xref: /original-bsd/games/hack/hack.mon.c (revision 10020db5)
1 /* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
2 /* hack.mon.c - version 1.0.3 */
3 
4 #include "hack.h"
5 #include "hack.mfndpos.h"
6 #define	NULL	(char *) 0
7 extern struct monst *makemon();
8 extern struct obj *mkobj_at();
9 
10 int warnlevel;		/* used by movemon and dochugw */
11 long lastwarntime;
12 int lastwarnlev;
13 char *warnings[] = {
14 	"white", "pink", "red", "ruby", "purple", "black"
15 };
16 
17 movemon()
18 {
19 	register struct monst *mtmp;
20 	register int fr;
21 
22 	warnlevel = 0;
23 
24 	while(1) {
25 		/* find a monster that we haven't treated yet */
26 		/* note that mtmp or mtmp->nmon might get killed
27 		   while mtmp moves, so we cannot just walk down the
28 		   chain (even new monsters might get created!) */
29 		for(mtmp = fmon; mtmp; mtmp = mtmp->nmon)
30 			if(mtmp->mlstmv < moves) goto next_mon;
31 		/* treated all monsters */
32 		break;
33 
34 	next_mon:
35 		mtmp->mlstmv = moves;
36 
37 		/* most monsters drown in pools */
38 		{ boolean inpool, iseel;
39 
40 		  inpool = (levl[mtmp->mx][mtmp->my].typ == POOL);
41 		  iseel = (mtmp->data->mlet == ';');
42 		  if(inpool && !iseel) {
43 			if(cansee(mtmp->mx,mtmp->my))
44 			    pline("%s drowns.", Monnam(mtmp));
45 			mondead(mtmp);
46 			continue;
47 		  }
48 		/* but eels have a difficult time outside */
49 		  if(iseel && !inpool) {
50 			if(mtmp->mhp > 1) mtmp->mhp--;
51 			mtmp->mflee = 1;
52 			mtmp->mfleetim += 2;
53 		  }
54 		}
55 		if(mtmp->mblinded && !--mtmp->mblinded)
56 			mtmp->mcansee = 1;
57 		if(mtmp->mfleetim && !--mtmp->mfleetim)
58 			mtmp->mflee = 0;
59 		if(mtmp->mimic) continue;
60 		if(mtmp->mspeed != MSLOW || !(moves%2)){
61 			/* continue if the monster died fighting */
62 			fr = -1;
63 			if(Conflict && cansee(mtmp->mx,mtmp->my)
64 				&& (fr = fightm(mtmp)) == 2)
65 				continue;
66 			if(fr<0 && dochugw(mtmp))
67 				continue;
68 		}
69 		if(mtmp->mspeed == MFAST && dochugw(mtmp))
70 			continue;
71 	}
72 
73 	warnlevel -= u.ulevel;
74 	if(warnlevel >= SIZE(warnings))
75 		warnlevel = SIZE(warnings)-1;
76 	if(warnlevel >= 0)
77 	if(warnlevel > lastwarnlev || moves > lastwarntime + 5){
78 	    register char *rr;
79 	    switch(Warning & (LEFT_RING | RIGHT_RING)){
80 	    case LEFT_RING:
81 		rr = "Your left ring glows";
82 		break;
83 	    case RIGHT_RING:
84 		rr = "Your right ring glows";
85 		break;
86 	    case LEFT_RING | RIGHT_RING:
87 		rr = "Both your rings glow";
88 		break;
89 	    default:
90 		rr = "Your fingertips glow";
91 		break;
92 	    }
93 	    pline("%s %s!", rr, warnings[warnlevel]);
94 	    lastwarntime = moves;
95 	    lastwarnlev = warnlevel;
96 	}
97 
98 	dmonsfree();	/* remove all dead monsters */
99 }
100 
101 justswld(mtmp,name)
102 register struct monst *mtmp;
103 char *name;
104 {
105 
106 	mtmp->mx = u.ux;
107 	mtmp->my = u.uy;
108 	u.ustuck = mtmp;
109 	pmon(mtmp);
110 	kludge("%s swallows you!",name);
111 	more();
112 	seeoff(1);
113 	u.uswallow = 1;
114 	u.uswldtim = 0;
115 	swallowed();
116 }
117 
118 youswld(mtmp,dam,die,name)
119 register struct monst *mtmp;
120 register dam,die;
121 char *name;
122 {
123 	if(mtmp != u.ustuck) return;
124 	kludge("%s digests you!",name);
125 	u.uhp -= dam;
126 	if(u.uswldtim++ >= die){	/* a3 */
127 		pline("It totally digests you!");
128 		u.uhp = -1;
129 	}
130 	if(u.uhp < 1) done_in_by(mtmp);
131 	/* flags.botlx = 1;		/* should we show status line ? */
132 }
133 
134 dochugw(mtmp) register struct monst *mtmp; {
135 register x = mtmp->mx;
136 register y = mtmp->my;
137 register d = dochug(mtmp);
138 register dd;
139 	if(!d)		/* monster still alive */
140 	if(Warning)
141 	if(!mtmp->mpeaceful)
142 	if(mtmp->data->mlevel > warnlevel)
143 	if((dd = dist(mtmp->mx,mtmp->my)) < dist(x,y))
144 	if(dd < 100)
145 	if(!canseemon(mtmp))
146 		warnlevel = mtmp->data->mlevel;
147 	return(d);
148 }
149 
150 /* returns 1 if monster died moving, 0 otherwise */
151 dochug(mtmp)
152 register struct monst *mtmp;
153 {
154 	register struct permonst *mdat;
155 	register tmp, nearby, scared;
156 
157 	if(mtmp->cham && !rn2(6))
158 		(void) newcham(mtmp, &mons[dlevel+14+rn2(CMNUM-14-dlevel)]);
159 	mdat = mtmp->data;
160 	if(mdat->mlevel < 0)
161 		panic("bad monster %c (%d)",mdat->mlet,mdat->mlevel);
162 
163 	/* regenerate monsters */
164 	if((!(moves%20) || index(MREGEN, mdat->mlet)) &&
165 	    mtmp->mhp < mtmp->mhpmax)
166 		mtmp->mhp++;
167 
168 	if(mtmp->mfroz) return(0); /* frozen monsters don't do anything */
169 
170 	if(mtmp->msleep) {
171 		/* wake up, or get out of here. */
172 		/* ettins are hard to surprise */
173 		/* Nymphs and Leprechauns do not easily wake up */
174 		if(cansee(mtmp->mx,mtmp->my) &&
175 			(!Stealth || (mdat->mlet == 'e' && rn2(10))) &&
176 			(!index("NL",mdat->mlet) || !rn2(50)) &&
177 			(Aggravate_monster || index("d1", mdat->mlet)
178 				|| (!rn2(7) && !mtmp->mimic)))
179 			mtmp->msleep = 0;
180 		else return(0);
181 	}
182 
183 	/* not frozen or sleeping: wipe out texts written in the dust */
184 	wipe_engr_at(mtmp->mx, mtmp->my, 1);
185 
186 	/* confused monsters get unconfused with small probability */
187 	if(mtmp->mconf && !rn2(50)) mtmp->mconf = 0;
188 
189 	/* some monsters teleport */
190 	if(mtmp->mflee && index("tNL", mdat->mlet) && !rn2(40)){
191 		rloc(mtmp);
192 		return(0);
193 	}
194 	if(mdat->mmove < rnd(6)) return(0);
195 
196 	/* fleeing monsters might regain courage */
197 	if(mtmp->mflee && !mtmp->mfleetim
198 	    && mtmp->mhp == mtmp->mhpmax && !rn2(25))
199 		mtmp->mflee = 0;
200 
201 	nearby = (dist(mtmp->mx, mtmp->my) < 3);
202 	scared = (nearby && (sengr_at("Elbereth", u.ux, u.uy) ||
203 			sobj_at(SCR_SCARE_MONSTER, u.ux, u.uy)));
204 	if(scared && !mtmp->mflee) {
205 		mtmp->mflee = 1;
206 		mtmp->mfleetim = (rn2(7) ? rnd(10) : rnd(100));
207 	}
208 
209 	if(!nearby ||
210 		mtmp->mflee ||
211 		mtmp->mconf ||
212 		(mtmp->minvis && !rn2(3)) ||
213 		(index("BIuy", mdat->mlet) && !rn2(4)) ||
214 		(mdat->mlet == 'L' && !u.ugold && (mtmp->mgold || rn2(2))) ||
215 		(!mtmp->mcansee && !rn2(4)) ||
216 		mtmp->mpeaceful
217 	   ) {
218 		tmp = m_move(mtmp,0);	/* 2: monster died moving */
219 		if(tmp == 2 || (tmp && mdat->mmove <= 12))
220 			return(tmp == 2);
221 	}
222 
223 	if(!index("Ea", mdat->mlet) && nearby &&
224 	 !mtmp->mpeaceful && u.uhp > 0 && !scared) {
225 		if(mhitu(mtmp))
226 			return(1);	/* monster died (e.g. 'y' or 'F') */
227 	}
228 	/* extra movement for fast monsters */
229 	if(mdat->mmove-12 > rnd(12)) tmp = m_move(mtmp,1);
230 	return(tmp == 2);
231 }
232 
233 m_move(mtmp,after)
234 register struct monst *mtmp;
235 {
236 	register struct monst *mtmp2;
237 	register nx,ny,omx,omy,appr,nearer,cnt,i,j;
238 	xchar gx,gy,nix,niy,chcnt;
239 	schar chi;
240 	boolean likegold, likegems, likeobjs;
241 	char msym = mtmp->data->mlet;
242 	schar mmoved = 0;	/* not strictly nec.: chi >= 0 will do */
243 	coord poss[9];
244 	int info[9];
245 
246 	if(mtmp->mfroz || mtmp->msleep)
247 		return(0);
248 	if(mtmp->mtrapped) {
249 		i = mintrap(mtmp);
250 		if(i == 2) return(2);	/* he died */
251 		if(i == 1) return(0);	/* still in trap, so didnt move */
252 	}
253 	if(mtmp->mhide && o_at(mtmp->mx,mtmp->my) && rn2(10))
254 		return(0);		/* do not leave hiding place */
255 
256 #ifndef NOWORM
257 	if(mtmp->wormno)
258 		goto not_special;
259 #endif NOWORM
260 
261 	/* my dog gets a special treatment */
262 	if(mtmp->mtame) {
263 		return( dog_move(mtmp, after) );
264 	}
265 
266 	/* likewise for shopkeeper */
267 	if(mtmp->isshk) {
268 		mmoved = shk_move(mtmp);
269 		if(mmoved >= 0)
270 			goto postmov;
271 		mmoved = 0;		/* follow player outside shop */
272 	}
273 
274 	/* and for the guard */
275 	if(mtmp->isgd) {
276 		mmoved = gd_move();
277 		goto postmov;
278 	}
279 
280 /* teleport if that lies in our nature ('t') or when badly wounded ('1') */
281 	if((msym == 't' && !rn2(5))
282 	|| (msym == '1' && (mtmp->mhp < 7 || (!xdnstair && !rn2(5))
283 		|| levl[u.ux][u.uy].typ == STAIRS))) {
284 		if(mtmp->mhp < 7 || (msym == 't' && rn2(2)))
285 			rloc(mtmp);
286 		else
287 			mnexto(mtmp);
288 		mmoved = 1;
289 		goto postmov;
290 	}
291 
292 	/* spit fire ('D') or use a wand ('1') when appropriate */
293 	if(index("D1", msym))
294 		inrange(mtmp);
295 
296 	if(msym == 'U' && !mtmp->mcan && canseemon(mtmp) &&
297 	    mtmp->mcansee && rn2(5)) {
298 		if(!Confusion)
299 			pline("%s's gaze has confused you!", Monnam(mtmp));
300 		else
301 			pline("You are getting more and more confused.");
302 		if(rn2(3)) mtmp->mcan = 1;
303 		Confusion += d(3,4);		/* timeout */
304 	}
305 not_special:
306 	if(!mtmp->mflee && u.uswallow && u.ustuck != mtmp) return(1);
307 	appr = 1;
308 	if(mtmp->mflee) appr = -1;
309 	if(mtmp->mconf || Invis ||  !mtmp->mcansee ||
310 		(index("BIy", msym) && !rn2(3)))
311 		appr = 0;
312 	omx = mtmp->mx;
313 	omy = mtmp->my;
314 	gx = u.ux;
315 	gy = u.uy;
316 	if(msym == 'L' && appr == 1 && mtmp->mgold > u.ugold)
317 		appr = -1;
318 
319 	/* random criterion for 'smell' or track finding ability
320 	   should use mtmp->msmell or sth
321 	 */
322 	if(msym == '@' ||
323 	  ('a' <= msym && msym <= 'z')) {
324 	extern coord *gettrack();
325 	register coord *cp;
326 	schar mroom;
327 		mroom = inroom(omx,omy);
328 		if(mroom < 0 || mroom != inroom(u.ux,u.uy)){
329 		    cp = gettrack(omx,omy);
330 		    if(cp){
331 			gx = cp->x;
332 			gy = cp->y;
333 		    }
334 		}
335 	}
336 
337 	/* look for gold or jewels nearby */
338 	likegold = (index("LOD", msym) != NULL);
339 	likegems = (index("ODu", msym) != NULL);
340 	likeobjs = mtmp->mhide;
341 #define	SRCHRADIUS	25
342 	{ xchar mind = SRCHRADIUS;		/* not too far away */
343 	  register int dd;
344 	  if(likegold){
345 		register struct gold *gold;
346 		for(gold = fgold; gold; gold = gold->ngold)
347 		  if((dd = DIST(omx,omy,gold->gx,gold->gy)) < mind){
348 		    mind = dd;
349 		    gx = gold->gx;
350 		    gy = gold->gy;
351 		}
352 	  }
353 	  if(likegems || likeobjs){
354 		register struct obj *otmp;
355 		for(otmp = fobj; otmp; otmp = otmp->nobj)
356 		if(likeobjs || otmp->olet == GEM_SYM)
357 		if(msym != 'u' ||
358 			objects[otmp->otyp].g_val != 0)
359 		if((dd = DIST(omx,omy,otmp->ox,otmp->oy)) < mind){
360 		    mind = dd;
361 		    gx = otmp->ox;
362 		    gy = otmp->oy;
363 		}
364 	  }
365 	  if(mind < SRCHRADIUS && appr == -1) {
366 		if(dist(omx,omy) < 10) {
367 		    gx = u.ux;
368 		    gy = u.uy;
369 		} else
370 		    appr = 1;
371 	  }
372 	}
373 	nix = omx;
374 	niy = omy;
375 	cnt = mfndpos(mtmp,poss,info,
376 		msym == 'u' ? NOTONL :
377 		(msym == '@' || msym == '1') ? (ALLOW_SSM | ALLOW_TRAPS) :
378 		index(UNDEAD, msym) ? NOGARLIC : ALLOW_TRAPS);
379 		/* ALLOW_ROCK for some monsters ? */
380 	chcnt = 0;
381 	chi = -1;
382 	for(i=0; i<cnt; i++) {
383 		nx = poss[i].x;
384 		ny = poss[i].y;
385 		for(j=0; j<MTSZ && j<cnt-1; j++)
386 			if(nx == mtmp->mtrack[j].x && ny == mtmp->mtrack[j].y)
387 				if(rn2(4*(cnt-j))) goto nxti;
388 #ifdef STUPID
389 		/* some stupid compilers think that this is too complicated */
390 		{ int d1 = DIST(nx,ny,gx,gy);
391 		  int d2 = DIST(nix,niy,gx,gy);
392 		  nearer = (d1 < d2);
393 		}
394 #else
395 		nearer = (DIST(nx,ny,gx,gy) < DIST(nix,niy,gx,gy));
396 #endif STUPID
397 		if((appr == 1 && nearer) || (appr == -1 && !nearer) ||
398 			!mmoved ||
399 			(!appr && !rn2(++chcnt))){
400 			nix = nx;
401 			niy = ny;
402 			chi = i;
403 			mmoved = 1;
404 		}
405 	nxti:	;
406 	}
407 	if(mmoved){
408 		if(info[chi] & ALLOW_M){
409 			mtmp2 = m_at(nix,niy);
410 			if(hitmm(mtmp,mtmp2) == 1 && rn2(4) &&
411 			  hitmm(mtmp2,mtmp) == 2) return(2);
412 			return(0);
413 		}
414 		if(info[chi] & ALLOW_U){
415 		  (void) hitu(mtmp, d(mtmp->data->damn, mtmp->data->damd)+1);
416 		  return(0);
417 		}
418 		mtmp->mx = nix;
419 		mtmp->my = niy;
420 		for(j=MTSZ-1; j>0; j--) mtmp->mtrack[j] = mtmp->mtrack[j-1];
421 		mtmp->mtrack[0].x = omx;
422 		mtmp->mtrack[0].y = omy;
423 #ifndef NOWORM
424 		if(mtmp->wormno) worm_move(mtmp);
425 #endif NOWORM
426 	} else {
427 		if(msym == 'u' && rn2(2)){
428 			rloc(mtmp);
429 			return(0);
430 		}
431 #ifndef NOWORM
432 		if(mtmp->wormno) worm_nomove(mtmp);
433 #endif NOWORM
434 	}
435 postmov:
436 	if(mmoved == 1) {
437 		if(mintrap(mtmp) == 2)	/* he died */
438 			return(2);
439 		if(likegold) mpickgold(mtmp);
440 		if(likegems) mpickgems(mtmp);
441 		if(mtmp->mhide) mtmp->mundetected = 1;
442 	}
443 	pmon(mtmp);
444 	return(mmoved);
445 }
446 
447 mpickgold(mtmp) register struct monst *mtmp; {
448 register struct gold *gold;
449 	while(gold = g_at(mtmp->mx, mtmp->my)){
450 		mtmp->mgold += gold->amount;
451 		freegold(gold);
452 		if(levl[mtmp->mx][mtmp->my].scrsym == '$')
453 			newsym(mtmp->mx, mtmp->my);
454 	}
455 }
456 
457 mpickgems(mtmp) register struct monst *mtmp; {
458 register struct obj *otmp;
459 	for(otmp = fobj; otmp; otmp = otmp->nobj)
460 	if(otmp->olet == GEM_SYM)
461 	if(otmp->ox == mtmp->mx && otmp->oy == mtmp->my)
462 	if(mtmp->data->mlet != 'u' || objects[otmp->otyp].g_val != 0){
463 		freeobj(otmp);
464 		mpickobj(mtmp, otmp);
465 		if(levl[mtmp->mx][mtmp->my].scrsym == GEM_SYM)
466 			newsym(mtmp->mx, mtmp->my);	/* %% */
467 		return;	/* pick only one object */
468 	}
469 }
470 
471 /* return number of acceptable neighbour positions */
472 mfndpos(mon,poss,info,flag)
473 register struct monst *mon;
474 coord poss[9];
475 int info[9], flag;
476 {
477 	register int x,y,nx,ny,cnt = 0,ntyp;
478 	register struct monst *mtmp;
479 	int nowtyp;
480 	boolean pool;
481 
482 	x = mon->mx;
483 	y = mon->my;
484 	nowtyp = levl[x][y].typ;
485 
486 	pool = (mon->data->mlet == ';');
487 nexttry:	/* eels prefer the water, but if there is no water nearby,
488 		   they will crawl over land */
489 	if(mon->mconf) {
490 		flag |= ALLOW_ALL;
491 		flag &= ~NOTONL;
492 	}
493 	for(nx = x-1; nx <= x+1; nx++) for(ny = y-1; ny <= y+1; ny++)
494 	if(nx != x || ny != y) if(isok(nx,ny))
495 	if(!IS_ROCK(ntyp = levl[nx][ny].typ))
496 	if(!(nx != x && ny != y && (nowtyp == DOOR || ntyp == DOOR)))
497 	if((ntyp == POOL) == pool) {
498 		info[cnt] = 0;
499 		if(nx == u.ux && ny == u.uy){
500 			if(!(flag & ALLOW_U)) continue;
501 			info[cnt] = ALLOW_U;
502 		} else if(mtmp = m_at(nx,ny)){
503 			if(!(flag & ALLOW_M)) continue;
504 			info[cnt] = ALLOW_M;
505 			if(mtmp->mtame){
506 				if(!(flag & ALLOW_TM)) continue;
507 				info[cnt] |= ALLOW_TM;
508 			}
509 		}
510 		if(sobj_at(CLOVE_OF_GARLIC, nx, ny)) {
511 			if(flag & NOGARLIC) continue;
512 			info[cnt] |= NOGARLIC;
513 		}
514 		if(sobj_at(SCR_SCARE_MONSTER, nx, ny) ||
515 		   (!mon->mpeaceful && sengr_at("Elbereth", nx, ny))) {
516 			if(!(flag & ALLOW_SSM)) continue;
517 			info[cnt] |= ALLOW_SSM;
518 		}
519 		if(sobj_at(ENORMOUS_ROCK, nx, ny)) {
520 			if(!(flag & ALLOW_ROCK)) continue;
521 			info[cnt] |= ALLOW_ROCK;
522 		}
523 		if(!Invis && online(nx,ny)){
524 			if(flag & NOTONL) continue;
525 			info[cnt] |= NOTONL;
526 		}
527 		/* we cannot avoid traps of an unknown kind */
528 		{ register struct trap *ttmp = t_at(nx, ny);
529 		  register int tt;
530 			if(ttmp) {
531 				tt = 1 << ttmp->ttyp;
532 				if(mon->mtrapseen & tt){
533 					if(!(flag & tt)) continue;
534 					info[cnt] |= tt;
535 				}
536 			}
537 		}
538 		poss[cnt].x = nx;
539 		poss[cnt].y = ny;
540 		cnt++;
541 	}
542 	if(!cnt && pool && nowtyp != POOL) {
543 		pool = FALSE;
544 		goto nexttry;
545 	}
546 	return(cnt);
547 }
548 
549 dist(x,y) int x,y; {
550 	return((x-u.ux)*(x-u.ux) + (y-u.uy)*(y-u.uy));
551 }
552 
553 poisoned(string, pname)
554 register char *string, *pname;
555 {
556 	register int i;
557 
558 	if(Blind) pline("It was poisoned.");
559 	else pline("The %s was poisoned!",string);
560 	if(Poison_resistance) {
561 		pline("The poison doesn't seem to affect you.");
562 		return;
563 	}
564 	i = rn2(10);
565 	if(i == 0) {
566 		u.uhp = -1;
567 		pline("I am afraid the poison was deadly ...");
568 	} else if(i <= 5) {
569 		losestr(rn1(3,3));
570 	} else {
571 		losehp(rn1(10,6), pname);
572 	}
573 	if(u.uhp < 1) {
574 		killer = pname;
575 		done("died");
576 	}
577 }
578 
579 mondead(mtmp)
580 register struct monst *mtmp;
581 {
582 	relobj(mtmp,1);
583 	unpmon(mtmp);
584 	relmon(mtmp);
585 	unstuck(mtmp);
586 	if(mtmp->isshk) shkdead(mtmp);
587 	if(mtmp->isgd) gddead();
588 #ifndef NOWORM
589 	if(mtmp->wormno) wormdead(mtmp);
590 #endif NOWORM
591 	monfree(mtmp);
592 }
593 
594 /* called when monster is moved to larger structure */
595 replmon(mtmp,mtmp2)
596 register struct monst *mtmp, *mtmp2;
597 {
598 	relmon(mtmp);
599 	monfree(mtmp);
600 	mtmp2->nmon = fmon;
601 	fmon = mtmp2;
602 	if(u.ustuck == mtmp) u.ustuck = mtmp2;
603 	if(mtmp2->isshk) replshk(mtmp,mtmp2);
604 	if(mtmp2->isgd) replgd(mtmp,mtmp2);
605 }
606 
607 relmon(mon)
608 register struct monst *mon;
609 {
610 	register struct monst *mtmp;
611 
612 	if(mon == fmon) fmon = fmon->nmon;
613 	else {
614 		for(mtmp = fmon; mtmp->nmon != mon; mtmp = mtmp->nmon) ;
615 		mtmp->nmon = mon->nmon;
616 	}
617 }
618 
619 /* we do not free monsters immediately, in order to have their name
620    available shortly after their demise */
621 struct monst *fdmon;	/* chain of dead monsters, need not to be saved */
622 
623 monfree(mtmp) register struct monst *mtmp; {
624 	mtmp->nmon = fdmon;
625 	fdmon = mtmp;
626 }
627 
628 dmonsfree(){
629 register struct monst *mtmp;
630 	while(mtmp = fdmon){
631 		fdmon = mtmp->nmon;
632 		free((char *) mtmp);
633 	}
634 }
635 
636 unstuck(mtmp)
637 register struct monst *mtmp;
638 {
639 	if(u.ustuck == mtmp) {
640 		if(u.uswallow){
641 			u.ux = mtmp->mx;
642 			u.uy = mtmp->my;
643 			u.uswallow = 0;
644 			setsee();
645 			docrt();
646 		}
647 		u.ustuck = 0;
648 	}
649 }
650 
651 killed(mtmp)
652 register struct monst *mtmp;
653 {
654 #ifdef lint
655 #define	NEW_SCORING
656 #endif lint
657 	register int tmp,tmp2,nk,x,y;
658 	register struct permonst *mdat;
659 	extern long newuexp();
660 
661 	if(mtmp->cham) mtmp->data = PM_CHAMELEON;
662 	mdat = mtmp->data;
663 	if(Blind) pline("You destroy it!");
664 	else {
665 		pline("You destroy %s!",
666 			mtmp->mtame ? amonnam(mtmp, "poor") : monnam(mtmp));
667 	}
668 	if(u.umconf) {
669 		if(!Blind) pline("Your hands stop glowing blue.");
670 		u.umconf = 0;
671 	}
672 
673 	/* count killed monsters */
674 #define	MAXMONNO	100
675 	nk = 1;		      /* in case we cannot find it in mons */
676 	tmp = mdat - mons;    /* index in mons array (if not 'd', '@', ...) */
677 	if(tmp >= 0 && tmp < CMNUM+2) {
678 	    extern char fut_geno[];
679 	    u.nr_killed[tmp]++;
680 	    if((nk = u.nr_killed[tmp]) > MAXMONNO &&
681 		!index(fut_geno, mdat->mlet))
682 		    charcat(fut_geno,  mdat->mlet);
683 	}
684 
685 	/* punish bad behaviour */
686 	if(mdat->mlet == '@') Telepat = 0, u.uluck -= 2;
687 	if(mtmp->mpeaceful || mtmp->mtame) u.uluck--;
688 	if(mdat->mlet == 'u') u.uluck -= 5;
689 	if((int)u.uluck < LUCKMIN) u.uluck = LUCKMIN;
690 
691 	/* give experience points */
692 	tmp = 1 + mdat->mlevel * mdat->mlevel;
693 	if(mdat->ac < 3) tmp += 2*(7 - mdat->ac);
694 	if(index("AcsSDXaeRTVWU&In:P", mdat->mlet))
695 		tmp += 2*mdat->mlevel;
696 	if(index("DeV&P",mdat->mlet)) tmp += (7*mdat->mlevel);
697 	if(mdat->mlevel > 6) tmp += 50;
698 	if(mdat->mlet == ';') tmp += 1000;
699 
700 #ifdef NEW_SCORING
701 	/* ------- recent addition: make nr of points decrease
702 		   when this is not the first of this kind */
703 	{ int ul = u.ulevel;
704 	  int ml = mdat->mlevel;
705 
706 	if(ul < 14)    /* points are given based on present and future level */
707 	    for(tmp2 = 0; !tmp2 || ul + tmp2 <= ml; tmp2++)
708 		if(u.uexp + 1 + (tmp + ((tmp2 <= 0) ? 0 : 4<<(tmp2-1)))/nk
709 		    >= 10*pow((unsigned)(ul-1)))
710 			if(++ul == 14) break;
711 
712 	tmp2 = ml - ul -1;
713 	tmp = (tmp + ((tmp2 < 0) ? 0 : 4<<tmp2))/nk;
714 	if(!tmp) tmp = 1;
715 	}
716 	/* note: ul is not necessarily the future value of u.ulevel */
717 	/* ------- end of recent valuation change ------- */
718 #endif NEW_SCORING
719 
720 	more_experienced(tmp,0);
721 	flags.botl = 1;
722 	while(u.ulevel < 14 && u.uexp >= newuexp()){
723 		pline("Welcome to experience level %u.", ++u.ulevel);
724 		tmp = rnd(10);
725 		if(tmp < 3) tmp = rnd(10);
726 		u.uhpmax += tmp;
727 		u.uhp += tmp;
728 		flags.botl = 1;
729 	}
730 
731 	/* dispose of monster and make cadaver */
732 	x = mtmp->mx;	y = mtmp->my;
733 	mondead(mtmp);
734 	tmp = mdat->mlet;
735 	if(tmp == 'm') { /* he killed a minotaur, give him a wand of digging */
736 			/* note: the dead minotaur will be on top of it! */
737 		mksobj_at(WAN_DIGGING, x, y);
738 		/* if(cansee(x,y)) atl(x,y,fobj->olet); */
739 		stackobj(fobj);
740 	} else
741 #ifndef NOWORM
742 	if(tmp == 'w') {
743 		mksobj_at(WORM_TOOTH, x, y);
744 		stackobj(fobj);
745 	} else
746 #endif	NOWORM
747 	if(!letter(tmp) || (!index("mw", tmp) && !rn2(3))) tmp = 0;
748 
749 	if(ACCESSIBLE(levl[x][y].typ))	/* might be mimic in wall or dead eel*/
750 	    if(x != u.ux || y != u.uy)	/* might be here after swallowed */
751 		if(index("NTVm&",mdat->mlet) || rn2(5)) {
752 		register struct obj *obj2 = mkobj_at(tmp,x,y);
753 		if(cansee(x,y))
754 			atl(x,y,obj2->olet);
755 		stackobj(obj2);
756 	}
757 }
758 
759 kludge(str,arg)
760 register char *str,*arg;
761 {
762 	if(Blind) {
763 		if(*str == '%') pline(str,"It");
764 		else pline(str,"it");
765 	} else pline(str,arg);
766 }
767 
768 rescham()	/* force all chameleons to become normal */
769 {
770 	register struct monst *mtmp;
771 
772 	for(mtmp = fmon; mtmp; mtmp = mtmp->nmon)
773 		if(mtmp->cham) {
774 			mtmp->cham = 0;
775 			(void) newcham(mtmp, PM_CHAMELEON);
776 		}
777 }
778 
779 newcham(mtmp,mdat)	/* make a chameleon look like a new monster */
780 			/* returns 1 if the monster actually changed */
781 register struct monst *mtmp;
782 register struct permonst *mdat;
783 {
784 	register mhp, hpn, hpd;
785 
786 	if(mdat == mtmp->data) return(0);	/* still the same monster */
787 #ifndef NOWORM
788 	if(mtmp->wormno) wormdead(mtmp);	/* throw tail away */
789 #endif NOWORM
790 	if (u.ustuck == mtmp) {
791 		if (u.uswallow) {
792 			u.uswallow = 0;
793 			u.uswldtim = 0;
794 			mnexto (mtmp);
795 			docrt ();
796 			prme ();
797 		}
798 		u.ustuck = 0;
799 	}
800 	hpn = mtmp->mhp;
801 	hpd = (mtmp->data->mlevel)*8;
802 	if(!hpd) hpd = 4;
803 	mtmp->data = mdat;
804 	mhp = (mdat->mlevel)*8;
805 	/* new hp: same fraction of max as before */
806 	mtmp->mhp = 2 + (hpn*mhp)/hpd;
807 	hpn = mtmp->mhpmax;
808 	mtmp->mhpmax = 2 + (hpn*mhp)/hpd;
809 	mtmp->minvis = (mdat->mlet == 'I') ? 1 : 0;
810 #ifndef NOWORM
811 	if(mdat->mlet == 'w' && getwn(mtmp)) initworm(mtmp);
812 			/* perhaps we should clear mtmp->mtame here? */
813 #endif NOWORM
814 	unpmon(mtmp);	/* necessary for 'I' and to force pmon */
815 	pmon(mtmp);
816 	return(1);
817 }
818 
819 mnexto(mtmp)	/* Make monster mtmp next to you (if possible) */
820 struct monst *mtmp;
821 {
822 	extern coord enexto();
823 	coord mm;
824 	mm = enexto(u.ux, u.uy);
825 	mtmp->mx = mm.x;
826 	mtmp->my = mm.y;
827 	pmon(mtmp);
828 }
829 
830 ishuman(mtmp) register struct monst *mtmp; {
831 	return(mtmp->data->mlet == '@');
832 }
833 
834 setmangry(mtmp) register struct monst *mtmp; {
835 	if(!mtmp->mpeaceful) return;
836 	if(mtmp->mtame) return;
837 	mtmp->mpeaceful = 0;
838 	if(ishuman(mtmp)) pline("%s gets angry!", Monnam(mtmp));
839 }
840 
841 /* not one hundred procent correct: now a snake may hide under an
842    invisible object */
843 canseemon(mtmp)
844 register struct monst *mtmp;
845 {
846 	return((!mtmp->minvis || See_invisible)
847 		&& (!mtmp->mhide || !o_at(mtmp->mx,mtmp->my))
848 		&& cansee(mtmp->mx, mtmp->my));
849 }
850