rewrite: ->
      time = ((new Date).getTime() / 1000)|0
      fps  = 0

      @interval = setInterval =>
        @canvas.width = @canvas.width
        @collection.each (item) =>
          @context.save()
          item.draw @context
          @context.restore()

        if @fpsElement
          timeNow = ((new Date).getTime() / 1000)|0
          if timeNow > time then [@fpsElement.innerHTML, time, fps] = [fps, timeNow, 0] else fps++
      , Math.floor(1000 / @frames)
      console.log 'Frame rate: [' + @frames + '] ' + 1000 + '/' + ((1000 / @frames)|0)
      return @