public static int rotatePieceOneEighth(int p)
{
// Rotates a piece clockwise.
int newPiece = p;
newPiece = Pieces.setDirections(newPiece, Pieces.northwest(p), Pieces.southeast(p), Pieces.southwest(p), Pieces.northeast(p));
newPiece = Pieces.setDiagonals(newPiece, Pieces.left(p), Pieces.up(p), Pieces.down(p), Pieces.right(p));
return(newPiece);
}