*-= cooldown help! =-*

Greetings People, I've made the start of this plugin, now I need help with something. I'm making a plugin which enable pvp for 15 minutes then disable it again.
the problem is that when they type /pvp start
i want it to display a cooldown that goes like this:
1 minute until pvp is enabled!
30 seconds until pvp is enabled!
15 seconds until pvp is enabled!
3 seconds until pvp is enabled!
then it get enabled for 15 minutes.
After those minutes it get disabled.
To enable and disable pvp am using the Bukkit.getConsoleSender().dispatchCommand("Region flag __global__ -w world pvp allow");

Hope you understand why I need help ;P.
This is how far I've comed:

Code:java

package com.DrBeast.PrisonPurge;
 
import java.util.ArrayList;
 
import org.bukkit.Bukkit;
import org.bukkit.command.Command;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Player;
import org.bukkit.plugin.java.JavaPlugin;
 
public class PrisonPurge extends JavaPlugin{
 
    ArrayList<Player> cooldown = new ArrayList<Player>();
 
    public void onEnalbe(){
 
    }
 
    public void onDisable(){
 
    }
 
    public boolean onCommand(CommandSender sender, Command cmd, String label, String[] args){
        if(!(sender instanceof Player)) {
            sender.sendMessage("§conly players can use this command");
            return true;
        }
        Player p = (Player) sender;
        final Player p2 = (Player) sender;
        if(p.getName().equalsIgnoreCase("purge")){
            if(p.hasPermission("Purge.start")) {
                if(args.length == 0) {
                    p.sendMessage("§4§m§l|------( §r§6Purge Help §4§m§l)------| ");
                    p.sendMessage("§8/purge start");
                    p.sendMessage("§7this command will enable pvp everywhere for 15 minutes.");
                    p.sendMessage("§4§m§l|------( §r§6Purge Help §4§m§l)------| ");
                }else if(args.length < 1) {
                    if(args[0].equalsIgnoreCase("start")){
                        if(cooldown.contains(p2)){
                            p2.sendMessage("§cThis purge is already running!");
                        } else {
                            cooldown.add(p2);
                            Bukkit.getServer().getScheduler().scheduleSyncDelayedTask(this, new Runnable() {
                                public void run() {
                                    cooldown.remove(p2);
                                }
                            }, 18000);
 
                        }
                    }
                }
            }
        }
        return false;
    }
 
 
 
}
 

 

BeastCraft3

So uh...make the countdown. I would recommend a state machine inside a repeating runnable, but that's just me.

 

mythbusterma
emm, never heard of it. its a reason why I don't know what to do.

 

BeastCraft3

http://lmgtfy.com/?q=state+machine

 

mythbusterma
I've read most of the links there. I can't really find any easy solution to my issue. Anyone else can help me?

 

BeastCraft3

http://lmgtfy.com/?q=Bukkit+countdown