feat: preliminary 1.20.2 support

pom.xml

@@ -16,6 +16,10 @@
     </properties>
 
     <repositories>
+        <repository>
+            <id>dmulloy2-repo</id>
+            <url>https://repo.dmulloy2.net/repository/public/</url>
+        </repository>
         <repository>
             <id>xenondevs</id>
             <url>https://repo.xenondevs.xyz/releases</url>
@@ -32,10 +36,6 @@
             <id>placeholderapi</id>
             <url>https://repo.extendedclip.com/content/repositories/placeholderapi/</url>
         </repository>
-        <repository>
-            <id>dmulloy2-repo</id>
-            <url>https://repo.dmulloy2.net/repository/public/</url>
-        </repository>
     </repositories>
 
     <dependencies>
@@ -57,7 +57,7 @@
         <dependency>
             <groupId>com.comphenix.protocol</groupId>
             <artifactId>ProtocolLib</artifactId>
-            <version>5.0.1-SNAPSHOT</version>
+            <version>5.1.1-SNAPSHOT</version>
             <scope>provided</scope>
         </dependency>
         <dependency>

src/main/java/xyz/atnrch/nicko/appearance/AppearanceManager.java

@@ -70,7 +70,7 @@ public class AppearanceManager {
 
     public void updateOthers() {
         final WrapperPlayServerEntityDestroy destroy = new WrapperPlayServerEntityDestroy();
-        final WrapperPlayServerNamedEntitySpawn spawn = new WrapperPlayServerNamedEntitySpawn();
+        final WrapperPlayServerSpawnEntity spawn = new WrapperPlayServerSpawnEntity();
         destroy.setEntityIds(IntList.of(player.getEntityId()));
         spawn.setEntityId(player.getEntityId());
         spawn.setLocation(player.getLocation());

src/main/java/xyz/atnrch/nicko/wrapper/WrapperPlayServerRespawn.java

@@ -18,28 +18,45 @@ import org.bukkit.World;
  * for the PacketPlayServerRespawn.
  *
  * @author ineanto, based on work from dmulloy2 and Kristian S. Strangeland
+ * <p>
+ * <p>
+ * Packet changes history (not accurate)
+ * <p>
+ * In 1.20.2, all the fields were replaced with a
+ * single "CommonPlayerSpawnInfo" record object.
+ * <p>
+ * The dimension field was changed numerous times:
+ * - 1.8 through 1.17 (?) required an integer,
+ * - 1.18 need an instance of a Holder of a ResourceKey,
+ * - 1.19 and after dropped this requirement.
+ * N.b.: this field is a nightmare please mojang stop refactoring
+ * your code to change things that were working perfectly fine before
+ * <p>
+ * The Seed field was added in 1.15.
+ * The Difficulty field was removed in 1.14.
  */
 public class WrapperPlayServerRespawn extends AbstractPacket {
     public static final PacketType TYPE = PacketType.Play.Server.RESPAWN;
 
+    private InternalStructure commonPlayerSpawnInfoStructure;
+
     public WrapperPlayServerRespawn() {
         super(new PacketContainer(TYPE), TYPE);
         handle.getModifier().writeDefaults();
+        if (MinecraftVersion.CONFIG_PHASE_PROTOCOL_UPDATE.atOrAbove()) {
+            commonPlayerSpawnInfoStructure = handle.getStructures().read(0);
+        }
     }
 
-    //.............
-    // Dimension/World Field
-    // The dimension field has changed numerous times:
-    // - 1.8 through 1.17 (?) need an integer,
-    // - 1.18 need a Holder of a World ResourceKey,
-    // - 1.19 and beyond don't require a Holder.
-    //
-    // n.b.: this field is a nightmare please mojang stop refactoring
-    // your code to change things that were working perfectly fine before
-    //.............
-
     public void setDimension(World value) {
-        if (MinecraftVersion.WILD_UPDATE.atOrAbove()) {
+        if (MinecraftVersion.CONFIG_PHASE_PROTOCOL_UPDATE.atOrAbove()) {
+            // 1.20.2
+            final InternalStructure dimensionType = commonPlayerSpawnInfoStructure.getStructures().read(0);
+            dimensionType.getMinecraftKeys().write(0, new MinecraftKey("minecraft", "dimension_type"));
+            dimensionType.getMinecraftKeys().write(1, new MinecraftKey("minecraft", "overworld"));
+            commonPlayerSpawnInfoStructure.getStructures().write(0, dimensionType);
+            commonPlayerSpawnInfoStructure.getWorldKeys().write(0, value);
+        } else if (MinecraftVersion.WILD_UPDATE.atOrAbove()) {
             // 1.19 to 1.20.1
             // Thank you lukalt!
             final InternalStructure dimensionType = handle.getStructures().read(0);
@@ -59,50 +76,38 @@ public class WrapperPlayServerRespawn extends AbstractPacket {
         }
     }
 
-    //.............
-    // GameMode Field
-    //.............
-
     public void setGameMode(GameMode value) {
+        if (MinecraftVersion.CONFIG_PHASE_PROTOCOL_UPDATE.atOrAbove()) {
+            commonPlayerSpawnInfoStructure.getGameModes().write(0, EnumWrappers.NativeGameMode.fromBukkit(value));
+            return;
+        }
+
         handle.getGameModes().write(0, EnumWrappers.NativeGameMode.fromBukkit(value));
     }
 
-    //.............
-    // Previous GameMode Field
-    //.............
-
     public void setPreviousGameMode(GameMode value) {
+        if (MinecraftVersion.CONFIG_PHASE_PROTOCOL_UPDATE.atOrAbove()) {
+            commonPlayerSpawnInfoStructure.getGameModes().write(1, EnumWrappers.NativeGameMode.fromBukkit(value));
+            return;
+        }
         handle.getGameModes().write(1, EnumWrappers.NativeGameMode.fromBukkit(value));
     }
 
-    //.............
-    // Copy Metadata Field
-    //.............
-
     public void setCopyMetadata(boolean value) {
-        if(MinecraftVersion.FEATURE_PREVIEW_UPDATE.atOrAbove()) {
+        if (MinecraftVersion.CONFIG_PHASE_PROTOCOL_UPDATE.atOrAbove()) return;
+        if (MinecraftVersion.FEATURE_PREVIEW_UPDATE.atOrAbove()) {
             handle.getBytes().write(0, ((byte) (value ? 0x01 : 0x00)));
         } else {
             handle.getBooleans().write(0, value);
         }
     }
 
-    //.............
-    // Seed Field
-    // Added in 1.15.
-    //.............
-
     public void setSeed(long value) {
-        if (MinecraftVersion.BEE_UPDATE.atOrAbove()) {
+        if (MinecraftVersion.BEE_UPDATE.atOrAbove() && !MinecraftVersion.CONFIG_PHASE_PROTOCOL_UPDATE.atOrAbove()) {
             handle.getLongs().write(0, Hashing.sha256().hashLong(value).asLong());
         }
     }
 
-    //.............
-    // Difficulty Field
-    // Removed in 1.14.
-    //.............
-
     public void setDifficulty(Difficulty difficulty) {
         if (difficulty != null && !MinecraftVersion.VILLAGE_UPDATE.atOrAbove()) {
             handle.getDifficulties().write(0, EnumWrappers.Difficulty.valueOf(difficulty.name()));

src/main/java/xyz/atnrch/nicko/wrapper/WrapperPlayServerSpawnEntity.java

@@ -12,16 +12,16 @@ import java.util.UUID;
 /**
  * This packet is sent by the server when a player comes into visible range, not when a player joins.
  */
-public class WrapperPlayServerNamedEntitySpawn extends AbstractPacket {
+public class WrapperPlayServerSpawnEntity extends AbstractPacket {
     /**
      * The packet type that is wrapped by this wrapper.
      */
-    public static final PacketType TYPE = PacketType.Play.Server.NAMED_ENTITY_SPAWN;
+    public static final PacketType TYPE = PacketType.Play.Server.SPAWN_ENTITY;
 
     /**
      * Constructors a new wrapper for the specified packet
      */
-    public WrapperPlayServerNamedEntitySpawn() {
+    public WrapperPlayServerSpawnEntity() {
         super(new PacketContainer(TYPE), TYPE);
         handle.getModifier().writeDefaults();
     }