     public func stopSnowing() {
         emitter?.birthRate = 0
     }
-    
     
     func snowFlakeWith(color: UIColor) -> CAEmitterCell {
         

    }

    override func viewWillLayoutSubviews() {

        backgroundView.frame = self.view.frame
        
    }
    
    public func startSnowing() {

        flake.contents = whiteImage?.cgImage
        return flake
    }
}
