public static GameObject ResolveGuid(Guid guid)
{
if (_instance == null)
{
_instance = new GuidManager();
}
return(_instance.ResolveGuidInternal(guid, null, null));
}
public static GameObject ResolveGuid(Guid guid, Action onDestroyCallback)
{
if (_instance == null)
{
_instance = new GuidManager();
}
return(_instance.ResolveGuidInternal(guid, null, onDestroyCallback));
}
public static GameObject ResolveGuid(Guid guid, Action <GameObject> onAddCallback, Action onRemoveCallback)
{
if (_instance == null)
{
_instance = new GuidManager();
}
return(_instance.ResolveGuidInternal(guid, onAddCallback, onRemoveCallback));
}
public static void Remove(Guid guid)
{
if (_instance == null)
{
_instance = new GuidManager();
}
_instance.InternalRemove(guid);
}
// All the public API is static so you need not worry about creating an instance
public static bool Add(GuidComponent guidComponent)
{
if (_instance == null)
{
_instance = new GuidManager();
}
return(_instance.InternalAdd(guidComponent));
}
public static void Remove(System.Guid guid)
{
if (Instance == null)
{
Instance = new GuidManager();
}
Instance.InternalRemove(guid);
}
// When de-serializing or creating this component, we want to either restore our serialized GUID
// or create a new one.
private void CreateGuid()
{
// if our serialized data is invalid, then we are a new object and need a new GUID
if (serializedGuid == null || serializedGuid.Length != 16)
{
#if UNITY_EDITOR
// if in editor, make sure we aren't a prefab of some kind
if (IsAssetOnDisk())
{
return;
}
Undo.RecordObject(this, "Added GUID");
#endif
_guid = System.Guid.NewGuid();
serializedGuid = _guid.ToByteArray();
#if UNITY_EDITOR
// If we are creating a new GUID for a prefab instance of a prefab, but we have somehow lost our prefab connection
// force a save of the modified prefab instance properties
if (PrefabUtility.IsPartOfNonAssetPrefabInstance(this))
{
PrefabUtility.RecordPrefabInstancePropertyModifications(this);
}
#endif
}
else if (_guid == System.Guid.Empty)
{
// otherwise, we should set our system guid to our serialized guid
_guid = new System.Guid(serializedGuid);
}
// register with the GUID Manager so that other components can access this
if (_guid != System.Guid.Empty)
{
if (!GuidManager.Add(this))
{
// if registration fails, we probably have a duplicate or invalid GUID, get us a new one.
serializedGuid = null;
_guid = System.Guid.Empty;
CreateGuid();
}
}
}
// When deserializaing or creating this component, we want to either restore our serialized GUID
// or create a new one.
private void CreateGuid()
{
// if our serialized data is invalid, then we are a new object and need a new GUID
if (serializedGuid == null || serializedGuid.Length != 16)
{
guid = Guid.NewGuid();
serializedGuid = guid.ToByteArray();
#if UNITY_EDITOR
// If we are creating a new GUID for a prefab instance of a prefab, but we have somehow lost our prefab connection
// force a save of the modified prefab instance properties
PrefabType prefabType = PrefabUtility.GetPrefabType(this);
if (prefabType == PrefabType.PrefabInstance)
{
PrefabUtility.RecordPrefabInstancePropertyModifications(this);
}
#endif
}
else if (guid == Guid.Empty)
{
// otherwise, we should set our system guid to our serialized guid
guid = new Guid(serializedGuid);
}
// register with the GUID Manager so that other components can access this
if (guid != Guid.Empty)
{
if (!GuidManager.Add(this))
{
// if registration fails, we probably have a duplicate or invalid GUID, get us a new one.
serializedGuid = null;
guid = Guid.Empty;
CreateGuid();
}
}
}
// let the manager know we are gone, so other objects no longer find this
public void OnDestroy()
{
GuidManager.Remove(_guid);
}