public static GameObject orig_Spawn(GameObject prefab, Transform parent, Vector3 position, Quaternion rotation)
    {
        bool flag = prefab.GetComponent<ActiveRecycler>() != null;
        List<GameObject> list;
        if (ObjectPool.instance.pooledObjects.TryGetValue(prefab, ref list))
        {
            GameObject gameObject = null;
            Transform transform;
            if (list.Count > 0)
            {
                while (gameObject == null && list.Count > 0)
                {
                    gameObject = list[0];
                    list.RemoveAt(0);
                }
                if (gameObject != null)
                {
                    transform = gameObject.transform;
                    transform.parent = parent;
                    transform.localPosition = position;
                    transform.localRotation = rotation;
                    if (flag)
                    {
                        FSMUtility.SendEventToGameObject(gameObject, "A SPAWN");
                    }
                    else
                    {
                        gameObject.SetActive(true);
                    }
                    ObjectPool.instance.spawnedObjects.Add(gameObject, prefab);
                    return gameObject;
                }
            }
            Debug.LogWarningFormat("Object Pool attached to {0} has run out of {1} prefabs, Instantiating an additional one.", new object[]
            {
                ObjectPool.instance.name,
                prefab.name
            });
            gameObject = Object.Instantiate<GameObject>(prefab);
            transform = gameObject.transform;
            transform.parent = parent;
            transform.localPosition = position;
            transform.localRotation = rotation;
            if (flag)
            {
                FSMUtility.SendEventToGameObject(gameObject, "A SPAWN");
            }
            ObjectPool.instance.spawnedObjects.Add(gameObject, prefab);
            return gameObject;
        }
        if (prefab == null)
        {
            Debug.LogErrorFormat("Object Pool attached to {0} was asked for a NULL prefab.", new object[]
            {
                ObjectPool.instance.name
            });
            return null;
        }
        Debug.LogWarningFormat("Object Pool attached to {0} could not find a copy of {1}, Instantiating a new one.", new object[]
        {
            ObjectPool.instance.name,
            prefab.name
        });
        ObjectPool.CreatePool(prefab.gameObject, 1);
        return ObjectPool.Spawn(prefab);
    }