private void DeactivateWalls()
{
GameObject room = GameObject.FindGameObjectWithTag("Room");
for (int i = 0; i < room.transform.childCount; i++)
{
Transform wall = room.transform.GetChild(i);
WallScript wallScript = wall.gameObject.GetComponent <WallScript> ();
if (wallScript.IsSelected())
{
wallScript.SetInactive();
}
}
}