怎么正确创建投掷物品

版本信息
你使用的IDE：IntelliJ IDEA
你使用的IDE版本:IntelliJ IDEA 2019.3.3 x64
Forge版本: 1.14.4-28.2.0
Minecraft版本: 1.14.4
Mapping 文件版本: 20200119-1.14.4

错误情况简述
我自己按照雪球做了一个投掷物品，可是丢出的时候就报错了，而且并没有生成投掷物实体

报错日志

[15:17:10] [Server thread/FATAL] [minecraft/ThreadTaskExecutor]: Error executing task on Server
java.lang.IllegalStateException: The object net.minecraft.entity.EntityType@3161cec0 (name minecraft:niannian_mian) is being added too late.
	at net.minecraftforge.registries.ForgeRegistry.add(ForgeRegistry.java:348) ~[?:?] {re:classloading}
	at net.minecraftforge.registries.ForgeRegistry.add(ForgeRegistry.java:308) ~[?:?] {re:classloading}
	at net.minecraftforge.registries.NamespacedDefaultedWrapper.register(NamespacedDefaultedWrapper.java:59) ~[?:?] {re:classloading}
	at net.minecraftforge.registries.NamespacedDefaultedWrapper.register(NamespacedDefaultedWrapper.java:69) ~[?:?] {re:classloading}
	at net.minecraftforge.registries.NamespacedDefaultedWrapper.register(NamespacedDefaultedWrapper.java:37) ~[?:?] {re:classloading}
	at net.minecraft.util.registry.Registry.register(Registry.java:228) ~[?:?] {re:classloading}
	at net.minecraft.util.registry.Registry.register(Registry.java:224) ~[?:?] {re:classloading}
	at com.mcxiaoxiao.siyawolfmod.entitys.NiannianmianEntity.<init>(NiannianmianEntity.java:30) ~[?:?] {re:classloading}
	at com.mcxiaoxiao.siyawolfmod.items.Niannianmian.onItemRightClick(Niannianmian.java:22) ~[?:?] {re:classloading}
	at net.minecraft.item.ItemStack.useItemRightClick(ItemStack.java:192) ~[?:?] {re:classloading}
	at net.minecraft.server.management.PlayerInteractionManager.processRightClick(PlayerInteractionManager.java:273) ~[?:?] {re:classloading}
	at net.minecraft.network.play.ServerPlayNetHandler.processTryUseItem(ServerPlayNetHandler.java:865) ~[?:?] {re:classloading}
	at net.minecraft.network.play.client.CPlayerTryUseItemPacket.processPacket(CPlayerTryUseItemPacket.java:28) ~[?:?] {re:classloading}
	at net.minecraft.network.play.client.CPlayerTryUseItemPacket.processPacket(CPlayerTryUseItemPacket.java:9) ~[?:?] {re:classloading}
	at net.minecraft.network.PacketThreadUtil.lambda$checkThreadAndEnqueue$0(PacketThreadUtil.java:19) ~[?:?] {re:classloading}
	at net.minecraft.util.concurrent.TickDelayedTask.run(TickDelayedTask.java:17) ~[?:?] {re:classloading}
	at net.minecraft.util.concurrent.ThreadTaskExecutor.run(ThreadTaskExecutor.java:137) [?:?] {re:classloading,pl:accesstransformer:B}
	at net.minecraft.util.concurrent.RecursiveEventLoop.run(RecursiveEventLoop.java:22) [?:?] {re:classloading}
	at net.minecraft.util.concurrent.ThreadTaskExecutor.driveOne(ThreadTaskExecutor.java:110) [?:?] {re:classloading,pl:accesstransformer:B}
	at net.minecraft.server.MinecraftServer.func_213205_aW(MinecraftServer.java:699) [?:?] {re:classloading,pl:accesstransformer:B}
	at net.minecraft.server.MinecraftServer.driveOne(MinecraftServer.java:693) [?:?] {re:classloading,pl:accesstransformer:B}
	at net.minecraft.util.concurrent.ThreadTaskExecutor.driveUntil(ThreadTaskExecutor.java:120) [?:?] {re:classloading,pl:accesstransformer:B}
	at net.minecraft.server.MinecraftServer.runScheduledTasks(MinecraftServer.java:679) [?:?] {re:classloading,pl:accesstransformer:B}
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:626) [?:?] {re:classloading,pl:accesstransformer:B}
	at java.lang.Thread.run(Thread.java:748) [?:1.8.0_202] {}

相关代码
NiannianmianEntity.java

public class NiannianmianEntity extends ProjectileItemEntity {
    public NiannianmianEntity(EntityType<? extends ProjectileItemEntity> type, World worldIn) {
        super(type, worldIn);
    }

    public NiannianmianEntity(World worldIn, LivingEntity throwerIn){
        super(Registration.NIANNIANMIAN,throwerIn,worldIn);
    }

    public NiannianmianEntity(double x, double y, double z,World worldIn) {
        super(Registration.NIANNIANMIAN,x, y, z,worldIn);
    }

    @Override
    protected Item getDefaultItem() {
        return Items.NIANNIAN_MIAN;
    }

    @OnlyIn(Dist.CLIENT)
    private IParticleData makeParticle() {
        ItemStack itemstack = this.func_213882_k();
        return (IParticleData)(itemstack.isEmpty() ? Items.NIANNIAN_MIAN : new ItemParticleData(ParticleTypes.ITEM, itemstack));
    }

    @OnlyIn(Dist.CLIENT)
    public void handleStatusUpdate(byte id) {
        if (id == 3) {
            IParticleData iparticledata = this.makeParticle();

            for(int i = 0; i < 8; ++i) {
                this.world.addParticle(iparticledata, this.posX, this.posY, this.posZ, 0.0D, 0.0D, 0.0D);
            }
        }

    }

    @Override
    protected void onImpact(RayTraceResult result) {
        if (result.getType() != null) {
            SiyaWolfModMain.LOGGER.info("黏黏面 击中了 " + result.getType().name());

        }

        if (!this.world.isRemote) {
            this.world.setEntityState(this, (byte)3);
            this.remove();
        }
    }
}

NiannianmianRender.java

public class NiannianmianRender extends SpriteRenderer<NiannianmianEntity> {

    public NiannianmianRender(EntityRendererManager renderManagerIn) {
        super(renderManagerIn, Minecraft.getInstance().getItemRenderer(), 1.0F);
    }
}

 The object net.minecraft.entity.EntityType@3161cec0 (name minecraft:niannian_mian) is being added too late,

看起来是你的EntityType这块有问题，你的EntityType注册了吗？

PS: 请不要使用拼音作为变量名……

你的问题解决了吗？解决了请选择一个楼层作为答案，或者自己补充信息作为答案。

emmm现在不报错了，但是扔出去的时候看不到投掷物

请你把你的代码贴上来。

NiannianmianEntity.java

    public NiannianmianEntity(EntityType<? extends ProjectileItemEntity> type, World worldIn) {
        super(type, worldIn);
    }

    public NiannianmianEntity(World worldIn, LivingEntity throwerIn){
        super(Entitys.NIANNIANMIAN,throwerIn,worldIn);
    }

    public NiannianmianEntity(double x, double y, double z,World worldIn) {
        super(Entitys.NIANNIANMIAN,x, y, z,worldIn);
    }

    @Override
    protected Item getDefaultItem() {
        return Items.NIANNIAN_MIAN;
    }

    @OnlyIn(Dist.CLIENT)
    private IParticleData makeParticle() {
        ItemStack itemstack = this.func_213882_k();
        return (IParticleData)(itemstack.isEmpty() ? RegistryHandler.ITEM_NIANNIANMIAN : new ItemParticleData(ParticleTypes.ITEM, itemstack));
    }


    @OnlyIn(Dist.CLIENT)
    public void handleStatusUpdate(byte id) {
        if (id == 3) {
            IParticleData iparticledata = this.makeParticle();

            for(int i = 0; i < 8; ++i) {
                this.world.addParticle(iparticledata, this.posX, this.posY, this.posZ, 0.0D, 0.0D, 0.0D);
            }
        }

    }

    @Override
    protected void onImpact(RayTraceResult result) {
        if (result.getType() == RayTraceResult.Type.ENTITY) {
            Entity entity = ((EntityRayTraceResult)result).getEntity();
            int i = entity instanceof BlazeEntity ? 3 : 0;
            entity.attackEntityFrom(DamageSource.causeThrownDamage(this, this.getThrower()), (float)i);
            SiyaWolfModMain.LOGGER.info("黏黏面 击中了 " + entity.getDisplayName().toString());

        }

        if (!this.world.isRemote) {
            this.world.setEntityState(this, (byte)3);
            this.remove();
        }
    }
}

NiannianmianRender.java

public class NiannianmianRender extends SpriteRenderer<NiannianmianEntity> {

    public NiannianmianRender(EntityRendererManager renderManagerIn) {
        super(renderManagerIn, Minecraft.getInstance().getItemRenderer());
    }
}

Niannianmian.java

public class Niannianmian extends Item {

    public Niannianmian() {
        super(new Properties().group(Utils.itemGroup));
    }

    @Override
    public ActionResult<ItemStack> onItemRightClick(World worldIn, PlayerEntity playerIn, Hand handIn) {
        ItemStack item = playerIn.getHeldItem(handIn);
        worldIn.playSound(null, playerIn.posX, playerIn.posY, playerIn.posZ, SoundEvents.ENTITY_SNOWBALL_THROW, SoundCategory.NEUTRAL, 0.5F, 0.4F / (random.nextFloat() * 0.4F + 0.8F));
        if (!worldIn.isRemote)
        {
            NiannianmianEntity entityNiannianmian = new NiannianmianEntity(worldIn, playerIn);
            entityNiannianmian.setItem(item);
            entityNiannianmian.shoot(playerIn,playerIn.rotationPitch, playerIn.rotationYaw, 0.0F, 1.5F, 1.0F);
            worldIn.addEntity(entityNiannianmian);
            playerIn.setActiveHand(handIn);
        }


        return new ActionResult<>(ActionResultType.SUCCESS, item);
    }
}

你的NiannianmianEntity.java代码不全。

你的渲染器注册了吗？

NiannianmianEntity.java

public class NiannianmianEntity extends ProjectileItemEntity {
    public NiannianmianEntity(EntityType<? extends ProjectileItemEntity> type, World worldIn) {
        super(type, worldIn);
    }

    public NiannianmianEntity(World worldIn, LivingEntity throwerIn){
        super(Entitys.NIANNIANMIAN,throwerIn,worldIn);
    }

    public NiannianmianEntity(double x, double y, double z,World worldIn) {
        super(Entitys.NIANNIANMIAN,x, y, z,worldIn);
    }

    @Override
    protected Item getDefaultItem() {
        return Items.NIANNIAN_MIAN;
    }

    @OnlyIn(Dist.CLIENT)
    private IParticleData makeParticle() {
        ItemStack itemstack = this.func_213882_k();
        return (IParticleData)(itemstack.isEmpty() ? RegistryHandler.ITEM_NIANNIANMIAN : new ItemParticleData(ParticleTypes.ITEM, itemstack));
    }


    @OnlyIn(Dist.CLIENT)
    public void handleStatusUpdate(byte id) {
        if (id == 3) {
            IParticleData iparticledata = this.makeParticle();

            for(int i = 0; i < 8; ++i) {
                this.world.addParticle(iparticledata, this.posX, this.posY, this.posZ, 0.0D, 0.0D, 0.0D);
            }
        }

    }

    @Override
    protected void onImpact(RayTraceResult result) {
        if (result.getType() == RayTraceResult.Type.ENTITY) {
            Entity entity = ((EntityRayTraceResult)result).getEntity();
            int i = entity instanceof BlazeEntity ? 3 : 0;
            entity.attackEntityFrom(DamageSource.causeThrownDamage(this, this.getThrower()), (float)i);
            SiyaWolfModMain.LOGGER.info("黏黏面 击中了 " + entity.getDisplayName().toString());

        }

        if (!this.world.isRemote) {
            this.world.setEntityState(this, (byte)3);
            this.remove();
        }
    }
}

你的注册代码呢？

RegistryHandler.java

public class RegistryHandler {
    public static final BasicParticleType ITEM_NIANNIANMIAN = register("item_niannianmian", false);

    @SubscribeEvent
    public static void onItemsRegistry(final RegistryEvent.Register<Item> event) {
        //Register Items
        event.getRegistry().register(Items.NIANNIAN_MIAN);
    }

   @SubscribeEvent
    public static void onEntitysRegistry(final RegistryEvent.Register<EntityType<?>> event) {
        event.getRegistry().register(EntityType.Builder.<NiannianmianEntity>create(NiannianmianEntity::new, EntityClassification.MISC)
                .size(0.25f, 0.25f)
                .build("niannianmian").setRegistryName(MODID,"niannianmian"));
    }

    public static BasicParticleType register(String key, boolean alwaysShow) {
        return (BasicParticleType) Registry.<ParticleType<? extends IParticleData>>register(Registry.PARTICLE_TYPE, key, new BasicParticleType(alwaysShow));
    }
}

ClientProxy.java

public class ClientProxy implements IProxy {

    public void init(){
        RenderingRegistry.registerEntityRenderingHandler(NiannianmianEntity.class, NiannianmianRender::new);
    }

    @Override
    public World getClientWorld() {
        return Minecraft.getInstance().world;
    }

    @Override
    public PlayerEntity getClientPlayer() {
        return Minecraft.getInstance().player;
    }
}

public void init(){
    RenderingRegistry.registerEntityRenderingHandler(NiannianmianEntity.class, NiannianmianRender::new);
}

这个函数在哪里调用了？

SiyaWolfModMain.java

@Mod(SiyaWolfModMain.MODID)
public class SiyaWolfModMain {
    public  static final String  MODID = "siyawolfmod";
    public static final IProxy proxy = DistExecutor.runForDist(() -> () -> new ClientProxy(), () -> () -> new ServerProxy());
    public static ClientSetup Setup = new ClientSetup();

    public SiyaWolfModMain() {
        // Register the setup method for modloading
        FMLJavaModLoadingContext.get().getModEventBus().addListener(this::Setup);
        Registration.init();
    }

    private <T extends Event> void Setup(T t) {
        Setup.init();
        proxy.init();
    }
}

emmm现在不报错了，但是扔出去的时候看不到投掷物

有没有图片？

好的等一下

你为什么会觉得它会支持泛型？下个断点看看执行了没？

另一个问题建议重新发帖询问。
此贴关闭。