1 /* SCCS Id: @(#)muse.c 3.3 2000/06/02 */
2 /* Copyright (C) 1990 by Ken Arromdee */
3 /* NetHack may be freely redistributed. See license for details. */
4
5 /*
6 * Monster item usage routines.
7 */
8
9 #include "hack.h"
10 #include "edog.h"
11
12 extern const int monstr[];
13
14 boolean m_using = FALSE;
15
16 /* Let monsters use magic items. Arbitrary assumptions: Monsters only use
17 * scrolls when they can see, monsters know when wands have 0 charges, monsters
18 * cannot recognize if items are cursed are not, monsters which are confused
19 * don't know not to read scrolls, etc....
20 */
21
22 STATIC_DCL int FDECL(precheck, (struct monst *,struct obj *));
23 STATIC_DCL void FDECL(mzapmsg, (struct monst *,struct obj *,BOOLEAN_P));
24 STATIC_DCL void FDECL(mreadmsg, (struct monst *,struct obj *));
25 STATIC_DCL void FDECL(mquaffmsg, (struct monst *,struct obj *));
26 STATIC_PTR int FDECL(mbhitm, (struct monst *,struct obj *));
27 STATIC_DCL void FDECL(mbhit,
28 (struct monst *,int,int FDECL((*),(MONST_P,OBJ_P)),
29 int FDECL((*),(OBJ_P,OBJ_P)),struct obj *));
30 STATIC_DCL void FDECL(you_aggravate, (struct monst *));
31
32 static struct musable {
33 struct obj *offensive;
34 struct obj *defensive;
35 struct obj *misc;
36 int has_offense, has_defense, has_misc;
37 /* =0, no capability; otherwise, different numbers.
38 * If it's an object, the object is also set (it's 0 otherwise).
39 */
40 } m;
41 static int trapx, trapy;
42 static boolean zap_oseen;
43 /* for wands which use mbhitm and are zapped at players. We usually
44 * want an oseen local to the function, but this is impossible since the
45 * function mbhitm has to be compatible with the normal zap routines,
46 * and those routines don't remember who zapped the wand.
47 */
48
49 /* Any preliminary checks which may result in the monster being unable to use
50 * the item. Returns 0 if nothing happened, 2 if the monster can't do anything
51 * (i.e. it teleported) and 1 if it's dead.
52 */
53 STATIC_OVL int
precheck(mon,obj)54 precheck(mon, obj)
55 struct monst *mon;
56 struct obj *obj;
57 {
58 boolean vis;
59
60 if (!obj) return 0;
61 vis = cansee(mon->mx, mon->my);
62
63 if (obj->oclass == POTION_CLASS) {
64 coord cc;
65 static const char *empty = "The potion turns out to be empty.";
66 const char *potion_descr;
67 struct monst *mtmp;
68 #define POTION_OCCUPANT_CHANCE(n) (13 + 2*(n)) /* also in potion.c */
69
70 potion_descr = OBJ_DESCR(objects[obj->otyp]);
71 if (potion_descr && !strcmp(potion_descr, "milky")) {
72 if ( flags.ghost_count < MAXMONNO &&
73 !rn2(POTION_OCCUPANT_CHANCE(flags.ghost_count))) {
74 if (!enexto(&cc, mon->mx, mon->my, &mons[PM_GHOST])) return 0;
75 mquaffmsg(mon, obj);
76 m_useup(mon, obj);
77 mtmp = makemon(&mons[PM_GHOST], cc.x, cc.y, NO_MM_FLAGS);
78 if (!mtmp) {
79 if (vis) pline(empty);
80 } else {
81 if (vis) {
82 pline("As %s opens the bottle, an enormous %s emerges!",
83 mon_nam(mon),
84 Hallucination ? rndmonnam() : (const char *)"ghost");
85 pline("%s is frightened to death, and unable to move.",
86 Monnam(mon));
87 }
88 mon->mcanmove = 0;
89 mon->mfrozen = 3;
90 }
91 return 2;
92 }
93 }
94 if (potion_descr && !strcmp(potion_descr, "smoky") &&
95 flags.djinni_count < MAXMONNO &&
96 !rn2(POTION_OCCUPANT_CHANCE(flags.djinni_count))) {
97 if (!enexto(&cc, mon->mx, mon->my, &mons[PM_DJINNI])) return 0;
98 mquaffmsg(mon, obj);
99 m_useup(mon, obj);
100 mtmp = makemon(&mons[PM_DJINNI], cc.x, cc.y, NO_MM_FLAGS);
101 if (!mtmp) {
102 if (vis) pline(empty);
103 } else {
104 if (vis)
105 pline("In a cloud of smoke, %s emerges!",
106 a_monnam(mtmp));
107 pline("%s speaks.", vis ? Monnam(mtmp) : Something);
108 /* I suspect few players will be upset that monsters */
109 /* can't wish for wands of death here.... */
110 if (rn2(2)) {
111 verbalize("You freed me!");
112 mtmp->mpeaceful = 1;
113 set_malign(mtmp);
114 } else {
115 verbalize("It is about time.");
116 if (vis) pline("%s vanishes.", Monnam(mtmp));
117 mongone(mtmp);
118 }
119 }
120 return 2;
121 }
122 }
123 if (obj->oclass == WAND_CLASS && obj->cursed && !rn2(100)) {
124 int dam = d(obj->spe+2, 6);
125
126 if (flags.soundok) {
127 if (vis) pline("%s zaps %s, which suddenly explodes!",
128 Monnam(mon), an(xname(obj)));
129 else You_hear("a zap and an explosion in the distance.");
130 }
131 m_useup(mon, obj);
132 if (mon->mhp <= dam) {
133 monkilled(mon, "", AD_RBRE);
134 return 1;
135 }
136 else mon->mhp -= dam;
137 m.has_defense = m.has_offense = m.has_misc = 0;
138 /* Only one needed to be set to 0 but the others are harmless */
139 }
140 return 0;
141 }
142
143 STATIC_OVL void
mzapmsg(mtmp,otmp,self)144 mzapmsg(mtmp, otmp, self)
145 struct monst *mtmp;
146 struct obj *otmp;
147 boolean self;
148 {
149 if (!canseemon(mtmp)) {
150 if (flags.soundok)
151 You_hear("a %s zap.",
152 (distu(mtmp->mx,mtmp->my) <= (BOLT_LIM+1)*(BOLT_LIM+1)) ?
153 "nearby" : "distant");
154 } else if (self)
155 pline("%s zaps %sself with %s!",
156 Monnam(mtmp), him[pronoun_gender(mtmp)], doname(otmp));
157 else {
158 pline("%s zaps %s!", Monnam(mtmp), an(xname(otmp)));
159 stop_occupation();
160 }
161 }
162
163 STATIC_OVL void
mreadmsg(mtmp,otmp)164 mreadmsg(mtmp, otmp)
165 struct monst *mtmp;
166 struct obj *otmp;
167 {
168 boolean vismon = canseemon(mtmp);
169 char onambuf[BUFSZ];
170 short saverole;
171 unsigned savebknown;
172
173 if (!vismon && !flags.soundok)
174 return; /* no feedback */
175
176 otmp->dknown = 1; /* seeing or hearing it read reveals its label */
177 /* shouldn't be able to hear curse/bless status of unseen scrolls;
178 for priest characters, bknown will always be set during naming */
179 savebknown = otmp->bknown;
180 saverole = Role_switch;
181 if (!vismon) {
182 otmp->bknown = 0;
183 if (Role_if(PM_PRIEST)) Role_switch = 0;
184 }
185 Strcpy(onambuf, singular(otmp, doname));
186 Role_switch = saverole;
187 otmp->bknown = savebknown;
188
189 if (vismon)
190 pline("%s reads %s!", Monnam(mtmp), onambuf);
191 else
192 You_hear("%s reading %s.",
193 x_monnam(mtmp, ARTICLE_A, (char *)0,
194 (SUPPRESS_IT|SUPPRESS_INVISIBLE|SUPPRESS_SADDLE), FALSE),
195 onambuf);
196
197 if (mtmp->mconf)
198 pline("Being confused, %s mispronounces the magic words...",
199 vismon ? mon_nam(mtmp) : he[pronoun_gender(mtmp)]);
200 }
201
202 STATIC_OVL void
mquaffmsg(mtmp,otmp)203 mquaffmsg(mtmp, otmp)
204 struct monst *mtmp;
205 struct obj *otmp;
206 {
207 if (canseemon(mtmp)) {
208 otmp->dknown = 1;
209 pline("%s drinks %s!", Monnam(mtmp), singular(otmp, doname));
210 } else
211 if (flags.soundok)
212 You_hear("a chugging sound.");
213 }
214
215 /* Defines for various types of stuff. The order in which monsters prefer
216 * to use them is determined by the order of the code logic, not the
217 * numerical order in which they are defined.
218 */
219 #define MUSE_SCR_TELEPORTATION 1
220 #define MUSE_WAN_TELEPORTATION_SELF 2
221 #define MUSE_POT_HEALING 3
222 #define MUSE_POT_EXTRA_HEALING 4
223 #define MUSE_WAN_DIGGING 5
224 #define MUSE_TRAPDOOR 6
225 #define MUSE_TELEPORT_TRAP 7
226 #define MUSE_UPSTAIRS 8
227 #define MUSE_DOWNSTAIRS 9
228 #define MUSE_WAN_CREATE_MONSTER 10
229 #define MUSE_SCR_CREATE_MONSTER 11
230 #define MUSE_UP_LADDER 12
231 #define MUSE_DN_LADDER 13
232 #define MUSE_SSTAIRS 14
233 #define MUSE_WAN_TELEPORTATION 15
234 #define MUSE_BUGLE 16
235 #define MUSE_UNICORN_HORN 17
236 #define MUSE_POT_FULL_HEALING 18
237 /*
238 #define MUSE_INNATE_TPT 9999
239 * We cannot use this. Since monsters get unlimited teleportation, if they
240 * were allowed to teleport at will you could never catch them. Instead,
241 * assume they only teleport at random times, despite the inconsistency that if
242 * you polymorph into one you teleport at will.
243 */
244
245 /* Select a defensive item/action for a monster. Returns TRUE iff one is
246 * found.
247 */
248 boolean
find_defensive(mtmp)249 find_defensive(mtmp)
250 struct monst *mtmp;
251 {
252 register struct obj *obj = 0;
253 struct trap *t;
254 int x=mtmp->mx, y=mtmp->my;
255 boolean stuck = (mtmp == u.ustuck);
256 boolean immobile = (mtmp->data->mmove == 0);
257 int fraction;
258
259 if (is_animal(mtmp->data) || mindless(mtmp->data))
260 return FALSE;
261 if(dist2(x, y, mtmp->mux, mtmp->muy) > 25)
262 return FALSE;
263 if (u.uswallow && stuck) return FALSE;
264
265 m.defensive = (struct obj *)0;
266 m.has_defense = 0;
267
268 /* since unicorn horns don't get used up, the monster would look
269 * silly trying to use the same cursed horn round after round
270 */
271 if (mtmp->mconf || mtmp->mstun || !mtmp->mcansee) {
272 if (!is_unicorn(mtmp->data) && !nohands(mtmp->data)) {
273 for(obj = mtmp->minvent; obj; obj = obj->nobj)
274 if (obj->otyp == UNICORN_HORN && !obj->cursed)
275 break;
276 }
277 if (obj || is_unicorn(mtmp->data)) {
278 m.defensive = obj;
279 m.has_defense = MUSE_UNICORN_HORN;
280 return TRUE;
281 }
282 }
283
284 /* It so happens there are two unrelated cases when we might want to
285 * check specifically for healing alone. The first is when the monster
286 * is blind (healing cures blindness). The second is when the monster
287 * is peaceful; then we don't want to flee the player, and by
288 * coincidence healing is all there is that doesn't involve fleeing.
289 * These would be hard to combine because of the control flow.
290 * Pestilence won't use healing even when blind.
291 */
292 if (!mtmp->mcansee && !nohands(mtmp->data) &&
293 mtmp->data != &mons[PM_PESTILENCE]) {
294 if ((obj = m_carrying(mtmp, POT_FULL_HEALING)) != 0) {
295 m.defensive = obj;
296 m.has_defense = MUSE_POT_FULL_HEALING;
297 return TRUE;
298 }
299 if ((obj = m_carrying(mtmp, POT_EXTRA_HEALING)) != 0) {
300 m.defensive = obj;
301 m.has_defense = MUSE_POT_EXTRA_HEALING;
302 return TRUE;
303 }
304 if ((obj = m_carrying(mtmp, POT_HEALING)) != 0) {
305 m.defensive = obj;
306 m.has_defense = MUSE_POT_HEALING;
307 return TRUE;
308 }
309 }
310
311 fraction = u.ulevel < 10 ? 5 : u.ulevel < 14 ? 4 : 3;
312 if(mtmp->mhp >= mtmp->mhpmax ||
313 (mtmp->mhp >= 10 && mtmp->mhp*fraction >= mtmp->mhpmax))
314 return FALSE;
315
316 if (mtmp->mpeaceful) {
317 if (!nohands(mtmp->data)) {
318 if ((obj = m_carrying(mtmp, POT_FULL_HEALING)) != 0) {
319 m.defensive = obj;
320 m.has_defense = MUSE_POT_FULL_HEALING;
321 return TRUE;
322 }
323 if ((obj = m_carrying(mtmp, POT_EXTRA_HEALING)) != 0) {
324 m.defensive = obj;
325 m.has_defense = MUSE_POT_EXTRA_HEALING;
326 return TRUE;
327 }
328 if ((obj = m_carrying(mtmp, POT_HEALING)) != 0) {
329 m.defensive = obj;
330 m.has_defense = MUSE_POT_HEALING;
331 return TRUE;
332 }
333 }
334 return FALSE;
335 }
336
337 if (levl[x][y].typ == STAIRS && !stuck && !immobile) {
338 if (x == xdnstair && y == ydnstair && !is_floater(mtmp->data))
339 m.has_defense = MUSE_DOWNSTAIRS;
340 if (x == xupstair && y == yupstair && ledger_no(&u.uz) != 1)
341 /* Unfair to let the monsters leave the dungeon with the Amulet */
342 /* (or go to the endlevel since you also need it, to get there) */
343 m.has_defense = MUSE_UPSTAIRS;
344 } else if (levl[x][y].typ == LADDER && !stuck && !immobile) {
345 if (x == xupladder && y == yupladder)
346 m.has_defense = MUSE_UP_LADDER;
347 if (x == xdnladder && y == ydnladder && !is_floater(mtmp->data))
348 m.has_defense = MUSE_DN_LADDER;
349 } else if (sstairs.sx && sstairs.sx == x && sstairs.sy == y) {
350 m.has_defense = MUSE_SSTAIRS;
351 } else if (!stuck && !immobile) {
352 /* Note: trap doors take precedence over teleport traps. */
353 int xx, yy;
354
355 for(xx = x-1; xx <= x+1; xx++) for(yy = y-1; yy <= y+1; yy++)
356 if (isok(xx,yy))
357 if (xx != u.ux && yy != u.uy)
358 if (mtmp->data != &mons[PM_GRID_BUG] || xx == x || yy == y)
359 if ((xx==x && yy==y) || !level.monsters[xx][yy])
360 if ((t = t_at(xx,yy)) != 0)
361 if ((verysmall(mtmp->data) || throws_rocks(mtmp->data) ||
362 passes_walls(mtmp->data)) || !sobj_at(BOULDER, xx, yy))
363 if (!onscary(xx,yy,mtmp)) {
364 if ((t->ttyp == TRAPDOOR || t->ttyp == HOLE)
365 && !is_floater(mtmp->data)
366 && !mtmp->isshk && !mtmp->isgd
367 && !mtmp->ispriest
368 && Can_fall_thru(&u.uz)
369 ) {
370 trapx = xx;
371 trapy = yy;
372 m.has_defense = MUSE_TRAPDOOR;
373 } else if (t->ttyp == TELEP_TRAP && m.has_defense != MUSE_TRAPDOOR) {
374 trapx = xx;
375 trapy = yy;
376 m.has_defense = MUSE_TELEPORT_TRAP;
377 }
378 }
379 }
380
381 if (nohands(mtmp->data)) /* can't use objects */
382 goto botm;
383
384 if (is_mercenary(mtmp->data) && (obj = m_carrying(mtmp, BUGLE))) {
385 int xx, yy;
386 struct monst *mon;
387
388 /* Distance is arbitrary. What we really want to do is
389 * have the soldier play the bugle when it sees or
390 * remembers soldiers nearby...
391 */
392 for(xx = x-3; xx <= x+3; xx++) for(yy = y-3; yy <= y+3; yy++)
393 if (isok(xx,yy))
394 if ((mon = m_at(xx,yy)) && is_mercenary(mon->data) &&
395 mon->data != &mons[PM_GUARD] &&
396 (mon->msleeping || (!mon->mcanmove))) {
397 m.defensive = obj;
398 m.has_defense = MUSE_BUGLE;
399 }
400 }
401
402 /* use immediate physical escape prior to attempting magic */
403 if (m.has_defense) /* stairs, trap door or tele-trap, bugle alert */
404 goto botm;
405
406 /* kludge to cut down on trap destruction (particularly portals) */
407 t = t_at(x,y);
408 if (t && (t->ttyp == PIT || t->ttyp == SPIKED_PIT ||
409 t->ttyp == WEB || t->ttyp == BEAR_TRAP))
410 t = 0; /* ok for monster to dig here */
411
412 #define nomore(x) if(m.has_defense==x) continue;
413 for (obj = mtmp->minvent; obj; obj = obj->nobj) {
414 /* don't always use the same selection pattern */
415 if (m.has_defense && !rn2(3)) break;
416
417 /* nomore(MUSE_WAN_DIGGING); */
418 if (m.has_defense == MUSE_WAN_DIGGING) break;
419 if (obj->otyp == WAN_DIGGING && obj->spe > 0 && !stuck && !t
420 && !mtmp->isshk && !mtmp->isgd && !mtmp->ispriest
421 && !is_floater(mtmp->data)
422 /* digging wouldn't be effective; assume they know that */
423 && !(levl[x][y].wall_info & W_NONDIGGABLE)
424 && !(Is_botlevel(&u.uz) || In_endgame(&u.uz))
425 && !(is_ice(x,y) || is_pool(x,y) || is_lava(x,y))) {
426 m.defensive = obj;
427 m.has_defense = MUSE_WAN_DIGGING;
428 }
429 nomore(MUSE_WAN_TELEPORTATION_SELF);
430 nomore(MUSE_WAN_TELEPORTATION);
431 if(obj->otyp == WAN_TELEPORTATION && obj->spe > 0) {
432 m.defensive = obj;
433 m.has_defense = (mon_has_amulet(mtmp))
434 ? MUSE_WAN_TELEPORTATION
435 : MUSE_WAN_TELEPORTATION_SELF;
436 }
437 nomore(MUSE_SCR_TELEPORTATION);
438 if(obj->otyp == SCR_TELEPORTATION && mtmp->mcansee
439 && haseyes(mtmp->data)
440 && (!obj->cursed ||
441 (!(mtmp->isshk && inhishop(mtmp))
442 && !mtmp->isgd && !mtmp->ispriest))) {
443 m.defensive = obj;
444 m.has_defense = MUSE_SCR_TELEPORTATION;
445 }
446
447 if (mtmp->data != &mons[PM_PESTILENCE]) {
448 nomore(MUSE_POT_FULL_HEALING);
449 if(obj->otyp == POT_FULL_HEALING) {
450 m.defensive = obj;
451 m.has_defense = MUSE_POT_FULL_HEALING;
452 }
453 nomore(MUSE_POT_EXTRA_HEALING);
454 if(obj->otyp == POT_EXTRA_HEALING) {
455 m.defensive = obj;
456 m.has_defense = MUSE_POT_EXTRA_HEALING;
457 }
458 nomore(MUSE_WAN_CREATE_MONSTER);
459 if(obj->otyp == WAN_CREATE_MONSTER && obj->spe > 0) {
460 m.defensive = obj;
461 m.has_defense = MUSE_WAN_CREATE_MONSTER;
462 }
463 nomore(MUSE_POT_HEALING);
464 if(obj->otyp == POT_HEALING) {
465 m.defensive = obj;
466 m.has_defense = MUSE_POT_HEALING;
467 }
468 } else { /* Pestilence */
469 nomore(MUSE_POT_FULL_HEALING);
470 if (obj->otyp == POT_SICKNESS) {
471 m.defensive = obj;
472 m.has_defense = MUSE_POT_FULL_HEALING;
473 }
474 nomore(MUSE_WAN_CREATE_MONSTER);
475 if (obj->otyp == WAN_CREATE_MONSTER && obj->spe > 0) {
476 m.defensive = obj;
477 m.has_defense = MUSE_WAN_CREATE_MONSTER;
478 }
479 }
480 nomore(MUSE_SCR_CREATE_MONSTER);
481 if(obj->otyp == SCR_CREATE_MONSTER) {
482 m.defensive = obj;
483 m.has_defense = MUSE_SCR_CREATE_MONSTER;
484 }
485 }
486 botm: return((boolean)(!!m.has_defense));
487 #undef nomore
488 }
489
490 /* Perform a defensive action for a monster. Must be called immediately
491 * after find_defensive(). Return values are 0: did something, 1: died,
492 * 2: did something and can't attack again (i.e. teleported).
493 */
494 int
use_defensive(mtmp)495 use_defensive(mtmp)
496 struct monst *mtmp;
497 {
498 int i, fleetim, how = 0;
499 struct obj *otmp = m.defensive;
500 boolean vis, vismon, oseen;
501 const char *mcsa = "%s can see again.";
502
503 if ((i = precheck(mtmp, otmp)) != 0) return i;
504 vis = cansee(mtmp->mx, mtmp->my);
505 vismon = canseemon(mtmp);
506 oseen = otmp && vismon;
507
508 /* when using defensive choice to run away, we want monster to avoid
509 rushing right straight back; don't override if already scared */
510 fleetim = !mtmp->mflee ? (33 - (30 * mtmp->mhp / mtmp->mhpmax)) : 0;
511 #define m_flee(m) if (fleetim && !m->iswiz) \
512 { m->mflee = 1; m->mfleetim = fleetim; }
513
514 switch(m.has_defense) {
515 case MUSE_UNICORN_HORN:
516 if (vismon) {
517 if (otmp)
518 pline("%s uses a unicorn horn!", Monnam(mtmp));
519 else
520 pline_The("tip of %s's horn glows!", mon_nam(mtmp));
521 }
522 if (!mtmp->mcansee) {
523 mtmp->mcansee = 1;
524 mtmp->mblinded = 0;
525 if (vismon) pline(mcsa, Monnam(mtmp));
526 } else if (mtmp->mconf || mtmp->mstun) {
527 mtmp->mconf = mtmp->mstun = 0;
528 if (vismon)
529 pline("%s seems steadier now.", Monnam(mtmp));
530 } else impossible("No need for unicorn horn?");
531 return 2;
532 case MUSE_BUGLE:
533 if (vismon)
534 pline("%s plays %s!", Monnam(mtmp), doname(otmp));
535 else if (flags.soundok)
536 You_hear("a bugle playing reveille!");
537 awaken_soldiers();
538 return 2;
539 case MUSE_WAN_TELEPORTATION_SELF:
540 if ((mtmp->isshk && inhishop(mtmp))
541 || mtmp->isgd || mtmp->ispriest) return 2;
542 m_flee(mtmp);
543 mzapmsg(mtmp, otmp, TRUE);
544 otmp->spe--;
545 how = WAN_TELEPORTATION;
546 mon_tele:
547 if (tele_restrict(mtmp)) { /* mysterious force... */
548 if (vismon && how) /* mentions 'teleport' */
549 makeknown(how);
550 return 2;
551 }
552 if ((
553 #if 0
554 mon_has_amulet(mtmp) ||
555 #endif
556 On_W_tower_level(&u.uz)) && !rn2(3)) {
557 if (vismon)
558 pline("%s seems disoriented for a moment.",
559 Monnam(mtmp));
560 return 2;
561 }
562 if (oseen && how) makeknown(how);
563 rloc(mtmp);
564 return 2;
565 case MUSE_WAN_TELEPORTATION:
566 zap_oseen = oseen;
567 mzapmsg(mtmp, otmp, FALSE);
568 otmp->spe--;
569 m_using = TRUE;
570 mbhit(mtmp,rn1(8,6),mbhitm,bhito,otmp);
571 m_using = FALSE;
572 return 2;
573 case MUSE_SCR_TELEPORTATION:
574 {
575 int obj_is_cursed = otmp->cursed;
576
577 if (mtmp->isshk || mtmp->isgd || mtmp->ispriest) return 2;
578 m_flee(mtmp);
579 mreadmsg(mtmp, otmp);
580 m_useup(mtmp, otmp); /* otmp might be free'ed */
581 how = SCR_TELEPORTATION;
582 if (obj_is_cursed || mtmp->mconf) {
583 int nlev;
584 d_level flev;
585
586 if (mon_has_amulet(mtmp) || In_endgame(&u.uz)) {
587 if (vismon)
588 pline("%s seems very disoriented for a moment.",
589 Monnam(mtmp));
590 return 2;
591 }
592 nlev = random_teleport_level();
593 if (nlev == depth(&u.uz)) {
594 if (vismon)
595 pline("%s shudders for a moment.",
596 Monnam(mtmp));
597 return 2;
598 }
599 get_level(&flev, nlev);
600 migrate_to_level(mtmp, ledger_no(&flev), MIGR_RANDOM,
601 (coord *)0);
602 if (oseen) makeknown(SCR_TELEPORTATION);
603 } else goto mon_tele;
604 return 2;
605 }
606 case MUSE_WAN_DIGGING:
607 { struct trap *ttmp;
608
609 m_flee(mtmp);
610 mzapmsg(mtmp, otmp, FALSE);
611 otmp->spe--;
612 if (oseen) makeknown(WAN_DIGGING);
613 if (IS_FURNITURE(levl[mtmp->mx][mtmp->my].typ) ||
614 IS_DRAWBRIDGE(levl[mtmp->mx][mtmp->my].typ) ||
615 (is_drawbridge_wall(mtmp->mx, mtmp->my) >= 0) ||
616 (sstairs.sx && sstairs.sx == mtmp->mx &&
617 sstairs.sy == mtmp->my)) {
618 pline_The("digging ray is ineffective.");
619 return 2;
620 }
621 if (!Can_dig_down(&u.uz)) {
622 if(canseemon(mtmp))
623 pline_The("%s here is too hard to dig in.",
624 surface(mtmp->mx, mtmp->my));
625 return 2;
626 }
627 ttmp = maketrap(mtmp->mx, mtmp->my, HOLE);
628 if (!ttmp) return 2;
629 seetrap(ttmp);
630 if (vis) {
631 pline("%s has made a hole in the %s.", Monnam(mtmp),
632 surface(mtmp->mx, mtmp->my));
633 pline("%s %s through...", Monnam(mtmp),
634 is_flyer(mtmp->data) ? "dives" : "falls");
635 } else if (flags.soundok)
636 You_hear("%s crash through the %s.", something,
637 surface(mtmp->mx, mtmp->my));
638 /* we made sure that there is a level for mtmp to go to */
639 migrate_to_level(mtmp, ledger_no(&u.uz) + 1,
640 MIGR_RANDOM, (coord *)0);
641 return 2;
642 }
643 case MUSE_WAN_CREATE_MONSTER:
644 { coord cc;
645 /* pm: 0 => random, eel => aquatic, croc => amphibious */
646 struct permonst *pm = !is_pool(mtmp->mx, mtmp->my) ? 0 :
647 &mons[u.uinwater ? PM_GIANT_EEL : PM_CROCODILE];
648 struct monst *mon;
649
650 if (!enexto(&cc, mtmp->mx, mtmp->my, pm)) return 0;
651 mzapmsg(mtmp, otmp, FALSE);
652 otmp->spe--;
653 mon = makemon((struct permonst *)0, cc.x, cc.y, NO_MM_FLAGS);
654 if (mon && canspotmon(mon) && oseen)
655 makeknown(WAN_CREATE_MONSTER);
656 return 2;
657 }
658 case MUSE_SCR_CREATE_MONSTER:
659 { coord cc;
660 struct permonst *pm = 0, *fish = 0;
661 int cnt = 1;
662 struct monst *mon;
663 boolean known = FALSE;
664
665 if (!rn2(73)) cnt += rnd(4);
666 if (mtmp->mconf || otmp->cursed) cnt += 12;
667 if (mtmp->mconf) pm = fish = &mons[PM_ACID_BLOB];
668 else if (is_pool(mtmp->mx, mtmp->my))
669 fish = &mons[u.uinwater ? PM_GIANT_EEL : PM_CROCODILE];
670 mreadmsg(mtmp, otmp);
671 while(cnt--) {
672 /* `fish' potentially gives bias towards water locations;
673 `pm' is what to actually create (0 => random) */
674 if (!enexto(&cc, mtmp->mx, mtmp->my, fish)) break;
675 mon = makemon(pm, cc.x, cc.y, NO_MM_FLAGS);
676 if (mon && canspotmon(mon)) known = TRUE;
677 }
678 /* The only case where we don't use oseen. For wands, you
679 * have to be able to see the monster zap the wand to know
680 * what type it is. For teleport scrolls, you have to see
681 * the monster to know it teleported.
682 */
683 if (known)
684 makeknown(SCR_CREATE_MONSTER);
685 else if (!objects[SCR_CREATE_MONSTER].oc_name_known
686 && !objects[SCR_CREATE_MONSTER].oc_uname)
687 docall(otmp);
688 m_useup(mtmp, otmp);
689 return 2;
690 }
691 case MUSE_TRAPDOOR:
692 /* trap doors on "bottom" levels of dungeons are rock-drop
693 * trap doors, not holes in the floor. We check here for
694 * safety.
695 */
696 if (Is_botlevel(&u.uz)) return 0;
697 m_flee(mtmp);
698 if (vis) {
699 struct trap *t;
700 t = t_at(trapx,trapy);
701 pline("%s %s into a %s!", Monnam(mtmp),
702 makeplural(locomotion(mtmp->data, "jump")),
703 t->ttyp == TRAPDOOR ? "trap door" : "hole");
704 seetrap(t_at(trapx,trapy));
705 }
706
707 /* don't use rloc_to() because worm tails must "move" */
708 remove_monster(mtmp->mx, mtmp->my);
709 newsym(mtmp->mx, mtmp->my); /* update old location */
710 place_monster(mtmp, trapx, trapy);
711 if (mtmp->wormno) worm_move(mtmp);
712 newsym(trapx, trapy);
713
714 migrate_to_level(mtmp, ledger_no(&u.uz) + 1,
715 MIGR_RANDOM, (coord *)0);
716 return 2;
717 case MUSE_UPSTAIRS:
718 /* Monsters without amulets escape the dungeon and are
719 * gone for good when they leave up the up stairs.
720 * Monsters with amulets would reach the endlevel,
721 * which we cannot allow since that would leave the
722 * player stranded.
723 */
724 if (ledger_no(&u.uz) == 1) {
725 if (mon_has_special(mtmp))
726 return 0;
727 if (vismon)
728 pline("%s escapes the dungeon!", Monnam(mtmp));
729 mongone(mtmp);
730 return 2;
731 }
732 m_flee(mtmp);
733 if (Inhell && mon_has_amulet(mtmp) && !rn2(4) &&
734 (dunlev(&u.uz) < dunlevs_in_dungeon(&u.uz) - 3)) {
735 if (vismon) pline(
736 "As %s climbs the stairs, a mysterious force momentarily surrounds %s...",
737 mon_nam(mtmp), him[pronoun_gender(mtmp)]);
738 /* simpler than for the player; this will usually be
739 the Wizard and he'll immediately go right to the
740 upstairs, so there's not much point in having any
741 chance for a random position on the current level */
742 migrate_to_level(mtmp, ledger_no(&u.uz) + 1,
743 MIGR_RANDOM, (coord *)0);
744 } else {
745 if (vismon) pline("%s escapes upstairs!", Monnam(mtmp));
746 migrate_to_level(mtmp, ledger_no(&u.uz) - 1,
747 MIGR_STAIRS_DOWN, (coord *)0);
748 }
749 return 2;
750 case MUSE_DOWNSTAIRS:
751 m_flee(mtmp);
752 if (vismon) pline("%s escapes downstairs!", Monnam(mtmp));
753 migrate_to_level(mtmp, ledger_no(&u.uz) + 1,
754 MIGR_STAIRS_UP, (coord *)0);
755 return 2;
756 case MUSE_UP_LADDER:
757 m_flee(mtmp);
758 if (vismon) pline("%s escapes up the ladder!", Monnam(mtmp));
759 migrate_to_level(mtmp, ledger_no(&u.uz) - 1,
760 MIGR_LADDER_DOWN, (coord *)0);
761 return 2;
762 case MUSE_DN_LADDER:
763 m_flee(mtmp);
764 if (vismon) pline("%s escapes down the ladder!", Monnam(mtmp));
765 migrate_to_level(mtmp, ledger_no(&u.uz) + 1,
766 MIGR_LADDER_UP, (coord *)0);
767 return 2;
768 case MUSE_SSTAIRS:
769 m_flee(mtmp);
770 /* the stairs leading up from the 1st level are */
771 /* regular stairs, not sstairs. */
772 if (sstairs.up) {
773 if (vismon)
774 pline("%s escapes upstairs!", Monnam(mtmp));
775 if(Inhell) {
776 migrate_to_level(mtmp, ledger_no(&sstairs.tolev),
777 MIGR_RANDOM, (coord *)0);
778 return 2;
779 }
780 } else if (vismon)
781 pline("%s escapes downstairs!", Monnam(mtmp));
782 migrate_to_level(mtmp, ledger_no(&sstairs.tolev),
783 MIGR_SSTAIRS, (coord *)0);
784 return 2;
785 case MUSE_TELEPORT_TRAP:
786 m_flee(mtmp);
787 if (vis) {
788 pline("%s %s onto a teleport trap!", Monnam(mtmp),
789 makeplural(locomotion(mtmp->data, "jump")));
790 seetrap(t_at(trapx,trapy));
791 }
792 /* don't use rloc_to() because worm tails must "move" */
793 remove_monster(mtmp->mx, mtmp->my);
794 newsym(mtmp->mx, mtmp->my); /* update old location */
795 place_monster(mtmp, trapx, trapy);
796 if (mtmp->wormno) worm_move(mtmp);
797 newsym(trapx, trapy);
798
799 goto mon_tele;
800 case MUSE_POT_HEALING:
801 mquaffmsg(mtmp, otmp);
802 i = d(6 + 2 * bcsign(otmp), 4);
803 mtmp->mhp += i;
804 if (mtmp->mhp > mtmp->mhpmax) mtmp->mhp = ++mtmp->mhpmax;
805 if (!otmp->cursed && !mtmp->mcansee) {
806 mtmp->mcansee = 1;
807 mtmp->mblinded = 0;
808 if (vismon) pline(mcsa, Monnam(mtmp));
809 }
810 if (vismon) pline("%s looks better.", Monnam(mtmp));
811 if (oseen) makeknown(POT_HEALING);
812 m_useup(mtmp, otmp);
813 return 2;
814 case MUSE_POT_EXTRA_HEALING:
815 mquaffmsg(mtmp, otmp);
816 i = d(6 + 2 * bcsign(otmp), 8);
817 mtmp->mhp += i;
818 if (mtmp->mhp > mtmp->mhpmax)
819 mtmp->mhp = (mtmp->mhpmax += (otmp->blessed ? 5 : 2));
820 if (!mtmp->mcansee) {
821 mtmp->mcansee = 1;
822 mtmp->mblinded = 0;
823 if (vismon) pline(mcsa, Monnam(mtmp));
824 }
825 if (vismon) pline("%s looks much better.", Monnam(mtmp));
826 if (oseen) makeknown(POT_EXTRA_HEALING);
827 m_useup(mtmp, otmp);
828 return 2;
829 case MUSE_POT_FULL_HEALING:
830 mquaffmsg(mtmp, otmp);
831 if (otmp->otyp == POT_SICKNESS) unbless(otmp); /* Pestilence */
832 mtmp->mhp = (mtmp->mhpmax += (otmp->blessed ? 8 : 4));
833 if (!mtmp->mcansee && otmp->otyp != POT_SICKNESS) {
834 mtmp->mcansee = 1;
835 mtmp->mblinded = 0;
836 if (vismon) pline(mcsa, Monnam(mtmp));
837 }
838 if (vismon) pline("%s looks completely healed.", Monnam(mtmp));
839 if (oseen) makeknown(otmp->otyp);
840 m_useup(mtmp, otmp);
841 return 2;
842 case 0: return 0; /* i.e. an exploded wand */
843 default: impossible("%s wanted to perform action %d?", Monnam(mtmp),
844 m.has_defense);
845 break;
846 }
847 return 0;
848 #undef m_flee
849 }
850
851 int
rnd_defensive_item(mtmp)852 rnd_defensive_item(mtmp)
853 struct monst *mtmp;
854 {
855 struct permonst *pm = mtmp->data;
856 int difficulty = monstr[(monsndx(pm))];
857
858 if(is_animal(pm) || attacktype(pm, AT_EXPL) || mindless(mtmp->data)
859 || pm->mlet == S_GHOST
860 # ifdef KOPS
861 || pm->mlet == S_KOP
862 # endif
863 ) return 0;
864 switch (rn2(8 + (difficulty > 3) + (difficulty > 6) +
865 (difficulty > 8))) {
866 case 6: case 9:
867 if (!rn2(3)) return WAN_TELEPORTATION;
868 /* else FALLTHRU */
869 case 0: case 1:
870 return SCR_TELEPORTATION;
871 case 8: case 10:
872 if (!rn2(3)) return WAN_CREATE_MONSTER;
873 /* else FALLTHRU */
874 case 2: return SCR_CREATE_MONSTER;
875 case 3: return POT_HEALING;
876 case 4: return POT_EXTRA_HEALING;
877 case 5: return (mtmp->data != &mons[PM_PESTILENCE]) ?
878 POT_FULL_HEALING : POT_SICKNESS;
879 case 7: if (is_floater(pm) || mtmp->isshk || mtmp->isgd
880 || mtmp->ispriest
881 )
882 return 0;
883 else
884 return WAN_DIGGING;
885 }
886 /*NOTREACHED*/
887 return 0;
888 }
889
890 #define MUSE_WAN_DEATH 1
891 #define MUSE_WAN_SLEEP 2
892 #define MUSE_WAN_FIRE 3
893 #define MUSE_WAN_COLD 4
894 #define MUSE_WAN_LIGHTNING 5
895 #define MUSE_WAN_MAGIC_MISSILE 6
896 #define MUSE_WAN_STRIKING 7
897 #define MUSE_SCR_FIRE 8
898 #define MUSE_POT_PARALYSIS 9
899 #define MUSE_POT_BLINDNESS 10
900 #define MUSE_POT_CONFUSION 11
901 #define MUSE_FROST_HORN 12
902 #define MUSE_FIRE_HORN 13
903 #define MUSE_POT_ACID 14
904 /*#define MUSE_WAN_TELEPORTATION 15*/
905 #define MUSE_POT_SLEEPING 16
906 #define MUSE_SCR_EARTH 17
907
908 /* Select an offensive item/action for a monster. Returns TRUE iff one is
909 * found.
910 */
911 boolean
find_offensive(mtmp)912 find_offensive(mtmp)
913 struct monst *mtmp;
914 {
915 register struct obj *obj;
916 boolean ranged_stuff = lined_up(mtmp);
917 boolean reflection_skip = (Reflecting && rn2(2));
918 struct obj *helmet = which_armor(mtmp, W_ARMH);
919
920 m.offensive = (struct obj *)0;
921 m.has_offense = 0;
922 if (mtmp->mpeaceful || is_animal(mtmp->data) ||
923 mindless(mtmp->data) || nohands(mtmp->data))
924 return FALSE;
925 if (u.uswallow) return FALSE;
926 if (in_your_sanctuary(mtmp, 0, 0)) return FALSE;
927 if (dmgtype(mtmp->data, AD_HEAL) && !uwep
928 #ifdef TOURIST
929 && !uarmu
930 #endif
931 && !uarm && !uarmh && !uarms && !uarmg && !uarmc && !uarmf)
932 return FALSE;
933
934 if (!ranged_stuff) return FALSE;
935 #define nomore(x) if(m.has_offense==x) continue;
936 for(obj=mtmp->minvent; obj; obj=obj->nobj) {
937 /* nomore(MUSE_WAN_DEATH); */
938 if (!reflection_skip) {
939 if(obj->otyp == WAN_DEATH && obj->spe > 0) {
940 m.offensive = obj;
941 m.has_offense = MUSE_WAN_DEATH;
942 }
943 nomore(MUSE_WAN_SLEEP);
944 if(obj->otyp == WAN_SLEEP && obj->spe > 0 && multi >= 0) {
945 m.offensive = obj;
946 m.has_offense = MUSE_WAN_SLEEP;
947 }
948 nomore(MUSE_WAN_FIRE);
949 if(obj->otyp == WAN_FIRE && obj->spe > 0) {
950 m.offensive = obj;
951 m.has_offense = MUSE_WAN_FIRE;
952 }
953 nomore(MUSE_FIRE_HORN);
954 if(obj->otyp == FIRE_HORN && obj->spe > 0) {
955 m.offensive = obj;
956 m.has_offense = MUSE_FIRE_HORN;
957 }
958 nomore(MUSE_WAN_COLD);
959 if(obj->otyp == WAN_COLD && obj->spe > 0) {
960 m.offensive = obj;
961 m.has_offense = MUSE_WAN_COLD;
962 }
963 nomore(MUSE_FROST_HORN);
964 if(obj->otyp == FROST_HORN && obj->spe > 0) {
965 m.offensive = obj;
966 m.has_offense = MUSE_FROST_HORN;
967 }
968 nomore(MUSE_WAN_LIGHTNING);
969 if(obj->otyp == WAN_LIGHTNING && obj->spe > 0) {
970 m.offensive = obj;
971 m.has_offense = MUSE_WAN_LIGHTNING;
972 }
973 nomore(MUSE_WAN_MAGIC_MISSILE);
974 if(obj->otyp == WAN_MAGIC_MISSILE && obj->spe > 0) {
975 m.offensive = obj;
976 m.has_offense = MUSE_WAN_MAGIC_MISSILE;
977 }
978 }
979 nomore(MUSE_WAN_STRIKING);
980 if(obj->otyp == WAN_STRIKING && obj->spe > 0) {
981 m.offensive = obj;
982 m.has_offense = MUSE_WAN_STRIKING;
983 }
984 nomore(MUSE_POT_PARALYSIS);
985 if(obj->otyp == POT_PARALYSIS && multi >= 0) {
986 m.offensive = obj;
987 m.has_offense = MUSE_POT_PARALYSIS;
988 }
989 nomore(MUSE_POT_BLINDNESS);
990 if(obj->otyp == POT_BLINDNESS) {
991 m.offensive = obj;
992 m.has_offense = MUSE_POT_BLINDNESS;
993 }
994 nomore(MUSE_POT_CONFUSION);
995 if(obj->otyp == POT_CONFUSION) {
996 m.offensive = obj;
997 m.has_offense = MUSE_POT_CONFUSION;
998 }
999 nomore(MUSE_POT_SLEEPING);
1000 if(obj->otyp == POT_SLEEPING) {
1001 m.offensive = obj;
1002 m.has_offense = MUSE_POT_SLEEPING;
1003 }
1004 nomore(MUSE_POT_ACID);
1005 if(obj->otyp == POT_ACID) {
1006 m.offensive = obj;
1007 m.has_offense = MUSE_POT_ACID;
1008 }
1009 /* we can safely put this scroll here since the locations that
1010 * are in a 1 square radius are a subset of the locations that
1011 * are in wand range
1012 */
1013 nomore(MUSE_SCR_EARTH);
1014 if (obj->otyp == SCR_EARTH
1015 && ((helmet && is_metallic(helmet)) ||
1016 mtmp->mconf || amorphous(mtmp->data) ||
1017 passes_walls(mtmp->data) ||
1018 noncorporeal(mtmp->data) ||
1019 unsolid(mtmp->data) || !rn2(10))
1020 && dist2(mtmp->mx,mtmp->my,mtmp->mux,mtmp->muy) <= 2
1021 && mtmp->mcansee && haseyes(mtmp->data)
1022 #ifdef REINCARNATION
1023 && !Is_rogue_level(&u.uz)
1024 #endif
1025 && (!In_endgame(&u.uz) || Is_earthlevel(&u.uz))) {
1026 m.offensive = obj;
1027 m.has_offense = MUSE_SCR_EARTH;
1028 }
1029 #if 0
1030 nomore(MUSE_SCR_FIRE);
1031 if (obj->otyp == SCR_FIRE && resists_fire(mtmp)
1032 && dist2(mtmp->mx,mtmp->my,mtmp->mux,mtmp->muy) <= 2
1033 && mtmp->mcansee && haseyes(mtmp->data)) {
1034 m.offensive = obj;
1035 m.has_offense = MUSE_SCR_FIRE;
1036 }
1037 #endif
1038 }
1039 return((boolean)(!!m.has_offense));
1040 #undef nomore
1041 }
1042
1043 STATIC_PTR
1044 int
mbhitm(mtmp,otmp)1045 mbhitm(mtmp, otmp)
1046 register struct monst *mtmp;
1047 register struct obj *otmp;
1048 {
1049 int tmp;
1050
1051 boolean reveal_invis = FALSE;
1052 if (mtmp != &youmonst) {
1053 mtmp->msleeping = 0;
1054 if (mtmp->m_ap_type) seemimic(mtmp);
1055 }
1056 switch(otmp->otyp) {
1057 case WAN_STRIKING:
1058 reveal_invis = TRUE;
1059 if (mtmp == &youmonst) {
1060 if (zap_oseen) makeknown(WAN_STRIKING);
1061 if (Antimagic) {
1062 shieldeff(u.ux, u.uy);
1063 pline("Boing!");
1064 } else if (rnd(20) < 10 + u.uac) {
1065 pline_The("wand hits you!");
1066 tmp = d(2,12);
1067 if(Half_spell_damage) tmp = (tmp+1) / 2;
1068 losehp(tmp, "wand", KILLED_BY_AN);
1069 } else pline_The("wand misses you.");
1070 stop_occupation();
1071 nomul(0);
1072 } else if (resists_magm(mtmp)) {
1073 shieldeff(mtmp->mx, mtmp->my);
1074 pline("Boing!");
1075 } else if (rnd(20) < 10+find_mac(mtmp)) {
1076 tmp = d(2,12);
1077 hit("wand", mtmp, exclam(tmp));
1078 (void) resist(mtmp, otmp->oclass, tmp, TELL);
1079 if (cansee(mtmp->mx, mtmp->my) && zap_oseen)
1080 makeknown(WAN_STRIKING);
1081 } else {
1082 miss("wand", mtmp);
1083 if (cansee(mtmp->mx, mtmp->my) && zap_oseen)
1084 makeknown(WAN_STRIKING);
1085 }
1086 break;
1087 case WAN_TELEPORTATION:
1088 if (mtmp == &youmonst) {
1089 if (zap_oseen) makeknown(WAN_TELEPORTATION);
1090 tele();
1091 } else {
1092 /* for consistency with zap.c, don't identify */
1093 if (mtmp->ispriest &&
1094 *in_rooms(mtmp->mx, mtmp->my, TEMPLE)) {
1095 if (cansee(mtmp->mx, mtmp->my))
1096 pline("%s resists the magic!", Monnam(mtmp));
1097 mtmp->msleeping = 0;
1098 if(mtmp->m_ap_type) seemimic(mtmp);
1099 } else if (!tele_restrict(mtmp))
1100 rloc(mtmp);
1101 }
1102 break;
1103 case WAN_CANCELLATION:
1104 case SPE_CANCELLATION:
1105 cancel_monst(mtmp, otmp, FALSE, TRUE, FALSE);
1106 break;
1107 }
1108 if (reveal_invis) {
1109 if (mtmp->mhp > 0 && cansee(bhitpos.x,bhitpos.y)
1110 && !canspotmon(mtmp))
1111 map_invisible(bhitpos.x, bhitpos.y);
1112 }
1113 return 0;
1114 }
1115
1116 /* A modified bhit() for monsters. Based on bhit() in zap.c. Unlike
1117 * buzz(), bhit() doesn't take into account the possibility of a monster
1118 * zapping you, so we need a special function for it. (Unless someone wants
1119 * to merge the two functions...)
1120 */
1121 STATIC_OVL void
mbhit(mon,range,fhitm,fhito,obj)1122 mbhit(mon,range,fhitm,fhito,obj)
1123 struct monst *mon; /* monster shooting the wand */
1124 register int range; /* direction and range */
1125 int FDECL((*fhitm),(MONST_P,OBJ_P));
1126 int FDECL((*fhito),(OBJ_P,OBJ_P)); /* fns called when mon/obj hit */
1127 struct obj *obj; /* 2nd arg to fhitm/fhito */
1128 {
1129 register struct monst *mtmp;
1130 register struct obj *otmp;
1131 register uchar typ;
1132 int ddx, ddy;
1133
1134 bhitpos.x = mon->mx;
1135 bhitpos.y = mon->my;
1136 ddx = sgn(mon->mux - mon->mx);
1137 ddy = sgn(mon->muy - mon->my);
1138
1139 while(range-- > 0) {
1140 int x,y;
1141
1142 bhitpos.x += ddx;
1143 bhitpos.y += ddy;
1144 x = bhitpos.x; y = bhitpos.y;
1145
1146 if (!isok(x,y)) {
1147 bhitpos.x -= ddx;
1148 bhitpos.y -= ddy;
1149 break;
1150 }
1151 if (find_drawbridge(&x,&y))
1152 switch (obj->otyp) {
1153 case WAN_STRIKING:
1154 destroy_drawbridge(x,y);
1155 }
1156 if(bhitpos.x==u.ux && bhitpos.y==u.uy) {
1157 (*fhitm)(&youmonst, obj);
1158 range -= 3;
1159 } else if(MON_AT(bhitpos.x, bhitpos.y)){
1160 mtmp = m_at(bhitpos.x,bhitpos.y);
1161 if (cansee(bhitpos.x,bhitpos.y) && !canspotmon(mtmp))
1162 map_invisible(bhitpos.x, bhitpos.y);
1163 (*fhitm)(mtmp, obj);
1164 range -= 3;
1165 }
1166 /* modified by GAN to hit all objects */
1167 if(fhito){
1168 int hitanything = 0;
1169 register struct obj *next_obj;
1170
1171 for(otmp = level.objects[bhitpos.x][bhitpos.y];
1172 otmp; otmp = next_obj) {
1173 /* Fix for polymorph bug, Tim Wright */
1174 next_obj = otmp->nexthere;
1175 hitanything += (*fhito)(otmp, obj);
1176 }
1177 if(hitanything) range--;
1178 }
1179 typ = levl[bhitpos.x][bhitpos.y].typ;
1180 if(IS_DOOR(typ) || typ == SDOOR) {
1181 switch (obj->otyp) {
1182 /* note: monsters don't use opening or locking magic
1183 at present, but keep these as placeholders */
1184 case WAN_OPENING:
1185 case WAN_LOCKING:
1186 case WAN_STRIKING:
1187 if (doorlock(obj, bhitpos.x, bhitpos.y)) {
1188 makeknown(obj->otyp);
1189 /* if a shop door gets broken, add it to
1190 the shk's fix list (no cost to player) */
1191 if (levl[bhitpos.x][bhitpos.y].doormask ==
1192 D_BROKEN &&
1193 *in_rooms(bhitpos.x, bhitpos.y, SHOPBASE))
1194 add_damage(bhitpos.x, bhitpos.y, 0L);
1195 }
1196 break;
1197 }
1198 }
1199 if(!ZAP_POS(typ) || (IS_DOOR(typ) &&
1200 (levl[bhitpos.x][bhitpos.y].doormask & (D_LOCKED | D_CLOSED)))
1201 ) {
1202 bhitpos.x -= ddx;
1203 bhitpos.y -= ddy;
1204 break;
1205 }
1206 }
1207 }
1208
1209 /* Perform an offensive action for a monster. Must be called immediately
1210 * after find_offensive(). Return values are same as use_defensive().
1211 */
1212 int
use_offensive(mtmp)1213 use_offensive(mtmp)
1214 struct monst *mtmp;
1215 {
1216 int i;
1217 struct obj *otmp = m.offensive;
1218 boolean oseen;
1219
1220 /* offensive potions are not drunk, they're thrown */
1221 if (otmp->oclass != POTION_CLASS && (i = precheck(mtmp, otmp)) != 0)
1222 return i;
1223 oseen = otmp && canseemon(mtmp);
1224
1225 switch(m.has_offense) {
1226 case MUSE_WAN_DEATH:
1227 case MUSE_WAN_SLEEP:
1228 case MUSE_WAN_FIRE:
1229 case MUSE_WAN_COLD:
1230 case MUSE_WAN_LIGHTNING:
1231 case MUSE_WAN_MAGIC_MISSILE:
1232 mzapmsg(mtmp, otmp, FALSE);
1233 otmp->spe--;
1234 if (oseen) makeknown(otmp->otyp);
1235 m_using = TRUE;
1236 buzz((int)(-30 - (otmp->otyp - WAN_MAGIC_MISSILE)),
1237 (otmp->otyp == WAN_MAGIC_MISSILE) ? 2 : 6,
1238 mtmp->mx, mtmp->my,
1239 sgn(mtmp->mux-mtmp->mx), sgn(mtmp->muy-mtmp->my));
1240 m_using = FALSE;
1241 return (mtmp->mhp <= 0) ? 1 : 2;
1242 case MUSE_FIRE_HORN:
1243 case MUSE_FROST_HORN:
1244 if (oseen) {
1245 makeknown(otmp->otyp);
1246 pline("%s plays a %s!", Monnam(mtmp), xname(otmp));
1247 } else
1248 You_hear("a horn being played.");
1249 otmp->spe--;
1250 m_using = TRUE;
1251 buzz(-30 - ((otmp->otyp==FROST_HORN) ? AD_COLD-1 : AD_FIRE-1),
1252 rn1(6,6), mtmp->mx, mtmp->my,
1253 sgn(mtmp->mux-mtmp->mx), sgn(mtmp->muy-mtmp->my));
1254 m_using = FALSE;
1255 return (mtmp->mhp <= 0) ? 1 : 2;
1256 case MUSE_WAN_TELEPORTATION:
1257 case MUSE_WAN_STRIKING:
1258 zap_oseen = oseen;
1259 mzapmsg(mtmp, otmp, FALSE);
1260 otmp->spe--;
1261 m_using = TRUE;
1262 mbhit(mtmp,rn1(8,6),mbhitm,bhito,otmp);
1263 m_using = FALSE;
1264 return 2;
1265 case MUSE_SCR_EARTH:
1266 {
1267 /* TODO: handle steeds */
1268 register int x, y;
1269 /* don't use monster fields after killing it */
1270 boolean confused = (mtmp->mconf ? TRUE : FALSE);
1271 int mmx = mtmp->mx, mmy = mtmp->my;
1272
1273 mreadmsg(mtmp, otmp);
1274 /* Identify the scroll */
1275 if (canspotmon(mtmp)) {
1276 pline_The("%s rumbles %s %s!", ceiling(mtmp->mx, mtmp->my),
1277 otmp->blessed ? "around" : "above",
1278 mon_nam(mtmp));
1279 if (oseen) makeknown(otmp->otyp);
1280 } else if (cansee(mtmp->mx, mtmp->my)) {
1281 pline_The("%s rumbles in the middle of nowhere!",
1282 ceiling(mtmp->mx, mtmp->my));
1283 if (mtmp->minvis)
1284 map_invisible(mtmp->mx, mtmp->my);
1285 if (oseen) makeknown(otmp->otyp);
1286 }
1287
1288 /* Loop through the surrounding squares */
1289 for (x = mmx-1; x <= mmx+1; x++) {
1290 for (y = mmy-1; y <= mmy+1; y++) {
1291 /* Is this a suitable spot? */
1292 if (isok(x, y) && !closed_door(x, y) &&
1293 !IS_ROCK(levl[x][y].typ) &&
1294 !IS_AIR(levl[x][y].typ) &&
1295 (((x == mmx) && (y == mmy)) ?
1296 !otmp->blessed : !otmp->cursed) &&
1297 (x != u.ux || y != u.uy)) {
1298 register struct obj *otmp2;
1299 register struct monst *mtmp2;
1300
1301 /* Make the object(s) */
1302 otmp2 = mksobj(confused ? ROCK : BOULDER,
1303 FALSE, FALSE);
1304 if (!otmp2) continue; /* Shouldn't happen */
1305 otmp2->quan = confused ? rn1(5,2) : 1;
1306 otmp2->owt = weight(otmp2);
1307
1308 /* Find the monster here (might be same as mtmp) */
1309 mtmp2 = m_at(x, y);
1310 if (mtmp2 && !amorphous(mtmp2->data) &&
1311 !passes_walls(mtmp2->data) &&
1312 !noncorporeal(mtmp2->data) &&
1313 !unsolid(mtmp2->data)) {
1314 struct obj *helmet = which_armor(mtmp2, W_ARMH);
1315 int mdmg;
1316
1317 if (cansee(mtmp2->mx, mtmp2->my)) {
1318 pline("%s is hit by %s!", Monnam(mtmp2),
1319 doname(otmp2));
1320 if (mtmp2->minvis && !canspotmon(mtmp2))
1321 map_invisible(mtmp2->mx, mtmp2->my);
1322 }
1323 mdmg = dmgval(otmp2, mtmp2) * otmp2->quan;
1324 if (helmet) {
1325 if(is_metallic(helmet)) {
1326 if (canspotmon(mtmp2))
1327 pline("Fortunately, %s is wearing a hard helmet.", mon_nam(mtmp2));
1328 else if (flags.soundok)
1329 You_hear("a clanging sound.");
1330 if (mdmg > 2) mdmg = 2;
1331 } else {
1332 if (canspotmon(mtmp2))
1333 pline("%s's %s does not protect %s.",
1334 Monnam(mtmp2), xname(helmet),
1335 him[pronoun_gender(mtmp2)]);
1336 }
1337 }
1338 mtmp2->mhp -= mdmg;
1339 if (mtmp2->mhp <= 0) {
1340 pline("%s is killed.", Monnam(mtmp2));
1341 mondied(mtmp2);
1342 }
1343 }
1344 /* Drop the rock/boulder to the floor */
1345 if (!flooreffects(otmp2, x, y, "fall")) {
1346 place_object(otmp2, x, y);
1347 stackobj(otmp2);
1348 newsym(x, y); /* map the rock */
1349 }
1350 }
1351 }
1352 }
1353 m_useup(mtmp, otmp);
1354 /* Attack the player */
1355 if (dist2(mmx, mmy, u.ux, u.uy) == 1 && !otmp->cursed) {
1356 int dmg;
1357 struct obj *otmp2;
1358
1359 /* Okay, _you_ write this without repeating the code */
1360 otmp2 = mksobj(confused ? ROCK : BOULDER,
1361 FALSE, FALSE);
1362 if (!otmp2) goto xxx_noobj; /* Shouldn't happen */
1363 otmp2->quan = confused ? rn1(5,2) : 1;
1364 otmp2->owt = weight(otmp2);
1365 if (!amorphous(youmonst.data) &&
1366 !Passes_walls &&
1367 !noncorporeal(youmonst.data) &&
1368 !unsolid(youmonst.data)) {
1369 You("are hit by %s!", doname(otmp2));
1370 dmg = dmgval(otmp2, &youmonst) * otmp2->quan;
1371 if (uarmh) {
1372 if(is_metallic(uarmh)) {
1373 pline("Fortunately, you are wearing a hard helmet.");
1374 if (dmg > 2) dmg = 2;
1375 } else if (flags.verbose) {
1376 Your("%s does not protect you.",
1377 xname(uarmh));
1378 }
1379 }
1380 } else
1381 dmg = 0;
1382 if (!flooreffects(otmp2, u.ux, u.uy, "fall")) {
1383 place_object(otmp2, u.ux, u.uy);
1384 stackobj(otmp2);
1385 newsym(u.ux, u.uy);
1386 }
1387 if (dmg) losehp(dmg, "scroll of earth", KILLED_BY_AN);
1388 }
1389 xxx_noobj:
1390
1391 return (mtmp->mhp <= 0) ? 1 : 2;
1392 }
1393 #if 0
1394 case MUSE_SCR_FIRE:
1395 {
1396 boolean vis = cansee(mtmp->mx, mtmp->my);
1397
1398 mreadmsg(mtmp, otmp);
1399 if (mtmp->mconf) {
1400 if (vis)
1401 pline("Oh, what a pretty fire!");
1402 } else {
1403 struct monst *mtmp2;
1404 int num;
1405
1406 if (vis)
1407 pline_The("scroll erupts in a tower of flame!");
1408 shieldeff(mtmp->mx, mtmp->my);
1409 pline("%s is uninjured.", Monnam(mtmp));
1410 (void) destroy_mitem(mtmp, SCROLL_CLASS, AD_FIRE);
1411 (void) destroy_mitem(mtmp, SPBOOK_CLASS, AD_FIRE);
1412 (void) destroy_mitem(mtmp, POTION_CLASS, AD_FIRE);
1413 num = (2*(rn1(3, 3) + 2 * bcsign(otmp)) + 1)/3;
1414 if (Fire_resistance)
1415 You("are not harmed.");
1416 burn_away_slime();
1417 if (Half_spell_damage) num = (num+1) / 2;
1418 else losehp(num, "scroll of fire", KILLED_BY_AN);
1419 for(mtmp2 = fmon; mtmp2; mtmp2 = mtmp2->nmon) {
1420 if(DEADMONSTER(mtmp2)) continue;
1421 if(mtmp == mtmp2) continue;
1422 if(dist2(mtmp2->mx,mtmp2->my,mtmp->mx,mtmp->my) < 3){
1423 if (resists_fire(mtmp2)) continue;
1424 mtmp2->mhp -= num;
1425 if (resists_cold(mtmp2))
1426 mtmp2->mhp -= 3*num;
1427 if(mtmp2->mhp < 1) {
1428 mondied(mtmp2);
1429 break;
1430 }
1431 }
1432 }
1433 }
1434 return 2;
1435 }
1436 #endif /* 0 */
1437 case MUSE_POT_PARALYSIS:
1438 case MUSE_POT_BLINDNESS:
1439 case MUSE_POT_CONFUSION:
1440 case MUSE_POT_SLEEPING:
1441 case MUSE_POT_ACID:
1442 /* Note: this setting of dknown doesn't suffice. A monster
1443 * which is out of sight might throw and it hits something _in_
1444 * sight, a problem not existing with wands because wand rays
1445 * are not objects. Also set dknown in mthrowu.c.
1446 */
1447 if (cansee(mtmp->mx, mtmp->my)) {
1448 otmp->dknown = 1;
1449 pline("%s hurls %s!", Monnam(mtmp),
1450 singular(otmp, doname));
1451 }
1452 m_throw(mtmp, mtmp->mx, mtmp->my, sgn(mtmp->mux-mtmp->mx),
1453 sgn(mtmp->muy-mtmp->my),
1454 distmin(mtmp->mx,mtmp->my,mtmp->mux,mtmp->muy), otmp);
1455 return 2;
1456 case 0: return 0; /* i.e. an exploded wand */
1457 default: impossible("%s wanted to perform action %d?", Monnam(mtmp),
1458 m.has_offense);
1459 break;
1460 }
1461 return 0;
1462 }
1463
1464 int
rnd_offensive_item(mtmp)1465 rnd_offensive_item(mtmp)
1466 struct monst *mtmp;
1467 {
1468 struct permonst *pm = mtmp->data;
1469 int difficulty = monstr[(monsndx(pm))];
1470
1471 if(is_animal(pm) || attacktype(pm, AT_EXPL) || mindless(mtmp->data)
1472 || pm->mlet == S_GHOST
1473 # ifdef KOPS
1474 || pm->mlet == S_KOP
1475 # endif
1476 ) return 0;
1477 if (difficulty > 7 && !rn2(35)) return WAN_DEATH;
1478 switch (rn2(9 - (difficulty < 4) + 4 * (difficulty > 6))) {
1479 case 0: {
1480 struct obj *helmet = which_armor(mtmp, W_ARMH);
1481
1482 if ((helmet && is_metallic(helmet)) || amorphous(pm) || passes_walls(pm) || noncorporeal(pm) || unsolid(pm))
1483 return SCR_EARTH;
1484 } /* fall through */
1485 case 1: return WAN_STRIKING;
1486 case 2: return POT_ACID;
1487 case 3: return POT_CONFUSION;
1488 case 4: return POT_BLINDNESS;
1489 case 5: return POT_SLEEPING;
1490 case 6: return POT_PARALYSIS;
1491 case 7: case 8:
1492 return WAN_MAGIC_MISSILE;
1493 case 9: return WAN_SLEEP;
1494 case 10: return WAN_FIRE;
1495 case 11: return WAN_COLD;
1496 case 12: return WAN_LIGHTNING;
1497 }
1498 /*NOTREACHED*/
1499 return 0;
1500 }
1501
1502 #define MUSE_POT_GAIN_LEVEL 1
1503 #define MUSE_WAN_MAKE_INVISIBLE 2
1504 #define MUSE_POT_INVISIBILITY 3
1505 #define MUSE_POLY_TRAP 4
1506 #define MUSE_WAN_POLYMORPH 5
1507 #define MUSE_POT_SPEED 6
1508 #define MUSE_WAN_SPEED_MONSTER 7
1509 #define MUSE_BULLWHIP 8
1510 #define MUSE_POT_POLYMORPH 9
1511
1512 boolean
find_misc(mtmp)1513 find_misc(mtmp)
1514 struct monst *mtmp;
1515 {
1516 register struct obj *obj;
1517 struct permonst *mdat = mtmp->data;
1518 int x = mtmp->mx, y = mtmp->my;
1519 struct trap *t;
1520 int xx, yy;
1521 boolean immobile = (mdat->mmove == 0);
1522 boolean stuck = (mtmp == u.ustuck);
1523
1524 m.misc = (struct obj *)0;
1525 m.has_misc = 0;
1526 if (is_animal(mdat) || mindless(mdat))
1527 return 0;
1528 if (u.uswallow && stuck) return FALSE;
1529
1530 /* We arbitrarily limit to times when a player is nearby for the
1531 * same reason as Junior Pac-Man doesn't have energizers eaten until
1532 * you can see them...
1533 */
1534 if(dist2(x, y, mtmp->mux, mtmp->muy) > 36)
1535 return FALSE;
1536
1537 if (!stuck && !immobile && !mtmp->cham && monstr[monsndx(mdat)] < 6) {
1538 boolean ignore_boulders = (verysmall(mdat) ||
1539 throws_rocks(mdat) ||
1540 passes_walls(mdat));
1541 for(xx = x-1; xx <= x+1; xx++)
1542 for(yy = y-1; yy <= y+1; yy++)
1543 if (isok(xx,yy) && (xx != u.ux || yy != u.uy))
1544 if (mdat != &mons[PM_GRID_BUG] || xx == x || yy == y)
1545 if (/* (xx==x && yy==y) || */ !level.monsters[xx][yy])
1546 if ((t = t_at(xx, yy)) != 0 &&
1547 (ignore_boulders || !sobj_at(BOULDER, xx, yy))
1548 && !onscary(xx, yy, mtmp)) {
1549 if (t->ttyp == POLY_TRAP) {
1550 trapx = xx;
1551 trapy = yy;
1552 m.has_misc = MUSE_POLY_TRAP;
1553 return TRUE;
1554 }
1555 }
1556 }
1557 if (nohands(mdat))
1558 return 0;
1559
1560 #define nomore(x) if(m.has_misc==x) continue;
1561 for(obj=mtmp->minvent; obj; obj=obj->nobj) {
1562 /* Monsters shouldn't recognize cursed items; this kludge is */
1563 /* necessary to prevent serious problems though... */
1564 if(obj->otyp == POT_GAIN_LEVEL && (!obj->cursed ||
1565 (!mtmp->isgd && !mtmp->isshk && !mtmp->ispriest))) {
1566 m.misc = obj;
1567 m.has_misc = MUSE_POT_GAIN_LEVEL;
1568 }
1569 nomore(MUSE_BULLWHIP);
1570 if(obj->otyp == BULLWHIP && (MON_WEP(mtmp) == obj) &&
1571 distu(mtmp->mx,mtmp->my)==1 && uwep && !mtmp->mpeaceful) {
1572 m.misc = obj;
1573 m.has_misc = MUSE_BULLWHIP;
1574 }
1575 /* Note: peaceful/tame monsters won't make themselves
1576 * invisible unless you can see them. Not really right, but...
1577 */
1578 nomore(MUSE_WAN_MAKE_INVISIBLE);
1579 if(obj->otyp == WAN_MAKE_INVISIBLE && obj->spe > 0 &&
1580 !mtmp->minvis && !mtmp->invis_blkd &&
1581 (!mtmp->mpeaceful || See_invisible) &&
1582 (mdat != &mons[PM_MEDUSA] || mtmp->mcan)) {
1583 m.misc = obj;
1584 m.has_misc = MUSE_WAN_MAKE_INVISIBLE;
1585 }
1586 nomore(MUSE_POT_INVISIBILITY);
1587 if(obj->otyp == POT_INVISIBILITY &&
1588 !mtmp->minvis && !mtmp->invis_blkd &&
1589 (!mtmp->mpeaceful || See_invisible) &&
1590 (mdat != &mons[PM_MEDUSA] || mtmp->mcan)) {
1591 m.misc = obj;
1592 m.has_misc = MUSE_POT_INVISIBILITY;
1593 }
1594 nomore(MUSE_WAN_SPEED_MONSTER);
1595 if(obj->otyp == WAN_SPEED_MONSTER && obj->spe > 0
1596 && mtmp->mspeed != MFAST && !mtmp->isgd) {
1597 m.misc = obj;
1598 m.has_misc = MUSE_WAN_SPEED_MONSTER;
1599 }
1600 nomore(MUSE_POT_SPEED);
1601 if(obj->otyp == POT_SPEED && mtmp->mspeed != MFAST
1602 && !mtmp->isgd) {
1603 m.misc = obj;
1604 m.has_misc = MUSE_POT_SPEED;
1605 }
1606 nomore(MUSE_WAN_POLYMORPH);
1607 if(obj->otyp == WAN_POLYMORPH && obj->spe > 0 && !mtmp->cham
1608 && monstr[monsndx(mdat)] < 6) {
1609 m.misc = obj;
1610 m.has_misc = MUSE_WAN_POLYMORPH;
1611 }
1612 nomore(MUSE_POT_POLYMORPH);
1613 if(obj->otyp == POT_POLYMORPH && !mtmp->cham
1614 && monstr[monsndx(mdat)] < 6) {
1615 m.misc = obj;
1616 m.has_misc = MUSE_POT_POLYMORPH;
1617 }
1618 }
1619 return((boolean)(!!m.has_misc));
1620 #undef nomore
1621 }
1622
1623 int
use_misc(mtmp)1624 use_misc(mtmp)
1625 struct monst *mtmp;
1626 {
1627 int i;
1628 struct obj *otmp = m.misc;
1629 boolean vis, vismon, oseen;
1630 char nambuf[BUFSZ];
1631
1632 if ((i = precheck(mtmp, otmp)) != 0) return i;
1633 vis = cansee(mtmp->mx, mtmp->my);
1634 vismon = canseemon(mtmp);
1635 oseen = otmp && vismon;
1636
1637 switch(m.has_misc) {
1638 case MUSE_POT_GAIN_LEVEL:
1639 mquaffmsg(mtmp, otmp);
1640 if (otmp->cursed) {
1641 if (Can_rise_up(mtmp->mx, mtmp->my, &u.uz)) {
1642 register int tolev = depth(&u.uz)-1;
1643 d_level tolevel;
1644
1645 get_level(&tolevel, tolev);
1646 /* insurance against future changes... */
1647 if(on_level(&tolevel, &u.uz)) goto skipmsg;
1648 if (vismon) {
1649 pline("%s rises up, through the %s!",
1650 Monnam(mtmp), ceiling(mtmp->mx, mtmp->my));
1651 if(!objects[POT_GAIN_LEVEL].oc_name_known
1652 && !objects[POT_GAIN_LEVEL].oc_uname)
1653 docall(otmp);
1654 }
1655 m_useup(mtmp, otmp);
1656 migrate_to_level(mtmp, ledger_no(&tolevel),
1657 MIGR_RANDOM, (coord *)0);
1658 return 2;
1659 } else {
1660 skipmsg:
1661 if (vismon) {
1662 pline("%s looks uneasy.", Monnam(mtmp));
1663 if(!objects[POT_GAIN_LEVEL].oc_name_known
1664 && !objects[POT_GAIN_LEVEL].oc_uname)
1665 docall(otmp);
1666 }
1667 m_useup(mtmp, otmp);
1668 return 2;
1669 }
1670 }
1671 if (vismon) pline("%s seems more experienced.", Monnam(mtmp));
1672 if (oseen) makeknown(POT_GAIN_LEVEL);
1673 m_useup(mtmp, otmp);
1674 if (!grow_up(mtmp,(struct monst *)0)) return 1;
1675 /* grew into genocided monster */
1676 return 2;
1677 case MUSE_WAN_MAKE_INVISIBLE:
1678 case MUSE_POT_INVISIBILITY:
1679 if (otmp->otyp == WAN_MAKE_INVISIBLE) {
1680 mzapmsg(mtmp, otmp, TRUE);
1681 otmp->spe--;
1682 } else
1683 mquaffmsg(mtmp, otmp);
1684 /* format monster's name before altering its visibility */
1685 Strcpy(nambuf, See_invisible ? Monnam(mtmp) : mon_nam(mtmp));
1686 mon_set_minvis(mtmp);
1687 if (vismon && mtmp->minvis) { /* was seen, now invisible */
1688 if (See_invisible)
1689 pline("%s body takes on a %s transparency.",
1690 s_suffix(nambuf),
1691 Hallucination ? "normal" : "strange");
1692 else
1693 pline("Suddenly you cannot see %s.", nambuf);
1694 if (oseen) makeknown(otmp->otyp);
1695 }
1696 if (otmp->otyp == POT_INVISIBILITY) {
1697 if (otmp->cursed) you_aggravate(mtmp);
1698 m_useup(mtmp, otmp);
1699 }
1700 return 2;
1701 case MUSE_WAN_SPEED_MONSTER:
1702 mzapmsg(mtmp, otmp, TRUE);
1703 otmp->spe--;
1704 mon_adjust_speed(mtmp, 1);
1705 return 2;
1706 case MUSE_POT_SPEED:
1707 mquaffmsg(mtmp, otmp);
1708 /* note difference in potion effect due to substantially
1709 different methods of maintaining speed ratings:
1710 player's character becomes "very fast" temporarily;
1711 monster becomes "one stage faster" permanently */
1712 if (vismon)
1713 pline("%s is suddenly moving faster.", Monnam(mtmp));
1714 if (oseen) makeknown(POT_SPEED);
1715 mon_adjust_speed(mtmp, 1);
1716 m_useup(mtmp, otmp);
1717 return 2;
1718 case MUSE_WAN_POLYMORPH:
1719 mzapmsg(mtmp, otmp, TRUE);
1720 otmp->spe--;
1721 (void) newcham(mtmp, rndmonst());
1722 if (oseen) makeknown(WAN_POLYMORPH);
1723 return 2;
1724 case MUSE_POT_POLYMORPH:
1725 mquaffmsg(mtmp, otmp);
1726 if (vismon) pline("%s suddenly mutates!", Monnam(mtmp));
1727 (void) newcham(mtmp, rndmonst());
1728 if (oseen) makeknown(POT_POLYMORPH);
1729 m_useup(mtmp, otmp);
1730 return 2;
1731 case MUSE_POLY_TRAP:
1732 if (vismon)
1733 pline("%s deliberately %s onto a polymorph trap!",
1734 Monnam(mtmp),
1735 makeplural(locomotion(mtmp->data, "jump")));
1736 if (vis) seetrap(t_at(trapx,trapy));
1737
1738 /* don't use rloc() due to worms */
1739 remove_monster(mtmp->mx, mtmp->my);
1740 newsym(mtmp->mx, mtmp->my);
1741 place_monster(mtmp, trapx, trapy);
1742 if (mtmp->wormno) worm_move(mtmp);
1743 newsym(trapx, trapy);
1744
1745 (void) newcham(mtmp, (struct permonst *)0);
1746 return 2;
1747 case MUSE_BULLWHIP:
1748 /* attempt to disarm hero */
1749 if (uwep && !rn2(5)) {
1750 const char *The_whip = vismon ? "The bullwhip" : "A whip";
1751 int where_to = rn2(4);
1752 struct obj *obj = uwep;
1753 const char *hand;
1754 char the_weapon[BUFSZ];
1755
1756 Strcpy(the_weapon, the(xname(obj)));
1757 hand = body_part(HAND);
1758 if (bimanual(obj)) hand = makeplural(hand);
1759
1760 if (vismon)
1761 pline("%s flicks a bullwhip towards your %s!",
1762 Monnam(mtmp), hand);
1763 if (obj->otyp == HEAVY_IRON_BALL) {
1764 pline("%s fails to wrap around %s.",
1765 The_whip, the_weapon);
1766 return 1;
1767 }
1768 pline("%s wraps around %s you're wielding!",
1769 The_whip, the_weapon);
1770 if (obj->cursed) {
1771 pline("%s is welded to your %s%c",
1772 (obj->quan == 1L) ? "It" : "They",
1773 hand, !obj->bknown ? '!' : '.');
1774 obj->bknown = 1;
1775 where_to = 0;
1776 }
1777 if (!where_to) {
1778 pline_The("whip slips free."); /* not `The_whip' */
1779 return 1;
1780 }
1781 freeinv(obj);
1782 uwepgone();
1783 switch (where_to) {
1784 case 1: /* onto floor beneath mon */
1785 pline("%s yanks %s from your %s!", Monnam(mtmp),
1786 the_weapon, hand);
1787 if (obj->otyp == CRYSKNIFE && (!obj->oerodeproof || !rn2(10))) {
1788 obj->otyp = WORM_TOOTH;
1789 obj->oerodeproof = 0;
1790 }
1791 place_object(obj, mtmp->mx, mtmp->my);
1792 break;
1793 case 2: /* onto floor beneath you */
1794 pline("%s yanks %s to the %s!", Monnam(mtmp),
1795 the_weapon, surface(u.ux, u.uy));
1796 dropy(obj);
1797 break;
1798 case 3: /* into mon's inventory */
1799 pline("%s snatches %s!", Monnam(mtmp),
1800 the_weapon);
1801 (void) mpickobj(mtmp,obj);
1802 break;
1803 }
1804 return 1;
1805 }
1806 return 0;
1807 case 0: return 0; /* i.e. an exploded wand */
1808 default: impossible("%s wanted to perform action %d?", Monnam(mtmp),
1809 m.has_misc);
1810 break;
1811 }
1812 return 0;
1813 }
1814
1815 STATIC_OVL void
you_aggravate(mtmp)1816 you_aggravate(mtmp)
1817 struct monst *mtmp;
1818 {
1819 pline("For some reason, %s presence is known to you.",
1820 s_suffix(noit_mon_nam(mtmp)));
1821 cls();
1822 #ifdef CLIPPING
1823 cliparound(mtmp->mx, mtmp->my);
1824 #endif
1825 show_glyph(mtmp->mx, mtmp->my, mon_to_glyph(mtmp));
1826 display_self();
1827 You_feel("aggravated at %s.", noit_mon_nam(mtmp));
1828 display_nhwindow(WIN_MAP, TRUE);
1829 docrt();
1830 if (unconscious()) {
1831 multi = -1;
1832 nomovemsg =
1833 "Aggravated, you are jolted into full consciousness.";
1834 }
1835 newsym(mtmp->mx,mtmp->my);
1836 if (!canspotmon(mtmp))
1837 map_invisible(mtmp->mx, mtmp->my);
1838 }
1839
1840 int
rnd_misc_item(mtmp)1841 rnd_misc_item(mtmp)
1842 struct monst *mtmp;
1843 {
1844 struct permonst *pm = mtmp->data;
1845 int difficulty = monstr[(monsndx(pm))];
1846
1847 if(is_animal(pm) || attacktype(pm, AT_EXPL) || mindless(mtmp->data)
1848 || pm->mlet == S_GHOST
1849 # ifdef KOPS
1850 || pm->mlet == S_KOP
1851 # endif
1852 ) return 0;
1853 /* Unlike other rnd_item functions, we only allow _weak_ monsters
1854 * to have this item; after all, the item will be used to strengthen
1855 * the monster and strong monsters won't use it at all...
1856 */
1857 if (difficulty < 6 && !rn2(30))
1858 return rn2(6) ? POT_POLYMORPH : WAN_POLYMORPH;
1859
1860 if (!rn2(40) && !nonliving(pm)) return AMULET_OF_LIFE_SAVING;
1861
1862 switch (rn2(3)) {
1863 case 0:
1864 if (mtmp->isgd) return 0;
1865 return rn2(6) ? POT_SPEED : WAN_SPEED_MONSTER;
1866 case 1:
1867 if (mtmp->mpeaceful && !See_invisible) return 0;
1868 return rn2(6) ? POT_INVISIBILITY : WAN_MAKE_INVISIBLE;
1869 case 2:
1870 return POT_GAIN_LEVEL;
1871 }
1872 /*NOTREACHED*/
1873 return 0;
1874 }
1875
1876 boolean
searches_for_item(mon,obj)1877 searches_for_item(mon, obj)
1878 struct monst *mon;
1879 struct obj *obj;
1880 {
1881 int typ = obj->otyp;
1882
1883 if (is_animal(mon->data) ||
1884 mindless(mon->data) ||
1885 mon->data == &mons[PM_GHOST]) /* don't loot bones piles */
1886 return FALSE;
1887
1888 if (typ == WAN_MAKE_INVISIBLE || typ == POT_INVISIBILITY)
1889 return (boolean)(!mon->minvis && !mon->invis_blkd);
1890 if (typ == WAN_SPEED_MONSTER || typ == POT_SPEED)
1891 return (boolean)(mon->mspeed != MFAST);
1892
1893 switch (obj->oclass) {
1894 case WAND_CLASS:
1895 if (typ == WAN_DIGGING)
1896 return (boolean)(!is_floater(mon->data));
1897 if (typ == WAN_POLYMORPH)
1898 return (boolean)(monstr[monsndx(mon->data)] < 6);
1899 if (objects[typ].oc_dir == RAY ||
1900 typ == WAN_STRIKING ||
1901 typ == WAN_TELEPORTATION ||
1902 typ == WAN_CREATE_MONSTER)
1903 return TRUE;
1904 break;
1905 case POTION_CLASS:
1906 if (typ == POT_HEALING ||
1907 typ == POT_EXTRA_HEALING ||
1908 typ == POT_FULL_HEALING ||
1909 typ == POT_POLYMORPH ||
1910 typ == POT_GAIN_LEVEL ||
1911 typ == POT_PARALYSIS ||
1912 typ == POT_SLEEPING ||
1913 typ == POT_ACID ||
1914 typ == POT_BLINDNESS ||
1915 typ == POT_CONFUSION)
1916 return TRUE;
1917 break;
1918 case SCROLL_CLASS:
1919 if (typ == SCR_TELEPORTATION || typ == SCR_CREATE_MONSTER
1920 || typ == SCR_EARTH)
1921 return TRUE;
1922 break;
1923 case AMULET_CLASS:
1924 if (typ == AMULET_OF_LIFE_SAVING)
1925 return (boolean)(!nonliving(mon->data));
1926 if (typ == AMULET_OF_REFLECTION)
1927 return TRUE;
1928 break;
1929 case TOOL_CLASS:
1930 if (typ == PICK_AXE)
1931 return (boolean)needspick(mon->data);
1932 if (typ == UNICORN_HORN)
1933 return (boolean)(!obj->cursed && !is_unicorn(mon->data));
1934 if (typ == FROST_HORN || typ == FIRE_HORN)
1935 return TRUE;
1936 break;
1937 case FOOD_CLASS:
1938 if (typ == CORPSE)
1939 return (boolean)(((mon->misc_worn_check & W_ARMG) &&
1940 touch_petrifies(&mons[obj->corpsenm])) ||
1941 (!resists_ston(mon) &&
1942 (obj->corpsenm == PM_LIZARD ||
1943 acidic(&mons[obj->corpsenm]))));
1944 if (typ == EGG)
1945 return (boolean)(touch_petrifies(&mons[obj->corpsenm]));
1946 break;
1947 default:
1948 break;
1949 }
1950
1951 return FALSE;
1952 }
1953
1954 boolean
mon_reflects(mon,str)1955 mon_reflects(mon,str)
1956 struct monst *mon;
1957 const char *str;
1958 {
1959 struct obj *orefl = which_armor(mon, W_ARMS);
1960
1961 if (orefl && orefl->otyp == SHIELD_OF_REFLECTION) {
1962 if (str) {
1963 pline(str, s_suffix(mon_nam(mon)), "shield");
1964 makeknown(SHIELD_OF_REFLECTION);
1965 }
1966 return TRUE;
1967 } else if ((orefl = which_armor(mon, W_AMUL)) &&
1968 orefl->otyp == AMULET_OF_REFLECTION) {
1969 if (str) {
1970 pline(str, s_suffix(mon_nam(mon)), "amulet");
1971 makeknown(AMULET_OF_REFLECTION);
1972 }
1973 return TRUE;
1974 } else if ((orefl = which_armor(mon, W_ARM)) &&
1975 (orefl->otyp == SILVER_DRAGON_SCALES || orefl->otyp == SILVER_DRAGON_SCALE_MAIL)) {
1976 if (str)
1977 pline(str, s_suffix(mon_nam(mon)), "armor");
1978 return TRUE;
1979 } else if (mon->data == &mons[PM_SILVER_DRAGON]) {
1980 /* Silver dragons only reflect when mature; babies do not */
1981 if (str)
1982 pline(str, s_suffix(mon_nam(mon)), "scales");
1983 return TRUE;
1984 }
1985 return FALSE;
1986 }
1987
1988 boolean
ureflects(fmt,str)1989 ureflects (fmt, str)
1990 const char *fmt, *str;
1991 {
1992 /* Check from outermost to innermost objects */
1993 if (EReflecting & W_ARMS) {
1994 if (fmt && str) {
1995 pline(fmt, str, "shield");
1996 makeknown(SHIELD_OF_REFLECTION);
1997 }
1998 return TRUE;
1999 } else if (EReflecting & W_WEP) {
2000 /* Due to wielded artifact weapon */
2001 if (fmt && str)
2002 pline(fmt, str, "weapon");
2003 return TRUE;
2004 } else if (EReflecting & W_AMUL) {
2005 if (fmt && str) {
2006 pline(fmt, str, "medallion");
2007 makeknown(AMULET_OF_REFLECTION);
2008 }
2009 return TRUE;
2010 } else if (EReflecting & W_ARM) {
2011 if (fmt && str)
2012 pline(fmt, str, "armor");
2013 return TRUE;
2014 } else if (youmonst.data == &mons[PM_SILVER_DRAGON]) {
2015 if (fmt && str)
2016 pline(fmt, str, "scales");
2017 return TRUE;
2018 }
2019 return FALSE;
2020 }
2021
2022
2023 /* TRUE if the monster ate something */
2024 boolean
munstone(mon,by_you)2025 munstone(mon, by_you)
2026 struct monst *mon;
2027 boolean by_you;
2028 {
2029 struct obj *obj;
2030
2031 if (resists_ston(mon)) return FALSE;
2032 if (mon->meating || !mon->mcanmove || mon->msleeping) return FALSE;
2033
2034 for(obj = mon->minvent; obj; obj = obj->nobj) {
2035 /* Monsters can also use potions of acid */
2036 if ((obj->otyp == POT_ACID) || (obj->otyp == CORPSE &&
2037 (obj->corpsenm == PM_LIZARD || acidic(&mons[obj->corpsenm])))) {
2038 int nutrit = dog_nutrition(mon, obj); /* also sets meating */
2039
2040 if (canseemon(mon)) {
2041 long save_quan = obj->quan;
2042
2043 obj->quan = 1L;
2044 pline("%s %ss %s.", Monnam(mon),
2045 (obj->otyp == POT_ACID) ? "quaff" : "eat",
2046 distant_name(obj,doname));
2047 obj->quan = save_quan;
2048 } else if (flags.soundok)
2049 You_hear("%s.", (obj->otyp == POT_ACID) ? "drinking" : "chewing");
2050 m_useup(mon, obj);
2051 if (((obj->otyp == POT_ACID) || acidic(&mons[obj->corpsenm])) &&
2052 !resists_acid(mon)) {
2053 mon->mhp -= rnd(15);
2054 pline("%s has a very bad case of stomach acid.",
2055 Monnam(mon));
2056 }
2057 if (mon->mhp <= 0) {
2058 pline("%s dies!", Monnam(mon));
2059 if (by_you) xkilled(mon, 0);
2060 else mondead(mon);
2061 return TRUE;
2062 }
2063 if (canseemon(mon)) {
2064 if (Hallucination)
2065 pline("What a pity - %s just ruined a future piece of art!",
2066 mon_nam(mon));
2067 else
2068 pline("%s seems limber!", Monnam(mon));
2069 }
2070 if (mon->mtame && !mon->isminion) {
2071 struct edog *edog = EDOG(mon);
2072
2073 if (edog->hungrytime < moves) edog->hungrytime = moves;
2074 edog->hungrytime += nutrit;
2075 mon->mconf = 0;
2076 }
2077 mon->mlstmv = monstermoves; /* it takes a turn */
2078 return TRUE;
2079 }
2080 }
2081 return FALSE;
2082 }
2083
2084 /*muse.c*/
2085