xcode - 如何使用 MouseDown 更改场景

Question

我正在尝试创建一个游戏菜单，我得到了这样的东西

class StartGame: SKScene {
    override func didMoveToView(view: SKView) {
        backgroundColor = SKColor.blackColor()
        let startButton = SKSpriteNode(imageNamed: "startGame")
        startButton.position = CGPointMake(size.width/2, size.height/2)
        startButton.name = "startButton"
        addChild(startButton) 
    }

    override func mouseDown(theEvent: NSEvent) {
        if(  ...  )
    }
}

当然会有更多的按钮，比如“保存游戏”、“退出”之类的。这是我的问题。我想通过单击名为“startGame”的按钮将场景从 StartGame 更改为 GameScene

Answer 1

在StartGame中实现mouseDown，如下所示:

override func mouseDown(theEvent: NSEvent) {
    let location = theEvent.locationInNode(self)
    let node = self.nodeAtPoint(location)

    if (node.name == "startButton") {
        let nextScene = GameMenu(size: self.size)
        scene?.view?.presentScene(nextScene, transition: SKTransition.crossFadeWithDuration(1))
    }
}