[1.16.5] NullPointerException when Spawning in Entity

[Pickle_Face5]

Hi, I was trying to add a piranha entity in the game. Very similar to Cod, and when testing it out, I realised that I was getting a NullPointerException. I guess that I'm forgetting something important like a function thats required or such, so I'm reaching out to see if someone can point me in the right direction.

Piranha Entity class:

  Reveal hidden contents

public class PiranhaEntity extends AbstractGroupFishEntity {
    public PiranhaEntity(EntityType<? extends PiranhaEntity> p_i49856_1_, World p_i49856_2_) {
        super(p_i49856_1_, p_i49856_2_);
    }

    @Override
    protected ItemStack getBucketItemStack() {
        return new ItemStack(ItemsInit.PIRANHA_BUCKET.get());
    }

    @Override
    protected SoundEvent getAmbientSound() {
        return SoundEvents.COD_AMBIENT;
    }

    @Override
    protected SoundEvent getDeathSound() {
        return SoundEvents.COD_DEATH;
    }

    @Override
    protected SoundEvent getHurtSound(DamageSource p_184601_1_) {
        return SoundEvents.COD_HURT;
    }

    @Override
    protected SoundEvent getFlopSound() {
        return SoundEvents.COD_FLOP;
    }

    @Override
    public int getMaxSchoolSize() {
        return 3;
    }

    @Override
    protected void registerGoals() {
        super.registerGoals();
    }

    @Override
    public void tick() {
        super.tick();
    }

 

Registering the Entity:

  Reveal hidden contents

public static final DeferredRegister<EntityType<?>> ENTITIES = DeferredRegister.create(ForgeRegistries.ENTITIES, OceansCompound.MOD_ID);

    public static final RegistryObject<EntityType<PiranhaEntity>> PIRANHA = ENTITIES.register("piranha", () ->
            EntityType.Builder.of(PiranhaEntity::new, EntityClassification.MONSTER)
                    .sized(EntityType.COD.getWidth(), EntityType.COD.getHeight())
            .build(new ResourceLocation(OceansCompound.MOD_ID, "piranha").toString())
    );

    @Mod.EventBusSubscriber(modid = OceansCompound.MOD_ID, bus = Mod.EventBusSubscriber.Bus.MOD)
    public static class EntityHandler {
        @SubscribeEvent
        public void entityAddAttributes(final EntityAttributeCreationEvent event) {
            event.put(PIRANHA.get(), PiranhaEntity.createAttributes()
                    .add(Attributes.MAX_HEALTH, 5).build());
        }
    }

 

Piranha Rendering:

  Reveal hidden contents

private static final ResourceLocation PIRANHA_LOCATION = new ResourceLocation(OceansCompound.MOD_ID, "textures/entity/fish/piranha.png");

    public PiranhaRenderer(EntityRendererManager p_i48864_1_) {
        super(p_i48864_1_, new PiranhaModel<>(), 0.3F);
    }

    @Override
    public ResourceLocation getTextureLocation(PiranhaEntity p_110775_1_) {
        return PIRANHA_LOCATION;
    }

    protected void setupRotations(PiranhaEntity p_225621_1_, MatrixStack p_225621_2_, float p_225621_3_, float p_225621_4_, float p_225621_5_) {
        super.setupRotations(p_225621_1_, p_225621_2_, p_225621_3_, p_225621_4_, p_225621_5_);
        float f = 4.3F * MathHelper.sin(0.6F * p_225621_3_);
        p_225621_2_.mulPose(Vector3f.YP.rotationDegrees(f));
        if (!p_225621_1_.isInWater()) {
            p_225621_2_.translate(0.1F, 0.1F, -0.1F);
            p_225621_2_.mulPose(Vector3f.ZP.rotationDegrees(90.0F));
        }

    }

 

Finally, Piranha Model:

  Reveal hidden contents

private final ModelRenderer head;
    private final ModelRenderer body;

    public PiranhaModel() {
        texWidth = 64;
        texHeight = 64;

        head = new ModelRenderer(this);
        head.setPos(0.0F, 24.0F, 0.0F);
        head.setTexSize(0, 9).addBox(-3.0F, -2.0F, -7.0F, 7.0F, 2.0F, 7.0F, 0.0F, false);
        head.setTexSize(0, 18).addBox(-2.0F, -8.0F, -6.0F, 5.0F, 6.0F, 6.0F, 0.0F, false);
        head.setTexSize(0, 0).addBox(-3.0F, -4.0F, -7.0F, 7.0F, 2.0F, 7.0F, 0.0F, false);

        body = new ModelRenderer(this);
        body.setPos(0.0F, 24.0F, 0.0F);
        body.setTexSize(22, 18).addBox(-2.0F, -7.0F, 0.0F, 5.0F, 6.0F, 3.0F, 0.0F, false);
        body.setTexSize(24, 5).addBox(-1.0F, -6.1F, 2.0F, 3.0F, 5.0F, 4.0F, 0.0F, false);
        body.setTexSize(8, 30).addBox(0.0F, -5.0F, 5.0F, 1.0F, 4.0F, 3.0F, 0.0F, false);
        body.setTexSize(0, 26).addBox(0.6F, -7.0F, 8.0F, 0.0F, 7.0F, 4.0F, 0.0F, false);

        ModelRenderer backfin_r1 = new ModelRenderer(this);
        backfin_r1.setPos(0.6F, -9.5F, 4.5F);
        body.addChild(backfin_r1);
        setRotationAngle(backfin_r1, 1.5708F, 0.0F, 0.0F);
        backfin_r1.setTexSize(22, 23).addBox(0.0F, -4.5F, -4.5F, 0.0F, 7.0F, 4.0F, 0.0F, false);

        ModelRenderer fin_r1 = new ModelRenderer(this);
        fin_r1.setPos(3.6616F, -4.303F, 4.4246F);
        body.addChild(fin_r1);
        setRotationAngle(fin_r1, -0.6109F, 0.0F, 1.0472F);
        fin_r1.setTexSize(21, 0).addBox(-3.1F, -0.4F, -3.1F, 3.0F, 4.0F, 1.0F, 0.0F, false);

        ModelRenderer fin_r2 = new ModelRenderer(this);
        fin_r2.setPos(-3.6616F, -4.303F, 4.4246F);
        body.addChild(fin_r2);
        setRotationAngle(fin_r2, -0.6109F, 0.0F, -1.0472F);
        fin_r2.setTexSize(29, 0).addBox(0.5F, 0.3F, -2.7F, 3.0F, 4.0F, 1.0F, 0.0F, false);
    }

    @Override
    public void setupAnim(Entity entity, float limbSwing, float limbSwingAmount, float ageInTicks, float netHeadYaw, float headPitch){
        //previously the render function, render code was moved to a method below
    }

    @Override
    public void renderToBuffer(MatrixStack matrixStack, IVertexBuilder buffer, int packedLight, int packedOverlay, float red, float green, float blue, float alpha){
        head.render(matrixStack, buffer, packedLight, packedOverlay);
        body.render(matrixStack, buffer, packedLight, packedOverlay);
    }

    @Override
    public Iterable<ModelRenderer> parts() {
        return ImmutableList.of(this.head, this.body);
    }

    public void setRotationAngle(ModelRenderer modelRenderer, float x, float y, float z) {
        modelRenderer.xRot = x;
        modelRenderer.yRot = y;
        modelRenderer.zRot = z;
    }

 

Any help in the right direction is appreciated, thanks.

[kiou.23]

Would be easier if you posted the actual error too

[Pickle_Face5]

  Quote

Would be easier if you posted the actual error too

Expand  

Yes, that would be a great idea. https://pastebin.com/yK48irm0

[poopoodice]

You have to assign your entity attributes, there's a EntityAttributeCreationEvent or something named similar in the latest version. In older versions you can register them in GlobalEntityTypeAttributes through common setup event.