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battlestar.c revision 1.13 
      1 /*	$NetBSD: battlestar.c,v 1.13 2003/08/07 09:37:00 agc 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\n\
     35 	The Regents of the University of California.  All rights reserved.\n");
     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 1.13 2003/08/07 09:37:00 agc 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 __P((int, char *[]));
     56 
     57 int
     58 main(argc, argv)
     59 	int     argc;
     60 	char  **argv;
     61 {
     62 	char    mainbuf[LINELENGTH];
     63 	char   *next;
     64 
     65 	/* Open the score file then revoke setgid privileges */
     66 	open_score_file();
     67 	setgid(getgid());
     68 
     69 	if (argc < 2)
     70 		initialize(NULL);
     71 	else if (strcmp(argv[1], "-r") == 0)
     72 		initialize((argc > 2) ? argv[2] : DEFAULT_SAVE_FILE);
     73 	else
     74 		initialize(argv[1]);
     75 start:
     76 	news();
     77 	if (beenthere[position] <= ROOMDESC)
     78 		beenthere[position]++;
     79 	if (notes[LAUNCHED])
     80 		crash();	/* decrements fuel & crash */
     81 	if (matchlight) {
     82 		puts("Your match splutters out.");
     83 		matchlight = 0;
     84 	}
     85 	if (!notes[CANTSEE] || testbit(inven, LAMPON) ||
     86 	    testbit(location[position].objects, LAMPON)) {
     87 		writedes();
     88 		printobjs();
     89 	} else
     90 		puts("It's too dark to see anything in here!");
     91 	whichway(location[position]);
     92 run:
     93 	next = getcom(mainbuf, sizeof mainbuf, ">-: ",
     94 	    "Please type in something.");
     95 	for (wordcount = 0; next && wordcount < NWORD - 1; wordcount++)
     96 		next = getword(next, words[wordcount], -1);
     97 	parse();
     98 	switch (cypher()) {
     99 	case -1:
    100 		goto run;
    101 	case 0:
    102 		goto start;
    103 	default:
    104 		errx(1, "bad return from cypher(): please submit a bug report");
    105 	}
    106 }
    107