/// <summary>
/// Returns true if this GameObject exists in a Scene.
/// <para>Use this to distinguish between e.g. regular GameObjects and Prefab Asset GameObjects.</para>
/// </summary>
public static bool ExistsInScene(this GameObject gameObject)
{
bool inScene;
GameObjectEnvironments environment = gameObject.GetGameObjectEnvironment();
switch (environment)
{
default:
case GameObjectEnvironments.Scene:
case GameObjectEnvironments.PrefabInstance:
inScene = true;
break;
case GameObjectEnvironments.PrefabAsset:
case GameObjectEnvironments.PrefabStage:
case GameObjectEnvironments.NestedPrefabStage:
case GameObjectEnvironments.PrefabImport:
case GameObjectEnvironments.PreviewScene:
inScene = false;
break;
}
return(inScene);
}
/// <summary>
/// In Edit mode, marks the scene containing this GameObject as dirty.
/// <para>In Prefab mode, marks the prefab asset containing this GameObject as dirty.</para>
/// <para>In Play mode, does nothing.</para>
/// </summary>
/// <returns>True if the object was marked dirty, false otherwise.</returns>
public static bool MarkSceneDirty(this GameObject gameObject)
{
#if UNITY_EDITOR
//skip in play mode
if (Application.isPlaying)
{
return(false);
}
GameObjectEnvironments environment = gameObject.GetGameObjectEnvironment();
switch (environment)
{
//if the GameObject is being edited as part of a Scene:
case GameObjectEnvironments.Scene:
case GameObjectEnvironments.PrefabInstance:
//mark the scene containing this GameObject as dirty
EditorSceneManager.MarkSceneDirty(gameObject.scene);
return(true);
//if the GameObject is being edited as part of a Prefab:
case GameObjectEnvironments.PrefabStage:
case GameObjectEnvironments.NestedPrefabStage:
//mark the Prefab containing this GameObject as dirty
//do this by using the currently open PrefabStage scene
PrefabStage prefabStage = PrefabStageUtility.GetCurrentPrefabStage();
if (prefabStage != null)
{
EditorSceneManager.MarkSceneDirty(prefabStage.scene);
return(true);
}
else
{
return(false);
}
//do nothing if the GameObject is from some other environment
case GameObjectEnvironments.PrefabAsset:
case GameObjectEnvironments.PrefabImport:
case GameObjectEnvironments.PreviewScene:
default:
return(false);
}
#else
//do nothing outside editor
return(false);
#endif
}