games/battlestar/battlestar.c

   1 /*
   2  * Copyright (c) 1983, 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. All advertising materials mentioning features or use of this software
  14  *    must display the following acknowledgement:
  15  *      This product includes software developed by the University of
  16  *      California, Berkeley and its contributors.
  17  * 4. Neither the name of the University nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  *
  33  * @(#) Copyright (c) 1983, 1993 The Regents of the University of California.  All rights reserved.
  34  * @(#)battlestar.c     8.1 (Berkeley) 5/31/93
  35  * $FreeBSD: src/games/battlestar/battlestar.c,v 1.6.2.1 2001/03/05 11:45:35 kris Exp $
  36  * $DragonFly: src/games/battlestar/battlestar.c,v 1.3 2006/08/08 18:47:20 pavalos Exp $
  37  */
  38
  39 /*
  40  * Battlestar - a stellar-tropical adventure game
  41  *
  42  * Originally written by His Lordship, Admiral David W. Horatio Riggle,
  43  * on the Cory PDP-11/70, University of California, Berkeley.
  44  */
  45
  46 #include "externs.h"
  47
  48 int
  49 main(int argc, char **argv)
  50 {
  51         char mainbuf[LINELENGTH];
  52         char *next;
  53
  54         open_score_file();
  55
  56         /* revoke privs. */
  57         setgid(getgid());
  58
  59         initialize(argc < 2 || strcmp(argv[1], "-r"));
  60 start:
  61         news();
  62         beenthere[position]++;
  63         if (notes[LAUNCHED])
  64                 crash();                /* decrements fuel & crash */
  65         if (matchlight) {
  66                 puts("Your match splutters out.");
  67                 matchlight = 0;
  68         }
  69         if (!notes[CANTSEE] || testbit(inven,LAMPON) ||
  70             testbit(location[position].objects, LAMPON)) {
  71                 writedes();
  72                 printobjs();
  73         } else
  74                 puts("It's too dark to see anything in here!");
  75         whichway(location[position]);
  76 run:
  77         next = getcom(mainbuf, sizeof mainbuf, ">-: ",
  78                 "Please type in something.");
  79         for (wordcount = 0; next && wordcount < 20; wordcount++)
  80                 next = getword(next, words[wordcount], -1);
  81         parse();
  82         switch (cypher()) {
  83                 case -1:
  84                         goto run;
  85                 case 0:
  86                         goto start;
  87                 default:
  88                         exit(1); /* Shouldn't happen */
  89         }
  90         return(1);
  91 }