return castleRookSquare[f];
}
-template<>
-inline Bitboard Position::attacks_from<PAWN>(Square s, Color c) const {
- return StepAttacksBB[make_piece(c, PAWN)][s];
-}
-
-template<PieceType Piece> // Knight and King and white pawns
+template<PieceType Pt>
inline Bitboard Position::attacks_from(Square s) const {
- return StepAttacksBB[Piece][s];
+ return Pt == BISHOP ? bishop_attacks_bb(s, occupied_squares())
+ : Pt == ROOK ? rook_attacks_bb(s, occupied_squares())
+ : Pt == QUEEN ? attacks_from<ROOK>(s) | attacks_from<BISHOP>(s)
+ : StepAttacksBB[Pt][s];
}
template<>
-inline Bitboard Position::attacks_from<BISHOP>(Square s) const {
- return bishop_attacks_bb(s, occupied_squares());
-}
-
-template<>
-inline Bitboard Position::attacks_from<ROOK>(Square s) const {
- return rook_attacks_bb(s, occupied_squares());
-}
-
-template<>
-inline Bitboard Position::attacks_from<QUEEN>(Square s) const {
- return attacks_from<ROOK>(s) | attacks_from<BISHOP>(s);
+inline Bitboard Position::attacks_from<PAWN>(Square s, Color c) const {
+ return StepAttacksBB[make_piece(c, PAWN)][s];
}
inline Bitboard Position::attacks_from(Piece p, Square s) const {
}
inline bool Position::pawn_is_passed(Color c, Square s) const {
- return !(pieces(PAWN, flip(c)) & passed_pawn_mask(c, s));
+ return !(pieces(PAWN, ~c) & passed_pawn_mask(c, s));
}
inline Key Position::key() const {