Xcode 9.1（和9.2） - 引用的精灵没有执行在场景编辑器中添加的动作 [英] Xcode 9.1 (and 9.2) - Referenced sprites are not executing Actions added in Scene Editor

问题描述

我在使用SpriteKit场景编辑器时遇到了一些意想不到的行为，并想知道是否有其他人遇到同样的问题。

I have come across some unexpected behaviour when using the SpriteKit Scene Editor, and wonder if anyone else is having the same issue.

我在场景中创建了一个精灵并添加了动作以使用场景编辑器移动它。单击编辑器上的动画按钮时，动作可以正常运行。我使用场景编辑器中的SKReferenceNode对象将此场景的引用添加到主场景，并且精灵在编辑器中按预期显示在主场景中。然而，当我构建并运行应用程序时，精灵会出现但没有动作运行。我在Xcode 9.2 beta上试过这个并得到了相同的结果。
如果我直接从主视图控制器加载精灵场景，所有的动作按预期执行，所以它似乎是引用节点的问题。
我还发现，如果我在主场景swift类中覆盖didMove（to :)，并在其中放置一个断点，那么只要在它到达断点时点击继续，所有Actions按照预期在引用的精灵上播放。如果我禁用断点，则没有操作在引用的精灵上播放。
（所以我的解决方法是简单地使用断点，然后按下继续按钮）

I created a sprite in a scene and added Actions to move it around using the Scene Editor. The Actions play fine when I click the animate button on the editor. I add a reference to this scene to the main scene using the SKReferenceNode object in the Scene Editor, and the sprite appears in the main scene as expected in the Editor. When I build and run the app however, the sprite appears but no Actions run. I have tried this on the Xcode 9.2 beta and get the same result. If I load the sprite scene directly from the main view controller, all the Actions execute as expected, so it seems to be an issue with referenced nodes. I also found that if I override didMove(to:) in the main scene swift class, and put a breakpoint in it, then just hit continue when it hit the breakpoint, all Actions play on referenced sprites as expected. If I disable the breakpoint, no Actions play on referenced sprites. (So my workaround is to simply use the breakpoint, and hit the continue button)

另一个有趣的观察结果。我打开了一个使用旧版Xcode创建的示例项目，并且引用的sprite执行了他们的Action。我将这个旧的SKS文件复制到我的项目中并且Actions工作正常......直到我编辑了SKS文件（添加了另一个Action），然后它们再也没有工作过。

Another interesting observation. I opened a sample project created with an older version of Xcode, and referenced sprites executed their Actions fine. I copied this older SKS file into my project and Actions worked fine...until I edited the SKS file (added another Action), then they never worked again.

推荐答案

我遇到了同样的问题，这让我发疯了。我尝试在场景和各个精灵上设置.isPaused。除了插入断点方法之外什么都没有用。这不是解决方案。

I had this same problem and it was driving me crazy. I tried setting the .isPaused on the scene and on the individual sprites. Nothing worked except the insert breakpoint method. That is not a solution.

我发现如果我将暂停设置为true和false（这是我想要的值）那么它适用于所有精灵。

What I discovered was if I set the is paused to true and false (which is the value I wanted) then it worked for all the sprites.

 override func didMove(to view: SKView) {
    self.isPaused = true
    self.isPaused = false
}

这是场景编辑器中一个非常烦人的错误，应该修复。

This is a pretty annoying bug in scene editor that should be fixed.

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