.ref-BSD-4_3_Net_2/usr/src/games/hack/hack.lev.c

/* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
/* hack.lev.c - version 1.0.3 */

#include "hack.h"
#include "def.mkroom.h"
#include <stdio.h>
extern struct monst *restmonchn();
extern struct obj *restobjchn();
extern struct obj *billobjs;
extern char *itoa();
extern char SAVEF[];
extern int hackpid;
extern xchar dlevel;
extern char nul[];

#ifndef NOWORM
#include        "def.wseg.h"
extern struct wseg *wsegs[32], *wheads[32];
extern long wgrowtime[32];
#endif NOWORM

boolean level_exists[MAXLEVEL+1];

savelev(fd,lev)
int fd;
xchar lev;
{
#ifndef NOWORM
        register struct wseg *wtmp, *wtmp2;
        register tmp;
#endif NOWORM

        if(fd < 0) panic("Save on bad file!");  /* impossible */
        if(lev >= 0 && lev <= MAXLEVEL)
                level_exists[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
}

bwrite(fd,loc,num)
register fd;
register char *loc;
register unsigned 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);
}

saveobjchn(fd,otmp)
register fd;
register struct obj *otmp;
{
        register 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));
}

savemonchn(fd,mtmp)
register fd;
register struct monst *mtmp;
{
        register 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));
}

savegoldchn(fd,gold)
register fd;
register struct gold *gold;
{
        register 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));
}

savetrapchn(fd,trap)
register fd;
register struct trap *trap;
{
        register 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));
}

getlev(fd,pid,lev)
int fd,pid;
xchar lev;
{
        register struct gold *gold;
        register struct trap *trap;
#ifndef NOWORM
        register struct wseg *wtmp;
#endif NOWORM
        register 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;
          register struct monst *mtmp, *mtmp2;
          extern char genocided[];

          for(mtmp = fmon; mtmp; mtmp = mtmp2) {
                long newhp;             /* tmoves may be very large */

                mtmp2 = mtmp->nmon;
                if(index(genocided, mtmp->data->mlet)) {
                        mondead(mtmp);
                        continue;
                }

                if(mtmp->mtame && tmoves > 250) {
                        mtmp->mtame = 0;
                        mtmp->mpeaceful = 0;
                }

                newhp = mtmp->mhp +
                        (index(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
}

mread(fd, buf, len)
register fd;
register char *buf;
register unsigned len;
{
        register 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.");
        }
}

mklev()
{
        extern boolean in_mklev;

        if(getbones()) return;

        in_mklev = TRUE;
        makelevel();
        in_mklev = FALSE;
}