#include "nnue/nnue_accumulator.h"
+namespace Stockfish {
/// StateInfo struct stores information needed to restore a Position object to
/// its previous state when we retract a move. Whenever a move is made on the
// Not copied when making a move (will be recomputed anyhow)
Key key;
Bitboard checkersBB;
- Piece capturedPiece;
StateInfo* previous;
Bitboard blockersForKing[COLOR_NB];
Bitboard pinners[COLOR_NB];
Bitboard checkSquares[PIECE_TYPE_NB];
+ Piece capturedPiece;
int repetition;
// Used by NNUE
// FEN string input/output
Position& set(const std::string& fenStr, bool isChess960, StateInfo* si, Thread* th);
Position& set(const std::string& code, Color c, StateInfo* si);
- const std::string fen() const;
+ std::string fen() const;
// Position representation
Bitboard pieces(PieceType pt) const;
Bitboard blockers_for_king(Color c) const;
Bitboard check_squares(PieceType pt) const;
Bitboard pinners(Color c) const;
- bool is_discovered_check_on_king(Color c, Move m) const;
// Attacks to/from a given square
Bitboard attackers_to(Square s) const;
bool capture(Move m) const;
bool capture_or_promotion(Move m) const;
bool gives_check(Move m) const;
- bool advanced_pawn_push(Move m) const;
Piece moved_piece(Move m) const;
Piece captured_piece() const;
int castlingRightsMask[SQUARE_NB];
Square castlingRookSquare[CASTLING_RIGHT_NB];
Bitboard castlingPath[CASTLING_RIGHT_NB];
+ Thread* thisThread;
+ StateInfo* st;
int gamePly;
Color sideToMove;
Score psq;
- Thread* thisThread;
- StateInfo* st;
bool chess960;
};
return st->checkSquares[pt];
}
-inline bool Position::is_discovered_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));
}
-inline bool Position::advanced_pawn_push(Move m) const {
- return type_of(moved_piece(m)) == PAWN
- && relative_rank(sideToMove, to_sq(m)) > RANK_5;
-}
-
inline int Position::pawns_on_same_color_squares(Color c, Square s) const {
return popcount(pieces(c, PAWN) & ((DarkSquares & s) ? DarkSquares : ~DarkSquares));
}
return st;
}
+} // namespace Stockfish
+
#endif // #ifndef POSITION_H_INCLUDED