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
 632     case DRAGON:
 633         if (game.prop[DRAGON] != DRAGON_BARS)
 634             rspeak(RIDICULOUS_ATTEMPT);
 635         else
 636             rspeak(NOTHING_EDIBLE);
 637         break;
 638     case SNAKE:
 639         if (!game.closed && HERE(BIRD)) {
 640             DESTROY(BIRD);
 641             rspeak(BIRD_DEVOURED);
 642         } else
 643             rspeak(NOTHING_EDIBLE);
 644         break;
 645     case TROLL:
 646         rspeak(TROLL_VICES);
 647         break;
 648     case DWARF:
 649         if (HERE(FOOD)) {
 650             game.dflag += 2;
 651             rspeak(REALLY_MAD);
 652         } else
 653             rspeak(actions[verb].message);
 654         break;
 655     case BEAR:
 656         if (game.prop[BEAR] == BEAR_DEAD) {
 657             rspeak(RIDICULOUS_ATTEMPT);
 658             break;
 659         }
 660         if (game.prop[BEAR] == UNTAMED_BEAR) {
 661             if (HERE(FOOD)) {
 662                 DESTROY(FOOD);
 663                 game.fixed[AXE] = IS_FREE;
 664                 game.prop[AXE] = AXE_HERE;
 665                 state_change(BEAR, SITTING_BEAR);
 666             } else
 667                 rspeak(NOTHING_EDIBLE);
 668         }
 669         break;
 670     case OGRE:
 671         if (HERE(FOOD))
 672             rspeak(OGRE_FULL);
 673         else
 674             rspeak(actions[verb].message);
 675         break;
 676     default:
 677         rspeak(AM_GAME);
 678     }
 679     return GO_CLEAROBJ;
 680 }
 681
 682 int fill(token_t verb, token_t obj)
 683 /*  Fill.  Bottle or urn must be empty, and liquid available.  (Vase
 684  *  is nasty.) */
 685 {
 686     if (obj == VASE) {
 687         if (LIQLOC(game.loc) == NO_OBJECT) {
 688             rspeak(FILL_INVALID);
 689             return GO_CLEAROBJ;
 690         }
 691         if (!TOTING(VASE)) {
 692             rspeak(ARENT_CARRYING);
 693             return GO_CLEAROBJ;
 694         }
 695         rspeak(SHATTER_VASE);
 696         game.prop[VASE] = VASE_BROKEN;
 697         game.fixed[VASE] = IS_FIXED;
 698         return (discard(verb, VASE, true));
 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 != NO_OBJECT && obj != BOTTLE) {
 730         rspeak(actions[verb].message);
 731         return GO_CLEAROBJ;
 732     }
 733     if (obj == NO_OBJECT && !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, token_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     rspeak(actions[verb].message);
 780     return GO_CLEAROBJ;
 781 }
 782
 783 static int fly(token_t verb, token_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         rspeak(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     /* FIXME: Arithmetic on location values */
 809     game.newloc = game.place[RUG] + game.fixed[RUG] - game.loc;
 810
 811     if (game.prop[SAPPH] == STATE_NOTFOUND) {
 812         rspeak(RUG_GOES);
 813     } else {
 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 (int 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, token_t obj)
 841 /*  Light.  Applicable only to lamp and urn. */
 842 {
 843     if (obj == INTRANSITIVE) {
 844         if (HERE(LAMP) && game.prop[LAMP] == LAMP_DARK && game.limit >= 0)
 845             obj = LAMP;
 846         if (HERE(URN) && game.prop[URN] == URN_DARK)
 847             obj =  URN;
 848         if (obj == INTRANSITIVE ||
 849             (HERE(LAMP) && game.prop[LAMP] == LAMP_DARK && game.limit >= 0 &&
 850              HERE(URN) && game.prop[URN] == URN_DARK))
 851             return GO_UNKNOWN;
 852     }
 853
 854     if (obj == URN) {
 855         state_change(URN, game.prop[URN] == URN_EMPTY ?
 856                      URN_EMPTY :
 857                      URN_LIT);
 858         return GO_CLEAROBJ;
 859     } else {
 860         if (obj != LAMP) {
 861             rspeak(actions[verb].message);
 862             return GO_CLEAROBJ;
 863         }
 864         if (game.limit < 0) {
 865             rspeak(LAMP_OUT);
 866             return GO_CLEAROBJ;
 867         }
 868         state_change(LAMP, LAMP_BRIGHT);
 869         if (game.wzdark)
 870             return GO_TOP;
 871         else
 872             return GO_CLEAROBJ;
 873     }
 874 }
 875
 876 static int listen(void)
 877 /*  Listen.  Intransitive only.  Print stuff based on object sound proprties. */
 878 {
 879     long sound = locations[game.loc].sound;
 880     if (sound != SILENT) {
 881         rspeak(sound);
 882         if (!locations[game.loc].loud)
 883             rspeak(NO_MESSAGE);
 884         return GO_CLEAROBJ;
 885     }
 886     for (int i = 1; i <= NOBJECTS; i++) {
 887         if (!HERE(i) ||
 888             objects[i].sounds[0] == NULL ||
 889             game.prop[i] < 0)
 890             continue;
 891         int mi =  game.prop[i];
 892         if (i == BIRD)
 893             mi += 3 * game.blooded;
 894         long packed_zzword = token_to_packed(game.zzword);
 895         pspeak(i, hear, mi, true, packed_zzword);
 896         rspeak(NO_MESSAGE);
 897         if (i == BIRD && mi == BIRD_ENDSTATE)
 898             DESTROY(BIRD);
 899         return GO_CLEAROBJ;
 900     }
 901     rspeak(ALL_SILENT);
 902     return GO_CLEAROBJ;
 903 }
 904
 905 static int lock(token_t verb, token_t obj)
 906 /* Lock, unlock, no object given.  Assume various things if present. */
 907 {
 908     if (obj == INTRANSITIVE) {
 909         if (HERE(CLAM))
 910             obj = CLAM;
 911         if (HERE(OYSTER))
 912             obj = OYSTER;
 913         if (AT(DOOR))
 914             obj = DOOR;
 915         if (AT(GRATE))
 916             obj = GRATE;
 917         if (HERE(CHAIN))
 918             obj = CHAIN;
 919         if (obj == INTRANSITIVE) {
 920             rspeak(NOTHING_LOCKED);
 921             return GO_CLEAROBJ;
 922         }
 923     }
 924
 925     /*  Lock, unlock object.  Special stuff for opening clam/oyster
 926      *  and for chain. */
 927     if (obj == GRATE ||
 928         obj == CHAIN) {
 929         if (HERE(KEYS)) {
 930             if (obj == CHAIN)
 931                 return chain(verb);
 932             if (game.closng) {
 933                 rspeak(EXIT_CLOSED);
 934                 if (!game.panic)
 935                     game.clock2 = PANICTIME;
 936                 game.panic = true;
 937                 return GO_CLEAROBJ ;
 938             } else {
 939                 state_change(GRATE, (verb == LOCK) ?
 940                              GRATE_CLOSED :
 941                              GRATE_OPEN);
 942                 return GO_CLEAROBJ;
 943             }
 944         }
 945         rspeak(NO_KEYS);
 946         return GO_CLEAROBJ;
 947     }
 948
 949     switch (obj) {
 950     case CLAM:
 951         if (verb == LOCK)
 952             rspeak(HUH_MAN);
 953         else if (!TOTING(TRIDENT))
 954             rspeak(OYSTER_OPENER);
 955         else {
 956             DESTROY(CLAM);
 957             drop(OYSTER, game.loc);
 958             drop(PEARL, LOC_CULDESAC);
 959             rspeak(PEARL_FALLS);
 960         }
 961         return GO_CLEAROBJ;
 962     case OYSTER:
 963         if (verb == LOCK)
 964             rspeak(HUH_MAN);
 965         else
 966             rspeak(OYSTER_OPENER);
 967
 968         return GO_CLEAROBJ;
 969     case DOOR:
 970         rspeak((game.prop[DOOR] == DOOR_UNRUSTED) ? OK_MAN : RUSTY_DOOR);
 971         break;
 972     case CAGE:
 973         rspeak( NO_LOCK);
 974         break;
 975     case KEYS:
 976         rspeak(CANNOT_UNLOCK);
 977         break;
 978     default:
 979         rspeak(actions[verb].message);
 980     }
 981
 982     return GO_CLEAROBJ;
 983 }
 984
 985 static int pour(token_t verb, token_t obj)
 986 /*  Pour.  If no object, or object is bottle, assume contents of bottle.
 987  *  special tests for pouring water or oil on plant or rusty door. */
 988 {
 989     if (obj == BOTTLE ||
 990         obj == NO_OBJECT)
 991         obj = LIQUID();
 992     if (obj == NO_OBJECT)
 993         return GO_UNKNOWN;
 994     if (!TOTING(obj)) {
 995         rspeak(actions[verb].message);
 996         return GO_CLEAROBJ;
 997     }
 998
 999     if (obj != OIL && obj != WATER) {
1000         rspeak(CANT_POUR);
1001         return GO_CLEAROBJ;
1002     }
1003     if (HERE(URN) && game.prop[URN] == URN_EMPTY)
1004         return fill(verb, URN);
1005     game.prop[BOTTLE] = EMPTY_BOTTLE;
1006     game.place[obj] = LOC_NOWHERE;
1007     if (!(AT(PLANT) ||
1008           AT(DOOR))) {
1009         rspeak(GROUND_WET);
1010         return GO_CLEAROBJ;
1011     }
1012     if (!AT(DOOR)) {
1013         if (obj == WATER) {
1014             /* cycle through the three plant states */
1015             state_change(PLANT, MOD(game.prop[PLANT] + 1, 3));
1016             game.prop[PLANT2] = game.prop[PLANT];
1017             return GO_MOVE;
1018         } else {
1019             rspeak(SHAKING_LEAVES);
1020             return GO_CLEAROBJ;
1021         }
1022     } else {
1023         state_change(DOOR, (obj == OIL) ?
1024                      DOOR_UNRUSTED :
1025                      DOOR_RUSTED);
1026         return GO_CLEAROBJ;
1027     }
1028 }
1029
1030 static int quit(void)
1031 /*  Quit.  Intransitive only.  Verify intent and exit if that's what he wants. */
1032 {
1033     if (yes(arbitrary_messages[REALLY_QUIT], arbitrary_messages[OK_MAN], arbitrary_messages[OK_MAN]))
1034         terminate(quitgame);
1035     return GO_CLEAROBJ;
1036 }
1037
1038 static int read(struct command_t command)
1039 /*  Read.  Print stuff based on objtxt.  Oyster (?) is special case. */
1040 {
1041     if (command.obj == INTRANSITIVE) {
1042         command.obj = 0;
1043         for (int i = 1; i <= NOBJECTS; i++) {
1044             if (HERE(i) && objects[i].texts[0] != NULL && game.prop[i] >= 0)
1045                 command.obj = command.obj * NOBJECTS + i;
1046         }
1047         if (command.obj > NOBJECTS ||
1048             command.obj == 0 ||
1049             DARK(game.loc))
1050             return GO_UNKNOWN;
1051     }
1052
1053     if (DARK(game.loc)) {
1054         sspeak(NO_SEE, command.raw1);
1055     } else if (command.obj == OYSTER && !game.clshnt && game.closed) {
1056         game.clshnt = yes(arbitrary_messages[CLUE_QUERY], arbitrary_messages[WAYOUT_CLUE], arbitrary_messages[OK_MAN]);
1057     } else if (objects[command.obj].texts[0] == NULL ||
1058                game.prop[command.obj] < 0) {
1059         rspeak(actions[command.verb].message);
1060     } else
1061         pspeak(command.obj, study, game.prop[command.obj], true);
1062     return GO_CLEAROBJ;
1063 }
1064
1065 static int reservoir(void)
1066 /*  Z'ZZZ (word gets recomputed at startup; different each game). */
1067 {
1068     /* FIXME: Arithmetic on state numbers */
1069     if (!AT(RESER) && game.loc != game.fixed[RESER] - 1) {
1070         rspeak(NOTHING_HAPPENS);
1071         return GO_CLEAROBJ;
1072     } else {
1073         state_change(RESER,
1074                      game.prop[RESER] == WATERS_PARTED ? WATERS_UNPARTED : WATERS_PARTED);
1075         if (AT(RESER))
1076             return GO_CLEAROBJ;
1077         else {
1078             game.oldlc2 = game.loc;
1079             game.newloc = LOC_NOWHERE;
1080             rspeak(NOT_BRIGHT);
1081             return GO_TERMINATE;
1082         }
1083     }
1084 }
1085
1086 static int rub(token_t verb, token_t obj)
1087 /* Rub.  Yields various snide remarks except for lit urn. */
1088 {
1089     if (obj == URN && game.prop[URN] == URN_LIT) {
1090         DESTROY(URN);
1091         drop(AMBER, game.loc);
1092         game.prop[AMBER] = AMBER_IN_ROCK;
1093         --game.tally;
1094         drop(CAVITY, game.loc);
1095         rspeak(URN_GENIES);
1096     } else if (obj != LAMP) {
1097         rspeak(PECULIAR_NOTHING);
1098     } else {
1099         rspeak(actions[verb].message);
1100     }
1101     return GO_CLEAROBJ;
1102 }
1103
1104 static int say(struct command_t *command)
1105 /* Say.  Echo WD2 (or WD1 if no WD2 (SAY WHAT?, etc.).)  Magic words override. */
1106 {
1107     if (command->wd2 > 0) {
1108         command->wd1 = command->wd2;
1109         strcpy(command->raw1, command->raw2);
1110     }
1111     char word1[TOKLEN + 1];
1112     packed_to_token(command->wd1, word1);
1113     int wd = (int) get_vocab_id(word1);
1114     if (wd == MOTION_WORD(XYZZY) ||
1115         wd == MOTION_WORD(PLUGH) ||
1116         wd == MOTION_WORD(PLOVER) ||
1117         wd == ACTION_WORD(GIANTWORDS) ||
1118         wd == ACTION_WORD(PART)) {
1119         /* FIXME: scribbles on the interpreter's command block */
1120         wordclear(&command->wd2);
1121         return GO_LOOKUP;
1122     }
1123     sspeak(OKEY_DOKEY, command->raw1);
1124     return GO_CLEAROBJ;
1125 }
1126
1127 static int throw_support(long spk)
1128 {
1129     rspeak(spk);
1130     drop(AXE, game.loc);
1131     return GO_MOVE;
1132 }
1133
1134 static int throw (struct command_t *command)
1135 /*  Throw.  Same as discard unless axe.  Then same as attack except
1136  *  ignore bird, and if dwarf is present then one might be killed.
1137  *  (Only way to do so!)  Axe also special for dragon, bear, and
1138  *  troll.  Treasures special for troll. */
1139 {
1140     if (!TOTING(command->obj)) {
1141         rspeak(actions[command->verb].message);
1142         return GO_CLEAROBJ;
1143     }
1144     if (objects[command->obj].is_treasure && AT(TROLL)) {
1145         /*  Snarf a treasure for the troll. */
1146         drop(command->obj, LOC_NOWHERE);
1147         move(TROLL, LOC_NOWHERE);
1148         move(TROLL + NOBJECTS, LOC_NOWHERE);
1149         drop(TROLL2, objects[TROLL].plac);
1150         drop(TROLL2 + NOBJECTS, objects[TROLL].fixd);
1151         juggle(CHASM);
1152         rspeak(TROLL_SATISFIED);
1153         return GO_CLEAROBJ;
1154     }
1155     if (command->obj == FOOD && HERE(BEAR)) {
1156         /* But throwing food is another story. */
1157         command->obj = BEAR;
1158         return (feed(command->verb, command->obj));
1159     }
1160     if (command->obj != AXE)
1161         return (discard(command->verb, command->obj, false));
1162     else {
1163         if (atdwrf(game.loc) <= 0) {
1164             if (AT(DRAGON) && game.prop[DRAGON] == DRAGON_BARS)
1165                 return throw_support(DRAGON_SCALES);
1166             if (AT(TROLL))
1167                 return throw_support(TROLL_RETURNS);
1168             else if (AT(OGRE))
1169                 return throw_support(OGRE_DODGE);
1170             else if (HERE(BEAR) && game.prop[BEAR] == UNTAMED_BEAR) {
1171                 /* This'll teach him to throw the axe at the bear! */
1172                 drop(AXE, game.loc);
1173                 game.fixed[AXE] = IS_FIXED;
1174                 juggle(BEAR);
1175                 state_change(AXE, AXE_LOST);
1176                 return GO_CLEAROBJ;
1177             }
1178             command->obj = NO_OBJECT;
1179             return (attack(command));
1180         }
1181
1182         if (randrange(NDWARVES + 1) < game.dflag) {
1183             return throw_support(DWARF_DODGES);
1184         } else {
1185             long i = atdwrf(game.loc);
1186             game.dseen[i] = false;
1187             game.dloc[i] = LOC_NOWHERE;
1188             return throw_support((++game.dkill == 1) ?
1189                                  DWARF_SMOKE :
1190                                  KILLED_DWARF);
1191         }
1192     }
1193 }
1194
1195 static int wake(token_t verb, token_t obj)
1196 /* Wake.  Only use is to disturb the dwarves. */
1197 {
1198     if (obj != DWARF ||
1199         !game.closed) {
1200         rspeak(actions[verb].message);
1201         return GO_CLEAROBJ;
1202     } else {
1203         rspeak(PROD_DWARF);
1204         return GO_DWARFWAKE;
1205     }
1206 }
1207
1208 static int wave(token_t verb, token_t obj)
1209 /* Wave.  No effect unless waving rod at fissure or at bird. */
1210 {
1211     if (obj != ROD ||
1212         !TOTING(obj) ||
1213         (!HERE(BIRD) &&
1214          (game.closng ||
1215           !AT(FISSURE)))) {
1216         rspeak(((!TOTING(obj)) && (obj != ROD ||
1217                                    !TOTING(ROD2))) ?
1218                ARENT_CARRYING :
1219                actions[verb].message);
1220         return GO_CLEAROBJ;
1221     }
1222
1223     if (game.prop[BIRD] == BIRD_UNCAGED && game.loc == game.place[STEPS] && game.prop[JADE] < 0) {
1224         drop(JADE, game.loc);
1225         game.prop[JADE] = STATE_FOUND;
1226         --game.tally;
1227         rspeak(NECKLACE_FLY);
1228         return GO_CLEAROBJ;
1229     } else {
1230         if (game.closed) {
1231             rspeak((game.prop[BIRD] == BIRD_CAGED) ?
1232                    CAGE_FLY :
1233                    FREE_FLY);
1234             return GO_DWARFWAKE;
1235         }
1236         if (game.closng ||
1237             !AT(FISSURE)) {
1238             rspeak((game.prop[BIRD] == BIRD_CAGED) ?
1239                    CAGE_FLY :
1240                    FREE_FLY);
1241             return GO_CLEAROBJ;
1242         }
1243         if (HERE(BIRD))
1244             rspeak((game.prop[BIRD] == BIRD_CAGED) ?
1245                    CAGE_FLY :
1246                    FREE_FLY);
1247
1248         state_change(FISSURE,
1249                      game.prop[FISSURE] == BRIDGED ? UNBRIDGED : BRIDGED);
1250         return GO_CLEAROBJ;
1251     }
1252 }
1253
1254 int action(struct command_t *command)
1255 /*  Analyse a verb.  Remember what it was, go back for object if second word
1256  *  unless verb is "say", which snarfs arbitrary second word.
1257  */
1258 {
1259     if (command->part == unknown) {
1260         /*  Analyse an object word.  See if the thing is here, whether
1261          *  we've got a verb yet, and so on.  Object must be here
1262          *  unless verb is "find" or "invent(ory)" (and no new verb
1263          *  yet to be analysed).  Water and oil are also funny, since
1264          *  they are never actually dropped at any location, but might
1265          *  be here inside the bottle or urn or as a feature of the
1266          *  location. */
1267         if (HERE(command->obj))
1268             /* FALL THROUGH */;
1269         else if (command->obj == GRATE) {
1270             if (game.loc == LOC_START ||
1271                 game.loc == LOC_VALLEY ||
1272                 game.loc == LOC_SLIT) {
1273                 command->obj = DPRSSN;
1274             }
1275             if (game.loc == LOC_COBBLE ||
1276                 game.loc == LOC_DEBRIS ||
1277                 game.loc == LOC_AWKWARD ||
1278                 game.loc == LOC_BIRD ||
1279                 game.loc == LOC_PITTOP) {
1280                 command->obj = ENTRNC;
1281             }
1282         } else if (command->obj == DWARF && atdwrf(game.loc) > 0)
1283             /* FALL THROUGH */;
1284         else if ((LIQUID() == command->obj && HERE(BOTTLE)) ||
1285                  command->obj == LIQLOC(game.loc))
1286             /* FALL THROUGH */;
1287         else if (command->obj == OIL && HERE(URN) && game.prop[URN] != 0) {
1288             command->obj = URN;
1289             /* FALL THROUGH */;
1290         } else if (command->obj == PLANT && AT(PLANT2) && game.prop[PLANT2] != 0) {
1291             command->obj = PLANT2;
1292             /* FALL THROUGH */;
1293         } else if (command->obj == KNIFE && game.knfloc == game.loc) {
1294             game.knfloc = -1;
1295             rspeak(KNIVES_VANISH);
1296             return GO_CLEAROBJ;
1297         } else if (command->obj == ROD && HERE(ROD2)) {
1298             command->obj = ROD2;
1299             /* FALL THROUGH */;
1300         } else if ((command->verb == FIND ||
1301                     command->verb == INVENTORY) && command->wd2 <= 0)
1302             /* FALL THROUGH */;
1303         else {
1304             sspeak(NO_SEE, command->raw1);
1305             return GO_CLEAROBJ;
1306         }
1307
1308         if (command->wd2 > 0)
1309             return GO_WORD2;
1310         if (command->verb != 0)
1311             command->part = transitive;
1312     }
1313
1314     switch (command->part) {
1315     case intransitive:
1316         if (command->wd2 > 0 && command->verb != SAY)
1317             return GO_WORD2;
1318         if (command->verb == SAY)
1319             command->obj = command->wd2;
1320         if (command->obj == NO_OBJECT ||
1321             command->obj == INTRANSITIVE) {
1322             /*  Analyse an intransitive verb (ie, no object given yet). */
1323             switch (command->verb) {
1324             case CARRY:
1325                 return vcarry(command->verb, INTRANSITIVE);
1326             case  DROP:
1327                 return GO_UNKNOWN;
1328             case  SAY:
1329                 return GO_UNKNOWN;
1330             case  UNLOCK:
1331                 return lock(command->verb, INTRANSITIVE);
1332             case  NOTHING: {
1333                 rspeak(OK_MAN);
1334                 return (GO_CLEAROBJ);
1335             }
1336             case  LOCK:
1337                 return lock(command->verb, INTRANSITIVE);
1338             case  LIGHT:
1339                 return light(command->verb, INTRANSITIVE);
1340             case  EXTINGUISH:
1341                 return extinguish(command->verb, INTRANSITIVE);
1342             case  WAVE:
1343                 return GO_UNKNOWN;
1344             case  TAME:
1345                 return GO_UNKNOWN;
1346             case GO: {
1347                 rspeak(actions[command->verb].message);
1348                 return GO_CLEAROBJ;
1349             }
1350             case ATTACK:
1351                 return attack(command);
1352             case POUR:
1353                 return pour(command->verb, command->obj);
1354             case EAT:
1355                 return eat(command->verb, INTRANSITIVE);
1356             case DRINK:
1357                 return drink(command->verb, command->obj);
1358             case RUB:
1359                 return GO_UNKNOWN;
1360             case THROW:
1361                 return GO_UNKNOWN;
1362             case QUIT:
1363                 return quit();
1364             case FIND:
1365                 return GO_UNKNOWN;
1366             case INVENTORY:
1367                 return inven();
1368             case FEED:
1369                 return GO_UNKNOWN;
1370             case FILL:
1371                 return fill(command->verb, command->obj);
1372             case BLAST:
1373                 blast();
1374                 return GO_CLEAROBJ;
1375             case SCORE:
1376                 score(scoregame);
1377                 return GO_CLEAROBJ;
1378             case GIANTWORDS:
1379                 return bigwords(command->wd1);
1380             case BRIEF:
1381                 return brief();
1382             case READ:
1383                 command->obj = INTRANSITIVE;
1384                 return read(*command);
1385             case BREAK:
1386                 return GO_UNKNOWN;
1387             case WAKE:
1388                 return GO_UNKNOWN;
1389             case SAVE:
1390                 return suspend();
1391             case RESUME:
1392                 return resume();
1393             case FLY:
1394                 return fly(command->verb, INTRANSITIVE);
1395             case LISTEN:
1396                 return listen();
1397             case PART:
1398                 return reservoir();
1399             default:
1400                 BUG(INTRANSITIVE_ACTION_VERB_EXCEEDS_GOTO_LIST); // LCOV_EXCL_LINE
1401             }
1402         }
1403     /* FALLTHRU */
1404     case transitive:
1405         /*  Analyse a transitive verb. */
1406         switch (command->verb) {
1407         case  CARRY:
1408             return vcarry(command->verb, command->obj);
1409         case  DROP:
1410             return discard(command->verb, command->obj, false);
1411         case  SAY:
1412             return say(command);
1413         case  UNLOCK:
1414             return lock(command->verb, command->obj);
1415         case  NOTHING: {
1416             rspeak(OK_MAN);
1417             return (GO_CLEAROBJ);
1418         }
1419         case  LOCK:
1420             return lock(command->verb, command->obj);
1421         case LIGHT:
1422             return light(command->verb, command->obj);
1423         case EXTINGUISH:
1424             return extinguish(command->verb, command->obj);
1425         case WAVE:
1426             return wave(command->verb, command->obj);
1427         case TAME: {
1428             rspeak(actions[command->verb].message);
1429             return GO_CLEAROBJ;
1430         }
1431         case GO: {
1432             rspeak(actions[command->verb].message);
1433             return GO_CLEAROBJ;
1434         }
1435         case ATTACK:
1436             return attack(command);
1437         case POUR:
1438             return pour(command->verb, command->obj);
1439         case EAT:
1440             return eat(command->verb, command->obj);
1441         case DRINK:
1442             return drink(command->verb, command->obj);
1443         case RUB:
1444             return rub(command->verb, command->obj);
1445         case THROW:
1446             return throw (command);
1447         case QUIT: {
1448             rspeak(actions[command->verb].message);
1449             return GO_CLEAROBJ;
1450         }
1451         case FIND:
1452             return find(command->verb, command->obj);
1453         case INVENTORY:
1454             return find(command->verb, command->obj);
1455         case FEED:
1456             return feed(command->verb, command->obj);
1457         case FILL:
1458             return fill(command->verb, command->obj);
1459         case BLAST:
1460             blast();
1461             return GO_CLEAROBJ;
1462         case SCORE: {
1463             rspeak(actions[command->verb].message);
1464             return GO_CLEAROBJ;
1465         }
1466         case GIANTWORDS: {
1467             rspeak(actions[command->verb].message);
1468             return GO_CLEAROBJ;
1469         }
1470         case BRIEF: {
1471             rspeak(actions[command->verb].message);
1472             return GO_CLEAROBJ;
1473         }
1474         case READ:
1475             return read(*command);
1476         case BREAK:
1477             return vbreak(command->verb, command->obj);
1478         case WAKE:
1479             return wake(command->verb, command->obj);
1480         case SAVE: {
1481             rspeak(actions[command->verb].message);
1482             return GO_CLEAROBJ;
1483         }
1484         case RESUME: {
1485             rspeak(actions[command->verb].message);
1486             return GO_CLEAROBJ;
1487         }
1488         case FLY:
1489             return fly(command->verb, command->obj);
1490         case LISTEN: {
1491             rspeak(actions[command->verb].message);
1492             return GO_CLEAROBJ;
1493         }
1494         case PART:
1495             return reservoir();
1496         default:
1497             BUG(TRANSITIVE_ACTION_VERB_EXCEEDS_GOTO_LIST); // LCOV_EXCL_LINE
1498         }
1499     case unknown:
1500         /* Unknown verb, couldn't deduce object - might need hint */
1501         sspeak(WHAT_DO, command->raw1);
1502         return GO_CHECKHINT;
1503     default:
1504         BUG(SPEECHPART_NOT_TRANSITIVE_OR_INTRANSITIVE_OR_UNKNOWN); // LCOV_EXCL_LINE
1505     }
1506 }