HCha/Stockfish
1
0
Fork 0
mirror of https://github.com/HChaZZY/Stockfish.git synced 2025-12-20 09:06:45 +08:00
Code Issues Packages Projects Releases Wiki Activity

Cleanup piece_attacks_square() functions

Browse Source 
Most of them are not required to be public and are
used in one place only so remove them and use its
definitions.

Also rename piece_attacks_square() in piece_attacks()
to be aligned to the current naming policy.

No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
This commit is contained in:
Marco Costalba
2009-09-20 09:43:28 +01:00
parent 0e0adfe2e1
commit f74f42b298
4 changed files with 23 additions and 34 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
src/search.cpp
View File

@@ -2153,7 +2153,9 @@ namespace {
// the second move is assumed to be a move from the current position.
bool connected_moves(const Position& pos, Move m1, Move m2) {
Square f1, t1, f2, t2;
Piece p;
assert(move_is_ok(m1));
assert(move_is_ok(m2));
@@ -2179,11 +2181,12 @@ namespace {
return true;
// Case 4: The destination square for m2 is attacked by the moving piece in m1
if (pos.piece_attacks_square(pos.piece_on(t1), t1, t2))
p = pos.piece_on(t1);
if (bit_is_set(pos.piece_attacks(p, t1), t2))
return true;
// Case 5: Discovered check, checking piece is the piece moved in m1
if ( piece_is_slider(pos.piece_on(t1))
if ( piece_is_slider(p)
&& bit_is_set(squares_between(t1, pos.king_square(pos.side_to_move())), f2)
&& !bit_is_set(squares_between(t1, pos.king_square(pos.side_to_move())), t2))
{
@@ -2191,19 +2194,19 @@ namespace {
Color us = pos.side_to_move();
Square ksq = pos.king_square(us);
clear_bit(&occ, f2);
if (pos.type_of_piece_on(t1) == BISHOP)
if (type_of_piece(p) == BISHOP)
{
if (bit_is_set(bishop_attacks_bb(ksq, occ), t1))
return true;
}
else if (pos.type_of_piece_on(t1) == ROOK)
else if (type_of_piece(p) == ROOK)
{
if (bit_is_set(rook_attacks_bb(ksq, occ), t1))
return true;
}
else
{
assert(pos.type_of_piece_on(t1) == QUEEN);
assert(type_of_piece(p) == QUEEN);
if (bit_is_set(queen_attacks_bb(ksq, occ), t1))
return true;
}