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add movegen draft, add king square in pos_t, BRQKN move gen (untested)

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Bruno Raoult
2024-02-20 21:00:45 +01:00
parent 403e625cbe
commit 568b39e366
11 changed files with 231 additions and 53 deletions
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84
src/move.h
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@@ -16,19 +16,50 @@
#include "chessdefs.h"
#include "position.h"
#include "pool.h"
//#include "pool.h"
#include "piece.h"
/* move flags
/* move structure:
* 3 2 2 1 1 1 1 1 1
* 1 5 4 8 7 5 4 2 1 6 5 0
* UUUUUUU FFFFFFF ppp ccc tttttt ffffff
*
* bits range type mask get desc
* ffffff 0-5 square_t 3f &63 from
* tttttt 6-11 square_t fc0 (>>6)&63 to
* ccc 12-14 piece_type_t 7000 (>>12)&7 captured
* ppp 15-17 piece_type_t 38000 (>>15)&7 promoted
* FFFFFFF 18-24 N/A 1fc0000 N/A flags
* UUUUUUU 25-31 unused fe000000 N/A future usage ?
*/
typedef unsigned char move_flags_t;
#define M_NORMAL 0x00
#define M_CHECK 0x01 /* unsure if we know */
#define M_CAPTURE 0x02
#define M_EN_PASSANT 0x04
#define M_PROMOTION 0x08
#define M_CASTLE_K 0x10
#define M_CASTLE_Q 0x20
#define move_t u32
#define M_
/* move flags */
#define M_FLAGS_BEG 18
#define M_HAS_FLAGS mask(_M_FLAGS_BEG + 0) /* probably unused */
#define M_CAPTURE mask(_M_FLAGS_BEG + 1)
#define M_ENPASSANT mask(_M_FLAGS_BEG + 2)
#define M_PROMOTION mask(_M_FLAGS_BEG + 3)
#define M_CASTLE_K mask(_M_FLAGS_BEG + 4)
#define M_CASTLE_Q mask(_M_FLAGS_BEG + 5)
#define M_CHECK mask(_M_FLAGS_BEG + 6) /* probably unknown/useless */
#define M_FLAGS (M_CAPTURE | M_ENPASSANT | M_PROMOTION | \
M_CASTLE_K | M_CASTLE_Q | M_CHECK)
#define M_NORMAL (~M_FLAGS)
#define MOVES_MAX 256
static inline move_t move_make(square_t from, square_t to)
{
return (to << 3) | from;
}
static inline move_t move_from(move_t move)
{
return move & 56;
}
/* moves_print flags
*/
@@ -40,30 +71,23 @@ typedef unsigned char move_flags_t;
#define M_PR_SEPARATE 0x40 /* separate captures */
#define M_PR_LONG 0x80
typedef struct move_s {
piece_t piece;
square_t from, to;
piece_t capture; /* captured piece */
piece_t promotion; /* promoted piece */
move_flags_t flags;
eval_t negamax;
eval_t eval;
eval_t eval_simple;
pos_t *pos;
struct list_head list; /* next move */
} move_t;
typedef struct {
move_t move[MOVES_MAX];
int nmoves; /* total moves (fill) */
int curmove; /* current move (use) */
} movelist_t;
pool_t *moves_pool_init();
void moves_pool_stats();
int move_print(int movenum, move_t *move, move_flags_t flags);
void moves_print(pos_t *move, move_flags_t flags);
//pool_t *moves_pool_init();
//void moves_pool_stats();
//int move_print(int movenum, move_t *move, move_flags_t flags);
//void moves_print(pos_t *move, move_flags_t flags);
void move_del(struct list_head *ptr);
int moves_del(pos_t *pos);
//void move_del(struct list_head *ptr);
//int moves_del(pos_t *pos);
int pseudo_moves_castle(pos_t *pos, bool color, bool doit, bool do_king);
int pseudo_moves_gen(pos_t *pos, piece_list_t *piece, bool doit, bool do_king);
int pseudo_moves_pawn(pos_t *pos, piece_list_t *piece, bool doit);
//int pseudo_moves_gen(pos_t *pos, piece_list_t *piece, bool doit, bool do_king);
//int pseudo_moves_pawn(pos_t *pos, piece_list_t *piece, bool doit);
int moves_gen(pos_t *pos, bool color, bool doit, bool do_king);
int moves_gen_king_moves(pos_t *pos, bool color, bool doit);