AFK Plugin

package com.HorizonNetwork.AFK;

import java.util.ArrayList;
import java.util.List;

import org.bukkit.Bukkit;
import org.bukkit.ChatColor;
import org.bukkit.Location;
import org.bukkit.command.Command;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.player.PlayerMoveEvent;
import org.bukkit.plugin.java.JavaPlugin;

public class AFK extends JavaPlugin implements Listener {
	List<String> afks = new ArrayList<String>();

	public void onEnable() {
		getServer().getPluginManager().registerEvents(this, this);
	}

	public void onDisable() {

	}

	public boolean onCommand(Command cmd, CommandSender sender, String label, String[] args){
		if(label.equalsIgnoreCase("afk") && sender.hasPermission("afk.afk")){
			Player p = (Player) sender;
			if(afks.contains(p.getName())){
				afks.remove(p.getName());
				Bukkit.broadcastMessage(p.getName() + ChatColor.GRAY + " is back!");
				return true;
			} else {
				afks.add(p.getName());
				Bukkit.broadcastMessage(p.getName() + ChatColor.RED + " is going to be right back!");
				return true;
			}
		}
		return false;
	}

	@EventHandler
	public void onMove(PlayerMoveEvent e){
		Player p = e.getPlayer();
		Location from = e.getFrom();
		Location to = e.getTo();
		double fromx = from.getX();
		double fromy = from.getY();
		double fromz = from.getZ();
		double tox = to.getX();
		double toy = to.getY();
		double toz = to.getZ();
		if(afks.contains(p.getName())){
			if(fromx != tox || fromy != toy || fromz != toz){
				p.teleport(from);
				p.sendMessage(ChatColor.RED + "You must get out of AFK if you'd like to move, do '/afk'.");
			}
		} else {
			if(!afks.contains(p.getName())){
			return;
		}
	}

}
}