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Use operator~ to flip colors and squares

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More natural and nicer. Idea from Critter.

No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
This commit is contained in:
Marco Costalba
2012-01-12 19:31:18 +01:00
parent c549f71f64
commit d98150dffc
8 changed files with 76 additions and 76 deletions
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8
src/movegen.cpp
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@@ -49,7 +49,7 @@ namespace {
Square rfrom = pos.castle_rook_square(CR[us]);
Square kto = relative_square(us, Side == KING_SIDE ? SQ_G1 : SQ_C1);
Square rto = relative_square(us, Side == KING_SIDE ? SQ_F1 : SQ_D1);
Bitboard enemies = pos.pieces(flip(us));
Bitboard enemies = pos.pieces(~us);
assert(!pos.in_check());
assert(pos.piece_on(kfrom) == make_piece(us, KING));
@@ -346,13 +346,13 @@ MoveStack* generate(const Position& pos, MoveStack* mlist) {
Bitboard target;
if (Type == MV_CAPTURE)
target = pos.pieces(flip(us));
target = pos.pieces(~us);
else if (Type == MV_NON_CAPTURE)
target = pos.empty_squares();
else if (Type == MV_NON_EVASION)
target = pos.pieces(flip(us)) | pos.empty_squares();
target = pos.pieces(~us) | pos.empty_squares();
mlist = generate_piece_moves<PAWN, Type>(pos, mlist, us, target);
mlist = generate_piece_moves<KNIGHT>(pos, mlist, us, target);
@@ -444,7 +444,7 @@ MoveStack* generate<MV_EVASION>(const Position& pos, MoveStack* mlist) {
checkersCnt++;
checksq = pop_1st_bit(&b);
assert(color_of(pos.piece_on(checksq)) == flip(us));
assert(color_of(pos.piece_on(checksq)) == ~us);
switch (type_of(pos.piece_on(checksq)))
{