gnushogi/eval.h

   1 /*
   2  * FILE: eval.h
   3  *
   4  *     Interface to the board evaluator.
   5  *
   6  * ----------------------------------------------------------------------
   7  * Copyright (c) 1993, 1994, 1995 Matthias Mutz
   8  * Copyright (c) 1999 Michael Vanier and the Free Software Foundation
   9  * Copyright (c) 2008, 2013, 2014 Yann Dirson and the Free Software Foundation
  10  *
  11  * GNU SHOGI is based on GNU CHESS
  12  *
  13  * Copyright (c) 1988, 1989, 1990 John Stanback
  14  * Copyright (c) 1992 Free Software Foundation
  15  *
  16  * This file is part of GNU SHOGI.
  17  *
  18  * GNU Shogi is free software; you can redistribute it and/or modify it
  19  * under the terms of the GNU General Public License as published by the
  20  * Free Software Foundation; either version 3 of the License,
  21  * or (at your option) any later version.
  22  *
  23  * GNU Shogi is distributed in the hope that it will be useful, but WITHOUT
  24  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  25  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  26  * for more details.
  27  *
  28  * You should have received a copy of the GNU General Public License along
  29  * with GNU Shogi; see the file COPYING. If not, see
  30  * <http://www.gnu.org/licenses/>.
  31  * ----------------------------------------------------------------------
  32  *
  33  */
  34
  35
  36 #ifndef _EVAL_H_
  37 #define _EVAL_H_
  38
  39 #define NO_STAGES 100
  40 #define NO_FEATURES 31
  41
  42
  43 struct signature
  44 {
  45     unsigned long hashbd;
  46     unsigned long hashkey;
  47 };
  48
  49 #define MatchSignature(s) ((s.hashbd == hashbd) && (s.hashkey == hashkey))
  50 #define CopySignature(s)  { s.hashbd = hashbd; s.hashkey = hashkey; }
  51
  52 typedef short        value_array[NO_STAGES][NO_PIECES];
  53 typedef small_short fscore_array[NO_STAGES][NO_FEATURES][2];
  54
  55 extern value_array  *value;
  56 extern fscore_array *fscore;
  57
  58 extern void threats (short side);
  59
  60 extern long attack[2][NO_SQUARES];
  61 extern small_short sseed[NO_SQUARES];
  62
  63 extern struct signature threats_signature[2];
  64
  65 extern small_short starget[2][NO_SQUARES];
  66 extern small_short sloose[NO_SQUARES];
  67 extern small_short shole[NO_SQUARES];
  68 extern small_short shung[NO_SQUARES];
  69
  70 extern struct signature squares_signature;
  71
  72 #endif /* _EVAL_H_ */