1 /* SCCS Id: @(#)steal.c 3.3 1999/02/13 */
2 /* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
3 /* NetHack may be freely redistributed. See license for details. */
4
5 #include "hack.h"
6
7 STATIC_PTR int NDECL(stealarm);
8
9 #ifdef OVLB
10 STATIC_DCL const char *FDECL(equipname, (struct obj *));
11
12 STATIC_OVL const char *
equipname(otmp)13 equipname(otmp)
14 register struct obj *otmp;
15 {
16 return (
17 #ifdef TOURIST
18 (otmp == uarmu) ? "shirt" :
19 #endif
20 (otmp == uarmf) ? "boots" :
21 (otmp == uarms) ? "shield" :
22 (otmp == uarmg) ? "gloves" :
23 (otmp == uarmc) ? "cloak" :
24 (otmp == uarmh) ? "helmet" : "armor");
25 }
26
27 long /* actually returns something that fits in an int */
somegold()28 somegold()
29 {
30 #ifdef LINT /* long conv. ok */
31 return(0L);
32 #else
33 return (long)( (u.ugold < 100) ? u.ugold :
34 (u.ugold > 10000) ? rnd(10000) : rnd((int) u.ugold) );
35 #endif
36 }
37
38 void
stealgold(mtmp)39 stealgold(mtmp)
40 register struct monst *mtmp;
41 {
42 register struct obj *gold = g_at(u.ux, u.uy);
43 register long tmp;
44
45 if (gold && ( !u.ugold || gold->quan > u.ugold || !rn2(5))) {
46 mtmp->mgold += gold->quan;
47 delobj(gold);
48 newsym(u.ux, u.uy);
49 pline("%s quickly snatches some gold from between your %s!",
50 Monnam(mtmp), makeplural(body_part(FOOT)));
51 if(!u.ugold || !rn2(5)) {
52 if (!tele_restrict(mtmp)) rloc(mtmp);
53 mtmp->mflee = 1;
54 }
55 } else if(u.ugold) {
56 u.ugold -= (tmp = somegold());
57 Your("purse feels lighter.");
58 mtmp->mgold += tmp;
59 if (!tele_restrict(mtmp)) rloc(mtmp);
60 mtmp->mflee = 1;
61 flags.botl = 1;
62 }
63 }
64
65 /* steal armor after you finish taking it off */
66 unsigned int stealoid; /* object to be stolen */
67 unsigned int stealmid; /* monster doing the stealing */
68
69 STATIC_PTR int
stealarm()70 stealarm()
71 {
72 register struct monst *mtmp;
73 register struct obj *otmp;
74
75 for(otmp = invent; otmp; otmp = otmp->nobj) {
76 if(otmp->o_id == stealoid) {
77 for(mtmp = fmon; mtmp; mtmp = mtmp->nmon) {
78 if(mtmp->m_id == stealmid) {
79 if(DEADMONSTER(mtmp)) impossible("stealarm(): dead monster stealing");
80 if(!dmgtype(mtmp->data, AD_SITM)) /* polymorphed */
81 goto botm;
82 if(otmp->unpaid)
83 subfrombill(otmp, shop_keeper(*u.ushops));
84 freeinv(otmp);
85 pline("%s steals %s!", Monnam(mtmp), doname(otmp));
86 (void) mpickobj(mtmp,otmp); /* may free otmp */
87 mtmp->mflee = 1;
88 if (!tele_restrict(mtmp)) rloc(mtmp);
89 break;
90 }
91 }
92 break;
93 }
94 }
95 botm: stealoid = 0;
96 return 0;
97 }
98
99 /* An object you're wearing has been taken off my a monster (theft or
100 seduction). Also used if a worn item gets transformed (stone to flesh). */
101 void
remove_worn_item(obj)102 remove_worn_item(obj)
103 struct obj *obj;
104 {
105 if (donning(obj))
106 cancel_don();
107 if (!obj->owornmask)
108 return;
109
110 switch (obj->oclass) {
111 case TOOL_CLASS:
112 if (obj == ublindf) Blindf_off(obj);
113 break;
114 case AMULET_CLASS:
115 Amulet_off();
116 break;
117 case RING_CLASS:
118 case FOOD_CLASS: /* meat ring */
119 Ring_gone(obj);
120 break;
121 case ARMOR_CLASS:
122 if (obj == uarm) (void) Armor_off();
123 else if (obj == uarmc) (void) Cloak_off();
124 else if (obj == uarmf) (void) Boots_off();
125 else if (obj == uarmg) (void) Gloves_off();
126 else if (obj == uarmh) (void) Helmet_off();
127 else if (obj == uarms) (void) Shield_off();
128 else setworn((struct obj *)0, obj->owornmask & W_ARMOR);
129 break;
130 default:
131 /* shouldn't reach here, but just in case... */
132 setnotworn(obj);
133 break;
134 }
135 }
136
137 /* Returns 1 when something was stolen (or at least, when N should flee now)
138 * Returns -1 if the monster died in the attempt
139 * Avoid stealing the object stealoid
140 */
141 int
steal(mtmp)142 steal(mtmp)
143 struct monst *mtmp;
144 {
145 struct obj *otmp;
146 int tmp, could_petrify, named = 0;
147
148 /* the following is true if successful on first of two attacks. */
149 if(!monnear(mtmp, u.ux, u.uy)) return(0);
150
151 if (!invent || (inv_cnt() == 1 && uskin)) {
152 nothing_to_steal:
153 /* Not even a thousand men in armor can strip a naked man. */
154 if(Blind)
155 pline("Somebody tries to rob you, but finds nothing to steal.");
156 else
157 pline("%s tries to rob you, but there is nothing to steal!",
158 Monnam(mtmp));
159 return(1); /* let her flee */
160 }
161
162 if (Adornment & LEFT_RING) {
163 otmp = uleft;
164 goto gotobj;
165 } else if (Adornment & RIGHT_RING) {
166 otmp = uright;
167 goto gotobj;
168 }
169
170 tmp = 0;
171 for(otmp = invent; otmp; otmp = otmp->nobj)
172 if ((!uarm || otmp != uarmc) && otmp != uskin
173 #ifdef INVISIBLE_OBJECTS
174 && (!otmp->oinvis || perceives(mtmp->data))
175 #endif
176 )
177 tmp += ((otmp->owornmask &
178 (W_ARMOR | W_RING | W_AMUL | W_TOOL)) ? 5 : 1);
179 if (!tmp) goto nothing_to_steal;
180 tmp = rn2(tmp);
181 for(otmp = invent; otmp; otmp = otmp->nobj)
182 if ((!uarm || otmp != uarmc) && otmp != uskin
183 #ifdef INVISIBLE_OBJECTS
184 && (!otmp->oinvis || perceives(mtmp->data))
185 #endif
186 )
187 if((tmp -= ((otmp->owornmask &
188 (W_ARMOR | W_RING | W_AMUL | W_TOOL)) ? 5 : 1)) < 0)
189 break;
190 if(!otmp) {
191 impossible("Steal fails!");
192 return(0);
193 }
194 /* can't steal gloves while wielding - so steal the wielded item. */
195 if (otmp == uarmg && uwep)
196 otmp = uwep;
197 /* can't steal armor while wearing cloak - so steal the cloak. */
198 else if(otmp == uarm && uarmc) otmp = uarmc;
199 #ifdef TOURIST
200 else if(otmp == uarmu && uarmc) otmp = uarmc;
201 else if(otmp == uarmu && uarm) otmp = uarm;
202 #endif
203 gotobj:
204 if(otmp->o_id == stealoid) return(0);
205
206 if(otmp->otyp == LEASH && otmp->leashmon) o_unleash(otmp);
207
208 if((otmp->owornmask & (W_ARMOR | W_RING | W_AMUL | W_TOOL))){
209 switch(otmp->oclass) {
210 case TOOL_CLASS:
211 case AMULET_CLASS:
212 case RING_CLASS:
213 case FOOD_CLASS: /* meat ring */
214 remove_worn_item(otmp);
215 break;
216 case ARMOR_CLASS:
217 /* Stop putting on armor which has been stolen. */
218 if (donning(otmp) || is_animal(mtmp->data)) {
219 remove_worn_item(otmp);
220 break;
221 } else {
222 int curssv = otmp->cursed;
223
224 otmp->cursed = 0;
225 stop_occupation();
226 if(flags.female)
227 pline("%s charms you. You gladly %s your %s.",
228 Blind ? "She" : Monnam(mtmp),
229 curssv ? "let her take" :
230 (objects[otmp->otyp].oc_delay > 1) ? "start removing" : "hand over",
231 equipname(otmp));
232 else
233 pline("%s seduces you and %s off your %s.",
234 Blind ? "It" : Adjmonnam(mtmp, "beautiful"),
235 curssv ? "helps you to take" :
236 (objects[otmp->otyp].oc_delay > 1) ? "you start taking" : "you take",
237 equipname(otmp));
238 named++;
239 /* the following is to set multi for later on */
240 nomul(-objects[otmp->otyp].oc_delay);
241 remove_worn_item(otmp);
242 otmp->cursed = curssv;
243 if(multi < 0){
244 /*
245 multi = 0;
246 nomovemsg = 0;
247 afternmv = 0;
248 */
249 stealoid = otmp->o_id;
250 stealmid = mtmp->m_id;
251 afternmv = stealarm;
252 return(0);
253 }
254 }
255 break;
256 default:
257 impossible("Tried to steal a strange worn thing.");
258 }
259 }
260 else if (otmp == uwep) uwepgone();
261 else if (otmp == uquiver) uqwepgone();
262 else if (otmp == uswapwep) uswapwepgone();
263
264 if(otmp == uball) unpunish();
265
266 freeinv(otmp);
267 pline("%s stole %s.", named ? "She" : Monnam(mtmp), doname(otmp));
268 could_petrify = otmp->otyp == CORPSE && touch_petrifies(&mons[otmp->corpsenm]);
269 (void) mpickobj(mtmp,otmp); /* may free otmp */
270 if (could_petrify && !(mtmp->misc_worn_check & W_ARMG)) {
271 minstapetrify(mtmp, TRUE);
272 return -1;
273 }
274 return((multi < 0) ? 0 : 1);
275 }
276
277 #endif /* OVLB */
278 #ifdef OVL1
279
280 /* Returns 1 if otmp is free'd, 0 otherwise. */
281 int
mpickobj(mtmp,otmp)282 mpickobj(mtmp,otmp)
283 register struct monst *mtmp;
284 register struct obj *otmp;
285 {
286 int freed_otmp;
287
288 if (otmp->oclass == GOLD_CLASS) {
289 mtmp->mgold += otmp->quan;
290 obfree(otmp, (struct obj *)0);
291 freed_otmp = 1;
292 } else {
293 boolean snuff_otmp = FALSE;
294 /* don't want hidden light source inside the monster; assumes that
295 engulfers won't have external inventories; whirly monsters cause
296 the light to be extinguished rather than letting it shine thru */
297 if (otmp->lamplit && /* hack to avoid function calls for most objs */
298 obj_sheds_light(otmp) &&
299 attacktype(mtmp->data, AT_ENGL)) {
300 /* this is probably a burning object that you dropped or threw */
301 if (u.uswallow && mtmp == u.ustuck && !Blind)
302 pline("%s go%s out.", The(xname(otmp)),
303 otmp->quan == 1L ? "es" : "");
304 snuff_otmp = TRUE;
305 }
306 /* Must do carrying effects on object prior to add_to_minv() */
307 carry_obj_effects(otmp);
308 /* add_to_minv() might free otmp [if merged with something else],
309 so we have to call it after doing the object checks */
310 freed_otmp = add_to_minv(mtmp, otmp);
311 /* and we had to defer this until object is in mtmp's inventory */
312 if (snuff_otmp) snuff_light_source(mtmp->mx, mtmp->my);
313 }
314 return freed_otmp;
315 }
316
317 #endif /* OVL1 */
318 #ifdef OVLB
319
320 void
stealamulet(mtmp)321 stealamulet(mtmp)
322 struct monst *mtmp;
323 {
324 struct obj *otmp = (struct obj *)0;
325 int real=0, fake=0;
326
327 /* select the artifact to steal */
328 if(u.uhave.amulet) {
329 real = AMULET_OF_YENDOR;
330 fake = FAKE_AMULET_OF_YENDOR;
331 } else if(u.uhave.questart) {
332 for(otmp = invent; otmp; otmp = otmp->nobj)
333 if(is_quest_artifact(otmp)) break;
334 if (!otmp) return; /* should we panic instead? */
335 } else if(u.uhave.bell) {
336 real = BELL_OF_OPENING;
337 fake = BELL;
338 } else if(u.uhave.book) {
339 real = SPE_BOOK_OF_THE_DEAD;
340 } else if(u.uhave.menorah) {
341 real = CANDELABRUM_OF_INVOCATION;
342 } else return; /* you have nothing of special interest */
343
344 if (!otmp) {
345 /* If we get here, real and fake have been set up. */
346 for(otmp = invent; otmp; otmp = otmp->nobj)
347 if(otmp->otyp == real || (otmp->otyp == fake && !mtmp->iswiz))
348 break;
349 }
350
351 if (otmp) { /* we have something to snatch */
352 if (otmp->owornmask)
353 remove_worn_item(otmp);
354 freeinv(otmp);
355 /* mpickobj wont merge otmp because none of the above things
356 to steal are mergable */
357 (void) mpickobj(mtmp,otmp); /* may merge and free otmp */
358 pline("%s stole %s!", Monnam(mtmp), doname(otmp));
359 if (can_teleport(mtmp->data) && !tele_restrict(mtmp))
360 rloc(mtmp);
361 }
362 }
363
364 #endif /* OVLB */
365 #ifdef OVL0
366
367 /* release the objects the creature is carrying */
368 void
relobj(mtmp,show,is_pet)369 relobj(mtmp,show,is_pet)
370 register struct monst *mtmp;
371 register int show;
372 boolean is_pet; /* If true, pet should keep wielded/worn items */
373 {
374 register struct obj *otmp;
375 register int omx = mtmp->mx, omy = mtmp->my;
376 struct obj *keepobj = 0;
377 struct obj *wep = MON_WEP(mtmp);
378 boolean item1 = FALSE, item2 = FALSE;
379
380 if (!is_pet || mindless(mtmp->data) || is_animal(mtmp->data))
381 item1 = item2 = TRUE;
382 if (!tunnels(mtmp->data) || !needspick(mtmp->data))
383 item1 = TRUE;
384 while ((otmp = mtmp->minvent) != 0) {
385 obj_extract_self(otmp);
386 /* special case: pick-axe and unicorn horn are non-worn */
387 /* items that we also want pets to keep 1 of */
388 /* (It is a coincidence that these can also be wielded. */
389 if (otmp->owornmask || otmp == wep ||
390 ((!item1 && otmp->otyp == PICK_AXE) ||
391 (!item2 && otmp->otyp == UNICORN_HORN && !otmp->cursed))) {
392 if (is_pet) { /* dont drop worn/wielded item */
393 if (otmp->otyp == PICK_AXE)
394 item1 = TRUE;
395 if (otmp->otyp == UNICORN_HORN && !otmp->cursed)
396 item2 = TRUE;
397 otmp->nobj = keepobj;
398 keepobj = otmp;
399 continue;
400 }
401 mtmp->misc_worn_check &= ~(otmp->owornmask);
402 otmp->owornmask = 0L;
403 }
404 if (is_pet && cansee(omx, omy) && flags.verbose)
405 pline("%s drops %s.", Monnam(mtmp),
406 distant_name(otmp, doname));
407 if (flooreffects(otmp, omx, omy, "fall")) continue;
408 place_object(otmp, omx, omy);
409 stackobj(otmp);
410 }
411 /* put kept objects back */
412 while ((otmp = keepobj) != (struct obj *)0) {
413 keepobj = otmp->nobj;
414 (void) add_to_minv(mtmp, otmp);
415 }
416
417 if (mtmp->mgold) {
418 register long g = mtmp->mgold;
419 (void) mkgold(g, omx, omy);
420 if (is_pet && cansee(omx, omy) && flags.verbose)
421 pline("%s drops %ld gold piece%s.", Monnam(mtmp),
422 g, plur(g));
423 mtmp->mgold = 0L;
424 }
425 if (show & cansee(omx, omy))
426 newsym(omx, omy);
427 }
428
429 #endif /* OVL0 */
430
431 /*steal.c*/
432