Question

我正在尝试创建一个iOS游戏，我已经拥有它，以便在触摸和移动项目时将其拖动。拖动时，鼠标会捕捉到精灵的中心。我怎么能这样做才不会发生这种情况？

Here是正在发生的事情的一个例子。

以下是处理触摸输入的功能

override func touchesBegan(touches: Set<NSObject>, withEvent event: UIEvent) {

    var papers = 0

    for touch in (touches as! Set<UITouch>) {
        let location = touch.locationInNode(self)
        let touchedNode = nodeAtPoint(location)

        if ((touchedNode.name?.contains("paper")) != nil) {

            touchedNode.position = location
            touchedNode.position.x = CGRectGetMidX(self.frame)
        }
    }
}
override func touchesMoved(touches: Set<NSObject>, withEvent event: UIEvent) {
        for touch: AnyObject in touches {
            let location = touch.locationInNode(self)
            let touchedNode = nodeAtPoint(location)

            if ((touchedNode.name?.contains("paper")) != nil) {

                touchedNode.position = location
                touchedNode.position.x = CGRectGetMidX(self.frame)
            }
        }
    }

override func touchesEnded(touches: Set<NSObject>, withEvent event: UIEvent) {
    for touch: AnyObject in touches {
        let location = touch.locationInNode(self)
        let touchedNode = nodeAtPoint(location)
        if ((touchedNode.name?.contains("paper")) != nil) {
            touchedNode.zPosition = 0
            touchedNode.position.x = CGRectGetMidX(self.frame)
        }
    }
}

P.S。 contains是String类的扩展，用于检查子字符串是否在字符串

中

提前致谢！

SpriteKit - 鼠标捕捉到Sprite Drag上的中心

0 个答案: