minecraft:profile item component support

plugin/src/main/java/net/elytrium/limboapi/server/item/SimpleItemComponentManager.java

@@ -35,6 +35,7 @@
 import net.elytrium.limboapi.server.item.type.DyedColorItemComponent;
 import net.elytrium.limboapi.server.item.type.EmptyItemComponent;
 import net.elytrium.limboapi.server.item.type.EnchantmentsItemComponent;
+import net.elytrium.limboapi.server.item.type.GameProfileItemComponent;
 import net.elytrium.limboapi.server.item.type.IntItemComponent;
 import net.elytrium.limboapi.server.item.type.StringItemComponent;
 import net.elytrium.limboapi.server.item.type.StringsItemComponent;
@@ -84,9 +85,15 @@ public class SimpleItemComponentManager {
   private final Map<String, Function<ProtocolVersion, WriteableItemComponent>> factory = new HashMap<>();
 
   public SimpleItemComponentManager() {
-    // TODO: implement missing components
+    // TODO: implement missing components:
+    //  trim, intangible_projectile, food, suspicious_stew_effects, lock, tool,
+    //  can_break, writable_book_content, potion_contents, bees, banner_patterns,
+    //  pot_decorations, map_decorations, debug_stick_state, can_place_on, lodestone_tracker,
+    //  written_book_content, container_loot, container, block_state, attribute_modifiers,
+    //  bundle_contents, firework_explosion, charged_projectiles, fireworks
     this.register("minecraft:lore", version -> new ComponentsItemComponent("minecraft:lore"));
     this.register("minecraft:dyed_color", version -> new DyedColorItemComponent("minecraft:dyed_color"));
+    this.register("minecraft:profile", version -> new GameProfileItemComponent("minecraft:profile"));
 
     for (String type : new String[] { "minecraft:max_stack_size", "minecraft:max_damage",
                                       "minecraft:damage", "minecraft:rarity", "minecraft:custom_model_data",
@@ -130,10 +137,6 @@ public SimpleItemComponentManager() {
     }
   }
 
-  public void registerVarInt(String name) {
-    this.register(name, version -> new VarIntItemComponent(name));
-  }
-
   public <T> void register(String name, Function<ProtocolVersion, WriteableItemComponent> factory) {
     this.factory.put(name, factory);
   }

plugin/src/main/java/net/elytrium/limboapi/server/item/type/GameProfileItemComponent.java

@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2021 - 2024 Elytrium
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package net.elytrium.limboapi.server.item.type;
+
+import com.velocitypowered.api.network.ProtocolVersion;
+import com.velocitypowered.api.util.GameProfile;
+import com.velocitypowered.proxy.protocol.ProtocolUtils;
+import io.netty.buffer.ByteBuf;
+import java.util.UUID;
+
+public class GameProfileItemComponent extends WriteableItemComponent<GameProfile> {
+
+  private static final UUID ZERO = new UUID(0, 0);
+
+  public GameProfileItemComponent(String name) {
+    super(name);
+  }
+
+  @Override
+  public void write(ProtocolVersion version, ByteBuf buffer) {
+    buffer.writeBoolean(!this.getValue().getName().isEmpty());
+    if (!this.getValue().getName().isEmpty()) {
+      ProtocolUtils.writeString(buffer, this.getValue().getName());
+    }
+
+    buffer.writeBoolean(!this.getValue().getId().equals(ZERO));
+    if (!this.getValue().getId().equals(ZERO)) {
+      ProtocolUtils.writeUuid(buffer, this.getValue().getId());
+    }
+
+    ProtocolUtils.writeProperties(buffer, this.getValue().getProperties());
+  }
+}