HCha/Stockfish
1
0
Fork 0
mirror of https://github.com/HChaZZY/Stockfish.git synced 2025-12-15 22:56:25 +08:00
Code Issues Packages Projects Releases Wiki Activity

Change pawn_attacks() API

Browse Source 
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
Download Patch File Download Diff File Expand all files Collapse all files

18
src/position.cpp
View File

@@ -384,8 +384,8 @@ Bitboard Position::discovered_check_candidates(Color c) const {
Bitboard Position::attacks_to(Square s) const {
return (pawn_attacks(BLACK, s) & pieces(PAWN, WHITE))
| (pawn_attacks(WHITE, s) & pieces(PAWN, BLACK))
return (pawn_attacks(s, BLACK) & pieces(PAWN, WHITE))
| (pawn_attacks(s, WHITE) & pieces(PAWN, BLACK))
| (piece_attacks<KNIGHT>(s) & pieces(KNIGHT))
| (piece_attacks<ROOK>(s) & pieces(ROOK, QUEEN))
| (piece_attacks<BISHOP>(s) & pieces(BISHOP, QUEEN))
@@ -402,8 +402,8 @@ bool Position::piece_attacks_square(Piece p, Square f, Square t) const {
switch (p)
{
case WP: return pawn_attacks_square(WHITE, f, t);
case BP: return pawn_attacks_square(BLACK, f, t);
case WP: return pawn_attacks_square(f, t, WHITE);
case BP: return pawn_attacks_square(f, t, BLACK);
case WN: case BN: return piece_attacks_square<KNIGHT>(f, t);
case WB: case BB: return piece_attacks_square<BISHOP>(f, t);
case WR: case BR: return piece_attacks_square<ROOK>(f, t);
@@ -548,7 +548,7 @@ bool Position::move_is_check(Move m, Bitboard dcCandidates) const {
{
case PAWN:
if (bit_is_set(pawn_attacks(them, ksq), to)) // Normal check?
if (bit_is_set(pawn_attacks(ksq, them), to)) // Normal check?
return true;
if ( dcCandidates // Discovered check?
@@ -667,7 +667,7 @@ inline void Position::update_checkers(Bitboard* pCheckersBB, Square ksq, Square
else if ( Piece != KING
&& !Slider
&& bit_is_set(Piece == PAWN ? pawn_attacks(opposite_color(sideToMove), ksq) : piece_attacks<Piece>(ksq), to))
&& bit_is_set(Piece == PAWN ? pawn_attacks(ksq, opposite_color(sideToMove)) : piece_attacks<Piece>(ksq), to))
set_bit(pCheckersBB, to);
// Discovery checks
@@ -806,7 +806,7 @@ void Position::do_move(Move m, StateInfo& newSt, Bitboard dcCandidates) {
// Set en passant square, only if moved pawn can be captured
if (abs(int(to) - int(from)) == 16)
{
if (pawn_attacks(us, from + (us == WHITE ? DELTA_N : DELTA_S)) & pieces(PAWN, them))
if (pawn_attacks(from + (us == WHITE ? DELTA_N : DELTA_S), us) & pieces(PAWN, them))
{
st->epSquare = Square((int(from) + int(to)) / 2);
key ^= zobEp[st->epSquare];
@@ -1362,8 +1362,8 @@ int Position::see(Square from, Square to) const {
| (bishop_attacks_bb(to, occ) & pieces(BISHOP, QUEEN))
| (piece_attacks<KNIGHT>(to) & pieces(KNIGHT))
| (piece_attacks<KING>(to) & pieces(KING))
| (pawn_attacks(WHITE, to) & pieces(PAWN, BLACK))
| (pawn_attacks(BLACK, to) & pieces(PAWN, WHITE));
| (pawn_attacks(to, WHITE) & pieces(PAWN, BLACK))
| (pawn_attacks(to, BLACK) & pieces(PAWN, WHITE));
if (from != SQ_NONE)
break;