1 /* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
2 /* hack.dog.c - version 1.0.3 */
5 #include "hack.mfndpos.h"
6 extern struct monst *makemon();
8 #include "def.mkroom.h"
10 struct permonst li_dog =
11 { "little dog", 'd',2,18,6,1,6,sizeof(struct edog) };
13 { "dog", 'd',4,16,5,1,6,sizeof(struct edog) };
14 struct permonst la_dog =
15 { "large dog", 'd',6,15,4,2,4,sizeof(struct edog) };
19 register struct monst *mtmp = makemon(&li_dog,u.ux,u.uy);
20 if(!mtmp) return; /* dogs were genocided */
24 initedog(mtmp) register struct monst *mtmp; {
25 mtmp->mtame = mtmp->mpeaceful = 1;
26 EDOG(mtmp)->hungrytime = 1000 + moves;
27 EDOG(mtmp)->eattime = 0;
28 EDOG(mtmp)->droptime = 0;
29 EDOG(mtmp)->dropdist = 10000;
30 EDOG(mtmp)->apport = 10;
31 EDOG(mtmp)->whistletime = 0;
34 /* attach the monsters that went down (or up) together with @ */
35 struct monst *mydogs = 0;
36 struct monst *fallen_down = 0; /* monsters that fell through a trapdoor */
37 /* they will appear on the next level @ goes to, even if he goes up! */
40 register struct monst *mtmp;
47 while(mtmp = fallen_down){
48 fallen_down = mtmp->nmon;
56 register struct monst *mtmp;
57 for(mtmp = fmon; mtmp; mtmp = mtmp->nmon)
58 if(dist(mtmp->mx,mtmp->my) < 3 && follower(mtmp)
59 && !mtmp->msleep && !mtmp->mfroz) {
64 keepdogs(); /* we destroyed the link, so use recursion */
65 return; /* (admittedly somewhat primitive) */
69 fall_down(mtmp) register struct monst *mtmp; {
71 mtmp->nmon = fallen_down;
77 /* return quality of food; the lower the better */
85 dogfood(obj) register struct obj *obj; {
89 (obj->otyp == TRIPE_RATION) ? DOGFOOD :
90 (obj->otyp < CARROT) ? ACCFOOD :
91 (obj->otyp < CORPSE) ? MANFOOD :
92 (poisonous(obj) || obj->age + 50 <= moves ||
93 obj->otyp == DEAD_COCKATRICE)
97 if(!obj->cursed) return(APPORT);
98 /* fall into next case */
106 /* return 0 (no move), 1 (move) or 2 (dead) */
107 dog_move(mtmp, after) register struct monst *mtmp; {
108 register int nx,ny,omx,omy,appr,nearer,j;
109 int udist,chi,i,whappr;
110 register struct monst *mtmp2;
111 register struct permonst *mdat = mtmp->data;
112 register struct edog *edog = EDOG(mtmp);
115 xchar cnt,chcnt,nix,niy;
117 xchar gx,gy,gtyp,otyp; /* current goal */
120 #define GDIST(x,y) ((x-gx)*(x-gx) + (y-gy)*(y-gy))
121 #define DDIST(x,y) ((x-omx)*(x-omx) + (y-omy)*(y-omy))
123 if(moves <= edog->eattime) return(0); /* dog is still eating */
126 whappr = (moves - EDOG(mtmp)->whistletime < 5);
127 if(moves > edog->hungrytime + 500 && !mtmp->mconf){
130 if(mtmp->mhp > mtmp->mhpmax)
131 mtmp->mhp = mtmp->mhpmax;
133 pline("%s is confused from hunger.", Monnam(mtmp));
134 else pline("You feel worried about %s.", monnam(mtmp));
136 if(moves > edog->hungrytime + 750 || mtmp->mhp < 1){
138 pline("%s dies from hunger.", Monnam(mtmp));
140 pline("You have a sad feeling for a moment, then it passes.");
144 dogroom = inroom(omx,omy);
145 uroom = inroom(u.ux,u.uy);
146 udist = dist(omx,omy);
148 /* maybe we tamed him while being swallowed --jgm */
149 if(!udist) return(0);
151 /* if we are carrying sth then we drop it (perhaps near @) */
152 /* Note: if apport == 1 then our behaviour is independent of udist */
154 if(!rn2(udist) || !rn2((int) edog->apport))
155 if(rn2(10) < edog->apport){
156 relobj(mtmp, (int) mtmp->minvis);
157 if(edog->apport > 1) edog->apport--;
158 edog->dropdist = udist; /* hpscdi!jon */
159 edog->droptime = moves;
162 if(obj = o_at(omx,omy)) if(!index("0_", obj->olet)){
163 if((otyp = dogfood(obj)) <= CADAVER){
168 if(obj->owt < 10*mtmp->data->mlevel)
169 if(rn2(20) < edog->apport+3)
170 if(rn2(udist) || !rn2((int) edog->apport)){
173 /* if(levl[omx][omy].scrsym == obj->olet)
180 /* first we look for food */
181 gtyp = UNDEF; /* no goal as yet */
183 gx = gy = 0; /* suppress 'used before set' message */
185 for(obj = fobj; obj; obj = obj->nobj) {
187 if(otyp > gtyp || otyp == UNDEF) continue;
188 if(inroom(obj->ox,obj->oy) != dogroom) continue;
190 (dogroom >= 0 || DDIST(obj->ox,obj->oy) < 10)) {
191 if(otyp < gtyp || (otyp == gtyp &&
192 DDIST(obj->ox,obj->oy) < DDIST(gx,gy))){
198 if(gtyp == UNDEF && dogroom >= 0 &&
200 !mtmp->minvent && edog->apport > rn2(8)){
207 (gtyp != DOGFOOD && gtyp != APPORT && moves < edog->hungrytime)){
208 if(dogroom < 0 || dogroom == uroom){
213 int tmp = rooms[dogroom].fdoor;
214 cnt = rooms[dogroom].doorct;
216 gx = gy = FAR; /* random, far away */
219 dist(doors[tmp].x, doors[tmp].y)){
225 /* here gx == FAR e.g. when dog is in a vault */
226 if(gx == FAR || (gx == omx && gy == omy)){
232 appr = (udist >= 9) ? 1 : (mtmp->mflee) ? -1 : 0;
233 if(after && udist <= 4 && gx == u.ux && gy == u.uy)
236 if(!IS_ROOM(levl[u.ux][u.uy].typ) || !rn2(4) ||
238 (mtmp->minvent && rn2((int) edog->apport)))
241 /* if you have dog food he'll follow you more closely */
245 if(obj->otyp == TRIPE_RATION){
252 } else appr = 1; /* gtyp != UNDEF */
253 if(mtmp->mconf) appr = 0;
255 if(gx == u.ux && gy == u.uy && (dogroom != uroom || dogroom < 0)){
256 extern coord *gettrack();
258 cp = gettrack(omx,omy);
267 cnt = mfndpos(mtmp,poss,info,ALLOW_M | ALLOW_TRAPS);
270 for(i=0; i<cnt; i++){
273 if(info[i] & ALLOW_M){
275 if(mtmp2->data->mlevel >= mdat->mlevel+2 ||
276 mtmp2->data->mlet == 'c')
278 if(after) return(0); /* hit only once each move */
280 if(hitmm(mtmp, mtmp2) == 1 && rn2(4) &&
281 mtmp2->mlstmv != moves &&
282 hitmm(mtmp2,mtmp) == 2) return(2);
286 /* dog avoids traps */
287 /* but perhaps we have to pass a trap in order to follow @ */
288 if((info[i] & ALLOW_TRAPS) && (trap = t_at(nx,ny))){
289 if(!trap->tseen && rn2(40)) continue;
290 if(rn2(10)) continue;
293 /* dog eschewes cursed objects */
294 /* but likes dog food */
297 if(obj->ox != nx || obj->oy != ny)
299 if(obj->cursed) goto nxti;
300 if(obj->olet == FOOD_SYM &&
301 (otyp = dogfood(obj)) < MANFOOD &&
302 (otyp < ACCFOOD || edog->hungrytime <= moves)){
303 /* Note: our dog likes the food so much that he
304 might eat it even when it conceals a cursed object */
310 moves + obj->quan * objects[obj->otyp].oc_delay;
311 if(edog->hungrytime < moves)
312 edog->hungrytime = moves;
314 5*obj->quan * objects[obj->otyp].nutrition;
317 pline("%s ate %s.", Monnam(mtmp), doname(obj));
318 /* perhaps this was a reward */
320 edog->apport += 200/(edog->dropdist+moves-edog->droptime);
328 for(j=0; j<MTSZ && j<cnt-1; j++)
329 if(nx == mtmp->mtrack[j].x && ny == mtmp->mtrack[j].y)
330 if(rn2(4*(cnt-j))) goto nxti;
332 /* Some stupid C compilers cannot compute the whole expression at once. */
333 nearer = GDIST(nx,ny);
334 nearer -= GDIST(nix,niy);
336 if((nearer == 0 && !rn2(++chcnt)) || nearer<0 ||
337 (nearer > 0 && !whappr &&
338 ((omx == nix && omy == niy && !rn2(3))
343 if(nearer < 0) chcnt = 0;
349 if(nix != omx || niy != omy){
350 if(info[chi] & ALLOW_U){
351 (void) hitu(mtmp, d(mdat->damn, mdat->damd)+1);
356 for(j=MTSZ-1; j>0; j--) mtmp->mtrack[j] = mtmp->mtrack[j-1];
357 mtmp->mtrack[0].x = omx;
358 mtmp->mtrack[0].y = omy;
360 if(mintrap(mtmp) == 2) /* he died */
366 /* return roomnumber or -1 */
367 inroom(x,y) xchar x,y; {
369 register struct mkroom *croom = &rooms[0];
370 while(croom->hx >= 0){
371 if(croom->hx >= x-1 && croom->lx <= x+1 &&
372 croom->hy >= y-1 && croom->ly <= y+1)
373 return(croom - rooms);
377 return(-1); /* not in room or on door */
381 register struct monst *mtmp;
382 register struct obj *obj;
384 register struct monst *mtmp2;
386 if(flags.moonphase == FULL_MOON && night() && rn2(6))
389 /* If we cannot tame him, at least he's no longer afraid. */
392 if(mtmp->mtame || mtmp->mfroz ||
396 mtmp->isshk || mtmp->isgd || index(" &@12", mtmp->data->mlet))
397 return(0); /* no tame long worms? */
399 if(dogfood(obj) >= MANFOOD) return(0);
400 if(cansee(mtmp->mx,mtmp->my)){
401 pline("%s devours the %s.", Monnam(mtmp),
402 objects[obj->otyp].oc_name);
404 obfree(obj, (struct obj *) 0);
406 mtmp2 = newmonst(sizeof(struct edog) + mtmp->mnamelth);
408 mtmp2->mxlth = sizeof(struct edog);
409 if(mtmp->mnamelth) (void) strcpy(NAME(mtmp2), NAME(mtmp));