/*
Stockfish, a UCI chess playing engine derived from Glaurung 2.1
Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
/*
Stockfish, a UCI chess playing engine derived from Glaurung 2.1
Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
Stockfish is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
Stockfish is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
const int PawnTableSize = 16384;
/// PawnInfo is a class which contains various information about a pawn
/// structure. Currently, it only includes a middle game and an end game
/// pawn structure evaluation, and a bitboard of passed pawns. We may want
const int PawnTableSize = 16384;
/// PawnInfo is a class which contains various information about a pawn
/// structure. Currently, it only includes a middle game and an end game
/// pawn structure evaluation, and a bitboard of passed pawns. We may want
-/// to add further information in the future. A lookup to the pawn hash table
-/// (performed by calling the get_pawn_info method in a PawnInfoTable object)
-/// returns a pointer to a PawnInfo object.
-class Position;
+/// to add further information in the future. A lookup to the pawn hash
+/// table (performed by calling the pawn_info method in a PawnInfoTable
+/// object) returns a pointer to a PawnInfo object.
Bitboard pawn_attacks(Color c) const;
Bitboard passed_pawns(Color c) const;
int file_is_half_open(Color c, File f) const;
int has_open_file_to_left(Color c, File f) const;
int has_open_file_to_right(Color c, File f) const;
Bitboard pawn_attacks(Color c) const;
Bitboard passed_pawns(Color c) const;
int file_is_half_open(Color c, File f) const;
int has_open_file_to_left(Color c, File f) const;
int has_open_file_to_right(Color c, File f) const;
-/// The PawnInfoTable class represents a pawn hash table. It is basically
-/// just an array of PawnInfo objects and a few methods for accessing these
-/// objects. The most important method is get_pawn_info, which looks up a
-/// position in the table and returns a pointer to a PawnInfo object.
-
-class PawnInfoTable {
- Score evaluate_pawns(const Position& pos, Bitboard ourPawns, Bitboard theirPawns, PawnInfo* pi) const;
-
- template<Color Us, SideType Side>
- int evaluate_pawn_storm(Square s, Rank r, File f, Bitboard theirPawns) const;
-
- PawnInfo* entries;
+ static Score evaluate_pawns(const Position& pos, Bitboard ourPawns, Bitboard theirPawns, PawnInfo* pi);
inline Bitboard PawnInfo::passed_pawns(Color c) const {
return passedPawns[c];
}
inline int PawnInfo::file_is_half_open(Color c, File f) const {
inline Bitboard PawnInfo::passed_pawns(Color c) const {
return passedPawns[c];
}
inline int PawnInfo::file_is_half_open(Color c, File f) const {
-inline Score PawnInfo::king_shelter(const Position& pos, Color c, Square ksq) {
- return kingSquares[c] == ksq ? kingShelters[c] : updateShelter(pos, c, ksq);
+template<Color Us>
+inline Score PawnInfo::king_shelter(const Position& pos, Square ksq) {
+ return kingSquares[Us] == ksq ? kingShelters[Us] : updateShelter<Us>(pos, ksq);