Nonoku - Level Select Selections

Updated the Level Select screen to handle touch interactions. It’s now possible to tap on a puzzle image and be taken to that puzzle. I ended up using the userData: NSMutableDictionary property on the SKNode to both determine if the node the user tapped represents a puzzle, but also, which puzzle they tapped.

private func nodes(touches: Set<UITouch>) -> [SKNode]? {
    for touch in touches {
        let location = touch.location(in: currentScene)
        nodesTouched = currentScene.nodes(at: location)
        return nodesTouched.filter {
            guard let _ = $0.userData?[“puzzleName”] else { return false }
            return true
        }
    }
    return nil
}