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Source:NetHack 3.2.0/muse.c

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Below is the full text to muse.c from the source code of NetHack 3.2.0. To link to a particular line, write [[NetHack 3.2.0/muse.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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1.    /*	SCCS Id: @(#)muse.c	3.2	96/02/14	*/
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 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 int FDECL(precheck, (struct monst *,struct obj *));
23.   static void FDECL(mzapmsg, (struct monst *,struct obj *,BOOLEAN_P));
24.   static void FDECL(mreadmsg, (struct monst *,struct obj *));
25.   static void FDECL(mquaffmsg, (struct monst *,struct obj *));
26.   STATIC_PTR int FDECL(mbhitm, (struct monst *,struct obj *));
27.   static void FDECL(mbhit,
28.   	(struct monst *,int,int FDECL((*),(MONST_P,OBJ_P)),
29.   	int FDECL((*),(OBJ_P,OBJ_P)),struct obj *));
30.   static 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 int
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.   		    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);
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.   	    if (potion_descr && !strcmp(potion_descr, "smoky") &&
94.   		    flags.djinni_count < MAXMONNO &&
95.   		    !rn2(POTION_OCCUPANT_CHANCE(flags.djinni_count))) {
96.   		if (!enexto(&cc, mon->mx, mon->my, &mons[PM_DJINNI])) return 0;
97.   		mquaffmsg(mon, obj);
98.   		m_useup(mon, obj);
99.   		mtmp = makemon(&mons[PM_DJINNI], cc.x, cc.y);
100.  		if (!mtmp) {
101.  		    if (vis) pline(empty);
102.  		} else {
103.  		    if (vis)
104.  			pline("In a cloud of smoke, %s emerges!",
105.  							a_monnam(mtmp));
106.  		    pline("%s speaks.", vis ? Monnam(mtmp) : Something);
107.  		/* I suspect few players will be upset that monsters */
108.  		/* can't wish for wands of death here.... */
109.  		    if (rn2(2)) {
110.  			verbalize("You freed me!");
111.  			mtmp->mpeaceful = 1;
112.  			set_malign(mtmp);
113.  		    } else {
114.  			verbalize("It is about time.");
115.  			if (vis) pline("%s vanishes.", Monnam(mtmp));
116.  			mongone(mtmp);
117.  		    }
118.  		}
119.  		return 2;
120.  	    }
121.  	}
122.  	if (obj->oclass == WAND_CLASS && obj->cursed && !rn2(100)) {
123.  	    int dam = d(obj->spe+2, 6);
124.  
125.  	    if (flags.soundok) {
126.  		if (vis) pline("%s zaps %s, which suddenly explodes!",
127.  			Monnam(mon), an(xname(obj)));
128.  		else You_hear("a zap and an explosion in the distance.");
129.  	    }
130.  	    m_useup(mon, obj);
131.  	    if (mon->mhp <= dam) {
132.  		monkilled(mon, "", AD_RBRE);
133.  		return 1;
134.  	    }
135.  	    else mon->mhp -= dam;
136.  	    m.has_defense = m.has_offense = m.has_misc = 0;
137.  	    /* Only one needed to be set to 0 but the others are harmless */
138.  	}
139.  	return 0;
140.  }
141.  
142.  static void
143.  mzapmsg(mtmp, otmp, self)
144.  struct monst *mtmp;
145.  struct obj *otmp;
146.  boolean self;
147.  {
148.  	if (!canseemon(mtmp)) {
149.  		if (flags.soundok)
150.  			You_hear("a distant zap.");
151.  	} else if (self)
152.  		pline("%s zaps %sself with %s!",
153.  		      Monnam(mtmp), him[pronoun_gender(mtmp)], doname(otmp));
154.  	else {
155.  		pline("%s zaps %s!", Monnam(mtmp), an(xname(otmp)));
156.  		stop_occupation();
157.  	}
158.  }
159.  
160.  static void
161.  mreadmsg(mtmp, otmp)
162.  struct monst *mtmp;
163.  struct obj *otmp;
164.  {
165.  	boolean vismon = (canseemon(mtmp));
166.  	if (flags.soundok)
167.  		otmp->dknown = 1;
168.  	if (!vismon) {
169.  		if (flags.soundok)
170.  		    You_hear("%s reading %s.",
171.  			an(Hallucination ? rndmonnam() : mtmp->data->mname),
172.  			singular(otmp, doname));
173.  	} else pline("%s reads %s!", Monnam(mtmp), singular(otmp,doname));
174.  	if (mtmp->mconf && (vismon || flags.soundok))
175.  		pline("Being confused, %s mispronounces the magic words...",
176.  		      vismon ? mon_nam(mtmp) : he[pronoun_gender(mtmp)]);
177.  }
178.  
179.  static void
180.  mquaffmsg(mtmp, otmp)
181.  struct monst *mtmp;
182.  struct obj *otmp;
183.  {
184.  	if (canseemon(mtmp)) {
185.  		otmp->dknown = 1;
186.  		pline("%s drinks %s!", Monnam(mtmp), singular(otmp, doname));
187.  	} else
188.  		if (flags.soundok)
189.  			You_hear("a chugging sound.");
190.  }
191.  
192.  /* Defines for various types of stuff.  The order in which monsters prefer
193.   * to use them is determined by the order of the code logic, not the
194.   * numerical order in which they are defined.
195.   */
196.  #define MUSE_SCR_TELEPORTATION 1
197.  #define MUSE_WAN_TELEPORTATION_SELF 2
198.  #define MUSE_POT_HEALING 3
199.  #define MUSE_POT_EXTRA_HEALING 4
200.  #define MUSE_WAN_DIGGING 5
201.  #define MUSE_TRAPDOOR 6
202.  #define MUSE_TELEPORT_TRAP 7
203.  #define MUSE_UPSTAIRS 8
204.  #define MUSE_DOWNSTAIRS 9
205.  #define MUSE_WAN_CREATE_MONSTER 10
206.  #define MUSE_SCR_CREATE_MONSTER 11
207.  #define MUSE_UP_LADDER 12
208.  #define MUSE_DN_LADDER 13
209.  #define MUSE_SSTAIRS 14
210.  #define MUSE_WAN_TELEPORTATION 15
211.  #define MUSE_BUGLE 16
212.  #define MUSE_UNICORN_HORN 17
213.  /*
214.  #define MUSE_INNATE_TPT 9999
215.   * We cannot use this.  Since monsters get unlimited teleportation, if they
216.   * were allowed to teleport at will you could never catch them.  Instead,
217.   * assume they only teleport at random times, despite the inconsistency that if
218.   * you polymorph into one you teleport at will.
219.   */
220.  
221.  /* Select a defensive item/action for a monster.  Returns TRUE iff one is
222.   * found.
223.   */
224.  boolean
225.  find_defensive(mtmp)
226.  struct monst *mtmp;
227.  {
228.  	register struct obj *obj = 0;
229.  	struct trap *t;
230.  	int x=mtmp->mx, y=mtmp->my;
231.  	boolean stuck = (mtmp == u.ustuck);
232.  	boolean immobile = (mtmp->data->mmove == 0);
233.  	int fraction;
234.  
235.  	if (is_animal(mtmp->data) || mindless(mtmp->data))
236.  		return FALSE;
237.  	if(dist2(x, y, mtmp->mux, mtmp->muy) > 25)
238.  		return FALSE;
239.  	if (u.uswallow && stuck) return FALSE;
240.  
241.  	m.defensive = (struct obj *)0;
242.  	m.has_defense = 0;
243.  
244.  	/* since unicorn horns don't get used up, the monster would look
245.  	 * silly trying to use the same cursed horn round after round
246.  	 */
247.  	if (mtmp->mconf || mtmp->mstun || !mtmp->mcansee) {
248.  	    if (mtmp->data->mlet != S_UNICORN && !nohands(mtmp->data)) {
249.  		for(obj = mtmp->minvent; obj; obj = obj->nobj)
250.  		    if (obj->otyp == UNICORN_HORN && !obj->cursed)
251.  			break;
252.  	    }
253.  	    if (obj || (mtmp->data->mlet == S_UNICORN)) {
254.  		m.defensive = obj;
255.  		m.has_defense = MUSE_UNICORN_HORN;
256.  		return TRUE;
257.  	    }
258.  	}
259.  
260.  	/* It so happens there are two unrelated cases when we might want to
261.  	 * check specifically for healing alone.  The first is when the monster
262.  	 * is blind (healing cures blindness).  The second is when the monster
263.  	 * is peaceful; then we don't want to flee the player, and by
264.  	 * coincidence healing is all there is that doesn't involve fleeing.
265.  	 * These would be hard to combine because of the control flow.
266.  	 */
267.  	if (!mtmp->mcansee && !nohands(mtmp->data)) {
268.  	    if ((obj = m_carrying(mtmp, POT_EXTRA_HEALING)) != 0) {
269.  		m.defensive = obj;
270.  		m.has_defense = MUSE_POT_EXTRA_HEALING;
271.  		return TRUE;
272.  	    }
273.  	    if ((obj = m_carrying(mtmp, POT_HEALING)) != 0) {
274.  		m.defensive = obj;
275.  		m.has_defense = MUSE_POT_HEALING;
276.  		return TRUE;
277.  	    }
278.  	}
279.  
280.  	fraction = u.ulevel < 10 ? 5 : u.ulevel < 14 ? 4 : 3;
281.  	if(mtmp->mhp >= mtmp->mhpmax ||
282.  			(mtmp->mhp >= 10 && mtmp->mhp*fraction >= mtmp->mhpmax))
283.  		return FALSE;
284.  
285.  	if (mtmp->mpeaceful) {
286.  	    if (!nohands(mtmp->data)) {
287.  		if ((obj = m_carrying(mtmp, POT_EXTRA_HEALING)) != 0) {
288.  		    m.defensive = obj;
289.  		    m.has_defense = MUSE_POT_EXTRA_HEALING;
290.  		    return TRUE;
291.  		}
292.  		if ((obj = m_carrying(mtmp, POT_HEALING)) != 0) {
293.  		    m.defensive = obj;
294.  		    m.has_defense = MUSE_POT_HEALING;
295.  		    return TRUE;
296.  		}
297.  	    }
298.  	    return FALSE;
299.  	}
300.  
301.  	if (levl[x][y].typ == STAIRS && !stuck && !immobile) {
302.  		if (x == xdnstair && y == ydnstair)
303.  			m.has_defense = MUSE_DOWNSTAIRS;
304.  		if (x == xupstair && y == yupstair && ledger_no(&u.uz) != 1)
305.  	/* Unfair to let the monsters leave the dungeon with the Amulet */
306.  	/* (or go to the endlevel since you also need it, to get there) */
307.  			m.has_defense = MUSE_UPSTAIRS;
308.  	} else if (levl[x][y].typ == LADDER && !stuck && !immobile) {
309.  		if (x == xupladder && y == yupladder)
310.  			m.has_defense = MUSE_UP_LADDER;
311.  		if (x == xdnladder && y == ydnladder)
312.  			m.has_defense = MUSE_DN_LADDER;
313.  	} else if (sstairs.sx && sstairs.sx == x && sstairs.sy == y) {
314.  		m.has_defense = MUSE_SSTAIRS;
315.  	} else if (!stuck && !immobile) {
316.  	/* Note: trapdoors take precedence over teleport traps. */
317.  		int xx, yy;
318.  
319.  		for(xx = x-1; xx <= x+1; xx++) for(yy = y-1; yy <= y+1; yy++)
320.  		if (isok(xx,yy))
321.  		if (xx != u.ux && yy != u.uy)
322.  		if (mtmp->data != &mons[PM_GRID_BUG] || xx == x || yy == y)
323.  		if ((xx==x && yy==y) || !level.monsters[xx][yy])
324.  		if ((t = t_at(xx,yy)) != 0)
325.  	  	if ((verysmall(mtmp->data) || throws_rocks(mtmp->data) ||
326.  		     passes_walls(mtmp->data)) || !sobj_at(BOULDER, xx, yy))
327.  		if (!onscary(xx,yy,mtmp)) {
328.  			if ((t->ttyp == TRAPDOOR || t->ttyp == HOLE)
329.  				&& !is_floater(mtmp->data)
330.  				&& !mtmp->isshk && !mtmp->isgd
331.  				&& !mtmp->ispriest
332.  				&& Can_fall_thru(&u.uz)
333.  						) {
334.  				trapx = xx;
335.  				trapy = yy;
336.  				m.has_defense = MUSE_TRAPDOOR;
337.  			} else if (t->ttyp == TELEP_TRAP && m.has_defense != MUSE_TRAPDOOR) {
338.  				trapx = xx;
339.  				trapy = yy;
340.  				m.has_defense = MUSE_TELEPORT_TRAP;
341.  			}
342.  		}
343.  	}
344.  
345.  	if (nohands(mtmp->data))	/* can't use objects */
346.  		goto botm;
347.  
348.  	if (is_mercenary(mtmp->data) && (obj = m_carrying(mtmp, BUGLE))) {
349.  		int xx, yy;
350.  		struct monst *mon;
351.  
352.  		/* Distance is arbitrary.  What we really want to do is
353.  		 * have the soldier play the bugle when it sees or
354.  		 * remembers soldiers nearby...
355.  		 */
356.  		for(xx = x-3; xx <= x+3; xx++) for(yy = y-3; yy <= y+3; yy++)
357.  		if (isok(xx,yy))
358.  		if ((mon = m_at(xx,yy)) && is_mercenary(mon->data) &&
359.  				mon->data != &mons[PM_GUARD] &&
360.  				(mon->msleep || (!mon->mcanmove))) {
361.  			m.defensive = obj;
362.  			m.has_defense = MUSE_BUGLE;
363.  		}
364.  	}
365.  
366.  	/* use immediate physical escape prior to attempting magic */
367.  	if (m.has_defense)	/* stairs, trapdoor or tele-trap, bugle alert */
368.  		goto botm;
369.  
370.  	/* kludge to cut down on trap destruction (particularly portals) */
371.  	t = t_at(x,y);
372.  	if (t && (t->ttyp == PIT || t->ttyp == SPIKED_PIT ||
373.  		  t->ttyp == WEB || t->ttyp == BEAR_TRAP))
374.  		t = 0;		/* ok for monster to dig here */
375.  
376.  #define nomore(x) if(m.has_defense==x) continue;
377.  	for (obj = mtmp->minvent; obj; obj = obj->nobj) {
378.  		/* don't always use the same selection pattern */
379.  		if (m.has_defense && !rn2(3)) break;
380.  
381.  		/* nomore(MUSE_WAN_DIGGING); */
382.  		if (m.has_defense == MUSE_WAN_DIGGING) break;
383.  		if (obj->otyp == WAN_DIGGING && obj->spe > 0 && !stuck && !t
384.  		    && !mtmp->isshk && !mtmp->isgd && !mtmp->ispriest
385.  		    && !is_floater(mtmp->data)
386.  		    /* digging wouldn't be effective; assume they know that */
387.  		    && !(levl[x][y].wall_info & W_NONDIGGABLE)
388.  		    && !(Is_botlevel(&u.uz) || In_endgame(&u.uz))
389.  		    && !(is_ice(x,y) || is_pool(x,y) || is_lava(x,y))) {
390.  			m.defensive = obj;
391.  			m.has_defense = MUSE_WAN_DIGGING;
392.  		}
393.  		nomore(MUSE_WAN_TELEPORTATION_SELF);
394.  		nomore(MUSE_WAN_TELEPORTATION);
395.  		if(obj->otyp == WAN_TELEPORTATION && obj->spe > 0) {
396.  			m.defensive = obj;
397.  			m.has_defense = (mon_has_amulet(mtmp))
398.  				? MUSE_WAN_TELEPORTATION
399.  				: MUSE_WAN_TELEPORTATION_SELF;
400.  		}
401.  		nomore(MUSE_SCR_TELEPORTATION);
402.  		if(obj->otyp == SCR_TELEPORTATION && mtmp->mcansee
403.  		   && haseyes(mtmp->data)
404.  		   && (!obj->cursed ||
405.  		       (!(mtmp->isshk && inhishop(mtmp))
406.  			    && !mtmp->isgd && !mtmp->ispriest))) {
407.  			m.defensive = obj;
408.  			m.has_defense = MUSE_SCR_TELEPORTATION;
409.  		}
410.  		nomore(MUSE_POT_EXTRA_HEALING);
411.  		if(obj->otyp == POT_EXTRA_HEALING) {
412.  			m.defensive = obj;
413.  			m.has_defense = MUSE_POT_EXTRA_HEALING;
414.  		}
415.  		nomore(MUSE_WAN_CREATE_MONSTER);
416.  		if(obj->otyp == WAN_CREATE_MONSTER && obj->spe > 0) {
417.  			m.defensive = obj;
418.  			m.has_defense = MUSE_WAN_CREATE_MONSTER;
419.  		}
420.  		nomore(MUSE_POT_HEALING);
421.  		if(obj->otyp == POT_HEALING) {
422.  			m.defensive = obj;
423.  			m.has_defense = MUSE_POT_HEALING;
424.  		}
425.  		nomore(MUSE_SCR_CREATE_MONSTER);
426.  		if(obj->otyp == SCR_CREATE_MONSTER) {
427.  			m.defensive = obj;
428.  			m.has_defense = MUSE_SCR_CREATE_MONSTER;
429.  		}
430.  	}
431.  botm:	return((boolean)(!!m.has_defense));
432.  #undef nomore
433.  }
434.  
435.  /* Perform a defensive action for a monster.  Must be called immediately
436.   * after find_defensive().  Return values are 0: did something, 1: died,
437.   * 2: did something and can't attack again (i.e. teleported).
438.   */
439.  int
440.  use_defensive(mtmp)
441.  struct monst *mtmp;
442.  {
443.  	int i, fleetim, how = 0;
444.  	struct obj *otmp = m.defensive;
445.  	boolean vis, vismon, oseen;
446.  	const char *mcsa = "%s can see again.";
447.  
448.  	if ((i = precheck(mtmp, otmp)) != 0) return i;
449.  	vis = cansee(mtmp->mx, mtmp->my);
450.  	vismon = canseemon(mtmp);
451.  	oseen = otmp && vismon;
452.  
453.  	/* when using defensive choice to run away, we want monster to avoid
454.  	   rushing right straight back; don't override if already scared */
455.  	fleetim = !mtmp->mflee ? (33 - (30 * mtmp->mhp / mtmp->mhpmax)) : 0;
456.  #define m_flee(m)	if (fleetim && !m->iswiz) \
457.  			{ m->mflee = 1; m->mfleetim = fleetim; }
458.  
459.  	switch(m.has_defense) {
460.  	case MUSE_UNICORN_HORN:
461.  		if (vismon) {
462.  		    if (otmp)
463.  			pline("%s grasps %s!", Monnam(mtmp), doname(otmp));
464.  		    else
465.  			pline("The tip of %s's horn glows!", mon_nam(mtmp));
466.  		}
467.  		if (!mtmp->mcansee) {
468.  		    mtmp->mcansee = 1;
469.  		    mtmp->mblinded = 0;
470.  		    if (vismon) pline(mcsa, Monnam(mtmp));
471.  		} else if (mtmp->mconf || mtmp->mstun) {
472.  		    mtmp->mconf = mtmp->mstun = 0;
473.  		    if (vismon)
474.  			pline("%s seems steadier now.", Monnam(mtmp));
475.  		} else impossible("No need for unicorn horn?");
476.  		return 2;
477.  	case MUSE_BUGLE:
478.  		if (vismon)
479.  			pline("%s plays %s!", Monnam(mtmp), doname(otmp));
480.  		else if (flags.soundok)
481.  			You_hear("a bugle playing reveille!");
482.  		awaken_soldiers();
483.  		return 2;
484.  	case MUSE_WAN_TELEPORTATION_SELF:
485.  		if ((mtmp->isshk && inhishop(mtmp))
486.  		       || mtmp->isgd || mtmp->ispriest) return 2;
487.  		m_flee(mtmp);
488.  		mzapmsg(mtmp, otmp, TRUE);
489.  		otmp->spe--;
490.  		how = WAN_TELEPORTATION;
491.  mon_tele:
492.  		if (tele_restrict(mtmp)) {	/* mysterious force... */
493.  		    if (vismon && how)		/* mentions 'teleport' */
494.  			makeknown(how);
495.  		    return 2;
496.  		}
497.  		if ((
498.  #if 0
499.  			mon_has_amulet(mtmp) ||
500.  #endif
501.  			On_W_tower_level(&u.uz)) && !rn2(3)) {
502.  		    if (vismon)
503.  			pline("%s seems disoriented for a moment.",
504.  				Monnam(mtmp));
505.  		    return 2;
506.  		}
507.  		if (oseen && how) makeknown(how);
508.  		rloc(mtmp);
509.  		return 2;
510.  	case MUSE_WAN_TELEPORTATION:
511.  		zap_oseen = oseen;
512.  		mzapmsg(mtmp, otmp, FALSE);
513.  		otmp->spe--;
514.  		m_using = TRUE;
515.  		mbhit(mtmp,rn1(8,6),mbhitm,bhito,otmp);
516.  		m_using = FALSE;
517.  		return 2;
518.  	case MUSE_SCR_TELEPORTATION:
519.  	    {
520.  		int obj_is_cursed = otmp->cursed;
521.  
522.  		if (mtmp->isshk || mtmp->isgd || mtmp->ispriest) return 2;
523.  		m_flee(mtmp);
524.  		mreadmsg(mtmp, otmp);
525.  		m_useup(mtmp, otmp);	/* otmp might be free'ed */
526.  		how = SCR_TELEPORTATION;
527.  		if (obj_is_cursed || mtmp->mconf) {
528.  			int nlev;
529.  			d_level flev;
530.  
531.  			if (mon_has_amulet(mtmp) || In_endgame(&u.uz)) {
532.  			    if (vismon)
533.  				pline("%s seems very disoriented for a moment.",
534.  					Monnam(mtmp));
535.  			    return 2;
536.  			}
537.  			nlev = random_teleport_level();
538.  			if (nlev == depth(&u.uz)) {
539.  			    if (vismon)
540.  				pline("%s shudders for a moment.",
541.  								Monnam(mtmp));
542.  			    return 2;
543.  			}
544.  			get_level(&flev, nlev);
545.  			migrate_to_level(mtmp, ledger_no(&flev), MIGR_RANDOM,
546.  				(coord *)0);
547.  			if (oseen) makeknown(SCR_TELEPORTATION);
548.  		} else goto mon_tele;
549.  		return 2;
550.  	    }
551.  	case MUSE_WAN_DIGGING:
552.  	    {	struct trap *ttmp;
553.  
554.  		m_flee(mtmp);
555.  		mzapmsg(mtmp, otmp, FALSE);
556.  		otmp->spe--;
557.  		if (oseen) makeknown(WAN_DIGGING);
558.  		if (IS_FURNITURE(levl[mtmp->mx][mtmp->my].typ) ||
559.  		    IS_DRAWBRIDGE(levl[mtmp->mx][mtmp->my].typ) ||
560.  		    (is_drawbridge_wall(mtmp->mx, mtmp->my) >= 0) ||
561.  		    (sstairs.sx && sstairs.sx == mtmp->mx &&
562.  				   sstairs.sy == mtmp->my)) {
563.  			pline_The("digging ray is ineffective.");
564.  			return 2;
565.  		}
566.  		if (!Can_dig_down(&u.uz)) {
567.  		    if(canseemon(mtmp))
568.  			pline_The("floor here is too hard to dig in.");
569.  		    return 2;
570.  		}
571.  		ttmp = maketrap(mtmp->mx, mtmp->my, HOLE);
572.  		if (!ttmp) return 2;
573.  		seetrap(ttmp);
574.  		if (vis) {
575.  		    pline("%s has made a hole in the floor.", Monnam(mtmp));
576.  		    pline("%s %s through...", Monnam(mtmp),
577.  			  is_flyer(mtmp->data) ? "dives" : "falls");
578.  		} else if (flags.soundok)
579.  			You_hear("%s crash through the floor.", something);
580.  		/* we made sure that there is a level for mtmp to go to */
581.  		migrate_to_level(mtmp, ledger_no(&u.uz) + 1,
582.  				 MIGR_RANDOM, (coord *)0);
583.  		return 2;
584.  	    }
585.  	case MUSE_WAN_CREATE_MONSTER:
586.  	    {	coord cc;
587.  		    /* pm: 0 => random, eel => aquatic, croc => amphibious */
588.  		struct permonst *pm = !is_pool(mtmp->mx, mtmp->my) ? 0 :
589.  			     &mons[u.uinwater ? PM_GIANT_EEL : PM_CROCODILE];
590.  		struct monst *mon;
591.  
592.  		if (!enexto(&cc, mtmp->mx, mtmp->my, pm)) return 0;
593.  		mzapmsg(mtmp, otmp, FALSE);
594.  		otmp->spe--;
595.  		mon = makemon((struct permonst *)0, cc.x, cc.y);
596.  		if (mon && canspotmon(mon) && oseen)
597.  		    makeknown(WAN_CREATE_MONSTER);
598.  		return 2;
599.  	    }
600.  	case MUSE_SCR_CREATE_MONSTER:
601.  	    {	coord cc;
602.  		struct permonst *pm = 0, *fish = 0;
603.  		int cnt = 1;
604.  		struct monst *mon;
605.  		boolean known = FALSE;
606.  
607.  		if (!rn2(73)) cnt += rnd(4);
608.  		if (mtmp->mconf || otmp->cursed) cnt += 12;
609.  		if (mtmp->mconf) pm = fish = &mons[PM_ACID_BLOB];
610.  		else if (is_pool(mtmp->mx, mtmp->my))
611.  		    fish = &mons[u.uinwater ? PM_GIANT_EEL : PM_CROCODILE];
612.  		mreadmsg(mtmp, otmp);
613.  		while(cnt--) {
614.  		    /* `fish' potentially gives bias towards water locations;
615.  		       `pm' is what to actually create (0 => random) */
616.  		    if (!enexto(&cc, mtmp->mx, mtmp->my, fish)) break;
617.  		    mon = makemon(pm, cc.x, cc.y);
618.  		    if (mon && canspotmon(mon)) known = TRUE;
619.  		}
620.  		/* The only case where we don't use oseen.  For wands, you
621.  		 * have to be able to see the monster zap the wand to know
622.  		 * what type it is.  For teleport scrolls, you have to see
623.  		 * the monster to know it teleported.
624.  		 */
625.  		if (known)
626.  		    makeknown(SCR_CREATE_MONSTER);
627.  		else if (!objects[SCR_CREATE_MONSTER].oc_name_known
628.  			&& !objects[SCR_CREATE_MONSTER].oc_uname)
629.  		    docall(otmp);
630.  		m_useup(mtmp, otmp);
631.  		return 2;
632.  	    }
633.  	case MUSE_TRAPDOOR:
634.  		/* trapdoors on "bottom" levels of dungeons are rock-drop
635.  		 * trapdoors, not holes in the floor.  We check here for
636.  		 * safety.
637.  		 */
638.  		if (Is_botlevel(&u.uz)) return 0;
639.  		m_flee(mtmp);
640.  		if (vis) {
641.  			struct trap *t;
642.  			t = t_at(trapx,trapy);
643.  			pline("%s %s into a %s!", Monnam(mtmp),
644.  			makeplural(locomotion(mtmp->data, "jump")),
645.  			t->ttyp == TRAPDOOR ? "trapdoor" : "hole");
646.  			seetrap(t_at(trapx,trapy));
647.  		}
648.  
649.  		/*  don't use rloc_to() because worm tails must "move" */
650.  		remove_monster(mtmp->mx, mtmp->my);
651.  		newsym(mtmp->mx, mtmp->my);	/* update old location */
652.  		place_monster(mtmp, trapx, trapy);
653.  		if (mtmp->wormno) worm_move(mtmp);
654.  		newsym(trapx, trapy);
655.  
656.  		migrate_to_level(mtmp, ledger_no(&u.uz) + 1,
657.  				 MIGR_RANDOM, (coord *)0);
658.  		return 2;
659.  	case MUSE_UPSTAIRS:
660.  		/* Monsters without amulets escape the dungeon and are
661.  		 * gone for good when they leave up the up stairs.
662.  		 * Monsters with amulets would reach the endlevel,
663.  		 * which we cannot allow since that would leave the
664.  		 * player stranded.
665.  		 */
666.  		if (ledger_no(&u.uz) == 1) {
667.  			if (mon_has_special(mtmp))
668.  				return 0;
669.  			if (vismon)
670.  			    pline("%s escapes the dungeon!", Monnam(mtmp));
671.  			mongone(mtmp);
672.  			return 2;
673.  		}
674.  		m_flee(mtmp);
675.  		if (Inhell && mon_has_amulet(mtmp) && !rn2(4) &&
676.  			(dunlev(&u.uz) < dunlevs_in_dungeon(&u.uz) - 3)) {
677.  		    if (vismon) pline(
678.       "As %s climbs the stairs, a mysterious force momentarily surrounds %s...",
679.  				     mon_nam(mtmp), him[pronoun_gender(mtmp)]);
680.  		    /* simpler than for the player; this will usually be
681.  		       the Wizard and he'll immediately go right to the
682.  		       upstairs, so there's not much point in having any
683.  		       chance for a random position on the current level */
684.  		    migrate_to_level(mtmp, ledger_no(&u.uz) + 1,
685.  				     MIGR_RANDOM, (coord *)0);
686.  		} else {
687.  		    if (vismon) pline("%s escapes upstairs!", Monnam(mtmp));
688.  		    migrate_to_level(mtmp, ledger_no(&u.uz) - 1,
689.  				     MIGR_STAIRS_DOWN, (coord *)0);
690.  		}
691.  		return 2;
692.  	case MUSE_DOWNSTAIRS:
693.  		m_flee(mtmp);
694.  		if (vismon) pline("%s escapes downstairs!", Monnam(mtmp));
695.  		migrate_to_level(mtmp, ledger_no(&u.uz) + 1,
696.  				 MIGR_STAIRS_UP, (coord *)0);
697.  		return 2;
698.  	case MUSE_UP_LADDER:
699.  		m_flee(mtmp);
700.  		if (vismon) pline("%s escapes up the ladder!", Monnam(mtmp));
701.  		migrate_to_level(mtmp, ledger_no(&u.uz) - 1,
702.  				 MIGR_LADDER_DOWN, (coord *)0);
703.  		return 2;
704.  	case MUSE_DN_LADDER:
705.  		m_flee(mtmp);
706.  		if (vismon) pline("%s escapes down the ladder!", Monnam(mtmp));
707.  		migrate_to_level(mtmp, ledger_no(&u.uz) + 1,
708.  				 MIGR_LADDER_UP, (coord *)0);
709.  		return 2;
710.  	case MUSE_SSTAIRS:
711.  		m_flee(mtmp);
712.  		/* the stairs leading up from the 1st level are */
713.  		/* regular stairs, not sstairs.			*/
714.  		if (sstairs.up) {
715.  			if (vismon)
716.  			    pline("%s escapes upstairs!", Monnam(mtmp));
717.  			if(Inhell) {
718.  			    migrate_to_level(mtmp, ledger_no(&sstairs.tolev),
719.  					     MIGR_RANDOM, (coord *)0);
720.  			    return 2;
721.  			}
722.  		} else	if (vismon)
723.  		    pline("%s escapes downstairs!", Monnam(mtmp));
724.  		migrate_to_level(mtmp, ledger_no(&sstairs.tolev),
725.  				 MIGR_SSTAIRS, (coord *)0);
726.  		return 2;
727.  	case MUSE_TELEPORT_TRAP:
728.  		m_flee(mtmp);
729.  		if (vis) {
730.  			pline("%s %s onto a teleport trap!", Monnam(mtmp),
731.  				makeplural(locomotion(mtmp->data, "jump")));
732.  			seetrap(t_at(trapx,trapy));
733.  		}
734.  		/*  don't use rloc_to() because worm tails must "move" */
735.  		remove_monster(mtmp->mx, mtmp->my);
736.  		newsym(mtmp->mx, mtmp->my);	/* update old location */
737.  		place_monster(mtmp, trapx, trapy);
738.  		if (mtmp->wormno) worm_move(mtmp);
739.  		newsym(trapx, trapy);
740.  
741.  		goto mon_tele;
742.  	case MUSE_POT_HEALING:
743.  		mquaffmsg(mtmp, otmp);
744.  		i = d(6 + 2 * bcsign(otmp), 4);
745.  		mtmp->mhp += i;
746.  		if (mtmp->mhp > mtmp->mhpmax) mtmp->mhp = ++mtmp->mhpmax;
747.  		if (!otmp->cursed && !mtmp->mcansee) {
748.  			mtmp->mcansee = 1;
749.  			mtmp->mblinded = 0;
750.  			if (vismon) pline(mcsa, Monnam(mtmp));
751.  		}	
752.  		if (vismon) pline("%s looks better.", Monnam(mtmp));
753.  		if (oseen) makeknown(POT_HEALING);
754.  		m_useup(mtmp, otmp);
755.  		return 2;
756.  	case MUSE_POT_EXTRA_HEALING:
757.  		mquaffmsg(mtmp, otmp);
758.  		i = d(6 + 2 * bcsign(otmp), 8);
759.  		mtmp->mhp += i;
760.  		if (mtmp->mhp > mtmp->mhpmax)
761.  			mtmp->mhp = (mtmp->mhpmax += (otmp->blessed ? 5 : 2));
762.  		if (!mtmp->mcansee) {
763.  			mtmp->mcansee = 1;
764.  			mtmp->mblinded = 0;
765.  			if (vismon) pline(mcsa, Monnam(mtmp));
766.  		}
767.  		if (vismon) pline("%s looks much better.", Monnam(mtmp));
768.  		if (oseen) makeknown(POT_EXTRA_HEALING);
769.  		m_useup(mtmp, otmp);
770.  		return 2;
771.  	case 0: return 0; /* i.e. an exploded wand */
772.  	default: impossible("%s wanted to perform action %d?", Monnam(mtmp),
773.  			m.has_defense);
774.  		break;
775.  	}
776.  	return 0;
777.  #undef m_flee
778.  }
779.  
780.  int
781.  rnd_defensive_item(mtmp)
782.  struct monst *mtmp;
783.  {
784.  	struct permonst *pm = mtmp->data;
785.  	int difficulty = monstr[(monsndx(pm))];
786.  
787.  	if(is_animal(pm) || attacktype(pm, AT_EXPL) || mindless(mtmp->data)
788.  			|| pm->mlet == S_GHOST
789.  # ifdef KOPS
790.  			|| pm->mlet == S_KOP
791.  # endif
792.  		) return 0;
793.  	switch (rn2(8 + (difficulty > 3) + (difficulty > 6) +
794.  				(difficulty > 8))) {
795.  		case 6: case 9:
796.  			if (!rn2(3)) return WAN_TELEPORTATION;
797.  			/* else FALLTHRU */
798.  		case 0: case 1:
799.  			return SCR_TELEPORTATION;
800.  		case 8: case 10:
801.  			if (!rn2(3)) return WAN_CREATE_MONSTER;
802.  			/* else FALLTHRU */
803.  		case 2: return SCR_CREATE_MONSTER;
804.  		case 3: case 4:
805.  			return POT_HEALING;
806.  		case 5: return POT_EXTRA_HEALING;
807.  		case 7: if (is_floater(pm) || mtmp->isshk || mtmp->isgd
808.  						|| mtmp->ispriest
809.  									)
810.  				return 0;
811.  			else
812.  				return WAN_DIGGING;
813.  	}
814.  	/*NOTREACHED*/
815.  	return 0;
816.  }
817.  
818.  #define MUSE_WAN_DEATH 1
819.  #define MUSE_WAN_SLEEP 2
820.  #define MUSE_WAN_FIRE 3
821.  #define MUSE_WAN_COLD 4
822.  #define MUSE_WAN_LIGHTNING 5
823.  #define MUSE_WAN_MAGIC_MISSILE 6
824.  #define MUSE_WAN_STRIKING 7
825.  #define MUSE_SCR_FIRE 8
826.  #define MUSE_POT_PARALYSIS 9
827.  #define MUSE_POT_BLINDNESS 10
828.  #define MUSE_POT_CONFUSION 11
829.  
830.  /* Select an offensive item/action for a monster.  Returns TRUE iff one is
831.   * found.
832.   */
833.  boolean
834.  find_offensive(mtmp)
835.  struct monst *mtmp;
836.  {
837.  	register struct obj *obj;
838.  	boolean ranged_stuff = lined_up(mtmp);
839.  	boolean reflection_skip = (Reflecting && rn2(2));
840.  
841.  	m.offensive = (struct obj *)0;
842.  	m.has_offense = 0;
843.  	if (mtmp->mpeaceful || is_animal(mtmp->data) ||
844.  				mindless(mtmp->data) || nohands(mtmp->data))
845.  		return FALSE;
846.  	if (u.uswallow) return FALSE;
847.  	if (in_your_sanctuary(mtmp->mx, mtmp->my)) return FALSE;
848.  	if (dmgtype(mtmp->data, AD_HEAL) && !uwep
849.  #ifdef TOURIST
850.  	    && !uarmu
851.  #endif
852.  	    && !uarm && !uarmh && !uarms && !uarmg && !uarmc && !uarmf)
853.  		return FALSE;
854.  
855.  	if (!ranged_stuff) return FALSE;
856.  #define nomore(x) if(m.has_offense==x) continue;
857.  	for(obj=mtmp->minvent; obj; obj=obj->nobj) {
858.  		/* nomore(MUSE_WAN_DEATH); */
859.  		if (!reflection_skip) {
860.  		    if(obj->otyp == WAN_DEATH && obj->spe > 0) {
861.  			m.offensive = obj;
862.  			m.has_offense = MUSE_WAN_DEATH;
863.  		    }
864.  		    nomore(MUSE_WAN_SLEEP);
865.  		    if(obj->otyp == WAN_SLEEP && obj->spe > 0 && multi >= 0) {
866.  			m.offensive = obj;
867.  			m.has_offense = MUSE_WAN_SLEEP;
868.  		    }
869.  		    nomore(MUSE_WAN_FIRE);
870.  		    if(obj->otyp == WAN_FIRE && obj->spe > 0) {
871.  			m.offensive = obj;
872.  			m.has_offense = MUSE_WAN_FIRE;
873.  		    }
874.  		    nomore(MUSE_WAN_COLD);
875.  		    if(obj->otyp == WAN_COLD && obj->spe > 0) {
876.  			m.offensive = obj;
877.  			m.has_offense = MUSE_WAN_COLD;
878.  		    }
879.  		    nomore(MUSE_WAN_LIGHTNING);
880.  		    if(obj->otyp == WAN_LIGHTNING && obj->spe > 0) {
881.  			m.offensive = obj;
882.  			m.has_offense = MUSE_WAN_LIGHTNING;
883.  		    }
884.  		    nomore(MUSE_WAN_MAGIC_MISSILE);
885.  		    if(obj->otyp == WAN_MAGIC_MISSILE && obj->spe > 0) {
886.  			m.offensive = obj;
887.  			m.has_offense = MUSE_WAN_MAGIC_MISSILE;
888.  		    }
889.  		}
890.  		nomore(MUSE_WAN_STRIKING);
891.  		if(obj->otyp == WAN_STRIKING && obj->spe > 0) {
892.  			m.offensive = obj;
893.  			m.has_offense = MUSE_WAN_STRIKING;
894.  		}
895.  		nomore(MUSE_POT_PARALYSIS);
896.  		if(obj->otyp == POT_PARALYSIS && multi >= 0) {
897.  			m.offensive = obj;
898.  			m.has_offense = MUSE_POT_PARALYSIS;
899.  		}
900.  		nomore(MUSE_POT_BLINDNESS);
901.  		if(obj->otyp == POT_BLINDNESS) {
902.  			m.offensive = obj;
903.  			m.has_offense = MUSE_POT_BLINDNESS;
904.  		}
905.  		nomore(MUSE_POT_CONFUSION);
906.  		if(obj->otyp == POT_CONFUSION) {
907.  			m.offensive = obj;
908.  			m.has_offense = MUSE_POT_CONFUSION;
909.  		}
910.  #if 0
911.  		nomore(MUSE_SCR_FIRE);
912.  		/* even more restrictive than ranged_stuff */
913.  		if (obj->otyp == SCR_FIRE && resists_fire(mtmp)
914.  		   && distu(mtmp->mx,mtmp->my)==1
915.  		   && mtmp->mcansee && haseyes(mtmp->data)) {
916.  			m.offensive = obj;
917.  			m.has_offense = MUSE_SCR_FIRE;
918.  		}
919.  #endif
920.  	}
921.  	return((boolean)(!!m.has_offense));
922.  #undef nomore
923.  }
924.  
925.  STATIC_PTR
926.  int
927.  mbhitm(mtmp, otmp)
928.  register struct monst *mtmp;
929.  register struct obj *otmp;
930.  {
931.  	int tmp;
932.  
933.  	if (mtmp != &youmonst) {
934.  		mtmp->msleep = 0;
935.  		if (mtmp->m_ap_type) seemimic(mtmp);
936.  	}
937.  	switch(otmp->otyp) {
938.  	case WAN_STRIKING:
939.  		if (mtmp == &youmonst) {
940.  			if (zap_oseen) makeknown(WAN_STRIKING);
941.  			if (rnd(20) < 10 + u.uac) {
942.  				pline_The("wand hits you!");
943.  				tmp = d(2,12);
944.  				if(Half_spell_damage) tmp = (tmp+1) / 2;
945.  				losehp(tmp, "wand", KILLED_BY_AN);
946.  			} else pline_The("wand misses you.");
947.  			stop_occupation();
948.  			nomul(0);
949.  		} else if (rnd(20) < 10+find_mac(mtmp)) {
950.  			tmp = d(2,12);
951.  			if(Half_spell_damage) tmp = (tmp+1) / 2;
952.  			hit("wand", mtmp, exclam(tmp));
953.  			(void) resist(mtmp, otmp->oclass, tmp, TELL);
954.  			if (cansee(mtmp->mx, mtmp->my) && zap_oseen)
955.  				makeknown(WAN_STRIKING);
956.  		} else {
957.  			miss("wand", mtmp);
958.  			if (cansee(mtmp->mx, mtmp->my) && zap_oseen)
959.  				makeknown(WAN_STRIKING);
960.  		}
961.  		break;
962.  	case WAN_TELEPORTATION:
963.  		if (mtmp == &youmonst) {
964.  			if (zap_oseen) makeknown(WAN_TELEPORTATION);
965.  			tele();
966.  		} else {
967.  			/* for consistency with zap.c, don't identify */
968.  			if (mtmp->ispriest &&
969.  				*in_rooms(mtmp->mx, mtmp->my, TEMPLE)) {
970.  			    if (cansee(mtmp->mx, mtmp->my))
971.  				pline("%s resists the magic!", Monnam(mtmp));
972.  			    mtmp->msleep = 0;
973.  			    if(mtmp->m_ap_type) seemimic(mtmp);
974.  			} else
975.  			    rloc(mtmp);
976.  		}
977.  		break;
978.  	case WAN_CANCELLATION:
979.  	case SPE_CANCELLATION:
980.  		cancel_monst(mtmp, otmp, FALSE, TRUE, FALSE);
981.  		break;
982.  	}
983.  	return 0;
984.  }
985.  
986.  /* A modified bhit() for monsters.  Based on bhit() in zap.c.  Unlike
987.   * buzz(), bhit() doesn't take into account the possibility of a monster
988.   * zapping you, so we need a special function for it.  (Unless someone wants
989.   * to merge the two functions...)
990.   */
991.  static void
992.  mbhit(mon,range,fhitm,fhito,obj)
993.  struct monst *mon;			/* monster shooting the wand */
994.  register int range;			/* direction and range */
995.  int FDECL((*fhitm),(MONST_P,OBJ_P));
996.  int FDECL((*fhito),(OBJ_P,OBJ_P));	/* fns called when mon/obj hit */
997.  struct obj *obj;			/* 2nd arg to fhitm/fhito */
998.  {
999.  	register struct monst *mtmp;
1000. 	register struct obj *otmp;
1001. 	register uchar typ;
1002. 	int ddx, ddy;
1003. 
1004. 	bhitpos.x = mon->mx;
1005. 	bhitpos.y = mon->my;
1006. 	ddx = sgn(mon->mux - mon->mx);
1007. 	ddy = sgn(mon->muy - mon->my);
1008. 
1009. 	while(range-- > 0) {
1010. 		int x,y;
1011. 
1012. 		bhitpos.x += ddx;
1013. 		bhitpos.y += ddy;
1014. 		x = bhitpos.x; y = bhitpos.y;
1015. 
1016. 		if (!isok(x,y)) {
1017. 		    bhitpos.x -= ddx;
1018. 		    bhitpos.y -= ddy;
1019. 		    break;
1020. 		}
1021. 		if (find_drawbridge(&x,&y))
1022. 		    switch (obj->otyp) {
1023. 			case WAN_STRIKING:
1024. 			    destroy_drawbridge(x,y);
1025. 		    }
1026. 		if(bhitpos.x==u.ux && bhitpos.y==u.uy) {
1027. 			(*fhitm)(&youmonst, obj);
1028. 			range -= 3;
1029. 		} else if(MON_AT(bhitpos.x, bhitpos.y)){
1030. 			mtmp = m_at(bhitpos.x,bhitpos.y);
1031. 			(*fhitm)(mtmp, obj);
1032. 			range -= 3;
1033. 		}
1034. 		/* modified by GAN to hit all objects */
1035. 		if(fhito){
1036. 		    int hitanything = 0;
1037. 		    register struct obj *next_obj;
1038. 
1039. 		    for(otmp = level.objects[bhitpos.x][bhitpos.y];
1040. 							otmp; otmp = next_obj) {
1041. 			/* Fix for polymorph bug, Tim Wright */
1042. 			next_obj = otmp->nexthere;
1043. 			hitanything += (*fhito)(otmp, obj);
1044. 		    }
1045. 		    if(hitanything)	range--;
1046. 		}
1047. 		typ = levl[bhitpos.x][bhitpos.y].typ;
1048. 		if(IS_DOOR(typ) || typ == SDOOR) {
1049. 		    switch (obj->otyp) {
1050. 			/* note: monsters don't use opening or locking magic
1051. 			   at present, but keep these as placeholders */
1052. 			case WAN_OPENING:
1053. 			case WAN_LOCKING:
1054. 			case WAN_STRIKING:
1055. 			    if (doorlock(obj, bhitpos.x, bhitpos.y)) {
1056. 				makeknown(obj->otyp);
1057. 				/* if a shop door gets broken, add it to
1058. 				   the shk's fix list (no cost to player) */
1059. 				if (levl[bhitpos.x][bhitpos.y].doormask ==
1060. 					D_BROKEN &&
1061. 				    *in_rooms(bhitpos.x, bhitpos.y, SHOPBASE))
1062. 				    add_damage(bhitpos.x, bhitpos.y, 0L);
1063. 			    }
1064. 			    break;
1065. 		    }
1066. 		}
1067. 		if(!ZAP_POS(typ) || (IS_DOOR(typ) &&
1068. 		   (levl[bhitpos.x][bhitpos.y].doormask & (D_LOCKED | D_CLOSED)))
1069. 		  ) {
1070. 			bhitpos.x -= ddx;
1071. 			bhitpos.y -= ddy;
1072. 			break;
1073. 		}
1074. 	}
1075. }
1076. 
1077. /* Perform an offensive action for a monster.  Must be called immediately
1078.  * after find_offensive().  Return values are same as use_defensive().
1079.  */
1080. int
1081. use_offensive(mtmp)
1082. struct monst *mtmp;
1083. {
1084. 	int i;
1085. 	struct obj *otmp = m.offensive;
1086. 	boolean oseen;
1087. 
1088. 	/* offensive potions are not drunk, they're thrown */
1089. 	if (otmp->oclass != POTION_CLASS && (i = precheck(mtmp, otmp)) != 0)
1090. 		return i;
1091. 	oseen = otmp && canseemon(mtmp);
1092. 
1093. 	switch(m.has_offense) {
1094. 	case MUSE_WAN_DEATH:
1095. 	case MUSE_WAN_SLEEP:
1096. 	case MUSE_WAN_FIRE:
1097. 	case MUSE_WAN_COLD:
1098. 	case MUSE_WAN_LIGHTNING:
1099. 	case MUSE_WAN_MAGIC_MISSILE:
1100. 		mzapmsg(mtmp, otmp, FALSE);
1101. 		otmp->spe--;
1102. 		if (oseen) makeknown(otmp->otyp);
1103. 		m_using = TRUE;
1104. 		buzz((int)(-30 - (otmp->otyp - WAN_MAGIC_MISSILE)),
1105. 			(otmp->otyp == WAN_MAGIC_MISSILE) ? 2 : 6,
1106. 			mtmp->mx, mtmp->my,
1107. 			sgn(mtmp->mux-mtmp->mx), sgn(mtmp->muy-mtmp->my));
1108. 		m_using = FALSE;
1109. 		return (mtmp->mhp <= 0) ? 1 : 2;
1110. 	case MUSE_WAN_TELEPORTATION:
1111. 	case MUSE_WAN_STRIKING:
1112. 		zap_oseen = oseen;
1113. 		mzapmsg(mtmp, otmp, FALSE);
1114. 		otmp->spe--;
1115. 		m_using = TRUE;
1116. 		mbhit(mtmp,rn1(8,6),mbhitm,bhito,otmp);
1117. 		m_using = FALSE;
1118. 		return 2;
1119. #if 0
1120. 	case MUSE_SCR_FIRE:
1121. 	      {
1122. 		boolean vis = cansee(mtmp->mx, mtmp->my);
1123. 
1124. 		mreadmsg(mtmp, otmp);
1125. 		if (mtmp->mconf) {
1126. 			if (vis)
1127. 			    pline("Oh, what a pretty fire!");
1128. 		} else {
1129. 			struct monst *mtmp2;
1130. 			int num;
1131. 
1132. 			if (vis)
1133. 			    pline_The("scroll erupts in a tower of flame!");
1134. 			shieldeff(mtmp->mx, mtmp->my);
1135. 			pline("%s is uninjured.", Monnam(mtmp));
1136. 			(void) destroy_mitem(mtmp, SCROLL_CLASS, AD_FIRE);
1137. 			(void) destroy_mitem(mtmp, SPBOOK_CLASS, AD_FIRE);
1138. 			(void) destroy_mitem(mtmp, POTION_CLASS, AD_FIRE);
1139. 			num = (2*(rn1(3, 3) + 2 * bcsign(otmp)) + 1)/3;
1140. 			if (Fire_resistance)
1141. 			    You("are not affected.");
1142. 			if (Half_spell_damage) num = (num+1) / 2;
1143. 			else losehp(num, "scroll of fire", KILLED_BY_AN);
1144. 			for(mtmp2 = fmon; mtmp2; mtmp2 = mtmp2->nmon) {
1145. 			   if(mtmp == mtmp2) continue;
1146. 			   if(dist2(mtmp2->mx,mtmp2->my,mtmp->mx,mtmp->my) < 3){
1147. 				if (resists_fire(mtmp2)) continue;
1148. 				mtmp2->mhp -= num;
1149. 				if (resists_cold(mtmp2))
1150. 				    mtmp2->mhp -= 3*num;
1151. 				if(mtmp2->mhp < 1) {
1152. 				    mondied(mtmp2);
1153. 				    break;
1154. 				}
1155. 			    }
1156. 			}
1157. 		}
1158. 		return 2;
1159. 	      }
1160. #endif	/* 0 */
1161. 	case MUSE_POT_PARALYSIS:
1162. 	case MUSE_POT_BLINDNESS:
1163. 	case MUSE_POT_CONFUSION:
1164. 		/* Note: this setting of dknown doesn't suffice.  A monster
1165. 		 * which is out of sight might throw and it hits something _in_
1166. 		 * sight, a problem not existing with wands because wand rays
1167. 		 * are not objects.  Also set dknown in mthrowu.c.
1168. 		 */
1169. 		if (cansee(mtmp->mx, mtmp->my)) {
1170. 			otmp->dknown = 1;
1171. 			pline("%s hurls %s!", Monnam(mtmp),
1172. 						singular(otmp, doname));
1173. 		}
1174. 		m_throw(mtmp, mtmp->mx, mtmp->my, sgn(mtmp->mux-mtmp->mx),
1175. 			sgn(mtmp->muy-mtmp->my),
1176. 			distmin(mtmp->mx,mtmp->my,mtmp->mux,mtmp->muy), otmp);
1177. 		return 2;
1178. 	case 0: return 0; /* i.e. an exploded wand */
1179. 	default: impossible("%s wanted to perform action %d?", Monnam(mtmp),
1180. 			m.has_offense);
1181. 		break;
1182. 	}
1183. 	return 0;
1184. }
1185. 
1186. int
1187. rnd_offensive_item(mtmp)
1188. struct monst *mtmp;
1189. {
1190. 	struct permonst *pm = mtmp->data;
1191. 	int difficulty = monstr[(monsndx(pm))];
1192. 
1193. 	if(is_animal(pm) || attacktype(pm, AT_EXPL) || mindless(mtmp->data)
1194. 			|| pm->mlet == S_GHOST
1195. # ifdef KOPS
1196. 			|| pm->mlet == S_KOP
1197. # endif
1198. 		) return 0;
1199. 	if (difficulty > 7 && !rn2(35)) return WAN_DEATH;
1200. 	switch (rn2(7 - (difficulty < 4) + 4 * (difficulty > 6))) {
1201. 		case 0: case 1:
1202. 			return WAN_STRIKING;
1203. 		case 2: return POT_CONFUSION;
1204. 		case 3: return POT_BLINDNESS;
1205. 		case 4: return POT_PARALYSIS;
1206. 		case 5: case 6:
1207. 			return WAN_MAGIC_MISSILE;
1208. 		case 7: return WAN_SLEEP;
1209. 		case 8: return WAN_FIRE;
1210. 		case 9: return WAN_COLD;
1211. 		case 10: return WAN_LIGHTNING;
1212. 	}
1213. 	/*NOTREACHED*/
1214. 	return 0;
1215. }
1216. 
1217. #define MUSE_POT_GAIN_LEVEL 1
1218. #define MUSE_WAN_MAKE_INVISIBLE 2
1219. #define MUSE_POT_INVISIBILITY 3
1220. #define MUSE_POLY_TRAP 4
1221. #define MUSE_WAN_POLYMORPH 5
1222. #define MUSE_POT_SPEED 6
1223. #define MUSE_WAN_SPEED_MONSTER 7
1224. #define MUSE_BULLWHIP 8
1225. 
1226. boolean
1227. find_misc(mtmp)
1228. struct monst *mtmp;
1229. {
1230. 	register struct obj *obj;
1231. 	struct permonst *mdat = mtmp->data;
1232. 	int x = mtmp->mx, y = mtmp->my;
1233. 	struct trap *t;
1234. 	int xx, yy;
1235. 	boolean immobile = (mdat->mmove == 0);
1236. 	boolean stuck = (mtmp == u.ustuck);
1237. 
1238. 	m.misc = (struct obj *)0;
1239. 	m.has_misc = 0;
1240. 	if (is_animal(mdat) || mindless(mdat))
1241. 		return 0;
1242. 	if (u.uswallow && stuck) return FALSE;
1243. 
1244. 	/* We arbitrarily limit to times when a player is nearby for the
1245. 	 * same reason as Junior Pac-Man doesn't have energizers eaten until
1246. 	 * you can see them...
1247. 	 */
1248. 	if(dist2(x, y, mtmp->mux, mtmp->muy) > 36)
1249. 		return FALSE;
1250. 
1251. 	if (!stuck && !immobile && !mtmp->cham && monstr[monsndx(mdat)] < 6) {
1252. 	  boolean ignore_boulders = (verysmall(mdat) ||
1253. 				     throws_rocks(mdat) ||
1254. 				     passes_walls(mdat));
1255. 	  for(xx = x-1; xx <= x+1; xx++)
1256. 	    for(yy = y-1; yy <= y+1; yy++)
1257. 		if (isok(xx,yy) && (xx != u.ux || yy != u.uy))
1258. 		    if (mdat != &mons[PM_GRID_BUG] || xx == x || yy == y)
1259. 			if (/* (xx==x && yy==y) || */ !level.monsters[xx][yy])
1260. 			    if ((t = t_at(xx, yy)) != 0 &&
1261. 			      (ignore_boulders || !sobj_at(BOULDER, xx, yy))
1262. 			      && !onscary(xx, yy, mtmp)) {
1263. 				if (t->ttyp == POLY_TRAP) {
1264. 				    trapx = xx;
1265. 				    trapy = yy;
1266. 				    m.has_misc = MUSE_POLY_TRAP;
1267. 				    return TRUE;
1268. 				}
1269. 			    }
1270. 	}
1271. 	if (nohands(mdat))
1272. 		return 0;
1273. 
1274. #define nomore(x) if(m.has_misc==x) continue;
1275. 	for(obj=mtmp->minvent; obj; obj=obj->nobj) {
1276. 		/* Monsters shouldn't recognize cursed items; this kludge is */
1277. 		/* necessary to prevent serious problems though... */
1278. 		if(obj->otyp == POT_GAIN_LEVEL && (!obj->cursed ||
1279. 			    (!mtmp->isgd && !mtmp->isshk && !mtmp->ispriest))) {
1280. 			m.misc = obj;
1281. 			m.has_misc = MUSE_POT_GAIN_LEVEL;
1282. 		}
1283. 		nomore(MUSE_BULLWHIP);
1284. 		if(obj->otyp == BULLWHIP && (MON_WEP(mtmp) == obj) &&
1285. 		   distu(mtmp->mx,mtmp->my)==1 && uwep) {
1286. 			m.misc = obj;
1287. 			m.has_misc = MUSE_BULLWHIP;
1288. 		}
1289. 		/* Note: peaceful/tame monsters won't make themselves
1290. 		 * invisible unless you can see them.  Not really right, but...
1291. 		 */
1292. 		nomore(MUSE_WAN_MAKE_INVISIBLE);
1293. 		if(obj->otyp == WAN_MAKE_INVISIBLE && obj->spe > 0 &&
1294. 		    !mtmp->minvis && !mtmp->invis_blkd &&
1295. 		    (!mtmp->mpeaceful || See_invisible) &&
1296. 		    (mdat != &mons[PM_MEDUSA] || mtmp->mcan)) {
1297. 			m.misc = obj;
1298. 			m.has_misc = MUSE_WAN_MAKE_INVISIBLE;
1299. 		}
1300. 		nomore(MUSE_POT_INVISIBILITY);
1301. 		if(obj->otyp == POT_INVISIBILITY &&
1302. 		    !mtmp->minvis && !mtmp->invis_blkd &&
1303. 		    (!mtmp->mpeaceful || See_invisible)) {
1304. 			m.misc = obj;
1305. 			m.has_misc = MUSE_POT_INVISIBILITY;
1306. 		}
1307. 		nomore(MUSE_WAN_SPEED_MONSTER);
1308. 		if(obj->otyp == WAN_SPEED_MONSTER && obj->spe > 0
1309. 				&& mtmp->mspeed != MFAST && !mtmp->isgd) {
1310. 			m.misc = obj;
1311. 			m.has_misc = MUSE_WAN_SPEED_MONSTER;
1312. 		}
1313. 		nomore(MUSE_POT_SPEED);
1314. 		if(obj->otyp == POT_SPEED && mtmp->mspeed != MFAST
1315. 							&& !mtmp->isgd) {
1316. 			m.misc = obj;
1317. 			m.has_misc = MUSE_POT_SPEED;
1318. 		}
1319. 		nomore(MUSE_WAN_POLYMORPH);
1320. 		if(obj->otyp == WAN_POLYMORPH && obj->spe > 0 && !mtmp->cham
1321. 				&& monstr[monsndx(mdat)] < 6) {
1322. 			m.misc = obj;
1323. 			m.has_misc = MUSE_WAN_POLYMORPH;
1324. 		}
1325. 	}
1326. 	return((boolean)(!!m.has_misc));
1327. #undef nomore
1328. }
1329. 
1330. int
1331. use_misc(mtmp)
1332. struct monst *mtmp;
1333. {
1334. 	int i;
1335. 	struct obj *otmp = m.misc;
1336. 	boolean vis, vismon, oseen;
1337. 
1338. 	if ((i = precheck(mtmp, otmp)) != 0) return i;
1339. 	vis = cansee(mtmp->mx, mtmp->my);
1340. 	vismon = canseemon(mtmp);
1341. 	oseen = otmp && vismon;
1342. 
1343. 	switch(m.has_misc) {
1344. 	case MUSE_POT_GAIN_LEVEL:
1345. 		mquaffmsg(mtmp, otmp);
1346. 		if (otmp->cursed) {
1347. 		    if (Can_rise_up(mtmp->mx, mtmp->my, &u.uz)) {
1348. 			register int tolev = depth(&u.uz)-1;
1349. 			d_level tolevel;
1350. 
1351. 			get_level(&tolevel, tolev);
1352. 			/* insurance against future changes... */
1353. 			if(on_level(&tolevel, &u.uz)) goto skipmsg;
1354. 			if (vismon) {
1355. 			    pline("%s rises up, through the %s!",
1356. 				  Monnam(mtmp), ceiling(mtmp->mx, mtmp->my));
1357. 			    if(!objects[POT_GAIN_LEVEL].oc_name_known
1358. 			      && !objects[POT_GAIN_LEVEL].oc_uname)
1359. 				docall(otmp);
1360. 			}
1361. 			m_useup(mtmp, otmp);
1362. 			migrate_to_level(mtmp, ledger_no(&tolevel),
1363. 					 MIGR_RANDOM, (coord *)0);
1364. 			return 2;
1365. 		    } else {
1366. skipmsg:
1367. 			if (vismon) {
1368. 			    pline("%s looks uneasy.", Monnam(mtmp));
1369. 			    if(!objects[POT_GAIN_LEVEL].oc_name_known
1370. 			      && !objects[POT_GAIN_LEVEL].oc_uname)
1371. 				docall(otmp);
1372. 			}
1373. 			m_useup(mtmp, otmp);
1374. 			return 2;
1375. 		    }
1376. 		}
1377. 		if (vismon) pline("%s seems more experienced.", Monnam(mtmp));
1378. 		if (oseen) makeknown(POT_GAIN_LEVEL);
1379. 		m_useup(mtmp, otmp);
1380. 		if (!grow_up(mtmp,(struct monst *)0)) return 1;
1381. 			/* grew into genocided monster */
1382. 		return 2;
1383. 	case MUSE_WAN_MAKE_INVISIBLE:
1384. 		mzapmsg(mtmp, otmp, TRUE);
1385. 		otmp->spe--;
1386. 		mon_set_minvis(mtmp);
1387. 		return 2;
1388. 	case MUSE_POT_INVISIBILITY:
1389. 		mquaffmsg(mtmp, otmp);
1390. 		if (vis) {
1391. 		    if (See_invisible)
1392. 		        pline("%s body takes on a %s transparency.",
1393. 			      s_suffix(Monnam(mtmp)),
1394. 			      Hallucination ? "normal" : "strange");
1395. 		    else
1396. 		        pline("Suddenly you cannot see %s.", mon_nam(mtmp));
1397. 		}
1398. 		if (oseen) makeknown(POT_INVISIBILITY);
1399. 		mon_set_minvis(mtmp);
1400. 		if (otmp->cursed) you_aggravate(mtmp);
1401. 		m_useup(mtmp, otmp);
1402. 		return 2;
1403. 	case MUSE_WAN_SPEED_MONSTER:
1404. 		mzapmsg(mtmp, otmp, TRUE);
1405. 		otmp->spe--;
1406. 		if (mtmp->mspeed == MSLOW) mtmp->mspeed = 0;
1407. 		else mtmp->mspeed = MFAST;
1408. 		return 2;
1409. 	case MUSE_POT_SPEED:
1410. 		mquaffmsg(mtmp, otmp);
1411. 		if (vismon) pline("%s is suddenly moving much faster.",
1412. 			Monnam(mtmp));
1413. 		if (oseen) makeknown(POT_SPEED);
1414. 		if (mtmp->mspeed == MSLOW) mtmp->mspeed = 0;
1415. 		else mtmp->mspeed = MFAST;
1416. 		m_useup(mtmp, otmp);
1417. 		return 2;
1418. 	case MUSE_WAN_POLYMORPH:
1419. 		mzapmsg(mtmp, otmp, TRUE);
1420. 		otmp->spe--;
1421. 		(void) newcham(mtmp, rndmonst());
1422. 		if (oseen) makeknown(WAN_POLYMORPH);
1423. 		return 2;
1424. 	case MUSE_POLY_TRAP:
1425. 		if (vismon)
1426. 		    pline("%s deliberately goes onto a polymorph trap!",
1427. 			  Monnam(mtmp));
1428. 		if (vis) seetrap(t_at(trapx,trapy));
1429. 
1430. 		/*  don't use rloc() due to worms */
1431. 		remove_monster(mtmp->mx, mtmp->my);
1432. 		newsym(mtmp->mx, mtmp->my);
1433. 		place_monster(mtmp, trapx, trapy);
1434. 		if (mtmp->wormno) worm_move(mtmp);
1435. 		newsym(trapx, trapy);
1436. 
1437. 		(void) newcham(mtmp, (struct permonst *)0);
1438. 		return 2;
1439. 	case MUSE_BULLWHIP:
1440. 		/* attempt to disarm hero */
1441. 		if (uwep) {
1442. 			if (!rn2(5)) {
1443. 				int where_to = rn2(4);
1444. 				struct obj *obj = uwep;
1445. 				
1446. 				if (vismon)
1447. 				  pline("%s flicks a bullwhip towards your %s!",
1448. 					Monnam(mtmp),
1449. 					body_part(HAND));
1450. 				if (obj->otyp == HEAVY_IRON_BALL) {
1451. 				  pline_The("bullwhip does not wrap around %s.",
1452. 					the(xname(obj)));
1453. 					return 1;
1454. 				}
1455. 				pline_The("bullwhip wraps around %s %s!",
1456. 					the(xname(obj)),
1457. 					"you're wielding");
1458. 				if (!where_to) {
1459. 					pline_The("bullwhip slips free.");
1460. 					return 1;
1461. 				}
1462. 				freeinv(obj);
1463. 				setuwep((struct obj *)0);
1464. 				switch (where_to) {
1465. 				    case 1:	/* onto floor beneath mon */
1466. 					pline("%s yanks %s from your %s!",
1467. 						Monnam(mtmp),
1468. 						the(xname(obj)),
1469. 						body_part(HAND));
1470. 					if(obj->otyp == CRYSKNIFE)
1471. 						obj->otyp = WORM_TOOTH;
1472. 					place_object(obj, mtmp->mx, mtmp->my);
1473. 					break;
1474. 				    case 2:	/* onto floor beneath you */
1475. 					pline("%s yanks %s to the %s!",
1476. 						Monnam(mtmp),
1477. 						the(xname(obj)),
1478. 						surface(u.ux, u.uy));
1479. 					dropy(obj);
1480. 					break;
1481. 				    case 3:	/* into mon's inventory */
1482. 					pline("%s snatches %s!",
1483. 						Monnam(mtmp),
1484. 						the(xname(obj)));
1485. 					mpickobj(mtmp,obj);
1486. 					break;
1487. 				    default:
1488. 					/* shouldn't happen */
1489. 					pline("Where's your weapon!");
1490. 					place_object(obj,u.ux, u.uy);
1491. 				}
1492. 				return 1;
1493. 			}
1494. 		}
1495. 		return 0;
1496. 	case 0: return 0; /* i.e. an exploded wand */
1497. 	default: impossible("%s wanted to perform action %d?", Monnam(mtmp),
1498. 			m.has_misc);
1499. 		break;
1500. 	}
1501. 	return 0;
1502. }
1503. 
1504. static void
1505. you_aggravate(mtmp)
1506. struct monst *mtmp;
1507. {
1508. 	killer = ""; /* hack: prevent "it" in names */
1509. 	pline("For some reason, %s presence is known to you.",
1510. 		s_suffix(mon_nam(mtmp)));
1511. 	cls();
1512. #ifdef CLIPPING
1513. 	cliparound(mtmp->mx, mtmp->my);
1514. #endif
1515. 	show_glyph(mtmp->mx, mtmp->my, mon_to_glyph(mtmp));
1516. 	display_self();
1517. 	You_feel("aggravated at %s.", mon_nam(mtmp));
1518. 	display_nhwindow(WIN_MAP, TRUE);
1519. 	docrt();
1520. 	if (unconscious()) {
1521. 		multi = -1;
1522. 		nomovemsg =
1523. 		      "Aggravated, you are jolted into full consciousness.";
1524. 	}
1525. 	killer = 0;
1526. 	newsym(mtmp->mx,mtmp->my);
1527. }
1528. 
1529. int
1530. rnd_misc_item(mtmp)
1531. struct monst *mtmp;
1532. {
1533. 	struct permonst *pm = mtmp->data;
1534. 	int difficulty = monstr[(monsndx(pm))];
1535. 
1536. 	if(is_animal(pm) || attacktype(pm, AT_EXPL) || mindless(mtmp->data)
1537. 			|| pm->mlet == S_GHOST
1538. # ifdef KOPS
1539. 			|| pm->mlet == S_KOP
1540. # endif
1541. 		) return 0;
1542. 	/* Unlike other rnd_item functions, we only allow _weak_ monsters
1543. 	 * to have this item; after all, the item will be used to strengthen
1544. 	 * the monster and strong monsters won't use it at all...
1545. 	 */
1546. 	if (difficulty < 6 && !rn2(30)) return WAN_POLYMORPH;
1547. 	
1548. 	if (!rn2(40) && !nonliving(pm)) return AMULET_OF_LIFE_SAVING;
1549. 
1550. 	switch (rn2(3)) {
1551. 		case 0:
1552. 			if (mtmp->isgd) return 0;
1553. 			return rn2(6) ? POT_SPEED : WAN_SPEED_MONSTER;
1554. 		case 1:
1555. 			if (mtmp->mpeaceful && !See_invisible) return 0;
1556. 			return rn2(6) ? POT_INVISIBILITY : WAN_MAKE_INVISIBLE;
1557. 		case 2:
1558. 			return POT_GAIN_LEVEL;
1559. 	}
1560. 	/*NOTREACHED*/
1561. 	return 0;
1562. }
1563. 
1564. boolean
1565. searches_for_item(mon, obj)
1566. struct monst *mon;
1567. struct obj *obj;
1568. {
1569. 	int typ = obj->otyp;
1570. 
1571. 	if (is_animal(mon->data) || mindless(mon->data)) return FALSE;
1572. 	/* No, the ghost doesn't pick up the bones pile */
1573. 	if (mon->data == &mons[PM_GHOST]) return FALSE;
1574. 	return((boolean)((obj->oclass == WAND_CLASS && objects[typ].oc_dir == RAY)
1575. 		|| typ == WAN_STRIKING
1576. 		|| (!mon->minvis && !mon->invis_blkd &&
1577. 			(typ == WAN_MAKE_INVISIBLE || typ == POT_INVISIBILITY))
1578. 		|| (mon->mspeed != MFAST &&
1579. 			(typ == WAN_SPEED_MONSTER || typ == POT_SPEED))
1580. 		|| typ == POT_HEALING
1581. 		|| typ == POT_EXTRA_HEALING
1582. 		|| typ == POT_GAIN_LEVEL
1583. 		|| (monstr[monsndx(mon->data)] < 6 && typ == WAN_POLYMORPH)
1584. 		|| (!is_floater(mon->data) && typ == WAN_DIGGING)
1585. 		|| typ == WAN_TELEPORTATION
1586. 		|| typ == SCR_TELEPORTATION
1587. 		|| typ == WAN_CREATE_MONSTER
1588. 		|| typ == SCR_CREATE_MONSTER
1589. 		|| typ == POT_PARALYSIS
1590. 		|| typ == POT_BLINDNESS
1591. 		|| typ == POT_CONFUSION
1592. 		|| (typ == PICK_AXE && needspick(mon->data))
1593. 		|| typ == AMULET_OF_REFLECTION
1594. 		|| (typ == AMULET_OF_LIFE_SAVING && !nonliving(mon->data))
1595. 		|| ((mon->misc_worn_check & W_ARMG) && typ == CORPSE
1596. 			&& obj->corpsenm == PM_COCKATRICE)
1597. 		|| (typ == CORPSE && !resists_ston(mon) &&
1598. 			(obj->corpsenm == PM_LIZARD ||
1599. 				acidic(&mons[obj->corpsenm])))
1600. 		|| (typ == UNICORN_HORN && !obj->cursed &&
1601. 			mon->data->mlet != S_UNICORN)
1602. 	));
1603. }
1604. 
1605. boolean
1606. mon_reflects(mon,str)
1607. struct monst *mon;
1608. const char *str;
1609. {
1610. 	struct obj *orefl = which_armor(mon, W_ARMS);
1611. 
1612. 	if (orefl && orefl->otyp == SHIELD_OF_REFLECTION) {
1613. 	    if (str) {
1614. 		pline(str, s_suffix(mon_nam(mon)), "shield");
1615. 		makeknown(SHIELD_OF_REFLECTION);
1616. 	    }
1617. 	    return TRUE;
1618. 	} else if ((orefl = which_armor(mon, W_AMUL)) &&
1619. 				orefl->otyp == AMULET_OF_REFLECTION) {
1620. 	    if (str) {
1621. 		pline(str, s_suffix(mon_nam(mon)), "amulet");
1622. 		makeknown(AMULET_OF_REFLECTION);
1623. 	    }
1624. 	    return TRUE;
1625. 	}
1626. 	return FALSE;
1627. }
1628. 
1629. /* TRUE if the monster ate something */
1630. boolean
1631. munstone(mon, by_you)
1632. struct monst *mon;
1633. boolean by_you;
1634. {
1635. 	struct obj *obj;
1636. 
1637. 	if (resists_ston(mon)) return FALSE;
1638. 	if (mon->meating || !mon->mcanmove || mon->msleep) return FALSE;
1639. 
1640. 	for(obj = mon->minvent; obj; obj = obj->nobj) {
1641. 	    if (obj->otyp == CORPSE && (obj->corpsenm == PM_LIZARD ||
1642. 		    acidic(&mons[obj->corpsenm]))) {
1643. 		int nutrit = dog_nutrition(mon, obj); /* also sets meating */
1644. 
1645. 		if (canseemon(mon)) {
1646. 		    long save_quan = obj->quan;
1647. 
1648. 		    obj->quan = 1L;
1649. 		    pline("%s eats %s.", Monnam(mon), distant_name(obj,doname));
1650. 		    obj->quan = save_quan;
1651. 		} else if (flags.soundok) You("hear chewing.");
1652. 		m_useup(mon, obj);
1653. 		if (acidic(&mons[obj->corpsenm]) && !resists_acid(mon)) {
1654. 		    mon->mhp -= rnd(15);
1655. 		    pline("%s has a very bad case of stomach acid.",
1656. 			Monnam(mon));
1657. 		}
1658. 		if (mon->mhp <= 0) {
1659. 		    pline("%s dies!", Monnam(mon));
1660. 		    if (by_you) xkilled(mon, 0);
1661. 		    else mondead(mon);
1662. 		    return TRUE;
1663. 		}
1664. 		if (canseemon(mon)) {
1665. 		    if (Hallucination)
1666. 		pline("What a pity - %s just ruined a future piece of art!",
1667. 			mon_nam(mon));
1668. 		    else
1669. 			pline("%s seems limber!", Monnam(mon));
1670. 		}
1671. 		if (mon->mtame && !mon->isminion) {
1672. 		    struct edog *edog = EDOG(mon);
1673. 
1674. 		    if (edog->hungrytime < moves) edog->hungrytime = moves;
1675. 		    edog->hungrytime += nutrit;
1676. 		    mon->mconf = 0;
1677. 		}
1678. 		mon->mlstmv = monstermoves; /* it takes a turn */
1679. 		return TRUE;
1680. 	    }
1681. 	}
1682. 	return FALSE;
1683. }
1684. 
1685. /*muse.c*/

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