1 /* $NetBSD: hack.fight.c,v 1.12 2009/08/12 07:28:40 dholland 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 1.12 2009/08/12 07:28:40 dholland 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 static void monstone(struct monst *); 76 77 /* hitmm returns 0 (miss), 1 (hit), or 2 (kill) */ 78 int 79 hitmm(struct monst *magr, struct monst *mdef) 80 { 81 const struct permonst *pa = magr->data, *pd = mdef->data; 82 int didhit; 83 schar tmp; 84 boolean vis; 85 86 if (strchr("Eauy", pa->mlet)) 87 return (0); 88 if (magr->mfroz) 89 return (0); /* riv05!a3 */ 90 tmp = pd->ac + pa->mlevel; 91 if (mdef->mconf || mdef->mfroz || mdef->msleep) { 92 tmp += 4; 93 if (mdef->msleep) 94 mdef->msleep = 0; 95 } 96 didhit = (tmp > rnd(20)); 97 if (didhit) 98 mdef->msleep = 0; 99 vis = (cansee(magr->mx, magr->my) && cansee(mdef->mx, mdef->my)); 100 if (vis) { 101 char buf[BUFSZ]; 102 if (mdef->mimic) 103 seemimic(mdef); 104 if (magr->mimic) 105 seemimic(magr); 106 (void) snprintf(buf, sizeof(buf), "%s %s", Monnam(magr), 107 didhit ? "hits" : "misses"); 108 pline("%s %s.", buf, monnam(mdef)); 109 } else { 110 boolean far = (dist(magr->mx, magr->my) > 15); 111 if (far != far_noise || moves - noisetime > 10) { 112 far_noise = far; 113 noisetime = moves; 114 pline("You hear some noises%s.", 115 far ? " in the distance" : ""); 116 } 117 } 118 if (didhit) { 119 if (magr->data->mlet == 'c' && !magr->cham) { 120 magr->mhpmax += 3; 121 if (vis) 122 pline("%s is turned to stone!", Monnam(mdef)); 123 else if (mdef->mtame) 124 pline("You have a peculiarly sad feeling for a moment, then it passes."); 125 monstone(mdef); 126 didhit = 2; 127 } else if ((mdef->mhp -= d(pa->damn, pa->damd)) < 1) { 128 magr->mhpmax += 1 + rn2(pd->mlevel + 1); 129 if (magr->mtame && magr->mhpmax > 8 * pa->mlevel) { 130 if (pa == &li_dog) 131 magr->data = pa = &dog; 132 else if (pa == &dog) 133 magr->data = pa = &la_dog; 134 } 135 if (vis) 136 pline("%s is killed!", Monnam(mdef)); 137 else if (mdef->mtame) 138 pline("You have a sad feeling for a moment, then it passes."); 139 mondied(mdef); 140 didhit = 2; 141 } 142 } 143 return (didhit); 144 } 145 146 /* drop (perhaps) a cadaver and remove monster */ 147 void 148 mondied(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 static void 164 monstone(struct monst *mdef) 165 { 166 if (strchr(mlarge, mdef->data->mlet)) 167 mksobj_at(ENORMOUS_ROCK, mdef->mx, mdef->my); 168 else 169 mksobj_at(ROCK, mdef->mx, mdef->my); 170 if (cansee(mdef->mx, mdef->my)) { 171 unpmon(mdef); 172 atl(mdef->mx, mdef->my, fobj->olet); 173 } 174 mondead(mdef); 175 } 176 177 178 int 179 fightm(struct monst *mtmp) 180 { 181 struct monst *mon; 182 for (mon = fmon; mon; mon = mon->nmon) 183 if (mon != mtmp) { 184 if (DIST(mon->mx, mon->my, mtmp->mx, mtmp->my) < 3) 185 if (rn2(4)) 186 return (hitmm(mtmp, mon)); 187 } 188 return (-1); 189 } 190 191 /* u is hit by sth, but not a monster */ 192 int 193 thitu(int tlev, int dam, const char *name) 194 { 195 char buf[BUFSZ]; 196 197 setan(name, buf, sizeof(buf)); 198 if (u.uac + tlev <= rnd(20)) { 199 if (Blind) 200 pline("It misses."); 201 else 202 pline("You are almost hit by %s!", buf); 203 return (0); 204 } else { 205 if (Blind) 206 pline("You are hit!"); 207 else 208 pline("You are hit by %s!", buf); 209 losehp(dam, name); 210 return (1); 211 } 212 } 213 214 const char mlarge[] = "bCDdegIlmnoPSsTUwY',&"; 215 216 /* return TRUE if mon still alive */ 217 boolean 218 hmon(struct monst *mon, struct obj *obj, int thrown) 219 { 220 int tmp; 221 boolean hittxt = FALSE; 222 223 if (!obj) { 224 tmp = rnd(2); /* attack with bare hands */ 225 if (mon->data->mlet == 'c' && !uarmg) { 226 pline("You hit the cockatrice with your bare hands."); 227 pline("You turn to stone ..."); 228 done_in_by(mon); 229 } 230 } else if (obj->olet == WEAPON_SYM || obj->otyp == PICK_AXE) { 231 if (obj == uwep && (obj->otyp > SPEAR || obj->otyp < BOOMERANG)) 232 tmp = rnd(2); 233 else { 234 if (strchr(mlarge, mon->data->mlet)) { 235 tmp = rnd(objects[obj->otyp].wldam); 236 if (obj->otyp == TWO_HANDED_SWORD) 237 tmp += d(2, 6); 238 else if (obj->otyp == FLAIL) 239 tmp += rnd(4); 240 } else { 241 tmp = rnd(objects[obj->otyp].wsdam); 242 } 243 tmp += obj->spe; 244 if (!thrown && obj == uwep && obj->otyp == BOOMERANG 245 && !rn2(3)) { 246 pline("As you hit %s, the boomerang breaks into splinters.", 247 monnam(mon)); 248 freeinv(obj); 249 setworn((struct obj *) 0, obj->owornmask); 250 obfree(obj, (struct obj *) 0); 251 obj = NULL; 252 tmp++; 253 } 254 } 255 if (mon->data->mlet == 'O' && obj != NULL && 256 obj->otyp == TWO_HANDED_SWORD && 257 !strcmp(ONAME(obj), "Orcrist")) 258 tmp += rnd(10); 259 } else 260 switch (obj->otyp) { 261 case HEAVY_IRON_BALL: 262 tmp = rnd(25); 263 break; 264 case EXPENSIVE_CAMERA: 265 pline("You succeed in destroying your camera. Congratulations!"); 266 freeinv(obj); 267 if (obj->owornmask) 268 setworn((struct obj *) 0, obj->owornmask); 269 obfree(obj, (struct obj *) 0); 270 return (TRUE); 271 case DEAD_COCKATRICE: 272 pline("You hit %s with the cockatrice corpse.", 273 monnam(mon)); 274 if (mon->data->mlet == 'c') { 275 tmp = 1; 276 hittxt = TRUE; 277 break; 278 } 279 pline("%s is turned to stone!", Monnam(mon)); 280 killed(mon); 281 return (FALSE); 282 case CLOVE_OF_GARLIC: /* no effect against demons */ 283 if (strchr(UNDEAD, mon->data->mlet)) 284 mon->mflee = 1; 285 tmp = 1; 286 break; 287 default: 288 /* non-weapons can damage because of their weight */ 289 /* (but not too much) */ 290 tmp = obj->owt / 10; 291 if (tmp < 1) 292 tmp = 1; 293 else 294 tmp = rnd(tmp); 295 if (tmp > 6) 296 tmp = 6; 297 } 298 299 /****** NOTE: perhaps obj is undefined!! (if !thrown && BOOMERANG) */ 300 301 tmp += u.udaminc + dbon(); 302 if (u.uswallow) { 303 if ((tmp -= u.uswldtim) <= 0) { 304 pline("Your arms are no longer able to hit."); 305 return (TRUE); 306 } 307 } 308 if (tmp < 1) 309 tmp = 1; 310 mon->mhp -= tmp; 311 if (mon->mhp < 1) { 312 killed(mon); 313 return (FALSE); 314 } 315 if (mon->mtame && (!mon->mflee || mon->mfleetim)) { 316 mon->mflee = 1; /* Rick Richardson */ 317 mon->mfleetim += 10 * rnd(tmp); 318 } 319 if (!hittxt) { 320 if (thrown) { 321 /* this assumes that we cannot throw plural things */ 322 if (obj == NULL) 323 panic("thrown non-object"); 324 hit(xname(obj) /* or: objects[obj->otyp].oc_name */ , 325 mon, exclam(tmp)); 326 } else if (Blind) 327 pline("You hit it."); 328 else 329 pline("You hit %s%s", monnam(mon), exclam(tmp)); 330 } 331 if (u.umconf && !thrown) { 332 if (!Blind) { 333 pline("Your hands stop glowing blue."); 334 if (!mon->mfroz && !mon->msleep) 335 pline("%s appears confused.", Monnam(mon)); 336 } 337 mon->mconf = 1; 338 u.umconf = 0; 339 } 340 return (TRUE); /* mon still alive */ 341 } 342 343 /* try to attack; return FALSE if monster evaded */ 344 /* u.dx and u.dy must be set */ 345 int 346 attack(struct monst *mtmp) 347 { 348 schar tmp; 349 boolean malive = TRUE; 350 const struct permonst *mdat; 351 mdat = mtmp->data; 352 353 u_wipe_engr(3); /* andrew@orca: prevent unlimited pick-axe 354 * attacks */ 355 356 if (mdat->mlet == 'L' && !mtmp->mfroz && !mtmp->msleep && 357 !mtmp->mconf && mtmp->mcansee && !rn2(7) && 358 (m_move(mtmp, 0) == 2 /* he died */ || /* he moved: */ 359 mtmp->mx != u.ux + u.dx || mtmp->my != u.uy + u.dy)) 360 return (FALSE); 361 362 if (mtmp->mimic) { 363 if (!u.ustuck && !mtmp->mflee) 364 u.ustuck = mtmp; 365 switch (levl[u.ux + u.dx][u.uy + u.dy].scrsym) { 366 case '+': 367 pline("The door actually was a Mimic."); 368 break; 369 case '$': 370 pline("The chest was a Mimic!"); 371 break; 372 default: 373 pline("Wait! That's a Mimic!"); 374 } 375 wakeup(mtmp); /* clears mtmp->mimic */ 376 return (TRUE); 377 } 378 wakeup(mtmp); 379 380 if (mtmp->mhide && mtmp->mundetected) { 381 struct obj *obj; 382 383 mtmp->mundetected = 0; 384 if ((obj = o_at(mtmp->mx, mtmp->my)) && !Blind) 385 pline("Wait! There's a %s hiding under %s!", 386 mdat->mname, doname(obj)); 387 return (TRUE); 388 } 389 tmp = u.uluck + u.ulevel + mdat->ac + abon(); 390 if (uwep) { 391 if (uwep->olet == WEAPON_SYM || uwep->otyp == PICK_AXE) 392 tmp += uwep->spe; 393 if (uwep->otyp == TWO_HANDED_SWORD) 394 tmp -= 1; 395 else if (uwep->otyp == DAGGER) 396 tmp += 2; 397 else if (uwep->otyp == CRYSKNIFE) 398 tmp += 3; 399 else if (uwep->otyp == SPEAR && 400 strchr("XDne", mdat->mlet)) 401 tmp += 2; 402 } 403 if (mtmp->msleep) { 404 mtmp->msleep = 0; 405 tmp += 2; 406 } 407 if (mtmp->mfroz) { 408 tmp += 4; 409 if (!rn2(10)) 410 mtmp->mfroz = 0; 411 } 412 if (mtmp->mflee) 413 tmp += 2; 414 if (u.utrap) 415 tmp -= 3; 416 417 /* with a lot of luggage, your agility diminishes */ 418 tmp -= (inv_weight() + 40) / 20; 419 420 if (tmp <= rnd(20) && !u.uswallow) { 421 if (Blind) 422 pline("You miss it."); 423 else 424 pline("You miss %s.", monnam(mtmp)); 425 } else { 426 /* we hit the monster; be careful: it might die! */ 427 428 if ((malive = hmon(mtmp, uwep, 0)) == TRUE) { 429 /* monster still alive */ 430 if (!rn2(25) && mtmp->mhp < mtmp->mhpmax / 2) { 431 mtmp->mflee = 1; 432 if (!rn2(3)) 433 mtmp->mfleetim = rnd(100); 434 if (u.ustuck == mtmp && !u.uswallow) 435 u.ustuck = 0; 436 } 437 #ifndef NOWORM 438 if (mtmp->wormno) 439 cutworm(mtmp, u.ux + u.dx, u.uy + u.dy, 440 uwep ? uwep->otyp : 0); 441 #endif /* NOWORM */ 442 } 443 if (mdat->mlet == 'a') { 444 if (rn2(2)) { 445 pline("You are splashed by the blob's acid!"); 446 losehp_m(rnd(6), mtmp); 447 if (!rn2(30)) 448 corrode_armor(); 449 } 450 if (!rn2(6)) 451 corrode_weapon(); 452 } 453 } 454 if (malive && mdat->mlet == 'E' && canseemon(mtmp) 455 && !mtmp->mcan && rn2(3)) { 456 if (mtmp->mcansee) { 457 pline("You are frozen by the floating eye's gaze!"); 458 nomul((u.ulevel > 6 || rn2(4)) ? rn1(20, -21) : -200); 459 } else { 460 pline("The blinded floating eye cannot defend itself."); 461 if (!rn2(500)) 462 if ((int) u.uluck > LUCKMIN) 463 u.uluck--; 464 } 465 } 466 return (TRUE); 467 } 468