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start bitboard integration

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Bruno Raoult
2023-06-22 16:08:57 +02:00
parent cb94ca52b9
commit 1154f141c9
11 changed files with 113 additions and 52 deletions
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44
src/eval.c
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@@ -5,7 +5,7 @@
* Some rights reserved. See COPYING.
*
* You should have received a copy of the GNU General Public License along with this
* program. If not, see <https://www.gnu.org/licenses/gpl-3.0-standalone.htmlL>.
* program. If not, see <https://www.gnu.org/licenses/gpl-3.0-standalone.html>.
*
* SPDX-License-Identifier: GPL-3.0-or-later <https://spdx.org/licenses/GPL-3.0-or-later.html>
*
@@ -13,26 +13,33 @@
#include <stdio.h>
#include <list.h>
#include <debug.h>
#include "eval.h"
#include "list.h"
#include "debug.h"
eval_t eval(pos_t *pos)
{
eval_t material[2] = {0};
eval_t control[2] = {0};
eval_t res = 0;
struct list_head *p_cur, *p_tmp, *list;
piece_list_t *piece;
//printf("val(%d-%c) = %lu\n", PAWN, P_LETTER(PAWN), P_VALUE(PAWN));
//printf("val(%d-%c) = %lu\n", KNIGHT, P_LETTER(KNIGHT), P_VALUE(KNIGHT));
//bitboard_print2(pos->bb[0][BB_PAWN], pos->bb[1][BB_PAWN]);
//bitboard_print2(pos->bb[0][BB_QUEEN], pos->bb[1][BB_QUEEN]);
/* 1) pieces value
*/
for (int color=0; color <2; ++color) {
list = &pos->pieces[color];
list_for_each_safe(p_cur, p_tmp, list) {
piece = list_entry(p_cur, piece_list_t, list);
if (PIECE(piece->piece) != KING)
material[color] += piece->value;
for (uint color = 0; color < 2; ++color) {
for (uint piece = PAWN; piece <= KING; piece <<= 1) {
uint bb = PIECETOBB(piece);
# ifdef DEBUG_EVAL
log_f(2, "color=%u piece=%u bb=%u=%c count=%ul val=%ld\n",
color, piece, bb, P_LETTER(piece), popcount64(pos->bb[color][bb]),
P_VALUE(piece));
# endif
/* attention here */
material[color] += popcount64(pos->bb[color][bb]) * P_VALUE(piece);
}
}
@@ -54,11 +61,11 @@ eval_t eval(pos_t *pos)
res, (float)res/10);
# endif
/* 3) mobility: 5 mobility diff = 1 pawn
/* 3) mobility: 10 mobility diff = 1 pawn
*/
res = pos->mobility[WHITE] - pos->mobility[BLACK];
# ifdef DEBUG_EVAL
log_f(2, "mobility: W:%ld B:%ld eval=%ld (%.3f pawns)\n",
log_f(2, "mobility: W:%ud B:%ud eval=%ld (%.3f pawns)\n",
pos->mobility[WHITE], pos->mobility[BLACK],
res, (float)res/5);
# endif
@@ -83,7 +90,7 @@ int main(int ac, char**av)
pos_t *pos;
eval_t res;
debug_init(2);
debug_level_set(9);
piece_pool_init();
moves_pool_init();
pos_pool_init();
@@ -95,10 +102,15 @@ int main(int ac, char**av)
fen2pos(pos, av[1]);
}
moves_gen(pos, OPPONENT(pos->turn), false);
moves_gen(pos, pos->turn, true);
pos_print(pos);
pos_pieces_print(pos);
moves_gen(pos, OPPONENT(pos->turn), false);
moves_print(pos, M_PR_SEPARATE);
//pos_print(pos);
//pos_pieces_print(pos);
moves_gen(pos, pos->turn, false);
moves_print(pos, M_PR_SEPARATE);
res = eval(pos);
printf("eval=%ld (%.3f pawns)\n", res, (float)res/100);
}