(*mlist++).move = make_move(to - (d), to); }
namespace {
- enum CastlingSide { KING_SIDE, QUEEN_SIDE };
-
template<CastlingSide Side, bool OnlyChecks>
MoveStack* generate_castle(const Position& pos, MoveStack* mlist, Color us) {
- const CastleRight CR[] = { Side ? WHITE_OOO : WHITE_OO,
- Side ? BLACK_OOO : BLACK_OO };
-
- if (pos.castle_impeded(CR[us]) || !pos.can_castle(CR[us]))
+ if (pos.castle_impeded(us, Side) || !pos.can_castle(make_castle_right(us, Side)))
return mlist;
// After castling, the rook and king final positions are the same in Chess960
// as they would be in standard chess.
Square kfrom = pos.king_square(us);
- Square rfrom = pos.castle_rook_square(CR[us]);
+ Square rfrom = pos.castle_rook_square(us, Side);
Square kto = relative_square(us, Side == KING_SIDE ? SQ_G1 : SQ_C1);
Bitboard enemies = pos.pieces(~us);
assert(!pos.in_check());
- assert(pos.piece_on(kfrom) == make_piece(us, KING));
- assert(pos.piece_on(rfrom) == make_piece(us, ROOK));
for (Square s = std::min(kfrom, kto), e = std::max(kfrom, kto); s <= e; s++)
if ( s != kfrom // We are not in check
Bitboard b1, b2, dc1, dc2, emptySquares;
- Bitboard pawnsOn7 = pos.pieces(PAWN, Us) & TRank7BB;
- Bitboard pawnsNotOn7 = pos.pieces(PAWN, Us) & ~TRank7BB;
+ Bitboard pawnsOn7 = pos.pieces(Us, PAWN) & TRank7BB;
+ Bitboard pawnsNotOn7 = pos.pieces(Us, PAWN) & ~TRank7BB;
Bitboard enemies = (Type == MV_EVASION ? pos.pieces(Them) & target:
Type == MV_CAPTURE ? target : pos.pieces(Them));
// If queen and king are far or not on a diagonal line we can safely
// remove all the squares attacked in the other direction becuase are
// not reachable by the king anyway.
- if (squares_between(ksq, checksq) || !(PseudoAttacks[BISHOP][checksq] & ksq))
+ if (between_bb(ksq, checksq) || !(PseudoAttacks[BISHOP][checksq] & ksq))
sliderAttacks |= PseudoAttacks[QUEEN][checksq];
// Otherwise we need to use real rook attacks to check if king is safe
return mlist;
// Blocking evasions or captures of the checking piece
- target = squares_between(checksq, ksq) | checkers;
+ target = between_bb(checksq, ksq) | checkers;
mlist = (us == WHITE ? generate_pawn_moves<WHITE, MV_EVASION>(pos, mlist, target)
: generate_pawn_moves<BLACK, MV_EVASION>(pos, mlist, target));