我所要做的就是能够在屏幕上拖放一个精灵.我试过以下代码:
override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {
}
override func touchesMoved(touches: Set<UITouch>, withEvent event: UIEvent?) {
for touch in (touches ) {
let location = touch.locationInNode(self)
if ball.containsPoint(location) {
ball.position = location
}
}
}
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这段代码确实有效,但是,当我快速拖动球时,我猜它会检测到"球"不再包含点"位置"并且球停止,这意味着我再次接球.我希望球能够快速响应我的触球,这样球就不会停止移动.我该怎么做?