class Sprite_Timer
  def initialize(viewport=nil)
    @viewport=viewport
    @timer=nil
    @total_sec=nil
    @disposed=false
  end

  def dispose
    @timer.dispose if @timer
    @timer=nil
    @disposed=true
  end

  def disposed?
    @disposed
  end

  def update
    return if disposed?
    if $game_system.timer_working
      if !@timer
        @timer=Window_AdvancedTextPokemon.newWithSize("",Graphics.width-120,0,120,64)
        @timer.width=@timer.borderX+96
        @timer.x=Graphics.width-@timer.width
        @timer.viewport=@viewport
        @timer.z=99998
      end
      curtime=$game_system.timer / Graphics.frame_rate
      curtime=0 if curtime<0
      if curtime != @total_sec
        # Calculate total number of seconds
        @total_sec = curtime
        # Make a string for displaying the timer
        min = @total_sec / 60
        sec = @total_sec % 60
        @timer.text = _ISPRINTF("<ac>{1:02d}:{2:02d}", min, sec)
      end
      @timer.update
    else
      @timer.visible=false if @timer
    end
  end
end