/* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
/* hack.bones.c - version 1.0.3 */
/* $FreeBSD: src/games/hack/hack.bones.c,v 1.4 1999/11/16 10:26:35 marcel Exp $ */
/* $DragonFly: src/games/hack/hack.bones.c,v 1.4 2006/08/21 19:45:32 pavalos Exp $ */

#include "hack.h"

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))	/* not so many ghosts on low levels */
		return;
	bones[6] = '0' + (dlevel / 10);
	bones[7] = '0' + (dlevel % 10);
	if ((fd = open(bones, O_RDONLY)) >= 0) {
		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;
	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);
	close(fd);
}

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

	if (rn2(3))	/* only once in three times do we find bones */
		return (0);
	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;
	}
	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);
}