         ((@options.gridHeight - @grid[@highlightColumn].length) * @options.cellSize) - (@options.cellSize/2),
         (@options.cellSize * 4/10) + 1)
 
-  mouseLeave: (e) ->
+  mouseLeave: (e) =>
     @highlight(-1)
 
   drawFrame: ->

        clearInterval(interval)
    , delay)

  start: (counter, column, colour) ->
    @context.globalCompositeOperation = 'copy'
    @context.fillStyle = 'rgba(0,0,0,0)'
    this.fillEllipse(((column + 1) * @options.cellSize) - (@options.cellSize/2),

    @grid[column].push colour
    @moves.push [colour, column]
    @options.afterMove(@grid) if @options.afterMove
    this.animateMove(@start, @options.cellSize/4, (7 - countersInColumn) * 4, column, colour)


