public void showNeighbours()
{
Debug.Log("///////Node: " + movable + "///////");
if (l != null)
{
Debug.Log("Left: " + l.getMovable());
}
if (r != null)
{
Debug.Log("Right: " + r.getMovable());
}
if (u != null)
{
Debug.Log("Up: " + u.getMovable());
}
if (d != null)
{
Debug.Log("Down: " + d.getMovable());
}
Debug.Log("///////Node: " + movable + "///////");
}