root/games/hack/hack.bones.c
/*      $NetBSD: hack.bones.c,v 1.9 2011/07/20 07:04:30 dholland Exp $  */

/*
 * Copyright (c) 1985, Stichting Centrum voor Wiskunde en Informatica,
 * Amsterdam
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 * - Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimer.
 *
 * - 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.
 *
 * - Neither the name of the Stichting Centrum voor Wiskunde en
 * Informatica, 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 COPYRIGHT HOLDERS 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 COPYRIGHT OWNER
 * 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.
 */

/*
 * Copyright (c) 1982 Jay Fenlason <hack@gnu.org>
 * All rights reserved.
 *
 * 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. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED ``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 AUTHOR 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.
 */

#include <sys/cdefs.h>
#ifndef lint
__RCSID("$NetBSD: hack.bones.c,v 1.9 2011/07/20 07:04:30 dholland Exp $");
#endif                          /* not lint */

#include <fcntl.h>
#include <unistd.h>
#include "hack.h"
#include "extern.h"

static char bones[] = "bones_xx";

/* save bones and possessions of a deceased adventurer */
void
savebones(void)
{
        int fd;
        struct obj *otmp;
        struct trap *ttmp;
        struct monst *mtmp;

        if (dlevel <= 0 || dlevel > MAXLEVEL)
                return;
        if (!rn2(1 + dlevel / 2))
                return;         /* not so many ghosts on low levels */
        bones[6] = '0' + (dlevel / 10);
        bones[7] = '0' + (dlevel % 10);
        if ((fd = open(bones, O_RDONLY)) >= 0) {
                (void) close(fd);
                return;
        }
        /* drop everything; the corpse's possessions are usually cursed */
        otmp = invent;
        while (otmp) {
                otmp->ox = u.ux;
                otmp->oy = u.uy;
                otmp->age = 0;  /* very long ago */
                otmp->owornmask = 0;
                if (rn2(5))
                        otmp->cursed = 1;
                if (!otmp->nobj) {
                        otmp->nobj = fobj;
                        fobj = invent;
                        invent = 0;     /* superfluous */
                        break;
                }
                otmp = otmp->nobj;
        }
        if (!(mtmp = makemon(PM_GHOST, u.ux, u.uy)))
                return;
        mtmp->mx = u.ux;
        mtmp->my = u.uy;
        mtmp->msleep = 1;
        (void) strcpy((char *) mtmp->mextra, plname);
        mkgold(somegold() + d(dlevel, 30), u.ux, u.uy);
        for (mtmp = fmon; mtmp; mtmp = mtmp->nmon) {
                mtmp->m_id = 0;
                if (mtmp->mtame) {
                        mtmp->mtame = 0;
                        mtmp->mpeaceful = 0;
                }
                mtmp->mlstmv = 0;
                if (mtmp->mdispl)
                        unpmon(mtmp);
        }
        for (ttmp = ftrap; ttmp; ttmp = ttmp->ntrap)
                ttmp->tseen = 0;
        for (otmp = fobj; otmp; otmp = otmp->nobj) {
                otmp->o_id = 0;
                /* otmp->o_cnt_id = 0; - superfluous */
                otmp->onamelth = 0;
                otmp->known = 0;
                otmp->invlet = 0;
                if (otmp->olet == AMULET_SYM && !otmp->spe) {
                        otmp->spe = -1; /* no longer the actual amulet */
                        otmp->cursed = 1;       /* flag as gotten from a
                                                 * ghost */
                }
        }
        if ((fd = creat(bones, FMASK)) < 0)
                return;
        savelev(fd, dlevel);
        (void) close(fd);
}

int
getbones(void)
{
        int fd, x, y, ok;

        if (rn2(3))
                return (0);     /* only once in three times do we find bones */
        bones[6] = '0' + dlevel / 10;
        bones[7] = '0' + dlevel % 10;
        if ((fd = open(bones, O_RDONLY)) < 0)
                return (0);
        if ((ok = uptodate(fd)) != 0) {
                getlev(fd, 0, dlevel);
                for (x = 0; x < COLNO; x++)
                        for (y = 0; y < ROWNO; y++)
                                levl[x][y].seen = levl[x][y].new = 0;
        }
        (void) close(fd);
#ifdef WIZARD
        if (!wizard)            /* duvel!frans: don't remove bones while
                                 * debugging */
#endif  /* WiZARD */
                if (unlink(bones) < 0) {
                        pline("Cannot unlink %s .", bones);
                        return (0);
                }
        return (ok);
}