ios - SpriteKit 滚动 SKCameraNode 非常有问题

Question

当我用我的代码滚动浏览这个场景时，它看起来非常有问题。一切都很快地跳来跳去，直到你放手。有更好的方法吗？

var lastTouch: CGPoint!
override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {
    let touch : UITouch = touches.first!
    lastTouch = touch.locationInNode(self)
}
override func touchesMoved(touches: Set<UITouch>, withEvent event: UIEvent?) {
    let touch : UITouch = touches.first!
    let touchLocation : CGPoint = touch .locationInNode(self)
    self.camera!.position = CGPointMake(self.camera!.position.x + (lastTouch!.x - touchLocation.x), self.camera!.position.y + (lastTouch!.y - touchLocation.y))
    lastTouch = touchLocation;
}
override func touchesEnded(touches: Set<UITouch>, withEvent event: UIEvent?) {
    let touch : UITouch = touches.first!
    let touchLocation : CGPoint = touch .locationInNode(self)
    self.camera!.position = CGPointMake(self.camera!.position.x + (lastTouch!.x - touchLocation.x), self.camera!.position.y + (lastTouch!.y - touchLocation.y))
    print(touches.count)
    lastTouch = touchLocation;
}

如果真的有必要，我可以上传 gif/视频。这只是 SKCameraNode 的一个错误，因为它太新了？如果有人知道我做错了什么，我很乐意听到。谢谢!

编辑:Click here to see a video of the issue

Answer 1

我找到了答案，因为这是一个非常简单的错误。当相机节点移动时，您触摸的位置也会移动。我创建了一个随相机移动的节点，并获取触摸在该节点中的位置。