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freebsd-skq/games/hack/hack.mklev.c
jkh 057afceb86 Bring in the 4.4 Lite games directory, modulo man page changes and segregation 
of the x11 based games.  I'm not going to tag the originals with bsd_44_lite
and do this in two stages since it's just not worth it for this collection,
and I've got directory renames to deal with that way.  Bleah.
Submitted by:	jkh
1994-09-04 04:03:31 +00:00

742 lines
16 KiB
C
Raw Blame History

/* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
/* hack.mklev.c - version 1.0.3 */
#include "hack.h"
extern char *getlogin(), *getenv();
extern struct monst *makemon();
extern struct obj *mkobj_at();
extern struct trap *maketrap();
#define somex() ((random()%(croom->hx-croom->lx+1))+croom->lx)
#define somey() ((random()%(croom->hy-croom->ly+1))+croom->ly)
#include "def.mkroom.h"
#define XLIM 4 /* define minimum required space around a room */
#define YLIM 3
boolean secret; /* TRUE while making a vault: increase [XY]LIM */
struct mkroom rooms[MAXNROFROOMS+1];
int smeq[MAXNROFROOMS+1];
coord doors[DOORMAX];
int doorindex;
struct rm zerorm;
int comp();
schar nxcor;
boolean goldseen;
int nroom;
xchar xdnstair,xupstair,ydnstair,yupstair;
/* Definitions used by makerooms() and addrs() */
#define MAXRS 50 /* max lth of temp rectangle table - arbitrary */
struct rectangle {
xchar rlx,rly,rhx,rhy;
} rs[MAXRS+1];
int rscnt,rsmax; /* 0..rscnt-1: currently under consideration */
/* rscnt..rsmax: discarded */
makelevel()
{
register struct mkroom *croom, *troom;
register unsigned tryct;
register x,y;
nroom = 0;
doorindex = 0;
rooms[0].hx = -1; /* in case we are in a maze */
for(x=0; x<COLNO; x++) for(y=0; y<ROWNO; y++)
levl[x][y] = zerorm;
oinit(); /* assign level dependent obj probabilities */
if(dlevel >= rn1(3, 26)) { /* there might be several mazes */
makemaz();
return;
}
/* construct the rooms */
nroom = 0;
secret = FALSE;
(void) makerooms();
/* construct stairs (up and down in different rooms if possible) */
croom = &rooms[rn2(nroom)];
xdnstair = somex();
ydnstair = somey();
levl[xdnstair][ydnstair].scrsym ='>';
levl[xdnstair][ydnstair].typ = STAIRS;
if(nroom > 1) {
troom = croom;
croom = &rooms[rn2(nroom-1)];
if(croom >= troom) croom++;
}
xupstair = somex(); /* %% < and > might be in the same place */
yupstair = somey();
levl[xupstair][yupstair].scrsym ='<';
levl[xupstair][yupstair].typ = STAIRS;
/* for each room: put things inside */
for(croom = rooms; croom->hx > 0; croom++) {
/* put a sleeping monster inside */
/* Note: monster may be on the stairs. This cannot be
avoided: maybe the player fell through a trapdoor
while a monster was on the stairs. Conclusion:
we have to check for monsters on the stairs anyway. */
if(!rn2(3)) (void)
makemon((struct permonst *) 0, somex(), somey());
/* put traps and mimics inside */
goldseen = FALSE;
while(!rn2(8-(dlevel/6))) mktrap(0,0,croom);
if(!goldseen && !rn2(3)) mkgold(0L,somex(),somey());
if(!rn2(3)) {
(void) mkobj_at(0, somex(), somey());
tryct = 0;
while(!rn2(5)) {
if(++tryct > 100){
printf("tryct overflow4\n");
break;
}
(void) mkobj_at(0, somex(), somey());
}
}
}
qsort((char *) rooms, nroom, sizeof(struct mkroom), comp);
makecorridors();
make_niches();
/* make a secret treasure vault, not connected to the rest */
if(nroom <= (2*MAXNROFROOMS/3)) if(rn2(3)) {
troom = &rooms[nroom];
secret = TRUE;
if(makerooms()) {
troom->rtype = VAULT; /* treasure vault */
for(x = troom->lx; x <= troom->hx; x++)
for(y = troom->ly; y <= troom->hy; y++)
mkgold((long)(rnd(dlevel*100) + 50), x, y);
if(!rn2(3))
makevtele();
}
}
#ifndef QUEST
#ifdef WIZARD
if(wizard && getenv("SHOPTYPE")) mkshop(); else
#endif WIZARD
if(dlevel > 1 && dlevel < 20 && rn2(dlevel) < 3) mkshop();
else
if(dlevel > 6 && !rn2(7)) mkzoo(ZOO);
else
if(dlevel > 9 && !rn2(5)) mkzoo(BEEHIVE);
else
if(dlevel > 11 && !rn2(6)) mkzoo(MORGUE);
else
if(dlevel > 18 && !rn2(6)) mkswamp();
#endif QUEST
}
makerooms() {
register struct rectangle *rsp;
register int lx, ly, hx, hy, lowx, lowy, hix, hiy, dx, dy;
int tryct = 0, xlim, ylim;
/* init */
xlim = XLIM + secret;
ylim = YLIM + secret;
if(nroom == 0) {
rsp = rs;
rsp->rlx = rsp->rly = 0;
rsp->rhx = COLNO-1;
rsp->rhy = ROWNO-1;
rsmax = 1;
}
rscnt = rsmax;
/* make rooms until satisfied */
while(rscnt > 0 && nroom < MAXNROFROOMS-1) {
if(!secret && nroom > (MAXNROFROOMS/3) &&
!rn2((MAXNROFROOMS-nroom)*(MAXNROFROOMS-nroom)))
return(0);
/* pick a rectangle */
rsp = &rs[rn2(rscnt)];
hx = rsp->rhx;
hy = rsp->rhy;
lx = rsp->rlx;
ly = rsp->rly;
/* find size of room */
if(secret)
dx = dy = 1;
else {
dx = 2 + rn2((hx-lx-8 > 20) ? 12 : 8);
dy = 2 + rn2(4);
if(dx*dy > 50)
dy = 50/dx;
}
/* look whether our room will fit */
if(hx-lx < dx + dx/2 + 2*xlim || hy-ly < dy + dy/3 + 2*ylim) {
/* no, too small */
/* maybe we throw this area out */
if(secret || !rn2(MAXNROFROOMS+1-nroom-tryct)) {
rscnt--;
rs[rsmax] = *rsp;
*rsp = rs[rscnt];
rs[rscnt] = rs[rsmax];
tryct = 0;
} else
tryct++;
continue;
}
lowx = lx + xlim + rn2(hx - lx - dx - 2*xlim + 1);
lowy = ly + ylim + rn2(hy - ly - dy - 2*ylim + 1);
hix = lowx + dx;
hiy = lowy + dy;
if(maker(lowx, dx, lowy, dy)) {
if(secret)
return(1);
addrs(lowx-1, lowy-1, hix+1, hiy+1);
tryct = 0;
} else
if(tryct++ > 100)
break;
}
return(0); /* failed to make vault - very strange */
}
addrs(lowx,lowy,hix,hiy)
register int lowx,lowy,hix,hiy;
{
register struct rectangle *rsp;
register int lx,ly,hx,hy,xlim,ylim;
boolean discarded;
xlim = XLIM + secret;
ylim = YLIM + secret;
/* walk down since rscnt and rsmax change */
for(rsp = &rs[rsmax-1]; rsp >= rs; rsp--) {
if((lx = rsp->rlx) > hix || (ly = rsp->rly) > hiy ||
(hx = rsp->rhx) < lowx || (hy = rsp->rhy) < lowy)
continue;
if((discarded = (rsp >= &rs[rscnt]))) {
*rsp = rs[--rsmax];
} else {
rsmax--;
rscnt--;
*rsp = rs[rscnt];
if(rscnt != rsmax)
rs[rscnt] = rs[rsmax];
}
if(lowy - ly > 2*ylim + 4)
addrsx(lx,ly,hx,lowy-2,discarded);
if(lowx - lx > 2*xlim + 4)
addrsx(lx,ly,lowx-2,hy,discarded);
if(hy - hiy > 2*ylim + 4)
addrsx(lx,hiy+2,hx,hy,discarded);
if(hx - hix > 2*xlim + 4)
addrsx(hix+2,ly,hx,hy,discarded);
}
}
addrsx(lx,ly,hx,hy,discarded)
register int lx,ly,hx,hy;
boolean discarded; /* piece of a discarded area */
{
register struct rectangle *rsp;
/* check inclusions */
for(rsp = rs; rsp < &rs[rsmax]; rsp++) {
if(lx >= rsp->rlx && hx <= rsp->rhx &&
ly >= rsp->rly && hy <= rsp->rhy)
return;
}
/* make a new entry */
if(rsmax >= MAXRS) {
#ifdef WIZARD
if(wizard) pline("MAXRS may be too small.");
#endif WIZARD
return;
}
rsmax++;
if(!discarded) {
*rsp = rs[rscnt];
rsp = &rs[rscnt];
rscnt++;
}
rsp->rlx = lx;
rsp->rly = ly;
rsp->rhx = hx;
rsp->rhy = hy;
}
comp(x,y)
register struct mkroom *x,*y;
{
if(x->lx < y->lx) return(-1);
return(x->lx > y->lx);
}
coord
finddpos(xl,yl,xh,yh) {
coord ff;
register x,y;
x = (xl == xh) ? xl : (xl + rn2(xh-xl+1));
y = (yl == yh) ? yl : (yl + rn2(yh-yl+1));
if(okdoor(x, y))
goto gotit;
for(x = xl; x <= xh; x++) for(y = yl; y <= yh; y++)
if(okdoor(x, y))
goto gotit;
for(x = xl; x <= xh; x++) for(y = yl; y <= yh; y++)
if(levl[x][y].typ == DOOR || levl[x][y].typ == SDOOR)
goto gotit;
/* cannot find something reasonable -- strange */
x = xl;
y = yh;
gotit:
ff.x = x;
ff.y = y;
return(ff);
}
/* see whether it is allowable to create a door at [x,y] */
okdoor(x,y)
register x,y;
{
if(levl[x-1][y].typ == DOOR || levl[x+1][y].typ == DOOR ||
levl[x][y+1].typ == DOOR || levl[x][y-1].typ == DOOR ||
levl[x-1][y].typ == SDOOR || levl[x+1][y].typ == SDOOR ||
levl[x][y-1].typ == SDOOR || levl[x][y+1].typ == SDOOR ||
(levl[x][y].typ != HWALL && levl[x][y].typ != VWALL) ||
doorindex >= DOORMAX)
return(0);
return(1);
}
dodoor(x,y,aroom)
register x,y;
register struct mkroom *aroom;
{
if(doorindex >= DOORMAX) {
impossible("DOORMAX exceeded?");
return;
}
if(!okdoor(x,y) && nxcor)
return;
dosdoor(x,y,aroom,rn2(8) ? DOOR : SDOOR);
}
dosdoor(x,y,aroom,type)
register x,y;
register struct mkroom *aroom;
register type;
{
register struct mkroom *broom;
register tmp;
if(!IS_WALL(levl[x][y].typ)) /* avoid SDOORs with '+' as scrsym */
type = DOOR;
levl[x][y].typ = type;
if(type == DOOR)
levl[x][y].scrsym = '+';
aroom->doorct++;
broom = aroom+1;
if(broom->hx < 0) tmp = doorindex; else
for(tmp = doorindex; tmp > broom->fdoor; tmp--)
doors[tmp] = doors[tmp-1];
doorindex++;
doors[tmp].x = x;
doors[tmp].y = y;
for( ; broom->hx >= 0; broom++) broom->fdoor++;
}
/* Only called from makerooms() */
maker(lowx,ddx,lowy,ddy)
schar lowx,ddx,lowy,ddy;
{
register struct mkroom *croom;
register x, y, hix = lowx+ddx, hiy = lowy+ddy;
register xlim = XLIM + secret, ylim = YLIM + secret;
if(nroom >= MAXNROFROOMS) return(0);
if(lowx < XLIM) lowx = XLIM;
if(lowy < YLIM) lowy = YLIM;
if(hix > COLNO-XLIM-1) hix = COLNO-XLIM-1;
if(hiy > ROWNO-YLIM-1) hiy = ROWNO-YLIM-1;
chk:
if(hix <= lowx || hiy <= lowy) return(0);
/* check area around room (and make room smaller if necessary) */
for(x = lowx - xlim; x <= hix + xlim; x++) {
for(y = lowy - ylim; y <= hiy + ylim; y++) {
if(levl[x][y].typ) {
#ifdef WIZARD
if(wizard && !secret)
pline("Strange area [%d,%d] in maker().",x,y);
#endif WIZARD
if(!rn2(3)) return(0);
if(x < lowx)
lowx = x+xlim+1;
else
hix = x-xlim-1;
if(y < lowy)
lowy = y+ylim+1;
else
hiy = y-ylim-1;
goto chk;
}
}
}
croom = &rooms[nroom];
/* on low levels the room is lit (usually) */
/* secret vaults are always lit */
if((rnd(dlevel) < 10 && rn2(77)) || (ddx == 1 && ddy == 1)) {
for(x = lowx-1; x <= hix+1; x++)
for(y = lowy-1; y <= hiy+1; y++)
levl[x][y].lit = 1;
croom->rlit = 1;
} else
croom->rlit = 0;
croom->lx = lowx;
croom->hx = hix;
croom->ly = lowy;
croom->hy = hiy;
croom->rtype = croom->doorct = croom->fdoor = 0;
for(x = lowx-1; x <= hix+1; x++)
for(y = lowy-1; y <= hiy+1; y += (hiy-lowy+2)) {
levl[x][y].scrsym = '-';
levl[x][y].typ = HWALL;
}
for(x = lowx-1; x <= hix+1; x += (hix-lowx+2))
for(y = lowy; y <= hiy; y++) {
levl[x][y].scrsym = '|';
levl[x][y].typ = VWALL;
}
for(x = lowx; x <= hix; x++)
for(y = lowy; y <= hiy; y++) {
levl[x][y].scrsym = '.';
levl[x][y].typ = ROOM;
}
smeq[nroom] = nroom;
croom++;
croom->hx = -1;
nroom++;
return(1);
}
makecorridors() {
register a,b;
nxcor = 0;
for(a = 0; a < nroom-1; a++)
join(a, a+1);
for(a = 0; a < nroom-2; a++)
if(smeq[a] != smeq[a+2])
join(a, a+2);
for(a = 0; a < nroom; a++)
for(b = 0; b < nroom; b++)
if(smeq[a] != smeq[b])
join(a, b);
if(nroom > 2)
for(nxcor = rn2(nroom) + 4; nxcor; nxcor--) {
a = rn2(nroom);
b = rn2(nroom-2);
if(b >= a) b += 2;
join(a, b);
}
}
join(a,b)
register a,b;
{
coord cc,tt;
register tx, ty, xx, yy;
register struct rm *crm;
register struct mkroom *croom, *troom;
register dx, dy, dix, diy, cct;
croom = &rooms[a];
troom = &rooms[b];
/* find positions cc and tt for doors in croom and troom
and direction for a corridor between them */
if(troom->hx < 0 || croom->hx < 0 || doorindex >= DOORMAX) return;
if(troom->lx > croom->hx) {
dx = 1;
dy = 0;
xx = croom->hx+1;
tx = troom->lx-1;
cc = finddpos(xx,croom->ly,xx,croom->hy);
tt = finddpos(tx,troom->ly,tx,troom->hy);
} else if(troom->hy < croom->ly) {
dy = -1;
dx = 0;
yy = croom->ly-1;
cc = finddpos(croom->lx,yy,croom->hx,yy);
ty = troom->hy+1;
tt = finddpos(troom->lx,ty,troom->hx,ty);
} else if(troom->hx < croom->lx) {
dx = -1;
dy = 0;
xx = croom->lx-1;
tx = troom->hx+1;
cc = finddpos(xx,croom->ly,xx,croom->hy);
tt = finddpos(tx,troom->ly,tx,troom->hy);
} else {
dy = 1;
dx = 0;
yy = croom->hy+1;
ty = troom->ly-1;
cc = finddpos(croom->lx,yy,croom->hx,yy);
tt = finddpos(troom->lx,ty,troom->hx,ty);
}
xx = cc.x;
yy = cc.y;
tx = tt.x - dx;
ty = tt.y - dy;
if(nxcor && levl[xx+dx][yy+dy].typ)
return;
dodoor(xx,yy,croom);
cct = 0;
while(xx != tx || yy != ty) {
xx += dx;
yy += dy;
/* loop: dig corridor at [xx,yy] and find new [xx,yy] */
if(cct++ > 500 || (nxcor && !rn2(35)))
return;
if(xx == COLNO-1 || xx == 0 || yy == 0 || yy == ROWNO-1)
return; /* impossible */
crm = &levl[xx][yy];
if(!(crm->typ)) {
if(rn2(100)) {
crm->typ = CORR;
crm->scrsym = CORR_SYM;
if(nxcor && !rn2(50))
(void) mkobj_at(ROCK_SYM, xx, yy);
} else {
crm->typ = SCORR;
crm->scrsym = ' ';
}
} else
if(crm->typ != CORR && crm->typ != SCORR) {
/* strange ... */
return;
}
/* find next corridor position */
dix = abs(xx-tx);
diy = abs(yy-ty);
/* do we have to change direction ? */
if(dy && dix > diy) {
register ddx = (xx > tx) ? -1 : 1;
crm = &levl[xx+ddx][yy];
if(!crm->typ || crm->typ == CORR || crm->typ == SCORR) {
dx = ddx;
dy = 0;
continue;
}
} else if(dx && diy > dix) {
register ddy = (yy > ty) ? -1 : 1;
crm = &levl[xx][yy+ddy];
if(!crm->typ || crm->typ == CORR || crm->typ == SCORR) {
dy = ddy;
dx = 0;
continue;
}
}
/* continue straight on? */
crm = &levl[xx+dx][yy+dy];
if(!crm->typ || crm->typ == CORR || crm->typ == SCORR)
continue;
/* no, what must we do now?? */
if(dx) {
dx = 0;
dy = (ty < yy) ? -1 : 1;
crm = &levl[xx+dx][yy+dy];
if(!crm->typ || crm->typ == CORR || crm->typ == SCORR)
continue;
dy = -dy;
continue;
} else {
dy = 0;
dx = (tx < xx) ? -1 : 1;
crm = &levl[xx+dx][yy+dy];
if(!crm->typ || crm->typ == CORR || crm->typ == SCORR)
continue;
dx = -dx;
continue;
}
}
/* we succeeded in digging the corridor */
dodoor(tt.x, tt.y, troom);
if(smeq[a] < smeq[b])
smeq[b] = smeq[a];
else
smeq[a] = smeq[b];
}
make_niches()
{
register int ct = rnd(nroom/2 + 1);
while(ct--) makeniche(FALSE);
}
makevtele()
{
makeniche(TRUE);
}
makeniche(with_trap)
boolean with_trap;
{
register struct mkroom *aroom;
register struct rm *rm;
register int vct = 8;
coord dd;
register dy,xx,yy;
register struct trap *ttmp;
if(doorindex < DOORMAX)
while(vct--) {
aroom = &rooms[rn2(nroom-1)];
if(aroom->rtype != 0) continue; /* not an ordinary room */
if(aroom->doorct == 1 && rn2(5)) continue;
if(rn2(2)) {
dy = 1;
dd = finddpos(aroom->lx,aroom->hy+1,aroom->hx,aroom->hy+1);
} else {
dy = -1;
dd = finddpos(aroom->lx,aroom->ly-1,aroom->hx,aroom->ly-1);
}
xx = dd.x;
yy = dd.y;
if((rm = &levl[xx][yy+dy])->typ) continue;
if(with_trap || !rn2(4)) {
rm->typ = SCORR;
rm->scrsym = ' ';
if(with_trap) {
ttmp = maketrap(xx, yy+dy, TELEP_TRAP);
ttmp->once = 1;
make_engr_at(xx, yy-dy, "ad ae?ar um");
}
dosdoor(xx, yy, aroom, SDOOR);
} else {
rm->typ = CORR;
rm->scrsym = CORR_SYM;
if(rn2(7))
dosdoor(xx, yy, aroom, rn2(5) ? SDOOR : DOOR);
else {
mksobj_at(SCR_TELEPORTATION, xx, yy+dy);
if(!rn2(3)) (void) mkobj_at(0, xx, yy+dy);
}
}
return;
}
}
/* make a trap somewhere (in croom if mazeflag = 0) */
mktrap(num,mazeflag,croom)
register num,mazeflag;
register struct mkroom *croom;
{
register struct trap *ttmp;
register int kind,nopierc,nomimic,fakedoor,fakegold,tryct = 0;
register xchar mx,my;
extern char fut_geno[];
if(!num || num >= TRAPNUM) {
nopierc = (dlevel < 4) ? 1 : 0;
nomimic = (dlevel < 9 || goldseen ) ? 1 : 0;
if(index(fut_geno, 'M')) nomimic = 1;
kind = rn2(TRAPNUM - nopierc - nomimic);
/* note: PIERC = 7, MIMIC = 8, TRAPNUM = 9 */
} else kind = num;
if(kind == MIMIC) {
register struct monst *mtmp;
fakedoor = (!rn2(3) && !mazeflag);
fakegold = (!fakedoor && !rn2(2));
if(fakegold) goldseen = TRUE;
do {
if(++tryct > 200) return;
if(fakedoor) {
/* note: fakedoor maybe on actual door */
if(rn2(2)){
if(rn2(2))
mx = croom->hx+1;
else mx = croom->lx-1;
my = somey();
} else {
if(rn2(2))
my = croom->hy+1;
else my = croom->ly-1;
mx = somex();
}
} else if(mazeflag) {
extern coord mazexy();
coord mm;
mm = mazexy();
mx = mm.x;
my = mm.y;
} else {
mx = somex();
my = somey();
}
} while(m_at(mx,my) || levl[mx][my].typ == STAIRS);
if(mtmp = makemon(PM_MIMIC,mx,my)) {
mtmp->mimic = 1;
mtmp->mappearance =
fakegold ? '$' : fakedoor ? '+' :
(mazeflag && rn2(2)) ? AMULET_SYM :
"=/)%?![<>" [ rn2(9) ];
}
return;
}
do {
if(++tryct > 200)
return;
if(mazeflag){
extern coord mazexy();
coord mm;
mm = mazexy();
mx = mm.x;
my = mm.y;
} else {
mx = somex();
my = somey();
}
} while(t_at(mx, my) || levl[mx][my].typ == STAIRS);
ttmp = maketrap(mx, my, kind);
if(mazeflag && !rn2(10) && ttmp->ttyp < PIERC)
ttmp->tseen = 1;
}
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