// Do any additional setup after loading the view, typically from a nib.

        //    self.view.backgroundColor = UIColor.black

        if drawableView == nil {
            drawableView = DrawableView(frame: CGRect(x:0, y:100, width:self.view.bounds.width, height:self.view.bounds.width))
            drawableView.backgroundColor = UIColor.white
            self.view.addSubview(drawableView)
        }
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }

}