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Fix parametrized direction in pawns generation

Browse source 
It worked by accident because we always called both directions,
but definition was wrong.

Functional change due to different generation order, but
perft numbers are the correct ones.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
This commit is contained in:
Marco Costalba 2011-07-15 11:40:09 +02:00
parent 9c8c0de538
commit 37d551fb39
1 changed files with 2 additions and 2 deletions
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4
src/movegen.cpp
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@ -406,8 +406,8 @@ namespace {
const Bitboard TRank7BB = (Us == WHITE ? Rank7BB : Rank2BB);
const Bitboard TRank3BB = (Us == WHITE ? Rank3BB : Rank6BB);
const Square UP = (Us == WHITE ? DELTA_N : DELTA_S);
const Square RIGHT_UP = (Us == WHITE ? DELTA_NE : DELTA_SE);
const Square LEFT_UP = (Us == WHITE ? DELTA_NW : DELTA_SW);
const Square RIGHT_UP = (Us == WHITE ? DELTA_NE : DELTA_SW);
const Square LEFT_UP = (Us == WHITE ? DELTA_NW : DELTA_SE);
Square to;
Bitboard b1, b2, dc1, dc2, pawnPushes, emptySquares;