internal static GameObjectSceneRefCount *CreateOrRetainScene(Scene unityScene)
{
if (JobsUtility.IsExecutingJob)
{
throw new InvalidOperationException("You cannot CreateOrRetain a GameObjectSceneHandle from a Job");
}
if (!unityScene.IsValid())
{
throw new InvalidOperationException("Unity Scene is invalid.");
}
SceneEquatable unitySceneEquatable = unityScene;
// Lazy create the LoadedScenes container
GameObjectSceneManager.Initialize();
// First Check if we have it loaded
var loadedScenes = GameObjectSceneManager.LoadedScenes;
loadedScenes.TryGetValue(unityScene, out var unitySceneHandleIntPtr);
GameObjectSceneRefCount *unitySceneHandle = (GameObjectSceneRefCount *)unitySceneHandleIntPtr;
if (unitySceneHandle == null)
{
// Create a new handle
unitySceneHandle = (GameObjectSceneRefCount *)UnsafeUtility.Malloc(sizeof(GameObjectSceneRefCount), 16, Allocator.Persistent);
*unitySceneHandle = new GameObjectSceneRefCount(unityScene);
loadedScenes[unitySceneEquatable] = (IntPtr)unitySceneHandle;
}
return(unitySceneHandle);
}
private static void ReleaseScene(GameObjectSceneRefCount *unitySceneHandle)
{
if (JobsUtility.IsExecutingJob)
{
throw new InvalidOperationException("You cannot Release a GameObjectSceneHandle from a Job. This is likely because you are removing the last Scene Entity with a GameObject Scene reference from a job.");
}
var unityScene = unitySceneHandle->Scene;
var loadedScenes = GameObjectSceneManager.LoadedScenes;
if (!loadedScenes.ContainsKey(unityScene))
{
throw new InvalidOperationException($"Attempting to release a Scene that is not contained within LoadedScenes! {unityScene}");
}
loadedScenes.Remove(unityScene);
UnsafeUtility.Free(unitySceneHandle, Allocator.Persistent);
// This may have been unloaded outside of the GameObjectSceneSystem, so we just do nothing
if (unityScene.IsValid())
{
SceneManager.UnloadSceneAsync(unityScene);
}
}
