#ifndef ENGINE_H

#define ENGINE_H

#include <stdio.h>

#include "options.h"

#define fatal(msg)\

do {\

fprintf(stderr, "line %d: %s\n", __LINE__, msg);\

abort();\

} while (0)

struct gamestate {

/* Game state */

int *grid_data_ptr;

int **grid;

int gridsize;

int moved;

long score;

long score_high;

long score_last;

int print_width;

int blocks_in_play;

/* Variable command line options */

struct gameoptions *opts;

};

enum {

dir_invalid,

dir_down,

dir_left,

dir_right,

dir_up

};

struct gfx_state;

int gamestate_end_condition(struct gamestate*);

void gamestate_new_block(struct gamestate*);

int gamestate_tick(struct gfx_state*, struct gamestate*, int, void (*callback)(struct gfx_state*, struct gamestate*));

void gamestate_clear(struct gamestate*);

struct gamestate* gamestate_init(int argc, char **argv);

#endif