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Source:NetHack 3.3.0/muse.c

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Below is the full text to muse.c from the source code of NetHack 3.3.0. To link to a particular line, write [[NetHack 3.3.0/muse.c#line123]], for example.

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

The NetHack General Public License applies to screenshots, source code and other content from NetHack.
1.    /*	SCCS Id: @(#)muse.c	3.3	1999/12/03	*/
2.    /*	Copyright (C) 1990 by Ken Arromdee			   */
3.    /* NetHack may be freely redistributed.  See license for details.  */
4.    
5.    /*
6.     * Monster item usage routines.
7.     */
8.    
9.    #include "hack.h"
10.   #include "edog.h"
11.   
12.   extern const int monstr[];
13.   
14.   boolean m_using = FALSE;
15.   
16.   /* Let monsters use magic items.  Arbitrary assumptions: Monsters only use
17.    * scrolls when they can see, monsters know when wands have 0 charges, monsters
18.    * cannot recognize if items are cursed are not, monsters which are confused
19.    * don't know not to read scrolls, etc....
20.    */
21.   
22.   STATIC_DCL int FDECL(precheck, (struct monst *,struct obj *));
23.   STATIC_DCL void FDECL(mzapmsg, (struct monst *,struct obj *,BOOLEAN_P));
24.   STATIC_DCL void FDECL(mreadmsg, (struct monst *,struct obj *));
25.   STATIC_DCL void FDECL(mquaffmsg, (struct monst *,struct obj *));
26.   STATIC_PTR int FDECL(mbhitm, (struct monst *,struct obj *));
27.   STATIC_DCL void FDECL(mbhit,
28.   	(struct monst *,int,int FDECL((*),(MONST_P,OBJ_P)),
29.   	int FDECL((*),(OBJ_P,OBJ_P)),struct obj *));
30.   STATIC_DCL void FDECL(you_aggravate, (struct monst *));
31.   
32.   static struct musable {
33.   	struct obj *offensive;
34.   	struct obj *defensive;
35.   	struct obj *misc;
36.   	int has_offense, has_defense, has_misc;
37.   	/* =0, no capability; otherwise, different numbers.
38.   	 * If it's an object, the object is also set (it's 0 otherwise).
39.   	 */
40.   } m;
41.   static int trapx, trapy;
42.   static boolean zap_oseen;
43.   	/* for wands which use mbhitm and are zapped at players.  We usually
44.   	 * want an oseen local to the function, but this is impossible since the
45.   	 * function mbhitm has to be compatible with the normal zap routines,
46.   	 * and those routines don't remember who zapped the wand.
47.   	 */
48.   
49.   /* Any preliminary checks which may result in the monster being unable to use
50.    * the item.  Returns 0 if nothing happened, 2 if the monster can't do anything
51.    * (i.e. it teleported) and 1 if it's dead.
52.    */
53.   STATIC_OVL int
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, NO_MM_FLAGS);
78.   		if (!mtmp) {
79.   		    if (vis) pline(empty);
80.   		} else {
81.   		    if (vis) {
82.   			pline("As %s opens the bottle, an enormous %s emerges!",
83.   			   mon_nam(mon),
84.   			   Hallucination ? rndmonnam() : (const char *)"ghost");
85.   			pline("%s is frightened to death, and unable to move.",
86.   				Monnam(mon));
87.   		    }
88.   		    mon->mcanmove = 0;
89.   		    mon->mfrozen = 3;
90.   		}
91.   		return 2;
92.   	    }
93.   	    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, NO_MM_FLAGS);
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_OVL 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 %s zap.",
151.  					(distu(mtmp->mx,mtmp->my) <= (BOLT_LIM+1)*(BOLT_LIM+1)) ?
152.  					"nearby" : "distant");
153.  	} else if (self)
154.  		pline("%s zaps %sself with %s!",
155.  		      Monnam(mtmp), him[pronoun_gender(mtmp)], doname(otmp));
156.  	else {
157.  		pline("%s zaps %s!", Monnam(mtmp), an(xname(otmp)));
158.  		stop_occupation();
159.  	}
160.  }
161.  
162.  STATIC_OVL void
163.  mreadmsg(mtmp, otmp)
164.  struct monst *mtmp;
165.  struct obj *otmp;
166.  {
167.  	boolean vismon = canseemon(mtmp);
168.  	char onambuf[BUFSZ];
169.  	short saverole;
170.  	unsigned savebknown;
171.  
172.  	if (!vismon && !flags.soundok)
173.  	    return;		/* no feedback */
174.  
175.  	otmp->dknown = 1;  /* seeing or hearing it read reveals its label */
176.  	/* shouldn't be able to hear curse/bless status of unseen scrolls;
177.  	   for priest characters, bknown will always be set during naming */
178.  	savebknown = otmp->bknown;
179.  	saverole = Role_switch;
180.  	if (!vismon) {
181.  	    otmp->bknown = 0;
182.  	    if (Role_if(PM_PRIEST)) Role_switch = 0;
183.  	}
184.  	Strcpy(onambuf, singular(otmp, doname));
185.  	Role_switch = saverole;
186.  	otmp->bknown = savebknown;
187.  
188.  	if (vismon)
189.  	    pline("%s reads %s!", Monnam(mtmp), onambuf);
190.  	else
191.  	    You_hear("%s reading %s.",
192.  		     an(Hallucination ? rndmonnam() : mtmp->data->mname),
193.  		     onambuf);
194.  
195.  	if (mtmp->mconf)
196.  	    pline("Being confused, %s mispronounces the magic words...",
197.  		  vismon ? mon_nam(mtmp) : he[pronoun_gender(mtmp)]);
198.  }
199.  
200.  STATIC_OVL void
201.  mquaffmsg(mtmp, otmp)
202.  struct monst *mtmp;
203.  struct obj *otmp;
204.  {
205.  	if (canseemon(mtmp)) {
206.  		otmp->dknown = 1;
207.  		pline("%s drinks %s!", Monnam(mtmp), singular(otmp, doname));
208.  	} else
209.  		if (flags.soundok)
210.  			You_hear("a chugging sound.");
211.  }
212.  
213.  /* Defines for various types of stuff.  The order in which monsters prefer
214.   * to use them is determined by the order of the code logic, not the
215.   * numerical order in which they are defined.
216.   */
217.  #define MUSE_SCR_TELEPORTATION 1
218.  #define MUSE_WAN_TELEPORTATION_SELF 2
219.  #define MUSE_POT_HEALING 3
220.  #define MUSE_POT_EXTRA_HEALING 4
221.  #define MUSE_WAN_DIGGING 5
222.  #define MUSE_TRAPDOOR 6
223.  #define MUSE_TELEPORT_TRAP 7
224.  #define MUSE_UPSTAIRS 8
225.  #define MUSE_DOWNSTAIRS 9
226.  #define MUSE_WAN_CREATE_MONSTER 10
227.  #define MUSE_SCR_CREATE_MONSTER 11
228.  #define MUSE_UP_LADDER 12
229.  #define MUSE_DN_LADDER 13
230.  #define MUSE_SSTAIRS 14
231.  #define MUSE_WAN_TELEPORTATION 15
232.  #define MUSE_BUGLE 16
233.  #define MUSE_UNICORN_HORN 17
234.  #define MUSE_POT_FULL_HEALING 18
235.  /*
236.  #define MUSE_INNATE_TPT 9999
237.   * We cannot use this.  Since monsters get unlimited teleportation, if they
238.   * were allowed to teleport at will you could never catch them.  Instead,
239.   * assume they only teleport at random times, despite the inconsistency that if
240.   * you polymorph into one you teleport at will.
241.   */
242.  
243.  /* Select a defensive item/action for a monster.  Returns TRUE iff one is
244.   * found.
245.   */
246.  boolean
247.  find_defensive(mtmp)
248.  struct monst *mtmp;
249.  {
250.  	register struct obj *obj = 0;
251.  	struct trap *t;
252.  	int x=mtmp->mx, y=mtmp->my;
253.  	boolean stuck = (mtmp == u.ustuck);
254.  	boolean immobile = (mtmp->data->mmove == 0);
255.  	int fraction;
256.  
257.  	if (is_animal(mtmp->data) || mindless(mtmp->data))
258.  		return FALSE;
259.  	if(dist2(x, y, mtmp->mux, mtmp->muy) > 25)
260.  		return FALSE;
261.  	if (u.uswallow && stuck) return FALSE;
262.  
263.  	m.defensive = (struct obj *)0;
264.  	m.has_defense = 0;
265.  
266.  	/* since unicorn horns don't get used up, the monster would look
267.  	 * silly trying to use the same cursed horn round after round
268.  	 */
269.  	if (mtmp->mconf || mtmp->mstun || !mtmp->mcansee) {
270.  	    if (!is_unicorn(mtmp->data) && !nohands(mtmp->data)) {
271.  		for(obj = mtmp->minvent; obj; obj = obj->nobj)
272.  		    if (obj->otyp == UNICORN_HORN && !obj->cursed)
273.  			break;
274.  	    }
275.  	    if (obj || is_unicorn(mtmp->data)) {
276.  		m.defensive = obj;
277.  		m.has_defense = MUSE_UNICORN_HORN;
278.  		return TRUE;
279.  	    }
280.  	}
281.  
282.  	/* It so happens there are two unrelated cases when we might want to
283.  	 * check specifically for healing alone.  The first is when the monster
284.  	 * is blind (healing cures blindness).  The second is when the monster
285.  	 * is peaceful; then we don't want to flee the player, and by
286.  	 * coincidence healing is all there is that doesn't involve fleeing.
287.  	 * These would be hard to combine because of the control flow.
288.  	 */
289.  	if (!mtmp->mcansee && !nohands(mtmp->data)) {
290.  	    if ((obj = m_carrying(mtmp, POT_FULL_HEALING)) != 0) {
291.  		m.defensive = obj;
292.  		m.has_defense = MUSE_POT_FULL_HEALING;
293.  		return TRUE;
294.  	    }
295.  	    if ((obj = m_carrying(mtmp, POT_EXTRA_HEALING)) != 0) {
296.  		m.defensive = obj;
297.  		m.has_defense = MUSE_POT_EXTRA_HEALING;
298.  		return TRUE;
299.  	    }
300.  	    if ((obj = m_carrying(mtmp, POT_HEALING)) != 0) {
301.  		m.defensive = obj;
302.  		m.has_defense = MUSE_POT_HEALING;
303.  		return TRUE;
304.  	    }
305.  	}
306.  
307.  	fraction = u.ulevel < 10 ? 5 : u.ulevel < 14 ? 4 : 3;
308.  	if(mtmp->mhp >= mtmp->mhpmax ||
309.  			(mtmp->mhp >= 10 && mtmp->mhp*fraction >= mtmp->mhpmax))
310.  		return FALSE;
311.  
312.  	if (mtmp->mpeaceful) {
313.  	    if (!nohands(mtmp->data)) {
314.  		if ((obj = m_carrying(mtmp, POT_FULL_HEALING)) != 0) {
315.  		    m.defensive = obj;
316.  		    m.has_defense = MUSE_POT_FULL_HEALING;
317.  		    return TRUE;
318.  		}
319.  		if ((obj = m_carrying(mtmp, POT_EXTRA_HEALING)) != 0) {
320.  		    m.defensive = obj;
321.  		    m.has_defense = MUSE_POT_EXTRA_HEALING;
322.  		    return TRUE;
323.  		}
324.  		if ((obj = m_carrying(mtmp, POT_HEALING)) != 0) {
325.  		    m.defensive = obj;
326.  		    m.has_defense = MUSE_POT_HEALING;
327.  		    return TRUE;
328.  		}
329.  	    }
330.  	    return FALSE;
331.  	}
332.  
333.  	if (levl[x][y].typ == STAIRS && !stuck && !immobile) {
334.  		if (x == xdnstair && y == ydnstair && !is_floater(mtmp->data))
335.  			m.has_defense = MUSE_DOWNSTAIRS;
336.  		if (x == xupstair && y == yupstair && ledger_no(&u.uz) != 1)
337.  	/* Unfair to let the monsters leave the dungeon with the Amulet */
338.  	/* (or go to the endlevel since you also need it, to get there) */
339.  			m.has_defense = MUSE_UPSTAIRS;
340.  	} else if (levl[x][y].typ == LADDER && !stuck && !immobile) {
341.  		if (x == xupladder && y == yupladder)
342.  			m.has_defense = MUSE_UP_LADDER;
343.  		if (x == xdnladder && y == ydnladder && !is_floater(mtmp->data))
344.  			m.has_defense = MUSE_DN_LADDER;
345.  	} else if (sstairs.sx && sstairs.sx == x && sstairs.sy == y) {
346.  		m.has_defense = MUSE_SSTAIRS;
347.  	} else if (!stuck && !immobile) {
348.  	/* Note: trapdoors take precedence over teleport traps. */
349.  		int xx, yy;
350.  
351.  		for(xx = x-1; xx <= x+1; xx++) for(yy = y-1; yy <= y+1; yy++)
352.  		if (isok(xx,yy))
353.  		if (xx != u.ux && yy != u.uy)
354.  		if (mtmp->data != &mons[PM_GRID_BUG] || xx == x || yy == y)
355.  		if ((xx==x && yy==y) || !level.monsters[xx][yy])
356.  		if ((t = t_at(xx,yy)) != 0)
357.  		if ((verysmall(mtmp->data) || throws_rocks(mtmp->data) ||
358.  		     passes_walls(mtmp->data)) || !sobj_at(BOULDER, xx, yy))
359.  		if (!onscary(xx,yy,mtmp)) {
360.  			if ((t->ttyp == TRAPDOOR || t->ttyp == HOLE)
361.  				&& !is_floater(mtmp->data)
362.  				&& !mtmp->isshk && !mtmp->isgd
363.  				&& !mtmp->ispriest
364.  				&& Can_fall_thru(&u.uz)
365.  						) {
366.  				trapx = xx;
367.  				trapy = yy;
368.  				m.has_defense = MUSE_TRAPDOOR;
369.  			} else if (t->ttyp == TELEP_TRAP && m.has_defense != MUSE_TRAPDOOR) {
370.  				trapx = xx;
371.  				trapy = yy;
372.  				m.has_defense = MUSE_TELEPORT_TRAP;
373.  			}
374.  		}
375.  	}
376.  
377.  	if (nohands(mtmp->data))	/* can't use objects */
378.  		goto botm;
379.  
380.  	if (is_mercenary(mtmp->data) && (obj = m_carrying(mtmp, BUGLE))) {
381.  		int xx, yy;
382.  		struct monst *mon;
383.  
384.  		/* Distance is arbitrary.  What we really want to do is
385.  		 * have the soldier play the bugle when it sees or
386.  		 * remembers soldiers nearby...
387.  		 */
388.  		for(xx = x-3; xx <= x+3; xx++) for(yy = y-3; yy <= y+3; yy++)
389.  		if (isok(xx,yy))
390.  		if ((mon = m_at(xx,yy)) && is_mercenary(mon->data) &&
391.  				mon->data != &mons[PM_GUARD] &&
392.  				(mon->msleeping || (!mon->mcanmove))) {
393.  			m.defensive = obj;
394.  			m.has_defense = MUSE_BUGLE;
395.  		}
396.  	}
397.  
398.  	/* use immediate physical escape prior to attempting magic */
399.  	if (m.has_defense)	/* stairs, trapdoor or tele-trap, bugle alert */
400.  		goto botm;
401.  
402.  	/* kludge to cut down on trap destruction (particularly portals) */
403.  	t = t_at(x,y);
404.  	if (t && (t->ttyp == PIT || t->ttyp == SPIKED_PIT ||
405.  		  t->ttyp == WEB || t->ttyp == BEAR_TRAP))
406.  		t = 0;		/* ok for monster to dig here */
407.  
408.  #define nomore(x) if(m.has_defense==x) continue;
409.  	for (obj = mtmp->minvent; obj; obj = obj->nobj) {
410.  		/* don't always use the same selection pattern */
411.  		if (m.has_defense && !rn2(3)) break;
412.  
413.  		/* nomore(MUSE_WAN_DIGGING); */
414.  		if (m.has_defense == MUSE_WAN_DIGGING) break;
415.  		if (obj->otyp == WAN_DIGGING && obj->spe > 0 && !stuck && !t
416.  		    && !mtmp->isshk && !mtmp->isgd && !mtmp->ispriest
417.  		    && !is_floater(mtmp->data)
418.  		    /* digging wouldn't be effective; assume they know that */
419.  		    && !(levl[x][y].wall_info & W_NONDIGGABLE)
420.  		    && !(Is_botlevel(&u.uz) || In_endgame(&u.uz))
421.  		    && !(is_ice(x,y) || is_pool(x,y) || is_lava(x,y))) {
422.  			m.defensive = obj;
423.  			m.has_defense = MUSE_WAN_DIGGING;
424.  		}
425.  		nomore(MUSE_WAN_TELEPORTATION_SELF);
426.  		nomore(MUSE_WAN_TELEPORTATION);
427.  		if(obj->otyp == WAN_TELEPORTATION && obj->spe > 0) {
428.  			m.defensive = obj;
429.  			m.has_defense = (mon_has_amulet(mtmp))
430.  				? MUSE_WAN_TELEPORTATION
431.  				: MUSE_WAN_TELEPORTATION_SELF;
432.  		}
433.  		nomore(MUSE_SCR_TELEPORTATION);
434.  		if(obj->otyp == SCR_TELEPORTATION && mtmp->mcansee
435.  		   && haseyes(mtmp->data)
436.  		   && (!obj->cursed ||
437.  		       (!(mtmp->isshk && inhishop(mtmp))
438.  			    && !mtmp->isgd && !mtmp->ispriest))) {
439.  			m.defensive = obj;
440.  			m.has_defense = MUSE_SCR_TELEPORTATION;
441.  		}
442.  		nomore(MUSE_POT_FULL_HEALING);
443.  		if(obj->otyp == POT_FULL_HEALING) {
444.  			m.defensive = obj;
445.  			m.has_defense = MUSE_POT_FULL_HEALING;
446.  		}
447.  		nomore(MUSE_POT_EXTRA_HEALING);
448.  		if(obj->otyp == POT_EXTRA_HEALING) {
449.  			m.defensive = obj;
450.  			m.has_defense = MUSE_POT_EXTRA_HEALING;
451.  		}
452.  		nomore(MUSE_WAN_CREATE_MONSTER);
453.  		if(obj->otyp == WAN_CREATE_MONSTER && obj->spe > 0) {
454.  			m.defensive = obj;
455.  			m.has_defense = MUSE_WAN_CREATE_MONSTER;
456.  		}
457.  		nomore(MUSE_POT_HEALING);
458.  		if(obj->otyp == POT_HEALING) {
459.  			m.defensive = obj;
460.  			m.has_defense = MUSE_POT_HEALING;
461.  		}
462.  		nomore(MUSE_SCR_CREATE_MONSTER);
463.  		if(obj->otyp == SCR_CREATE_MONSTER) {
464.  			m.defensive = obj;
465.  			m.has_defense = MUSE_SCR_CREATE_MONSTER;
466.  		}
467.  	}
468.  botm:	return((boolean)(!!m.has_defense));
469.  #undef nomore
470.  }
471.  
472.  /* Perform a defensive action for a monster.  Must be called immediately
473.   * after find_defensive().  Return values are 0: did something, 1: died,
474.   * 2: did something and can't attack again (i.e. teleported).
475.   */
476.  int
477.  use_defensive(mtmp)
478.  struct monst *mtmp;
479.  {
480.  	int i, fleetim, how = 0;
481.  	struct obj *otmp = m.defensive;
482.  	boolean vis, vismon, oseen;
483.  	const char *mcsa = "%s can see again.";
484.  
485.  	if ((i = precheck(mtmp, otmp)) != 0) return i;
486.  	vis = cansee(mtmp->mx, mtmp->my);
487.  	vismon = canseemon(mtmp);
488.  	oseen = otmp && vismon;
489.  
490.  	/* when using defensive choice to run away, we want monster to avoid
491.  	   rushing right straight back; don't override if already scared */
492.  	fleetim = !mtmp->mflee ? (33 - (30 * mtmp->mhp / mtmp->mhpmax)) : 0;
493.  #define m_flee(m)	if (fleetim && !m->iswiz) \
494.  			{ m->mflee = 1; m->mfleetim = fleetim; }
495.  
496.  	switch(m.has_defense) {
497.  	case MUSE_UNICORN_HORN:
498.  		if (vismon) {
499.  		    if (otmp)
500.  			pline("%s uses a unicorn horn!", Monnam(mtmp));
501.  		    else
502.  			pline("The tip of %s's horn glows!", mon_nam(mtmp));
503.  		}
504.  		if (!mtmp->mcansee) {
505.  		    mtmp->mcansee = 1;
506.  		    mtmp->mblinded = 0;
507.  		    if (vismon) pline(mcsa, Monnam(mtmp));
508.  		} else if (mtmp->mconf || mtmp->mstun) {
509.  		    mtmp->mconf = mtmp->mstun = 0;
510.  		    if (vismon)
511.  			pline("%s seems steadier now.", Monnam(mtmp));
512.  		} else impossible("No need for unicorn horn?");
513.  		return 2;
514.  	case MUSE_BUGLE:
515.  		if (vismon)
516.  			pline("%s plays %s!", Monnam(mtmp), doname(otmp));
517.  		else if (flags.soundok)
518.  			You_hear("a bugle playing reveille!");
519.  		awaken_soldiers();
520.  		return 2;
521.  	case MUSE_WAN_TELEPORTATION_SELF:
522.  		if ((mtmp->isshk && inhishop(mtmp))
523.  		       || mtmp->isgd || mtmp->ispriest) return 2;
524.  		m_flee(mtmp);
525.  		mzapmsg(mtmp, otmp, TRUE);
526.  		otmp->spe--;
527.  		how = WAN_TELEPORTATION;
528.  mon_tele:
529.  		if (tele_restrict(mtmp)) {	/* mysterious force... */
530.  		    if (vismon && how)		/* mentions 'teleport' */
531.  			makeknown(how);
532.  		    return 2;
533.  		}
534.  		if ((
535.  #if 0
536.  			mon_has_amulet(mtmp) ||
537.  #endif
538.  			On_W_tower_level(&u.uz)) && !rn2(3)) {
539.  		    if (vismon)
540.  			pline("%s seems disoriented for a moment.",
541.  				Monnam(mtmp));
542.  		    return 2;
543.  		}
544.  		if (oseen && how) makeknown(how);
545.  		rloc(mtmp);
546.  		return 2;
547.  	case MUSE_WAN_TELEPORTATION:
548.  		zap_oseen = oseen;
549.  		mzapmsg(mtmp, otmp, FALSE);
550.  		otmp->spe--;
551.  		m_using = TRUE;
552.  		mbhit(mtmp,rn1(8,6),mbhitm,bhito,otmp);
553.  		m_using = FALSE;
554.  		return 2;
555.  	case MUSE_SCR_TELEPORTATION:
556.  	    {
557.  		int obj_is_cursed = otmp->cursed;
558.  
559.  		if (mtmp->isshk || mtmp->isgd || mtmp->ispriest) return 2;
560.  		m_flee(mtmp);
561.  		mreadmsg(mtmp, otmp);
562.  		m_useup(mtmp, otmp);	/* otmp might be free'ed */
563.  		how = SCR_TELEPORTATION;
564.  		if (obj_is_cursed || mtmp->mconf) {
565.  			int nlev;
566.  			d_level flev;
567.  
568.  			if (mon_has_amulet(mtmp) || In_endgame(&u.uz)) {
569.  			    if (vismon)
570.  				pline("%s seems very disoriented for a moment.",
571.  					Monnam(mtmp));
572.  			    return 2;
573.  			}
574.  			nlev = random_teleport_level();
575.  			if (nlev == depth(&u.uz)) {
576.  			    if (vismon)
577.  				pline("%s shudders for a moment.",
578.  								Monnam(mtmp));
579.  			    return 2;
580.  			}
581.  			get_level(&flev, nlev);
582.  			migrate_to_level(mtmp, ledger_no(&flev), MIGR_RANDOM,
583.  				(coord *)0);
584.  			if (oseen) makeknown(SCR_TELEPORTATION);
585.  		} else goto mon_tele;
586.  		return 2;
587.  	    }
588.  	case MUSE_WAN_DIGGING:
589.  	    {	struct trap *ttmp;
590.  
591.  		m_flee(mtmp);
592.  		mzapmsg(mtmp, otmp, FALSE);
593.  		otmp->spe--;
594.  		if (oseen) makeknown(WAN_DIGGING);
595.  		if (IS_FURNITURE(levl[mtmp->mx][mtmp->my].typ) ||
596.  		    IS_DRAWBRIDGE(levl[mtmp->mx][mtmp->my].typ) ||
597.  		    (is_drawbridge_wall(mtmp->mx, mtmp->my) >= 0) ||
598.  		    (sstairs.sx && sstairs.sx == mtmp->mx &&
599.  				   sstairs.sy == mtmp->my)) {
600.  			pline_The("digging ray is ineffective.");
601.  			return 2;
602.  		}
603.  		if (!Can_dig_down(&u.uz)) {
604.  		    if(canseemon(mtmp))
605.  			pline_The("floor here is too hard to dig in.");
606.  		    return 2;
607.  		}
608.  		ttmp = maketrap(mtmp->mx, mtmp->my, HOLE);
609.  		if (!ttmp) return 2;
610.  		seetrap(ttmp);
611.  		if (vis) {
612.  		    pline("%s has made a hole in the floor.", Monnam(mtmp));
613.  		    pline("%s %s through...", Monnam(mtmp),
614.  			  is_flyer(mtmp->data) ? "dives" : "falls");
615.  		} else if (flags.soundok)
616.  			You_hear("%s crash through the floor.", something);
617.  		/* we made sure that there is a level for mtmp to go to */
618.  		migrate_to_level(mtmp, ledger_no(&u.uz) + 1,
619.  				 MIGR_RANDOM, (coord *)0);
620.  		return 2;
621.  	    }
622.  	case MUSE_WAN_CREATE_MONSTER:
623.  	    {	coord cc;
624.  		    /* pm: 0 => random, eel => aquatic, croc => amphibious */
625.  		struct permonst *pm = !is_pool(mtmp->mx, mtmp->my) ? 0 :
626.  			     &mons[u.uinwater ? PM_GIANT_EEL : PM_CROCODILE];
627.  		struct monst *mon;
628.  
629.  		if (!enexto(&cc, mtmp->mx, mtmp->my, pm)) return 0;
630.  		mzapmsg(mtmp, otmp, FALSE);
631.  		otmp->spe--;
632.  		mon = makemon((struct permonst *)0, cc.x, cc.y, NO_MM_FLAGS);
633.  		if (mon && canspotmon(mon) && oseen)
634.  		    makeknown(WAN_CREATE_MONSTER);
635.  		return 2;
636.  	    }
637.  	case MUSE_SCR_CREATE_MONSTER:
638.  	    {	coord cc;
639.  		struct permonst *pm = 0, *fish = 0;
640.  		int cnt = 1;
641.  		struct monst *mon;
642.  		boolean known = FALSE;
643.  
644.  		if (!rn2(73)) cnt += rnd(4);
645.  		if (mtmp->mconf || otmp->cursed) cnt += 12;
646.  		if (mtmp->mconf) pm = fish = &mons[PM_ACID_BLOB];
647.  		else if (is_pool(mtmp->mx, mtmp->my))
648.  		    fish = &mons[u.uinwater ? PM_GIANT_EEL : PM_CROCODILE];
649.  		mreadmsg(mtmp, otmp);
650.  		while(cnt--) {
651.  		    /* `fish' potentially gives bias towards water locations;
652.  		       `pm' is what to actually create (0 => random) */
653.  		    if (!enexto(&cc, mtmp->mx, mtmp->my, fish)) break;
654.  		    mon = makemon(pm, cc.x, cc.y, NO_MM_FLAGS);
655.  		    if (mon && canspotmon(mon)) known = TRUE;
656.  		}
657.  		/* The only case where we don't use oseen.  For wands, you
658.  		 * have to be able to see the monster zap the wand to know
659.  		 * what type it is.  For teleport scrolls, you have to see
660.  		 * the monster to know it teleported.
661.  		 */
662.  		if (known)
663.  		    makeknown(SCR_CREATE_MONSTER);
664.  		else if (!objects[SCR_CREATE_MONSTER].oc_name_known
665.  			&& !objects[SCR_CREATE_MONSTER].oc_uname)
666.  		    docall(otmp);
667.  		m_useup(mtmp, otmp);
668.  		return 2;
669.  	    }
670.  	case MUSE_TRAPDOOR:
671.  		/* trapdoors on "bottom" levels of dungeons are rock-drop
672.  		 * trapdoors, not holes in the floor.  We check here for
673.  		 * safety.
674.  		 */
675.  		if (Is_botlevel(&u.uz)) return 0;
676.  		m_flee(mtmp);
677.  		if (vis) {
678.  			struct trap *t;
679.  			t = t_at(trapx,trapy);
680.  			pline("%s %s into a %s!", Monnam(mtmp),
681.  			makeplural(locomotion(mtmp->data, "jump")),
682.  			t->ttyp == TRAPDOOR ? "trapdoor" : "hole");
683.  			seetrap(t_at(trapx,trapy));
684.  		}
685.  
686.  		/*  don't use rloc_to() because worm tails must "move" */
687.  		remove_monster(mtmp->mx, mtmp->my);
688.  		newsym(mtmp->mx, mtmp->my);	/* update old location */
689.  		place_monster(mtmp, trapx, trapy);
690.  		if (mtmp->wormno) worm_move(mtmp);
691.  		newsym(trapx, trapy);
692.  
693.  		migrate_to_level(mtmp, ledger_no(&u.uz) + 1,
694.  				 MIGR_RANDOM, (coord *)0);
695.  		return 2;
696.  	case MUSE_UPSTAIRS:
697.  		/* Monsters without amulets escape the dungeon and are
698.  		 * gone for good when they leave up the up stairs.
699.  		 * Monsters with amulets would reach the endlevel,
700.  		 * which we cannot allow since that would leave the
701.  		 * player stranded.
702.  		 */
703.  		if (ledger_no(&u.uz) == 1) {
704.  			if (mon_has_special(mtmp))
705.  				return 0;
706.  			if (vismon)
707.  			    pline("%s escapes the dungeon!", Monnam(mtmp));
708.  			mongone(mtmp);
709.  			return 2;
710.  		}
711.  		m_flee(mtmp);
712.  		if (Inhell && mon_has_amulet(mtmp) && !rn2(4) &&
713.  			(dunlev(&u.uz) < dunlevs_in_dungeon(&u.uz) - 3)) {
714.  		    if (vismon) pline(
715.       "As %s climbs the stairs, a mysterious force momentarily surrounds %s...",
716.  				     mon_nam(mtmp), him[pronoun_gender(mtmp)]);
717.  		    /* simpler than for the player; this will usually be
718.  		       the Wizard and he'll immediately go right to the
719.  		       upstairs, so there's not much point in having any
720.  		       chance for a random position on the current level */
721.  		    migrate_to_level(mtmp, ledger_no(&u.uz) + 1,
722.  				     MIGR_RANDOM, (coord *)0);
723.  		} else {
724.  		    if (vismon) pline("%s escapes upstairs!", Monnam(mtmp));
725.  		    migrate_to_level(mtmp, ledger_no(&u.uz) - 1,
726.  				     MIGR_STAIRS_DOWN, (coord *)0);
727.  		}
728.  		return 2;
729.  	case MUSE_DOWNSTAIRS:
730.  		m_flee(mtmp);
731.  		if (vismon) pline("%s escapes downstairs!", Monnam(mtmp));
732.  		migrate_to_level(mtmp, ledger_no(&u.uz) + 1,
733.  				 MIGR_STAIRS_UP, (coord *)0);
734.  		return 2;
735.  	case MUSE_UP_LADDER:
736.  		m_flee(mtmp);
737.  		if (vismon) pline("%s escapes up the ladder!", Monnam(mtmp));
738.  		migrate_to_level(mtmp, ledger_no(&u.uz) - 1,
739.  				 MIGR_LADDER_DOWN, (coord *)0);
740.  		return 2;
741.  	case MUSE_DN_LADDER:
742.  		m_flee(mtmp);
743.  		if (vismon) pline("%s escapes down the ladder!", Monnam(mtmp));
744.  		migrate_to_level(mtmp, ledger_no(&u.uz) + 1,
745.  				 MIGR_LADDER_UP, (coord *)0);
746.  		return 2;
747.  	case MUSE_SSTAIRS:
748.  		m_flee(mtmp);
749.  		/* the stairs leading up from the 1st level are */
750.  		/* regular stairs, not sstairs.			*/
751.  		if (sstairs.up) {
752.  			if (vismon)
753.  			    pline("%s escapes upstairs!", Monnam(mtmp));
754.  			if(Inhell) {
755.  			    migrate_to_level(mtmp, ledger_no(&sstairs.tolev),
756.  					     MIGR_RANDOM, (coord *)0);
757.  			    return 2;
758.  			}
759.  		} else	if (vismon)
760.  		    pline("%s escapes downstairs!", Monnam(mtmp));
761.  		migrate_to_level(mtmp, ledger_no(&sstairs.tolev),
762.  				 MIGR_SSTAIRS, (coord *)0);
763.  		return 2;
764.  	case MUSE_TELEPORT_TRAP:
765.  		m_flee(mtmp);
766.  		if (vis) {
767.  			pline("%s %s onto a teleport trap!", Monnam(mtmp),
768.  				makeplural(locomotion(mtmp->data, "jump")));
769.  			seetrap(t_at(trapx,trapy));
770.  		}
771.  		/*  don't use rloc_to() because worm tails must "move" */
772.  		remove_monster(mtmp->mx, mtmp->my);
773.  		newsym(mtmp->mx, mtmp->my);	/* update old location */
774.  		place_monster(mtmp, trapx, trapy);
775.  		if (mtmp->wormno) worm_move(mtmp);
776.  		newsym(trapx, trapy);
777.  
778.  		goto mon_tele;
779.  	case MUSE_POT_HEALING:
780.  		mquaffmsg(mtmp, otmp);
781.  		i = d(6 + 2 * bcsign(otmp), 4);
782.  		mtmp->mhp += i;
783.  		if (mtmp->mhp > mtmp->mhpmax) mtmp->mhp = ++mtmp->mhpmax;
784.  		if (!otmp->cursed && !mtmp->mcansee) {
785.  			mtmp->mcansee = 1;
786.  			mtmp->mblinded = 0;
787.  			if (vismon) pline(mcsa, Monnam(mtmp));
788.  		}
789.  		if (vismon) pline("%s looks better.", Monnam(mtmp));
790.  		if (oseen) makeknown(POT_HEALING);
791.  		m_useup(mtmp, otmp);
792.  		return 2;
793.  	case MUSE_POT_EXTRA_HEALING:
794.  		mquaffmsg(mtmp, otmp);
795.  		i = d(6 + 2 * bcsign(otmp), 8);
796.  		mtmp->mhp += i;
797.  		if (mtmp->mhp > mtmp->mhpmax)
798.  			mtmp->mhp = (mtmp->mhpmax += (otmp->blessed ? 5 : 2));
799.  		if (!mtmp->mcansee) {
800.  			mtmp->mcansee = 1;
801.  			mtmp->mblinded = 0;
802.  			if (vismon) pline(mcsa, Monnam(mtmp));
803.  		}
804.  		if (vismon) pline("%s looks much better.", Monnam(mtmp));
805.  		if (oseen) makeknown(POT_EXTRA_HEALING);
806.  		m_useup(mtmp, otmp);
807.  		return 2;
808.  	case MUSE_POT_FULL_HEALING:
809.  		mquaffmsg(mtmp, otmp);
810.  		mtmp->mhp = (mtmp->mhpmax += (otmp->blessed ? 8 : 4));
811.  		if (!mtmp->mcansee) {
812.  			mtmp->mcansee = 1;
813.  			mtmp->mblinded = 0;
814.  			if (vismon) pline(mcsa, Monnam(mtmp));
815.  		}
816.  		if (vismon) pline("%s looks completely healed.", Monnam(mtmp));
817.  		if (oseen) makeknown(POT_FULL_HEALING);
818.  		m_useup(mtmp, otmp);
819.  		return 2;
820.  	case 0: return 0; /* i.e. an exploded wand */
821.  	default: impossible("%s wanted to perform action %d?", Monnam(mtmp),
822.  			m.has_defense);
823.  		break;
824.  	}
825.  	return 0;
826.  #undef m_flee
827.  }
828.  
829.  int
830.  rnd_defensive_item(mtmp)
831.  struct monst *mtmp;
832.  {
833.  	struct permonst *pm = mtmp->data;
834.  	int difficulty = monstr[(monsndx(pm))];
835.  
836.  	if(is_animal(pm) || attacktype(pm, AT_EXPL) || mindless(mtmp->data)
837.  			|| pm->mlet == S_GHOST
838.  # ifdef KOPS
839.  			|| pm->mlet == S_KOP
840.  # endif
841.  		) return 0;
842.  	switch (rn2(8 + (difficulty > 3) + (difficulty > 6) +
843.  				(difficulty > 8))) {
844.  		case 6: case 9:
845.  			if (!rn2(3)) return WAN_TELEPORTATION;
846.  			/* else FALLTHRU */
847.  		case 0: case 1:
848.  			return SCR_TELEPORTATION;
849.  		case 8: case 10:
850.  			if (!rn2(3)) return WAN_CREATE_MONSTER;
851.  			/* else FALLTHRU */
852.  		case 2: return SCR_CREATE_MONSTER;
853.  		case 3: return POT_HEALING;
854.  		case 4: return POT_EXTRA_HEALING;
855.  		case 5: return POT_FULL_HEALING;
856.  		case 7: if (is_floater(pm) || mtmp->isshk || mtmp->isgd
857.  						|| mtmp->ispriest
858.  									)
859.  				return 0;
860.  			else
861.  				return WAN_DIGGING;
862.  	}
863.  	/*NOTREACHED*/
864.  	return 0;
865.  }
866.  
867.  #define MUSE_WAN_DEATH 1
868.  #define MUSE_WAN_SLEEP 2
869.  #define MUSE_WAN_FIRE 3
870.  #define MUSE_WAN_COLD 4
871.  #define MUSE_WAN_LIGHTNING 5
872.  #define MUSE_WAN_MAGIC_MISSILE 6
873.  #define MUSE_WAN_STRIKING 7
874.  #define MUSE_SCR_FIRE 8
875.  #define MUSE_POT_PARALYSIS 9
876.  #define MUSE_POT_BLINDNESS 10
877.  #define MUSE_POT_CONFUSION 11
878.  #define MUSE_FROST_HORN 12
879.  #define MUSE_FIRE_HORN 13
880.  #define MUSE_POT_ACID 14
881.  /*#define MUSE_WAN_TELEPORTATION 15*/
882.  #define MUSE_POT_SLEEPING 16
883.  #define MUSE_SCR_EARTH 17
884.  
885.  /* Select an offensive item/action for a monster.  Returns TRUE iff one is
886.   * found.
887.   */
888.  boolean
889.  find_offensive(mtmp)
890.  struct monst *mtmp;
891.  {
892.  	register struct obj *obj;
893.  	boolean ranged_stuff = lined_up(mtmp);
894.  	boolean reflection_skip = (Reflecting && rn2(2));
895.  
896.  	m.offensive = (struct obj *)0;
897.  	m.has_offense = 0;
898.  	if (mtmp->mpeaceful || is_animal(mtmp->data) ||
899.  				mindless(mtmp->data) || nohands(mtmp->data))
900.  		return FALSE;
901.  	if (u.uswallow) return FALSE;
902.  	if (in_your_sanctuary(mtmp, 0, 0)) return FALSE;
903.  	if (dmgtype(mtmp->data, AD_HEAL) && !uwep
904.  #ifdef TOURIST
905.  	    && !uarmu
906.  #endif
907.  	    && !uarm && !uarmh && !uarms && !uarmg && !uarmc && !uarmf)
908.  		return FALSE;
909.  
910.  	if (!ranged_stuff) return FALSE;
911.  #define nomore(x) if(m.has_offense==x) continue;
912.  	for(obj=mtmp->minvent; obj; obj=obj->nobj) {
913.  		/* nomore(MUSE_WAN_DEATH); */
914.  		if (!reflection_skip) {
915.  		    if(obj->otyp == WAN_DEATH && obj->spe > 0) {
916.  			m.offensive = obj;
917.  			m.has_offense = MUSE_WAN_DEATH;
918.  		    }
919.  		    nomore(MUSE_WAN_SLEEP);
920.  		    if(obj->otyp == WAN_SLEEP && obj->spe > 0 && multi >= 0) {
921.  			m.offensive = obj;
922.  			m.has_offense = MUSE_WAN_SLEEP;
923.  		    }
924.  		    nomore(MUSE_WAN_FIRE);
925.  		    if(obj->otyp == WAN_FIRE && obj->spe > 0) {
926.  			m.offensive = obj;
927.  			m.has_offense = MUSE_WAN_FIRE;
928.  		    }
929.  		    nomore(MUSE_FIRE_HORN);
930.  		    if(obj->otyp == FIRE_HORN && obj->spe > 0) {
931.  			m.offensive = obj;
932.  			m.has_offense = MUSE_FIRE_HORN;
933.  		    }
934.  		    nomore(MUSE_WAN_COLD);
935.  		    if(obj->otyp == WAN_COLD && obj->spe > 0) {
936.  			m.offensive = obj;
937.  			m.has_offense = MUSE_WAN_COLD;
938.  		    }
939.  		    nomore(MUSE_FROST_HORN);
940.  		    if(obj->otyp == FROST_HORN && obj->spe > 0) {
941.  			m.offensive = obj;
942.  			m.has_offense = MUSE_FROST_HORN;
943.  		    }
944.  		    nomore(MUSE_WAN_LIGHTNING);
945.  		    if(obj->otyp == WAN_LIGHTNING && obj->spe > 0) {
946.  			m.offensive = obj;
947.  			m.has_offense = MUSE_WAN_LIGHTNING;
948.  		    }
949.  		    nomore(MUSE_WAN_MAGIC_MISSILE);
950.  		    if(obj->otyp == WAN_MAGIC_MISSILE && obj->spe > 0) {
951.  			m.offensive = obj;
952.  			m.has_offense = MUSE_WAN_MAGIC_MISSILE;
953.  		    }
954.  		}
955.  		nomore(MUSE_WAN_STRIKING);
956.  		if(obj->otyp == WAN_STRIKING && obj->spe > 0) {
957.  			m.offensive = obj;
958.  			m.has_offense = MUSE_WAN_STRIKING;
959.  		}
960.  		nomore(MUSE_POT_PARALYSIS);
961.  		if(obj->otyp == POT_PARALYSIS && multi >= 0) {
962.  			m.offensive = obj;
963.  			m.has_offense = MUSE_POT_PARALYSIS;
964.  		}
965.  		nomore(MUSE_POT_BLINDNESS);
966.  		if(obj->otyp == POT_BLINDNESS) {
967.  			m.offensive = obj;
968.  			m.has_offense = MUSE_POT_BLINDNESS;
969.  		}
970.  		nomore(MUSE_POT_CONFUSION);
971.  		if(obj->otyp == POT_CONFUSION) {
972.  			m.offensive = obj;
973.  			m.has_offense = MUSE_POT_CONFUSION;
974.  		}
975.  		nomore(MUSE_POT_SLEEPING);
976.  		if(obj->otyp == POT_SLEEPING) {
977.  			m.offensive = obj;
978.  			m.has_offense = MUSE_POT_SLEEPING;
979.  		}
980.  		nomore(MUSE_POT_ACID);
981.  		if(obj->otyp == POT_ACID) {
982.  			m.offensive = obj;
983.  			m.has_offense = MUSE_POT_ACID;
984.  		}
985.  		/* we can safely put this scroll here since the locations that
986.  		 * are in a 1 square radius are a subset of the locations that
987.  		 * are in wand range
988.  		 */
989.  		{
990.  		    struct obj *helmet = which_armor(mtmp, W_ARMH);
991.  
992.  		    nomore(MUSE_SCR_EARTH);
993.  		    if (obj->otyp == SCR_EARTH
994.  		       && ((helmet && is_metallic(helmet)) || mtmp->mconf || amorphous(mtmp->data) || passes_walls(mtmp->data) || noncorporeal(mtmp->data) || unsolid(mtmp->data) || !rn2(10))
995.  		       && dist2(mtmp->mx,mtmp->my,mtmp->mux,mtmp->muy) <= 2
996.  		       && mtmp->mcansee && haseyes(mtmp->data)
997.  #ifdef REINCARNATION
998.  		       && !Is_rogue_level(&u.uz)
999.  #endif
1000. 		       && (!In_endgame(&u.uz) || Is_earthlevel(&u.uz))) {
1001. 			    m.offensive = obj;
1002. 			    m.has_offense = MUSE_SCR_EARTH;
1003. 		    }
1004. 		}
1005. #if 0
1006. 		nomore(MUSE_SCR_FIRE);
1007. 		if (obj->otyp == SCR_FIRE && resists_fire(mtmp)
1008. 		   && dist2(mtmp->mx,mtmp->my,mtmp->mux,mtmp->muy) <= 2
1009. 		   && mtmp->mcansee && haseyes(mtmp->data)) {
1010. 			m.offensive = obj;
1011. 			m.has_offense = MUSE_SCR_FIRE;
1012. 		}
1013. #endif
1014. 	}
1015. 	return((boolean)(!!m.has_offense));
1016. #undef nomore
1017. }
1018. 
1019. STATIC_PTR
1020. int
1021. mbhitm(mtmp, otmp)
1022. register struct monst *mtmp;
1023. register struct obj *otmp;
1024. {
1025. 	int tmp;
1026. 
1027. 	boolean reveal_invis = FALSE;
1028. 	if (mtmp != &youmonst) {
1029. 		mtmp->msleeping = 0;
1030. 		if (mtmp->m_ap_type) seemimic(mtmp);
1031. 	}
1032. 	switch(otmp->otyp) {
1033. 	case WAN_STRIKING:
1034. 		reveal_invis = TRUE;
1035. 		if (mtmp == &youmonst) {
1036. 			if (zap_oseen) makeknown(WAN_STRIKING);
1037. 			if (rnd(20) < 10 + u.uac) {
1038. 				pline_The("wand hits you!");
1039. 				tmp = d(2,12);
1040. 				if(Half_spell_damage) tmp = (tmp+1) / 2;
1041. 				losehp(tmp, "wand", KILLED_BY_AN);
1042. 			} else pline_The("wand misses you.");
1043. 			stop_occupation();
1044. 			nomul(0);
1045. 		} else if (rnd(20) < 10+find_mac(mtmp)) {
1046. 			tmp = d(2,12);
1047. 			if(Half_spell_damage) tmp = (tmp+1) / 2;
1048. 			hit("wand", mtmp, exclam(tmp));
1049. 			(void) resist(mtmp, otmp->oclass, tmp, TELL);
1050. 			if (cansee(mtmp->mx, mtmp->my) && zap_oseen)
1051. 				makeknown(WAN_STRIKING);
1052. 		} else {
1053. 			miss("wand", mtmp);
1054. 			if (cansee(mtmp->mx, mtmp->my) && zap_oseen)
1055. 				makeknown(WAN_STRIKING);
1056. 		}
1057. 		break;
1058. 	case WAN_TELEPORTATION:
1059. 		if (mtmp == &youmonst) {
1060. 			if (zap_oseen) makeknown(WAN_TELEPORTATION);
1061. 			tele();
1062. 		} else {
1063. 			/* for consistency with zap.c, don't identify */
1064. 			if (mtmp->ispriest &&
1065. 				*in_rooms(mtmp->mx, mtmp->my, TEMPLE)) {
1066. 			    if (cansee(mtmp->mx, mtmp->my))
1067. 				pline("%s resists the magic!", Monnam(mtmp));
1068. 			    mtmp->msleeping = 0;
1069. 			    if(mtmp->m_ap_type) seemimic(mtmp);
1070. 			} else
1071. 			    rloc(mtmp);
1072. 		}
1073. 		break;
1074. 	case WAN_CANCELLATION:
1075. 	case SPE_CANCELLATION:
1076. 		cancel_monst(mtmp, otmp, FALSE, TRUE, FALSE);
1077. 		break;
1078. 	}
1079. 	if (reveal_invis) {
1080. 	    if (mtmp->mhp > 0 && cansee(bhitpos.x,bhitpos.y)
1081. 							&& !canspotmon(mtmp))
1082. 		map_invisible(bhitpos.x, bhitpos.y);
1083. 	}
1084. 	return 0;
1085. }
1086. 
1087. /* A modified bhit() for monsters.  Based on bhit() in zap.c.  Unlike
1088.  * buzz(), bhit() doesn't take into account the possibility of a monster
1089.  * zapping you, so we need a special function for it.  (Unless someone wants
1090.  * to merge the two functions...)
1091.  */
1092. STATIC_OVL void
1093. mbhit(mon,range,fhitm,fhito,obj)
1094. struct monst *mon;			/* monster shooting the wand */
1095. register int range;			/* direction and range */
1096. int FDECL((*fhitm),(MONST_P,OBJ_P));
1097. int FDECL((*fhito),(OBJ_P,OBJ_P));	/* fns called when mon/obj hit */
1098. struct obj *obj;			/* 2nd arg to fhitm/fhito */
1099. {
1100. 	register struct monst *mtmp;
1101. 	register struct obj *otmp;
1102. 	register uchar typ;
1103. 	int ddx, ddy;
1104. 
1105. 	bhitpos.x = mon->mx;
1106. 	bhitpos.y = mon->my;
1107. 	ddx = sgn(mon->mux - mon->mx);
1108. 	ddy = sgn(mon->muy - mon->my);
1109. 
1110. 	while(range-- > 0) {
1111. 		int x,y;
1112. 
1113. 		bhitpos.x += ddx;
1114. 		bhitpos.y += ddy;
1115. 		x = bhitpos.x; y = bhitpos.y;
1116. 
1117. 		if (!isok(x,y)) {
1118. 		    bhitpos.x -= ddx;
1119. 		    bhitpos.y -= ddy;
1120. 		    break;
1121. 		}
1122. 		if (find_drawbridge(&x,&y))
1123. 		    switch (obj->otyp) {
1124. 			case WAN_STRIKING:
1125. 			    destroy_drawbridge(x,y);
1126. 		    }
1127. 		if(bhitpos.x==u.ux && bhitpos.y==u.uy) {
1128. 			(*fhitm)(&youmonst, obj);
1129. 			range -= 3;
1130. 		} else if(MON_AT(bhitpos.x, bhitpos.y)){
1131. 			mtmp = m_at(bhitpos.x,bhitpos.y);
1132. 			if (cansee(bhitpos.x,bhitpos.y) && !canspotmon(mtmp))
1133. 			    map_invisible(bhitpos.x, bhitpos.y);
1134. 			(*fhitm)(mtmp, obj);
1135. 			range -= 3;
1136. 		}
1137. 		/* modified by GAN to hit all objects */
1138. 		if(fhito){
1139. 		    int hitanything = 0;
1140. 		    register struct obj *next_obj;
1141. 
1142. 		    for(otmp = level.objects[bhitpos.x][bhitpos.y];
1143. 							otmp; otmp = next_obj) {
1144. 			/* Fix for polymorph bug, Tim Wright */
1145. 			next_obj = otmp->nexthere;
1146. 			hitanything += (*fhito)(otmp, obj);
1147. 		    }
1148. 		    if(hitanything)	range--;
1149. 		}
1150. 		typ = levl[bhitpos.x][bhitpos.y].typ;
1151. 		if(IS_DOOR(typ) || typ == SDOOR) {
1152. 		    switch (obj->otyp) {
1153. 			/* note: monsters don't use opening or locking magic
1154. 			   at present, but keep these as placeholders */
1155. 			case WAN_OPENING:
1156. 			case WAN_LOCKING:
1157. 			case WAN_STRIKING:
1158. 			    if (doorlock(obj, bhitpos.x, bhitpos.y)) {
1159. 				makeknown(obj->otyp);
1160. 				/* if a shop door gets broken, add it to
1161. 				   the shk's fix list (no cost to player) */
1162. 				if (levl[bhitpos.x][bhitpos.y].doormask ==
1163. 					D_BROKEN &&
1164. 				    *in_rooms(bhitpos.x, bhitpos.y, SHOPBASE))
1165. 				    add_damage(bhitpos.x, bhitpos.y, 0L);
1166. 			    }
1167. 			    break;
1168. 		    }
1169. 		}
1170. 		if(!ZAP_POS(typ) || (IS_DOOR(typ) &&
1171. 		   (levl[bhitpos.x][bhitpos.y].doormask & (D_LOCKED | D_CLOSED)))
1172. 		  ) {
1173. 			bhitpos.x -= ddx;
1174. 			bhitpos.y -= ddy;
1175. 			break;
1176. 		}
1177. 	}
1178. }
1179. 
1180. /* Perform an offensive action for a monster.  Must be called immediately
1181.  * after find_offensive().  Return values are same as use_defensive().
1182.  */
1183. int
1184. use_offensive(mtmp)
1185. struct monst *mtmp;
1186. {
1187. 	int i;
1188. 	struct obj *otmp = m.offensive;
1189. 	boolean oseen;
1190. 
1191. 	/* offensive potions are not drunk, they're thrown */
1192. 	if (otmp->oclass != POTION_CLASS && (i = precheck(mtmp, otmp)) != 0)
1193. 		return i;
1194. 	oseen = otmp && canseemon(mtmp);
1195. 
1196. 	switch(m.has_offense) {
1197. 	case MUSE_WAN_DEATH:
1198. 	case MUSE_WAN_SLEEP:
1199. 	case MUSE_WAN_FIRE:
1200. 	case MUSE_WAN_COLD:
1201. 	case MUSE_WAN_LIGHTNING:
1202. 	case MUSE_WAN_MAGIC_MISSILE:
1203. 		mzapmsg(mtmp, otmp, FALSE);
1204. 		otmp->spe--;
1205. 		if (oseen) makeknown(otmp->otyp);
1206. 		m_using = TRUE;
1207. 		buzz((int)(-30 - (otmp->otyp - WAN_MAGIC_MISSILE)),
1208. 			(otmp->otyp == WAN_MAGIC_MISSILE) ? 2 : 6,
1209. 			mtmp->mx, mtmp->my,
1210. 			sgn(mtmp->mux-mtmp->mx), sgn(mtmp->muy-mtmp->my));
1211. 		m_using = FALSE;
1212. 		return (mtmp->mhp <= 0) ? 1 : 2;
1213. 	case MUSE_FIRE_HORN:
1214. 	case MUSE_FROST_HORN:
1215. 		if (oseen) {
1216. 			makeknown(otmp->otyp);
1217. 			pline("%s plays a %s!", Monnam(mtmp), xname(otmp));
1218. 		} else
1219. 			You_hear("a horn being played.");
1220. 		otmp->spe--;
1221. 		m_using = TRUE;
1222. 		buzz(-30 - ((otmp->otyp==FROST_HORN) ? AD_COLD-1 : AD_FIRE-1),
1223. 			rn1(6,6), mtmp->mx, mtmp->my,
1224. 			sgn(mtmp->mux-mtmp->mx), sgn(mtmp->muy-mtmp->my));
1225. 		m_using = FALSE;
1226. 		return (mtmp->mhp <= 0) ? 1 : 2;
1227. 	case MUSE_WAN_TELEPORTATION:
1228. 	case MUSE_WAN_STRIKING:
1229. 		zap_oseen = oseen;
1230. 		mzapmsg(mtmp, otmp, FALSE);
1231. 		otmp->spe--;
1232. 		m_using = TRUE;
1233. 		mbhit(mtmp,rn1(8,6),mbhitm,bhito,otmp);
1234. 		m_using = FALSE;
1235. 		return 2;
1236. 	case MUSE_SCR_EARTH:
1237. 	    {
1238. 		/* TODO: handle steeds */
1239. 	    	register int x, y;
1240. 		/* don't use monster fields after killing it */
1241. 		boolean confused = (mtmp->mconf ? TRUE : FALSE);
1242. 		int mmx = mtmp->mx, mmy = mtmp->my;
1243. 
1244. 		mreadmsg(mtmp, otmp);
1245. 	    	/* Identify the scroll */
1246. 		if (canspotmon(mtmp)) {
1247. 		    pline_The("%s rumbles %s %s!", ceiling(mtmp->mx, mtmp->my),
1248. 	    			otmp->blessed ? "around" : "above",
1249. 				mon_nam(mtmp));
1250. 		    if (oseen) makeknown(otmp->otyp);
1251. 		} else if (cansee(mtmp->mx, mtmp->my)) {
1252. 		    pline_The("%s rumbles in the middle of nowhere!",
1253. 			ceiling(mtmp->mx, mtmp->my));
1254. 		    if (mtmp->minvis)
1255. 			map_invisible(mtmp->mx, mtmp->my);
1256. 		    if (oseen) makeknown(otmp->otyp);
1257. 		}
1258. 
1259. 	    	/* Loop through the surrounding squares */
1260. 	    	for (x = mmx-1; x <= mmx+1; x++) {
1261. 	    	    for (y = mmy-1; y <= mmy+1; y++) {
1262. 	    	    	/* Is this a suitable spot? */
1263. 	    	    	if (isok(x, y) && !closed_door(x, y) &&
1264. 	    	    			!IS_ROCK(levl[x][y].typ) &&
1265. 	    	    			!IS_AIR(levl[x][y].typ) &&
1266. 	    	    			(((x == mmx) && (y == mmy)) ?
1267. 	    	    			    !otmp->blessed : !otmp->cursed) &&
1268. 					(x != u.ux || y != u.uy)) {
1269. 			    register struct obj *otmp2;
1270. 			    register struct monst *mtmp2;
1271. 
1272. 	    	    	    /* Make the object(s) */
1273. 	    	    	    otmp2 = mksobj(confused ? ROCK : BOULDER,
1274. 	    	    	    		FALSE, FALSE);
1275. 	    	    	    if (!otmp2) continue;  /* Shouldn't happen */
1276. 	    	    	    otmp2->quan = confused ? rn1(5,2) : 1;
1277. 	    	    	    otmp2->owt = weight(otmp2);
1278. 
1279. 	    	    	    /* Find the monster here (might be same as mtmp) */
1280. 	    	    	    mtmp2 = m_at(x, y);
1281. 	    	    	    if (mtmp2 && !amorphous(mtmp2->data) &&
1282. 	    	    	    		!passes_walls(mtmp2->data) &&
1283. 	    	    	    		!noncorporeal(mtmp2->data) &&
1284. 	    	    	    		!unsolid(mtmp2->data)) {
1285. 				struct obj *helmet = which_armor(mtmp2, W_ARMH);
1286. 				int mdmg;
1287. 
1288. 				if (cansee(mtmp2->mx, mtmp2->my)) {
1289. 				    pline("%s is hit by %s!", Monnam(mtmp2),
1290. 	    	    	    			doname(otmp2));
1291. 				    if (mtmp2->minvis && !canspotmon(mtmp2))
1292. 					map_invisible(mtmp2->mx, mtmp2->my);
1293. 				}
1294. 	    	    	    	mdmg = dmgval(otmp2, mtmp2) * otmp2->quan;
1295. 				if (helmet) {
1296. 				    if(is_metallic(helmet)) {
1297. 					if (canspotmon(mtmp2))
1298. 					    pline("Fortunately, %s is wearing a hard helmet.", mon_nam(mtmp2));
1299. 					else if (flags.soundok)
1300. 					    You_hear("a clanging sound.");
1301. 					if (mdmg > 2) mdmg = 2;
1302. 				    } else {
1303. 					if (canspotmon(mtmp2))
1304. 					    pline("%s's %s does not protect %s.",
1305. 						Monnam(mtmp2), xname(helmet),
1306. 						him[pronoun_gender(mtmp2)]);
1307. 				    }
1308. 				}
1309. 	    	    	    	mtmp2->mhp -= mdmg;
1310. 	    	    	    	if (mtmp2->mhp <= 0) {
1311. 				    pline("%s is killed.", Monnam(mtmp2));
1312. 	    	    	    	    mondied(mtmp2);
1313. 				}
1314. 	    	    	    }
1315. 	    	    	    /* Drop the rock/boulder to the floor */
1316. 	    	    	    if (!flooreffects(otmp2, x, y, "fall")) {
1317. 	    	    	    	place_object(otmp2, x, y);
1318. 	    	    	    	stackobj(otmp2);
1319. 	    	    	    	newsym(x, y);  /* map the rock */
1320. 	    	    	    }
1321. 	    	    	}
1322. 		    }
1323. 		}
1324. 		m_useup(mtmp, otmp);
1325. 		/* Attack the player */
1326. 		if (dist2(mmx, mmy, u.ux, u.uy) == 1 && !otmp->cursed) {
1327. 		    int dmg;
1328. 		    struct obj *otmp2;
1329. 
1330. 		    /* Okay, _you_ write this without repeating the code */
1331. 		    otmp2 = mksobj(confused ? ROCK : BOULDER,
1332. 				FALSE, FALSE);
1333. 		    if (!otmp2) break;
1334. 		    otmp2->quan = confused ? rn1(5,2) : 1;
1335. 		    otmp2->owt = weight(otmp2);
1336. 		    if (!amorphous(youmonst.data) &&
1337. 			    !Passes_walls &&
1338. 			    !noncorporeal(youmonst.data) &&
1339. 			    !unsolid(youmonst.data)) {
1340. 			You("are hit by %s!", doname(otmp2));
1341. 			dmg = dmgval(otmp2, &youmonst) * otmp2->quan;
1342. 			if (uarmh) {
1343. 			    if(is_metallic(uarmh)) {
1344. 				pline("Fortunately, you are wearing a hard helmet.");
1345. 				if (dmg > 2) dmg = 2;
1346. 			    } else if (flags.verbose) {
1347. 				Your("%s does not protect you.",
1348. 						xname(uarmh));
1349. 			    }
1350. 			}
1351. 		    } else
1352. 			dmg = 0;
1353. 		    if (!flooreffects(otmp2, u.ux, u.uy, "fall")) {
1354. 			place_object(otmp2, u.ux, u.uy);
1355. 			stackobj(otmp2);
1356. 			newsym(u.ux, u.uy);
1357. 		    }
1358. 		    if (dmg) losehp(dmg, "scroll of earth", KILLED_BY_AN);
1359. 		}
1360. 
1361. 	    }
1362. 	    break;
1363. #if 0
1364. 	case MUSE_SCR_FIRE:
1365. 	      {
1366. 		boolean vis = cansee(mtmp->mx, mtmp->my);
1367. 
1368. 		mreadmsg(mtmp, otmp);
1369. 		if (mtmp->mconf) {
1370. 			if (vis)
1371. 			    pline("Oh, what a pretty fire!");
1372. 		} else {
1373. 			struct monst *mtmp2;
1374. 			int num;
1375. 
1376. 			if (vis)
1377. 			    pline_The("scroll erupts in a tower of flame!");
1378. 			shieldeff(mtmp->mx, mtmp->my);
1379. 			pline("%s is uninjured.", Monnam(mtmp));
1380. 			(void) destroy_mitem(mtmp, SCROLL_CLASS, AD_FIRE);
1381. 			(void) destroy_mitem(mtmp, SPBOOK_CLASS, AD_FIRE);
1382. 			(void) destroy_mitem(mtmp, POTION_CLASS, AD_FIRE);
1383. 			num = (2*(rn1(3, 3) + 2 * bcsign(otmp)) + 1)/3;
1384. 			if (Fire_resistance)
1385. 			    You("are not harmed.");
1386. 			burn_away_slime();
1387. 			if (Half_spell_damage) num = (num+1) / 2;
1388. 			else losehp(num, "scroll of fire", KILLED_BY_AN);
1389. 			for(mtmp2 = fmon; mtmp2; mtmp2 = mtmp2->nmon) {
1390. 			   if(mtmp == mtmp2) continue;
1391. 			   if(dist2(mtmp2->mx,mtmp2->my,mtmp->mx,mtmp->my) < 3){
1392. 				if (resists_fire(mtmp2)) continue;
1393. 				mtmp2->mhp -= num;
1394. 				if (resists_cold(mtmp2))
1395. 				    mtmp2->mhp -= 3*num;
1396. 				if(mtmp2->mhp < 1) {
1397. 				    mondied(mtmp2);
1398. 				    break;
1399. 				}
1400. 			    }
1401. 			}
1402. 		}
1403. 		return 2;
1404. 	      }
1405. #endif	/* 0 */
1406. 	case MUSE_POT_PARALYSIS:
1407. 	case MUSE_POT_BLINDNESS:
1408. 	case MUSE_POT_CONFUSION:
1409. 	case MUSE_POT_SLEEPING:
1410. 	case MUSE_POT_ACID:
1411. 		/* Note: this setting of dknown doesn't suffice.  A monster
1412. 		 * which is out of sight might throw and it hits something _in_
1413. 		 * sight, a problem not existing with wands because wand rays
1414. 		 * are not objects.  Also set dknown in mthrowu.c.
1415. 		 */
1416. 		if (cansee(mtmp->mx, mtmp->my)) {
1417. 			otmp->dknown = 1;
1418. 			pline("%s hurls %s!", Monnam(mtmp),
1419. 						singular(otmp, doname));
1420. 		}
1421. 		m_throw(mtmp, mtmp->mx, mtmp->my, sgn(mtmp->mux-mtmp->mx),
1422. 			sgn(mtmp->muy-mtmp->my),
1423. 			distmin(mtmp->mx,mtmp->my,mtmp->mux,mtmp->muy), otmp);
1424. 		return 2;
1425. 	case 0: return 0; /* i.e. an exploded wand */
1426. 	default: impossible("%s wanted to perform action %d?", Monnam(mtmp),
1427. 			m.has_offense);
1428. 		break;
1429. 	}
1430. 	return 0;
1431. }
1432. 
1433. int
1434. rnd_offensive_item(mtmp)
1435. struct monst *mtmp;
1436. {
1437. 	struct permonst *pm = mtmp->data;
1438. 	int difficulty = monstr[(monsndx(pm))];
1439. 
1440. 	if(is_animal(pm) || attacktype(pm, AT_EXPL) || mindless(mtmp->data)
1441. 			|| pm->mlet == S_GHOST
1442. # ifdef KOPS
1443. 			|| pm->mlet == S_KOP
1444. # endif
1445. 		) return 0;
1446. 	if (difficulty > 7 && !rn2(35)) return WAN_DEATH;
1447. 	switch (rn2(9 - (difficulty < 4) + 4 * (difficulty > 6))) {
1448. 		case 0: {
1449. 		    struct obj *helmet = which_armor(mtmp, W_ARMH);
1450. 
1451. 		    if ((helmet && is_metallic(helmet)) || amorphous(pm) || passes_walls(pm) || noncorporeal(pm) || unsolid(pm))
1452. 			return SCR_EARTH;
1453. 		} /* fall through */
1454. 		case 1: return WAN_STRIKING;
1455. 		case 2: return POT_ACID;
1456. 		case 3: return POT_CONFUSION;
1457. 		case 4: return POT_BLINDNESS;
1458. 		case 5: return POT_SLEEPING;
1459. 		case 6: return POT_PARALYSIS;
1460. 		case 7: case 8:
1461. 			return WAN_MAGIC_MISSILE;
1462. 		case 9: return WAN_SLEEP;
1463. 		case 10: return WAN_FIRE;
1464. 		case 11: return WAN_COLD;
1465. 		case 12: return WAN_LIGHTNING;
1466. 	}
1467. 	/*NOTREACHED*/
1468. 	return 0;
1469. }
1470. 
1471. #define MUSE_POT_GAIN_LEVEL 1
1472. #define MUSE_WAN_MAKE_INVISIBLE 2
1473. #define MUSE_POT_INVISIBILITY 3
1474. #define MUSE_POLY_TRAP 4
1475. #define MUSE_WAN_POLYMORPH 5
1476. #define MUSE_POT_SPEED 6
1477. #define MUSE_WAN_SPEED_MONSTER 7
1478. #define MUSE_BULLWHIP 8
1479. #define MUSE_POT_POLYMORPH 9
1480. 
1481. boolean
1482. find_misc(mtmp)
1483. struct monst *mtmp;
1484. {
1485. 	register struct obj *obj;
1486. 	struct permonst *mdat = mtmp->data;
1487. 	int x = mtmp->mx, y = mtmp->my;
1488. 	struct trap *t;
1489. 	int xx, yy;
1490. 	boolean immobile = (mdat->mmove == 0);
1491. 	boolean stuck = (mtmp == u.ustuck);
1492. 
1493. 	m.misc = (struct obj *)0;
1494. 	m.has_misc = 0;
1495. 	if (is_animal(mdat) || mindless(mdat))
1496. 		return 0;
1497. 	if (u.uswallow && stuck) return FALSE;
1498. 
1499. 	/* We arbitrarily limit to times when a player is nearby for the
1500. 	 * same reason as Junior Pac-Man doesn't have energizers eaten until
1501. 	 * you can see them...
1502. 	 */
1503. 	if(dist2(x, y, mtmp->mux, mtmp->muy) > 36)
1504. 		return FALSE;
1505. 
1506. 	if (!stuck && !immobile && !mtmp->cham && monstr[monsndx(mdat)] < 6) {
1507. 	  boolean ignore_boulders = (verysmall(mdat) ||
1508. 				     throws_rocks(mdat) ||
1509. 				     passes_walls(mdat));
1510. 	  for(xx = x-1; xx <= x+1; xx++)
1511. 	    for(yy = y-1; yy <= y+1; yy++)
1512. 		if (isok(xx,yy) && (xx != u.ux || yy != u.uy))
1513. 		    if (mdat != &mons[PM_GRID_BUG] || xx == x || yy == y)
1514. 			if (/* (xx==x && yy==y) || */ !level.monsters[xx][yy])
1515. 			    if ((t = t_at(xx, yy)) != 0 &&
1516. 			      (ignore_boulders || !sobj_at(BOULDER, xx, yy))
1517. 			      && !onscary(xx, yy, mtmp)) {
1518. 				if (t->ttyp == POLY_TRAP) {
1519. 				    trapx = xx;
1520. 				    trapy = yy;
1521. 				    m.has_misc = MUSE_POLY_TRAP;
1522. 				    return TRUE;
1523. 				}
1524. 			    }
1525. 	}
1526. 	if (nohands(mdat))
1527. 		return 0;
1528. 
1529. #define nomore(x) if(m.has_misc==x) continue;
1530. 	for(obj=mtmp->minvent; obj; obj=obj->nobj) {
1531. 		/* Monsters shouldn't recognize cursed items; this kludge is */
1532. 		/* necessary to prevent serious problems though... */
1533. 		if(obj->otyp == POT_GAIN_LEVEL && (!obj->cursed ||
1534. 			    (!mtmp->isgd && !mtmp->isshk && !mtmp->ispriest))) {
1535. 			m.misc = obj;
1536. 			m.has_misc = MUSE_POT_GAIN_LEVEL;
1537. 		}
1538. 		nomore(MUSE_BULLWHIP);
1539. 		if(obj->otyp == BULLWHIP && (MON_WEP(mtmp) == obj) &&
1540. 		   distu(mtmp->mx,mtmp->my)==1 && uwep && !mtmp->mpeaceful) {
1541. 			m.misc = obj;
1542. 			m.has_misc = MUSE_BULLWHIP;
1543. 		}
1544. 		/* Note: peaceful/tame monsters won't make themselves
1545. 		 * invisible unless you can see them.  Not really right, but...
1546. 		 */
1547. 		nomore(MUSE_WAN_MAKE_INVISIBLE);
1548. 		if(obj->otyp == WAN_MAKE_INVISIBLE && obj->spe > 0 &&
1549. 		    !mtmp->minvis && !mtmp->invis_blkd &&
1550. 		    (!mtmp->mpeaceful || See_invisible) &&
1551. 		    (mdat != &mons[PM_MEDUSA] || mtmp->mcan)) {
1552. 			m.misc = obj;
1553. 			m.has_misc = MUSE_WAN_MAKE_INVISIBLE;
1554. 		}
1555. 		nomore(MUSE_POT_INVISIBILITY);
1556. 		if(obj->otyp == POT_INVISIBILITY &&
1557. 		    !mtmp->minvis && !mtmp->invis_blkd &&
1558. 		    (!mtmp->mpeaceful || See_invisible)) {
1559. 			m.misc = obj;
1560. 			m.has_misc = MUSE_POT_INVISIBILITY;
1561. 		}
1562. 		nomore(MUSE_WAN_SPEED_MONSTER);
1563. 		if(obj->otyp == WAN_SPEED_MONSTER && obj->spe > 0
1564. 				&& mtmp->mspeed != MFAST && !mtmp->isgd) {
1565. 			m.misc = obj;
1566. 			m.has_misc = MUSE_WAN_SPEED_MONSTER;
1567. 		}
1568. 		nomore(MUSE_POT_SPEED);
1569. 		if(obj->otyp == POT_SPEED && mtmp->mspeed != MFAST
1570. 							&& !mtmp->isgd) {
1571. 			m.misc = obj;
1572. 			m.has_misc = MUSE_POT_SPEED;
1573. 		}
1574. 		nomore(MUSE_WAN_POLYMORPH);
1575. 		if(obj->otyp == WAN_POLYMORPH && obj->spe > 0 && !mtmp->cham
1576. 				&& monstr[monsndx(mdat)] < 6) {
1577. 			m.misc = obj;
1578. 			m.has_misc = MUSE_WAN_POLYMORPH;
1579. 		}
1580. 		nomore(MUSE_POT_POLYMORPH);
1581. 		if(obj->otyp == POT_POLYMORPH && !mtmp->cham
1582. 				&& monstr[monsndx(mdat)] < 6) {
1583. 			m.misc = obj;
1584. 			m.has_misc = MUSE_POT_POLYMORPH;
1585. 		}
1586. 	}
1587. 	return((boolean)(!!m.has_misc));
1588. #undef nomore
1589. }
1590. 
1591. int
1592. use_misc(mtmp)
1593. struct monst *mtmp;
1594. {
1595. 	int i;
1596. 	struct obj *otmp = m.misc;
1597. 	boolean vis, vismon, oseen;
1598. 	char nambuf[BUFSZ];
1599. 
1600. 	if ((i = precheck(mtmp, otmp)) != 0) return i;
1601. 	vis = cansee(mtmp->mx, mtmp->my);
1602. 	vismon = canseemon(mtmp);
1603. 	oseen = otmp && vismon;
1604. 
1605. 	switch(m.has_misc) {
1606. 	case MUSE_POT_GAIN_LEVEL:
1607. 		mquaffmsg(mtmp, otmp);
1608. 		if (otmp->cursed) {
1609. 		    if (Can_rise_up(mtmp->mx, mtmp->my, &u.uz)) {
1610. 			register int tolev = depth(&u.uz)-1;
1611. 			d_level tolevel;
1612. 
1613. 			get_level(&tolevel, tolev);
1614. 			/* insurance against future changes... */
1615. 			if(on_level(&tolevel, &u.uz)) goto skipmsg;
1616. 			if (vismon) {
1617. 			    pline("%s rises up, through the %s!",
1618. 				  Monnam(mtmp), ceiling(mtmp->mx, mtmp->my));
1619. 			    if(!objects[POT_GAIN_LEVEL].oc_name_known
1620. 			      && !objects[POT_GAIN_LEVEL].oc_uname)
1621. 				docall(otmp);
1622. 			}
1623. 			m_useup(mtmp, otmp);
1624. 			migrate_to_level(mtmp, ledger_no(&tolevel),
1625. 					 MIGR_RANDOM, (coord *)0);
1626. 			return 2;
1627. 		    } else {
1628. skipmsg:
1629. 			if (vismon) {
1630. 			    pline("%s looks uneasy.", Monnam(mtmp));
1631. 			    if(!objects[POT_GAIN_LEVEL].oc_name_known
1632. 			      && !objects[POT_GAIN_LEVEL].oc_uname)
1633. 				docall(otmp);
1634. 			}
1635. 			m_useup(mtmp, otmp);
1636. 			return 2;
1637. 		    }
1638. 		}
1639. 		if (vismon) pline("%s seems more experienced.", Monnam(mtmp));
1640. 		if (oseen) makeknown(POT_GAIN_LEVEL);
1641. 		m_useup(mtmp, otmp);
1642. 		if (!grow_up(mtmp,(struct monst *)0)) return 1;
1643. 			/* grew into genocided monster */
1644. 		return 2;
1645. 	case MUSE_WAN_MAKE_INVISIBLE:
1646. 	case MUSE_POT_INVISIBILITY:
1647. 		if (otmp->otyp == WAN_MAKE_INVISIBLE) {
1648. 		    mzapmsg(mtmp, otmp, TRUE);
1649. 		    otmp->spe--;
1650. 		} else
1651. 		    mquaffmsg(mtmp, otmp);
1652. 		/* format monster's name before altering its visibility */
1653. 		Strcpy(nambuf, See_invisible ? Monnam(mtmp) : mon_nam(mtmp));
1654. 		mon_set_minvis(mtmp);
1655. 		if (vismon && mtmp->minvis) {	/* was seen, now invisible */
1656. 		    if (See_invisible)
1657. 			pline("%s body takes on a %s transparency.",
1658. 			      s_suffix(nambuf),
1659. 			      Hallucination ? "normal" : "strange");
1660. 		    else
1661. 			pline("Suddenly you cannot see %s.", nambuf);
1662. 		    if (oseen) makeknown(otmp->otyp);
1663. 		}
1664. 		if (otmp->otyp == POT_INVISIBILITY) {
1665. 		    if (otmp->cursed) you_aggravate(mtmp);
1666. 		    m_useup(mtmp, otmp);
1667. 		}
1668. 		return 2;
1669. 	case MUSE_WAN_SPEED_MONSTER:
1670. 		mzapmsg(mtmp, otmp, TRUE);
1671. 		otmp->spe--;
1672. 		mon_adjust_speed(mtmp, 1);
1673. 		return 2;
1674. 	case MUSE_POT_SPEED:
1675. 		mquaffmsg(mtmp, otmp);
1676. 		/* note difference in potion effect due to substantially
1677. 		   different methods of maintaining speed ratings:
1678. 		   player's character becomes "very fast" temporarily;
1679. 		   monster becomes "one stage faster" permanently */
1680. 		if (vismon)
1681. 		    pline("%s is suddenly moving faster.", Monnam(mtmp));
1682. 		if (oseen) makeknown(POT_SPEED);
1683. 		mon_adjust_speed(mtmp, 1);
1684. 		m_useup(mtmp, otmp);
1685. 		return 2;
1686. 	case MUSE_WAN_POLYMORPH:
1687. 		mzapmsg(mtmp, otmp, TRUE);
1688. 		otmp->spe--;
1689. 		(void) newcham(mtmp, rndmonst());
1690. 		if (oseen) makeknown(WAN_POLYMORPH);
1691. 		return 2;
1692. 	case MUSE_POT_POLYMORPH:
1693. 		mquaffmsg(mtmp, otmp);
1694. 		if (vismon) pline("%s suddenly mutates!", Monnam(mtmp));
1695. 		(void) newcham(mtmp, rndmonst());
1696. 		if (oseen) makeknown(POT_POLYMORPH);
1697. 		m_useup(mtmp, otmp);
1698. 		return 2;
1699. 	case MUSE_POLY_TRAP:
1700. 		if (vismon)
1701. 		    pline("%s deliberately %s onto a polymorph trap!",
1702. 			Monnam(mtmp),
1703. 			makeplural(locomotion(mtmp->data, "jump")));
1704. 		if (vis) seetrap(t_at(trapx,trapy));
1705. 
1706. 		/*  don't use rloc() due to worms */
1707. 		remove_monster(mtmp->mx, mtmp->my);
1708. 		newsym(mtmp->mx, mtmp->my);
1709. 		place_monster(mtmp, trapx, trapy);
1710. 		if (mtmp->wormno) worm_move(mtmp);
1711. 		newsym(trapx, trapy);
1712. 
1713. 		(void) newcham(mtmp, (struct permonst *)0);
1714. 		return 2;
1715. 	case MUSE_BULLWHIP:
1716. 		/* attempt to disarm hero */
1717. 		if (uwep && !rn2(5)) {
1718. 		    const char *The_whip = vismon ? "The bullwhip" : "A whip";
1719. 		    int where_to = rn2(4);
1720. 		    struct obj *obj = uwep;
1721. 		    const char *hand;
1722. 		    char the_weapon[BUFSZ];
1723. 
1724. 		    Strcpy(the_weapon, the(xname(obj)));
1725. 		    hand = body_part(HAND);
1726. 		    if (bimanual(obj)) hand = makeplural(hand);
1727. 
1728. 		    if (vismon)
1729. 			pline("%s flicks a bullwhip towards your %s!",
1730. 			      Monnam(mtmp), hand);
1731. 		    if (obj->otyp == HEAVY_IRON_BALL) {
1732. 			pline("%s fails to wrap around %s.",
1733. 			      The_whip, the_weapon);
1734. 			return 1;
1735. 		    }
1736. 		    pline("%s wraps around %s you're wielding!",
1737. 			  The_whip, the_weapon);
1738. 		    if (obj->cursed) {
1739. 			pline("%s is welded to your %s%c",
1740. 			      (obj->quan == 1L) ? "It" : "They",
1741. 			      hand, !obj->bknown ? '!' : '.');
1742. 			obj->bknown = 1;
1743. 			where_to = 0;
1744. 		    }
1745. 		    if (!where_to) {
1746. 			pline("The whip slips free.");  /* not `The_whip' */
1747. 			return 1;
1748. 		    }
1749. 		    freeinv(obj);
1750. 		    uwepgone();
1751. 		    switch (where_to) {
1752. 			case 1:		/* onto floor beneath mon */
1753. 			    pline("%s yanks %s from your %s!", Monnam(mtmp),
1754. 				  the_weapon, hand);
1755. 			    if (obj->otyp == CRYSKNIFE && (!obj->oerodeproof || !rn2(10))) {
1756. 			    	obj->otyp = WORM_TOOTH;
1757. 			    	obj->oerodeproof = 0;
1758. 			    }
1759. 			    place_object(obj, mtmp->mx, mtmp->my);
1760. 			    break;
1761. 			case 2:		/* onto floor beneath you */
1762. 			    pline("%s yanks %s to the %s!", Monnam(mtmp),
1763. 				  the_weapon, surface(u.ux, u.uy));
1764. 			    dropy(obj);
1765. 			    break;
1766. 			case 3:		/* into mon's inventory */
1767. 			    pline("%s snatches %s!", Monnam(mtmp),
1768. 				  the_weapon);
1769. 			    mpickobj(mtmp,obj);
1770. 			    break;
1771. 		    }
1772. 		    return 1;
1773. 		}
1774. 		return 0;
1775. 	case 0: return 0; /* i.e. an exploded wand */
1776. 	default: impossible("%s wanted to perform action %d?", Monnam(mtmp),
1777. 			m.has_misc);
1778. 		break;
1779. 	}
1780. 	return 0;
1781. }
1782. 
1783. STATIC_OVL void
1784. you_aggravate(mtmp)
1785. struct monst *mtmp;
1786. {
1787. 	killer = ""; /* hack: prevent "it" in names */
1788. 	pline("For some reason, %s presence is known to you.",
1789. 		s_suffix(mon_nam(mtmp)));
1790. 	cls();
1791. #ifdef CLIPPING
1792. 	cliparound(mtmp->mx, mtmp->my);
1793. #endif
1794. 	show_glyph(mtmp->mx, mtmp->my, mon_to_glyph(mtmp));
1795. 	display_self();
1796. 	You_feel("aggravated at %s.", mon_nam(mtmp));
1797. 	display_nhwindow(WIN_MAP, TRUE);
1798. 	docrt();
1799. 	if (unconscious()) {
1800. 		multi = -1;
1801. 		nomovemsg =
1802. 		      "Aggravated, you are jolted into full consciousness.";
1803. 	}
1804. 	killer = 0;
1805. 	newsym(mtmp->mx,mtmp->my);
1806. }
1807. 
1808. int
1809. rnd_misc_item(mtmp)
1810. struct monst *mtmp;
1811. {
1812. 	struct permonst *pm = mtmp->data;
1813. 	int difficulty = monstr[(monsndx(pm))];
1814. 
1815. 	if(is_animal(pm) || attacktype(pm, AT_EXPL) || mindless(mtmp->data)
1816. 			|| pm->mlet == S_GHOST
1817. # ifdef KOPS
1818. 			|| pm->mlet == S_KOP
1819. # endif
1820. 		) return 0;
1821. 	/* Unlike other rnd_item functions, we only allow _weak_ monsters
1822. 	 * to have this item; after all, the item will be used to strengthen
1823. 	 * the monster and strong monsters won't use it at all...
1824. 	 */
1825. 	if (difficulty < 6 && !rn2(30))
1826. 	    return rn2(6) ? POT_POLYMORPH : WAN_POLYMORPH;
1827. 
1828. 	if (!rn2(40) && !nonliving(pm)) return AMULET_OF_LIFE_SAVING;
1829. 
1830. 	switch (rn2(3)) {
1831. 		case 0:
1832. 			if (mtmp->isgd) return 0;
1833. 			return rn2(6) ? POT_SPEED : WAN_SPEED_MONSTER;
1834. 		case 1:
1835. 			if (mtmp->mpeaceful && !See_invisible) return 0;
1836. 			return rn2(6) ? POT_INVISIBILITY : WAN_MAKE_INVISIBLE;
1837. 		case 2:
1838. 			return POT_GAIN_LEVEL;
1839. 	}
1840. 	/*NOTREACHED*/
1841. 	return 0;
1842. }
1843. 
1844. boolean
1845. searches_for_item(mon, obj)
1846. struct monst *mon;
1847. struct obj *obj;
1848. {
1849. 	int typ = obj->otyp;
1850. 
1851. 	if (is_animal(mon->data) ||
1852. 		mindless(mon->data) ||
1853. 		mon->data == &mons[PM_GHOST])	/* don't loot bones piles */
1854. 	    return FALSE;
1855. 
1856. 	if (typ == WAN_MAKE_INVISIBLE || typ == POT_INVISIBILITY)
1857. 	    return (boolean)(!mon->minvis && !mon->invis_blkd);
1858. 	if (typ == WAN_SPEED_MONSTER || typ == POT_SPEED)
1859. 	    return (boolean)(mon->mspeed != MFAST);
1860. 
1861. 	switch (obj->oclass) {
1862. 	case WAND_CLASS:
1863. 	    if (typ == WAN_DIGGING)
1864. 		return (boolean)(!is_floater(mon->data));
1865. 	    if (typ == WAN_POLYMORPH)
1866. 		return (boolean)(monstr[monsndx(mon->data)] < 6);
1867. 	    if (objects[typ].oc_dir == RAY ||
1868. 		    typ == WAN_STRIKING ||
1869. 		    typ == WAN_TELEPORTATION ||
1870. 		    typ == WAN_CREATE_MONSTER)
1871. 		return TRUE;
1872. 	    break;
1873. 	case POTION_CLASS:
1874. 	    if (typ == POT_HEALING ||
1875. 		    typ == POT_EXTRA_HEALING ||
1876. 		    typ == POT_FULL_HEALING ||
1877. 		    typ == POT_POLYMORPH ||
1878. 		    typ == POT_GAIN_LEVEL ||
1879. 		    typ == POT_PARALYSIS ||
1880. 		    typ == POT_SLEEPING ||
1881. 		    typ == POT_ACID ||
1882. 		    typ == POT_BLINDNESS ||
1883. 		    typ == POT_CONFUSION)
1884. 		return TRUE;
1885. 	    break;
1886. 	case SCROLL_CLASS:
1887. 	    if (typ == SCR_TELEPORTATION || typ == SCR_CREATE_MONSTER
1888. 		    || typ == SCR_EARTH)
1889. 		return TRUE;
1890. 	    break;
1891. 	case AMULET_CLASS:
1892. 	    if (typ == AMULET_OF_LIFE_SAVING)
1893. 		return (boolean)(!nonliving(mon->data));
1894. 	    if (typ == AMULET_OF_REFLECTION)
1895. 		return TRUE;
1896. 	    break;
1897. 	case TOOL_CLASS:
1898. 	    if (typ == PICK_AXE)
1899. 		return (boolean)needspick(mon->data);
1900. 	    if (typ == UNICORN_HORN)
1901. 		return (boolean)(!obj->cursed && !is_unicorn(mon->data));
1902. 	    if (typ == FROST_HORN || typ == FIRE_HORN)
1903. 		return TRUE;
1904. 	    break;
1905. 	case FOOD_CLASS:
1906. 	    if (typ == CORPSE)
1907. 		return (boolean)(((mon->misc_worn_check & W_ARMG) &&
1908. 				    touch_petrifies(&mons[obj->corpsenm])) ||
1909. 				(!resists_ston(mon) &&
1910. 				    (obj->corpsenm == PM_LIZARD ||
1911. 					acidic(&mons[obj->corpsenm]))));
1912. 	    if (typ == EGG)
1913. 		return (boolean)(touch_petrifies(&mons[obj->corpsenm]));
1914. 	    break;
1915. 	default:
1916. 	    break;
1917. 	}
1918. 
1919. 	return FALSE;
1920. }
1921. 
1922. boolean
1923. mon_reflects(mon,str)
1924. struct monst *mon;
1925. const char *str;
1926. {
1927. 	struct obj *orefl = which_armor(mon, W_ARMS);
1928. 
1929. 	if (orefl && orefl->otyp == SHIELD_OF_REFLECTION) {
1930. 	    if (str) {
1931. 		pline(str, s_suffix(mon_nam(mon)), "shield");
1932. 		makeknown(SHIELD_OF_REFLECTION);
1933. 	    }
1934. 	    return TRUE;
1935. 	} else if ((orefl = which_armor(mon, W_AMUL)) &&
1936. 				orefl->otyp == AMULET_OF_REFLECTION) {
1937. 	    if (str) {
1938. 		pline(str, s_suffix(mon_nam(mon)), "amulet");
1939. 		makeknown(AMULET_OF_REFLECTION);
1940. 	    }
1941. 	    return TRUE;
1942. 	} else if ((orefl = which_armor(mon, W_ARM)) &&
1943. 		(orefl->otyp == SILVER_DRAGON_SCALES || orefl->otyp == SILVER_DRAGON_SCALE_MAIL)) {
1944. 	    if (str)
1945. 		pline(str, s_suffix(mon_nam(mon)), "armor");
1946. 	    return TRUE;
1947. 	} else if (mon->data == &mons[PM_SILVER_DRAGON]) {
1948. 	    /* Silver dragons only reflect when mature; babies do not */
1949. 	    if (str)
1950. 		pline(str, s_suffix(mon_nam(mon)), "scales");
1951. 	    return TRUE;
1952. 	}
1953. 	return FALSE;
1954. }
1955. 
1956. boolean
1957. ureflects (fmt, str)
1958. const char *fmt, *str;
1959. {
1960. 	/* Check from outermost to innermost objects */
1961. 	if (EReflecting & W_ARMS) {
1962. 	    if (fmt && str) {
1963. 	    	pline(fmt, str, "shield");
1964. 	    	makeknown(SHIELD_OF_REFLECTION);
1965. 	    }
1966. 	    return TRUE;
1967. 	} else if (EReflecting & W_WEP) {
1968. 	    /* Due to wielded artifact weapon */
1969. 	    if (fmt && str)
1970. 	    	pline(fmt, str, "weapon");
1971. 	    return TRUE;
1972. 	} else if (EReflecting & W_AMUL) {
1973. 	    if (fmt && str) {
1974. 	    	pline(fmt, str, "medallion");
1975. 	    	makeknown(AMULET_OF_REFLECTION);
1976. 	    }
1977. 	    return TRUE;
1978. 	} else if (EReflecting & W_ARM) {
1979. 	    if (fmt && str)
1980. 	    	pline(fmt, str, "armor");
1981. 	    return TRUE;
1982. 	} else if (youmonst.data == &mons[PM_SILVER_DRAGON]) {
1983. 	    if (fmt && str)
1984. 	    	pline(fmt, str, "scales");
1985. 	    return TRUE;
1986. 	}
1987. 	return FALSE;
1988. }
1989. 
1990. 
1991. /* TRUE if the monster ate something */
1992. boolean
1993. munstone(mon, by_you)
1994. struct monst *mon;
1995. boolean by_you;
1996. {
1997. 	struct obj *obj;
1998. 
1999. 	if (resists_ston(mon)) return FALSE;
2000. 	if (mon->meating || !mon->mcanmove || mon->msleeping) return FALSE;
2001. 
2002. 	for(obj = mon->minvent; obj; obj = obj->nobj) {
2003. 	    /* Monsters can also use potions of acid */
2004. 	    if ((obj->otyp == POT_ACID) || (obj->otyp == CORPSE &&
2005. 	    		(obj->corpsenm == PM_LIZARD || acidic(&mons[obj->corpsenm])))) {
2006. 		int nutrit = dog_nutrition(mon, obj); /* also sets meating */
2007. 
2008. 		if (canseemon(mon)) {
2009. 		    long save_quan = obj->quan;
2010. 
2011. 		    obj->quan = 1L;
2012. 		    pline("%s %ss %s.", Monnam(mon),
2013. 		    		(obj->otyp == POT_ACID) ? "quaff" : "eat",
2014. 		    		distant_name(obj,doname));
2015. 		    obj->quan = save_quan;
2016. 		} else if (flags.soundok)
2017. 		    You("hear %s.", (obj->otyp == POT_ACID) ? "drinking" : "chewing");
2018. 		m_useup(mon, obj);
2019. 		if (((obj->otyp == POT_ACID) || acidic(&mons[obj->corpsenm])) &&
2020. 				!resists_acid(mon)) {
2021. 		    mon->mhp -= rnd(15);
2022. 		    pline("%s has a very bad case of stomach acid.",
2023. 			Monnam(mon));
2024. 		}
2025. 		if (mon->mhp <= 0) {
2026. 		    pline("%s dies!", Monnam(mon));
2027. 		    if (by_you) xkilled(mon, 0);
2028. 		    else mondead(mon);
2029. 		    return TRUE;
2030. 		}
2031. 		if (canseemon(mon)) {
2032. 		    if (Hallucination)
2033. 		pline("What a pity - %s just ruined a future piece of art!",
2034. 			mon_nam(mon));
2035. 		    else
2036. 			pline("%s seems limber!", Monnam(mon));
2037. 		}
2038. 		if (mon->mtame && !mon->isminion) {
2039. 		    struct edog *edog = EDOG(mon);
2040. 
2041. 		    if (edog->hungrytime < moves) edog->hungrytime = moves;
2042. 		    edog->hungrytime += nutrit;
2043. 		    mon->mconf = 0;
2044. 		}
2045. 		mon->mlstmv = monstermoves; /* it takes a turn */
2046. 		return TRUE;
2047. 	    }
2048. 	}
2049. 	return FALSE;
2050. }
2051. 
2052. /*muse.c*/

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