从GameViewController到GameScene的访问按钮，标签和uiimageviews

问题描述：

在我的GameViewController中，我有按钮标签和一切设置。在viewDidLoad（）下，我将标签和所有内容设置为.hidden = true，我的gameOver内容位于我的GameScene文件中，我无法将按钮标签设置为.hidden = true。该按钮被称为backToMenu，如果我在GameViewController中的任意位置键入它，它会识别它，但是当我尝试在GameScene中输入backToMenu.hidden = false时，它会给我一个错误。有什么方法可以让我的他们在GameScene中也可以访问？从GameViewController到GameScene的访问按钮，标签和uiimageviews

GameScene代码：

func gameOver() { 

     bigBox.hidden = false 
     backToMenu.hidden = false 
     scoreLabel.hidden = false 

     var alrentSound = NSURL(fileURLWithPath: NSBundle.mainBundle().pathForResource("MenuSelect", ofType: "mp3")!) 

     AVAudioSession.sharedInstance().setCategory(AVAudioSessionCategoryPlayback, error: nil) 
     AVAudioSession.sharedInstance().setActive(true, error: nil) 

     var error: NSError? 
     screenTapped = AVAudioPlayer(contentsOfURL: alrentSound, error: &error) 
     screenTapped.prepareToPlay() 
     screenTapped.stop() 

     square1.removeFromParent() 
     wallGen.stopWalls() 
     //diamondGen.stopDiamonds() 
     movingGround.stop() 
     square1.stop() 
     //square2.stop() 


     // save current points label value 
     let pointsLabel = childNodeWithName("pointsLabel") as! PPPointsLabel 
     let highscoreLabel = childNodeWithName("highscoreLabel") as! PPPointsLabel 


     if highscoreLabel.number < pointsLabel.number { 
      highscoreLabel.setTo(pointsLabel.number) 

      let defaults = NSUserDefaults.standardUserDefaults() 
      defaults.setInteger(highscoreLabel.number, forKey: "highscore") 
     } 

    }

GameVieController代码：

@IBOutlet weak var bigBox: UIImageView! 
    @IBOutlet weak var backToMenu: UIButton! 
    @IBOutlet weak var scoreLabel: UILabel! 



    @IBAction func backToMenuButton(sender: AnyObject) { 

     let storyboard = UIStoryboard(name: "Main", bundle: nil) 
     let vc = storyboard.instantiateViewControllerWithIdentifier("MainMenuViewController") as! UIViewController 
     self.dismissViewControllerAnimated(true, completion: nil) 

     var alrentSound = NSURL(fileURLWithPath: NSBundle.mainBundle().pathForResource("MenuSelect", ofType: "mp3")!) 

     AVAudioSession.sharedInstance().setCategory(AVAudioSessionCategoryPlayback, error: nil) 
     AVAudioSession.sharedInstance().setActive(true, error: nil) 

     var error: NSError? 
     screenTapped = AVAudioPlayer(contentsOfURL: alrentSound, error: &error) 
     screenTapped.prepareToPlay() 
     screenTapped.play() 

    } 

    override func viewDidLoad() { 
     super.viewDidLoad() 

     bigBox.hidden = true 
     backToMenu.hidden = true 
     scoreLabel.hidden = true 


     // Configure the view 
     let skView = view as! SKView 


     // store a ref 
     // gameScene.gameDelegate = self 

     // Create and configure the scene 
     gameScene = GameScene(size: skView.bounds.size) 
     gameScene?.scaleMode = .AspectFill 

     // Present the scene 
     skView.presentScene(gameScene) 
}

答

这是因为变量在不同的班级。这样做的一种方式，将mabye是声明变量类变量，这样

class var myVariable = // whatever

，如果你想清理你的代码，你也可以有静态干将，这样

static func getMyVariable() -> MyVariableType 
{ 
    return myVariable 
}

通过这种方式，变量将是来自世界各地的访问，并访问他们，你型

GameViewController.getMyVariable()

或

GameViewController.myVariable

答

您需要设置一种方法来访问GameScene中的GameViewController方法。这可以通过创建对GameViewController的引用来完成。为此，我建议看看这篇文章：Segue in SKScene to UIViewController

从GameViewController到GameScene的访问按钮，标签和uiimageviews

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