Source:NetHack 3.6.0/src/bones.c

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/* NetHack 3.6	bones.c	$NHDT-Date: 1449269914 2015/12/04 22:58:34 $  $NHDT-Branch: NetHack-3.6.0 $:$NHDT-Revision: 1.66 $ */
/* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985,1993. */
/* NetHack may be freely redistributed.  See license for details. */

#include "hack.h"
#include "lev.h"

extern char bones[]; /* from files.c */
#ifdef MFLOPPY
extern long bytes_counted;
#endif

STATIC_DCL boolean FDECL(no_bones_level, (d_level *));
STATIC_DCL void FDECL(goodfruit, (int));
STATIC_DCL void FDECL(resetobjs, (struct obj *, BOOLEAN_P));
STATIC_DCL boolean FDECL(fixuporacle, (struct monst *));

STATIC_OVL boolean
no_bones_level(lev)
d_level *lev;
{
extern d_level save_dlevel; /* in do.c */
s_level *sptr;

if (ledger_no(&save_dlevel))
assign_level(lev, &save_dlevel);

return (boolean) (((sptr = Is_special(lev)) != 0 && !sptr->boneid)
|| !dungeons[lev->dnum].boneid
/* no bones on the last or multiway branch levels
in any dungeon (level 1 isn't multiway) */
|| Is_botlevel(lev)
|| (Is_branchlev(lev) && lev->dlevel > 1)
/* no bones in the invocation level */
|| (In_hell(lev)
&& lev->dlevel == dunlevs_in_dungeon(lev) - 1));
}

/* Call this function for each fruit object saved in the bones level: it marks
* that particular type of fruit as existing (the marker is that that type's
* ID is positive instead of negative).  This way, when we later save the
* chain of fruit types, we know to only save the types that exist.
*/
STATIC_OVL void
goodfruit(id)
int id;
{
register struct fruit *f;

for (f = ffruit; f; f = f->nextf) {
if (f->fid == -id) {
f->fid = id;
return;
}
}
}

STATIC_OVL void
resetobjs(ochain, restore)
struct obj *ochain;
boolean restore;
{
struct obj *otmp, *nobj;

for (otmp = ochain; otmp; otmp = nobj) {
nobj = otmp->nobj;
if (otmp->cobj)
resetobjs(otmp->cobj, restore);
if (otmp->in_use) {
obj_extract_self(otmp);
dealloc_obj(otmp);
continue;
}

if (restore) {
/* artifact bookkeeping needs to be done during
restore; other fixups are done while saving */
if (otmp->oartifact) {
if (exist_artifact(otmp->otyp, safe_oname(otmp))
|| is_quest_artifact(otmp)) {
/* prevent duplicate--revert to ordinary obj */
otmp->oartifact = 0;
if (has_oname(otmp))
free_oname(otmp);
} else {
artifact_exists(otmp, safe_oname(otmp), TRUE);
}
} else if (has_oname(otmp)) {
sanitize_name(ONAME(otmp));
}
} else { /* saving */
/* do not zero out o_ids for ghost levels anymore */

if (objects[otmp->otyp].oc_uses_known)
otmp->known = 0;
otmp->dknown = otmp->bknown = 0;
otmp->rknown = 0;
otmp->lknown = 0;
otmp->cknown = 0;
otmp->invlet = 0;
otmp->no_charge = 0;
otmp->was_thrown = 0;

/* strip user-supplied names */
/* Statue and some corpse names are left intact,
presumably in case they came from score file.
[TODO: this ought to be done differently--names
which came from such a source or came from any
stoned or killed monster should be flagged in
some manner; then we could just check the flag
here and keep "real" names (dead pets, &c) while
discarding player notes attached to statues.] */
if (has_oname(otmp)
&& !(otmp->oartifact || otmp->otyp == STATUE
|| otmp->otyp == SPE_NOVEL
|| (otmp->otyp == CORPSE
&& otmp->corpsenm >= SPECIAL_PM))) {
free_oname(otmp);
}

if (otmp->otyp == SLIME_MOLD)
goodfruit(otmp->spe);
#ifdef MAIL
else if (otmp->otyp == SCR_MAIL)
otmp->spe = 1;
#endif
else if (otmp->otyp == EGG)
otmp->spe = 0;
else if (otmp->otyp == TIN) {
/* make tins of unique monster's meat be empty */
if (otmp->corpsenm >= LOW_PM
&& unique_corpstat(&mons[otmp->corpsenm]))
otmp->corpsenm = NON_PM;
} else if (otmp->otyp == CORPSE || otmp->otyp == STATUE) {
int mnum = otmp->corpsenm;

/* Discard incarnation details of unique
monsters (by passing null instead of otmp
for object), shopkeepers (by passing false
for revival flag), temple priests, and
vault guards in order to prevent corpse
revival or statue reanimation. */
if (has_omonst(otmp)
&& cant_revive(&mnum, FALSE, (struct obj *) 0)) {
free_omonst(otmp);
/* mnum is now either human_zombie or
doppelganger; for corpses of uniques,
we need to force the transformation
now rather than wait until a revival
attempt, otherwise eating this corpse
would behave as if it remains unique */
if (mnum == PM_DOPPELGANGER && otmp->otyp == CORPSE)
set_corpsenm(otmp, mnum);
}
} else if (otmp->otyp == AMULET_OF_YENDOR) {
/* no longer the real Amulet */
otmp->otyp = FAKE_AMULET_OF_YENDOR;
curse(otmp);
} else if (otmp->otyp == CANDELABRUM_OF_INVOCATION) {
if (otmp->lamplit)
end_burn(otmp, TRUE);
otmp->otyp = WAX_CANDLE;
otmp->age = 50L; /* assume used */
if (otmp->spe > 0)
otmp->quan = (long) otmp->spe;
otmp->spe = 0;
otmp->owt = weight(otmp);
curse(otmp);
} else if (otmp->otyp == BELL_OF_OPENING) {
otmp->otyp = BELL;
curse(otmp);
} else if (otmp->otyp == SPE_BOOK_OF_THE_DEAD) {
otmp->otyp = SPE_BLANK_PAPER;
curse(otmp);
}
}
}
}

/* while loading bones, strip out text possibly supplied by old player
that might accidentally or maliciously disrupt new player's display */
void
sanitize_name(namebuf)
char *namebuf;
{
int c;
boolean strip_8th_bit =
!strcmp(windowprocs.name, "tty") && !iflags.wc_eight_bit_input;

/* it's tempting to skip this for single-user platforms, since
only the current player could have left these bones--except
things like "hearse" and other bones exchange schemes make
that assumption false */
while (*namebuf) {
c = *namebuf & 0177;
if (c < ' ' || c == '\177') {
/* non-printable or undesirable */
*namebuf = '.';
} else if (c != *namebuf) {
/* expected to be printable if user wants such things */
if (strip_8th_bit)
*namebuf = '_';
}
++namebuf;
}
}

/* called by savebones(); also by finish_paybill(shk.c) */
void
drop_upon_death(mtmp, cont, x, y)
struct monst *mtmp;
struct obj *cont;
int x, y;
{
struct obj *otmp;

u.twoweap = 0; /* ensure curse() won't cause swapwep to drop twice */
while ((otmp = invent) != 0) {
obj_extract_self(otmp);
obj_no_longer_held(otmp);

otmp->owornmask = 0;
/* lamps don't go out when dropped */
if ((cont || artifact_light(otmp)) && obj_is_burning(otmp))
end_burn(otmp, TRUE); /* smother in statue */

if (otmp->otyp == SLIME_MOLD)
goodfruit(otmp->spe);

if (rn2(5))
curse(otmp);
if (mtmp)
(void) add_to_minv(mtmp, otmp);
else if (cont)
(void) add_to_container(cont, otmp);
else
place_object(otmp, x, y);
}
if (cont)
cont->owt = weight(cont);
}

/* possibly restore oracle's room and/or put her back inside it; returns
False if she's on the wrong level and should be removed, True otherwise */
STATIC_OVL boolean
fixuporacle(oracle)
struct monst *oracle;
{
coord cc;
int ridx, o_ridx;

/* oracle doesn't move, but knight's joust or monk's staggering blow
could push her onto a hole in the floor; at present, traps don't
activate in such situation hence she won't fall to another level;
however, that could change so be prepared to cope with such things */
if (!Is_oracle_level(&u.uz))
return FALSE;

oracle->mpeaceful = 1;
o_ridx = levl[oracle->mx][oracle->my].roomno - ROOMOFFSET;
if (o_ridx >= 0 && rooms[o_ridx].rtype == DELPHI)
return TRUE; /* no fixup needed */

/*
* The Oracle isn't in DELPHI room.  Either hero entered her chamber
* and got the one-time welcome message, converting it into an
* ordinary room, or she got teleported out, or both.  Try to put
* her back inside her room, if necessary, and restore its type.
*/

/* find original delphi chamber; should always succeed */
for (ridx = 0; ridx < SIZE(rooms); ++ridx)
if (rooms[ridx].orig_rtype == DELPHI)
break;

if (o_ridx != ridx && ridx < SIZE(rooms)) {
/* room found and she's not not in it, so try to move her there */
cc.x = (rooms[ridx].lx + rooms[ridx].hx) / 2;
cc.y = (rooms[ridx].ly + rooms[ridx].hy) / 2;
if (enexto(&cc, cc.x, cc.y, oracle->data)) {
rloc_to(oracle, cc.x, cc.y);
o_ridx = levl[oracle->mx][oracle->my].roomno - ROOMOFFSET;
}
/* [if her room is already full, she might end up outside;
that's ok, next hero just won't get any welcome message,
same as used to happen before this fixup was introduced] */
}
if (ridx == o_ridx) /* if she's in her room, mark it as such */
rooms[ridx].rtype = DELPHI;
return TRUE; /* keep oracle in new bones file */
}

/* check whether bones are feasible */
boolean
can_make_bones()
{
register struct trap *ttmp;

if (!flags.bones)
return FALSE;
if (ledger_no(&u.uz) <= 0 || ledger_no(&u.uz) > maxledgerno())
return FALSE;
if (no_bones_level(&u.uz))
return FALSE; /* no bones for specific levels */
if (u.uswallow) {
return FALSE; /* no bones when swallowed */
}
if (!Is_branchlev(&u.uz)) {
/* no bones on non-branches with portals */
for (ttmp = ftrap; ttmp; ttmp = ttmp->ntrap)
if (ttmp->ttyp == MAGIC_PORTAL)
return FALSE;
}

if (depth(&u.uz) <= 0                 /* bulletproofing for endgame */
|| (!rn2(1 + (depth(&u.uz) >> 2)) /* fewer ghosts on low levels */
&& !wizard))
return FALSE;
/* don't let multiple restarts generate multiple copies of objects
in bones files */
if (discover)
return FALSE;
return TRUE;
}

/* save bones and possessions of a deceased adventurer */
void
savebones(how, when, corpse)
int how;
time_t when;
struct obj *corpse;
{
int fd, x, y;
struct trap *ttmp;
struct monst *mtmp;
struct permonst *mptr;
struct fruit *f;
struct cemetery *newbones;
char c, *bonesid;
char whynot[BUFSZ];

/* caller has already checked `can_make_bones()' */

clear_bypasses();
fd = open_bonesfile(&u.uz, &bonesid);
if (fd >= 0) {
(void) nhclose(fd);
if (wizard) {
if (yn("Bones file already exists.  Replace it?") == 'y') {
if (delete_bonesfile(&u.uz))
goto make_bones;
else
pline("Cannot unlink old bones.");
}
}
/* compression can change the file's name, so must
wait until after any attempt to delete this file */
compress_bonesfile();
return;
}

make_bones:
unleash_all();
/* in case these characters are not in their home bases */
for (mtmp = fmon; mtmp; mtmp = mtmp->nmon) {
if (DEADMONSTER(mtmp))
continue;
mptr = mtmp->data;
if (mtmp->iswiz || mptr == &mons[PM_MEDUSA]
|| mptr->msound == MS_NEMESIS || mptr->msound == MS_LEADER
|| mptr == &mons[PM_VLAD_THE_IMPALER]
|| (mptr == &mons[PM_ORACLE] && !fixuporacle(mtmp)))
mongone(mtmp);
}
if (u.usteed)
dismount_steed(DISMOUNT_BONES);
dmonsfree(); /* discard dead or gone monsters */

/* mark all fruits as nonexistent; when we come to them we'll mark
* them as existing (using goodfruit())
*/
for (f = ffruit; f; f = f->nextf)
f->fid = -f->fid;

/* check iron balls separately--maybe they're not carrying it */
if (uball)
uball->owornmask = uchain->owornmask = 0;

/* dispose of your possessions, usually cursed */
if (u.ugrave_arise == (NON_PM - 1)) {
struct obj *otmp;

/* embed your possessions in your statue */
otmp = mk_named_object(STATUE, &mons[u.umonnum], u.ux, u.uy, plname);

drop_upon_death((struct monst *) 0, otmp, u.ux, u.uy);
if (!otmp)
return; /* couldn't make statue */
mtmp = (struct monst *) 0;
} else if (u.ugrave_arise < LOW_PM) {
/* drop everything */
drop_upon_death((struct monst *) 0, (struct obj *) 0, u.ux, u.uy);
/* trick makemon() into allowing monster creation
* on your location
*/
in_mklev = TRUE;
mtmp = makemon(&mons[PM_GHOST], u.ux, u.uy, MM_NONAME);
in_mklev = FALSE;
if (!mtmp)
return;
mtmp = christen_monst(mtmp, plname);
if (corpse)
(void) obj_attach_mid(corpse, mtmp->m_id);
} else {
/* give your possessions to the monster you become */
in_mklev = TRUE; /* use <u.ux,u.uy> as-is */
mtmp = makemon(&mons[u.ugrave_arise], u.ux, u.uy, NO_MINVENT);
in_mklev = FALSE;
if (!mtmp) {
drop_upon_death((struct monst *) 0, (struct obj *) 0, u.ux, u.uy);
u.ugrave_arise = NON_PM; /* in case caller cares */
return;
}
/* give mummy-from-hero a wrapping unless hero already
carries one; don't bother forcing it to become worn */
if (mtmp->data->mlet == S_MUMMY && !carrying(MUMMY_WRAPPING))
(void) mongets(mtmp, MUMMY_WRAPPING);
mtmp = christen_monst(mtmp, plname);
newsym(u.ux, u.uy);
/* ["Your body rises from the dead as an <mname>..." used
to be given here, but it has been moved to done() so that
it gets delivered even when savebones() isn't called] */
drop_upon_death(mtmp, (struct obj *) 0, u.ux, u.uy);
m_dowear(mtmp, TRUE);
}
if (mtmp) {
mtmp->m_lev = (u.ulevel ? u.ulevel : 1);
mtmp->mhp = mtmp->mhpmax = u.uhpmax;
mtmp->female = flags.female;
mtmp->msleeping = 1;
}
for (mtmp = fmon; mtmp; mtmp = mtmp->nmon) {
resetobjs(mtmp->minvent, FALSE);
/* do not zero out m_ids for bones levels any more */
mtmp->mlstmv = 0L;
if (mtmp->mtame)
mtmp->mtame = mtmp->mpeaceful = 0;
}
for (ttmp = ftrap; ttmp; ttmp = ttmp->ntrap) {
ttmp->madeby_u = 0;
ttmp->tseen = (ttmp->ttyp == HOLE);
}
resetobjs(fobj, FALSE);
resetobjs(level.buriedobjlist, FALSE);

/* Hero is no longer on the map. */
u.ux = u.uy = 0;

/* Clear all memory from the level. */
for (x = 1; x < COLNO; x++)
for (y = 0; y < ROWNO; y++) {
levl[x][y].seenv = 0;
levl[x][y].waslit = 0;
levl[x][y].glyph = cmap_to_glyph(S_stone);
lastseentyp[x][y] = 0;
}

/* Attach bones info to the current level before saving. */
newbones = (struct cemetery *) alloc(sizeof *newbones);
/* entries are '\0' terminated but have fixed length allocations,
so pre-fill with spaces to initialize any excess room */
(void) memset((genericptr_t) newbones, ' ', sizeof *newbones);
/* format name+role,&c, death reason, and date+time;
gender and alignment reflect final values rather than what the
character started out as, same as topten and logfile entries */
Sprintf(newbones->who, "%s-%.3s-%.3s-%.3s-%.3s", plname, urole.filecode,
urace.filecode, genders[flags.female].filecode,
aligns[1 - u.ualign.type].filecode);
formatkiller(newbones->how, sizeof newbones->how, how);
Strcpy(newbones->when, yyyymmddhhmmss(when));
/* final resting place, used to decide when bones are discovered */
newbones->frpx = u.ux, newbones->frpy = u.uy;
newbones->bonesknown = FALSE;
/* if current character died on a bones level, the cemetery list
will have multiple entries, most recent (this dead hero) first */
newbones->next = level.bonesinfo;
level.bonesinfo = newbones;
/* flag these bones if they are being created in wizard mode;
they might already be flagged as such, even when we're playing
in normal mode, if this level came from a previous bones file */
if (wizard)
level.flags.wizard_bones = 1;

fd = create_bonesfile(&u.uz, &bonesid, whynot);
if (fd < 0) {
if (wizard)
pline1(whynot);
/* bones file creation problems are silent to the player.
* Keep it that way, but place a clue into the paniclog.
*/
paniclog("savebones", whynot);
return;
}
c = (char) (strlen(bonesid) + 1);

#ifdef MFLOPPY /* check whether there is room */
if (iflags.checkspace) {
savelev(fd, ledger_no(&u.uz), COUNT_SAVE);
/* savelev() initializes bytes_counted to 0, so it must come
* first here even though it does not in the real save.  the
* resulting extra bflush() at the end of savelev() may increase
* bytes_counted by a couple over what the real usage will be.
*
* note it is safe to call store_version() here only because
* bufon() is null for ZEROCOMP, which MFLOPPY uses -- otherwise
* this code would have to know the size of the version
* information itself.
*/
store_version(fd);
store_savefileinfo(fd);
bwrite(fd, (genericptr_t) &c, sizeof c);
bwrite(fd, (genericptr_t) bonesid, (unsigned) c); /* DD.nnn */
savefruitchn(fd, COUNT_SAVE);
bflush(fd);
if (bytes_counted > freediskspace(bones)) { /* not enough room */
if (wizard)
pline("Insufficient space to create bones file.");
(void) nhclose(fd);
cancel_bonesfile();
return;
}
co_false(); /* make sure stuff before savelev() gets written */
}
#endif /* MFLOPPY */

store_version(fd);
store_savefileinfo(fd);
bwrite(fd, (genericptr_t) &c, sizeof c);
bwrite(fd, (genericptr_t) bonesid, (unsigned) c); /* DD.nnn */
savefruitchn(fd, WRITE_SAVE | FREE_SAVE);
update_mlstmv(); /* update monsters for eventual restoration */
savelev(fd, ledger_no(&u.uz), WRITE_SAVE | FREE_SAVE);
bclose(fd);
commit_bonesfile(&u.uz);
compress_bonesfile();
}

int
getbones()
{
register int fd;
register int ok;
char c, *bonesid, oldbonesid[10];

if (discover) /* save bones files for real games */
return 0;

if (!flags.bones)
return 0;
/* wizard check added by GAN 02/05/87 */
if (rn2(3) /* only once in three times do we find bones */
&& !wizard)
return 0;
if (no_bones_level(&u.uz))
return 0;
fd = open_bonesfile(&u.uz, &bonesid);
if (fd < 0)
return 0;

if (validate(fd, bones) != 0) {
if (!wizard)
pline("Discarding unuseable bones; no need to panic...");
ok = FALSE;
} else {
ok = TRUE;
if (wizard) {
if (yn("Get bones?") == 'n') {
(void) nhclose(fd);
compress_bonesfile();
return 0;
}
}
mread(fd, (genericptr_t) &c, sizeof c); /* length incl. '\0' */
mread(fd, (genericptr_t) oldbonesid, (unsigned) c); /* DD.nnn */
if (strcmp(bonesid, oldbonesid) != 0) {
char errbuf[BUFSZ];

Sprintf(errbuf, "This is bones level '%s', not '%s'!", oldbonesid,
bonesid);
if (wizard) {
pline1(errbuf);
ok = FALSE; /* won't die of trickery */
}
trickery(errbuf);
} else {
register struct monst *mtmp;

getlev(fd, 0, 0, TRUE);

/* Note that getlev() now keeps tabs on unique
* monsters such as demon lords, and tracks the
* birth counts of all species just as makemon()
* does.  If a bones monster is extinct or has been
* subject to genocide, their mhpmax will be
* set to the magic DEFUNCT_MONSTER cookie value.
*/
for (mtmp = fmon; mtmp; mtmp = mtmp->nmon) {
if (has_mname(mtmp))
sanitize_name(MNAME(mtmp));
if (mtmp->mhpmax == DEFUNCT_MONSTER) {
if (wizard) {
debugpline1("Removing defunct monster %s from bones.",
mtmp->data->mname);
}
mongone(mtmp);
} else
/* to correctly reset named artifacts on the level */
resetobjs(mtmp->minvent, TRUE);
}
resetobjs(fobj, TRUE);
resetobjs(level.buriedobjlist, TRUE);
}
}
(void) nhclose(fd);
sanitize_engravings();
u.uroleplay.numbones++;

if (wizard) {
if (yn("Unlink bones?") == 'n') {
compress_bonesfile();
return ok;
}
}
if (!delete_bonesfile(&u.uz)) {
/* When N games try to simultaneously restore the same
* bones file, N-1 of them will fail to delete it
* (the first N-1 under AmigaDOS, the last N-1 under UNIX).
* So no point in a mysterious message for a normal event
* -- just generate a new level for those N-1 games.
*/
/* pline("Cannot unlink bones."); */
return 0;
}
return ok;
}

/*bones.c*/