Tile Entity

package net.endernoobs.rpgmod;

import net.minecraft.tileentity.TileEntity;

public class TileEntityGrimReaper extends TileEntity {
	private int activatingRangeFromPlayer = 20;

	public boolean isActivated() {
		return this.worldObj.getClosestPlayer((double) this.xCoord + 0.5D,
				(double) this.yCoord + 0.5D, (double) this.zCoord + 0.5D,
				(double) this.activatingRangeFromPlayer) != null;
	}

	@Override
	public void updateEntity() {
		if (this.isActivated()) {
			if (!this.worldObj.isRemote){
			EntityGrimReaper boss =new EntityGrimReaper(worldObj);
			boss.setPosition(this.xCoord, this.yCoord, this.zCoord);
			this.worldObj.spawnEntityInWorld(boss);
			this.worldObj.setBlockToAir(this.xCoord, this.yCoord, this.zCoord);
			}
		}

	}
}