Board.java

public class Board implements Listener
{
    private int countdown;
    private Scoreboard board;

    public Board()
    {
        board = Bukkit.getScoreboardManager().getNewScoreboard();

        countdown = 600;
    }

    public Scoreboard getBoard()
    {
        return board;
    }

    public int getCountdown()
    {
        return countdown;
    }

    public void changeCountdown(int newCountdown)
    {
        this.countdown = newCountdown;
    }

    public void decrementCountdown()
    {
        this.countdown--;
    }

    public void updateScoreboard()
    {
        for(Player online : Bukkit.getOnlinePlayers())
        {
            ScoreboardSign sign = ScoreboardManager.get(online);

            switch(GameStates.getState())
            {
                default:
                    break;

                case PVP:

                    sign.setLine(3, "PvP » §6" + format(countdown));

                    break;

                case ASSAUT:

                    sign.setLine(3, "» §6" + format(countdown));

                    break;

            }
        }
    }

    @EventHandler
    public void onJoin(PlayerJoinEvent e)
    {
        Player p = e.getPlayer();
        ScoreboardSign sign;

        p.setScoreboard(board);
        sign = ScoreboardManager.create(p);

        if(!GameStates.isState(GameStates.WAIT))
        {
            sign.setLine(1, ChatColor.DARK_GRAY + ChatColor.STRIKETHROUGH.toString() + "+------------------" + ChatColor.DARK_GRAY + "+");
            sign.setLine(2, "§1");
        }
        if(GameStates.isState(GameStates.INGAME))
            sign.removeLine(3);
    }

    private String format(long input)
    {
        String output = "";
        long  minutes = 0, seconds = 0;

        while(input >= 60)
        {
                minutes++;
                input -=  60;
        }

        seconds = input;

        if(minutes > 0)
        {
                if(minutes < 10)
                        output += "0"+ minutes +":";
                else
                        output += minutes + ":";
        } else
                output += "00:";

        if(seconds > 0)
        {
                if(seconds < 10)
                        output += "0"+ seconds;
                 else
                        output += seconds;
        } else
                output += "00";

        return output.trim();
    }
}