TF-EssentialsX/Essentials/src/com/earth2me/essentials/Mob.java

package com.earth2me.essentials;

import java.lang.reflect.Constructor;
import java.util.HashMap;
import java.util.logging.Logger;
import net.minecraft.server.Entity;
import net.minecraft.server.WorldServer;
import org.bukkit.Server;
import org.bukkit.craftbukkit.entity.CraftEntity;
import org.bukkit.craftbukkit.CraftServer;
import org.bukkit.entity.Player;


public enum Mob
{
	CHICKEN("Chicken", Enemies.FRIENDLY),
	COW("Cow", Enemies.FRIENDLY),
	CREEPER("Creeper", Enemies.ENEMY),
	GHAST("Ghast", Enemies.ENEMY),
	GIANT("Giant", "GiantZombie", Enemies.ENEMY),
	PIG("Pig", Enemies.FRIENDLY),
	PIGZOMB("PigZombie", Enemies.NEUTRAL),
	SHEEP("Sheep", Enemies.FRIENDLY, ""),
	SKELETON("Skeleton", Enemies.ENEMY),
	SLIME("Slime", Enemies.ENEMY),
	SPIDER("Spider", Enemies.ENEMY),
	SQUID("Squid", Enemies.FRIENDLY),
	ZOMBIE("Zombie", Enemies.ENEMY),
	MONSTER("Monster", Enemies.ENEMY),
	WOLF("Wolf", Enemies.NEUTRAL);

	public static final Logger logger = Logger.getLogger("Minecraft");

	private Mob(String n, Enemies en, String s)
	{
		this.s = s;
		this.name = n;
		this.craftClass = n;
		this.entityClass = n;
		this.type = en;
	}

	private Mob(String n, Enemies en)
	{
		this.name = n;
		this.craftClass = n;
		this.entityClass = n;
		this.type = en;
	}

	private Mob(String n, String ec, Enemies en)
	{
		this.name = n;
		this.craftClass = n;
		this.entityClass = ec;
		this.type = en;
	}

	private Mob(String n, String ec, String cc, Enemies en)
	{
		this.name = n;
		this.entityClass = ec;
		this.craftClass = cc;
		this.type = en;
	}
	public String s = "s";
	public String name;
	public Enemies type;
	private String entityClass;
	private String craftClass;
	private static final HashMap<String, Mob> hashMap = new HashMap<String, Mob>();

	static
	{
		for (Mob mob : Mob.values())
		{
			hashMap.put(mob.name, mob);
		}
	}

	@SuppressWarnings(
	{
		"unchecked", "CallToThreadDumpStack"
	})
	public CraftEntity spawn(Player player, Server server) throws MobException
	{
		try
		{
			WorldServer world = ((org.bukkit.craftbukkit.CraftWorld)player.getWorld()).getHandle();
			Constructor<CraftEntity> craft = (Constructor<CraftEntity>)ClassLoader.getSystemClassLoader().loadClass("org.bukkit.craftbukkit.entity.Craft" + craftClass).getConstructors()[0];
			Constructor<Entity> entity = (Constructor<Entity>)ClassLoader.getSystemClassLoader().loadClass("net.minecraft.server.Entity" + entityClass).getConstructors()[0];
			return craft.newInstance((CraftServer)server, entity.newInstance(world));
		}
		catch (Exception ex)
		{
			logger.warning("Unable to spawn mob.");
			ex.printStackTrace();
			throw new MobException();
		}
	}


	public enum Enemies
	{
		FRIENDLY("friendly"),
		NEUTRAL("neutral"),
		ENEMY("enemy");

		private Enemies(String t)
		{
			this.type = t;
		}
		protected String type;
	}


	public class MobException extends Exception
	{
		private static final long serialVersionUID = 1L;
	}

	public static Mob fromName(String n)
	{
		return hashMap.get(n);
	}
}