X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fmove.h;fp=src%2Fmove.h;h=0000000000000000000000000000000000000000;hp=99e0c44d2e7d7a2822e5ae68f18e758f1a4e212b;hb=81cd417b4584b0e3830940c5cb122c898afde08a;hpb=a44c5cf4f77b05a0385c127b7c26cf086a73120e diff --git a/src/move.h b/src/move.h deleted file mode 100644 index 99e0c44d..00000000 --- a/src/move.h +++ /dev/null @@ -1,131 +0,0 @@ -/* - Stockfish, a UCI chess playing engine derived from Glaurung 2.1 - Copyright (C) 2004-2008 Tord Romstad (Glaurung author) - Copyright (C) 2008-2010 Marco Costalba, Joona Kiiski, Tord Romstad - - Stockfish is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - Stockfish is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program. If not, see . -*/ - -#if !defined(MOVE_H_INCLUDED) -#define MOVE_H_INCLUDED - -#include - -#include "misc.h" -#include "types.h" - -// Maximum number of allowed moves per position -const int MAX_MOVES = 256; - -/// A move needs 16 bits to be stored -/// -/// bit 0- 5: destination square (from 0 to 63) -/// bit 6-11: origin square (from 0 to 63) -/// bit 12-13: promotion piece type - 2 (from KNIGHT-2 to QUEEN-2) -/// bit 14-15: special move flag: promotion (1), en passant (2), castle (3) -/// -/// Special cases are MOVE_NONE and MOVE_NULL. We can sneak these in -/// because in any normal move destination square is always different -/// from origin square while MOVE_NONE and MOVE_NULL have the same -/// origin and destination square, 0 and 1 respectively. - -enum Move { - MOVE_NONE = 0, - MOVE_NULL = 65 -}; - - -struct MoveStack { - Move move; - int score; -}; - -inline bool operator<(const MoveStack& f, const MoveStack& s) { return f.score < s.score; } - -// An helper insertion sort implementation, works with pointers and iterators -template -inline void sort(K firstMove, K lastMove) -{ - T value; - K cur, p, d; - - if (firstMove != lastMove) - for (cur = firstMove + 1; cur != lastMove; cur++) - { - p = d = cur; - value = *p--; - if (*p < value) - { - do *d = *p; - while (--d != firstMove && *--p < value); - *d = value; - } - } -} - -inline Square move_from(Move m) { - return Square((m >> 6) & 0x3F); -} - -inline Square move_to(Move m) { - return Square(m & 0x3F); -} - -inline bool is_special(Move m) { - return m & (3 << 14); -} - -inline bool is_promotion(Move m) { - return (m & (3 << 14)) == (1 << 14); -} - -inline int is_enpassant(Move m) { - return (m & (3 << 14)) == (2 << 14); -} - -inline int is_castle(Move m) { - return (m & (3 << 14)) == (3 << 14); -} - -inline PieceType promotion_piece_type(Move m) { - return PieceType(((m >> 12) & 3) + 2); -} - -inline Move make_move(Square from, Square to) { - return Move(to | (from << 6)); -} - -inline Move make_promotion_move(Square from, Square to, PieceType promotion) { - return Move(to | (from << 6) | (1 << 14) | ((promotion - 2) << 12)) ; -} - -inline Move make_enpassant_move(Square from, Square to) { - return Move(to | (from << 6) | (2 << 14)); -} - -inline Move make_castle_move(Square from, Square to) { - return Move(to | (from << 6) | (3 << 14)); -} - -inline bool is_ok(Move m) { - return move_from(m) != move_to(m); // Catches also MOVE_NONE -} - -class Position; - -extern const std::string move_to_uci(Move m, bool chess960); -extern Move move_from_uci(const Position& pos, const std::string& str); -extern const std::string move_to_san(Position& pos, Move m); - -#endif // !defined(MOVE_H_INCLUDED)