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/*
* Entertain plugin — chess.h (internal)
* Chess game engine for HyBBX Entertain area.
*/
#ifndef ENTERTAIN_CHESS_H
#define ENTERTAIN_CHESS_H
#include "hybbx/types.h"
struct hybbx_session;
struct hybbx_service;
#define CHESS_BOARD_SIZE 8
#define CHESS_GAME_MAX 16
#define CHESS_SPECTATOR_MAX 32
#define CHESS_REFRESH_SEC 15
#define CHESS_DEFAULT_MAX 8
#define CHESS_NAME_MAX 32
#define CHESS_SAN_MAX 8
#define CHESS_EMPTY '.'
typedef enum {
CHESS_COLOR_NONE = 0,
CHESS_WHITE,
CHESS_BLACK
} chess_color_t;
typedef enum {
CHESS_RESULT_NONE = 0,
CHESS_WHITE_WINS,
CHESS_BLACK_WINS,
CHESS_DRAW_STALEMATE,
CHESS_DRAW_AGREEMENT
} chess_result_t;
typedef struct chess_board {
char sq[CHESS_BOARD_SIZE][CHESS_BOARD_SIZE];
} chess_board_t;
typedef struct chess_game {
int active;
char white_name[CHESS_NAME_MAX];
char black_name[CHESS_NAME_MAX];
struct hybbx_session *white_session;
struct hybbx_session *black_session;
struct hybbx_session *spectators[CHESS_SPECTATOR_MAX];
unsigned spectator_count;
chess_board_t board;
chess_color_t turn;
unsigned move_number;
chess_result_t result;
char last_move_san[CHESS_SAN_MAX];
unsigned tick_counter;
char game_id[8];
} chess_game_t;
/* Lifecycle */
void chess_init(unsigned max_games);
void chess_shutdown(void);
unsigned chess_max_games(void);
/* Game management */
chess_game_t *chess_create_game(struct hybbx_session *white, const char *name);
chess_game_t *chess_find_open_game(void);
chess_game_t *chess_find_game_by_id(const char *id);
chess_game_t *chess_get_game(unsigned index);
int chess_join_game(chess_game_t *g, struct hybbx_session *black, const char *name);
int chess_add_spectator(chess_game_t *g, struct hybbx_session *spec);
void chess_remove_spectator(chess_game_t *g, struct hybbx_session *spec);
int chess_is_player(const chess_game_t *g, const struct hybbx_session *s);
int chess_is_spectator(const chess_game_t *g, const struct hybbx_session *s);
chess_color_t chess_player_color(const chess_game_t *g, const struct hybbx_session *s);
/* Session slot (for future use) */
unsigned chess_session_slot(const struct hybbx_session *s);
void chess_session_set_slot(struct hybbx_session *s, unsigned slot);
/* Moves + display */
int chess_make_move(chess_game_t *g, const char *from, const char *to,
char promote, char *err, size_t errlen);
void chess_send_board(chess_game_t *g, struct hybbx_session *s);
void chess_resign(chess_game_t *g, struct hybbx_session *who);
void chess_offer_draw(chess_game_t *g, struct hybbx_session *who);
/* Tick — call from plugin tick every 1s */
void chess_tick(struct hybbx_service *service);
#endif /* ENTERTAIN_CHESS_H */
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