Apple Game Frameworks and Technologies

Refactor the Code and Clean Up the Project

In ​Creating a Custom Protocol to Detect Rotation Changes​, you created a custom protocol to help detect when the view changes and the layout updates device rotation. While there’s nothing wrong with how you’ve done it, there is some room for improvement: you can move the GameViewControllerDelegate declaration and supporting protocol methods that are currently saved in the GameScene.swift file to its own file.

Create a new file using the iOS Swift File template. Name this new file GameScene+ViewUpdates.swift and replace its contents with the following code:

import SpriteKit

extension GameScene: GameViewControllerDelegate {

  func didChangeLayout() {
    let w = view?.bounds.size.width ...