/*
* Make a chameleon look like a new monster
* returns 1 if the monster actuall changed
*/
int newcham(struct monst *mtmp, struct permonst *mdat)
{
int mhp;
int hpn;
int hpd;
/* Still the same monster */
if(mdat == mtmp->data) {
return 0;
}
#ifndef NOWORM
/* Throw tail away */
if(mtmp->wormno) {
wormdead(mtmp);
}
#endif
hpn = mtmp->mhp;
hpd = mtmp->data->mlevel * 8;
if(hpd == 0) {
hpd = 4;
}
mtmp->data = mdat;
mhp = mdat->mlevel * 8;
/* New hp: same fraction of max as before */
mtmp->mhp = 2 + ((hpn * mhp) / hpd);
hpn = mtmp->orig_hp;
mtmp->orig_hp = 2 + ((hpn * mhp) / hpd);
if(mdat->mlet == 'I') {
mtmp->minvis = 1;
}
else {
mtmp->minvis = 0;
}
#ifndef NOWORM
if((mdat->mlet == 'w') && (getwn(mtmp) != 0)) {
initworm(mtmp);
}
#endif
/* Necessary for 'I' and to force pmon */
unpmon(mtmp);
pmon(mtmp);
return 1;
}
/*
* called with [x,y] = coordinates;
* [0,0] means anyplace
* [u.ux,u.uy] means: call mnexto (if !in_mklev)
*
* In case we make an Orc or killer bee, we make an entire horde (swarm);
* note that in this case we return only one of them (the one at [x,y]).
*/
struct monst *
makemon(struct permonst *ptr, int x, int y)
{
struct monst *mtmp;
int tmp, ct;
boolean anything = (!ptr);
extern boolean in_mklev;
if(x != 0 || y != 0) if(m_at(x,y)) return((struct monst *) 0);
if(ptr){
if(strchr(fut_geno, ptr->mlet)) return((struct monst *) 0);
} else {
ct = CMNUM - strlen(fut_geno);
if(strchr(fut_geno, 'm')) ct++; /* make only 1 minotaur */
if(strchr(fut_geno, '@')) ct++;
if(ct <= 0) return(0); /* no more monsters! */
tmp = rn2(ct*dlevel/24 + 7);
if(tmp < dlevel - 4) tmp = rn2(ct*dlevel/24 + 12);
if(tmp >= ct) tmp = rn1(ct - ct/2, ct/2);
for(ct = 0; ct < CMNUM; ct++){
ptr = &mons[ct];
if(strchr(fut_geno, ptr->mlet))
continue;
if(!tmp--) goto gotmon;
}
panic("makemon?");
}
gotmon:
mtmp = newmonst(ptr->pxlth);
*mtmp = zeromonst; /* clear all entries in structure */
for(ct = 0; ct < ptr->pxlth; ct++)
((char *) &(mtmp->mextra[0]))[ct] = 0;
mtmp->nmon = fmon;
fmon = mtmp;
mtmp->m_id = flags.ident++;
mtmp->data = ptr;
mtmp->mxlth = ptr->pxlth;
if(ptr->mlet == 'D') mtmp->mhpmax = mtmp->mhp = 80;
else if(!ptr->mlevel) mtmp->mhpmax = mtmp->mhp = rnd(4);
else mtmp->mhpmax = mtmp->mhp = d(ptr->mlevel, 8);
mtmp->mx = x;
mtmp->my = y;
mtmp->mcansee = 1;
if(ptr->mlet == 'M'){
mtmp->mimic = 1;
mtmp->mappearance = ']';
}
if(!in_mklev) {
if(x == u.ux && y == u.uy && ptr->mlet != ' ')
mnexto(mtmp);
if(x == 0 && y == 0)
rloc(mtmp);
}
if(ptr->mlet == 's' || ptr->mlet == 'S') {
mtmp->mhide = mtmp->mundetected = 1;
if(in_mklev)
if(mtmp->mx && mtmp->my)
(void) mkobj_at(0, mtmp->mx, mtmp->my);
}
if(ptr->mlet == ':') {
mtmp->cham = 1;
(void) newcham(mtmp, &mons[dlevel+14+rn2(CMNUM-14-dlevel)]);
}
if(ptr->mlet == 'I' || ptr->mlet == ';')
mtmp->minvis = 1;
if(ptr->mlet == 'L' || ptr->mlet == 'N'
|| (in_mklev && strchr("&w;", ptr->mlet) && rn2(5))
) mtmp->msleep = 1;
#ifndef NOWORM
if(ptr->mlet == 'w' && getwn(mtmp))
initworm(mtmp);
#endif /* NOWORM */
if(anything) if(ptr->mlet == 'O' || ptr->mlet == 'k') {
coord mm;
int cnt = rnd(10);
mm.x = x;
mm.y = y;
while(cnt--) {
mm = enexto(mm.x, mm.y);
(void) makemon(ptr, mm.x, mm.y);
}
}
return(mtmp);
}
/* called from resurrect() in addition to losedogs() */
void
mon_arrive(struct monst *mtmp, boolean with_you)
{
struct trap *t;
struct obj *otmp;
xchar xlocale, ylocale, xyloc, xyflags, wander;
int num_segs;
mtmp->dlevel = level;
mtmp->nmon = level->monlist;
level->monlist = mtmp;
if (mtmp->isshk)
set_residency(mtmp, FALSE);
num_segs = mtmp->wormno;
/* baby long worms have no tail so don't use is_longworm() */
if ((mtmp->data == &mons[PM_LONG_WORM]) &&
(mtmp->wormno = get_wormno(mtmp->dlevel)) != 0) {
initworm(mtmp, num_segs);
/* tail segs are not yet initialized or displayed */
} else
mtmp->wormno = 0;
/* some monsters might need to do something special upon arrival _after_
the current level has been fully set up; see dochug() */
mtmp->mstrategy |= STRAT_ARRIVE;
xyloc = mtmp->xyloc;
xyflags = mtmp->xyflags;
xlocale = mtmp->xlocale;
ylocale = mtmp->ylocale;
for (otmp = mtmp->minvent; otmp; otmp = otmp->nobj)
set_obj_level(mtmp->dlevel, otmp);
if (mtmp == u.usteed)
return; /* don't place steed on the map */
if (with_you) {
/* When a monster accompanies you, sometimes it will arrive at your
intended destination and you'll end up next to that spot. This code
doesn't control the final outcome; goto_level(do.c) decides who ends
up at your target spot when there is a monster there too. */
if (!MON_AT(level, u.ux, u.uy) &&
!rn2(mtmp->mtame ? 10 : mtmp->mpeaceful ? 5 : 2))
rloc_to(mtmp, u.ux, u.uy);
else
mnexto(mtmp);
return;
}
/*
* The monster arrived on this level independently of the player.
* Its coordinate fields were overloaded for use as flags that
* specify its final destination.
*/
if (mtmp->mlstmv < moves - 1L) {
/* heal monster for time spent in limbo */
long nmv = moves - 1L - mtmp->mlstmv;
mon_catchup_elapsed_time(mtmp, nmv);
mtmp->mlstmv = moves - 1L;
/* let monster move a bit on new level (see placement code below) */
wander = (xchar) min(nmv, 8);
} else
wander = 0;
switch (xyloc) {
case MIGR_APPROX_XY: /* {x,y}locale set above */
break;
case MIGR_EXACT_XY:
wander = 0;
break;
case MIGR_NEAR_PLAYER:
xlocale = u.ux, ylocale = u.uy;
break;
case MIGR_STAIRS_UP:
xlocale = level->upstair.sx, ylocale = level->upstair.sy;
break;
case MIGR_STAIRS_DOWN:
xlocale = level->dnstair.sx, ylocale = level->dnstair.sy;
break;
case MIGR_LADDER_UP:
xlocale = level->upladder.sx, ylocale = level->upladder.sy;
break;
case MIGR_LADDER_DOWN:
xlocale = level->dnladder.sx, ylocale = level->dnladder.sy;
break;
case MIGR_SSTAIRS:
xlocale = level->sstairs.sx, ylocale = level->sstairs.sy;
break;
case MIGR_PORTAL:
if (In_endgame(&u.uz)) {
/* there is no arrival portal for endgame levels */
/* BUG[?]: for simplicity, this code relies on the fact that we
know that the current endgame levels always build upwards and
never have any exclusion subregion inside their TELEPORT_REGION
settings. */
xlocale =
rn1(level->updest.hx - level->updest.lx + 1, level->updest.lx);
ylocale =
rn1(level->updest.hy - level->updest.ly + 1, level->updest.ly);
break;
}
/* find the arrival portal */
for (t = level->lev_traps; t; t = t->ntrap)
if (t->ttyp == MAGIC_PORTAL)
break;
if (t) {
xlocale = t->tx, ylocale = t->ty;
break;
} else {
impossible("mon_arrive: no corresponding portal?");
}
/*FALLTHRU*/ default:
case MIGR_RANDOM:
xlocale = COLNO;
ylocale = ROWNO;
break;
}
if ((xlocale != COLNO) && wander) {
/* monster moved a bit; pick a nearby location */
/* mnearto() deals w/stone, et al */
char *r = in_rooms(level, xlocale, ylocale, 0);
if (r && *r) {
coord c;
/* somexy() handles irregular level->rooms */
if (somexy(level, &level->rooms[*r - ROOMOFFSET], &c, rng_main))
xlocale = c.x, ylocale = c.y;
else {
xlocale = COLNO;
ylocale = ROWNO;
}
} else { /* not in a room */
int i, j;
i = max(0, xlocale - wander);
j = min(COLNO - 1, xlocale + wander);
xlocale = rn1(j - i, i);
i = max(0, ylocale - wander);
j = min(ROWNO - 1, ylocale + wander);
ylocale = rn1(j - i, i);
}
}
/* moved a bit */
mtmp->mx = COLNO; /* (already is 0) */
mtmp->my = xyflags;
if (xlocale != COLNO)
mnearto(mtmp, xlocale, ylocale, FALSE);
else {
if (!rloc(mtmp, TRUE)) {
/* Failed to place migrating monster, probably because the level is
full. Dump the monster's cargo and leave the monster dead. */
struct obj *obj;
while ((obj = mtmp->minvent) != 0) {
obj_extract_self(obj);
obj_no_longer_held(obj);
if (obj->owornmask & W_MASK(os_wep))
setmnotwielded(mtmp, obj);
obj->owornmask = 0L;
if (xlocale != COLNO && ylocale != ROWNO)
place_object(obj, level, xlocale, ylocale);
else {
rloco(obj);
get_obj_location(obj, &xlocale, &ylocale, 0);
}
}
mkcorpstat(CORPSE, NULL, mtmp->data, level, xlocale, ylocale,
FALSE, rng_main);
mongone(mtmp);
}
}
mtmp->mux = COLNO;
mtmp->muy = ROWNO;
}