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Simplify the shelter mask

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The line 246 of pawns.cpp is not necessary, because we restrict the bitboards
to file_of(f) in lines 253 and 256 anyway.

No functional change.
This commit is contained in:
Stéphane Nicolet 2018-04-18 19:53:39 +02:00
parent 66af80972a
commit 73e8daa150
1 changed files with 2 additions and 4 deletions
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6
src/pawns.cpp
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@ -240,14 +240,12 @@ Value Entry::shelter_storm(const Position& pos, Square ksq) {
enum { BlockedByKing, Unopposed, BlockedByPawn, Unblocked }; enum { BlockedByKing, Unopposed, BlockedByPawn, Unblocked };
File center = std::max(FILE_B, std::min(FILE_G, file_of(ksq))); Bitboard b = pos.pieces(PAWN) & (forward_ranks_bb(Us, ksq) | rank_bb(ksq));
Bitboard b = pos.pieces(PAWN)
& (forward_ranks_bb(Us, ksq) | rank_bb(ksq))
& (adjacent_files_bb(center) | file_bb(center));
Bitboard ourPawns = b & pos.pieces(Us); Bitboard ourPawns = b & pos.pieces(Us);
Bitboard theirPawns = b & pos.pieces(Them); Bitboard theirPawns = b & pos.pieces(Them);
Value safety = MaxSafetyBonus; Value safety = MaxSafetyBonus;
File center = std::max(FILE_B, std::min(FILE_G, file_of(ksq)));
for (File f = File(center - 1); f <= File(center + 1); ++f) for (File f = File(center - 1); f <= File(center + 1); ++f)
{ {
b = ourPawns & file_bb(f); b = ourPawns & file_bb(f);