public void SetWall(Pt pt0, Pt pt1, bool b)
{
Pt[] n = Neighbours(pt0);
int i = IndexOf(n, pt1);
if (i == -1)
{
return;
}
if (pt0.CompareTo(pt1) < 0)
{
SetWall(pt1, pt0, b);
return;
}
SetWall(pt0, SetBit(GetWall(pt0), i, b));
}
public bool GetWall(Pt pt0, Pt pt1)
{
Pt[] n = Neighbours(pt0);
int i = IndexOf(n, pt1);
if (i == -1)
{
return(false);
}
#if WALL_SINGLE
//if (i * 2 >= n.Length)
if (pt0.CompareTo(pt1) < 0)
{
return(GetWall(pt1, pt0));
}
#endif
return(GetBit(GetWall(pt0), i));
}
