xref: /dragonfly/games/trek/destruct.c (revision cd1c6085)
1 /*-
2  * Copyright (c) 1980, 1993
3  *	The Regents of the University of California.  All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 3. Neither the name of the University nor the names of its contributors
14  *    may be used to endorse or promote products derived from this software
15  *    without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  *
29  * @(#)destruct.c	8.1 (Berkeley) 5/31/93
30  * $FreeBSD: src/games/trek/destruct.c,v 1.4 1999/11/30 03:49:46 billf Exp $
31  * $DragonFly: src/games/trek/destruct.c,v 1.3 2006/09/07 21:19:44 pavalos Exp $
32  */
33 
34 #include "getpar.h"
35 #include "trek.h"
36 
37 /*
38 **  Self Destruct Sequence
39 **
40 **	The computer starts up the self destruct sequence.  Obviously,
41 **	if the computer is out nothing can happen.  You get a countdown
42 **	and a request for password.  This must match the password that
43 **	you entered at the start of the game.
44 **
45 **	You get to destroy things when you blow up; hence, it is
46 **	possible to win the game by destructing if you take the last
47 **	Klingon with you.
48 **
49 **	By the way, the \032 in the message is a ^Z, which is because
50 **	the terminal in my office is an ADM-3, which uses that char-
51 **	acter to clear the screen.  I also stick in a \014 (form feed)
52 **	because that clears some other screens.
53 **
54 **	Uses trace flag 41
55 */
56 
57 void
58 destruct(int v __unused)
59 {
60 	char		checkpass[15];
61 	int	i, j;
62 	double		zap;
63 
64 	if (damaged(COMPUTER)) {
65 		out(COMPUTER);
66 		return;
67 	}
68 	printf("\n\07 --- WORKING ---\07\n");
69 	sleep(3);
70 	/* output the count 10 9 8 7 6 */
71 	for (i = 10; i > 5; i--) {
72 		for (j = 10;  j > i; j--)
73 			printf("   ");
74 		printf("%d\n", i);
75 		sleep(1);
76 	}
77 	/* check for password on new line only */
78 	skiptonl(0);
79 	getstrpar("Enter password verification", checkpass, 14, 0);
80 	sleep(2);
81 	if (!sequal(checkpass, Game.passwd)) {
82 		printf("Self destruct sequence aborted\n");
83 		return;
84 	}
85 	printf("Password verified; self destruct sequence continues:\n");
86 	sleep(2);
87 	/* output count 5 4 3 2 1 0 */
88 	for (i = 5; i >= 0; i--) {
89 		sleep(1);
90 		for (j = 5; j > i; j--)
91 			printf("   ");
92 		printf("%d\n", i);
93 	}
94 	sleep(2);
95 	printf("\032\014***** %s destroyed *****\n", Ship.shipname);
96 	Game.killed = 1;
97 	/* let's see what we can blow up!!!! */
98 	zap = 20.0 * Ship.energy;
99 	Game.deaths += Ship.crew;
100 	for (i = 0; i < Etc.nkling; ) {
101 		if (Etc.klingon[i].power * Etc.klingon[i].dist <= zap)
102 			killk(Etc.klingon[i].x, Etc.klingon[i].y);
103 		else
104 			i++;
105 	}
106 	/* if we didn't kill the last Klingon (detected by killk), */
107 	/* then we lose.... */
108 	lose(L_DSTRCT);
109 }
110