1/*	$OpenBSD: destruct.c,v 1.9 2016/01/07 14:37:51 mestre Exp $	*/
2/*	$NetBSD: destruct.c,v 1.3 1995/04/22 10:58:44 cgd Exp $	*/
3
4/*
5 * Copyright (c) 1980, 1993
6 *	The Regents of the University of California.  All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of the University nor the names of its contributors
17 *    may be used to endorse or promote products derived from this software
18 *    without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 */
32
33#include <stdio.h>
34#include <string.h>
35#include <unistd.h>
36
37#include "getpar.h"
38#include "trek.h"
39
40/*
41**  Self Destruct Sequence
42**
43**	The computer starts up the self destruct sequence.  Obviously,
44**	if the computer is out nothing can happen.  You get a countdown
45**	and a request for password.  This must match the password that
46**	you entered at the start of the game.
47**
48**	You get to destroy things when you blow up; hence, it is
49**	possible to win the game by destructing if you take the last
50**	Klingon with you.
51**
52**	There used to be a \032 in the message (^Z), which is because
53**	the terminal in Allman's office was an ADM-3, which uses that char-
54**	acter to clear the screen.  There was also a \014 (form feed)
55**	because that clears some other screens.  Now there is nothing.
56**	Presumably the most general screen clear today would be
57**	ESC [2J
58*/
59
60void
61destruct(int v)
62{
63	char	checkpass[15];
64	int	i, j;
65	double	zap;
66
67	if (damaged(COMPUTER))
68	{
69		out(COMPUTER);
70		return;
71	}
72	printf("\n\07 --- WORKING ---\07\n");
73	sleep(3);
74	/* output the count 10 9 8 7 6 */
75	for (i = 10; i > 5; i--)
76	{
77		for (j = 10;  j > i; j--)
78			printf("   ");
79		printf("%d\n", i);
80		sleep(1);
81	}
82	/* check for password on new line only */
83	skiptonl(0);
84	getstrpar("Enter password verification", checkpass, 14, 0);
85	sleep(2);
86	if (strcmp(checkpass, Game.passwd) != 0)
87	{
88		printf("Self destruct sequence aborted\n");
89		return;
90	}
91	printf("Password verified; self destruct sequence continues:\n");
92	sleep(2);
93	/* output count 5 4 3 2 1 0 */
94	for (i = 5; i >= 0; i--)
95	{
96		sleep(1);
97		for (j = 5; j > i; j--)
98			printf("   ");
99		printf("%d\n", i);
100	}
101	sleep(2);
102	/* printf("\032\014***** %s destroyed *****\n", Ship.shipname); */
103	printf("\n\n\n\n***** %s destroyed *****\n", Ship.shipname);
104	Game.killed = 1;
105	/* let's see what we can blow up!!!! */
106	zap = 20.0 * Ship.energy;
107	Game.deaths += Ship.crew;
108	for (i = 0; i < Etc.nkling; )
109	{
110		if (Etc.klingon[i].power * Etc.klingon[i].dist <= zap)
111			killk(Etc.klingon[i].x, Etc.klingon[i].y);
112		else
113			i++;
114	}
115	/* if we didn't kill the last Klingon (detected by killk), */
116	/* then we lose.... */
117	lose(L_DSTRCT);
118}
119