X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fpawns.h;h=5499826e8d9fe5b6b78cfb0a0e880fce66388b39;hp=df220eabbe9433fffad3dc47577446e49bbf84df;hb=HEAD;hpb=e917bd59b1e317c6b48dc676473359fdfb86d9d4

diff --git a/src/pawns.h b/src/pawns.h
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--- a/src/pawns.h
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-/*
-  Stockfish, a UCI chess playing engine derived from Glaurung 2.1
-  Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
-  Copyright (C) 2008-2015 Marco Costalba, Joona Kiiski, Tord Romstad
-  Copyright (C) 2015-2019 Marco Costalba, Joona Kiiski, Gary Linscott, 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 <http://www.gnu.org/licenses/>.
-*/
-
-#ifndef PAWNS_H_INCLUDED
-#define PAWNS_H_INCLUDED
-
-#include "misc.h"
-#include "position.h"
-#include "types.h"
-
-namespace Pawns {
-
-/// Pawns::Entry contains various information about a pawn structure. A lookup
-/// to the pawn hash table (performed by calling the probe function) returns a
-/// pointer to an Entry object.
-
-struct Entry {
-
-  Score pawn_score(Color c) const { return scores[c]; }
-  Bitboard pawn_attacks(Color c) const { return pawnAttacks[c]; }
-  Bitboard passed_pawns(Color c) const { return passedPawns[c]; }
-  Bitboard pawn_attacks_span(Color c) const { return pawnAttacksSpan[c]; }
-  int weak_unopposed(Color c) const { return weakUnopposed[c]; }
-  int pawn_asymmetry() const { return asymmetry; }
-  int open_files() const { return openFiles; }
-
-  int semiopen_file(Color c, File f) const {
-    return semiopenFiles[c] & (1 << f);
-  }
-
-  int pawns_on_same_color_squares(Color c, Square s) const {
-    return pawnsOnSquares[c][bool(DarkSquares & s)];
-  }
-
-  template<Color Us>
-  Score king_safety(const Position& pos) {
-    return  kingSquares[Us] == pos.square<KING>(Us) && castlingRights[Us] == pos.castling_rights(Us)
-          ? kingSafety[Us] : (kingSafety[Us] = do_king_safety<Us>(pos));
-  }
-
-  template<Color Us>
-  Score do_king_safety(const Position& pos);
-
-  template<Color Us>
-  Value evaluate_shelter(const Position& pos, Square ksq);
-
-  Key key;
-  Score scores[COLOR_NB];
-  Bitboard passedPawns[COLOR_NB];
-  Bitboard pawnAttacks[COLOR_NB];
-  Bitboard pawnAttacksSpan[COLOR_NB];
-  Square kingSquares[COLOR_NB];
-  Score kingSafety[COLOR_NB];
-  int weakUnopposed[COLOR_NB];
-  int castlingRights[COLOR_NB];
-  int semiopenFiles[COLOR_NB];
-  int pawnsOnSquares[COLOR_NB][COLOR_NB]; // [color][light/dark squares]
-  int asymmetry;
-  int openFiles;
-};
-
-typedef HashTable<Entry, 16384> Table;
-
-void init();
-Entry* probe(const Position& pos);
-
-} // namespace Pawns
-
-#endif // #ifndef PAWNS_H_INCLUDED