public static SceneLoadHandle Load(string sceneName, object payload = null)
{
var operation = SceneManager.LoadSceneAsync(sceneName, LoadSceneMode.Additive);
var handle = new SceneLoadHandle(sceneName, LoadSceneMode.Additive, operation);
cargo.Add(handle, payload);
return(handle);
}
public static SceneUnloadHandle Unload(SceneLoadHandle loadedHandle)
{
var operation = SceneManager.UnloadSceneAsync(loadedHandle.Scene);
if (operation == null)
{
Debug.LogError($"cannot unload \"{loadedHandle.SceneName}\" scene as it is the only loaded scene currently. returning null handle.");
return(null);
}
var unloadHandle = new SceneUnloadHandle(loadedHandle.Scene, operation);
return(unloadHandle);
}
static void OnSceneLoaded(Scene scene, LoadSceneMode mode)
{
object payload = null;
// match the scene being loaded to a previously created handle
var handle = cargo.Keys.FirstOrDefault((h) => h.SceneName == scene.name && h.Mode == mode);
// if the handle is null the scene was not loaded using this handler, possibly it is the first scene being loaded
if (handle == null)
{
handle = new SceneLoadHandle(scene.name, mode, null);
handle.Scene = scene;
if (!firstSceneIsLoaded)
{
firstSceneIsLoaded = true;
}
else
{
Debug.LogWarning($"[SceneHandler] a scene named {scene.name} loaded with LoadSceneMode.{(mode == LoadSceneMode.Additive ? "Additive" : "Single")} was not found inside the dictionary");
}
}
// retrieve the payload
cargo.TryGetValue(handle, out payload);
cargo.Remove(handle);
// add scene to the list
handle.Scene = scene;
current.Add(handle);
// insert payload into the scene's root object
foreach (GameObject go in scene.GetRootGameObjects())
{
var root = go.GetComponent <SceneRoot>();
if (root != null)
{
handle.Root = root;
root.Handle = handle;
root.Payload = payload;
break;
}
}
SceneManager.SetActiveScene(scene);
}