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freebsd-skq/games/hack/hack.mon.c
marcel 520fff788f Add type int to those variables without a type. This is caused by the 
frequent use of ``register var'' instead of ``register int var'' and
the removal of the register hint in the previous commit.
1999-11-16 10:26:38 +00:00

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/* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
/* hack.mon.c - version 1.0.3 */
/* $FreeBSD$ */
#include "hack.h"
#include "hack.mfndpos.h"
#ifndef NULL
#define NULL (char *) 0
#endif
extern struct monst *makemon();
extern struct obj *mkobj_at();
int warnlevel; /* used by movemon and dochugw */
long lastwarntime;
int lastwarnlev;
char *warnings[] = {
"white", "pink", "red", "ruby", "purple", "black"
};
movemon()
{
struct monst *mtmp;
int fr;
warnlevel = 0;
while(1) {
/* find a monster that we haven't treated yet */
/* note that mtmp or mtmp->nmon might get killed
while mtmp moves, so we cannot just walk down the
chain (even new monsters might get created!) */
for(mtmp = fmon; mtmp; mtmp = mtmp->nmon)
if(mtmp->mlstmv < moves) goto next_mon;
/* treated all monsters */
break;
next_mon:
mtmp->mlstmv = moves;
/* most monsters drown in pools */
{ boolean inpool, iseel;
inpool = (levl[mtmp->mx][mtmp->my].typ == POOL);
iseel = (mtmp->data->mlet == ';');
if(inpool && !iseel) {
if(cansee(mtmp->mx,mtmp->my))
pline("%s drowns.", Monnam(mtmp));
mondead(mtmp);
continue;
}
/* but eels have a difficult time outside */
if(iseel && !inpool) {
if(mtmp->mhp > 1) mtmp->mhp--;
mtmp->mflee = 1;
mtmp->mfleetim += 2;
}
}
if(mtmp->mblinded && !--mtmp->mblinded)
mtmp->mcansee = 1;
if(mtmp->mfleetim && !--mtmp->mfleetim)
mtmp->mflee = 0;
if(mtmp->mimic) continue;
if(mtmp->mspeed != MSLOW || !(moves%2)){
/* continue if the monster died fighting */
fr = -1;
if(Conflict && cansee(mtmp->mx,mtmp->my)
&& (fr = fightm(mtmp)) == 2)
continue;
if(fr<0 && dochugw(mtmp))
continue;
}
if(mtmp->mspeed == MFAST && dochugw(mtmp))
continue;
}
warnlevel -= u.ulevel;
if(warnlevel >= SIZE(warnings))
warnlevel = SIZE(warnings)-1;
if(warnlevel >= 0)
if(warnlevel > lastwarnlev || moves > lastwarntime + 5){
char *rr;
switch(Warning & (LEFT_RING | RIGHT_RING)){
case LEFT_RING:
rr = "Your left ring glows";
break;
case RIGHT_RING:
rr = "Your right ring glows";
break;
case LEFT_RING | RIGHT_RING:
rr = "Both your rings glow";
break;
default:
rr = "Your fingertips glow";
break;
}
pline("%s %s!", rr, warnings[warnlevel]);
lastwarntime = moves;
lastwarnlev = warnlevel;
}
dmonsfree(); /* remove all dead monsters */
}
justswld(mtmp,name)
struct monst *mtmp;
char *name;
{
mtmp->mx = u.ux;
mtmp->my = u.uy;
u.ustuck = mtmp;
pmon(mtmp);
kludge("%s swallows you!",name);
more();
seeoff(1);
u.uswallow = 1;
u.uswldtim = 0;
swallowed();
}
youswld(mtmp,dam,die,name)
struct monst *mtmp;
int dam,die;
char *name;
{
if(mtmp != u.ustuck) return;
kludge("%s digests you!",name);
u.uhp -= dam;
if(u.uswldtim++ >= die){ /* a3 */
pline("It totally digests you!");
u.uhp = -1;
}
if(u.uhp < 1) done_in_by(mtmp);
/* flags.botlx = 1; */ /* should we show status line ? */
}
dochugw(mtmp) struct monst *mtmp; {
int x = mtmp->mx;
int y = mtmp->my;
int d = dochug(mtmp);
int dd;
if(!d) /* monster still alive */
if(Warning)
if(!mtmp->mpeaceful)
if(mtmp->data->mlevel > warnlevel)
if((dd = dist(mtmp->mx,mtmp->my)) < dist(x,y))
if(dd < 100)
if(!canseemon(mtmp))
warnlevel = mtmp->data->mlevel;
return(d);
}
/* returns 1 if monster died moving, 0 otherwise */
dochug(mtmp)
struct monst *mtmp;
{
struct permonst *mdat;
int tmp, nearby, scared;
if(mtmp->cham && !rn2(6))
(void) newcham(mtmp, &mons[dlevel+14+rn2(CMNUM-14-dlevel)]);
mdat = mtmp->data;
if(mdat->mlevel < 0)
panic("bad monster %c (%d)",mdat->mlet,mdat->mlevel);
/* regenerate monsters */
if((!(moves%20) || index(MREGEN, mdat->mlet)) &&
mtmp->mhp < mtmp->mhpmax)
mtmp->mhp++;
if(mtmp->mfroz) return(0); /* frozen monsters don't do anything */
if(mtmp->msleep) {
/* wake up, or get out of here. */
/* ettins are hard to surprise */
/* Nymphs and Leprechauns do not easily wake up */
if(cansee(mtmp->mx,mtmp->my) &&
(!Stealth || (mdat->mlet == 'e' && rn2(10))) &&
(!index("NL",mdat->mlet) || !rn2(50)) &&
(Aggravate_monster || index("d1", mdat->mlet)
|| (!rn2(7) && !mtmp->mimic)))
mtmp->msleep = 0;
else return(0);
}
/* not frozen or sleeping: wipe out texts written in the dust */
wipe_engr_at(mtmp->mx, mtmp->my, 1);
/* confused monsters get unconfused with small probability */
if(mtmp->mconf && !rn2(50)) mtmp->mconf = 0;
/* some monsters teleport */
if(mtmp->mflee && index("tNL", mdat->mlet) && !rn2(40)){
rloc(mtmp);
return(0);
}
if(mdat->mmove < rnd(6)) return(0);
/* fleeing monsters might regain courage */
if(mtmp->mflee && !mtmp->mfleetim
&& mtmp->mhp == mtmp->mhpmax && !rn2(25))
mtmp->mflee = 0;
nearby = (dist(mtmp->mx, mtmp->my) < 3);
scared = (nearby && (sengr_at("Elbereth", u.ux, u.uy) ||
sobj_at(SCR_SCARE_MONSTER, u.ux, u.uy)));
if(scared && !mtmp->mflee) {
mtmp->mflee = 1;
mtmp->mfleetim = (rn2(7) ? rnd(10) : rnd(100));
}
if(!nearby ||
mtmp->mflee ||
mtmp->mconf ||
(mtmp->minvis && !rn2(3)) ||
(index("BIuy", mdat->mlet) && !rn2(4)) ||
(mdat->mlet == 'L' && !u.ugold && (mtmp->mgold || rn2(2))) ||
(!mtmp->mcansee && !rn2(4)) ||
mtmp->mpeaceful
) {
tmp = m_move(mtmp,0); /* 2: monster died moving */
if(tmp == 2 || (tmp && mdat->mmove <= 12))
return(tmp == 2);
}
if(!index("Ea", mdat->mlet) && nearby &&
!mtmp->mpeaceful && u.uhp > 0 && !scared) {
if(mhitu(mtmp))
return(1); /* monster died (e.g. 'y' or 'F') */
}
/* extra movement for fast monsters */
if(mdat->mmove-12 > rnd(12)) tmp = m_move(mtmp,1);
return(tmp == 2);
}
m_move(mtmp,after)
struct monst *mtmp;
{
struct monst *mtmp2;
int nx,ny,omx,omy,appr,nearer,cnt,i,j;
xchar gx,gy,nix,niy,chcnt;
schar chi;
boolean likegold, likegems, likeobjs;
char msym = mtmp->data->mlet;
schar mmoved = 0; /* not strictly nec.: chi >= 0 will do */
coord poss[9];
int info[9];
if(mtmp->mfroz || mtmp->msleep)
return(0);
if(mtmp->mtrapped) {
i = mintrap(mtmp);
if(i == 2) return(2); /* he died */
if(i == 1) return(0); /* still in trap, so didnt move */
}
if(mtmp->mhide && o_at(mtmp->mx,mtmp->my) && rn2(10))
return(0); /* do not leave hiding place */
#ifndef NOWORM
if(mtmp->wormno)
goto not_special;
#endif NOWORM
/* my dog gets a special treatment */
if(mtmp->mtame) {
return( dog_move(mtmp, after) );
}
/* likewise for shopkeeper */
if(mtmp->isshk) {
mmoved = shk_move(mtmp);
if(mmoved >= 0)
goto postmov;
mmoved = 0; /* follow player outside shop */
}
/* and for the guard */
if(mtmp->isgd) {
mmoved = gd_move();
goto postmov;
}
/* teleport if that lies in our nature ('t') or when badly wounded ('1') */
if((msym == 't' && !rn2(5))
|| (msym == '1' && (mtmp->mhp < 7 || (!xdnstair && !rn2(5))
|| levl[u.ux][u.uy].typ == STAIRS))) {
if(mtmp->mhp < 7 || (msym == 't' && rn2(2)))
rloc(mtmp);
else
mnexto(mtmp);
mmoved = 1;
goto postmov;
}
/* spit fire ('D') or use a wand ('1') when appropriate */
if(index("D1", msym))
inrange(mtmp);
if(msym == 'U' && !mtmp->mcan && canseemon(mtmp) &&
mtmp->mcansee && rn2(5)) {
if(!Confusion)
pline("%s's gaze has confused you!", Monnam(mtmp));
else
pline("You are getting more and more confused.");
if(rn2(3)) mtmp->mcan = 1;
Confusion += d(3,4); /* timeout */
}
not_special:
if(!mtmp->mflee && u.uswallow && u.ustuck != mtmp) return(1);
appr = 1;
if(mtmp->mflee) appr = -1;
if(mtmp->mconf || Invis || !mtmp->mcansee ||
(index("BIy", msym) && !rn2(3)))
appr = 0;
omx = mtmp->mx;
omy = mtmp->my;
gx = u.ux;
gy = u.uy;
if(msym == 'L' && appr == 1 && mtmp->mgold > u.ugold)
appr = -1;
/* random criterion for 'smell' or track finding ability
should use mtmp->msmell or sth
*/
if(msym == '@' ||
('a' <= msym && msym <= 'z')) {
extern coord *gettrack();
coord *cp;
schar mroom;
mroom = inroom(omx,omy);
if(mroom < 0 || mroom != inroom(u.ux,u.uy)){
cp = gettrack(omx,omy);
if(cp){
gx = cp->x;
gy = cp->y;
}
}
}
/* look for gold or jewels nearby */
likegold = (index("LOD", msym) != NULL);
likegems = (index("ODu", msym) != NULL);
likeobjs = mtmp->mhide;
#define SRCHRADIUS 25
{ xchar mind = SRCHRADIUS; /* not too far away */
int dd;
if(likegold){
struct gold *gold;
for(gold = fgold; gold; gold = gold->ngold)
if((dd = DIST(omx,omy,gold->gx,gold->gy)) < mind){
mind = dd;
gx = gold->gx;
gy = gold->gy;
}
}
if(likegems || likeobjs){
struct obj *otmp;
for(otmp = fobj; otmp; otmp = otmp->nobj)
if(likeobjs || otmp->olet == GEM_SYM)
if(msym != 'u' ||
objects[otmp->otyp].g_val != 0)
if((dd = DIST(omx,omy,otmp->ox,otmp->oy)) < mind){
mind = dd;
gx = otmp->ox;
gy = otmp->oy;
}
}
if(mind < SRCHRADIUS && appr == -1) {
if(dist(omx,omy) < 10) {
gx = u.ux;
gy = u.uy;
} else
appr = 1;
}
}
nix = omx;
niy = omy;
cnt = mfndpos(mtmp,poss,info,
msym == 'u' ? NOTONL :
(msym == '@' || msym == '1') ? (ALLOW_SSM | ALLOW_TRAPS) :
index(UNDEAD, msym) ? NOGARLIC : ALLOW_TRAPS);
/* ALLOW_ROCK for some monsters ? */
chcnt = 0;
chi = -1;
for(i=0; i<cnt; i++) {
nx = poss[i].x;
ny = poss[i].y;
for(j=0; j<MTSZ && j<cnt-1; j++)
if(nx == mtmp->mtrack[j].x && ny == mtmp->mtrack[j].y)
if(rn2(4*(cnt-j))) goto nxti;
#ifdef STUPID
/* some stupid compilers think that this is too complicated */
{ int d1 = DIST(nx,ny,gx,gy);
int d2 = DIST(nix,niy,gx,gy);
nearer = (d1 < d2);
}
#else
nearer = (DIST(nx,ny,gx,gy) < DIST(nix,niy,gx,gy));
#endif STUPID
if((appr == 1 && nearer) || (appr == -1 && !nearer) ||
!mmoved ||
(!appr && !rn2(++chcnt))){
nix = nx;
niy = ny;
chi = i;
mmoved = 1;
}
nxti: ;
}
if(mmoved){
if(info[chi] & ALLOW_M){
mtmp2 = m_at(nix,niy);
if(hitmm(mtmp,mtmp2) == 1 && rn2(4) &&
hitmm(mtmp2,mtmp) == 2) return(2);
return(0);
}
if(info[chi] & ALLOW_U){
(void) hitu(mtmp, d(mtmp->data->damn, mtmp->data->damd)+1);
return(0);
}
mtmp->mx = nix;
mtmp->my = niy;
for(j=MTSZ-1; j>0; j--) mtmp->mtrack[j] = mtmp->mtrack[j-1];
mtmp->mtrack[0].x = omx;
mtmp->mtrack[0].y = omy;
#ifndef NOWORM
if(mtmp->wormno) worm_move(mtmp);
#endif NOWORM
} else {
if(msym == 'u' && rn2(2)){
rloc(mtmp);
return(0);
}
#ifndef NOWORM
if(mtmp->wormno) worm_nomove(mtmp);
#endif NOWORM
}
postmov:
if(mmoved == 1) {
if(mintrap(mtmp) == 2) /* he died */
return(2);
if(likegold) mpickgold(mtmp);
if(likegems) mpickgems(mtmp);
if(mtmp->mhide) mtmp->mundetected = 1;
}
pmon(mtmp);
return(mmoved);
}
mpickgold(mtmp) struct monst *mtmp; {
struct gold *gold;
while(gold = g_at(mtmp->mx, mtmp->my)){
mtmp->mgold += gold->amount;
freegold(gold);
if(levl[mtmp->mx][mtmp->my].scrsym == '$')
newsym(mtmp->mx, mtmp->my);
}
}
mpickgems(mtmp) struct monst *mtmp; {
struct obj *otmp;
for(otmp = fobj; otmp; otmp = otmp->nobj)
if(otmp->olet == GEM_SYM)
if(otmp->ox == mtmp->mx && otmp->oy == mtmp->my)
if(mtmp->data->mlet != 'u' || objects[otmp->otyp].g_val != 0){
freeobj(otmp);
mpickobj(mtmp, otmp);
if(levl[mtmp->mx][mtmp->my].scrsym == GEM_SYM)
newsym(mtmp->mx, mtmp->my); /* %% */
return; /* pick only one object */
}
}
/* return number of acceptable neighbour positions */
mfndpos(mon,poss,info,flag)
struct monst *mon;
coord poss[9];
int info[9], flag;
{
int x,y,nx,ny,cnt = 0,ntyp;
struct monst *mtmp;
int nowtyp;
boolean pool;
x = mon->mx;
y = mon->my;
nowtyp = levl[x][y].typ;
pool = (mon->data->mlet == ';');
nexttry: /* eels prefer the water, but if there is no water nearby,
they will crawl over land */
if(mon->mconf) {
flag |= ALLOW_ALL;
flag &= ~NOTONL;
}
for(nx = x-1; nx <= x+1; nx++) for(ny = y-1; ny <= y+1; ny++)
if(nx != x || ny != y) if(isok(nx,ny))
if(!IS_ROCK(ntyp = levl[nx][ny].typ))
if(!(nx != x && ny != y && (nowtyp == DOOR || ntyp == DOOR)))
if((ntyp == POOL) == pool) {
info[cnt] = 0;
if(nx == u.ux && ny == u.uy){
if(!(flag & ALLOW_U)) continue;
info[cnt] = ALLOW_U;
} else if(mtmp = m_at(nx,ny)){
if(!(flag & ALLOW_M)) continue;
info[cnt] = ALLOW_M;
if(mtmp->mtame){
if(!(flag & ALLOW_TM)) continue;
info[cnt] |= ALLOW_TM;
}
}
if(sobj_at(CLOVE_OF_GARLIC, nx, ny)) {
if(flag & NOGARLIC) continue;
info[cnt] |= NOGARLIC;
}
if(sobj_at(SCR_SCARE_MONSTER, nx, ny) ||
(!mon->mpeaceful && sengr_at("Elbereth", nx, ny))) {
if(!(flag & ALLOW_SSM)) continue;
info[cnt] |= ALLOW_SSM;
}
if(sobj_at(ENORMOUS_ROCK, nx, ny)) {
if(!(flag & ALLOW_ROCK)) continue;
info[cnt] |= ALLOW_ROCK;
}
if(!Invis && online(nx,ny)){
if(flag & NOTONL) continue;
info[cnt] |= NOTONL;
}
/* we cannot avoid traps of an unknown kind */
{ struct trap *ttmp = t_at(nx, ny);
int tt;
if(ttmp) {
tt = 1 << ttmp->ttyp;
if(mon->mtrapseen & tt){
if(!(flag & tt)) continue;
info[cnt] |= tt;
}
}
}
poss[cnt].x = nx;
poss[cnt].y = ny;
cnt++;
}
if(!cnt && pool && nowtyp != POOL) {
pool = FALSE;
goto nexttry;
}
return(cnt);
}
dist(x,y) int x,y; {
return((x-u.ux)*(x-u.ux) + (y-u.uy)*(y-u.uy));
}
poisoned(string, pname)
char *string, *pname;
{
int i;
if(Blind) pline("It was poisoned.");
else pline("The %s was poisoned!",string);
if(Poison_resistance) {
pline("The poison doesn't seem to affect you.");
return;
}
i = rn2(10);
if(i == 0) {
u.uhp = -1;
pline("I am afraid the poison was deadly ...");
} else if(i <= 5) {
losestr(rn1(3,3));
} else {
losehp(rn1(10,6), pname);
}
if(u.uhp < 1) {
killer = pname;
done("died");
}
}
mondead(mtmp)
struct monst *mtmp;
{
relobj(mtmp,1);
unpmon(mtmp);
relmon(mtmp);
unstuck(mtmp);
if(mtmp->isshk) shkdead(mtmp);
if(mtmp->isgd) gddead();
#ifndef NOWORM
if(mtmp->wormno) wormdead(mtmp);
#endif NOWORM
monfree(mtmp);
}
/* called when monster is moved to larger structure */
replmon(mtmp,mtmp2)
struct monst *mtmp, *mtmp2;
{
relmon(mtmp);
monfree(mtmp);
mtmp2->nmon = fmon;
fmon = mtmp2;
if(u.ustuck == mtmp) u.ustuck = mtmp2;
if(mtmp2->isshk) replshk(mtmp,mtmp2);
if(mtmp2->isgd) replgd(mtmp,mtmp2);
}
relmon(mon)
struct monst *mon;
{
struct monst *mtmp;
if(mon == fmon) fmon = fmon->nmon;
else {
for(mtmp = fmon; mtmp->nmon != mon; mtmp = mtmp->nmon) ;
mtmp->nmon = mon->nmon;
}
}
/* we do not free monsters immediately, in order to have their name
available shortly after their demise */
struct monst *fdmon; /* chain of dead monsters, need not to be saved */
monfree(mtmp) struct monst *mtmp; {
mtmp->nmon = fdmon;
fdmon = mtmp;
}
dmonsfree(){
struct monst *mtmp;
while(mtmp = fdmon){
fdmon = mtmp->nmon;
free((char *) mtmp);
}
}
unstuck(mtmp)
struct monst *mtmp;
{
if(u.ustuck == mtmp) {
if(u.uswallow){
u.ux = mtmp->mx;
u.uy = mtmp->my;
u.uswallow = 0;
setsee();
docrt();
}
u.ustuck = 0;
}
}
killed(mtmp)
struct monst *mtmp;
{
#ifdef lint
#define NEW_SCORING
#endif lint
int tmp,tmp2,nk,x,y;
struct permonst *mdat;
extern long newuexp();
if(mtmp->cham) mtmp->data = PM_CHAMELEON;
mdat = mtmp->data;
if(Blind) pline("You destroy it!");
else {
pline("You destroy %s!",
mtmp->mtame ? amonnam(mtmp, "poor") : monnam(mtmp));
}
if(u.umconf) {
if(!Blind) pline("Your hands stop glowing blue.");
u.umconf = 0;
}
/* count killed monsters */
#define MAXMONNO 100
nk = 1; /* in case we cannot find it in mons */
tmp = mdat - mons; /* index in mons array (if not 'd', '@', ...) */
if(tmp >= 0 && tmp < CMNUM+2) {
extern char fut_geno[];
u.nr_killed[tmp]++;
if((nk = u.nr_killed[tmp]) > MAXMONNO &&
!index(fut_geno, mdat->mlet))
charcat(fut_geno, mdat->mlet);
}
/* punish bad behaviour */
if(mdat->mlet == '@') Telepat = 0, u.uluck -= 2;
if(mtmp->mpeaceful || mtmp->mtame) u.uluck--;
if(mdat->mlet == 'u') u.uluck -= 5;
if((int)u.uluck < LUCKMIN) u.uluck = LUCKMIN;
/* give experience points */
tmp = 1 + mdat->mlevel * mdat->mlevel;
if(mdat->ac < 3) tmp += 2*(7 - mdat->ac);
if(index("AcsSDXaeRTVWU&In:P", mdat->mlet))
tmp += 2*mdat->mlevel;
if(index("DeV&P",mdat->mlet)) tmp += (7*mdat->mlevel);
if(mdat->mlevel > 6) tmp += 50;
if(mdat->mlet == ';') tmp += 1000;
#ifdef NEW_SCORING
/* ------- recent addition: make nr of points decrease
when this is not the first of this kind */
{ int ul = u.ulevel;
int ml = mdat->mlevel;
if(ul < 14) /* points are given based on present and future level */
for(tmp2 = 0; !tmp2 || ul + tmp2 <= ml; tmp2++)
if(u.uexp + 1 + (tmp + ((tmp2 <= 0) ? 0 : 4<<(tmp2-1)))/nk
>= 10*pow((unsigned)(ul-1)))
if(++ul == 14) break;
tmp2 = ml - ul -1;
tmp = (tmp + ((tmp2 < 0) ? 0 : 4<<tmp2))/nk;
if(!tmp) tmp = 1;
}
/* note: ul is not necessarily the future value of u.ulevel */
/* ------- end of recent valuation change ------- */
#endif NEW_SCORING
more_experienced(tmp,0);
flags.botl = 1;
while(u.ulevel < 14 && u.uexp >= newuexp()){
pline("Welcome to experience level %u.", ++u.ulevel);
tmp = rnd(10);
if(tmp < 3) tmp = rnd(10);
u.uhpmax += tmp;
u.uhp += tmp;
flags.botl = 1;
}
/* dispose of monster and make cadaver */
x = mtmp->mx; y = mtmp->my;
mondead(mtmp);
tmp = mdat->mlet;
if(tmp == 'm') { /* he killed a minotaur, give him a wand of digging */
/* note: the dead minotaur will be on top of it! */
mksobj_at(WAN_DIGGING, x, y);
/* if(cansee(x,y)) atl(x,y,fobj->olet); */
stackobj(fobj);
} else
#ifndef NOWORM
if(tmp == 'w') {
mksobj_at(WORM_TOOTH, x, y);
stackobj(fobj);
} else
#endif NOWORM
if(!letter(tmp) || (!index("mw", tmp) && !rn2(3))) tmp = 0;
if(ACCESSIBLE(levl[x][y].typ)) /* might be mimic in wall or dead eel*/
if(x != u.ux || y != u.uy) /* might be here after swallowed */
if(index("NTVm&",mdat->mlet) || rn2(5)) {
struct obj *obj2 = mkobj_at(tmp,x,y);
if(cansee(x,y))
atl(x,y,obj2->olet);
stackobj(obj2);
}
}
kludge(str,arg)
char *str,*arg;
{
if(Blind) {
if(*str == '%') pline(str,"It");
else pline(str,"it");
} else pline(str,arg);
}
rescham() /* force all chameleons to become normal */
{
struct monst *mtmp;
for(mtmp = fmon; mtmp; mtmp = mtmp->nmon)
if(mtmp->cham) {
mtmp->cham = 0;
(void) newcham(mtmp, PM_CHAMELEON);
}
}
newcham(mtmp,mdat) /* make a chameleon look like a new monster */
/* returns 1 if the monster actually changed */
struct monst *mtmp;
struct permonst *mdat;
{
int mhp, hpn, hpd;
if(mdat == mtmp->data) return(0); /* still the same monster */
#ifndef NOWORM
if(mtmp->wormno) wormdead(mtmp); /* throw tail away */
#endif NOWORM
if (u.ustuck == mtmp) {
if (u.uswallow) {
u.uswallow = 0;
u.uswldtim = 0;
mnexto (mtmp);
docrt ();
prme ();
}
u.ustuck = 0;
}
hpn = mtmp->mhp;
hpd = (mtmp->data->mlevel)*8;
if(!hpd) 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->mhpmax;
mtmp->mhpmax = 2 + (hpn*mhp)/hpd;
mtmp->minvis = (mdat->mlet == 'I') ? 1 : 0;
#ifndef NOWORM
if(mdat->mlet == 'w' && getwn(mtmp)) initworm(mtmp);
/* perhaps we should clear mtmp->mtame here? */
#endif NOWORM
unpmon(mtmp); /* necessary for 'I' and to force pmon */
pmon(mtmp);
return(1);
}
mnexto(mtmp) /* Make monster mtmp next to you (if possible) */
struct monst *mtmp;
{
extern coord enexto();
coord mm;
mm = enexto(u.ux, u.uy);
mtmp->mx = mm.x;
mtmp->my = mm.y;
pmon(mtmp);
}
ishuman(mtmp) struct monst *mtmp; {
return(mtmp->data->mlet == '@');
}
setmangry(mtmp) struct monst *mtmp; {
if(!mtmp->mpeaceful) return;
if(mtmp->mtame) return;
mtmp->mpeaceful = 0;
if(ishuman(mtmp)) pline("%s gets angry!", Monnam(mtmp));
}
/* not one hundred procent correct: now a snake may hide under an
invisible object */
canseemon(mtmp)
struct monst *mtmp;
{
return((!mtmp->minvis || See_invisible)
&& (!mtmp->mhide || !o_at(mtmp->mx,mtmp->my))
&& cansee(mtmp->mx, mtmp->my));
}
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