OpenBSD-4.6/games/hack/hack.lev.c
/* $OpenBSD: hack.lev.c,v 1.6 2003/05/19 06:30:56 pjanzen 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.
*/
#ifndef lint
static const char rcsid[] = "$OpenBSD: hack.lev.c,v 1.6 2003/05/19 06:30:56 pjanzen Exp $";
#endif /* not lint */
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include "hack.h"
extern struct obj *billobjs;
extern char SAVEF[];
extern int hackpid;
extern xchar dlevel;
extern char nul[];
#ifndef NOWORM
extern struct wseg *wsegs[32], *wheads[32];
extern long wgrowtime[32];
#endif /* NOWORM */
boolean level_exists[MAXLEVEL+1];
void
savelev(int fd, xchar lev)
{
#ifndef NOWORM
struct wseg *wtmp, *wtmp2;
int tmp;
#endif /* NOWORM */
if (fd < 0)
panic("Save on bad file!"); /* impossible */
if (lev >= 0 && lev <= MAXLEVEL)
level_exists[(int)lev] = TRUE;
bwrite(fd,(char *) &hackpid,sizeof(hackpid));
bwrite(fd,(char *) &lev,sizeof(lev));
bwrite(fd,(char *) levl,sizeof(levl));
bwrite(fd,(char *) &moves,sizeof(long));
bwrite(fd,(char *) &xupstair,sizeof(xupstair));
bwrite(fd,(char *) &yupstair,sizeof(yupstair));
bwrite(fd,(char *) &xdnstair,sizeof(xdnstair));
bwrite(fd,(char *) &ydnstair,sizeof(ydnstair));
savemonchn(fd, fmon);
savegoldchn(fd, fgold);
savetrapchn(fd, ftrap);
saveobjchn(fd, fobj);
saveobjchn(fd, billobjs);
billobjs = 0;
save_engravings(fd);
#ifndef QUEST
bwrite(fd,(char *) rooms,sizeof(rooms));
bwrite(fd,(char *) doors,sizeof(doors));
#endif /* QUEST */
fgold = 0;
ftrap = 0;
fmon = 0;
fobj = 0;
#ifndef NOWORM
bwrite(fd,(char *) wsegs,sizeof(wsegs));
for(tmp=1; tmp<32; tmp++){
for(wtmp = wsegs[tmp]; wtmp; wtmp = wtmp2){
wtmp2 = wtmp->nseg;
bwrite(fd,(char *) wtmp,sizeof(struct wseg));
}
wsegs[tmp] = 0;
}
bwrite(fd,(char *) wgrowtime,sizeof(wgrowtime));
#endif /* NOWORM */
}
void
bwrite(int fd, char *loc, unsigned int num)
{
/* lint wants the 3rd arg of write to be an int; lint -p an unsigned */
if(write(fd, loc, (int) num) != num)
panic("cannot write %u bytes to file #%d", num, fd);
}
void
saveobjchn(int fd, struct obj *otmp)
{
struct obj *otmp2;
unsigned xl;
int minusone = -1;
while(otmp) {
otmp2 = otmp->nobj;
xl = otmp->onamelth;
bwrite(fd, (char *) &xl, sizeof(int));
bwrite(fd, (char *) otmp, xl + sizeof(struct obj));
free((char *) otmp);
otmp = otmp2;
}
bwrite(fd, (char *) &minusone, sizeof(int));
}
void
savemonchn(int fd, struct monst *mtmp)
{
struct monst *mtmp2;
unsigned xl;
int minusone = -1;
struct permonst *monbegin = &mons[0];
bwrite(fd, (char *) &monbegin, sizeof(monbegin));
while(mtmp) {
mtmp2 = mtmp->nmon;
xl = mtmp->mxlth + mtmp->mnamelth;
bwrite(fd, (char *) &xl, sizeof(int));
bwrite(fd, (char *) mtmp, xl + sizeof(struct monst));
if(mtmp->minvent) saveobjchn(fd,mtmp->minvent);
free((char *) mtmp);
mtmp = mtmp2;
}
bwrite(fd, (char *) &minusone, sizeof(int));
}
void
savegoldchn(int fd, struct gold *gold)
{
struct gold *gold2;
while(gold) {
gold2 = gold->ngold;
bwrite(fd, (char *) gold, sizeof(struct gold));
free((char *) gold);
gold = gold2;
}
bwrite(fd, nul, sizeof(struct gold));
}
void
savetrapchn(int fd, struct trap *trap)
{
struct trap *trap2;
while(trap) {
trap2 = trap->ntrap;
bwrite(fd, (char *) trap, sizeof(struct trap));
free((char *) trap);
trap = trap2;
}
bwrite(fd, nul, sizeof(struct trap));
}
void
getlev(int fd, int pid, xchar lev)
{
struct gold *gold;
struct trap *trap;
#ifndef NOWORM
struct wseg *wtmp;
#endif /* NOWORM */
int tmp;
long omoves;
int hpid;
xchar dlvl;
/* First some sanity checks */
mread(fd, (char *) &hpid, sizeof(hpid));
mread(fd, (char *) &dlvl, sizeof(dlvl));
if((pid && pid != hpid) || (lev && dlvl != lev)) {
pline("Strange, this map is not as I remember it.");
pline("Somebody is trying some trickery here ...");
pline("This game is void ...");
done("tricked");
}
fgold = 0;
ftrap = 0;
mread(fd, (char *) levl, sizeof(levl));
mread(fd, (char *)&omoves, sizeof(omoves));
mread(fd, (char *)&xupstair, sizeof(xupstair));
mread(fd, (char *)&yupstair, sizeof(yupstair));
mread(fd, (char *)&xdnstair, sizeof(xdnstair));
mread(fd, (char *)&ydnstair, sizeof(ydnstair));
fmon = restmonchn(fd);
/* regenerate animals while on another level */
{ long tmoves = (moves > omoves) ? moves-omoves : 0;
struct monst *mtmp, *mtmp2;
extern char genocided[];
for(mtmp = fmon; mtmp; mtmp = mtmp2) {
long newhp; /* tmoves may be very large */
mtmp2 = mtmp->nmon;
if(strchr(genocided, mtmp->data->mlet)) {
mondead(mtmp);
continue;
}
if(mtmp->mtame && tmoves > 250) {
mtmp->mtame = 0;
mtmp->mpeaceful = 0;
}
newhp = mtmp->mhp +
(strchr(MREGEN, mtmp->data->mlet) ? tmoves : tmoves/20);
if(newhp > mtmp->mhpmax)
mtmp->mhp = mtmp->mhpmax;
else
mtmp->mhp = newhp;
}
}
setgd();
gold = newgold();
mread(fd, (char *)gold, sizeof(struct gold));
while(gold->gx) {
gold->ngold = fgold;
fgold = gold;
gold = newgold();
mread(fd, (char *)gold, sizeof(struct gold));
}
free((char *) gold);
trap = newtrap();
mread(fd, (char *)trap, sizeof(struct trap));
while(trap->tx) {
trap->ntrap = ftrap;
ftrap = trap;
trap = newtrap();
mread(fd, (char *)trap, sizeof(struct trap));
}
free((char *) trap);
fobj = restobjchn(fd);
billobjs = restobjchn(fd);
rest_engravings(fd);
#ifndef QUEST
mread(fd, (char *)rooms, sizeof(rooms));
mread(fd, (char *)doors, sizeof(doors));
#endif /* QUEST */
#ifndef NOWORM
mread(fd, (char *)wsegs, sizeof(wsegs));
for(tmp = 1; tmp < 32; tmp++) if(wsegs[tmp]){
wheads[tmp] = wsegs[tmp] = wtmp = newseg();
while(1) {
mread(fd, (char *)wtmp, sizeof(struct wseg));
if(!wtmp->nseg) break;
wheads[tmp]->nseg = wtmp = newseg();
wheads[tmp] = wtmp;
}
}
mread(fd, (char *)wgrowtime, sizeof(wgrowtime));
#endif /* NOWORM */
}
void
mread(int fd, char *buf, unsigned len)
{
int rlen;
extern boolean restoring;
rlen = read(fd, buf, (int) len);
if(rlen != len){
pline("Read %d instead of %u bytes.\n", rlen, len);
if(restoring) {
(void) unlink(SAVEF);
error("Error restoring old game.");
}
panic("Error reading level file.");
}
}
void
mklev()
{
extern boolean in_mklev;
if(getbones()) return;
in_mklev = TRUE;
makelevel();
in_mklev = FALSE;
}