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Source:NetHack 3.4.0/muse.c

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Below is the full text to muse.c from the source code of NetHack 3.4.0. To link to a particular line, write [[NetHack 3.4.0/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	3.4	2002/02/07	*/
2.    /*	Copyright (C) 1990 by Ken Arromdee			   */
3.    /* NetHack may be freely redistributed.  See license for details.  */
4.    
5.    /*
6.     * Monster item usage routines.
7.     */
8.    
9.    #include "hack.h"
10.   #include "edog.h"
11.   
12.   extern const int monstr[];
13.   
14.   boolean m_using = FALSE;
15.   
16.   /* Let monsters use magic items.  Arbitrary assumptions: Monsters only use
17.    * scrolls when they can see, monsters know when wands have 0 charges, monsters
18.    * cannot recognize if items are cursed are not, monsters which are confused
19.    * don't know not to read scrolls, etc....
20.    */
21.   
22.   STATIC_DCL struct permonst *FDECL(muse_newcham_mon, (struct monst *));
23.   STATIC_DCL int FDECL(precheck, (struct monst *,struct obj *));
24.   STATIC_DCL void FDECL(mzapmsg, (struct monst *,struct obj *,BOOLEAN_P));
25.   STATIC_DCL void FDECL(mreadmsg, (struct monst *,struct obj *));
26.   STATIC_DCL void FDECL(mquaffmsg, (struct monst *,struct obj *));
27.   STATIC_PTR int FDECL(mbhitm, (struct monst *,struct obj *));
28.   STATIC_DCL void FDECL(mbhit,
29.   	(struct monst *,int,int FDECL((*),(MONST_P,OBJ_P)),
30.   	int FDECL((*),(OBJ_P,OBJ_P)),struct obj *));
31.   STATIC_DCL void FDECL(you_aggravate, (struct monst *));
32.   STATIC_DCL void FDECL(mon_consume_unstone, (struct monst *,struct obj *,
33.   	BOOLEAN_P,BOOLEAN_P));
34.   
35.   static struct musable {
36.   	struct obj *offensive;
37.   	struct obj *defensive;
38.   	struct obj *misc;
39.   	int has_offense, has_defense, has_misc;
40.   	/* =0, no capability; otherwise, different numbers.
41.   	 * If it's an object, the object is also set (it's 0 otherwise).
42.   	 */
43.   } m;
44.   static int trapx, trapy;
45.   static boolean zap_oseen;
46.   	/* for wands which use mbhitm and are zapped at players.  We usually
47.   	 * want an oseen local to the function, but this is impossible since the
48.   	 * function mbhitm has to be compatible with the normal zap routines,
49.   	 * and those routines don't remember who zapped the wand.
50.   	 */
51.   
52.   /* Any preliminary checks which may result in the monster being unable to use
53.    * the item.  Returns 0 if nothing happened, 2 if the monster can't do anything
54.    * (i.e. it teleported) and 1 if it's dead.
55.    */
56.   STATIC_OVL int
57.   precheck(mon, obj)
58.   struct monst *mon;
59.   struct obj *obj;
60.   {
61.   	boolean vis;
62.   
63.   	if (!obj) return 0;
64.   	vis = cansee(mon->mx, mon->my);
65.   
66.   	if (obj->oclass == POTION_CLASS) {
67.   	    coord cc;
68.   	    static const char *empty = "The potion turns out to be empty.";
69.   	    const char *potion_descr;
70.   	    struct monst *mtmp;
71.   #define POTION_OCCUPANT_CHANCE(n) (13 + 2*(n))	/* also in potion.c */
72.   
73.   	    potion_descr = OBJ_DESCR(objects[obj->otyp]);
74.   	    if (potion_descr && !strcmp(potion_descr, "milky")) {
75.   	        if ( flags.ghost_count < MAXMONNO &&
76.   		    !rn2(POTION_OCCUPANT_CHANCE(flags.ghost_count))) {
77.   		    if (!enexto(&cc, mon->mx, mon->my, &mons[PM_GHOST])) return 0;
78.   		    mquaffmsg(mon, obj);
79.   		    m_useup(mon, obj);
80.   		    mtmp = makemon(&mons[PM_GHOST], cc.x, cc.y, NO_MM_FLAGS);
81.   		    if (!mtmp) {
82.   			if (vis) pline(empty);
83.   		    } else {
84.   			if (vis) {
85.   			    pline("As %s opens the bottle, an enormous %s emerges!",
86.   			       mon_nam(mon),
87.   			       Hallucination ? rndmonnam() : (const char *)"ghost");
88.   			    pline("%s is frightened to death, and unable to move.",
89.   				    Monnam(mon));
90.   			}
91.   			mon->mcanmove = 0;
92.   			mon->mfrozen = 3;
93.   		    }
94.   		    return 2;
95.   		}
96.   	    }
97.   	    if (potion_descr && !strcmp(potion_descr, "smoky") &&
98.   		    flags.djinni_count < MAXMONNO &&
99.   		    !rn2(POTION_OCCUPANT_CHANCE(flags.djinni_count))) {
100.  		if (!enexto(&cc, mon->mx, mon->my, &mons[PM_DJINNI])) return 0;
101.  		mquaffmsg(mon, obj);
102.  		m_useup(mon, obj);
103.  		mtmp = makemon(&mons[PM_DJINNI], cc.x, cc.y, NO_MM_FLAGS);
104.  		if (!mtmp) {
105.  		    if (vis) pline(empty);
106.  		} else {
107.  		    if (vis)
108.  			pline("In a cloud of smoke, %s emerges!",
109.  							a_monnam(mtmp));
110.  		    pline("%s speaks.", vis ? Monnam(mtmp) : Something);
111.  		/* I suspect few players will be upset that monsters */
112.  		/* can't wish for wands of death here.... */
113.  		    if (rn2(2)) {
114.  			verbalize("You freed me!");
115.  			mtmp->mpeaceful = 1;
116.  			set_malign(mtmp);
117.  		    } else {
118.  			verbalize("It is about time.");
119.  			if (vis) pline("%s vanishes.", Monnam(mtmp));
120.  			mongone(mtmp);
121.  		    }
122.  		}
123.  		return 2;
124.  	    }
125.  	}
126.  	if (obj->oclass == WAND_CLASS && obj->cursed && !rn2(100)) {
127.  	    int dam = d(obj->spe+2, 6);
128.  
129.  	    if (flags.soundok) {
130.  		if (vis) pline("%s zaps %s, which suddenly explodes!",
131.  			Monnam(mon), an(xname(obj)));
132.  		else You_hear("a zap and an explosion in the distance.");
133.  	    }
134.  	    m_useup(mon, obj);
135.  	    if (mon->mhp <= dam) {
136.  		monkilled(mon, "", AD_RBRE);
137.  		return 1;
138.  	    }
139.  	    else mon->mhp -= dam;
140.  	    m.has_defense = m.has_offense = m.has_misc = 0;
141.  	    /* Only one needed to be set to 0 but the others are harmless */
142.  	}
143.  	return 0;
144.  }
145.  
146.  STATIC_OVL void
147.  mzapmsg(mtmp, otmp, self)
148.  struct monst *mtmp;
149.  struct obj *otmp;
150.  boolean self;
151.  {
152.  	if (!canseemon(mtmp)) {
153.  		if (flags.soundok)
154.  			You_hear("a %s zap.",
155.  					(distu(mtmp->mx,mtmp->my) <= (BOLT_LIM+1)*(BOLT_LIM+1)) ?
156.  					"nearby" : "distant");
157.  	} else if (self)
158.  		pline("%s zaps %sself with %s!",
159.  		      Monnam(mtmp), mhim(mtmp), doname(otmp));
160.  	else {
161.  		pline("%s zaps %s!", Monnam(mtmp), an(xname(otmp)));
162.  		stop_occupation();
163.  	}
164.  }
165.  
166.  STATIC_OVL void
167.  mreadmsg(mtmp, otmp)
168.  struct monst *mtmp;
169.  struct obj *otmp;
170.  {
171.  	boolean vismon = canseemon(mtmp);
172.  	char onambuf[BUFSZ];
173.  	short saverole;
174.  	unsigned savebknown;
175.  
176.  	if (!vismon && !flags.soundok)
177.  	    return;		/* no feedback */
178.  
179.  	otmp->dknown = 1;  /* seeing or hearing it read reveals its label */
180.  	/* shouldn't be able to hear curse/bless status of unseen scrolls;
181.  	   for priest characters, bknown will always be set during naming */
182.  	savebknown = otmp->bknown;
183.  	saverole = Role_switch;
184.  	if (!vismon) {
185.  	    otmp->bknown = 0;
186.  	    if (Role_if(PM_PRIEST)) Role_switch = 0;
187.  	}
188.  	Strcpy(onambuf, singular(otmp, doname));
189.  	Role_switch = saverole;
190.  	otmp->bknown = savebknown;
191.  
192.  	if (vismon)
193.  	    pline("%s reads %s!", Monnam(mtmp), onambuf);
194.  	else
195.  	    You_hear("%s reading %s.",
196.  		x_monnam(mtmp, ARTICLE_A, (char *)0,
197.  		    (SUPPRESS_IT|SUPPRESS_INVISIBLE|SUPPRESS_SADDLE), FALSE),
198.  		onambuf);
199.  
200.  	if (mtmp->mconf)
201.  	    pline("Being confused, %s mispronounces the magic words...",
202.  		  vismon ? mon_nam(mtmp) : mhe(mtmp));
203.  }
204.  
205.  STATIC_OVL void
206.  mquaffmsg(mtmp, otmp)
207.  struct monst *mtmp;
208.  struct obj *otmp;
209.  {
210.  	if (canseemon(mtmp)) {
211.  		otmp->dknown = 1;
212.  		pline("%s drinks %s!", Monnam(mtmp), singular(otmp, doname));
213.  	} else
214.  		if (flags.soundok)
215.  			You_hear("a chugging sound.");
216.  }
217.  
218.  /* Defines for various types of stuff.  The order in which monsters prefer
219.   * to use them is determined by the order of the code logic, not the
220.   * numerical order in which they are defined.
221.   */
222.  #define MUSE_SCR_TELEPORTATION 1
223.  #define MUSE_WAN_TELEPORTATION_SELF 2
224.  #define MUSE_POT_HEALING 3
225.  #define MUSE_POT_EXTRA_HEALING 4
226.  #define MUSE_WAN_DIGGING 5
227.  #define MUSE_TRAPDOOR 6
228.  #define MUSE_TELEPORT_TRAP 7
229.  #define MUSE_UPSTAIRS 8
230.  #define MUSE_DOWNSTAIRS 9
231.  #define MUSE_WAN_CREATE_MONSTER 10
232.  #define MUSE_SCR_CREATE_MONSTER 11
233.  #define MUSE_UP_LADDER 12
234.  #define MUSE_DN_LADDER 13
235.  #define MUSE_SSTAIRS 14
236.  #define MUSE_WAN_TELEPORTATION 15
237.  #define MUSE_BUGLE 16
238.  #define MUSE_UNICORN_HORN 17
239.  #define MUSE_POT_FULL_HEALING 18
240.  #define MUSE_LIZARD_CORPSE 19
241.  /*
242.  #define MUSE_INNATE_TPT 9999
243.   * We cannot use this.  Since monsters get unlimited teleportation, if they
244.   * were allowed to teleport at will you could never catch them.  Instead,
245.   * assume they only teleport at random times, despite the inconsistency that if
246.   * you polymorph into one you teleport at will.
247.   */
248.  
249.  /* Select a defensive item/action for a monster.  Returns TRUE iff one is
250.   * found.
251.   */
252.  boolean
253.  find_defensive(mtmp)
254.  struct monst *mtmp;
255.  {
256.  	register struct obj *obj = 0;
257.  	struct trap *t;
258.  	int x=mtmp->mx, y=mtmp->my;
259.  	boolean stuck = (mtmp == u.ustuck);
260.  	boolean immobile = (mtmp->data->mmove == 0);
261.  	int fraction;
262.  
263.  	if (is_animal(mtmp->data) || mindless(mtmp->data))
264.  		return FALSE;
265.  	if(dist2(x, y, mtmp->mux, mtmp->muy) > 25)
266.  		return FALSE;
267.  	if (u.uswallow && stuck) return FALSE;
268.  
269.  	m.defensive = (struct obj *)0;
270.  	m.has_defense = 0;
271.  
272.  	/* since unicorn horns don't get used up, the monster would look
273.  	 * silly trying to use the same cursed horn round after round
274.  	 */
275.  	if (mtmp->mconf || mtmp->mstun || !mtmp->mcansee) {
276.  	    if (!is_unicorn(mtmp->data) && !nohands(mtmp->data)) {
277.  		for(obj = mtmp->minvent; obj; obj = obj->nobj)
278.  		    if (obj->otyp == UNICORN_HORN && !obj->cursed)
279.  			break;
280.  	    }
281.  	    if (obj || is_unicorn(mtmp->data)) {
282.  		m.defensive = obj;
283.  		m.has_defense = MUSE_UNICORN_HORN;
284.  		return TRUE;
285.  	    }
286.  	}
287.  
288.  	if (mtmp->mconf) {
289.  	    for(obj = mtmp->minvent; obj; obj = obj->nobj) {
290.  		if (obj->otyp == CORPSE && obj->corpsenm == PM_LIZARD) {
291.  		    m.defensive = obj;
292.  		    m.has_defense = MUSE_LIZARD_CORPSE;
293.  		    return TRUE;
294.  		}
295.  	    }
296.  	}
297.  
298.  	/* It so happens there are two unrelated cases when we might want to
299.  	 * check specifically for healing alone.  The first is when the monster
300.  	 * is blind (healing cures blindness).  The second is when the monster
301.  	 * is peaceful; then we don't want to flee the player, and by
302.  	 * coincidence healing is all there is that doesn't involve fleeing.
303.  	 * These would be hard to combine because of the control flow.
304.  	 * Pestilence won't use healing even when blind.
305.  	 */
306.  	if (!mtmp->mcansee && !nohands(mtmp->data) &&
307.  		mtmp->data != &mons[PM_PESTILENCE]) {
308.  	    if ((obj = m_carrying(mtmp, POT_FULL_HEALING)) != 0) {
309.  		m.defensive = obj;
310.  		m.has_defense = MUSE_POT_FULL_HEALING;
311.  		return TRUE;
312.  	    }
313.  	    if ((obj = m_carrying(mtmp, POT_EXTRA_HEALING)) != 0) {
314.  		m.defensive = obj;
315.  		m.has_defense = MUSE_POT_EXTRA_HEALING;
316.  		return TRUE;
317.  	    }
318.  	    if ((obj = m_carrying(mtmp, POT_HEALING)) != 0) {
319.  		m.defensive = obj;
320.  		m.has_defense = MUSE_POT_HEALING;
321.  		return TRUE;
322.  	    }
323.  	}
324.  
325.  	fraction = u.ulevel < 10 ? 5 : u.ulevel < 14 ? 4 : 3;
326.  	if(mtmp->mhp >= mtmp->mhpmax ||
327.  			(mtmp->mhp >= 10 && mtmp->mhp*fraction >= mtmp->mhpmax))
328.  		return FALSE;
329.  
330.  	if (mtmp->mpeaceful) {
331.  	    if (!nohands(mtmp->data)) {
332.  		if ((obj = m_carrying(mtmp, POT_FULL_HEALING)) != 0) {
333.  		    m.defensive = obj;
334.  		    m.has_defense = MUSE_POT_FULL_HEALING;
335.  		    return TRUE;
336.  		}
337.  		if ((obj = m_carrying(mtmp, POT_EXTRA_HEALING)) != 0) {
338.  		    m.defensive = obj;
339.  		    m.has_defense = MUSE_POT_EXTRA_HEALING;
340.  		    return TRUE;
341.  		}
342.  		if ((obj = m_carrying(mtmp, POT_HEALING)) != 0) {
343.  		    m.defensive = obj;
344.  		    m.has_defense = MUSE_POT_HEALING;
345.  		    return TRUE;
346.  		}
347.  	    }
348.  	    return FALSE;
349.  	}
350.  
351.  	if (levl[x][y].typ == STAIRS && !stuck && !immobile) {
352.  		if (x == xdnstair && y == ydnstair && !is_floater(mtmp->data))
353.  			m.has_defense = MUSE_DOWNSTAIRS;
354.  		if (x == xupstair && y == yupstair && ledger_no(&u.uz) != 1)
355.  	/* Unfair to let the monsters leave the dungeon with the Amulet */
356.  	/* (or go to the endlevel since you also need it, to get there) */
357.  			m.has_defense = MUSE_UPSTAIRS;
358.  	} else if (levl[x][y].typ == LADDER && !stuck && !immobile) {
359.  		if (x == xupladder && y == yupladder)
360.  			m.has_defense = MUSE_UP_LADDER;
361.  		if (x == xdnladder && y == ydnladder && !is_floater(mtmp->data))
362.  			m.has_defense = MUSE_DN_LADDER;
363.  	} else if (sstairs.sx && sstairs.sx == x && sstairs.sy == y) {
364.  		m.has_defense = MUSE_SSTAIRS;
365.  	} else if (!stuck && !immobile) {
366.  	/* Note: trap doors take precedence over teleport traps. */
367.  		int xx, yy;
368.  
369.  		for(xx = x-1; xx <= x+1; xx++) for(yy = y-1; yy <= y+1; yy++)
370.  		if (isok(xx,yy))
371.  		if (xx != u.ux && yy != u.uy)
372.  		if (mtmp->data != &mons[PM_GRID_BUG] || xx == x || yy == y)
373.  		if ((xx==x && yy==y) || !level.monsters[xx][yy])
374.  		if ((t = t_at(xx,yy)) != 0)
375.  		if ((verysmall(mtmp->data) || throws_rocks(mtmp->data) ||
376.  		     passes_walls(mtmp->data)) || !sobj_at(BOULDER, xx, yy))
377.  		if (!onscary(xx,yy,mtmp)) {
378.  			if ((t->ttyp == TRAPDOOR || t->ttyp == HOLE)
379.  				&& !is_floater(mtmp->data)
380.  				&& !mtmp->isshk && !mtmp->isgd
381.  				&& !mtmp->ispriest
382.  				&& Can_fall_thru(&u.uz)
383.  						) {
384.  				trapx = xx;
385.  				trapy = yy;
386.  				m.has_defense = MUSE_TRAPDOOR;
387.  			} else if (t->ttyp == TELEP_TRAP && m.has_defense != MUSE_TRAPDOOR) {
388.  				trapx = xx;
389.  				trapy = yy;
390.  				m.has_defense = MUSE_TELEPORT_TRAP;
391.  			}
392.  		}
393.  	}
394.  
395.  	if (nohands(mtmp->data))	/* can't use objects */
396.  		goto botm;
397.  
398.  	if (is_mercenary(mtmp->data) && (obj = m_carrying(mtmp, BUGLE))) {
399.  		int xx, yy;
400.  		struct monst *mon;
401.  
402.  		/* Distance is arbitrary.  What we really want to do is
403.  		 * have the soldier play the bugle when it sees or
404.  		 * remembers soldiers nearby...
405.  		 */
406.  		for(xx = x-3; xx <= x+3; xx++) for(yy = y-3; yy <= y+3; yy++)
407.  		if (isok(xx,yy))
408.  		if ((mon = m_at(xx,yy)) && is_mercenary(mon->data) &&
409.  				mon->data != &mons[PM_GUARD] &&
410.  				(mon->msleeping || (!mon->mcanmove))) {
411.  			m.defensive = obj;
412.  			m.has_defense = MUSE_BUGLE;
413.  		}
414.  	}
415.  
416.  	/* use immediate physical escape prior to attempting magic */
417.  	if (m.has_defense)    /* stairs, trap door or tele-trap, bugle alert */
418.  		goto botm;
419.  
420.  	/* kludge to cut down on trap destruction (particularly portals) */
421.  	t = t_at(x,y);
422.  	if (t && (t->ttyp == PIT || t->ttyp == SPIKED_PIT ||
423.  		  t->ttyp == WEB || t->ttyp == BEAR_TRAP))
424.  		t = 0;		/* ok for monster to dig here */
425.  
426.  #define nomore(x) if(m.has_defense==x) continue;
427.  	for (obj = mtmp->minvent; obj; obj = obj->nobj) {
428.  		/* don't always use the same selection pattern */
429.  		if (m.has_defense && !rn2(3)) break;
430.  
431.  		/* nomore(MUSE_WAN_DIGGING); */
432.  		if (m.has_defense == MUSE_WAN_DIGGING) break;
433.  		if (obj->otyp == WAN_DIGGING && obj->spe > 0 && !stuck && !t
434.  		    && !mtmp->isshk && !mtmp->isgd && !mtmp->ispriest
435.  		    && !is_floater(mtmp->data)
436.  		    /* monsters digging in Sokoban can ruin things */
437.  		    && !In_sokoban(&u.uz)
438.  		    /* digging wouldn't be effective; assume they know that */
439.  		    && !(levl[x][y].wall_info & W_NONDIGGABLE)
440.  		    && !(Is_botlevel(&u.uz) || In_endgame(&u.uz))
441.  		    && !(is_ice(x,y) || is_pool(x,y) || is_lava(x,y))) {
442.  			m.defensive = obj;
443.  			m.has_defense = MUSE_WAN_DIGGING;
444.  		}
445.  		nomore(MUSE_WAN_TELEPORTATION_SELF);
446.  		nomore(MUSE_WAN_TELEPORTATION);
447.  		if(obj->otyp == WAN_TELEPORTATION && obj->spe > 0) {
448.  			m.defensive = obj;
449.  			m.has_defense = (mon_has_amulet(mtmp))
450.  				? MUSE_WAN_TELEPORTATION
451.  				: MUSE_WAN_TELEPORTATION_SELF;
452.  		}
453.  		nomore(MUSE_SCR_TELEPORTATION);
454.  		if(obj->otyp == SCR_TELEPORTATION && mtmp->mcansee
455.  		   && haseyes(mtmp->data)
456.  		   && (!obj->cursed ||
457.  		       (!(mtmp->isshk && inhishop(mtmp))
458.  			    && !mtmp->isgd && !mtmp->ispriest))) {
459.  			m.defensive = obj;
460.  			m.has_defense = MUSE_SCR_TELEPORTATION;
461.  		}
462.  
463.  	    if (mtmp->data != &mons[PM_PESTILENCE]) {
464.  		nomore(MUSE_POT_FULL_HEALING);
465.  		if(obj->otyp == POT_FULL_HEALING) {
466.  			m.defensive = obj;
467.  			m.has_defense = MUSE_POT_FULL_HEALING;
468.  		}
469.  		nomore(MUSE_POT_EXTRA_HEALING);
470.  		if(obj->otyp == POT_EXTRA_HEALING) {
471.  			m.defensive = obj;
472.  			m.has_defense = MUSE_POT_EXTRA_HEALING;
473.  		}
474.  		nomore(MUSE_WAN_CREATE_MONSTER);
475.  		if(obj->otyp == WAN_CREATE_MONSTER && obj->spe > 0) {
476.  			m.defensive = obj;
477.  			m.has_defense = MUSE_WAN_CREATE_MONSTER;
478.  		}
479.  		nomore(MUSE_POT_HEALING);
480.  		if(obj->otyp == POT_HEALING) {
481.  			m.defensive = obj;
482.  			m.has_defense = MUSE_POT_HEALING;
483.  		}
484.  	    } else {	/* Pestilence */
485.  		nomore(MUSE_POT_FULL_HEALING);
486.  		if (obj->otyp == POT_SICKNESS) {
487.  			m.defensive = obj;
488.  			m.has_defense = MUSE_POT_FULL_HEALING;
489.  		}
490.  		nomore(MUSE_WAN_CREATE_MONSTER);
491.  		if (obj->otyp == WAN_CREATE_MONSTER && obj->spe > 0) {
492.  			m.defensive = obj;
493.  			m.has_defense = MUSE_WAN_CREATE_MONSTER;
494.  		}
495.  	    }
496.  		nomore(MUSE_SCR_CREATE_MONSTER);
497.  		if(obj->otyp == SCR_CREATE_MONSTER) {
498.  			m.defensive = obj;
499.  			m.has_defense = MUSE_SCR_CREATE_MONSTER;
500.  		}
501.  	}
502.  botm:	return((boolean)(!!m.has_defense));
503.  #undef nomore
504.  }
505.  
506.  /* Perform a defensive action for a monster.  Must be called immediately
507.   * after find_defensive().  Return values are 0: did something, 1: died,
508.   * 2: did something and can't attack again (i.e. teleported).
509.   */
510.  int
511.  use_defensive(mtmp)
512.  struct monst *mtmp;
513.  {
514.  	int i, fleetim, how = 0;
515.  	struct obj *otmp = m.defensive;
516.  	boolean vis, vismon, oseen;
517.  	const char *mcsa = "%s can see again.";
518.  
519.  	if ((i = precheck(mtmp, otmp)) != 0) return i;
520.  	vis = cansee(mtmp->mx, mtmp->my);
521.  	vismon = canseemon(mtmp);
522.  	oseen = otmp && vismon;
523.  
524.  	/* when using defensive choice to run away, we want monster to avoid
525.  	   rushing right straight back; don't override if already scared */
526.  	fleetim = !mtmp->mflee ? (33 - (30 * mtmp->mhp / mtmp->mhpmax)) : 0;
527.  #define m_flee(m)	if (fleetim && !m->iswiz) \
528.  			{ monflee(m, fleetim, FALSE, FALSE); }
529.  
530.  	switch(m.has_defense) {
531.  	case MUSE_UNICORN_HORN:
532.  		if (vismon) {
533.  		    if (otmp)
534.  			pline("%s uses a unicorn horn!", Monnam(mtmp));
535.  		    else
536.  			pline_The("tip of %s's horn glows!", mon_nam(mtmp));
537.  		}
538.  		if (!mtmp->mcansee) {
539.  		    mtmp->mcansee = 1;
540.  		    mtmp->mblinded = 0;
541.  		    if (vismon) pline(mcsa, Monnam(mtmp));
542.  		} else if (mtmp->mconf || mtmp->mstun) {
543.  		    mtmp->mconf = mtmp->mstun = 0;
544.  		    if (vismon)
545.  			pline("%s seems steadier now.", Monnam(mtmp));
546.  		} else impossible("No need for unicorn horn?");
547.  		return 2;
548.  	case MUSE_BUGLE:
549.  		if (vismon)
550.  			pline("%s plays %s!", Monnam(mtmp), doname(otmp));
551.  		else if (flags.soundok)
552.  			You_hear("a bugle playing reveille!");
553.  		awaken_soldiers();
554.  		return 2;
555.  	case MUSE_WAN_TELEPORTATION_SELF:
556.  		if ((mtmp->isshk && inhishop(mtmp))
557.  		       || mtmp->isgd || mtmp->ispriest) return 2;
558.  		m_flee(mtmp);
559.  		mzapmsg(mtmp, otmp, TRUE);
560.  		otmp->spe--;
561.  		how = WAN_TELEPORTATION;
562.  mon_tele:
563.  		if (tele_restrict(mtmp)) {	/* mysterious force... */
564.  		    if (vismon && how)		/* mentions 'teleport' */
565.  			makeknown(how);
566.  		    return 2;
567.  		}
568.  		if ((
569.  #if 0
570.  			mon_has_amulet(mtmp) ||
571.  #endif
572.  			On_W_tower_level(&u.uz)) && !rn2(3)) {
573.  		    if (vismon)
574.  			pline("%s seems disoriented for a moment.",
575.  				Monnam(mtmp));
576.  		    return 2;
577.  		}
578.  		if (oseen && how) makeknown(how);
579.  		rloc(mtmp);
580.  		return 2;
581.  	case MUSE_WAN_TELEPORTATION:
582.  		zap_oseen = oseen;
583.  		mzapmsg(mtmp, otmp, FALSE);
584.  		otmp->spe--;
585.  		m_using = TRUE;
586.  		mbhit(mtmp,rn1(8,6),mbhitm,bhito,otmp);
587.  		m_using = FALSE;
588.  		return 2;
589.  	case MUSE_SCR_TELEPORTATION:
590.  	    {
591.  		int obj_is_cursed = otmp->cursed;
592.  
593.  		if (mtmp->isshk || mtmp->isgd || mtmp->ispriest) return 2;
594.  		m_flee(mtmp);
595.  		mreadmsg(mtmp, otmp);
596.  		m_useup(mtmp, otmp);	/* otmp might be free'ed */
597.  		how = SCR_TELEPORTATION;
598.  		if (obj_is_cursed || mtmp->mconf) {
599.  			int nlev;
600.  			d_level flev;
601.  
602.  			if (mon_has_amulet(mtmp) || In_endgame(&u.uz)) {
603.  			    if (vismon)
604.  				pline("%s seems very disoriented for a moment.",
605.  					Monnam(mtmp));
606.  			    return 2;
607.  			}
608.  			nlev = random_teleport_level();
609.  			if (nlev == depth(&u.uz)) {
610.  			    if (vismon)
611.  				pline("%s shudders for a moment.",
612.  								Monnam(mtmp));
613.  			    return 2;
614.  			}
615.  			get_level(&flev, nlev);
616.  			migrate_to_level(mtmp, ledger_no(&flev), MIGR_RANDOM,
617.  				(coord *)0);
618.  			if (oseen) makeknown(SCR_TELEPORTATION);
619.  		} else goto mon_tele;
620.  		return 2;
621.  	    }
622.  	case MUSE_WAN_DIGGING:
623.  	    {	struct trap *ttmp;
624.  
625.  		m_flee(mtmp);
626.  		mzapmsg(mtmp, otmp, FALSE);
627.  		otmp->spe--;
628.  		if (oseen) makeknown(WAN_DIGGING);
629.  		if (IS_FURNITURE(levl[mtmp->mx][mtmp->my].typ) ||
630.  		    IS_DRAWBRIDGE(levl[mtmp->mx][mtmp->my].typ) ||
631.  		    (is_drawbridge_wall(mtmp->mx, mtmp->my) >= 0) ||
632.  		    (sstairs.sx && sstairs.sx == mtmp->mx &&
633.  				   sstairs.sy == mtmp->my)) {
634.  			pline_The("digging ray is ineffective.");
635.  			return 2;
636.  		}
637.  		if (!Can_dig_down(&u.uz)) {
638.  		    if(canseemon(mtmp))
639.  			pline_The("%s here is too hard to dig in.",
640.  					surface(mtmp->mx, mtmp->my));
641.  		    return 2;
642.  		}
643.  		ttmp = maketrap(mtmp->mx, mtmp->my, HOLE);
644.  		if (!ttmp) return 2;
645.  		seetrap(ttmp);
646.  		if (vis) {
647.  		    pline("%s has made a hole in the %s.", Monnam(mtmp),
648.  				surface(mtmp->mx, mtmp->my));
649.  		    pline("%s %s through...", Monnam(mtmp),
650.  			  is_flyer(mtmp->data) ? "dives" : "falls");
651.  		} else if (flags.soundok)
652.  			You_hear("%s crash through the %s.", something,
653.  				surface(mtmp->mx, mtmp->my));
654.  		/* we made sure that there is a level for mtmp to go to */
655.  		migrate_to_level(mtmp, ledger_no(&u.uz) + 1,
656.  				 MIGR_RANDOM, (coord *)0);
657.  		return 2;
658.  	    }
659.  	case MUSE_WAN_CREATE_MONSTER:
660.  	    {	coord cc;
661.  		    /* pm: 0 => random, eel => aquatic, croc => amphibious */
662.  		struct permonst *pm = !is_pool(mtmp->mx, mtmp->my) ? 0 :
663.  			     &mons[u.uinwater ? PM_GIANT_EEL : PM_CROCODILE];
664.  		struct monst *mon;
665.  
666.  		if (!enexto(&cc, mtmp->mx, mtmp->my, pm)) return 0;
667.  		mzapmsg(mtmp, otmp, FALSE);
668.  		otmp->spe--;
669.  		mon = makemon((struct permonst *)0, cc.x, cc.y, NO_MM_FLAGS);
670.  		if (mon && canspotmon(mon) && oseen)
671.  		    makeknown(WAN_CREATE_MONSTER);
672.  		return 2;
673.  	    }
674.  	case MUSE_SCR_CREATE_MONSTER:
675.  	    {	coord cc;
676.  		struct permonst *pm = 0, *fish = 0;
677.  		int cnt = 1;
678.  		struct monst *mon;
679.  		boolean known = FALSE;
680.  
681.  		if (!rn2(73)) cnt += rnd(4);
682.  		if (mtmp->mconf || otmp->cursed) cnt += 12;
683.  		if (mtmp->mconf) pm = fish = &mons[PM_ACID_BLOB];
684.  		else if (is_pool(mtmp->mx, mtmp->my))
685.  		    fish = &mons[u.uinwater ? PM_GIANT_EEL : PM_CROCODILE];
686.  		mreadmsg(mtmp, otmp);
687.  		while(cnt--) {
688.  		    /* `fish' potentially gives bias towards water locations;
689.  		       `pm' is what to actually create (0 => random) */
690.  		    if (!enexto(&cc, mtmp->mx, mtmp->my, fish)) break;
691.  		    mon = makemon(pm, cc.x, cc.y, NO_MM_FLAGS);
692.  		    if (mon && canspotmon(mon)) known = TRUE;
693.  		}
694.  		/* The only case where we don't use oseen.  For wands, you
695.  		 * have to be able to see the monster zap the wand to know
696.  		 * what type it is.  For teleport scrolls, you have to see
697.  		 * the monster to know it teleported.
698.  		 */
699.  		if (known)
700.  		    makeknown(SCR_CREATE_MONSTER);
701.  		else if (!objects[SCR_CREATE_MONSTER].oc_name_known
702.  			&& !objects[SCR_CREATE_MONSTER].oc_uname)
703.  		    docall(otmp);
704.  		m_useup(mtmp, otmp);
705.  		return 2;
706.  	    }
707.  	case MUSE_TRAPDOOR:
708.  		/* trap doors on "bottom" levels of dungeons are rock-drop
709.  		 * trap doors, not holes in the floor.  We check here for
710.  		 * safety.
711.  		 */
712.  		if (Is_botlevel(&u.uz)) return 0;
713.  		m_flee(mtmp);
714.  		if (vis) {
715.  			struct trap *t;
716.  			t = t_at(trapx,trapy);
717.  			pline("%s %s into a %s!", Monnam(mtmp),
718.  			makeplural(locomotion(mtmp->data, "jump")),
719.  			t->ttyp == TRAPDOOR ? "trap door" : "hole");
720.  			if (levl[trapx][trapy].typ == SCORR) {
721.  			    levl[trapx][trapy].typ = CORR;
722.  			    unblock_point(trapx, trapy);
723.  			}
724.  			seetrap(t_at(trapx,trapy));
725.  		}
726.  
727.  		/*  don't use rloc_to() because worm tails must "move" */
728.  		remove_monster(mtmp->mx, mtmp->my);
729.  		newsym(mtmp->mx, mtmp->my);	/* update old location */
730.  		place_monster(mtmp, trapx, trapy);
731.  		if (mtmp->wormno) worm_move(mtmp);
732.  		newsym(trapx, trapy);
733.  
734.  		migrate_to_level(mtmp, ledger_no(&u.uz) + 1,
735.  				 MIGR_RANDOM, (coord *)0);
736.  		return 2;
737.  	case MUSE_UPSTAIRS:
738.  		/* Monsters without amulets escape the dungeon and are
739.  		 * gone for good when they leave up the up stairs.
740.  		 * Monsters with amulets would reach the endlevel,
741.  		 * which we cannot allow since that would leave the
742.  		 * player stranded.
743.  		 */
744.  		if (ledger_no(&u.uz) == 1) {
745.  			if (mon_has_special(mtmp))
746.  				return 0;
747.  			if (vismon)
748.  			    pline("%s escapes the dungeon!", Monnam(mtmp));
749.  			mongone(mtmp);
750.  			return 2;
751.  		}
752.  		m_flee(mtmp);
753.  		if (Inhell && mon_has_amulet(mtmp) && !rn2(4) &&
754.  			(dunlev(&u.uz) < dunlevs_in_dungeon(&u.uz) - 3)) {
755.  		    if (vismon) pline(
756.       "As %s climbs the stairs, a mysterious force momentarily surrounds %s...",
757.  				     mon_nam(mtmp), mhim(mtmp));
758.  		    /* simpler than for the player; this will usually be
759.  		       the Wizard and he'll immediately go right to the
760.  		       upstairs, so there's not much point in having any
761.  		       chance for a random position on the current level */
762.  		    migrate_to_level(mtmp, ledger_no(&u.uz) + 1,
763.  				     MIGR_RANDOM, (coord *)0);
764.  		} else {
765.  		    if (vismon) pline("%s escapes upstairs!", Monnam(mtmp));
766.  		    migrate_to_level(mtmp, ledger_no(&u.uz) - 1,
767.  				     MIGR_STAIRS_DOWN, (coord *)0);
768.  		}
769.  		return 2;
770.  	case MUSE_DOWNSTAIRS:
771.  		m_flee(mtmp);
772.  		if (vismon) pline("%s escapes downstairs!", Monnam(mtmp));
773.  		migrate_to_level(mtmp, ledger_no(&u.uz) + 1,
774.  				 MIGR_STAIRS_UP, (coord *)0);
775.  		return 2;
776.  	case MUSE_UP_LADDER:
777.  		m_flee(mtmp);
778.  		if (vismon) pline("%s escapes up the ladder!", Monnam(mtmp));
779.  		migrate_to_level(mtmp, ledger_no(&u.uz) - 1,
780.  				 MIGR_LADDER_DOWN, (coord *)0);
781.  		return 2;
782.  	case MUSE_DN_LADDER:
783.  		m_flee(mtmp);
784.  		if (vismon) pline("%s escapes down the ladder!", Monnam(mtmp));
785.  		migrate_to_level(mtmp, ledger_no(&u.uz) + 1,
786.  				 MIGR_LADDER_UP, (coord *)0);
787.  		return 2;
788.  	case MUSE_SSTAIRS:
789.  		m_flee(mtmp);
790.  		/* the stairs leading up from the 1st level are */
791.  		/* regular stairs, not sstairs.			*/
792.  		if (sstairs.up) {
793.  			if (vismon)
794.  			    pline("%s escapes upstairs!", Monnam(mtmp));
795.  			if(Inhell) {
796.  			    migrate_to_level(mtmp, ledger_no(&sstairs.tolev),
797.  					     MIGR_RANDOM, (coord *)0);
798.  			    return 2;
799.  			}
800.  		} else	if (vismon)
801.  		    pline("%s escapes downstairs!", Monnam(mtmp));
802.  		migrate_to_level(mtmp, ledger_no(&sstairs.tolev),
803.  				 MIGR_SSTAIRS, (coord *)0);
804.  		return 2;
805.  	case MUSE_TELEPORT_TRAP:
806.  		m_flee(mtmp);
807.  		if (vis) {
808.  			pline("%s %s onto a teleport trap!", Monnam(mtmp),
809.  				makeplural(locomotion(mtmp->data, "jump")));
810.  			if (levl[trapx][trapy].typ == SCORR) {
811.  			    levl[trapx][trapy].typ = CORR;
812.  			    unblock_point(trapx, trapy);
813.  			}
814.  			seetrap(t_at(trapx,trapy));
815.  		}
816.  		/*  don't use rloc_to() because worm tails must "move" */
817.  		remove_monster(mtmp->mx, mtmp->my);
818.  		newsym(mtmp->mx, mtmp->my);	/* update old location */
819.  		place_monster(mtmp, trapx, trapy);
820.  		if (mtmp->wormno) worm_move(mtmp);
821.  		newsym(trapx, trapy);
822.  
823.  		goto mon_tele;
824.  	case MUSE_POT_HEALING:
825.  		mquaffmsg(mtmp, otmp);
826.  		i = d(6 + 2 * bcsign(otmp), 4);
827.  		mtmp->mhp += i;
828.  		if (mtmp->mhp > mtmp->mhpmax) mtmp->mhp = ++mtmp->mhpmax;
829.  		if (!otmp->cursed && !mtmp->mcansee) {
830.  			mtmp->mcansee = 1;
831.  			mtmp->mblinded = 0;
832.  			if (vismon) pline(mcsa, Monnam(mtmp));
833.  		}
834.  		if (vismon) pline("%s looks better.", Monnam(mtmp));
835.  		if (oseen) makeknown(POT_HEALING);
836.  		m_useup(mtmp, otmp);
837.  		return 2;
838.  	case MUSE_POT_EXTRA_HEALING:
839.  		mquaffmsg(mtmp, otmp);
840.  		i = d(6 + 2 * bcsign(otmp), 8);
841.  		mtmp->mhp += i;
842.  		if (mtmp->mhp > mtmp->mhpmax)
843.  			mtmp->mhp = (mtmp->mhpmax += (otmp->blessed ? 5 : 2));
844.  		if (!mtmp->mcansee) {
845.  			mtmp->mcansee = 1;
846.  			mtmp->mblinded = 0;
847.  			if (vismon) pline(mcsa, Monnam(mtmp));
848.  		}
849.  		if (vismon) pline("%s looks much better.", Monnam(mtmp));
850.  		if (oseen) makeknown(POT_EXTRA_HEALING);
851.  		m_useup(mtmp, otmp);
852.  		return 2;
853.  	case MUSE_POT_FULL_HEALING:
854.  		mquaffmsg(mtmp, otmp);
855.  		if (otmp->otyp == POT_SICKNESS) unbless(otmp); /* Pestilence */
856.  		mtmp->mhp = (mtmp->mhpmax += (otmp->blessed ? 8 : 4));
857.  		if (!mtmp->mcansee && otmp->otyp != POT_SICKNESS) {
858.  			mtmp->mcansee = 1;
859.  			mtmp->mblinded = 0;
860.  			if (vismon) pline(mcsa, Monnam(mtmp));
861.  		}
862.  		if (vismon) pline("%s looks completely healed.", Monnam(mtmp));
863.  		if (oseen) makeknown(otmp->otyp);
864.  		m_useup(mtmp, otmp);
865.  		return 2;
866.  	case MUSE_LIZARD_CORPSE:
867.  		/* not actually called for its unstoning effect */
868.  		mon_consume_unstone(mtmp, otmp, FALSE, FALSE);
869.  		return 2;
870.  	case 0: return 0; /* i.e. an exploded wand */
871.  	default: impossible("%s wanted to perform action %d?", Monnam(mtmp),
872.  			m.has_defense);
873.  		break;
874.  	}
875.  	return 0;
876.  #undef m_flee
877.  }
878.  
879.  int
880.  rnd_defensive_item(mtmp)
881.  struct monst *mtmp;
882.  {
883.  	struct permonst *pm = mtmp->data;
884.  	int difficulty = monstr[(monsndx(pm))];
885.  
886.  	if(is_animal(pm) || attacktype(pm, AT_EXPL) || mindless(mtmp->data)
887.  			|| pm->mlet == S_GHOST
888.  # ifdef KOPS
889.  			|| pm->mlet == S_KOP
890.  # endif
891.  		) return 0;
892.  	switch (rn2(8 + (difficulty > 3) + (difficulty > 6) +
893.  				(difficulty > 8))) {
894.  		case 6: case 9:
895.  			if (!rn2(3)) return WAN_TELEPORTATION;
896.  			/* else FALLTHRU */
897.  		case 0: case 1:
898.  			return SCR_TELEPORTATION;
899.  		case 8: case 10:
900.  			if (!rn2(3)) return WAN_CREATE_MONSTER;
901.  			/* else FALLTHRU */
902.  		case 2: return SCR_CREATE_MONSTER;
903.  		case 3: return POT_HEALING;
904.  		case 4: return POT_EXTRA_HEALING;
905.  		case 5: return (mtmp->data != &mons[PM_PESTILENCE]) ?
906.  				POT_FULL_HEALING : POT_SICKNESS;
907.  		case 7: if (is_floater(pm) || mtmp->isshk || mtmp->isgd
908.  						|| mtmp->ispriest
909.  									)
910.  				return 0;
911.  			else
912.  				return WAN_DIGGING;
913.  	}
914.  	/*NOTREACHED*/
915.  	return 0;
916.  }
917.  
918.  #define MUSE_WAN_DEATH 1
919.  #define MUSE_WAN_SLEEP 2
920.  #define MUSE_WAN_FIRE 3
921.  #define MUSE_WAN_COLD 4
922.  #define MUSE_WAN_LIGHTNING 5
923.  #define MUSE_WAN_MAGIC_MISSILE 6
924.  #define MUSE_WAN_STRIKING 7
925.  #define MUSE_SCR_FIRE 8
926.  #define MUSE_POT_PARALYSIS 9
927.  #define MUSE_POT_BLINDNESS 10
928.  #define MUSE_POT_CONFUSION 11
929.  #define MUSE_FROST_HORN 12
930.  #define MUSE_FIRE_HORN 13
931.  #define MUSE_POT_ACID 14
932.  /*#define MUSE_WAN_TELEPORTATION 15*/
933.  #define MUSE_POT_SLEEPING 16
934.  #define MUSE_SCR_EARTH 17
935.  
936.  /* Select an offensive item/action for a monster.  Returns TRUE iff one is
937.   * found.
938.   */
939.  boolean
940.  find_offensive(mtmp)
941.  struct monst *mtmp;
942.  {
943.  	register struct obj *obj;
944.  	boolean ranged_stuff = lined_up(mtmp);
945.  	boolean reflection_skip = (Reflecting && rn2(2));
946.  	struct obj *helmet = which_armor(mtmp, W_ARMH);
947.  
948.  	m.offensive = (struct obj *)0;
949.  	m.has_offense = 0;
950.  	if (mtmp->mpeaceful || is_animal(mtmp->data) ||
951.  				mindless(mtmp->data) || nohands(mtmp->data))
952.  		return FALSE;
953.  	if (u.uswallow) return FALSE;
954.  	if (in_your_sanctuary(mtmp, 0, 0)) return FALSE;
955.  	if (dmgtype(mtmp->data, AD_HEAL) && !uwep
956.  #ifdef TOURIST
957.  	    && !uarmu
958.  #endif
959.  	    && !uarm && !uarmh && !uarms && !uarmg && !uarmc && !uarmf)
960.  		return FALSE;
961.  
962.  	if (!ranged_stuff) return FALSE;
963.  #define nomore(x) if(m.has_offense==x) continue;
964.  	for(obj=mtmp->minvent; obj; obj=obj->nobj) {
965.  		/* nomore(MUSE_WAN_DEATH); */
966.  		if (!reflection_skip) {
967.  		    if(obj->otyp == WAN_DEATH && obj->spe > 0) {
968.  			m.offensive = obj;
969.  			m.has_offense = MUSE_WAN_DEATH;
970.  		    }
971.  		    nomore(MUSE_WAN_SLEEP);
972.  		    if(obj->otyp == WAN_SLEEP && obj->spe > 0 && multi >= 0) {
973.  			m.offensive = obj;
974.  			m.has_offense = MUSE_WAN_SLEEP;
975.  		    }
976.  		    nomore(MUSE_WAN_FIRE);
977.  		    if(obj->otyp == WAN_FIRE && obj->spe > 0) {
978.  			m.offensive = obj;
979.  			m.has_offense = MUSE_WAN_FIRE;
980.  		    }
981.  		    nomore(MUSE_FIRE_HORN);
982.  		    if(obj->otyp == FIRE_HORN && obj->spe > 0) {
983.  			m.offensive = obj;
984.  			m.has_offense = MUSE_FIRE_HORN;
985.  		    }
986.  		    nomore(MUSE_WAN_COLD);
987.  		    if(obj->otyp == WAN_COLD && obj->spe > 0) {
988.  			m.offensive = obj;
989.  			m.has_offense = MUSE_WAN_COLD;
990.  		    }
991.  		    nomore(MUSE_FROST_HORN);
992.  		    if(obj->otyp == FROST_HORN && obj->spe > 0) {
993.  			m.offensive = obj;
994.  			m.has_offense = MUSE_FROST_HORN;
995.  		    }
996.  		    nomore(MUSE_WAN_LIGHTNING);
997.  		    if(obj->otyp == WAN_LIGHTNING && obj->spe > 0) {
998.  			m.offensive = obj;
999.  			m.has_offense = MUSE_WAN_LIGHTNING;
1000. 		    }
1001. 		    nomore(MUSE_WAN_MAGIC_MISSILE);
1002. 		    if(obj->otyp == WAN_MAGIC_MISSILE && obj->spe > 0) {
1003. 			m.offensive = obj;
1004. 			m.has_offense = MUSE_WAN_MAGIC_MISSILE;
1005. 		    }
1006. 		}
1007. 		nomore(MUSE_WAN_STRIKING);
1008. 		if(obj->otyp == WAN_STRIKING && obj->spe > 0) {
1009. 			m.offensive = obj;
1010. 			m.has_offense = MUSE_WAN_STRIKING;
1011. 		}
1012. 		nomore(MUSE_POT_PARALYSIS);
1013. 		if(obj->otyp == POT_PARALYSIS && multi >= 0) {
1014. 			m.offensive = obj;
1015. 			m.has_offense = MUSE_POT_PARALYSIS;
1016. 		}
1017. 		nomore(MUSE_POT_BLINDNESS);
1018. 		if(obj->otyp == POT_BLINDNESS && !attacktype(mtmp->data, AT_GAZE)) {
1019. 			m.offensive = obj;
1020. 			m.has_offense = MUSE_POT_BLINDNESS;
1021. 		}
1022. 		nomore(MUSE_POT_CONFUSION);
1023. 		if(obj->otyp == POT_CONFUSION) {
1024. 			m.offensive = obj;
1025. 			m.has_offense = MUSE_POT_CONFUSION;
1026. 		}
1027. 		nomore(MUSE_POT_SLEEPING);
1028. 		if(obj->otyp == POT_SLEEPING) {
1029. 			m.offensive = obj;
1030. 			m.has_offense = MUSE_POT_SLEEPING;
1031. 		}
1032. 		nomore(MUSE_POT_ACID);
1033. 		if(obj->otyp == POT_ACID) {
1034. 			m.offensive = obj;
1035. 			m.has_offense = MUSE_POT_ACID;
1036. 		}
1037. 		/* we can safely put this scroll here since the locations that
1038. 		 * are in a 1 square radius are a subset of the locations that
1039. 		 * are in wand range
1040. 		 */
1041. 		nomore(MUSE_SCR_EARTH);
1042. 		if (obj->otyp == SCR_EARTH
1043. 		       && ((helmet && is_metallic(helmet)) ||
1044. 				mtmp->mconf || amorphous(mtmp->data) ||
1045. 				passes_walls(mtmp->data) ||
1046. 				noncorporeal(mtmp->data) ||
1047. 				unsolid(mtmp->data) || !rn2(10))
1048. 		       && dist2(mtmp->mx,mtmp->my,mtmp->mux,mtmp->muy) <= 2
1049. 		       && mtmp->mcansee && haseyes(mtmp->data)
1050. #ifdef REINCARNATION
1051. 		       && !Is_rogue_level(&u.uz)
1052. #endif
1053. 		       && (!In_endgame(&u.uz) || Is_earthlevel(&u.uz))) {
1054. 		    m.offensive = obj;
1055. 		    m.has_offense = MUSE_SCR_EARTH;
1056. 		}
1057. #if 0
1058. 		nomore(MUSE_SCR_FIRE);
1059. 		if (obj->otyp == SCR_FIRE && resists_fire(mtmp)
1060. 		   && dist2(mtmp->mx,mtmp->my,mtmp->mux,mtmp->muy) <= 2
1061. 		   && mtmp->mcansee && haseyes(mtmp->data)) {
1062. 			m.offensive = obj;
1063. 			m.has_offense = MUSE_SCR_FIRE;
1064. 		}
1065. #endif
1066. 	}
1067. 	return((boolean)(!!m.has_offense));
1068. #undef nomore
1069. }
1070. 
1071. STATIC_PTR
1072. int
1073. mbhitm(mtmp, otmp)
1074. register struct monst *mtmp;
1075. register struct obj *otmp;
1076. {
1077. 	int tmp;
1078. 
1079. 	boolean reveal_invis = FALSE;
1080. 	if (mtmp != &youmonst) {
1081. 		mtmp->msleeping = 0;
1082. 		if (mtmp->m_ap_type) seemimic(mtmp);
1083. 	}
1084. 	switch(otmp->otyp) {
1085. 	case WAN_STRIKING:
1086. 		reveal_invis = TRUE;
1087. 		if (mtmp == &youmonst) {
1088. 			if (zap_oseen) makeknown(WAN_STRIKING);
1089. 			if (Antimagic) {
1090. 			    shieldeff(u.ux, u.uy);
1091. 			    pline("Boing!");
1092. 			} else if (rnd(20) < 10 + u.uac) {
1093. 			    pline_The("wand hits you!");
1094. 			    tmp = d(2,12);
1095. 			    if(Half_spell_damage) tmp = (tmp+1) / 2;
1096. 			    losehp(tmp, "wand", KILLED_BY_AN);
1097. 			} else pline_The("wand misses you.");
1098. 			stop_occupation();
1099. 			nomul(0);
1100. 		} else if (resists_magm(mtmp)) {
1101. 			shieldeff(mtmp->mx, mtmp->my);
1102. 			pline("Boing!");
1103. 		} else if (rnd(20) < 10+find_mac(mtmp)) {
1104. 			tmp = d(2,12);
1105. 			hit("wand", mtmp, exclam(tmp));
1106. 			(void) resist(mtmp, otmp->oclass, tmp, TELL);
1107. 			if (cansee(mtmp->mx, mtmp->my) && zap_oseen)
1108. 				makeknown(WAN_STRIKING);
1109. 		} else {
1110. 			miss("wand", mtmp);
1111. 			if (cansee(mtmp->mx, mtmp->my) && zap_oseen)
1112. 				makeknown(WAN_STRIKING);
1113. 		}
1114. 		break;
1115. 	case WAN_TELEPORTATION:
1116. 		if (mtmp == &youmonst) {
1117. 			if (zap_oseen) makeknown(WAN_TELEPORTATION);
1118. 			tele();
1119. 		} else {
1120. 			/* for consistency with zap.c, don't identify */
1121. 			if (mtmp->ispriest &&
1122. 				*in_rooms(mtmp->mx, mtmp->my, TEMPLE)) {
1123. 			    if (cansee(mtmp->mx, mtmp->my))
1124. 				pline("%s resists the magic!", Monnam(mtmp));
1125. 			    mtmp->msleeping = 0;
1126. 			    if(mtmp->m_ap_type) seemimic(mtmp);
1127. 			} else if (!tele_restrict(mtmp))
1128. 			    rloc(mtmp);
1129. 		}
1130. 		break;
1131. 	case WAN_CANCELLATION:
1132. 	case SPE_CANCELLATION:
1133. 		cancel_monst(mtmp, otmp, FALSE, TRUE, FALSE);
1134. 		break;
1135. 	}
1136. 	if (reveal_invis) {
1137. 	    if (mtmp->mhp > 0 && cansee(bhitpos.x,bhitpos.y)
1138. 							&& !canspotmon(mtmp))
1139. 		map_invisible(bhitpos.x, bhitpos.y);
1140. 	}
1141. 	return 0;
1142. }
1143. 
1144. /* A modified bhit() for monsters.  Based on bhit() in zap.c.  Unlike
1145.  * buzz(), bhit() doesn't take into account the possibility of a monster
1146.  * zapping you, so we need a special function for it.  (Unless someone wants
1147.  * to merge the two functions...)
1148.  */
1149. STATIC_OVL void
1150. mbhit(mon,range,fhitm,fhito,obj)
1151. struct monst *mon;			/* monster shooting the wand */
1152. register int range;			/* direction and range */
1153. int FDECL((*fhitm),(MONST_P,OBJ_P));
1154. int FDECL((*fhito),(OBJ_P,OBJ_P));	/* fns called when mon/obj hit */
1155. struct obj *obj;			/* 2nd arg to fhitm/fhito */
1156. {
1157. 	register struct monst *mtmp;
1158. 	register struct obj *otmp;
1159. 	register uchar typ;
1160. 	int ddx, ddy;
1161. 
1162. 	bhitpos.x = mon->mx;
1163. 	bhitpos.y = mon->my;
1164. 	ddx = sgn(mon->mux - mon->mx);
1165. 	ddy = sgn(mon->muy - mon->my);
1166. 
1167. 	while(range-- > 0) {
1168. 		int x,y;
1169. 
1170. 		bhitpos.x += ddx;
1171. 		bhitpos.y += ddy;
1172. 		x = bhitpos.x; y = bhitpos.y;
1173. 
1174. 		if (!isok(x,y)) {
1175. 		    bhitpos.x -= ddx;
1176. 		    bhitpos.y -= ddy;
1177. 		    break;
1178. 		}
1179. 		if (find_drawbridge(&x,&y))
1180. 		    switch (obj->otyp) {
1181. 			case WAN_STRIKING:
1182. 			    destroy_drawbridge(x,y);
1183. 		    }
1184. 		if(bhitpos.x==u.ux && bhitpos.y==u.uy) {
1185. 			(*fhitm)(&youmonst, obj);
1186. 			range -= 3;
1187. 		} else if(MON_AT(bhitpos.x, bhitpos.y)){
1188. 			mtmp = m_at(bhitpos.x,bhitpos.y);
1189. 			if (cansee(bhitpos.x,bhitpos.y) && !canspotmon(mtmp))
1190. 			    map_invisible(bhitpos.x, bhitpos.y);
1191. 			(*fhitm)(mtmp, obj);
1192. 			range -= 3;
1193. 		}
1194. 		/* modified by GAN to hit all objects */
1195. 		if(fhito){
1196. 		    int hitanything = 0;
1197. 		    register struct obj *next_obj;
1198. 
1199. 		    for(otmp = level.objects[bhitpos.x][bhitpos.y];
1200. 							otmp; otmp = next_obj) {
1201. 			/* Fix for polymorph bug, Tim Wright */
1202. 			next_obj = otmp->nexthere;
1203. 			hitanything += (*fhito)(otmp, obj);
1204. 		    }
1205. 		    if(hitanything)	range--;
1206. 		}
1207. 		typ = levl[bhitpos.x][bhitpos.y].typ;
1208. 		if(IS_DOOR(typ) || typ == SDOOR) {
1209. 		    switch (obj->otyp) {
1210. 			/* note: monsters don't use opening or locking magic
1211. 			   at present, but keep these as placeholders */
1212. 			case WAN_OPENING:
1213. 			case WAN_LOCKING:
1214. 			case WAN_STRIKING:
1215. 			    if (doorlock(obj, bhitpos.x, bhitpos.y)) {
1216. 				makeknown(obj->otyp);
1217. 				/* if a shop door gets broken, add it to
1218. 				   the shk's fix list (no cost to player) */
1219. 				if (levl[bhitpos.x][bhitpos.y].doormask ==
1220. 					D_BROKEN &&
1221. 				    *in_rooms(bhitpos.x, bhitpos.y, SHOPBASE))
1222. 				    add_damage(bhitpos.x, bhitpos.y, 0L);
1223. 			    }
1224. 			    break;
1225. 		    }
1226. 		}
1227. 		if(!ZAP_POS(typ) || (IS_DOOR(typ) &&
1228. 		   (levl[bhitpos.x][bhitpos.y].doormask & (D_LOCKED | D_CLOSED)))
1229. 		  ) {
1230. 			bhitpos.x -= ddx;
1231. 			bhitpos.y -= ddy;
1232. 			break;
1233. 		}
1234. 	}
1235. }
1236. 
1237. /* Perform an offensive action for a monster.  Must be called immediately
1238.  * after find_offensive().  Return values are same as use_defensive().
1239.  */
1240. int
1241. use_offensive(mtmp)
1242. struct monst *mtmp;
1243. {
1244. 	int i;
1245. 	struct obj *otmp = m.offensive;
1246. 	boolean oseen;
1247. 
1248. 	/* offensive potions are not drunk, they're thrown */
1249. 	if (otmp->oclass != POTION_CLASS && (i = precheck(mtmp, otmp)) != 0)
1250. 		return i;
1251. 	oseen = otmp && canseemon(mtmp);
1252. 
1253. 	switch(m.has_offense) {
1254. 	case MUSE_WAN_DEATH:
1255. 	case MUSE_WAN_SLEEP:
1256. 	case MUSE_WAN_FIRE:
1257. 	case MUSE_WAN_COLD:
1258. 	case MUSE_WAN_LIGHTNING:
1259. 	case MUSE_WAN_MAGIC_MISSILE:
1260. 		mzapmsg(mtmp, otmp, FALSE);
1261. 		otmp->spe--;
1262. 		if (oseen) makeknown(otmp->otyp);
1263. 		m_using = TRUE;
1264. 		buzz((int)(-30 - (otmp->otyp - WAN_MAGIC_MISSILE)),
1265. 			(otmp->otyp == WAN_MAGIC_MISSILE) ? 2 : 6,
1266. 			mtmp->mx, mtmp->my,
1267. 			sgn(mtmp->mux-mtmp->mx), sgn(mtmp->muy-mtmp->my));
1268. 		m_using = FALSE;
1269. 		return (mtmp->mhp <= 0) ? 1 : 2;
1270. 	case MUSE_FIRE_HORN:
1271. 	case MUSE_FROST_HORN:
1272. 		if (oseen) {
1273. 			makeknown(otmp->otyp);
1274. 			pline("%s plays a %s!", Monnam(mtmp), xname(otmp));
1275. 		} else
1276. 			You_hear("a horn being played.");
1277. 		otmp->spe--;
1278. 		m_using = TRUE;
1279. 		buzz(-30 - ((otmp->otyp==FROST_HORN) ? AD_COLD-1 : AD_FIRE-1),
1280. 			rn1(6,6), mtmp->mx, mtmp->my,
1281. 			sgn(mtmp->mux-mtmp->mx), sgn(mtmp->muy-mtmp->my));
1282. 		m_using = FALSE;
1283. 		return (mtmp->mhp <= 0) ? 1 : 2;
1284. 	case MUSE_WAN_TELEPORTATION:
1285. 	case MUSE_WAN_STRIKING:
1286. 		zap_oseen = oseen;
1287. 		mzapmsg(mtmp, otmp, FALSE);
1288. 		otmp->spe--;
1289. 		m_using = TRUE;
1290. 		mbhit(mtmp,rn1(8,6),mbhitm,bhito,otmp);
1291. 		m_using = FALSE;
1292. 		return 2;
1293. 	case MUSE_SCR_EARTH:
1294. 	    {
1295. 		/* TODO: handle steeds */
1296. 	    	register int x, y;
1297. 		/* don't use monster fields after killing it */
1298. 		boolean confused = (mtmp->mconf ? TRUE : FALSE);
1299. 		int mmx = mtmp->mx, mmy = mtmp->my;
1300. 
1301. 		mreadmsg(mtmp, otmp);
1302. 	    	/* Identify the scroll */
1303. 		if (canspotmon(mtmp)) {
1304. 		    pline_The("%s rumbles %s %s!", ceiling(mtmp->mx, mtmp->my),
1305. 	    			otmp->blessed ? "around" : "above",
1306. 				mon_nam(mtmp));
1307. 		    if (oseen) makeknown(otmp->otyp);
1308. 		} else if (cansee(mtmp->mx, mtmp->my)) {
1309. 		    pline_The("%s rumbles in the middle of nowhere!",
1310. 			ceiling(mtmp->mx, mtmp->my));
1311. 		    if (mtmp->minvis)
1312. 			map_invisible(mtmp->mx, mtmp->my);
1313. 		    if (oseen) makeknown(otmp->otyp);
1314. 		}
1315. 
1316. 	    	/* Loop through the surrounding squares */
1317. 	    	for (x = mmx-1; x <= mmx+1; x++) {
1318. 	    	    for (y = mmy-1; y <= mmy+1; y++) {
1319. 	    	    	/* Is this a suitable spot? */
1320. 	    	    	if (isok(x, y) && !closed_door(x, y) &&
1321. 	    	    			!IS_ROCK(levl[x][y].typ) &&
1322. 	    	    			!IS_AIR(levl[x][y].typ) &&
1323. 	    	    			(((x == mmx) && (y == mmy)) ?
1324. 	    	    			    !otmp->blessed : !otmp->cursed) &&
1325. 					(x != u.ux || y != u.uy)) {
1326. 			    register struct obj *otmp2;
1327. 			    register struct monst *mtmp2;
1328. 
1329. 	    	    	    /* Make the object(s) */
1330. 	    	    	    otmp2 = mksobj(confused ? ROCK : BOULDER,
1331. 	    	    	    		FALSE, FALSE);
1332. 	    	    	    if (!otmp2) continue;  /* Shouldn't happen */
1333. 	    	    	    otmp2->quan = confused ? rn1(5,2) : 1;
1334. 	    	    	    otmp2->owt = weight(otmp2);
1335. 
1336. 	    	    	    /* Find the monster here (might be same as mtmp) */
1337. 	    	    	    mtmp2 = m_at(x, y);
1338. 	    	    	    if (mtmp2 && !amorphous(mtmp2->data) &&
1339. 	    	    	    		!passes_walls(mtmp2->data) &&
1340. 	    	    	    		!noncorporeal(mtmp2->data) &&
1341. 	    	    	    		!unsolid(mtmp2->data)) {
1342. 				struct obj *helmet = which_armor(mtmp2, W_ARMH);
1343. 				int mdmg;
1344. 
1345. 				if (cansee(mtmp2->mx, mtmp2->my)) {
1346. 				    pline("%s is hit by %s!", Monnam(mtmp2),
1347. 	    	    	    			doname(otmp2));
1348. 				    if (mtmp2->minvis && !canspotmon(mtmp2))
1349. 					map_invisible(mtmp2->mx, mtmp2->my);
1350. 				}
1351. 	    	    	    	mdmg = dmgval(otmp2, mtmp2) * otmp2->quan;
1352. 				if (helmet) {
1353. 				    if(is_metallic(helmet)) {
1354. 					if (canspotmon(mtmp2))
1355. 					    pline("Fortunately, %s is wearing a hard helmet.", mon_nam(mtmp2));
1356. 					else if (flags.soundok)
1357. 					    You_hear("a clanging sound.");
1358. 					if (mdmg > 2) mdmg = 2;
1359. 				    } else {
1360. 					if (canspotmon(mtmp2))
1361. 					    pline("%s's %s does not protect %s.",
1362. 						Monnam(mtmp2), xname(helmet),
1363. 						mhim(mtmp2));
1364. 				    }
1365. 				}
1366. 	    	    	    	mtmp2->mhp -= mdmg;
1367. 	    	    	    	if (mtmp2->mhp <= 0) {
1368. 				    pline("%s is killed.", Monnam(mtmp2));
1369. 	    	    	    	    mondied(mtmp2);
1370. 				}
1371. 	    	    	    }
1372. 	    	    	    /* Drop the rock/boulder to the floor */
1373. 	    	    	    if (!flooreffects(otmp2, x, y, "fall")) {
1374. 	    	    	    	place_object(otmp2, x, y);
1375. 	    	    	    	stackobj(otmp2);
1376. 	    	    	    	newsym(x, y);  /* map the rock */
1377. 	    	    	    }
1378. 	    	    	}
1379. 		    }
1380. 		}
1381. 		m_useup(mtmp, otmp);
1382. 		/* Attack the player */
1383. 		if (distmin(mmx, mmy, u.ux, u.uy) == 1 && !otmp->cursed) {
1384. 		    int dmg;
1385. 		    struct obj *otmp2;
1386. 
1387. 		    /* Okay, _you_ write this without repeating the code */
1388. 		    otmp2 = mksobj(confused ? ROCK : BOULDER,
1389. 				FALSE, FALSE);
1390. 		    if (!otmp2) goto xxx_noobj;  /* Shouldn't happen */
1391. 		    otmp2->quan = confused ? rn1(5,2) : 1;
1392. 		    otmp2->owt = weight(otmp2);
1393. 		    if (!amorphous(youmonst.data) &&
1394. 			    !Passes_walls &&
1395. 			    !noncorporeal(youmonst.data) &&
1396. 			    !unsolid(youmonst.data)) {
1397. 			You("are hit by %s!", doname(otmp2));
1398. 			dmg = dmgval(otmp2, &youmonst) * otmp2->quan;
1399. 			if (uarmh) {
1400. 			    if(is_metallic(uarmh)) {
1401. 				pline("Fortunately, you are wearing a hard helmet.");
1402. 				if (dmg > 2) dmg = 2;
1403. 			    } else if (flags.verbose) {
1404. 				Your("%s does not protect you.",
1405. 						xname(uarmh));
1406. 			    }
1407. 			}
1408. 		    } else
1409. 			dmg = 0;
1410. 		    if (!flooreffects(otmp2, u.ux, u.uy, "fall")) {
1411. 			place_object(otmp2, u.ux, u.uy);
1412. 			stackobj(otmp2);
1413. 			newsym(u.ux, u.uy);
1414. 		    }
1415. 		    if (dmg) losehp(dmg, "scroll of earth", KILLED_BY_AN);
1416. 		}
1417. 	    xxx_noobj:
1418. 
1419. 		return (mtmp->mhp <= 0) ? 1 : 2;
1420. 	    }
1421. #if 0
1422. 	case MUSE_SCR_FIRE:
1423. 	      {
1424. 		boolean vis = cansee(mtmp->mx, mtmp->my);
1425. 
1426. 		mreadmsg(mtmp, otmp);
1427. 		if (mtmp->mconf) {
1428. 			if (vis)
1429. 			    pline("Oh, what a pretty fire!");
1430. 		} else {
1431. 			struct monst *mtmp2;
1432. 			int num;
1433. 
1434. 			if (vis)
1435. 			    pline_The("scroll erupts in a tower of flame!");
1436. 			shieldeff(mtmp->mx, mtmp->my);
1437. 			pline("%s is uninjured.", Monnam(mtmp));
1438. 			(void) destroy_mitem(mtmp, SCROLL_CLASS, AD_FIRE);
1439. 			(void) destroy_mitem(mtmp, SPBOOK_CLASS, AD_FIRE);
1440. 			(void) destroy_mitem(mtmp, POTION_CLASS, AD_FIRE);
1441. 			num = (2*(rn1(3, 3) + 2 * bcsign(otmp)) + 1)/3;
1442. 			if (Fire_resistance)
1443. 			    You("are not harmed.");
1444. 			burn_away_slime();
1445. 			if (Half_spell_damage) num = (num+1) / 2;
1446. 			else losehp(num, "scroll of fire", KILLED_BY_AN);
1447. 			for(mtmp2 = fmon; mtmp2; mtmp2 = mtmp2->nmon) {
1448. 			   if(DEADMONSTER(mtmp2)) continue;
1449. 			   if(mtmp == mtmp2) continue;
1450. 			   if(dist2(mtmp2->mx,mtmp2->my,mtmp->mx,mtmp->my) < 3){
1451. 				if (resists_fire(mtmp2)) continue;
1452. 				mtmp2->mhp -= num;
1453. 				if (resists_cold(mtmp2))
1454. 				    mtmp2->mhp -= 3*num;
1455. 				if(mtmp2->mhp < 1) {
1456. 				    mondied(mtmp2);
1457. 				    break;
1458. 				}
1459. 			    }
1460. 			}
1461. 		}
1462. 		return 2;
1463. 	      }
1464. #endif	/* 0 */
1465. 	case MUSE_POT_PARALYSIS:
1466. 	case MUSE_POT_BLINDNESS:
1467. 	case MUSE_POT_CONFUSION:
1468. 	case MUSE_POT_SLEEPING:
1469. 	case MUSE_POT_ACID:
1470. 		/* Note: this setting of dknown doesn't suffice.  A monster
1471. 		 * which is out of sight might throw and it hits something _in_
1472. 		 * sight, a problem not existing with wands because wand rays
1473. 		 * are not objects.  Also set dknown in mthrowu.c.
1474. 		 */
1475. 		if (cansee(mtmp->mx, mtmp->my)) {
1476. 			otmp->dknown = 1;
1477. 			pline("%s hurls %s!", Monnam(mtmp),
1478. 						singular(otmp, doname));
1479. 		}
1480. 		m_throw(mtmp, mtmp->mx, mtmp->my, sgn(mtmp->mux-mtmp->mx),
1481. 			sgn(mtmp->muy-mtmp->my),
1482. 			distmin(mtmp->mx,mtmp->my,mtmp->mux,mtmp->muy), otmp);
1483. 		return 2;
1484. 	case 0: return 0; /* i.e. an exploded wand */
1485. 	default: impossible("%s wanted to perform action %d?", Monnam(mtmp),
1486. 			m.has_offense);
1487. 		break;
1488. 	}
1489. 	return 0;
1490. }
1491. 
1492. int
1493. rnd_offensive_item(mtmp)
1494. struct monst *mtmp;
1495. {
1496. 	struct permonst *pm = mtmp->data;
1497. 	int difficulty = monstr[(monsndx(pm))];
1498. 
1499. 	if(is_animal(pm) || attacktype(pm, AT_EXPL) || mindless(mtmp->data)
1500. 			|| pm->mlet == S_GHOST
1501. # ifdef KOPS
1502. 			|| pm->mlet == S_KOP
1503. # endif
1504. 		) return 0;
1505. 	if (difficulty > 7 && !rn2(35)) return WAN_DEATH;
1506. 	switch (rn2(9 - (difficulty < 4) + 4 * (difficulty > 6))) {
1507. 		case 0: {
1508. 		    struct obj *helmet = which_armor(mtmp, W_ARMH);
1509. 
1510. 		    if ((helmet && is_metallic(helmet)) || amorphous(pm) || passes_walls(pm) || noncorporeal(pm) || unsolid(pm))
1511. 			return SCR_EARTH;
1512. 		} /* fall through */
1513. 		case 1: return WAN_STRIKING;
1514. 		case 2: return POT_ACID;
1515. 		case 3: return POT_CONFUSION;
1516. 		case 4: return POT_BLINDNESS;
1517. 		case 5: return POT_SLEEPING;
1518. 		case 6: return POT_PARALYSIS;
1519. 		case 7: case 8:
1520. 			return WAN_MAGIC_MISSILE;
1521. 		case 9: return WAN_SLEEP;
1522. 		case 10: return WAN_FIRE;
1523. 		case 11: return WAN_COLD;
1524. 		case 12: return WAN_LIGHTNING;
1525. 	}
1526. 	/*NOTREACHED*/
1527. 	return 0;
1528. }
1529. 
1530. #define MUSE_POT_GAIN_LEVEL 1
1531. #define MUSE_WAN_MAKE_INVISIBLE 2
1532. #define MUSE_POT_INVISIBILITY 3
1533. #define MUSE_POLY_TRAP 4
1534. #define MUSE_WAN_POLYMORPH 5
1535. #define MUSE_POT_SPEED 6
1536. #define MUSE_WAN_SPEED_MONSTER 7
1537. #define MUSE_BULLWHIP 8
1538. #define MUSE_POT_POLYMORPH 9
1539. 
1540. boolean
1541. find_misc(mtmp)
1542. struct monst *mtmp;
1543. {
1544. 	register struct obj *obj;
1545. 	struct permonst *mdat = mtmp->data;
1546. 	int x = mtmp->mx, y = mtmp->my;
1547. 	struct trap *t;
1548. 	int xx, yy;
1549. 	boolean immobile = (mdat->mmove == 0);
1550. 	boolean stuck = (mtmp == u.ustuck);
1551. 
1552. 	m.misc = (struct obj *)0;
1553. 	m.has_misc = 0;
1554. 	if (is_animal(mdat) || mindless(mdat))
1555. 		return 0;
1556. 	if (u.uswallow && stuck) return FALSE;
1557. 
1558. 	/* We arbitrarily limit to times when a player is nearby for the
1559. 	 * same reason as Junior Pac-Man doesn't have energizers eaten until
1560. 	 * you can see them...
1561. 	 */
1562. 	if(dist2(x, y, mtmp->mux, mtmp->muy) > 36)
1563. 		return FALSE;
1564. 
1565. 	if (!stuck && !immobile && !mtmp->cham && monstr[monsndx(mdat)] < 6) {
1566. 	  boolean ignore_boulders = (verysmall(mdat) ||
1567. 				     throws_rocks(mdat) ||
1568. 				     passes_walls(mdat));
1569. 	  for(xx = x-1; xx <= x+1; xx++)
1570. 	    for(yy = y-1; yy <= y+1; yy++)
1571. 		if (isok(xx,yy) && (xx != u.ux || yy != u.uy))
1572. 		    if (mdat != &mons[PM_GRID_BUG] || xx == x || yy == y)
1573. 			if (/* (xx==x && yy==y) || */ !level.monsters[xx][yy])
1574. 			    if ((t = t_at(xx, yy)) != 0 &&
1575. 			      (ignore_boulders || !sobj_at(BOULDER, xx, yy))
1576. 			      && !onscary(xx, yy, mtmp)) {
1577. 				if (t->ttyp == POLY_TRAP) {
1578. 				    trapx = xx;
1579. 				    trapy = yy;
1580. 				    m.has_misc = MUSE_POLY_TRAP;
1581. 				    return TRUE;
1582. 				}
1583. 			    }
1584. 	}
1585. 	if (nohands(mdat))
1586. 		return 0;
1587. 
1588. #define nomore(x) if(m.has_misc==x) continue;
1589. 	for(obj=mtmp->minvent; obj; obj=obj->nobj) {
1590. 		/* Monsters shouldn't recognize cursed items; this kludge is */
1591. 		/* necessary to prevent serious problems though... */
1592. 		if(obj->otyp == POT_GAIN_LEVEL && (!obj->cursed ||
1593. 			    (!mtmp->isgd && !mtmp->isshk && !mtmp->ispriest))) {
1594. 			m.misc = obj;
1595. 			m.has_misc = MUSE_POT_GAIN_LEVEL;
1596. 		}
1597. 		nomore(MUSE_BULLWHIP);
1598. 		if(obj->otyp == BULLWHIP && (MON_WEP(mtmp) == obj) &&
1599. 		   distu(mtmp->mx,mtmp->my)==1 && uwep && !mtmp->mpeaceful) {
1600. 			m.misc = obj;
1601. 			m.has_misc = MUSE_BULLWHIP;
1602. 		}
1603. 		/* Note: peaceful/tame monsters won't make themselves
1604. 		 * invisible unless you can see them.  Not really right, but...
1605. 		 */
1606. 		nomore(MUSE_WAN_MAKE_INVISIBLE);
1607. 		if(obj->otyp == WAN_MAKE_INVISIBLE && obj->spe > 0 &&
1608. 		    !mtmp->minvis && !mtmp->invis_blkd &&
1609. 		    (!mtmp->mpeaceful || See_invisible) &&
1610. 		    (!attacktype(mtmp->data, AT_GAZE) || mtmp->mcan)) {
1611. 			m.misc = obj;
1612. 			m.has_misc = MUSE_WAN_MAKE_INVISIBLE;
1613. 		}
1614. 		nomore(MUSE_POT_INVISIBILITY);
1615. 		if(obj->otyp == POT_INVISIBILITY &&
1616. 		    !mtmp->minvis && !mtmp->invis_blkd &&
1617. 		    (!mtmp->mpeaceful || See_invisible) &&
1618. 		    (!attacktype(mtmp->data, AT_GAZE) || mtmp->mcan)) {
1619. 			m.misc = obj;
1620. 			m.has_misc = MUSE_POT_INVISIBILITY;
1621. 		}
1622. 		nomore(MUSE_WAN_SPEED_MONSTER);
1623. 		if(obj->otyp == WAN_SPEED_MONSTER && obj->spe > 0
1624. 				&& mtmp->mspeed != MFAST && !mtmp->isgd) {
1625. 			m.misc = obj;
1626. 			m.has_misc = MUSE_WAN_SPEED_MONSTER;
1627. 		}
1628. 		nomore(MUSE_POT_SPEED);
1629. 		if(obj->otyp == POT_SPEED && mtmp->mspeed != MFAST
1630. 							&& !mtmp->isgd) {
1631. 			m.misc = obj;
1632. 			m.has_misc = MUSE_POT_SPEED;
1633. 		}
1634. 		nomore(MUSE_WAN_POLYMORPH);
1635. 		if(obj->otyp == WAN_POLYMORPH && obj->spe > 0 && !mtmp->cham
1636. 				&& monstr[monsndx(mdat)] < 6) {
1637. 			m.misc = obj;
1638. 			m.has_misc = MUSE_WAN_POLYMORPH;
1639. 		}
1640. 		nomore(MUSE_POT_POLYMORPH);
1641. 		if(obj->otyp == POT_POLYMORPH && !mtmp->cham
1642. 				&& monstr[monsndx(mdat)] < 6) {
1643. 			m.misc = obj;
1644. 			m.has_misc = MUSE_POT_POLYMORPH;
1645. 		}
1646. 	}
1647. 	return((boolean)(!!m.has_misc));
1648. #undef nomore
1649. }
1650. 
1651. /* type of monster to polymorph into; defaults to one suitable for the
1652.    current level rather than the totally arbitrary choice of newcham() */
1653. static struct permonst *
1654. muse_newcham_mon(mon)
1655. struct monst *mon;
1656. {
1657. 	struct obj *m_armr;
1658. 
1659. 	if ((m_armr = which_armor(mon, W_ARM)) != 0) {
1660. 	    if (Is_dragon_scales(m_armr))
1661. 		return Dragon_scales_to_pm(m_armr);
1662. 	    else if (Is_dragon_mail(m_armr))
1663. 		return Dragon_mail_to_pm(m_armr);
1664. 	}
1665. 	return rndmonst();
1666. }
1667. 
1668. int
1669. use_misc(mtmp)
1670. struct monst *mtmp;
1671. {
1672. 	int i;
1673. 	struct obj *otmp = m.misc;
1674. 	boolean vis, vismon, oseen;
1675. 	char nambuf[BUFSZ];
1676. 
1677. 	if ((i = precheck(mtmp, otmp)) != 0) return i;
1678. 	vis = cansee(mtmp->mx, mtmp->my);
1679. 	vismon = canseemon(mtmp);
1680. 	oseen = otmp && vismon;
1681. 
1682. 	switch(m.has_misc) {
1683. 	case MUSE_POT_GAIN_LEVEL:
1684. 		mquaffmsg(mtmp, otmp);
1685. 		if (otmp->cursed) {
1686. 		    if (Can_rise_up(mtmp->mx, mtmp->my, &u.uz)) {
1687. 			register int tolev = depth(&u.uz)-1;
1688. 			d_level tolevel;
1689. 
1690. 			get_level(&tolevel, tolev);
1691. 			/* insurance against future changes... */
1692. 			if(on_level(&tolevel, &u.uz)) goto skipmsg;
1693. 			if (vismon) {
1694. 			    pline("%s rises up, through the %s!",
1695. 				  Monnam(mtmp), ceiling(mtmp->mx, mtmp->my));
1696. 			    if(!objects[POT_GAIN_LEVEL].oc_name_known
1697. 			      && !objects[POT_GAIN_LEVEL].oc_uname)
1698. 				docall(otmp);
1699. 			}
1700. 			m_useup(mtmp, otmp);
1701. 			migrate_to_level(mtmp, ledger_no(&tolevel),
1702. 					 MIGR_RANDOM, (coord *)0);
1703. 			return 2;
1704. 		    } else {
1705. skipmsg:
1706. 			if (vismon) {
1707. 			    pline("%s looks uneasy.", Monnam(mtmp));
1708. 			    if(!objects[POT_GAIN_LEVEL].oc_name_known
1709. 			      && !objects[POT_GAIN_LEVEL].oc_uname)
1710. 				docall(otmp);
1711. 			}
1712. 			m_useup(mtmp, otmp);
1713. 			return 2;
1714. 		    }
1715. 		}
1716. 		if (vismon) pline("%s seems more experienced.", Monnam(mtmp));
1717. 		if (oseen) makeknown(POT_GAIN_LEVEL);
1718. 		m_useup(mtmp, otmp);
1719. 		if (!grow_up(mtmp,(struct monst *)0)) return 1;
1720. 			/* grew into genocided monster */
1721. 		return 2;
1722. 	case MUSE_WAN_MAKE_INVISIBLE:
1723. 	case MUSE_POT_INVISIBILITY:
1724. 		if (otmp->otyp == WAN_MAKE_INVISIBLE) {
1725. 		    mzapmsg(mtmp, otmp, TRUE);
1726. 		    otmp->spe--;
1727. 		} else
1728. 		    mquaffmsg(mtmp, otmp);
1729. 		/* format monster's name before altering its visibility */
1730. 		Strcpy(nambuf, See_invisible ? Monnam(mtmp) : mon_nam(mtmp));
1731. 		mon_set_minvis(mtmp);
1732. 		if (vismon && mtmp->minvis) {	/* was seen, now invisible */
1733. 		    if (See_invisible)
1734. 			pline("%s body takes on a %s transparency.",
1735. 			      s_suffix(nambuf),
1736. 			      Hallucination ? "normal" : "strange");
1737. 		    else
1738. 			pline("Suddenly you cannot see %s.", nambuf);
1739. 		    if (oseen) makeknown(otmp->otyp);
1740. 		}
1741. 		if (otmp->otyp == POT_INVISIBILITY) {
1742. 		    if (otmp->cursed) you_aggravate(mtmp);
1743. 		    m_useup(mtmp, otmp);
1744. 		}
1745. 		return 2;
1746. 	case MUSE_WAN_SPEED_MONSTER:
1747. 		mzapmsg(mtmp, otmp, TRUE);
1748. 		otmp->spe--;
1749. 		mon_adjust_speed(mtmp, 1, otmp);
1750. 		return 2;
1751. 	case MUSE_POT_SPEED:
1752. 		mquaffmsg(mtmp, otmp);
1753. 		/* note difference in potion effect due to substantially
1754. 		   different methods of maintaining speed ratings:
1755. 		   player's character becomes "very fast" temporarily;
1756. 		   monster becomes "one stage faster" permanently */
1757. 		mon_adjust_speed(mtmp, 1, otmp);
1758. 		m_useup(mtmp, otmp);
1759. 		return 2;
1760. 	case MUSE_WAN_POLYMORPH:
1761. 		mzapmsg(mtmp, otmp, TRUE);
1762. 		otmp->spe--;
1763. 		(void) newcham(mtmp, muse_newcham_mon(mtmp), TRUE);
1764. 		if (oseen) makeknown(WAN_POLYMORPH);
1765. 		return 2;
1766. 	case MUSE_POT_POLYMORPH:
1767. 		mquaffmsg(mtmp, otmp);
1768. 		if (vismon) pline("%s suddenly mutates!", Monnam(mtmp));
1769. 		(void) newcham(mtmp, muse_newcham_mon(mtmp), FALSE);
1770. 		if (oseen) makeknown(POT_POLYMORPH);
1771. 		m_useup(mtmp, otmp);
1772. 		return 2;
1773. 	case MUSE_POLY_TRAP:
1774. 		if (vismon)
1775. 		    pline("%s deliberately %s onto a polymorph trap!",
1776. 			Monnam(mtmp),
1777. 			makeplural(locomotion(mtmp->data, "jump")));
1778. 		if (vis) seetrap(t_at(trapx,trapy));
1779. 
1780. 		/*  don't use rloc() due to worms */
1781. 		remove_monster(mtmp->mx, mtmp->my);
1782. 		newsym(mtmp->mx, mtmp->my);
1783. 		place_monster(mtmp, trapx, trapy);
1784. 		if (mtmp->wormno) worm_move(mtmp);
1785. 		newsym(trapx, trapy);
1786. 
1787. 		(void) newcham(mtmp, (struct permonst *)0, FALSE);
1788. 		return 2;
1789. 	case MUSE_BULLWHIP:
1790. 		/* attempt to disarm hero */
1791. 		if (uwep && !rn2(5)) {
1792. 		    const char *The_whip = vismon ? "The bullwhip" : "A whip";
1793. 		    int where_to = rn2(4);
1794. 		    struct obj *obj = uwep;
1795. 		    const char *hand;
1796. 		    char the_weapon[BUFSZ];
1797. 
1798. 		    Strcpy(the_weapon, the(xname(obj)));
1799. 		    hand = body_part(HAND);
1800. 		    if (bimanual(obj)) hand = makeplural(hand);
1801. 
1802. 		    if (vismon)
1803. 			pline("%s flicks a bullwhip towards your %s!",
1804. 			      Monnam(mtmp), hand);
1805. 		    if (obj->otyp == HEAVY_IRON_BALL) {
1806. 			pline("%s fails to wrap around %s.",
1807. 			      The_whip, the_weapon);
1808. 			return 1;
1809. 		    }
1810. 		    pline("%s wraps around %s you're wielding!",
1811. 			  The_whip, the_weapon);
1812. 		    if (welded(obj)) {
1813. 			pline("%s welded to your %s%c",
1814. 			      !is_plural(obj) ? "It is" : "They are",
1815. 			      hand, !obj->bknown ? '!' : '.');
1816. 			/* obj->bknown = 1; */ /* welded() takes care of this */
1817. 			where_to = 0;
1818. 		    }
1819. 		    if (!where_to) {
1820. 			pline_The("whip slips free.");  /* not `The_whip' */
1821. 			return 1;
1822. 		    } else if (where_to == 3 && hates_silver(mtmp->data) &&
1823. 			    objects[obj->otyp].oc_material == SILVER) {
1824. 			/* this monster won't want to catch a silver
1825. 			   weapon; drop it at hero's feet instead */
1826. 			where_to = 2;
1827. 		    }
1828. 		    freeinv(obj);
1829. 		    uwepgone();
1830. 		    switch (where_to) {
1831. 			case 1:		/* onto floor beneath mon */
1832. 			    pline("%s yanks %s from your %s!", Monnam(mtmp),
1833. 				  the_weapon, hand);
1834. 			    place_object(obj, mtmp->mx, mtmp->my);
1835. 			    break;
1836. 			case 2:		/* onto floor beneath you */
1837. 			    pline("%s yanks %s to the %s!", Monnam(mtmp),
1838. 				  the_weapon, surface(u.ux, u.uy));
1839. 			    dropy(obj);
1840. 			    break;
1841. 			case 3:		/* into mon's inventory */
1842. 			    pline("%s snatches %s!", Monnam(mtmp),
1843. 				  the_weapon);
1844. 			    (void) mpickobj(mtmp,obj);
1845. 			    break;
1846. 		    }
1847. 		    return 1;
1848. 		}
1849. 		return 0;
1850. 	case 0: return 0; /* i.e. an exploded wand */
1851. 	default: impossible("%s wanted to perform action %d?", Monnam(mtmp),
1852. 			m.has_misc);
1853. 		break;
1854. 	}
1855. 	return 0;
1856. }
1857. 
1858. STATIC_OVL void
1859. you_aggravate(mtmp)
1860. struct monst *mtmp;
1861. {
1862. 	pline("For some reason, %s presence is known to you.",
1863. 		s_suffix(noit_mon_nam(mtmp)));
1864. 	cls();
1865. #ifdef CLIPPING
1866. 	cliparound(mtmp->mx, mtmp->my);
1867. #endif
1868. 	show_glyph(mtmp->mx, mtmp->my, mon_to_glyph(mtmp));
1869. 	display_self();
1870. 	You_feel("aggravated at %s.", noit_mon_nam(mtmp));
1871. 	display_nhwindow(WIN_MAP, TRUE);
1872. 	docrt();
1873. 	if (unconscious()) {
1874. 		multi = -1;
1875. 		nomovemsg =
1876. 		      "Aggravated, you are jolted into full consciousness.";
1877. 	}
1878. 	newsym(mtmp->mx,mtmp->my);
1879. 	if (!canspotmon(mtmp))
1880. 	    map_invisible(mtmp->mx, mtmp->my);
1881. }
1882. 
1883. int
1884. rnd_misc_item(mtmp)
1885. struct monst *mtmp;
1886. {
1887. 	struct permonst *pm = mtmp->data;
1888. 	int difficulty = monstr[(monsndx(pm))];
1889. 
1890. 	if(is_animal(pm) || attacktype(pm, AT_EXPL) || mindless(mtmp->data)
1891. 			|| pm->mlet == S_GHOST
1892. # ifdef KOPS
1893. 			|| pm->mlet == S_KOP
1894. # endif
1895. 		) return 0;
1896. 	/* Unlike other rnd_item functions, we only allow _weak_ monsters
1897. 	 * to have this item; after all, the item will be used to strengthen
1898. 	 * the monster and strong monsters won't use it at all...
1899. 	 */
1900. 	if (difficulty < 6 && !rn2(30))
1901. 	    return rn2(6) ? POT_POLYMORPH : WAN_POLYMORPH;
1902. 
1903. 	if (!rn2(40) && !nonliving(pm)) return AMULET_OF_LIFE_SAVING;
1904. 
1905. 	switch (rn2(3)) {
1906. 		case 0:
1907. 			if (mtmp->isgd) return 0;
1908. 			return rn2(6) ? POT_SPEED : WAN_SPEED_MONSTER;
1909. 		case 1:
1910. 			if (mtmp->mpeaceful && !See_invisible) return 0;
1911. 			return rn2(6) ? POT_INVISIBILITY : WAN_MAKE_INVISIBLE;
1912. 		case 2:
1913. 			return POT_GAIN_LEVEL;
1914. 	}
1915. 	/*NOTREACHED*/
1916. 	return 0;
1917. }
1918. 
1919. boolean
1920. searches_for_item(mon, obj)
1921. struct monst *mon;
1922. struct obj *obj;
1923. {
1924. 	int typ = obj->otyp;
1925. 
1926. 	if (is_animal(mon->data) ||
1927. 		mindless(mon->data) ||
1928. 		mon->data == &mons[PM_GHOST])	/* don't loot bones piles */
1929. 	    return FALSE;
1930. 
1931. 	if (typ == WAN_MAKE_INVISIBLE || typ == POT_INVISIBILITY)
1932. 	    return (boolean)(!mon->minvis && !mon->invis_blkd && !attacktype(mon->data, AT_GAZE));
1933. 	if (typ == WAN_SPEED_MONSTER || typ == POT_SPEED)
1934. 	    return (boolean)(mon->mspeed != MFAST);
1935. 
1936. 	switch (obj->oclass) {
1937. 	case WAND_CLASS:
1938. 	    if (obj->spe <= 0)
1939. 		return FALSE;
1940. 	    if (typ == WAN_DIGGING)
1941. 		return (boolean)(!is_floater(mon->data));
1942. 	    if (typ == WAN_POLYMORPH)
1943. 		return (boolean)(monstr[monsndx(mon->data)] < 6);
1944. 	    if (objects[typ].oc_dir == RAY ||
1945. 		    typ == WAN_STRIKING ||
1946. 		    typ == WAN_TELEPORTATION ||
1947. 		    typ == WAN_CREATE_MONSTER)
1948. 		return TRUE;
1949. 	    break;
1950. 	case POTION_CLASS:
1951. 	    if (typ == POT_HEALING ||
1952. 		    typ == POT_EXTRA_HEALING ||
1953. 		    typ == POT_FULL_HEALING ||
1954. 		    typ == POT_POLYMORPH ||
1955. 		    typ == POT_GAIN_LEVEL ||
1956. 		    typ == POT_PARALYSIS ||
1957. 		    typ == POT_SLEEPING ||
1958. 		    typ == POT_ACID ||
1959. 		    typ == POT_CONFUSION)
1960. 		return TRUE;
1961. 	    if (typ == POT_BLINDNESS && !attacktype(mon->data, AT_GAZE))
1962. 		return TRUE;
1963. 	    break;
1964. 	case SCROLL_CLASS:
1965. 	    if (typ == SCR_TELEPORTATION || typ == SCR_CREATE_MONSTER
1966. 		    || typ == SCR_EARTH)
1967. 		return TRUE;
1968. 	    break;
1969. 	case AMULET_CLASS:
1970. 	    if (typ == AMULET_OF_LIFE_SAVING)
1971. 		return (boolean)(!nonliving(mon->data));
1972. 	    if (typ == AMULET_OF_REFLECTION)
1973. 		return TRUE;
1974. 	    break;
1975. 	case TOOL_CLASS:
1976. 	    if (typ == PICK_AXE)
1977. 		return (boolean)needspick(mon->data);
1978. 	    if (typ == UNICORN_HORN)
1979. 		return (boolean)(!obj->cursed && !is_unicorn(mon->data));
1980. 	    if (typ == FROST_HORN || typ == FIRE_HORN)
1981. 		return (obj->spe > 0);
1982. 	    break;
1983. 	case FOOD_CLASS:
1984. 	    if (typ == CORPSE)
1985. 		return (boolean)(((mon->misc_worn_check & W_ARMG) &&
1986. 				    touch_petrifies(&mons[obj->corpsenm])) ||
1987. 				(!resists_ston(mon) &&
1988. 				    (obj->corpsenm == PM_LIZARD ||
1989. 					(acidic(&mons[obj->corpsenm]) &&
1990. 					 obj->corpsenm != PM_GREEN_SLIME))));
1991. 	    if (typ == EGG)
1992. 		return (boolean)(touch_petrifies(&mons[obj->corpsenm]));
1993. 	    break;
1994. 	default:
1995. 	    break;
1996. 	}
1997. 
1998. 	return FALSE;
1999. }
2000. 
2001. boolean
2002. mon_reflects(mon,str)
2003. struct monst *mon;
2004. const char *str;
2005. {
2006. 	struct obj *orefl = which_armor(mon, W_ARMS);
2007. 
2008. 	if (orefl && orefl->otyp == SHIELD_OF_REFLECTION) {
2009. 	    if (str) {
2010. 		pline(str, s_suffix(mon_nam(mon)), "shield");
2011. 		makeknown(SHIELD_OF_REFLECTION);
2012. 	    }
2013. 	    return TRUE;
2014. 	} else if ((orefl = which_armor(mon, W_AMUL)) &&
2015. 				orefl->otyp == AMULET_OF_REFLECTION) {
2016. 	    if (str) {
2017. 		pline(str, s_suffix(mon_nam(mon)), "amulet");
2018. 		makeknown(AMULET_OF_REFLECTION);
2019. 	    }
2020. 	    return TRUE;
2021. 	} else if ((orefl = which_armor(mon, W_ARM)) &&
2022. 		(orefl->otyp == SILVER_DRAGON_SCALES || orefl->otyp == SILVER_DRAGON_SCALE_MAIL)) {
2023. 	    if (str)
2024. 		pline(str, s_suffix(mon_nam(mon)), "armor");
2025. 	    return TRUE;
2026. 	} else if (mon->data == &mons[PM_SILVER_DRAGON] ||
2027. 		mon->data == &mons[PM_CHROMATIC_DRAGON]) {
2028. 	    /* Silver dragons only reflect when mature; babies do not */
2029. 	    if (str)
2030. 		pline(str, s_suffix(mon_nam(mon)), "scales");
2031. 	    return TRUE;
2032. 	}
2033. 	return FALSE;
2034. }
2035. 
2036. boolean
2037. ureflects (fmt, str)
2038. const char *fmt, *str;
2039. {
2040. 	/* Check from outermost to innermost objects */
2041. 	if (EReflecting & W_ARMS) {
2042. 	    if (fmt && str) {
2043. 	    	pline(fmt, str, "shield");
2044. 	    	makeknown(SHIELD_OF_REFLECTION);
2045. 	    }
2046. 	    return TRUE;
2047. 	} else if (EReflecting & W_WEP) {
2048. 	    /* Due to wielded artifact weapon */
2049. 	    if (fmt && str)
2050. 	    	pline(fmt, str, "weapon");
2051. 	    return TRUE;
2052. 	} else if (EReflecting & W_AMUL) {
2053. 	    if (fmt && str) {
2054. 	    	pline(fmt, str, "medallion");
2055. 	    	makeknown(AMULET_OF_REFLECTION);
2056. 	    }
2057. 	    return TRUE;
2058. 	} else if (EReflecting & W_ARM) {
2059. 	    if (fmt && str)
2060. 	    	pline(fmt, str, "armor");
2061. 	    return TRUE;
2062. 	} else if (youmonst.data == &mons[PM_SILVER_DRAGON]) {
2063. 	    if (fmt && str)
2064. 	    	pline(fmt, str, "scales");
2065. 	    return TRUE;
2066. 	}
2067. 	return FALSE;
2068. }
2069. 
2070. 
2071. /* TRUE if the monster ate something */
2072. boolean
2073. munstone(mon, by_you)
2074. struct monst *mon;
2075. boolean by_you;
2076. {
2077. 	struct obj *obj;
2078. 
2079. 	if (resists_ston(mon)) return FALSE;
2080. 	if (mon->meating || !mon->mcanmove || mon->msleeping) return FALSE;
2081. 
2082. 	for(obj = mon->minvent; obj; obj = obj->nobj) {
2083. 	    /* Monsters can also use potions of acid */
2084. 	    if ((obj->otyp == POT_ACID) || (obj->otyp == CORPSE &&
2085. 	    		(obj->corpsenm == PM_LIZARD || (acidic(&mons[obj->corpsenm]) && obj->corpsenm != PM_GREEN_SLIME)))) {
2086. 		mon_consume_unstone(mon, obj, by_you, TRUE);
2087. 		return TRUE;
2088. 	    }
2089. 	}
2090. 	return FALSE;
2091. }
2092. 
2093. STATIC_OVL void
2094. mon_consume_unstone(mon, obj, by_you, stoning)
2095. struct monst *mon;
2096. struct obj *obj;
2097. boolean by_you;
2098. boolean stoning;
2099. {
2100.     int nutrit = (obj->otyp == CORPSE) ? dog_nutrition(mon, obj) : 0;
2101.     /* also sets meating */
2102. 
2103.     if (canseemon(mon)) {
2104. 	long save_quan = obj->quan;
2105. 
2106. 	obj->quan = 1L;
2107. 	pline("%s %ss %s.", Monnam(mon),
2108. 		    (obj->otyp == POT_ACID) ? "quaff" : "eat",
2109. 		    distant_name(obj,doname));
2110. 	obj->quan = save_quan;
2111.     } else if (flags.soundok)
2112. 	You_hear("%s.", (obj->otyp == POT_ACID) ? "drinking" : "chewing");
2113.     m_useup(mon, obj);
2114.     if (((obj->otyp == POT_ACID) || acidic(&mons[obj->corpsenm])) &&
2115. 		    !resists_acid(mon)) {
2116. 	mon->mhp -= rnd(15);
2117. 	pline("%s has a very bad case of stomach acid.",
2118. 	    Monnam(mon));
2119.     }
2120.     if (mon->mhp <= 0) {
2121. 	pline("%s dies!", Monnam(mon));
2122. 	if (by_you) xkilled(mon, 0);
2123. 	else mondead(mon);
2124. 	return;
2125.     }
2126.     if (stoning && canseemon(mon)) {
2127. 	if (Hallucination)
2128.     pline("What a pity - %s just ruined a future piece of art!",
2129. 	    mon_nam(mon));
2130. 	else
2131. 	    pline("%s seems limber!", Monnam(mon));
2132.     }
2133.     if (obj->otyp == CORPSE && obj->corpsenm == PM_LIZARD && mon->mconf) {
2134. 	mon->mconf = 0;
2135. 	if (canseemon(mon))
2136. 	    pline("%s seems steadier now.", Monnam(mon));
2137.     }
2138.     if (mon->mtame && !mon->isminion && nutrit > 0) {
2139. 	struct edog *edog = EDOG(mon);
2140. 
2141. 	if (edog->hungrytime < monstermoves) edog->hungrytime = monstermoves;
2142. 	edog->hungrytime += nutrit;
2143. 	mon->mconf = 0;
2144.     }
2145.     mon->mlstmv = monstermoves; /* it takes a turn */
2146. }
2147. 
2148. /*muse.c*/

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