static Scene GetIsolationScene()
{
EditInIsolation edit = null;
Scene result = default(Scene);
// find the isolation scene
for (int i = 0; i < EditorSceneManager.sceneCount; i++)
{
result = EditorSceneManager.GetSceneAt(i);
GameObject[] roots = result.GetRootGameObjects();
edit = GetFrom(roots);
if (edit != null)
{
break;
}
}
// no isolation scene found, go ahead and make one
if (edit == null)
{
Scene oldScene = EditorSceneManager.GetActiveScene();
Scene scene = EditorSceneManager.NewScene(NewSceneSetup.EmptyScene, NewSceneMode.Additive);
EditorSceneManager.SetActiveScene(scene);
GameObject go = new GameObject("_EditInIsolationScene");
go.AddComponent <EditInIsolation>();
EditorSceneManager.SetActiveScene(oldScene);
result = scene;
}
return(result);
}
static void HandleChange(PlayModeStateChange aChange)
{
if (aChange == PlayModeStateChange.ExitingEditMode)
{
EditInIsolation.DisableObjects();
}
if (aChange == PlayModeStateChange.EnteredEditMode)
{
EditInIsolation.EnableObjects();
}
}
static EditInIsolation GetFrom(GameObject[] objs)
{
EditInIsolation result = null;
for (int i = 0; i < objs.Length; i++)
{
result = objs[i].GetComponent <EditInIsolation>();
if (result != null)
{
break;
}
}
return(result);
}
static void HandleChange()
{
// Disable objects -before- we start playing. Don't want Awake events.
if (!wasPlayingPre && EditorApplication.isPlayingOrWillChangePlaymode)
{
EditInIsolation.DisableObjects();
}
// Enable objects -after- playing has ended. Don't want Unity to restore original disabled state afterwards
if (wasPlayingPost && !EditorApplication.isPlaying)
{
EditInIsolation.EnableObjects();
}
wasPlayingPre = EditorApplication.isPlayingOrWillChangePlaymode;
wasPlayingPost = EditorApplication.isPlaying;
}
static EditInIsolation HasIsolationScene()
{
EditInIsolation edit = null;
// find the isolation scene
for (int i = 0; i < EditorSceneManager.sceneCount; i++)
{
Scene scene = EditorSceneManager.GetSceneAt(i);
GameObject[] roots = scene.GetRootGameObjects();
edit = GetFrom(roots);
if (edit != null)
{
break;
}
}
return(edit);
}
public static void EnableObjects()
{
EditInIsolation edit = HasIsolationScene();
if (edit == null)
{
return;
}
GameObject[] objs = GetIsolationScene().GetRootGameObjects();
// restore previous state
for (int i = 0; i < objs.Length; i++)
{
objs[i].SetActive(edit._wasEnabled[i]);
}
}
public static void DisableObjects()
{
EditInIsolation edit = HasIsolationScene();
if (edit == null)
{
return;
}
GameObject[] objs = GetIsolationScene().GetRootGameObjects();
edit._wasEnabled = new bool[objs.Length];
// disable all objects, but track their previous states in an object that will serialize/maintain the data
for (int i = 0; i < objs.Length; i++)
{
edit._wasEnabled[i] = objs[i].activeSelf;
objs[i].SetActive(false);
}
}