package net.minecraft.entity.item;

import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;
import net.minecraft.entity.Entity;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.entity.player.EntityPlayerMP;
import net.minecraft.entity.projectile.EntityThrowable;
import net.minecraft.util.DamageSource;
import net.minecraft.util.MovingObjectPosition;
import net.minecraft.world.World;
import net.minecraftforge.common.MinecraftForge;
import net.minecraftforge.event.entity.living.EnderTeleportEvent;

public class EntityEnderPearl extends EntityThrowable
{
	public EntityEnderPearl(World par1World)
	{
		super(par1World);
	}

	public EntityEnderPearl(World par1World, EntityLivingBase par2EntityLivingBase)
	{
		super(par1World, par2EntityLivingBase);
	}

	@SideOnly(Side.CLIENT)
	public EntityEnderPearl(World par1World, double par2, double par4, double par6)
	{
		super(par1World, par2, par4, par6);
	}

	/**
	 * Called when this EntityThrowable hits a block or entity.
	 */
	protected void onImpact(MovingObjectPosition par1MovingObjectPosition)
	{
		if (par1MovingObjectPosition.entityHit != null)
		{
			par1MovingObjectPosition.entityHit.attackEntityFrom(DamageSource.causeThrownDamage(this, this.getThrower()), 0.0F);
		}
		for (int i = 0; i < 32; ++i)
		{
			this.worldObj.spawnParticle("portal", this.posX, this.posY + this.rand.nextDouble() * 2.0D, this.posZ, this.rand.nextGaussian(), 0.0D, this.rand.nextGaussian());
		}
		if (!this.worldObj.isRemote)
		{
			if (this.getThrower() != null && this.getThrower() instanceof EntityPlayerMP)
			{
				EntityPlayerMP entityplayermp = (EntityPlayerMP) this.getThrower();
				
				//--> modified code
				
				//iterates over the list of players in the world-Object to get the one thats referenced as the thrower of the enderpearl and updates the reference using the username
				EntityPlayerMP player = null;
				for(int i = 0; i < entityplayermp.worldObj.playerEntities.size(); i++)
				{
					if(((EntityPlayerMP)entityplayermp.worldObj.playerEntities.get(i)).username.equals(entityplayermp.username))
					{
						player = (EntityPlayerMP) entityplayermp.worldObj.playerEntities.get(i);
						break;
					}
				}
				//actually updates the reference
				entityplayermp = player;
				
				//checks whether the player is older than the enderpearl. if so it teleports otherwise it just aborts
				
				if (entityplayermp != null && this.ticksExisted < entityplayermp.ticksExisted)
				{
					//Keep in mind that this fix only works as long as the chunk the enderpearl is in is loaded while the player is dead.
					//Otherwise the player could get older after respawning than the enderpearl so teleporting gets possible again.
					//To fix this the player and the enderpearl would need a timestamp to check the real age and not just the time they where loaded.
					//<-- modified code
					if (!entityplayermp.playerNetServerHandler.connectionClosed && entityplayermp.worldObj == this.worldObj)
					{
						EnderTeleportEvent event = new EnderTeleportEvent(entityplayermp, this.posX, this.posY, this.posZ, 5.0F);
						if (!MinecraftForge.EVENT_BUS.post(event))
						{
							if (this.getThrower().isRiding())
							{
								this.getThrower().mountEntity((Entity) null);
							}
							this.getThrower().setPositionAndUpdate(event.targetX, event.targetY, event.targetZ);
							this.getThrower().fallDistance = 0.0F;
							this.getThrower().attackEntityFrom(DamageSource.fall, event.attackDamage);
						}
					}
				}
			}
			this.setDead();
		}
	}
}