The setup

Open your Xcode and create a new project. This time, instead of selecting Single View Application, you have to choose the Game template.

The preceding screenshot shows a template called Game. However, in the previous versions of Xcode, it was called SpriteKit. The name was changed due to the introduction of Metal and Scene Kit.

In the next dialog, some information will be required to set up the game. Set its name to Chapter 6 DinoSurf and ensure that Swift is its main language and SpriteKit is the chosen game technology. Your settings must be the same as it is in the following screenshot:

Then, choose the folder where you want to save the project and you will see your new project, however, you will appreciate a few differences. Instead of a file called ViewController.swift, you have GameViewController.swift and besides this file, you have two new files: GameScene.swift and GameScene.sks. Don't worry about the meaning or the content of each of these files; we are going to see it very...