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;
- int kingShelter(Color c, Square ksq) const;
- void setKingShelter(Color c, Square ksq, int value);
+ int get_king_shelter(const Position& pos, Color c, Square ksq);
private:
void clear();
+ int updateShelter(const Position& pos, Color c, Square ksq);
Key key;
Bitboard passedPawns;
int16_t ksStormValue[2], qsStormValue[2];
uint8_t halfOpenFiles[2];
Square kingSquares[2];
- int16_t kingShelters[2];
+ uint8_t kingShelters[2];
};
/// The PawnInfoTable class represents a pawn hash table. It is basically
return halfOpenFiles[c] & ~((1 << int(f+1)) - 1);
}
-inline int PawnInfo::kingShelter(Color c, Square ksq) const {
- return (kingSquares[c] == ksq ? kingShelters[c] : -1);
+inline int PawnInfo::get_king_shelter(const Position& pos, Color c, Square ksq) {
+ return (kingSquares[c] == ksq ? kingShelters[c] : updateShelter(pos, c, ksq));
}
-inline void PawnInfo::setKingShelter(Color c, Square ksq, int value) {
- kingSquares[c] = ksq;
- kingShelters[c] = (int16_t)value;
-}
-
-inline void PawnInfo::clear() {
-
- passedPawns = EmptyBoardBB;
- mgValue = egValue = 0;
- ksStormValue[WHITE] = ksStormValue[BLACK] = 0;
- qsStormValue[WHITE] = qsStormValue[BLACK] = 0;
- halfOpenFiles[WHITE] = halfOpenFiles[BLACK] = 0xFF;
- kingSquares[WHITE] = kingSquares[BLACK] = SQ_NONE;
-}
-
-
#endif // !defined(PAWNS_H_INCLUDED)