Like a snowball

 

but, it has no throwing animation

 

my entity

public class FirecrackerEntity extends ProjectileItemEntity {

    public FirecrackerEntity(EntityType<? extends FirecrackerEntity> entityType, World world) {
        super(entityType, world);
    }

    public FirecrackerEntity(World world, LivingEntity livingEntity) {
        super(ModEntityTypes.FIRE_CRACKER.get(), livingEntity, world);
    }

    @Override
    protected Item getDefaultItem() {
        return ModItems.FIRE_CRACKER.get();
    }

    @OnlyIn(Dist.CLIENT)
    private IParticleData getParticle() {
        ItemStack itemstack = this.getItemRaw();
        return itemstack.isEmpty() ? ParticleTypes.ITEM_SNOWBALL : new ItemParticleData(ParticleTypes.ITEM, itemstack);
    }

    @OnlyIn(Dist.CLIENT)
    @Override
    public void handleEntityEvent(byte height) {
        if (height == 3) {
            IParticleData iparticledata = this.getParticle();
            for (int i = 0; i < 8; ++i) {
                this.level.addParticle(iparticledata, this.getX(), this.getY(), this.getZ(), 0.0D, 0.0D, 0.0D);
            }
        }

    }
}

 

my item:

public class Firecracker extends Item {
    public Firecracker() {
        super(new Properties().tab(GroupDefine.MISC).stacksTo(16));
    }

    @Override
    public ActionResult<ItemStack> use(World world, PlayerEntity player, Hand hand) {
        ItemStack itemstack = player.getItemInHand(hand);
        world.playSound(null, player.getX(), player.getY(), player.getZ(), ModSounds.FIRE_CRACKER.get(),
                SoundCategory.VOICE, 1F, 1F);
        if (!world.isClientSide) {
            FirecrackerEntity firecracker = new FirecrackerEntity(world, player);
            firecracker.setItem(itemstack);
            firecracker.shootFromRotation(player, player.xRot, player.yRot, 0.0F, 1.5F, 1.0F);
            world.addFreshEntity(firecracker);
        }
        if (!player.abilities.instabuild) {
            itemstack.shrink(1);
        }
        return ActionResult.sidedSuccess(itemstack, world.isClientSide());
    }
}

 

entity register

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

    public static final RegistryObject<EntityType<FirecrackerEntity>> FIRE_CRACKER = ENTITY_TYPE.register(
            "fire_cracker",
            () -> EntityType.Builder.<FirecrackerEntity>of(FirecrackerEntity::new,
                            EntityClassification.MISC).sized(0.5f, 0.5f)
                    .build(new ResourceLocation(ApplicationConstants.MOD_ID, "fire_cracker").toString()));

    public static void register(IEventBus bus) {
        ENTITY_TYPE.register(bus);
    }

my entity class . It doesn't seem to be working, how can I make it run?

 

look: https://error-1254387167.cos.ap-chengdu.myqcloud.com/20211225/2021-12-25-18-24-35.avi

Edited December 25, 20213 yr by Spring

Does

/summon yourmodid:fire_cracker

work?

4 minutes ago, OutCraft said:

Does

/summon yourmodid:fire_cracker

work?

.... NO !

14 minutes ago, Spring said:

ENTITY_TYPE.register(bus);

Then test if this line is being executed (print something in console etc.)

Edit:

Also: does the Entity have a model? Try throwing it with Bounding boxes (F3 + B) enabled

Edited December 25, 20213 yr by OutCraft

2 minutes ago, OutCraft said:

Then test if this line is being executed (print something in console etc.)

yes,It executed

3 minutes ago, OutCraft said:

Does the Entity have a model? Try throwing it with Bounding boxes (F3 + B) enabled

 

8 minutes ago, OutCraft said:

 

..No, I don’t seem to add a model to it, how do I add it?

First:

Can you see a white cube when Bounding boxes (F3 + B) are enabled and you throw it?

Just now, OutCraft said:

First:

Can you see a white cube when Bounding boxes (F3 + B) are enabled and you throw it?

No

Also not when you summon it?

Edited December 25, 20213 yr by OutCraft

2 minutes ago, OutCraft said:

Also now when you summon it?

When I use summon, there is no Bounding boxes，(F3+B)

...

Try changing the extending class from FirecrackerEntity to just Entity

Are you on 1.16.5?

2 minutes ago, OutCraft said:

Are you on 1.16.5?

yes

I copied your code and tried it, but for me it crashes:

"java.lang.NullPointerException: Cannot invoke "net.minecraft.client.renderer.entity.EntityRenderer.shouldRender(net.minecraft.world.entity.Entity, net.minecraft.client.renderer.culling.Frustum, double, double, double)" because "entityrenderer" is null"

This means that the Entity doesn't have a renderer or model.

Does it crash also for you?

Edited December 25, 20213 yr by OutCraft
Spelling

2 minutes ago, OutCraft said:

I copied your code and tried it, but for me it crashes:

"java.lang.NullPointerException: Cannot invoke "net.minecraft.client.renderer.entity.EntityRenderer.shouldRender(net.minecraft.world.entity.Entity, net.minecraft.client.renderer.culling.Frustum, double, double, double)" because "entityrenderer" is null"

This means that the Entity doesn't have a model.

Does it crash also for you?

 

add this:

MinecraftForge.EVENT_BUS.register(this);

ModEntityTypes.register(modEventBus);

try again?

Just now, Spring said:

 

add this:

MinecraftForge.EVENT_BUS.register(this);

ModEntityTypes.register(modEventBus);

try again?

Because I have no problem here, but it does not have a model, how can I add a model?

7 minutes ago, Spring said:

MinecraftForge.EVENT_BUS.register(this);

ModEntityTypes.register(modEventBus);

I added this, but it crashes because it doesn't have a renderer. Does your Entity have a renderer?

2 minutes ago, OutCraft said:

I added this, but it crashes because it doesn't have a renderer. Does your Entity have a renderer?

No, my code is from SnowballEntity class, I didn't see vanilla try this.. So, what should I do.

Vanilla does this in the Client renderer registry:

	@SubscribeEvent
	public static void registerEntityRenders(EntityRenderersEvent.RegisterRenderers event) {
		event.registerEntityRenderer(EntityList.FIRE_CRACKER.get(), ThrownItemRenderer::new);
	}

I did the same and now it works!

Edited December 25, 20213 yr by OutCraft

But you need a texture for the Item, otherwise it's just black-pink

5 minutes ago, OutCraft said:

Vanilla does this in the Client renderer registry:

	@SubscribeEvent
	public static void registerEntityRenders(EntityRenderersEvent.RegisterRenderers event) {
		event.registerEntityRenderer(EntityList.FIRE_CRACKER.get(), ThrownItemRenderer::new);
	}

I did the same and now it works!

you version ?I can't use this code

Edited December 25, 20213 yr by Spring

5 minutes ago, Spring said:

you version ? 

1.16.5, but you need to change 

5 minutes ago, Spring said:

EntityList.FIRE_CRACKER.get()

to

ModEntityTypes.FIRE_CRACKER.get()

because your EntityTypes class is named "ModEntityTypes"

Edited December 25, 20213 yr by OutCraft

2 minutes ago, OutCraft said:

1.16.5, but you need to change 

 

to

ModEntityTypes.FIRE_CRACKER.get()

because your EntityTypes class is named "ModEntityTypes"

yes,i know,but i no class: EntityRenderersEvent、ThrownItemRenderer

 

my forge: 1.16.5-36.2.2

Edited December 25, 20213 yr by Spring

Do you use the Mojang or MCP mappings?

Also you can just search in your IDE for something like RenderEvent and it should show up