hack.fight.c revision 1.8.14.1 1 /* $NetBSD: hack.fight.c,v 1.8.14.1 2009/06/29 23:22:24 snj Exp $ */
2
3 /*
4 * Copyright (c) 1985, Stichting Centrum voor Wiskunde en Informatica,
5 * Amsterdam
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions are
10 * met:
11 *
12 * - Redistributions of source code must retain the above copyright notice,
13 * this list of conditions and the following disclaimer.
14 *
15 * - Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * - Neither the name of the Stichting Centrum voor Wiskunde en
20 * Informatica, nor the names of its contributors may be used to endorse or
21 * promote products derived from this software without specific prior
22 * written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
25 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
26 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
27 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
28 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
29 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
30 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
31 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
32 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
33 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
34 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
35 */
36
37 /*
38 * Copyright (c) 1982 Jay Fenlason <hack (at) gnu.org>
39 * All rights reserved.
40 *
41 * Redistribution and use in source and binary forms, with or without
42 * modification, are permitted provided that the following conditions
43 * are met:
44 * 1. Redistributions of source code must retain the above copyright
45 * notice, this list of conditions and the following disclaimer.
46 * 2. Redistributions in binary form must reproduce the above copyright
47 * notice, this list of conditions and the following disclaimer in the
48 * documentation and/or other materials provided with the distribution.
49 * 3. The name of the author may not be used to endorse or promote products
50 * derived from this software without specific prior written permission.
51 *
52 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
53 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
54 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
55 * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
56 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
57 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
58 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
59 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
60 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
61 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
62 */
63
64 #include <sys/cdefs.h>
65 #ifndef lint
66 __RCSID("$NetBSD: hack.fight.c,v 1.8.14.1 2009/06/29 23:22:24 snj Exp $");
67 #endif /* not lint */
68
69 #include "hack.h"
70 #include "extern.h"
71
72 static boolean far_noise;
73 static long noisetime;
74
75 /* hitmm returns 0 (miss), 1 (hit), or 2 (kill) */
76 int
77 hitmm(magr, mdef)
78 struct monst *magr, *mdef;
79 {
80 const struct permonst *pa = magr->data, *pd = mdef->data;
81 int didhit;
82 schar tmp;
83 boolean vis;
84
85 if (strchr("Eauy", pa->mlet))
86 return (0);
87 if (magr->mfroz)
88 return (0); /* riv05!a3 */
89 tmp = pd->ac + pa->mlevel;
90 if (mdef->mconf || mdef->mfroz || mdef->msleep) {
91 tmp += 4;
92 if (mdef->msleep)
93 mdef->msleep = 0;
94 }
95 didhit = (tmp > rnd(20));
96 if (didhit)
97 mdef->msleep = 0;
98 vis = (cansee(magr->mx, magr->my) && cansee(mdef->mx, mdef->my));
99 if (vis) {
100 char buf[BUFSZ];
101 if (mdef->mimic)
102 seemimic(mdef);
103 if (magr->mimic)
104 seemimic(magr);
105 (void) snprintf(buf, sizeof(buf), "%s %s", Monnam(magr),
106 didhit ? "hits" : "misses");
107 pline("%s %s.", buf, monnam(mdef));
108 } else {
109 boolean far = (dist(magr->mx, magr->my) > 15);
110 if (far != far_noise || moves - noisetime > 10) {
111 far_noise = far;
112 noisetime = moves;
113 pline("You hear some noises%s.",
114 far ? " in the distance" : "");
115 }
116 }
117 if (didhit) {
118 if (magr->data->mlet == 'c' && !magr->cham) {
119 magr->mhpmax += 3;
120 if (vis)
121 pline("%s is turned to stone!", Monnam(mdef));
122 else if (mdef->mtame)
123 pline("You have a peculiarly sad feeling for a moment, then it passes.");
124 monstone(mdef);
125 didhit = 2;
126 } else if ((mdef->mhp -= d(pa->damn, pa->damd)) < 1) {
127 magr->mhpmax += 1 + rn2(pd->mlevel + 1);
128 if (magr->mtame && magr->mhpmax > 8 * pa->mlevel) {
129 if (pa == &li_dog)
130 magr->data = pa = &dog;
131 else if (pa == &dog)
132 magr->data = pa = &la_dog;
133 }
134 if (vis)
135 pline("%s is killed!", Monnam(mdef));
136 else if (mdef->mtame)
137 pline("You have a sad feeling for a moment, then it passes.");
138 mondied(mdef);
139 didhit = 2;
140 }
141 }
142 return (didhit);
143 }
144
145 /* drop (perhaps) a cadaver and remove monster */
146 void
147 mondied(mdef)
148 struct monst *mdef;
149 {
150 const struct permonst *pd = mdef->data;
151 if (letter(pd->mlet) && rn2(3)) {
152 (void) mkobj_at(pd->mlet, mdef->mx, mdef->my);
153 if (cansee(mdef->mx, mdef->my)) {
154 unpmon(mdef);
155 atl(mdef->mx, mdef->my, fobj->olet);
156 }
157 stackobj(fobj);
158 }
159 mondead(mdef);
160 }
161
162 /* drop a rock and remove monster */
163 void
164 monstone(mdef)
165 struct monst *mdef;
166 {
167 if (strchr(mlarge, mdef->data->mlet))
168 mksobj_at(ENORMOUS_ROCK, mdef->mx, mdef->my);
169 else
170 mksobj_at(ROCK, mdef->mx, mdef->my);
171 if (cansee(mdef->mx, mdef->my)) {
172 unpmon(mdef);
173 atl(mdef->mx, mdef->my, fobj->olet);
174 }
175 mondead(mdef);
176 }
177
178
179 int
180 fightm(mtmp)
181 struct monst *mtmp;
182 {
183 struct monst *mon;
184 for (mon = fmon; mon; mon = mon->nmon)
185 if (mon != mtmp) {
186 if (DIST(mon->mx, mon->my, mtmp->mx, mtmp->my) < 3)
187 if (rn2(4))
188 return (hitmm(mtmp, mon));
189 }
190 return (-1);
191 }
192
193 /* u is hit by sth, but not a monster */
194 int
195 thitu(tlev, dam, name)
196 int tlev, dam;
197 const char *name;
198 {
199 char buf[BUFSZ];
200
201 setan(name, buf, sizeof(buf));
202 if (u.uac + tlev <= rnd(20)) {
203 if (Blind)
204 pline("It misses.");
205 else
206 pline("You are almost hit by %s!", buf);
207 return (0);
208 } else {
209 if (Blind)
210 pline("You are hit!");
211 else
212 pline("You are hit by %s!", buf);
213 losehp(dam, name);
214 return (1);
215 }
216 }
217
218 char mlarge[] = "bCDdegIlmnoPSsTUwY',&";
219
220 boolean
221 hmon(mon, obj, thrown) /* return TRUE if mon still alive */
222 struct monst *mon;
223 struct obj *obj;
224 int thrown;
225 {
226 int tmp;
227 boolean hittxt = FALSE;
228
229 if (!obj) {
230 tmp = rnd(2); /* attack with bare hands */
231 if (mon->data->mlet == 'c' && !uarmg) {
232 pline("You hit the cockatrice with your bare hands.");
233 pline("You turn to stone ...");
234 done_in_by(mon);
235 }
236 } else if (obj->olet == WEAPON_SYM || obj->otyp == PICK_AXE) {
237 if (obj == uwep && (obj->otyp > SPEAR || obj->otyp < BOOMERANG))
238 tmp = rnd(2);
239 else {
240 if (strchr(mlarge, mon->data->mlet)) {
241 tmp = rnd(objects[obj->otyp].wldam);
242 if (obj->otyp == TWO_HANDED_SWORD)
243 tmp += d(2, 6);
244 else if (obj->otyp == FLAIL)
245 tmp += rnd(4);
246 } else {
247 tmp = rnd(objects[obj->otyp].wsdam);
248 }
249 tmp += obj->spe;
250 if (!thrown && obj == uwep && obj->otyp == BOOMERANG
251 && !rn2(3)) {
252 pline("As you hit %s, the boomerang breaks into splinters.",
253 monnam(mon));
254 freeinv(obj);
255 setworn((struct obj *) 0, obj->owornmask);
256 obfree(obj, (struct obj *) 0);
257 obj = NULL;
258 tmp++;
259 }
260 }
261 if (mon->data->mlet == 'O' && obj != NULL &&
262 obj->otyp == TWO_HANDED_SWORD &&
263 !strcmp(ONAME(obj), "Orcrist"))
264 tmp += rnd(10);
265 } else
266 switch (obj->otyp) {
267 case HEAVY_IRON_BALL:
268 tmp = rnd(25);
269 break;
270 case EXPENSIVE_CAMERA:
271 pline("You succeed in destroying your camera. Congratulations!");
272 freeinv(obj);
273 if (obj->owornmask)
274 setworn((struct obj *) 0, obj->owornmask);
275 obfree(obj, (struct obj *) 0);
276 return (TRUE);
277 case DEAD_COCKATRICE:
278 pline("You hit %s with the cockatrice corpse.",
279 monnam(mon));
280 if (mon->data->mlet == 'c') {
281 tmp = 1;
282 hittxt = TRUE;
283 break;
284 }
285 pline("%s is turned to stone!", Monnam(mon));
286 killed(mon);
287 return (FALSE);
288 case CLOVE_OF_GARLIC: /* no effect against demons */
289 if (strchr(UNDEAD, mon->data->mlet))
290 mon->mflee = 1;
291 tmp = 1;
292 break;
293 default:
294 /* non-weapons can damage because of their weight */
295 /* (but not too much) */
296 tmp = obj->owt / 10;
297 if (tmp < 1)
298 tmp = 1;
299 else
300 tmp = rnd(tmp);
301 if (tmp > 6)
302 tmp = 6;
303 }
304
305 /****** NOTE: perhaps obj is undefined!! (if !thrown && BOOMERANG) */
306
307 tmp += u.udaminc + dbon();
308 if (u.uswallow) {
309 if ((tmp -= u.uswldtim) <= 0) {
310 pline("Your arms are no longer able to hit.");
311 return (TRUE);
312 }
313 }
314 if (tmp < 1)
315 tmp = 1;
316 mon->mhp -= tmp;
317 if (mon->mhp < 1) {
318 killed(mon);
319 return (FALSE);
320 }
321 if (mon->mtame && (!mon->mflee || mon->mfleetim)) {
322 mon->mflee = 1; /* Rick Richardson */
323 mon->mfleetim += 10 * rnd(tmp);
324 }
325 if (!hittxt) {
326 if (thrown) {
327 /* this assumes that we cannot throw plural things */
328 if (obj == NULL)
329 panic("thrown non-object");
330 hit(xname(obj) /* or: objects[obj->otyp].oc_name */ ,
331 mon, exclam(tmp));
332 } else if (Blind)
333 pline("You hit it.");
334 else
335 pline("You hit %s%s", monnam(mon), exclam(tmp));
336 }
337 if (u.umconf && !thrown) {
338 if (!Blind) {
339 pline("Your hands stop glowing blue.");
340 if (!mon->mfroz && !mon->msleep)
341 pline("%s appears confused.", Monnam(mon));
342 }
343 mon->mconf = 1;
344 u.umconf = 0;
345 }
346 return (TRUE); /* mon still alive */
347 }
348
349 /* try to attack; return FALSE if monster evaded */
350 /* u.dx and u.dy must be set */
351 int
352 attack(mtmp)
353 struct monst *mtmp;
354 {
355 schar tmp;
356 boolean malive = TRUE;
357 const struct permonst *mdat;
358 mdat = mtmp->data;
359
360 u_wipe_engr(3); /* andrew@orca: prevent unlimited pick-axe
361 * attacks */
362
363 if (mdat->mlet == 'L' && !mtmp->mfroz && !mtmp->msleep &&
364 !mtmp->mconf && mtmp->mcansee && !rn2(7) &&
365 (m_move(mtmp, 0) == 2 /* he died */ || /* he moved: */
366 mtmp->mx != u.ux + u.dx || mtmp->my != u.uy + u.dy))
367 return (FALSE);
368
369 if (mtmp->mimic) {
370 if (!u.ustuck && !mtmp->mflee)
371 u.ustuck = mtmp;
372 switch (levl[u.ux + u.dx][u.uy + u.dy].scrsym) {
373 case '+':
374 pline("The door actually was a Mimic.");
375 break;
376 case '$':
377 pline("The chest was a Mimic!");
378 break;
379 default:
380 pline("Wait! That's a Mimic!");
381 }
382 wakeup(mtmp); /* clears mtmp->mimic */
383 return (TRUE);
384 }
385 wakeup(mtmp);
386
387 if (mtmp->mhide && mtmp->mundetected) {
388 struct obj *obj;
389
390 mtmp->mundetected = 0;
391 if ((obj = o_at(mtmp->mx, mtmp->my)) && !Blind)
392 pline("Wait! There's a %s hiding under %s!",
393 mdat->mname, doname(obj));
394 return (TRUE);
395 }
396 tmp = u.uluck + u.ulevel + mdat->ac + abon();
397 if (uwep) {
398 if (uwep->olet == WEAPON_SYM || uwep->otyp == PICK_AXE)
399 tmp += uwep->spe;
400 if (uwep->otyp == TWO_HANDED_SWORD)
401 tmp -= 1;
402 else if (uwep->otyp == DAGGER)
403 tmp += 2;
404 else if (uwep->otyp == CRYSKNIFE)
405 tmp += 3;
406 else if (uwep->otyp == SPEAR &&
407 strchr("XDne", mdat->mlet))
408 tmp += 2;
409 }
410 if (mtmp->msleep) {
411 mtmp->msleep = 0;
412 tmp += 2;
413 }
414 if (mtmp->mfroz) {
415 tmp += 4;
416 if (!rn2(10))
417 mtmp->mfroz = 0;
418 }
419 if (mtmp->mflee)
420 tmp += 2;
421 if (u.utrap)
422 tmp -= 3;
423
424 /* with a lot of luggage, your agility diminishes */
425 tmp -= (inv_weight() + 40) / 20;
426
427 if (tmp <= rnd(20) && !u.uswallow) {
428 if (Blind)
429 pline("You miss it.");
430 else
431 pline("You miss %s.", monnam(mtmp));
432 } else {
433 /* we hit the monster; be careful: it might die! */
434
435 if ((malive = hmon(mtmp, uwep, 0)) == TRUE) {
436 /* monster still alive */
437 if (!rn2(25) && mtmp->mhp < mtmp->mhpmax / 2) {
438 mtmp->mflee = 1;
439 if (!rn2(3))
440 mtmp->mfleetim = rnd(100);
441 if (u.ustuck == mtmp && !u.uswallow)
442 u.ustuck = 0;
443 }
444 #ifndef NOWORM
445 if (mtmp->wormno)
446 cutworm(mtmp, u.ux + u.dx, u.uy + u.dy,
447 uwep ? uwep->otyp : 0);
448 #endif /* NOWORM */
449 }
450 if (mdat->mlet == 'a') {
451 if (rn2(2)) {
452 pline("You are splashed by the blob's acid!");
453 losehp_m(rnd(6), mtmp);
454 if (!rn2(30))
455 corrode_armor();
456 }
457 if (!rn2(6))
458 corrode_weapon();
459 }
460 }
461 if (malive && mdat->mlet == 'E' && canseemon(mtmp)
462 && !mtmp->mcan && rn2(3)) {
463 if (mtmp->mcansee) {
464 pline("You are frozen by the floating eye's gaze!");
465 nomul((u.ulevel > 6 || rn2(4)) ? rn1(20, -21) : -200);
466 } else {
467 pline("The blinded floating eye cannot defend itself.");
468 if (!rn2(500))
469 if ((int) u.uluck > LUCKMIN)
470 u.uluck--;
471 }
472 }
473 return (TRUE);
474 }
475