xref: /dragonfly/games/hack/hack.fight.c (revision 9ddb8543)
1 /* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
2 /* hack.fight.c - version 1.0.3 */
3 /* $FreeBSD: src/games/hack/hack.fight.c,v 1.5 1999/11/16 10:26:36 marcel Exp $ */
4 /* $DragonFly: src/games/hack/hack.fight.c,v 1.5 2006/08/21 19:45:32 pavalos Exp $ */
5 
6 #include	"hack.h"
7 extern struct permonst li_dog, dog, la_dog;
8 
9 static boolean far_noise;
10 static long noisetime;
11 
12 static void	monstone(struct monst *);
13 
14 /* hitmm returns 0 (miss), 1 (hit), or 2 (kill) */
15 int
16 hitmm(struct monst *magr, struct monst *mdef)
17 {
18 struct permonst *pa = magr->data, *pd = mdef->data;
19 int ht;
20 schar tmp;
21 boolean vis;
22 	if(index("Eauy", pa->mlet)) return(0);
23 	if(magr->mfroz) return(0);		/* riv05!a3 */
24 	tmp = pd->ac + pa->mlevel;
25 	if(mdef->mconf || mdef->mfroz || mdef->msleep){
26 		tmp += 4;
27 		if(mdef->msleep) mdef->msleep = 0;
28 	}
29 	ht = (tmp > rnd(20));
30 	if(ht) mdef->msleep = 0;
31 	vis = (cansee(magr->mx,magr->my) && cansee(mdef->mx,mdef->my));
32 	if(vis){
33 		char buf[BUFSZ];
34 		if(mdef->mimic) seemimic(mdef);
35 		if(magr->mimic) seemimic(magr);
36 		sprintf(buf,"%s %s", Monnam(magr),
37 			ht ? "hits" : "misses");
38 		pline("%s %s.", buf, monnam(mdef));
39 	} else {
40 		boolean far = (dist(magr->mx, magr->my) > 15);
41 		if(far != far_noise || moves-noisetime > 10) {
42 			far_noise = far;
43 			noisetime = moves;
44 			pline("You hear some noises%s.",
45 				far ? " in the distance" : "");
46 		}
47 	}
48 	if(ht){
49 		if(magr->data->mlet == 'c' && !magr->cham) {
50 			magr->mhpmax += 3;
51 			if(vis) pline("%s is turned to stone!", Monnam(mdef));
52 			else if(mdef->mtame)
53      pline("You have a peculiarly sad feeling for a moment, then it passes.");
54 			monstone(mdef);
55 			ht = 2;
56 		} else
57 		if((mdef->mhp -= d(pa->damn,pa->damd)) < 1) {
58 			magr->mhpmax += 1 + rn2(pd->mlevel+1);
59 			if(magr->mtame && magr->mhpmax > 8*pa->mlevel){
60 				if(pa == &li_dog) magr->data = pa = &dog;
61 				else if(pa == &dog) magr->data = pa = &la_dog;
62 			}
63 			if(vis) pline("%s is killed!", Monnam(mdef));
64 			else if(mdef->mtame)
65 		pline("You have a sad feeling for a moment, then it passes.");
66 			mondied(mdef);
67 			ht = 2;
68 		}
69 	}
70 	return(ht);
71 }
72 
73 /* drop (perhaps) a cadaver and remove monster */
74 void
75 mondied(struct monst *mdef)
76 {
77 struct permonst *pd = mdef->data;
78 		if(letter(pd->mlet) && rn2(3)){
79 			mkobj_at(pd->mlet,mdef->mx,mdef->my);
80 			if(cansee(mdef->mx,mdef->my)){
81 				unpmon(mdef);
82 				atl(mdef->mx,mdef->my,fobj->olet);
83 			}
84 			stackobj(fobj);
85 		}
86 		mondead(mdef);
87 }
88 
89 /* drop a rock and remove monster */
90 static void
91 monstone(struct monst *mdef)
92 {
93 	if(index(mlarge, mdef->data->mlet))
94 		mksobj_at(ENORMOUS_ROCK, mdef->mx, mdef->my);
95 	else
96 		mksobj_at(ROCK, mdef->mx, mdef->my);
97 	if(cansee(mdef->mx, mdef->my)){
98 		unpmon(mdef);
99 		atl(mdef->mx,mdef->my,fobj->olet);
100 	}
101 	mondead(mdef);
102 }
103 
104 int
105 fightm(struct monst *mtmp)
106 {
107 struct monst *mon;
108 	for(mon = fmon; mon; mon = mon->nmon) if(mon != mtmp) {
109 		if(DIST(mon->mx,mon->my,mtmp->mx,mtmp->my) < 3)
110 		    if(rn2(4))
111 			return(hitmm(mtmp,mon));
112 	}
113 	return(-1);
114 }
115 
116 /* u is hit by sth, but not a monster */
117 bool
118 thitu(int tlev, int dam, const char *name)
119 {
120 char buf[BUFSZ];
121 	setan(name,buf);
122 	if(u.uac + tlev <= rnd(20)) {
123 		if(Blind) pline("It misses.");
124 		else pline("You are almost hit by %s!", buf);
125 		return(0);
126 	} else {
127 		if(Blind) pline("You are hit!");
128 		else pline("You are hit by %s!", buf);
129 		losehp(dam,name);
130 		return(1);
131 	}
132 }
133 
134 char mlarge[] = "bCDdegIlmnoPSsTUwY',&";
135 
136 /* return TRUE if mon still alive */
137 bool
138 hmon(struct monst *mon, struct obj *obj, int thrown)
139 {
140 	int tmp;
141 	bool hittxt = FALSE;
142 
143 	if(!obj){
144 		tmp = rnd(2);	/* attack with bare hands */
145 		if(mon->data->mlet == 'c' && !uarmg){
146 			pline("You hit the cockatrice with your bare hands.");
147 			pline("You turn to stone ...");
148 			done_in_by(mon);
149 		}
150 	} else if(obj->olet == WEAPON_SYM || obj->otyp == PICK_AXE) {
151 	    if(obj == uwep && (obj->otyp > SPEAR || obj->otyp < BOOMERANG))
152 		tmp = rnd(2);
153 	    else {
154 		if(index(mlarge, mon->data->mlet)) {
155 			tmp = rnd(objects[obj->otyp].wldam);
156 			if(obj->otyp == TWO_HANDED_SWORD) tmp += d(2,6);
157 			else if(obj->otyp == FLAIL) tmp += rnd(4);
158 		} else {
159 			tmp = rnd(objects[obj->otyp].wsdam);
160 		}
161 		tmp += obj->spe;
162 		if(!thrown && obj == uwep && obj->otyp == BOOMERANG
163 		 && !rn2(3)){
164 		  pline("As you hit %s, the boomerang breaks into splinters.",
165 				monnam(mon));
166 			freeinv(obj);
167 			setworn(NULL, obj->owornmask);
168 			obfree(obj, NULL);
169 			tmp++;
170 		}
171 	    }
172 	    if(mon->data->mlet == 'O' && obj->otyp == TWO_HANDED_SWORD &&
173 		!strcmp(ONAME(obj), "Orcrist"))
174 		tmp += rnd(10);
175 	} else	switch(obj->otyp) {
176 		case HEAVY_IRON_BALL:
177 			tmp = rnd(25); break;
178 		case EXPENSIVE_CAMERA:
179 	pline("You succeed in destroying your camera. Congratulations!");
180 			freeinv(obj);
181 			if(obj->owornmask)
182 				setworn(NULL, obj->owornmask);
183 			obfree(obj, NULL);
184 			return(TRUE);
185 		case DEAD_COCKATRICE:
186 			pline("You hit %s with the cockatrice corpse.",
187 				monnam(mon));
188 			if(mon->data->mlet == 'c') {
189 				tmp = 1;
190 				hittxt = TRUE;
191 				break;
192 			}
193 			pline("%s is turned to stone!", Monnam(mon));
194 			killed(mon);
195 			return(FALSE);
196 		case CLOVE_OF_GARLIC:		/* no effect against demons */
197 			if(index(UNDEAD, mon->data->mlet))
198 				mon->mflee = 1;
199 			tmp = 1;
200 			break;
201 		default:
202 			/* non-weapons can damage because of their weight */
203 			/* (but not too much) */
204 			tmp = obj->owt/10;
205 			if(tmp < 1) tmp = 1;
206 			else tmp = rnd(tmp);
207 			if(tmp > 6) tmp = 6;
208 		}
209 
210 	/****** NOTE: perhaps obj is undefined!! (if !thrown && BOOMERANG) */
211 
212 	tmp += u.udaminc + dbon();
213 	if(u.uswallow) {
214 		if((tmp -= u.uswldtim) <= 0) {
215 			pline("Your arms are no longer able to hit.");
216 			return(TRUE);
217 		}
218 	}
219 	if(tmp < 1) tmp = 1;
220 	mon->mhp -= tmp;
221 	if(mon->mhp < 1) {
222 		killed(mon);
223 		return(FALSE);
224 	}
225 	if(mon->mtame && (!mon->mflee || mon->mfleetim)) {
226 		mon->mflee = 1;			/* Rick Richardson */
227 		mon->mfleetim += 10*rnd(tmp);
228 	}
229 
230 	if(!hittxt) {
231 		if(thrown)
232 			/* this assumes that we cannot throw plural things */
233 			hit( xname(obj)  /* or: objects[obj->otyp].oc_name */,
234 				mon, exclam(tmp) );
235 		else if(Blind)
236 			pline("You hit it.");
237 		else
238 			pline("You hit %s%s", monnam(mon), exclam(tmp));
239 	}
240 
241 	if(u.umconf && !thrown) {
242 		if(!Blind) {
243 			pline("Your hands stop glowing blue.");
244 			if(!mon->mfroz && !mon->msleep)
245 				pline("%s appears confused.",Monnam(mon));
246 		}
247 		mon->mconf = 1;
248 		u.umconf = 0;
249 	}
250 	return(TRUE);	/* mon still alive */
251 }
252 
253 /* try to attack; return FALSE if monster evaded */
254 /* u.dx and u.dy must be set */
255 bool
256 attack(struct monst *mtmp)
257 {
258 	schar tmp;
259 	boolean malive = TRUE;
260 	struct permonst *mdat;
261 	mdat = mtmp->data;
262 
263 	u_wipe_engr(3);   /* andrew@orca: prevent unlimited pick-axe attacks */
264 
265 	if(mdat->mlet == 'L' && !mtmp->mfroz && !mtmp->msleep &&
266 	   !mtmp->mconf && mtmp->mcansee && !rn2(7) &&
267 	   (m_move(mtmp, 0) == 2 /* he died */ || /* he moved: */
268 		mtmp->mx != u.ux+u.dx || mtmp->my != u.uy+u.dy))
269 		return(FALSE);
270 
271 	if(mtmp->mimic){
272 		if(!u.ustuck && !mtmp->mflee) u.ustuck = mtmp;
273 		switch(levl[u.ux+u.dx][u.uy+u.dy].scrsym){
274 		case '+':
275 			pline("The door actually was a Mimic.");
276 			break;
277 		case '$':
278 			pline("The chest was a Mimic!");
279 			break;
280 		default:
281 			pline("Wait! That's a Mimic!");
282 		}
283 		wakeup(mtmp);	/* clears mtmp->mimic */
284 		return(TRUE);
285 	}
286 
287 	wakeup(mtmp);
288 
289 	if(mtmp->mhide && mtmp->mundetected){
290 		struct obj *obj;
291 
292 		mtmp->mundetected = 0;
293 		if((obj = o_at(mtmp->mx,mtmp->my)) && !Blind)
294 			pline("Wait! There's a %s hiding under %s!",
295 				mdat->mname, doname(obj));
296 		return(TRUE);
297 	}
298 
299 	tmp = u.uluck + u.ulevel + mdat->ac + abon();
300 	if(uwep) {
301 		if(uwep->olet == WEAPON_SYM || uwep->otyp == PICK_AXE)
302 			tmp += uwep->spe;
303 		if(uwep->otyp == TWO_HANDED_SWORD) tmp -= 1;
304 		else if(uwep->otyp == DAGGER) tmp += 2;
305 		else if(uwep->otyp == CRYSKNIFE) tmp += 3;
306 		else if(uwep->otyp == SPEAR &&
307 			index("XDne", mdat->mlet)) tmp += 2;
308 	}
309 	if(mtmp->msleep) {
310 		mtmp->msleep = 0;
311 		tmp += 2;
312 	}
313 	if(mtmp->mfroz) {
314 		tmp += 4;
315 		if(!rn2(10)) mtmp->mfroz = 0;
316 	}
317 	if(mtmp->mflee) tmp += 2;
318 	if(u.utrap) tmp -= 3;
319 
320 	/* with a lot of luggage, your agility diminishes */
321 	tmp -= (inv_weight() + 40)/20;
322 
323 	if(tmp <= rnd(20) && !u.uswallow){
324 		if(Blind) pline("You miss it.");
325 		else pline("You miss %s.",monnam(mtmp));
326 	} else {
327 		/* we hit the monster; be careful: it might die! */
328 
329 		if((malive = hmon(mtmp,uwep,0)) == TRUE) {
330 		/* monster still alive */
331 			if(!rn2(25) && mtmp->mhp < mtmp->mhpmax/2) {
332 				mtmp->mflee = 1;
333 				if(!rn2(3)) mtmp->mfleetim = rnd(100);
334 				if(u.ustuck == mtmp && !u.uswallow)
335 					u.ustuck = 0;
336 			}
337 #ifndef NOWORM
338 			if(mtmp->wormno)
339 				cutworm(mtmp, u.ux+u.dx, u.uy+u.dy,
340 					uwep ? uwep->otyp : 0);
341 #endif /* NOWORM */
342 		}
343 		if(mdat->mlet == 'a') {
344 			if(rn2(2)) {
345 				pline("You are splashed by the blob's acid!");
346 				losehp_m(rnd(6), mtmp);
347 				if(!rn2(30)) corrode_armor();
348 			}
349 			if(!rn2(6)) corrode_weapon();
350 		}
351 	}
352 	if(malive && mdat->mlet == 'E' && canseemon(mtmp)
353 	   && !mtmp->mcan && rn2(3)) {
354 	    if(mtmp->mcansee) {
355 	      pline("You are frozen by the floating eye's gaze!");
356 	      nomul((u.ulevel > 6 || rn2(4)) ? rn1(20,-21) : -200);
357 	    } else {
358 	      pline("The blinded floating eye cannot defend itself.");
359 	      if(!rn2(500)) if((int)u.uluck > LUCKMIN) u.uluck--;
360 	    }
361 	}
362 	return(TRUE);
363 }
364