X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fposition.cpp;h=0449222e016406f5e2e63804e8f695e5771cf28c;hp=e20c822f5998902ba2149d13504bd9846a1833d0;hb=0c1f119069bf915b85126159d4865c4bcc532239;hpb=b48439e90643cb6f65f9e34d1421976883c12efc diff --git a/src/position.cpp b/src/position.cpp index e20c822f..0449222e 100644 --- a/src/position.cpp +++ b/src/position.cpp @@ -52,6 +52,9 @@ namespace { const string PieceToChar(" PNBRQK pnbrqk"); +const Piece Pieces[] = { W_PAWN, W_KNIGHT, W_BISHOP, W_ROOK, W_QUEEN, W_KING, + B_PAWN, B_KNIGHT, B_BISHOP, B_ROOK, B_QUEEN, B_KING }; + // min_attacker() is a helper function used by see_ge() to locate the least // valuable attacker for the side to move, remove the attacker we just found // from the bitboards and scan for new X-ray attacks behind it. @@ -62,7 +65,7 @@ PieceType min_attacker(const Bitboard* bb, Square to, Bitboard stmAttackers, Bitboard b = stmAttackers & bb[Pt]; if (!b) - return min_attacker(bb, to, stmAttackers, occupied, attackers); + return min_attacker(bb, to, stmAttackers, occupied, attackers); occupied ^= b & ~(b - 1); @@ -595,7 +598,7 @@ bool Position::pseudo_legal(const Move m) const { && empty(to - pawn_push(us)))) return false; } - else if (!(attacks_from(pc, from) & to)) + else if (!(attacks_from(type_of(pc), from) & to)) return false; // Evasions generator already takes care to avoid some kind of illegal moves @@ -648,7 +651,7 @@ bool Position::gives_check(Move m) const { return false; case PROMOTION: - return attacks_bb(Piece(promotion_type(m)), to, pieces() ^ from) & square(~sideToMove); + return attacks_bb(promotion_type(m), to, pieces() ^ from) & square(~sideToMove); // En passant capture with check? We have already handled the case // of direct checks and ordinary discovered check, so the only case we