hack/hack.potion.c

   1 /*      $NetBSD: hack.potion.c,v 1.7 2009/06/07 18:30:39 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@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.potion.c,v 1.7 2009/06/07 18:30:39 dholland Exp $");
  67 #endif                          /* not lint */
  68
  69 #include "hack.h"
  70 #include "extern.h"
  71
  72 int
  73 dodrink(void)
  74 {
  75         struct obj     *otmp, *objs;
  76         struct monst   *mtmp;
  77         int             unkn = 0, nothing = 0;
  78
  79         otmp = getobj("!", "drink");
  80         if (!otmp)
  81                 return (0);
  82         if (!strcmp(objects[otmp->otyp].oc_descr, "smoky") && !rn2(13)) {
  83                 ghost_from_bottle();
  84                 goto use_it;
  85         }
  86         switch (otmp->otyp) {
  87         case POT_RESTORE_STRENGTH:
  88                 unkn++;
  89                 pline("Wow!  This makes you feel great!");
  90                 if (u.ustr < u.ustrmax) {
  91                         u.ustr = u.ustrmax;
  92                         flags.botl = 1;
  93                 }
  94                 break;
  95         case POT_BOOZE:
  96                 unkn++;
  97                 pline("Ooph!  This tastes like liquid fire!");
  98                 Confusion += d(3, 8);
  99                 /* the whiskey makes us feel better */
 100                 if (u.uhp < u.uhpmax)
 101                         losehp(-1, "bottle of whiskey");
 102                 if (!rn2(4)) {
 103                         pline("You pass out.");
 104                         multi = -rnd(15);
 105                         nomovemsg = "You awake with a headache.";
 106                 }
 107                 break;
 108         case POT_INVISIBILITY:
 109                 if (Invis || See_invisible)
 110                         nothing++;
 111                 else {
 112                         if (!Blind)
 113                                 pline("Gee!  All of a sudden, you can't see yourself.");
 114                         else
 115                                 pline("You feel rather airy."), unkn++;
 116                         newsym(u.ux, u.uy);
 117                 }
 118                 Invis += rn1(15, 31);
 119                 break;
 120         case POT_FRUIT_JUICE:
 121                 pline("This tastes like fruit juice.");
 122                 lesshungry(20);
 123                 break;
 124         case POT_HEALING:
 125                 pline("You begin to feel better.");
 126                 flags.botl = 1;
 127                 u.uhp += rnd(10);
 128                 if (u.uhp > u.uhpmax)
 129                         u.uhp = ++u.uhpmax;
 130                 if (Blind)
 131                         Blind = 1;      /* see on next move */
 132                 if (Sick)
 133                         Sick = 0;
 134                 break;
 135         case POT_PARALYSIS:
 136                 if (Levitation)
 137                         pline("You are motionlessly suspended.");
 138                 else
 139                         pline("Your feet are frozen to the floor!");
 140                 nomul(-(rn1(10, 25)));
 141                 break;
 142         case POT_MONSTER_DETECTION:
 143                 if (!fmon) {
 144                         strange_feeling(otmp, "You feel threatened.");
 145                         return (1);
 146                 } else {
 147                         cls();
 148                         for (mtmp = fmon; mtmp; mtmp = mtmp->nmon)
 149                                 if (mtmp->mx > 0)
 150                                         at(mtmp->mx, mtmp->my, mtmp->data->mlet);
 151                         prme();
 152                         pline("You sense the presence of monsters.");
 153                         more();
 154                         docrt();
 155                 }
 156                 break;
 157         case POT_OBJECT_DETECTION:
 158                 if (!fobj) {
 159                         strange_feeling(otmp, "You feel a pull downward.");
 160                         return (1);
 161                 } else {
 162                         for (objs = fobj; objs; objs = objs->nobj)
 163                                 if (objs->ox != u.ux || objs->oy != u.uy)
 164                                         goto outobjmap;
 165                         pline("You sense the presence of objects close nearby.");
 166                         break;
 167         outobjmap:
 168                         cls();
 169                         for (objs = fobj; objs; objs = objs->nobj)
 170                                 at(objs->ox, objs->oy, objs->olet);
 171                         prme();
 172                         pline("You sense the presence of objects.");
 173                         more();
 174                         docrt();
 175                 }
 176                 break;
 177         case POT_SICKNESS:
 178                 pline("Yech! This stuff tastes like poison.");
 179                 if (Poison_resistance)
 180                         pline("(But in fact it was biologically contaminated orange juice.)");
 181                 losestr(rn1(4, 3));
 182                 losehp(rnd(10), "contaminated potion");
 183                 break;
 184         case POT_CONFUSION:
 185                 if (!Confusion)
 186                         pline("Huh, What?  Where am I?");
 187                 else
 188                         nothing++;
 189                 Confusion += rn1(7, 16);
 190                 break;
 191         case POT_GAIN_STRENGTH:
 192                 pline("Wow do you feel strong!");
 193                 if (u.ustr >= 118)
 194                         break;  /* > 118 is impossible */
 195                 if (u.ustr > 17)
 196                         u.ustr += rnd(118 - u.ustr);
 197                 else
 198                         u.ustr++;
 199                 if (u.ustr > u.ustrmax)
 200                         u.ustrmax = u.ustr;
 201                 flags.botl = 1;
 202                 break;
 203         case POT_SPEED:
 204                 if (Wounded_legs) {
 205                         heal_legs();
 206                         unkn++;
 207                         break;
 208                 }
 209                 if (!(Fast & ~INTRINSIC))
 210                         pline("You are suddenly moving much faster.");
 211                 else
 212                         pline("Your legs get new energy."), unkn++;
 213                 Fast += rn1(10, 100);
 214                 break;
 215         case POT_BLINDNESS:
 216                 if (!Blind)
 217                         pline("A cloud of darkness falls upon you.");
 218                 else
 219                         nothing++;
 220                 Blind += rn1(100, 250);
 221                 seeoff(0);
 222                 break;
 223         case POT_GAIN_LEVEL:
 224                 pluslvl();
 225                 break;
 226         case POT_EXTRA_HEALING:
 227                 pline("You feel much better.");
 228                 flags.botl = 1;
 229                 u.uhp += d(2, 20) + 1;
 230                 if (u.uhp > u.uhpmax)
 231                         u.uhp = (u.uhpmax += 2);
 232                 if (Blind)
 233                         Blind = 1;
 234                 if (Sick)
 235                         Sick = 0;
 236                 break;
 237         case POT_LEVITATION:
 238                 if (!Levitation)
 239                         float_up();
 240                 else
 241                         nothing++;
 242                 Levitation += rnd(100);
 243                 u.uprops[PROP(RIN_LEVITATION)].p_tofn = float_down;
 244                 break;
 245         default:
 246                 impossible("What a funny potion! (%u)", otmp->otyp);
 247                 return (0);
 248         }
 249         if (nothing) {
 250                 unkn++;
 251                 pline("You have a peculiar feeling for a moment, then it passes.");
 252         }
 253         if (otmp->dknown && !objects[otmp->otyp].oc_name_known) {
 254                 if (!unkn) {
 255                         objects[otmp->otyp].oc_name_known = 1;
 256                         more_experienced(0, 10);
 257                 } else if (!objects[otmp->otyp].oc_uname)
 258                         docall(otmp);
 259         }
 260 use_it:
 261         useup(otmp);
 262         return (1);
 263 }
 264
 265 void
 266 pluslvl(void)
 267 {
 268         int num;
 269
 270         pline("You feel more experienced.");
 271         num = rnd(10);
 272         u.uhpmax += num;
 273         u.uhp += num;
 274         if (u.ulevel < 14) {
 275                 u.uexp = newuexp() + 1;
 276                 pline("Welcome to experience level %u.", ++u.ulevel);
 277         }
 278         flags.botl = 1;
 279 }
 280
 281 void
 282 strange_feeling(struct obj *obj, const char *txt)
 283 {
 284         if (flags.beginner)
 285                 pline("You have a strange feeling for a moment, then it passes.");
 286         else
 287                 pline(txt);
 288         if (!objects[obj->otyp].oc_name_known && !objects[obj->otyp].oc_uname)
 289                 docall(obj);
 290         useup(obj);
 291 }
 292
 293 const char           *const bottlenames[] = {
 294         "bottle", "phial", "flagon", "carafe", "flask", "jar", "vial"
 295 };
 296
 297 void
 298 potionhit(struct monst *mon, struct obj *obj)
 299 {
 300         const char           *botlnam = bottlenames[rn2(SIZE(bottlenames))];
 301         boolean         uclose, isyou = (mon == &youmonst);
 302
 303         if (isyou) {
 304                 uclose = TRUE;
 305                 pline("The %s crashes on your head and breaks into shivers.",
 306                       botlnam);
 307                 losehp(rnd(2), "thrown potion");
 308         } else {
 309                 uclose = (dist(mon->mx, mon->my) < 3);
 310                 /* perhaps 'E' and 'a' have no head? */
 311                 pline("The %s crashes on %s's head and breaks into shivers.",
 312                       botlnam, monnam(mon));
 313                 if (rn2(5) && mon->mhp > 1)
 314                         mon->mhp--;
 315         }
 316         pline("The %s evaporates.", xname(obj));
 317
 318         if (!isyou && !rn2(3))
 319                 switch (obj->otyp) {
 320
 321                 case POT_RESTORE_STRENGTH:
 322                 case POT_GAIN_STRENGTH:
 323                 case POT_HEALING:
 324                 case POT_EXTRA_HEALING:
 325                         if (mon->mhp < mon->mhpmax) {
 326                                 mon->mhp = mon->mhpmax;
 327                                 pline("%s looks sound and hale again!", Monnam(mon));
 328                         }
 329                         break;
 330                 case POT_SICKNESS:
 331                         if (mon->mhpmax > 3)
 332                                 mon->mhpmax /= 2;
 333                         if (mon->mhp > 2)
 334                                 mon->mhp /= 2;
 335                         break;
 336                 case POT_CONFUSION:
 337                 case POT_BOOZE:
 338                         mon->mconf = 1;
 339                         break;
 340                 case POT_INVISIBILITY:
 341                         unpmon(mon);
 342                         mon->minvis = 1;
 343                         pmon(mon);
 344                         break;
 345                 case POT_PARALYSIS:
 346                         mon->mfroz = 1;
 347                         break;
 348                 case POT_SPEED:
 349                         mon->mspeed = MFAST;
 350                         break;
 351                 case POT_BLINDNESS:
 352                         mon->mblinded |= 64 + rn2(64);
 353                         break;
 354                         /*
 355                          * case POT_GAIN_LEVEL: case POT_LEVITATION: case
 356                          * POT_FRUIT_JUICE: case POT_MONSTER_DETECTION: case
 357                          * POT_OBJECT_DETECTION: break;
 358                          */
 359                 }
 360         if (uclose && rn2(5))
 361                 potionbreathe(obj);
 362         obfree(obj, Null(obj));
 363 }
 364
 365 void
 366 potionbreathe(struct obj *obj)
 367 {
 368         switch (obj->otyp) {
 369         case POT_RESTORE_STRENGTH:
 370         case POT_GAIN_STRENGTH:
 371                 if (u.ustr < u.ustrmax)
 372                         u.ustr++, flags.botl = 1;
 373                 break;
 374         case POT_HEALING:
 375         case POT_EXTRA_HEALING:
 376                 if (u.uhp < u.uhpmax)
 377                         u.uhp++, flags.botl = 1;
 378                 break;
 379         case POT_SICKNESS:
 380                 if (u.uhp <= 5)
 381                         u.uhp = 1;
 382                 else
 383                         u.uhp -= 5;
 384                 flags.botl = 1;
 385                 break;
 386         case POT_CONFUSION:
 387         case POT_BOOZE:
 388                 if (!Confusion)
 389                         pline("You feel somewhat dizzy.");
 390                 Confusion += rnd(5);
 391                 break;
 392         case POT_INVISIBILITY:
 393                 pline("For an instant you couldn't see your right hand.");
 394                 break;
 395         case POT_PARALYSIS:
 396                 pline("Something seems to be holding you.");
 397                 nomul(-rnd(5));
 398                 break;
 399         case POT_SPEED:
 400                 Fast += rnd(5);
 401                 pline("Your knees seem more flexible now.");
 402                 break;
 403         case POT_BLINDNESS:
 404                 if (!Blind)
 405                         pline("It suddenly gets dark.");
 406                 Blind += rnd(5);
 407                 seeoff(0);
 408                 break;
 409                 /*
 410                  * case POT_GAIN_LEVEL: case POT_LEVITATION: case
 411                  * POT_FRUIT_JUICE: case POT_MONSTER_DETECTION: case
 412                  * POT_OBJECT_DETECTION: break;
 413                  */
 414         }
 415         /* note: no obfree() */
 416 }
 417
 418 /*
 419  * -- rudimentary -- to do this correctly requires much more work
 420  * -- all sharp weapons get one or more qualities derived from the potions
 421  * -- texts on scrolls may be (partially) wiped out; do they become blank?
 422  * --   or does their effect change, like under Confusion?
 423  * -- all objects may be made invisible by POT_INVISIBILITY
 424  * -- If the flask is small, can one dip a large object? Does it magically
 425  * --   become a jug? Etc.
 426  */
 427 int
 428 dodip(void)
 429 {
 430         struct obj     *potion, *obj;
 431
 432         if (!(obj = getobj("#", "dip")))
 433                 return (0);
 434         if (!(potion = getobj("!", "dip into")))
 435                 return (0);
 436         pline("Interesting...");
 437         if (obj->otyp == ARROW || obj->otyp == DART ||
 438             obj->otyp == CROSSBOW_BOLT) {
 439                 if (potion->otyp == POT_SICKNESS) {
 440                         useup(potion);
 441                         if (obj->spe < 7)
 442                                 obj->spe++;     /* %% */
 443                 }
 444         }
 445         return (1);
 446 }
 447
 448 void
 449 ghost_from_bottle(void)
 450 {
 451         struct monst   *mtmp;
 452
 453         if (!(mtmp = makemon(PM_GHOST, u.ux, u.uy))) {
 454                 pline("This bottle turns out to be empty.");
 455                 return;
 456         }
 457         mnexto(mtmp);
 458         pline("As you open the bottle, an enormous ghost emerges!");
 459         pline("You are frightened to death, and unable to move.");
 460         nomul(-3);
 461 }