public void Load(int i)
        {
            if (Loaded.Contains(i))
            {
                return;
            }

            Loaded.Add(i);
            LoadQueue.Enqueue(i);
        }
        private void CheckFunc(PointOctreeNode <Integer> .OctreeObject octreeObject)
        {
            var objectPosition  = DataSet[octreeObject.Obj].Position;
            var distanceCurrent = Vector3.Distance(cachePosition, objectPosition);

            if (distanceCurrent > NearRadius && distanceCurrent < FarRadius && !Loaded.Contains(octreeObject.Obj))
            {
                Loaded.Add(octreeObject.Obj);
                lock (LoadQueue)
                {
                    LoadQueue.Enqueue(octreeObject.Obj);
                }
            }
            else if ((distanceCurrent < NearRadius || distanceCurrent > FarRadius) &&
                     Loaded.Contains(octreeObject.Obj))
            {
                Loaded.Remove(octreeObject.Obj);
                lock (UnloadQueue)
                {
                    UnloadQueue.Enqueue(octreeObject.Obj);
                }
            }
        }