xref: /netbsd-src/games/trek/destruct.c (revision 50b862e21c853cbd36b7a06588389f4c21b9a079)
1 /*	$NetBSD: destruct.c,v 1.10 2009/05/24 21:44:56 dholland Exp $	*/
2 
3 /*
4  * Copyright (c) 1980, 1993
5  *	The Regents of the University of California.  All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  * 3. Neither the name of the University nor the names of its contributors
16  *    may be used to endorse or promote products derived from this software
17  *    without specific prior written permission.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29  * SUCH DAMAGE.
30  */
31 
32 #include <sys/cdefs.h>
33 #ifndef lint
34 #if 0
35 static char sccsid[] = "@(#)destruct.c	8.1 (Berkeley) 5/31/93";
36 #else
37 __RCSID("$NetBSD: destruct.c,v 1.10 2009/05/24 21:44:56 dholland Exp $");
38 #endif
39 #endif /* not lint */
40 
41 #include <stdio.h>
42 #include <string.h>
43 #include <unistd.h>
44 #include "trek.h"
45 #include "getpar.h"
46 
47 /*
48 **  Self Destruct Sequence
49 **
50 **	The computer starts up the self destruct sequence.  Obviously,
51 **	if the computer is out nothing can happen.  You get a countdown
52 **	and a request for password.  This must match the password that
53 **	you entered at the start of the game.
54 **
55 **	You get to destroy things when you blow up; hence, it is
56 **	possible to win the game by destructing if you take the last
57 **	Klingon with you.
58 **
59 **	By the way, the \032 in the message is a ^Z, which is because
60 **	the terminal in my office is an ADM-3, which uses that char-
61 **	acter to clear the screen.  I also stick in a \014 (form feed)
62 **	because that clears some other screens.
63 **
64 **	Uses trace flag 41
65 */
66 
67 /*ARGSUSED*/
68 void
destruct(int v __unused)69 destruct(int v __unused)
70 {
71 	char		checkpass[15];
72 	int	i, j;
73 	double		zap;
74 
75 	if (damaged(COMPUTER)) {
76 		out(COMPUTER);
77 		return;
78 	}
79 	printf("\n\07 --- WORKING ---\07\n");
80 	sleep(3);
81 	/* output the count 10 9 8 7 6 */
82 	for (i = 10; i > 5; i--) {
83 		for (j = 10;  j > i; j--)
84 			printf("   ");
85 		printf("%d\n", i);
86 		sleep(1);
87 	}
88 	/* check for password on new line only */
89 	skiptonl(0);
90 	getstrpar("Enter password verification", checkpass, 14, 0);
91 	sleep(2);
92 	if (strcmp(checkpass, Game.passwd) != 0) {
93 		printf("Self destruct sequence aborted\n");
94 		return;
95 	}
96 	printf("Password verified; self destruct sequence continues:\n");
97 	sleep(2);
98 	/* output count 5 4 3 2 1 0 */
99 	for (i = 5; i >= 0; i--) {
100 		sleep(1);
101 		for (j = 5; j > i; j--)
102 			printf("   ");
103 		printf("%d\n", i);
104 	}
105 	sleep(2);
106 	printf("\032\014***** %s destroyed *****\n", Ship.shipname);
107 	Game.killed = 1;
108 	/* let's see what we can blow up!!!! */
109 	zap = 20.0 * Ship.energy;
110 	Game.deaths += Ship.crew;
111 	for (i = 0; i < Etc.nkling; ) {
112 		if (Etc.klingon[i].power * Etc.klingon[i].dist <= zap)
113 			killk(Etc.klingon[i].x, Etc.klingon[i].y);
114 		else
115 			i++;
116 	}
117 	/* if we didn't kill the last Klingon (detected by killk), */
118 	/* then we lose.... */
119 	lose(L_DSTRCT);
120 }
121