/* 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);
}
int m_move(struct monst *mtmp, int after)
{
struct monst *mtmp2;
int nx = 0;
int ny = 0;
int omx;
int omy;
int appr;
int nearer;
int cnt;
int i;
int j;
xchar gx;
xchar gy;
xchar nix;
xchar niy;
xchar chcnt;
schar chi;
boolean likegold = 0;
boolean likegems = 0;
boolean likeobjs = 0;
/* Not strictly necessary: chi >= 0 will do */
schar mmoved = 0;
coord poss[9];
int info[9];
if(mtmp->mtrapped != 0) {
i = mintrap(mtmp);
if(i == 2) {
/* He died */
return 2;
}
if(i == 1) {
/* Still in trap so didn't move */
return 0;
}
}
if((mtmp->mhide != 0)
&& (o_at(mtmp->mx, mtmp->my) != NULL)
&& (rn2(10) != 0)) {
/* Do not leave hiding place */
return 0;
}
/* My dog gets a special treatment */
if(mtmp->mtame != 0) {
return dog_move(mtmp, after);
}
/* Likewise for shopkeeper */
if(mtmp->isshk != 0) {
mmoved = shk_move();
if(mmoved == 1) {
if(mintrap(mtmp) == 2) {
/* He died */
return 2;
}
if(likegold != 0) {
mpickgold(mtmp);
}
if(likegems != 0) {
mpickgems(mtmp);
}
if(mtmp->mhide != 0) {
mtmp->mundetected = 1;
}
}
return mmoved;
}
/* And for the guard */
if(mtmp->isgd != 0) {
mmoved = gd_move();
if(mmoved == 1) {
if(mintrap(mtmp) == 2) {
/* He died */
return 2;
}
if(likegold != 0) {
mpickgold(mtmp);
}
if(likegems != 0) {
mpickgems(mtmp);
}
if(mtmp->mhide != 0) {
mtmp->mundetected = 1;
}
}
return mmoved;
}
if((mtmp->data->mlet == 't') && (rn2(5) == 0)) {
if(rn2(2) != 0) {
mnexto(mtmp);
}
else {
rloc(mtmp);
}
mmoved = 1;
if(mmoved == 1) {
if(mintrap(mtmp) == 2) {
/* He died */
return 2;
}
if(likegold != 0) {
mpickgold(mtmp);
}
if(likegems != 0) {
mpickgems(mtmp);
}
if(mtmp->mhide != 0) {
mtmp->mundetected = 1;
}
}
return mmoved;
}
if((mtmp->data->mlet == 'D') && (mtmp->mcan == 0)) {
inrange(mtmp);
}
if((Blind == 0)
&& (Confusion == 0)
&& (mtmp->data->mlet == 'U')
&& (mtmp->mcan == 0)
&& (cansee(mtmp->mx, mtmp->my) != 0)
&& (rn2(5) != 0)) {
pline("%s's gaze has confused you!", Monnam(mtmp));
if(rn2(5) != 0) {
mtmp->mcan = 1;
}
/* Timeout */
Confusion = d(3, 4);
}
if((mtmp->mflee == 0) && (u.uswallow != 0) && (u.ustuck != mtmp)) {
return 1;
}
appr = 1;
if(mtmp->mflee != 0) {
appr = -1;
}
if((mtmp->mconf != 0)
|| (Invis != 0)
|| (mtmp->mcansee == 0)
|| ((index("Biy", mtmp->data->mlet) != 0) && (rn2(3) == 0))) {
appr = 0;
}
omx = mtmp->mx;
omy = mtmp->my;
gx = u.ux;
gy = u.uy;
if((mtmp->data->mlet == 'L') && (appr == 1) && (mtmp->mgold > u.ugold)) {
appr = -1;
}
#ifdef TRACK
/*
* Random criterion for 'smell'
* should use mtmp->msmell
*/
if(('a' <= mtmp->data->mlet) && (mtmp->data->mlet <= 'z')) {
coord *cp;
schar mroom;
mroom = inroom(omx, omy);
if((mroom < 0) || (mroom != inroom(u.ux, u.uy))) {
cp = gettrack(omx, omy);
if(cp != 0) {
gx = cp->x;
gy = cp->y;
}
}
}
#endif
/* Look for gold or jewels nearby */
if(index("LOD", mtmp->data->mlet) != NULL) {
likegold = 1;
}
else {
likegold = 0;
}
if(index("ODu", mtmp->data->mlet) != NULL) {
likegems = 1;
}
else {
likegems = 0;
}
likeobjs = mtmp->mhide;
#define SRCHRADIUS 25
/* Not too far away */
xchar mind = SRCHRADIUS;
int dd;
if(likegold != 0) {
struct gen *gold;
for(gold = fgold; gold != NULL; gold = gold->ngen) {
dd = DIST(omx, omy, gold->gx, gold->gy);
if(dd < mind) {
mind = dd;
gx = gold->gx;
gy = gold->gy;
}
}
}
if((likegems != 0) || (likeobjs != 0)) {
struct obj *otmp;
for(otmp = fobj; otmp != NULL; otmp = otmp->nobj) {
if((likeobjs != 0) || (otmp->olet == GEM_SYM)) {
if((mtmp->data->mlet != 'u')
|| (objects[otmp->otyp].g_val != 0)) {
dd = DIST(omx, omy, otmp->ox, otmp->oy);
if(dd < 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;
if(mtmp->data->mlet == 'u') {
cnt = mfndpos(mtmp, poss, info, NOTONL);
}
else {
if(index(" VWZ", mtmp->data->mlet) != 0) {
cnt = mfndpos(mtmp, poss, info, NOGARLIC);
}
else {
cnt = mfndpos(mtmp, poss, info, ALLOW_TRAPS);
}
}
/* ALLOW_ROCK for some monsters? */
chcnt = 0;
chi = -1;
for(i = 0; i < cnt; ++i) {
nx = poss[i].x;
nx = 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)) == 0) {
#ifdef STUPID
/* Some stupid compilers thing that is is too complicated */
int d1 = DIST(nx, ny, gx, gy);
int d2 = DIST(nix, niy, gx, gy);
if(d1 < d2) {
nearer = 1;
}
else {
nearer = 0;
}
#else
if(DIST(nx, ny, gx, gy) < DIST(nix, niy, gx, gy)) {
nearer = 1;
}
else {
nearer = 0;
}
#endif
if(((appr == 1) && (nearer != 0))
|| ((appr == -1) && (nearer == 0))
|| (mmoved == 0)) {
nix = nx;
niy = ny;
chi = i;
mmoved = 1;
}
else {
if(appr == 0) {
if(rn2(chcnt) == 0) {
++chcnt;
nix = nx;
niy = ny;
chi = i;
mmoved = 1;
}
else {
++chcnt;
}
}
}
}
}
}
}
if(mmoved != 0) {
if((info[(int)chi] & ALLOW_M) != 0) {
mtmp2 = m_at(nix, niy);
if((hitmm(mtmp, mtmp2) == 1)
&& (rn2(4) != 0)
&& (hitmm(mtmp2, mtmp) == 2)) {
return 2;
}
return 0;
}
if((info[(int)chi] & ALLOW_U) != 0) {
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 != 0) {
worm_move(mtmp);
}
#endif
}
else {
if((mtmp->data->mlet == 'u') && (rn2(2) != 0)) {
rloc(mtmp);
return 0;
}
#ifndef NOWORM
if(mtmp->wormno != 0) {
worm_nomove(mtmp);
}
#endif
}
if(mmoved == 1) {
if(mintrap(mtmp) == 2) {
/* He died */
return 2;
}
if(likegold != 0) {
mpickgold(mtmp);
}
if(likegems != 0) {
mpickgems(mtmp);
}
if(mtmp->mhide != 0) {
mtmp->mundetected = 1;
}
}
pmon(mtmp);
return mmoved;
}
