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 int attack(struct command_t *command)
  10 /*  Attack.  Assume target if unambiguous.  "Throw" also links here.
  11  *  Attackable objects fall into two categories: enemies (snake,
  12  *  dwarf, etc.)  and others (bird, clam, machine).  Ambiguous if 2
  13  *  enemies, or no enemies but 2 others. */
  14 {
  15     vocab_t verb = command->verb;
  16     obj_t obj = command->obj;
  17
  18     if (obj == INTRANSITIVE) {
  19         int changes = 0;
  20         if (atdwrf(game.loc) > 0) {
  21             obj = DWARF;
  22             ++changes;
  23         }
  24         if (HERE(SNAKE)) {
  25             obj = SNAKE;
  26             ++changes;
  27         }
  28         if (AT(DRAGON) && game.prop[DRAGON] == DRAGON_BARS) {
  29             obj = DRAGON;
  30             ++changes;
  31         }
  32         if (AT(TROLL)) {
  33             obj = TROLL;
  34             ++changes;
  35         }
  36         if (AT(OGRE)) {
  37             obj = OGRE;
  38             ++changes;
  39         }
  40         if (HERE(BEAR) && game.prop[BEAR] == UNTAMED_BEAR) {
  41             obj = BEAR;
  42             ++changes;
  43         }
  44         /* check for low-priority targets */
  45         if (obj == INTRANSITIVE) {
  46             /* Can't attack bird or machine by throwing axe. */
  47             if (HERE(BIRD) && verb != THROW) {
  48                 obj = BIRD;
  49                 ++changes;
  50             }
  51             if (HERE(VEND) && verb != THROW) {
  52                 obj = VEND;
  53                 ++changes;
  54             }
  55             /* Clam and oyster both treated as clam for intransitive case;
  56              * no harm done. */
  57             if (HERE(CLAM) || HERE(OYSTER)) {
  58                 obj = CLAM;
  59                 ++changes;
  60             }
  61         }
  62         if (changes >= 2)
  63             return GO_UNKNOWN;
  64     }
  65
  66     if (obj == BIRD) {
  67         if (game.closed) {
  68             rspeak(UNHAPPY_BIRD);
  69         } else {
  70             DESTROY(BIRD);
  71             rspeak(BIRD_DEAD);
  72         }
  73         return GO_CLEAROBJ;
  74     }
  75     if (obj == VEND) {
  76         state_change(VEND,
  77                      game.prop[VEND] == VEND_BLOCKS ? VEND_UNBLOCKS : VEND_BLOCKS);
  78         return GO_CLEAROBJ;
  79     }
  80
  81     if (obj == BEAR) {
  82         switch (game.prop[BEAR]) {
  83         case UNTAMED_BEAR:
  84             rspeak(BEAR_HANDS);
  85             break;
  86         case SITTING_BEAR:
  87             rspeak(BEAR_CONFUSED);
  88             break;
  89         case CONTENTED_BEAR:
  90             rspeak(BEAR_CONFUSED);
  91             break;
  92         case BEAR_DEAD:
  93             rspeak(ALREADY_DEAD);
  94             break;
  95         }
  96         return GO_CLEAROBJ;
  97     }
  98     if (obj == DRAGON && game.prop[DRAGON] == DRAGON_BARS) {
  99         /*  Fun stuff for dragon.  If he insists on attacking it, win!
 100          *  Set game.prop to dead, move dragon to central loc (still
 101          *  fixed), move rug there (not fixed), and move him there,
 102          *  too.  Then do a null motion to get new description. */
 103         rspeak(BARE_HANDS_QUERY);
 104         if (silent_yes()) {
 105             // FIXME: setting wd1 is a workaround for broken logic
 106             command->wd1 = token_to_packed("Y");
 107         } else {
 108             // FIXME: setting wd1 is a workaround for broken logic
 109             command->wd1 = token_to_packed("N");
 110             return GO_CHECKFOO;
 111         }
 112         state_change(DRAGON, DRAGON_DEAD);
 113         game.prop[RUG] = RUG_FLOOR;
 114         /* Hardcoding LOC_SECRET5 as the dragon's death location is ugly.
 115          * The way it was computed before was worse; it depended on the
 116          * two dragon locations being LOC_SECRET4 and LOC_SECRET6 and
 117          * LOC_SECRET5 being right between them.
 118          */
 119         move(DRAGON + NOBJECTS, IS_FIXED);
 120         move(RUG + NOBJECTS, IS_FREE);
 121         move(DRAGON, LOC_SECRET5);
 122         move(RUG, LOC_SECRET5);
 123         drop(BLOOD, LOC_SECRET5);
 124         for (obj = 1; obj <= NOBJECTS; obj++) {
 125             if (game.place[obj] == objects[DRAGON].plac ||
 126                 game.place[obj] == objects[DRAGON].fixd)
 127                 move(obj, LOC_SECRET5);
 128         }
 129         game.loc = LOC_SECRET5;
 130         return GO_MOVE;
 131     }
 132
 133     if (obj == OGRE) {
 134         rspeak(OGRE_DODGE);
 135         if (atdwrf(game.loc) == 0)
 136             return GO_CLEAROBJ;
 137
 138         rspeak(KNIFE_THROWN);
 139         DESTROY(OGRE);
 140         int dwarves = 0;
 141         for (int i = 1; i < PIRATE; i++) {
 142             if (game.dloc[i] == game.loc) {
 143                 ++dwarves;
 144                 game.dloc[i] = LOC_LONGWEST;
 145                 game.dseen[i] = false;
 146             }
 147         }
 148         rspeak((dwarves > 1) ?
 149                OGRE_PANIC1 :
 150                OGRE_PANIC2);
 151         return GO_CLEAROBJ;
 152     }
 153
 154     switch (obj) {
 155     case INTRANSITIVE:
 156         rspeak(NO_TARGET);
 157         break;
 158     case CLAM:
 159     case OYSTER:
 160         rspeak(SHELL_IMPERVIOUS);
 161         break;
 162     case SNAKE:
 163         rspeak(SNAKE_WARNING);
 164         break;
 165     case DWARF:
 166         if (game.closed) {
 167             return GO_DWARFWAKE;
 168         }
 169         rspeak(BARE_HANDS_QUERY);
 170         break;
 171     case DRAGON:
 172         rspeak(ALREADY_DEAD);
 173         break;
 174     case TROLL:
 175         rspeak(ROCKY_TROLL);
 176         break;
 177     default:
 178         speak(actions[verb].message);
 179     }
 180     return GO_CLEAROBJ;
 181 }
 182
 183 static int bigwords(long id)
 184 /*  FEE FIE FOE FOO (AND FUM).  Advance to next state if given in proper order.
 185  *  Look up foo in special section of vocab to determine which word we've got.
 186  *  Last word zips the eggs back to the giant room (unless already there). */
 187 {
 188     if ((game.foobar == WORD_EMPTY && id == ACTION_WORD(FEE)) ||
 189         (game.foobar == ACTION_WORD(FEE) && id == ACTION_WORD(FIE)) ||
 190         (game.foobar == ACTION_WORD(FIE) && id == ACTION_WORD(FOE)) ||
 191         (game.foobar == ACTION_WORD(FOE) && id == ACTION_WORD(FOO)) ||
 192         (game.foobar == ACTION_WORD(FOE) && id == ACTION_WORD(FUM))) {
 193         game.foobar = id;
 194         if ((id != ACTION_WORD(FOO)) && (id != ACTION_WORD(FUM))) {
 195             rspeak(OK_MAN);
 196             return GO_CLEAROBJ;
 197         }
 198         game.foobar = WORD_EMPTY;
 199         if (game.place[EGGS] == objects[EGGS].plac ||
 200             (TOTING(EGGS) && game.loc == objects[EGGS].plac)) {
 201             rspeak(NOTHING_HAPPENS);
 202             return GO_CLEAROBJ;
 203         } else {
 204             /*  Bring back troll if we steal the eggs back from him before
 205              *  crossing. */
 206             if (game.place[EGGS] == LOC_NOWHERE && game.place[TROLL] == LOC_NOWHERE && game.prop[TROLL] == TROLL_UNPAID)
 207                 game.prop[TROLL] = TROLL_PAIDONCE;
 208             int k = EGGS_DONE;
 209             if (HERE(EGGS))
 210                 k = EGGS_VANISHED;
 211             if (game.loc == objects[EGGS].plac)
 212                 k = EGGS_HERE;
 213             move(EGGS, objects[EGGS].plac);
 214             pspeak(EGGS, look, k, true);
 215             return GO_CLEAROBJ;
 216         }
 217     } else {
 218         if (game.loc == LOC_GIANTROOM) {
 219             rspeak(START_OVER);
 220         } else {
 221             /* This is new begavior in Open Adventure - sounds better when
 222              * player isn't in the Giant Room. */
 223             rspeak(WELL_POINTLESS);
 224         }
 225         game.foobar = WORD_EMPTY;
 226         return GO_CLEAROBJ;
 227     }
 228 }
 229
 230 static void blast(void)
 231 /*  Blast.  No effect unless you've got dynamite, which is a neat trick! */
 232 {
 233     if (game.prop[ROD2] == STATE_NOTFOUND ||
 234         !game.closed)
 235         rspeak(REQUIRES_DYNAMITE);
 236     else {
 237         if (HERE(ROD2))
 238             game.bonus = SPLATTER_MESSAGE;
 239         else if (game.loc == LOC_NE)
 240             game.bonus = DEFEAT_MESSAGE;
 241         else
 242             game.bonus = VICTORY_MESSAGE;
 243         rspeak(game.bonus);
 244         terminate(endgame);
 245     }
 246 }
 247
 248 static int vbreak(vocab_t verb, obj_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] = IS_FIXED;
 265         return GO_CLEAROBJ;
 266     }
 267     speak(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, obj_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] != IS_FREE) {
 306         /* Next guard tests whether plant is tiny or stashed */
 307         if (obj == PLANT && game.prop[PLANT] <= PLANT_THIRSTY) {
 308             rspeak(DEEP_ROOTS);
 309             return GO_CLEAROBJ;
 310         }
 311         if (obj == BEAR && game.prop[BEAR] == SITTING_BEAR) {
 312             rspeak(BEAR_CHAINED);
 313             return GO_CLEAROBJ;
 314         }
 315         if (obj == CHAIN && game.prop[BEAR] != UNTAMED_BEAR) {
 316             rspeak(STILL_LOCKED);
 317             return GO_CLEAROBJ;
 318         }
 319         if (obj == URN) {
 320             rspeak(URN_NOBUDGE);
 321             return GO_CLEAROBJ;
 322         }
 323         if (obj == CAVITY) {
 324             rspeak(DOUGHNUT_HOLES);
 325             return GO_CLEAROBJ;
 326         }
 327         if (obj == BLOOD) {
 328             rspeak(FEW_DROPS);
 329             return GO_CLEAROBJ;
 330         }
 331         if (obj == RUG && game.prop[RUG] == RUG_HOVER) {
 332             rspeak(RUG_HOVERS);
 333             return GO_CLEAROBJ;
 334         }
 335         if (obj == SIGN) {
 336             rspeak(HAND_PASSTHROUGH);
 337             return GO_CLEAROBJ;
 338         }
 339         rspeak(YOU_JOKING);
 340         return GO_CLEAROBJ;
 341     }
 342
 343     if (obj == WATER ||
 344         obj == OIL) {
 345         if (!HERE(BOTTLE) ||
 346             LIQUID() != obj) {
 347             if (TOTING(BOTTLE)) {
 348                 if (game.prop[BOTTLE] == EMPTY_BOTTLE) {
 349                     return (fill(verb, BOTTLE));
 350                 } else if (game.prop[BOTTLE] != EMPTY_BOTTLE)
 351                     rspeak(BOTTLE_FULL);
 352                 return GO_CLEAROBJ;
 353             }
 354             rspeak(NO_CONTAINER);
 355             return GO_CLEAROBJ;
 356         }
 357         obj = BOTTLE;
 358     }
 359
 360     if (game.holdng >= INVLIMIT) {
 361         rspeak(CARRY_LIMIT);
 362         return GO_CLEAROBJ;
 363
 364     }
 365
 366     if (obj == BIRD && game.prop[BIRD] != BIRD_CAGED && STASHED(BIRD) != BIRD_CAGED) {
 367         if (game.prop[BIRD] == BIRD_FOREST_UNCAGED) {
 368             DESTROY(BIRD);
 369             rspeak(BIRD_CRAP);
 370             return GO_CLEAROBJ;
 371         }
 372         if (!TOTING(CAGE)) {
 373             rspeak(CANNOT_CARRY);
 374             return GO_CLEAROBJ;
 375         }
 376         if (TOTING(ROD)) {
 377             rspeak(BIRD_EVADES);
 378             return GO_CLEAROBJ;
 379         }
 380         game.prop[BIRD] = BIRD_CAGED;
 381     }
 382     if ((obj == BIRD ||
 383          obj == CAGE) &&
 384         (game.prop[BIRD] == BIRD_CAGED || STASHED(BIRD) == BIRD_CAGED))
 385         /* expression maps BIRD to CAGE and CAGE to BIRD */
 386         carry(BIRD + CAGE - obj, game.loc);
 387     carry(obj, game.loc);
 388     if (obj == BOTTLE && LIQUID() != NO_OBJECT)
 389         game.place[LIQUID()] = CARRIED;
 390     if (GSTONE(obj) && game.prop[obj] != STATE_FOUND) {
 391         game.prop[obj] = STATE_FOUND;
 392         game.prop[CAVITY] = CAVITY_EMPTY;
 393     }
 394     rspeak(OK_MAN);
 395     return GO_CLEAROBJ;
 396 }
 397
 398 static int chain(token_t verb)
 399 /* Do something to the bear's chain */
 400 {
 401     if (verb != LOCK) {
 402         if (game.prop[BEAR] == UNTAMED_BEAR) {
 403             rspeak(BEAR_BLOCKS);
 404             return GO_CLEAROBJ;
 405         }
 406         if (game.prop[CHAIN] == CHAIN_HEAP) {
 407             rspeak(ALREADY_UNLOCKED);
 408             return GO_CLEAROBJ;
 409         }
 410         game.prop[CHAIN] = CHAIN_HEAP;
 411         game.fixed[CHAIN] = IS_FREE;
 412         if (game.prop[BEAR] != BEAR_DEAD)
 413             game.prop[BEAR] = CONTENTED_BEAR;
 414
 415         switch (game.prop[BEAR]) {
 416         case BEAR_DEAD:
 417             game.fixed[BEAR] = IS_FIXED;
 418             break;
 419         default:
 420             game.fixed[BEAR] = IS_FREE;
 421         }
 422         rspeak(CHAIN_UNLOCKED);
 423         return GO_CLEAROBJ;
 424     }
 425
 426     if (game.prop[CHAIN] != CHAIN_HEAP) {
 427         rspeak(ALREADY_LOCKED);
 428         return GO_CLEAROBJ;
 429     }
 430     if (game.loc != objects[CHAIN].plac) {
 431         rspeak(NO_LOCKSITE);
 432         return GO_CLEAROBJ;
 433     }
 434
 435     game.prop[CHAIN] = CHAIN_FIXED;
 436
 437     if (TOTING(CHAIN))
 438         drop(CHAIN, game.loc);
 439     game.fixed[CHAIN] = IS_FIXED;
 440
 441     rspeak(CHAIN_LOCKED);
 442     return GO_CLEAROBJ;
 443 }
 444
 445 static int discard(token_t verb, obj_t obj)
 446 /*  Discard object.  "Throw" also comes here for most objects.  Special cases for
 447  *  bird (might attack snake or dragon) and cage (might contain bird) and vase.
 448  *  Drop coins at vending machine for extra batteries. */
 449 {
 450     if (TOTING(ROD2) && obj == ROD && !TOTING(ROD))
 451         obj = ROD2;
 452     if (!TOTING(obj)) {
 453         speak(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                 int k = (game.prop[RUG] == RUG_HOVER) ? RUG_FLOOR : RUG_HOVER;
 478                 game.prop[RUG] = k;
 479                 if (k == RUG_HOVER)
 480                     k = objects[SAPPH].plac;
 481                 move(RUG + NOBJECTS, k);
 482             }
 483         }
 484     } else if (obj == COINS && HERE(VEND)) {
 485         DESTROY(COINS);
 486         drop(BATTERY, game.loc);
 487         pspeak(BATTERY, look, FRESH_BATTERIES, true);
 488         return GO_CLEAROBJ;
 489     } else if (obj == BIRD && AT(DRAGON) && game.prop[DRAGON] == DRAGON_BARS) {
 490         rspeak(BIRD_BURNT);
 491         DESTROY(BIRD);
 492         return GO_CLEAROBJ;
 493     } else if (obj == BEAR && AT(TROLL)) {
 494         state_change(TROLL, TROLL_GONE);
 495         move(TROLL, LOC_NOWHERE);
 496         move(TROLL + NOBJECTS, IS_FREE);
 497         move(TROLL2, objects[TROLL].plac);
 498         move(TROLL2 + NOBJECTS, objects[TROLL].fixd);
 499         juggle(CHASM);
 500     } else if (obj != VASE ||
 501                game.loc == objects[PILLOW].plac) {
 502         rspeak(OK_MAN);
 503     } else {
 504         state_change(VASE, AT(PILLOW)
 505                      ? VASE_WHOLE
 506                      : VASE_DROPPED);
 507         if (game.prop[VASE] != VASE_WHOLE)
 508             game.fixed[VASE] = IS_FIXED;
 509     }
 510     int k = LIQUID();
 511     if (k == obj)
 512         obj = BOTTLE;
 513     if (obj == BOTTLE && k != NO_OBJECT)
 514         game.place[k] = LOC_NOWHERE;
 515     if (obj == CAGE && game.prop[BIRD] == BIRD_CAGED)
 516         drop(BIRD, game.loc);
 517     drop(obj, game.loc);
 518     if (obj != BIRD)
 519         return GO_CLEAROBJ;
 520     game.prop[BIRD] = BIRD_UNCAGED;
 521     if (FOREST(game.loc))
 522         game.prop[BIRD] = BIRD_FOREST_UNCAGED;
 523     return GO_CLEAROBJ;
 524 }
 525
 526 static int drink(token_t verb, obj_t obj)
 527 /*  Drink.  If no object, assume water and look for it here.  If water is in
 528  *  the bottle, drink that, else must be at a water loc, so drink stream. */
 529 {
 530     if (obj == INTRANSITIVE && LIQLOC(game.loc) != WATER &&
 531         (LIQUID() != WATER || !HERE(BOTTLE))) {
 532         return GO_UNKNOWN;
 533     }
 534
 535     if (obj == BLOOD) {
 536         DESTROY(BLOOD);
 537         state_change(DRAGON, DRAGON_BLOODLESS);
 538         game.blooded = true;
 539         return GO_CLEAROBJ;
 540     }
 541
 542     if (obj != INTRANSITIVE && obj != WATER) {
 543         rspeak(RIDICULOUS_ATTEMPT);
 544         return GO_CLEAROBJ;
 545     }
 546     if (LIQUID() == WATER && HERE(BOTTLE)) {
 547         game.place[WATER] = LOC_NOWHERE;
 548         state_change(BOTTLE, EMPTY_BOTTLE);
 549         return GO_CLEAROBJ;
 550     }
 551
 552     speak(actions[verb].message);
 553     return GO_CLEAROBJ;
 554 }
 555
 556 static int eat(token_t verb, obj_t obj)
 557 /*  Eat.  Intransitive: assume food if present, else ask what.  Transitive: food
 558  *  ok, some things lose appetite, rest are ridiculous. */
 559 {
 560     switch (obj) {
 561     case INTRANSITIVE:
 562         if (!HERE(FOOD))
 563             return GO_UNKNOWN;
 564     case FOOD:
 565         DESTROY(FOOD);
 566         rspeak(THANKS_DELICIOUS);
 567         break;
 568     case BIRD:
 569     case SNAKE:
 570     case CLAM:
 571     case OYSTER:
 572     case DWARF:
 573     case DRAGON:
 574     case TROLL:
 575     case BEAR:
 576     case OGRE:
 577         rspeak(LOST_APPETITE);
 578         break;
 579     default:
 580         speak(actions[verb].message);
 581     }
 582     return GO_CLEAROBJ;
 583 }
 584
 585 static int extinguish(token_t verb, obj_t obj)
 586 /* Extinguish.  Lamp, urn, dragon/volcano (nice try). */
 587 {
 588     if (obj == INTRANSITIVE) {
 589         if (HERE(LAMP) && game.prop[LAMP] == LAMP_BRIGHT)
 590             obj = LAMP;
 591         if (HERE(URN) && game.prop[URN] == URN_LIT)
 592             obj = URN;
 593         if (obj == INTRANSITIVE)
 594             return GO_UNKNOWN;
 595     }
 596
 597     switch (obj) {
 598     case URN:
 599         if (game.prop[URN] != URN_EMPTY) {
 600             state_change(URN, URN_DARK);
 601         } else {
 602             pspeak(URN, change, URN_DARK, true);
 603         }
 604         break;
 605     case LAMP:
 606         state_change(LAMP, LAMP_DARK);
 607         rspeak(DARK(game.loc) ?
 608                PITCH_DARK :
 609                NO_MESSAGE);
 610         break;
 611     case DRAGON:
 612     case VOLCANO:
 613         rspeak(BEYOND_POWER);
 614         break;
 615     default:
 616         speak(actions[verb].message);
 617     }
 618     return GO_CLEAROBJ;
 619 }
 620
 621 static int feed(token_t verb, obj_t obj)
 622 /*  Feed.  If bird, no seed.  Snake, dragon, troll: quip.  If dwarf, make him
 623  *  mad.  Bear, special. */
 624 {
 625     switch (obj) {
 626     case BIRD:
 627         rspeak(BIRD_PINING);
 628         break;
 629     case DRAGON:
 630         if (game.prop[DRAGON] != DRAGON_BARS)
 631             rspeak(RIDICULOUS_ATTEMPT);
 632         else
 633             rspeak(NOTHING_EDIBLE);
 634         break;
 635     case SNAKE:
 636         if (!game.closed && HERE(BIRD)) {
 637             DESTROY(BIRD);
 638             rspeak(BIRD_DEVOURED);
 639         } else
 640             rspeak(NOTHING_EDIBLE);
 641         break;
 642     case TROLL:
 643         rspeak(TROLL_VICES);
 644         break;
 645     case DWARF:
 646         if (HERE(FOOD)) {
 647             game.dflag += 2;
 648             rspeak(REALLY_MAD);
 649         } else
 650             speak(actions[verb].message);
 651         break;
 652     case BEAR:
 653         if (game.prop[BEAR] == BEAR_DEAD) {
 654             rspeak(RIDICULOUS_ATTEMPT);
 655             break;
 656         }
 657         if (game.prop[BEAR] == UNTAMED_BEAR) {
 658             if (HERE(FOOD)) {
 659                 DESTROY(FOOD);
 660                 game.fixed[AXE] = IS_FREE;
 661                 game.prop[AXE] = AXE_HERE;
 662                 state_change(BEAR, SITTING_BEAR);
 663             } else
 664                 rspeak(NOTHING_EDIBLE);
 665             break;
 666         }
 667         speak(actions[verb].message);
 668         break;
 669     case OGRE:
 670         if (HERE(FOOD))
 671             rspeak(OGRE_FULL);
 672         else
 673             speak(actions[verb].message);
 674         break;
 675     default:
 676         rspeak(AM_GAME);
 677     }
 678     return GO_CLEAROBJ;
 679 }
 680
 681 int fill(token_t verb, obj_t obj)
 682 /*  Fill.  Bottle or urn must be empty, and liquid available.  (Vase
 683  *  is nasty.) */
 684 {
 685     if (obj == VASE) {
 686         if (LIQLOC(game.loc) == NO_OBJECT) {
 687             rspeak(FILL_INVALID);
 688             return GO_CLEAROBJ;
 689         }
 690         if (!TOTING(VASE)) {
 691             rspeak(ARENT_CARRYING);
 692             return GO_CLEAROBJ;
 693         }
 694         rspeak(SHATTER_VASE);
 695         game.prop[VASE] = VASE_BROKEN;
 696         game.fixed[VASE] = IS_FIXED;
 697         drop(VASE, game.loc);
 698         return GO_CLEAROBJ;
 699     }
 700
 701     if (obj == URN) {
 702         if (game.prop[URN] != URN_EMPTY) {
 703             rspeak(FULL_URN);
 704             return GO_CLEAROBJ;
 705         }
 706         if (!HERE(BOTTLE)) {
 707             rspeak(FILL_INVALID);
 708             return GO_CLEAROBJ;
 709         }
 710         int k = LIQUID();
 711         switch (k) {
 712         case WATER:
 713             game.prop[BOTTLE] = EMPTY_BOTTLE;
 714             rspeak(WATER_URN);
 715             break;
 716         case OIL:
 717             game.prop[URN] = URN_DARK;
 718             game.prop[BOTTLE] = EMPTY_BOTTLE;
 719             rspeak(OIL_URN);
 720             break;
 721         case NO_OBJECT:
 722         default:
 723             rspeak(FILL_INVALID);
 724             return GO_CLEAROBJ;
 725         }
 726         game.place[k] = LOC_NOWHERE;
 727         return GO_CLEAROBJ;
 728     }
 729     if (obj != INTRANSITIVE && obj != BOTTLE) {
 730         speak(actions[verb].message);
 731         return GO_CLEAROBJ;
 732     }
 733     if (obj == INTRANSITIVE && !HERE(BOTTLE))
 734         return GO_UNKNOWN;
 735
 736     if (HERE(URN) && game.prop[URN] != URN_EMPTY) {
 737         rspeak(URN_NOPOUR);
 738         return GO_CLEAROBJ;
 739     }
 740     if (LIQUID() != NO_OBJECT) {
 741         rspeak(BOTTLE_FULL);
 742         return GO_CLEAROBJ;
 743     }
 744     if (LIQLOC(game.loc) == NO_OBJECT) {
 745         rspeak(NO_LIQUID);
 746         return GO_CLEAROBJ;
 747     }
 748
 749     state_change(BOTTLE, (LIQLOC(game.loc) == OIL)
 750                  ? OIL_BOTTLE
 751                  : WATER_BOTTLE);
 752     if (TOTING(BOTTLE))
 753         game.place[LIQUID()] = CARRIED;
 754     return GO_CLEAROBJ;
 755 }
 756
 757 static int find(token_t verb, obj_t obj)
 758 /* Find.  Might be carrying it, or it might be here.  Else give caveat. */
 759 {
 760     if (TOTING(obj)) {
 761         rspeak(ALREADY_CARRYING);
 762         return GO_CLEAROBJ;
 763     }
 764
 765     if (game.closed) {
 766         rspeak(NEEDED_NEARBY);
 767         return GO_CLEAROBJ;
 768     }
 769
 770     if (AT(obj) ||
 771         (LIQUID() == obj && AT(BOTTLE)) ||
 772         obj == LIQLOC(game.loc) ||
 773         (obj == DWARF && atdwrf(game.loc) > 0)) {
 774         rspeak(YOU_HAVEIT);
 775         return GO_CLEAROBJ;
 776     }
 777
 778
 779     speak(actions[verb].message);
 780     return GO_CLEAROBJ;
 781 }
 782
 783 static int fly(token_t verb, obj_t obj)
 784 /* Fly.  Snide remarks unless hovering rug is here. */
 785 {
 786     if (obj == INTRANSITIVE) {
 787         if (!HERE(RUG)) {
 788             rspeak(FLAP_ARMS);
 789             return GO_CLEAROBJ;
 790         }
 791         if (game.prop[RUG] != RUG_HOVER) {
 792             rspeak(RUG_NOTHING2);
 793             return GO_CLEAROBJ;
 794         }
 795         obj = RUG;
 796     }
 797
 798     if (obj != RUG) {
 799         speak(actions[verb].message);
 800         return GO_CLEAROBJ;
 801     }
 802     if (game.prop[RUG] != RUG_HOVER) {
 803         rspeak(RUG_NOTHING1);
 804         return GO_CLEAROBJ;
 805     }
 806     game.oldlc2 = game.oldloc;
 807     game.oldloc = game.loc;
 808
 809     if (game.prop[SAPPH] == STATE_NOTFOUND) {
 810         game.newloc = game.place[SAPPH];
 811         rspeak(RUG_GOES);
 812     } else {
 813         game.newloc = LOC_CLIFF;
 814         rspeak(RUG_RETURNS);
 815     }
 816     return GO_TERMINATE;
 817 }
 818
 819 static int inven(void)
 820 /* Inventory. If object, treat same as find.  Else report on current burden. */
 821 {
 822     bool empty = true;
 823     for (obj_t i = 1; i <= NOBJECTS; i++) {
 824         if (i == BEAR ||
 825             !TOTING(i))
 826             continue;
 827         if (empty) {
 828             rspeak(NOW_HOLDING);
 829             empty = false;
 830         }
 831         pspeak(i, touch, -1, false);
 832     }
 833     if (TOTING(BEAR))
 834         rspeak(TAME_BEAR);
 835     if (empty)
 836         rspeak(NO_CARRY);
 837     return GO_CLEAROBJ;
 838 }
 839
 840 static int light(token_t verb, obj_t obj)
 841 /*  Light.  Applicable only to lamp and urn. */
 842 {
 843     if (obj == INTRANSITIVE) {
 844         int selects = 0;
 845         if (HERE(LAMP) && game.prop[LAMP] == LAMP_DARK && game.limit >= 0) {
 846             obj = LAMP;
 847             selects++;
 848         }
 849         if (HERE(URN) && game.prop[URN] == URN_DARK) {
 850             obj =  URN;
 851             selects++;
 852         }
 853         if (selects != 1)
 854             return GO_UNKNOWN;
 855     }
 856
 857     switch (obj) {
 858     case URN:
 859         state_change(URN, game.prop[URN] == URN_EMPTY ?
 860                      URN_EMPTY :
 861                      URN_LIT);
 862         break;
 863     case LAMP:
 864         if (game.limit < 0) {
 865             rspeak(LAMP_OUT);
 866             break;
 867         }
 868         state_change(LAMP, LAMP_BRIGHT);
 869         if (game.wzdark)
 870             return GO_TOP;
 871         break;
 872     default:
 873         speak(actions[verb].message);
 874     }
 875     return GO_CLEAROBJ;
 876 }
 877
 878 static int listen(void)
 879 /*  Listen.  Intransitive only.  Print stuff based on object sound proprties. */
 880 {
 881     long sound = locations[game.loc].sound;
 882     if (sound != SILENT) {
 883         rspeak(sound);
 884         if (!locations[game.loc].loud)
 885             rspeak(NO_MESSAGE);
 886         return GO_CLEAROBJ;
 887     }
 888     for (obj_t i = 1; i <= NOBJECTS; i++) {
 889         if (!HERE(i) ||
 890             objects[i].sounds[0] == NULL ||
 891             game.prop[i] < 0)
 892             continue;
 893         int mi =  game.prop[i];
 894         /* FIXME: Weird magic on object states */
 895         if (i == BIRD)
 896             mi += 3 * game.blooded;
 897         long packed_zzword = token_to_packed(game.zzword);
 898         pspeak(i, hear, mi, true, packed_zzword);
 899         rspeak(NO_MESSAGE);
 900         if (i == BIRD && mi == BIRD_ENDSTATE)
 901             DESTROY(BIRD);
 902         return GO_CLEAROBJ;
 903     }
 904     rspeak(ALL_SILENT);
 905     return GO_CLEAROBJ;
 906 }
 907
 908 static int lock(token_t verb, obj_t obj)
 909 /* Lock, unlock, no object given.  Assume various things if present. */
 910 {
 911     if (obj == INTRANSITIVE) {
 912         if (HERE(CLAM))
 913             obj = CLAM;
 914         if (HERE(OYSTER))
 915             obj = OYSTER;
 916         if (AT(DOOR))
 917             obj = DOOR;
 918         if (AT(GRATE))
 919             obj = GRATE;
 920         if (HERE(CHAIN))
 921             obj = CHAIN;
 922         if (obj == INTRANSITIVE) {
 923             rspeak(NOTHING_LOCKED);
 924             return GO_CLEAROBJ;
 925         }
 926     }
 927
 928     /*  Lock, unlock object.  Special stuff for opening clam/oyster
 929      *  and for chain. */
 930
 931     switch (obj) {
 932     case CHAIN:
 933         if (HERE(KEYS)) {
 934             return chain(verb);
 935         } else
 936             rspeak(NO_KEYS);
 937         break;
 938     case GRATE:
 939         if (HERE(KEYS)) {
 940             if (game.closng) {
 941                 rspeak(EXIT_CLOSED);
 942                 if (!game.panic)
 943                     game.clock2 = PANICTIME;
 944                 game.panic = true;
 945             } else {
 946                 state_change(GRATE, (verb == LOCK) ?
 947                              GRATE_CLOSED :
 948                              GRATE_OPEN);
 949             }
 950         } else
 951             rspeak(NO_KEYS);
 952         break;
 953     case CLAM:
 954         if (verb == LOCK)
 955             rspeak(HUH_MAN);
 956         else if (!TOTING(TRIDENT))
 957             rspeak(OYSTER_OPENER);
 958         else {
 959             DESTROY(CLAM);
 960             drop(OYSTER, game.loc);
 961             drop(PEARL, LOC_CULDESAC);
 962             rspeak(PEARL_FALLS);
 963         }
 964         break;
 965     case OYSTER:
 966         if (verb == LOCK)
 967             rspeak(HUH_MAN);
 968         else
 969             rspeak(OYSTER_OPENER);
 970         break;
 971     case DOOR:
 972         rspeak((game.prop[DOOR] == DOOR_UNRUSTED) ? OK_MAN : RUSTY_DOOR);
 973         break;
 974     case CAGE:
 975         rspeak( NO_LOCK);
 976         break;
 977     case KEYS:
 978         rspeak(CANNOT_UNLOCK);
 979         break;
 980     default:
 981         speak(actions[verb].message);
 982     }
 983
 984     return GO_CLEAROBJ;
 985 }
 986
 987 static int pour(token_t verb, obj_t obj)
 988 /*  Pour.  If no object, or object is bottle, assume contents of bottle.
 989  *  special tests for pouring water or oil on plant or rusty door. */
 990 {
 991     if (obj == BOTTLE ||
 992         obj == INTRANSITIVE)
 993         obj = LIQUID();
 994     if (obj == NO_OBJECT)
 995         return GO_UNKNOWN;
 996     if (!TOTING(obj)) {
 997         speak(actions[verb].message);
 998         return GO_CLEAROBJ;
 999     }
1000
1001     if (obj != OIL && obj != WATER) {
1002         rspeak(CANT_POUR);
1003         return GO_CLEAROBJ;
1004     }
1005     if (HERE(URN) && game.prop[URN] == URN_EMPTY)
1006         return fill(verb, URN);
1007     game.prop[BOTTLE] = EMPTY_BOTTLE;
1008     game.place[obj] = LOC_NOWHERE;
1009     if (!(AT(PLANT) ||
1010           AT(DOOR))) {
1011         rspeak(GROUND_WET);
1012         return GO_CLEAROBJ;
1013     }
1014     if (!AT(DOOR)) {
1015         if (obj == WATER) {
1016             /* cycle through the three plant states */
1017             state_change(PLANT, MOD(game.prop[PLANT] + 1, 3));
1018             game.prop[PLANT2] = game.prop[PLANT];
1019             return GO_MOVE;
1020         } else {
1021             rspeak(SHAKING_LEAVES);
1022             return GO_CLEAROBJ;
1023         }
1024     } else {
1025         state_change(DOOR, (obj == OIL) ?
1026                      DOOR_UNRUSTED :
1027                      DOOR_RUSTED);
1028         return GO_CLEAROBJ;
1029     }
1030 }
1031
1032 static int quit(void)
1033 /*  Quit.  Intransitive only.  Verify intent and exit if that's what he wants. */
1034 {
1035     if (yes(arbitrary_messages[REALLY_QUIT], arbitrary_messages[OK_MAN], arbitrary_messages[OK_MAN]))
1036         terminate(quitgame);
1037     return GO_CLEAROBJ;
1038 }
1039
1040 static int read(struct command_t command)
1041 /*  Read.  Print stuff based on objtxt.  Oyster (?) is special case. */
1042 {
1043     if (command.obj == INTRANSITIVE) {
1044         command.obj = NO_OBJECT;
1045         for (int i = 1; i <= NOBJECTS; i++) {
1046             if (HERE(i) && objects[i].texts[0] != NULL && game.prop[i] >= 0)
1047                 command.obj = command.obj * NOBJECTS + i;
1048         }
1049         if (command.obj > NOBJECTS ||
1050             command.obj == NO_OBJECT ||
1051             DARK(game.loc))
1052             return GO_UNKNOWN;
1053     }
1054
1055     if (DARK(game.loc)) {
1056         sspeak(NO_SEE, command.raw1);
1057     } else if (command.obj == OYSTER && !game.clshnt && game.closed) {
1058         game.clshnt = yes(arbitrary_messages[CLUE_QUERY], arbitrary_messages[WAYOUT_CLUE], arbitrary_messages[OK_MAN]);
1059     } else if (objects[command.obj].texts[0] == NULL ||
1060                game.prop[command.obj] == STATE_NOTFOUND) {
1061         speak(actions[command.verb].message);
1062     } else
1063         pspeak(command.obj, study, game.prop[command.obj], true);
1064     return GO_CLEAROBJ;
1065 }
1066
1067 static int reservoir(void)
1068 /*  Z'ZZZ (word gets recomputed at startup; different each game). */
1069 {
1070     if (!AT(RESER) && game.loc != LOC_RESBOTTOM) {
1071         rspeak(NOTHING_HAPPENS);
1072         return GO_CLEAROBJ;
1073     } else {
1074         state_change(RESER,
1075                      game.prop[RESER] == WATERS_PARTED ? WATERS_UNPARTED : WATERS_PARTED);
1076         if (AT(RESER))
1077             return GO_CLEAROBJ;
1078         else {
1079             game.oldlc2 = game.loc;
1080             game.newloc = LOC_NOWHERE;
1081             rspeak(NOT_BRIGHT);
1082             return GO_TERMINATE;
1083         }
1084     }
1085 }
1086
1087 static int rub(token_t verb, obj_t obj)
1088 /* Rub.  Yields various snide remarks except for lit urn. */
1089 {
1090     if (obj == URN && game.prop[URN] == URN_LIT) {
1091         DESTROY(URN);
1092         drop(AMBER, game.loc);
1093         game.prop[AMBER] = AMBER_IN_ROCK;
1094         --game.tally;
1095         drop(CAVITY, game.loc);
1096         rspeak(URN_GENIES);
1097     } else if (obj != LAMP) {
1098         rspeak(PECULIAR_NOTHING);
1099     } else {
1100         speak(actions[verb].message);
1101     }
1102     return GO_CLEAROBJ;
1103 }
1104
1105 static int say(struct command_t *command)
1106 /* Say.  Echo WD2 (or WD1 if no WD2 (SAY WHAT?, etc.).)  Magic words override. */
1107 {
1108     if (command->wd2 > 0) {
1109         command->wd1 = command->wd2;
1110         strcpy(command->raw1, command->raw2);
1111     }
1112     char word1[TOKLEN + 1];
1113     packed_to_token(command->wd1, word1);
1114     int wd = (int) get_vocab_id(word1);
1115     if (wd == MOTION_WORD(XYZZY) ||
1116         wd == MOTION_WORD(PLUGH) ||
1117         wd == MOTION_WORD(PLOVER) ||
1118         wd == ACTION_WORD(FEE) ||
1119         wd == ACTION_WORD(FIE) ||
1120         wd == ACTION_WORD(FOE) ||
1121         wd == ACTION_WORD(FOO) ||
1122         wd == ACTION_WORD(FUM) ||
1123         wd == ACTION_WORD(PART)) {
1124         /* FIXME: scribbles on the interpreter's command block */
1125         wordclear(&command->wd2);
1126         return GO_LOOKUP;
1127     }
1128     sspeak(OKEY_DOKEY, command->raw1);
1129     return GO_CLEAROBJ;
1130 }
1131
1132 static int throw_support(long spk)
1133 {
1134     rspeak(spk);
1135     drop(AXE, game.loc);
1136     return GO_MOVE;
1137 }
1138
1139 static int throw (struct command_t *command)
1140 /*  Throw.  Same as discard unless axe.  Then same as attack except
1141  *  ignore bird, and if dwarf is present then one might be killed.
1142  *  (Only way to do so!)  Axe also special for dragon, bear, and
1143  *  troll.  Treasures special for troll. */
1144 {
1145     if (!TOTING(command->obj)) {
1146         speak(actions[command->verb].message);
1147         return GO_CLEAROBJ;
1148     }
1149     if (objects[command->obj].is_treasure && AT(TROLL)) {
1150         /*  Snarf a treasure for the troll. */
1151         drop(command->obj, LOC_NOWHERE);
1152         move(TROLL, LOC_NOWHERE);
1153         move(TROLL + NOBJECTS, IS_FREE);
1154         drop(TROLL2, objects[TROLL].plac);
1155         drop(TROLL2 + NOBJECTS, objects[TROLL].fixd);
1156         juggle(CHASM);
1157         rspeak(TROLL_SATISFIED);
1158         return GO_CLEAROBJ;
1159     }
1160     if (command->obj == FOOD && HERE(BEAR)) {
1161         /* But throwing food is another story. */
1162         command->obj = BEAR;
1163         return (feed(command->verb, command->obj));
1164     }
1165     if (command->obj != AXE)
1166         return (discard(command->verb, command->obj));
1167     else {
1168         if (atdwrf(game.loc) <= 0) {
1169             if (AT(DRAGON) && game.prop[DRAGON] == DRAGON_BARS)
1170                 return throw_support(DRAGON_SCALES);
1171             if (AT(TROLL))
1172                 return throw_support(TROLL_RETURNS);
1173             if (AT(OGRE))
1174                 return throw_support(OGRE_DODGE);
1175             if (HERE(BEAR) && game.prop[BEAR] == UNTAMED_BEAR) {
1176                 /* This'll teach him to throw the axe at the bear! */
1177                 drop(AXE, game.loc);
1178                 game.fixed[AXE] = IS_FIXED;
1179                 juggle(BEAR);
1180                 state_change(AXE, AXE_LOST);
1181                 return GO_CLEAROBJ;
1182             }
1183             command->obj = INTRANSITIVE;
1184             return (attack(command));
1185         }
1186
1187         if (randrange(NDWARVES + 1) < game.dflag) {
1188             return throw_support(DWARF_DODGES);
1189         } else {
1190             long i = atdwrf(game.loc);
1191             game.dseen[i] = false;
1192             game.dloc[i] = LOC_NOWHERE;
1193             return throw_support((++game.dkill == 1) ?
1194                                  DWARF_SMOKE :
1195                                  KILLED_DWARF);
1196         }
1197     }
1198 }
1199
1200 static int wake(token_t verb, obj_t obj)
1201 /* Wake.  Only use is to disturb the dwarves. */
1202 {
1203     if (obj != DWARF ||
1204         !game.closed) {
1205         speak(actions[verb].message);
1206         return GO_CLEAROBJ;
1207     } else {
1208         rspeak(PROD_DWARF);
1209         return GO_DWARFWAKE;
1210     }
1211 }
1212
1213 static int wave(token_t verb, obj_t obj)
1214 /* Wave.  No effect unless waving rod at fissure or at bird. */
1215 {
1216     if (obj != ROD ||
1217         !TOTING(obj) ||
1218         (!HERE(BIRD) &&
1219          (game.closng ||
1220           !AT(FISSURE)))) {
1221         speak(((!TOTING(obj)) && (obj != ROD ||
1222                                   !TOTING(ROD2))) ?
1223               arbitrary_messages[ARENT_CARRYING] :
1224               actions[verb].message);
1225         return GO_CLEAROBJ;
1226     }
1227
1228     if (game.prop[BIRD] == BIRD_UNCAGED && game.loc == game.place[STEPS] && game.prop[JADE] == STATE_NOTFOUND) {
1229         drop(JADE, game.loc);
1230         game.prop[JADE] = STATE_FOUND;
1231         --game.tally;
1232         rspeak(NECKLACE_FLY);
1233         return GO_CLEAROBJ;
1234     } else {
1235         if (game.closed) {
1236             rspeak((game.prop[BIRD] == BIRD_CAGED) ?
1237                    CAGE_FLY :
1238                    FREE_FLY);
1239             return GO_DWARFWAKE;
1240         }
1241         if (game.closng ||
1242             !AT(FISSURE)) {
1243             rspeak((game.prop[BIRD] == BIRD_CAGED) ?
1244                    CAGE_FLY :
1245                    FREE_FLY);
1246             return GO_CLEAROBJ;
1247         }
1248         if (HERE(BIRD))
1249             rspeak((game.prop[BIRD] == BIRD_CAGED) ?
1250                    CAGE_FLY :
1251                    FREE_FLY);
1252
1253         state_change(FISSURE,
1254                      game.prop[FISSURE] == BRIDGED ? UNBRIDGED : BRIDGED);
1255         return GO_CLEAROBJ;
1256     }
1257 }
1258
1259 int action(struct command_t *command)
1260 /*  Analyse a verb.  Remember what it was, go back for object if second word
1261  *  unless verb is "say", which snarfs arbitrary second word.
1262  */
1263 {
1264     if (command->part == unknown) {
1265         /*  Analyse an object word.  See if the thing is here, whether
1266          *  we've got a verb yet, and so on.  Object must be here
1267          *  unless verb is "find" or "invent(ory)" (and no new verb
1268          *  yet to be analysed).  Water and oil are also funny, since
1269          *  they are never actually dropped at any location, but might
1270          *  be here inside the bottle or urn or as a feature of the
1271          *  location. */
1272         if (HERE(command->obj))
1273             /* FALL THROUGH */;
1274         else if (command->obj == GRATE) {
1275             if (game.loc == LOC_START ||
1276                 game.loc == LOC_VALLEY ||
1277                 game.loc == LOC_SLIT) {
1278                 command->obj = DPRSSN;
1279             }
1280             if (game.loc == LOC_COBBLE ||
1281                 game.loc == LOC_DEBRIS ||
1282                 game.loc == LOC_AWKWARD ||
1283                 game.loc == LOC_BIRD ||
1284                 game.loc == LOC_PITTOP) {
1285                 command->obj = ENTRNC;
1286             }
1287         } else if (command->obj == DWARF && atdwrf(game.loc) > 0)
1288             /* FALL THROUGH */;
1289         else if ((LIQUID() == command->obj && HERE(BOTTLE)) ||
1290                  command->obj == LIQLOC(game.loc))
1291             /* FALL THROUGH */;
1292         else if (command->obj == OIL && HERE(URN) && game.prop[URN] != URN_EMPTY) {
1293             command->obj = URN;
1294             /* FALL THROUGH */;
1295         } else if (command->obj == PLANT && AT(PLANT2) && game.prop[PLANT2] != PLANT_THIRSTY) {
1296             command->obj = PLANT2;
1297             /* FALL THROUGH */;
1298         } else if (command->obj == KNIFE && game.knfloc == game.loc) {
1299             game.knfloc = -1;
1300             rspeak(KNIVES_VANISH);
1301             return GO_CLEAROBJ;
1302         } else if (command->obj == ROD && HERE(ROD2)) {
1303             command->obj = ROD2;
1304             /* FALL THROUGH */;
1305         } else if ((command->verb == FIND ||
1306                     command->verb == INVENTORY) && command->wd2 <= 0)
1307             /* FALL THROUGH */;
1308         else {
1309             sspeak(NO_SEE, command->raw1);
1310             return GO_CLEAROBJ;
1311         }
1312
1313         if (command->wd2 > 0)
1314             return GO_WORD2;
1315         if (command->verb != 0)
1316             command->part = transitive;
1317     }
1318
1319     switch (command->part) {
1320     case intransitive:
1321         if (command->wd2 > 0 && command->verb != SAY)
1322             return GO_WORD2;
1323         if (command->verb == SAY)
1324             command->obj = command->wd2;
1325         if (command->obj == NO_OBJECT ||
1326             command->obj == INTRANSITIVE) {
1327             /*  Analyse an intransitive verb (ie, no object given yet). */
1328             switch (command->verb) {
1329             case CARRY:
1330                 return vcarry(command->verb, INTRANSITIVE);
1331             case  DROP:
1332                 return GO_UNKNOWN;
1333             case  SAY:
1334                 return GO_UNKNOWN;
1335             case  UNLOCK:
1336                 return lock(command->verb, INTRANSITIVE);
1337             case  NOTHING: {
1338                 rspeak(OK_MAN);
1339                 return (GO_CLEAROBJ);
1340             }
1341             case  LOCK:
1342                 return lock(command->verb, INTRANSITIVE);
1343             case  LIGHT:
1344                 return light(command->verb, INTRANSITIVE);
1345             case  EXTINGUISH:
1346                 return extinguish(command->verb, INTRANSITIVE);
1347             case  WAVE:
1348                 return GO_UNKNOWN;
1349             case  TAME:
1350                 return GO_UNKNOWN;
1351             case GO: {
1352                 speak(actions[command->verb].message);
1353                 return GO_CLEAROBJ;
1354             }
1355             case ATTACK:
1356                 command->obj = INTRANSITIVE;
1357                 return attack(command);
1358             case POUR:
1359                 return pour(command->verb, INTRANSITIVE);
1360             case EAT:
1361                 return eat(command->verb, INTRANSITIVE);
1362             case DRINK:
1363                 return drink(command->verb, INTRANSITIVE);
1364             case RUB:
1365                 return GO_UNKNOWN;
1366             case THROW:
1367                 return GO_UNKNOWN;
1368             case QUIT:
1369                 return quit();
1370             case FIND:
1371                 return GO_UNKNOWN;
1372             case INVENTORY:
1373                 return inven();
1374             case FEED:
1375                 return GO_UNKNOWN;
1376             case FILL:
1377                 return fill(command->verb, INTRANSITIVE);
1378             case BLAST:
1379                 blast();
1380                 return GO_CLEAROBJ;
1381             case SCORE:
1382                 score(scoregame);
1383                 return GO_CLEAROBJ;
1384             case FEE:
1385             case FIE:
1386             case FOE:
1387             case FOO:
1388             case FUM:
1389                 return bigwords(command->id1);
1390             case BRIEF:
1391                 return brief();
1392             case READ:
1393                 command->obj = INTRANSITIVE;
1394                 return read(*command);
1395             case BREAK:
1396                 return GO_UNKNOWN;
1397             case WAKE:
1398                 return GO_UNKNOWN;
1399             case SAVE:
1400                 return suspend();
1401             case RESUME:
1402                 return resume();
1403             case FLY:
1404                 return fly(command->verb, INTRANSITIVE);
1405             case LISTEN:
1406                 return listen();
1407             case PART:
1408                 return reservoir();
1409             default:
1410                 BUG(INTRANSITIVE_ACTION_VERB_EXCEEDS_GOTO_LIST); // LCOV_EXCL_LINE
1411             }
1412         }
1413     /* FALLTHRU */
1414     case transitive:
1415         /*  Analyse a transitive verb. */
1416         switch (command->verb) {
1417         case  CARRY:
1418             return vcarry(command->verb, command->obj);
1419         case  DROP:
1420             return discard(command->verb, command->obj);
1421         case  SAY:
1422             return say(command);
1423         case  UNLOCK:
1424             return lock(command->verb, command->obj);
1425         case  NOTHING: {
1426             rspeak(OK_MAN);
1427             return (GO_CLEAROBJ);
1428         }
1429         case  LOCK:
1430             return lock(command->verb, command->obj);
1431         case LIGHT:
1432             return light(command->verb, command->obj);
1433         case EXTINGUISH:
1434             return extinguish(command->verb, command->obj);
1435         case WAVE:
1436             return wave(command->verb, command->obj);
1437         case TAME: {
1438             speak(actions[command->verb].message);
1439             return GO_CLEAROBJ;
1440         }
1441         case GO: {
1442             speak(actions[command->verb].message);
1443             return GO_CLEAROBJ;
1444         }
1445         case ATTACK:
1446             return attack(command);
1447         case POUR:
1448             return pour(command->verb, command->obj);
1449         case EAT:
1450             return eat(command->verb, command->obj);
1451         case DRINK:
1452             return drink(command->verb, command->obj);
1453         case RUB:
1454             return rub(command->verb, command->obj);
1455         case THROW:
1456             return throw (command);
1457         case QUIT: {
1458             speak(actions[command->verb].message);
1459             return GO_CLEAROBJ;
1460         }
1461         case FIND:
1462             return find(command->verb, command->obj);
1463         case INVENTORY:
1464             return find(command->verb, command->obj);
1465         case FEED:
1466             return feed(command->verb, command->obj);
1467         case FILL:
1468             return fill(command->verb, command->obj);
1469         case BLAST:
1470             blast();
1471             return GO_CLEAROBJ;
1472         case SCORE: {
1473             speak(actions[command->verb].message);
1474             return GO_CLEAROBJ;
1475         }
1476         case FEE:
1477         case FIE:
1478         case FOE:
1479         case FOO:
1480         case FUM: {
1481             speak(actions[command->verb].message);
1482             return GO_CLEAROBJ;
1483         }
1484         case BRIEF: {
1485             speak(actions[command->verb].message);
1486             return GO_CLEAROBJ;
1487         }
1488         case READ:
1489             return read(*command);
1490         case BREAK:
1491             return vbreak(command->verb, command->obj);
1492         case WAKE:
1493             return wake(command->verb, command->obj);
1494         case SAVE: {
1495             speak(actions[command->verb].message);
1496             return GO_CLEAROBJ;
1497         }
1498         case RESUME: {
1499             speak(actions[command->verb].message);
1500             return GO_CLEAROBJ;
1501         }
1502         case FLY:
1503             return fly(command->verb, command->obj);
1504         case LISTEN: {
1505             speak(actions[command->verb].message);
1506             return GO_CLEAROBJ;
1507         }
1508         case PART:
1509             return reservoir();
1510         default:
1511             BUG(TRANSITIVE_ACTION_VERB_EXCEEDS_GOTO_LIST); // LCOV_EXCL_LINE
1512         }
1513     case unknown:
1514         /* Unknown verb, couldn't deduce object - might need hint */
1515         sspeak(WHAT_DO, command->raw1);
1516         return GO_CHECKHINT;
1517     default:
1518         BUG(SPEECHPART_NOT_TRANSITIVE_OR_INTRANSITIVE_OR_UNKNOWN); // LCOV_EXCL_LINE
1519     }
1520 }