2 Stockfish, a UCI chess playing engine derived from Glaurung 2.1
3 Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
4 Copyright (C) 2008 Marco Costalba
6 Stockfish is free software: you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation, either version 3 of the License, or
9 (at your option) any later version.
11 Stockfish is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <http://www.gnu.org/licenses/>.
21 #if !defined(MOVE_H_INCLUDED)
22 #define MOVE_H_INCLUDED
58 inline Square move_from(Move m) {
59 return Square((int(m) >> 6) & 077);
62 inline Square move_to(Move m) {
63 return Square(m & 077);
66 inline PieceType move_promotion(Move m) {
67 return PieceType((int(m) >> 12) & 7);
70 inline bool move_is_ep(Move m) {
71 return bool((int(m) >> 15) & 1);
74 inline bool move_is_castle(Move m) {
75 return bool((int(m) >> 16) & 1);
78 inline bool move_is_short_castle(Move m) {
79 return move_is_castle(m) && (move_to(m) > move_from(m));
82 inline bool move_is_long_castle(Move m) {
83 return move_is_castle(m) && (move_to(m) < move_from(m));
86 inline Move make_promotion_move(Square from, Square to, PieceType promotion) {
87 return Move(int(to) | (int(from) << 6) | (int(promotion) << 12));
90 inline Move make_move(Square from, Square to) {
91 return Move(int(to) | (int(from) << 6));
94 inline Move make_castle_move(Square from, Square to) {
95 return Move(int(to) | (int(from) << 6) | (1 << 16));
98 inline Move make_ep_move(Square from, Square to) {
99 return Move(int(to) | (int(from) << 6) | (1 << 15));
107 extern std::ostream &operator << (std::ostream &os, Move m);
108 extern Move move_from_string(const Position &pos, const std::string &str);
109 extern const std::string move_to_string(Move m);
110 extern bool move_is_ok(Move m);
113 #endif // !defined(MOVE_H_INCLUDED)