actions.c

   1 #include <stdlib.h>
   2 #include <stdbool.h>
   3 #include <string.h>
   4 #include "advent.h"
   5 #include "dungeon.h"
   6
   7 static int fill(token_t, token_t);
   8
   9 static void state_change(long obj, long state)
  10 /* Object must have a change-message list for this to be useful; only some do */
  11 {
  12     game.prop[obj] = state;
  13     pspeak(obj, change, state, true);
  14 }
  15
  16 static int attack(struct command_t *command)
  17 /*  Attack.  Assume target if unambiguous.  "Throw" also links here.
  18  *  Attackable objects fall into two categories: enemies (snake,
  19  *  dwarf, etc.)  and others (bird, clam, machine).  Ambiguous if 2
  20  *  enemies, or no enemies but 2 others. */
  21 {
  22     vocab_t verb = command->verb;
  23     vocab_t obj = command->obj;
  24
  25     if (obj == NO_OBJECT ||
  26         obj == INTRANSITIVE) {
  27         int changes = 0;
  28         if (atdwrf(game.loc) > 0) {
  29             obj = DWARF;
  30             ++changes;
  31         }
  32         if (HERE(SNAKE)) {
  33             obj = SNAKE;
  34             ++changes;
  35         }
  36         if (AT(DRAGON) && game.prop[DRAGON] == DRAGON_BARS) {
  37             obj = DRAGON;
  38             ++changes;
  39         }
  40         if (AT(TROLL)) {
  41             obj = TROLL;
  42             ++changes;
  43         }
  44         if (AT(OGRE)) {
  45             obj = OGRE;
  46             ++changes;
  47         }
  48         if (HERE(BEAR) && game.prop[BEAR] == UNTAMED_BEAR) {
  49             obj = BEAR;
  50             ++changes;
  51         }
  52         /* check for low-priority targets */
  53         if (obj == NO_OBJECT) {
  54             /* Can't attack bird or machine by throwing axe. */
  55             if (HERE(BIRD) && verb != THROW) {
  56                 obj = BIRD;
  57                 ++changes;
  58             }
  59             if (HERE(VEND) && verb != THROW) {
  60                 obj = VEND;
  61                 ++changes;
  62             }
  63             /* Clam and oyster both treated as clam for intransitive case;
  64              * no harm done. */
  65             if (HERE(CLAM) || HERE(OYSTER)) {
  66                 obj = CLAM;
  67                 ++changes;
  68             }
  69         }
  70         if (changes >= 2)
  71             return GO_UNKNOWN;
  72     }
  73
  74     if (obj == BIRD) {
  75         if (game.closed) {
  76             rspeak(UNHAPPY_BIRD);
  77         } else {
  78             DESTROY(BIRD);
  79             rspeak(BIRD_DEAD);
  80         }
  81         return GO_CLEAROBJ;
  82     }
  83     if (obj == VEND) {
  84         state_change(VEND,
  85                      game.prop[VEND] == VEND_BLOCKS ? VEND_UNBLOCKS : VEND_BLOCKS);
  86         return GO_CLEAROBJ;
  87     }
  88
  89     if (obj == BEAR) {
  90         switch (game.prop[BEAR]) {
  91         case UNTAMED_BEAR:
  92             rspeak(BEAR_HANDS);
  93             break;
  94         case SITTING_BEAR:
  95             rspeak(BEAR_CONFUSED);
  96             break;
  97         case CONTENTED_BEAR:
  98             rspeak(BEAR_CONFUSED);
  99             break;
 100         case BEAR_DEAD:
 101             rspeak(ALREADY_DEAD);
 102             break;
 103         }
 104         return GO_CLEAROBJ;
 105     }
 106     if (obj == DRAGON && game.prop[DRAGON] == DRAGON_BARS) {
 107         /*  Fun stuff for dragon.  If he insists on attacking it, win!
 108          *  Set game.prop to dead, move dragon to central loc (still
 109          *  fixed), move rug there (not fixed), and move him there,
 110          *  too.  Then do a null motion to get new description. */
 111         rspeak(BARE_HANDS_QUERY);
 112         if (silent_yes()) {
 113             // FIXME: setting wd1 is a workaround for broken logic
 114             command->wd1 = token_to_packed("Y");
 115         } else {
 116             // FIXME: setting wd1 is a workaround for broken logic
 117             command->wd1 = token_to_packed("N");
 118             return GO_CHECKFOO;
 119         }
 120         state_change(DRAGON, DRAGON_DEAD);
 121         game.prop[RUG] = RUG_FLOOR;
 122         /* FIXME: Arithmetic on location values */
 123         int k = (objects[DRAGON].plac + objects[DRAGON].fixd) / 2;
 124         move(DRAGON + NOBJECTS, -1);
 125         move(RUG + NOBJECTS, 0);
 126         move(DRAGON, k);
 127         move(RUG, k);
 128         drop(BLOOD, k);
 129         for (obj = 1; obj <= NOBJECTS; obj++) {
 130             if (game.place[obj] == objects[DRAGON].plac ||
 131                 game.place[obj] == objects[DRAGON].fixd)
 132                 move(obj, k);
 133         }
 134         game.loc = k;
 135         return GO_MOVE;
 136     }
 137
 138     if (obj == OGRE) {
 139         rspeak(OGRE_DODGE);
 140         if (atdwrf(game.loc) == 0)
 141             return GO_CLEAROBJ;
 142
 143         rspeak(KNIFE_THROWN);
 144         DESTROY(OGRE);
 145         int dwarves = 0;
 146         for (int i = 1; i < PIRATE; i++) {
 147             if (game.dloc[i] == game.loc) {
 148                 ++dwarves;
 149                 game.dloc[i] = LOC_LONGWEST;
 150                 game.dseen[i] = false;
 151             }
 152         }
 153         rspeak((dwarves > 1) ?
 154                OGRE_PANIC1 :
 155                OGRE_PANIC2);
 156         return GO_CLEAROBJ;
 157     }
 158
 159     switch (obj) {
 160     case NO_OBJECT:
 161         rspeak(NO_TARGET);
 162         break;
 163     case CLAM:
 164     case OYSTER:
 165         rspeak(SHELL_IMPERVIOUS);
 166         break;
 167     case SNAKE:
 168         rspeak(SNAKE_WARNING);
 169         break;
 170     case DWARF:
 171         if (game.closed) {
 172             return GO_DWARFWAKE;
 173         }
 174         rspeak(BARE_HANDS_QUERY);
 175         break;
 176     case DRAGON:
 177         rspeak(ALREADY_DEAD);
 178         break;
 179     case TROLL:
 180         rspeak(ROCKY_TROLL);
 181         break;
 182     default:
 183         rspeak(actions[verb].message);
 184     }
 185     return GO_CLEAROBJ;
 186 }
 187
 188 static int bigwords(token_t foo)
 189 /*  FEE FIE FOE FOO (AND FUM).  Advance to next state if given in proper order.
 190  *  Look up foo in special section of vocab to determine which word we've got.
 191  *  Last word zips the eggs back to the giant room (unless already there). */
 192 {
 193     char word[TOKLEN + 1];
 194     packed_to_token(foo, word);
 195     int k = (int) get_special_vocab_id(word);
 196     if (game.foobar != 1 - k) {
 197         if (game.foobar != 0 && game.loc == LOC_GIANTROOM) {
 198             rspeak( START_OVER);
 199         } else {
 200             rspeak(NOTHING_HAPPENS);
 201         }
 202         return GO_CLEAROBJ;
 203     } else {
 204         game.foobar = k;
 205         if (k != 4) {
 206             rspeak(OK_MAN);
 207             return GO_CLEAROBJ;
 208         }
 209         game.foobar = 0;
 210         if (game.place[EGGS] == objects[EGGS].plac ||
 211             (TOTING(EGGS) && game.loc == objects[EGGS].plac)) {
 212             rspeak(NOTHING_HAPPENS);
 213             return GO_CLEAROBJ;
 214         } else {
 215             /*  Bring back troll if we steal the eggs back from him before
 216              *  crossing. */
 217             if (game.place[EGGS] == LOC_NOWHERE && game.place[TROLL] == LOC_NOWHERE && game.prop[TROLL] == TROLL_UNPAID)
 218                 game.prop[TROLL] = TROLL_PAIDONCE;
 219             k = EGGS_DONE;
 220             if (HERE(EGGS))
 221                 k = EGGS_VANISHED;
 222             if (game.loc == objects[EGGS].plac)
 223                 k = EGGS_HERE;
 224             move(EGGS, objects[EGGS].plac);
 225             pspeak(EGGS, look, k, true);
 226             return GO_CLEAROBJ;
 227         }
 228     }
 229 }
 230
 231 static void blast(void)
 232 /*  Blast.  No effect unless you've got dynamite, which is a neat trick! */
 233 {
 234     if (game.prop[ROD2] < 0 ||
 235         !game.closed)
 236         rspeak(REQUIRES_DYNAMITE);
 237     else {
 238         game.bonus = VICTORY_MESSAGE;
 239         if (game.loc == LOC_NE)
 240             game.bonus = DEFEAT_MESSAGE;
 241         if (HERE(ROD2))
 242             game.bonus = SPLATTER_MESSAGE;
 243         rspeak(game.bonus);
 244         terminate(endgame);
 245     }
 246 }
 247
 248 static int vbreak(token_t verb, token_t obj)
 249 /*  Break.  Only works for mirror in repository and, of course, the vase. */
 250 {
 251     if (obj == MIRROR) {
 252         if (game.closed) {
 253             rspeak(BREAK_MIRROR);
 254             return GO_DWARFWAKE;
 255         } else {
 256             rspeak(TOO_FAR);
 257             return GO_CLEAROBJ;
 258         }
 259     }
 260     if (obj == VASE && game.prop[VASE] == VASE_WHOLE) {
 261         if (TOTING(VASE))
 262             drop(VASE, game.loc);
 263         state_change(VASE, VASE_BROKEN);
 264         game.fixed[VASE] = -1;
 265         return GO_CLEAROBJ;
 266     }
 267     rspeak(actions[verb].message);
 268     return (GO_CLEAROBJ);
 269 }
 270
 271 static int brief(void)
 272 /*  Brief.  Intransitive only.  Suppress long descriptions after first time. */
 273 {
 274     game.abbnum = 10000;
 275     game.detail = 3;
 276     rspeak(BRIEF_CONFIRM);
 277     return GO_CLEAROBJ;
 278 }
 279
 280 static int vcarry(token_t verb, token_t obj)
 281 /*  Carry an object.  Special cases for bird and cage (if bird in cage, can't
 282  *  take one without the other).  Liquids also special, since they depend on
 283  *  status of bottle.  Also various side effects, etc. */
 284 {
 285     if (obj == INTRANSITIVE) {
 286         /*  Carry, no object given yet.  OK if only one object present. */
 287         if (game.atloc[game.loc] == 0 ||
 288             game.link[game.atloc[game.loc]] != 0 ||
 289             atdwrf(game.loc) > 0)
 290             return GO_UNKNOWN;
 291         obj = game.atloc[game.loc];
 292     }
 293
 294     if (TOTING(obj)) {
 295         rspeak(ALREADY_CARRYING);
 296         return GO_CLEAROBJ;
 297     }
 298
 299     if (obj == MESSAG) {
 300         rspeak(REMOVE_MESSAGE);
 301         DESTROY(MESSAG);
 302         return GO_CLEAROBJ;
 303     }
 304
 305     if (game.fixed[obj] != 0) {
 306         if (obj == PLANT && game.prop[PLANT] <= 0) {
 307             rspeak(DEEP_ROOTS);
 308             return GO_CLEAROBJ;
 309         }
 310         if (obj == BEAR && game.prop[BEAR] == SITTING_BEAR) {
 311             rspeak(BEAR_CHAINED);
 312             return GO_CLEAROBJ;
 313         }
 314         if (obj == CHAIN && game.prop[BEAR] != UNTAMED_BEAR) {
 315             rspeak(STILL_LOCKED);
 316             return GO_CLEAROBJ;
 317         }
 318         if (obj == URN) {
 319             rspeak(URN_NOBUDGE);
 320             return GO_CLEAROBJ;
 321         }
 322         if (obj == CAVITY) {
 323             rspeak(DOUGHNUT_HOLES);
 324             return GO_CLEAROBJ;
 325         }
 326         if (obj == BLOOD) {
 327             rspeak(FEW_DROPS);
 328             return GO_CLEAROBJ;
 329         }
 330         if (obj == RUG && game.prop[RUG] == RUG_HOVER) {
 331             rspeak(RUG_HOVERS);
 332             return GO_CLEAROBJ;
 333         }
 334         if (obj == SIGN) {
 335             rspeak(HAND_PASSTHROUGH);
 336             return GO_CLEAROBJ;
 337         }
 338         rspeak(YOU_JOKING);
 339         return GO_CLEAROBJ;
 340     }
 341
 342     if (obj == WATER ||
 343         obj == OIL) {
 344         if (!HERE(BOTTLE) ||
 345             LIQUID() != obj) {
 346             if (TOTING(BOTTLE)) {
 347                 if (game.prop[BOTTLE] == EMPTY_BOTTLE) {
 348                     return (fill(verb, BOTTLE));
 349                 } else if (game.prop[BOTTLE] != EMPTY_BOTTLE)
 350                     rspeak(BOTTLE_FULL);
 351                 return GO_CLEAROBJ;
 352             }
 353             rspeak(NO_CONTAINER);
 354             return GO_CLEAROBJ;
 355         }
 356         obj = BOTTLE;
 357     }
 358
 359     if (game.holdng >= INVLIMIT) {
 360         rspeak(CARRY_LIMIT);
 361         return GO_CLEAROBJ;
 362
 363     }
 364
 365     if (obj == BIRD && game.prop[BIRD] != BIRD_CAGED && STASHED(BIRD) != BIRD_CAGED) {
 366         if (game.prop[BIRD] == BIRD_FOREST_UNCAGED) {
 367             DESTROY(BIRD);
 368             rspeak(BIRD_CRAP);
 369             return GO_CLEAROBJ;
 370         }
 371         if (!TOTING(CAGE)) {
 372             rspeak(CANNOT_CARRY);
 373             return GO_CLEAROBJ;
 374         }
 375         if (TOTING(ROD)) {
 376             rspeak(BIRD_EVADES);
 377             return GO_CLEAROBJ;
 378         }
 379         game.prop[BIRD] = BIRD_CAGED;
 380     }
 381     if ((obj == BIRD ||
 382          obj == CAGE) &&
 383         (game.prop[BIRD] == BIRD_CAGED || STASHED(BIRD) == BIRD_CAGED))
 384         /* expression maps BIRD to CAGE and CAGE to BIRD */
 385         carry(BIRD + CAGE - obj, game.loc);
 386     carry(obj, game.loc);
 387     if (obj == BOTTLE && LIQUID() != NO_OBJECT)
 388         game.place[LIQUID()] = CARRIED;
 389     if (GSTONE(obj) && game.prop[obj] != STATE_GROUND) {
 390         game.prop[obj] = STATE_GROUND;
 391         game.prop[CAVITY] = CAVITY_EMPTY;
 392     }
 393     rspeak(OK_MAN);
 394     return GO_CLEAROBJ;
 395 }
 396
 397 static int chain(token_t verb)
 398 /* Do something to the bear's chain */
 399 {
 400     if (verb != LOCK) {
 401         if (game.prop[BEAR] == UNTAMED_BEAR) {
 402             rspeak(BEAR_BLOCKS);
 403             return GO_CLEAROBJ;
 404         }
 405         if (game.prop[CHAIN] == CHAIN_HEAP) {
 406             rspeak(ALREADY_UNLOCKED);
 407             return GO_CLEAROBJ;
 408         }
 409         game.prop[CHAIN] = CHAIN_HEAP;
 410         game.fixed[CHAIN] = CHAIN_HEAP;
 411         if (game.prop[BEAR] != BEAR_DEAD)
 412             game.prop[BEAR] = CONTENTED_BEAR;
 413
 414         switch (game.prop[BEAR]) {
 415         case BEAR_DEAD:
 416             game.fixed[BEAR] = -1;
 417             break;
 418         default:
 419             game.fixed[BEAR] = 0;
 420         }
 421         rspeak(CHAIN_UNLOCKED);
 422         return GO_CLEAROBJ;
 423     }
 424
 425     if (game.prop[CHAIN] != CHAIN_HEAP) {
 426         rspeak(ALREADY_LOCKED);
 427         return GO_CLEAROBJ;
 428     }
 429     if (game.loc != objects[CHAIN].plac) {
 430         rspeak(NO_LOCKSITE);
 431         return GO_CLEAROBJ;
 432     }
 433
 434     game.prop[CHAIN] = CHAIN_FIXED;
 435
 436     if (TOTING(CHAIN))
 437         drop(CHAIN, game.loc);
 438     game.fixed[CHAIN] = -1;
 439
 440     rspeak(CHAIN_LOCKED);
 441     return GO_CLEAROBJ;
 442 }
 443
 444 static int discard(token_t verb, token_t obj, bool just_do_it)
 445 /*  Discard object.  "Throw" also comes here for most objects.  Special cases for
 446  *  bird (might attack snake or dragon) and cage (might contain bird) and vase.
 447  *  Drop coins at vending machine for extra batteries. */
 448 {
 449     if (!just_do_it) {
 450         if (TOTING(ROD2) && obj == ROD && !TOTING(ROD))
 451             obj = ROD2;
 452         if (!TOTING(obj)) {
 453             rspeak(actions[verb].message);
 454             return GO_CLEAROBJ;
 455         }
 456         if (obj == BIRD && HERE(SNAKE)) {
 457             rspeak(BIRD_ATTACKS);
 458             if (game.closed)
 459                 return GO_DWARFWAKE;
 460             DESTROY(SNAKE);
 461             /* Set game.prop for use by travel options */
 462             game.prop[SNAKE] = SNAKE_CHASED;
 463
 464         } else if ((GSTONE(obj) && AT(CAVITY) && game.prop[CAVITY] != CAVITY_FULL)) {
 465             rspeak(GEM_FITS);
 466             game.prop[obj] = STATE_IN_CAVITY;
 467             game.prop[CAVITY] = CAVITY_FULL;
 468             if (HERE(RUG) && ((obj == EMERALD && game.prop[RUG] != RUG_HOVER) ||
 469                               (obj == RUBY && game.prop[RUG] == RUG_HOVER))) {
 470                 int spk = RUG_RISES;
 471                 if (TOTING(RUG))
 472                     spk = RUG_WIGGLES;
 473                 if (obj == RUBY)
 474                     spk = RUG_SETTLES;
 475                 rspeak(spk);
 476                 if (spk != RUG_WIGGLES) {
 477                     /* FIXME: Arithmetic on state numbers */
 478                     int k = 2 - game.prop[RUG];
 479                     game.prop[RUG] = k;
 480                     if (k == 2)
 481                         k = objects[SAPPH].plac;
 482                     move(RUG + NOBJECTS, k);
 483                 }
 484             }
 485         } else if (obj == COINS && HERE(VEND)) {
 486             DESTROY(COINS);
 487             drop(BATTERY, game.loc);
 488             pspeak(BATTERY, look, FRESH_BATTERIES, true);
 489             return GO_CLEAROBJ;
 490         } else if (obj == BIRD && AT(DRAGON) && game.prop[DRAGON] == DRAGON_BARS) {
 491             rspeak(BIRD_BURNT);
 492             DESTROY(BIRD);
 493             return GO_CLEAROBJ;
 494         } else if (obj == BEAR && AT(TROLL)) {
 495             state_change(TROLL, TROLL_GONE);
 496             move(TROLL, LOC_NOWHERE);
 497             move(TROLL + NOBJECTS, LOC_NOWHERE);
 498             move(TROLL2, objects[TROLL].plac);
 499             move(TROLL2 + NOBJECTS, objects[TROLL].fixd);
 500             juggle(CHASM);
 501         } else if (obj != VASE ||
 502                    game.loc == objects[PILLOW].plac) {
 503             rspeak(OK_MAN);
 504         } else {
 505             game.prop[VASE] = VASE_BROKEN;
 506             if (AT(PILLOW))
 507                 game.prop[VASE] = VASE_WHOLE;
 508             pspeak(VASE, look, game.prop[VASE] + 1, true);
 509             if (game.prop[VASE] != VASE_WHOLE)
 510                 game.fixed[VASE] = -1;
 511         }
 512     }
 513     int k = LIQUID();
 514     if (k == obj)
 515         obj = BOTTLE;
 516     if (obj == BOTTLE && k != NO_OBJECT)
 517         game.place[k] = LOC_NOWHERE;
 518     if (obj == CAGE && game.prop[BIRD] == BIRD_CAGED)
 519         drop(BIRD, game.loc);
 520     drop(obj, game.loc);
 521     if (obj != BIRD)
 522         return GO_CLEAROBJ;
 523     game.prop[BIRD] = BIRD_UNCAGED;
 524     if (FOREST(game.loc))
 525         game.prop[BIRD] = BIRD_FOREST_UNCAGED;
 526     return GO_CLEAROBJ;
 527 }
 528
 529 static int drink(token_t verb, token_t obj)
 530 /*  Drink.  If no object, assume water and look for it here.  If water is in
 531  *  the bottle, drink that, else must be at a water loc, so drink stream. */
 532 {
 533     if (obj == NO_OBJECT && LIQLOC(game.loc) != WATER &&
 534         (LIQUID() != WATER || !HERE(BOTTLE))) {
 535         return GO_UNKNOWN;
 536     }
 537
 538     if (obj == BLOOD) {
 539         DESTROY(BLOOD);
 540         state_change(DRAGON, DRAGON_BLOODLESS);
 541         game.blooded = true;
 542         return GO_CLEAROBJ;
 543     }
 544
 545     if (obj != NO_OBJECT && obj != WATER) {
 546         rspeak(RIDICULOUS_ATTEMPT);
 547         return GO_CLEAROBJ;
 548     }
 549     if (LIQUID() == WATER && HERE(BOTTLE)) {
 550         game.prop[BOTTLE] = EMPTY_BOTTLE;
 551         game.place[WATER] = LOC_NOWHERE;
 552         rspeak(BOTTLE_EMPTY);
 553         return GO_CLEAROBJ;
 554     }
 555
 556     rspeak(actions[verb].message);
 557     return GO_CLEAROBJ;
 558 }
 559
 560 static int eat(token_t verb, token_t obj)
 561 /*  Eat.  Intransitive: assume food if present, else ask what.  Transitive: food
 562  *  ok, some things lose appetite, rest are ridiculous. */
 563 {
 564     if (obj == INTRANSITIVE) {
 565         if (!HERE(FOOD))
 566             return GO_UNKNOWN;
 567         DESTROY(FOOD);
 568         rspeak(THANKS_DELICIOUS);
 569         return GO_CLEAROBJ;
 570     }
 571     if (obj == FOOD) {
 572         DESTROY(FOOD);
 573         rspeak(THANKS_DELICIOUS);
 574         return GO_CLEAROBJ;
 575     }
 576     if (obj == BIRD ||
 577         obj == SNAKE ||
 578         obj == CLAM ||
 579         obj == OYSTER ||
 580         obj == DWARF ||
 581         obj == DRAGON ||
 582         obj == TROLL ||
 583         obj == BEAR ||
 584         obj == OGRE) {
 585         rspeak(LOST_APPETITE);
 586         return GO_CLEAROBJ;
 587     }
 588     rspeak(actions[verb].message);
 589     return GO_CLEAROBJ;
 590 }
 591
 592 static int extinguish(token_t verb, int obj)
 593 /* Extinguish.  Lamp, urn, dragon/volcano (nice try). */
 594 {
 595     if (obj == INTRANSITIVE) {
 596         if (HERE(LAMP) && game.prop[LAMP] == LAMP_BRIGHT)
 597             obj = LAMP;
 598         if (HERE(URN) && game.prop[URN] == URN_LIT)
 599             obj = URN;
 600         if (obj == INTRANSITIVE)
 601             return GO_UNKNOWN;
 602     }
 603
 604     if (obj == URN) {
 605         if (game.prop[URN] != URN_EMPTY) {
 606             state_change(URN, URN_DARK);
 607         } else {
 608             pspeak(URN, change, URN_DARK, true);
 609         }
 610         return GO_CLEAROBJ;
 611     }
 612
 613     if (obj == LAMP) {
 614         state_change(LAMP, LAMP_DARK);
 615         rspeak(DARK(game.loc) ?
 616                PITCH_DARK :
 617                NO_MESSAGE);
 618         return GO_CLEAROBJ;
 619     }
 620
 621     if (obj == DRAGON ||
 622         obj == VOLCANO) {
 623         rspeak(BEYOND_POWER);
 624         return GO_CLEAROBJ;
 625     }
 626
 627     rspeak(actions[verb].message);
 628     return GO_CLEAROBJ;
 629 }
 630
 631 static int feed(token_t verb, token_t obj)
 632 /*  Feed.  If bird, no seed.  Snake, dragon, troll: quip.  If dwarf, make him
 633  *  mad.  Bear, special. */
 634 {
 635     int spk = actions[verb].message;
 636     if (obj == BIRD) {
 637         rspeak(BIRD_PINING);
 638         return GO_CLEAROBJ;
 639     } else if (obj == SNAKE ||
 640                obj == DRAGON ||
 641                obj == TROLL) {
 642         spk = NOTHING_EDIBLE;
 643         if (obj == DRAGON && game.prop[DRAGON] != DRAGON_BARS)
 644             spk = RIDICULOUS_ATTEMPT;
 645         if (obj == TROLL)
 646             spk = TROLL_VICES;
 647         if (obj == SNAKE && !game.closed && HERE(BIRD)) {
 648             DESTROY(BIRD);
 649             spk = BIRD_DEVOURED;
 650         }
 651     } else if (obj == DWARF) {
 652         if (HERE(FOOD)) {
 653             game.dflag += 2;
 654             spk = REALLY_MAD;
 655         }
 656     } else if (obj == BEAR) {
 657         if (game.prop[BEAR] == UNTAMED_BEAR)
 658             spk = NOTHING_EDIBLE;
 659         if (game.prop[BEAR] == BEAR_DEAD)
 660             spk = RIDICULOUS_ATTEMPT;
 661         if (HERE(FOOD)) {
 662             DESTROY(FOOD);
 663             game.prop[BEAR] = SITTING_BEAR;
 664             game.fixed[AXE] = 0;
 665             game.prop[AXE] = 0;
 666             spk = BEAR_TAMED;
 667         }
 668     } else if (obj == OGRE) {
 669         if (HERE(FOOD))
 670             spk = OGRE_FULL;
 671     } else {
 672         spk = AM_GAME;
 673     }
 674     rspeak(spk);
 675     return GO_CLEAROBJ;
 676 }
 677
 678 int fill(token_t verb, token_t obj)
 679 /*  Fill.  Bottle or urn must be empty, and liquid available.  (Vase
 680  *  is nasty.) */
 681 {
 682     if (obj == VASE) {
 683         if (LIQLOC(game.loc) == NO_OBJECT) {
 684             rspeak(FILL_INVALID);
 685             return GO_CLEAROBJ;
 686         }
 687         if (!TOTING(VASE)) {
 688             rspeak(ARENT_CARRYING);
 689             return GO_CLEAROBJ;
 690         }
 691         rspeak(SHATTER_VASE);
 692         game.prop[VASE] = VASE_BROKEN;
 693         game.fixed[VASE] = -1;
 694         return (discard(verb, VASE, true));
 695     }
 696
 697     if (obj == URN) {
 698         if (game.prop[URN] != URN_EMPTY) {
 699             rspeak(FULL_URN);
 700             return GO_CLEAROBJ;
 701         }
 702         if (!HERE(BOTTLE)) {
 703             rspeak(FILL_INVALID);
 704             return GO_CLEAROBJ;
 705         }
 706         int k = LIQUID();
 707         switch (k) {
 708         case WATER:
 709             game.prop[BOTTLE] = EMPTY_BOTTLE;
 710             rspeak(WATER_URN);
 711             break;
 712         case OIL:
 713             game.prop[URN] = URN_DARK;
 714             game.prop[BOTTLE] = EMPTY_BOTTLE;
 715             rspeak(OIL_URN);
 716             break;
 717         case NO_OBJECT:
 718         default:
 719             rspeak(FILL_INVALID);
 720             return GO_CLEAROBJ;
 721         }
 722         game.place[k] = LOC_NOWHERE;
 723         return GO_CLEAROBJ;
 724     }
 725     if (obj != NO_OBJECT && obj != BOTTLE) {
 726         rspeak(actions[verb].message);
 727         return GO_CLEAROBJ;
 728     }
 729     if (obj == NO_OBJECT && !HERE(BOTTLE))
 730         return GO_UNKNOWN;
 731
 732     if (HERE(URN) && game.prop[URN] != URN_EMPTY) {
 733         rspeak(URN_NOPOUR);
 734         return GO_CLEAROBJ;
 735     }
 736     if (LIQUID() != NO_OBJECT) {
 737         rspeak(BOTTLE_FULL);
 738         return GO_CLEAROBJ;
 739     }
 740     if (LIQLOC(game.loc) == NO_OBJECT) {
 741         rspeak(NO_LIQUID);
 742         return GO_CLEAROBJ;
 743     }
 744
 745     game.prop[BOTTLE] = (LIQLOC(game.loc) == OIL) ? OIL_BOTTLE : WATER_BOTTLE;
 746     if (TOTING(BOTTLE))
 747         game.place[LIQUID()] = CARRIED;
 748     if (LIQUID() == OIL)
 749         rspeak(BOTTLED_OIL);
 750     else
 751         rspeak(BOTTLED_WATER);
 752     return GO_CLEAROBJ;
 753 }
 754
 755 static int find(token_t verb, token_t obj)
 756 /* Find.  Might be carrying it, or it might be here.  Else give caveat. */
 757 {
 758     if (TOTING(obj)) {
 759         rspeak(ALREADY_CARRYING);
 760         return GO_CLEAROBJ;
 761     }
 762
 763     if (game.closed) {
 764         rspeak(NEEDED_NEARBY);
 765         return GO_CLEAROBJ;
 766     }
 767
 768     if (AT(obj) ||
 769         (LIQUID() == obj && AT(BOTTLE)) ||
 770         obj == LIQLOC(game.loc) ||
 771         (obj == DWARF && atdwrf(game.loc) > 0)) {
 772         rspeak(YOU_HAVEIT);
 773         return GO_CLEAROBJ;
 774     }
 775
 776
 777     rspeak(actions[verb].message);
 778     return GO_CLEAROBJ;
 779 }
 780
 781 static int fly(token_t verb, token_t obj)
 782 /* Fly.  Snide remarks unless hovering rug is here. */
 783 {
 784     if (obj == INTRANSITIVE) {
 785         if (!HERE(RUG)) {
 786             rspeak(FLAP_ARMS);
 787             return GO_CLEAROBJ;
 788         }
 789         if (game.prop[RUG] != RUG_HOVER) {
 790             rspeak(RUG_NOTHING2);
 791             return GO_CLEAROBJ;
 792         }
 793         obj = RUG;
 794     }
 795
 796     if (obj != RUG) {
 797         rspeak(actions[verb].message);
 798         return GO_CLEAROBJ;
 799     }
 800     if (game.prop[RUG] != RUG_HOVER) {
 801         rspeak(RUG_NOTHING1);
 802         return GO_CLEAROBJ;
 803     }
 804     game.oldlc2 = game.oldloc;
 805     game.oldloc = game.loc;
 806     /* FIXME: Arithmetic on location values */
 807     game.newloc = game.place[RUG] + game.fixed[RUG] - game.loc;
 808
 809     if (game.prop[SAPPH] >= 0) {
 810         rspeak(RUG_RETURNS);
 811     } else {
 812         rspeak(RUG_GOES);
 813     }
 814     return GO_TERMINATE;
 815 }
 816
 817 static int inven(void)
 818 /* Inventory. If object, treat same as find.  Else report on current burden. */
 819 {
 820     bool empty = true;
 821     for (int i = 1; i <= NOBJECTS; i++) {
 822         if (i == BEAR ||
 823             !TOTING(i))
 824             continue;
 825         if (empty) {
 826             rspeak(NOW_HOLDING);
 827             empty = false;
 828         }
 829         pspeak(i, touch, -1, false);
 830     }
 831     if (TOTING(BEAR))
 832         rspeak(TAME_BEAR);
 833     if (empty)
 834         rspeak(NO_CARRY);
 835     return GO_CLEAROBJ;
 836 }
 837
 838 static int light(token_t verb, token_t obj)
 839 /*  Light.  Applicable only to lamp and urn. */
 840 {
 841     if (obj == INTRANSITIVE) {
 842         if (HERE(LAMP) && game.prop[LAMP] == LAMP_DARK && game.limit >= 0)
 843             obj = LAMP;
 844         if (HERE(URN) && game.prop[URN] == URN_DARK)
 845             obj =  URN;
 846         if (obj == INTRANSITIVE ||
 847             (HERE(LAMP) && game.prop[LAMP] == LAMP_DARK && game.limit >= 0 &&
 848              HERE(URN) && game.prop[URN] == URN_DARK))
 849             return GO_UNKNOWN;
 850     }
 851
 852     if (obj == URN) {
 853         state_change(URN, game.prop[URN] == URN_EMPTY ?
 854                      URN_EMPTY :
 855                      URN_LIT);
 856         return GO_CLEAROBJ;
 857     } else {
 858         if (obj != LAMP) {
 859             rspeak(actions[verb].message);
 860             return GO_CLEAROBJ;
 861         }
 862         if (game.limit < 0) {
 863             rspeak(LAMP_OUT);
 864             return GO_CLEAROBJ;
 865         }
 866         state_change(LAMP, LAMP_BRIGHT);
 867         if (game.wzdark)
 868             return GO_TOP;
 869         else
 870             return GO_CLEAROBJ;
 871     }
 872 }
 873
 874 static int listen(void)
 875 /*  Listen.  Intransitive only.  Print stuff based on objsnd/locsnd. */
 876 {
 877     long sound = locations[game.loc].sound;
 878     if (sound != SILENT) {
 879         rspeak(sound);
 880         if (!locations[game.loc].loud)
 881             rspeak(NO_MESSAGE);
 882         return GO_CLEAROBJ;
 883     }
 884     for (int i = 1; i <= NOBJECTS; i++) {
 885         if (!HERE(i) ||
 886             objects[i].sounds[0] == NULL ||
 887             game.prop[i] < 0)
 888             continue;
 889         int mi =  game.prop[i];
 890         if (i == BIRD)
 891             mi += 3 * game.blooded;
 892         long packed_zzword = token_to_packed(game.zzword);
 893         pspeak(i, hear, mi, true, packed_zzword);
 894         rspeak(NO_MESSAGE);
 895         /* FIXME: Magic number, sensitive to bird state logic */
 896         if (i == BIRD && game.prop[i] == 5)
 897             DESTROY(BIRD);
 898         return GO_CLEAROBJ;
 899     }
 900     rspeak(ALL_SILENT);
 901     return GO_CLEAROBJ;
 902 }
 903
 904 static int lock(token_t verb, token_t obj)
 905 /* Lock, unlock, no object given.  Assume various things if present. */
 906 {
 907     if (obj == INTRANSITIVE) {
 908         if (HERE(CLAM))
 909             obj = CLAM;
 910         if (HERE(OYSTER))
 911             obj = OYSTER;
 912         if (AT(DOOR))
 913             obj = DOOR;
 914         if (AT(GRATE))
 915             obj = GRATE;
 916         if (HERE(CHAIN))
 917             obj = CHAIN;
 918         if (obj == INTRANSITIVE) {
 919             rspeak(NOTHING_LOCKED);
 920             return GO_CLEAROBJ;
 921         }
 922     }
 923
 924     /*  Lock, unlock object.  Special stuff for opening clam/oyster
 925      *  and for chain. */
 926     if (obj == GRATE ||
 927         obj == CHAIN) {
 928         if (HERE(KEYS)) {
 929             if (obj == CHAIN)
 930                 return chain(verb);
 931             if (game.closng) {
 932                 rspeak(EXIT_CLOSED);
 933                 if (!game.panic)
 934                     game.clock2 = PANICTIME;
 935                 game.panic = true;
 936                 return GO_CLEAROBJ ;
 937             } else {
 938                 state_change(GRATE, (verb == LOCK) ?
 939                              GRATE_CLOSED :
 940                              GRATE_OPEN);
 941                 return GO_CLEAROBJ;
 942             }
 943         }
 944         rspeak(NO_KEYS);
 945         return GO_CLEAROBJ;
 946     }
 947
 948     switch (obj) {
 949     case CLAM:
 950         if (verb == LOCK)
 951             rspeak(HUH_MAN);
 952         else if (!TOTING(TRIDENT))
 953             rspeak(OYSTER_OPENER);
 954         else {
 955             DESTROY(CLAM);
 956             drop(OYSTER, game.loc);
 957             drop(PEARL, LOC_CULDESAC);
 958             rspeak(PEARL_FALLS);
 959         }
 960         return GO_CLEAROBJ;
 961     case OYSTER:
 962         if (verb == LOCK)
 963             rspeak(HUH_MAN);
 964         else
 965             rspeak(OYSTER_OPENER);
 966
 967         return GO_CLEAROBJ;
 968     case DOOR:
 969         rspeak((game.prop[DOOR] == DOOR_UNRUSTED) ? OK_MAN : RUSTY_DOOR);
 970         break;
 971     case CAGE:
 972         rspeak( NO_LOCK);
 973         break;
 974     case KEYS:
 975         rspeak(CANNOT_UNLOCK);
 976         break;
 977     default:
 978         rspeak(actions[verb].message);
 979     }
 980
 981     return GO_CLEAROBJ;
 982 }
 983
 984 static int pour(token_t verb, token_t obj)
 985 /*  Pour.  If no object, or object is bottle, assume contents of bottle.
 986  *  special tests for pouring water or oil on plant or rusty door. */
 987 {
 988     if (obj == BOTTLE ||
 989         obj == NO_OBJECT)
 990         obj = LIQUID();
 991     if (obj == NO_OBJECT)
 992         return GO_UNKNOWN;
 993     if (!TOTING(obj)) {
 994         rspeak(actions[verb].message);
 995         return GO_CLEAROBJ;
 996     }
 997
 998     if (obj != OIL && obj != WATER) {
 999         rspeak(CANT_POUR);
1000         return GO_CLEAROBJ;
1001     }
1002     if (HERE(URN) && game.prop[URN] == URN_EMPTY)
1003         return fill(verb, URN);
1004     game.prop[BOTTLE] = EMPTY_BOTTLE;
1005     game.place[obj] = LOC_NOWHERE;
1006     if (!(AT(PLANT) ||
1007           AT(DOOR))) {
1008         rspeak(GROUND_WET);
1009         return GO_CLEAROBJ;
1010     }
1011     if (!AT(DOOR)) {
1012         if (obj == WATER) {
1013             /* cycle through the three plant states */
1014             state_change(PLANT, MOD(game.prop[PLANT] + 1, 3));
1015             game.prop[PLANT2] = game.prop[PLANT];
1016             return GO_MOVE;
1017         } else {
1018             rspeak(SHAKING_LEAVES);
1019             return GO_CLEAROBJ;
1020         }
1021     } else {
1022         state_change(DOOR, (obj == OIL) ?
1023                      DOOR_UNRUSTED :
1024                      DOOR_RUSTED);
1025         return GO_CLEAROBJ;
1026     }
1027 }
1028
1029 static int quit(void)
1030 /*  Quit.  Intransitive only.  Verify intent and exit if that's what he wants. */
1031 {
1032     if (yes(arbitrary_messages[REALLY_QUIT], arbitrary_messages[OK_MAN], arbitrary_messages[OK_MAN]))
1033         terminate(quitgame);
1034     return GO_CLEAROBJ;
1035 }
1036
1037 static int read(struct command_t command)
1038 /*  Read.  Print stuff based on objtxt.  Oyster (?) is special case. */
1039 {
1040     if (command.obj == INTRANSITIVE) {
1041         command.obj = 0;
1042         for (int i = 1; i <= NOBJECTS; i++) {
1043             if (HERE(i) && objects[i].texts[0] != NULL && game.prop[i] >= 0)
1044                 command.obj = command.obj * NOBJECTS + i;
1045         }
1046         if (command.obj > NOBJECTS ||
1047             command.obj == 0 ||
1048             DARK(game.loc))
1049             return GO_UNKNOWN;
1050     }
1051
1052     if (DARK(game.loc)) {
1053         sspeak(NO_SEE, command.raw1);
1054     } else if (command.obj == OYSTER && !game.clshnt && game.closed) {
1055         game.clshnt = yes(arbitrary_messages[CLUE_QUERY], arbitrary_messages[WAYOUT_CLUE], arbitrary_messages[OK_MAN]);
1056     } else if (objects[command.obj].texts[0] == NULL ||
1057                game.prop[command.obj] < 0) {
1058         rspeak(actions[command.verb].message);
1059     } else
1060         pspeak(command.obj, study, game.prop[command.obj], true);
1061     return GO_CLEAROBJ;
1062 }
1063
1064 static int reservoir(void)
1065 /*  Z'ZZZ (word gets recomputed at startup; different each game). */
1066 {
1067     /* FIXME: Arithmetic on state numbers */
1068     if (!AT(RESER) && game.loc != game.fixed[RESER] - 1) {
1069         rspeak(NOTHING_HAPPENS);
1070         return GO_CLEAROBJ;
1071     } else {
1072         state_change(RESER,
1073                      game.prop[RESER] == WATERS_PARTED ? WATERS_UNPARTED : WATERS_PARTED);
1074         if (AT(RESER))
1075             return GO_CLEAROBJ;
1076         else {
1077             game.oldlc2 = game.loc;
1078             game.newloc = LOC_NOWHERE;
1079             rspeak(NOT_BRIGHT);
1080             return GO_TERMINATE;
1081         }
1082     }
1083 }
1084
1085 static int rub(token_t verb, token_t obj)
1086 /* Rub.  Yields various snide remarks except for lit urn. */
1087 {
1088     if (obj == URN && game.prop[URN] == URN_LIT) {
1089         DESTROY(URN);
1090         drop(AMBER, game.loc);
1091         game.prop[AMBER] = AMBER_IN_ROCK;
1092         --game.tally;
1093         drop(CAVITY, game.loc);
1094         rspeak(URN_GENIES);
1095     } else if (obj != LAMP) {
1096         rspeak(PECULIAR_NOTHING);
1097     } else {
1098         rspeak(actions[verb].message);
1099     }
1100     return GO_CLEAROBJ;
1101 }
1102
1103 static int say(struct command_t *command)
1104 /* Say.  Echo WD2 (or WD1 if no WD2 (SAY WHAT?, etc.).)  Magic words override. */
1105 {
1106     if (command->wd2 > 0) {
1107         command->wd1 = command->wd2;
1108         strcpy(command->raw1, command->raw2);
1109     }
1110     char word1[TOKLEN + 1];
1111     packed_to_token(command->wd1, word1);
1112     int wd = (int) get_vocab_id(word1);
1113     /* FIXME: magic numbers */
1114     if (wd == MOTION_WORD(XYZZY) ||
1115         wd == MOTION_WORD(PLUGH) ||
1116         wd == MOTION_WORD(PLOVER) ||
1117         wd == ACTION_WORD(GIANTWORDS) ||
1118         wd == ACTION_WORD(PART)) {
1119         /* FIXME: scribbles on the interpreter's command block */
1120         wordclear(&command->wd2);
1121         return GO_LOOKUP;
1122     }
1123     sspeak(OKEY_DOKEY, command->raw1);
1124     return GO_CLEAROBJ;
1125 }
1126
1127 static int throw_support(long spk)
1128 {
1129     rspeak(spk);
1130     drop(AXE, game.loc);
1131     return GO_MOVE;
1132 }
1133
1134 static int throw (struct command_t *command)
1135 /*  Throw.  Same as discard unless axe.  Then same as attack except
1136  *  ignore bird, and if dwarf is present then one might be killed.
1137  *  (Only way to do so!)  Axe also special for dragon, bear, and
1138  *  troll.  Treasures special for troll. */
1139 {
1140     if (TOTING(ROD2) && command->obj == ROD && !TOTING(ROD))
1141         command->obj = ROD2;
1142     if (!TOTING(command->obj)) {
1143         rspeak(actions[command->verb].message);
1144         return GO_CLEAROBJ;
1145     }
1146     if (objects[command->obj].is_treasure && AT(TROLL)) {
1147         /*  Snarf a treasure for the troll. */
1148         drop(command->obj, LOC_NOWHERE);
1149         move(TROLL, LOC_NOWHERE);
1150         move(TROLL + NOBJECTS, LOC_NOWHERE);
1151         drop(TROLL2, objects[TROLL].plac);
1152         drop(TROLL2 + NOBJECTS, objects[TROLL].fixd);
1153         juggle(CHASM);
1154         rspeak(TROLL_SATISFIED);
1155         return GO_CLEAROBJ;
1156     }
1157     if (command->obj == FOOD && HERE(BEAR)) {
1158         /* But throwing food is another story. */
1159         command->obj = BEAR;
1160         return (feed(command->verb, command->obj));
1161     }
1162     if (command->obj != AXE)
1163         return (discard(command->verb, command->obj, false));
1164     else {
1165         if (atdwrf(game.loc) <= 0) {
1166             if (AT(DRAGON) && game.prop[DRAGON] == DRAGON_BARS)
1167                 return throw_support(DRAGON_SCALES);
1168             if (AT(TROLL))
1169                 return throw_support(TROLL_RETURNS);
1170             else if (AT(OGRE))
1171                 return throw_support(OGRE_DODGE);
1172             else if (HERE(BEAR) && game.prop[BEAR] == UNTAMED_BEAR) {
1173                 /* This'll teach him to throw the axe at the bear! */
1174                 drop(AXE, game.loc);
1175                 game.fixed[AXE] = -1;
1176                 juggle(BEAR);
1177                 state_change(AXE, AXE_LOST);
1178                 return GO_CLEAROBJ;
1179             }
1180             command->obj = NO_OBJECT;
1181             return (attack(command));
1182         }
1183
1184         if (randrange(NDWARVES + 1) < game.dflag) {
1185             return throw_support(DWARF_DODGES);
1186         } else {
1187             long i = atdwrf(game.loc);
1188             game.dseen[i] = false;
1189             game.dloc[i] = LOC_NOWHERE;
1190             return throw_support((++game.dkill == 1) ?
1191                                  DWARF_SMOKE :
1192                                  KILLED_DWARF);
1193         }
1194     }
1195 }
1196
1197 static int wake(token_t verb, token_t obj)
1198 /* Wake.  Only use is to disturb the dwarves. */
1199 {
1200     if (obj != DWARF ||
1201         !game.closed) {
1202         rspeak(actions[verb].message);
1203         return GO_CLEAROBJ;
1204     } else {
1205         rspeak(PROD_DWARF);
1206         return GO_DWARFWAKE;
1207     }
1208 }
1209
1210 static int wave(token_t verb, token_t obj)
1211 /* Wave.  No effect unless waving rod at fissure or at bird. */
1212 {
1213     if (obj != ROD ||
1214         !TOTING(obj) ||
1215         (!HERE(BIRD) &&
1216          (game.closng ||
1217           !AT(FISSURE)))) {
1218         rspeak(((!TOTING(obj)) && (obj != ROD ||
1219                                    !TOTING(ROD2))) ?
1220                ARENT_CARRYING :
1221                actions[verb].message);
1222         return GO_CLEAROBJ;
1223     }
1224
1225     if (game.prop[BIRD] == BIRD_UNCAGED && game.loc == game.place[STEPS] && game.prop[JADE] < 0) {
1226         drop(JADE, game.loc);
1227         game.prop[JADE] = 0;
1228         --game.tally;
1229         rspeak(NECKLACE_FLY);
1230         return GO_CLEAROBJ;
1231     } else {
1232         if (game.closed) {
1233             rspeak((game.prop[BIRD] == BIRD_CAGED) ?
1234                    CAGE_FLY :
1235                    FREE_FLY);
1236             return GO_DWARFWAKE;
1237         }
1238         if (game.closng ||
1239             !AT(FISSURE)) {
1240             rspeak((game.prop[BIRD] == BIRD_CAGED) ?
1241                    CAGE_FLY :
1242                    FREE_FLY);
1243             return GO_CLEAROBJ;
1244         }
1245         if (HERE(BIRD))
1246             rspeak((game.prop[BIRD] == BIRD_CAGED) ?
1247                    CAGE_FLY :
1248                    FREE_FLY);
1249
1250         state_change(FISSURE,
1251                      game.prop[FISSURE] == BRIDGED ? UNBRIDGED : BRIDGED);
1252         return GO_CLEAROBJ;
1253     }
1254 }
1255
1256 int action(struct command_t *command)
1257 /*  Analyse a verb.  Remember what it was, go back for object if second word
1258  *  unless verb is "say", which snarfs arbitrary second word.
1259  */
1260 {
1261     if (command->part == unknown) {
1262         /*  Analyse an object word.  See if the thing is here, whether
1263          *  we've got a verb yet, and so on.  Object must be here
1264          *  unless verb is "find" or "invent(ory)" (and no new verb
1265          *  yet to be analysed).  Water and oil are also funny, since
1266          *  they are never actually dropped at any location, but might
1267          *  be here inside the bottle or urn or as a feature of the
1268          *  location. */
1269         if (HERE(command->obj))
1270             /* FALL THROUGH */;
1271         else if (command->obj == GRATE) {
1272             if (game.loc == LOC_START ||
1273                 game.loc == LOC_VALLEY ||
1274                 game.loc == LOC_SLIT) {
1275                 command->obj = DPRSSN;
1276             }
1277             if (game.loc == LOC_COBBLE ||
1278                 game.loc == LOC_DEBRIS ||
1279                 game.loc == LOC_AWKWARD ||
1280                 game.loc == LOC_BIRD ||
1281                 game.loc == LOC_PITTOP) {
1282                 command->obj = ENTRNC;
1283             }
1284         } else if (command->obj == DWARF && atdwrf(game.loc) > 0)
1285             /* FALL THROUGH */;
1286         else if ((LIQUID() == command->obj && HERE(BOTTLE)) ||
1287                  command->obj == LIQLOC(game.loc))
1288             /* FALL THROUGH */;
1289         else if (command->obj == OIL && HERE(URN) && game.prop[URN] != 0) {
1290             command->obj = URN;
1291             /* FALL THROUGH */;
1292         } else if (command->obj == PLANT && AT(PLANT2) && game.prop[PLANT2] != 0) {
1293             command->obj = PLANT2;
1294             /* FALL THROUGH */;
1295         } else if (command->obj == KNIFE && game.knfloc == game.loc) {
1296             game.knfloc = -1;
1297             rspeak(KNIVES_VANISH);
1298             return GO_CLEAROBJ;
1299         } else if (command->obj == ROD && HERE(ROD2)) {
1300             command->obj = ROD2;
1301             /* FALL THROUGH */;
1302         } else if ((command->verb == FIND ||
1303                     command->verb == INVENTORY) && command->wd2 <= 0)
1304             /* FALL THROUGH */;
1305         else {
1306             sspeak(NO_SEE, command->raw1);
1307             return GO_CLEAROBJ;
1308         }
1309
1310         if (command->wd2 > 0)
1311             return GO_WORD2;
1312         if (command->verb != 0)
1313             command->part = transitive;
1314     }
1315
1316     switch (command->part) {
1317     case intransitive:
1318         if (command->wd2 > 0 && command->verb != SAY)
1319             return GO_WORD2;
1320         if (command->verb == SAY)
1321             command->obj = command->wd2;
1322         if (command->obj == NO_OBJECT ||
1323             command->obj == INTRANSITIVE) {
1324             /*  Analyse an intransitive verb (ie, no object given yet). */
1325             switch (command->verb) {
1326             case CARRY:
1327                 return vcarry(command->verb, INTRANSITIVE);
1328             case  DROP:
1329                 return GO_UNKNOWN;
1330             case  SAY:
1331                 return GO_UNKNOWN;
1332             case  UNLOCK:
1333                 return lock(command->verb, INTRANSITIVE);
1334             case  NOTHING: {
1335                 rspeak(OK_MAN);
1336                 return (GO_CLEAROBJ);
1337             }
1338             case  LOCK:
1339                 return lock(command->verb, INTRANSITIVE);
1340             case  LIGHT:
1341                 return light(command->verb, INTRANSITIVE);
1342             case  EXTINGUISH:
1343                 return extinguish(command->verb, INTRANSITIVE);
1344             case  WAVE:
1345                 return GO_UNKNOWN;
1346             case  TAME:
1347                 return GO_UNKNOWN;
1348             case GO: {
1349                 rspeak(actions[command->verb].message);
1350                 return GO_CLEAROBJ;
1351             }
1352             case ATTACK:
1353                 return attack(command);
1354             case POUR:
1355                 return pour(command->verb, command->obj);
1356             case EAT:
1357                 return eat(command->verb, INTRANSITIVE);
1358             case DRINK:
1359                 return drink(command->verb, command->obj);
1360             case RUB:
1361                 return GO_UNKNOWN;
1362             case THROW:
1363                 return GO_UNKNOWN;
1364             case QUIT:
1365                 return quit();
1366             case FIND:
1367                 return GO_UNKNOWN;
1368             case INVENTORY:
1369                 return inven();
1370             case FEED:
1371                 return GO_UNKNOWN;
1372             case FILL:
1373                 return fill(command->verb, command->obj);
1374             case BLAST:
1375                 blast();
1376                 return GO_CLEAROBJ;
1377             case SCORE:
1378                 score(scoregame);
1379                 return GO_CLEAROBJ;
1380             case GIANTWORDS:
1381                 return bigwords(command->wd1);
1382             case BRIEF:
1383                 return brief();
1384             case READ:
1385                 command->obj = INTRANSITIVE;
1386                 return read(*command);
1387             case BREAK:
1388                 return GO_UNKNOWN;
1389             case WAKE:
1390                 return GO_UNKNOWN;
1391             case SAVE:
1392                 return suspend();
1393             case RESUME:
1394                 return resume();
1395             case FLY:
1396                 return fly(command->verb, INTRANSITIVE);
1397             case LISTEN:
1398                 return listen();
1399             case PART:
1400                 return reservoir();
1401             default:
1402                 BUG(INTRANSITIVE_ACTION_VERB_EXCEEDS_GOTO_LIST); // LCOV_EXCL_LINE
1403             }
1404         }
1405     /* FALLTHRU */
1406     case transitive:
1407         /*  Analyse a transitive verb. */
1408         switch (command->verb) {
1409         case  CARRY:
1410             return vcarry(command->verb, command->obj);
1411         case  DROP:
1412             return discard(command->verb, command->obj, false);
1413         case  SAY:
1414             return say(command);
1415         case  UNLOCK:
1416             return lock(command->verb, command->obj);
1417         case  NOTHING: {
1418             rspeak(OK_MAN);
1419             return (GO_CLEAROBJ);
1420         }
1421         case  LOCK:
1422             return lock(command->verb, command->obj);
1423         case LIGHT:
1424             return light(command->verb, command->obj);
1425         case EXTINGUISH:
1426             return extinguish(command->verb, command->obj);
1427         case WAVE:
1428             return wave(command->verb, command->obj);
1429         case TAME: {
1430             rspeak(actions[command->verb].message);
1431             return GO_CLEAROBJ;
1432         }
1433         case GO: {
1434             rspeak(actions[command->verb].message);
1435             return GO_CLEAROBJ;
1436         }
1437         case ATTACK:
1438             return attack(command);
1439         case POUR:
1440             return pour(command->verb, command->obj);
1441         case EAT:
1442             return eat(command->verb, command->obj);
1443         case DRINK:
1444             return drink(command->verb, command->obj);
1445         case RUB:
1446             return rub(command->verb, command->obj);
1447         case THROW:
1448             return throw (command);
1449         case QUIT: {
1450             rspeak(actions[command->verb].message);
1451             return GO_CLEAROBJ;
1452         }
1453         case FIND:
1454             return find(command->verb, command->obj);
1455         case INVENTORY:
1456             return find(command->verb, command->obj);
1457         case FEED:
1458             return feed(command->verb, command->obj);
1459         case FILL:
1460             return fill(command->verb, command->obj);
1461         case BLAST:
1462             blast();
1463             return GO_CLEAROBJ;
1464         case SCORE: {
1465             rspeak(actions[command->verb].message);
1466             return GO_CLEAROBJ;
1467         }
1468         case GIANTWORDS: {
1469             rspeak(actions[command->verb].message);
1470             return GO_CLEAROBJ;
1471         }
1472         case BRIEF: {
1473             rspeak(actions[command->verb].message);
1474             return GO_CLEAROBJ;
1475         }
1476         case READ:
1477             return read(*command);
1478         case BREAK:
1479             return vbreak(command->verb, command->obj);
1480         case WAKE:
1481             return wake(command->verb, command->obj);
1482         case SAVE: {
1483             rspeak(actions[command->verb].message);
1484             return GO_CLEAROBJ;
1485         }
1486         case RESUME: {
1487             rspeak(actions[command->verb].message);
1488             return GO_CLEAROBJ;
1489         }
1490         case FLY:
1491             return fly(command->verb, command->obj);
1492         case LISTEN: {
1493             rspeak(actions[command->verb].message);
1494             return GO_CLEAROBJ;
1495         }
1496         case PART:
1497             return reservoir();
1498         default:
1499             BUG(TRANSITIVE_ACTION_VERB_EXCEEDS_GOTO_LIST); // LCOV_EXCL_LINE
1500         }
1501     case unknown:
1502         /* Unknown verb, couldn't deduce object - might need hint */
1503         sspeak(WHAT_DO, command->raw1);
1504         return GO_CHECKHINT;
1505     default:
1506         BUG(SPEECHPART_NOT_TRANSITIVE_OR_INTRANSITIVE_OR_UNKNOWN); // LCOV_EXCL_LINE
1507     }
1508 }