/* NetHack 5.0 save.c $NHDT-Date: 1781973065 2026/06/20 16:31:05 $ $NHDT-Branch: NetHack-5.0 $:$NHDT-Revision: 1.263 $ */

/* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */

/*-Copyright (c) Michael Allison, 2009. */

/* NetHack may be freely redistributed. See license for details. */

#include "hack.h"

#ifndef NO_SIGNAL

#include <signal.h>

#endif

#if !defined(LSC) && !defined(O_WRONLY) && !defined(AZTEC_C)

#include <fcntl.h>

#endif

#ifdef MICRO

int dotcnt, dotrow; /* also used in restore */

#endif

staticfn void savelevchn(NHFILE *);

staticfn void savelevl(NHFILE *);

staticfn void savedamage(NHFILE *);

staticfn void save_bubbles(NHFILE *, xint8);

staticfn void save_stairs(NHFILE *);

staticfn void save_bc(NHFILE *);

staticfn void saveobj(NHFILE *, struct obj *);

staticfn void saveobjchn(NHFILE *, struct obj **) NO_NNARGS;

staticfn void savemon(NHFILE *, struct monst *);

staticfn void savemonchn(NHFILE *, struct monst *) NO_NNARGS;

staticfn void savetrapchn(NHFILE *, struct trap *) NO_NNARGS;

staticfn void save_gamelog(NHFILE *);

staticfn void savegamestate(NHFILE *);

staticfn void savelev_core(NHFILE *, xint8);

staticfn void save_msghistory(NHFILE *);

staticfn void save_adjust_levelflags(long);

#if defined(HANGUPHANDLING)

#define HUP if (!program_state.done_hup)

#else

#define HUP

#endif

/* the #save command */

int

dosave(void)

{

clear_nhwindow(WIN_MESSAGE);

if (y_n("Really save?") == 'n') {

clear_nhwindow(WIN_MESSAGE);

if (gm.multi > 0)

nomul(0);

} else {

clear_nhwindow(WIN_MESSAGE);

pline("Saving...");

#if defined(HANGUPHANDLING)

program_state.done_hup = 0;

#endif

if (dosave0()) {

program_state.savefile_completed++;

u.uhp = -1; /* universal game's over indicator */

if (soundprocs.sound_exit_nhsound)

(*soundprocs.sound_exit_nhsound)("dosave");

/* make sure they see the Saving message */

display_nhwindow(WIN_MESSAGE, TRUE);

exit_nhwindows("Be seeing you...");

nh_terminate(EXIT_SUCCESS);

} else

docrt();

}

return ECMD_OK;

}

/* returns 1 if save successful */

int

dosave0(void)

{

const char *fq_save;

xint8 ltmp;

char whynot[BUFSZ];

NHFILE *nhfp, *onhfp;

int res = 0;

program_state.saving++; /* inhibit status and perm_invent updates */

notice_mon_off();

/* we may get here via hangup signal, in which case we want to fix up

a few of things before saving so that they won't be restored in

an improper state; these will be no-ops for normal save sequence */

u.uinvulnerable = 0;

if (iflags.save_uswallow)

u.uswallow = 1, iflags.save_uswallow = 0;

if (iflags.save_uinwater)

u.uinwater = 1, iflags.save_uinwater = 0; /* bypass set_uinwater() */

if (iflags.save_uburied)

u.uburied = 1, iflags.save_uburied = 0;

/* extra handling for hangup save or panic save; without this,

a thrown light source might trigger an "obj_is_local" panic;

if a thrown or kicked object is in transit, put it on the map;

when punished, make sure ball and chain are placed too */

done_object_cleanup(); /* maybe force some items onto map */

/* ensure SAVEF is set; pcmain sets it at startup but the player

name may have changed since then (strstrplay, strstrstrplay) */

set_savefile_name(TRUE);

if (!program_state.something_worth_saving || !gs.SAVEF[0])

goto done;

fq_save = fqname(gs.SAVEF, SAVEPREFIX, 1); /* level files take 0 */

#ifndef NO_SIGNAL

#if defined(UNIX) || defined(VMS)

sethanguphandler((void (*)(int) ) SIG_IGN);

#endif

(void) signal(SIGINT, SIG_IGN);

#endif

HUP if (iflags.window_inited) {

nh_uncompress(fq_save);

nhfp = open_savefile();

if (nhfp) {

close_nhfile(nhfp);

clear_nhwindow(WIN_MESSAGE);

There("seems to be an old save file.");

if (y_n("Overwrite the old file?") == 'n') {

nh_sfconvert(fq_save);

nh_compress(fq_save);

goto done;

}

}

}

HUP mark_synch(); /* flush any buffered screen output */

nhfp = create_savefile();

if (!nhfp) {

HUP pline("Cannot open save file.");

(void) delete_savefile(); /* ab@unido */

goto done;

}

if (nhfp && nhfp->fplog) {

nhfp->rcount = nhfp->wcount = 0L;

}

vision_recalc(2); /* shut down vision to prevent problems

in the event of an impossible() call */

/* undo date-dependent luck adjustments made at startup time */

if (flags.moonphase == FULL_MOON) /* ut-sally!fletcher */

change_luck(-1); /* and unido!ab */

if (flags.friday13)

change_luck(1);

if (iflags.window_inited)

HUP clear_nhwindow(WIN_MESSAGE);

#ifdef MICRO

dotcnt = 0;

dotrow = 2;

curs(WIN_MAP, 1, 1);

if (!WINDOWPORT(X11))

putstr(WIN_MAP, 0, "Saving:");

#endif

nhfp->mode = WRITING | FREEING;

store_version(nhfp);

store_plname_in_file(nhfp);

/* savelev() might save uball and uchain, releasing their memory if

FREEING, so we need to check their status now; if hero is swallowed,

uball and uchain will persist beyond saving map floor and inventory

so these copies of their pointers will be valid and savegamestate()

will know to save them separately (from floor and invent); when not

swallowed, uchain will be stale by then, and uball will be too if

ball is on the floor rather than carried */

gl.looseball = BALL_IN_MON ? uball : 0;

gl.loosechain = CHAIN_IN_MON ? uchain : 0;

savelev(nhfp, ledger_no(&u.uz));

savegamestate(nhfp);

/* While copying level files around, zero out u.uz to keep

* parts of the restore code from completely initializing all

* in-core data structures, since all we're doing is copying.

* This also avoids at least one nasty core dump.

* [gu.uz_save is used by save_bubbles() as well as to restore u.uz]

*/

gu.uz_save = u.uz;

u.uz.dnum = u.uz.dlevel = 0;

/* these pointers are no longer valid, and at least u.usteed

* may mislead place_monster() on other levels

*/

set_ustuck((struct monst *) 0); /* also clears u.uswallow */

u.usteed = (struct monst *) 0;

for (ltmp = (xint8) 1; ltmp <= maxledgerno(); ltmp++) {

if (ltmp == ledger_no(&gu.uz_save))

continue;

if (!(svl.level_info[ltmp].flags & LFILE_EXISTS))

continue;

#ifdef MICRO

curs(WIN_MAP, 1 + dotcnt++, dotrow);

if (dotcnt >= (COLNO - 1)) {

dotrow++;

dotcnt = 0;

}

if (!WINDOWPORT(X11)) {

putstr(WIN_MAP, 0, ".");

}

mark_synch();

#endif

onhfp = open_levelfile(ltmp, whynot);

if (!onhfp) {

HUP pline1(whynot);

close_nhfile(nhfp);

(void) delete_savefile();

HUP Strcpy(svk.killer.name, whynot);

HUP done(TRICKED);

goto done;

}

getlev(onhfp, svh.hackpid, ltmp);

close_nhfile(onhfp);

Sfo_xint8(nhfp, &ltmp, "gamestate-level_number");

savelev(nhfp, ltmp); /* actual level*/

delete_levelfile(ltmp);

}

close_nhfile(nhfp);

u.uz = gu.uz_save;

gu.uz_save.dnum = gu.uz_save.dlevel = 0;

/* get rid of current level --jgm */

delete_levelfile(ledger_no(&u.uz));

delete_levelfile(0);

nh_sfconvert(fq_save);

nh_compress(fq_save);

/* this should probably come sooner... */

program_state.something_worth_saving = 0;

res = 1;

done:

notice_mon_on();

program_state.saving--;

return res;

}

staticfn void

save_gamelog(NHFILE *nhfp)

{

struct gamelog_line *tmp = gg.gamelog, *tmp2;

int slen;

while (tmp) {

tmp2 = tmp->next;

if (nhfp->mode & (COUNTING | WRITING)) {

slen = Strlen(tmp->text);

Sfo_int(nhfp, &slen, "gamelog-length");

Sfo_char(nhfp, tmp->text, "gamelog-gamelog_text", slen);

Sfo_gamelog_line(nhfp, tmp, "gamelog-gamelog_line");

}

if (nhfp->mode & FREEING) {

free((genericptr_t) tmp->text);

free((genericptr_t) tmp);

}

tmp = tmp2;

}

if (nhfp->mode & (COUNTING | WRITING)) {

slen = -1;

Sfo_int(nhfp, &slen, "gamelog-length");

}

if (nhfp->mode & FREEING)

gg.gamelog = NULL;

}

staticfn void

savegamestate(NHFILE *nhfp)

{

int i;

unsigned long uid;

program_state.saving++; /* caller should/did already set this... */

uid = (unsigned long) getuid();

Sfo_ulong(nhfp, &uid, "gamestate-uid");

Sfo_char(nhfp, &svn.nhuuid[0], "nhuuid", sizeof svn.nhuuid);

Sfo_long(nhfp, &svm.moves, "gamestate-moves");

moves_to_relative_time(&svc.context.seer_turn);

moves_to_relative_time(&svc.context.digging.lastdigtime);

Sfo_context_info(nhfp, &svc.context, "gamestate-context");

relative_time_to_moves(&svc.context.seer_turn);

relative_time_to_moves(&svc.context.digging.lastdigtime);

Sfo_flag(nhfp, &flags, "gamestate-flags");

urealtime.finish_time = getnow();

urealtime.realtime += timet_delta(urealtime.finish_time,

urealtime.start_timing);

Sfo_long(nhfp, &svw.wreserve, "wreserve");

Sfo_int32(nhfp, &svw.wtreserved, "wtreserved");

/*

* In a normal save operation initiated by the player,

* the u.ustuck_mid and u.usteed_mid were already set

* by savemonchn() called from savelev_core(). Under

* that operation, u.ustuck and u.usteed pointers no longer

* point to valid locations here. Their non-zero values serve

* only to flag that they are were set, but the pointers

* must not be dereferenced.

*/

if (program_state.in_checkpoint) {

/*

* It is critical to ensure that u.ustuck_mid and u.usteed_mid

* hold current and correct data, in case this is needed by

* recover. The pointers, if set, are still pointing at

* valid data during a checkpoint operation, unlike during

* a synchronized save operation.

*/

u.ustuck_mid = (u.ustuck) ? u.ustuck->m_id : 0;

u.usteed_mid = (u.usteed) ? u.usteed->m_id : 0;

}

Sfo_you(nhfp, &u, "gamestate-you");

/* clear the in-memory value of these, now that they have been

* successfully written out.

*/

u.ustuck_mid = 0;

u.usteed_mid = 0;

Sfo_char(nhfp, yyyymmddhhmmss(ubirthday), "gamestate-ubirthday", 14);

Sfo_long(nhfp, &urealtime.realtime, "gamestate-realtime");

Sfo_char(nhfp, yyyymmddhhmmss(urealtime.start_timing), "gamestate-start_timing", 14);

/* this is the value to use for the next update of urealtime.realtime */

urealtime.start_timing = urealtime.finish_time;

save_killers(nhfp);

/* must come before gm.migrating_objs and gm.migrating_mons are freed */

save_timers(nhfp, RANGE_GLOBAL);

save_light_sources(nhfp, RANGE_GLOBAL);

/* when FREEING, deletes objects in invent and sets invent to Null;

pointers into invent (uwep, uarmg, uamul, &c) are set to Null too */

saveobjchn(nhfp, &gi.invent);

/* save ball and chain if they happen to be in an unusual state */

save_bc(nhfp);

saveobjchn(nhfp, &gm.migrating_objs); /* frees objs and sets to Null */

savemonchn(nhfp, gm.migrating_mons);

if (release_data(nhfp))

gm.migrating_mons = (struct monst *) 0;

for (i = 0; i < NUMMONS; ++i) {

Sfo_mvitals(nhfp, &svm.mvitals[i], "gamestate-mvitals");

}

save_dungeon(nhfp, (boolean) !!update_file(nhfp),

(boolean) !!release_data(nhfp));

savelevchn(nhfp);

Sfo_q_score(nhfp, &svq.quest_status, "gamestate-quest_status");

for (i = 0; i < (MAXSPELL + 1); ++i) {

Sfo_spell(nhfp, &svs.spl_book[i], "gamestate-spl_book");

}

save_artifacts(nhfp);

save_oracles(nhfp);

Sfo_char(nhfp, svp.pl_character, "gamestate-pl_character", sizeof svp.pl_character);

Sfo_char(nhfp, svp.pl_fruit, "gamestate-pl_fruit", sizeof svp.pl_fruit);

savefruitchn(nhfp);

savenames(nhfp);

save_msghistory(nhfp);

save_gamelog(nhfp);

save_luadata(nhfp);

if (nhfp->structlevel)

bflush(nhfp->fd);

program_state.saving--;

return;

}

/* potentially called from goto_level(do.c) as well as savestateinlock() */

boolean

tricked_fileremoved(NHFILE *nhfp, char *whynot)

{

if (!nhfp) {

pline1(whynot);

pline("Probably someone removed it.");

Strcpy(svk.killer.name, whynot);

done(TRICKED);

return TRUE;

}

return FALSE;

}

#ifdef INSURANCE

void

savestateinlock(void)

{

int hpid = 0;

char whynot[BUFSZ];

NHFILE *nhfp;

if (!program_state.something_worth_saving || program_state.in_self_recover)

return;

program_state.saving++; /* inhibit status and perm_invent updates */

/* When checkpointing is on, the full state needs to be written

* on each checkpoint. When checkpointing is off, only the pid

* needs to be in the level.0 file, so it does not need to be

* constantly rewritten. When checkpointing is turned off during

* a game, however, the file has to be rewritten once to truncate

* it and avoid restoring from outdated information.

*

* Restricting gh.havestate to this routine means that an additional

* noop pid rewriting will take place on the first "checkpoint" after

* the game is started or restored, if checkpointing is off.

*/

if (flags.ins_chkpt || gh.havestate) {

/* save the rest of the current game state in the lock file,

* following the original int pid, the current level number,

* and the current savefile name, which should not be subject

* to any internal compression schemes since they must be

* readable by an external utility

*/

nhfp = open_levelfile(0, whynot);

if (tricked_fileremoved(nhfp, whynot)) {

program_state.saving--;

return;

}

Sfi_int(nhfp, &hpid, "gamestate-hackpid");

if (svh.hackpid != hpid) {

Sprintf(whynot, "Level #0 pid (%d) doesn't match ours (%d)!",

hpid, svh.hackpid);

goto giveup;

}

close_nhfile(nhfp);

nhfp = create_levelfile(0, whynot);

if (!nhfp) {

pline1(whynot);

giveup:

Strcpy(svk.killer.name, whynot);

/* done(TRICKED) will return when running in wizard mode;

clear the display-update-suppression flag before rather

than after so that screen updating behaves normally;

game data shouldn't be inconsistent yet, unlike it would

become midway through saving */

program_state.saving--;

done(TRICKED);

return;

}

nhfp->mode = WRITING;

Sfo_int(nhfp, &svh.hackpid, "gamestate-hackpid");

if (flags.ins_chkpt) {

int currlev = ledger_no(&u.uz);

Sfo_int(nhfp, &currlev, "gamestate-savestateinlock");

save_savefile_name(nhfp);

store_version(nhfp);

store_plname_in_file(nhfp);

/* if ball and/or chain aren't on floor or in invent, keep a copy

of their pointers; not valid when on floor or in invent */

gl.looseball = BALL_IN_MON ? uball : 0;

gl.loosechain = CHAIN_IN_MON ? uchain : 0;

savegamestate(nhfp);

}

close_nhfile(nhfp);

}

program_state.saving--;

gh.havestate = flags.ins_chkpt;

return;

}

#endif

void

savelev(NHFILE *nhfp, xint8 lev)

{

boolean set_uz_save = (gu.uz_save.dnum == 0 && gu.uz_save.dlevel == 0);

/* caller might have already set up gu.uz_save and zeroed u.uz;

if not, we need to set it for save_bubbles(); caveat: if the

player quits during character selection, u.uz won't be set yet

but we'll be called during run-down */

if (set_uz_save && (nhfp->mode & (COUNTING | WRITING))) {

if (u.uz.dnum == 0 && u.uz.dlevel == 0) {

program_state.something_worth_saving = 0;

panic("savelev: where are we?");

}

gu.uz_save = u.uz;

}

savelev_core(nhfp, lev);

if (set_uz_save)

gu.uz_save.dnum = gu.uz_save.dlevel = 0; /* unset */

}

staticfn void

savelev_core(NHFILE *nhfp, xint8 lev)

{

#ifdef TOS

short tlev;

#endif

int i, c, r;

long timestamp;

coord *tmpc;

program_state.saving++; /* even if current mode is FREEING */

if (!nhfp)

panic("Save on bad file!"); /* impossible */

/*

* Level file contents:

* version info (handled by caller);

* save file info (compression type; also by caller);

* process ID;

* internal level number (ledger number);

* bones info;

* actual level data.

*

* If we're tearing down the current level without saving anything

* (which happens at end of game or upon entrance to endgame or

* after an aborted restore attempt) then we don't want to do any

* actual I/O. So when only freeing, we skip to the bones info

* portion (which has some freeing to do), then jump quite a bit

* further ahead to the middle of the 'actual level data' portion.

*/

if (nhfp->mode != FREEING) {

/* WRITING (probably ORed with FREEING), or COUNTING */

/* purge any dead monsters (necessary if we're starting

a panic save rather than a normal one, or sometimes

when changing levels without taking time -- e.g.

create statue trap then immediately level teleport) */

if (iflags.purge_monsters)

dmonsfree();

/* clear objs_deleted list too */

if (go.objs_deleted)

dobjsfree(); /* really free deleted objects */

if (lev >= 0 && lev <= maxledgerno())

svl.level_info[lev].flags |= VISITED;

Sfo_int(nhfp, &svh.hackpid, "gamestate-hackpid");

Sfo_xint8(nhfp, &lev, "gamestate-dlvl");

}

/* bones info comes before level data; the intent is for an external

program ('hearse') to be able to match a bones file with the

corresponding log file entry--or perhaps just skip that?--without

the guessing that was needed in 3.4.3 and without having to

interpret level data to find where to start; unfortunately it

still needs to handle all the data compression schemes */

savecemetery(nhfp, &svl.level.bonesinfo);

if (nhfp->mode == FREEING) /* see above */

goto skip_lots;

savelevl(nhfp);

for (c = 0; c < COLNO; ++c) {

for (r = 0; r < ROWNO; ++r) {

Sfo_schar(nhfp, &svl.lastseentyp[c][r], "lastseentyp");

}

}

/* preserve idle time when copying levels; match getlev()'s

monster catch-up guard */

timestamp = (!u.uz.dlevel || program_state.restoring == REST_LEVELS)

? svo.omoves : svm.moves;

Sfo_long(nhfp, &timestamp, "lev-timestmp");

save_stairs(nhfp);

Sfo_dest_area(nhfp, &svu.updest, "lev-updest");

Sfo_dest_area(nhfp, &svd.dndest, "lev-dndest");

save_adjust_levelflags(timestamp);

Sfo_levelflags(nhfp, &svl.level.flags, "lev-level_flags");

rest_adjust_levelflags(svm.moves - timestamp, FALSE);

Sfo_int(nhfp, &svd.doors_alloc, "lev-doors_alloc");

/* don't rely on underlying write() behavior to write

* nothing if count arg is 0, just skip it */

if (svd.doors_alloc) {

tmpc = svd.doors;

for (i = 0; i < svd.doors_alloc; ++i) {

Sfo_nhcoord(nhfp, tmpc, "lev-doors");

tmpc++;

}

}

save_rooms(nhfp); /* no dynamic memory to reclaim */

/* from here on out, saving also involves allocated memory cleanup */

skip_lots:

/* timers and lights must be saved before monsters and objects */

save_timers(nhfp, RANGE_LEVEL);

save_light_sources(nhfp, RANGE_LEVEL);

savemonchn(nhfp, fmon);

save_worm(nhfp); /* save worm information */

savetrapchn(nhfp, gf.ftrap);

saveobjchn(nhfp, &fobj);

saveobjchn(nhfp, &svl.level.buriedobjlist);

saveobjchn(nhfp, &gb.billobjs);

save_engravings(nhfp);

savedamage(nhfp); /* pending shop wall and/or floor repair */

save_regions(nhfp);

save_bubbles(nhfp, lev); /* for water and air */

save_exclusions(nhfp);

save_track(nhfp);

if (nhfp->mode != FREEING) {

if (nhfp->structlevel)

bflush(nhfp->fd);

}

program_state.saving--;

if (release_data(nhfp)) {

clear_level_structures();

gf.ftrap = 0;

gb.billobjs = 0;

(void) memset(svr.rooms, 0, sizeof(svr.rooms));

}

return;

}

void

save_adjust_levelflags(long timestamp)

{

/* use the same time base as lev-timestmp */

svl.level.flags.stasis_until -= timestamp;

}

staticfn void

savelevl(NHFILE *nhfp)

{

int x, y;

for (x = 0; x < COLNO; x++) {

for (y = 0; y < ROWNO; y++) {

Sfo_rm(nhfp, &levl[x][y], "location-rm");

}

}

return;

}

/* save Plane of Water's air bubbles and Plane of Air's clouds */

staticfn void

save_bubbles(NHFILE *nhfp, xint8 lev)

{

xint8 bbubbly;

/* air bubbles and clouds used to be saved as part of game state

because restoring them needs dungeon data that isn't available

during the first pass of their levels; now that they are part of

the current level instead, we write a zero or non-zero marker

so that restore can determine whether they are present even when

u.uz and ledger_no() aren't available to it yet */

bbubbly = 0;

if (lev == ledger_no(&water_level) || lev == ledger_no(&air_level))

bbubbly = lev; /* non-zero */

if (update_file(nhfp))

Sfo_xint8(nhfp, &bbubbly, "bubbles-bbubbly");

#if 0

if (nhfp->structlevel)

xxwrite(nhfp->fd, (genericptr_t) &bbubbly, sizeof bbubbly);

#endif

if (bbubbly)

save_waterlevel(nhfp); /* save air bubbles or clouds */

}

/* used when saving a level and also when saving dungeon overview data */

void

savecemetery(NHFILE *nhfp, struct cemetery **cemeteryaddr)

{

struct cemetery *thisbones, *nextbones;

int flag;

flag = *cemeteryaddr ? 0 : -1;

if (update_file(nhfp)) {

Sfo_int(nhfp, &flag, "cemetery-cemetery_flag");

}

nextbones = *cemeteryaddr;

while ((thisbones = nextbones) != 0) {

nextbones = thisbones->next;

if (update_file(nhfp)) {

Sfo_cemetery(nhfp, thisbones, "cemetery-bonesinfo");

}

if (release_data(nhfp))

free((genericptr_t) thisbones);

}

if (release_data(nhfp))

*cemeteryaddr = 0;

}

staticfn void

savedamage(NHFILE *nhfp)

{

struct damage *damageptr, *tmp_dam;

unsigned int xl = 0;

damageptr = svl.level.damagelist;

for (tmp_dam = damageptr; tmp_dam; tmp_dam = tmp_dam->next)

xl++;

if (update_file(nhfp)) {

Sfo_unsigned(nhfp, &xl, "damage-damage_count");

}

while (damageptr) {

if (update_file(nhfp)) {

Sfo_damage(nhfp, damageptr, "damage");

}

tmp_dam = damageptr;

damageptr = damageptr->next;

if (release_data(nhfp))

free((genericptr_t) tmp_dam);

}

if (release_data(nhfp))

svl.level.damagelist = 0;

}

staticfn void

save_stairs(NHFILE *nhfp)

{

stairway *stway = gs.stairs;

int buflen = (int) sizeof *stway;

while (stway) {

if (update_file(nhfp)) {

boolean use_relative = (program_state.restoring != REST_GSTATE

&& stway->tolev.dnum == u.uz.dnum);

if (use_relative) {

/* make dlevel relative to current level */

stway->tolev.dlevel -= u.uz.dlevel;

}

Sfo_int(nhfp, &buflen, "stairs-staircount");

Sfo_stairway(nhfp, stway, "stairs-stairway");

if (use_relative) {

/* reset stairway dlevel back to absolute */

stway->tolev.dlevel += u.uz.dlevel;

}

}

stway = stway->next;

}

if (update_file(nhfp)) {

buflen = -1;

Sfo_int(nhfp, &buflen, "stairs-staircount");

}

}

/* if ball and/or chain are loose, make an object chain for it/them and

save that separately from other objects */

staticfn void

save_bc(NHFILE *nhfp)

{

struct obj *bc_objs = 0;

/* save ball and chain if they are currently dangling free (i.e. not

on floor or in inventory); 'looseball' and 'loosechain' have been

set up in caller because ball and chain will be gone by now if on

floor, or ball gone if carried */

if (gl.loosechain) {

gl.loosechain->nobj = bc_objs; /* uchain */

bc_objs = gl.loosechain;

if (nhfp->mode & FREEING) {

setworn((struct obj *) 0, W_CHAIN); /* sets 'uchain' to Null */

gl.loosechain = (struct obj *) 0;

}

}

if (gl.looseball) {

gl.looseball->nobj = bc_objs;

bc_objs = gl.looseball;

if (nhfp->mode & FREEING) {

setworn((struct obj *) 0, W_BALL); /* sets 'uball' to Null */

gl.looseball = (struct obj *) 0;

}

}

saveobjchn(nhfp, &bc_objs); /* frees objs in list, sets bc_objs to Null */

}

/* save one object;

caveat: this is only for update_file(); caller handles release_data() */

staticfn void

saveobj(NHFILE *nhfp, struct obj *otmp)

{

int buflen, zerobuf = 0;

buflen = (int) sizeof (struct obj);

Sfo_int(nhfp, &buflen, "obj-obj_length");

Sfo_obj(nhfp, otmp, "obj");

if (otmp->oextra) {

buflen = ONAME(otmp) ? (int) strlen(ONAME(otmp)) + 1 : 0;

Sfo_int(nhfp, &buflen, "obj-oname_length");

if (buflen > 0) {

Sfo_char(nhfp, ONAME(otmp), "obj-oname", buflen);

}

/* defer to savemon() for this one */

if (OMONST(otmp)) {

savemon(nhfp, OMONST(otmp));

} else {

Sfo_int(nhfp, &zerobuf, "obj-omonst_length");

}

/* extra info about scroll of mail */

buflen = OMAILCMD(otmp) ? (int) strlen(OMAILCMD(otmp)) + 1 : 0;

Sfo_int(nhfp, &buflen, "obj-omailcmd_length");

if (buflen > 0) {

Sfo_char(nhfp, OMAILCMD(otmp), "obj-omailcmd", buflen);

}

/* omid used to be indirect via a pointer in oextra but has

become part of oextra itself; 0 means not applicable and

gets saved/restored whenever any other oextra components do */

Sfo_unsigned(nhfp, &OMID(otmp), "obj-omid");

}

}

/* save an object chain; sets head of list to Null when done;

handles release_data() for each object in the list */

staticfn void

saveobjchn(NHFILE *nhfp, struct obj **obj_p)

{

struct obj *otmp = *obj_p;

struct obj *otmp2;

boolean is_invent = (otmp && otmp == gi.invent);

int minusone = -1;

while (otmp) {

otmp2 = otmp->nobj;

if (update_file(nhfp)) {

saveobj(nhfp, otmp);

}

if (Has_contents(otmp))

saveobjchn(nhfp, &otmp->cobj);

if (release_data(nhfp)) {

/*

* If these are on the floor, the discarding could be

* due to game save, or we could just be changing levels.

* Always invalidate the pointer, but ensure that we have

* the o_id in order to restore the pointer on reload.

*/

if (otmp == svc.context.victual.piece) {

svc.context.victual.o_id = otmp->o_id;

svc.context.victual.piece = (struct obj *) 0;

}

if (otmp == svc.context.tin.tin) {

svc.context.tin.o_id = otmp->o_id;

svc.context.tin.tin = (struct obj *) 0;

}

if (otmp == svc.context.spbook.book) {

svc.context.spbook.o_id = otmp->o_id;

svc.context.spbook.book = (struct obj *) 0;

}

otmp->where = OBJ_FREE; /* set to free so dealloc will work */

otmp->nobj = NULL; /* nobj saved into otmp2 */

otmp->cobj = NULL; /* contents handled above */

otmp->timed = 0; /* not timed any more */

otmp->lamplit = 0; /* caller handled lights */

otmp->leashmon = 0; /* mon->mleashed could still be set;

* unfortunately, we can't clear that

* until after the monster is saved */

/* clear 'uball' and 'uchain' pointers if resetting their mask;

could also do same for other worn items but don't need to */

if ((otmp->owornmask & (W_BALL | W_CHAIN)) != 0)

setworn((struct obj *) 0,

otmp->owornmask & (W_BALL | W_CHAIN));

otmp->owornmask = 0L; /* no longer care */

program_state.freeingdata++;

dealloc_obj(otmp);

program_state.freeingdata--;

}

otmp = otmp2;

}

if (update_file(nhfp)) {

Sfo_int(nhfp, &minusone, "obj-obj_length");

}

if (release_data(nhfp)) {

if (is_invent)

allunworn(); /* clear uwep, uarm, uball, &c pointers */

*obj_p = (struct obj *) 0;

}

}

staticfn void

savemon(NHFILE *nhfp, struct monst *mtmp)

{

int buflen;

mtmp->mtemplit = 0; /* normally clear; if set here then a panic save

* is being written while bhit() was executing */

buflen = (int) sizeof (struct monst);

Sfo_int(nhfp, &buflen, "monst-monst_length");

Sfo_monst(nhfp, mtmp, "monst");

if (mtmp->mextra) {

buflen = MGIVENNAME(mtmp) ? (int) strlen(MGIVENNAME(mtmp)) + 1 : 0;

Sfo_int(nhfp, &buflen, "monst-mgivenname_length");

if (buflen > 0) {

Sfo_char(nhfp, MGIVENNAME(mtmp), "monst-mgivenname", buflen);

}

buflen = EGD(mtmp) ? (int) sizeof (struct egd) : 0;

Sfo_int(nhfp, &buflen, "monst-egd_length");

if (buflen > 0) {

Sfo_egd(nhfp, EGD(mtmp), "monst-egd");

}

buflen = EPRI(mtmp) ? (int) sizeof (struct epri) : 0;

Sfo_int(nhfp, &buflen, "monst-epri_length");

if (buflen > 0) {

Sfo_epri(nhfp, EPRI(mtmp), "monst-epri");

}

buflen = ESHK(mtmp) ? (int) sizeof (struct eshk) : 0;

Sfo_int(nhfp, &buflen, "monst-eshk_length");

if (buflen > 0) {

Sfo_eshk(nhfp, ESHK(mtmp), "monst-eshk");

}

buflen = EMIN(mtmp) ? (int) sizeof (struct emin) : 0;

Sfo_int(nhfp, &buflen, "monst-emin_length");

if (buflen > 0) {

Sfo_emin(nhfp, EMIN(mtmp), "monst-emin");

}

buflen = EDOG(mtmp) ? (int) sizeof (struct edog) : 0;

Sfo_int(nhfp, &buflen, "monst-edog_length");

if (buflen > 0) {

/* we only store relative times in save and bones */

moves_to_relative_time(&EDOG(mtmp)->droptime);

moves_to_relative_time(&EDOG(mtmp)->hungrytime);

Sfo_edog(nhfp, EDOG(mtmp), "monst-edog");

relative_time_to_moves(&EDOG(mtmp)->droptime);

relative_time_to_moves(&EDOG(mtmp)->hungrytime);

}

buflen = EBONES(mtmp) ? (int) sizeof (struct ebones) : 0;

Sfo_int(nhfp, &buflen, "monst-ebones_length");

if (buflen > 0) {

Sfo_ebones(nhfp, EBONES(mtmp), "monst-ebones");

}

/* mcorpsenm is inline int rather than pointer to something,

so doesn't need to be preceded by a length field */

buflen = (int) MCORPSENM(mtmp);

Sfo_int(nhfp, &buflen, "monst-mcorpsenm");

}

}

staticfn void

savemonchn(NHFILE *nhfp, struct monst *mtmp)

{

struct monst *mtmp2;

int minusone = -1;

while (mtmp) {

mtmp2 = mtmp->nmon;

if (update_file(nhfp)) {

mtmp->mnum = monsndx(mtmp->data);

if (mtmp->ispriest)

forget_temple_entry(mtmp); /* EPRI() */

savemon(nhfp, mtmp);

}

if (mtmp->minvent)

saveobjchn(nhfp, &mtmp->minvent);

if (release_data(nhfp)) {

if (mtmp == svc.context.polearm.hitmon) {

svc.context.polearm.m_id = mtmp->m_id;

svc.context.polearm.hitmon = NULL;

}

if (mtmp == u.ustuck)

u.ustuck_mid = u.ustuck->m_id;

if (mtmp == u.usteed)

u.usteed_mid = u.usteed->m_id;

mtmp->nmon = NULL; /* nmon saved into mtmp2 */

dealloc_monst(mtmp);

}

mtmp = mtmp2;

}

if (update_file(nhfp)) {

Sfo_int(nhfp, &minusone, "monst-monst_length");

}

}

/* save traps; gf.ftrap is the only trap chain so 2nd arg is superfluous */

staticfn void

savetrapchn(NHFILE *nhfp, struct trap *trap)

{

static struct trap zerotrap;

struct trap *trap2;

while (trap) {

boolean use_relative = (program_state.restoring != REST_GSTATE

&& trap->dst.dnum == u.uz.dnum);

trap2 = trap->ntrap;

if (use_relative)

trap->dst.dlevel -= u.uz.dlevel; /* make it relative */

if (update_file(nhfp)) {

Sfo_trap(nhfp, trap, "trap");

}

if (use_relative)

trap->dst.dlevel += u.uz.dlevel; /* reset back to absolute */

if (release_data(nhfp))

dealloc_trap(trap);

trap = trap2;

}

if (update_file(nhfp)) {

Sfo_trap(nhfp, &zerotrap, "trap");

}

}

/* save all the fruit names and ID's; this is used only in saving whole games

* (not levels) and in saving bones levels. When saving a bones level,

* we only want to save the fruits which exist on the bones level; the bones

* level routine marks nonexistent fruits by making the fid negative.

*/

void

savefruitchn(NHFILE *nhfp)

{

static struct fruit zerofruit;

struct fruit *f2, *f1;

f1 = gf.ffruit;

while (f1) {

f2 = f1->nextf;

if (f1->fid >= 0 && update_file(nhfp)) {

Sfo_fruit(nhfp, f1, "fruit");

}

if (release_data(nhfp))

dealloc_fruit(f1);

f1 = f2;