destruct.c

<B>Digital的Unix操作系统VAX 4.2源码</B>

#ifndef lint
static char sccsid[] = "@(#)destruct.c	4.3	(Berkeley)	5/27/83";
#endif not lint

# include	"trek.h"

/*
**  Self Destruct Sequence
**
**	The computer starts up the self destruct sequence.  Obviously,
**	if the computer is out nothing can happen.  You get a countdown
**	and a request for password.  This must match the password that
**	you entered at the start of the game.
**
**	You get to destroy things when you blow up; hence, it is
**	possible to win the game by destructing if you take the last
**	Klingon with you.
**
**	By the way, the \032 in the message is a ^Z, which is because
**	the terminal in my office is an ADM-3, which uses that char-
**	acter to clear the screen.  I also stick in a \014 (form feed)
**	because that clears some other screens.
**
**	Uses trace flag 41
*/

destruct()
{
	char		checkpass[15];
	register int	i, j;
	double		zap;

	if (damaged(COMPUTER))
		return (out(COMPUTER));
	printf("\n --- WORKING ---\n");
	sleep(3);
	/* output the count 10 9 8 7 6 */
	for (i = 10; i > 5; i--)
	{
		for (j = 10;  j > i; j--)
			printf("   ");
		printf("%d\n", i);
		sleep(1);
	}
	/* check for password on new line only */
	skiptonl(0);
	getstrpar("Enter password verification", checkpass, 14, 0);
	sleep(2);
	if (!sequal(checkpass, Game.passwd))
		return (printf("Self destruct sequence aborted\n"));
	printf("Password verified; self destruct sequence continues:\n");
	sleep(2);
	/* output count 5 4 3 2 1 0 */
	for (i = 5; i >= 0; i--)
	{
		sleep(1);
		for (j = 5; j > i; j--)
			printf("   ");
		printf("%d\n", i);
	}
	sleep(2);
	printf("\032\014***** %s destroyed *****\n", Ship.shipname);
	Game.killed = 1;
	/* let's see what we can blow up!!!! */
	zap = 20.0 * Ship.energy;
	Game.deaths += Ship.crew;
	for (i = 0; i < Etc.nkling; )
	{
		if (Etc.klingon[i].power * Etc.klingon[i].dist <= zap)
			killk(Etc.klingon[i].x, Etc.klingon[i].y);
		else
			i++;
	}
	/* if we didn't kill the last Klingon (detected by killk), */
	/* then we lose.... */
	lose(L_DSTRCT);
}