- struct PawnParams {
- Bitboard Rank3BB, Rank8BB;
- Rank RANK_8;
- SquareDelta DELTA_N, DELTA_NE, DELTA_NW;
- Color us, them;
- };
- const PawnParams WhitePawnParams = { Rank3BB, Rank8BB, RANK_8, DELTA_N, DELTA_NE, DELTA_NW, WHITE, BLACK };
- const PawnParams BlackPawnParams = { Rank6BB, Rank1BB, RANK_1, DELTA_S, DELTA_SE, DELTA_SW, BLACK, WHITE };
-
- int generate_castle_moves(const Position&, MoveStack*, Color);
-
- template<Color>
- int generate_pawn_captures(const Position&, MoveStack*);
-
- template<Color>
- int generate_pawn_noncaptures(const Position&, MoveStack*);
-
- template<Color>
- int generate_pawn_checks(const Position&, Bitboard, Square, MoveStack*, int);
-
- template<Color>
- int generate_pawn_blocking_evasions(const Position&, Bitboard, Bitboard, MoveStack*, int);
-
- template<PieceType>
- int generate_piece_moves(const Position&, MoveStack*, Color, Bitboard);
-
- template<PieceType>
- int generate_piece_checks(const Position&, Bitboard, Bitboard, Square, MoveStack*, int);
- int generate_piece_checks_king(const Position&, Square, Bitboard, Square, MoveStack*, int);
-
- template<PieceType>
- int generate_piece_blocking_evasions(const Position&, Bitboard, Bitboard, MoveStack*, int);
-}
-
-
-////
-//// Functions
-////
-
-
-/// generate_captures generates() all pseudo-legal captures and queen
-/// promotions. The return value is the number of moves generated.
-
-int generate_captures(const Position& pos, MoveStack* mlist) {
-
- assert(pos.is_ok());
- assert(!pos.is_check());
-
- Color us = pos.side_to_move();
- Bitboard target = pos.pieces_of_color(opposite_color(us));
- int n;
-
- if (us == WHITE)
- n = generate_pawn_captures<WHITE>(pos, mlist);
- else
- n = generate_pawn_captures<BLACK>(pos, mlist);
-
- n += generate_piece_moves<KNIGHT>(pos, mlist+n, us, target);
- n += generate_piece_moves<BISHOP>(pos, mlist+n, us, target);
- n += generate_piece_moves<ROOK>(pos, mlist+n, us, target);
- n += generate_piece_moves<QUEEN>(pos, mlist+n, us, target);
- n += generate_piece_moves<KING>(pos, mlist+n, us, target);
- return n;
-}
-
-
-/// generate_noncaptures() generates all pseudo-legal non-captures and
-/// underpromotions. The return value is the number of moves generated.
-
-int generate_noncaptures(const Position& pos, MoveStack *mlist) {
-
- assert(pos.is_ok());
- assert(!pos.is_check());
-
- Color us = pos.side_to_move();
- Bitboard target = pos.empty_squares();
- int n;
-
- if (us == WHITE)
- n = generate_pawn_noncaptures<WHITE>(pos, mlist);
- else
- n = generate_pawn_noncaptures<BLACK>(pos, mlist);
-
- n += generate_piece_moves<KNIGHT>(pos, mlist+n, us, target);
- n += generate_piece_moves<BISHOP>(pos, mlist+n, us, target);
- n += generate_piece_moves<ROOK>(pos, mlist+n, us, target);
- n += generate_piece_moves<QUEEN>(pos, mlist+n, us, target);
- n += generate_piece_moves<KING>(pos, mlist+n, us, target);
-
- n += generate_castle_moves(pos, mlist+n, us);
- return n;
-}
-