Snowman

package net.awesomepowered.snowman;

import java.util.ArrayList;

import org.bukkit.Bukkit;
import org.bukkit.ChatColor;
import org.bukkit.Location;
import org.bukkit.Material;
import org.bukkit.entity.Entity;
import org.bukkit.entity.EntityType;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.block.EntityBlockFormEvent;
import org.bukkit.event.player.AsyncPlayerChatEvent;
import org.bukkit.plugin.java.JavaPlugin;
import org.bukkit.scheduler.BukkitRunnable;

public class Snowman extends JavaPlugin implements Listener {
	
	public ArrayList<Player> coolppl = new ArrayList();
	
	public void onEnable() {
		Bukkit.getPluginManager().registerEvents(this, this);
	}
	
	@EventHandler
	public void onChat(AsyncPlayerChatEvent ev) {
		Player p = ev.getPlayer();
		String m = ev.getMessage();
		if (!coolppl.contains(p)) {
			p.sendMessage(ChatColor.GREEN + "Do you wanna build a snowman?");
			p.sendMessage(ChatColor.BLUE + "\"Yes\" or \"No\"?");
			ev.setCancelled(true);
			if (m.equalsIgnoreCase("yes")) {
				coolppl.add(p);
				spawnSnowman(p.getLocation());
				p.sendMessage(ChatColor.RED + "Cool!");
			}
		}
	}
	
	
	public void spawnSnowman(final Location loc) {
		new BukkitRunnable() {
			public void run() {
				loc.getWorld().spawnEntity(loc, EntityType.SNOWMAN);
			}
		}.runTaskLater(this, 20);
	}
	
	@EventHandler
	public void onBlockForm(EntityBlockFormEvent ev) {
		Material mat = ev.getNewState().getType();
		if (mat == Material.SNOW) {
			ev.setCancelled(true);
		}
	}
	
}