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Custom Item Disappears After Exiting World


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There is the item code:


package com.blocklings.items;

import net.minecraft.entity.Entity;
import net.minecraft.entity.EntityList;
import net.minecraft.entity.IEntityLivingData;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.util.MathHelper;
import net.minecraft.util.StatCollector;
import net.minecraft.world.World;

import com.blocklings.entity.EntityBlockling;
import com.blocklings.main.Blocklings;

public class ItemBlockling extends Item {

public EntityBlockling blockling;

public int level, xp, upgrade, special;

public String blocklingName, name;

public ItemBlockling() {

	this.setTextureName(Blocklings.MODID + ":" + "blockling");


public ItemBlockling(String name, int level, int xp, int upgrade, int special) {

	this.setTextureName(Blocklings.MODID + ":" + "blockling");

	blocklingName = name;
	this.level = level;
	this.xp = xp;
	this.upgrade = upgrade;
	this.special = special;


public void onUpdate(ItemStack itemStack, World world, Entity entity, int i, boolean b) {

	itemStack.stackTagCompound = new NBTTagCompound();

	if(blocklingName.length() > 0) {

		name = blocklingName;

	} else {

		name = "Blockling";


	for(int j = 0; j < 1; j++) {

		itemStack.stackTagCompound.setString("name", blocklingName);
		itemStack.stackTagCompound.setInteger("level", level);
		itemStack.stackTagCompound.setInteger("xp", xp);
		itemStack.stackTagCompound.setInteger("upgrade", upgrade);
		itemStack.stackTagCompound.setInteger("special", special);


	level = itemStack.stackTagCompound.getInteger("level");


public ItemStack onItemRightClick(ItemStack itemStack, World world, EntityPlayer player) {

	EntityBlockling blockling = new EntityBlockling(world, level, xp, upgrade, special);

	blockling.setLocationAndAngles(player.posX, player.posY, player.posZ, MathHelper.wrapAngleTo180_float(world.rand.nextFloat() * 360.0F), 0.0F);
        if(!world.isRemote) world.spawnEntityInWorld(blockling);
        if(!world.isRemote) world.playSoundAtEntity(blockling, "fireworks.twinkle1", 1.0F, 1.0F); 
        if(!world.isRemote) itemStack.stackSize--;
        return itemStack;

public String getItemStackDisplayName(ItemStack itemStack) {

        return name;


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That makes sense, sorry. However, why does doing this in my entity class, mean the item that I pick up disappears after I exit the world?


if(this.isDead && !this.worldObj.isRemote) {

		this.worldObj.spawnEntityInWorld(new EntityItem(this.worldObj, posX, posY, posZ, new ItemStack(new ItemBow().setUnlocalizedName("bow").setTextureName("bow")))); 


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