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save.c
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1257 lines (1155 loc) · 41.8 KB
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/* NetHack 3.7 save.c $NHDT-Date: 1661240721 2022/08/23 07:45:21 $ $NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.195 $ */
/* 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
static void savelevchn(NHFILE *);
static void savelevl(NHFILE *,boolean);
static void savedamage(NHFILE *);
static void save_bubbles(NHFILE *, xint8);
static void save_stairs(NHFILE *);
static void save_bc(NHFILE *);
static void saveobj(NHFILE *,struct obj *);
static void saveobjchn(NHFILE *,struct obj **);
static void savemon(NHFILE *,struct monst *);
static void savemonchn(NHFILE *,struct monst *);
static void savetrapchn(NHFILE *,struct trap *);
static void save_gamelog(NHFILE *);
static void savegamestate(NHFILE *);
static void savelev_core(NHFILE *, xint8);
static void save_msghistory(NHFILE *);
#ifdef ZEROCOMP
static void zerocomp_bufon(int);
static void zerocomp_bufoff(int);
static void zerocomp_bflush(int);
static void zerocomp_bwrite(int, genericptr_t, unsigned int);
static void zerocomp_bputc(int);
#endif
#if defined(HANGUPHANDLING)
#define HUP if (!gp.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)
gp.program_state.done_hup = 0;
#endif
if (dosave0()) {
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;
gp.program_state.saving++; /* inhibit status and perm_invent updates */
/* 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 */
if (!gp.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_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;
}
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_savefileinfo(nhfp);
if (nhfp && nhfp->fplog)
(void) fprintf(nhfp->fplog, "# post-validation\n");
store_plname_in_file(nhfp);
gu.ustuck_id = (u.ustuck ? u.ustuck->m_id : 0);
gu.usteed_id = (u.usteed ? u.usteed->m_id : 0);
/* 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 (!(gl.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(gk.killer.name, whynot);
HUP done(TRICKED);
goto done;
}
minit(); /* ZEROCOMP */
getlev(onhfp, gh.hackpid, ltmp);
close_nhfile(onhfp);
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) <mp, sizeof ltmp); /* lvl no. */
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_compress(fq_save);
/* this should probably come sooner... */
gp.program_state.something_worth_saving = 0;
res = 1;
done:
gp.program_state.saving--;
return res;
}
static void
save_gamelog(NHFILE *nhfp)
{
struct gamelog_line *tmp = gg.gamelog, *tmp2;
int slen;
while (tmp) {
tmp2 = tmp->next;
if (perform_bwrite(nhfp)) {
if (nhfp->structlevel) {
slen = Strlen(tmp->text);
bwrite(nhfp->fd, (genericptr_t) &slen, sizeof slen);
bwrite(nhfp->fd, (genericptr_t) tmp->text, slen);
bwrite(nhfp->fd, (genericptr_t) tmp,
sizeof (struct gamelog_line));
}
}
if (release_data(nhfp)) {
free((genericptr_t) tmp->text);
free((genericptr_t) tmp);
}
tmp = tmp2;
}
if (perform_bwrite(nhfp)) {
if (nhfp->structlevel) {
slen = -1;
bwrite(nhfp->fd, (genericptr_t) &slen, sizeof slen);
}
}
if (release_data(nhfp))
gg.gamelog = NULL;
}
static void
savegamestate(NHFILE *nhfp)
{
unsigned long uid;
gp.program_state.saving++; /* caller should/did already set this... */
uid = (unsigned long) getuid();
if (nhfp->structlevel) {
bwrite(nhfp->fd, (genericptr_t) &uid, sizeof uid);
bwrite(nhfp->fd, (genericptr_t) &gc.context, sizeof gc.context);
bwrite(nhfp->fd, (genericptr_t) &flags, sizeof flags);
}
urealtime.finish_time = getnow();
urealtime.realtime += timet_delta(urealtime.finish_time,
urealtime.start_timing);
if (nhfp->structlevel) {
bwrite(nhfp->fd, (genericptr_t) &u, sizeof u);
bwrite(nhfp->fd, yyyymmddhhmmss(ubirthday), 14);
bwrite(nhfp->fd, (genericptr_t) &urealtime.realtime,
sizeof urealtime.realtime);
bwrite(nhfp->fd, yyyymmddhhmmss(urealtime.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;
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) gm.mvitals, sizeof gm.mvitals);
save_dungeon(nhfp, (boolean) !!perform_bwrite(nhfp),
(boolean) !!release_data(nhfp));
savelevchn(nhfp);
if (nhfp->structlevel) {
bwrite(nhfp->fd, (genericptr_t) &gm.moves, sizeof gm.moves);
bwrite(nhfp->fd, (genericptr_t) &gq.quest_status,
sizeof gq.quest_status);
bwrite(nhfp->fd, (genericptr_t) gs.spl_book,
sizeof (struct spell) * (MAXSPELL + 1));
}
save_artifacts(nhfp);
save_oracles(nhfp);
if (gu.ustuck_id) {
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) &gu.ustuck_id,
sizeof gu.ustuck_id);
}
if (gu.usteed_id) {
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) &gu.usteed_id,
sizeof gu.usteed_id);
}
if (nhfp->structlevel) {
bwrite(nhfp->fd, (genericptr_t) gp.pl_character,
sizeof gp.pl_character);
bwrite(nhfp->fd, (genericptr_t) gp.pl_fruit, sizeof gp.pl_fruit);
}
savefruitchn(nhfp);
savenames(nhfp);
save_msghistory(nhfp);
save_gamelog(nhfp);
save_luadata(nhfp);
if (nhfp->structlevel)
bflush(nhfp->fd);
gp.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(gk.killer.name, whynot);
done(TRICKED);
return TRUE;
}
return FALSE;
}
#ifdef INSURANCE
void
savestateinlock(void)
{
int hpid = 0;
char whynot[BUFSZ];
NHFILE *nhfp;
gp.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)) {
gp.program_state.saving--;
return;
}
if (nhfp->structlevel)
(void) read(nhfp->fd, (genericptr_t) &hpid, sizeof hpid);
if (gh.hackpid != hpid) {
Sprintf(whynot, "Level #0 pid (%d) doesn't match ours (%d)!",
hpid, gh.hackpid);
goto giveup;
}
close_nhfile(nhfp);
nhfp = create_levelfile(0, whynot);
if (!nhfp) {
pline1(whynot);
giveup:
Strcpy(gk.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 */
gp.program_state.saving--;
done(TRICKED);
return;
}
nhfp->mode = WRITING;
if (nhfp->structlevel)
(void) write(nhfp->fd, (genericptr_t) &gh.hackpid, sizeof gh.hackpid);
if (flags.ins_chkpt) {
int currlev = ledger_no(&u.uz);
if (nhfp->structlevel)
(void) write(nhfp->fd, (genericptr_t) &currlev, sizeof currlev);
save_savefile_name(nhfp);
store_version(nhfp);
store_savefileinfo(nhfp);
store_plname_in_file(nhfp);
gu.ustuck_id = (u.ustuck ? u.ustuck->m_id : 0);
gu.usteed_id = (u.usteed ? u.usteed->m_id : 0);
/* 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);
}
gp.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 && perform_bwrite(nhfp)) {
if (u.uz.dnum == 0 && u.uz.dlevel == 0) {
gp.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 */
}
static void
savelev_core(NHFILE *nhfp, xint8 lev)
{
#ifdef TOS
short tlev;
#endif
gp.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();
if (lev >= 0 && lev <= maxledgerno())
gl.level_info[lev].flags |= VISITED;
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) &gh.hackpid, sizeof gh.hackpid);
#ifdef TOS
tlev = lev;
tlev &= 0x00ff;
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) &tlev, sizeof tlev);
#else
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) &lev, sizeof lev);
#endif
}
/* 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, &gl.level.bonesinfo);
if (nhfp->mode == FREEING) /* see above */
goto skip_lots;
savelevl(nhfp, ((sfsaveinfo.sfi1 & SFI1_RLECOMP) == SFI1_RLECOMP));
if (nhfp->structlevel) {
bwrite(nhfp->fd, (genericptr_t) gl.lastseentyp, sizeof gl.lastseentyp);
bwrite(nhfp->fd, (genericptr_t) &gm.moves, sizeof gm.moves);
save_stairs(nhfp);
bwrite(nhfp->fd, (genericptr_t) &gu.updest, sizeof (dest_area));
bwrite(nhfp->fd, (genericptr_t) &gd.dndest, sizeof (dest_area));
bwrite(nhfp->fd, (genericptr_t) &gl.level.flags, sizeof gl.level.flags);
bwrite(nhfp->fd, (genericptr_t) &gd.doors_alloc, sizeof gd.doors_alloc);
bwrite(nhfp->fd, (genericptr_t) gd.doors, gd.doors_alloc * sizeof (coord));
}
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, &gl.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 */
if (nhfp->mode != FREEING) {
if (nhfp->structlevel)
bflush(nhfp->fd);
}
gp.program_state.saving--;
if (release_data(nhfp)) {
clear_level_structures();
gf.ftrap = 0;
gb.billobjs = 0;
(void) memset(gr.rooms, 0, sizeof(gr.rooms));
}
return;
}
static void
savelevl(NHFILE* nhfp, boolean rlecomp)
{
#ifdef RLECOMP
struct rm *prm, *rgrm;
int x, y;
uchar match;
if (rlecomp) {
/* perform run-length encoding of rm structs */
rgrm = &levl[0][0]; /* start matching at first rm */
match = 0;
for (y = 0; y < ROWNO; y++) {
for (x = 0; x < COLNO; x++) {
prm = &levl[x][y];
if (prm->glyph == rgrm->glyph && prm->typ == rgrm->typ
&& prm->seenv == rgrm->seenv
&& prm->horizontal == rgrm->horizontal
&& prm->flags == rgrm->flags && prm->lit == rgrm->lit
&& prm->waslit == rgrm->waslit
&& prm->roomno == rgrm->roomno && prm->edge == rgrm->edge
&& prm->candig == rgrm->candig) {
match++;
if (match > 254) {
match = 254; /* undo this match */
goto writeout;
}
} else {
/* run has been broken, write out run-length encoding */
writeout:
if (nhfp->structlevel) {
bwrite(nhfp->fd, (genericptr_t) &match, sizeof match);
bwrite(nhfp->fd, (genericptr_t) rgrm, sizeof *rgrm);
}
/* start encoding again. we have at least 1 rm
in the next run, viz. this one. */
match = 1;
rgrm = prm;
}
}
}
if (match > 0) {
if (nhfp->structlevel) {
bwrite(nhfp->fd, (genericptr_t) &match, sizeof (uchar));
bwrite(nhfp->fd, (genericptr_t) rgrm, sizeof (struct rm));
}
}
return;
}
#else /* !RLECOMP */
nhUse(rlecomp);
#endif /* ?RLECOMP */
if (nhfp->structlevel) {
bwrite(nhfp->fd, (genericptr_t) levl, sizeof levl);
}
return;
}
/* save Plane of Water's air bubbles and Plane of Air's clouds */
static 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 (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) &bbubbly, sizeof bbubbly);
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 (perform_bwrite(nhfp)) {
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) &flag, sizeof flag);
}
nextbones = *cemeteryaddr;
while ((thisbones = nextbones) != 0) {
nextbones = thisbones->next;
if (perform_bwrite(nhfp)) {
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) thisbones, sizeof *thisbones);
}
if (release_data(nhfp))
free((genericptr_t) thisbones);
}
if (release_data(nhfp))
*cemeteryaddr = 0;
}
static void
savedamage(NHFILE* nhfp)
{
register struct damage *damageptr, *tmp_dam;
unsigned int xl = 0;
damageptr = gl.level.damagelist;
for (tmp_dam = damageptr; tmp_dam; tmp_dam = tmp_dam->next)
xl++;
if (perform_bwrite(nhfp)) {
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) &xl, sizeof xl);
}
while (xl--) {
if (perform_bwrite(nhfp)) {
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) damageptr, sizeof *damageptr);
}
tmp_dam = damageptr;
damageptr = damageptr->next;
if (release_data(nhfp))
free((genericptr_t) tmp_dam);
}
if (release_data(nhfp))
gl.level.damagelist = 0;
}
static void
save_stairs(NHFILE* nhfp)
{
stairway *stway = gs.stairs;
int buflen = (int) sizeof *stway;
while (stway) {
if (perform_bwrite(nhfp)) {
boolean use_relative = (gp.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;
}
if (nhfp->structlevel) {
bwrite(nhfp->fd, (genericptr_t) &buflen, sizeof buflen);
bwrite(nhfp->fd, (genericptr_t) stway, sizeof *stway);
}
if (use_relative) {
/* reset stairway dlevel back to absolute */
stway->tolev.dlevel += u.uz.dlevel;
}
}
stway = stway->next;
}
if (perform_bwrite(nhfp)) {
buflen = -1;
if (nhfp->structlevel) {
bwrite(nhfp->fd, (genericptr_t) &buflen, sizeof buflen);
}
}
}
/* if ball and/or chain are loose, make an object chain for it/them and
save that separately from other objects */
static 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 perform_bwrite(); caller handles release_data() */
static void
saveobj(NHFILE *nhfp, struct obj *otmp)
{
int buflen, zerobuf = 0;
buflen = (int) sizeof (struct obj);
if (nhfp->structlevel) {
bwrite(nhfp->fd, (genericptr_t) &buflen, sizeof buflen);
bwrite(nhfp->fd, (genericptr_t) otmp, buflen);
}
if (otmp->oextra) {
buflen = ONAME(otmp) ? (int) strlen(ONAME(otmp)) + 1 : 0;
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) &buflen, sizeof buflen);
if (buflen > 0) {
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) ONAME(otmp), buflen);
}
/* defer to savemon() for this one */
if (OMONST(otmp)) {
savemon(nhfp, OMONST(otmp));
} else {
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) &zerobuf, sizeof zerobuf);
}
/* extra info about scroll of mail */
buflen = OMAILCMD(otmp) ? (int) strlen(OMAILCMD(otmp)) + 1 : 0;
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) &buflen, sizeof buflen);
if (buflen > 0) {
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) OMAILCMD(otmp), 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 */
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) &OMID(otmp), sizeof OMID(otmp));
}
}
/* save an object chain; sets head of list to Null when done;
handles release_data() for each object in the list */
static void
saveobjchn(NHFILE* nhfp, struct obj** obj_p)
{
register struct obj *otmp = *obj_p;
struct obj *otmp2;
boolean is_invent = (otmp && otmp == gi.invent);
int minusone = -1;
while (otmp) {
otmp2 = otmp->nobj;
if (perform_bwrite(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 == gc.context.victual.piece) {
gc.context.victual.o_id = otmp->o_id;
gc.context.victual.piece = (struct obj *) 0;
}
if (otmp == gc.context.tin.tin) {
gc.context.tin.o_id = otmp->o_id;
gc.context.tin.tin = (struct obj *) 0;
}
if (otmp == gc.context.spbook.book) {
gc.context.spbook.o_id = otmp->o_id;
gc.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 */
dealloc_obj(otmp);
}
otmp = otmp2;
}
if (perform_bwrite(nhfp)) {
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) &minusone, sizeof (int));
}
if (release_data(nhfp)) {
if (is_invent)
allunworn(); /* clear uwep, uarm, uball, &c pointers */
*obj_p = (struct obj *) 0;
}
}
static 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);
if (nhfp->structlevel) {
bwrite(nhfp->fd, (genericptr_t) &buflen, sizeof buflen);
bwrite(nhfp->fd, (genericptr_t) mtmp, buflen);
}
if (mtmp->mextra) {
buflen = MGIVENNAME(mtmp) ? (int) strlen(MGIVENNAME(mtmp)) + 1 : 0;
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) &buflen, sizeof buflen);
if (buflen > 0) {
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) MGIVENNAME(mtmp), buflen);
}
buflen = EGD(mtmp) ? (int) sizeof (struct egd) : 0;
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) &buflen, sizeof buflen);
if (buflen > 0) {
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) EGD(mtmp), buflen);
}
buflen = EPRI(mtmp) ? (int) sizeof (struct epri) : 0;
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) &buflen, sizeof buflen);
if (buflen > 0) {
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) EPRI(mtmp), buflen);
}
buflen = ESHK(mtmp) ? (int) sizeof (struct eshk) : 0;
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) &buflen, sizeof (int));
if (buflen > 0) {
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) ESHK(mtmp), buflen);
}
buflen = EMIN(mtmp) ? (int) sizeof (struct emin) : 0;
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) &buflen, sizeof (int));
if (buflen > 0) {
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) EMIN(mtmp), buflen);
}
buflen = EDOG(mtmp) ? (int) sizeof (struct edog) : 0;
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) &buflen, sizeof (int));
if (buflen > 0) {
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) EDOG(mtmp), buflen);
}
/* mcorpsenm is inline int rather than pointer to something,
so doesn't need to be preceded by a length field */
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) &MCORPSENM(mtmp),
sizeof MCORPSENM(mtmp));
}
}
static void
savemonchn(NHFILE* nhfp, register struct monst* mtmp)
{
register struct monst *mtmp2;
int minusone = -1;
while (mtmp) {
mtmp2 = mtmp->nmon;
if (perform_bwrite(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 == gc.context.polearm.hitmon) {
gc.context.polearm.m_id = mtmp->m_id;
gc.context.polearm.hitmon = NULL;
}
mtmp->nmon = NULL; /* nmon saved into mtmp2 */
dealloc_monst(mtmp);
}
mtmp = mtmp2;
}
if (perform_bwrite(nhfp)) {
if (nhfp->structlevel)
bwrite(nhfp->fd, (genericptr_t) &minusone, sizeof (int));
}
}
/* save traps; gf.ftrap is the only trap chain so the 2nd arg is superfluous */
static void
savetrapchn(NHFILE* nhfp, register struct trap* trap)
{
static struct trap zerotrap;
register struct trap *trap2;
while (trap) {
boolean use_relative = (gp.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 (perform_bwrite(nhfp)) {