我在屏幕上有三个相同类lineBlock
的节点MovableBlock
。我想旋转某人在屏幕上触摸的lineBlock
节点。
我已经解决了这个问题,因为在touchMoved中移动了正确的lineBlock
节点:
override func touchesMoved(_ touches: Set<UITouch>, with event: UIEvent?) {
touch = touches.first!
positionInScene = self.touch?.location(in: self)
let previousPosition = self.touch?.previousLocation(in: self)
let translation = CGVector(dx: (positionInScene?.x)! - (previousPosition?.x)!, dy: (positionInScene?.y)! - (previousPosition?.y)!)
if touchedNode?.name?.contains("LineBlock") == true {
(touchedNode as! MovableBlock).selected = true
(touchedNode as! MovableBlock).parent!.parent!.run(SKAction.move(by: translation, duration: 0.0))
}
}
但我在UIRotationRecognizer函数中无法做到这一点。在我的旋转函数中,它只是旋转第一个节点,无论我触摸哪个lineBlock(类MovableBlock):
func rotate(_ sender: UIRotationGestureRecognizer){
if lineBlock.selected == true {
lineBlock.run(SKAction.rotate(byAngle: (-(self.rotationRecognizer?.rotation)!*2), duration: 0.0))
rotationRecognizer?.rotation = 0
}
}
供参考,以下是我定义的touchNode(在touchBegan中):
touches: Set<UITouch>, with event: UIEvent?) {
touch = touches.first!
positionInScene = self.touch?.location(in: self)
touchedNode = self.atPoint(positionInScene!)
答案 0 :(得分:1)
UIGestureRecognizer
有一个location(in:UIView)
方法。您可以使用self.view?.convert(sender.location(in: self.view), to: self)
获取UIRotationGestureRecognizer
的位置,并使用与touchesBegan
中类似的逻辑。
convert(_:to:)
将确保该点位于场景的坐标空间中。