小编mno*_*not的帖子

我正在使用带有swift的spritekit,我只是想尝试呈现一个新的场景......但是有些东西是错误的,并且会抛出错误.我很确定这是正确的语法,这真的让我陷入了一个循环.

这条线

    let skView = self.view as SKView

给我错误"SKView？不能转换为SKView

任何建议表示赞赏!*我目前的代码如下:

    override func touchesBegan(touches: Set<NSObject>, withEvent event: UIEvent) {
    for touch: AnyObject in touches{
        let location = touch.locationInNode(self)
        if(self.nodeAtPoint(location) == self.playButton)
            {
                var scene = PlayScene(size: self.size)
                let skView = self.view as SKView
                    // Configure the view.

                /* Sprite Kit applies additional optimizations to improve rendering performance */
                skView.ignoresSiblingOrder = true

                /* Set the scale mode to scale to fit the window */
                scene.scaleMode = .AspectFill

                skView.presentScene(scene)
            }
        }
    }