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1.1 root 1: /* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
2: /* hack.dog.c - version 1.0.3 */
3:
4: #include "hack.h"
5: #include "hack.mfndpos.h"
6: extern struct monst *makemon();
7: #include "def.edog.h"
8: #include "def.mkroom.h"
9:
10: struct permonst li_dog =
11: { "little dog", 'd',2,18,6,1,6,sizeof(struct edog) };
12: struct permonst dog =
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) };
16:
17:
18: makedog(){
19: register struct monst *mtmp = makemon(&li_dog,u.ux,u.uy);
20: if(!mtmp) return; /* dogs were genocided */
21: initedog(mtmp);
22: }
23:
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;
32: }
33:
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! */
38:
39: losedogs(){
40: register struct monst *mtmp;
41: while(mtmp = mydogs){
42: mydogs = mtmp->nmon;
43: mtmp->nmon = fmon;
44: fmon = mtmp;
45: mnexto(mtmp);
46: }
47: while(mtmp = fallen_down){
48: fallen_down = mtmp->nmon;
49: mtmp->nmon = fmon;
50: fmon = mtmp;
51: rloc(mtmp);
52: }
53: }
54:
55: keepdogs(){
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) {
60: relmon(mtmp);
61: mtmp->nmon = mydogs;
62: mydogs = mtmp;
63: unpmon(mtmp);
64: keepdogs(); /* we destroyed the link, so use recursion */
65: return; /* (admittedly somewhat primitive) */
66: }
67: }
68:
69: fall_down(mtmp) register struct monst *mtmp; {
70: relmon(mtmp);
71: mtmp->nmon = fallen_down;
72: fallen_down = mtmp;
73: unpmon(mtmp);
74: mtmp->mtame = 0;
75: }
76:
77: /* return quality of food; the lower the better */
78: #define DOGFOOD 0
79: #define CADAVER 1
80: #define ACCFOOD 2
81: #define MANFOOD 3
82: #define APPORT 4
83: #define POISON 5
84: #define UNDEF 6
85: dogfood(obj) register struct obj *obj; {
86: switch(obj->olet) {
87: case FOOD_SYM:
88: return(
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)
94: ? POISON : CADAVER
95: );
96: default:
97: if(!obj->cursed) return(APPORT);
98: /* fall into next case */
99: case BALL_SYM:
100: case CHAIN_SYM:
101: case ROCK_SYM:
102: return(UNDEF);
103: }
104: }
105:
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);
113: struct obj *obj;
114: struct trap *trap;
115: xchar cnt,chcnt,nix,niy;
116: schar dogroom,uroom;
117: xchar gx,gy,gtyp,otyp; /* current goal */
118: coord poss[9];
119: int info[9];
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))
122:
123: if(moves <= edog->eattime) return(0); /* dog is still eating */
124: omx = mtmp->mx;
125: omy = mtmp->my;
126: whappr = (moves - EDOG(mtmp)->whistletime < 5);
127: if(moves > edog->hungrytime + 500 && !mtmp->mconf){
128: mtmp->mconf = 1;
129: mtmp->mhpmax /= 3;
130: if(mtmp->mhp > mtmp->mhpmax)
131: mtmp->mhp = mtmp->mhpmax;
132: if(cansee(omx,omy))
133: pline("%s is confused from hunger.", Monnam(mtmp));
134: else pline("You feel worried about %s.", monnam(mtmp));
135: } else
136: if(moves > edog->hungrytime + 750 || mtmp->mhp < 1){
137: if(cansee(omx,omy))
138: pline("%s dies from hunger.", Monnam(mtmp));
139: else
140: pline("You have a sad feeling for a moment, then it passes.");
141: mondied(mtmp);
142: return(2);
143: }
144: dogroom = inroom(omx,omy);
145: uroom = inroom(u.ux,u.uy);
146: udist = dist(omx,omy);
147:
148: /* maybe we tamed him while being swallowed --jgm */
149: if(!udist) return(0);
150:
151: /* if we are carrying sth then we drop it (perhaps near @) */
152: /* Note: if apport == 1 then our behaviour is independent of udist */
153: if(mtmp->minvent){
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;
160: }
161: } else {
162: if(obj = o_at(omx,omy)) if(!index("0_", obj->olet)){
163: if((otyp = dogfood(obj)) <= CADAVER){
164: nix = omx;
165: niy = omy;
166: goto eatobj;
167: }
168: if(obj->owt < 10*mtmp->data->mlevel)
169: if(rn2(20) < edog->apport+3)
170: if(rn2(udist) || !rn2((int) edog->apport)){
171: freeobj(obj);
172: unpobj(obj);
173: /* if(levl[omx][omy].scrsym == obj->olet)
174: newsym(omx,omy); */
175: mpickobj(mtmp,obj);
176: }
177: }
178: }
179:
180: /* first we look for food */
181: gtyp = UNDEF; /* no goal as yet */
182: #ifdef LINT
183: gx = gy = 0; /* suppress 'used before set' message */
184: #endif LINT
185: for(obj = fobj; obj; obj = obj->nobj) {
186: otyp = dogfood(obj);
187: if(otyp > gtyp || otyp == UNDEF) continue;
188: if(inroom(obj->ox,obj->oy) != dogroom) continue;
189: if(otyp < MANFOOD &&
190: (dogroom >= 0 || DDIST(obj->ox,obj->oy) < 10)) {
191: if(otyp < gtyp || (otyp == gtyp &&
192: DDIST(obj->ox,obj->oy) < DDIST(gx,gy))){
193: gx = obj->ox;
194: gy = obj->oy;
195: gtyp = otyp;
196: }
197: } else
198: if(gtyp == UNDEF && dogroom >= 0 &&
199: uroom == dogroom &&
200: !mtmp->minvent && edog->apport > rn2(8)){
201: gx = obj->ox;
202: gy = obj->oy;
203: gtyp = APPORT;
204: }
205: }
206: if(gtyp == UNDEF ||
207: (gtyp != DOGFOOD && gtyp != APPORT && moves < edog->hungrytime)){
208: if(dogroom < 0 || dogroom == uroom){
209: gx = u.ux;
210: gy = u.uy;
211: #ifndef QUEST
212: } else {
213: int tmp = rooms[dogroom].fdoor;
214: cnt = rooms[dogroom].doorct;
215:
216: gx = gy = FAR; /* random, far away */
217: while(cnt--){
218: if(dist(gx,gy) >
219: dist(doors[tmp].x, doors[tmp].y)){
220: gx = doors[tmp].x;
221: gy = doors[tmp].y;
222: }
223: tmp++;
224: }
225: /* here gx == FAR e.g. when dog is in a vault */
226: if(gx == FAR || (gx == omx && gy == omy)){
227: gx = u.ux;
228: gy = u.uy;
229: }
230: #endif QUEST
231: }
232: appr = (udist >= 9) ? 1 : (mtmp->mflee) ? -1 : 0;
233: if(after && udist <= 4 && gx == u.ux && gy == u.uy)
234: return(0);
235: if(udist > 1){
236: if(!IS_ROOM(levl[u.ux][u.uy].typ) || !rn2(4) ||
237: whappr ||
238: (mtmp->minvent && rn2((int) edog->apport)))
239: appr = 1;
240: }
241: /* if you have dog food he'll follow you more closely */
242: if(appr == 0){
243: obj = invent;
244: while(obj){
245: if(obj->otyp == TRIPE_RATION){
246: appr = 1;
247: break;
248: }
249: obj = obj->nobj;
250: }
251: }
252: } else appr = 1; /* gtyp != UNDEF */
253: if(mtmp->mconf) appr = 0;
254:
255: if(gx == u.ux && gy == u.uy && (dogroom != uroom || dogroom < 0)){
256: extern coord *gettrack();
257: register coord *cp;
258: cp = gettrack(omx,omy);
259: if(cp){
260: gx = cp->x;
261: gy = cp->y;
262: }
263: }
264:
265: nix = omx;
266: niy = omy;
267: cnt = mfndpos(mtmp,poss,info,ALLOW_M | ALLOW_TRAPS);
268: chcnt = 0;
269: chi = -1;
270: for(i=0; i<cnt; i++){
271: nx = poss[i].x;
272: ny = poss[i].y;
273: if(info[i] & ALLOW_M){
274: mtmp2 = m_at(nx,ny);
275: if(mtmp2->data->mlevel >= mdat->mlevel+2 ||
276: mtmp2->data->mlet == 'c')
277: continue;
278: if(after) return(0); /* hit only once each move */
279:
280: if(hitmm(mtmp, mtmp2) == 1 && rn2(4) &&
281: mtmp2->mlstmv != moves &&
282: hitmm(mtmp2,mtmp) == 2) return(2);
283: return(0);
284: }
285:
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;
291: }
292:
293: /* dog eschewes cursed objects */
294: /* but likes dog food */
295: obj = fobj;
296: while(obj){
297: if(obj->ox != nx || obj->oy != ny)
298: goto nextobj;
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 */
305: nix = nx;
306: niy = ny;
307: chi = i;
308: eatobj:
309: edog->eattime =
310: moves + obj->quan * objects[obj->otyp].oc_delay;
311: if(edog->hungrytime < moves)
312: edog->hungrytime = moves;
313: edog->hungrytime +=
314: 5*obj->quan * objects[obj->otyp].nutrition;
315: mtmp->mconf = 0;
316: if(cansee(nix,niy))
317: pline("%s ate %s.", Monnam(mtmp), doname(obj));
318: /* perhaps this was a reward */
319: if(otyp != CADAVER)
320: edog->apport += 200/(edog->dropdist+moves-edog->droptime);
321: delobj(obj);
322: goto newdogpos;
323: }
324: nextobj:
325: obj = obj->nobj;
326: }
327:
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;
331:
332: /* Some stupid C compilers cannot compute the whole expression at once. */
333: nearer = GDIST(nx,ny);
334: nearer -= GDIST(nix,niy);
335: nearer *= appr;
336: if((nearer == 0 && !rn2(++chcnt)) || nearer<0 ||
337: (nearer > 0 && !whappr &&
338: ((omx == nix && omy == niy && !rn2(3))
339: || !rn2(12))
340: )){
341: nix = nx;
342: niy = ny;
343: if(nearer < 0) chcnt = 0;
344: chi = i;
345: }
346: nxti: ;
347: }
348: newdogpos:
349: if(nix != omx || niy != omy){
350: if(info[chi] & ALLOW_U){
351: (void) hitu(mtmp, d(mdat->damn, mdat->damd)+1);
352: return(0);
353: }
354: mtmp->mx = nix;
355: mtmp->my = niy;
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;
359: }
360: if(mintrap(mtmp) == 2) /* he died */
361: return(2);
362: pmon(mtmp);
363: return(1);
364: }
365:
366: /* return roomnumber or -1 */
367: inroom(x,y) xchar x,y; {
368: #ifndef QUEST
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);
374: croom++;
375: }
376: #endif QUEST
377: return(-1); /* not in room or on door */
378: }
379:
380: tamedog(mtmp, obj)
381: register struct monst *mtmp;
382: register struct obj *obj;
383: {
384: register struct monst *mtmp2;
385:
386: if(flags.moonphase == FULL_MOON && night() && rn2(6))
387: return(0);
388:
389: /* If we cannot tame him, at least he's no longer afraid. */
390: mtmp->mflee = 0;
391: mtmp->mfleetim = 0;
392: if(mtmp->mtame || mtmp->mfroz ||
393: #ifndef NOWORM
394: mtmp->wormno ||
395: #endif NOWORM
396: mtmp->isshk || mtmp->isgd || index(" &@12", mtmp->data->mlet))
397: return(0); /* no tame long worms? */
398: if(obj) {
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);
403: }
404: obfree(obj, (struct obj *) 0);
405: }
406: mtmp2 = newmonst(sizeof(struct edog) + mtmp->mnamelth);
407: *mtmp2 = *mtmp;
408: mtmp2->mxlth = sizeof(struct edog);
409: if(mtmp->mnamelth) (void) strcpy(NAME(mtmp2), NAME(mtmp));
410: initedog(mtmp2);
411: replmon(mtmp,mtmp2);
412: return(1);
413: }
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