public void SetWallOn(string value)
{
if (value == "L")
{
this.WallOn = WallOn.Left;
}
else
{
this.WallOn = WallOn.Right;
}
}
public static (int X, int Y, Face Face) Next(this Face face, WallOn wallOn, int x, int y)
{
switch (face)
{
default:
case Face.Right:
if (wallOn == WallOn.Left)
{
return(x, y - 1, Face.Up);
}
else
{
return(x, y + 1, Face.Down);
}
case Face.Left:
if (wallOn == WallOn.Left)
{
return(x, y + 1, Face.Down);
}
else
{
return(x, y - 1, Face.Up);
}
case Face.Down:
if (wallOn == WallOn.Left)
{
return(x + 1, y, Face.Right);
}
else
{
return(x - 1, y, Face.Left);
}
case Face.Up:
if (wallOn == WallOn.Left)
{
return(x - 1, y, Face.Left);
}
else
{
return(x + 1, y, Face.Right);
}
}
}
public static Face Rotate(this Face face, WallOn wallOn)
{
if (wallOn == WallOn.Left)
{
switch (face)
{
case Face.Down:
return(Face.Left);
case Face.Left:
return(Face.Up);
case Face.Up:
return(Face.Right);
default:
case Face.Right:
return(Face.Down);
}
}
else
{
switch (face)
{
case Face.Down:
return(Face.Right);
case Face.Left:
return(Face.Down);
case Face.Up:
return(Face.Left);
default:
case Face.Right:
return(Face.Up);
}
}
}
