//// Includes
////
-#include "position.h"
-
+#include "bitboard.h"
+#include "value.h"
////
//// Types
/// 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;
class PawnInfo {
Value kingside_storm_value(Color c) const;
Value queenside_storm_value(Color c) const;
Bitboard passed_pawns() const;
- bool file_is_half_open(Color c, File f) const;
- bool has_open_file_to_left(Color c, File f) const;
- bool has_open_file_to_right(Color c, File f) 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;
private:
void clear();
Key key;
Bitboard passedPawns;
int16_t mgValue, egValue;
- int8_t ksStormValue[2], qsStormValue[2];
+ int16_t ksStormValue[2], qsStormValue[2];
uint8_t halfOpenFiles[2];
};
PawnInfoTable(unsigned numOfEntries);
~PawnInfoTable();
void clear();
- PawnInfo *get_pawn_info(const Position &pos);
+ PawnInfo* get_pawn_info(const Position& pos);
private:
unsigned size;
- PawnInfo *entries;
+ PawnInfo* entries;
};
return Value(qsStormValue[c]);
}
-inline bool PawnInfo::file_is_half_open(Color c, File f) const {
+inline int PawnInfo::file_is_half_open(Color c, File f) const {
return (halfOpenFiles[c] & (1 << int(f)));
}
-inline bool PawnInfo::has_open_file_to_left(Color c, File f) const {
+inline int PawnInfo::has_open_file_to_left(Color c, File f) const {
return halfOpenFiles[c] & ((1 << int(f)) - 1);
}
-inline bool PawnInfo::has_open_file_to_right(Color c, File f) const {
+inline int PawnInfo::has_open_file_to_right(Color c, File f) const {
return halfOpenFiles[c] & ~((1 << int(f+1)) - 1);
}
inline void PawnInfo::clear() {
- Key k = key;
- memset(this, 0, sizeof(PawnInfo));
- key = k;
+ passedPawns = EmptyBoardBB;
+ mgValue = egValue = 0;
+ ksStormValue[WHITE] = ksStormValue[BLACK] = 0;
+ qsStormValue[WHITE] = qsStormValue[BLACK] = 0;
halfOpenFiles[WHITE] = halfOpenFiles[BLACK] = 0xFF;
}