int Robot::Playing::start_main_timer() {
 TOP::Box & tb = TOP::box();
 printf("Playing: Starting timer for %d seconds\n",ROUND_TIME);

 /* Watch stdin (fd 0) to see when it has input. */
 FD_ZERO(&tb.rfds);
 FD_SET(0, &tb.rfds);

 for (;;) {
	/* Copy rfds as select modify the original */
	memcpy(&tb.copy_rfds,&tb.rfds,sizeof(tb.rfds));
 	/* Wait up to five seconds. */
 	tb.tv.tv_sec = 1;
 	tb.tv.tv_usec = 0;

 	int retval = select(1, &tb.copy_rfds, NULL, NULL, &tb.tv);
 	/* Don't rely on the value of tv now! */

 	if (retval == -1)
 		perror("select()");
 	else if (retval) {
 		printf("Data is available now.\n");
 		/* FD_ISSET(0, &rfds) will be true. */
		char toto;
		read(1,&toto,1);
		if (toto = 'a') {
			printf("Shooting!\n");
			setState<Shoot>();
		}
	}
 	else {
		tb.incrementTimer();
		if (tb.getRunningTime()==ROUND_TIME) {
			setState<Disabled>();
			break;
		}
 		printf("No data within one seconds.\n");
	}
 }
}