Subversion Repositories Games.Chess Giants

Rev

Rev 169 | Go to most recent revision | Blame | Compare with Previous | Last modification | View Log | Download | RSS feed

  1. /*
  2.   Stockfish, a UCI chess playing engine derived from Glaurung 2.1
  3.   Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
  4.   Copyright (C) 2008-2015 Marco Costalba, Joona Kiiski, Tord Romstad
  5.   Copyright (C) 2015-2016 Marco Costalba, Joona Kiiski, Gary Linscott, Tord Romstad
  6.  
  7.   Stockfish is free software: you can redistribute it and/or modify
  8.   it under the terms of the GNU General Public License as published by
  9.   the Free Software Foundation, either version 3 of the License, or
  10.   (at your option) any later version.
  11.  
  12.   Stockfish is distributed in the hope that it will be useful,
  13.   but WITHOUT ANY WARRANTY; without even the implied warranty of
  14.   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15.   GNU General Public License for more details.
  16.  
  17.   You should have received a copy of the GNU General Public License
  18.   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19. */
  20.  
  21. #ifndef MOVEGEN_H_INCLUDED
  22. #define MOVEGEN_H_INCLUDED
  23.  
  24. #include "types.h"
  25.  
  26. class Position;
  27.  
  28. enum GenType {
  29.   CAPTURES,
  30.   QUIETS,
  31.   QUIET_CHECKS,
  32.   EVASIONS,
  33.   NON_EVASIONS,
  34.   LEGAL
  35. };
  36.  
  37. struct ExtMove {
  38.   Move move;
  39.   Value value;
  40.  
  41.   operator Move() const { return move; }
  42.   void operator=(Move m) { move = m; }
  43. };
  44.  
  45. inline bool operator<(const ExtMove& f, const ExtMove& s) {
  46.   return f.value < s.value;
  47. }
  48.  
  49. template<GenType>
  50. ExtMove* generate(const Position& pos, ExtMove* moveList);
  51.  
  52. /// The MoveList struct is a simple wrapper around generate(). It sometimes comes
  53. /// in handy to use this class instead of the low level generate() function.
  54. template<GenType T>
  55. struct MoveList {
  56.  
  57.   explicit MoveList(const Position& pos) : last(generate<T>(pos, moveList)) {}
  58.   const ExtMove* begin() const { return moveList; }
  59.   const ExtMove* end() const { return last; }
  60.   size_t size() const { return last - moveList; }
  61.   bool contains(Move move) const {
  62.     for (const auto& m : *this) if (m == move) return true;
  63.     return false;
  64.   }
  65.  
  66. private:
  67.   ExtMove moveList[MAX_MOVES], *last;
  68. };
  69.  
  70. #endif // #ifndef MOVEGEN_H_INCLUDED
  71.