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Small touches in move generation

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No functional change.
This commit is contained in:
Marco Costalba 2013-07-21 11:01:24 +02:00
parent f73bb438aa
commit c45c6d308f
1 changed files with 2 additions and 4 deletions
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6
src/movegen.cpp
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@ -346,10 +346,9 @@ ExtMove* generate<EVASIONS>(const Position& pos, ExtMove* mlist) {
assert(pos.checkers());
Square from, checksq;
int checkersCnt = 0;
Color us = pos.side_to_move();
Square ksq = pos.king_square(us);
Square ksq = pos.king_square(us), from = ksq /* For SERIALIZE */, checksq;
Bitboard sliderAttacks = 0;
Bitboard b = pos.checkers();
@ -388,14 +387,13 @@ ExtMove* generate<EVASIONS>(const Position& pos, ExtMove* mlist) {
// Generate evasions for king, capture and non capture moves
b = pos.attacks_from<KING>(ksq) & ~pos.pieces(us) & ~sliderAttacks;
from = ksq;
SERIALIZE(b);
if (checkersCnt > 1)
return mlist; // Double check, only a king move can save the day
// Generate blocking evasions or captures of the checking piece
Bitboard target = between_bb(checksq, ksq) | pos.checkers();
Bitboard target = between_bb(checksq, ksq) | checksq;
return generate_all<EVASIONS>(pos, mlist, us, target);
}