friend class PawnInfoTable;
public:
+ PawnInfo() : key(0) { clear(); }
+
Value mg_value() const;
Value eg_value() const;
Value kingside_storm_value(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;
- 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();
+ inline void clear();
+ int updateShelter(const Position& pos, Color c, Square ksq);
Key key;
Bitboard passedPawns;
- Square kingSquares[2];
- int16_t kingShelters[2];
int16_t mgValue, egValue;
int16_t ksStormValue[2], qsStormValue[2];
uint8_t halfOpenFiles[2];
+ Square kingSquares[2];
+ int16_t kingShelters[2];
};
-
/// 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
public:
PawnInfoTable(unsigned numOfEntries);
~PawnInfoTable();
- void clear();
PawnInfo* get_pawn_info(const Position& pos);
private:
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 void PawnInfo::setKingShelter(Color c, Square ksq, int value) {
- kingSquares[c] = ksq;
- kingShelters[c] = (int16_t)value;
+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::clear() {