QuadTree.DetermineGameObjectsInside C# (CSharp) Method

    public List<GameObject> DetermineGameObjectsInside(GameObject item)
    {
        GameObject[] list = GameObject.FindGameObjectsWithTag("wall");

            List<GameObject> result = new List<GameObject>();

            foreach (GameObject go in list)
            {
                if (IsGameObjectIn(item, go))
                {
                    result.Add(go);
                }
            }

            return result;
    }