xref: /netbsd-src/games/battlestar/battlestar.c (revision 2fe2731d3f09bdee8be0c69d144b60d0da6f22d5)
1 /*	$NetBSD: battlestar.c,v 1.16 2008/07/20 01:03:21 lukem Exp $	*/
2 
3 /*
4  * Copyright (c) 1983, 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 __COPYRIGHT("@(#) Copyright (c) 1983, 1993\
35  The Regents of the University of California.  All rights reserved.");
36 #endif				/* not lint */
37 
38 #ifndef lint
39 #if 0
40 static char sccsid[] = "@(#)battlestar.c	8.2 (Berkeley) 4/28/95";
41 #else
42 __RCSID("$NetBSD: battlestar.c,v 1.16 2008/07/20 01:03:21 lukem Exp $");
43 #endif
44 #endif				/* not lint */
45 
46 /*
47  * Battlestar - a stellar-tropical adventure game
48  *
49  * Originally written by His Lordship, Admiral David W. Horatio Riggle,
50  * on the Cory PDP-11/70, University of California, Berkeley.
51  */
52 
53 #include "extern.h"
54 
55 int
main(int argc,char ** argv)56 main(int argc, char **argv)
57 {
58 	char    mainbuf[LINELENGTH];
59 	char   *next;
60 
61 	/* Open the score file then revoke setgid privileges */
62 	open_score_file();
63 	setgid(getgid());
64 
65 	if (argc < 2)
66 		initialize(NULL);
67 	else if (strcmp(argv[1], "-r") == 0)
68 		initialize((argc > 2) ? argv[2] : DEFAULT_SAVE_FILE);
69 	else
70 		initialize(argv[1]);
71 start:
72 	news();
73 	if (beenthere[position] <= ROOMDESC)
74 		beenthere[position]++;
75 	if (notes[LAUNCHED])
76 		crash();	/* decrements fuel & crash */
77 	if (matchlight) {
78 		puts("Your match splutters out.");
79 		matchlight = 0;
80 	}
81 	if (!notes[CANTSEE] || testbit(inven, LAMPON) ||
82 	    testbit(location[position].objects, LAMPON)) {
83 		writedes();
84 		printobjs();
85 	} else
86 		puts("It's too dark to see anything in here!");
87 	whichway(location[position]);
88 run:
89 	next = getcom(mainbuf, sizeof mainbuf, ">-: ",
90 	    "Please type in something.");
91 	for (wordcount = 0; next && wordcount < NWORD - 1; wordcount++)
92 		next = getword(next, words[wordcount], -1);
93 	parse();
94 	switch (cypher()) {
95 	case -1:
96 		goto run;
97 	case 0:
98 		goto start;
99 	default:
100 		errx(1, "bad return from cypher(): please submit a bug report");
101 	}
102 }
103