在 Swift 和 sprite kit 中如何检测滑动的精灵?

In Swift and sprite kit how to detect swiped sprites?

我在屏幕上有移动的精灵。现在我确实抓住了触摸,如果触摸了精灵 - 我将其删除。但我想把它刷掉。意思是 - 我滑动它(任何方向),如果它是一个正确的精灵(检查名称) - 删除它。

我有一个触摸代码,但我认为它不需要粘贴在这里,它很标准,滑动代码肯定会有所不同。

有什么建议吗?谢谢!

您可以使用 UISwipeGestureRecognizer 并获取开始触摸位置。之后,您可以检查哪个节点位于该位置。

像那样:

override func didMoveToView(view: SKView) {
    //create Swipe gesturerecognizer
    var swipe = UISwipeGestureRecognizer()
    //set Direction to Left
    swipe.direction = .Left

    //Call method "swipe" if swipe is done
    swipe.addTarget(self, action: "swipe:")

    self.view!.addGestureRecognizer(swipe)
}

func swipe(sender: UISwipeGestureRecognizer){

    //get amount of touches in swipe
    var touches = sender.numberOfTouches()


    //loop through touches
    for touch in 0..<touches{
        var location = sender.locationOfTouch(touch, inView: self.view)
        //Get the node at the location of the touch
        var swipedNode = self.nodeAtPoint(location)
    }
}

试试这个:

override func touchesMoved(touches: Set<NSObject>, withEvent event: UIEvent) 
{
    let touch = touches.first as! UITouch
    let location = touch.locationInNode(self)

    if sprite.frame.contains(location)
    {
     //remove sprite here
    }
}

此外,如果您希望它在触摸时被删除,也请添加:

override func touchesBegan(touches: Set<NSObject>, withEvent event: UIEvent) 
{
    let touch = touches.first as! UITouch
    let location = touch.locationInNode(self)

    if sprite.frame.contains(location)
    {
     //remove sprite here
    }
}