[add] RAT

[fix] hitbox from Capybara

gradle.properties

@@ -29,7 +29,7 @@ mod_name=MasterWild
 # The license of the mod. Review your options at https://choosealicense.com/. All Rights Reserved is the default.
 mod_license=All Rights Reserved
 # The mod version. See https://semver.org/
-mod_version=0.2.0
+mod_version=0.2.6
 # The group ID for the mod. It is only important when publishing as an artifact to a Maven repository.
 # This should match the base package used for the mod sources.
 # See https://maven.apache.org/guides/mini/guide-naming-conventions.html

src/generated/resources/.cache/103d9f3f36b01595f1aa5172191e60eff02e6924

@@ -1,6 +1,7 @@
-// 1.21.1	2026-09-29T16:57:54.505766212	Registries
+// 1.21.1	2026-10-03T20:06:11.749153036	Registries
 ead89faabf72208190d381bb26c0381632944e55 data/masterwild/neoforge/biome_modifier/spawn_butterfly.json
 5b1394075b71f32144518c3778e59a37c35788b7 data/masterwild/neoforge/biome_modifier/spawn_capybara.json
+42b42dadaa2670d7d4a4405bbd688cad31734cd1 data/masterwild/neoforge/biome_modifier/spawn_duck.json
 7d8ae6f7dfb59ddf054cabf0a1169a571465c6bc data/masterwild/neoforge/biome_modifier/spawn_firefly.json
 794f7cd1a27f9d8b96379fb661eab0d120cad281 data/masterwild/neoforge/biome_modifier/spawn_hedgehog.json
 3d5b931996cbc1319a2e2afe8ddc7e455f407f18 data/masterwild/neoforge/biome_modifier/spawn_monkey.json

src/generated/resources/.cache/6143fb1502ae754d8039ff811e28c49eaa7e6409

@@ -1,2 +1,2 @@
-// 1.21.1	2026-10-03T14:21:42.612129097	Languages: en_us for mod: masterwild
+// 1.21.1	2026-10-03T20:06:11.750559852	Languages: en_us for mod: masterwild
-7994d49f6ed6926077869619b9bc8775e7d4956a assets/masterwild/lang/en_us.json
+00583df3ad42ddb46acc722e93243863da7ba227 assets/masterwild/lang/en_us.json

src/generated/resources/.cache/d1416cf72769a6a520cc2c44944968403e1a0de7

@@ -1,4 +1,4 @@
-// 1.21.1	2026-10-03T14:21:42.613329425	Item Models: masterwild
+// 1.21.1	2026-10-03T20:08:32.139155153	Item Models: masterwild
 a92e1a88c1d3c3c04b2b001f0bffd19a1f3462f0 assets/masterwild/models/item/banana.json
 8cb5b876c97ae89d180a200612d0d14c8456c2f7 assets/masterwild/models/item/banana_peel.json
 63ec6c618a3a23eab4cab9c52d7d3250de9b516e assets/masterwild/models/item/butterfly_spawn_egg.json
@@ -9,6 +9,7 @@ a92e1a88c1d3c3c04b2b001f0bffd19a1f3462f0 assets/masterwild/models/item/banana.js
 63ec6c618a3a23eab4cab9c52d7d3250de9b516e assets/masterwild/models/item/monkey_spawn_egg.json
 63ec6c618a3a23eab4cab9c52d7d3250de9b516e assets/masterwild/models/item/pinguin_spawn_egg.json
 63ec6c618a3a23eab4cab9c52d7d3250de9b516e assets/masterwild/models/item/raccoon_spawn_egg.json
+63ec6c618a3a23eab4cab9c52d7d3250de9b516e assets/masterwild/models/item/rat_spawn_egg.json
 63ec6c618a3a23eab4cab9c52d7d3250de9b516e assets/masterwild/models/item/red-panda_spawn_egg.json
 63ec6c618a3a23eab4cab9c52d7d3250de9b516e assets/masterwild/models/item/rooster_spawn_egg.json
 63ec6c618a3a23eab4cab9c52d7d3250de9b516e assets/masterwild/models/item/shark_spawn_egg.json

src/generated/resources/assets/masterwild/lang/en_us.json

@@ -8,6 +8,7 @@
   "entity.masterwild.monkey": "Monkey",
   "entity.masterwild.pinguin": "Pinguin",
   "entity.masterwild.raccoon": "Raccoon",
+  "entity.masterwild.rat": "Rat",
   "entity.masterwild.red_panda": "Red Panda",
   "entity.masterwild.rooster": "Rooster",
   "entity.masterwild.shark": "Shark",
@@ -21,6 +22,7 @@
   "item.masterwild.monkey_spawn_egg": "Monkey Spawn Egg",
   "item.masterwild.pinguin_spawn_egg": "Pinguin Spawn Egg",
   "item.masterwild.raccoon_spawn_egg": "Raccoon Spawn Egg",
+  "item.masterwild.rat_spawn_egg": "Rat Spawn Egg",
   "item.masterwild.red-panda_spawn_egg": "Red Panda Spawn Egg",
   "item.masterwild.rooster_spawn_egg": "Rooster Spawn Egg",
   "item.masterwild.shark_spawn_egg": "Shark Spawn Egg",

src/generated/resources/assets/masterwild/models/item/rat_spawn_egg.json

@@ -0,0 +1,3 @@
+{
+  "parent": "minecraft:item/template_spawn_egg"
+}

src/generated/resources/data/masterwild/neoforge/biome_modifier/spawn_duck.json

@@ -0,0 +1,14 @@
+{
+  "type": "neoforge:add_spawns",
+  "biomes": [
+    "minecraft:plains",
+    "minecraft:sunflower_plains",
+    "minecraft:meadow"
+  ],
+  "spawners": {
+    "type": "masterwild:duck",
+    "maxCount": 3,
+    "minCount": 2,
+    "weight": 5
+  }
+}

src/main/java/ovh/glitchlabs/masterwild/Item/ModCreativeModeTabs.java

@@ -33,6 +33,7 @@ public class ModCreativeModeTabs {
                         output.accept(ModItems.MONKEY_SPAWN_EGG);
                         output.accept(ModItems.CAPYBARA_SPAWN_EGG);
                         output.accept(ModItems.DUCK_SPAWN_EGG);
+                        output.accept(ModItems.RAT_SPAWN_EGG);
 
                     }).build());
 

src/main/java/ovh/glitchlabs/masterwild/Item/ModItems.java

@@ -58,6 +58,9 @@ public class ModItems {
     public static final DeferredItem<Item> DUCK_SPAWN_EGG = ITEMS.register("duck_spawn_egg",
             () -> new DeferredSpawnEggItem(ModEntities.DUCK, 0x341b10, 0x516a4c,
                     new Item.Properties()));
+    public static final DeferredItem<Item> RAT_SPAWN_EGG = ITEMS.register("rat_spawn_egg",
+            () -> new DeferredSpawnEggItem(ModEntities.RAT, 0x767677, 0x965654,
+                    new Item.Properties()));
 
     public static void register(IEventBus eventBus) {
         ITEMS.register(eventBus);

src/main/java/ovh/glitchlabs/masterwild/Masterwild.java

@@ -29,6 +29,7 @@ import ovh.glitchlabs.masterwild.entity.client.capibara.CapybaraRenderer;
 import ovh.glitchlabs.masterwild.entity.client.duck.duckRenderer;
 import ovh.glitchlabs.masterwild.entity.client.firefly.FireflyRenderer;
 import ovh.glitchlabs.masterwild.entity.client.hedgehog.HedgehogRenderer;
+import ovh.glitchlabs.masterwild.entity.client.rat.ratRenderer;
 import ovh.glitchlabs.masterwild.entity.client.red_panda.Red_PandaRenderer;
 
 // The value here should match an entry in the META-INF/neoforge.mods.toml file
@@ -88,6 +89,7 @@ public class Masterwild {
             EntityRenderers.register(ModEntities.MONKEY.get(), MonkeyRenderer::new);
             EntityRenderers.register(ModEntities.CAPYBARA.get(), CapybaraRenderer::new);
             EntityRenderers.register(ModEntities.DUCK.get(), duckRenderer::new);
+            EntityRenderers.register(ModEntities.RAT.get(), ratRenderer::new);
         }
     }
 }

src/main/java/ovh/glitchlabs/masterwild/datagen/ModItemModelProvider.java

@@ -32,5 +32,6 @@ public class ModItemModelProvider extends ItemModelProvider {
         withExistingParent(ModItems.MONKEY_SPAWN_EGG.getId().getPath(), mcLoc("item/template_spawn_egg"));
         withExistingParent(ModItems.CAPYBARA_SPAWN_EGG.getId().getPath(), mcLoc("item/template_spawn_egg"));
         withExistingParent(ModItems.DUCK_SPAWN_EGG.getId().getPath(), mcLoc("item/template_spawn_egg"));
+        withExistingParent(ModItems.RAT_SPAWN_EGG.getId().getPath(), mcLoc("item/template_spawn_egg"));
     }
 }

src/main/java/ovh/glitchlabs/masterwild/datagen/ModLanguageProvider.java

@@ -28,6 +28,7 @@ public class ModLanguageProvider extends LanguageProvider {
         add(ModEntities.MONKEY.get(), "Monkey");
         add(ModEntities.CAPYBARA.get(), "Capybara");
         add(ModEntities.DUCK.get(), "Duck");
+        add(ModEntities.RAT.get(), "Rat");
 
         add(ModItems.PINGUIN_SPAWN_EGG.get(), "Pinguin Spawn Egg");
         add(ModItems.FIREFLY_SPAWN_EGG.get(), "Firefly Spawn Egg");
@@ -40,6 +41,7 @@ public class ModLanguageProvider extends LanguageProvider {
         add(ModItems.MONKEY_SPAWN_EGG.get(), "Monkey Spawn Egg");
         add(ModItems.CAPYBARA_SPAWN_EGG.get(), "Capybara Spawn Egg");
         add(ModItems.DUCK_SPAWN_EGG.get(), "Duck Spawn Egg");
+        add(ModItems.RAT_SPAWN_EGG.get(), "Rat Spawn Egg");
 
         add("creativetab.masterwild.masterwild", "MasterWild");
 

src/main/java/ovh/glitchlabs/masterwild/entity/ModEntities.java

@@ -52,12 +52,16 @@ public class ModEntities {
 
     public static final Supplier<EntityType<CapybaraEntity>> CAPYBARA =
             ENTITY_TYPES.register("capybara", () -> EntityType.Builder.of(CapybaraEntity::new, MobCategory.CREATURE)
-                    .sized(0.6f, 0.5f).build("capybara"));
+                    .sized(0.85f, 0.85f).build("capybara"));
 
     public static final Supplier<EntityType<duckEntity>> DUCK =
             ENTITY_TYPES.register("duck", () -> EntityType.Builder.of(duckEntity::new, MobCategory.CREATURE)
                     .sized(0.6f, 0.5f).build("duck"));
 
+    public static final Supplier<EntityType<RatEntity>> RAT =
+            ENTITY_TYPES.register("rat", () -> EntityType.Builder.of(RatEntity::new, MobCategory.CREATURE)
+                    .sized(0.6f, 0.5f).build("rat"));
+
 
     public static void register(IEventBus eventBus) {
         ENTITY_TYPES.register(eventBus);

src/main/java/ovh/glitchlabs/masterwild/entity/client/rat/ratModel.java

@@ -0,0 +1,110 @@
+package ovh.glitchlabs.masterwild.entity.client.rat;// Made with Blockbench 5.2.0
+// Exported for Minecraft version 1.17 or later with Mojang mappings
+// Paste this class into your mod and generate all required imports
+
+
+import com.mojang.blaze3d.vertex.PoseStack;
+import com.mojang.blaze3d.vertex.VertexConsumer;
+import net.minecraft.client.model.HierarchicalModel;
+import net.minecraft.client.model.geom.ModelLayerLocation;
+import net.minecraft.client.model.geom.ModelPart;
+import net.minecraft.client.model.geom.PartPose;
+import net.minecraft.client.model.geom.builders.*;
+import net.minecraft.resources.ResourceLocation;
+import net.minecraft.util.Mth;
+import ovh.glitchlabs.masterwild.Masterwild;
+import ovh.glitchlabs.masterwild.entity.custom.RatEntity;
+
+public class ratModel<T extends RatEntity> extends HierarchicalModel<T> {
+	// This layer location should be baked with EntityRendererProvider.Context in the entity renderer and passed into this model's constructor
+	public static final ModelLayerLocation LAYER_LOCATION = new ModelLayerLocation(ResourceLocation.fromNamespaceAndPath(Masterwild.MODID, "ratmodel"), "main");
+	private final ModelPart Rat;
+	private final ModelPart body;
+	private final ModelPart legs;
+	private final ModelPart R_front_leg;
+	private final ModelPart R_down_leg;
+	private final ModelPart L_front_leg;
+	private final ModelPart L_down_leg;
+	private final ModelPart tail;
+	private final ModelPart head;
+
+	public ratModel(ModelPart root) {
+		this.Rat = root.getChild("Rat");
+		this.body = this.Rat.getChild("body");
+		this.legs = this.body.getChild("legs");
+		this.R_front_leg = this.legs.getChild("R_front_leg");
+		this.R_down_leg = this.legs.getChild("R_down_leg");
+		this.L_front_leg = this.legs.getChild("L_front_leg");
+		this.L_down_leg = this.legs.getChild("L_down_leg");
+		this.tail = this.body.getChild("tail");
+		this.head = this.Rat.getChild("head");
+	}
+
+	public static LayerDefinition createBodyLayer() {
+		MeshDefinition meshdefinition = new MeshDefinition();
+		PartDefinition partdefinition = meshdefinition.getRoot();
+
+		PartDefinition Rat = partdefinition.addOrReplaceChild("Rat", CubeListBuilder.create(), PartPose.offset(0.375F, 22.3644F, -0.7309F));
+
+		PartDefinition body = Rat.addOrReplaceChild("body", CubeListBuilder.create().texOffs(0, 0).addBox(-3.75F, -3.7289F, -5.5383F, 6.0F, 6.0F, 10.0F, new CubeDeformation(0.0F)), PartPose.offset(0.375F, -1.6356F, 2.2691F));
+
+		PartDefinition legs = body.addOrReplaceChild("legs", CubeListBuilder.create(), PartPose.offset(-0.75F, 1.3961F, -0.5383F));
+
+		PartDefinition R_front_leg = legs.addOrReplaceChild("R_front_leg", CubeListBuilder.create().texOffs(26, 27).addBox(-7.0F, 0.0F, -3.0F, 3.0F, 1.0F, 4.0F, new CubeDeformation(0.0F)), PartPose.offset(3.0F, 0.875F, -4.0F));
+
+		PartDefinition R_down_leg = legs.addOrReplaceChild("R_down_leg", CubeListBuilder.create().texOffs(32, 5).addBox(-1.5F, 1.75F, -2.0F, 3.0F, 1.0F, 4.0F, new CubeDeformation(0.0F))
+		.texOffs(24, 32).addBox(-0.5F, -2.25F, -2.0F, 1.0F, 4.0F, 4.0F, new CubeDeformation(0.0F)), PartPose.offset(-3.5F, -0.875F, 4.0F));
+
+		PartDefinition L_front_leg = legs.addOrReplaceChild("L_front_leg", CubeListBuilder.create().texOffs(32, 0).addBox(4.0F, 0.0F, -3.0F, 3.0F, 1.0F, 4.0F, new CubeDeformation(0.0F)), PartPose.offset(-3.0F, 0.875F, -4.0F));
+
+		PartDefinition L_down_leg = legs.addOrReplaceChild("L_down_leg", CubeListBuilder.create().texOffs(14, 29).addBox(-0.5F, -2.25F, -2.0F, 1.0F, 4.0F, 4.0F, new CubeDeformation(0.0F))
+		.texOffs(0, 29).addBox(-1.5F, 1.75F, -2.0F, 3.0F, 1.0F, 4.0F, new CubeDeformation(0.0F)), PartPose.offset(3.5F, -0.875F, 4.0F));
+
+		PartDefinition tail = body.addOrReplaceChild("tail", CubeListBuilder.create(), PartPose.offset(-0.75F, -1.2289F, 3.9617F));
+
+		PartDefinition cube_r1 = tail.addOrReplaceChild("cube_r1", CubeListBuilder.create().texOffs(0, 16).addBox(-1.0F, -2.0F, -1.0F, 1.0F, 1.0F, 12.0F, new CubeDeformation(0.0F)), PartPose.offsetAndRotation(0.5F, 1.5F, 1.0F, -0.1309F, 0.0F, 0.0F));
+
+		PartDefinition head = Rat.addOrReplaceChild("head", CubeListBuilder.create(), PartPose.offset(-0.375F, -3.2955F, -3.0447F));
+
+		PartDefinition cube_r2 = head.addOrReplaceChild("cube_r2", CubeListBuilder.create().texOffs(32, 13).addBox(-2.0F, -3.0F, 1.0F, 3.0F, 3.0F, 0.0F, new CubeDeformation(0.0F)), PartPose.offsetAndRotation(-3.0F, -0.5689F, -2.4744F, 0.0F, 0.1745F, 0.0F));
+
+		PartDefinition cube_r3 = head.addOrReplaceChild("cube_r3", CubeListBuilder.create().texOffs(32, 10).addBox(-1.0F, -3.0F, 1.0F, 3.0F, 3.0F, 0.0F, new CubeDeformation(0.0F)), PartPose.offsetAndRotation(3.0F, -0.5689F, -2.4744F, 0.0F, -0.1745F, 0.0F));
+
+		PartDefinition cube_r4 = head.addOrReplaceChild("cube_r4", CubeListBuilder.create().texOffs(26, 16).addBox(-2.5F, -2.0F, -7.0F, 5.0F, 4.0F, 7.0F, new CubeDeformation(0.0F)), PartPose.offsetAndRotation(0.0F, 0.6811F, 0.2756F, 0.1309F, 0.0F, 0.0F));
+
+		return LayerDefinition.create(meshdefinition, 64, 64);
+	}
+
+	@Override
+	public void setupAnim(RatEntity entity, float limbSwing, float limbSwingAmount, float ageInTicks, float netHeadYaw, float headPitch) {
+		this.root().getAllParts().forEach(ModelPart::resetPose);
+		this.applyHeadRotation(netHeadYaw, headPitch);
+		this.walk(limbSwing, limbSwingAmount);
+	}
+
+	private void applyHeadRotation(float headYaw, float headPitch) {
+		headYaw = Mth.clamp(headYaw, -30f, 30f);
+		headPitch = Mth.clamp(headPitch, -25f, 45f);
+		this.head.yRot = headYaw * ((float) Math.PI / 180f);
+		this.head.xRot = headPitch * ((float) Math.PI / 180f);
+	}
+
+	private void walk(float limbSwing, float limbSwingAmount) {
+		float amount = 1.0F * limbSwingAmount;
+		this.R_front_leg.xRot = Mth.cos(limbSwing * 0.6662F) * amount;
+		this.L_down_leg.xRot = Mth.cos(limbSwing * 0.6662F) * amount;
+		this.L_front_leg.xRot = Mth.cos(limbSwing * 0.6662F + (float) Math.PI) * amount;
+		this.R_down_leg.xRot = Mth.cos(limbSwing * 0.6662F + (float) Math.PI) * amount;
+		this.tail.yRot = Mth.cos(limbSwing * 0.3331F) * 0.2F * amount;
+	}
+
+	@Override
+	public void renderToBuffer(PoseStack poseStack, VertexConsumer vertexConsumer, int packedLight, int packedOverlay, int color) {
+		Rat.render(poseStack, vertexConsumer, packedLight, packedOverlay, color);
+	}
+
+	@Override
+	public ModelPart root() {
+		return Rat;
+	}
+}

src/main/java/ovh/glitchlabs/masterwild/entity/client/rat/ratRenderer.java

@@ -0,0 +1,33 @@
+package ovh.glitchlabs.masterwild.entity.client.rat;
+
+import com.mojang.blaze3d.vertex.PoseStack;
+import net.minecraft.client.renderer.entity.EntityRendererProvider;
+import net.minecraft.client.renderer.entity.MobRenderer;
+import net.minecraft.resources.ResourceLocation;
+import ovh.glitchlabs.masterwild.Masterwild;
+import ovh.glitchlabs.masterwild.entity.custom.RatEntity;
+import ovh.glitchlabs.masterwild.entity.custom.RoosterEntity;
+
+public class ratRenderer extends MobRenderer<RatEntity, ratModel<RatEntity>> {
+    private static final ResourceLocation TEXTURE =
+            ResourceLocation.fromNamespaceAndPath(Masterwild.MODID, "textures/entity/rat.png");
+    private static final float ADULT_SCALE = 0.8f;
+    private static final float BABY_SCALE = 0.45f;
+    private static final float SHADOW = 0.25f;
+
+    public ratRenderer(EntityRendererProvider.Context context) {
+        super(context, new ratModel<>(context.bakeLayer(ratModel.LAYER_LOCATION)), SHADOW);
+    }
+
+    @Override
+    public ResourceLocation getTextureLocation(RatEntity entity) {
+        return TEXTURE;
+    }
+
+    //@Override
+    protected void scale(RoosterEntity entity, PoseStack poseStack, float partialTick) {
+        float scale = entity.isBaby() ? BABY_SCALE : ADULT_SCALE;
+        poseStack.scale(scale, scale, scale);
+        this.shadowRadius = SHADOW * scale;
+    }
+}

src/main/java/ovh/glitchlabs/masterwild/entity/custom/RatEntity.java

@@ -0,0 +1,52 @@
+package ovh.glitchlabs.masterwild.entity.custom;
+
+import net.minecraft.server.level.ServerLevel;
+import net.minecraft.world.entity.AgeableMob;
+import net.minecraft.world.entity.EntityType;
+import net.minecraft.world.entity.Mob;
+import net.minecraft.world.entity.ai.attributes.AttributeSupplier;
+import net.minecraft.world.entity.ai.attributes.Attributes;
+import net.minecraft.world.entity.ai.goal.*;
+import net.minecraft.world.entity.animal.Animal;
+import net.minecraft.world.entity.player.Player;
+import net.minecraft.world.item.ItemStack;
+import net.minecraft.world.item.Items;
+import net.minecraft.world.item.crafting.Ingredient;
+import net.minecraft.world.level.Level;
+import org.jetbrains.annotations.Nullable;
+
+public class RatEntity extends Animal {
+
+    public RatEntity(EntityType<? extends Animal> entityType, Level level) {
+        super(entityType, level);
+    }
+
+    public static AttributeSupplier.Builder createAttributes() {
+        return Mob.createMobAttributes()
+                .add(Attributes.MAX_HEALTH, 5)
+                .add(Attributes.MOVEMENT_SPEED, 0.25)
+                .add(Attributes.FOLLOW_RANGE, 10)
+                .add(Attributes.STEP_HEIGHT, 0.6);
+    }
+
+    @Override
+    protected void registerGoals() {
+        this.goalSelector.addGoal(0, new FloatGoal(this));
+        this.goalSelector.addGoal(1, new PanicGoal(this, 1.5));
+        this.goalSelector.addGoal(2, new BreedGoal(this, 1.0));
+        this.goalSelector.addGoal(4, new FollowParentGoal(this, 1.1));
+        this.goalSelector.addGoal(5, new WaterAvoidingRandomStrollGoal(this, 0.8));
+        this.goalSelector.addGoal(6, new LookAtPlayerGoal(this, Player.class, 6.0F));
+        this.goalSelector.addGoal(7, new RandomLookAroundGoal(this));
+    }
+
+    @Override
+    public boolean isFood(ItemStack stack) {
+        return false;
+    }
+
+    @Override
+    public @Nullable AgeableMob getBreedOffspring(ServerLevel serverLevel, AgeableMob ageableMob) {
+        return null;
+    }
+}

src/main/java/ovh/glitchlabs/masterwild/event/ModEventBusEvents.java

@@ -16,6 +16,7 @@ import ovh.glitchlabs.masterwild.entity.client.capibara.CapybaraModel;
 import ovh.glitchlabs.masterwild.entity.client.duck.duckModel;
 import ovh.glitchlabs.masterwild.entity.client.firefly.FireflyModel;
 import ovh.glitchlabs.masterwild.entity.client.hedgehog.HedgehogModel;
+import ovh.glitchlabs.masterwild.entity.client.rat.ratModel;
 import ovh.glitchlabs.masterwild.entity.client.red_panda.Red_PandaModel;
 import ovh.glitchlabs.masterwild.entity.custom.*;
 
@@ -34,6 +35,7 @@ public class ModEventBusEvents {
         event.registerLayerDefinition(MonkeyModel.LAYER_LOCATION, MonkeyModel::createBodyLayer);
         event.registerLayerDefinition(CapybaraModel.LAYER_LOCATION, CapybaraModel::createBodyLayer);
         event.registerLayerDefinition(duckModel.LAYER_LOCATION, duckModel::createBodyLayer);
+        event.registerLayerDefinition(ratModel.LAYER_LOCATION, ratModel::createBodyLayer);
     }
 
     @SubscribeEvent
@@ -48,5 +50,6 @@ public class ModEventBusEvents {
         event.put(ModEntities.MONKEY.get(), MonkeyEntity.createAttributes().build());
         event.put(ModEntities.CAPYBARA.get(), CapybaraEntity.createAttributes().build());
         event.put(ModEntities.DUCK.get(), duckEntity.createAttributes().build());
+        event.put(ModEntities.RAT.get(), RatEntity.createAttributes().build());
     }
 }

src/main/java/ovh/glitchlabs/masterwild/event/ModSpawnPlacements.java

@@ -36,6 +36,9 @@ public class ModSpawnPlacements {
         event.register(ModEntities.CAPYBARA.get(), SpawnPlacementTypes.ON_GROUND,
                 Heightmap.Types.MOTION_BLOCKING_NO_LEAVES, Animal::checkAnimalSpawnRules,
                 RegisterSpawnPlacementsEvent.Operation.REPLACE);
+        event.register(ModEntities.DUCK.get(), SpawnPlacementTypes.ON_GROUND,
+                Heightmap.Types.MOTION_BLOCKING_NO_LEAVES, Animal::checkAnimalSpawnRules,
+                RegisterSpawnPlacementsEvent.Operation.REPLACE);
 
         event.register(ModEntities.SHARK.get(), SpawnPlacementTypes.IN_WATER,
                 Heightmap.Types.OCEAN_FLOOR, WaterAnimal::checkSurfaceWaterAnimalSpawnRules,

src/main/java/ovh/glitchlabs/masterwild/worldgen/ModBiomeModifiers.java

@@ -30,6 +30,7 @@ public class ModBiomeModifiers {
     public static final ResourceKey<BiomeModifier> SPAWN_BUTTERFLY = registerKey("spawn_butterfly");
     public static final ResourceKey<BiomeModifier> SPAWN_MONKEY = registerKey("spawn_monkey");
     public static final ResourceKey<BiomeModifier> SPAWN_CAPYBARA = registerKey("spawn_capybara");
+    public static final ResourceKey<BiomeModifier> SPAWN_DUCK = registerKey("spawn_duck");
 
     public static void bootstrap(BootstrapContext<BiomeModifier> context) {
         var placedFeatures = context.lookup(Registries.PLACED_FEATURE);
@@ -103,6 +104,13 @@ public class ModBiomeModifiers {
                         biomes.getOrThrow(Biomes.SWAMP),
                         biomes.getOrThrow(Biomes.SAVANNA)),
                 ModEntities.CAPYBARA.get(), 5, 3, 4);
+
+        addSpawn(context, SPAWN_DUCK,
+                HolderSet.direct(
+                        biomes.getOrThrow(Biomes.PLAINS),
+                        biomes.getOrThrow(Biomes.SUNFLOWER_PLAINS),
+                        biomes.getOrThrow(Biomes.MEADOW)),
+                ModEntities.DUCK.get(), 5, 2, 3);
     }
 
     private static void addSpawn(BootstrapContext<BiomeModifier> context, ResourceKey<BiomeModifier> key,