void Separate() {
        iterations++;
        List<Vector3> vec = new List<Vector3>();

         for (int i = 0; i < rooms.Count; i++) {
             int n = 0;
             vec.Add(new Vector3());
             for (int j = 0; j < rooms.Count; j++) {
                float dist = Vector3.Distance(rooms[i].position, rooms[j].position);
                if (dist > 0 && dist < neighbourDistance) {
                    vec[i] += (rooms[j].position - rooms[i].position);
                    n++;
                }
            }
             if (n > 0) {
                 Vector3 v = vec[i];
                 v.x /= n;
                 v.y /= n;
                 v.z /= n;
                 vec[i] = v;
                 vec[i].Normalize();
             }
        }

         for (int i = 0; i < rooms.Count; i++) {
             Vector3 p = rooms[i].position;
             p -= vec[i];
             rooms[i].position = p;
         }
    }