// Bitboards
Bitboard byTypeBB[8]; // [pieceType]
Bitboard byColorBB[2]; // [color]
- Bitboard occupied;
// Piece counts
int pieceCount[2][8]; // [color][pieceType]
}
inline Bitboard Position::pieces() const {
- return occupied;
+ return byTypeBB[ALL_PIECES];
}
inline Bitboard Position::pieces(Color c) const {
}
inline bool Position::castle_impeded(CastleRight f) const {
- return occupied & castlePath[f];
+ return byTypeBB[ALL_PIECES] & castlePath[f];
}
inline Square Position::castle_rook_square(CastleRight f) const {
}
inline Bitboard Position::attacks_from(Piece p, Square s) const {
- return attacks_from(p, s, occupied);
+ return attacks_from(p, s, byTypeBB[ALL_PIECES]);
}
inline Bitboard Position::attackers_to(Square s) const {
- return attackers_to(s, occupied);
+ return attackers_to(s, byTypeBB[ALL_PIECES]);
}
inline Bitboard Position::checkers() const {