ios - SKAction.waitForDuration在SpriteKit中不起作用

我一直在为这个看似简单的功能而发愁，我正试图在SpriteKit和Swift中构建一个游戏。我已经找过了，不明白为什么这不管用。
我想做的是：
当玩家接触到敌人或障碍物时，我想加载并播放一个爆炸动画createExplosion（）（动画在0.5秒内完成），然后进入gameOverAction（）。问题是，只显示动画的第一帧，然后进入gameOverAction（）。
我试图创建一个SKAction.sequence，但是Xcode不喜欢我在序列中调用函数，所以我找到了SKAction.waitForDuration。问题是，它对代码的执行没有影响。
怎么做才是正确的？

func collisionWithPlayer(playerObject: SKSpriteNode) {
    runAction(SKAction.playSoundFileNamed("spaceExplosion.mp3", waitForCompletion: false))
    createExplosion(playerObject)
    playerObject.removeFromParent()
    runAction(SKAction.waitForDuration(NSTimeInterval(0.5)))
    gameOverAction()
    }

下面是gameOverAction（）的代码：

func gameOverAction()   {

    backgroundMusicPlayer.stop()

    globalHighScore = NSUserDefaults.standardUserDefaults().objectForKey("GameHighScore") as? Int

    localHighScore = self.monstersDestroyed

    if globalHighScore == nil {
        globalHighScore = localHighScore
    }

    globalHighScore = self.recordHighScore(localHighScore, highScore: globalHighScore!)
    println(globalHighScore!)

    let reveal = SKTransition.fadeWithDuration(1.0)
    let gameOverScene = GameOverScene(size: self.size, won: false)
    self.view?.presentScene(gameOverScene, transition: reveal)
}

func createExplosion(object: SKSpriteNode) -> SKSpriteNode {

    var explosionArray = Array<SKTexture>()
    var explosionSprite = SKSpriteNode()

    explosionArray.append(SKTexture(imageNamed: "explosionSprite01.png"))
    explosionArray.append(SKTexture(imageNamed: "explosionSprite02.png"))
    explosionArray.append(SKTexture(imageNamed: "explosionSprite03.png"))
    explosionArray.append(SKTexture(imageNamed: "explosionSprite04.png"))
    explosionArray.append(SKTexture(imageNamed: "explosionSprite05.png"))
    explosionArray.append(SKTexture(imageNamed: "explosionSprite06.png"))
    explosionArray.append(SKTexture(imageNamed: "explosionSprite07.png"))
    explosionArray.append(SKTexture(imageNamed: "explosionSprite08.png"))
    explosionArray.append(SKTexture(imageNamed: "explosionSprite09.png"))

    let animateAction = SKAction.animateWithTextures(explosionArray, timePerFrame: 0.05)
    explosionSprite = SKSpriteNode(texture:explosionArray[0])
    explosionSprite.position = CGPoint(x: object.position.x + 10.0, y: object.position.y)
    addChild(explosionSprite)
    explosionSprite.runAction(SKAction.sequence([animateAction, SKAction.removeFromParent()]))
    return(explosionSprite)
}

最佳答案

SKAction可以用来在操作序列中引入延迟，但它不会阻止线程调用，因此您的waitForDuration操作将设置为在节点上运行，但随后将立即调用runAction。
您可以使用waitForDuration的完成块在操作完成后执行gameOverAction()-

func collisionWithPlayer(playerObject: SKSpriteNode) {
    var actions = Array<SKAction>();
     actions.append(SKAction.playSoundFileNamed("spaceExplosion.mp3", waitForCompletion: false))
     actions.append(SKAction.waitForDuration(NSTimeInterval(0.5)))
     actions.append(SKAction.removeFromParent())
     createExplosion(playerObject)
     let sequence = SKAction.sequence(actions);
     playerObject.runAction(sequence,completion: { () -> Void in
         self.gameOverAction()
     })
}

根据runAction:completion的内容，也可以将其合并到序列中，并消除对gameOverAction()的需要

关于ios - SKAction.waitForDuration在SpriteKit中不起作用，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/28911737/