// Piece lists
Square piece_list(Color c, PieceType pt, int index) const;
- // Attack information to a given square
+ // Information about attacks to or from a given square
Bitboard attackers_to(Square s) const;
- Bitboard attackers_to(Square s, Color c) const;
- Bitboard piece_attacks(Piece p, Square s) const;
- Bitboard pawn_attacks(Square s, Color c) const;
- template<PieceType> Bitboard piece_attacks(Square s) const;
+ Bitboard piece_attacks_from(Piece p, Square s) const;
+ Bitboard pawn_attacks_from(Square s, Color c) const;
+ template<PieceType> Bitboard piece_attacks_from(Square s) const;
// Properties of moves
bool pl_move_is_legal(Move m) const;
return relative_square(c, make_square(initialQRFile, RANK_1));
}
-inline Bitboard Position::pawn_attacks(Square s, Color c) const {
+inline Bitboard Position::pawn_attacks_from(Square s, Color c) const {
return StepAttackBB[piece_of_color_and_type(c, PAWN)][s];
}
template<PieceType Piece> // Knight and King
-inline Bitboard Position::piece_attacks(Square s) const {
+inline Bitboard Position::piece_attacks_from(Square s) const {
return StepAttackBB[Piece][s];
}
template<>
-inline Bitboard Position::piece_attacks<PAWN>(Square s) const {
+inline Bitboard Position::piece_attacks_from<PAWN>(Square s) const {
return StepAttackBB[WP][s] | StepAttackBB[BP][s];
}
template<>
-inline Bitboard Position::piece_attacks<BISHOP>(Square s) const {
+inline Bitboard Position::piece_attacks_from<BISHOP>(Square s) const {
return bishop_attacks_bb(s, occupied_squares());
}
template<>
-inline Bitboard Position::piece_attacks<ROOK>(Square s) const {
+inline Bitboard Position::piece_attacks_from<ROOK>(Square s) const {
return rook_attacks_bb(s, occupied_squares());
}
template<>
-inline Bitboard Position::piece_attacks<QUEEN>(Square s) const {
- return piece_attacks<ROOK>(s) | piece_attacks<BISHOP>(s);
+inline Bitboard Position::piece_attacks_from<QUEEN>(Square s) const {
+ return piece_attacks_from<ROOK>(s) | piece_attacks_from<BISHOP>(s);
}
inline Bitboard Position::checkers() const {
return st->checkersBB != EmptyBoardBB;
}
-inline Bitboard Position::attackers_to(Square s, Color c) const {
-
- return attackers_to(s) & pieces_of_color(c);
-}
-
inline bool Position::pawn_is_passed(Color c, Square s) const {
return !(pieces(PAWN, opposite_color(c)) & passed_pawn_mask(c, s));
}