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_FOUND) {
 390         game.prop[obj] = STATE_FOUND;
 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 == RUG_HOVER)
 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             state_change(VASE, AT(PILLOW)
 506                          ? VASE_WHOLE
 507                          : VASE_DROPPED);
 508             if (game.prop[VASE] != VASE_WHOLE)
 509                 game.fixed[VASE] = -1;
 510         }
 511     }
 512     int k = LIQUID();
 513     if (k == obj)
 514         obj = BOTTLE;
 515     if (obj == BOTTLE && k != NO_OBJECT)
 516         game.place[k] = LOC_NOWHERE;
 517     if (obj == CAGE && game.prop[BIRD] == BIRD_CAGED)
 518         drop(BIRD, game.loc);
 519     drop(obj, game.loc);
 520     if (obj != BIRD)
 521         return GO_CLEAROBJ;
 522     game.prop[BIRD] = BIRD_UNCAGED;
 523     if (FOREST(game.loc))
 524         game.prop[BIRD] = BIRD_FOREST_UNCAGED;
 525     return GO_CLEAROBJ;
 526 }
 527
 528 static int drink(token_t verb, token_t obj)
 529 /*  Drink.  If no object, assume water and look for it here.  If water is in
 530  *  the bottle, drink that, else must be at a water loc, so drink stream. */
 531 {
 532     if (obj == NO_OBJECT && LIQLOC(game.loc) != WATER &&
 533         (LIQUID() != WATER || !HERE(BOTTLE))) {
 534         return GO_UNKNOWN;
 535     }
 536
 537     if (obj == BLOOD) {
 538         DESTROY(BLOOD);
 539         state_change(DRAGON, DRAGON_BLOODLESS);
 540         game.blooded = true;
 541         return GO_CLEAROBJ;
 542     }
 543
 544     if (obj != NO_OBJECT && obj != WATER) {
 545         rspeak(RIDICULOUS_ATTEMPT);
 546         return GO_CLEAROBJ;
 547     }
 548     if (LIQUID() == WATER && HERE(BOTTLE)) {
 549         game.prop[BOTTLE] = EMPTY_BOTTLE;
 550         game.place[WATER] = LOC_NOWHERE;
 551         rspeak(BOTTLE_EMPTY);
 552         return GO_CLEAROBJ;
 553     }
 554
 555     rspeak(actions[verb].message);
 556     return GO_CLEAROBJ;
 557 }
 558
 559 static int eat(token_t verb, token_t obj)
 560 /*  Eat.  Intransitive: assume food if present, else ask what.  Transitive: food
 561  *  ok, some things lose appetite, rest are ridiculous. */
 562 {
 563     if (obj == INTRANSITIVE) {
 564         if (!HERE(FOOD))
 565             return GO_UNKNOWN;
 566         DESTROY(FOOD);
 567         rspeak(THANKS_DELICIOUS);
 568         return GO_CLEAROBJ;
 569     }
 570     if (obj == FOOD) {
 571         DESTROY(FOOD);
 572         rspeak(THANKS_DELICIOUS);
 573         return GO_CLEAROBJ;
 574     }
 575     if (obj == BIRD ||
 576         obj == SNAKE ||
 577         obj == CLAM ||
 578         obj == OYSTER ||
 579         obj == DWARF ||
 580         obj == DRAGON ||
 581         obj == TROLL ||
 582         obj == BEAR ||
 583         obj == OGRE) {
 584         rspeak(LOST_APPETITE);
 585         return GO_CLEAROBJ;
 586     }
 587     rspeak(actions[verb].message);
 588     return GO_CLEAROBJ;
 589 }
 590
 591 static int extinguish(token_t verb, int obj)
 592 /* Extinguish.  Lamp, urn, dragon/volcano (nice try). */
 593 {
 594     if (obj == INTRANSITIVE) {
 595         if (HERE(LAMP) && game.prop[LAMP] == LAMP_BRIGHT)
 596             obj = LAMP;
 597         if (HERE(URN) && game.prop[URN] == URN_LIT)
 598             obj = URN;
 599         if (obj == INTRANSITIVE)
 600             return GO_UNKNOWN;
 601     }
 602
 603     if (obj == URN) {
 604         if (game.prop[URN] != URN_EMPTY) {
 605             state_change(URN, URN_DARK);
 606         } else {
 607             pspeak(URN, change, URN_DARK, true);
 608         }
 609         return GO_CLEAROBJ;
 610     }
 611
 612     if (obj == LAMP) {
 613         state_change(LAMP, LAMP_DARK);
 614         rspeak(DARK(game.loc) ?
 615                PITCH_DARK :
 616                NO_MESSAGE);
 617         return GO_CLEAROBJ;
 618     }
 619
 620     if (obj == DRAGON ||
 621         obj == VOLCANO) {
 622         rspeak(BEYOND_POWER);
 623         return GO_CLEAROBJ;
 624     }
 625
 626     rspeak(actions[verb].message);
 627     return GO_CLEAROBJ;
 628 }
 629
 630 static int feed(token_t verb, token_t obj)
 631 /*  Feed.  If bird, no seed.  Snake, dragon, troll: quip.  If dwarf, make him
 632  *  mad.  Bear, special. */
 633 {
 634     int spk = actions[verb].message;
 635     if (obj == BIRD) {
 636         rspeak(BIRD_PINING);
 637         return GO_CLEAROBJ;
 638     } else if (obj == SNAKE ||
 639                obj == DRAGON ||
 640                obj == TROLL) {
 641         spk = NOTHING_EDIBLE;
 642         if (obj == DRAGON && game.prop[DRAGON] != DRAGON_BARS)
 643             spk = RIDICULOUS_ATTEMPT;
 644         if (obj == TROLL)
 645             spk = TROLL_VICES;
 646         if (obj == SNAKE && !game.closed && HERE(BIRD)) {
 647             DESTROY(BIRD);
 648             spk = BIRD_DEVOURED;
 649         }
 650     } else if (obj == DWARF) {
 651         if (HERE(FOOD)) {
 652             game.dflag += 2;
 653             spk = REALLY_MAD;
 654         }
 655     } else if (obj == BEAR) {
 656         if (game.prop[BEAR] == UNTAMED_BEAR)
 657             spk = NOTHING_EDIBLE;
 658         if (game.prop[BEAR] == BEAR_DEAD)
 659             spk = RIDICULOUS_ATTEMPT;
 660         if (HERE(FOOD)) {
 661             DESTROY(FOOD);
 662             game.prop[BEAR] = SITTING_BEAR;
 663             game.fixed[AXE] = 0;
 664             game.prop[AXE] = AXE_HERE;
 665             spk = BEAR_TAMED;
 666         }
 667     } else if (obj == OGRE) {
 668         if (HERE(FOOD))
 669             spk = OGRE_FULL;
 670     } else {
 671         spk = AM_GAME;
 672     }
 673     rspeak(spk);
 674     return GO_CLEAROBJ;
 675 }
 676
 677 int fill(token_t verb, token_t obj)
 678 /*  Fill.  Bottle or urn must be empty, and liquid available.  (Vase
 679  *  is nasty.) */
 680 {
 681     if (obj == VASE) {
 682         if (LIQLOC(game.loc) == NO_OBJECT) {
 683             rspeak(FILL_INVALID);
 684             return GO_CLEAROBJ;
 685         }
 686         if (!TOTING(VASE)) {
 687             rspeak(ARENT_CARRYING);
 688             return GO_CLEAROBJ;
 689         }
 690         rspeak(SHATTER_VASE);
 691         game.prop[VASE] = VASE_BROKEN;
 692         game.fixed[VASE] = -1;
 693         return (discard(verb, VASE, true));
 694     }
 695
 696     if (obj == URN) {
 697         if (game.prop[URN] != URN_EMPTY) {
 698             rspeak(FULL_URN);
 699             return GO_CLEAROBJ;
 700         }
 701         if (!HERE(BOTTLE)) {
 702             rspeak(FILL_INVALID);
 703             return GO_CLEAROBJ;
 704         }
 705         int k = LIQUID();
 706         switch (k) {
 707         case WATER:
 708             game.prop[BOTTLE] = EMPTY_BOTTLE;
 709             rspeak(WATER_URN);
 710             break;
 711         case OIL:
 712             game.prop[URN] = URN_DARK;
 713             game.prop[BOTTLE] = EMPTY_BOTTLE;
 714             rspeak(OIL_URN);
 715             break;
 716         case NO_OBJECT:
 717         default:
 718             rspeak(FILL_INVALID);
 719             return GO_CLEAROBJ;
 720         }
 721         game.place[k] = LOC_NOWHERE;
 722         return GO_CLEAROBJ;
 723     }
 724     if (obj != NO_OBJECT && obj != BOTTLE) {
 725         rspeak(actions[verb].message);
 726         return GO_CLEAROBJ;
 727     }
 728     if (obj == NO_OBJECT && !HERE(BOTTLE))
 729         return GO_UNKNOWN;
 730
 731     if (HERE(URN) && game.prop[URN] != URN_EMPTY) {
 732         rspeak(URN_NOPOUR);
 733         return GO_CLEAROBJ;
 734     }
 735     if (LIQUID() != NO_OBJECT) {
 736         rspeak(BOTTLE_FULL);
 737         return GO_CLEAROBJ;
 738     }
 739     if (LIQLOC(game.loc) == NO_OBJECT) {
 740         rspeak(NO_LIQUID);
 741         return GO_CLEAROBJ;
 742     }
 743
 744     game.prop[BOTTLE] = (LIQLOC(game.loc) == OIL) ? OIL_BOTTLE : WATER_BOTTLE;
 745     if (TOTING(BOTTLE))
 746         game.place[LIQUID()] = CARRIED;
 747     if (LIQUID() == OIL)
 748         rspeak(BOTTLED_OIL);
 749     else
 750         rspeak(BOTTLED_WATER);
 751     return GO_CLEAROBJ;
 752 }
 753
 754 static int find(token_t verb, token_t obj)
 755 /* Find.  Might be carrying it, or it might be here.  Else give caveat. */
 756 {
 757     if (TOTING(obj)) {
 758         rspeak(ALREADY_CARRYING);
 759         return GO_CLEAROBJ;
 760     }
 761
 762     if (game.closed) {
 763         rspeak(NEEDED_NEARBY);
 764         return GO_CLEAROBJ;
 765     }
 766
 767     if (AT(obj) ||
 768         (LIQUID() == obj && AT(BOTTLE)) ||
 769         obj == LIQLOC(game.loc) ||
 770         (obj == DWARF && atdwrf(game.loc) > 0)) {
 771         rspeak(YOU_HAVEIT);
 772         return GO_CLEAROBJ;
 773     }
 774
 775
 776     rspeak(actions[verb].message);
 777     return GO_CLEAROBJ;
 778 }
 779
 780 static int fly(token_t verb, token_t obj)
 781 /* Fly.  Snide remarks unless hovering rug is here. */
 782 {
 783     if (obj == INTRANSITIVE) {
 784         if (!HERE(RUG)) {
 785             rspeak(FLAP_ARMS);
 786             return GO_CLEAROBJ;
 787         }
 788         if (game.prop[RUG] != RUG_HOVER) {
 789             rspeak(RUG_NOTHING2);
 790             return GO_CLEAROBJ;
 791         }
 792         obj = RUG;
 793     }
 794
 795     if (obj != RUG) {
 796         rspeak(actions[verb].message);
 797         return GO_CLEAROBJ;
 798     }
 799     if (game.prop[RUG] != RUG_HOVER) {
 800         rspeak(RUG_NOTHING1);
 801         return GO_CLEAROBJ;
 802     }
 803     game.oldlc2 = game.oldloc;
 804     game.oldloc = game.loc;
 805     /* FIXME: Arithmetic on location values */
 806     game.newloc = game.place[RUG] + game.fixed[RUG] - game.loc;
 807
 808     if (game.prop[SAPPH] >= 0) {
 809         rspeak(RUG_RETURNS);
 810     } else {
 811         rspeak(RUG_GOES);
 812     }
 813     return GO_TERMINATE;
 814 }
 815
 816 static int inven(void)
 817 /* Inventory. If object, treat same as find.  Else report on current burden. */
 818 {
 819     bool empty = true;
 820     for (int i = 1; i <= NOBJECTS; i++) {
 821         if (i == BEAR ||
 822             !TOTING(i))
 823             continue;
 824         if (empty) {
 825             rspeak(NOW_HOLDING);
 826             empty = false;
 827         }
 828         pspeak(i, touch, -1, false);
 829     }
 830     if (TOTING(BEAR))
 831         rspeak(TAME_BEAR);
 832     if (empty)
 833         rspeak(NO_CARRY);
 834     return GO_CLEAROBJ;
 835 }
 836
 837 static int light(token_t verb, token_t obj)
 838 /*  Light.  Applicable only to lamp and urn. */
 839 {
 840     if (obj == INTRANSITIVE) {
 841         if (HERE(LAMP) && game.prop[LAMP] == LAMP_DARK && game.limit >= 0)
 842             obj = LAMP;
 843         if (HERE(URN) && game.prop[URN] == URN_DARK)
 844             obj =  URN;
 845         if (obj == INTRANSITIVE ||
 846             (HERE(LAMP) && game.prop[LAMP] == LAMP_DARK && game.limit >= 0 &&
 847              HERE(URN) && game.prop[URN] == URN_DARK))
 848             return GO_UNKNOWN;
 849     }
 850
 851     if (obj == URN) {
 852         state_change(URN, game.prop[URN] == URN_EMPTY ?
 853                      URN_EMPTY :
 854                      URN_LIT);
 855         return GO_CLEAROBJ;
 856     } else {
 857         if (obj != LAMP) {
 858             rspeak(actions[verb].message);
 859             return GO_CLEAROBJ;
 860         }
 861         if (game.limit < 0) {
 862             rspeak(LAMP_OUT);
 863             return GO_CLEAROBJ;
 864         }
 865         state_change(LAMP, LAMP_BRIGHT);
 866         if (game.wzdark)
 867             return GO_TOP;
 868         else
 869             return GO_CLEAROBJ;
 870     }
 871 }
 872
 873 static int listen(void)
 874 /*  Listen.  Intransitive only.  Print stuff based on objsnd/locsnd. */
 875 {
 876     long sound = locations[game.loc].sound;
 877     if (sound != SILENT) {
 878         rspeak(sound);
 879         if (!locations[game.loc].loud)
 880             rspeak(NO_MESSAGE);
 881         return GO_CLEAROBJ;
 882     }
 883     for (int i = 1; i <= NOBJECTS; i++) {
 884         if (!HERE(i) ||
 885             objects[i].sounds[0] == NULL ||
 886             game.prop[i] < 0)
 887             continue;
 888         int mi =  game.prop[i];
 889         if (i == BIRD)
 890             mi += 3 * game.blooded;
 891         long packed_zzword = token_to_packed(game.zzword);
 892         pspeak(i, hear, mi, true, packed_zzword);
 893         rspeak(NO_MESSAGE);
 894         /* FIXME: Magic number, sensitive to bird state logic */
 895         if (i == BIRD && game.prop[i] == 5)
 896             DESTROY(BIRD);
 897         return GO_CLEAROBJ;
 898     }
 899     rspeak(ALL_SILENT);
 900     return GO_CLEAROBJ;
 901 }
 902
 903 static int lock(token_t verb, token_t obj)
 904 /* Lock, unlock, no object given.  Assume various things if present. */
 905 {
 906     if (obj == INTRANSITIVE) {
 907         if (HERE(CLAM))
 908             obj = CLAM;
 909         if (HERE(OYSTER))
 910             obj = OYSTER;
 911         if (AT(DOOR))
 912             obj = DOOR;
 913         if (AT(GRATE))
 914             obj = GRATE;
 915         if (HERE(CHAIN))
 916             obj = CHAIN;
 917         if (obj == INTRANSITIVE) {
 918             rspeak(NOTHING_LOCKED);
 919             return GO_CLEAROBJ;
 920         }
 921     }
 922
 923     /*  Lock, unlock object.  Special stuff for opening clam/oyster
 924      *  and for chain. */
 925     if (obj == GRATE ||
 926         obj == CHAIN) {
 927         if (HERE(KEYS)) {
 928             if (obj == CHAIN)
 929                 return chain(verb);
 930             if (game.closng) {
 931                 rspeak(EXIT_CLOSED);
 932                 if (!game.panic)
 933                     game.clock2 = PANICTIME;
 934                 game.panic = true;
 935                 return GO_CLEAROBJ ;
 936             } else {
 937                 state_change(GRATE, (verb == LOCK) ?
 938                              GRATE_CLOSED :
 939                              GRATE_OPEN);
 940                 return GO_CLEAROBJ;
 941             }
 942         }
 943         rspeak(NO_KEYS);
 944         return GO_CLEAROBJ;
 945     }
 946
 947     switch (obj) {
 948     case CLAM:
 949         if (verb == LOCK)
 950             rspeak(HUH_MAN);
 951         else if (!TOTING(TRIDENT))
 952             rspeak(OYSTER_OPENER);
 953         else {
 954             DESTROY(CLAM);
 955             drop(OYSTER, game.loc);
 956             drop(PEARL, LOC_CULDESAC);
 957             rspeak(PEARL_FALLS);
 958         }
 959         return GO_CLEAROBJ;
 960     case OYSTER:
 961         if (verb == LOCK)
 962             rspeak(HUH_MAN);
 963         else
 964             rspeak(OYSTER_OPENER);
 965
 966         return GO_CLEAROBJ;
 967     case DOOR:
 968         rspeak((game.prop[DOOR] == DOOR_UNRUSTED) ? OK_MAN : RUSTY_DOOR);
 969         break;
 970     case CAGE:
 971         rspeak( NO_LOCK);
 972         break;
 973     case KEYS:
 974         rspeak(CANNOT_UNLOCK);
 975         break;
 976     default:
 977         rspeak(actions[verb].message);
 978     }
 979
 980     return GO_CLEAROBJ;
 981 }
 982
 983 static int pour(token_t verb, token_t obj)
 984 /*  Pour.  If no object, or object is bottle, assume contents of bottle.
 985  *  special tests for pouring water or oil on plant or rusty door. */
 986 {
 987     if (obj == BOTTLE ||
 988         obj == NO_OBJECT)
 989         obj = LIQUID();
 990     if (obj == NO_OBJECT)
 991         return GO_UNKNOWN;
 992     if (!TOTING(obj)) {
 993         rspeak(actions[verb].message);
 994         return GO_CLEAROBJ;
 995     }
 996
 997     if (obj != OIL && obj != WATER) {
 998         rspeak(CANT_POUR);
 999         return GO_CLEAROBJ;
1000     }
1001     if (HERE(URN) && game.prop[URN] == URN_EMPTY)
1002         return fill(verb, URN);
1003     game.prop[BOTTLE] = EMPTY_BOTTLE;
1004     game.place[obj] = LOC_NOWHERE;
1005     if (!(AT(PLANT) ||
1006           AT(DOOR))) {
1007         rspeak(GROUND_WET);
1008         return GO_CLEAROBJ;
1009     }
1010     if (!AT(DOOR)) {
1011         if (obj == WATER) {
1012             /* cycle through the three plant states */
1013             state_change(PLANT, MOD(game.prop[PLANT] + 1, 3));
1014             game.prop[PLANT2] = game.prop[PLANT];
1015             return GO_MOVE;
1016         } else {
1017             rspeak(SHAKING_LEAVES);
1018             return GO_CLEAROBJ;
1019         }
1020     } else {
1021         state_change(DOOR, (obj == OIL) ?
1022                      DOOR_UNRUSTED :
1023                      DOOR_RUSTED);
1024         return GO_CLEAROBJ;
1025     }
1026 }
1027
1028 static int quit(void)
1029 /*  Quit.  Intransitive only.  Verify intent and exit if that's what he wants. */
1030 {
1031     if (yes(arbitrary_messages[REALLY_QUIT], arbitrary_messages[OK_MAN], arbitrary_messages[OK_MAN]))
1032         terminate(quitgame);
1033     return GO_CLEAROBJ;
1034 }
1035
1036 static int read(struct command_t command)
1037 /*  Read.  Print stuff based on objtxt.  Oyster (?) is special case. */
1038 {
1039     if (command.obj == INTRANSITIVE) {
1040         command.obj = 0;
1041         for (int i = 1; i <= NOBJECTS; i++) {
1042             if (HERE(i) && objects[i].texts[0] != NULL && game.prop[i] >= 0)
1043                 command.obj = command.obj * NOBJECTS + i;
1044         }
1045         if (command.obj > NOBJECTS ||
1046             command.obj == 0 ||
1047             DARK(game.loc))
1048             return GO_UNKNOWN;
1049     }
1050
1051     if (DARK(game.loc)) {
1052         sspeak(NO_SEE, command.raw1);
1053     } else if (command.obj == OYSTER && !game.clshnt && game.closed) {
1054         game.clshnt = yes(arbitrary_messages[CLUE_QUERY], arbitrary_messages[WAYOUT_CLUE], arbitrary_messages[OK_MAN]);
1055     } else if (objects[command.obj].texts[0] == NULL ||
1056                game.prop[command.obj] < 0) {
1057         rspeak(actions[command.verb].message);
1058     } else
1059         pspeak(command.obj, study, game.prop[command.obj], true);
1060     return GO_CLEAROBJ;
1061 }
1062
1063 static int reservoir(void)
1064 /*  Z'ZZZ (word gets recomputed at startup; different each game). */
1065 {
1066     /* FIXME: Arithmetic on state numbers */
1067     if (!AT(RESER) && game.loc != game.fixed[RESER] - 1) {
1068         rspeak(NOTHING_HAPPENS);
1069         return GO_CLEAROBJ;
1070     } else {
1071         state_change(RESER,
1072                      game.prop[RESER] == WATERS_PARTED ? WATERS_UNPARTED : WATERS_PARTED);
1073         if (AT(RESER))
1074             return GO_CLEAROBJ;
1075         else {
1076             game.oldlc2 = game.loc;
1077             game.newloc = LOC_NOWHERE;
1078             rspeak(NOT_BRIGHT);
1079             return GO_TERMINATE;
1080         }
1081     }
1082 }
1083
1084 static int rub(token_t verb, token_t obj)
1085 /* Rub.  Yields various snide remarks except for lit urn. */
1086 {
1087     if (obj == URN && game.prop[URN] == URN_LIT) {
1088         DESTROY(URN);
1089         drop(AMBER, game.loc);
1090         game.prop[AMBER] = AMBER_IN_ROCK;
1091         --game.tally;
1092         drop(CAVITY, game.loc);
1093         rspeak(URN_GENIES);
1094     } else if (obj != LAMP) {
1095         rspeak(PECULIAR_NOTHING);
1096     } else {
1097         rspeak(actions[verb].message);
1098     }
1099     return GO_CLEAROBJ;
1100 }
1101
1102 static int say(struct command_t *command)
1103 /* Say.  Echo WD2 (or WD1 if no WD2 (SAY WHAT?, etc.).)  Magic words override. */
1104 {
1105     if (command->wd2 > 0) {
1106         command->wd1 = command->wd2;
1107         strcpy(command->raw1, command->raw2);
1108     }
1109     char word1[TOKLEN + 1];
1110     packed_to_token(command->wd1, word1);
1111     int wd = (int) get_vocab_id(word1);
1112     if (wd == MOTION_WORD(XYZZY) ||
1113         wd == MOTION_WORD(PLUGH) ||
1114         wd == MOTION_WORD(PLOVER) ||
1115         wd == ACTION_WORD(GIANTWORDS) ||
1116         wd == ACTION_WORD(PART)) {
1117         /* FIXME: scribbles on the interpreter's command block */
1118         wordclear(&command->wd2);
1119         return GO_LOOKUP;
1120     }
1121     sspeak(OKEY_DOKEY, command->raw1);
1122     return GO_CLEAROBJ;
1123 }
1124
1125 static int throw_support(long spk)
1126 {
1127     rspeak(spk);
1128     drop(AXE, game.loc);
1129     return GO_MOVE;
1130 }
1131
1132 static int throw (struct command_t *command)
1133 /*  Throw.  Same as discard unless axe.  Then same as attack except
1134  *  ignore bird, and if dwarf is present then one might be killed.
1135  *  (Only way to do so!)  Axe also special for dragon, bear, and
1136  *  troll.  Treasures special for troll. */
1137 {
1138     if (!TOTING(command->obj)) {
1139         rspeak(actions[command->verb].message);
1140         return GO_CLEAROBJ;
1141     }
1142     if (objects[command->obj].is_treasure && AT(TROLL)) {
1143         /*  Snarf a treasure for the troll. */
1144         drop(command->obj, LOC_NOWHERE);
1145         move(TROLL, LOC_NOWHERE);
1146         move(TROLL + NOBJECTS, LOC_NOWHERE);
1147         drop(TROLL2, objects[TROLL].plac);
1148         drop(TROLL2 + NOBJECTS, objects[TROLL].fixd);
1149         juggle(CHASM);
1150         rspeak(TROLL_SATISFIED);
1151         return GO_CLEAROBJ;
1152     }
1153     if (command->obj == FOOD && HERE(BEAR)) {
1154         /* But throwing food is another story. */
1155         command->obj = BEAR;
1156         return (feed(command->verb, command->obj));
1157     }
1158     if (command->obj != AXE)
1159         return (discard(command->verb, command->obj, false));
1160     else {
1161         if (atdwrf(game.loc) <= 0) {
1162             if (AT(DRAGON) && game.prop[DRAGON] == DRAGON_BARS)
1163                 return throw_support(DRAGON_SCALES);
1164             if (AT(TROLL))
1165                 return throw_support(TROLL_RETURNS);
1166             else if (AT(OGRE))
1167                 return throw_support(OGRE_DODGE);
1168             else if (HERE(BEAR) && game.prop[BEAR] == UNTAMED_BEAR) {
1169                 /* This'll teach him to throw the axe at the bear! */
1170                 drop(AXE, game.loc);
1171                 game.fixed[AXE] = -1;
1172                 juggle(BEAR);
1173                 state_change(AXE, AXE_LOST);
1174                 return GO_CLEAROBJ;
1175             }
1176             command->obj = NO_OBJECT;
1177             return (attack(command));
1178         }
1179
1180         if (randrange(NDWARVES + 1) < game.dflag) {
1181             return throw_support(DWARF_DODGES);
1182         } else {
1183             long i = atdwrf(game.loc);
1184             game.dseen[i] = false;
1185             game.dloc[i] = LOC_NOWHERE;
1186             return throw_support((++game.dkill == 1) ?
1187                                  DWARF_SMOKE :
1188                                  KILLED_DWARF);
1189         }
1190     }
1191 }
1192
1193 static int wake(token_t verb, token_t obj)
1194 /* Wake.  Only use is to disturb the dwarves. */
1195 {
1196     if (obj != DWARF ||
1197         !game.closed) {
1198         rspeak(actions[verb].message);
1199         return GO_CLEAROBJ;
1200     } else {
1201         rspeak(PROD_DWARF);
1202         return GO_DWARFWAKE;
1203     }
1204 }
1205
1206 static int wave(token_t verb, token_t obj)
1207 /* Wave.  No effect unless waving rod at fissure or at bird. */
1208 {
1209     if (obj != ROD ||
1210         !TOTING(obj) ||
1211         (!HERE(BIRD) &&
1212          (game.closng ||
1213           !AT(FISSURE)))) {
1214         rspeak(((!TOTING(obj)) && (obj != ROD ||
1215                                    !TOTING(ROD2))) ?
1216                ARENT_CARRYING :
1217                actions[verb].message);
1218         return GO_CLEAROBJ;
1219     }
1220
1221     if (game.prop[BIRD] == BIRD_UNCAGED && game.loc == game.place[STEPS] && game.prop[JADE] < 0) {
1222         drop(JADE, game.loc);
1223         game.prop[JADE] = STATE_FOUND;
1224         --game.tally;
1225         rspeak(NECKLACE_FLY);
1226         return GO_CLEAROBJ;
1227     } else {
1228         if (game.closed) {
1229             rspeak((game.prop[BIRD] == BIRD_CAGED) ?
1230                    CAGE_FLY :
1231                    FREE_FLY);
1232             return GO_DWARFWAKE;
1233         }
1234         if (game.closng ||
1235             !AT(FISSURE)) {
1236             rspeak((game.prop[BIRD] == BIRD_CAGED) ?
1237                    CAGE_FLY :
1238                    FREE_FLY);
1239             return GO_CLEAROBJ;
1240         }
1241         if (HERE(BIRD))
1242             rspeak((game.prop[BIRD] == BIRD_CAGED) ?
1243                    CAGE_FLY :
1244                    FREE_FLY);
1245
1246         state_change(FISSURE,
1247                      game.prop[FISSURE] == BRIDGED ? UNBRIDGED : BRIDGED);
1248         return GO_CLEAROBJ;
1249     }
1250 }
1251
1252 int action(struct command_t *command)
1253 /*  Analyse a verb.  Remember what it was, go back for object if second word
1254  *  unless verb is "say", which snarfs arbitrary second word.
1255  */
1256 {
1257     if (command->part == unknown) {
1258         /*  Analyse an object word.  See if the thing is here, whether
1259          *  we've got a verb yet, and so on.  Object must be here
1260          *  unless verb is "find" or "invent(ory)" (and no new verb
1261          *  yet to be analysed).  Water and oil are also funny, since
1262          *  they are never actually dropped at any location, but might
1263          *  be here inside the bottle or urn or as a feature of the
1264          *  location. */
1265         if (HERE(command->obj))
1266             /* FALL THROUGH */;
1267         else if (command->obj == GRATE) {
1268             if (game.loc == LOC_START ||
1269                 game.loc == LOC_VALLEY ||
1270                 game.loc == LOC_SLIT) {
1271                 command->obj = DPRSSN;
1272             }
1273             if (game.loc == LOC_COBBLE ||
1274                 game.loc == LOC_DEBRIS ||
1275                 game.loc == LOC_AWKWARD ||
1276                 game.loc == LOC_BIRD ||
1277                 game.loc == LOC_PITTOP) {
1278                 command->obj = ENTRNC;
1279             }
1280         } else if (command->obj == DWARF && atdwrf(game.loc) > 0)
1281             /* FALL THROUGH */;
1282         else if ((LIQUID() == command->obj && HERE(BOTTLE)) ||
1283                  command->obj == LIQLOC(game.loc))
1284             /* FALL THROUGH */;
1285         else if (command->obj == OIL && HERE(URN) && game.prop[URN] != 0) {
1286             command->obj = URN;
1287             /* FALL THROUGH */;
1288         } else if (command->obj == PLANT && AT(PLANT2) && game.prop[PLANT2] != 0) {
1289             command->obj = PLANT2;
1290             /* FALL THROUGH */;
1291         } else if (command->obj == KNIFE && game.knfloc == game.loc) {
1292             game.knfloc = -1;
1293             rspeak(KNIVES_VANISH);
1294             return GO_CLEAROBJ;
1295         } else if (command->obj == ROD && HERE(ROD2)) {
1296             command->obj = ROD2;
1297             /* FALL THROUGH */;
1298         } else if ((command->verb == FIND ||
1299                     command->verb == INVENTORY) && command->wd2 <= 0)
1300             /* FALL THROUGH */;
1301         else {
1302             sspeak(NO_SEE, command->raw1);
1303             return GO_CLEAROBJ;
1304         }
1305
1306         if (command->wd2 > 0)
1307             return GO_WORD2;
1308         if (command->verb != 0)
1309             command->part = transitive;
1310     }
1311
1312     switch (command->part) {
1313     case intransitive:
1314         if (command->wd2 > 0 && command->verb != SAY)
1315             return GO_WORD2;
1316         if (command->verb == SAY)
1317             command->obj = command->wd2;
1318         if (command->obj == NO_OBJECT ||
1319             command->obj == INTRANSITIVE) {
1320             /*  Analyse an intransitive verb (ie, no object given yet). */
1321             switch (command->verb) {
1322             case CARRY:
1323                 return vcarry(command->verb, INTRANSITIVE);
1324             case  DROP:
1325                 return GO_UNKNOWN;
1326             case  SAY:
1327                 return GO_UNKNOWN;
1328             case  UNLOCK:
1329                 return lock(command->verb, INTRANSITIVE);
1330             case  NOTHING: {
1331                 rspeak(OK_MAN);
1332                 return (GO_CLEAROBJ);
1333             }
1334             case  LOCK:
1335                 return lock(command->verb, INTRANSITIVE);
1336             case  LIGHT:
1337                 return light(command->verb, INTRANSITIVE);
1338             case  EXTINGUISH:
1339                 return extinguish(command->verb, INTRANSITIVE);
1340             case  WAVE:
1341                 return GO_UNKNOWN;
1342             case  TAME:
1343                 return GO_UNKNOWN;
1344             case GO: {
1345                 rspeak(actions[command->verb].message);
1346                 return GO_CLEAROBJ;
1347             }
1348             case ATTACK:
1349                 return attack(command);
1350             case POUR:
1351                 return pour(command->verb, command->obj);
1352             case EAT:
1353                 return eat(command->verb, INTRANSITIVE);
1354             case DRINK:
1355                 return drink(command->verb, command->obj);
1356             case RUB:
1357                 return GO_UNKNOWN;
1358             case THROW:
1359                 return GO_UNKNOWN;
1360             case QUIT:
1361                 return quit();
1362             case FIND:
1363                 return GO_UNKNOWN;
1364             case INVENTORY:
1365                 return inven();
1366             case FEED:
1367                 return GO_UNKNOWN;
1368             case FILL:
1369                 return fill(command->verb, command->obj);
1370             case BLAST:
1371                 blast();
1372                 return GO_CLEAROBJ;
1373             case SCORE:
1374                 score(scoregame);
1375                 return GO_CLEAROBJ;
1376             case GIANTWORDS:
1377                 return bigwords(command->wd1);
1378             case BRIEF:
1379                 return brief();
1380             case READ:
1381                 command->obj = INTRANSITIVE;
1382                 return read(*command);
1383             case BREAK:
1384                 return GO_UNKNOWN;
1385             case WAKE:
1386                 return GO_UNKNOWN;
1387             case SAVE:
1388                 return suspend();
1389             case RESUME:
1390                 return resume();
1391             case FLY:
1392                 return fly(command->verb, INTRANSITIVE);
1393             case LISTEN:
1394                 return listen();
1395             case PART:
1396                 return reservoir();
1397             default:
1398                 BUG(INTRANSITIVE_ACTION_VERB_EXCEEDS_GOTO_LIST); // LCOV_EXCL_LINE
1399             }
1400         }
1401     /* FALLTHRU */
1402     case transitive:
1403         /*  Analyse a transitive verb. */
1404         switch (command->verb) {
1405         case  CARRY:
1406             return vcarry(command->verb, command->obj);
1407         case  DROP:
1408             return discard(command->verb, command->obj, false);
1409         case  SAY:
1410             return say(command);
1411         case  UNLOCK:
1412             return lock(command->verb, command->obj);
1413         case  NOTHING: {
1414             rspeak(OK_MAN);
1415             return (GO_CLEAROBJ);
1416         }
1417         case  LOCK:
1418             return lock(command->verb, command->obj);
1419         case LIGHT:
1420             return light(command->verb, command->obj);
1421         case EXTINGUISH:
1422             return extinguish(command->verb, command->obj);
1423         case WAVE:
1424             return wave(command->verb, command->obj);
1425         case TAME: {
1426             rspeak(actions[command->verb].message);
1427             return GO_CLEAROBJ;
1428         }
1429         case GO: {
1430             rspeak(actions[command->verb].message);
1431             return GO_CLEAROBJ;
1432         }
1433         case ATTACK:
1434             return attack(command);
1435         case POUR:
1436             return pour(command->verb, command->obj);
1437         case EAT:
1438             return eat(command->verb, command->obj);
1439         case DRINK:
1440             return drink(command->verb, command->obj);
1441         case RUB:
1442             return rub(command->verb, command->obj);
1443         case THROW:
1444             return throw (command);
1445         case QUIT: {
1446             rspeak(actions[command->verb].message);
1447             return GO_CLEAROBJ;
1448         }
1449         case FIND:
1450             return find(command->verb, command->obj);
1451         case INVENTORY:
1452             return find(command->verb, command->obj);
1453         case FEED:
1454             return feed(command->verb, command->obj);
1455         case FILL:
1456             return fill(command->verb, command->obj);
1457         case BLAST:
1458             blast();
1459             return GO_CLEAROBJ;
1460         case SCORE: {
1461             rspeak(actions[command->verb].message);
1462             return GO_CLEAROBJ;
1463         }
1464         case GIANTWORDS: {
1465             rspeak(actions[command->verb].message);
1466             return GO_CLEAROBJ;
1467         }
1468         case BRIEF: {
1469             rspeak(actions[command->verb].message);
1470             return GO_CLEAROBJ;
1471         }
1472         case READ:
1473             return read(*command);
1474         case BREAK:
1475             return vbreak(command->verb, command->obj);
1476         case WAKE:
1477             return wake(command->verb, command->obj);
1478         case SAVE: {
1479             rspeak(actions[command->verb].message);
1480             return GO_CLEAROBJ;
1481         }
1482         case RESUME: {
1483             rspeak(actions[command->verb].message);
1484             return GO_CLEAROBJ;
1485         }
1486         case FLY:
1487             return fly(command->verb, command->obj);
1488         case LISTEN: {
1489             rspeak(actions[command->verb].message);
1490             return GO_CLEAROBJ;
1491         }
1492         case PART:
1493             return reservoir();
1494         default:
1495             BUG(TRANSITIVE_ACTION_VERB_EXCEEDS_GOTO_LIST); // LCOV_EXCL_LINE
1496         }
1497     case unknown:
1498         /* Unknown verb, couldn't deduce object - might need hint */
1499         sspeak(WHAT_DO, command->raw1);
1500         return GO_CHECKHINT;
1501     default:
1502         BUG(SPEECHPART_NOT_TRANSITIVE_OR_INTRANSITIVE_OR_UNKNOWN); // LCOV_EXCL_LINE
1503     }
1504 }