// Castling
int castling_rights(Color c) const;
- bool can_castle(CastlingRight cr) const;
- bool castling_impeded(CastlingRight cr) const;
- Square castling_rook_square(CastlingRight cr) const;
+ bool can_castle(CastlingRights cr) const;
+ bool castling_impeded(CastlingRights cr) const;
+ Square castling_rook_square(CastlingRights cr) const;
// Checking
Bitboard checkers() const;
Bitboard blockers_for_king(Color c) const;
Bitboard check_squares(PieceType pt) const;
+ bool is_discovery_check_on_king(Color c, Move m) const;
// Attacks to/from a given square
Bitboard attackers_to(Square s) const;
return !(pieces(c, PAWN) & file_bb(s));
}
-inline bool Position::can_castle(CastlingRight cr) const {
+inline bool Position::can_castle(CastlingRights cr) const {
return st->castlingRights & cr;
}
return st->castlingRights & (c == WHITE ? WHITE_CASTLING : BLACK_CASTLING);
}
-inline bool Position::castling_impeded(CastlingRight cr) const {
+inline bool Position::castling_impeded(CastlingRights cr) const {
return byTypeBB[ALL_PIECES] & castlingPath[cr];
}
-inline Square Position::castling_rook_square(CastlingRight cr) const {
+inline Square Position::castling_rook_square(CastlingRights cr) const {
return castlingRookSquare[cr];
}
return st->checkSquares[pt];
}
+inline bool Position::is_discovery_check_on_king(Color c, Move m) const {
+ return st->blockersForKing[c] & from_sq(m);
+}
+
inline bool Position::pawn_passed(Color c, Square s) const {
return !(pieces(~c, PAWN) & passed_pawn_span(c, s));
}