我正在尝试从SKScene(SpriteKit)向SCNScene(SceneKit)传递命令

protocol SKSceneDelegate: AnyObject {
    func commandReceived(command: String)
}

class MySKScene: SKScene {
    weak var delegate: SKSceneDelegate?
    
    func receiveEvent() {
        // 处理事件
        // ...
        
        // 调用代理方法传递命令
        delegate?.commandReceived(command: "Some command")
    }
}

class MySCNScene: SCNScene, SKSceneDelegate {
    func commandReceived(command: String) {
        // 处理接收到的命令
        // ...
    }
}

let skScene = MySKScene(size: CGSize(width: 1024, height: 768))
let scnScene = MySCNScene()

skScene.delegate = scnScene