move.h

   1 /*
   2  *      This program is free software; you can redistribute it and/or modify
   3  *      it under the terms of the GNU General Public License as published by
   4  *      the Free Software Foundation; either version 2 of the License, or
   5  *      (at your option) any later version.
   6  *
   7  *      This program is distributed in the hope that it will be useful,
   8  *      but WITHOUT ANY WARRANTY; without even the implied warranty of
   9  *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  10  *      GNU General Public License for more details.
  11  *
  12  *      You should have received a copy of the GNU General Public License
  13  *      along with this program; if not, write to the Free Software
  14  *      Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  15  */
  16 #define TYPE_PAWN_ONE           1
  17 #define TYPE_PAWN_TWO           2
  18 #define TYPE_CAPTURE            4
  19 #define TYPE_PROMOTE            8
  20 #define TYPE_CASTLE             16
  21 #define TYPE_ENPASSANT  32
  22 #define TYPE_TACTICAL   (TYPE_CAPTURE | TYPE_ENPASSANT | TYPE_PROMOTE)
  23
  24 #define SET_FROM(x)                     (x)
  25 #define SET_TO(x)                       ((x) << 6)
  26 #define SET_TYPE(x)                     ((x) << 12)
  27 #define SET_PROMOTE(x)          ((x) << 18)
  28
  29 #define GET_FROM(x)                     ((x) & 0x3f)
  30 #define GET_TO(x)                       (((x) >> 6) & 0x3f)
  31 #define GET_TYPE(x)                     (((x) >> 12) & 0x3f)
  32 #define GET_PROMOTE(x)          (((x) >> 18) & 7)
  33
  34 #define MOVE_IS_TACTICAL(x)     (GET_TYPE(x) & TYPE_TACTICAL)
  35 #define PIECE(x)                        (square64[GET_FROM(x)])
  36 #define CAP_PIECE(x)                    (square64[GET_TO(x)])
  37
  38 #define MAX_MOVES 512
  39
  40 struct moves_t {
  41         int count;
  42         int move[MAX_MOVES];
  43         int score[MAX_MOVES];
  44         int see[MAX_MOVES];
  45 };
  46
  47 void sort_moves(struct moves_t *moves, int current, int ply);
  48 char *coord_move(int move, char *buf);
  49 char *get_pv_string_coord(char * buf);
  50 char *get_pv_string_san(char * buf);
  51 int make_move(int move, int tb);
  52 int move_is_legal(int move);
  53 int parse_move_coord(char * move);
  54 int parse_move_san(char * move);
  55 void print_moves_coord(struct moves_t * moves);
  56 void print_moves_san(struct moves_t *moves);
  57 char *san_move(int move, char * buf);
  58 void takeback(void);
  59 void print_move_coord(int move);
  60
  61 int gen_legal_moves(struct moves_t *moves);
  62 int gen_moves(struct moves_t *moves);
  63 int gen_quiescent_moves(struct moves_t *moves, uint64_t target);