along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
-#if !defined(PAWNS_H_INCLUDED)
+#ifndef PAWNS_H_INCLUDED
#define PAWNS_H_INCLUDED
#include "misc.h"
Score pawns_value() const { return value; }
Bitboard pawn_attacks(Color c) const { return pawnAttacks[c]; }
Bitboard passed_pawns(Color c) const { return passedPawns[c]; }
- int file_is_half_open(Color c, File f) const { return halfOpenFiles[c] & (1 << int(f)); }
- int has_open_file_to_left(Color c, File f) const { return halfOpenFiles[c] & ((1 << int(f)) - 1); }
- int has_open_file_to_right(Color c, File f) const { return halfOpenFiles[c] & ~((1 << int(f+1)) - 1); }
- int same_colored_pawn_count(Square s, Color c) const { return (BlackSquares & s) ? pawnsOnBlackSquaresCount[c] : pawnsOnWhiteSquaresCount[c]; }
+ Bitboard candidate_pawns(Color c) const { return candidatePawns[c]; }
+ int pawns_on_same_color_squares(Color c, Square s) const { return pawnsOnSquares[c][!!(DarkSquares & s)]; }
+ int semiopen(Color c, File f) const { return semiopenFiles[c] & (1 << int(f)); }
+ int semiopen_on_side(Color c, File f, bool left) const {
+
+ return semiopenFiles[c] & (left ? ((1 << int(f)) - 1) : ~((1 << int(f+1)) - 1));
+ }
template<Color Us>
Score king_safety(const Position& pos, Square ksq) {
Key key;
Bitboard passedPawns[COLOR_NB];
+ Bitboard candidatePawns[COLOR_NB];
Bitboard pawnAttacks[COLOR_NB];
Square kingSquares[COLOR_NB];
int minKPdistance[COLOR_NB];
int castleRights[COLOR_NB];
Score value;
- int halfOpenFiles[COLOR_NB];
+ int semiopenFiles[COLOR_NB];
Score kingSafety[COLOR_NB];
- int pawnsOnWhiteSquaresCount[COLOR_NB];
- int pawnsOnBlackSquaresCount[COLOR_NB];
+ int pawnsOnSquares[COLOR_NB][COLOR_NB];
};
typedef HashTable<Entry, 16384> Table;
+void init();
Entry* probe(const Position& pos, Table& entries);
}
-#endif // !defined(PAWNS_H_INCLUDED)
+#endif // #ifndef PAWNS_H_INCLUDED