xcode - “再玩一次”按钮无法正常工作

Question

我在游戏中制作了一个重玩按钮，并使用SKTransition重新启动游戏。当我触摸“再次播放”按钮时，新场景就会出现。但这个场景的物体比上一个场景的物体大。场景被卡住了。当我触摸“再次玩”按钮时，我无法玩游戏。我应该怎么办？这是我关于按钮和重新启动场景的所有代码:

let playAgain: UIButton = UIButton(frame: CGRectMake(10, 0, 450, 1000))

class GameScene: SKScene {
func buttonPressed(sender: UIButton) {
    let pransition = SKTransition.fadeWithDuration(1.0) //create a transition
    let gamePlayScene = GameScene(fileNamed: "GameScene") // create a new scene from your file (let variableName = NameOfGameFile(fileNamed: "NameOfGameFile")
    self.view?.presentScene(gamePlayScene!, transition: pransition) // present the scene with the transition
}



override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {
    for touch:AnyObject in touches{...



    if(..){...}
    else{
            playAgain.setTitle("Play Again", forState: UIControlState.Normal)
            playAgain.titleLabel!.font = UIFont(name: "Helvetica", size: 50)

            playAgain.addTarget(self, action: "buttonPressed:", forControlEvents: .TouchUpInside)
            playAgain.tag = 1
            self.view!.addSubview(playAgain)

Answer 1

您的问题是，当您通过播放按钮创建到游戏场景的过渡时，您没有设置场景大小。我刚刚插入了你的代码，它就按照你说的做了。快速地，在创建过渡时设置场景的大小和纵横比是一个很好的做法，比如说回到游戏或从游戏到结束场景，例如获胜场景或宽松场景等。简单的方法是是在声明游戏场景常量后添加场景长宽比，如下代码块:

let pransition = SKTransition.fadeWithDuration(1.0)
    let gamePlayScene = GameScene(fileNamed: "GameScene")
    gamePlayScene!.scaleMode = SKSceneScaleMode.AspectFill
    self.view?.presentScene(gamePlayScene!, transition: transition)
    self.playAgain.removeFromSuperview()

我通常喜欢为游戏的戏剧性方面创建等待一两秒的时间，因此我使用以下内容，这与您所做的非常相似，但在场景触发之前会产生一些延迟，以下是我用的，如果你愿意的话可以随意更改。

let wait = SKAction.waitForDuration(1.5)
    let theGameScene = GameScene(size: self.size)
    theGameScene.scaleMode = SKSceneScaleMode.AspectFill
    let theTransition = SKTransition.fadeWithDuration(1.0)
    let changeScene = SKAction.runBlock{
        self.scene?.view?.presentScene(theGameScene, transition: theTransition)
    }

    let sequence = SKAction.sequence([wait, changeScene])
    self.runAction(SKAction.repeatAction(sequence, count: 1))

祝你好运，继续编码并提出问题。