无法在ViewController和SKScene之间设置委托

NotificationCenter.default.post(name: NSNotification.Name("MyNotification"), object: nil)

NotificationCenter.default.addObserver(self, selector: #selector(handleNotification), name: NSNotification.Name("MyNotification"), object: nil)

var dataHandler: ((String) -> Void)?

dataHandler?("Data to be passed")

protocol MyDelegate: class {
    func sendData(data: String)
}

class MyViewController: UIViewController, MyDelegate {
    // ...
    override func viewDidLoad() {
        super.viewDidLoad()
        let scene = MyScene()
        scene.delegate = self
        // ...
    }
    
    func sendData(data: String) {
        // Handle the data
    }
}

weak var delegate: MyDelegate?

// ...

delegate?.sendData(data: "Data to be passed")