[Unsolved][1.12.2] Problem on spawning one-per-player-entity spawned by item

_Cruelar_ · July 26, 2018

I know that I also try that but for big Problems like that I often start with Vanilla code that works quite similar like in this case the FishingRod and FishHook similar to my Clawshot and its head to get the theory.

BTW: How would I add a signature to my posts?

Edited July 26, 2018 by _Cruelar_

_Cruelar_ · July 26, 2018

I feel pretty dumb to ask but how get I an Entity by its UUID as world only has the method getPlayerEntitiesByUUID()

Animefan8888 · July 26, 2018

40 minutes ago, _Cruelar_ said:

BTW: How would I add a signature to my posts?

You go into your account settings.

13 minutes ago, _Cruelar_ said:

I feel pretty dumb to ask but how get I an Entity by its UUID as world only has the method getPlayerEntitiesByUUID()

You'll have to loop through the loadedEntityList and look for it yourself. Since there is no method available already.

_Cruelar_ · July 26, 2018

I've wrote a method to find the Entity

Code

package com.cruelar.cruelars_triforcemod.items;

import com.cruelar.cruelars_triforcemod.Cruelars_Triforcemod_Core;
import com.cruelar.cruelars_triforcemod.entities.projectiles.Clawshot_Head;
import com.cruelar.cruelars_triforcemod.inventory.cruelars_triforcemod;
import net.minecraft.client.renderer.block.model.ModelResourceLocation;
import net.minecraft.entity.Entity;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.IItemPropertyGetter;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.util.ActionResult;
import net.minecraft.util.EnumActionResult;
import net.minecraft.util.EnumHand;
import net.minecraft.util.ResourceLocation;
import net.minecraft.world.World;
import net.minecraftforge.client.model.ModelLoader;
import net.minecraftforge.fml.relauncher.Side;
import net.minecraftforge.fml.relauncher.SideOnly;

import javax.annotation.Nullable;
import java.util.List;
import java.util.Objects;
import java.util.UUID;

public class Clawshot_TP extends Item {

    public Clawshot_TP(){
        this.setCreativeTab(cruelars_triforcemod.CRUELARS_TRIFORCEMOD);
        this.setRegistryName("clawshot_tp");
        this.setUnlocalizedName(Cruelars_Triforcemod_Core.MODID+".clawshot_tp");
        this.addPropertyOverride(new ResourceLocation("cast"), new IItemPropertyGetter() {
            @SideOnly(Side.CLIENT)
            public float apply(ItemStack p_apply_1_, @Nullable World p_apply_2_, @Nullable EntityLivingBase p_apply_3_) {
                if (p_apply_3_ == null) {
                    return 0.0F;
                } else {
                    boolean lvt_4_1_ = p_apply_3_.getHeldItemMainhand() == p_apply_1_;
                    boolean lvt_5_1_ = p_apply_3_.getHeldItemOffhand() == p_apply_1_;
                    if (p_apply_3_.getHeldItemMainhand().getItem() instanceof Clawshot_TP) {
                        lvt_5_1_ = false;
                    }

                    return (lvt_4_1_ || lvt_5_1_) && p_apply_3_ instanceof EntityPlayer && ((EntityPlayer)p_apply_3_).fishEntity != null ? 1.0F : 0.0F;
                }
            }
        });
    }

    @Override
    public ActionResult<ItemStack> onItemRightClick(World world, EntityPlayer entityPlayer,EnumHand enumHand) {
        ItemStack itemStack = entityPlayer.getHeldItem(enumHand);
        Clawshot_Head clawshot_head = new Clawshot_Head(world, entityPlayer);
        if (!world.isRemote) {
            if (!this.getTagCompoundSafe(itemStack).hasKey("shot") || !this.getTagCompoundSafe(itemStack).getBoolean("shot") || this.getEntityByUUID(Objects.requireNonNull(this.getTagCompoundSafe(itemStack).getUniqueId("head")),world,itemStack).isDead) {
                world.spawnEntity(clawshot_head);
                this.getTagCompoundSafe(itemStack).setBoolean("shot",true);
                this.getTagCompoundSafe(itemStack).setUniqueId("head",clawshot_head.getUniqueID());
            } else {
                clawshot_head.setDead();
                this.getTagCompoundSafe(itemStack).setBoolean("shot",false);
            }
        }
        return new ActionResult(EnumActionResult.SUCCESS,itemStack);
    }

    @SideOnly(Side.CLIENT)
    public void initModel(){
        ModelLoader.setCustomModelResourceLocation(this, 0, new ModelResourceLocation(Objects.requireNonNull(getRegistryName()), "inventory"));
    }

    private NBTTagCompound getTagCompoundSafe(ItemStack stack) {
        NBTTagCompound tagCompound = stack.getTagCompound();
        if (tagCompound == null) {
            tagCompound = new NBTTagCompound();
            stack.setTagCompound(tagCompound);
        }
        return tagCompound;
    }

    public Entity getEntityByUUID(UUID entityUUID, World worldIn, ItemStack itemStack){
        int lenght =worldIn.getLoadedEntityList().size();
        List<Entity> loadedEntityList= worldIn.getLoadedEntityList();
        Entity foundEntity = null;
        for (int i = 0;i<lenght;i++){
            if (loadedEntityList.get(i).getUniqueID()==entityUUID){
                foundEntity = loadedEntityList.get(i);
            }
        }
        return foundEntity;
    }
}

Error:

Spoiler

[22:18:22] [Server thread/FATAL] [net.minecraft.server.MinecraftServer]: Error executing task
java.util.concurrent.ExecutionException: java.lang.NullPointerException
   at java.util.concurrent.FutureTask.report(FutureTask.java:122) ~[?:1.8.0_152]
   at java.util.concurrent.FutureTask.get(FutureTask.java:192) ~[?:1.8.0_152]
   at net.minecraft.util.Util.runTask(Util.java:54) [Util.class:?]
   at net.minecraft.server.MinecraftServer.updateTimeLightAndEntities(MinecraftServer.java:798) [MinecraftServer.class:?]
   at net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:743) [MinecraftServer.class:?]
   at net.minecraft.server.integrated.IntegratedServer.tick(IntegratedServer.java:192) [IntegratedServer.class:?]
   at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:592) [MinecraftServer.class:?]
   at java.lang.Thread.run(Thread.java:748) [?:1.8.0_152]
Caused by: java.lang.NullPointerException
   at com.cruelar.cruelars_triforcemod.items.Clawshot_TP.onItemRightClick(Clawshot_TP.java:57) ~[Clawshot_TP.class:?]
   at net.minecraft.item.ItemStack.useItemRightClick(ItemStack.java:234) ~[ItemStack.class:?]
   at net.minecraft.server.management.PlayerInteractionManager.processRightClick(PlayerInteractionManager.java:384) ~[PlayerInteractionManager.class:?]
   at net.minecraft.network.NetHandlerPlayServer.processTryUseItem(NetHandlerPlayServer.java:794) ~[NetHandlerPlayServer.class:?]
   at net.minecraft.network.play.client.CPacketPlayerTryUseItem.processPacket(CPacketPlayerTryUseItem.java:43) ~[CPacketPlayerTryUseItem.class:?]
   at net.minecraft.network.play.client.CPacketPlayerTryUseItem.processPacket(CPacketPlayerTryUseItem.java:9) ~[CPacketPlayerTryUseItem.class:?]
   at net.minecraft.network.PacketThreadUtil$1.run(PacketThreadUtil.java:21) ~[PacketThreadUtil$1.class:?]
   at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[?:1.8.0_152]
   at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[?:1.8.0_152]
   at net.minecraft.util.Util.runTask(Util.java:53) ~[Util.class:?]
   ... 5 more

Still the Entity respawns after being setDead. What am I missing?

Animefan8888 · July 26, 2018

4 minutes ago, _Cruelar_ said:

Error:

What happens in the if statement if the compound doesn't have a UUID saved to it. Hint: The entity will be null.

5 minutes ago, _Cruelar_ said:

Still the Entity respawns after being setDead. What am I missing?

clawshot_head.setDead();

What does this do? It references a new Entity just created in this method, not yet spawned in the world, and sets it to be dead.

What it should do is gets the entity from the nbt and set that entity to be dead.

_Cruelar_ · July 27, 2018

12 hours ago, Animefan8888 said:
13 hours ago, _Cruelar_ said:

Still the Entity respawns after being setDead. What am I missing?
clawshot_head.setDead();
What does this do? It references a new Entity just created in this method, not yet spawned in the world, and sets it to be dead.

What it should do is gets the entity from the nbt and set that entity to be dead.

Ok, I should give more details about that:

The Entity is spawned correctly. Check.

It lives a certain time. Check. (Not exactly what I want it to do but I should already know how to fix that)

Then it dies (NOT by Right clicking again). Check

And Respawns at its original spawnPos and moves again.

But you're right about the error in the code,will fix that.

_Cruelar_ · July 27, 2018

Updated code of Item(doesn't results in NPE anymore):

package com.cruelar.cruelars_triforcemod.items;

import com.cruelar.cruelars_triforcemod.Cruelars_Triforcemod_Core;
import com.cruelar.cruelars_triforcemod.entities.projectiles.Clawshot_Head;
import com.cruelar.cruelars_triforcemod.inventory.cruelars_triforcemod;
import net.minecraft.client.renderer.block.model.ModelResourceLocation;
import net.minecraft.entity.Entity;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.IItemPropertyGetter;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.util.ActionResult;
import net.minecraft.util.EnumActionResult;
import net.minecraft.util.EnumHand;
import net.minecraft.util.ResourceLocation;
import net.minecraft.world.World;
import net.minecraftforge.client.model.ModelLoader;
import net.minecraftforge.fml.relauncher.Side;
import net.minecraftforge.fml.relauncher.SideOnly;

import javax.annotation.Nullable;
import java.util.List;
import java.util.Objects;
import java.util.UUID;

public class Clawshot_TP extends Item {

    public Clawshot_TP(){
        this.setCreativeTab(cruelars_triforcemod.CRUELARS_TRIFORCEMOD);
        this.setRegistryName("clawshot_tp");
        this.setUnlocalizedName(Cruelars_Triforcemod_Core.MODID+".clawshot_tp");
        this.addPropertyOverride(new ResourceLocation("cast"), new IItemPropertyGetter() {
            @SideOnly(Side.CLIENT)
            public float apply(ItemStack p_apply_1_, @Nullable World p_apply_2_, @Nullable EntityLivingBase p_apply_3_) {
                if (p_apply_3_ == null) {
                    return 0.0F;
                } else {
                    boolean lvt_4_1_ = p_apply_3_.getHeldItemMainhand() == p_apply_1_;
                    boolean lvt_5_1_ = p_apply_3_.getHeldItemOffhand() == p_apply_1_;
                    if (p_apply_3_.getHeldItemMainhand().getItem() instanceof Clawshot_TP) {
                        lvt_5_1_ = false;
                    }

                    return (lvt_4_1_ || lvt_5_1_) && p_apply_3_ instanceof EntityPlayer && ((EntityPlayer)p_apply_3_).fishEntity != null ? 1.0F : 0.0F;
                }
            }
        });
    }

    @Override
    public ActionResult<ItemStack> onItemRightClick(World world, EntityPlayer entityPlayer,EnumHand enumHand) {
        ItemStack itemStack = entityPlayer.getHeldItem(enumHand);
        Clawshot_Head clawshot_head = new Clawshot_Head(world, entityPlayer);
        if (!world.isRemote) {
            if (!this.getTagCompoundSafe(itemStack).hasKey("shot") || !this.getTagCompoundSafe(itemStack).getBoolean("shot") || this.getEntityByUUID(Objects.requireNonNull(this.getTagCompoundSafe(itemStack).getUniqueId("head")),world,itemStack)!=null && this.getEntityByUUID(Objects.requireNonNull(this.getTagCompoundSafe(itemStack).getUniqueId("head")),world,itemStack).isDead) {
                world.spawnEntity(clawshot_head);
                this.getTagCompoundSafe(itemStack).setBoolean("shot",true);
                this.getTagCompoundSafe(itemStack).setUniqueId("head",clawshot_head.getUniqueID());
            } else if (this.getEntityByUUID(this.getTagCompoundSafe(itemStack).getUniqueId("head"),world,itemStack)!=null){
                this.getEntityByUUID(this.getTagCompoundSafe(itemStack).getUniqueId("head"),world,itemStack).setDead();
                this.getTagCompoundSafe(itemStack).setBoolean("shot",false);
            }
        }
        return new ActionResult(EnumActionResult.SUCCESS,itemStack);
    }

    @SideOnly(Side.CLIENT)
    public void initModel(){
        ModelLoader.setCustomModelResourceLocation(this, 0, new ModelResourceLocation(Objects.requireNonNull(getRegistryName()), "inventory"));
    }

    private NBTTagCompound getTagCompoundSafe(ItemStack stack) {
        NBTTagCompound tagCompound = stack.getTagCompound();
        if (tagCompound == null) {
            tagCompound = new NBTTagCompound();
            stack.setTagCompound(tagCompound);
        }
        return tagCompound;
    }

    private Entity getEntityByUUID(UUID entityUUID, World worldIn, ItemStack itemStack){
        int lenght =worldIn.getLoadedEntityList().size();
        List<Entity> loadedEntityList= worldIn.getLoadedEntityList();
        Entity foundEntity = null;
        for (int i = 0;i<lenght;i++){
            if (loadedEntityList.get(i).getUniqueID()==entityUUID){
                foundEntity = loadedEntityList.get(i);
            }
        }
        return foundEntity;
    }
}

The Entity:

package com.cruelar.cruelars_triforcemod.entities.projectiles;

import io.netty.buffer.ByteBuf;
import net.minecraft.block.state.IBlockState;
import net.minecraft.entity.Entity;
import net.minecraft.entity.MoverType;
import net.minecraft.entity.item.EntityItem;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.network.datasync.DataParameter;
import net.minecraft.network.datasync.DataSerializers;
import net.minecraft.network.datasync.EntityDataManager;
import net.minecraft.util.ResourceLocation;
import net.minecraft.util.math.*;
import net.minecraft.world.World;
import net.minecraftforge.fml.common.registry.IEntityAdditionalSpawnData;
import net.minecraftforge.fml.relauncher.Side;
import net.minecraftforge.fml.relauncher.SideOnly;

import java.util.Iterator;
import java.util.List;

public class Clawshot_Head extends Entity implements IEntityAdditionalSpawnData{
    private EntityPlayer entityPlayer;
    public Entity caughtEntity;
    public Clawshot_Head.State currentState;
    private static final DataParameter<Integer> DATA_HOOKED_ENTITY;
    private boolean inGround;
    private int ticksInAir;
    private int ticksInGround;
    public static ResourceLocation RESOURCE_LOCATION=new ResourceLocation("cruelars_triforcemod:textures/entity/projectiles/clawshot_head.png");

    public Clawshot_Head(World world){
        super(world);
    }

    public Clawshot_Head(World world, EntityPlayer entityPlayer){
        super(world);
        this.init(entityPlayer);
        this.currentState = Clawshot_Head.State.FLYING;
        this.setPosition((double)entityPlayer.posX,(double)entityPlayer.posY+entityPlayer.getEyeHeight(),(double)entityPlayer.posZ);
        this.shoot(entityPlayer);
    }

    @SideOnly(Side.CLIENT)
    public Clawshot_Head(World world, EntityPlayer entityPlayer, double posX, double posY, double posZ) {
        super(world);
        this.init(entityPlayer);
        this.setPosition(posX,posY,posZ);
        this.prevPosX = this.posX;
        this.prevPosY = this.posY;
        this.prevPosZ = this.posZ;
    }

    public void notifyDataManagerChange(DataParameter<?> p_notifyDataManagerChange_1_) {
        if (DATA_HOOKED_ENTITY.equals(p_notifyDataManagerChange_1_)) {
            int i = (Integer)this.getDataManager().get(DATA_HOOKED_ENTITY);
            this.caughtEntity = i > 0 ? this.world.getEntityByID(i - 1) : null;
        }

        super.notifyDataManagerChange(p_notifyDataManagerChange_1_);
    }

    public void onUpdate()
    {
        super.onUpdate();
        if (this.entityPlayer == null)
        {
            this.setDead();
        }
        else if (this.world.isRemote)
        {
            if (this.inGround)
            {
                ++this.ticksInGround;
                motionX=0;
                motionY=0;
                motionZ=0;

                if (this.ticksInGround >= 1200)
                {
                    this.setDead();
                    return;
                }
            }
            if(this.getDistance(entityPlayer)>=64){
                this.setDead();
                return;
            }
            BlockPos blockpos = new BlockPos(this);
            IBlockState iblockstate = this.world.getBlockState(blockpos);
            if (this.currentState == Clawshot_Head.State.FLYING)
            {
                if (this.caughtEntity != null)
                {
                    this.motionX = 0.0D;
                    this.motionY = 0.0D;
                    this.motionZ = 0.0D;
                    this.currentState = Clawshot_Head.State.HOOKED_IN_ENTITY;
                    return;
                }

                if (!this.world.isRemote)
                {
                    this.checkCollision();
                }

                if (!this.inGround && !this.onGround && !this.collidedHorizontally)
                {
                    ++this.ticksInAir;
                }
                else
                {
                    this.ticksInAir = 0;
                    this.motionX = 0.0D;
                    this.motionY = 0.0D;
                    this.motionZ = 0.0D;
                }
                if (ticksInAir>=100){
                    this.setDead();
                    return;
                }
            }
            else
            {
                if (this.currentState == Clawshot_Head.State.HOOKED_IN_ENTITY)
                {
                    if (this.caughtEntity != null)
                    {
                        if (this.caughtEntity.isDead)
                        {
                            this.caughtEntity = null;
                            this.currentState = Clawshot_Head.State.FLYING;
                        }
                        else
                        {
                            this.posX = this.caughtEntity.posX;
                            double d2 = (double)this.caughtEntity.height;
                            this.posY = this.caughtEntity.getEntityBoundingBox().minY + d2 * 0.8D;
                            this.posZ = this.caughtEntity.posZ;
                            this.setPosition(this.posX, this.posY, this.posZ);
                        }
                    }

                    return;
                }
            }

            this.move(MoverType.SELF, this.motionX, this.motionY, this.motionZ);
            this.updateRotation();
            this.setPosition(this.posX, this.posY, this.posZ);
        }
    }

    private void updateRotation()
    {
        float f = MathHelper.sqrt(this.motionX * this.motionX + this.motionZ * this.motionZ);
        this.rotationYaw = (float)(MathHelper.atan2(this.motionX, this.motionZ) * (180D / Math.PI));

        for (this.rotationPitch = (float)(MathHelper.atan2(this.motionY, (double)f) * (180D / Math.PI)); this.rotationPitch - this.prevRotationPitch < -180.0F; this.prevRotationPitch -= 360.0F)
        {

        }

        while (this.rotationPitch - this.prevRotationPitch >= 180.0F)
        {
            this.prevRotationPitch += 360.0F;
        }

        while (this.rotationYaw - this.prevRotationYaw < -180.0F)
        {
            this.prevRotationYaw -= 360.0F;
        }

        while (this.rotationYaw - this.prevRotationYaw >= 180.0F)
        {
            this.prevRotationYaw += 360.0F;
        }

        this.rotationPitch = this.prevRotationPitch + (this.rotationPitch - this.prevRotationPitch) * 0.2F;
        this.rotationYaw = this.prevRotationYaw + (this.rotationYaw - this.prevRotationYaw) * 0.2F;
    }

    public void shoot(Entity entity) {
        System.out.println(entity);
        this.motionX=0.6D*entity.getLookVec().x;
        this.motionY=0.6D*entity.getLookVec().y;
        this.motionZ=0.6D*entity.getLookVec().z;

    }

    public void shoot(double p_shoot_1_, double p_shoot_3_, double p_shoot_5_, float p_shoot_7_, float p_shoot_8_){}

    public int handleHookRetraction()
    {
        if (!this.world.isRemote && this.entityPlayer != null)
        {
            int i = 0;
            if (this.caughtEntity != null)
            {
                this.bringInHookedEntity();
                this.world.setEntityState(this, (byte)31);
                i = this.caughtEntity instanceof EntityItem ? 3 : 5;
            }
            else if (this.inGround)
            {
                i = 2;
            }

            this.setDead();
            return i;
        }
        else
        {
            return 0;
        }
    }

    protected void bringInHookedEntity()
    {
        if (this.entityPlayer != null)
        {
            double d0 = this.entityPlayer.posX - this.posX;
            double d1 = this.entityPlayer.posY - this.posY;
            double d2 = this.entityPlayer.posZ - this.posZ;
            double d3 = 0.1D;
            this.caughtEntity.motionX += d0 * 0.1D;
            this.caughtEntity.motionY += d1 * 0.1D;
            this.caughtEntity.motionZ += d2 * 0.1D;
        }
    }

    public void setDead()
    {
        super.setDead();
    }

    public EntityPlayer getAngler()
    {
        return this.entityPlayer;
    }

    private void init(EntityPlayer p_init_1_) {
        this.setSize(0.25F, 0.25F);
        this.ignoreFrustumCheck = true;
        this.entityPlayer = p_init_1_;
    }

    private void checkCollision() {
        Vec3d vec3d = new Vec3d(this.posX, this.posY, this.posZ);
        Vec3d vec3d1 = new Vec3d(this.posX + this.motionX, this.posY + this.motionY, this.posZ + this.motionZ);
        RayTraceResult raytraceresult = this.world.rayTraceBlocks(vec3d, vec3d1, false, true, false);
        vec3d = new Vec3d(this.posX, this.posY, this.posZ);
        vec3d1 = new Vec3d(this.posX + this.motionX, this.posY + this.motionY, this.posZ + this.motionZ);
        if (raytraceresult != null) {
            vec3d1 = new Vec3d(raytraceresult.hitVec.x, raytraceresult.hitVec.y, raytraceresult.hitVec.z);
            this.motionX=0;
            this.motionY=0;
            this.motionZ=0;
            entityPlayer.posX=this.posX;
            entityPlayer.posY=this.posY;
            entityPlayer.posZ=this.posZ;
        }

        Entity entity = null;
        List<Entity> list = this.world.getEntitiesWithinAABBExcludingEntity(this, this.getEntityBoundingBox().expand(this.motionX, this.motionY, this.motionZ).grow(1.0D));
        double d0 = 0.0D;
        Iterator var8 = list.iterator();

        while(true) {
            Entity entity1;
            double d1;
            do {
                RayTraceResult raytraceresult1;
                do {
                    do {
                        do {
                            if (!var8.hasNext()) {
                                if (entity != null) {
                                    raytraceresult = new RayTraceResult(entity);
                                }

                                if (raytraceresult != null && raytraceresult.typeOfHit != RayTraceResult.Type.MISS) {
                                    if (raytraceresult.typeOfHit == RayTraceResult.Type.ENTITY) {
                                        this.caughtEntity = raytraceresult.entityHit;
                                        this.setHookedEntity();
                                    } else {
                                        this.inGround = true;
                                    }
                                }

                                return;
                            }

                            entity1 = (Entity)var8.next();
                        } while(!this.canBeHooked(entity1));
                    } while(entity1 == this.entityPlayer && this.ticksInAir < 5);

                    AxisAlignedBB axisalignedbb = entity1.getEntityBoundingBox().grow(0.30000001192092896D);
                    raytraceresult1 = axisalignedbb.calculateIntercept(vec3d, vec3d1);
                } while(raytraceresult1 == null);

                d1 = vec3d.squareDistanceTo(raytraceresult1.hitVec);
            } while(d1 >= d0 && d0 != 0.0D);

            entity = entity1;
            d0 = d1;
        }
    }

    private void setHookedEntity() {
        this.getDataManager().set(DATA_HOOKED_ENTITY, this.caughtEntity.getEntityId() + 1);
    }

    protected boolean canBeHooked(Entity p_canBeHooked_1_) {
        return p_canBeHooked_1_.canBeCollidedWith() || p_canBeHooked_1_ instanceof EntityItem;
    }

    protected void entityInit() {
        this.getDataManager().register(DATA_HOOKED_ENTITY, 0);
    }

    @Override
    protected void readEntityFromNBT(NBTTagCompound nbtTagCompound) {

    }

    @Override
    protected void writeEntityToNBT(NBTTagCompound nbtTagCompound) {

    }

    static {
        DATA_HOOKED_ENTITY = EntityDataManager.createKey(Clawshot_Head.class, DataSerializers.VARINT);
    }

    @Override
    public void writeSpawnData(ByteBuf buffer) {
        buffer.writeBoolean(entityPlayer==null);
        if (entityPlayer!=null) {
            buffer.writeInt(entityPlayer.getEntityId());
        }
    }

    @Override
    public void readSpawnData(ByteBuf additionalData) {
        boolean nullPlayer = additionalData.readBoolean();
        if (!nullPlayer){
            EntityPlayer entityByID=(EntityPlayer) world.getEntityByID(additionalData.readInt());
            if (entityByID!=null){
                entityPlayer=entityByID;
            }
            this.shoot(entityPlayer);
        }
    }

    static enum State {
        FLYING,
        HOOKED_IN_ENTITY;

        private State() {
        }
    }
}

Animefan8888 · July 27, 2018

8 hours ago, _Cruelar_ said:


else if (this.world.isRemote) { if (this.inGround) { ++this.ticksInGround; motionX=0; motionY=0; motionZ=0; if (this.ticksInGround >= 1200) { this.setDead(); return; } }

In your update method you only set it dead on the client.

_Cruelar_ · July 27, 2018

With this:

public void onUpdate()
    {
        super.onUpdate();
        if (this.entityPlayer == null)
        {
            this.setDead();
        }
        else if (this.world.isRemote)
        {
            if (this.inGround) {
                ++this.ticksInGround;
                motionX = 0;
                motionY = 0;
                motionZ = 0;
            }


            if(this.getDistance(entityPlayer)>=64){
                this.setDead();
                return;
            }
            BlockPos blockpos = new BlockPos(this);
            IBlockState iblockstate = this.world.getBlockState(blockpos);
            if (this.currentState == Clawshot_Head.State.FLYING)
            {
                if (this.caughtEntity != null)
                {
                    this.motionX = 0.0D;
                    this.motionY = 0.0D;
                    this.motionZ = 0.0D;
                    this.currentState = Clawshot_Head.State.HOOKED_IN_ENTITY;
                    return;
                }

                if (!this.world.isRemote)
                {
                    this.checkCollision();
                }

                if (!this.inGround && !this.onGround && !this.collidedHorizontally)
                {
                    ++this.ticksInAir;
                }
                else
                {
                    this.ticksInAir = 0;
                    this.motionX = 0.0D;
                    this.motionY = 0.0D;
                    this.motionZ = 0.0D;
                }

            }
            else
            {
                if (this.currentState == Clawshot_Head.State.HOOKED_IN_ENTITY)
                {
                    if (this.caughtEntity != null)
                    {
                        if (this.caughtEntity.isDead)
                        {
                            this.caughtEntity = null;
                            this.currentState = Clawshot_Head.State.FLYING;
                        }
                        else
                        {
                            this.posX = this.caughtEntity.posX;
                            double d2 = (double)this.caughtEntity.height;
                            this.posY = this.caughtEntity.getEntityBoundingBox().minY + d2 * 0.8D;
                            this.posZ = this.caughtEntity.posZ;
                            this.setPosition(this.posX, this.posY, this.posZ);
                        }
                    }

                    return;
                }
            }

            this.move(MoverType.SELF, this.motionX, this.motionY, this.motionZ);
            this.updateRotation();
            this.setPosition(this.posX, this.posY, this.posZ);
        }
        if (this.ticksInGround >= 1200)
        {
            this.setDead();
        }
        if (ticksInAir>=200){
            this.setDead();
            return;
        }
    }

I give the command to kill it on both sides,am I right? So why it doesn't works?

Also setting the motion to o doesn't works. Is this also a problem with sides.

Animefan8888 · July 27, 2018

11 minutes ago, _Cruelar_ said:

else if (this.world.isRemote)

This line right here says is this a client world?

_Cruelar_ · July 27, 2018

Yes.

Animefan8888 · July 27, 2018

3 minutes ago, _Cruelar_ said:

Yes.

And then it does a few things with if it's in the ground and then sets itself to be dead, but only if the above is true. Which setDead are you having a problem with exactly?

Edited July 27, 2018 by Animefan8888

_Cruelar_ · July 27, 2018

I'll make breakpoints and tell you

_Cruelar_ · July 27, 2018

This is interesting. None of my Breakpoints responds.

Code:

package com.cruelar.cruelars_triforcemod.entities.projectiles;

import io.netty.buffer.ByteBuf;
import net.minecraft.block.state.IBlockState;
import net.minecraft.entity.Entity;
import net.minecraft.entity.MoverType;
import net.minecraft.entity.item.EntityItem;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.ItemStack;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.network.datasync.DataParameter;
import net.minecraft.network.datasync.DataSerializers;
import net.minecraft.network.datasync.EntityDataManager;
import net.minecraft.util.ResourceLocation;
import net.minecraft.util.math.*;
import net.minecraft.world.World;
import net.minecraftforge.fml.common.registry.IEntityAdditionalSpawnData;
import net.minecraftforge.fml.relauncher.Side;
import net.minecraftforge.fml.relauncher.SideOnly;

import java.util.Iterator;
import java.util.List;
import java.util.UUID;

public class Clawshot_Head extends Entity implements IEntityAdditionalSpawnData{
    private UUID entityPlayer;
    public Entity caughtEntity;
    public Clawshot_Head.State currentState;
    private static final DataParameter<Integer> DATA_HOOKED_ENTITY;
    private boolean inGround;
    private int ticksInAir;
    private int ticksInGround;
    public static ResourceLocation RESOURCE_LOCATION=new ResourceLocation("cruelars_triforcemod:textures/entity/projectiles/clawshot_head.png");

    public Clawshot_Head(World world){
        super(world);
    }

    public Clawshot_Head(World world, EntityPlayer entityPlayer){
        super(world);
        this.init(entityPlayer);
        this.currentState = Clawshot_Head.State.FLYING;
        this.setPosition((double)entityPlayer.posX,(double)entityPlayer.posY+entityPlayer.getEyeHeight(),(double)entityPlayer.posZ);
        this.shoot(entityPlayer);
    }

    @SideOnly(Side.CLIENT)
    public Clawshot_Head(World world, EntityPlayer entityPlayer, double posX, double posY, double posZ) {
        super(world);
        this.init(entityPlayer);
        this.setPosition(posX,posY,posZ);
        this.prevPosX = this.posX;
        this.prevPosY = this.posY;
        this.prevPosZ = this.posZ;
    }

    public void notifyDataManagerChange(DataParameter<?> p_notifyDataManagerChange_1_) {
        if (DATA_HOOKED_ENTITY.equals(p_notifyDataManagerChange_1_)) {
            int i = (Integer)this.getDataManager().get(DATA_HOOKED_ENTITY);
            this.caughtEntity = i > 0 ? this.world.getEntityByID(i - 1) : null;
        }

        super.notifyDataManagerChange(p_notifyDataManagerChange_1_);
    }

    public void onUpdate()
    {
        super.onUpdate();
        if (this.entityPlayer == null)
        {
            this.setDead();
            System.out.println("ln:69 got called");
        }
        else if (this.world.isRemote)
        {
            if (this.inGround) {
                ++this.ticksInGround;
                motionX = 0;
                motionY = 0;
                motionZ = 0;
            }

            if(this.collidedHorizontally){
                motionX=0;
                motionY=0;
                motionZ=0;
                ++this.ticksInGround;
            }

            if(this.getDistance(getEntityByUUID(entityPlayer,world))>=64){
                this.setDead();
                System.out.println("ln:89 got called");
            }

            BlockPos blockpos = new BlockPos(this);
            IBlockState iblockstate = this.world.getBlockState(blockpos);
            if (this.currentState == Clawshot_Head.State.FLYING)
            {
                if (this.caughtEntity != null)
                {
                    this.motionX = 0.0D;
                    this.motionY = 0.0D;
                    this.motionZ = 0.0D;
                    this.currentState = Clawshot_Head.State.HOOKED_IN_ENTITY;
                    return;
                }

                if (!this.world.isRemote)
                {
                    this.checkCollision();
                }

                if (!this.inGround && !this.onGround && !this.collidedHorizontally)
                {
                    ++this.ticksInAir;
                }
                else
                {
                    this.ticksInAir = 0;
                    this.motionX = 0.0D;
                    this.motionY = 0.0D;
                    this.motionZ = 0.0D;
                }

            }
            else
            {
                if (this.currentState == Clawshot_Head.State.HOOKED_IN_ENTITY)
                {
                    if (this.caughtEntity != null)
                    {
                        if (this.caughtEntity.isDead)
                        {
                            this.caughtEntity = null;
                            this.currentState = Clawshot_Head.State.FLYING;
                        }
                        else
                        {
                            this.posX = this.caughtEntity.posX;
                            double d2 = (double)this.caughtEntity.height;
                            this.posY = this.caughtEntity.getEntityBoundingBox().minY + d2 * 0.8D;
                            this.posZ = this.caughtEntity.posZ;
                            this.setPosition(this.posX, this.posY, this.posZ);
                        }
                    }

                    return;
                }
            }

            this.move(MoverType.SELF, this.motionX, this.motionY, this.motionZ);
            this.updateRotation();
            this.setPosition(this.posX, this.posY, this.posZ);
        }
        if (this.ticksInGround >= 1200)
        {
            this.setDead();
            System.out.println("ln:155 got called");
        }
        if (ticksInAir>=200){
            this.setDead();
            System.out.println("ln:159 got called");
        }

    }

    private void updateRotation()
    {
        float f = MathHelper.sqrt(this.motionX * this.motionX + this.motionZ * this.motionZ);
        this.rotationYaw = (float)(MathHelper.atan2(this.motionX, this.motionZ) * (180D / Math.PI));

        for (this.rotationPitch = (float)(MathHelper.atan2(this.motionY, (double)f) * (180D / Math.PI)); this.rotationPitch - this.prevRotationPitch < -180.0F; this.prevRotationPitch -= 360.0F)
        {

        }

        while (this.rotationPitch - this.prevRotationPitch >= 180.0F)
        {
            this.prevRotationPitch += 360.0F;
        }

        while (this.rotationYaw - this.prevRotationYaw < -180.0F)
        {
            this.prevRotationYaw -= 360.0F;
        }

        while (this.rotationYaw - this.prevRotationYaw >= 180.0F)
        {
            this.prevRotationYaw += 360.0F;
        }

        this.rotationPitch = this.prevRotationPitch + (this.rotationPitch - this.prevRotationPitch) * 0.2F;
        this.rotationYaw = this.prevRotationYaw + (this.rotationYaw - this.prevRotationYaw) * 0.2F;
    }

    public void shoot(Entity entity) {

        System.out.println(entity);
        this.motionX=0.6D*entity.getLookVec().x;
        this.motionY=0.6D*entity.getLookVec().y;
        this.motionZ=0.6D*entity.getLookVec().z;

    }

    public void shoot(double p_shoot_1_, double p_shoot_3_, double p_shoot_5_, float p_shoot_7_, float p_shoot_8_){}

    public int handleHookRetraction()
    {
        if (!this.world.isRemote && this.entityPlayer != null)
        {
            int i = 0;
            if (this.caughtEntity != null)
            {
                this.bringInHookedEntity();
                this.world.setEntityState(this, (byte)31);
                i = this.caughtEntity instanceof EntityItem ? 3 : 5;
            }
            else if (this.inGround)
            {
                i = 2;
            }

            this.setDead();
            return i;
        }
        else
        {
            return 0;
        }
    }

    protected void bringInHookedEntity()
    {
        if (this.getEntityByUUID(entityPlayer,world) != null)
        {
            double d0 = this.getEntityByUUID(entityPlayer,world).posX - this.posX;
            double d1 = this.getEntityByUUID(entityPlayer,world).posY - this.posY;
            double d2 = this.getEntityByUUID(entityPlayer,world).posZ - this.posZ;
            double d3 = 0.1D;
            this.caughtEntity.motionX += d0 * 0.1D;
            this.caughtEntity.motionY += d1 * 0.1D;
            this.caughtEntity.motionZ += d2 * 0.1D;
        }
    }

    public void setDead()
    {
        super.setDead();
    }

    public EntityPlayer getAngler()
    {
        return this.getEntityByUUID(entityPlayer,this.world);
    }

    private EntityPlayer getEntityByUUID(UUID entityUUID, World worldIn){
        int lenght =worldIn.getLoadedEntityList().size();
        List<Entity> loadedEntityList= worldIn.getLoadedEntityList();
        EntityPlayer foundEntity = null;
        for (int i = 0;i<lenght;i++){
            if (loadedEntityList.get(i).getUniqueID()==entityUUID){
                if (loadedEntityList.get(i) instanceof EntityPlayer) {
                    foundEntity = (EntityPlayer) loadedEntityList.get(i);
                }
            }
        }
        return foundEntity;
    }

    private void init(EntityPlayer p_init_1_) {
        this.setSize(0.25F, 0.25F);
        this.ignoreFrustumCheck = true;
        this.entityPlayer = p_init_1_.getUniqueID();
    }

    private void checkCollision() {
        Vec3d vec3d = new Vec3d(this.posX, this.posY, this.posZ);
        Vec3d vec3d1 = new Vec3d(this.posX + this.motionX, this.posY + this.motionY, this.posZ + this.motionZ);
        RayTraceResult raytraceresult = this.world.rayTraceBlocks(vec3d, vec3d1, false, true, false);
        vec3d = new Vec3d(this.posX, this.posY, this.posZ);
        vec3d1 = new Vec3d(this.posX + this.motionX, this.posY + this.motionY, this.posZ + this.motionZ);
        if (raytraceresult != null) {
            vec3d1 = new Vec3d(raytraceresult.hitVec.x, raytraceresult.hitVec.y, raytraceresult.hitVec.z);
            this.motionX=0;
            this.motionY=0;
            this.motionZ=0;
            getEntityByUUID(entityPlayer,this.world).posX=this.posX;
            getEntityByUUID(entityPlayer,this.world).posY=this.posY;
            getEntityByUUID(entityPlayer,this.world).posZ=this.posZ;
        }

        Entity entity = null;
        List<Entity> list = this.world.getEntitiesWithinAABBExcludingEntity(this, this.getEntityBoundingBox().expand(this.motionX, this.motionY, this.motionZ).grow(1.0D));
        double d0 = 0.0D;
        Iterator var8 = list.iterator();

        while(true) {
            Entity entity1;
            double d1;
            do {
                RayTraceResult raytraceresult1;
                do {
                    do {
                        do {
                            if (!var8.hasNext()) {
                                if (entity != null) {
                                    raytraceresult = new RayTraceResult(entity);
                                }

                                if (raytraceresult != null && raytraceresult.typeOfHit != RayTraceResult.Type.MISS) {
                                    if (raytraceresult.typeOfHit == RayTraceResult.Type.ENTITY) {
                                        this.caughtEntity = raytraceresult.entityHit;
                                        this.setHookedEntity();
                                    } else {
                                        this.inGround = true;
                                    }
                                }

                                return;
                            }

                            entity1 = (Entity)var8.next();
                        } while(!this.canBeHooked(entity1));
                    } while(entity1 == this.getEntityByUUID(entityPlayer,this.world) && this.ticksInAir < 5);

                    AxisAlignedBB axisalignedbb = entity1.getEntityBoundingBox().grow(0.30000001192092896D);
                    raytraceresult1 = axisalignedbb.calculateIntercept(vec3d, vec3d1);
                } while(raytraceresult1 == null);

                d1 = vec3d.squareDistanceTo(raytraceresult1.hitVec);
            } while(d1 >= d0 && d0 != 0.0D);

            entity = entity1;
            d0 = d1;
        }
    }

    private void setHookedEntity() {
        this.getDataManager().set(DATA_HOOKED_ENTITY, this.caughtEntity.getEntityId() + 1);
    }

    protected boolean canBeHooked(Entity p_canBeHooked_1_) {
        return p_canBeHooked_1_.canBeCollidedWith() || p_canBeHooked_1_ instanceof EntityItem;
    }

    protected void entityInit() {
        this.getDataManager().register(DATA_HOOKED_ENTITY, 0);
    }

    @Override
    protected void readEntityFromNBT(NBTTagCompound nbtTagCompound) {

    }

    @Override
    protected void writeEntityToNBT(NBTTagCompound nbtTagCompound) {

    }

    static {
        DATA_HOOKED_ENTITY = EntityDataManager.createKey(Clawshot_Head.class, DataSerializers.VARINT);
    }

    @Override
    public void writeSpawnData(ByteBuf buffer) {
        buffer.writeBoolean(getEntityByUUID(entityPlayer,this.world)==null);
        if (getEntityByUUID(entityPlayer,this.world)!=null) {
            buffer.writeInt(getEntityByUUID(entityPlayer,this.world).getEntityId());
        }
    }

    @Override
    public void readSpawnData(ByteBuf additionalData) {
        boolean nullPlayer = additionalData.readBoolean();
        if (!nullPlayer){
            EntityPlayer entityByID=(EntityPlayer) world.getEntityByID(additionalData.readInt());
            if (entityByID!=null){
                entityPlayer=entityByID.getUniqueID();
            }
            this.shoot(getEntityByUUID(entityPlayer,this.world));
        }
    }

    static enum State {
        FLYING,
        HOOKED_IN_ENTITY;

        private State() {
        }
    }
}

I changed the code to mainly use the UUID of the Player after thinking over Problematic code #9

Didn't solved the Problem though

_Cruelar_ · July 28, 2018

I made some changes to improve its behavior. But Still it dies after a certain amount of time that static. Also it then still respawns with the same motion speed as the moment it died.

Updated code:

package com.cruelar.cruelars_triforcemod.entities.projectiles;

import io.netty.buffer.ByteBuf;
import net.minecraft.block.state.IBlockState;
import net.minecraft.entity.Entity;
import net.minecraft.entity.MoverType;
import net.minecraft.entity.item.EntityItem;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.ItemStack;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.network.datasync.DataParameter;
import net.minecraft.network.datasync.DataSerializers;
import net.minecraft.network.datasync.EntityDataManager;
import net.minecraft.util.ResourceLocation;
import net.minecraft.util.math.*;
import net.minecraft.world.World;
import net.minecraftforge.fml.common.registry.IEntityAdditionalSpawnData;
import net.minecraftforge.fml.relauncher.Side;
import net.minecraftforge.fml.relauncher.SideOnly;

import java.util.Iterator;
import java.util.List;
import java.util.UUID;

public class Clawshot_Head extends Entity implements IEntityAdditionalSpawnData{
    private UUID entityPlayer;
    public Entity caughtEntity;
    public Clawshot_Head.State currentState;
    private static final DataParameter<Integer> DATA_HOOKED_ENTITY;
    private boolean inGround;
    private int ticksInAir;
    private int ticksInGround;
    public static ResourceLocation RESOURCE_LOCATION=new ResourceLocation("cruelars_triforcemod:textures/entity/projectiles/clawshot_head.png");

    public Clawshot_Head(World world){
        super(world);
    }

    public Clawshot_Head(World world, EntityPlayer entityPlayer){
        super(world);
        this.init(entityPlayer);
        this.currentState = Clawshot_Head.State.FLYING;
        this.setPosition((double)entityPlayer.posX,(double)entityPlayer.posY+entityPlayer.getEyeHeight(),(double)entityPlayer.posZ);
        this.shoot(entityPlayer);
        this.setNoGravity(true);
    }

    @SideOnly(Side.CLIENT)
    public Clawshot_Head(World world, EntityPlayer entityPlayer, double posX, double posY, double posZ) {
        super(world);
        this.init(entityPlayer);
        this.setPosition(posX,posY,posZ);
        this.prevPosX = this.posX;
        this.prevPosY = this.posY;
        this.prevPosZ = this.posZ;
    }

    public void notifyDataManagerChange(DataParameter<?> p_notifyDataManagerChange_1_) {
        if (DATA_HOOKED_ENTITY.equals(p_notifyDataManagerChange_1_)) {
            int i = (Integer)this.getDataManager().get(DATA_HOOKED_ENTITY);
            this.caughtEntity = i > 0 ? this.world.getEntityByID(i - 1) : null;
        }

        super.notifyDataManagerChange(p_notifyDataManagerChange_1_);
    }

    public void onUpdate()
    {
        super.onUpdate();
        if (this.entityPlayer == null)
        {
            System.out.println("ln:70 got called");
            this.setDead();

        }
        else if (this.world.isRemote)
        {
            if (this.inGround) {
                ++this.ticksInGround;
                motionX = 0;
                motionY = 0;
                motionZ = 0;
            }

            if(this.collidedHorizontally){
                motionX=0;
                motionY=0;
                motionZ=0;
                ++this.ticksInGround;
            }

            if(this.getDistance(getEntityByUUID(entityPlayer,world))>=64){
                System.out.println("ln:92 got called");
                this.setDead();
            }

            BlockPos blockpos = new BlockPos(this);
            IBlockState iblockstate = this.world.getBlockState(blockpos);
            if (this.currentState == Clawshot_Head.State.FLYING)
            {
                if (this.caughtEntity != null)
                {
                    this.motionX = 0.0D;
                    this.motionY = 0.0D;
                    this.motionZ = 0.0D;
                    this.currentState = Clawshot_Head.State.HOOKED_IN_ENTITY;
                    return;
                }

                if (!this.world.isRemote)
                {
                    this.checkCollision();
                }

                if (!this.inGround && !this.onGround && !this.collidedHorizontally)
                {
                    ++this.ticksInAir;
                }
                else
                {
                    this.ticksInAir = 0;
                    this.motionX = 0.0D;
                    this.motionY = 0.0D;
                    this.motionZ = 0.0D;
                }

            }
            else
            {
                if (this.currentState == Clawshot_Head.State.HOOKED_IN_ENTITY)
                {
                    if (this.caughtEntity != null)
                    {
                        if (this.caughtEntity.isDead)
                        {
                            this.caughtEntity = null;
                            this.currentState = Clawshot_Head.State.FLYING;
                        }
                        else
                        {
                            this.posX = this.caughtEntity.posX;
                            double d2 = (double)this.caughtEntity.height;
                            this.posY = this.caughtEntity.getEntityBoundingBox().minY + d2 * 0.8D;
                            this.posZ = this.caughtEntity.posZ;
                            this.setPosition(this.posX, this.posY, this.posZ);
                        }
                    }

                    return;
                }
            }

            this.move(MoverType.SELF, this.motionX, this.motionY, this.motionZ);
            this.updateRotation();
            this.setPosition(this.posX, this.posY, this.posZ);
        }
        if (this.ticksInGround >= 1200)
        {
            System.out.println("ln:157 got called");
            this.setDead();
        }
        if (ticksInAir>=200){
            System.out.println("ln:162 got called");
            this.setDead();
        }

    }

    private void updateRotation()
    {
        float f = MathHelper.sqrt(this.motionX * this.motionX + this.motionZ * this.motionZ);
        this.rotationYaw = (float)(MathHelper.atan2(this.motionX, this.motionZ) * (180D / Math.PI));

        for (this.rotationPitch = (float)(MathHelper.atan2(this.motionY, (double)f) * (180D / Math.PI)); this.rotationPitch - this.prevRotationPitch < -180.0F; this.prevRotationPitch -= 360.0F)
        {

        }

        while (this.rotationPitch - this.prevRotationPitch >= 180.0F)
        {
            this.prevRotationPitch += 360.0F;
        }

        while (this.rotationYaw - this.prevRotationYaw < -180.0F)
        {
            this.prevRotationYaw -= 360.0F;
        }

        while (this.rotationYaw - this.prevRotationYaw >= 180.0F)
        {
            this.prevRotationYaw += 360.0F;
        }

        this.rotationPitch = this.prevRotationPitch + (this.rotationPitch - this.prevRotationPitch) * 0.2F;
        this.rotationYaw = this.prevRotationYaw + (this.rotationYaw - this.prevRotationYaw) * 0.2F;
    }

    public void shoot(Entity entity) {
        System.out.println(entity);
        this.motionX=0.6D*entity.getLookVec().x;
        this.motionY=0.6D*entity.getLookVec().y;
        this.motionZ=0.6D*entity.getLookVec().z;

    }

    public void shoot(double p_shoot_1_, double p_shoot_3_, double p_shoot_5_, float p_shoot_7_, float p_shoot_8_){}

    public int handleHookRetraction()
    {
        if (!this.world.isRemote && this.entityPlayer != null)
        {
            int i = 0;
            if (this.caughtEntity != null)
            {
                this.bringInHookedEntity();
                this.world.setEntityState(this, (byte)31);
                i = this.caughtEntity instanceof EntityItem ? 3 : 5;
            }
            else if (this.inGround)
            {
                i = 2;
            }

            this.setDead();
            return i;
        }
        else
        {
            return 0;
        }
    }

    protected void bringInHookedEntity()
    {
        if (this.getEntityByUUID(entityPlayer,world) != null)
        {
            double d0 = this.getEntityByUUID(entityPlayer,world).posX - this.posX;
            double d1 = this.getEntityByUUID(entityPlayer,world).posY - this.posY;
            double d2 = this.getEntityByUUID(entityPlayer,world).posZ - this.posZ;
            double d3 = 0.1D;
            this.caughtEntity.motionX += d0 * 0.1D;
            this.caughtEntity.motionY += d1 * 0.1D;
            this.caughtEntity.motionZ += d2 * 0.1D;
        }
    }

    public void setDead()
    {
        super.setDead();
    }

    public EntityPlayer getAngler()
    {
        return this.getEntityByUUID(entityPlayer,this.world);
    }

    private EntityPlayer getEntityByUUID(UUID entityUUID, World worldIn){
        int lenght =worldIn.getLoadedEntityList().size();
        List<Entity> loadedEntityList= worldIn.getLoadedEntityList();
        EntityPlayer foundEntity = null;
        for (int i = 0;i<lenght;i++){
            if (loadedEntityList.get(i).getUniqueID()==entityUUID){
                if (loadedEntityList.get(i) instanceof EntityPlayer) {
                    foundEntity = (EntityPlayer) loadedEntityList.get(i);
                }
            }
        }
        return foundEntity;
    }

    private void init(EntityPlayer p_init_1_) {
        this.setSize(0.25F, 0.25F);
        this.ignoreFrustumCheck = true;
        this.entityPlayer = p_init_1_.getUniqueID();
    }

    private void checkCollision() {
        Vec3d vec3d = new Vec3d(this.posX, this.posY, this.posZ);
        Vec3d vec3d1 = new Vec3d(this.posX + 0.2, this.posY + 0.2, this.posZ + 0.2);
        RayTraceResult raytraceresult = this.world.rayTraceBlocks(vec3d, vec3d1, false, true, false);
        vec3d = new Vec3d(this.posX, this.posY, this.posZ);
        vec3d1 = new Vec3d(this.posX + this.motionX, this.posY + this.motionY, this.posZ + this.motionZ);
        if (raytraceresult != null) {
            vec3d1 = new Vec3d(raytraceresult.hitVec.x, raytraceresult.hitVec.y, raytraceresult.hitVec.z);
            this.inGround=true;
            this.motionX=0;
            this.motionY=0;
            this.motionZ=0;
            getEntityByUUID(entityPlayer,this.world).posX=this.posX;
            getEntityByUUID(entityPlayer,this.world).posY=this.posY;
            getEntityByUUID(entityPlayer,this.world).posZ=this.posZ;
        }

        Entity entity = null;
        List<Entity> list = this.world.getEntitiesWithinAABBExcludingEntity(this, this.getEntityBoundingBox().expand(this.motionX, this.motionY, this.motionZ).grow(1.0D));
        double d0 = 0.0D;
        Iterator var8 = list.iterator();

        while(true) {
            Entity entity1;
            double d1;
            do {
                RayTraceResult raytraceresult1;
                do {
                    do {
                        do {
                            if (!var8.hasNext()) {
                                if (entity != null) {
                                    raytraceresult = new RayTraceResult(entity);
                                }

                                if (raytraceresult != null && raytraceresult.typeOfHit != RayTraceResult.Type.MISS) {
                                    if (raytraceresult.typeOfHit == RayTraceResult.Type.ENTITY) {
                                        this.caughtEntity = raytraceresult.entityHit;
                                        this.setHookedEntity();
                                    } else {
                                        this.inGround = true;
                                    }
                                }

                                return;
                            }

                            entity1 = (Entity)var8.next();
                        } while(!this.canBeHooked(entity1));
                    } while(entity1 == this.getEntityByUUID(entityPlayer,this.world) && this.ticksInAir < 5);

                    AxisAlignedBB axisalignedbb = entity1.getEntityBoundingBox().grow(0.30000001192092896D);
                    raytraceresult1 = axisalignedbb.calculateIntercept(vec3d, vec3d1);
                } while(raytraceresult1 == null);

                d1 = vec3d.squareDistanceTo(raytraceresult1.hitVec);
            } while(d1 >= d0 && d0 != 0.0D);

            entity = entity1;
            d0 = d1;
        }
    }

    private void setHookedEntity() {
        this.getDataManager().set(DATA_HOOKED_ENTITY, this.caughtEntity.getEntityId() + 1);
    }

    protected boolean canBeHooked(Entity p_canBeHooked_1_) {
        return p_canBeHooked_1_.canBeCollidedWith() || p_canBeHooked_1_ instanceof EntityItem;
    }

    protected void entityInit() {
        this.getDataManager().register(DATA_HOOKED_ENTITY, 0);
    }

    @Override
    protected void readEntityFromNBT(NBTTagCompound nbtTagCompound) {

    }

    @Override
    protected void writeEntityToNBT(NBTTagCompound nbtTagCompound) {

    }

    static {
        DATA_HOOKED_ENTITY = EntityDataManager.createKey(Clawshot_Head.class, DataSerializers.VARINT);
    }

    @Override
    public void writeSpawnData(ByteBuf buffer) {
        buffer.writeBoolean(getEntityByUUID(entityPlayer,this.world)==null);
        if (getEntityByUUID(entityPlayer,this.world)!=null) {
            buffer.writeInt(getEntityByUUID(entityPlayer,this.world).getEntityId());
        }
    }

    @Override
    public void readSpawnData(ByteBuf additionalData) {
        boolean nullPlayer = additionalData.readBoolean();
        if (!nullPlayer){
            EntityPlayer entityByID=(EntityPlayer) world.getEntityByID(additionalData.readInt());
            if (entityByID!=null){
                entityPlayer=entityByID.getUniqueID();
            }
            this.shoot(getEntityByUUID(entityPlayer,this.world));
        }
    }

    static enum State {
        FLYING,
        HOOKED_IN_ENTITY;

        private State() {
        }
    }
}

_Cruelar_ · July 29, 2018

I found something that might give a hint to the core of the problem:

I'm calling shoot in the constructor and in the readSpawnData()

If I remove it in the constructor the Entity can't move.

If I remove it in readSpawnData() the behavior doesn't change

I noticed it by reading the output of shoot() when I Right click to shoot:

Spoiler

[12:24:02] [main/INFO] [STDOUT]: [com.cruelar.cruelars_triforcemod.entities.projectiles.Clawshot_Head:shoot:207]: EntityPlayerSP['Player200'/373, l='MpServer', x=224.65, y=93.19, z=279.93]
[12:24:02] [Server thread/INFO] [STDOUT]: [com.cruelar.cruelars_triforcemod.entities.projectiles.Clawshot_Head:shoot:207]: EntityPlayerMP['Player200'/373, l='Triforce Test', x=224.65, y=93.19, z=279.93]
[12:24:02] [main/INFO] [STDOUT]: [com.cruelar.cruelars_triforcemod.entities.projectiles.Clawshot_Head:shoot:207]: EntityPlayerSP['Player200'/373, l='MpServer', x=224.65, y=93.19, z=279.93]

A minor thing would be that I want to have a chain or at least a line between the entity and the item and don't know how to do that.

_Cruelar_ · July 31, 2018

@Animefan8888 and @diesieben07

I'm feeling we're close to the solution but I need your help as I don't know enough about this stuff yet.

_Cruelar_ · August 5, 2018

So I just managed to set up the breakpoints. Seems like I've done something wrong before.

But still The Entity is only set dead when I reload the world. All other conditions than entityplayer==null seem to be false all the time.

I'll appreciate any help. (Code is in my older posts)

Also the Entity starts after a short time at its startposition with its new movement speed.

_Cruelar_ · August 9, 2018

How can my Entity "die" without causing one of my Breakpoints? The only Output I get is on Loading a World cause off EntityPlayer being null

Cadiboo · August 10, 2018

9 hours ago, _Cruelar_ said:

How can my Entity "die" without causing one of my Breakpoints? The only Output I get is on Loading a World cause off EntityPlayer being null

Override set dead, return super & set a breakpoint there

_Cruelar_ · August 10, 2018

On 7/28/2018 at 8:19 PM, _Cruelar_ said:

public void setDead() { super.setDead(); }

I did already. no results. that's why I used these ".

Edited August 11, 2018 by _Cruelar_

_Cruelar_ · August 11, 2018

I experimented a bit and now I have ~~two~~ one entity~~: One that behaves like before and one~~ with the right size and almost the right behavior.

Here's my updated code:

Item:

package com.cruelar.cruelars_triforcemod.items;

import com.cruelar.cruelars_triforcemod.Cruelars_Triforcemod_Core;
import com.cruelar.cruelars_triforcemod.entities.projectiles.Clawshot_Head;
import com.cruelar.cruelars_triforcemod.inventory.cruelars_triforcemod;
import net.minecraft.client.renderer.block.model.ModelResourceLocation;
import net.minecraft.entity.Entity;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.IItemPropertyGetter;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.util.ActionResult;
import net.minecraft.util.EnumActionResult;
import net.minecraft.util.EnumHand;
import net.minecraft.util.ResourceLocation;
import net.minecraft.world.World;
import net.minecraftforge.client.model.ModelLoader;
import net.minecraftforge.fml.relauncher.Side;
import net.minecraftforge.fml.relauncher.SideOnly;

import javax.annotation.Nullable;
import java.util.List;
import java.util.Objects;
import java.util.UUID;

public class Clawshot_TP extends Item {
    public Entity entity;

    public Clawshot_TP(){
        this.setCreativeTab(cruelars_triforcemod.CRUELARS_TRIFORCEMOD);
        this.setRegistryName("clawshot_tp");
        this.setUnlocalizedName(Cruelars_Triforcemod_Core.MODID+".clawshot_tp");
        this.addPropertyOverride(new ResourceLocation("cast"), new IItemPropertyGetter() {
            @SideOnly(Side.CLIENT)
            public float apply(ItemStack p_apply_1_, @Nullable World p_apply_2_, @Nullable EntityLivingBase p_apply_3_) {
                if (p_apply_3_ == null) {
                    return 0.0F;
                } else {
                    boolean lvt_4_1_ = p_apply_3_.getHeldItemMainhand() == p_apply_1_;
                    boolean lvt_5_1_ = p_apply_3_.getHeldItemOffhand() == p_apply_1_;
                    if (p_apply_3_.getHeldItemMainhand().getItem() instanceof Clawshot_TP) {
                        lvt_5_1_ = false;
                    }

                    return (lvt_4_1_ || lvt_5_1_) && p_apply_3_ instanceof EntityPlayer && entity != null ? 1.0F : 0.0F;
                }
            }
        });
    }

    @Override
    public ActionResult<ItemStack> onItemRightClick(World world, EntityPlayer entityPlayer,EnumHand enumHand) {
        ItemStack itemStack = entityPlayer.getHeldItem(enumHand);
		if (world.isRemote){
            if (!this.getTagCompoundSafe(itemStack).hasKey("shot") || !this.getTagCompoundSafe(itemStack).getBoolean("shot") || this.getEntityByUUID(Objects.requireNonNull(this.getTagCompoundSafe(itemStack).getUniqueId("head")),world,itemStack)!=null && this.getEntityByUUID(Objects.requireNonNull(this.getTagCompoundSafe(itemStack).getUniqueId("head")),world,itemStack).isDead) {
                Clawshot_Head clawshot_head = new Clawshot_Head(world, entityPlayer);
                clawshot_head.shoot(entityPlayer);
                world.spawnEntity(clawshot_head);
                this.getTagCompoundSafe(itemStack).setBoolean("shot",true);
                this.getTagCompoundSafe(itemStack).setUniqueId("head",clawshot_head.getUniqueID());
            } else if (this.getEntityByUUID(this.getTagCompoundSafe(itemStack).getUniqueId("head"),world,itemStack)!=null){
                this.getEntityByUUID(this.getTagCompoundSafe(itemStack).getUniqueId("head"),world,itemStack).setDead();
                this.getTagCompoundSafe(itemStack).setBoolean("shot",false);
            }
        }
        return new ActionResult(EnumActionResult.SUCCESS,itemStack);
    }

    @SideOnly(Side.CLIENT)
    public void initModel(){
        ModelLoader.setCustomModelResourceLocation(this, 0, new ModelResourceLocation(Objects.requireNonNull(getRegistryName()), "inventory"));
    }

    private NBTTagCompound getTagCompoundSafe(ItemStack stack) {
        NBTTagCompound tagCompound = stack.getTagCompound();
        if (tagCompound == null) {
            tagCompound = new NBTTagCompound();
            stack.setTagCompound(tagCompound);
        }
        return tagCompound;
    }

    private Entity getEntityByUUID(UUID entityUUID, World worldIn, ItemStack itemStack){
        int lenght =worldIn.loadedEntityList.size();
        List<Entity> loadedEntityList= worldIn.loadedEntityList;
        Entity foundEntity = null;
        for (int i = 0;i<lenght;i++){
            if (loadedEntityList.get(i).getUniqueID()==entityUUID){
                foundEntity = loadedEntityList.get(i);
            }
        }
        entity=foundEntity;
        return foundEntity;
    }
}

Entity:

package com.cruelar.cruelars_triforcemod.entities.projectiles;

import io.netty.buffer.ByteBuf;
import net.minecraft.block.state.IBlockState;
import net.minecraft.entity.Entity;
import net.minecraft.entity.MoverType;
import net.minecraft.entity.item.EntityItem;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.network.datasync.DataParameter;
import net.minecraft.network.datasync.DataSerializers;
import net.minecraft.network.datasync.EntityDataManager;
import net.minecraft.util.ResourceLocation;
import net.minecraft.util.math.*;
import net.minecraft.world.World;
import net.minecraftforge.fml.common.registry.IEntityAdditionalSpawnData;
import net.minecraftforge.fml.relauncher.Side;
import net.minecraftforge.fml.relauncher.SideOnly;

import java.util.Iterator;
import java.util.List;
import java.util.UUID;

public class Clawshot_Head extends Entity implements IEntityAdditionalSpawnData{
    private UUID entityPlayer;
    public Entity caughtEntity;
    public Clawshot_Head.State currentState;
    private static final DataParameter<Integer> DATA_HOOKED_ENTITY;
    private boolean inGround;
    private int ticksInAir;
    private int ticksInGround;
    public static final ResourceLocation RESOURCE_LOCATION=new ResourceLocation("cruelars_triforcemod:textures/entity/projectiles/clawshot_head.png");

    public Clawshot_Head(World world){
        super(world);
    }

    public Clawshot_Head(World world, EntityPlayer entityPlayer){
        super(world);
        this.init(entityPlayer);
        this.currentState = Clawshot_Head.State.FLYING;
        this.setPosition((double)entityPlayer.posX,(double)entityPlayer.posY+entityPlayer.getEyeHeight(),(double)entityPlayer.posZ);
        //this.shoot(entityPlayer); // Changed that as it is called before readSpawnData and writeSpawnData
        this.setNoGravity(true);
    }

    @SideOnly(Side.CLIENT)
    public Clawshot_Head(World world, EntityPlayer entityPlayer, double posX, double posY, double posZ) {
        super(world);
        this.init(entityPlayer);
        this.setPosition(posX,posY,posZ);
        this.prevPosX = this.posX;
        this.prevPosY = this.posY;
        this.prevPosZ = this.posZ;
    }

    public void notifyDataManagerChange(DataParameter<?> p_notifyDataManagerChange_1_) {
        if (DATA_HOOKED_ENTITY.equals(p_notifyDataManagerChange_1_)) {
            int i = (Integer)this.getDataManager().get(DATA_HOOKED_ENTITY);
            this.caughtEntity = i > 0 ? this.world.getEntityByID(i - 1) : null;
        }

        super.notifyDataManagerChange(p_notifyDataManagerChange_1_);
    }

    public void onUpdate()
    {
        super.onUpdate();
        if (this.entityPlayer == null)
        {
            System.out.println("ln:70 got called");
            this.setDead();

        }
        else if (this.world.isRemote)
        {
            if (this.inGround) {
                ++this.ticksInGround;
                motionX = 0;
                motionY = 0;
                motionZ = 0;
            }

            if(this.collidedHorizontally){
                motionX=0;
                motionY=0;
                motionZ=0;
                ++this.ticksInGround;
            }

            if(this.getDistance(getEntityByUUID(entityPlayer,world))>=64){
                System.out.println("ln:92 got called");
                this.setDead();
            }

            BlockPos blockpos = new BlockPos(this);
            IBlockState iblockstate = this.world.getBlockState(blockpos);
            if (this.currentState == Clawshot_Head.State.FLYING)
            {
                if (this.caughtEntity != null)
                {
                    this.motionX = 0.0D;
                    this.motionY = 0.0D;
                    this.motionZ = 0.0D;
                    this.currentState = Clawshot_Head.State.HOOKED_IN_ENTITY;
                    return;
                }

                if (!this.world.isRemote)
                {
                    this.checkCollision();
                }

            }
            else
            {
                if (this.currentState == Clawshot_Head.State.HOOKED_IN_ENTITY)
                {
                    if (this.caughtEntity != null)
                    {
                        if (this.caughtEntity.isDead)
                        {
                            this.caughtEntity = null;
                            this.currentState = Clawshot_Head.State.FLYING;
                        }
                        else
                        {
                            this.posX = this.caughtEntity.posX;
                            double d2 = (double)this.caughtEntity.height;
                            this.posY = this.caughtEntity.getEntityBoundingBox().minY + d2 * 0.8D;
                            this.posZ = this.caughtEntity.posZ;
                            this.setPosition(this.posX, this.posY, this.posZ);
                        }
                    }

                    return;
                }
            }

            this.move(MoverType.SELF, this.motionX, this.motionY, this.motionZ);
            this.updateRotation();
            this.setPosition(this.posX, this.posY, this.posZ);
        }
        if (this.ticksInAir>20){
            this.setDead();
        }
        if (this.ticksInGround >= 1200)
        {
            System.out.println("ln:147 got called");
            this.setDead();
        }

    }

    private void updateRotation()
    {
        float f = MathHelper.sqrt(this.motionX * this.motionX + this.motionZ * this.motionZ);
        this.rotationYaw = (float)(MathHelper.atan2(this.motionX, this.motionZ) * (180D / Math.PI));

        for (this.rotationPitch = (float)(MathHelper.atan2(this.motionY, (double)f) * (180D / Math.PI)); this.rotationPitch - this.prevRotationPitch < -180.0F; this.prevRotationPitch -= 360.0F)
        {

        }

        while (this.rotationPitch - this.prevRotationPitch >= 180.0F)
        {
            this.prevRotationPitch += 360.0F;
        }

        while (this.rotationYaw - this.prevRotationYaw < -180.0F)
        {
            this.prevRotationYaw -= 360.0F;
        }

        while (this.rotationYaw - this.prevRotationYaw >= 180.0F)
        {
            this.prevRotationYaw += 360.0F;
        }

        this.rotationPitch = this.prevRotationPitch + (this.rotationPitch - this.prevRotationPitch) * 0.2F;
        this.rotationYaw = this.prevRotationYaw + (this.rotationYaw - this.prevRotationYaw) * 0.2F;
    }

    public void shoot(Entity entity) {
        System.out.println(entity);
        this.motionX=0.6D*entity.getLookVec().x;
        this.motionY=0.6D*entity.getLookVec().y;
        this.motionZ=0.6D*entity.getLookVec().z;

    }

    public void shoot(double p_shoot_1_, double p_shoot_3_, double p_shoot_5_, float p_shoot_7_, float p_shoot_8_){}

    public int handleHookRetraction()
    {
        if (!this.world.isRemote && this.entityPlayer != null)
        {
            int i = 0;
            if (this.caughtEntity != null)
            {
                this.bringInHookedEntity();
                this.world.setEntityState(this, (byte)31);
                i = this.caughtEntity instanceof EntityItem ? 3 : 5;
            }
            else if (this.inGround)
            {
                i = 2;
            }

            this.setDead();
            return i;
        }
        else
        {
            return 0;
        }
    }

    protected void bringInHookedEntity()
    {
        if (this.getEntityByUUID(entityPlayer,world) != null)
        {
            double d0 = this.getEntityByUUID(entityPlayer,world).posX - this.posX;
            double d1 = this.getEntityByUUID(entityPlayer,world).posY - this.posY;
            double d2 = this.getEntityByUUID(entityPlayer,world).posZ - this.posZ;
            double d3 = 0.1D;
            this.caughtEntity.motionX += d0 * d3;
            this.caughtEntity.motionY += d1 * d3;
            this.caughtEntity.motionZ += d2 * d3;
        }
    }

    public void setDead()
    {
        super.setDead();
    }

    public EntityPlayer getAngler()
    {
        return this.getEntityByUUID(entityPlayer,this.world);
    }


    private EntityPlayer getEntityByUUID(UUID entityUUID, World worldIn){
        int lenght =worldIn.loadedEntityList.size();
        List<Entity> loadedEntityList= worldIn.loadedEntityList;
        EntityPlayer foundEntity = null;
        for (int i = 0;i<lenght;i++){
            if (loadedEntityList.get(i).getUniqueID()==entityUUID){
                if (loadedEntityList.get(i) instanceof EntityPlayer) {
                    foundEntity = (EntityPlayer) loadedEntityList.get(i);
                }
            }
        }
        return foundEntity;
    }

    private void init(EntityPlayer p_init_1_) {
        this.setSize(0.25F, 0.25F);
        this.ignoreFrustumCheck = true;
        this.entityPlayer = p_init_1_.getUniqueID();
    }

    private void checkCollision() {
        Vec3d vec3d = new Vec3d(this.posX, this.posY, this.posZ);
        Vec3d vec3d1 = new Vec3d(this.posX + 0.2, this.posY + 0.2, this.posZ + 0.2);
        RayTraceResult raytraceresult = this.world.rayTraceBlocks(vec3d, vec3d1, false, true, false);
        vec3d = new Vec3d(this.posX, this.posY, this.posZ);
        vec3d1 = new Vec3d(this.posX + this.motionX, this.posY + this.motionY, this.posZ + this.motionZ);
        if (raytraceresult != null) {
            vec3d1 = new Vec3d(raytraceresult.hitVec.x, raytraceresult.hitVec.y, raytraceresult.hitVec.z);
            this.inGround=true;
            this.motionX=0;
            this.motionY=0;
            this.motionZ=0;
            getEntityByUUID(entityPlayer,this.world).posX=this.posX;
            getEntityByUUID(entityPlayer,this.world).posY=this.posY;
            getEntityByUUID(entityPlayer,this.world).posZ=this.posZ;
        }

        Entity entity = null;
        List<Entity> list = this.world.getEntitiesWithinAABBExcludingEntity(this, this.getEntityBoundingBox().expand(this.motionX, this.motionY, this.motionZ).grow(1.0D));
        double d0 = 0.0D;
        Iterator var8 = list.iterator();

        while(true) {
            Entity entity1;
            double d1;
            do {
                RayTraceResult raytraceresult1;
                do {
                    do {
                        do {
                            if (!var8.hasNext()) {
                                if (entity != null) {
                                    raytraceresult = new RayTraceResult(entity);
                                }

                                if (raytraceresult != null && raytraceresult.typeOfHit != RayTraceResult.Type.MISS) {
                                    if (raytraceresult.typeOfHit == RayTraceResult.Type.ENTITY) {
                                        this.caughtEntity = raytraceresult.entityHit;
                                        this.setHookedEntity();
                                    } else {
                                        this.inGround = true;
                                    }
                                }

                                return;
                            }

                            entity1 = (Entity)var8.next();
                        } while(!this.canBeHooked(entity1));
                    } while(entity1 == this.getEntityByUUID(entityPlayer,this.world) && this.ticksInAir < 5);

                    AxisAlignedBB axisalignedbb = entity1.getEntityBoundingBox().grow(0.30000001192092896D);
                    raytraceresult1 = axisalignedbb.calculateIntercept(vec3d, vec3d1);
                } while(raytraceresult1 == null);

                d1 = vec3d.squareDistanceTo(raytraceresult1.hitVec);
            } while(d1 >= d0 && d0 != 0.0D);

            entity = entity1;
            d0 = d1;
        }
    }

    private void setHookedEntity() {
        this.getDataManager().set(DATA_HOOKED_ENTITY, this.caughtEntity.getEntityId() + 1);
    }

    protected boolean canBeHooked(Entity p_canBeHooked_1_) {
        return p_canBeHooked_1_.canBeCollidedWith() || p_canBeHooked_1_ instanceof EntityItem;
    }

    protected void entityInit() {
        this.getDataManager().register(DATA_HOOKED_ENTITY, 0);
    }

    @Override
    protected void readEntityFromNBT(NBTTagCompound nbtTagCompound) {

    }

    @Override
    protected void writeEntityToNBT(NBTTagCompound nbtTagCompound) {

    }

    static {
        DATA_HOOKED_ENTITY = EntityDataManager.createKey(Clawshot_Head.class, DataSerializers.VARINT);
    }

    @Override
    public void writeSpawnData(ByteBuf buffer) {
        buffer.writeBoolean(getEntityByUUID(entityPlayer,this.world)==null);
        if (getEntityByUUID(entityPlayer,this.world)!=null) {
            buffer.writeInt(getEntityByUUID(entityPlayer,this.world).getEntityId());
        }
    }

    @Override
    public void readSpawnData(ByteBuf additionalData) {
        boolean nullPlayer = additionalData.readBoolean();
        if (!nullPlayer){
            EntityPlayer entityByID=(EntityPlayer) world.getEntityByID(additionalData.readInt());
            if (entityByID!=null){
                entityPlayer=entityByID.getUniqueID();
            }
            //this.shoot(getEntityByUUID(entityPlayer,this.world)); //changed that because it is only called on one Side. Obviously the wrong side.
        }
    }

    static enum State {
        FLYING,
        HOOKED_IN_ENTITY;

        private State() {
        }
    }
}

New log output when shooting:

Spoiler

[11:13:43] [main/INFO] [STDOUT]: [com.cruelar.cruelars_triforcemod.entities.projectiles.Clawshot_Head:shoot:209]: EntityPlayerSP['Player636'/283, l='MpServer', x=250.85, y=72.79, z=261.42]
[11:15:01] [main/INFO] [STDOUT]: [com.cruelar.cruelars_triforcemod.entities.projectiles.Clawshot_Head:onUpdate:92]: ln:92 got called

It dies from me being to far away. Remaining Problems:

I can't retract it and can't use the Item more than one time.

I would like to have a line drawn between the Entity and me. Quite similar to the fishing hook.

Edited August 11, 2018 by _Cruelar_
More experimenting removed the 2nd entity, Updated code

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[Unsolved][1.12.2] Problem on spawning one-per-player-entity spawned by item

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