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  *
  10  * GNU SHOGI is based on GNU CHESS
  11  *
  12  * Copyright (c) 1988, 1989, 1990 John Stanback
  13  * Copyright (c) 1992 Free Software Foundation
  14  *
  15  * This file is part of GNU SHOGI.
  16  *
  17  * GNU Shogi is free software; you can redistribute it and/or modify it
  18  * under the terms of the GNU General Public License as published by the
  19  * Free Software Foundation; either version 1, or (at your option) any
  20  * later version.
  21  *
  22  * GNU Shogi is distributed in the hope that it will be useful, but WITHOUT
  23  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  24  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  25  * for more details.
  26  *
  27  * You should have received a copy of the GNU General Public License along
  28  * with GNU Shogi; see the file COPYING.  If not, write to the Free
  29  * Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
  30  * ----------------------------------------------------------------------
  31  *
  32  */
  33
  34
  35 #ifndef _EVAL_H_
  36 #define _EVAL_H_
  37
  38 #define NO_STAGES 100
  39 #define NO_FEATURES 31
  40
  41
  42 struct signature
  43 {
  44     unsigned long hashbd;
  45     unsigned long hashkey;
  46 };
  47
  48 #define MatchSignature(s) ((s.hashbd == hashbd) && (s.hashkey == hashkey))
  49 #define CopySignature(s)  { s.hashbd = hashbd; s.hashkey = hashkey; }
  50
  51 typedef short        value_array[NO_STAGES][NO_PIECES];
  52 typedef small_short fscore_array[NO_STAGES][NO_FEATURES][2];
  53
  54 extern value_array  *value;
  55 extern fscore_array *fscore;
  56
  57 extern void threats (short side);
  58
  59 extern long attack[2][NO_SQUARES];
  60 extern small_short sseed[NO_SQUARES];
  61
  62 extern struct signature threats_signature[2];
  63
  64 extern small_short starget[2][NO_SQUARES];
  65 extern small_short sloose[NO_SQUARES];
  66 extern small_short shole[NO_SQUARES];
  67 extern small_short shung[NO_SQUARES];
  68
  69 extern struct signature squares_signature;
  70
  71 #endif /* _EVAL_H_ */