xref: /netbsd/games/battlestar/battlestar.c (revision bf9ec67e)
1 /*	$NetBSD: battlestar.c,v 1.12 2000/09/21 17:44:34 jsm 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. All advertising materials mentioning features or use of this software
16  *    must display the following acknowledgement:
17  *	This product includes software developed by the University of
18  *	California, Berkeley and its contributors.
19  * 4. Neither the name of the University nor the names of its contributors
20  *    may be used to endorse or promote products derived from this software
21  *    without specific prior written permission.
22  *
23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33  * SUCH DAMAGE.
34  */
35 
36 #include <sys/cdefs.h>
37 #ifndef lint
38 __COPYRIGHT("@(#) Copyright (c) 1983, 1993\n\
39 	The Regents of the University of California.  All rights reserved.\n");
40 #endif				/* not lint */
41 
42 #ifndef lint
43 #if 0
44 static char sccsid[] = "@(#)battlestar.c	8.2 (Berkeley) 4/28/95";
45 #else
46 __RCSID("$NetBSD: battlestar.c,v 1.12 2000/09/21 17:44:34 jsm Exp $");
47 #endif
48 #endif				/* not lint */
49 
50 /*
51  * Battlestar - a stellar-tropical adventure game
52  *
53  * Originally written by His Lordship, Admiral David W. Horatio Riggle,
54  * on the Cory PDP-11/70, University of California, Berkeley.
55  */
56 
57 #include "extern.h"
58 
59 int main __P((int, char *[]));
60 
61 int
62 main(argc, argv)
63 	int     argc;
64 	char  **argv;
65 {
66 	char    mainbuf[LINELENGTH];
67 	char   *next;
68 
69 	/* Open the score file then revoke setgid privileges */
70 	open_score_file();
71 	setgid(getgid());
72 
73 	if (argc < 2)
74 		initialize(NULL);
75 	else if (strcmp(argv[1], "-r") == 0)
76 		initialize((argc > 2) ? argv[2] : DEFAULT_SAVE_FILE);
77 	else
78 		initialize(argv[1]);
79 start:
80 	news();
81 	if (beenthere[position] <= ROOMDESC)
82 		beenthere[position]++;
83 	if (notes[LAUNCHED])
84 		crash();	/* decrements fuel & crash */
85 	if (matchlight) {
86 		puts("Your match splutters out.");
87 		matchlight = 0;
88 	}
89 	if (!notes[CANTSEE] || testbit(inven, LAMPON) ||
90 	    testbit(location[position].objects, LAMPON)) {
91 		writedes();
92 		printobjs();
93 	} else
94 		puts("It's too dark to see anything in here!");
95 	whichway(location[position]);
96 run:
97 	next = getcom(mainbuf, sizeof mainbuf, ">-: ",
98 	    "Please type in something.");
99 	for (wordcount = 0; next && wordcount < NWORD - 1; wordcount++)
100 		next = getword(next, words[wordcount], -1);
101 	parse();
102 	switch (cypher()) {
103 	case -1:
104 		goto run;
105 	case 0:
106 		goto start;
107 	default:
108 		errx(1, "bad return from cypher(): please submit a bug report");
109 	}
110 }
111