games/adventure/wizard.c

   1 /*-
   2  * Copyright (c) 1991, 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * The game adventure was originally written in Fortran by Will Crowther
   6  * and Don Woods.  It was later translated to C and enhanced by Jim
   7  * Gillogly.  This code is derived from software contributed to Berkeley
   8  * by Jim Gillogly at The Rand Corporation.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  * 3. All advertising materials mentioning features or use of this software
  19  *    must display the following acknowledgement:
  20  *      This product includes software developed by the University of
  21  *      California, Berkeley and its contributors.
  22  * 4. Neither the name of the University nor the names of its contributors
  23  *    may be used to endorse or promote products derived from this software
  24  *    without specific prior written permission.
  25  *
  26  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  27  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  28  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  29  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  30  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  31  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  32  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  33  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  34  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  35  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  36  * SUCH DAMAGE.
  37  *
  38  * @(#)wizard.c 8.1 (Berkeley) 6/2/93
  39  * $FreeBSD: src/games/adventure/wizard.c,v 1.10.2.1 2001/03/05 11:43:11 kris Exp $
  40  * $DragonFly: src/games/adventure/wizard.c,v 1.3 2007/04/18 18:32:12 swildner Exp $
  41  */
  42
  43 /*      Re-coding of advent in C: privileged operations                 */
  44
  45 #include <sys/types.h>
  46 #include <stdio.h>
  47 #include <stdlib.h>
  48 #include <string.h>
  49 #include <time.h>
  50 #include <sys/cdefs.h>
  51 #include "hdr.h"
  52
  53 static int wizard (void);
  54
  55 void
  56 datime(int *d, int *t)
  57 {       struct tm *tptr;
  58         time_t tvec;
  59
  60         time(&tvec);
  61         tptr=localtime(&tvec);
  62         /* day since 1977 */
  63         *d = (tptr->tm_yday + 365 * (tptr->tm_year - 77)
  64                 + (tptr->tm_year - 77) / 4 - (tptr->tm_year - 1) / 100
  65                 + (tptr->tm_year + 299) / 400);
  66         /* bug: this will overflow in the year 2066 AD (with 16 bit int) */
  67         /* it will be attributed to Wm the C's millenial celebration    */
  68         /* and minutes since midnite */
  69         *t=tptr->tm_hour*60+tptr->tm_min;
  70 }
  71
  72
  73 char magic[6];
  74
  75 void
  76 poof(void)
  77 {
  78         strcpy(magic, DECR(d,w,a,r,f));
  79         latncy = 45;
  80 }
  81
  82 int
  83 Start(void)
  84 {       int d,t,delay;
  85
  86         datime(&d,&t);
  87         delay=(d-saved)*1440+(t-savet); /* good for about a month     */
  88
  89         if (delay >= latncy)
  90         {       saved = -1;
  91                 return(FALSE);
  92         }
  93         printf("This adventure was suspended a mere %d minute%s ago.",
  94                 delay, delay == 1? "" : "s");
  95         if (delay <= latncy/3)
  96         {       mspeak(2);
  97                 exit(0);
  98         }
  99         mspeak(8);
 100         if (!wizard())
 101         {       mspeak(9);
 102                 exit(0);
 103         }
 104         saved = -1;
 105         return(FALSE);
 106 }
 107
 108 /* not as complex as advent/10 (for now)        */
 109 static int
 110 wizard(void)
 111 {
 112         char *word,*x;
 113         if (!yesm(16,0,7)) return(FALSE);
 114         mspeak(17);
 115         getin(&word,&x);
 116         if (strncmp(word,magic,5))
 117         {       mspeak(20);
 118                 return(FALSE);
 119         }
 120         mspeak(19);
 121         return(TRUE);
 122 }
 123
 124 void
 125 ciao(void)
 126 {       char *c;
 127         char fname[80];
 128
 129         printf("What would you like to call the saved version?\n");
 130         /* XXX - should use fgetln to avoid arbitrary limit */
 131         for (c = fname; c < fname + sizeof fname - 1; c++) {
 132                 int ch;
 133                 ch = getchar();
 134                 if (ch == '\n' || ch == EOF)
 135                         break;
 136                 *c = ch;
 137         }
 138         *c=0;
 139         if (save(fname) != 0) return;           /* Save failed */
 140         printf("To resume, say \"adventure %s\".\n", fname);
 141         printf("\"With these rooms I might now have been familiarly acquainted.\"\n");
 142         exit(0);
 143 }
 144
 145
 146 int
 147 ran(int range)
 148 {
 149         int i;
 150
 151         i = random() % range;
 152         return(i);
 153 }