Custom Entity

src/main/java/com/technovision/tutorial/Tutorial.java

@@ -1,10 +1,14 @@
 package com.technovision.tutorial;
 
+import com.technovision.tutorial.entities.HogEntity;
 import com.technovision.tutorial.init.ModBlocks;
+import com.technovision.tutorial.init.ModEntityType;
 import com.technovision.tutorial.init.ModItems;
+import net.minecraft.entity.ai.attributes.GlobalEntityTypeAttributes;
 import net.minecraft.item.ItemGroup;
 import net.minecraft.item.ItemStack;
 import net.minecraftforge.common.MinecraftForge;
+import net.minecraftforge.fml.DeferredWorkQueue;
 import net.minecraftforge.fml.common.Mod;
 import net.minecraftforge.fml.event.lifecycle.FMLClientSetupEvent;
 import net.minecraftforge.fml.event.lifecycle.FMLCommonSetupEvent;
@@ -24,11 +28,16 @@ public class Tutorial
 
         ModBlocks.BLOCKS.register(FMLJavaModLoadingContext.get().getModEventBus());
         ModItems.ITEMS.register(FMLJavaModLoadingContext.get().getModEventBus());
+        ModEntityType.ENTITY_TYPES.register(FMLJavaModLoadingContext.get().getModEventBus());
 
         MinecraftForge.EVENT_BUS.register(this);
     }
 
-    private void setup(final FMLCommonSetupEvent event) { }
+    private void setup(final FMLCommonSetupEvent event) {
+        DeferredWorkQueue.runLater(() -> {
+            GlobalEntityTypeAttributes.put(ModEntityType.GOAT.get(), HogEntity.setCustomAttributes().func_233813_a_());
+        });
+    }
 
     private void doClientStuff(final FMLClientSetupEvent event) { }
 

src/main/java/com/technovision/tutorial/client/entity/model/HogModel.java

@@ -0,0 +1,80 @@
+package com.technovision.tutorial.client.entity.model;
+
+import com.mojang.blaze3d.matrix.MatrixStack;
+import com.mojang.blaze3d.vertex.IVertexBuilder;
+import com.technovision.tutorial.entities.HogEntity;
+import net.minecraft.client.renderer.entity.model.EntityModel;
+import net.minecraft.client.renderer.entity.model.PigModel;
+import net.minecraft.client.renderer.model.ModelRenderer;
+
+public class HogModel<T extends HogEntity> extends EntityModel<T> {
+
+    private final ModelRenderer body;
+    private final ModelRenderer rotation;
+    private final ModelRenderer body_sub_1;
+    private final ModelRenderer head;
+    private final ModelRenderer leg1;
+    private final ModelRenderer leg2;
+    private final ModelRenderer leg3;
+    private final ModelRenderer leg4;
+
+    public HogModel() {
+        textureWidth = 64;
+        textureHeight = 32;
+
+        body = new ModelRenderer(this);
+        body.setRotationPoint(0.0F, 11.0F, 2.0F);
+
+
+        rotation = new ModelRenderer(this);
+        rotation.setRotationPoint(0.0F, 0.0F, 0.0F);
+        body.addChild(rotation);
+        setRotationAngle(rotation, 1.5708F, 0.0F, 0.0F);
+
+
+        body_sub_1 = new ModelRenderer(this);
+        body_sub_1.setRotationPoint(0.0F, 0.0F, 0.0F);
+        rotation.addChild(body_sub_1);
+        body_sub_1.setTextureOffset(28, 8).addBox(-5.0F, -10.0F, -7.0F, 10.0F, 16.0F, 8.0F, 0.0F, false);
+
+        head = new ModelRenderer(this);
+        head.setRotationPoint(0.0F, 12.0F, -6.0F);
+        head.setTextureOffset(0, 0).addBox(-4.0F, -4.0F, -8.0F, 8.0F, 8.0F, 8.0F, 0.0F, false);
+        head.setTextureOffset(16, 16).addBox(-2.0F, 0.0F, -9.0F, 4.0F, 3.0F, 1.0F, 0.0F, false);
+
+        leg1 = new ModelRenderer(this);
+        leg1.setRotationPoint(3.0F, 18.0F, 7.0F);
+        leg1.setTextureOffset(0, 16).addBox(-2.0F, 0.0F, -2.0F, 4.0F, 6.0F, 4.0F, 0.0F, false);
+
+        leg2 = new ModelRenderer(this);
+        leg2.setRotationPoint(-3.0F, 18.0F, 7.0F);
+        leg2.setTextureOffset(0, 16).addBox(-2.0F, 0.0F, -2.0F, 4.0F, 6.0F, 4.0F, 0.0F, false);
+
+        leg3 = new ModelRenderer(this);
+        leg3.setRotationPoint(3.0F, 18.0F, -5.0F);
+        leg3.setTextureOffset(0, 16).addBox(-2.0F, 0.0F, -2.0F, 4.0F, 6.0F, 4.0F, 0.0F, false);
+
+        leg4 = new ModelRenderer(this);
+        leg4.setRotationPoint(-3.0F, 18.0F, -5.0F);
+        leg4.setTextureOffset(0, 16).addBox(-2.0F, 0.0F, -2.0F, 4.0F, 6.0F, 4.0F, 0.0F, false);
+    }
+
+    @Override
+    public void render(MatrixStack matrixStack, IVertexBuilder buffer, int packedLight, int packedOverlay, float red, float green, float blue, float alpha){
+        body.render(matrixStack, buffer, packedLight, packedOverlay);
+        head.render(matrixStack, buffer, packedLight, packedOverlay);
+        leg1.render(matrixStack, buffer, packedLight, packedOverlay);
+        leg2.render(matrixStack, buffer, packedLight, packedOverlay);
+        leg3.render(matrixStack, buffer, packedLight, packedOverlay);
+        leg4.render(matrixStack, buffer, packedLight, packedOverlay);
+    }
+
+    public void setRotationAngle(ModelRenderer modelRenderer, float x, float y, float z) {
+        modelRenderer.rotateAngleX = x;
+        modelRenderer.rotateAngleY = y;
+        modelRenderer.rotateAngleZ = z;
+    }
+
+    @Override
+    public void setRotationAngles(T entityIn, float limbSwing, float limbSwingAmount, float ageInTicks, float netHeadYaw, float headPitch) { }
+}

src/main/java/com/technovision/tutorial/client/entity/render/HogRenderer.java

@@ -0,0 +1,22 @@
+package com.technovision.tutorial.client.entity.render;
+
+import com.technovision.tutorial.Tutorial;
+import com.technovision.tutorial.client.entity.model.HogModel;
+import com.technovision.tutorial.entities.HogEntity;
+import net.minecraft.client.renderer.entity.EntityRendererManager;
+import net.minecraft.client.renderer.entity.MobRenderer;
+import net.minecraft.util.ResourceLocation;
+
+public class HogRenderer extends MobRenderer<HogEntity, HogModel<HogEntity>> {
+
+    protected static final ResourceLocation TEXTURE = new ResourceLocation(Tutorial.MOD_ID, "textures/entity/hog.png");
+
+    public HogRenderer(EntityRendererManager renderManagerIn) {
+        super(renderManagerIn, new com.technovision.tutorial.client.entity.model.HogModel<>(), 0.7f);
+    }
+
+    @Override
+    public ResourceLocation getEntityTexture(HogEntity entity) {
+        return TEXTURE;
+    }
+}

src/main/java/com/technovision/tutorial/entities/HogEntity.java

@@ -0,0 +1,98 @@
+package com.technovision.tutorial.entities;
+
+import com.technovision.tutorial.init.ModEntityType;
+import net.minecraft.block.BlockState;
+import net.minecraft.entity.*;
+import net.minecraft.entity.ai.attributes.AttributeModifierMap;
+import net.minecraft.entity.ai.attributes.Attributes;
+import net.minecraft.entity.ai.goal.*;
+import net.minecraft.entity.passive.AnimalEntity;
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.item.Items;
+import net.minecraft.item.crafting.Ingredient;
+import net.minecraft.util.DamageSource;
+import net.minecraft.util.SoundEvent;
+import net.minecraft.util.SoundEvents;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.world.World;
+import net.minecraftforge.api.distmarker.Dist;
+import net.minecraftforge.api.distmarker.OnlyIn;
+
+public class HogEntity extends AnimalEntity {
+
+    private static final Ingredient TEMPTATION_ITEMS = Ingredient.fromItems(Items.CARROT, Items.POTATO, Items.BEETROOT);
+
+    private EatGrassGoal eatGrassGoal;
+    private int goatTimer;
+
+    public HogEntity(EntityType<? extends AnimalEntity> type, World worldIn) {
+        super(type, worldIn);
+    }
+
+    public static AttributeModifierMap.MutableAttribute setCustomAttributes() {
+        //func_233666_p_ ---> registerAttributes()
+        //func_233815_a_ ---> createMutableAttribute()
+        return MobEntity.func_233666_p_().func_233815_a_(Attributes.MAX_HEALTH, 10.0D)
+                .func_233815_a_(Attributes.MOVEMENT_SPEED, 0.25D);
+    }
+
+    @Override
+    public AgeableEntity createChild(AgeableEntity ageable) {
+        return ModEntityType.GOAT.get().create(this.world);
+    }
+
+    @Override
+    protected void registerGoals() {
+        super.registerGoals();
+        this.eatGrassGoal = new EatGrassGoal(this);
+        this.goalSelector.addGoal(0, new SwimGoal(this));
+        this.goalSelector.addGoal(1, new PanicGoal(this, 1.25D));
+        this.goalSelector.addGoal(2, new BreedGoal(this, 1.0D));
+        this.goalSelector.addGoal(3, new TemptGoal(this, 1.1D, TEMPTATION_ITEMS, false));
+        this.goalSelector.addGoal(4, new FollowParentGoal(this, 1.1D));
+        this.goalSelector.addGoal(5, this.eatGrassGoal);
+        this.goalSelector.addGoal(6, new WaterAvoidingRandomWalkingGoal(this, 1.0D));
+        this.goalSelector.addGoal(7, new LookAtGoal(this, PlayerEntity.class, 6.0F));
+        this.goalSelector.addGoal(8, new LookRandomlyGoal(this));
+    }
+
+    @Override
+    protected SoundEvent getAmbientSound() { return SoundEvents.ENTITY_PIG_AMBIENT; }
+
+    @Override
+    protected SoundEvent getDeathSound() { return SoundEvents.ENTITY_PIG_DEATH; }
+
+    @Override
+    protected SoundEvent getHurtSound(DamageSource damageSourceIn) {
+        return SoundEvents.ENTITY_PIG_HURT;
+    }
+
+    @Override
+    protected void playStepSound(BlockPos pos, BlockState blockIn) {
+        this.playSound(SoundEvents.ENTITY_PIG_STEP, 0.15F, 1.0F);
+    }
+
+    @Override
+    protected void updateAITasks() {
+        this.goatTimer = this.eatGrassGoal.getEatingGrassTimer();
+        super.updateAITasks();
+    }
+
+    @Override
+    public void livingTick() {
+        if (this.world.isRemote) {
+            this.goatTimer = Math.max(0, this.goatTimer - 1);
+        }
+        super.livingTick();
+    }
+
+    @OnlyIn(Dist.CLIENT)
+    public void handleStatusUpdate(byte id) {
+        if (id == 10) {
+            this.goatTimer = 40;
+        } else {
+            super.handleStatusUpdate(id);
+        }
+
+    }
+}

src/main/java/com/technovision/tutorial/init/ModEntityType.java

@@ -0,0 +1,21 @@
+package com.technovision.tutorial.init;
+
+import com.technovision.tutorial.Tutorial;
+import com.technovision.tutorial.entities.HogEntity;
+import net.minecraft.entity.EntityClassification;
+import net.minecraft.entity.EntityType;
+import net.minecraft.util.ResourceLocation;
+import net.minecraftforge.fml.RegistryObject;
+import net.minecraftforge.registries.DeferredRegister;
+import net.minecraftforge.registries.ForgeRegistries;
+
+public class ModEntityType {
+
+    public static final DeferredRegister<EntityType<?>> ENTITY_TYPES = DeferredRegister.create(ForgeRegistries.ENTITIES, Tutorial.MOD_ID);
+
+    // Entity Types
+    public static final RegistryObject<EntityType<HogEntity>> GOAT = ENTITY_TYPES.register("goat",
+            () -> EntityType.Builder.create(HogEntity::new, EntityClassification.CREATURE)
+                    .size(1.0f, 1.0f) // Hitbox
+                    .build(new ResourceLocation(Tutorial.MOD_ID, "goat").toString()));
+}

src/main/java/com/technovision/tutorial/util/ClientEventBusSubscriber.java

@@ -0,0 +1,19 @@
+package com.technovision.tutorial.util;
+
+import com.technovision.tutorial.Tutorial;
+import com.technovision.tutorial.client.entity.render.HogRenderer;
+import com.technovision.tutorial.init.ModEntityType;
+import net.minecraftforge.api.distmarker.Dist;
+import net.minecraftforge.eventbus.api.SubscribeEvent;
+import net.minecraftforge.fml.client.registry.RenderingRegistry;
+import net.minecraftforge.fml.common.Mod;
+import net.minecraftforge.fml.event.lifecycle.FMLClientSetupEvent;
+
+@Mod.EventBusSubscriber(modid = Tutorial.MOD_ID, bus = Mod.EventBusSubscriber.Bus.MOD, value = Dist.CLIENT)
+public class ClientEventBusSubscriber {
+
+    @SubscribeEvent
+    public static void onClientSetup(FMLClientSetupEvent event) {
+        RenderingRegistry.registerEntityRenderingHandler(ModEntityType.GOAT.get(), HogRenderer::new);
+    }
+}