X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fendgame.cpp;h=5e1f5a0d1d44e2b520b63cb01b121ae7902ce98f;hp=69d0df5114463f86119e0dfc1e4bd704aba0a2e5;hb=53ce6ce49c024631c1bd788e10507bdb4f76eb70;hpb=76bed11f7b79d939c250c02d73d0c1e2628e7a17 diff --git a/src/endgame.cpp b/src/endgame.cpp index 69d0df51..5e1f5a0d 100644 --- a/src/endgame.cpp +++ b/src/endgame.cpp @@ -329,7 +329,7 @@ Value EvaluationFunction::apply(const Position& pos) { assert(pos.non_pawn_material(strongerSide) == 2*BishopValueMidgame); assert(pos.piece_count(weakerSide, KNIGHT) == 1); assert(pos.non_pawn_material(weakerSide) == KnightValueMidgame); - assert(pos.pieces() == EmptyBoardBB); + assert(pos.pieces(PAWN) == EmptyBoardBB); Value result = BishopValueEndgame; Square wksq = pos.king_square(strongerSide); @@ -343,7 +343,7 @@ Value EvaluationFunction::apply(const Position& pos) { result += Value(square_distance(bksq, nsq) * 32); // Bonus for restricting the knight's mobility - result += Value((8 - count_1s_max_15(pos.piece_attacks(nsq))) * 8); + result += Value((8 - count_1s_max_15(pos.attacks_from(nsq))) * 8); return (strongerSide == pos.side_to_move() ? result : -result); } @@ -376,7 +376,7 @@ ScaleFactor ScalingFunction::apply(const Position& pos) { // No assertions about the material of weakerSide, because we want draws to // be detected even when the weaker side has some pawns. - Bitboard pawns = pos.pieces(strongerSide); + Bitboard pawns = pos.pieces(PAWN, strongerSide); File pawnFile = square_file(pos.piece_list(strongerSide, PAWN, 0)); // All pawns are on a single rook file ? @@ -432,12 +432,12 @@ ScaleFactor ScalingFunction::apply(const Position& pos) { Square kingSq = pos.king_square(weakerSide); if ( relative_rank(weakerSide, kingSq) <= RANK_2 && relative_rank(weakerSide, pos.king_square(strongerSide)) >= RANK_4 - && (pos.pieces(weakerSide) & relative_rank_bb(weakerSide, RANK_3)) - && (pos.pieces(weakerSide) & relative_rank_bb(weakerSide, RANK_2)) - && (pos.piece_attacks(kingSq) & pos.pieces(weakerSide))) + && (pos.pieces(ROOK, weakerSide) & relative_rank_bb(weakerSide, RANK_3)) + && (pos.pieces(PAWN, weakerSide) & relative_rank_bb(weakerSide, RANK_2)) + && (pos.attacks_from(kingSq) & pos.pieces(PAWN, weakerSide))) { Square rsq = pos.piece_list(weakerSide, ROOK, 0); - if (pos.pawn_attacks(strongerSide, rsq) & pos.pieces(weakerSide)) + if (pos.attacks_from(rsq, strongerSide) & pos.pieces(PAWN, weakerSide)) return ScaleFactor(0); } return SCALE_FACTOR_NONE; @@ -616,7 +616,7 @@ ScaleFactor ScalingFunction::apply(const Position &pos) { assert(pos.non_pawn_material(weakerSide) == Value(0)); assert(pos.piece_count(weakerSide, PAWN) == 0); - Bitboard pawns = pos.pieces(strongerSide); + Bitboard pawns = pos.pieces(PAWN, strongerSide); // Are all pawns on the 'a' file? if ((pawns & ~FileABB) == EmptyBoardBB) @@ -694,9 +694,9 @@ ScaleFactor ScalingFunction::apply(const Position &pos) { else { Bitboard ray = ray_bb(pawnSq, (strongerSide == WHITE)? SIGNED_DIR_N : SIGNED_DIR_S); - if (ray & pos.pieces(weakerSide)) + if (ray & pos.pieces(KING, weakerSide)) return ScaleFactor(0); - if( (pos.piece_attacks(weakerBishopSq) & ray) + if( (pos.attacks_from(weakerBishopSq) & ray) && square_distance(weakerBishopSq, pawnSq) >= 3) return ScaleFactor(0); } @@ -761,13 +761,13 @@ ScaleFactor ScalingFunction::apply(const Position& pos) { if ( ksq == blockSq1 && square_color(ksq) != square_color(wbsq) && ( bbsq == blockSq2 - || (pos.piece_attacks(blockSq2) & pos.pieces(weakerSide)) + || (pos.attacks_from(blockSq2) & pos.pieces(BISHOP, weakerSide)) || rank_distance(r1, r2) >= 2)) return ScaleFactor(0); else if ( ksq == blockSq2 && square_color(ksq) != square_color(wbsq) && ( bbsq == blockSq1 - || (pos.piece_attacks(blockSq1) & pos.pieces(weakerSide)))) + || (pos.attacks_from(blockSq1) & pos.pieces(BISHOP, weakerSide)))) return ScaleFactor(0); else return SCALE_FACTOR_NONE;