static int console_reader(void *arg)
{
char buf[1024];
_key_event kevents[16];
ssize_t len;
ssize_t write_len;
struct console *con = (struct console *)arg;
for(;;) {
len = read(con->keyboard_fd, kevents, sizeof(kevents));
if(len < 0)
break;
len = process_key_events(kevents, len / sizeof(_key_event), buf, sizeof(buf), con->keyboard_fd);
if(len <= 0)
continue;
write_len = write(con->tty_master_fd, buf, len);
}
_kern_sem_release(con->wait_sem, 1);
return 0;
}
// run_martet: The game loop. Returns final score.
int run_martet(SDL_Surface* screen, SDL_Surface* board) {
Tetromino* active_tetromino;
Tetromino* next_tetromino;
// Create ingame menu
struct Menu* ingame_menu = menu_create();
menu_addelement(ingame_menu, "Continue");
menu_addelement(ingame_menu, "Quit Current Game");
ingame_menu->active_element = &ingame_menu->elements[0];
ingame_menu->active_element->active = 1;
int score = 0;
srand((unsigned) time(NULL));
board_create();
next_tetromino = tetcreaterand();
update_status_bar(next_tetromino, screen, score);
active_tetromino = tetcreaterand();
active_tetromino->position[0] = 4;
struct Timer* timer = create_timer();
timer_change_alarm_interval(timer, GAME_SPEED);
timer_start(timer);
bool running = true;
while (running){
int event = process_key_events(active_tetromino, tetaction);
if (event == KEYEVENT_EXIT)
exit(0);
else if (event == KEYEVENT_MENU) {
if (ingame_menu_martet(screen, board, ingame_menu) == 1)
running = false;
}
else if (event == KEYEVENT_PAUSE)
pause_martet(screen, board);
if (timer_update(timer)) {
// If collision and tetromino not deleted
if ( tetmove('d', active_tetromino) == 0
&& active_tetromino->color != TETROMINO_DELETE) {
place_tetromino(active_tetromino);
active_tetromino->color = TETROMINO_DELETE;
}
else if ( active_tetromino->color == TETROMINO_DELETE ) {
free(active_tetromino);
active_tetromino = next_tetromino;
next_tetromino = tetcreaterand();
if (check_rows(&score)) { // If score has increased.
timer_change_alarm_interval(timer,
GAME_SPEED /
sqrt( (double) score/5) + 1);
}
}
if ( next_tetromino == NULL ) // If game over
break;
update_status_bar(next_tetromino, screen, score);
}
clear_surface(board, NULL);
draw_board(board);
draw_tetromino(board, active_tetromino);
draw_ghost_tetromino(board, active_tetromino);
draw_surface(0, 0, board, screen, NULL);
SDL_Flip(screen);
}
if (active_tetromino) {
free(active_tetromino);
}
free(next_tetromino);
free(timer);
menu_destroy(ingame_menu);
return score;
}
