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freebsd-dev/games/hack/hack.mklev.c
Jordan K. Hubbard 554eb505f8 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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