public static GUIDManager GetInstance()
{
if (_instance == null)
{
_instance = new GUIDManager();
}
return(_instance);
}
//=============================================================================//
//============ Private Methods
//=============================================================================//.
#region Private Methods
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) == false)
{
// if registration fails, we probably have a duplicate or invalid GUID, get us a new one.
_serializedGuid = null;
guid = System.Guid.Empty;
CreateGuid();
}
}
}
//=============================================================================//
//============ Lifecycle Methods
//=============================================================================//.
#region Lifecycle Methods
public void OnDestroy()
{
GUIDManager.Remove(guid);
}