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Space inflate generate_castle_moves()

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No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
This commit is contained in:
Marco Costalba
2008-10-18 11:07:27 +02:00
parent 146bb2dfa7
commit 35fd5ce5bc
1 changed files with 48 additions and 41 deletions
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87
src/movegen.cpp
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@@ -970,60 +970,67 @@ namespace {
int generate_castle_moves(const Position &pos, MoveStack *mlist, Color us) { int generate_castle_moves(const Position &pos, MoveStack *mlist, Color us) {
int n = 0; int n = 0;
if(pos.can_castle(us)) { if (pos.can_castle(us))
Color them = opposite_color(us); {
Square ksq = pos.king_square(us); Color them = opposite_color(us);
assert(pos.piece_on(ksq) == king_of_color(us)); Square ksq = pos.king_square(us);
if(pos.can_castle_kingside(us)) { assert(pos.piece_on(ksq) == king_of_color(us));
Square rsq = pos.initial_kr_square(us);
Square g1 = relative_square(us, SQ_G1);
Square f1 = relative_square(us, SQ_F1);
Square s;
bool illegal = false;
assert(pos.piece_on(rsq) == rook_of_color(us)); if (pos.can_castle_kingside(us))
{
Square rsq = pos.initial_kr_square(us);
Square g1 = relative_square(us, SQ_G1);
Square f1 = relative_square(us, SQ_F1);
Square s;
bool illegal = false;
for(s = Min(ksq, g1); s <= Max(ksq, g1); s++) assert(pos.piece_on(rsq) == rook_of_color(us));
if((s != ksq && s != rsq && pos.square_is_occupied(s))
|| pos.square_is_attacked(s, them))
illegal = true;
for(s = Min(rsq, f1); s <= Max(rsq, f1); s++)
if(s != ksq && s != rsq && pos.square_is_occupied(s))
illegal = true;
if(!illegal) for (s = Min(ksq, g1); s <= Max(ksq, g1); s++)
mlist[n++].move = make_castle_move(ksq, rsq); if ( (s != ksq && s != rsq && pos.square_is_occupied(s))
|| pos.square_is_attacked(s, them))
illegal = true;
for (s = Min(rsq, f1); s <= Max(rsq, f1); s++)
if (s != ksq && s != rsq && pos.square_is_occupied(s))
illegal = true;
if (!illegal)
mlist[n++].move = make_castle_move(ksq, rsq);
} }
if(pos.can_castle_queenside(us)) { if (pos.can_castle_queenside(us))
Square rsq = pos.initial_qr_square(us); {
Square c1 = relative_square(us, SQ_C1); Square rsq = pos.initial_qr_square(us);
Square d1 = relative_square(us, SQ_D1); Square c1 = relative_square(us, SQ_C1);
Square s; Square d1 = relative_square(us, SQ_D1);
bool illegal = false; Square s;
bool illegal = false;
assert(pos.piece_on(rsq) == rook_of_color(us)); assert(pos.piece_on(rsq) == rook_of_color(us));
for(s = Min(ksq, c1); s <= Max(ksq, c1); s++) for (s = Min(ksq, c1); s <= Max(ksq, c1); s++)
if((s != ksq && s != rsq && pos.square_is_occupied(s)) if ( (s != ksq && s != rsq && pos.square_is_occupied(s))
|| pos.square_is_attacked(s, them)) || pos.square_is_attacked(s, them))
illegal = true;
for (s = Min(rsq, d1); s <= Max(rsq, d1); s++)
if (s != ksq && s != rsq && pos.square_is_occupied(s))
illegal = true;
if ( square_file(rsq) == FILE_B
&& ( pos.piece_on(relative_square(us, SQ_A1)) == rook_of_color(them)
|| pos.piece_on(relative_square(us, SQ_A1)) == queen_of_color(them)))
illegal = true; illegal = true;
for(s = Min(rsq, d1); s <= Max(rsq, d1); s++)
if(s != ksq && s != rsq && pos.square_is_occupied(s))
illegal = true;
if(square_file(rsq) == FILE_B &&
(pos.piece_on(relative_square(us, SQ_A1)) == rook_of_color(them) ||
pos.piece_on(relative_square(us, SQ_A1)) == queen_of_color(them)))
illegal = true;
if(!illegal) if (!illegal)
mlist[n++].move = make_castle_move(ksq, rsq); mlist[n++].move = make_castle_move(ksq, rsq);
} }
} }
return n; return n;
} }