QuadTree.UpdateQuadTree C# (CSharp) Method

    void UpdateQuadTree()
    {
        Debug.Log("Different objs count: " + differentObjects.Count);
            foreach (ObjectInfo oi in differentObjects)
            {
                List<QuadTreeItem> result = GetQuadTreeItemFor(new Vector3(oi.position.x, 1.0f, oi.position.z), oi.scale, 2);
                result.AddRange(GetQuadTreeItemFor(new Vector3(oi.oldPosition.x, 1.0f, oi.oldPosition.z), oi.scale, 2));

                foreach (QuadTreeItem qti in result)
                {
                    qti.GameObjects.Clear();

                    DisposeOldQuadTree(qti.insideGameObject, true);

                    Init (qti.insideGameObject, qti.Depth);

                    qtisToRegenerate.Add (qti);
                }
            }
    }