// Castling rights
bool can_castle(CastleRight f) const;
bool can_castle(Color c) const;
+ bool castle_impeded(CastleRight f) const;
Square castle_rook_square(CastleRight f) const;
// Bitboards for pinned pieces and discovered check candidates
// Initialization helper functions (used while setting up a position)
void clear();
void put_piece(Piece p, Square s);
- void set_castle_right(Color c, Square rsq);
+ void set_castle_right(Color c, Square rfrom);
bool move_is_legal(const Move m) const;
// Helper template functions
// Other info
int castleRightsMask[64]; // [square]
Square castleRookSquare[16]; // [castleRight]
+ Bitboard castlePath[16]; // [castleRight]
StateInfo startState;
int64_t nodes;
int startPosPly;
return st->castleRights & ((WHITE_OO | WHITE_OOO) << c);
}
+inline bool Position::castle_impeded(CastleRight f) const {
+ return occupied & castlePath[f];
+}
+
inline Square Position::castle_rook_square(CastleRight f) const {
return castleRookSquare[f];
}