games/hack/hack.eat.c

   1 /*      $NetBSD: hack.eat.c,v 1.13 2019/02/04 03:33:15 mrg 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 "hack.h"
  65 #include "extern.h"
  66 static char POISONOUS[] = "ADKSVabhks";
  67
  68 /* hunger texts used on bottom line (each 8 chars long) */
  69 #define SATIATED        0
  70 #define NOT_HUNGRY      1
  71 #define HUNGRY          2
  72 #define WEAK            3
  73 #define FAINTING        4
  74 #define FAINTED         5
  75 #define STARVED         6
  76
  77 const char           *const hu_stat[] = {
  78         "Satiated",
  79         "        ",
  80         "Hungry  ",
  81         "Weak    ",
  82         "Fainting",
  83         "Fainted ",
  84         "Starved "
  85 };
  86
  87 static int opentin(void);
  88 static int Meatdone(void);
  89 static int unfaint(void);
  90 static void newuhs(boolean);
  91 static int eatcorpse(struct obj *);
  92
  93 void
  94 init_uhunger(void)
  95 {
  96         u.uhunger = 900;
  97         u.uhs = NOT_HUNGRY;
  98 }
  99
 100 #define TTSZ    SIZE(tintxts)
 101 static const struct {
 102         const char           *txt;
 103         int             nut;
 104 }               tintxts[] = {
 105         { "It contains first quality peaches - what a surprise!", 40 },
 106         { "It contains salmon - not bad!", 60 },
 107         { "It contains apple juice - perhaps not what you hoped for.", 20 },
 108         { "It contains some nondescript substance, tasting awfully.", 500 },
 109         { "It contains rotten meat. You vomit.", -50 },
 110         { "It turns out to be empty.", 0 }
 111 };
 112
 113 static struct {
 114         struct obj     *tin;
 115         int             usedtime, reqtime;
 116 }               tin;
 117
 118 static int
 119 opentin(void)
 120 {
 121         int             r;
 122
 123         if (!carried(tin.tin))  /* perhaps it was stolen? */
 124                 return (0);     /* %% probably we should use tinoid */
 125         if (tin.usedtime++ >= 50) {
 126                 pline("You give up your attempt to open the tin.");
 127                 return (0);
 128         }
 129         if (tin.usedtime < tin.reqtime)
 130                 return (1);     /* still busy */
 131
 132         pline("You succeed in opening the tin.");
 133         useup(tin.tin);
 134         r = rn2(2 * TTSZ);
 135         if (r < TTSZ) {
 136                 pline("%s", tintxts[r].txt);
 137                 lesshungry(tintxts[r].nut);
 138                 if (r == 1) {   /* SALMON */
 139                         Glib = rnd(15);
 140                         pline("Eating salmon made your fingers very slippery.");
 141                 }
 142         } else {
 143                 pline("It contains spinach - this makes you feel like Popeye!");
 144                 lesshungry(600);
 145                 if (u.ustr < 118)
 146                         u.ustr += rnd(((u.ustr < 17) ? 19 : 118) - u.ustr);
 147                 if (u.ustr > u.ustrmax)
 148                         u.ustrmax = u.ustr;
 149                 flags.botl = 1;
 150         }
 151         return (0);
 152 }
 153
 154 static int
 155 Meatdone(void)
 156 {
 157         u.usym = '@';
 158         prme();
 159         return 0;
 160 }
 161
 162 int
 163 doeat(void)
 164 {
 165         struct obj     *otmp;
 166         struct objclass *ftmp;
 167         int tmp;
 168
 169         /* Is there some food (probably a heavy corpse) here on the ground? */
 170         if (!Levitation)
 171                 for (otmp = fobj; otmp; otmp = otmp->nobj) {
 172                         if (otmp->ox == u.ux && otmp->oy == u.uy &&
 173                             otmp->olet == FOOD_SYM) {
 174                                 pline("There %s %s here; eat %s? [ny] ",
 175                                       (otmp->quan == 1) ? "is" : "are",
 176                                       doname(otmp),
 177                                       (otmp->quan == 1) ? "it" : "one");
 178                                 if (readchar() == 'y') {
 179                                         if (otmp->quan != 1)
 180                                                 (void) splitobj(otmp, 1);
 181                                         freeobj(otmp);
 182                                         otmp = addinv(otmp);
 183                                         addtobill(otmp);
 184                                         goto gotit;
 185                                 }
 186                         }
 187                 }
 188         otmp = getobj("%", "eat");
 189         if (!otmp)
 190                 return (0);
 191 gotit:
 192         if (otmp->otyp == TIN) {
 193                 if (uwep) {
 194                         switch (uwep->otyp) {
 195                         case CAN_OPENER:
 196                                 tmp = 1;
 197                                 break;
 198                         case DAGGER:
 199                         case CRYSKNIFE:
 200                                 tmp = 3;
 201                                 break;
 202                         case PICK_AXE:
 203                         case AXE:
 204                                 tmp = 6;
 205                                 break;
 206                         default:
 207                                 goto no_opener;
 208                         }
 209                         pline("Using your %s you try to open the tin.",
 210                               aobjnam(uwep, NULL));
 211                 } else {
 212         no_opener:
 213                         pline("It is not so easy to open this tin.");
 214                         if (Glib) {
 215                                 pline("The tin slips out of your hands.");
 216                                 if (otmp->quan > 1) {
 217                                         struct obj     *obj;
 218
 219                                         obj = splitobj(otmp, 1);
 220                                         if (otmp == uwep)
 221                                                 setuwep(obj);
 222                                 }
 223                                 dropx(otmp);
 224                                 return (1);
 225                         }
 226                         tmp = 10 + rn2(1 + 500 / ((int) (u.ulevel + u.ustr)));
 227                 }
 228                 tin.reqtime = tmp;
 229                 tin.usedtime = 0;
 230                 tin.tin = otmp;
 231                 occupation = opentin;
 232                 occtxt = "opening the tin";
 233                 return (1);
 234         }
 235         ftmp = &objects[otmp->otyp];
 236         multi = -ftmp->oc_delay;
 237         if (otmp->otyp >= CORPSE && eatcorpse(otmp))
 238                 goto eatx;
 239         if (!rn2(7) && otmp->otyp != FORTUNE_COOKIE) {
 240                 pline("Blecch!  Rotten food!");
 241                 if (!rn2(4)) {
 242                         pline("You feel rather light headed.");
 243                         Confusion += d(2, 4);
 244                 } else if (!rn2(4) && !Blind) {
 245                         pline("Everything suddenly goes dark.");
 246                         Blind = d(2, 10);
 247                         seeoff(0);
 248                 } else if (!rn2(3)) {
 249                         if (Blind)
 250                                 pline("The world spins and you slap against the floor.");
 251                         else
 252                                 pline("The world spins and goes dark.");
 253                         nomul(-rnd(10));
 254                         nomovemsg = "You are conscious again.";
 255                 }
 256                 lesshungry(ftmp->nutrition / 4);
 257         } else {
 258                 if (u.uhunger >= 1500) {
 259                         pline("You choke over your food.");
 260                         pline("You die...");
 261                         killer = ftmp->oc_name;
 262                         done("choked");
 263                 }
 264                 switch (otmp->otyp) {
 265                 case FOOD_RATION:
 266                         if (u.uhunger <= 200)
 267                                 pline("That food really hit the spot!");
 268                         else if (u.uhunger <= 700)
 269                                 pline("That satiated your stomach!");
 270                         else {
 271                                 pline("You're having a hard time getting all that food down.");
 272                                 multi -= 2;
 273                         }
 274                         lesshungry(ftmp->nutrition);
 275                         if (multi < 0)
 276                                 nomovemsg = "You finished your meal.";
 277                         break;
 278                 case TRIPE_RATION:
 279                         pline("Yak - dog food!");
 280                         more_experienced(1, 0);
 281                         flags.botl = 1;
 282                         if (rn2(2)) {
 283                                 pline("You vomit.");
 284                                 morehungry(20);
 285                                 if (Sick) {
 286                                         Sick = 0;       /* David Neves */
 287                                         pline("What a relief!");
 288                                 }
 289                         } else
 290                                 lesshungry(ftmp->nutrition);
 291                         break;
 292                 default:
 293                         if (otmp->otyp >= CORPSE)
 294                                 pline("That %s tasted terrible!", ftmp->oc_name);
 295                         else
 296                                 pline("That %s was delicious!", ftmp->oc_name);
 297                         lesshungry(ftmp->nutrition);
 298                         if (otmp->otyp == DEAD_LIZARD && (Confusion > 2))
 299                                 Confusion = 2;
 300                         else
 301 #ifdef QUEST
 302                         if (otmp->otyp == CARROT && !Blind) {
 303                                 u.uhorizon++;
 304                                 setsee();
 305                                 pline("Your vision improves.");
 306                         } else
 307 #endif  /* QUEST */
 308                         if (otmp->otyp == FORTUNE_COOKIE) {
 309                                 if (Blind) {
 310                                         pline("This cookie has a scrap of paper inside!");
 311                                         pline("What a pity, that you cannot read it!");
 312                                 } else
 313                                         outrumor();
 314                         } else if (otmp->otyp == LUMP_OF_ROYAL_JELLY) {
 315                                 /* This stuff seems to be VERY healthy! */
 316                                 if (u.ustrmax < 118)
 317                                         u.ustrmax++;
 318                                 if (u.ustr < u.ustrmax)
 319                                         u.ustr++;
 320                                 u.uhp += rnd(20);
 321                                 if (u.uhp > u.uhpmax) {
 322                                         if (!rn2(17))
 323                                                 u.uhpmax++;
 324                                         u.uhp = u.uhpmax;
 325                                 }
 326                                 heal_legs();
 327                         }
 328                         break;
 329                 }
 330         }
 331 eatx:
 332         if (multi < 0 && !nomovemsg) {
 333                 static char     msgbuf[BUFSZ];
 334                 (void) snprintf(msgbuf, sizeof(msgbuf),
 335                                "You finished eating the %s.",
 336                                ftmp->oc_name);
 337                 nomovemsg = msgbuf;
 338         }
 339         useup(otmp);
 340         return (1);
 341 }
 342
 343 /* called in hack.main.c */
 344 void
 345 gethungry(void)
 346 {
 347         --u.uhunger;
 348         if (moves % 2) {
 349                 if (Regeneration)
 350                         u.uhunger--;
 351                 if (Hunger)
 352                         u.uhunger--;
 353                 /*
 354                  * a3:  if(Hunger & LEFT_RING) u.uhunger--; if(Hunger &
 355                  * RIGHT_RING) u.uhunger--; etc.
 356                  */
 357         }
 358         if (moves % 20 == 0) {  /* jimt@asgb */
 359                 if (uleft)
 360                         u.uhunger--;
 361                 if (uright)
 362                         u.uhunger--;
 363         }
 364         newuhs(TRUE);
 365 }
 366
 367 /* called after vomiting and after performing feats of magic */
 368 void
 369 morehungry(int num)
 370 {
 371         u.uhunger -= num;
 372         newuhs(TRUE);
 373 }
 374
 375 /* called after eating something (and after drinking fruit juice) */
 376 void
 377 lesshungry(int num)
 378 {
 379         u.uhunger += num;
 380         newuhs(FALSE);
 381 }
 382
 383 static int
 384 unfaint(void)
 385 {
 386         u.uhs = FAINTING;
 387         flags.botl = 1;
 388         return 0;
 389 }
 390
 391 static void
 392 newuhs(boolean incr)
 393 {
 394         int             newhs, h = u.uhunger;
 395
 396         newhs = (h > 1000) ? SATIATED :
 397                 (h > 150) ? NOT_HUNGRY :
 398                 (h > 50) ? HUNGRY :
 399                 (h > 0) ? WEAK : FAINTING;
 400
 401         if (newhs == FAINTING) {
 402                 if (u.uhs == FAINTED)
 403                         newhs = FAINTED;
 404                 if (u.uhs <= WEAK || rn2(20 - u.uhunger / 10) >= 19) {
 405                         if (u.uhs != FAINTED && multi >= 0 /* %% */ ) {
 406                                 pline("You faint from lack of food.");
 407                                 nomul(-10 + (u.uhunger / 10));
 408                                 nomovemsg = "You regain consciousness.";
 409                                 afternmv = unfaint;
 410                                 newhs = FAINTED;
 411                         }
 412                 } else if (u.uhunger < -(int) (200 + 25 * u.ulevel)) {
 413                         u.uhs = STARVED;
 414                         flags.botl = 1;
 415                         bot();
 416                         pline("You die from starvation.");
 417                         done("starved");
 418                 }
 419         }
 420         if (newhs != u.uhs) {
 421                 if (newhs >= WEAK && u.uhs < WEAK)
 422                         losestr(1);     /* this may kill you -- see below */
 423                 else if (newhs < WEAK && u.uhs >= WEAK && u.ustr < u.ustrmax)
 424                         losestr(-1);
 425                 switch (newhs) {
 426                 case HUNGRY:
 427                         pline((!incr) ? "You only feel hungry now." :
 428                               (u.uhunger < 145) ? "You feel hungry." :
 429                               "You are beginning to feel hungry.");
 430                         break;
 431                 case WEAK:
 432                         pline((!incr) ? "You feel weak now." :
 433                               (u.uhunger < 45) ? "You feel weak." :
 434                               "You are beginning to feel weak.");
 435                         break;
 436                 }
 437                 u.uhs = newhs;
 438                 flags.botl = 1;
 439                 if (u.uhp < 1) {
 440                         pline("You die from hunger and exhaustion.");
 441                         killer = "exhaustion";
 442                         done("starved");
 443                 }
 444         }
 445 }
 446
 447 #define CORPSE_I_TO_C(otyp)     (char) ((otyp >= DEAD_ACID_BLOB)\
 448                      ?  'a' + (otyp - DEAD_ACID_BLOB)\
 449                      :  '@' + (otyp - DEAD_HUMAN))
 450 int
 451 poisonous(struct obj *otmp)
 452 {
 453         return (strchr(POISONOUS, CORPSE_I_TO_C(otmp->otyp)) != 0);
 454 }
 455
 456 /* returns 1 if some text was printed */
 457 static int
 458 eatcorpse(struct obj *otmp)
 459 {
 460         char            let = CORPSE_I_TO_C(otmp->otyp);
 461         int             tp = 0;
 462         if (let != 'a' && moves > otmp->age + 50 + rn2(100)) {
 463                 tp++;
 464                 pline("Ulch -- that meat was tainted!");
 465                 pline("You get very sick.");
 466                 Sick = 10 + rn2(10);
 467                 u.usick_cause = objects[otmp->otyp].oc_name;
 468         } else if (strchr(POISONOUS, let) && rn2(5)) {
 469                 tp++;
 470                 pline("Ecch -- that must have been poisonous!");
 471                 if (!Poison_resistance) {
 472                         losestr(rnd(4));
 473                         losehp(rnd(15), "poisonous corpse");
 474                 } else
 475                         pline("You don't seem affected by the poison.");
 476         } else if (strchr("ELNOPQRUuxz", let) && rn2(5)) {
 477                 tp++;
 478                 pline("You feel sick.");
 479                 losehp(rnd(8), "cadaver");
 480         }
 481         switch (let) {
 482         case 'L':
 483         case 'N':
 484         case 't':
 485                 Teleportation |= INTRINSIC;
 486                 break;
 487         case 'W':
 488                 pluslvl();
 489                 break;
 490         case 'n':
 491                 u.uhp = u.uhpmax;
 492                 flags.botl = 1;
 493                 /* FALLTHROUGH */
 494         case '@':
 495                 pline("You cannibal! You will be sorry for this!");
 496                 /* not tp++; */
 497                 /* FALLTHROUGH */
 498         case 'd':
 499                 Aggravate_monster |= INTRINSIC;
 500                 break;
 501         case 'I':
 502                 if (!Invis) {
 503                         Invis = 50 + rn2(100);
 504                         if (!See_invisible)
 505                                 newsym(u.ux, u.uy);
 506                 } else {
 507                         Invis |= INTRINSIC;
 508                         See_invisible |= INTRINSIC;
 509                 }
 510                 /* FALLTHROUGH */
 511         case 'y':
 512 #ifdef QUEST
 513                 u.uhorizon++;
 514 #endif  /* QUEST */
 515                 /* FALLTHROUGH */
 516         case 'B':
 517                 Confusion = 50;
 518                 break;
 519         case 'D':
 520                 Fire_resistance |= INTRINSIC;
 521                 break;
 522         case 'E':
 523                 Telepat |= INTRINSIC;
 524                 break;
 525         case 'F':
 526         case 'Y':
 527                 Cold_resistance |= INTRINSIC;
 528                 break;
 529         case 'k':
 530         case 's':
 531                 Poison_resistance |= INTRINSIC;
 532                 break;
 533         case 'c':
 534                 pline("You turn to stone.");
 535                 killer = "dead cockatrice";
 536                 done("died");
 537                 break;
 538         case 'a':
 539                 if (Stoned) {
 540                         pline("What a pity - you just destroyed a future piece of art!");
 541                         tp++;
 542                         Stoned = 0;
 543                 }
 544                 break;
 545         case 'M':
 546                 pline("You cannot resist the temptation to mimic a treasure chest.");
 547                 tp++;
 548                 nomul(-30);
 549                 afternmv = Meatdone;
 550                 nomovemsg = "You now again prefer mimicking a human.";
 551                 u.usym = '$';
 552                 prme();
 553                 break;
 554         }
 555         return (tp);
 556 }