Source:NetHack 3.2.0/mhitm.c

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Below is the full text to mhitm.c from the source code of NetHack 3.2.0. To link to a particular line, write [[NetHack 3.2.0/mhitm.c#line123]], for example.

Warning! This is the source code from an old release. For the latest release, see Source code

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This content was modified from the original NetHack source code distribution (by splitting up NetHack content between wiki pages, and possibly further editing). See the page history for a list of who changed it, and on what dates.

1.    /*	SCCS Id: @(#)mhitm.c	3.2	96/04/08	*/
2.    /* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
3.    /* NetHack may be freely redistributed.  See license for details. */
4.    
5.    #include "hack.h"
6.    #include "artifact.h"
7.    #include "edog.h"
8.    
9.    #ifdef OVLB
10.   
11.   static NEARDATA boolean vis, far_noise;
12.   static NEARDATA long noisetime;
13.   static NEARDATA struct obj *otmp;
14.   
15.   static const char brief_feeling[] =
16.   	"have a %s feeling for a moment, then it passes.";
17.   
18.   static void FDECL(mrustm, (struct monst *, struct monst *, struct obj *));
19.   static int FDECL(hitmm, (struct monst *,struct monst *,struct attack *));
20.   static int FDECL(gazemm, (struct monst *,struct monst *,struct attack *));
21.   static int FDECL(gulpmm, (struct monst *,struct monst *,struct attack *));
22.   static int FDECL(explmm, (struct monst *,struct monst *,struct attack *));
23.   static int FDECL(mdamagem, (struct monst *,struct monst *,struct attack *));
24.   static void FDECL(mswingsm, (struct monst *, struct monst *, struct obj *));
25.   static void FDECL(noises,(struct monst *,struct attack *));
26.   static void FDECL(missmm,(struct monst *,struct monst *,struct attack *));
27.   static int FDECL(passivemm, (struct monst *, struct monst *, BOOLEAN_P, int));
28.   
29.   /* Needed for the special case of monsters wielding vorpal blades (rare).
30.    * If we use this a lot it should probably be a parameter to mdamagem()
31.    * instead of a global variable.
32.    */
33.   static int dieroll;
34.   
35.   static void
36.   noises(magr, mattk)
37.   	register struct monst *magr;
38.   	register struct	attack *mattk;
39.   {
40.   	boolean farq = (distu(magr->mx, magr->my) > 15);
41.   
42.   	if(flags.soundok && (farq != far_noise || moves-noisetime > 10)) {
43.   		far_noise = farq;
44.   		noisetime = moves;
45.   		You_hear("%s%s.",
46.   			(mattk->aatyp == AT_EXPL) ? "an explosion" : "some noises",
47.   			farq ? " in the distance" : "");
48.   	}
49.   }
50.   
51.   static
52.   void
53.   missmm(magr, mdef, mattk)
54.   	register struct monst *magr, *mdef;
55.   	struct attack *mattk;
56.   {
57.   	const char *fmt;
58.   	char buf[BUFSZ];
59.   
60.   	if (vis) {
61.   		if (mdef->m_ap_type) seemimic(mdef);
62.   		if (magr->m_ap_type) seemimic(magr);
63.   		fmt = (could_seduce(magr,mdef,mattk) && !magr->mcan) ?
64.   			"%s pretends to be friendly to" : "%s misses";
65.   		Sprintf(buf, fmt, Monnam(magr));
66.   		pline("%s %s.", buf, mon_nam(mdef));
67.   	} else  noises(magr, mattk);
68.   }
69.   
70.   /*
71.    *  fightm()  -- fight some other monster
72.    *
73.    *  Returns:
74.    *	0 - Monster did nothing.
75.    *	1 - If the monster made an attack.  The monster might have died.
76.    *
77.    *  There is an exception to the above.  If mtmp has the hero swallowed,
78.    *  then we report that the monster did nothing so it will continue to
79.    *  digest the hero.
80.    */
81.   int
82.   fightm(mtmp)		/* have monsters fight each other */
83.   	register struct monst *mtmp;
84.   {
85.   	register struct monst *mon, *nmon;
86.   	int result, has_u_swallowed;
87.   #ifdef LINT
88.   	nmon = 0;
89.   #endif
90.   	/* perhaps the monster will resist Conflict */
91.   	if(resist(mtmp, RING_CLASS, 0, 0))
92.   	    return(0);
93.   
94.   	if(u.ustuck == mtmp) {
95.   	    /* perhaps we're holding it... */
96.   	    if(itsstuck(mtmp))
97.   		return(0);
98.   	}
99.   	has_u_swallowed = (u.uswallow && (mtmp == u.ustuck));
100.  
101.  	for(mon = fmon; mon; mon = nmon) {
102.  	    nmon = mon->nmon;
103.  	    if(nmon == mtmp) nmon = mtmp->nmon;
104.  	    if(mon != mtmp) {
105.  		if(monnear(mtmp,mon->mx,mon->my)) {
106.  		    if(!u.uswallow && (mtmp == u.ustuck)) {
107.  			if(!rn2(4)) {
108.  			    pline("%s releases you!", Monnam(mtmp));
109.  			    u.ustuck = 0;
110.  			} else
111.  			    break;
112.  		    }
113.  
114.  		    /* mtmp can be killed */
115.  		    bhitpos.x = mon->mx;
116.  		    bhitpos.y = mon->my;
117.  		    result = mattackm(mtmp,mon);
118.  
119.  		    if (result & MM_AGR_DIED) return 1;	/* mtmp died */
120.  		    /*
121.  		     *  If mtmp has the hero swallowed, lie and say there
122.  		     *  was no attack (this allows mtmp to digest the hero).
123.  		     */
124.  		    if (has_u_swallowed) return 0;
125.  
126.  		    return ((result & MM_HIT) ? 1 : 0);
127.  		}
128.  	    }
129.  	}
130.  	return 0;
131.  }
132.  
133.  /*
134.   * mattackm() -- a monster attacks another monster.
135.   *
136.   * This function returns a result bitfield:
137.   *	
138.   *	    --------- agressor died
139.   *	   /  ------- defender died
140.   *	  /  /  ----- defender was hit
141.   *	 /  /  /
142.   *	x  x  x
143.   *
144.   *	0x4	MM_AGR_DIED
145.   *	0x2	MM_DEF_DIED
146.   *	0x1	MM_HIT
147.   *	0x0	MM_MISS
148.   *
149.   * Each successive attack has a lower probability of hitting.  Some rely on the
150.   * success of previous attacks.  ** this doen't seem to be implemented -dl **
151.   *
152.   * In the case of exploding monsters, the monster dies as well.
153.   */
154.  int
155.  mattackm(magr, mdef)
156.      register struct monst *magr,*mdef;
157.  {
158.      int		    i,		/* loop counter */
159.  		    tmp,	/* amour class difference */
160.  		    strike,	/* hit this attack */
161.  		    attk,	/* attack attempted this time */
162.  		    struck = 0,	/* hit at least once */
163.  		    res[NATTK];	/* results of all attacks */
164.      struct attack   *mattk;
165.      struct permonst *pa, *pd;
166.  
167.      if (!magr || !mdef) return(MM_MISS);		/* mike@genat */
168.      if (!magr->mcanmove) return(MM_MISS);		/* riv05!a3 */
169.      pa = magr->data;  pd = mdef->data;
170.  
171.      /* Grid bugs cannot attack at an angle. */
172.      if (pa == &mons[PM_GRID_BUG] && magr->mx != mdef->mx
173.  						&& magr->my != mdef->my)
174.  	return(MM_MISS);
175.  
176.      /* Calculate the armour class differential. */
177.      tmp = find_mac(mdef) + magr->m_lev;
178.      if (mdef->mconf || !mdef->mcanmove || mdef->msleep){
179.  	tmp += 4;
180.  	if (mdef->msleep) mdef->msleep = 0;
181.      }
182.  
183.      /* undetect monsters become un-hidden if they are attacked */
184.      if (mdef->mundetected) {
185.  	mdef->mundetected = 0;
186.  	newsym(mdef->mx, mdef->my);
187.  	if(canseemon(mdef) && !sensemon(mdef))
188.  	    pline("Suddenly, you notice %s.", a_monnam(mdef));
189.      }
190.  
191.      /* Elves hate orcs. */
192.      if (is_elf(pa) && is_orc(pd)) tmp++;
193.  
194.  
195.      /* Set up the visibility of action */
196.      vis = (cansee(magr->mx,magr->my) && cansee(mdef->mx,mdef->my));
197.  
198.      /*	Set flag indicating monster has moved this turn.  Necessary since a
199.       *	monster might get an attack out of sequence (i.e. before its move) in
200.       *	some cases, in which case this still counts as its move for the round
201.       *	and it shouldn't move again.
202.       */
203.      magr->mlstmv = monstermoves;
204.  
205.      /* Now perform all attacks for the monster. */
206.      for (i = 0; i < NATTK; i++) {
207.  	res[i] = MM_MISS;
208.  	mattk = &(pa->mattk[i]);
209.  	otmp = (struct obj *)0;
210.  	attk = 1;
211.  	switch (mattk->aatyp) {
212.  	    case AT_WEAP:		/* "hand to hand" attacks */
213.  		if (magr->weapon_check == NEED_WEAPON || !MON_WEP(magr)) {
214.  			magr->weapon_check = NEED_HTH_WEAPON;
215.  			if (mon_wield_item(magr) != 0) return 0;
216.  		}
217.  		possibly_unwield(magr);
218.  		otmp = MON_WEP(magr);
219.  
220.  		if (otmp) {
221.  		    if (vis) mswingsm(magr, mdef, otmp);
222.  		    tmp += hitval(otmp, mdef);
223.  		}
224.  		/* fall through */
225.  	    case AT_CLAW:
226.  	    case AT_KICK:
227.  	    case AT_BITE:
228.  	    case AT_STNG:
229.  	    case AT_TUCH:
230.  	    case AT_BUTT:
231.  	    case AT_TENT:
232.  		dieroll = rnd(20 + i);
233.  		strike = (tmp > dieroll);
234.  		if (strike)
235.  		    res[i] = hitmm(magr, mdef, mattk);
236.  		else
237.  		    missmm(magr, mdef, mattk);
238.  		break;
239.  
240.  	    case AT_HUGS:	/* automatic if prev two attacks succeed */
241.  		strike = (i >= 2 && res[i-1] == MM_HIT && res[i-2] == MM_HIT);
242.  		if (strike)
243.  		    res[i] = hitmm(magr, mdef, mattk);
244.  
245.  		break;
246.  
247.  	    case AT_GAZE:
248.  		strike = 0;	/* will not wake up a sleeper */
249.  		res[i] = gazemm(magr, mdef, mattk);
250.  		break;
251.  
252.  	    case AT_EXPL:
253.  		strike = 1;	/* automatic hit */
254.  		res[i] = explmm(magr, mdef, mattk);
255.  		break;
256.  
257.  	    case AT_ENGL:
258.  		/* Engulfing attacks are directed at the hero if
259.  		 * possible. -dlc
260.  		 */
261.  		if (u.uswallow && magr == u.ustuck)
262.  		    strike = 0;
263.  		else {
264.  		    if ((strike = (tmp > rnd(20+i))))
265.  			res[i] = gulpmm(magr, mdef, mattk);
266.  		    else
267.  			missmm(magr, mdef, mattk);
268.  		}
269.  		break;
270.  
271.  	    default:		/* no attack */
272.  		strike = 0;
273.  		attk = 0;
274.  		break;
275.  	}
276.  
277.  	if (attk && !(res[i] & MM_AGR_DIED))
278.  	    res[i] = passivemm(magr, mdef, strike, res[i] & MM_DEF_DIED);
279.  
280.  	if (res[i] & MM_DEF_DIED) return res[i];
281.  
282.  	/*
283.  	 *  Wake up the defender.  NOTE:  this must follow the check
284.  	 *  to see if the defender died.  We don't want to modify
285.  	 *  unallocated monsters!
286.  	 */
287.  	if (strike) mdef->msleep = 0;
288.  
289.  	if (res[i] & MM_AGR_DIED)  return res[i];
290.  	/* return if aggressor can no longer attack */
291.  	if (!magr->mcanmove || magr->msleep) return res[i];
292.  	if (res[i] & MM_HIT) struck = 1;	/* at least one hit */
293.      }
294.  
295.      return(struck ? MM_HIT : MM_MISS);
296.  }
297.  
298.  /* Returns the result of mdamagem(). */
299.  static int
300.  hitmm(magr, mdef, mattk)
301.  	register struct monst *magr,*mdef;
302.  	struct	attack *mattk;
303.  {
304.  	if(vis){
305.  		int compat;
306.  		char buf[BUFSZ];
307.  
308.  		if(mdef->m_ap_type) seemimic(mdef);
309.  		if(magr->m_ap_type) seemimic(magr);
310.  		if((compat = could_seduce(magr,mdef,mattk)) && !magr->mcan) {
311.  			Sprintf(buf, "%s %s", Monnam(magr),
312.  				mdef->mcansee ? "smiles at" : "talks to");
313.  			pline("%s %s %s.", buf, mon_nam(mdef),
314.  				compat == 2 ?
315.  					"engagingly" : "seductively");
316.  		} else {
317.  		    char magr_name[BUFSZ];
318.  
319.  		    Strcpy(magr_name, Monnam(magr));
320.  		    switch (mattk->aatyp) {
321.  			case AT_BITE:
322.  				Sprintf(buf,"%s bites", magr_name);
323.  				break;
324.  			case AT_STNG:
325.  				Sprintf(buf,"%s stings", magr_name);
326.  				break;
327.  			case AT_BUTT:
328.  				Sprintf(buf,"%s butts", magr_name);
329.  				break;
330.  			case AT_TUCH:
331.  				Sprintf(buf,"%s touches", magr_name);
332.  				break;
333.  			case AT_TENT:
334.  				Sprintf(buf, "%s tentacles suck",
335.  					s_suffix(magr_name));
336.  				break;
337.  			case AT_HUGS:
338.  				if (magr != u.ustuck) {
339.  				    Sprintf(buf,"%s squeezes", magr_name);
340.  				    break;
341.  				}
342.  			default:
343.  				Sprintf(buf,"%s hits", magr_name);
344.  		    }
345.  		}
346.  		pline("%s %s.", buf, mon_nam(mdef));
347.  	} else  noises(magr, mattk);
348.  	return(mdamagem(magr, mdef, mattk));
349.  }
350.  
351.  /* Returns the same values as mdamagem(). */
352.  static int
353.  gazemm(magr, mdef, mattk)
354.  	register struct monst *magr, *mdef;
355.  	struct attack *mattk;
356.  {
357.  	char buf[BUFSZ];
358.  
359.  	if(vis) {
360.  		Sprintf(buf,"%s gazes at", Monnam(magr));
361.  		pline("%s %s...", buf, mon_nam(mdef));
362.  	}
363.  
364.  	if (!mdef->mcansee || mdef->msleep) {
365.  	    if(vis) pline("but nothing happens.");
366.  	    return(MM_MISS);
367.  	}
368.  
369.  	return(mdamagem(magr, mdef, mattk));
370.  }
371.  
372.  /* Returns the same values as mattackm(). */
373.  static int
374.  gulpmm(magr, mdef, mattk)
375.  	register struct monst *magr, *mdef;
376.  	register struct	attack *mattk;
377.  {
378.  	xchar	ax, ay, dx, dy;
379.  	int	status;
380.  	char buf[BUFSZ];
381.  	struct obj *obj;
382.  
383.  	if (mdef->data->msize >= MZ_HUGE) return MM_MISS;
384.  
385.  	if (vis) {
386.  		Sprintf(buf,"%s swallows", Monnam(magr));
387.  		pline("%s %s.", buf, mon_nam(mdef));
388.  	}
389.  	for (obj = mdef->minvent; obj; obj = obj->nobj)
390.  	    (void) snuff_lit(obj);
391.  
392.  	/*
393.  	 *  All of this maniuplation is needed to keep the display correct.
394.  	 *  There is a flush at the next pline().
395.  	 */
396.  	ax = magr->mx;
397.  	ay = magr->my;
398.  	dx = mdef->mx;
399.  	dy = mdef->my;
400.  	/*
401.  	 *  Leave the defender in the monster chain at it's current position,
402.  	 *  but don't leave it on the screen.  Move the agressor to the def-
403.  	 *  ender's position.
404.  	 */
405.  	remove_monster(ax, ay);
406.  	place_monster(magr, dx, dy);
407.  	newsym(ax,ay);			/* erase old position */
408.  	newsym(dx,dy);			/* update new position */
409.  
410.  	status = mdamagem(magr, mdef, mattk);
411.  
412.  	if ((status & MM_AGR_DIED) && (status & MM_DEF_DIED)) {
413.  	    ;					/* both died -- do nothing  */
414.  	}
415.  	else if (status & MM_DEF_DIED) {	/* defender died */
416.  	    /*
417.  	     *  Note:  remove_monster() was called in relmon(), wiping out
418.  	     *  magr from level.monsters[mdef->mx][mdef->my].  We need to
419.  	     *  put it back and display it.	-kd
420.  	     */
421.  	    place_monster(magr, dx, dy);
422.  	    newsym(dx, dy);
423.  	}
424.  	else if (status & MM_AGR_DIED) {	/* agressor died */
425.  	    place_monster(mdef, dx, dy);
426.  	    newsym(dx, dy);
427.  	}
428.  	else {					/* both alive, put them back */
429.  	    if (cansee(dx, dy))
430.  		pline("%s is regurgitated!", Monnam(mdef));
431.  
432.  	    place_monster(magr, ax, ay);
433.  	    place_monster(mdef, dx, dy);
434.  	    newsym(ax, ay);
435.  	    newsym(dx, dy);
436.  	}
437.  
438.  	return status;
439.  }
440.  
441.  static int
442.  explmm(magr, mdef, mattk)
443.  	register struct monst *magr, *mdef;
444.  	register struct	attack *mattk;
445.  {
446.  	int result;
447.  
448.  	if(cansee(magr->mx, magr->my))
449.  		pline("%s explodes!", Monnam(magr));
450.  	else	noises(magr, mattk);
451.  
452.  	result = mdamagem(magr, mdef, mattk);
453.  
454.  	/* Kill off agressor if it didn't die. */
455.  	if (!(result & MM_AGR_DIED)) {
456.  	    mondead(magr);
457.  	    if (magr->mhp > 0) return result;	/* life saved */
458.  	    result |= MM_AGR_DIED;
459.  	}
460.  	if (magr->mtame)	/* give this one even if it was visible */
461.  	    You(brief_feeling, "melancholy");
462.  
463.  	return result;
464.  }
465.  
466.  /*
467.   *  See comment at top of mattackm(), for return values.
468.   */
469.  static int
470.  mdamagem(magr, mdef, mattk)
471.  	register struct monst	*magr, *mdef;
472.  	register struct attack	*mattk;
473.  {
474.  	struct	permonst *pa = magr->data, *pd = mdef->data;
475.  	int	tmp = d((int)mattk->damn,(int)mattk->damd);
476.  	char buf[BUFSZ];
477.  
478.  	if (pd == &mons[PM_COCKATRICE] && !resists_ston(magr) &&
479.  	   (mattk->aatyp != AT_WEAP || !otmp) &&
480.  	   (mattk->aatyp != AT_GAZE && mattk->aatyp != AT_EXPL) &&
481.  	   !(magr->misc_worn_check & W_ARMG)) {
482.  		if (poly_when_stoned(pa)) {
483.  		    mon_to_stone(magr);
484.  		    return MM_HIT; /* no damage during the polymorph */
485.  		}
486.  		if (vis) pline("%s turns to stone!", Monnam(magr));
487.  		monstone(magr);
488.  		if (magr->mhp > 0) return 0;
489.  		else if (magr->mtame && !vis)
490.  		    You(brief_feeling, "peculiarly sad");
491.  		return MM_AGR_DIED;
492.  	}
493.  
494.  	switch(mattk->adtyp) {
495.  	    case AD_DGST:
496.  		/* eating a Rider or its corpse is fatal */
497.  		if (is_rider(mdef->data)) {
498.  		    if (vis)
499.  			pline("%s %s!", Monnam(magr),
500.  			      mdef->data == &mons[PM_FAMINE] ?
501.  				"belches feebly, shrivels up and dies" :
502.  			      mdef->data == &mons[PM_PESTILENCE] ?
503.  				"coughs spasmodically and collapses" :
504.  				"vomits violently and drops dead");
505.  		    mondied(magr);
506.  		    if (magr->mhp > 0) return 0;	/* lifesaved */
507.  		    else if (magr->mtame && !vis)
508.  			You(brief_feeling, "queasy");
509.  		    return MM_AGR_DIED;
510.  		}
511.  		if(flags.verbose && flags.soundok) verbalize("Burrrrp!");
512.  		tmp = mdef->mhp;
513.  		break;
514.  	    case AD_STUN:
515.  		if (magr->mcan) break;
516.  		if(vis) pline("%s staggers for a moment.", Monnam(mdef));
517.  		mdef->mstun = 1;
518.  		/* fall through */
519.  	    case AD_WERE:
520.  	    case AD_HEAL:
521.  	    case AD_LEGS:
522.  	    case AD_PHYS:
523.  		if (mattk->aatyp == AT_KICK && thick_skinned(pd))
524.  			tmp = 0;
525.  		else if(mattk->aatyp == AT_WEAP) {
526.  		    if(otmp) {
527.  			if (otmp->otyp == CORPSE &&
528.  				otmp->corpsenm == PM_COCKATRICE)
529.  			    goto do_stone_goto_label;
530.  			tmp += dmgval(otmp, mdef);
531.  			if (otmp->oartifact) {
532.  			    (void)artifact_hit(magr,mdef, otmp, &tmp, dieroll);
533.  			    if (mdef->mhp <= 0)
534.  				return (MM_DEF_DIED |
535.  					(grow_up(magr,mdef) ? 0 : MM_AGR_DIED));
536.  			}
537.  			if (tmp)
538.  				mrustm(magr, mdef, otmp);
539.  		    }
540.  		}
541.  		break;
542.  	    case AD_FIRE:
543.  		if (magr->mcan) {
544.  		    tmp = 0;
545.  		    break;
546.  		}
547.  		if (vis)
548.  		    pline("%s is %s!", Monnam(mdef),
549.  			  mattk->aatyp == AT_HUGS ?
550.  				"being roasted" : "on fire");
551.  		tmp += destroy_mitem(mdef, SCROLL_CLASS, AD_FIRE);
552.  		tmp += destroy_mitem(mdef, SPBOOK_CLASS, AD_FIRE);
553.  		if (resists_fire(mdef)) {
554.  		    if (vis)
555.  			pline_The("fire doesn't seem to burn %s!",
556.  								mon_nam(mdef));
557.  		    shieldeff(mdef->mx, mdef->my);
558.  		    golemeffects(mdef, AD_FIRE, tmp);
559.  		    tmp = 0;
560.  		}
561.  		/* only potions damage resistant players in destroy_item */
562.  		tmp += destroy_mitem(mdef, POTION_CLASS, AD_FIRE);
563.  		break;
564.  	    case AD_COLD:
565.  		if (magr->mcan) {
566.  		    tmp = 0;
567.  		    break;
568.  		}
569.  		if (vis) pline("%s is covered in frost!", Monnam(mdef));
570.  		if (resists_cold(mdef)) {
571.  		    if (vis)
572.  			pline_The("frost doesn't seem to chill %s!",
573.  								mon_nam(mdef));
574.  		    shieldeff(mdef->mx, mdef->my);
575.  		    golemeffects(mdef, AD_COLD, tmp);
576.  		    tmp = 0;
577.  		}
578.  		tmp += destroy_mitem(mdef, POTION_CLASS, AD_COLD);
579.  		break;
580.  	    case AD_ELEC:
581.  		if (magr->mcan) {
582.  		    tmp = 0;
583.  		    break;
584.  		}
585.  		if (vis) pline("%s gets zapped!", Monnam(mdef));
586.  		tmp += destroy_mitem(mdef, WAND_CLASS, AD_ELEC);
587.  		if (resists_elec(mdef)) {
588.  		    if (vis) pline_The("zap doesn't shock %s!", mon_nam(mdef));
589.  		    shieldeff(mdef->mx, mdef->my);
590.  		    golemeffects(mdef, AD_ELEC, tmp);
591.  		    tmp = 0;
592.  		}
593.  		/* only rings damage resistant players in destroy_item */
594.  		tmp += destroy_mitem(mdef, RING_CLASS, AD_ELEC);
595.  		break;
596.  	    case AD_ACID:
597.  		if (magr->mcan) {
598.  		    tmp = 0;
599.  		    break;
600.  		}
601.  		if (resists_acid(mdef)) {
602.  		    if (vis)
603.  			pline("%s is covered in acid, but it seems harmless.",
604.  			      Monnam(mdef));
605.  		    tmp = 0;
606.  		} else if (vis) {
607.  		    pline("%s is covered in acid!", Monnam(mdef));
608.  		    pline("It burns %s!", mon_nam(mdef));
609.  		}
610.  		break;
611.  	    case AD_RUST:
612.  		if (!magr->mcan && pd == &mons[PM_IRON_GOLEM]) {
613.  			if (vis) pline("%s falls to pieces!", Monnam(mdef));
614.  			mondied(mdef);
615.  			if (mdef->mhp > 0) return 0;
616.  			else if (mdef->mtame && !vis)
617.  			    pline("May %s rust in peace.", mon_nam(mdef));
618.  			return (MM_DEF_DIED | (grow_up(magr,mdef) ?
619.  							0 : MM_AGR_DIED));
620.  		}
621.  		tmp = 0;
622.  		break;
623.  	    case AD_DCAY:
624.  		if (!magr->mcan && (pd == &mons[PM_WOOD_GOLEM] ||
625.  		    pd == &mons[PM_LEATHER_GOLEM])) {
626.  			if (vis) pline("%s falls to pieces!", Monnam(mdef));
627.  			mondied(mdef);
628.  			if (mdef->mhp > 0) return 0;
629.  			else if (mdef->mtame && !vis)
630.  			    pline("May %s rot in peace.", mon_nam(mdef));
631.  			return (MM_DEF_DIED | (grow_up(magr,mdef) ?
632.  							0 : MM_AGR_DIED));
633.  		}
634.  		tmp = 0;
635.  		break;
636.  	    case AD_STON:
637.  do_stone_goto_label:
638.  		/* may die from the acid if it eats a stone-curing corpse */
639.  		if (munstone(mdef, FALSE)) goto label2;
640.  		if (poly_when_stoned(pd)) {
641.  			mon_to_stone(mdef);
642.  			tmp = 0;
643.  			break;
644.  		}
645.  		if (!resists_ston(mdef)) {
646.  			if (vis) pline("%s turns to stone!", Monnam(mdef));
647.  			monstone(mdef);
648.  label2:			if (mdef->mhp > 0) return 0;
649.  			else if (mdef->mtame && !vis)
650.  			    You(brief_feeling, "peculiarly sad");
651.  			return (MM_DEF_DIED | (grow_up(magr,mdef) ?
652.  							0 : MM_AGR_DIED));
653.  		}
654.  		tmp = (mattk->adtyp == AD_STON ? 0 : 1);
655.  		break;
656.  	    case AD_TLPT:
657.  		if (!magr->mcan && tmp < mdef->mhp && !tele_restrict(mdef)) {
658.  		    char mdef_Monnam[BUFSZ];
659.  		    /* save the name before monster teleports, otherwise
660.  		       we'll get "it" in the suddenly disappears message */
661.  		    if (vis) Strcpy(mdef_Monnam, Monnam(mdef));
662.  		    rloc(mdef);
663.  		    if (vis && !cansee(mdef->mx, mdef->my))
664.  			pline("%s suddenly disappears!", mdef_Monnam);
665.  		}
666.  		break;
667.  	    case AD_SLEE:
668.  		if (!magr->mcan && !mdef->msleep &&
669.  			sleep_monst(mdef, rnd(10), -1)) {
670.  		    if (vis) {
671.  			Strcpy(buf, Monnam(mdef));
672.  			pline("%s is put to sleep by %s.", buf, mon_nam(magr));
673.  		    }
674.  		    slept_monst(mdef);
675.  		}
676.  		break;
677.  	    case AD_PLYS:
678.  		if(!magr->mcan && mdef->mcanmove) {
679.  		    if (vis) {
680.  			Strcpy(buf, Monnam(mdef));
681.  			pline("%s is frozen by %s.", buf, mon_nam(magr));
682.  		    }
683.  		    mdef->mcanmove = 0;
684.  		    mdef->mfrozen = rnd(10);
685.  		}
686.  		break;
687.  	    case AD_SLOW:
688.  		if(!magr->mcan && vis && mdef->mspeed != MSLOW) {
689.  		    if (vis) pline("%s slows down.", Monnam(mdef));
690.  		    if (mdef->mspeed == MFAST) mdef->mspeed = 0;
691.  		    else mdef->mspeed = MSLOW;
692.  		}
693.  		break;
694.  	    case AD_CONF:
695.  		/* Since confusing another monster doesn't have a real time
696.  		 * limit, setting spec_used would not really be right (though
697.  		 * we still should check for it).
698.  		 */
699.  		if (!magr->mcan && !mdef->mconf && !magr->mspec_used) {
700.  		    if (vis) pline("%s looks confused.", Monnam(mdef));
701.  		    mdef->mconf = 1;
702.  		}
703.  		break;
704.  	    case AD_BLND:
705.  		if (!magr->mcan && haseyes(pd)) {
706.  		    register unsigned rnd_tmp;
707.  
708.  		    if (vis && mdef->mcansee)
709.  			pline("%s is blinded.", Monnam(mdef));
710.  		    rnd_tmp = d((int)mattk->damn, (int)mattk->damd);
711.  		    if ((rnd_tmp += mdef->mblinded) > 127) rnd_tmp = 127;
712.  		    mdef->mblinded = rnd_tmp;
713.  		    mdef->mcansee = 0;
714.  		}
715.  		tmp = 0;
716.  		break;
717.  	    case AD_HALU:
718.  		if (!magr->mcan && haseyes(pd) && mdef->mcansee) {
719.  		    if (vis) pline("%s looks %sconfused.",
720.  				    Monnam(mdef), mdef->mconf ? "more " : "");
721.  		    mdef->mconf = 1;
722.  		}
723.  		tmp = 0;
724.  		break;
725.  	    case AD_CURS:
726.  		if (!night() && (pa == &mons[PM_GREMLIN])) break;
727.  		if (!magr->mcan && !rn2(10)) {
728.  		    mdef->mcan = 1;	/* cancelled regardless of lifesave */
729.  		    if (is_were(pd) && pd->mlet != S_HUMAN)
730.  			were_change(mdef);
731.  		    if (pd == &mons[PM_CLAY_GOLEM]) {
732.  			    if (vis) {
733.  				pline("Some writing vanishes from %s head!",
734.  				    s_suffix(mon_nam(mdef)));
735.  				pline("%s is destroyed!", Monnam(mdef));
736.  			    }
737.  			    mondied(mdef);
738.  			    if (mdef->mhp > 0) return 0;
739.  			    else if (mdef->mtame && !vis)
740.  				You(brief_feeling, "strangely sad");
741.  			    return (MM_DEF_DIED | (grow_up(magr,mdef) ?
742.  							0 : MM_AGR_DIED));
743.  		    }
744.  		    if (flags.soundok) {
745.  			    if (!vis) You_hear("laughter.");
746.  			    else pline("%s chuckles.", Monnam(magr));
747.  		    }
748.  		}
749.  		break;
750.  	    case AD_SGLD:
751.  		tmp = 0;
752.  		if (magr->mcan || !mdef->mgold) break;
753.  		/* technically incorrect; no check for stealing gold from
754.  		 * between mdef's feet...
755.  		 */
756.  		magr->mgold += mdef->mgold;
757.  		mdef->mgold = 0;
758.  		if (vis) {
759.  			Strcpy(buf, Monnam(magr));
760.  			pline("%s steals some gold from %s.", buf,
761.  								mon_nam(mdef));
762.  		}
763.  		break;
764.  	    case AD_DRLI:
765.  		if (rn2(2) && !resists_drli(mdef)) {
766.  			tmp = d(2,6);
767.  			if (vis)
768.  			    pline("%s suddenly seems weaker!", Monnam(mdef));
769.  			mdef->mhpmax -= tmp;
770.  			if (mdef->m_lev == 0)
771.  				tmp = mdef->mhp;
772.  			else mdef->m_lev--;
773.  			/* Automatic kill if drained past level 0 */
774.  		}
775.  		break;
776.  #ifdef SEDUCE
777.  	    case AD_SSEX:
778.  #endif
779.  	    case AD_SITM:	/* for now these are the same */
780.  	    case AD_SEDU:
781.  		if (!magr->mcan && mdef->minvent) {
782.  			char onambuf[BUFSZ];
783.  
784.  			otmp = mdef->minvent;
785.  			obj_extract_self(otmp);
786.  			if (otmp->owornmask) {
787.  				mdef->misc_worn_check &= ~otmp->owornmask;
788.  				otmp->owornmask = 0L;
789.  				update_mon_intrinsics(mdef, otmp, FALSE);
790.  			}
791.  			/* add_to_minv() might free otmp [if it merges] */
792.  			if (vis)
793.  				Strcpy(onambuf, doname(otmp));
794.  			add_to_minv(magr, otmp);
795.  			if (vis) {
796.  				Strcpy(buf, Monnam(magr));
797.  				pline("%s steals %s from %s!", buf,
798.  				      onambuf, mon_nam(mdef));
799.  			}
800.  			possibly_unwield(mdef);
801.  			mselftouch(mdef, (const char *)0, FALSE);
802.  			if (mdef->mhp <= 0)
803.  				return (MM_DEF_DIED | (grow_up(magr,mdef) ?
804.  							0 : MM_AGR_DIED));
805.  		}
806.  		tmp = 0;
807.  		break;
808.  	    case AD_DRST:
809.  	    case AD_DRDX:
810.  	    case AD_DRCO:
811.  		if (!magr->mcan && !rn2(8)) {
812.  		    if (vis)
813.  			pline("%s %s was poisoned!", s_suffix(Monnam(magr)),
814.  			      mpoisons_subj(magr, mattk));
815.  		    if (resists_poison(mdef)) {
816.  			if (vis)
817.  			    pline_The("poison doesn't seem to affect %s.",
818.  				mon_nam(mdef));
819.  		    } else {
820.  			if (rn2(10)) tmp += rn1(10,6);
821.  			else {
822.  			    if (vis) pline_The("poison was deadly...");
823.  			    tmp = mdef->mhp;
824.  			}
825.  		    }
826.  		}
827.  		break;
828.  	    case AD_DRIN:
829.  		if (!has_head(pd)) {
830.  		    if (vis) pline("%s doesn't seem harmed.", Monnam(mdef));
831.  		    tmp = 0;
832.  		    break;
833.  		}
834.  		if ((mdef->misc_worn_check & W_ARMH) && rn2(8)) {
835.  		    if (vis) {
836.  			Strcpy(buf, s_suffix(Monnam(mdef)));
837.  			pline("%s helmet blocks %s attack to his head.",
838.  				buf, s_suffix(mon_nam(magr)));
839.  		    }
840.  		    break;
841.  		}
842.  		if (vis) pline("%s brain is eaten!", s_suffix(Monnam(mdef)));
843.  		if (mindless(pd)) {
844.  		    if (vis) pline("%s doesn't notice.", Monnam(mdef));
845.  		    break;
846.  		}
847.  		tmp += rnd(10); /* fakery, since monsters lack INT scores */
848.  		if (magr->mtame && !magr->isminion) {
849.  		    EDOG(magr)->hungrytime += rnd(60);
850.  		    magr->mconf = 0;
851.  		}
852.  		if (tmp >= mdef->mhp && vis)
853.  		    pline("%s last thought fades away...",
854.  			          s_suffix(Monnam(mdef)));
855.  		break;
856.  	    case AD_STCK:
857.  	    case AD_WRAP: /* monsters cannot grab one another, it's too hard */
858.  		break;
859.  	    default:	tmp = 0;
860.  			break;
861.  	}
862.  	if(!tmp) return(MM_MISS);
863.  
864.  	if((mdef->mhp -= tmp) < 1) {
865.  	    if (m_at(mdef->mx, mdef->my) == magr) {  /* see gulpmm() */
866.  		remove_monster(mdef->mx, mdef->my);
867.  		place_monster(mdef, mdef->mx, mdef->my);
868.  	    }
869.  	    monkilled(mdef, "", (int)mattk->adtyp);
870.  	    if (mdef->mhp > 0) return 0; /* mdef lifesaved */
871.  	    return (MM_DEF_DIED | (grow_up(magr,mdef) ? 0 : MM_AGR_DIED));
872.  	}
873.  	return(MM_HIT);
874.  }
875.  
876.  #endif /* OVLB */
877.  
878.  
879.  #ifdef OVL0
880.  
881.  int
882.  noattacks(ptr)			/* returns 1 if monster doesn't attack */
883.  	struct	permonst *ptr;
884.  {
885.  	int i;
886.  
887.  	for(i = 0; i < NATTK; i++)
888.  		if(ptr->mattk[i].aatyp) return(0);
889.  
890.  	return(1);
891.  }
892.  
893.  /* `mon' is hit by a sleep attack; return 1 if it's affected, 0 otherwise */
894.  int
895.  sleep_monst(mon, amt, how)
896.  struct monst *mon;
897.  int amt, how;
898.  {
899.  	if (resists_sleep(mon) ||
900.  		(how >= 0 && resist(mon, (char)how, 0, NOTELL))) {
901.  	    shieldeff(mon->mx, mon->my);
902.  	} else if (mon->mcanmove) {
903.  	    amt += (int) mon->mfrozen;
904.  	    mon->mcanmove = 0;
905.  	    mon->mfrozen = min(amt, 127);
906.  	    return 1;
907.  	}
908.  	return 0;
909.  }
910.  
911.  /* sleeping grabber releases, engulfer doesn't; don't use for paralysis! */
912.  void
913.  slept_monst(mon)
914.  struct monst *mon;
915.  {
916.  	if ((mon->msleep || !mon->mcanmove) && mon == u.ustuck &&
917.  		!sticks(uasmon) && !u.uswallow) {
918.  	    pline("%s grip relaxes.", s_suffix(Monnam(mon)));
919.  	    unstuck(mon);
920.  	}
921.  }
922.  
923.  #endif /* OVL0 */
924.  #ifdef OVLB
925.  
926.  static void
927.  mrustm(magr, mdef, obj)
928.  register struct monst *magr, *mdef;
929.  register struct obj *obj;
930.  {
931.  	if (!magr || !mdef || !obj) return; /* just in case */
932.  	if (mdef->data == &mons[PM_RUST_MONSTER] && !mdef->mcan &&
933.  	    is_rustprone(obj) && obj->oeroded < MAX_ERODE) {
934.  		if (obj->greased || obj->oerodeproof || (obj->blessed && rn2(3))) {
935.  		    if (cansee(mdef->mx, mdef->my) && flags.verbose)
936.  			pline("%s weapon is not affected.",
937.  			                 s_suffix(Monnam(magr)));
938.  		    if (obj->greased && !rn2(2)) obj->greased = 0;
939.  		} else {
940.  		    if (cansee(mdef->mx, mdef->my)) {
941.  			pline("%s %s%s!", s_suffix(Monnam(magr)),
942.  			      aobjnam(obj, "rust"),
943.  			      obj->oeroded ? " further" : "");
944.  		    }
945.  		    obj->oeroded++;
946.  		}
947.  	}
948.  }
949.  
950.  static void
951.  mswingsm(magr, mdef, otemp)
952.  register struct monst *magr, *mdef;
953.  register struct obj *otemp;
954.  {
955.  	char buf[BUFSZ];
956.  	Strcpy(buf, mon_nam(mdef));
957.  	if (!flags.verbose || Blind) return;
958.  	pline("%s %s %s %s at %s.", Monnam(magr),
959.  	      (objects[otemp->otyp].oc_dir & PIERCE) ? "thrusts" : "swings",
960.  	      his[pronoun_gender(magr)], xname(otemp), buf);
961.  }
962.  
963.  /*
964.   * Passive responses by defenders.  Does not replicate responses already
965.   * handled above.  Returns same values as mattackm.
966.   */
967.  static int
968.  passivemm(magr,mdef,mhit,mdead)
969.  register struct monst *magr, *mdef;
970.  boolean mhit;
971.  int mdead;
972.  {
973.  	register struct permonst *mddat = mdef->data;
974.  	register struct permonst *madat = magr->data;
975.  	char buf[BUFSZ];
976.  	int i, tmp;
977.  
978.  	for(i = 0; ; i++) {
979.  	    if(i >= NATTK) return (mdead | mhit); /* no passive attacks */
980.  	    if(mddat->mattk[i].aatyp == AT_NONE) break;
981.  	}
982.  	if (mddat->mattk[i].damn)
983.  	    tmp = d((int)mddat->mattk[i].damn,
984.  				    (int)mddat->mattk[i].damd);
985.  	else if(mddat->mattk[i].damd)
986.  	    tmp = d((int)mddat->mlevel+1, (int)mddat->mattk[i].damd);
987.  	else
988.  	    tmp = 0;
989.  
990.  	/* These affect the enemy even if defender killed */
991.  	switch(mddat->mattk[i].adtyp) {
992.  	    case AD_ACID:
993.  		if (mhit && !rn2(2)) {
994.  		    Strcpy(buf, Monnam(magr));
995.  		    if(canseemon(magr))
996.  			pline("%s is splashed by %s acid!",
997.  			      buf, s_suffix(mon_nam(mdef)));
998.  		    if (resists_acid(magr)) {
999.  			if(canseemon(magr))
1000. 			    pline("%s is not affected.", Monnam(magr));
1001. 			tmp = 0;
1002. 		    }
1003. 		} else tmp = 0;
1004. 		goto assess_dmg;
1005. 	    default:
1006. 		break;
1007. 	}
1008. 	if (mdead || mdef->mcan) return (mdead|mhit);
1009. 
1010. 	/* These affect the enemy only if defender is still alive */
1011. 	if (rn2(3)) switch(mddat->mattk[i].adtyp) {
1012. 	    case AD_PLYS: /* Floating eye */
1013. 		if (tmp > 127) tmp = 127;
1014. 		if (mddat == &mons[PM_FLOATING_EYE]) {
1015. 		    if (!rn2(4)) tmp = 127;
1016. 		    if (magr->mcansee && haseyes(madat) && mdef->mcansee &&
1017. 			(perceives(madat) || !mdef->minvis)) {
1018. 			Sprintf(buf, "%s gaze is reflected by %%s %%s.",
1019. 				s_suffix(mon_nam(mdef)));
1020. 			if (mon_reflects(magr,
1021. 					 canseemon(magr) ? buf : (char *)0))
1022. 				return(mdead|mhit);
1023. 			Strcpy(buf, Monnam(magr));
1024. 			if(canseemon(magr))
1025. 			    pline("%s is frozen by %s gaze!",
1026. 				  buf, s_suffix(mon_nam(mdef)));
1027. 			magr->mcanmove = 0;
1028. 			magr->mfrozen = tmp;
1029. 			return (mdead|mhit);
1030. 		    }
1031. 		} else { /* gelatinous cube */
1032. 		    Strcpy(buf, Monnam(magr));
1033. 		    if(canseemon(magr))
1034. 			pline("%s is frozen by %s.", buf, mon_nam(mdef));
1035. 		    magr->mcanmove = 0;
1036. 		    magr->mfrozen = tmp;
1037. 		    return (mdead|mhit);
1038. 		}
1039. 		return 1;
1040. 	    case AD_COLD:
1041. 		if (resists_cold(magr)) {
1042. 		    if (canseemon(magr)) {
1043. 			pline("%s is mildly chilly.", Monnam(magr));
1044. 			golemeffects(magr, AD_COLD, tmp);
1045. 		    }
1046. 		    tmp = 0;
1047. 		    break;
1048. 		}
1049. 		if(canseemon(magr))
1050. 		    pline("%s is suddenly very cold!", Monnam(magr));
1051. 		mdef->mhp += tmp / 2;
1052. 		if (mdef->mhpmax < mdef->mhp) mdef->mhpmax = mdef->mhp;
1053. 		if (mdef->mhpmax > ((int) (mdef->m_lev+1) * 8)) {
1054. 		    register struct monst *mtmp;
1055. 
1056. 		    if ((mtmp = clone_mon(mdef)) != 0) {
1057. 			mtmp->mhpmax = mdef->mhpmax /= 2;
1058. 			if(canseemon(magr)) {
1059. 			    Strcpy(buf, Monnam(mdef));
1060. 			    pline("%s multiplies from %s heat!",
1061. 				    buf, s_suffix(mon_nam(magr)));
1062. 			}
1063. 		    }
1064. 		}
1065. 		break;
1066. 	    case AD_STUN:
1067. 		if (!magr->mstun) {
1068. 		    magr->mstun = 1;
1069. 		    if (canseemon(magr))
1070. 			pline("%s staggers...", Monnam(magr));
1071. 		}
1072. 		tmp = 0;
1073. 		break;
1074. 	    case AD_FIRE:
1075. 		if (resists_fire(magr)) {
1076. 		    if (canseemon(magr)) {
1077. 			pline("%s is mildly warmed.", Monnam(magr));
1078. 			golemeffects(magr, AD_FIRE, tmp);
1079. 		    }
1080. 		    tmp = 0;
1081. 		    break;
1082. 		}
1083. 		if(canseemon(magr))
1084. 		    pline("%s is suddenly very hot!", Monnam(magr));
1085. 		break;
1086. 	    case AD_ELEC:
1087. 		if (resists_elec(magr)) {
1088. 		    if (canseemon(magr)) {
1089. 			pline("%s is mildly tingled.", Monnam(magr));
1090. 			golemeffects(magr, AD_ELEC, tmp);
1091. 		    }
1092. 		    tmp = 0;
1093. 		    break;
1094. 		}
1095. 		if(canseemon(magr))
1096. 		    pline("%s is jolted with electricity!", Monnam(magr));
1097. 		break;
1098. 	    default: tmp = 0;
1099. 		break;
1100. 	}
1101. 	else tmp = 0;
1102. 
1103.     assess_dmg:
1104. 	if((magr->mhp -= tmp) <= 0) {
1105. 		monkilled(magr, "", (int)mddat->mattk[i].adtyp);
1106. 		return (mdead | mhit | MM_AGR_DIED);
1107. 	}
1108. 	return (mdead | mhit);
1109. }
1110. 
1111. #endif /* OVLB */
1112. 
1113. /*mhitm.c*/