adventure/wizard.c

   1 /*      $NetBSD: wizard.c,v 1.16 2012/10/12 15:41:10 dholland Exp $     */
   2
   3 /*-
   4  * Copyright (c) 1991, 1993
   5  *      The Regents of the University of California.  All rights reserved.
   6  *
   7  * The game adventure was originally written in Fortran by Will Crowther
   8  * and Don Woods.  It was later translated to C and enhanced by Jim
   9  * Gillogly.  This code is derived from software contributed to Berkeley
  10  * by Jim Gillogly at The Rand Corporation.
  11  *
  12  * Redistribution and use in source and binary forms, with or without
  13  * modification, are permitted provided that the following conditions
  14  * are met:
  15  * 1. Redistributions of source code must retain the above copyright
  16  *    notice, this list of conditions and the following disclaimer.
  17  * 2. Redistributions in binary form must reproduce the above copyright
  18  *    notice, this list of conditions and the following disclaimer in the
  19  *    documentation and/or other materials provided with the distribution.
  20  * 3. Neither the name of the University nor the names of its contributors
  21  *    may be used to endorse or promote products derived from this software
  22  *    without specific prior written permission.
  23  *
  24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  34  * SUCH DAMAGE.
  35  */
  36
  37 #include <sys/cdefs.h>
  38 #ifndef lint
  39 #if 0
  40 static char sccsid[] = "@(#)wizard.c    8.1 (Berkeley) 6/2/93";
  41 #else
  42 __RCSID("$NetBSD: wizard.c,v 1.16 2012/10/12 15:41:10 dholland Exp $");
  43 #endif
  44 #endif                          /* not lint */
  45
  46 /*      Re-coding of advent in C: privileged operations                 */
  47
  48 #include <stdio.h>
  49 #include <string.h>
  50 #include <stdlib.h>
  51 #include <time.h>
  52 #include "hdr.h"
  53 #include "extern.h"
  54
  55 static int wizard(void);
  56
  57 void
  58 datime(int *d, int *t)
  59 {
  60         time_t  tvec;
  61         struct tm *tptr;
  62
  63         time(&tvec);
  64         tptr = localtime(&tvec);
  65         /* day since 1977  (mod leap)   */
  66         *d = (tptr->tm_yday + 365 * (tptr->tm_year - 77)
  67              + (tptr->tm_year - 77) / 4 - (tptr->tm_year - 1) / 100
  68              + (tptr->tm_year + 299) / 400);
  69         /* bug: this will overflow in the year 2066 AD (with 16 bit int) */
  70         /* it will be attributed to Wm the C's millenial celebration    */
  71         /* and minutes since midnite */
  72         *t = tptr->tm_hour * 60 + tptr->tm_min;
  73 }                               /* pretty painless              */
  74
  75
  76 static char magic[6];
  77
  78 void
  79 poof(void)
  80 {
  81         strcpy(magic, DECR('d', 'w', 'a', 'r', 'f'));
  82         latency = 45;
  83 }
  84
  85 int
  86 Start(void)
  87 {
  88         int     d, t, delay;
  89
  90         datime(&d, &t);
  91         delay = (d - saveday) * 1440 + (t - savet);     /* good for about a
  92                                                          * month     */
  93
  94         if (delay >= latency) {
  95                 saved = -1;
  96                 return (FALSE);
  97         }
  98         printf("This adventure was suspended a mere %d minute%s ago.",
  99             delay, delay == 1 ? "" : "s");
 100         if (delay <= latency / 3) {
 101                 mspeak(2);
 102                 exit(0);
 103         }
 104         mspeak(8);
 105         if (!wizard()) {
 106                 mspeak(9);
 107                 exit(0);
 108         }
 109         saved = -1;
 110         return (FALSE);
 111 }
 112
 113 /* not as complex as advent/10 (for now)        */
 114 static int
 115 wizard(void)
 116 {
 117         char   *word, *x;
 118         if (!yesm(16, 0, 7))
 119                 return (FALSE);
 120         mspeak(17);
 121         getin(&word, &x);
 122         if (!weq(word, magic)) {
 123                 mspeak(20);
 124                 return (FALSE);
 125         }
 126         mspeak(19);
 127         return (TRUE);
 128 }
 129
 130 void
 131 ciao(void)
 132 {
 133         char fname[80];
 134         size_t pos;
 135
 136         printf("What would you like to call the saved version?\n");
 137         /* XXX - should use fgetln to avoid arbitrary limit */
 138         for (pos = 0; pos < sizeof(fname) - 1; pos++) {
 139                 int ch;
 140                 ch = getchar();
 141                 if (ch == '\n' || ch == EOF)
 142                         break;
 143                 fname[pos] = ch;
 144         }
 145         fname[pos] = '\0';
 146         if (save(fname) != 0)
 147                 return;         /* Save failed */
 148         printf("To resume, say \"adventure %s\".\n", fname);
 149         printf("\"With these rooms I might now have been familiarly ");
 150         printf("acquainted.\"\n");
 151         exit(0);
 152 }
 153
 154
 155 int
 156 ran(int range)
 157 {
 158         long    i;
 159
 160         i = rand() % range;
 161         return (i);
 162 }