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Change pawn_attacks() API

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Instead of pawn_attacks(Color c, Square s) define as
pawn_attacks(Square s, Color c) to be more aligned to
the others attack info functions.

No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
This commit is contained in:
Marco Costalba
2009-09-20 08:59:18 +01:00
parent 62a8f393f1
commit 049139d025
6 changed files with 29 additions and 32 deletions
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10
src/movegen.cpp
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@@ -275,7 +275,7 @@ MoveStack* generate_evasions(const Position& pos, MoveStack* mlist, Bitboard pin
// Generate captures of the checking piece
// Pawn captures
b1 = pos.pawn_attacks(them, checksq) & pos.pieces(PAWN, us) & ~pinned;
b1 = pos.pawn_attacks(checksq, them) & pos.pieces(PAWN, us) & ~pinned;
while (b1)
{
from = pop_1st_bit(&b1);
@@ -326,7 +326,7 @@ MoveStack* generate_evasions(const Position& pos, MoveStack* mlist, Bitboard pin
if (pos.ep_square() != SQ_NONE && (checkers & pos.pieces(PAWN, them)))
{
to = pos.ep_square();
b1 = pos.pawn_attacks(them, to) & pos.pieces(PAWN, us);
b1 = pos.pawn_attacks(to, them) & pos.pieces(PAWN, us);
// The checking pawn cannot be a discovered (bishop) check candidate
// otherwise we were in check also before last double push move.
@@ -700,7 +700,7 @@ namespace {
assert(Us != WHITE || square_rank(pos.ep_square()) == RANK_6);
assert(Us != BLACK || square_rank(pos.ep_square()) == RANK_3);
Bitboard b1 = pawns & pos.pawn_attacks(Them, pos.ep_square());
Bitboard b1 = pawns & pos.pawn_attacks(pos.ep_square(), Them);
assert(b1 != EmptyBoardBB);
while (b1)
@@ -819,11 +819,11 @@ namespace {
// Direct checks, single pawn pushes
Bitboard empty = pos.empty_squares();
b2 = move_pawns<Us, DELTA_N>(b1) & empty;
b3 = b2 & pos.pawn_attacks(Them, ksq);
b3 = b2 & pos.pawn_attacks(ksq, Them);
SERIALIZE_MOVES_D(b3, -TDELTA_N);
// Direct checks, double pawn pushes
b3 = move_pawns<Us, DELTA_N>(b2 & TRank3BB) & empty & pos.pawn_attacks(Them, ksq);
b3 = move_pawns<Us, DELTA_N>(b2 & TRank3BB) & empty & pos.pawn_attacks(ksq, Them);
SERIALIZE_MOVES_D(b3, -TDELTA_N -TDELTA_N);
return mlist;
}