passing info from collectionView to gameScene

Question

I have created a game using SpriteKit (GameScene and GameViewController) and Objective-C. Everything there works fine. Within the same App I have created a UIViewController and

Answer 1

Couple of ways to do this. One of them is using NSUserDefaults.

To store data in NSUserDefaults, do this:

// object can be almost anything. Strings, arrays, dictionaries...

NSString *object = @"WellDone";

NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
[defaults setObject:object forKey:@"Hamburger"];
[defaults synchronize];

To read NSUserDefaults, do this:

NSString *myString = [[NSUserDefaults standardUserDefaults] objectForKey:@"Hamburger"];

The key being that you use the same key as when you created it.

And of course, read the docs (blah,blah, blah).

Answer 2

I approached this in a different way. Basically:

1. Cell has the skview and loads and presents scene.
2. Scene exposes properties (like a label for the months in the example)
3. In the cellForItemAt of the collectionView datasource, I instantiate the scene and just use the exposed properties.

Here is in code:

Step 1:

class GameCell: UICollectionViewCell {

    @IBOutlet weak var myskview: SKView!

    override func awakeFromNib() {
        super.awakeFromNib()
        // Initialization code

        if let scene = SKScene(fileNamed: "MyScene") as? MyScene{
            scene.scaleMode = .aspectFill
            myskview.presentScene(scene)
        }
    }
}

Step 2:

class MyScene: SKScene {
    var gameLabel: SKLabelNode!
    var monthValue: String?
    var bird: SKSpriteNode?
    var floor: SKSpriteNode?
    var bgColor: UIColor?
    let birdCategory: UInt32 = 0x1 << 0
    let floorCategory: UInt32 = 0x1 << 1

    override func didMove(to view: SKView) { }

Step 3:

let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "GameCell", for: indexPath) as! GameCell
let scene = cell.myskview.scene as! MyScene
scene.gameLabel.text = monthComponents[indexPath.row]

Just don't forget to create the label inside the scene using:

gameLabel = scene?.childNode(withName: "gameLabel") as! SKLabelNode

You can check the final result in my git: https://github.com/tennydesign/spriteKitAndCollectionView

Just pardon my dust. =)