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add occ param in sq_attackers()

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Bruno Raoult
2024-03-15 09:14:10 +01:00
parent 92dcb1e778
commit 4eb620a873
2 changed files with 8 additions and 6 deletions
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8
src/attack.c
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@@ -26,6 +26,7 @@
/** /**
* sq_attackers() - find attackers on a square * sq_attackers() - find attackers on a square
* @pos: position * @pos: position
* @occ: occupation mask used
* @sq: square to test * @sq: square to test
* @c: attacker color * @c: attacker color
* *
@@ -39,11 +40,11 @@
* *
* @Return: a bitboard of attackers. * @Return: a bitboard of attackers.
*/ */
bitboard_t sq_attackers(const pos_t *pos, const square_t sq, const color_t c) bitboard_t sq_attackers(const pos_t *pos, const bitboard_t occ, const square_t sq, const color_t c)
{ {
bitboard_t attackers = 0, tmp; bitboard_t attackers = 0, tmp;
bitboard_t sqbb = mask(sq); bitboard_t sqbb = mask(sq);
bitboard_t occ = pos_occ(pos); //bitboard_t occ = pos_occ(pos);
bitboard_t to; bitboard_t to;
color_t opp = OPPONENT(c); color_t opp = OPPONENT(c);
@@ -151,5 +152,6 @@ bitboard_t sq_pinners(const pos_t *pos, const square_t sq, const color_t color)
*/ */
bitboard_t sq_attackers_all(const pos_t *pos, const square_t sq) bitboard_t sq_attackers_all(const pos_t *pos, const square_t sq)
{ {
return sq_attackers(pos, sq, WHITE) | sq_attackers(pos, sq, BLACK); bitboard_t occ = pos_occ(pos);
return sq_attackers(pos, occ, sq, WHITE) | sq_attackers(pos, occ, sq, BLACK);
} }

6
src/attack.h
View File

@@ -17,7 +17,7 @@
#include "chessdefs.h" #include "chessdefs.h"
#include "bitboard.h" #include "bitboard.h"
extern bitboard_t sq_attackers(const pos_t *pos, const square_t sq, const color_t c); bitboard_t sq_attackers(const pos_t *pos, const bitboard_t occ, const square_t sq, const color_t c);
extern bitboard_t sq_attackers_all(const pos_t *pos, const square_t sq); bitboard_t sq_attackers_all(const pos_t *pos, const square_t sq);
extern bitboard_t sq_pinners(const pos_t *pos, const square_t sq, const color_t c); bitboard_t sq_pinners(const pos_t *pos, const square_t sq, const color_t c);
#endif #endif