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Rewrite some bitboard init code

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And move the static function Position::attacks_from() to
bitboard code renaming it attacks_bb()

No functional change.
This commit is contained in:
Marco Costalba
2013-11-30 10:27:23 +01:00
parent 6ea5dc294c
commit 034a2b04f2
5 changed files with 27 additions and 36 deletions
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4
src/search.cpp
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@@ -1351,7 +1351,7 @@ moves_loop: // When in check and at SpNode search starts from here
return true;
// Second's destination is defended by the first move's piece
Bitboard m1att = pos.attacks_from(pos.piece_on(m1to), m1to, pos.pieces() ^ m2from);
Bitboard m1att = attacks_bb(pos.piece_on(m1to), m1to, pos.pieces() ^ m2from);
if (m1att & m2to)
return true;
@@ -1395,7 +1395,7 @@ moves_loop: // When in check and at SpNode search starts from here
Piece pc = pos.piece_on(m1from);
// The moved piece attacks the square 'tto' ?
if (pos.attacks_from(pc, m1to, occ) & m2to)
if (attacks_bb(pc, m1to, occ) & m2to)
return true;
// Scan for possible X-ray attackers behind the moved piece