xref: /dragonfly/games/adventure/wizard.c (revision 36a3d1d6)
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. Neither the name of the University nor the names of its contributors
19  *    may be used to endorse or promote products derived from this software
20  *    without specific prior written permission.
21  *
22  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32  * SUCH DAMAGE.
33  *
34  * @(#)wizard.c	8.1 (Berkeley) 6/2/93
35  * $FreeBSD: src/games/adventure/wizard.c,v 1.10.2.1 2001/03/05 11:43:11 kris Exp $
36  * $DragonFly: src/games/adventure/wizard.c,v 1.3 2007/04/18 18:32:12 swildner Exp $
37  */
38 
39 /* Re-coding of advent in C: privileged operations */
40 
41 #include <sys/types.h>
42 #include <stdio.h>
43 #include <stdlib.h>
44 #include <string.h>
45 #include <time.h>
46 #include <sys/cdefs.h>
47 #include "hdr.h"
48 
49 static int wizard(void);
50 
51 void
52 datime(int *d, int *t)
53 {
54 	struct tm *tptr;
55 	time_t tvec;
56 
57 	time(&tvec);
58 	tptr = localtime(&tvec);
59 	/* day since 1977 */
60 	*d = (tptr->tm_yday + 365 * (tptr->tm_year - 77)
61 	    + (tptr->tm_year - 77) / 4 - (tptr->tm_year - 1) / 100
62 	    + (tptr->tm_year + 299) / 400);
63 	/* bug: this will overflow in the year 2066 AD (with 16 bit int) */
64 	/* it will be attributed to Wm the C's millenial celebration */
65 	/* and minutes since midnite */
66 	*t = tptr->tm_hour * 60 + tptr->tm_min;
67 }
68 
69 char magic[6];
70 
71 void
72 poof(void)
73 {
74 	strcpy(magic, DECR(d, w, a, r, f));
75 	latncy = 45;
76 }
77 
78 int
79 Start(void)
80 {
81 	int d, t, delay;
82 
83 	datime(&d, &t);
84 	delay = (d - saved) * 1440 + (t - savet); /* good for about a month */
85 
86 	if (delay >= latncy) {
87 		saved = -1;
88 		return (FALSE);
89 	}
90 	printf("This adventure was suspended a mere %d minute%s ago.",
91 	    delay, delay == 1 ? "" : "s");
92 	if (delay <= latncy / 3) {
93 		mspeak(2);
94 		exit(0);
95 	}
96 	mspeak(8);
97 	if (!wizard()) {
98 		mspeak(9);
99 		exit(0);
100 	}
101 	saved = -1;
102 	return (FALSE);
103 }
104 
105 /* not as complex as advent/10 (for now) */
106 static int
107 wizard(void)
108 {
109 	char *word, *x;
110 
111 	if (!yesm(16, 0, 7))
112 		return (FALSE);
113 	mspeak(17);
114 	getin(&word, &x);
115 	if (strncmp(word, magic, 5)) {
116 		mspeak(20);
117 		return (FALSE);
118 	}
119 	mspeak(19);
120 	return (TRUE);
121 }
122 
123 void
124 ciao(void)
125 {
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)			/* Save failed */
140 		return;
141 	printf("To resume, say \"adventure %s\".\n", fname);
142 	printf("\"With these rooms I might now have been familiarly acquainted.\"\n");
143 	exit(0);
144 }
145 
146 int
147 ran(int range)
148 {
149 	int i;
150 
151 	i = random() % range;
152 	return (i);
153 }
154