This Swift w/ SpriteKit code does not do what is intended

Question

I am very new to Swift and iOS development. I was watching tutorials on iOS development w/ Swift and SpriteKit. Following the tutorials I opened Xcode, new project, game, universal; and all I changed was the GameScene.swift. Here is the new code:

import SpriteKit

class GameScene: SKScene {
    override func didMoveToView(view: SKView) {
        /* Setup your scene here */
        var node1 = SKNode()
        node1.position = CGPoint(x: 100, y: 100)
        self.addChild(node1)

        var spr1 = SKSpriteNode(imageNamed: "Spaceship")
        spr1.position = CGPointZero
        spr1.zPosition = 1
        node1.addChild(spr1)
    }

    override func touchesBegan(touches: NSSet, withEvent event: UIEvent) {
        /* Called when a touch begins */
    }

    override func update(currentTime: CFTimeInterval) {
        /* Called before each frame is rendered */
    }
}

Note: the Spaceship image is provided by default.

So in the tutorials, this code added a spaceship to the scene. However, when I run the simulator, the scene remains blank. What can be the problem? If more info is needed, please say so and I will provide.

Answer 1

It could be running correctly, and you just can't see it on the screen. Depending on the device that you're emulating, you may be showing the spaceship off screen. Try a different, smaller device, to emulate, and check if you can see it.

Answer 2

Try going into your GameViewController.swift and making sure that you see something along the lines of this:

class GameViewController: UIViewController {
    override func viewDidLoad() {
        super.viewDidLoad()

        if let scene = GameScene(fileNamed:"GameScene") {
            let skView                 = self.view as! SKView
            skView.showsFPS            = true
            skView.showsNodeCount      = true
            skView.ignoresSiblingOrder = true

            scene.scaleMode = .AspectFill
            scene.size      = skView.bounds.size

            skView.presentScene(scene)
        }
    }
}