hack/hack.fight.c

   1 /*      $NetBSD: hack.fight.c,v 1.6 2003/04/02 18:36:36 jsm 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@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 1.6 2003/04/02 18:36:36 jsm 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             hit;
  82         schar           tmp;
  83         boolean         vis;
  84         if (strchr("Eauy", pa->mlet))
  85                 return (0);
  86         if (magr->mfroz)
  87                 return (0);     /* riv05!a3 */
  88         tmp = pd->ac + pa->mlevel;
  89         if (mdef->mconf || mdef->mfroz || mdef->msleep) {
  90                 tmp += 4;
  91                 if (mdef->msleep)
  92                         mdef->msleep = 0;
  93         }
  94         hit = (tmp > rnd(20));
  95         if (hit)
  96                 mdef->msleep = 0;
  97         vis = (cansee(magr->mx, magr->my) && cansee(mdef->mx, mdef->my));
  98         if (vis) {
  99                 char            buf[BUFSZ];
 100                 if (mdef->mimic)
 101                         seemimic(mdef);
 102                 if (magr->mimic)
 103                         seemimic(magr);
 104                 (void) sprintf(buf, "%s %s", Monnam(magr),
 105                                hit ? "hits" : "misses");
 106                 pline("%s %s.", buf, monnam(mdef));
 107         } else {
 108                 boolean         far = (dist(magr->mx, magr->my) > 15);
 109                 if (far != far_noise || moves - noisetime > 10) {
 110                         far_noise = far;
 111                         noisetime = moves;
 112                         pline("You hear some noises%s.",
 113                               far ? " in the distance" : "");
 114                 }
 115         }
 116         if (hit) {
 117                 if (magr->data->mlet == 'c' && !magr->cham) {
 118                         magr->mhpmax += 3;
 119                         if (vis)
 120                                 pline("%s is turned to stone!", Monnam(mdef));
 121                         else if (mdef->mtame)
 122                                 pline("You have a peculiarly sad feeling for a moment, then it passes.");
 123                         monstone(mdef);
 124                         hit = 2;
 125                 } else if ((mdef->mhp -= d(pa->damn, pa->damd)) < 1) {
 126                         magr->mhpmax += 1 + rn2(pd->mlevel + 1);
 127                         if (magr->mtame && magr->mhpmax > 8 * pa->mlevel) {
 128                                 if (pa == &li_dog)
 129                                         magr->data = pa = &dog;
 130                                 else if (pa == &dog)
 131                                         magr->data = pa = &la_dog;
 132                         }
 133                         if (vis)
 134                                 pline("%s is killed!", Monnam(mdef));
 135                         else if (mdef->mtame)
 136                                 pline("You have a sad feeling for a moment, then it passes.");
 137                         mondied(mdef);
 138                         hit = 2;
 139                 }
 140         }
 141         return (hit);
 142 }
 143
 144 /* drop (perhaps) a cadaver and remove monster */
 145 void
 146 mondied(mdef)
 147         struct monst   *mdef;
 148 {
 149         const struct permonst *pd = mdef->data;
 150         if (letter(pd->mlet) && rn2(3)) {
 151                 (void) mkobj_at(pd->mlet, mdef->mx, mdef->my);
 152                 if (cansee(mdef->mx, mdef->my)) {
 153                         unpmon(mdef);
 154                         atl(mdef->mx, mdef->my, fobj->olet);
 155                 }
 156                 stackobj(fobj);
 157         }
 158         mondead(mdef);
 159 }
 160
 161 /* drop a rock and remove monster */
 162 void
 163 monstone(mdef)
 164         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(mtmp)
 180         struct monst   *mtmp;
 181 {
 182         struct monst   *mon;
 183         for (mon = fmon; mon; mon = mon->nmon)
 184                 if (mon != mtmp) {
 185                         if (DIST(mon->mx, mon->my, mtmp->mx, mtmp->my) < 3)
 186                                 if (rn2(4))
 187                                         return (hitmm(mtmp, mon));
 188                 }
 189         return (-1);
 190 }
 191
 192 /* u is hit by sth, but not a monster */
 193 int
 194 thitu(tlev, dam, name)
 195         int tlev, dam;
 196         const char           *name;
 197 {
 198         char            buf[BUFSZ];
 199         setan(name, buf);
 200         if (u.uac + tlev <= rnd(20)) {
 201                 if (Blind)
 202                         pline("It misses.");
 203                 else
 204                         pline("You are almost hit by %s!", buf);
 205                 return (0);
 206         } else {
 207                 if (Blind)
 208                         pline("You are hit!");
 209                 else
 210                         pline("You are hit by %s!", buf);
 211                 losehp(dam, name);
 212                 return (1);
 213         }
 214 }
 215
 216 char            mlarge[] = "bCDdegIlmnoPSsTUwY',&";
 217
 218 boolean
 219 hmon(mon, obj, thrown)          /* return TRUE if mon still alive */
 220         struct monst   *mon;
 221         struct obj     *obj;
 222         int thrown;
 223 {
 224         int tmp;
 225         boolean         hittxt = FALSE;
 226
 227         if (!obj) {
 228                 tmp = rnd(2);   /* attack with bare hands */
 229                 if (mon->data->mlet == 'c' && !uarmg) {
 230                         pline("You hit the cockatrice with your bare hands.");
 231                         pline("You turn to stone ...");
 232                         done_in_by(mon);
 233                 }
 234         } else if (obj->olet == WEAPON_SYM || obj->otyp == PICK_AXE) {
 235                 if (obj == uwep && (obj->otyp > SPEAR || obj->otyp < BOOMERANG))
 236                         tmp = rnd(2);
 237                 else {
 238                         if (strchr(mlarge, mon->data->mlet)) {
 239                                 tmp = rnd(objects[obj->otyp].wldam);
 240                                 if (obj->otyp == TWO_HANDED_SWORD)
 241                                         tmp += d(2, 6);
 242                                 else if (obj->otyp == FLAIL)
 243                                         tmp += rnd(4);
 244                         } else {
 245                                 tmp = rnd(objects[obj->otyp].wsdam);
 246                         }
 247                         tmp += obj->spe;
 248                         if (!thrown && obj == uwep && obj->otyp == BOOMERANG
 249                             && !rn2(3)) {
 250                                 pline("As you hit %s, the boomerang breaks into splinters.",
 251                                       monnam(mon));
 252                                 freeinv(obj);
 253                                 setworn((struct obj *) 0, obj->owornmask);
 254                                 obfree(obj, (struct obj *) 0);
 255                                 tmp++;
 256                         }
 257                 }
 258                 if (mon->data->mlet == 'O' && obj->otyp == TWO_HANDED_SWORD &&
 259                     !strcmp(ONAME(obj), "Orcrist"))
 260                         tmp += rnd(10);
 261         } else
 262                 switch (obj->otyp) {
 263                 case HEAVY_IRON_BALL:
 264                         tmp = rnd(25);
 265                         break;
 266                 case EXPENSIVE_CAMERA:
 267                         pline("You succeed in destroying your camera. Congratulations!");
 268                         freeinv(obj);
 269                         if (obj->owornmask)
 270                                 setworn((struct obj *) 0, obj->owornmask);
 271                         obfree(obj, (struct obj *) 0);
 272                         return (TRUE);
 273                 case DEAD_COCKATRICE:
 274                         pline("You hit %s with the cockatrice corpse.",
 275                               monnam(mon));
 276                         if (mon->data->mlet == 'c') {
 277                                 tmp = 1;
 278                                 hittxt = TRUE;
 279                                 break;
 280                         }
 281                         pline("%s is turned to stone!", Monnam(mon));
 282                         killed(mon);
 283                         return (FALSE);
 284                 case CLOVE_OF_GARLIC:   /* no effect against demons */
 285                         if (strchr(UNDEAD, mon->data->mlet))
 286                                 mon->mflee = 1;
 287                         tmp = 1;
 288                         break;
 289                 default:
 290                         /* non-weapons can damage because of their weight */
 291                         /* (but not too much) */
 292                         tmp = obj->owt / 10;
 293                         if (tmp < 1)
 294                                 tmp = 1;
 295                         else
 296                                 tmp = rnd(tmp);
 297                         if (tmp > 6)
 298                                 tmp = 6;
 299                 }
 300
 301         /****** NOTE: perhaps obj is undefined!! (if !thrown && BOOMERANG) */
 302
 303         tmp += u.udaminc + dbon();
 304         if (u.uswallow) {
 305                 if ((tmp -= u.uswldtim) <= 0) {
 306                         pline("Your arms are no longer able to hit.");
 307                         return (TRUE);
 308                 }
 309         }
 310         if (tmp < 1)
 311                 tmp = 1;
 312         mon->mhp -= tmp;
 313         if (mon->mhp < 1) {
 314                 killed(mon);
 315                 return (FALSE);
 316         }
 317         if (mon->mtame && (!mon->mflee || mon->mfleetim)) {
 318                 mon->mflee = 1; /* Rick Richardson */
 319                 mon->mfleetim += 10 * rnd(tmp);
 320         }
 321         if (!hittxt) {
 322                 if (thrown)
 323                         /* this assumes that we cannot throw plural things */
 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(mtmp)
 347         struct monst   *mtmp;
 348 {
 349         schar           tmp;
 350         boolean         malive = TRUE;
 351         const struct permonst *mdat;
 352         mdat = mtmp->data;
 353
 354         u_wipe_engr(3);         /* andrew@orca: prevent unlimited pick-axe
 355                                  * attacks */
 356
 357         if (mdat->mlet == 'L' && !mtmp->mfroz && !mtmp->msleep &&
 358             !mtmp->mconf && mtmp->mcansee && !rn2(7) &&
 359             (m_move(mtmp, 0) == 2 /* he died */ ||      /* he moved: */
 360              mtmp->mx != u.ux + u.dx || mtmp->my != u.uy + u.dy))
 361                 return (FALSE);
 362
 363         if (mtmp->mimic) {
 364                 if (!u.ustuck && !mtmp->mflee)
 365                         u.ustuck = mtmp;
 366                 switch (levl[u.ux + u.dx][u.uy + u.dy].scrsym) {
 367                 case '+':
 368                         pline("The door actually was a Mimic.");
 369                         break;
 370                 case '$':
 371                         pline("The chest was a Mimic!");
 372                         break;
 373                 default:
 374                         pline("Wait! That's a Mimic!");
 375                 }
 376                 wakeup(mtmp);   /* clears mtmp->mimic */
 377                 return (TRUE);
 378         }
 379         wakeup(mtmp);
 380
 381         if (mtmp->mhide && mtmp->mundetected) {
 382                 struct obj     *obj;
 383
 384                 mtmp->mundetected = 0;
 385                 if ((obj = o_at(mtmp->mx, mtmp->my)) && !Blind)
 386                         pline("Wait! There's a %s hiding under %s!",
 387                               mdat->mname, doname(obj));
 388                 return (TRUE);
 389         }
 390         tmp = u.uluck + u.ulevel + mdat->ac + abon();
 391         if (uwep) {
 392                 if (uwep->olet == WEAPON_SYM || uwep->otyp == PICK_AXE)
 393                         tmp += uwep->spe;
 394                 if (uwep->otyp == TWO_HANDED_SWORD)
 395                         tmp -= 1;
 396                 else if (uwep->otyp == DAGGER)
 397                         tmp += 2;
 398                 else if (uwep->otyp == CRYSKNIFE)
 399                         tmp += 3;
 400                 else if (uwep->otyp == SPEAR &&
 401                          strchr("XDne", mdat->mlet))
 402                         tmp += 2;
 403         }
 404         if (mtmp->msleep) {
 405                 mtmp->msleep = 0;
 406                 tmp += 2;
 407         }
 408         if (mtmp->mfroz) {
 409                 tmp += 4;
 410                 if (!rn2(10))
 411                         mtmp->mfroz = 0;
 412         }
 413         if (mtmp->mflee)
 414                 tmp += 2;
 415         if (u.utrap)
 416                 tmp -= 3;
 417
 418         /* with a lot of luggage, your agility diminishes */
 419         tmp -= (inv_weight() + 40) / 20;
 420
 421         if (tmp <= rnd(20) && !u.uswallow) {
 422                 if (Blind)
 423                         pline("You miss it.");
 424                 else
 425                         pline("You miss %s.", monnam(mtmp));
 426         } else {
 427                 /* we hit the monster; be careful: it might die! */
 428
 429                 if ((malive = hmon(mtmp, uwep, 0)) == TRUE) {
 430                         /* monster still alive */
 431                         if (!rn2(25) && mtmp->mhp < mtmp->mhpmax / 2) {
 432                                 mtmp->mflee = 1;
 433                                 if (!rn2(3))
 434                                         mtmp->mfleetim = rnd(100);
 435                                 if (u.ustuck == mtmp && !u.uswallow)
 436                                         u.ustuck = 0;
 437                         }
 438 #ifndef NOWORM
 439                         if (mtmp->wormno)
 440                                 cutworm(mtmp, u.ux + u.dx, u.uy + u.dy,
 441                                         uwep ? uwep->otyp : 0);
 442 #endif  /* NOWORM */
 443                 }
 444                 if (mdat->mlet == 'a') {
 445                         if (rn2(2)) {
 446                                 pline("You are splashed by the blob's acid!");
 447                                 losehp_m(rnd(6), mtmp);
 448                                 if (!rn2(30))
 449                                         corrode_armor();
 450                         }
 451                         if (!rn2(6))
 452                                 corrode_weapon();
 453                 }
 454         }
 455         if (malive && mdat->mlet == 'E' && canseemon(mtmp)
 456             && !mtmp->mcan && rn2(3)) {
 457                 if (mtmp->mcansee) {
 458                         pline("You are frozen by the floating eye's gaze!");
 459                         nomul((u.ulevel > 6 || rn2(4)) ? rn1(20, -21) : -200);
 460                 } else {
 461                         pline("The blinded floating eye cannot defend itself.");
 462                         if (!rn2(500))
 463                                 if ((int) u.uluck > LUCKMIN)
 464                                         u.uluck--;
 465                 }
 466         }
 467         return (TRUE);
 468 }