public static Arrow ReOrient(this CubieFace face, Arrow direction)
{
face.Check(direction);
if (face.Cubie.Dot(direction) > 0)
{
return(face.Face.Negate());
}
return(direction);
}
public static CubieFace Neighbour(this CubieFace face, Arrow direction)
{
face.Check(direction);
if (face.Cubie.Dot(direction) > 0)
{
return(new CubieFace(face.Cubie, direction));
}
var cubie = face.Cubie.Add(direction);
return(new CubieFace(cubie, face.Face));
}