113 lines
2.3 KiB
C++
113 lines
2.3 KiB
C++
/*
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Glaurung, a UCI chess playing engine.
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Copyright (C) 2004-2008 Tord Romstad
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Glaurung is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Glaurung is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#if !defined(MOVE_H_INCLUDED)
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#define MOVE_H_INCLUDED
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////
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//// Includes
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////
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#include <iostream>
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#include "misc.h"
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#include "piece.h"
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#include "square.h"
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////
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//// Types
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////
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class Position;
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enum Move {
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MOVE_NONE = 0,
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MOVE_NULL = 65,
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MOVE_MAX = 0xFFFFFF
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};
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struct MoveStack {
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Move move;
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int score;
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};
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////
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//// Inline functions
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////
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inline Square move_from(Move m) {
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return Square((int(m) >> 6) & 077);
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}
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inline Square move_to(Move m) {
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return Square(m & 077);
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}
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inline PieceType move_promotion(Move m) {
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return PieceType((int(m) >> 12) & 7);
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}
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inline bool move_is_ep(Move m) {
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return bool((int(m) >> 15) & 1);
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}
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inline bool move_is_castle(Move m) {
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return bool((int(m) >> 16) & 1);
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}
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inline bool move_is_short_castle(Move m) {
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return move_is_castle(m) && (move_to(m) > move_from(m));
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}
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inline bool move_is_long_castle(Move m) {
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return move_is_castle(m) && (move_to(m) < move_from(m));
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}
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inline Move make_promotion_move(Square from, Square to, PieceType promotion) {
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return Move(int(to) | (int(from) << 6) | (int(promotion) << 12));
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}
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inline Move make_move(Square from, Square to) {
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return Move(int(to) | (int(from) << 6));
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}
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inline Move make_castle_move(Square from, Square to) {
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return Move(int(to) | (int(from) << 6) | (1 << 16));
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}
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inline Move make_ep_move(Square from, Square to) {
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return Move(int(to) | (int(from) << 6) | (1 << 15));
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}
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////
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//// Prototypes
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////
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extern std::ostream &operator << (std::ostream &os, Move m);
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extern Move move_from_string(const Position &pos, const std::string &str);
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extern const std::string move_to_string(Move m);
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extern bool move_is_ok(Move m);
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#endif // !defined(MOVE_H_INCLUDED)
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