从另一个包中加载一个spritekit场景? [英] Load a spritekit scene from another bundle?

问题描述

我正在使用swift 4.2制作SpriteKit框架，并希望包含一些用于场景和动作的.sks文件.我尝试使用以下代码从捆绑包中加载场景:

I am making a SpriteKit framework using swift 4.2 and want to include some .sks files for scenes and actions. I have tried to load the scene from the bundle using the code below:

class func newGameScene() -> GameScene {

guard let gameScenePath = Bundle(for: self).path(forResource: "GameScene", ofType: "sks") else { assert(false) }

guard let gameSceneData = FileManager.default.contents(atPath: gameScenePath) else { assert(false) }

let gameSceneCoder = NSKeyedUnarchiver(forReadingWith: gameSceneData)

guard let scene = GameScene(coder: gameSceneCoder) else { assert(false) }


// Set the scale mode to scale to fit the window
scene.scaleMode = .aspectFill

return scene

}

我加载了场景并展示了它. (此代码主要来自苹果公司用于SpriteKit的模板，因为我正在测试此问题.)

I load the scene and present it. (This code is mostly from Apple's template for SpriteKit as Im testing this issue.)

guard let view = view else {
      return nil
    }

    let scene = GameScene.newGameScene()

    view.presentScene(scene)

    view.ignoresSiblingOrder = true
    view.showsFPS = true
    view.showsNodeCount = true
    return nil

在这种情况下，GameScene.sks和代码与Apples模板相同.该代码和.sks资产位于动态框架中，并导入到另一个项目中.

The GameScene.sks and the code is unchanged from Apples template in this case. This code and the .sks assets are in the dynamic framework and imported into another project.

当框架将场景加载到视图中时，我通过了它，它显示了fps和节点数，但没有显示"Hello，World！".文本.

When having the framework load the scene into a view I pass it, it shows the fps and node count but not the "Hello, World!" text.

在下面的代码(同样也是从模板复制的)中，一个断点表示鼠标悬停时不会调用这些代码.

In the code below, also copied from the template, a break point shows that these are not called when mousing down.

    #if os(OSX)
// Mouse-based event handling
extension GameScene {

  override func mouseDown(with event: NSEvent) {
    if let label = self.label {
      label.run(SKAction.init(named: "Pulse")!, withKey: "fadeInOut")
    }
    self.makeSpinny(at: event.location(in: self), color: SKColor.green)
  }

  override func mouseDragged(with event: NSEvent) {
    self.makeSpinny(at: event.location(in: self), color: SKColor.blue)
  }

  override func mouseUp(with event: NSEvent) {
    self.makeSpinny(at: event.location(in: self), color: SKColor.red)
  }

}
#endif

我知道这必须与SpritKit如何加载场景但找不到解决方案有关.我必须使用NSKeyedUnarchiver，因为SpritKit内置了文件初始化程序:

I know it must have to do with how SpritKit loads the scene but cannot find a solution. I have to use an NSKeyedUnarchiver becuase SpritKit's built in file initializer:

GameScene(fileNamed: "GameScene")

仅从主捆绑包加载.

现在，在上文中，我假设可以使用编码器加载文件，但是Tomato指出，最有可能没有使用编码器保存sks.在这种情况下，可能无法使用apple提供的api从sprite-kit中的另一个包中加载sks文件.答案可能不包括编码器.

Now in the above I assumed that the file can be loaded by using a coder but Tomato made the point that sks most likely was not saved using a coder. In that case, It may be impossible to load an sks file from another bundle in sprite-kit using the provided api from apple. The answer may not include coders.

推荐答案

就像我认为let gameSceneCoder = NSKeyedUnarchiver(forReadingWith: gameSceneData)不能为您创建合适的编码器一样.

Just as I thought let gameSceneCoder = NSKeyedUnarchiver(forReadingWith: gameSceneData) was not creating a proper coder for you.

只需

guard let scene = NSKeyedUnarchiver.unarchiveObject(with: gameSceneData) as? SKScene
        else{
            assert(false)
    }

这将为您正确地取消存档文件.

This will unarchive the file properly for you.

注意，如果要使用GameScene，请确保在SKS文件的自定义类中设置了GameScene

Note, if you want to use GameScene, make sure GameScene is set in the custom class of the SKS file

这篇关于从另一个包中加载一个spritekit场景?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！