HCha/Stockfish
1
0
Fork 0
mirror of https://github.com/HChaZZY/Stockfish.git synced 2025-12-06 10:53:50 +08:00
Code Issues Packages Projects Releases Wiki Activity

Use do_move_bb() in move_attacks_square()

Browse Source 
No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
This commit is contained in:
Marco Costalba
2010-10-10 08:56:07 +02:00
parent d440ddb487
commit 5dfbbb79be
1 changed files with 6 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
src/position.cpp
View File

@@ -523,6 +523,7 @@ bool Position::move_attacks_square(Move m, Square s) const {
assert(move_is_ok(m));
assert(square_is_ok(s));
Bitboard occ, xray;
Square f = move_from(m), t = move_to(m);
assert(square_is_occupied(f));
@@ -531,12 +532,11 @@ bool Position::move_attacks_square(Move m, Square s) const {
return true;
// Move the piece and scan for X-ray attacks behind it
Bitboard occ = occupied_squares();
Color us = color_of_piece_on(f);
clear_bit(&occ, f);
set_bit(&occ, t);
Bitboard xray = ( (rook_attacks_bb(s, occ) & pieces(ROOK, QUEEN))
|(bishop_attacks_bb(s, occ) & pieces(BISHOP, QUEEN))) & pieces_of_color(us);
occ = occupied_squares();
do_move_bb(&occ, make_move_bb(f, t));
xray = ( (rook_attacks_bb(s, occ) & pieces(ROOK, QUEEN))
|(bishop_attacks_bb(s, occ) & pieces(BISHOP, QUEEN)))
& pieces_of_color(color_of_piece_on(f));
// If we have attacks we need to verify that are caused by our move
// and are not already existent ones.