ios - 如何在 SpriteKit 和 SceneKit 中暂停游戏 - SWIFT

Question

我想通过触摸按钮来暂停我的游戏，但我无法让它工作。

我试过这个:

pause = SKSpriteNode (imageNamed: "pause.png")
pause.size = CGSizeMake(30, 30)
pause.position = CGPointMake(30, 30)
self.addChild(pause)

我正在尝试调用这样的函数:

func touchesBegin (touches: NSSet!, withEvent event: UIEvent!)   
{

    for touch: AnyObject in touches
    {
        let location = touch.locationInNode(self)
        if self.nodeAtPoint(location) == self.pause
        {
            let skView = self.view as SKView
            skView.paused = true
        }
    }

}

当我触摸暂停按钮时，没有任何反应......怎么了？

谢谢!

Answer 1

我自己解决了这个问题:

这里是我的代码函数:

  override func touchesBegan(touches: NSSet!, withEvent event: UIEvent!) 
  {
    var touch:UITouch = touches.anyObject() as UITouch
    pauseText.text = "Pause"
    pauseText.fontSize = 50
    pauseText.position = CGPointMake(self.frame.size.width/2, self.frame.size.height/2)

                   /* bouton play/pause */

    var locationPause: CGPoint = touch.locationInNode(self)
    if self.nodeAtPoint(locationPause) == self.pause
        {
        addChild(pauseText) // add the text
        pause.removeFromParent ()  // to avoid error when you touch again
        self.runAction (SKAction.runBlock(self.pauseGame))
        }

  }

要恢复游戏，您只需在最后一个“}”之前添加此代码:

    if self.nodeAtPoint(locationPause) == self.pauseText
        {
        pauseText.removeFromParent() // remove the pause text
        self.view.paused = false // resume the game
        addChild(pause) // add the pause button
        }

并在 SKScene 子类中添加此函数以在暂停期间添加标签:

func pauseGame()
    { 
    self.view.paused = true // to pause the game
    }