SpaceMonkey

###项目
Sprite Kit for Kids with Swift

###编译错误
编译环境：
Xcode Version 6.2 (6C131e)
OS X 10.9.5

override func viewWillLayoutSubviews() {
    super.viewDidLoad()

    let skView = self.view as! SKView
    if skView.scene == nil {

      let scene = GameScene(size:skView.frame.size)
      skView.showsFPS = true
      skView.showsNodeCount = true
      skView.showsPhysics = true
      skView.ignoresSiblingOrder = true
      scene.scaleMode = .AspectFill
      skView.presentScene(scene)

      playBackgroundMusic("BackgroundMusic.mp3")

    }

错误信息

Expected type after ‘as’

解决方法
as!===>as

override func touchesBegan(touches: Set<NSObject>, withEvent event: UIEvent) {
  // 1
  if (!gameOver) {
    if player.physicsBody?.dynamic == false {
      player.physicsBody?.dynamic = true
      touchToBeginLabel.hidden = true
      backgroundColor = SKColor.blackColor()

      runAction(SKAction.repeatActionForever(
        SKAction.sequence([
          SKAction.runBlock(spawnEnemy),
          SKAction.waitForDuration(1.0)])))
    }
    // 2
    jumpPlayer()

  }
    // 3
  else if (gameOver) {
    let newScene = GameScene(size: size)
    newScene.scaleMode = scaleMode
    let reveal = SKTransition.flipHorizontalWithDuration(0.5)
    view?.presentScene(newScene, transition: reveal)
  }
}

错误信息

Use of undeclared type ‘Set’

解决方法
Set<NSObject>===>NSObject