#ifndef KHET_GAME_H
#define KHET_GAME_H

#define NONE 0 
#define PHARAO 1
#define DJHED  2
#define PYRAMID 3
#define OBELISK 4
#define OBELISK2 5

#define N_PIECE_TYPES 6

#define SILVER 0
#define RED 1

#define BOARD_WIDTH 10
#define BOARD_HEIGHT 8

#define F_ROTATE 1
#define F_SPLIT 2

#define E_ILLEGAL_MOVE -1
#define E_UNKNOWN_COMMAND -2
#define HUGE_SUCCESS 1

// return values for laser():
#define L_WALL 0
#define L_PIECE 1
#define SILVER_WINS 2
#define RED_WINS 3

typedef struct square {
    unsigned int piece : 4;
    unsigned int side : 1;
    unsigned int dir : 2;
} square_t;

typedef struct {
    int move;
    int winner;
    square_t board[BOARD_WIDTH][BOARD_HEIGHT];
    int laser_pos[2];
} game_t;

typedef struct {
    char ch;
    char *name;
} sideinfo_t;

typedef enum { R_CW, R_CCW } rot_t;
typedef enum { D_NW=0, D_N, D_NE, D_E, D_SE, D_S, D_SW, D_W } dir_t;

extern char classic_setup[];
extern sideinfo_t sideinfo[];

int laser_at(game_t *game, int x, int y);
int laser(game_t *game, int side);
int movable(game_t *game, int row, int col, int side);
int rotate(game_t *game, int side, int row, int col, rot_t dir);
int move(game_t *game, int side, int row, int col, int dir, int flags);
void place(game_t *game, int row, int col, int piece, int side, int dir);
void setup_board(game_t *game, char *desc);
void init_game(game_t *game);


#endif