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(long id)
 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   if ((game.foobar == WORD_EMPTY && id == ACTION_WORD(FEE)) ||
 187       (game.foobar == ACTION_WORD(FEE) && id == ACTION_WORD(FIE)) ||
 188       (game.foobar == ACTION_WORD(FIE) && id == ACTION_WORD(FOE)) ||
 189       (game.foobar == ACTION_WORD(FOE) && id == ACTION_WORD(FOO)) ||
 190       (game.foobar == ACTION_WORD(FOE) && id == ACTION_WORD(FUM)))
 191     {
 192       game.foobar = id;
 193       if ((id != ACTION_WORD(FOO)) && (id != ACTION_WORD(FUM))) {
 194         rspeak(OK_MAN);
 195         return GO_CLEAROBJ;
 196       }
 197       game.foobar = WORD_EMPTY;
 198       if (game.place[EGGS] == objects[EGGS].plac ||
 199           (TOTING(EGGS) && game.loc == objects[EGGS].plac)) {
 200         rspeak(NOTHING_HAPPENS);
 201         return GO_CLEAROBJ;
 202       } else {
 203         /*  Bring back troll if we steal the eggs back from him before
 204          *  crossing. */
 205         if (game.place[EGGS] == LOC_NOWHERE && game.place[TROLL] == LOC_NOWHERE && game.prop[TROLL] == TROLL_UNPAID)
 206           game.prop[TROLL] = TROLL_PAIDONCE;
 207         int k = EGGS_DONE;
 208         if (HERE(EGGS))
 209           k = EGGS_VANISHED;
 210         if (game.loc == objects[EGGS].plac)
 211           k = EGGS_HERE;
 212         move(EGGS, objects[EGGS].plac);
 213         pspeak(EGGS, look, k, true);
 214         return GO_CLEAROBJ;
 215       }
 216     }
 217   else
 218     {
 219       if (game.loc == LOC_GIANTROOM) {
 220         rspeak( START_OVER);
 221       } else {
 222         rspeak(NOTHING_HAPPENS);
 223       }
 224       game.foobar = WORD_EMPTY;
 225       return GO_CLEAROBJ;
 226     }
 227 }
 228
 229 static void blast(void)
 230 /*  Blast.  No effect unless you've got dynamite, which is a neat trick! */
 231 {
 232     if (game.prop[ROD2] < 0 ||
 233         !game.closed)
 234         rspeak(REQUIRES_DYNAMITE);
 235     else {
 236         game.bonus = VICTORY_MESSAGE;
 237         if (game.loc == LOC_NE)
 238             game.bonus = DEFEAT_MESSAGE;
 239         if (HERE(ROD2))
 240             game.bonus = SPLATTER_MESSAGE;
 241         rspeak(game.bonus);
 242         terminate(endgame);
 243     }
 244 }
 245
 246 static int vbreak(token_t verb, token_t obj)
 247 /*  Break.  Only works for mirror in repository and, of course, the vase. */
 248 {
 249     if (obj == MIRROR) {
 250         if (game.closed) {
 251             rspeak(BREAK_MIRROR);
 252             return GO_DWARFWAKE;
 253         } else {
 254             rspeak(TOO_FAR);
 255             return GO_CLEAROBJ;
 256         }
 257     }
 258     if (obj == VASE && game.prop[VASE] == VASE_WHOLE) {
 259         if (TOTING(VASE))
 260             drop(VASE, game.loc);
 261         state_change(VASE, VASE_BROKEN);
 262         game.fixed[VASE] = IS_FIXED;
 263         return GO_CLEAROBJ;
 264     }
 265     rspeak(actions[verb].message);
 266     return (GO_CLEAROBJ);
 267 }
 268
 269 static int brief(void)
 270 /*  Brief.  Intransitive only.  Suppress long descriptions after first time. */
 271 {
 272     game.abbnum = 10000;
 273     game.detail = 3;
 274     rspeak(BRIEF_CONFIRM);
 275     return GO_CLEAROBJ;
 276 }
 277
 278 static int vcarry(token_t verb, token_t obj)
 279 /*  Carry an object.  Special cases for bird and cage (if bird in cage, can't
 280  *  take one without the other).  Liquids also special, since they depend on
 281  *  status of bottle.  Also various side effects, etc. */
 282 {
 283     if (obj == INTRANSITIVE) {
 284         /*  Carry, no object given yet.  OK if only one object present. */
 285         if (game.atloc[game.loc] == 0 ||
 286             game.link[game.atloc[game.loc]] != 0 ||
 287             atdwrf(game.loc) > 0)
 288             return GO_UNKNOWN;
 289         obj = game.atloc[game.loc];
 290     }
 291
 292     if (TOTING(obj)) {
 293         rspeak(ALREADY_CARRYING);
 294         return GO_CLEAROBJ;
 295     }
 296
 297     if (obj == MESSAG) {
 298         rspeak(REMOVE_MESSAGE);
 299         DESTROY(MESSAG);
 300         return GO_CLEAROBJ;
 301     }
 302
 303     if (game.fixed[obj] != IS_FREE) {
 304         /* Next guard tests whether plant is tiny or stashed */
 305         if (obj == PLANT && game.prop[PLANT] <= PLANT_THIRSTY) {
 306             rspeak(DEEP_ROOTS);
 307             return GO_CLEAROBJ;
 308         }
 309         if (obj == BEAR && game.prop[BEAR] == SITTING_BEAR) {
 310             rspeak(BEAR_CHAINED);
 311             return GO_CLEAROBJ;
 312         }
 313         if (obj == CHAIN && game.prop[BEAR] != UNTAMED_BEAR) {
 314             rspeak(STILL_LOCKED);
 315             return GO_CLEAROBJ;
 316         }
 317         if (obj == URN) {
 318             rspeak(URN_NOBUDGE);
 319             return GO_CLEAROBJ;
 320         }
 321         if (obj == CAVITY) {
 322             rspeak(DOUGHNUT_HOLES);
 323             return GO_CLEAROBJ;
 324         }
 325         if (obj == BLOOD) {
 326             rspeak(FEW_DROPS);
 327             return GO_CLEAROBJ;
 328         }
 329         if (obj == RUG && game.prop[RUG] == RUG_HOVER) {
 330             rspeak(RUG_HOVERS);
 331             return GO_CLEAROBJ;
 332         }
 333         if (obj == SIGN) {
 334             rspeak(HAND_PASSTHROUGH);
 335             return GO_CLEAROBJ;
 336         }
 337         rspeak(YOU_JOKING);
 338         return GO_CLEAROBJ;
 339     }
 340
 341     if (obj == WATER ||
 342         obj == OIL) {
 343         if (!HERE(BOTTLE) ||
 344             LIQUID() != obj) {
 345             if (TOTING(BOTTLE)) {
 346                 if (game.prop[BOTTLE] == EMPTY_BOTTLE) {
 347                     return (fill(verb, BOTTLE));
 348                 } else if (game.prop[BOTTLE] != EMPTY_BOTTLE)
 349                     rspeak(BOTTLE_FULL);
 350                 return GO_CLEAROBJ;
 351             }
 352             rspeak(NO_CONTAINER);
 353             return GO_CLEAROBJ;
 354         }
 355         obj = BOTTLE;
 356     }
 357
 358     if (game.holdng >= INVLIMIT) {
 359         rspeak(CARRY_LIMIT);
 360         return GO_CLEAROBJ;
 361
 362     }
 363
 364     if (obj == BIRD && game.prop[BIRD] != BIRD_CAGED && STASHED(BIRD) != BIRD_CAGED) {
 365         if (game.prop[BIRD] == BIRD_FOREST_UNCAGED) {
 366             DESTROY(BIRD);
 367             rspeak(BIRD_CRAP);
 368             return GO_CLEAROBJ;
 369         }
 370         if (!TOTING(CAGE)) {
 371             rspeak(CANNOT_CARRY);
 372             return GO_CLEAROBJ;
 373         }
 374         if (TOTING(ROD)) {
 375             rspeak(BIRD_EVADES);
 376             return GO_CLEAROBJ;
 377         }
 378         game.prop[BIRD] = BIRD_CAGED;
 379     }
 380     if ((obj == BIRD ||
 381          obj == CAGE) &&
 382         (game.prop[BIRD] == BIRD_CAGED || STASHED(BIRD) == BIRD_CAGED))
 383         /* expression maps BIRD to CAGE and CAGE to BIRD */
 384         carry(BIRD + CAGE - obj, game.loc);
 385     carry(obj, game.loc);
 386     if (obj == BOTTLE && LIQUID() != NO_OBJECT)
 387         game.place[LIQUID()] = CARRIED;
 388     if (GSTONE(obj) && game.prop[obj] != STATE_FOUND) {
 389         game.prop[obj] = STATE_FOUND;
 390         game.prop[CAVITY] = CAVITY_EMPTY;
 391     }
 392     rspeak(OK_MAN);
 393     return GO_CLEAROBJ;
 394 }
 395
 396 static int chain(token_t verb)
 397 /* Do something to the bear's chain */
 398 {
 399     if (verb != LOCK) {
 400         if (game.prop[BEAR] == UNTAMED_BEAR) {
 401             rspeak(BEAR_BLOCKS);
 402             return GO_CLEAROBJ;
 403         }
 404         if (game.prop[CHAIN] == CHAIN_HEAP) {
 405             rspeak(ALREADY_UNLOCKED);
 406             return GO_CLEAROBJ;
 407         }
 408         game.prop[CHAIN] = CHAIN_HEAP;
 409         game.fixed[CHAIN] = IS_FREE;
 410         if (game.prop[BEAR] != BEAR_DEAD)
 411             game.prop[BEAR] = CONTENTED_BEAR;
 412
 413         switch (game.prop[BEAR]) {
 414         case BEAR_DEAD:
 415             game.fixed[BEAR] = IS_FIXED;
 416             break;
 417         default:
 418             game.fixed[BEAR] = IS_FREE;
 419         }
 420         rspeak(CHAIN_UNLOCKED);
 421         return GO_CLEAROBJ;
 422     }
 423
 424     if (game.prop[CHAIN] != CHAIN_HEAP) {
 425         rspeak(ALREADY_LOCKED);
 426         return GO_CLEAROBJ;
 427     }
 428     if (game.loc != objects[CHAIN].plac) {
 429         rspeak(NO_LOCKSITE);
 430         return GO_CLEAROBJ;
 431     }
 432
 433     game.prop[CHAIN] = CHAIN_FIXED;
 434
 435     if (TOTING(CHAIN))
 436         drop(CHAIN, game.loc);
 437     game.fixed[CHAIN] = IS_FIXED;
 438
 439     rspeak(CHAIN_LOCKED);
 440     return GO_CLEAROBJ;
 441 }
 442
 443 static int discard(token_t verb, token_t obj, bool just_do_it)
 444 /*  Discard object.  "Throw" also comes here for most objects.  Special cases for
 445  *  bird (might attack snake or dragon) and cage (might contain bird) and vase.
 446  *  Drop coins at vending machine for extra batteries. */
 447 {
 448     if (!just_do_it) {
 449         if (TOTING(ROD2) && obj == ROD && !TOTING(ROD))
 450             obj = ROD2;
 451         if (!TOTING(obj)) {
 452             rspeak(actions[verb].message);
 453             return GO_CLEAROBJ;
 454         }
 455         if (obj == BIRD && HERE(SNAKE)) {
 456             rspeak(BIRD_ATTACKS);
 457             if (game.closed)
 458                 return GO_DWARFWAKE;
 459             DESTROY(SNAKE);
 460             /* Set game.prop for use by travel options */
 461             game.prop[SNAKE] = SNAKE_CHASED;
 462
 463         } else if ((GSTONE(obj) && AT(CAVITY) && game.prop[CAVITY] != CAVITY_FULL)) {
 464             rspeak(GEM_FITS);
 465             game.prop[obj] = STATE_IN_CAVITY;
 466             game.prop[CAVITY] = CAVITY_FULL;
 467             if (HERE(RUG) && ((obj == EMERALD && game.prop[RUG] != RUG_HOVER) ||
 468                               (obj == RUBY && game.prop[RUG] == RUG_HOVER))) {
 469                 int spk = RUG_RISES;
 470                 if (TOTING(RUG))
 471                     spk = RUG_WIGGLES;
 472                 if (obj == RUBY)
 473                     spk = RUG_SETTLES;
 474                 rspeak(spk);
 475                 if (spk != RUG_WIGGLES) {
 476                     /* FIXME: Arithmetic on state numbers */
 477                     int k = (game.prop[RUG] == RUG_HOVER) ? RUG_FLOOR : RUG_HOVER;
 478                     game.prop[RUG] = k;
 479                     if (k == RUG_HOVER)
 480                         k = objects[SAPPH].plac;
 481                     move(RUG + NOBJECTS, k);
 482                 }
 483             }
 484         } else if (obj == COINS && HERE(VEND)) {
 485             DESTROY(COINS);
 486             drop(BATTERY, game.loc);
 487             pspeak(BATTERY, look, FRESH_BATTERIES, true);
 488             return GO_CLEAROBJ;
 489         } else if (obj == BIRD && AT(DRAGON) && game.prop[DRAGON] == DRAGON_BARS) {
 490             rspeak(BIRD_BURNT);
 491             DESTROY(BIRD);
 492             return GO_CLEAROBJ;
 493         } else if (obj == BEAR && AT(TROLL)) {
 494             state_change(TROLL, TROLL_GONE);
 495             move(TROLL, LOC_NOWHERE);
 496             move(TROLL + NOBJECTS, LOC_NOWHERE);
 497             move(TROLL2, objects[TROLL].plac);
 498             move(TROLL2 + NOBJECTS, objects[TROLL].fixd);
 499             juggle(CHASM);
 500         } else if (obj != VASE ||
 501                    game.loc == objects[PILLOW].plac) {
 502             rspeak(OK_MAN);
 503         } else {
 504             state_change(VASE, AT(PILLOW)
 505                          ? VASE_WHOLE
 506                          : VASE_DROPPED);
 507             if (game.prop[VASE] != VASE_WHOLE)
 508                 game.fixed[VASE] = IS_FIXED;
 509         }
 510     }
 511     int k = LIQUID();
 512     if (k == obj)
 513         obj = BOTTLE;
 514     if (obj == BOTTLE && k != NO_OBJECT)
 515         game.place[k] = LOC_NOWHERE;
 516     if (obj == CAGE && game.prop[BIRD] == BIRD_CAGED)
 517         drop(BIRD, game.loc);
 518     drop(obj, game.loc);
 519     if (obj != BIRD)
 520         return GO_CLEAROBJ;
 521     game.prop[BIRD] = BIRD_UNCAGED;
 522     if (FOREST(game.loc))
 523         game.prop[BIRD] = BIRD_FOREST_UNCAGED;
 524     return GO_CLEAROBJ;
 525 }
 526
 527 static int drink(token_t verb, token_t obj)
 528 /*  Drink.  If no object, assume water and look for it here.  If water is in
 529  *  the bottle, drink that, else must be at a water loc, so drink stream. */
 530 {
 531     if (obj == NO_OBJECT && LIQLOC(game.loc) != WATER &&
 532         (LIQUID() != WATER || !HERE(BOTTLE))) {
 533         return GO_UNKNOWN;
 534     }
 535
 536     if (obj == BLOOD) {
 537         DESTROY(BLOOD);
 538         state_change(DRAGON, DRAGON_BLOODLESS);
 539         game.blooded = true;
 540         return GO_CLEAROBJ;
 541     }
 542
 543     if (obj != NO_OBJECT && obj != WATER) {
 544         rspeak(RIDICULOUS_ATTEMPT);
 545         return GO_CLEAROBJ;
 546     }
 547     if (LIQUID() == WATER && HERE(BOTTLE)) {
 548         game.place[WATER] = LOC_NOWHERE;
 549         state_change(BOTTLE, EMPTY_BOTTLE);
 550         return GO_CLEAROBJ;
 551     }
 552
 553     rspeak(actions[verb].message);
 554     return GO_CLEAROBJ;
 555 }
 556
 557 static int eat(token_t verb, token_t obj)
 558 /*  Eat.  Intransitive: assume food if present, else ask what.  Transitive: food
 559  *  ok, some things lose appetite, rest are ridiculous. */
 560 {
 561     if (obj == INTRANSITIVE) {
 562         if (!HERE(FOOD))
 563             return GO_UNKNOWN;
 564         DESTROY(FOOD);
 565         rspeak(THANKS_DELICIOUS);
 566         return GO_CLEAROBJ;
 567     }
 568     if (obj == FOOD) {
 569         DESTROY(FOOD);
 570         rspeak(THANKS_DELICIOUS);
 571         return GO_CLEAROBJ;
 572     }
 573     if (obj == BIRD ||
 574         obj == SNAKE ||
 575         obj == CLAM ||
 576         obj == OYSTER ||
 577         obj == DWARF ||
 578         obj == DRAGON ||
 579         obj == TROLL ||
 580         obj == BEAR ||
 581         obj == OGRE) {
 582         rspeak(LOST_APPETITE);
 583         return GO_CLEAROBJ;
 584     }
 585     rspeak(actions[verb].message);
 586     return GO_CLEAROBJ;
 587 }
 588
 589 static int extinguish(token_t verb, int obj)
 590 /* Extinguish.  Lamp, urn, dragon/volcano (nice try). */
 591 {
 592     if (obj == INTRANSITIVE) {
 593         if (HERE(LAMP) && game.prop[LAMP] == LAMP_BRIGHT)
 594             obj = LAMP;
 595         if (HERE(URN) && game.prop[URN] == URN_LIT)
 596             obj = URN;
 597         if (obj == INTRANSITIVE)
 598             return GO_UNKNOWN;
 599     }
 600
 601     if (obj == URN) {
 602         if (game.prop[URN] != URN_EMPTY) {
 603             state_change(URN, URN_DARK);
 604         } else {
 605             pspeak(URN, change, URN_DARK, true);
 606         }
 607         return GO_CLEAROBJ;
 608     }
 609
 610     if (obj == LAMP) {
 611         state_change(LAMP, LAMP_DARK);
 612         rspeak(DARK(game.loc) ?
 613                PITCH_DARK :
 614                NO_MESSAGE);
 615         return GO_CLEAROBJ;
 616     }
 617
 618     if (obj == DRAGON ||
 619         obj == VOLCANO) {
 620         rspeak(BEYOND_POWER);
 621         return GO_CLEAROBJ;
 622     }
 623
 624     rspeak(actions[verb].message);
 625     return GO_CLEAROBJ;
 626 }
 627
 628 static int feed(token_t verb, token_t obj)
 629 /*  Feed.  If bird, no seed.  Snake, dragon, troll: quip.  If dwarf, make him
 630  *  mad.  Bear, special. */
 631 {
 632     switch (obj) {
 633     case BIRD:
 634         rspeak(BIRD_PINING);
 635         break;
 636     case DRAGON:
 637         if (game.prop[DRAGON] != DRAGON_BARS)
 638             rspeak(RIDICULOUS_ATTEMPT);
 639         else
 640             rspeak(NOTHING_EDIBLE);
 641         break;
 642     case SNAKE:
 643         if (!game.closed && HERE(BIRD)) {
 644             DESTROY(BIRD);
 645             rspeak(BIRD_DEVOURED);
 646         } else
 647             rspeak(NOTHING_EDIBLE);
 648         break;
 649     case TROLL:
 650         rspeak(TROLL_VICES);
 651         break;
 652     case DWARF:
 653         if (HERE(FOOD)) {
 654             game.dflag += 2;
 655             rspeak(REALLY_MAD);
 656         } else
 657             rspeak(actions[verb].message);
 658         break;
 659     case BEAR:
 660         if (game.prop[BEAR] == BEAR_DEAD) {
 661             rspeak(RIDICULOUS_ATTEMPT);
 662             break;
 663         }
 664         if (game.prop[BEAR] == UNTAMED_BEAR) {
 665             if (HERE(FOOD)) {
 666                 DESTROY(FOOD);
 667                 game.fixed[AXE] = IS_FREE;
 668                 game.prop[AXE] = AXE_HERE;
 669                 state_change(BEAR, SITTING_BEAR);
 670             } else
 671                 rspeak(NOTHING_EDIBLE);
 672             break;
 673         }
 674         rspeak(actions[verb].message);
 675         break;
 676     case OGRE:
 677         if (HERE(FOOD))
 678             rspeak(OGRE_FULL);
 679         else
 680             rspeak(actions[verb].message);
 681         break;
 682     default:
 683         rspeak(AM_GAME);
 684     }
 685     return GO_CLEAROBJ;
 686 }
 687
 688 int fill(token_t verb, token_t obj)
 689 /*  Fill.  Bottle or urn must be empty, and liquid available.  (Vase
 690  *  is nasty.) */
 691 {
 692     if (obj == VASE) {
 693         if (LIQLOC(game.loc) == NO_OBJECT) {
 694             rspeak(FILL_INVALID);
 695             return GO_CLEAROBJ;
 696         }
 697         if (!TOTING(VASE)) {
 698             rspeak(ARENT_CARRYING);
 699             return GO_CLEAROBJ;
 700         }
 701         rspeak(SHATTER_VASE);
 702         game.prop[VASE] = VASE_BROKEN;
 703         game.fixed[VASE] = IS_FIXED;
 704         return (discard(verb, VASE, true));
 705     }
 706
 707     if (obj == URN) {
 708         if (game.prop[URN] != URN_EMPTY) {
 709             rspeak(FULL_URN);
 710             return GO_CLEAROBJ;
 711         }
 712         if (!HERE(BOTTLE)) {
 713             rspeak(FILL_INVALID);
 714             return GO_CLEAROBJ;
 715         }
 716         int k = LIQUID();
 717         switch (k) {
 718         case WATER:
 719             game.prop[BOTTLE] = EMPTY_BOTTLE;
 720             rspeak(WATER_URN);
 721             break;
 722         case OIL:
 723             game.prop[URN] = URN_DARK;
 724             game.prop[BOTTLE] = EMPTY_BOTTLE;
 725             rspeak(OIL_URN);
 726             break;
 727         case NO_OBJECT:
 728         default:
 729             rspeak(FILL_INVALID);
 730             return GO_CLEAROBJ;
 731         }
 732         game.place[k] = LOC_NOWHERE;
 733         return GO_CLEAROBJ;
 734     }
 735     if (obj != NO_OBJECT && obj != BOTTLE) {
 736         rspeak(actions[verb].message);
 737         return GO_CLEAROBJ;
 738     }
 739     if (obj == NO_OBJECT && !HERE(BOTTLE))
 740         return GO_UNKNOWN;
 741
 742     if (HERE(URN) && game.prop[URN] != URN_EMPTY) {
 743         rspeak(URN_NOPOUR);
 744         return GO_CLEAROBJ;
 745     }
 746     if (LIQUID() != NO_OBJECT) {
 747         rspeak(BOTTLE_FULL);
 748         return GO_CLEAROBJ;
 749     }
 750     if (LIQLOC(game.loc) == NO_OBJECT) {
 751         rspeak(NO_LIQUID);
 752         return GO_CLEAROBJ;
 753     }
 754
 755     state_change(BOTTLE, (LIQLOC(game.loc) == OIL)
 756                  ? OIL_BOTTLE
 757                  : WATER_BOTTLE);
 758     if (TOTING(BOTTLE))
 759         game.place[LIQUID()] = CARRIED;
 760     return GO_CLEAROBJ;
 761 }
 762
 763 static int find(token_t verb, token_t obj)
 764 /* Find.  Might be carrying it, or it might be here.  Else give caveat. */
 765 {
 766     if (TOTING(obj)) {
 767         rspeak(ALREADY_CARRYING);
 768         return GO_CLEAROBJ;
 769     }
 770
 771     if (game.closed) {
 772         rspeak(NEEDED_NEARBY);
 773         return GO_CLEAROBJ;
 774     }
 775
 776     if (AT(obj) ||
 777         (LIQUID() == obj && AT(BOTTLE)) ||
 778         obj == LIQLOC(game.loc) ||
 779         (obj == DWARF && atdwrf(game.loc) > 0)) {
 780         rspeak(YOU_HAVEIT);
 781         return GO_CLEAROBJ;
 782     }
 783
 784
 785     rspeak(actions[verb].message);
 786     return GO_CLEAROBJ;
 787 }
 788
 789 static int fly(token_t verb, token_t obj)
 790 /* Fly.  Snide remarks unless hovering rug is here. */
 791 {
 792     if (obj == INTRANSITIVE) {
 793         if (!HERE(RUG)) {
 794             rspeak(FLAP_ARMS);
 795             return GO_CLEAROBJ;
 796         }
 797         if (game.prop[RUG] != RUG_HOVER) {
 798             rspeak(RUG_NOTHING2);
 799             return GO_CLEAROBJ;
 800         }
 801         obj = RUG;
 802     }
 803
 804     if (obj != RUG) {
 805         rspeak(actions[verb].message);
 806         return GO_CLEAROBJ;
 807     }
 808     if (game.prop[RUG] != RUG_HOVER) {
 809         rspeak(RUG_NOTHING1);
 810         return GO_CLEAROBJ;
 811     }
 812     game.oldlc2 = game.oldloc;
 813     game.oldloc = game.loc;
 814     /* FIXME: Arithmetic on location values */
 815     game.newloc = game.place[RUG] + game.fixed[RUG] - game.loc;
 816
 817     if (game.prop[SAPPH] == STATE_NOTFOUND) {
 818         rspeak(RUG_GOES);
 819     } else {
 820         rspeak(RUG_RETURNS);
 821     }
 822     return GO_TERMINATE;
 823 }
 824
 825 static int inven(void)
 826 /* Inventory. If object, treat same as find.  Else report on current burden. */
 827 {
 828     bool empty = true;
 829     for (int i = 1; i <= NOBJECTS; i++) {
 830         if (i == BEAR ||
 831             !TOTING(i))
 832             continue;
 833         if (empty) {
 834             rspeak(NOW_HOLDING);
 835             empty = false;
 836         }
 837         pspeak(i, touch, -1, false);
 838     }
 839     if (TOTING(BEAR))
 840         rspeak(TAME_BEAR);
 841     if (empty)
 842         rspeak(NO_CARRY);
 843     return GO_CLEAROBJ;
 844 }
 845
 846 static int light(token_t verb, token_t obj)
 847 /*  Light.  Applicable only to lamp and urn. */
 848 {
 849     if (obj == INTRANSITIVE) {
 850         if (HERE(LAMP) && game.prop[LAMP] == LAMP_DARK && game.limit >= 0)
 851             obj = LAMP;
 852         if (HERE(URN) && game.prop[URN] == URN_DARK)
 853             obj =  URN;
 854         if (obj == INTRANSITIVE ||
 855             (HERE(LAMP) && game.prop[LAMP] == LAMP_DARK && game.limit >= 0 &&
 856              HERE(URN) && game.prop[URN] == URN_DARK))
 857             return GO_UNKNOWN;
 858     }
 859
 860     if (obj == URN) {
 861         state_change(URN, game.prop[URN] == URN_EMPTY ?
 862                      URN_EMPTY :
 863                      URN_LIT);
 864         return GO_CLEAROBJ;
 865     } else {
 866         if (obj != LAMP) {
 867             rspeak(actions[verb].message);
 868             return GO_CLEAROBJ;
 869         }
 870         if (game.limit < 0) {
 871             rspeak(LAMP_OUT);
 872             return GO_CLEAROBJ;
 873         }
 874         state_change(LAMP, LAMP_BRIGHT);
 875         if (game.wzdark)
 876             return GO_TOP;
 877         else
 878             return GO_CLEAROBJ;
 879     }
 880 }
 881
 882 static int listen(void)
 883 /*  Listen.  Intransitive only.  Print stuff based on object sound proprties. */
 884 {
 885     long sound = locations[game.loc].sound;
 886     if (sound != SILENT) {
 887         rspeak(sound);
 888         if (!locations[game.loc].loud)
 889             rspeak(NO_MESSAGE);
 890         return GO_CLEAROBJ;
 891     }
 892     for (int i = 1; i <= NOBJECTS; i++) {
 893         if (!HERE(i) ||
 894             objects[i].sounds[0] == NULL ||
 895             game.prop[i] < 0)
 896             continue;
 897         int mi =  game.prop[i];
 898         if (i == BIRD)
 899             mi += 3 * game.blooded;
 900         long packed_zzword = token_to_packed(game.zzword);
 901         pspeak(i, hear, mi, true, packed_zzword);
 902         rspeak(NO_MESSAGE);
 903         if (i == BIRD && mi == BIRD_ENDSTATE)
 904             DESTROY(BIRD);
 905         return GO_CLEAROBJ;
 906     }
 907     rspeak(ALL_SILENT);
 908     return GO_CLEAROBJ;
 909 }
 910
 911 static int lock(token_t verb, token_t obj)
 912 /* Lock, unlock, no object given.  Assume various things if present. */
 913 {
 914     if (obj == INTRANSITIVE) {
 915         if (HERE(CLAM))
 916             obj = CLAM;
 917         if (HERE(OYSTER))
 918             obj = OYSTER;
 919         if (AT(DOOR))
 920             obj = DOOR;
 921         if (AT(GRATE))
 922             obj = GRATE;
 923         if (HERE(CHAIN))
 924             obj = CHAIN;
 925         if (obj == INTRANSITIVE) {
 926             rspeak(NOTHING_LOCKED);
 927             return GO_CLEAROBJ;
 928         }
 929     }
 930
 931     /*  Lock, unlock object.  Special stuff for opening clam/oyster
 932      *  and for chain. */
 933     if (obj == GRATE ||
 934         obj == CHAIN) {
 935         if (HERE(KEYS)) {
 936             if (obj == CHAIN)
 937                 return chain(verb);
 938             if (game.closng) {
 939                 rspeak(EXIT_CLOSED);
 940                 if (!game.panic)
 941                     game.clock2 = PANICTIME;
 942                 game.panic = true;
 943                 return GO_CLEAROBJ ;
 944             } else {
 945                 state_change(GRATE, (verb == LOCK) ?
 946                              GRATE_CLOSED :
 947                              GRATE_OPEN);
 948                 return GO_CLEAROBJ;
 949             }
 950         }
 951         rspeak(NO_KEYS);
 952         return GO_CLEAROBJ;
 953     }
 954
 955     switch (obj) {
 956     case CLAM:
 957         if (verb == LOCK)
 958             rspeak(HUH_MAN);
 959         else if (!TOTING(TRIDENT))
 960             rspeak(OYSTER_OPENER);
 961         else {
 962             DESTROY(CLAM);
 963             drop(OYSTER, game.loc);
 964             drop(PEARL, LOC_CULDESAC);
 965             rspeak(PEARL_FALLS);
 966         }
 967         return GO_CLEAROBJ;
 968     case OYSTER:
 969         if (verb == LOCK)
 970             rspeak(HUH_MAN);
 971         else
 972             rspeak(OYSTER_OPENER);
 973
 974         return GO_CLEAROBJ;
 975     case DOOR:
 976         rspeak((game.prop[DOOR] == DOOR_UNRUSTED) ? OK_MAN : RUSTY_DOOR);
 977         break;
 978     case CAGE:
 979         rspeak( NO_LOCK);
 980         break;
 981     case KEYS:
 982         rspeak(CANNOT_UNLOCK);
 983         break;
 984     default:
 985         rspeak(actions[verb].message);
 986     }
 987
 988     return GO_CLEAROBJ;
 989 }
 990
 991 static int pour(token_t verb, token_t obj)
 992 /*  Pour.  If no object, or object is bottle, assume contents of bottle.
 993  *  special tests for pouring water or oil on plant or rusty door. */
 994 {
 995     if (obj == BOTTLE ||
 996         obj == NO_OBJECT)
 997         obj = LIQUID();
 998     if (obj == NO_OBJECT)
 999         return GO_UNKNOWN;
1000     if (!TOTING(obj)) {
1001         rspeak(actions[verb].message);
1002         return GO_CLEAROBJ;
1003     }
1004
1005     if (obj != OIL && obj != WATER) {
1006         rspeak(CANT_POUR);
1007         return GO_CLEAROBJ;
1008     }
1009     if (HERE(URN) && game.prop[URN] == URN_EMPTY)
1010         return fill(verb, URN);
1011     game.prop[BOTTLE] = EMPTY_BOTTLE;
1012     game.place[obj] = LOC_NOWHERE;
1013     if (!(AT(PLANT) ||
1014           AT(DOOR))) {
1015         rspeak(GROUND_WET);
1016         return GO_CLEAROBJ;
1017     }
1018     if (!AT(DOOR)) {
1019         if (obj == WATER) {
1020             /* cycle through the three plant states */
1021             state_change(PLANT, MOD(game.prop[PLANT] + 1, 3));
1022             game.prop[PLANT2] = game.prop[PLANT];
1023             return GO_MOVE;
1024         } else {
1025             rspeak(SHAKING_LEAVES);
1026             return GO_CLEAROBJ;
1027         }
1028     } else {
1029         state_change(DOOR, (obj == OIL) ?
1030                      DOOR_UNRUSTED :
1031                      DOOR_RUSTED);
1032         return GO_CLEAROBJ;
1033     }
1034 }
1035
1036 static int quit(void)
1037 /*  Quit.  Intransitive only.  Verify intent and exit if that's what he wants. */
1038 {
1039     if (yes(arbitrary_messages[REALLY_QUIT], arbitrary_messages[OK_MAN], arbitrary_messages[OK_MAN]))
1040         terminate(quitgame);
1041     return GO_CLEAROBJ;
1042 }
1043
1044 static int read(struct command_t command)
1045 /*  Read.  Print stuff based on objtxt.  Oyster (?) is special case. */
1046 {
1047     if (command.obj == INTRANSITIVE) {
1048         command.obj = 0;
1049         for (int i = 1; i <= NOBJECTS; i++) {
1050             if (HERE(i) && objects[i].texts[0] != NULL && game.prop[i] >= 0)
1051                 command.obj = command.obj * NOBJECTS + i;
1052         }
1053         if (command.obj > NOBJECTS ||
1054             command.obj == 0 ||
1055             DARK(game.loc))
1056             return GO_UNKNOWN;
1057     }
1058
1059     if (DARK(game.loc)) {
1060         sspeak(NO_SEE, command.raw1);
1061     } else if (command.obj == OYSTER && !game.clshnt && game.closed) {
1062         game.clshnt = yes(arbitrary_messages[CLUE_QUERY], arbitrary_messages[WAYOUT_CLUE], arbitrary_messages[OK_MAN]);
1063     } else if (objects[command.obj].texts[0] == NULL ||
1064                game.prop[command.obj] < 0) {
1065         rspeak(actions[command.verb].message);
1066     } else
1067         pspeak(command.obj, study, game.prop[command.obj], true);
1068     return GO_CLEAROBJ;
1069 }
1070
1071 static int reservoir(void)
1072 /*  Z'ZZZ (word gets recomputed at startup; different each game). */
1073 {
1074     /* FIXME: Arithmetic on state numbers */
1075     if (!AT(RESER) && game.loc != game.fixed[RESER] - 1) {
1076         rspeak(NOTHING_HAPPENS);
1077         return GO_CLEAROBJ;
1078     } else {
1079         state_change(RESER,
1080                      game.prop[RESER] == WATERS_PARTED ? WATERS_UNPARTED : WATERS_PARTED);
1081         if (AT(RESER))
1082             return GO_CLEAROBJ;
1083         else {
1084             game.oldlc2 = game.loc;
1085             game.newloc = LOC_NOWHERE;
1086             rspeak(NOT_BRIGHT);
1087             return GO_TERMINATE;
1088         }
1089     }
1090 }
1091
1092 static int rub(token_t verb, token_t obj)
1093 /* Rub.  Yields various snide remarks except for lit urn. */
1094 {
1095     if (obj == URN && game.prop[URN] == URN_LIT) {
1096         DESTROY(URN);
1097         drop(AMBER, game.loc);
1098         game.prop[AMBER] = AMBER_IN_ROCK;
1099         --game.tally;
1100         drop(CAVITY, game.loc);
1101         rspeak(URN_GENIES);
1102     } else if (obj != LAMP) {
1103         rspeak(PECULIAR_NOTHING);
1104     } else {
1105         rspeak(actions[verb].message);
1106     }
1107     return GO_CLEAROBJ;
1108 }
1109
1110 static int say(struct command_t *command)
1111 /* Say.  Echo WD2 (or WD1 if no WD2 (SAY WHAT?, etc.).)  Magic words override. */
1112 {
1113     if (command->wd2 > 0) {
1114         command->wd1 = command->wd2;
1115         strcpy(command->raw1, command->raw2);
1116     }
1117     char word1[TOKLEN + 1];
1118     packed_to_token(command->wd1, word1);
1119     int wd = (int) get_vocab_id(word1);
1120     if (wd == MOTION_WORD(XYZZY) ||
1121         wd == MOTION_WORD(PLUGH) ||
1122         wd == MOTION_WORD(PLOVER) ||
1123         wd == ACTION_WORD(FEE) ||
1124         wd == ACTION_WORD(FIE) ||
1125         wd == ACTION_WORD(FOE) ||
1126         wd == ACTION_WORD(FOO) ||
1127         wd == ACTION_WORD(FUM) ||
1128         wd == ACTION_WORD(PART)) {
1129         /* FIXME: scribbles on the interpreter's command block */
1130         wordclear(&command->wd2);
1131         return GO_LOOKUP;
1132     }
1133     sspeak(OKEY_DOKEY, command->raw1);
1134     return GO_CLEAROBJ;
1135 }
1136
1137 static int throw_support(long spk)
1138 {
1139     rspeak(spk);
1140     drop(AXE, game.loc);
1141     return GO_MOVE;
1142 }
1143
1144 static int throw (struct command_t *command)
1145 /*  Throw.  Same as discard unless axe.  Then same as attack except
1146  *  ignore bird, and if dwarf is present then one might be killed.
1147  *  (Only way to do so!)  Axe also special for dragon, bear, and
1148  *  troll.  Treasures special for troll. */
1149 {
1150     if (!TOTING(command->obj)) {
1151         rspeak(actions[command->verb].message);
1152         return GO_CLEAROBJ;
1153     }
1154     if (objects[command->obj].is_treasure && AT(TROLL)) {
1155         /*  Snarf a treasure for the troll. */
1156         drop(command->obj, LOC_NOWHERE);
1157         move(TROLL, LOC_NOWHERE);
1158         move(TROLL + NOBJECTS, LOC_NOWHERE);
1159         drop(TROLL2, objects[TROLL].plac);
1160         drop(TROLL2 + NOBJECTS, objects[TROLL].fixd);
1161         juggle(CHASM);
1162         rspeak(TROLL_SATISFIED);
1163         return GO_CLEAROBJ;
1164     }
1165     if (command->obj == FOOD && HERE(BEAR)) {
1166         /* But throwing food is another story. */
1167         command->obj = BEAR;
1168         return (feed(command->verb, command->obj));
1169     }
1170     if (command->obj != AXE)
1171         return (discard(command->verb, command->obj, false));
1172     else {
1173         if (atdwrf(game.loc) <= 0) {
1174             if (AT(DRAGON) && game.prop[DRAGON] == DRAGON_BARS)
1175                 return throw_support(DRAGON_SCALES);
1176             if (AT(TROLL))
1177                 return throw_support(TROLL_RETURNS);
1178             else if (AT(OGRE))
1179                 return throw_support(OGRE_DODGE);
1180             else if (HERE(BEAR) && game.prop[BEAR] == UNTAMED_BEAR) {
1181                 /* This'll teach him to throw the axe at the bear! */
1182                 drop(AXE, game.loc);
1183                 game.fixed[AXE] = IS_FIXED;
1184                 juggle(BEAR);
1185                 state_change(AXE, AXE_LOST);
1186                 return GO_CLEAROBJ;
1187             }
1188             command->obj = NO_OBJECT;
1189             return (attack(command));
1190         }
1191
1192         if (randrange(NDWARVES + 1) < game.dflag) {
1193             return throw_support(DWARF_DODGES);
1194         } else {
1195             long i = atdwrf(game.loc);
1196             game.dseen[i] = false;
1197             game.dloc[i] = LOC_NOWHERE;
1198             return throw_support((++game.dkill == 1) ?
1199                                  DWARF_SMOKE :
1200                                  KILLED_DWARF);
1201         }
1202     }
1203 }
1204
1205 static int wake(token_t verb, token_t obj)
1206 /* Wake.  Only use is to disturb the dwarves. */
1207 {
1208     if (obj != DWARF ||
1209         !game.closed) {
1210         rspeak(actions[verb].message);
1211         return GO_CLEAROBJ;
1212     } else {
1213         rspeak(PROD_DWARF);
1214         return GO_DWARFWAKE;
1215     }
1216 }
1217
1218 static int wave(token_t verb, token_t obj)
1219 /* Wave.  No effect unless waving rod at fissure or at bird. */
1220 {
1221     if (obj != ROD ||
1222         !TOTING(obj) ||
1223         (!HERE(BIRD) &&
1224          (game.closng ||
1225           !AT(FISSURE)))) {
1226         rspeak(((!TOTING(obj)) && (obj != ROD ||
1227                                    !TOTING(ROD2))) ?
1228                ARENT_CARRYING :
1229                actions[verb].message);
1230         return GO_CLEAROBJ;
1231     }
1232
1233     if (game.prop[BIRD] == BIRD_UNCAGED && game.loc == game.place[STEPS] && game.prop[JADE] < 0) {
1234         drop(JADE, game.loc);
1235         game.prop[JADE] = STATE_FOUND;
1236         --game.tally;
1237         rspeak(NECKLACE_FLY);
1238         return GO_CLEAROBJ;
1239     } else {
1240         if (game.closed) {
1241             rspeak((game.prop[BIRD] == BIRD_CAGED) ?
1242                    CAGE_FLY :
1243                    FREE_FLY);
1244             return GO_DWARFWAKE;
1245         }
1246         if (game.closng ||
1247             !AT(FISSURE)) {
1248             rspeak((game.prop[BIRD] == BIRD_CAGED) ?
1249                    CAGE_FLY :
1250                    FREE_FLY);
1251             return GO_CLEAROBJ;
1252         }
1253         if (HERE(BIRD))
1254             rspeak((game.prop[BIRD] == BIRD_CAGED) ?
1255                    CAGE_FLY :
1256                    FREE_FLY);
1257
1258         state_change(FISSURE,
1259                      game.prop[FISSURE] == BRIDGED ? UNBRIDGED : BRIDGED);
1260         return GO_CLEAROBJ;
1261     }
1262 }
1263
1264 int action(struct command_t *command)
1265 /*  Analyse a verb.  Remember what it was, go back for object if second word
1266  *  unless verb is "say", which snarfs arbitrary second word.
1267  */
1268 {
1269     if (command->part == unknown) {
1270         /*  Analyse an object word.  See if the thing is here, whether
1271          *  we've got a verb yet, and so on.  Object must be here
1272          *  unless verb is "find" or "invent(ory)" (and no new verb
1273          *  yet to be analysed).  Water and oil are also funny, since
1274          *  they are never actually dropped at any location, but might
1275          *  be here inside the bottle or urn or as a feature of the
1276          *  location. */
1277         if (HERE(command->obj))
1278             /* FALL THROUGH */;
1279         else if (command->obj == GRATE) {
1280             if (game.loc == LOC_START ||
1281                 game.loc == LOC_VALLEY ||
1282                 game.loc == LOC_SLIT) {
1283                 command->obj = DPRSSN;
1284             }
1285             if (game.loc == LOC_COBBLE ||
1286                 game.loc == LOC_DEBRIS ||
1287                 game.loc == LOC_AWKWARD ||
1288                 game.loc == LOC_BIRD ||
1289                 game.loc == LOC_PITTOP) {
1290                 command->obj = ENTRNC;
1291             }
1292         } else if (command->obj == DWARF && atdwrf(game.loc) > 0)
1293             /* FALL THROUGH */;
1294         else if ((LIQUID() == command->obj && HERE(BOTTLE)) ||
1295                  command->obj == LIQLOC(game.loc))
1296             /* FALL THROUGH */;
1297         else if (command->obj == OIL && HERE(URN) && game.prop[URN] != 0) {
1298             command->obj = URN;
1299             /* FALL THROUGH */;
1300         } else if (command->obj == PLANT && AT(PLANT2) && game.prop[PLANT2] != 0) {
1301             command->obj = PLANT2;
1302             /* FALL THROUGH */;
1303         } else if (command->obj == KNIFE && game.knfloc == game.loc) {
1304             game.knfloc = -1;
1305             rspeak(KNIVES_VANISH);
1306             return GO_CLEAROBJ;
1307         } else if (command->obj == ROD && HERE(ROD2)) {
1308             command->obj = ROD2;
1309             /* FALL THROUGH */;
1310         } else if ((command->verb == FIND ||
1311                     command->verb == INVENTORY) && command->wd2 <= 0)
1312             /* FALL THROUGH */;
1313         else {
1314             sspeak(NO_SEE, command->raw1);
1315             return GO_CLEAROBJ;
1316         }
1317
1318         if (command->wd2 > 0)
1319             return GO_WORD2;
1320         if (command->verb != 0)
1321             command->part = transitive;
1322     }
1323
1324     switch (command->part) {
1325     case intransitive:
1326         if (command->wd2 > 0 && command->verb != SAY)
1327             return GO_WORD2;
1328         if (command->verb == SAY)
1329             command->obj = command->wd2;
1330         if (command->obj == NO_OBJECT ||
1331             command->obj == INTRANSITIVE) {
1332             /*  Analyse an intransitive verb (ie, no object given yet). */
1333             switch (command->verb) {
1334             case CARRY:
1335                 return vcarry(command->verb, INTRANSITIVE);
1336             case  DROP:
1337                 return GO_UNKNOWN;
1338             case  SAY:
1339                 return GO_UNKNOWN;
1340             case  UNLOCK:
1341                 return lock(command->verb, INTRANSITIVE);
1342             case  NOTHING: {
1343                 rspeak(OK_MAN);
1344                 return (GO_CLEAROBJ);
1345             }
1346             case  LOCK:
1347                 return lock(command->verb, INTRANSITIVE);
1348             case  LIGHT:
1349                 return light(command->verb, INTRANSITIVE);
1350             case  EXTINGUISH:
1351                 return extinguish(command->verb, INTRANSITIVE);
1352             case  WAVE:
1353                 return GO_UNKNOWN;
1354             case  TAME:
1355                 return GO_UNKNOWN;
1356             case GO: {
1357                 rspeak(actions[command->verb].message);
1358                 return GO_CLEAROBJ;
1359             }
1360             case ATTACK:
1361                 return attack(command);
1362             case POUR:
1363                 return pour(command->verb, command->obj);
1364             case EAT:
1365                 return eat(command->verb, INTRANSITIVE);
1366             case DRINK:
1367                 return drink(command->verb, command->obj);
1368             case RUB:
1369                 return GO_UNKNOWN;
1370             case THROW:
1371                 return GO_UNKNOWN;
1372             case QUIT:
1373                 return quit();
1374             case FIND:
1375                 return GO_UNKNOWN;
1376             case INVENTORY:
1377                 return inven();
1378             case FEED:
1379                 return GO_UNKNOWN;
1380             case FILL:
1381                 return fill(command->verb, command->obj);
1382             case BLAST:
1383                 blast();
1384                 return GO_CLEAROBJ;
1385             case SCORE:
1386                 score(scoregame);
1387                 return GO_CLEAROBJ;
1388             case FEE:
1389             case FIE:
1390             case FOE:
1391             case FOO:
1392             case FUM:
1393                 return bigwords(command->id1);
1394             case BRIEF:
1395                 return brief();
1396             case READ:
1397                 command->obj = INTRANSITIVE;
1398                 return read(*command);
1399             case BREAK:
1400                 return GO_UNKNOWN;
1401             case WAKE:
1402                 return GO_UNKNOWN;
1403             case SAVE:
1404                 return suspend();
1405             case RESUME:
1406                 return resume();
1407             case FLY:
1408                 return fly(command->verb, INTRANSITIVE);
1409             case LISTEN:
1410                 return listen();
1411             case PART:
1412                 return reservoir();
1413             default:
1414                 BUG(INTRANSITIVE_ACTION_VERB_EXCEEDS_GOTO_LIST); // LCOV_EXCL_LINE
1415             }
1416         }
1417     /* FALLTHRU */
1418     case transitive:
1419         /*  Analyse a transitive verb. */
1420         switch (command->verb) {
1421         case  CARRY:
1422             return vcarry(command->verb, command->obj);
1423         case  DROP:
1424             return discard(command->verb, command->obj, false);
1425         case  SAY:
1426             return say(command);
1427         case  UNLOCK:
1428             return lock(command->verb, command->obj);
1429         case  NOTHING: {
1430             rspeak(OK_MAN);
1431             return (GO_CLEAROBJ);
1432         }
1433         case  LOCK:
1434             return lock(command->verb, command->obj);
1435         case LIGHT:
1436             return light(command->verb, command->obj);
1437         case EXTINGUISH:
1438             return extinguish(command->verb, command->obj);
1439         case WAVE:
1440             return wave(command->verb, command->obj);
1441         case TAME: {
1442             rspeak(actions[command->verb].message);
1443             return GO_CLEAROBJ;
1444         }
1445         case GO: {
1446             rspeak(actions[command->verb].message);
1447             return GO_CLEAROBJ;
1448         }
1449         case ATTACK:
1450             return attack(command);
1451         case POUR:
1452             return pour(command->verb, command->obj);
1453         case EAT:
1454             return eat(command->verb, command->obj);
1455         case DRINK:
1456             return drink(command->verb, command->obj);
1457         case RUB:
1458             return rub(command->verb, command->obj);
1459         case THROW:
1460             return throw (command);
1461         case QUIT: {
1462             rspeak(actions[command->verb].message);
1463             return GO_CLEAROBJ;
1464         }
1465         case FIND:
1466             return find(command->verb, command->obj);
1467         case INVENTORY:
1468             return find(command->verb, command->obj);
1469         case FEED:
1470             return feed(command->verb, command->obj);
1471         case FILL:
1472             return fill(command->verb, command->obj);
1473         case BLAST:
1474             blast();
1475             return GO_CLEAROBJ;
1476         case SCORE: {
1477             rspeak(actions[command->verb].message);
1478             return GO_CLEAROBJ;
1479         }
1480         case FEE:
1481         case FIE:
1482         case FOE:
1483         case FOO:
1484         case FUM: {
1485             rspeak(actions[command->verb].message);
1486             return GO_CLEAROBJ;
1487         }
1488         case BRIEF: {
1489             rspeak(actions[command->verb].message);
1490             return GO_CLEAROBJ;
1491         }
1492         case READ:
1493             return read(*command);
1494         case BREAK:
1495             return vbreak(command->verb, command->obj);
1496         case WAKE:
1497             return wake(command->verb, command->obj);
1498         case SAVE: {
1499             rspeak(actions[command->verb].message);
1500             return GO_CLEAROBJ;
1501         }
1502         case RESUME: {
1503             rspeak(actions[command->verb].message);
1504             return GO_CLEAROBJ;
1505         }
1506         case FLY:
1507             return fly(command->verb, command->obj);
1508         case LISTEN: {
1509             rspeak(actions[command->verb].message);
1510             return GO_CLEAROBJ;
1511         }
1512         case PART:
1513             return reservoir();
1514         default:
1515             BUG(TRANSITIVE_ACTION_VERB_EXCEEDS_GOTO_LIST); // LCOV_EXCL_LINE
1516         }
1517     case unknown:
1518         /* Unknown verb, couldn't deduce object - might need hint */
1519         sspeak(WHAT_DO, command->raw1);
1520         return GO_CHECKHINT;
1521     default:
1522         BUG(SPEECHPART_NOT_TRANSITIVE_OR_INTRANSITIVE_OR_UNKNOWN); // LCOV_EXCL_LINE
1523     }
1524 }