Fix llama carpet decoration (#2125)

connector/src/main/java/org/geysermc/connector/entity/living/animal/horse/LlamaEntity.java

@@ -32,7 +32,7 @@ import com.nukkitx.protocol.bedrock.data.inventory.ItemData;
 import com.nukkitx.protocol.bedrock.packet.MobArmorEquipmentPacket;
 import org.geysermc.connector.entity.type.EntityType;
 import org.geysermc.connector.network.session.GeyserSession;
-import org.geysermc.connector.network.translators.world.block.BlockTranslator;
+import org.geysermc.connector.network.translators.item.ItemRegistry;
 
 public class LlamaEntity extends ChestedHorseEntity {
 
@@ -52,16 +52,13 @@ public class LlamaEntity extends ChestedHorseEntity {
         if (entityMetadata.getId() == 20) {
             // Bedrock treats llama decoration as armor
             MobArmorEquipmentPacket equipmentPacket = new MobArmorEquipmentPacket();
-            equipmentPacket.setRuntimeEntityId(getGeyserId());
+            equipmentPacket.setRuntimeEntityId(geyserId);
             // -1 means no armor
-            if ((int) entityMetadata.getValue() != -1) {
+            int carpetIndex = (int) entityMetadata.getValue();
-                // The damage value is the dye color that Java sends us
+            if (carpetIndex > -1 && carpetIndex <= 15) {
+                // The damage value is the dye color that Java sends us, for pre-1.16.220
                 // The item is always going to be a carpet
-                equipmentPacket.setChestplate(ItemData.builder()
+                equipmentPacket.setChestplate(ItemRegistry.CARPETS.get(carpetIndex));
-                        .id(BlockTranslator.CARPET)
-                        .damage((int) entityMetadata.getValue())
-                        .count(1)
-                        .build());
             } else {
                 equipmentPacket.setChestplate(ItemData.AIR);
             }

connector/src/main/java/org/geysermc/connector/network/translators/item/ItemRegistry.java

@@ -92,6 +92,10 @@ public class ItemRegistry {
      * Bucket item entries (excluding the milk bucket), used in BedrockInventoryTransactionTranslator.java
      */
     public static final IntSet BUCKETS = new IntArraySet();
+    /**
+     * Carpet item data, used in LlamaEntity.java
+     */
+    public static final List<ItemData> CARPETS = new ArrayList<>(16);
     /**
      * Crossbow item entry, used in PillagerEntity.java
      */
@@ -452,6 +456,13 @@ public class ItemRegistry {
                 BOATS.add(entry.getValue().get("bedrock_id").intValue());
             } else if (entry.getKey().contains("bucket") && !entry.getKey().contains("milk")) {
                 BUCKETS.add(entry.getValue().get("bedrock_id").intValue());
+            } else if (entry.getKey().contains("_carpet")) {
+                // This should be the numerical order Java sends as an integer value for llamas
+                CARPETS.add(ItemData.builder()
+                        .id(itemEntry.getBedrockId())
+                        .damage(itemEntry.getBedrockData())
+                        .count(1)
+                        .blockRuntimeId(itemEntry.getBedrockBlockId()).build());
             }
 
             itemNames.add(entry.getKey());

connector/src/main/java/org/geysermc/connector/network/translators/world/block/BlockTranslator.java

@@ -74,9 +74,6 @@ public abstract class BlockTranslator {
     private final Object2IntMap<NbtMap> itemFrames = new Object2IntOpenHashMap<>();
     private final Map<String, NbtMap> flowerPotBlocks = new HashMap<>();
 
-    // Bedrock carpet ID, used in LlamaEntity.java for decoration
-    public static final int CARPET = 171;
-
     public static final Int2DoubleMap JAVA_RUNTIME_ID_TO_HARDNESS = new Int2DoubleOpenHashMap();
     public static final Int2BooleanMap JAVA_RUNTIME_ID_TO_CAN_HARVEST_WITH_HAND = new Int2BooleanOpenHashMap();
     public static final Int2ObjectMap<String> JAVA_RUNTIME_ID_TO_TOOL_TYPE = new Int2ObjectOpenHashMap<>();