battlestar/battlestar.c

   1 /*      $NetBSD: battlestar.c,v 1.11 2000/09/08 17:22:01 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 1.11 2000/09/08 17:22:01 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 < 20; 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 }