Swift 暂停无尽的 SKAction

Question

我目前正在制作飞扬的小鸟克隆，并且在我的 didMoveTOView 方法中有一个 SKAction (runActionForever)。但是，一旦我死了，我想终止那个动作，然后弹出一个屏幕。

override func didMoveToView(view: SKView) {
     var endlessAction = SKAction.runActionForever(spawn, delay)
 }

 func died() {
     endlessAction..... ?
     screenDied.position = CGPoint(self.frame.x / 2, self.frame.y / 2)
     addChild(screenDied)
 }

现在，在另一个函数 died() 中，我该如何结束这个动作？ - 这样我就可以制作一个屏幕弹出窗口。

谢谢！

Answer 1

SKAction Class 参考：http://goo.gl/w6ZEFI

SKNode Class 参考：http://goo.gl/Wn9xGw

向节点添加操作：http://goo.gl/xR9Tfb

To cancel actions that a node is running, call its removeAllActions method. All actions are removed from the node immediately. If a removed action had a duration, any changes it already made to the node remain intact, but further changes are not executed.

Normally, you can’t see which actions a node is executing and if you want to remove actions, you must remove all of them. If you need to see whether a particular action is executing or remove a specific action, you must use named actions. A named action uses a unique key name to identify the action. You can start, remove, find, and replace named actions on a node.

如果您需要从节点中删除所有操作，可以使用removeAllActions 方法。但是，如果您需要删除特定操作，则需要使用名为 runAction:withKey:.

的方法运行它

如果具有相同键的操作已经运行ning，则在添加新操作之前将其删除。

此外，您可以使用 actionForKey: 查看某个操作是否在特定节点上运行ning。

然后使用removeActionForKey:删除操作。

PS ：如果您想暂停操作和节点本身，您可能需要在节点上查找 paused 属性 .

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