int
tamedog(struct monst *mtmp, struct obj *obj)
{
struct monst *mtmp2;
if(flags.moonphase == FULL_MOON && night() && rn2(6))
return(0);
/* If we cannot tame him, at least he's no longer afraid. */
mtmp->mflee = 0;
mtmp->mfleetim = 0;
if(mtmp->mtame || mtmp->mfroz ||
#ifndef NOWORM
mtmp->wormno ||
#endif /* NOWORM */
mtmp->isshk || mtmp->isgd || strchr(" &@12", mtmp->data->mlet))
return(0); /* no tame long worms? */
if(obj) {
if(dogfood(obj) >= MANFOOD) return(0);
if(cansee(mtmp->mx,mtmp->my)){
pline("%s devours the %s.", Monnam(mtmp),
objects[obj->otyp].oc_name);
}
obfree(obj, (struct obj *) 0);
}
mtmp2 = newmonst(sizeof(struct edog) + mtmp->mnamelth);
*mtmp2 = *mtmp;
mtmp2->mxlth = sizeof(struct edog);
if(mtmp->mnamelth)
(void) strlcpy(NAME(mtmp2), NAME(mtmp), mtmp2->mnamelth);
initedog(mtmp2);
replmon(mtmp,mtmp2);
return(1);
}
/*
* See if a monst could use this item in an offensive or defensive capacity.
*/
boolean
could_use_item(struct monst *mtmp, struct obj *otmp)
{
boolean can_use =
/* make sure this is an intelligent monster */
(mtmp && !is_animal(mtmp->data) && !mindless(mtmp->data) &&
!nohands(mtmp->data) && otmp &&
/* food */
((dogfood(mtmp, otmp) < APPORT) ||
/* better weapons */
(attacktype(mtmp->data, AT_WEAP) &&
(otmp->oclass == WEAPON_CLASS || is_weptool(otmp)) &&
(would_prefer_hwep(mtmp, otmp) || would_prefer_rwep(mtmp, otmp))) ||
/* better armor */
(otmp->oclass == ARMOR_CLASS && is_better_armor(mtmp, otmp)) ||
/* useful amulets */
otmp->otyp == AMULET_OF_LIFE_SAVING ||
otmp->otyp == AMULET_OF_REFLECTION ||
/* misc magic items that muse can use */
otmp->otyp == SCR_TELEPORTATION || otmp->otyp == SCR_EARTH ||
otmp->otyp == SCR_REMOVE_CURSE || otmp->otyp == WAN_DEATH ||
otmp->otyp == WAN_DIGGING || otmp->otyp == WAN_FIRE ||
otmp->otyp == WAN_COLD || otmp->otyp == WAN_LIGHTNING ||
otmp->otyp == WAN_MAGIC_MISSILE || otmp->otyp == WAN_STRIKING ||
otmp->otyp == WAN_TELEPORTATION || otmp->otyp == POT_HEALING ||
otmp->otyp == POT_EXTRA_HEALING || otmp->otyp == POT_FULL_HEALING ||
otmp->otyp == POT_PARALYSIS || otmp->otyp == POT_BLINDNESS ||
otmp->otyp == POT_CONFUSION || otmp->otyp == POT_ACID ||
otmp->otyp == FROST_HORN || otmp->otyp == FIRE_HORN ||
otmp->otyp == UNICORN_HORN));
if (can_use) {
/* arbitrary - greedy monsters keep any item you can use */
if (likes_gold(mtmp->data))
return TRUE;
if (otmp->oclass == ARMOR_CLASS) {
return !is_better_armor(&youmonst, otmp);
} else if (otmp->oclass == WAND_CLASS && otmp->spe <= 0)
return FALSE; /* used charges or was cancelled? */
else {
/* Check if you've got one. If you don't, don't hoard it. */
register struct obj *otmp2;
for (otmp2 = invent; otmp2; otmp2 = otmp2->nobj)
if (otmp->otyp == otmp2->otyp)
return TRUE;
}
}
return FALSE;
}
/* return 0 (no move), 1 (move) or 2 (dead) */
int
dog_move(struct monst *mtmp, int after)
{
int nx, ny, omx, omy, appr, nearer, j;
int udist, chi, i, whappr;
struct monst *mtmp2;
struct permonst *mdat = mtmp->data;
struct edog *edog = EDOG(mtmp);
struct obj *obj;
struct trap *trap;
xchar cnt, chcnt, nix, niy;
schar dogroom, uroom;
xchar gx, gy, gtyp, otyp; /* current goal */
coord poss[9];
int info[9];
#define GDIST(x,y) ((x-gx)*(x-gx) + (y-gy)*(y-gy))
#define DDIST(x,y) ((x-omx)*(x-omx) + (y-omy)*(y-omy))
if(moves <= edog->eattime) return(0); /* dog is still eating */
omx = mtmp->mx;
omy = mtmp->my;
whappr = (moves - EDOG(mtmp)->whistletime < 5);
if(moves > edog->hungrytime + 500 && !mtmp->mconf){
mtmp->mconf = 1;
mtmp->mhpmax /= 3;
if(mtmp->mhp > mtmp->mhpmax)
mtmp->mhp = mtmp->mhpmax;
if(cansee(omx,omy))
pline("%s is confused from hunger.", Monnam(mtmp));
else pline("You feel worried about %s.", monnam(mtmp));
} else
if(moves > edog->hungrytime + 750 || mtmp->mhp < 1){
if(cansee(omx,omy))
pline("%s dies from hunger.", Monnam(mtmp));
else
pline("You have a sad feeling for a moment, then it passes.");
mondied(mtmp);
return(2);
}
dogroom = inroom(omx,omy);
uroom = inroom(u.ux,u.uy);
udist = dist(omx,omy);
/* maybe we tamed him while being swallowed --jgm */
if(!udist) return(0);
/* if we are carrying sth then we drop it (perhaps near @) */
/* Note: if apport == 1 then our behaviour is independent of udist */
if(mtmp->minvent){
if(!rn2(udist) || !rn2((int) edog->apport))
if(rn2(10) < edog->apport){
relobj(mtmp, (int) mtmp->minvis);
if(edog->apport > 1) edog->apport--;
edog->dropdist = udist; /* hpscdi!jon */
edog->droptime = moves;
}
} else {
if ((obj = o_at(omx,omy)))
if(!strchr("0_", obj->olet)){
if((otyp = dogfood(obj)) <= CADAVER){
nix = omx;
niy = omy;
goto eatobj;
}
if (obj->owt < 10*mtmp->data->mlevel)
if (rn2(20) < edog->apport+3)
if (rn2(udist) || !rn2((int) edog->apport)){
freeobj(obj);
unpobj(obj);
/* if(levl[omx][omy].scrsym == obj->olet)
newsym(omx,omy); */
mpickobj(mtmp,obj);
}
}
}
/* first we look for food */
gtyp = UNDEF; /* no goal as yet */
gx = gy = 0;
for(obj = fobj; obj; obj = obj->nobj) {
otyp = dogfood(obj);
if(otyp > gtyp || otyp == UNDEF) continue;
if(inroom(obj->ox,obj->oy) != dogroom) continue;
if(otyp < MANFOOD &&
(dogroom >= 0 || DDIST(obj->ox,obj->oy) < 10)) {
if(otyp < gtyp || (otyp == gtyp &&
DDIST(obj->ox,obj->oy) < DDIST(gx,gy))){
gx = obj->ox;
gy = obj->oy;
gtyp = otyp;
}
} else
if(gtyp == UNDEF && dogroom >= 0 &&
uroom == dogroom &&
!mtmp->minvent && edog->apport > rn2(8)){
gx = obj->ox;
gy = obj->oy;
gtyp = APPORT;
}
}
if(gtyp == UNDEF ||
(gtyp != DOGFOOD && gtyp != APPORT && moves < edog->hungrytime)){
if(dogroom < 0 || dogroom == uroom){
gx = u.ux;
gy = u.uy;
#ifndef QUEST
} else {
int tmp = rooms[(int)dogroom].fdoor;
cnt = rooms[(int)dogroom].doorct;
gx = gy = FAR; /* random, far away */
while(cnt--){
if(dist(gx,gy) >
dist(doors[tmp].x, doors[tmp].y)){
gx = doors[tmp].x;
gy = doors[tmp].y;
}
tmp++;
}
/* here gx == FAR e.g. when dog is in a vault */
if(gx == FAR || (gx == omx && gy == omy)){
gx = u.ux;
gy = u.uy;
}
#endif /* QUEST */
}
appr = (udist >= 9) ? 1 : (mtmp->mflee) ? -1 : 0;
if(after && udist <= 4 && gx == u.ux && gy == u.uy)
return(0);
if(udist > 1){
if (!IS_ROOM(levl[(int)u.ux][(int)u.uy].typ) || !rn2(4) ||
whappr ||
(mtmp->minvent && rn2((int) edog->apport)))
appr = 1;
}
/* if you have dog food he'll follow you more closely */
if (appr == 0) {
obj = invent;
while(obj){
if(obj->otyp == TRIPE_RATION){
appr = 1;
break;
}
obj = obj->nobj;
}
}
} else appr = 1; /* gtyp != UNDEF */
if(mtmp->mconf) appr = 0;
if(gx == u.ux && gy == u.uy && (dogroom != uroom || dogroom < 0)){
coord *cp;
cp = gettrack(omx,omy);
if(cp){
gx = cp->x;
gy = cp->y;
}
}
nix = omx;
niy = omy;
cnt = mfndpos(mtmp,poss,info,ALLOW_M | ALLOW_TRAPS);
chcnt = 0;
chi = -1;
for(i=0; i<cnt; i++){
nx = poss[i].x;
ny = poss[i].y;
if(info[i] & ALLOW_M){
mtmp2 = m_at(nx,ny);
if(mtmp2->data->mlevel >= mdat->mlevel+2 ||
mtmp2->data->mlet == 'c')
continue;
if(after) return(0); /* hit only once each move */
if(hitmm(mtmp, mtmp2) == 1 && rn2(4) &&
mtmp2->mlstmv != moves &&
hitmm(mtmp2,mtmp) == 2) return(2);
return(0);
}
/* dog avoids traps */
/* but perhaps we have to pass a trap in order to follow @ */
if((info[i] & ALLOW_TRAPS) && (trap = t_at(nx,ny))){
if(!trap->tseen && rn2(40)) continue;
if(rn2(10)) continue;
}
/* dog eschewes cursed objects */
/* but likes dog food */
obj = fobj;
while(obj){
if(obj->ox != nx || obj->oy != ny)
goto nextobj;
if(obj->cursed) goto nxti;
if(obj->olet == FOOD_SYM &&
(otyp = dogfood(obj)) < MANFOOD &&
(otyp < ACCFOOD || edog->hungrytime <= moves)){
/* Note: our dog likes the food so much that he
might eat it even when it conceals a cursed object */
nix = nx;
niy = ny;
chi = i;
eatobj:
edog->eattime =
moves + obj->quan * objects[obj->otyp].oc_delay;
if(edog->hungrytime < moves)
edog->hungrytime = moves;
edog->hungrytime +=
5*obj->quan * objects[obj->otyp].nutrition;
mtmp->mconf = 0;
if(cansee(nix,niy))
pline("%s ate %s.", Monnam(mtmp), doname(obj));
/* perhaps this was a reward */
if(otyp != CADAVER)
edog->apport += 200/(edog->dropdist+moves-edog->droptime);
delobj(obj);
goto newdogpos;
}
nextobj:
obj = obj->nobj;
}
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;
/* Some stupid C compilers cannot compute the whole expression at once. */
nearer = GDIST(nx,ny);
nearer -= GDIST(nix,niy);
nearer *= appr;
if((nearer == 0 && !rn2(++chcnt)) || nearer<0 ||
(nearer > 0 && !whappr &&
((omx == nix && omy == niy && !rn2(3))
|| !rn2(12))
)){
nix = nx;
niy = ny;
if(nearer < 0) chcnt = 0;
chi = i;
}
nxti: ;
}
newdogpos:
if(nix != omx || niy != omy){
if(info[chi] & ALLOW_U){
(void) hitu(mtmp, d(mdat->damn, mdat->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;
}
if(mintrap(mtmp) == 2) /* he died */
return(2);
pmon(mtmp);
return(1);
}
struct monst *
tamedog(struct monst *mtmp, struct obj *obj)
{
struct monst *mtmp2;
/* The Wiz, Medusa and the quest nemeses aren't even made peaceful. */
if (mtmp->iswiz || mtmp->data == &mons[PM_MEDUSA]
|| (mtmp->data->mflags3 & M3_WANTSARTI))
return NULL;
/* worst case, at least it'll be peaceful; this uses the main RNG because
realtime effects means that this won't really sync anyway; this also
calls set_malign (thus there's no need for the caller to call it after
calling tamedog()) */
msethostility(mtmp, FALSE, TRUE);
if (flags.moonphase == FULL_MOON && night() && rn2(6) && obj &&
mtmp->data->mlet == S_DOG)
return NULL;
/* If we cannot tame it, at least it's no longer afraid. */
mtmp->mflee = 0;
mtmp->mfleetim = 0;
/* make grabber let go now, whether it becomes tame or not */
if (mtmp == u.ustuck) {
if (Engulfed)
expels(mtmp, mtmp->data, TRUE);
else if (!(Upolyd && sticks(youmonst.data)))
unstuck(mtmp);
}
/* feeding it treats makes it tamer */
if (mtmp->mtame && obj) {
int tasty;
if (mtmp->mcanmove && !mtmp->mconf && !mtmp->meating &&
((tasty = dogfood(mtmp, obj)) == DOGFOOD ||
(tasty <= ACCFOOD && CONST_EDOG(mtmp)->hungrytime <= moves))) {
/* pet will "catch" and eat this thrown food */
if (canseemon(mtmp)) {
boolean big_corpse = (obj->otyp == CORPSE &&
obj->corpsenm >= LOW_PM &&
mons[obj->corpsenm].msize >
mtmp->data->msize);
pline("%s catches %s%s", Monnam(mtmp), the(xname(obj)),
!big_corpse ? "." : ", or vice versa!");
} else if (cansee(mtmp->mx, mtmp->my))
pline("%s.", Tobjnam(obj, "stop"));
/* dog_eat expects a floor object */
place_object(obj, level, mtmp->mx, mtmp->my);
dog_eat(mtmp, obj, mtmp->mx, mtmp->my, FALSE);
/* eating might have killed it, but that doesn't matter here; a
non-null result suppresses "miss" message for thrown food and
also implies that the object has been deleted */
return mtmp;
} else
return NULL;
}
if (mtmp->mtame || !mtmp->mcanmove ||
/* monsters with conflicting structures cannot be tamed */
mtmp->isshk || mtmp->isgd || mtmp->ispriest || mtmp->isminion ||
is_covetous(mtmp->data) || is_human(mtmp->data) ||
(is_demon(mtmp->data) && !is_demon(youmonst.data)) ||
(obj && dogfood(mtmp, obj) >= MANFOOD))
return NULL;
if (mtmp->m_id == u.quest_status.leader_m_id)
return NULL;
/* make a new monster which has the pet extension */
mtmp2 = newmonst(MX_EDOG, mtmp->mnamelth);
*mtmp2 = *mtmp;
mtmp2->mxtyp = MX_EDOG;
mtmp2->mxlth = sizeof (struct edog);
if (mtmp->mnamelth)
strcpy(NAME_MUTABLE(mtmp2), NAME(mtmp));
initedog(mtmp2);
replmon(mtmp, mtmp2);
/* `mtmp' is now obsolete */
if (obj) { /* thrown food */
/* defer eating until the edog extension has been set up */
place_object(obj, level, mtmp2->mx, mtmp2->my); /* put on floor */
/* devour the food (might grow into larger, genocided monster) */
if (dog_eat(mtmp2, obj, mtmp2->mx, mtmp2->my, TRUE) == 2)
return mtmp2; /* oops, it died... */
/* `obj' is now obsolete */
}
if (mtmp2->dlevel == level)
newsym(mtmp2->mx, mtmp2->my);
if (attacktype(mtmp2->data, AT_WEAP)) {
mtmp2->weapon_check = NEED_HTH_WEAPON;
mon_wield_item(mtmp2);
}
return mtmp2;
}
