion.viaversion.api.minecraft.signature.util.DataConsumer;
+
+import java.security.PrivateKey;
+import java.security.Signature;
+import java.security.SignatureException;
+import java.util.Objects;
+import java.util.UUID;
+import java.util.function.Consumer;
+
+public class ChatSession implements StorableObject {
+
+    private final UUID uuid;
+    private final PrivateKey privateKey;
+    private final ProfileKey profileKey;
+    private final Signature signer;
+
+    public ChatSession(final UUID uuid, final PrivateKey privateKey, final ProfileKey profileKey) {
+        Objects.requireNonNull(uuid, "uuid");
+        Objects.requireNonNull(privateKey, "privateKey");
+        Objects.requireNonNull(profileKey, "profileKey");
+        this.uuid = uuid;
+        this.privateKey = privateKey;
+        this.profileKey = profileKey;
+
+        try {
+            this.signer = Signature.getInstance("SHA256withRSA");
+            this.signer.initSign(this.privateKey);
+        } catch (Throwable e) {
+            throw new RuntimeException("Failed to initialize signature", e);
+        }
+    }
+
+    public UUID getUuid() {
+        return this.uuid;
+    }
+
+    public ProfileKey getProfileKey() {
+        return this.profileKey;
+    }
+
+    public byte[] sign(final Consumer<DataConsumer> dataConsumer) throws SignatureException {
+        dataConsumer.accept(bytes -> {
+            try {
+                this.signer.update(bytes);
+            } catch (SignatureException e) {
+                throw new RuntimeException(e);
+            }
+        });
+        return this.signer.sign();
+    }
+
+}

api/src/main/java/com/viaversion/viaversion/api/minecraft/signature/storage/ChatSession1_19_0.java

@@ -0,0 +1,55 @@
+/*
+ * This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
+ * Copyright (C) 2023-2023 ViaVersion and contributors
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+package com.viaversion.viaversion.api.minecraft.signature.storage;
+
+import com.viaversion.viaversion.api.minecraft.ProfileKey;
+import com.viaversion.viaversion.api.minecraft.signature.model.DecoratableMessage;
+import com.viaversion.viaversion.api.minecraft.signature.model.MessageMetadata;
+import com.viaversion.viaversion.util.GsonUtil;
+
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+import java.nio.charset.StandardCharsets;
+import java.security.PrivateKey;
+import java.security.SignatureException;
+import java.util.UUID;
+
+public class ChatSession1_19_0 extends ChatSession {
+
+    public ChatSession1_19_0(UUID uuid, PrivateKey privateKey, ProfileKey profileKey) {
+        super(uuid, privateKey, profileKey);
+    }
+
+    public byte[] signChatMessage(final MessageMetadata metadata, final DecoratableMessage content) throws SignatureException {
+        return this.sign(signer -> {
+            final byte[] data = new byte[32];
+            final ByteBuffer buffer = ByteBuffer.wrap(data).order(ByteOrder.BIG_ENDIAN);
+            buffer.putLong(metadata.salt());
+            buffer.putLong(metadata.sender().getMostSignificantBits()).putLong(metadata.sender().getLeastSignificantBits());
+            buffer.putLong(metadata.timestamp().getEpochSecond());
+            signer.accept(data);
+            signer.accept(GsonUtil.toSortedString(content.decorated(), null).getBytes(StandardCharsets.UTF_8));
+        });
+    }
+
+}

api/src/main/java/com/viaversion/viaversion/api/minecraft/signature/storage/ChatSession1_19_1.java

@@ -0,0 +1,55 @@
+/*
+ * This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
+ * Copyright (C) 2023-2023 ViaVersion and contributors
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+package com.viaversion.viaversion.api.minecraft.signature.storage;
+
+import com.viaversion.viaversion.api.minecraft.PlayerMessageSignature;
+import com.viaversion.viaversion.api.minecraft.ProfileKey;
+import com.viaversion.viaversion.api.minecraft.signature.model.DecoratableMessage;
+import com.viaversion.viaversion.api.minecraft.signature.model.MessageMetadata;
+import com.viaversion.viaversion.api.minecraft.signature.model.chain.v1_19_1.MessageBody;
+import com.viaversion.viaversion.api.minecraft.signature.model.chain.v1_19_1.MessageHeader;
+
+import java.security.PrivateKey;
+import java.security.SignatureException;
+import java.util.UUID;
+
+public class ChatSession1_19_1 extends ChatSession {
+
+    private byte[] precedingSignature;
+
+    public ChatSession1_19_1(UUID uuid, PrivateKey privateKey, ProfileKey profileKey) {
+        super(uuid, privateKey, profileKey);
+    }
+
+    public byte[] signChatMessage(final MessageMetadata metadata, final DecoratableMessage content, final PlayerMessageSignature[] lastSeenMessages) throws SignatureException {
+        final byte[] signature = this.sign(signer -> {
+            final MessageHeader messageHeader = new MessageHeader(this.precedingSignature, metadata.sender());
+            final MessageBody messageBody = new MessageBody(content, metadata.timestamp(), metadata.salt(), lastSeenMessages);
+            messageHeader.update(signer);
+            messageBody.update(signer);
+        });
+        this.precedingSignature = signature;
+        return signature;
+    }
+
+}

api/src/main/java/com/viaversion/viaversion/api/minecraft/signature/storage/ChatSession1_19_3.java

@@ -0,0 +1,70 @@
+/*
+ * This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
+ * Copyright (C) 2023-2023 ViaVersion and contributors
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+package com.viaversion.viaversion.api.minecraft.signature.storage;
+
+import com.google.common.primitives.Ints;
+import com.viaversion.viaversion.api.minecraft.PlayerMessageSignature;
+import com.viaversion.viaversion.api.minecraft.ProfileKey;
+import com.viaversion.viaversion.api.minecraft.signature.model.MessageMetadata;
+import com.viaversion.viaversion.api.minecraft.signature.model.chain.v1_19_3.MessageBody;
+import com.viaversion.viaversion.api.minecraft.signature.model.chain.v1_19_3.MessageLink;
+
+import java.security.PrivateKey;
+import java.security.SignatureException;
+import java.util.UUID;
+
+public class ChatSession1_19_3 extends ChatSession {
+
+    private final UUID sessionId = UUID.randomUUID();
+    private MessageLink link;
+
+    public ChatSession1_19_3(UUID uuid, PrivateKey privateKey, ProfileKey profileKey) {
+        super(uuid, privateKey, profileKey);
+
+        this.link = new MessageLink(uuid, this.sessionId);
+    }
+
+    public byte[] signChatMessage(final MessageMetadata metadata, final String content, final PlayerMessageSignature[] lastSeenMessages) throws SignatureException {
+        return this.sign(signer -> {
+            final MessageLink messageLink = this.nextLink();
+            final MessageBody messageBody = new MessageBody(content, metadata.timestamp(), metadata.salt(), lastSeenMessages);
+            signer.accept(Ints.toByteArray(1));
+            messageLink.update(signer);
+            messageBody.update(signer);
+        });
+    }
+
+    private MessageLink nextLink() {
+        final MessageLink messageLink = this.link;
+        if (messageLink != null) {
+            this.link = messageLink.next();
+        }
+
+        return messageLink;
+    }
+
+    public UUID getSessionId() {
+        return this.sessionId;
+    }
+
+}

api/src/main/java/com/viaversion/viaversion/api/minecraft/signature/util/DataConsumer.java

@@ -1,6 +1,6 @@
 /*
  * This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
- * Copyright (C) 2016-2023 ViaVersion and contributors
+ * Copyright (C) 2023-2023 ViaVersion and contributors
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -20,20 +20,20 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  * SOFTWARE.
  */
-package com.viaversion.viaversion.api.type.types.minecraft;
+package com.viaversion.viaversion.api.minecraft.signature.util;
 
-import com.viaversion.viaversion.api.type.Type;
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+import java.util.UUID;
+import java.util.function.Consumer;
 
-@Deprecated/*(forRemoval = true)*/
-public class Particle1_17Type extends AbstractParticleType {
+@FunctionalInterface
+public interface DataConsumer extends Consumer<byte[]> {
 
-    public Particle1_17Type() {
-        readers.put(4, blockHandler());
-        readers.put(25, blockHandler());
-        readers.put(15, dustHandler());
-        readers.put(16, dustTransitionHandler());
-        readers.put(36, itemHandler(Type.FLAT_VAR_INT_ITEM));
-        readers.put(37, vibrationHandler(Type.POSITION1_14));
+    default void accept(final UUID uuid) {
+        final byte[] serializedUuid = new byte[16];
+        ByteBuffer.wrap(serializedUuid).order(ByteOrder.BIG_ENDIAN).putLong(uuid.getMostSignificantBits()).putLong(uuid.getLeastSignificantBits());
+        this.accept(serializedUuid);
     }
-}
 
+}

api/src/main/java/com/viaversion/viaversion/api/platform/UnsupportedSoftware.java

@@ -22,6 +22,8 @@
  */
 package com.viaversion.viaversion.api.platform;
 
+import org.checkerframework.checker.nullness.qual.Nullable;
+
 public interface UnsupportedSoftware {
 
     /**
@@ -38,10 +40,19 @@ public interface UnsupportedSoftware {
      */
     String getReason();
 
+    /**
+     * Returns the name of unsupported software if present.
+     *
+     * @return name of unsupported software if it is matched, else null
+     */
+    @Nullable String match();
+
     /**
      * Returns whether the unsupported software is present.
      *
      * @return true if the unsupported software is found
      */
-    boolean findMatch();
+    default boolean findMatch() {
+        return match() != null;
+    }
 }

api/src/main/java/com/viaversion/viaversion/api/platform/ViaInjector.java

@@ -31,14 +31,14 @@ public interface ViaInjector {
     /**
      * Inject into the current Platform
      *
-     * @throws Exception If there is an error with injecting
+     * @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
+     * @throws Exception if there is an error with uninjecting
      */
     void uninject() throws Exception;
 
@@ -57,7 +57,7 @@ public interface ViaInjector {
      * For proxies, this returns the lowest supported protocol version.
      *
      * @return server protocol version
-     * @throws Exception if there is an error with getting this info, eg. not binded
+     * @throws Exception if there is an error with getting this info, e.g. not binded
      * @see ViaPlatform#isProxy()
      */
     int getServerProtocolVersion() throws Exception;
@@ -66,7 +66,7 @@ public interface ViaInjector {
      * Returns the supported server protocol versions.
      *
      * @return server protocol versions
-     * @throws Exception if there is an error with getting this info, eg. not binded
+     * @throws Exception if there is an error with getting this info, e.g. not binded
      * @see ViaPlatform#isProxy()
      */
     default IntSortedSet getServerProtocolVersions() throws Exception {

api/src/main/java/com/viaversion/viaversion/api/platform/ViaPlatform.java

@@ -23,6 +23,7 @@
 package com.viaversion.viaversion.api.platform;
 
 import com.google.gson.JsonObject;
+import com.viaversion.viaversion.api.Via;
 import com.viaversion.viaversion.api.ViaAPI;
 import com.viaversion.viaversion.api.command.ViaCommandSender;
 import com.viaversion.viaversion.api.configuration.ConfigurationProvider;
@@ -104,23 +105,22 @@ public interface ViaPlatform<T> {
     PlatformTask runSync(Runnable runnable);
 
     /**
-     * Run a task Sync after a interval
-     * This must be only used after plugin enable.
+     * Runs a synchronous task after a delay in ticks.
      *
-     * @param runnable The task to run
-     * @param ticks    The interval to run it after
-     * @return The Task ID
+     * @param runnable task to run
+     * @param delay    delay in ticks to run it after
+     * @return created task
      */
-    PlatformTask runSync(Runnable runnable, long ticks);
+    PlatformTask runSync(Runnable runnable, long delay);
 
     /**
-     * Run a task at a repeating interval.
+     * Runs a synchronous task at a repeating interval.
      *
-     * @param runnable The task to run
-     * @param ticks    The interval to run it at
-     * @return The Task ID
+     * @param runnable task to run
+     * @param period   period in ticks to run at
+     * @return created task
      */
-    PlatformTask runRepeatingSync(Runnable runnable, long ticks);
+    PlatformTask runRepeatingSync(Runnable runnable, long period);
 
     /**
      * Get the online players
@@ -181,13 +181,10 @@ public interface ViaPlatform<T> {
      */
     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();
+    @Deprecated/*(forRemoval = true)*/
+    default ConfigurationProvider getConfigurationProvider() {
+        return Via.getManager().getConfigurationProvider();
+    }
 
     /**
      * Get ViaVersions's data folder.
@@ -209,12 +206,13 @@ public interface ViaPlatform<T> {
     JsonObject getDump();
 
     /**
-     * Get if older clients are allowed to be used using ViaVersion.
-     * (Only 1.9 on 1.9.2 server is supported by ViaVersion alone)
+     * Get if older clients are allowed using ViaVersion.
      *
      * @return True if allowed
      */
-    boolean isOldClientsAllowed();
+    default boolean isOldClientsAllowed() {
+        return true;
+    }
 
     /**
      * Returns an immutable collection of classes to be checked as unsupported software with their software name.

api/src/main/java/com/viaversion/viaversion/api/platform/ViaPlatformLoader.java

@@ -25,7 +25,7 @@ package com.viaversion.viaversion.api.platform;
 public interface ViaPlatformLoader {
 
     /**
-     * Initialise the loading for a platform, eg. registering listeners / providers / events etc.
+     * Initialise the loading for a platform, e.g. registering listeners / providers / events etc.
      */
     void load();
 

api/src/main/java/com/viaversion/viaversion/api/protocol/AbstractProtocol.java

@@ -77,6 +77,7 @@ public abstract class AbstractProtocol<CU extends ClientboundPacketType, CM exte
 
     /**
      * Creates a protocol with automated id mapping if the respective packet type classes are not null.
+     * They are also required to track the CONFIGURATION state.
      */
     protected AbstractProtocol(@Nullable Class<CU> unmappedClientboundPacketType, @Nullable Class<CM> mappedClientboundPacketType,
                                @Nullable Class<SM> mappedServerboundPacketType, @Nullable Class<SU> unmappedServerboundPacketType) {
@@ -95,6 +96,7 @@ public abstract class AbstractProtocol<CU extends ClientboundPacketType, CM exte
         initialized = true;
 
         registerPackets();
+        registerConfigurationChangeHandlers();
 
         // Register the rest of the ids with no handlers if necessary
         if (unmappedClientboundPacketType != null && mappedClientboundPacketType != null
@@ -117,6 +119,33 @@ public abstract class AbstractProtocol<CU extends ClientboundPacketType, CM exte
         }
     }
 
+    protected void registerConfigurationChangeHandlers() {
+        // Register handlers for protocol state switching
+        // Assuming ids will change too often, it is cleaner to register them here instead of the base protocols,
+        // even if there will be multiple of these handlers
+        final SU configurationAcknowledgedPacket = configurationAcknowledgedPacket();
+        if (configurationAcknowledgedPacket != null) {
+            registerServerbound(configurationAcknowledgedPacket, setClientStateHandler(State.CONFIGURATION));
+        }
+
+        final CU startConfigurationPacket = startConfigurationPacket();
+        if (startConfigurationPacket != null) {
+            registerClientbound(startConfigurationPacket, setServerStateHandler(State.CONFIGURATION));
+        }
+
+        final ServerboundPacketType finishConfigurationPacket = serverboundFinishConfigurationPacket();
+        if (finishConfigurationPacket != null) {
+            final int id = finishConfigurationPacket.getId();
+            registerServerbound(State.CONFIGURATION, id, id, setClientStateHandler(State.PLAY));
+        }
+
+        final ClientboundPacketType clientboundFinishConfigurationPacket = clientboundFinishConfigurationPacket();
+        if (clientboundFinishConfigurationPacket != null) {
+            final int id = clientboundFinishConfigurationPacket.getId();
+            registerClientbound(State.CONFIGURATION, id, id, setServerStateHandler(State.PLAY));
+        }
+    }
+
     private <U extends PacketType, M extends PacketType> void registerPacketIdChanges(
             Map<State, PacketTypeMap<U>> unmappedPacketTypes,
             Map<State, PacketTypeMap<M>> mappedPacketTypes,
@@ -208,6 +237,28 @@ public abstract class AbstractProtocol<CU extends ClientboundPacketType, CM exte
         return Collections.emptyMap();
     }
 
+    protected @Nullable SU configurationAcknowledgedPacket() {
+        final Map<State, PacketTypeMap<SU>> packetTypes = packetTypesProvider.unmappedServerboundPacketTypes();
+        final PacketTypeMap<SU> packetTypeMap = packetTypes.get(State.PLAY);
+        return packetTypeMap != null ? packetTypeMap.typeByName("CONFIGURATION_ACKNOWLEDGED") : null;
+    }
+
+    protected @Nullable CU startConfigurationPacket() {
+        final Map<State, PacketTypeMap<CU>> packetTypes = packetTypesProvider.unmappedClientboundPacketTypes();
+        final PacketTypeMap<CU> packetTypeMap = packetTypes.get(State.PLAY);
+        return packetTypeMap != null ? packetTypeMap.typeByName("START_CONFIGURATION") : null;
+    }
+
+    protected @Nullable ServerboundPacketType serverboundFinishConfigurationPacket() {
+        // To be overridden
+        return null;
+    }
+
+    protected @Nullable ClientboundPacketType clientboundFinishConfigurationPacket() {
+        // To be overridden
+        return null;
+    }
+
     // ---------------------------------------------------------------------------------
 
     @Override
@@ -361,7 +412,7 @@ public abstract class AbstractProtocol<CU extends ClientboundPacketType, CM exte
         }
     }
 
-    private void throwRemapError(Direction direction, State state, int unmappedPacketId, int mappedPacketId, InformativeException e) throws InformativeException {
+    protected void throwRemapError(Direction direction, State state, int unmappedPacketId, int mappedPacketId, InformativeException e) throws InformativeException {
         // Don't print errors during handshake/login/status
         if (state != State.PLAY && direction == Direction.SERVERBOUND && !Via.getManager().debugHandler().enabled()) {
             e.setShouldBePrinted(false);
@@ -373,7 +424,7 @@ public abstract class AbstractProtocol<CU extends ClientboundPacketType, CM exte
             Via.getPlatform().getLogger().warning("ERROR IN " + getClass().getSimpleName() + " IN REMAP OF " + packetType + " (" + toNiceHex(unmappedPacketId) + ")");
         } else {
             Via.getPlatform().getLogger().warning("ERROR IN " + getClass().getSimpleName()
-                    + " IN REMAP OF " + toNiceHex(unmappedPacketId) + "->" + toNiceHex(mappedPacketId));
+                    + " IN REMAP OF " + state + " " + toNiceHex(unmappedPacketId) + "->" + toNiceHex(mappedPacketId));
         }
         throw e;
     }
@@ -404,6 +455,14 @@ public abstract class AbstractProtocol<CU extends ClientboundPacketType, CM exte
         }
     }
 
+    protected PacketHandler setClientStateHandler(final State state) {
+        return wrapper -> wrapper.user().getProtocolInfo().setClientState(state);
+    }
+
+    protected PacketHandler setServerStateHandler(final State state) {
+        return wrapper -> wrapper.user().getProtocolInfo().setServerState(state);
+    }
+
     @Override
     public PacketTypesProvider<CU, CM, SM, SU> getPacketTypesProvider() {
         return packetTypesProvider;

api/src/main/java/com/viaversion/viaversion/api/protocol/Protocol.java

@@ -23,6 +23,7 @@
 package com.viaversion.viaversion.api.protocol;
 
 import com.google.common.annotations.Beta;
+import com.google.common.base.Preconditions;
 import com.viaversion.viaversion.api.connection.UserConnection;
 import com.viaversion.viaversion.api.data.MappingData;
 import com.viaversion.viaversion.api.platform.providers.ViaProviders;
@@ -58,6 +59,16 @@ public interface Protocol<CU extends ClientboundPacketType, CM extends Clientbou
         registerServerbound(state, unmappedPacketId, mappedPacketId, handler, false);
     }
 
+    default void registerClientbound(State state, ClientboundPacketType packetType, PacketHandler handler) {
+        Preconditions.checkArgument(packetType.state() == state);
+        registerClientbound(state, packetType.getId(), packetType.getId(), handler, false);
+    }
+
+    default void registerServerbound(State state, ServerboundPacketType packetType, PacketHandler handler) {
+        Preconditions.checkArgument(packetType.state() == state);
+        registerServerbound(state, packetType.getId(), packetType.getId(), handler, false);
+    }
+
     /**
      * Registers a serverbound packet, with id transformation and remapper.
      *

api/src/main/java/com/viaversion/viaversion/api/protocol/ProtocolPipeline.java

@@ -69,10 +69,17 @@ public interface ProtocolPipeline extends SimpleProtocol {
     /**
      * Returns the list of protocols this pipeline contains.
      *
-     * @return list of protocols in this pipe
+     * @return immutable list of protocols in this pipe
      */
     List<Protocol> pipes();
 
+    /**
+     * Returns the list of protocols this pipeline contains in reversed order.
+     *
+     * @return immutable list of protocols in reversed direction
+     */
+    List<Protocol> reversedPipes();
+
     /**
      * Returns whether this pipe has protocols that are not base protocols, as given by {@link Protocol#isBaseProtocol()}.
      *

api/src/main/java/com/viaversion/viaversion/api/protocol/SimpleProtocol.java

@@ -27,7 +27,7 @@ import com.viaversion.viaversion.api.protocol.packet.Direction;
 import com.viaversion.viaversion.api.protocol.packet.ServerboundPacketType;
 
 /**
- * Dummy protocol class when there is no need of any of the
+ * Dummy protocol class when there is no need of the
  * existing packet type enums or automated channel mappings.
  *
  * @see Protocol

api/src/main/java/com/viaversion/viaversion/api/protocol/packet/ClientboundPacketType.java

@@ -23,8 +23,7 @@
 package com.viaversion.viaversion.api.protocol.packet;
 
 /**
- * Interface to be implemented by server outgoing packet type enums,
- * representing PLAY state packets, ordered by their packet id.
+ * Interface to be implemented by server outgoing packet types.
  */
 public interface ClientboundPacketType extends PacketType {
 

api/src/main/java/com/viaversion/viaversion/api/protocol/packet/PacketTracker.java

@@ -81,11 +81,9 @@ public class PacketTracker {
         if (connection.isClientSide()) return false; // Don't apply PPS limiting for client-side
         ViaVersionConfig conf = Via.getConfig();
         // Max PPS Checker
-        if (conf.getMaxPPS() > 0) {
-            if (packetsPerSecond >= conf.getMaxPPS()) {
-                connection.disconnect(conf.getMaxPPSKickMessage().replace("%pps", Long.toString(packetsPerSecond)));
-                return true; // don't send current packet
-            }
+        if (conf.getMaxPPS() > 0 && packetsPerSecond >= conf.getMaxPPS()) {
+            connection.disconnect(conf.getMaxPPSKickMessage().replace("%pps", Long.toString(packetsPerSecond)));
+            return true; // don't send current packet
         }
 
         // Tracking PPS Checker

api/src/main/java/com/viaversion/viaversion/api/protocol/packet/ServerboundPacketType.java

@@ -23,8 +23,7 @@
 package com.viaversion.viaversion.api.protocol.packet;
 
 /**
- * Interface to be implemented by server incoming packet type enums,
- * representing PLAY state packets, ordered by their packet id.
+ * Interface to be implemented by server incoming packet types.
  */
 public interface ServerboundPacketType extends PacketType {
 

api/src/main/java/com/viaversion/viaversion/api/protocol/packet/State.java

@@ -27,5 +27,6 @@ public enum State {
     HANDSHAKE,
     STATUS,
     LOGIN,
+    CONFIGURATION,
     PLAY
 }

api/src/main/java/com/viaversion/viaversion/api/protocol/packet/provider/PacketTypeArrayMap.java

@@ -25,9 +25,11 @@ package com.viaversion.viaversion.api.protocol.packet.provider;
 import java.util.Arrays;
 import java.util.Collection;
 import java.util.Map;
+
+import com.viaversion.viaversion.api.protocol.packet.PacketType;
 import org.checkerframework.checker.nullness.qual.Nullable;
 
-final class PacketTypeArrayMap<P> implements PacketTypeMap<P> {
+final class PacketTypeArrayMap<P extends PacketType> implements PacketTypeMap<P> {
     private final Map<String, P> packetsByName;
     private final P[] packets;
 

api/src/main/java/com/viaversion/viaversion/api/protocol/packet/provider/PacketTypeMap.java

@@ -29,7 +29,7 @@ import java.util.HashMap;
 import java.util.Map;
 import org.checkerframework.checker.nullness.qual.Nullable;
 
-public interface PacketTypeMap<P> {
+public interface PacketTypeMap<P extends PacketType> {
 
     /**
      * Returns the packet type by the given name.
@@ -67,11 +67,11 @@ public interface PacketTypeMap<P> {
         return of(byName, types);
     }
 
-    static <T> PacketTypeMap<T> of(final Map<String, T> packetsByName, final Int2ObjectMap<T> packetsById) {
+    static <T extends PacketType> PacketTypeMap<T> of(final Map<String, T> packetsByName, final Int2ObjectMap<T> packetsById) {
         return new PacketTypeMapMap<>(packetsByName, packetsById);
     }
 
-    static <T> PacketTypeMap<T> of(final Map<String, T> packetsByName, final T[] packets) {
+    static <T extends PacketType> PacketTypeMap<T> of(final Map<String, T> packetsByName, final T[] packets) {
         return new PacketTypeArrayMap<>(packetsByName, packets);
     }
 }

api/src/main/java/com/viaversion/viaversion/api/protocol/packet/provider/PacketTypeMapMap.java

@@ -22,12 +22,13 @@
  */
 package com.viaversion.viaversion.api.protocol.packet.provider;
 
+import com.viaversion.viaversion.api.protocol.packet.PacketType;
 import it.unimi.dsi.fastutil.ints.Int2ObjectMap;
 import java.util.Collection;
 import java.util.Map;
 import org.checkerframework.checker.nullness.qual.Nullable;
 
-final class PacketTypeMapMap<P> implements PacketTypeMap<P> {
+final class PacketTypeMapMap<P extends PacketType> implements PacketTypeMap<P> {
     private final Map<String, P> packetsByName;
     private final Int2ObjectMap<P> packetsById;
 

api/src/main/java/com/viaversion/viaversion/api/protocol/version/ProtocolVersion.java

@@ -83,6 +83,9 @@ public class ProtocolVersion {
     public static final ProtocolVersion v1_19_1 = register(760, "1.19.1/2", new VersionRange("1.19", 1, 2));
     public static final ProtocolVersion v1_19_3 = register(761, "1.19.3");
     public static final ProtocolVersion v1_19_4 = register(762, "1.19.4");
+    public static final ProtocolVersion v1_20 = register(763, "1.20/1.20.1", new VersionRange("1.20", 0, 1));
+    public static final ProtocolVersion v1_20_2 = register(764, "1.20.2");
+    public static final ProtocolVersion v1_20_3 = register(765, "1.20.3");
     public static final ProtocolVersion unknown = register(-1, "UNKNOWN");
 
     public static ProtocolVersion register(int version, String name) {
@@ -104,7 +107,7 @@ public class ProtocolVersion {
      * @param snapshotVersion snapshot protocol version, or -1 if not a snapshot
      * @param name            version name
      * @param versionRange    range of versions that are supported by this protocol version, null if not a range
-     * @return registered {@link ProtocolVersion}
+     * @return registered ProtocolVersion
      */
     public static ProtocolVersion register(int version, int snapshotVersion, String name, @Nullable VersionRange versionRange) {
         ProtocolVersion protocol = new ProtocolVersion(version, snapshotVersion, name, versionRange);
@@ -127,11 +130,11 @@ public class ProtocolVersion {
     }
 
     /**
-     * Returns a {@link ProtocolVersion} instance, even if this protocol version
+     * Returns a ProtocolVersion instance, even if this protocol version
      * has not been registered. See {@link #isRegistered(int)} berorehand or {@link #isKnown()}.
      *
      * @param version protocol version
-     * @return registered or unknown {@link ProtocolVersion}
+     * @return registered or unknown ProtocolVersion
      */
     public static @NonNull ProtocolVersion getProtocol(int version) {
         ProtocolVersion protocolVersion = VERSIONS.get(version);
@@ -182,10 +185,8 @@ public class ProtocolVersion {
                 if (majorVersion.equals(protocol) || (protocol.startsWith(name.substring(0, name.length() - 1)))) {
                     return version;
                 }
-            } else if (version.isRange()) {
-                if (version.getIncludedVersions().contains(protocol)) {
-                    return version;
-                }
+            } else if (version.isRange() && version.getIncludedVersions().contains(protocol)) {
+                return version;
             }
         }
         return null;
@@ -245,7 +246,7 @@ public class ProtocolVersion {
      * Returns the snapshot protocol version without the snapshot indicator bit if this is a snapshot protocol version.
      *
      * @return snapshot protocol version without the snapshot indicator bit
-     * @throws IllegalArgumentException if the version if not a snapshot version
+     * @throws IllegalArgumentException if the version is not a snapshot version
      * @see #isSnapshot()
      */
     public int getSnapshotVersion() {
@@ -257,7 +258,7 @@ public class ProtocolVersion {
      * Returns the snapshot protocol version with the snapshot indicator bit if this is a snapshot protocol version.
      *
      * @return snapshot protocol version with the snapshot indicator bit
-     * @throws IllegalArgumentException if the version if not a snapshot version
+     * @throws IllegalArgumentException if the version is not a snapshot version
      * @see #isSnapshot()
      */
     public int getFullSnapshotVersion() {

api/src/main/java/com/viaversion/viaversion/api/protocol/version/ServerProtocolVersion.java

@@ -52,7 +52,7 @@ public interface ServerProtocolVersion {
 
     /**
      * Returns true if the actual protocol version has not yet been identified.
-     * In that case, all methods above will returns -1.
+     * In that case, all methods above will return -1.
      *
      * @return true if set, false if unknown (yet)
      */

api/src/main/java/com/viaversion/viaversion/api/protocol/version/VersionProvider.java

@@ -25,6 +25,7 @@ package com.viaversion.viaversion.api.protocol.version;
 import com.viaversion.viaversion.api.connection.UserConnection;
 import com.viaversion.viaversion.api.platform.providers.Provider;
 
+@FunctionalInterface
 public interface VersionProvider extends Provider {
 
     /**

api/src/main/java/com/viaversion/viaversion/api/rewriter/EntityRewriter.java

@@ -51,7 +51,7 @@ public interface EntityRewriter<T extends Protocol> extends Rewriter<T> {
     }
 
     /**
-     * Returns the mapped entitiy (or the same if it has not changed).
+     * Returns the mapped entity (or the same if it has not changed).
      *
      * @param id unmapped entity id
      * @return mapped entity id

api/src/main/java/com/viaversion/viaversion/api/rewriter/RewriterBase.java

@@ -27,7 +27,7 @@ import com.viaversion.viaversion.api.protocol.Protocol;
 public abstract class RewriterBase<T extends Protocol> implements Rewriter<T> {
     protected final T protocol;
 
-    protected RewriterBase(T protocol) {
+    protected RewriterBase(final T protocol) {
         this.protocol = protocol;
     }
 

api/src/main/java/com/viaversion/viaversion/api/type/PartialType.java

@@ -24,6 +24,7 @@ package com.viaversion.viaversion.api.type;
 
 import io.netty.buffer.ByteBuf;
 
+@Deprecated
 public abstract class PartialType<T, X> extends Type<T> {
     private final X param;
 

api/src/main/java/com/viaversion/viaversion/api/type/Type.java

@@ -22,8 +22,8 @@
  */
 package com.viaversion.viaversion.api.type;
 
-
 import com.github.steveice10.opennbt.tag.builtin.CompoundTag;
+import com.github.steveice10.opennbt.tag.builtin.Tag;
 import com.google.gson.JsonElement;
 import com.viaversion.viaversion.api.minecraft.BlockChangeRecord;
 import com.viaversion.viaversion.api.minecraft.EulerAngle;
@@ -35,8 +35,11 @@ import com.viaversion.viaversion.api.minecraft.Quaternion;
 import com.viaversion.viaversion.api.minecraft.Vector;
 import com.viaversion.viaversion.api.minecraft.Vector3f;
 import com.viaversion.viaversion.api.minecraft.VillagerData;
+import com.viaversion.viaversion.api.minecraft.blockentity.BlockEntity;
 import com.viaversion.viaversion.api.minecraft.item.Item;
+import com.viaversion.viaversion.api.minecraft.metadata.ChunkPosition;
 import com.viaversion.viaversion.api.type.types.ArrayType;
+import com.viaversion.viaversion.api.type.types.BitSetType;
 import com.viaversion.viaversion.api.type.types.BooleanType;
 import com.viaversion.viaversion.api.type.types.ByteArrayType;
 import com.viaversion.viaversion.api.type.types.ByteType;
@@ -50,34 +53,38 @@ import com.viaversion.viaversion.api.type.types.RemainingBytesType;
 import com.viaversion.viaversion.api.type.types.ShortByteArrayType;
 import com.viaversion.viaversion.api.type.types.ShortType;
 import com.viaversion.viaversion.api.type.types.StringType;
-import com.viaversion.viaversion.api.type.types.UUIDIntArrayType;
 import com.viaversion.viaversion.api.type.types.UUIDType;
 import com.viaversion.viaversion.api.type.types.UnsignedByteType;
 import com.viaversion.viaversion.api.type.types.UnsignedShortType;
 import com.viaversion.viaversion.api.type.types.VarIntArrayType;
 import com.viaversion.viaversion.api.type.types.VarIntType;
 import com.viaversion.viaversion.api.type.types.VarLongType;
-import com.viaversion.viaversion.api.type.types.VoidType;
-import com.viaversion.viaversion.api.type.types.minecraft.BlockChangeRecordType;
-import com.viaversion.viaversion.api.type.types.minecraft.EulerAngleType;
-import com.viaversion.viaversion.api.type.types.minecraft.FlatItemArrayType;
-import com.viaversion.viaversion.api.type.types.minecraft.FlatItemType;
-import com.viaversion.viaversion.api.type.types.minecraft.FlatVarIntItemArrayType;
-import com.viaversion.viaversion.api.type.types.minecraft.FlatVarIntItemType;
-import com.viaversion.viaversion.api.type.types.minecraft.GlobalPositionType;
-import com.viaversion.viaversion.api.type.types.minecraft.ItemArrayType;
-import com.viaversion.viaversion.api.type.types.minecraft.ItemType;
-import com.viaversion.viaversion.api.type.types.minecraft.NBTType;
-import com.viaversion.viaversion.api.type.types.minecraft.OptionalVarIntType;
-import com.viaversion.viaversion.api.type.types.minecraft.PlayerMessageSignatureType;
-import com.viaversion.viaversion.api.type.types.minecraft.Position1_14Type;
-import com.viaversion.viaversion.api.type.types.minecraft.PositionType;
-import com.viaversion.viaversion.api.type.types.minecraft.ProfileKeyType;
-import com.viaversion.viaversion.api.type.types.minecraft.QuaternionType;
-import com.viaversion.viaversion.api.type.types.minecraft.VarLongBlockChangeRecordType;
-import com.viaversion.viaversion.api.type.types.minecraft.Vector3fType;
-import com.viaversion.viaversion.api.type.types.minecraft.VectorType;
-import com.viaversion.viaversion.api.type.types.minecraft.VillagerDataType;
+import com.viaversion.viaversion.api.type.types.block.BlockChangeRecordType;
+import com.viaversion.viaversion.api.type.types.block.BlockEntityType1_18;
+import com.viaversion.viaversion.api.type.types.block.BlockEntityType1_20_2;
+import com.viaversion.viaversion.api.type.types.math.ChunkPositionType;
+import com.viaversion.viaversion.api.type.types.misc.CompoundTagType;
+import com.viaversion.viaversion.api.type.types.math.EulerAngleType;
+import com.viaversion.viaversion.api.type.types.item.ItemShortArrayType1_13;
+import com.viaversion.viaversion.api.type.types.item.ItemType1_13;
+import com.viaversion.viaversion.api.type.types.item.ItemShortArrayType1_13_2;
+import com.viaversion.viaversion.api.type.types.item.ItemType1_13_2;
+import com.viaversion.viaversion.api.type.types.math.GlobalPositionType;
+import com.viaversion.viaversion.api.type.types.item.ItemType1_20_2;
+import com.viaversion.viaversion.api.type.types.item.ItemShortArrayType1_8;
+import com.viaversion.viaversion.api.type.types.item.ItemType1_8;
+import com.viaversion.viaversion.api.type.types.misc.NamedCompoundTagType;
+import com.viaversion.viaversion.api.type.types.OptionalVarIntType;
+import com.viaversion.viaversion.api.type.types.misc.PlayerMessageSignatureType;
+import com.viaversion.viaversion.api.type.types.math.PositionType1_14;
+import com.viaversion.viaversion.api.type.types.math.PositionType1_8;
+import com.viaversion.viaversion.api.type.types.misc.ProfileKeyType;
+import com.viaversion.viaversion.api.type.types.math.QuaternionType;
+import com.viaversion.viaversion.api.type.types.misc.TagType;
+import com.viaversion.viaversion.api.type.types.block.VarLongBlockChangeRecordType;
+import com.viaversion.viaversion.api.type.types.math.Vector3fType;
+import com.viaversion.viaversion.api.type.types.math.VectorType;
+import com.viaversion.viaversion.api.type.types.misc.VillagerDataType;
 import java.util.UUID;
 
 /**
@@ -118,67 +125,47 @@ public abstract class Type<T> implements ByteBufReader<T>, ByteBufWriter<T> {
     public static final Type<UUID> UUID = new UUIDType();
     public static final Type<UUID> OPTIONAL_UUID = new UUIDType.OptionalUUIDType();
     public static final Type<UUID[]> UUID_ARRAY = new ArrayType<>(Type.UUID);
-    @Deprecated/*(forRemoval = true)*/
-    public static final Type<UUID> UUID_INT_ARRAY = new UUIDIntArrayType();
 
     public static final VarIntType VAR_INT = new VarIntType();
     public static final OptionalVarIntType OPTIONAL_VAR_INT = new OptionalVarIntType();
     public static final Type<int[]> VAR_INT_ARRAY_PRIMITIVE = new VarIntArrayType();
     public static final VarLongType VAR_LONG = new VarLongType();
 
-    /* Boxed number array types */
-    @Deprecated
-    public static final Type<Byte[]> BYTE_ARRAY = new ArrayType<>(Type.BYTE);
-    @Deprecated
-    public static final Type<Short[]> UNSIGNED_BYTE_ARRAY = new ArrayType<>(Type.UNSIGNED_BYTE);
-    @Deprecated
-    public static final Type<Boolean[]> BOOLEAN_ARRAY = new ArrayType<>(Type.BOOLEAN);
-    @Deprecated
-    public static final Type<Integer[]> INT_ARRAY = new ArrayType<>(Type.INT);
-    @Deprecated
-    public static final Type<Short[]> SHORT_ARRAY = new ArrayType<>(Type.SHORT);
-    @Deprecated
-    public static final Type<Integer[]> UNSIGNED_SHORT_ARRAY = new ArrayType<>(Type.UNSIGNED_SHORT);
-    @Deprecated
-    public static final Type<Double[]> DOUBLE_ARRAY = new ArrayType<>(Type.DOUBLE);
-    @Deprecated
-    public static final Type<Long[]> LONG_ARRAY = new ArrayType<>(Type.LONG);
-    @Deprecated
-    public static final Type<Float[]> FLOAT_ARRAY = new ArrayType<>(Type.FLOAT);
-    @Deprecated
-    public static final Type<Integer[]> VAR_INT_ARRAY = new ArrayType<>(Type.VAR_INT);
-    @Deprecated
-    public static final Type<Long[]> VAR_LONG_ARRAY = new ArrayType<>(Type.VAR_LONG);
-
-    /* Special Types */
-    public static final VoidType NOTHING = new VoidType(); // This is purely used for remapping.
-
     /* MC Types */
-    public static final Type<Position> POSITION = new PositionType();
-    public static final Type<Position> OPTIONAL_POSITION = new PositionType.OptionalPositionType();
-    public static final Type<Position> POSITION1_14 = new Position1_14Type();
-    public static final Type<Position> OPTIONAL_POSITION_1_14 = new Position1_14Type.OptionalPosition1_14Type();
+    public static final Type<Position> POSITION1_8 = new PositionType1_8();
+    public static final Type<Position> OPTIONAL_POSITION1_8 = new PositionType1_8.OptionalPositionType();
+    public static final Type<Position> POSITION1_14 = new PositionType1_14();
+    public static final Type<Position> OPTIONAL_POSITION_1_14 = new PositionType1_14.OptionalPosition1_14Type();
     public static final Type<EulerAngle> ROTATION = new EulerAngleType();
     public static final Type<Vector> VECTOR = new VectorType();
     public static final Type<Vector3f> VECTOR3F = new Vector3fType();
     public static final Type<Quaternion> QUATERNION = new QuaternionType();
-    public static final Type<CompoundTag> NBT = new NBTType();
-    public static final Type<CompoundTag[]> NBT_ARRAY = new ArrayType<>(Type.NBT);
+
+    public static final Type<CompoundTag> NAMED_COMPOUND_TAG = new NamedCompoundTagType();
+    public static final Type<CompoundTag[]> NAMED_COMPOUND_TAG_ARRAY = new ArrayType<>(Type.NAMED_COMPOUND_TAG);
+    public static final Type<CompoundTag> COMPOUND_TAG = new CompoundTagType();
+    public static final Type<CompoundTag> OPTIONAL_COMPOUND_TAG = new CompoundTagType.OptionalCompoundTagType();
+    public static final Type<Tag> TAG = new TagType();
+    public static final Type<Tag> OPTIONAL_TAG = new TagType.OptionalTagType();
+    @Deprecated/*(forRemoval=true)*/
+    public static final Type<CompoundTag> NBT = NAMED_COMPOUND_TAG;
+    @Deprecated/*(forRemoval=true)*/
+    public static final Type<CompoundTag[]> NBT_ARRAY = NAMED_COMPOUND_TAG_ARRAY;
 
     public static final Type<GlobalPosition> GLOBAL_POSITION = new GlobalPositionType();
     public static final Type<GlobalPosition> OPTIONAL_GLOBAL_POSITION = new GlobalPositionType.OptionalGlobalPositionType();
+    public static final Type<ChunkPosition> CHUNK_POSITION = new ChunkPositionType();
+
+    public static final Type<BlockEntity> BLOCK_ENTITY1_18 = new BlockEntityType1_18();
+    public static final Type<BlockEntity> BLOCK_ENTITY1_20_2 = new BlockEntityType1_20_2();
 
     public static final Type<BlockChangeRecord> BLOCK_CHANGE_RECORD = new BlockChangeRecordType();
     public static final Type<BlockChangeRecord[]> BLOCK_CHANGE_RECORD_ARRAY = new ArrayType<>(Type.BLOCK_CHANGE_RECORD);
-
     public static final Type<BlockChangeRecord> VAR_LONG_BLOCK_CHANGE_RECORD = new VarLongBlockChangeRecordType();
     public static final Type<BlockChangeRecord[]> VAR_LONG_BLOCK_CHANGE_RECORD_ARRAY = new ArrayType<>(Type.VAR_LONG_BLOCK_CHANGE_RECORD);
 
     public static final Type<VillagerData> VILLAGER_DATA = new VillagerDataType();
 
-    public static final Type<Item> ITEM = new ItemType();
-    public static final Type<Item[]> ITEM_ARRAY = new ItemArrayType();
-
     public static final Type<ProfileKey> PROFILE_KEY = new ProfileKeyType();
     public static final Type<ProfileKey> OPTIONAL_PROFILE_KEY = new ProfileKeyType.OptionalProfileKeyType();
 
@@ -186,20 +173,43 @@ public abstract class Type<T> implements ByteBufReader<T>, ByteBufWriter<T> {
     public static final Type<PlayerMessageSignature> OPTIONAL_PLAYER_MESSAGE_SIGNATURE = new PlayerMessageSignatureType.OptionalPlayerMessageSignatureType();
     public static final Type<PlayerMessageSignature[]> PLAYER_MESSAGE_SIGNATURE_ARRAY = new ArrayType<>(PLAYER_MESSAGE_SIGNATURE);
 
-    /* 1.13 Flat Item (no data) */
-    public static final Type<Item> FLAT_ITEM = new FlatItemType();
-    public static final Type<Item> FLAT_VAR_INT_ITEM = new FlatVarIntItemType();
-    public static final Type<Item[]> FLAT_ITEM_ARRAY = new FlatItemArrayType();
-    public static final Type<Item[]> FLAT_VAR_INT_ITEM_ARRAY = new FlatVarIntItemArrayType();
-    public static final Type<Item[]> FLAT_ITEM_ARRAY_VAR_INT = new ArrayType<>(FLAT_ITEM);
-    public static final Type<Item[]> FLAT_VAR_INT_ITEM_ARRAY_VAR_INT = new ArrayType<>(FLAT_VAR_INT_ITEM);
+    public static final BitSetType PROFILE_ACTIONS_ENUM = new BitSetType(6);
+    public static final ByteArrayType SIGNATURE_BYTES = new ByteArrayType(256);
+    public static final ByteArrayType.OptionalByteArrayType OPTIONAL_SIGNATURE_BYTES = new ByteArrayType.OptionalByteArrayType(256);
+
+    public static final Type<Item> ITEM1_8 = new ItemType1_8();
+    public static final Type<Item> ITEM1_13 = new ItemType1_13();
+    public static final Type<Item> ITEM1_13_2 = new ItemType1_13_2();
+    public static final Type<Item> ITEM1_20_2 = new ItemType1_20_2();
+    public static final Type<Item[]> ITEM1_8_SHORT_ARRAY = new ItemShortArrayType1_8();
+    public static final Type<Item[]> ITEM1_13_SHORT_ARRAY = new ItemShortArrayType1_13();
+    public static final Type<Item[]> ITEM1_13_2_SHORT_ARRAY = new ItemShortArrayType1_13_2();
+    public static final Type<Item[]> ITEM1_13_ARRAY = new ArrayType<>(ITEM1_13);
+    public static final Type<Item[]> ITEM1_13_2_ARRAY = new ArrayType<>(ITEM1_13_2);
+    public static final Type<Item[]> ITEM1_20_2_ARRAY = new ArrayType<>(ITEM1_20_2);
+    @Deprecated/*(forRemoval=true)*/
+    public static final Type<Item> ITEM = ITEM1_8;
+    @Deprecated/*(forRemoval=true)*/
+    public static final Type<Item> FLAT_ITEM = ITEM1_13;
+    @Deprecated/*(forRemoval=true)*/
+    public static final Type<Item> FLAT_VAR_INT_ITEM = ITEM1_13_2;
+    @Deprecated/*(forRemoval=true)*/
+    public static final Type<Item[]> ITEM_ARRAY = ITEM1_8_SHORT_ARRAY;
+    @Deprecated/*(forRemoval=true)*/
+    public static final Type<Item[]> FLAT_ITEM_ARRAY = ITEM1_13_SHORT_ARRAY;
+    @Deprecated/*(forRemoval=true)*/
+    public static final Type<Item[]> FLAT_VAR_INT_ITEM_ARRAY = ITEM1_13_2_SHORT_ARRAY;
+    @Deprecated/*(forRemoval=true)*/
+    public static final Type<Item[]> FLAT_ITEM_ARRAY_VAR_INT = ITEM1_13_ARRAY;
+    @Deprecated/*(forRemoval=true)*/
+    public static final Type<Item[]> FLAT_VAR_INT_ITEM_ARRAY_VAR_INT = ITEM1_13_2_ARRAY;
 
     /* Actual Class */
     private final Class<? super T> outputClass;
     private final String typeName;
 
     protected Type(Class<? super T> outputClass) {
-        this(outputClass.getSimpleName(), outputClass);
+        this(null, outputClass);
     }
 
     protected Type(String typeName, Class<? super T> outputClass) {
@@ -222,7 +232,7 @@ public abstract class Type<T> implements ByteBufReader<T>, ByteBufWriter<T> {
      * @return type name
      */
     public String getTypeName() {
-        return typeName;
+        return typeName != null ? typeName : this.getClass().getSimpleName();
     }
 
     /**
@@ -237,6 +247,6 @@ public abstract class Type<T> implements ByteBufReader<T>, ByteBufWriter<T> {
 
     @Override
     public String toString() {
-        return "Type|" + typeName;
+        return getTypeName();
     }
 }