std::string fen() const;
// Position representation
- Bitboard pieces(PieceType pt) const;
- Bitboard pieces(PieceType pt1, PieceType pt2) const;
+ Bitboard pieces(PieceType pt = ALL_PIECES) const;
+ template<typename ...PieceTypes> Bitboard pieces(PieceType pt, PieceTypes... pts) const;
Bitboard pieces(Color c) const;
- Bitboard pieces(Color c, PieceType pt) const;
- Bitboard pieces(Color c, PieceType pt1, PieceType pt2) const;
+ template<typename ...PieceTypes> Bitboard pieces(Color c, PieceTypes... pts) const;
Piece piece_on(Square s) const;
Square ep_square() const;
bool empty(Square s) const;
// Static Exchange Evaluation
bool see_ge(Move m, Value threshold = VALUE_ZERO) const;
+ bool see_ge(Move m, Bitboard& occupied, Value threshold = VALUE_ZERO) const;
// Accessing hash keys
Key key() const;
private:
// Initialization helpers (used while setting up a position)
void set_castling_right(Color c, Square rfrom);
- void set_state(StateInfo* si) const;
- void set_check_info(StateInfo* si) const;
+ void set_state() const;
+ void set_check_info() const;
// Other helpers
void move_piece(Square from, Square to);
return piece_on(from_sq(m));
}
-inline Bitboard Position::pieces(PieceType pt = ALL_PIECES) const {
+inline Bitboard Position::pieces(PieceType pt) const {
return byTypeBB[pt];
}
-inline Bitboard Position::pieces(PieceType pt1, PieceType pt2) const {
- return pieces(pt1) | pieces(pt2);
+template<typename ...PieceTypes>
+inline Bitboard Position::pieces(PieceType pt, PieceTypes... pts) const {
+ return pieces(pt) | pieces(pts...);
}
inline Bitboard Position::pieces(Color c) const {
return byColorBB[c];
}
-inline Bitboard Position::pieces(Color c, PieceType pt) const {
- return pieces(c) & pieces(pt);
-}
-
-inline Bitboard Position::pieces(Color c, PieceType pt1, PieceType pt2) const {
- return pieces(c) & (pieces(pt1) | pieces(pt2));
+template<typename ...PieceTypes>
+inline Bitboard Position::pieces(Color c, PieceTypes... pts) const {
+ return pieces(c) & pieces(pts...);
}
template<PieceType Pt> inline int Position::count(Color c) const {
// is needed to avoid the generation of duplicate moves.
inline bool Position::capture_stage(Move m) const {
assert(is_ok(m));
- return capture(m) || (type_of(m) == PROMOTION && promotion_type(m) == QUEEN);
+ return capture(m) || promotion_type(m) == QUEEN;
}
inline Piece Position::captured_piece() const {