X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=src%2Fpawns.h;h=d20e7c2ebe52786d715cf427a62aa31dbe34104b;hb=HEAD;hp=bd17618f5d8f31fd5009d914b76d78b1a9a7e271;hpb=9cb1f9f2655cd378eec9d88fd57a039a04396aae;p=stockfish
diff --git a/src/pawns.h b/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) 2015-2020 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 .
-*/
-
-#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 passed_count() const { return popcount(passedPawns[WHITE] | passedPawns[BLACK]); }
-
- template
- Score king_safety(const Position& pos) {
- return kingSquares[Us] == pos.square(Us) && castlingRights[Us] == pos.castling_rights(Us)
- ? kingSafety[Us] : (kingSafety[Us] = do_king_safety(pos));
- }
-
- template
- Score do_king_safety(const Position& pos);
-
- template
- Score 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 castlingRights[COLOR_NB];
-};
-
-typedef HashTable Table;
-
-Entry* probe(const Position& pos);
-
-} // namespace Pawns
-
-#endif // #ifndef PAWNS_H_INCLUDED