ios - 快速更改播放器

Question

我正在游戏中工作，遇到一个问题，我设置了两个按钮，当我单击第一个按钮时，它会生成第一个玩家，当我单击第二个按钮时，它会删除第一个玩家并生成第二个玩家和所有东西这很好，但问题是当我单击第一个按钮时，它只会生成一个节点。

如何让它生成一个节点，然后当我单击不生成电话时，我单击另一个按钮，第二个按钮也是如此，这是我的代码帮助，请..

// Set button One

    ButtoneOne = UIButton(frame: CGRect(x: 0, y: 0, width: frame.size.width / 25, height: frame.size.height / 20))
    ButtoneOne.center = CGPoint(x: view.frame.size.width / 6.5, y: view.frame.size.height / 2)
    ButtoneOne.setImage(ButtonTextureOne, forState: .Normal)
    ButtoneOne.addTarget(self, action: #selector(Play.PlayesrOne), forControlEvents: UIControlEvents.TouchUpInside)
    self.view?.addSubview(ButtoneOne)

func PlayesrOne() {

    Player.removeFromParent()
    PlayerTwo.removeFromParent()

    PlayerOne = SKSpriteNode(imageNamed: "PlayerOne")
    PlayerOne.size = CGSize(width: 150, height: 200)
    PlayerOne.position = CGPoint(x: frame.size.width / 2, y: frame.size.height / 2)
    PlayerOne.zPosition = -1
    self.addChild(PlayerOne)


}

Answer 1

请记住，在 iOS 中(不仅是在 iOS 中)，将属性大写是一种不好的态度。

我不想重构你的所有代码，我会尽力维护你的结构和方法:

buttoneOne = UIButton(frame: CGRect(x: 0, y: 0, width: frame.size.width / 25, height: frame.size.height / 20))
buttoneOne.center = CGPoint(x: view.frame.size.width / 6.5, y: view.frame.size.height / 2)
buttoneOne.setImage(ButtonTextureOne, forState: .Normal)
buttoneOne.addTarget(self, action: #selector(Play.PlayesrOne), forControlEvents: UIControlEvents.TouchUpInside)
self.view?.addSubview(buttoneOne)

func makePlayerOne() {
     if (self.childNodeWithName("playerOne") == nil) {
        playerOne = SKSpriteNode(imageNamed: "PlayerOne")
        playerOne.size = CGSize(width: 150, height: 200)
        playerOne.position = CGPoint(x: frame.size.width / 2, y: frame.size.height / 2)
        playerOne.zPosition = -1
        playerOne.name = "playerOne"
        self.addChild(playerOne)
     }
}

func PlayesrOne() {
   player.removeFromParent()
   playerOne.removeFromParent()
   playerTwo.removeFromParent()
   makePlayerOne()
}

你可以为player2的spawn做同样的事情..