Work on farmland variants, not sure if this will work

core/src/main/java/org/geysermc/geyser/entity/EntityDefinitions.java

@@ -80,8 +80,8 @@ import org.geysermc.geyser.entity.type.living.TadpoleEntity;
 import org.geysermc.geyser.entity.type.living.animal.ArmadilloEntity;
 import org.geysermc.geyser.entity.type.living.animal.AxolotlEntity;
 import org.geysermc.geyser.entity.type.living.animal.BeeEntity;
-import org.geysermc.geyser.entity.type.living.animal.ChickenEntity;
-import org.geysermc.geyser.entity.type.living.animal.CowEntity;
+import org.geysermc.geyser.entity.type.living.animal.farm.ChickenEntity;
+import org.geysermc.geyser.entity.type.living.animal.farm.CowEntity;
 import org.geysermc.geyser.entity.type.living.animal.FoxEntity;
 import org.geysermc.geyser.entity.type.living.animal.FrogEntity;
 import org.geysermc.geyser.entity.type.living.animal.GoatEntity;
@@ -89,7 +89,7 @@ import org.geysermc.geyser.entity.type.living.animal.HoglinEntity;
 import org.geysermc.geyser.entity.type.living.animal.MooshroomEntity;
 import org.geysermc.geyser.entity.type.living.animal.OcelotEntity;
 import org.geysermc.geyser.entity.type.living.animal.PandaEntity;
-import org.geysermc.geyser.entity.type.living.animal.PigEntity;
+import org.geysermc.geyser.entity.type.living.animal.farm.PigEntity;
 import org.geysermc.geyser.entity.type.living.animal.PolarBearEntity;
 import org.geysermc.geyser.entity.type.living.animal.PufferFishEntity;
 import org.geysermc.geyser.entity.type.living.animal.RabbitEntity;

core/src/main/java/org/geysermc/geyser/entity/type/living/animal/MooshroomEntity.java

@@ -30,6 +30,7 @@ import org.cloudburstmc.math.vector.Vector3f;
 import org.cloudburstmc.protocol.bedrock.data.entity.EntityDataTypes;
 import org.cloudburstmc.protocol.bedrock.packet.AddEntityPacket;
 import org.geysermc.geyser.entity.EntityDefinition;
+import org.geysermc.geyser.entity.type.living.animal.farm.CowEntity;
 import org.geysermc.geyser.inventory.GeyserItemStack;
 import org.geysermc.geyser.item.Items;
 import org.geysermc.geyser.session.GeyserSession;

core/src/main/java/org/geysermc/geyser/entity/type/living/animal/farm/ChickenEntity.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019-2022 GeyserMC. http://geysermc.org
+ * Copyright (c) 2019-2025 GeyserMC. http://geysermc.org
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -23,21 +23,24 @@
  * @link https://github.com/GeyserMC/Geyser
  */
 
-package org.geysermc.geyser.entity.type.living.animal;
+package org.geysermc.geyser.entity.type.living.animal.farm;
 
 import org.checkerframework.checker.nullness.qual.Nullable;
 import org.cloudburstmc.math.vector.Vector3f;
 import org.cloudburstmc.protocol.bedrock.packet.AddEntityPacket;
 import org.geysermc.geyser.entity.EntityDefinition;
 import org.geysermc.geyser.entity.properties.VanillaEntityProperties;
+import org.geysermc.geyser.entity.type.living.animal.AnimalEntity;
 import org.geysermc.geyser.item.type.Item;
 import org.geysermc.geyser.session.GeyserSession;
+import org.geysermc.geyser.session.cache.registry.JavaRegistries;
+import org.geysermc.geyser.session.cache.registry.JavaRegistryKey;
 import org.geysermc.geyser.session.cache.tags.ItemTag;
 import org.geysermc.geyser.session.cache.tags.Tag;
 
 import java.util.UUID;
 
-public class ChickenEntity extends AnimalEntity {
+public class ChickenEntity extends TemperatureVariantAnimal<ChickenVariant> {
 
     public ChickenEntity(GeyserSession session, int entityId, long geyserId, UUID uuid, EntityDefinition<?> definition, Vector3f position, Vector3f motion, float yaw, float pitch, float headYaw) {
         super(session, entityId, geyserId, uuid, definition, position, motion, yaw, pitch, headYaw);
@@ -54,4 +57,9 @@ public class ChickenEntity extends AnimalEntity {
     protected Tag<Item> getFoodTag() {
         return ItemTag.CHICKEN_FOOD;
     }
+
+    @Override
+    protected JavaRegistryKey<BuiltInVariant> variantRegistry() {
+        return JavaRegistries.CHICKEN_VARIANT;
+    }
 }

core/src/main/java/org/geysermc/geyser/entity/type/living/animal/farm/CowEntity.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019-2022 GeyserMC. http://geysermc.org
+ * Copyright (c) 2019-2025 GeyserMC. http://geysermc.org
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -23,7 +23,7 @@
  * @link https://github.com/GeyserMC/Geyser
  */
 
-package org.geysermc.geyser.entity.type.living.animal;
+package org.geysermc.geyser.entity.type.living.animal.farm;
 
 import org.checkerframework.checker.nullness.qual.NonNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
@@ -33,10 +33,13 @@ import org.cloudburstmc.protocol.bedrock.data.entity.EntityFlag;
 import org.cloudburstmc.protocol.bedrock.packet.AddEntityPacket;
 import org.geysermc.geyser.entity.EntityDefinition;
 import org.geysermc.geyser.entity.properties.VanillaEntityProperties;
+import org.geysermc.geyser.entity.type.living.animal.AnimalEntity;
 import org.geysermc.geyser.inventory.GeyserItemStack;
 import org.geysermc.geyser.item.Items;
 import org.geysermc.geyser.item.type.Item;
 import org.geysermc.geyser.session.GeyserSession;
+import org.geysermc.geyser.session.cache.registry.JavaRegistries;
+import org.geysermc.geyser.session.cache.registry.JavaRegistryKey;
 import org.geysermc.geyser.session.cache.tags.ItemTag;
 import org.geysermc.geyser.session.cache.tags.Tag;
 import org.geysermc.geyser.util.InteractionResult;
@@ -45,7 +48,8 @@ import org.geysermc.mcprotocollib.protocol.data.game.entity.player.Hand;
 
 import java.util.UUID;
 
-public class CowEntity extends AnimalEntity {
+public class CowEntity extends TemperatureVariantAnimal<CowVariant> {
+
     public CowEntity(GeyserSession session, int entityId, long geyserId, UUID uuid, EntityDefinition<?> definition, Vector3f position, Vector3f motion, float yaw, float pitch, float headYaw) {
         super(session, entityId, geyserId, uuid, definition, position, motion, yaw, pitch, headYaw);
     }
@@ -82,4 +86,9 @@ public class CowEntity extends AnimalEntity {
     protected Tag<Item> getFoodTag() {
         return ItemTag.COW_FOOD;
     }
+
+    @Override
+    protected JavaRegistryKey<BuiltInVariant> variantRegistry() {
+        return JavaRegistries.COW_VARIANT;
+    }
 }

core/src/main/java/org/geysermc/geyser/entity/type/living/animal/farm/PigEntity.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019-2022 GeyserMC. http://geysermc.org
+ * Copyright (c) 2019-2025 GeyserMC. http://geysermc.org
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -23,7 +23,7 @@
  * @link https://github.com/GeyserMC/Geyser
  */
 
-package org.geysermc.geyser.entity.type.living.animal;
+package org.geysermc.geyser.entity.type.living.animal.farm;
 
 import org.checkerframework.checker.nullness.qual.NonNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
@@ -35,6 +35,7 @@ import org.cloudburstmc.protocol.bedrock.packet.AddEntityPacket;
 import org.geysermc.geyser.entity.EntityDefinition;
 import org.geysermc.geyser.entity.properties.VanillaEntityProperties;
 import org.geysermc.geyser.entity.type.Tickable;
+import org.geysermc.geyser.entity.type.living.animal.AnimalEntity;
 import org.geysermc.geyser.entity.type.player.PlayerEntity;
 import org.geysermc.geyser.entity.vehicle.BoostableVehicleComponent;
 import org.geysermc.geyser.entity.vehicle.ClientVehicle;
@@ -43,6 +44,8 @@ import org.geysermc.geyser.inventory.GeyserItemStack;
 import org.geysermc.geyser.item.type.Item;
 import org.geysermc.geyser.item.Items;
 import org.geysermc.geyser.session.GeyserSession;
+import org.geysermc.geyser.session.cache.registry.JavaRegistries;
+import org.geysermc.geyser.session.cache.registry.JavaRegistryKey;
 import org.geysermc.geyser.session.cache.tags.ItemTag;
 import org.geysermc.geyser.session.cache.tags.Tag;
 import org.geysermc.geyser.util.EntityUtils;
@@ -57,7 +60,7 @@ import org.geysermc.mcprotocollib.protocol.data.game.entity.player.Hand;
 
 import java.util.UUID;
 
-public class PigEntity extends AnimalEntity implements Tickable, ClientVehicle {
+public class PigEntity extends TemperatureVariantAnimal<PigVariant> implements Tickable, ClientVehicle {
     private final BoostableVehicleComponent<PigEntity> vehicleComponent = new BoostableVehicleComponent<>(this, 1.0f);
 
     public PigEntity(GeyserSession session, int entityId, long geyserId, UUID uuid, EntityDefinition<?> definition, Vector3f position, Vector3f motion, float yaw, float pitch, float headYaw) {
@@ -160,7 +163,8 @@ public class PigEntity extends AnimalEntity implements Tickable, ClientVehicle {
         return getPlayerPassenger() == session.getPlayerEntity() && session.getPlayerInventory().isHolding(Items.CARROT_ON_A_STICK);
     }
 
-    public void setVariant(EntityMetadata<Holder<PigVariant>,? extends MetadataType<Holder<PigVariant>>> holderEntityMetadata) {
-        // TODO
+    @Override
+    protected JavaRegistryKey<BuiltInVariant> variantRegistry() {
+        return JavaRegistries.PIG_VARIANT;
     }
 }

core/src/main/java/org/geysermc/geyser/entity/type/living/animal/farm/TemperatureVariantAnimal.java

@@ -0,0 +1,90 @@
+/*
+ * Copyright (c) 2025 GeyserMC. http://geysermc.org
+ *
+ * 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.
+ *
+ * @author GeyserMC
+ * @link https://github.com/GeyserMC/Geyser
+ */
+
+package org.geysermc.geyser.entity.type.living.animal.farm;
+
+import net.kyori.adventure.key.Key;
+import org.checkerframework.checker.nullness.qual.Nullable;
+import org.cloudburstmc.math.vector.Vector3f;
+import org.cloudburstmc.protocol.bedrock.data.entity.EntityDataTypes;
+import org.geysermc.geyser.entity.EntityDefinition;
+import org.geysermc.geyser.entity.type.living.animal.AnimalEntity;
+import org.geysermc.geyser.session.GeyserSession;
+import org.geysermc.geyser.session.cache.registry.JavaRegistryKey;
+import org.geysermc.geyser.session.cache.registry.RegistryEntryContext;
+import org.geysermc.geyser.util.MinecraftKey;
+import org.geysermc.mcprotocollib.protocol.data.game.Holder;
+import org.geysermc.mcprotocollib.protocol.data.game.entity.metadata.EntityMetadata;
+import org.geysermc.mcprotocollib.protocol.data.game.entity.metadata.MetadataType;
+
+import java.util.Locale;
+import java.util.UUID;
+import java.util.function.Function;
+
+public abstract class TemperatureVariantAnimal<Variant> extends AnimalEntity {
+
+    public TemperatureVariantAnimal(GeyserSession session, int entityId, long geyserId, UUID uuid, EntityDefinition<?> definition,
+                                    Vector3f position, Vector3f motion, float yaw, float pitch, float headYaw) {
+        super(session, entityId, geyserId, uuid, definition, position, motion, yaw, pitch, headYaw);
+    }
+
+    protected abstract JavaRegistryKey<BuiltInVariant> variantRegistry();
+
+    public void setVariant(EntityMetadata<Holder<Variant>, ? extends MetadataType<Holder<Variant>>> variant) {
+        BuiltInVariant animalVariant;
+        if (variant.getValue().isId()) {
+            animalVariant = variantRegistry().fromNetworkId(session, variant.getValue().id());
+            if (animalVariant == null) {
+                animalVariant = BuiltInVariant.TEMPERATE;
+            }
+        } else {
+            animalVariant = BuiltInVariant.TEMPERATE;
+        }
+        dirtyMetadata.put(EntityDataTypes.VARIANT, animalVariant.ordinal());
+    }
+
+    public enum BuiltInVariant {
+        COLD,
+        TEMPERATE,
+        WARM;
+
+        public static final Function<RegistryEntryContext, BuiltInVariant> READER = context -> getByJavaIdentifier(context.id());
+
+        private final Key javaIdentifier;
+
+        BuiltInVariant() {
+            javaIdentifier = MinecraftKey.key(name().toLowerCase(Locale.ROOT));
+        }
+
+        public static @Nullable BuiltInVariant getByJavaIdentifier(Key identifier) {
+            for (BuiltInVariant variant : values()) {
+                if (variant.javaIdentifier.equals(identifier)) {
+                    return variant;
+                }
+            }
+            return null;
+        }
+    }
+}

core/src/main/java/org/geysermc/geyser/session/cache/RegistryCache.java

@@ -38,6 +38,7 @@ import org.cloudburstmc.nbt.NbtType;
 import org.cloudburstmc.protocol.bedrock.data.TrimMaterial;
 import org.cloudburstmc.protocol.bedrock.data.TrimPattern;
 import org.geysermc.geyser.GeyserImpl;
+import org.geysermc.geyser.entity.type.living.animal.farm.TemperatureVariantAnimal;
 import org.geysermc.geyser.entity.type.living.animal.tameable.WolfEntity;
 import org.geysermc.geyser.inventory.item.BannerPattern;
 import org.geysermc.geyser.inventory.item.GeyserInstrument;
@@ -94,6 +95,10 @@ public final class RegistryCache {
         register("banner_pattern", cache -> cache.bannerPatterns, context -> BannerPattern.getByJavaIdentifier(context.id()));
         register("wolf_variant", cache -> cache.wolfVariants, context -> WolfEntity.BuiltInWolfVariant.getByJavaIdentifier(context.id().asString()));
 
+        register(JavaRegistries.PIG_VARIANT, cache -> cache.pigVariants, TemperatureVariantAnimal.BuiltInVariant.READER);
+        register(JavaRegistries.COW_VARIANT, cache -> cache.cowVariants, TemperatureVariantAnimal.BuiltInVariant.READER);
+        register(JavaRegistries.CHICKEN_VARIANT, cache -> cache.chickenVariants, TemperatureVariantAnimal.BuiltInVariant.READER);
+
         // Load from MCProtocolLib's classloader
         NbtMap tag = MinecraftProtocol.loadNetworkCodec();
         Map<Key, Map<Key, NbtMap>> defaults = new HashMap<>();
@@ -134,6 +139,10 @@ public final class RegistryCache {
     private final JavaRegistry<WolfEntity.BuiltInWolfVariant> wolfVariants = new SimpleJavaRegistry<>();
     private final JavaRegistry<GeyserInstrument> instruments = new SimpleJavaRegistry<>();
 
+    private final JavaRegistry<TemperatureVariantAnimal.BuiltInVariant> pigVariants = new SimpleJavaRegistry<>();
+    private final JavaRegistry<TemperatureVariantAnimal.BuiltInVariant> cowVariants = new SimpleJavaRegistry<>();
+    private final JavaRegistry<TemperatureVariantAnimal.BuiltInVariant> chickenVariants = new SimpleJavaRegistry<>();
+
     public RegistryCache(GeyserSession session) {
         this.session = session;
     }

core/src/main/java/org/geysermc/geyser/session/cache/registry/JavaRegistries.java

@@ -27,6 +27,7 @@ package org.geysermc.geyser.session.cache.registry;
 
 import net.kyori.adventure.key.Key;
 import org.checkerframework.checker.nullness.qual.Nullable;
+import org.geysermc.geyser.entity.type.living.animal.farm.TemperatureVariantAnimal;
 import org.geysermc.geyser.inventory.item.BannerPattern;
 import org.geysermc.geyser.item.enchantment.Enchantment;
 import org.geysermc.geyser.item.type.Item;
@@ -49,7 +50,10 @@ public class JavaRegistries {
     public static final JavaRegistryKey<Block> BLOCK = create("block", BlockRegistries.JAVA_BLOCKS, Block::javaId);
     public static final JavaRegistryKey<Item> ITEM = create("item", Registries.JAVA_ITEMS, Item::javaId);
     public static final JavaRegistryKey<Enchantment> ENCHANTMENT = create("enchantment", RegistryCache::enchantments);
-    public static final JavaRegistryKey<BannerPattern> BANNER_PATTERNS = create("banner_pattern", RegistryCache::bannerPatterns);
+    public static final JavaRegistryKey<BannerPattern> BANNER_PATTERN = create("banner_pattern", RegistryCache::bannerPatterns);
+    public static final JavaRegistryKey<TemperatureVariantAnimal.BuiltInVariant> PIG_VARIANT = create("pig_variant", RegistryCache::pigVariants);
+    public static final JavaRegistryKey<TemperatureVariantAnimal.BuiltInVariant> COW_VARIANT = create("cow_variant", RegistryCache::cowVariants);
+    public static final JavaRegistryKey<TemperatureVariantAnimal.BuiltInVariant> CHICKEN_VARIANT = create("chicken_variant", RegistryCache::chickenVariants);
 
     private static <T> JavaRegistryKey<T> create(String key, JavaRegistryKey.NetworkSerializer<T> networkSerializer, JavaRegistryKey.NetworkDeserializer<T> networkDeserializer) {
         JavaRegistryKey<T> registry = new JavaRegistryKey<>(MinecraftKey.key(key), networkSerializer, networkDeserializer);

core/src/main/java/org/geysermc/geyser/translator/inventory/LoomInventoryTranslator.java

@@ -60,7 +60,7 @@ import java.util.List;
 
 public class LoomInventoryTranslator extends AbstractBlockInventoryTranslator {
 
-    private static final Tag<BannerPattern> NO_ITEMS_REQUIRED = new Tag<>(JavaRegistries.BANNER_PATTERNS, Key.key("no_item_required"));
+    private static final Tag<BannerPattern> NO_ITEMS_REQUIRED = new Tag<>(JavaRegistries.BANNER_PATTERN, Key.key("no_item_required"));
 
     public LoomInventoryTranslator() {
         super(4, Blocks.LOOM, ContainerType.LOOM, UIInventoryUpdater.INSTANCE);