Question

我想在游戏结束后关闭一个SKScene并返回主菜单。

从MainViewController到GameViewController，我用prepareForSegue做了一个Storyboard Segue，将一些数据从MainViewController传递给GameViewController

在GameViewController中，我这样做：

    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

        skView.presentScene(scene)

        scene.viewController = self

    }
}

然后，我在GameScene.swift中声明了View Controller：

weak var viewController:GameViewController? = GameViewController()

我还在GameScene.swift中有以下函数来调用endGameScene.swift：

    func endGame() {
    // 1
    gameOver = true

    // 2
    // Save high score
    GameState.sharedInstance.saveState()

    // 3
    let reveal = SKTransition.fadeWithDuration(0.5)
    let endGameScene = EndGameScene(size: self.size)
    self.view!.presentScene(endGameScene, transition: reveal)

}

最后，endGameScene.swift像这样调用dismissViewControllerAnimated：

weak var viewController:GameViewController? = GameViewController()       

override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {
    // Transition back to the Game
    /*let reveal = SKTransition.fadeWithDuration(0.5)
    let gameScene = GameScene(size: self.size)
    self.view!.presentScene(gameScene, transition: reveal)*/

    print(viewController)
    self.viewController?.dismissViewControllerAnimated(true, completion: nil)

}

不幸的是，print（viewController）返回nil，当然，它不会关闭ViewController。

我在哪里弄错了？

Answer 1

创建这样的功能

Doctor    : JOHN A. BROWN

然后只需拨打func goToGameScene(){ let gameScene:GameScene = GameScene(size: self.view!.bounds.size) // create your new scene let transition = SKTransition.crossFadeWithDuration(1.5) // create type of transition (you can check in documentation for more transtions) gameScene.scaleMode = SKSceneScaleMode.Fill self.view!.presentScene(gameScene, transition: transition) }，即可进行此转换。

您无需关闭任何内容，因为每次转换时都会创建一个新场景。

Swift，SpriteKit，GameOver之后的GameViewController和MainViewController之间的争论

1 个答案: