// this method corrects the IDs for photonviews in the scene and in prefabs
// make sure prefabs always use viewID 0
// make sure instances never use a owner
// this is a editor class that should only run if not playing
internal static void HierarchyChange()
{
if (Application.isPlaying)
{
//Debug.Log("HierarchyChange ignored, while running.");
CheckSceneForStuckHandlers = true; // done once AFTER play mode.
return;
}
if (CheckSceneForStuckHandlers)
{
CheckSceneForStuckHandlers = false;
PhotonNetwork.InternalCleanPhotonMonoFromSceneIfStuck();
}
HashSet <PhotonView> pvInstances = new HashSet <PhotonView>();
HashSet <int> usedInstanceViewNumbers = new HashSet <int>();
bool fixedSomeId = false;
//// the following code would be an option if we only checked scene objects (but we can check all PVs)
//PhotonView[] pvObjects = GameObject.FindSceneObjectsOfType(typeof(PhotonView)) as PhotonView[];
//Debug.Log("HierarchyChange. PV Count: " + pvObjects.Length);
string levelName = SceneManagerHelper.ActiveSceneName;
#if UNITY_EDITOR
levelName = SceneManagerHelper.EditorActiveSceneName;
#endif
int minViewIdInThisScene = PunSceneSettings.MinViewIdForScene(levelName);
//Debug.Log("Level '" + Application.loadedLevelName + "' has a minimum ViewId of: " + minViewIdInThisScene);
PhotonView[] pvObjects = Resources.FindObjectsOfTypeAll(typeof(PhotonView)) as PhotonView[];
foreach (PhotonView view in pvObjects)
{
// first pass: fix prefabs to viewID 0 if they got a view number assigned (cause they should not have one!)
if (PhotonEditorUtils.IsPrefab(view.gameObject))
{
if (view.ViewID != 0 || view.prefixField != -1)
{
#if !UNITY_2018_3_OR_NEWER
Debug.LogWarning("PhotonView on persistent object being fixed (id and prefix must be 0). Was: " + view);
#endif
view.ViewID = 0;
view.prefixField = -1;
EditorUtility.SetDirty(view); // even in Unity 5.3+ it's OK to SetDirty() for non-scene objects.
fixedSomeId = true;
}
}
else
{
// keep all scene-instanced PVs for later re-check
pvInstances.Add(view);
}
}
Dictionary <GameObject, int> idPerObject = new Dictionary <GameObject, int>();
// second pass: check all used-in-scene viewIDs for duplicate viewIDs (only checking anything non-prefab)
// scene-PVs must have user == 0 (scene/room) and a subId != 0
foreach (PhotonView view in pvInstances)
{
if (view.OwnerActorNr > 0)
{
Debug.Log("Re-Setting Owner ID of: " + view);
}
view.Prefix = -1; // TODO: prefix could be settable via inspector per scene?!
if (view.ViewID != 0)
{
if (view.ViewID < minViewIdInThisScene || usedInstanceViewNumbers.Contains(view.ViewID))
{
view.ViewID = 0; // avoid duplicates and negative values by assigning 0 as (temporary) number to be fixed in next pass
}
else
{
usedInstanceViewNumbers.Add(view.ViewID); // builds a list of currently used viewIDs
int instId = 0;
if (idPerObject.TryGetValue(view.gameObject, out instId))
{
view.InstantiationId = instId;
}
else
{
view.InstantiationId = view.ViewID;
idPerObject[view.gameObject] = view.InstantiationId;
}
}
}
}
// third pass: anything that's now 0 must get a new (not yet used) ID (starting at 0)
int lastUsedId = (minViewIdInThisScene > 0) ? minViewIdInThisScene - 1 : 0;
foreach (PhotonView view in pvInstances)
{
if (view.ViewID == 0)
{
Undo.RecordObject(view, "Automatic viewID change for: " + view.gameObject.name);
// Debug.LogWarning("setting scene ID: " + view.gameObject.name + " ID: " + view.subId.ID + " scene ID: " + view.GetSceneID() + " IsPersistent: " + EditorUtility.IsPersistent(view.gameObject) + " IsSceneViewIDFree: " + IsSceneViewIDFree(view.subId.ID, view));
int nextViewId = PhotonViewHandler.GetID(lastUsedId, usedInstanceViewNumbers);
view.ViewID = nextViewId;
int instId = 0;
if (idPerObject.TryGetValue(view.gameObject, out instId))
{
view.InstantiationId = instId;
}
else
{
view.InstantiationId = view.ViewID;
idPerObject[view.gameObject] = nextViewId;
}
lastUsedId = nextViewId;
fixedSomeId = true;
}
}
if (fixedSomeId)
{
//Debug.LogWarning("Some subId was adjusted."); // this log is only interesting for Exit Games
}
}
