/*-
 * Copyright (c) 1991, 1993
 *  The Regents of the University of California.  All rights reserved.
 *
 * The game adventure was originally written in Fortran by Will Crowther
 * and Don Woods.  It was later translated to C and enhanced by Jim
 * Gillogly.  This code is derived from software contributed to Berkeley
 * by Jim Gillogly at The Rand Corporation.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *  This product includes software developed by the University of
 *  California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#ifndef lint
#if 0
static char sccsid[] = "@(#)wizard.c	8.1 (Berkeley) 6/2/93";
#endif
static const char rcsid[] __attribute__((unused)) =
    "$FreeBSD: src/games/adventure/wizard.c,v 1.10.2.1 2001/03/05 11:43:11 kris Exp $";
#endif /* not lint */

/*      Re-coding of advent in C: privileged operations                 */

#include <sys/types.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <sys/cdefs.h>
#include "hdr.h"

static int wizard(void);

void
datime(d, t)
int *d, *t;
{
    struct tm tstr;
    struct tm * tptr = &tstr;
    time_t tvec;

    time(&tvec);
    tptr = localtime_r(&tvec, tptr);
    /* day since 1977 */
    *d = (tptr->tm_yday + 365 * (tptr->tm_year - 77)
          + (tptr->tm_year - 77) / 4 - (tptr->tm_year - 1) / 100
          + (tptr->tm_year + 299) / 400);
    /* bug: this will overflow in the year 2066 AD (with 16 bit int) */
    /* it will be attributed to Wm the C's millenial celebration    */
    /* and minutes since midnite */
    *t = tptr->tm_hour * 60 + tptr->tm_min;
}


char magic[6];

void
poof() {
    strcpy(magic, DECR(d, w, a, r, f));
    latncy = 45;
}

int
Start() {
    int d, t, delay;

    datime(&d, &t);
    delay = (d - saved) * 1440 + (t - savet); /* good for about a month     */

    if(delay >= latncy) {
        saved = -1;
        return(FALSE);
    }

    printf("This adventure was suspended a mere %d minute%s ago.",
           delay, delay == 1 ? "" : "s");

    if(delay <= latncy / 3) {
        mspeak(2);
        exit(0);
    }

    mspeak(8);

    if(!wizard()) {
        mspeak(9);
        exit(0);
    }

    saved = -1;
    return(FALSE);
}

static int
wizard() {              /* not as complex as advent/10 (for now)        */
    char *word, *x;

    if(!yesm(16, 0, 7)) return(FALSE);

    mspeak(17);
    getin(&word, &x);

    if(strncmp(word, magic, 5)) {
        mspeak(20);
        return(FALSE);
    }

    mspeak(19);
    return(TRUE);
}

void
ciao() {
    char *c;
    char fname[80];

    printf("What would you like to call the saved version?\n");

    /* XXX - should use fgetln to avoid arbitrary limit */
    for(c = fname; c < fname + sizeof fname - 1; c++) {
        int ch;
        ch = getchar();

        if(ch == '\n' || ch == EOF)
            break;

        *c = ch;
    }

    *c = 0;

    if(save(fname) != 0) return;            /* Save failed */

    printf("To resume, say \"adventure %s\".\n", fname);
    printf("\"With these rooms I might now have been familiarly acquainted.\"\n");
    exit(0);
}


int
ran(range)
int range;
{
    int i;

    i = random() % range;
    return(i);
}
