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