Can't deserialize DynamicScene? How to load from string?

[simbleau]

Bevy version

0.15

Problem

How am I supposed to load a DynamicScene from a string?

e.g. I have a string, such as:

(
  resources: {},
  entities: {
    4294968455: (
      components: {
        "bevy_transform::components::transform::Transform": (
          translation: (0.0, 0.0, 0.0),
          rotation: (0.0, 0.0, 0.0, 1.0),
          scale: (1.0, 1.0, 1.0),
        ),
        "shared::plugins::map_file::MyComponent": ("Test component"),
      },
    ),
  },
)

Solution

(This doesn't work because DynamicScene doesn't implement Deserialize)

struct LoadScene {
    scene: String,
}

impl Command for LoadScene {
    fn apply(self, world: &mut World) {
        let asset_server = world.resource::<AssetServer>();
        let scene: DynamicScene = ron::from_str(&self.scene).unwrap();
        let handle = asset_server.add(scene);
        let root = DynamicSceneRoot(handle);
        world.spawn(root);
    }
}

[MrGVSV]

You have to deserialize the scene with its dedicated deserializer: SceneDeserializer.

Or you can load it from a file like in this example.