Swift view Controller

viewcontroller.swift

if let scene = Foothills.unarchiveFromFile("Foothills") as? SKScene {

    Foothills.loadSceneAssetsWithCompletionHandler({
    
        // Configure the view.
        let skView = self.view as SKView
        skView.showsFPS = true
        skView.showsNodeCount = true
            
        /* Sprite Kit applies additional optimizations to improve rendering performance */
        skView.ignoresSiblingOrder = true
            
        /* Set the scale mode to scale to fit the window */
        scene.scaleMode = .AspectFill
            
        skView.presentScene(scene)
        
    })
    
}