actions.c

   1 #include <stdlib.h>
   2 #include <stdbool.h>
   3 #include <string.h>
   4 #include "advent.h"
   5 #include "dungeon.h"
   6
   7 static int fill(token_t, token_t);
   8
   9 static void state_change(long obj, long state)
  10 {
  11     game.prop[obj] = state;
  12     pspeak(obj, change, state, true);
  13 }
  14
  15 static int attack(struct command_t *command)
  16 /*  Attack.  Assume target if unambiguous.  "Throw" also links here.
  17  *  Attackable objects fall into two categories: enemies (snake,
  18  *  dwarf, etc.)  and others (bird, clam, machine).  Ambiguous if 2
  19  *  enemies, or no enemies but 2 others. */
  20 {
  21     vocab_t verb = command->verb;
  22     vocab_t obj = command->obj;
  23
  24     long spk = actions[verb].message;
  25     if (obj == NO_OBJECT ||
  26         obj == INTRANSITIVE) {
  27         int changes = 0;
  28         if (atdwrf(game.loc) > 0) {
  29             obj = DWARF;
  30             ++changes;
  31         }
  32         if (HERE(SNAKE)) {
  33             obj = SNAKE;
  34             ++changes;
  35         }
  36         if (AT(DRAGON) && game.prop[DRAGON] == DRAGON_BARS) {
  37             obj = DRAGON;
  38             ++changes;
  39         }
  40         if (AT(TROLL)) {
  41             obj = TROLL;
  42             ++changes;
  43         }
  44         if (AT(OGRE)) {
  45             obj = OGRE;
  46             ++changes;
  47         }
  48         if (HERE(BEAR) && game.prop[BEAR] == UNTAMED_BEAR) {
  49             obj = BEAR;
  50             ++changes;
  51         }
  52         /* check for low-priority targets */
  53         if (obj == NO_OBJECT) {
  54             /* Can't attack bird or machine by throwing axe. */
  55             if (HERE(BIRD) && verb != THROW) {
  56                 obj = BIRD;
  57                 ++changes;
  58             }
  59             if (HERE(VEND) && verb != THROW) {
  60                 obj = VEND;
  61                 ++changes;
  62             }
  63             /* Clam and oyster both treated as clam for intransitive case;
  64              * no harm done. */
  65             if (HERE(CLAM) || HERE(OYSTER)) {
  66                 obj = CLAM;
  67                 ++changes;
  68             }
  69         }
  70         if (changes >= 2)
  71             return GO_UNKNOWN;
  72
  73     }
  74     if (obj == BIRD) {
  75         if (game.closed) {
  76             rspeak(UNHAPPY_BIRD);
  77             return GO_CLEAROBJ;
  78         }
  79         DESTROY(BIRD);
  80         spk = BIRD_DEAD;
  81     } else if (obj == VEND) {
  82         state_change(VEND,
  83                      game.prop[VEND] == VEND_BLOCKS ? VEND_UNBLOCKS : VEND_BLOCKS);
  84         return GO_CLEAROBJ;
  85     }
  86
  87     if (obj == NO_OBJECT)
  88         spk = NO_TARGET;
  89     if (obj == CLAM ||
  90         obj == OYSTER)
  91         spk = SHELL_IMPERVIOUS;
  92     if (obj == SNAKE)
  93         spk = SNAKE_WARNING;
  94     if (obj == DWARF)
  95         spk = BARE_HANDS_QUERY;
  96     if (obj == DWARF && game.closed)
  97         return GO_DWARFWAKE;
  98     if (obj == DRAGON)
  99         spk = ALREADY_DEAD;
 100     if (obj == TROLL)
 101         spk = ROCKY_TROLL;
 102     if (obj == OGRE)
 103         spk = OGRE_DODGE;
 104     if (obj == OGRE && atdwrf(game.loc) > 0) {
 105         rspeak(spk);
 106         rspeak(KNIFE_THROWN);
 107         DESTROY(OGRE);
 108         int dwarves = 0;
 109         for (int i = 1; i < PIRATE; i++) {
 110             if (game.dloc[i] == game.loc) {
 111                 ++dwarves;
 112                 game.dloc[i] = LOC_LONGWEST;
 113                 game.dseen[i] = false;
 114             }
 115         }
 116         spk = (dwarves > 1) ?
 117               OGRE_PANIC1 :
 118               OGRE_PANIC2;
 119     } else if (obj == BEAR) {
 120         switch (game.prop[BEAR]) {
 121         case UNTAMED_BEAR:
 122             spk = BEAR_HANDS;
 123             break;
 124         case SITTING_BEAR:
 125             spk = BEAR_CONFUSED;
 126             break;
 127         case CONTENTED_BEAR:
 128             spk = BEAR_CONFUSED;
 129             break;
 130         case BEAR_DEAD:
 131             spk = ALREADY_DEAD;
 132             break;
 133         }
 134     } else if (obj == DRAGON && game.prop[DRAGON] == DRAGON_BARS) {
 135         /*  Fun stuff for dragon.  If he insists on attacking it, win!
 136          *  Set game.prop to dead, move dragon to central loc (still
 137          *  fixed), move rug there (not fixed), and move him there,
 138          *  too.  Then do a null motion to get new description. */
 139         rspeak(BARE_HANDS_QUERY);
 140         if (silent_yes()) {
 141             // FIXME: setting wd1 is a workaround for broken logic
 142             command->wd1 = token_to_packed("Y");
 143         } else {
 144             // FIXME: setting wd1 is a workaround for broken logic
 145             command->wd1 = token_to_packed("N");
 146             return GO_CHECKFOO;
 147         }
 148         state_change(DRAGON, DRAGON_DEAD);
 149         game.prop[RUG] = RUG_FLOOR;
 150         /* FIXME: Arithmetic on location values */
 151         int k = (objects[DRAGON].plac + objects[DRAGON].fixd) / 2;
 152         move(DRAGON + NOBJECTS, -1);
 153         move(RUG + NOBJECTS, 0);
 154         move(DRAGON, k);
 155         move(RUG, k);
 156         drop(BLOOD, k);
 157         for (obj = 1; obj <= NOBJECTS; obj++) {
 158             if (game.place[obj] == objects[DRAGON].plac ||
 159                 game.place[obj] == objects[DRAGON].fixd)
 160                 move(obj, k);
 161         }
 162         game.loc = k;
 163         return GO_MOVE;
 164     }
 165
 166     rspeak(spk);
 167     return GO_CLEAROBJ;
 168 }
 169
 170 static int bigwords(token_t foo)
 171 /*  FEE FIE FOE FOO (AND FUM).  Advance to next state if given in proper order.
 172  *  Look up foo in special section of vocab to determine which word we've got.
 173  *  Last word zips the eggs back to the giant room (unless already there). */
 174 {
 175     char word[TOKLEN + 1];
 176     packed_to_token(foo, word);
 177     int k = (int) get_special_vocab_id(word);
 178     if (game.foobar != 1 - k) {
 179         if (game.foobar != 0 && game.loc == LOC_GIANTROOM) {
 180             rspeak( START_OVER);
 181         } else {
 182             rspeak(NOTHING_HAPPENS);
 183         }
 184         return GO_CLEAROBJ;
 185     } else {
 186         game.foobar = k;
 187         if (k != 4) {
 188             rspeak(OK_MAN);
 189             return GO_CLEAROBJ;
 190         }
 191         game.foobar = 0;
 192         if (game.place[EGGS] == objects[EGGS].plac ||
 193             (TOTING(EGGS) && game.loc == objects[EGGS].plac)) {
 194             rspeak(NOTHING_HAPPENS);
 195             return GO_CLEAROBJ;
 196         } else {
 197             /*  Bring back troll if we steal the eggs back from him before
 198              *  crossing. */
 199             if (game.place[EGGS] == LOC_NOWHERE && game.place[TROLL] == LOC_NOWHERE && game.prop[TROLL] == TROLL_UNPAID)
 200                 game.prop[TROLL] = TROLL_PAIDONCE;
 201             k = EGGS_DONE;
 202             if (HERE(EGGS))
 203                 k = EGGS_VANISHED;
 204             if (game.loc == objects[EGGS].plac)
 205                 k = EGGS_HERE;
 206             move(EGGS, objects[EGGS].plac);
 207             pspeak(EGGS, look, k, true);
 208             return GO_CLEAROBJ;
 209         }
 210     }
 211 }
 212
 213 static int bivalve(token_t verb, token_t obj)
 214 /* Clam/oyster actions */
 215 {
 216     bool is_oyster = (obj == OYSTER);
 217     if (verb == LOCK) {
 218         rspeak(HUH_MAN);
 219         return GO_CLEAROBJ;
 220     }
 221     if (!TOTING(TRIDENT)) {
 222         rspeak(is_oyster ?
 223                OYSTER_OPENER :
 224                CLAM_OPENER);
 225         return GO_CLEAROBJ;
 226     }
 227     if (TOTING(obj)) {
 228         rspeak( is_oyster ?
 229                 DROP_OYSTER :
 230                 DROP_CLAM);
 231         return GO_CLEAROBJ;
 232     }
 233
 234     if (!is_oyster) {
 235         DESTROY(CLAM);
 236         drop(OYSTER, game.loc);
 237         drop(PEARL, LOC_CULDESAC);
 238     }
 239     rspeak(is_oyster ?
 240            OYSTER_OPENS :
 241            PEARL_FALLS);
 242     return GO_CLEAROBJ;
 243 }
 244
 245 static void blast(void)
 246 /*  Blast.  No effect unless you've got dynamite, which is a neat trick! */
 247 {
 248     if (game.prop[ROD2] < 0 ||
 249         !game.closed)
 250         rspeak(REQUIRES_DYNAMITE);
 251     else {
 252         game.bonus = VICTORY_MESSAGE;
 253         if (game.loc == LOC_NE)
 254             game.bonus = DEFEAT_MESSAGE;
 255         if (HERE(ROD2))
 256             game.bonus = SPLATTER_MESSAGE;
 257         rspeak(game.bonus);
 258         terminate(endgame);
 259     }
 260 }
 261
 262 static int vbreak(token_t verb, token_t obj)
 263 /*  Break.  Only works for mirror in repository and, of course, the vase. */
 264 {
 265     if (obj == MIRROR) {
 266         if (game.closed) {
 267             rspeak(BREAK_MIRROR);
 268             return GO_DWARFWAKE;
 269         } else {
 270             rspeak(TOO_FAR);
 271             return GO_CLEAROBJ;
 272         }
 273     }
 274     if (obj == VASE && game.prop[VASE] == VASE_WHOLE) {
 275         if (TOTING(VASE))
 276             drop(VASE, game.loc);
 277         state_change(VASE, VASE_BROKEN);
 278         game.fixed[VASE] = -1;
 279         return GO_CLEAROBJ;
 280     }
 281     rspeak(actions[verb].message);
 282     return (GO_CLEAROBJ);
 283 }
 284
 285 static int brief(void)
 286 /*  Brief.  Intransitive only.  Suppress long descriptions after first time. */
 287 {
 288     game.abbnum = 10000;
 289     game.detail = 3;
 290     rspeak(BRIEF_CONFIRM);
 291     return GO_CLEAROBJ;
 292 }
 293
 294 static int vcarry(token_t verb, token_t obj)
 295 /*  Carry an object.  Special cases for bird and cage (if bird in cage, can't
 296  *  take one without the other).  Liquids also special, since they depend on
 297  *  status of bottle.  Also various side effects, etc. */
 298 {
 299     int spk;
 300     if (obj == INTRANSITIVE) {
 301         /*  Carry, no object given yet.  OK if only one object present. */
 302         if (game.atloc[game.loc] == 0 ||
 303             game.link[game.atloc[game.loc]] != 0 ||
 304             atdwrf(game.loc) > 0)
 305             return GO_UNKNOWN;
 306         obj = game.atloc[game.loc];
 307     }
 308
 309     if (TOTING(obj)) {
 310         rspeak(ALREADY_CARRYING);
 311         return GO_CLEAROBJ;
 312     }
 313     spk = YOU_JOKING;
 314     if (obj == PLANT && game.prop[PLANT] <= 0)
 315         spk = DEEP_ROOTS;
 316     if (obj == BEAR && game.prop[BEAR] == SITTING_BEAR)
 317         spk = BEAR_CHAINED;
 318     if (obj == CHAIN && game.prop[BEAR] != UNTAMED_BEAR)
 319         spk = STILL_LOCKED;
 320     if (obj == URN)
 321         spk = URN_NOBUDGE;
 322     if (obj == CAVITY)
 323         spk = DOUGHNUT_HOLES;
 324     if (obj == BLOOD)
 325         spk = FEW_DROPS;
 326     if (obj == RUG && game.prop[RUG] == RUG_HOVER)
 327         spk = RUG_HOVERS;
 328     if (obj == SIGN)
 329         spk = HAND_PASSTHROUGH;
 330     if (obj == MESSAG) {
 331         rspeak(REMOVE_MESSAGE);
 332         DESTROY(MESSAG);
 333         return GO_CLEAROBJ;
 334     }
 335     if (game.fixed[obj] != 0) {
 336         rspeak(spk);
 337         return GO_CLEAROBJ;
 338     }
 339     if (obj == WATER ||
 340         obj == OIL) {
 341         if (!HERE(BOTTLE) ||
 342             LIQUID() != obj) {
 343             if (TOTING(BOTTLE) && game.prop[BOTTLE] == EMPTY_BOTTLE)
 344                 return (fill(verb, BOTTLE));
 345             else {
 346                 if (game.prop[BOTTLE] != EMPTY_BOTTLE)
 347                     spk = BOTTLE_FULL;
 348                 if (!TOTING(BOTTLE))
 349                     spk = NO_CONTAINER;
 350                 rspeak(spk);
 351                 return GO_CLEAROBJ;
 352             }
 353         }
 354         obj = BOTTLE;
 355     }
 356
 357     spk = CARRY_LIMIT;
 358     if (game.holdng >= INVLIMIT) {
 359         rspeak(spk);
 360         return GO_CLEAROBJ;
 361     } else if (obj == BIRD && game.prop[BIRD] != BIRD_CAGED && -1 - game.prop[BIRD] != BIRD_CAGED) {
 362         if (game.prop[BIRD] == BIRD_FOREST_UNCAGED) {
 363             DESTROY(BIRD);
 364             rspeak(BIRD_CRAP);
 365             return GO_CLEAROBJ;
 366         }
 367         if (!TOTING(CAGE))
 368             spk = CANNOT_CARRY;
 369         if (TOTING(ROD))
 370             spk = BIRD_EVADES;
 371         if (spk == CANNOT_CARRY ||
 372             spk == BIRD_EVADES) {
 373             rspeak(spk);
 374             return GO_CLEAROBJ;
 375         }
 376         game.prop[BIRD] = BIRD_CAGED;
 377     }
 378     /* FIXME: Arithmetic on state numbers */
 379     if ((obj == BIRD ||
 380          obj == CAGE) &&
 381         (game.prop[BIRD] == BIRD_CAGED ||
 382          -1 - game.prop[BIRD] == 1))
 383         carry(BIRD + CAGE - obj, game.loc);
 384     carry(obj, game.loc);
 385     if (obj == BOTTLE && LIQUID() != 0)
 386         game.place[LIQUID()] = CARRIED;
 387     if (GSTONE(obj) && game.prop[obj] != 0) {
 388         game.prop[obj] = STATE_GROUND;
 389         game.prop[CAVITY] = CAVITY_EMPTY;
 390     }
 391     rspeak(OK_MAN);
 392     return GO_CLEAROBJ;
 393 }
 394
 395 static int chain(token_t verb)
 396 /* Do something to the bear's chain */
 397 {
 398     int spk;
 399     if (verb != LOCK) {
 400         spk = CHAIN_UNLOCKED;
 401         if (game.prop[BEAR] == UNTAMED_BEAR)
 402             spk = BEAR_BLOCKS;
 403         if (game.prop[CHAIN] == CHAIN_HEAP)
 404             spk = ALREADY_UNLOCKED;
 405         if (spk != CHAIN_UNLOCKED) {
 406             rspeak(spk);
 407             return GO_CLEAROBJ;
 408         }
 409         game.prop[CHAIN] = CHAIN_HEAP;
 410         game.fixed[CHAIN] = CHAIN_HEAP;
 411         if (game.prop[BEAR] != BEAR_DEAD)
 412             game.prop[BEAR] = CONTENTED_BEAR;
 413         /* FIXME: Arithmetic on state numbers */
 414         game.fixed[BEAR] = 2 - game.prop[BEAR];
 415     } else {
 416         spk = CHAIN_LOCKED;
 417         if (game.prop[CHAIN] != CHAIN_HEAP)
 418             spk = ALREADY_LOCKED;
 419         if (game.loc != objects[CHAIN].plac)
 420             spk = NO_LOCKSITE;
 421         if (spk != CHAIN_LOCKED) {
 422             rspeak(spk);
 423             return GO_CLEAROBJ;
 424         }
 425         game.prop[CHAIN] = CHAIN_FIXED;
 426         if (TOTING(CHAIN))
 427             drop(CHAIN, game.loc);
 428         game.fixed[CHAIN] = -1;
 429     }
 430     rspeak(spk);
 431     return GO_CLEAROBJ;
 432 }
 433
 434 static int discard(token_t verb, token_t obj, bool just_do_it)
 435 /*  Discard object.  "Throw" also comes here for most objects.  Special cases for
 436  *  bird (might attack snake or dragon) and cage (might contain bird) and vase.
 437  *  Drop coins at vending machine for extra batteries. */
 438 {
 439     int spk = actions[verb].message;
 440     if (!just_do_it) {
 441         if (TOTING(ROD2) && obj == ROD && !TOTING(ROD))
 442             obj = ROD2;
 443         if (!TOTING(obj)) {
 444             rspeak(spk);
 445             return GO_CLEAROBJ;
 446         }
 447         if (obj == BIRD && HERE(SNAKE)) {
 448             rspeak(BIRD_ATTACKS);
 449             if (game.closed)
 450                 return GO_DWARFWAKE;
 451             DESTROY(SNAKE);
 452             /* Set game.prop for use by travel options */
 453             game.prop[SNAKE] = SNAKE_CHASED;
 454
 455         } else if ((GSTONE(obj) && AT(CAVITY) && game.prop[CAVITY] != CAVITY_FULL)) {
 456             rspeak(GEM_FITS);
 457             game.prop[obj] = 1;
 458             game.prop[CAVITY] = CAVITY_FULL;
 459             if (HERE(RUG) && ((obj == EMERALD && game.prop[RUG] != RUG_HOVER) ||
 460                               (obj == RUBY && game.prop[RUG] == RUG_HOVER))) {
 461                 spk = RUG_RISES;
 462                 if (TOTING(RUG))
 463                     spk = RUG_WIGGLES;
 464                 if (obj == RUBY)
 465                     spk = RUG_SETTLES;
 466                 rspeak(spk);
 467                 if (spk != RUG_WIGGLES) {
 468                     /* FIXME: Arithmetic on state numbers */
 469                     int k = 2 - game.prop[RUG];
 470                     game.prop[RUG] = k;
 471                     if (k == 2)
 472                         k = objects[SAPPH].plac;
 473                     move(RUG + NOBJECTS, k);
 474                 }
 475             }
 476         } else if (obj == COINS && HERE(VEND)) {
 477             DESTROY(COINS);
 478             drop(BATTERY, game.loc);
 479             pspeak(BATTERY, look, FRESH_BATTERIES, true);
 480             return GO_CLEAROBJ;
 481         } else if (obj == BIRD && AT(DRAGON) && game.prop[DRAGON] == DRAGON_BARS) {
 482             rspeak(BIRD_BURNT);
 483             DESTROY(BIRD);
 484             return GO_CLEAROBJ;
 485         } else if (obj == BEAR && AT(TROLL)) {
 486             state_change(TROLL, TROLL_GONE);
 487             move(TROLL, LOC_NOWHERE);
 488             move(TROLL + NOBJECTS, LOC_NOWHERE);
 489             move(TROLL2, objects[TROLL].plac);
 490             move(TROLL2 + NOBJECTS, objects[TROLL].fixd);
 491             juggle(CHASM);
 492         } else if (obj != VASE ||
 493                    game.loc == objects[PILLOW].plac) {
 494             rspeak(OK_MAN);
 495         } else {
 496             game.prop[VASE] = VASE_BROKEN;
 497             if (AT(PILLOW))
 498                 game.prop[VASE] = VASE_WHOLE;
 499             pspeak(VASE, look, game.prop[VASE] + 1, true);
 500             if (game.prop[VASE] != VASE_WHOLE)
 501                 game.fixed[VASE] = -1;
 502         }
 503     }
 504     int k = LIQUID();
 505     if (k == obj)
 506         obj = BOTTLE;
 507     if (obj == BOTTLE && k != 0)
 508         game.place[k] = LOC_NOWHERE;
 509     if (obj == CAGE && game.prop[BIRD] == BIRD_CAGED)
 510         drop(BIRD, game.loc);
 511     drop(obj, game.loc);
 512     if (obj != BIRD)
 513         return GO_CLEAROBJ;
 514     game.prop[BIRD] = BIRD_UNCAGED;
 515     if (FOREST(game.loc))
 516         game.prop[BIRD] = BIRD_FOREST_UNCAGED;
 517     return GO_CLEAROBJ;
 518 }
 519
 520 static int drink(token_t verb, token_t obj)
 521 /*  Drink.  If no object, assume water and look for it here.  If water is in
 522  *  the bottle, drink that, else must be at a water loc, so drink stream. */
 523 {
 524     if (obj == NO_OBJECT && LIQLOC(game.loc) != WATER &&
 525         (LIQUID() != WATER || !HERE(BOTTLE))) {
 526         return GO_UNKNOWN;
 527     }
 528
 529     if (obj == BLOOD) {
 530         DESTROY(BLOOD);
 531         state_change(DRAGON, DRAGON_BLOODLESS);
 532         game.blooded = true;
 533         return GO_CLEAROBJ;
 534     }
 535
 536     if (obj != NO_OBJECT && obj != WATER) {
 537         rspeak(RIDICULOUS_ATTEMPT);
 538         return GO_CLEAROBJ;
 539     }
 540     if (LIQUID() == WATER && HERE(BOTTLE)) {
 541         game.prop[BOTTLE] = EMPTY_BOTTLE;
 542         game.place[WATER] = LOC_NOWHERE;
 543         rspeak(BOTTLE_EMPTY);
 544         return GO_CLEAROBJ;
 545     }
 546
 547     rspeak(actions[verb].message);
 548     return GO_CLEAROBJ;
 549 }
 550
 551 static int eat(token_t verb, token_t obj)
 552 /*  Eat.  Intransitive: assume food if present, else ask what.  Transitive: food
 553  *  ok, some things lose appetite, rest are ridiculous. */
 554 {
 555     if (obj == INTRANSITIVE) {
 556         if (!HERE(FOOD))
 557             return GO_UNKNOWN;
 558         DESTROY(FOOD);
 559         rspeak(THANKS_DELICIOUS);
 560         return GO_CLEAROBJ;
 561     }
 562     if (obj == FOOD) {
 563         DESTROY(FOOD);
 564         rspeak(THANKS_DELICIOUS);
 565         return GO_CLEAROBJ;
 566     }
 567     if (obj == BIRD ||
 568         obj == SNAKE ||
 569         obj == CLAM ||
 570         obj == OYSTER ||
 571         obj == DWARF ||
 572         obj == DRAGON ||
 573         obj == TROLL ||
 574         obj == BEAR ||
 575         obj == OGRE) {
 576         rspeak(LOST_APPETITE);
 577         return GO_CLEAROBJ;
 578     }
 579     rspeak(actions[verb].message);
 580     return GO_CLEAROBJ;
 581 }
 582
 583 static int extinguish(token_t verb, int obj)
 584 /* Extinguish.  Lamp, urn, dragon/volcano (nice try). */
 585 {
 586     if (obj == INTRANSITIVE) {
 587         if (HERE(LAMP) && game.prop[LAMP] == LAMP_BRIGHT)
 588             obj = LAMP;
 589         if (HERE(URN) && game.prop[URN] == URN_LIT)
 590             obj = URN;
 591         if (obj == INTRANSITIVE)
 592             return GO_UNKNOWN;
 593     }
 594
 595     if (obj == URN) {
 596         if (game.prop[URN] != URN_EMPTY) {
 597             state_change(URN, URN_DARK);
 598         } else {
 599             pspeak(URN, change, URN_DARK, true);
 600         }
 601         return GO_CLEAROBJ;
 602     }
 603
 604     if (obj == LAMP) {
 605         state_change(LAMP, LAMP_DARK);
 606         rspeak(DARK(game.loc) ?
 607                PITCH_DARK :
 608                NO_MESSAGE);
 609         return GO_CLEAROBJ;
 610     }
 611
 612     if (obj == DRAGON ||
 613         obj == VOLCANO) {
 614         rspeak(BEYOND_POWER);
 615         return GO_CLEAROBJ;
 616     }
 617
 618     rspeak(actions[verb].message);
 619     return GO_CLEAROBJ;
 620 }
 621
 622 static int feed(token_t verb, token_t obj)
 623 /*  Feed.  If bird, no seed.  Snake, dragon, troll: quip.  If dwarf, make him
 624  *  mad.  Bear, special. */
 625 {
 626     int spk = actions[verb].message;
 627     if (obj == BIRD) {
 628         rspeak(BIRD_PINING);
 629         return GO_CLEAROBJ;
 630     } else if (obj == SNAKE ||
 631                obj == DRAGON ||
 632                obj == TROLL) {
 633         spk = NOTHING_EDIBLE;
 634         if (obj == DRAGON && game.prop[DRAGON] != DRAGON_BARS)
 635             spk = RIDICULOUS_ATTEMPT;
 636         if (obj == TROLL)
 637             spk = TROLL_VICES;
 638         if (obj == SNAKE && !game.closed && HERE(BIRD)) {
 639             DESTROY(BIRD);
 640             spk = BIRD_DEVOURED;
 641         }
 642     } else if (obj == DWARF) {
 643         if (HERE(FOOD)) {
 644             game.dflag += 2;
 645             spk = REALLY_MAD;
 646         }
 647     } else if (obj == BEAR) {
 648         if (game.prop[BEAR] == UNTAMED_BEAR)
 649             spk = NOTHING_EDIBLE;
 650         if (game.prop[BEAR] == BEAR_DEAD)
 651             spk = RIDICULOUS_ATTEMPT;
 652         if (HERE(FOOD)) {
 653             DESTROY(FOOD);
 654             game.prop[BEAR] = SITTING_BEAR;
 655             game.fixed[AXE] = 0;
 656             game.prop[AXE] = 0;
 657             spk = BEAR_TAMED;
 658         }
 659     } else if (obj == OGRE) {
 660         if (HERE(FOOD))
 661             spk = OGRE_FULL;
 662     } else {
 663         spk = AM_GAME;
 664     }
 665     rspeak(spk);
 666     return GO_CLEAROBJ;
 667 }
 668
 669 int fill(token_t verb, token_t obj)
 670 /*  Fill.  Bottle or urn must be empty, and liquid available.  (Vase
 671  *  is nasty.) */
 672 {
 673     if (obj == VASE) {
 674         if (LIQLOC(game.loc) == NO_OBJECT) {
 675             rspeak(FILL_INVALID);
 676             return GO_CLEAROBJ;
 677         }
 678         if (!TOTING(VASE)) {
 679             rspeak(ARENT_CARRYING);
 680             return GO_CLEAROBJ;
 681         }
 682         rspeak(SHATTER_VASE);
 683         game.prop[VASE] = VASE_BROKEN;
 684         game.fixed[VASE] = -1;
 685         return (discard(verb, obj, true));
 686     }
 687
 688     if (obj == URN) {
 689         if (game.prop[URN] != URN_EMPTY) {
 690             rspeak(FULL_URN);
 691             return GO_CLEAROBJ;
 692         }
 693         if (!HERE(BOTTLE)) {
 694             rspeak(FILL_INVALID);
 695             return GO_CLEAROBJ;
 696         }
 697         int k = LIQUID();
 698         switch (k) {
 699         case WATER:
 700             game.prop[BOTTLE] = EMPTY_BOTTLE;
 701             rspeak(WATER_URN);
 702             break;
 703         case OIL:
 704             game.prop[URN] = URN_DARK;
 705             game.prop[BOTTLE] = EMPTY_BOTTLE;
 706             rspeak(OIL_URN);
 707             break;
 708         case NO_OBJECT:
 709         default:
 710             rspeak(FILL_INVALID);
 711             return GO_CLEAROBJ;
 712         }
 713         game.place[k] = LOC_NOWHERE;
 714         return GO_CLEAROBJ;
 715     }
 716     if (obj != NO_OBJECT && obj != BOTTLE) {
 717         rspeak(actions[verb].message);
 718         return GO_CLEAROBJ;
 719     }
 720     if (obj == NO_OBJECT && !HERE(BOTTLE))
 721         return GO_UNKNOWN;
 722
 723     if (HERE(URN) && game.prop[URN] != URN_EMPTY) {
 724         rspeak(URN_NOPOUR);
 725         return GO_CLEAROBJ;
 726     }
 727     if (LIQUID() != NO_OBJECT) {
 728         rspeak(BOTTLE_FULL);
 729         return GO_CLEAROBJ;
 730     }
 731     if (LIQLOC(game.loc) == NO_OBJECT) {
 732         rspeak(NO_LIQUID);
 733         return GO_CLEAROBJ;
 734     }
 735
 736     game.prop[BOTTLE] = (LIQLOC(game.loc) == OIL) ? OIL_BOTTLE : WATER_BOTTLE;
 737     if (TOTING(BOTTLE))
 738         game.place[LIQUID()] = CARRIED;
 739     if (LIQUID() == OIL)
 740         rspeak(BOTTLED_OIL);
 741     else
 742         rspeak(BOTTLED_WATER);
 743     return GO_CLEAROBJ;
 744 }
 745
 746 static int find(token_t verb, token_t obj)
 747 /* Find.  Might be carrying it, or it might be here.  Else give caveat. */
 748 {
 749     if (TOTING(obj)) {
 750         rspeak(ALREADY_CARRYING);
 751         return GO_CLEAROBJ;
 752     }
 753
 754     if (game.closed) {
 755         rspeak(NEEDED_NEARBY);
 756         return GO_CLEAROBJ;
 757     }
 758
 759     if (AT(obj) ||
 760         (LIQUID() == obj && AT(BOTTLE)) ||
 761         obj == LIQLOC(game.loc) ||
 762         (obj == DWARF && atdwrf(game.loc) > 0)) {
 763         rspeak(YOU_HAVEIT);
 764         return GO_CLEAROBJ;
 765     }
 766
 767
 768     rspeak(actions[verb].message);
 769     return GO_CLEAROBJ;
 770 }
 771
 772 static int fly(token_t verb, token_t obj)
 773 /* Fly.  Snide remarks unless hovering rug is here. */
 774 {
 775     if (obj == INTRANSITIVE) {
 776         if (!HERE(RUG)) {
 777             rspeak(FLAP_ARMS);
 778             return GO_CLEAROBJ;
 779         }
 780         if (game.prop[RUG] != RUG_HOVER) {
 781             rspeak(RUG_NOTHING2);
 782             return GO_CLEAROBJ;
 783         }
 784         obj = RUG;
 785     }
 786
 787     if (obj != RUG) {
 788         rspeak(actions[verb].message);
 789         return GO_CLEAROBJ;
 790     }
 791     if (game.prop[RUG] != RUG_HOVER) {
 792         rspeak(RUG_NOTHING1);
 793         return GO_CLEAROBJ;
 794     }
 795     game.oldlc2 = game.oldloc;
 796     game.oldloc = game.loc;
 797     /* FIXME: Arithmetic on location values */
 798     game.newloc = game.place[RUG] + game.fixed[RUG] - game.loc;
 799
 800     if (game.prop[SAPPH] >= 0) {
 801         rspeak(RUG_RETURNS);
 802     } else {
 803         rspeak(RUG_GOES);
 804     }
 805     return GO_TERMINATE;
 806 }
 807
 808 static int inven(void)
 809 /* Inventory. If object, treat same as find.  Else report on current burden. */
 810 {
 811     bool empty = true;
 812     for (int i = 1; i <= NOBJECTS; i++) {
 813         if (i == BEAR ||
 814             !TOTING(i))
 815             continue;
 816         if (empty) {
 817             rspeak(NOW_HOLDING);
 818             empty = false;
 819         }
 820         pspeak(i, touch, -1, false);
 821     }
 822     if (TOTING(BEAR))
 823         rspeak(TAME_BEAR);
 824     if (empty)
 825         rspeak(NO_CARRY);
 826     return GO_CLEAROBJ;
 827 }
 828
 829 static int light(token_t verb, token_t obj)
 830 /*  Light.  Applicable only to lamp and urn. */
 831 {
 832     if (obj == INTRANSITIVE) {
 833         if (HERE(LAMP) && game.prop[LAMP] == LAMP_DARK && game.limit >= 0)
 834             obj = LAMP;
 835         if (HERE(URN) && game.prop[URN] == URN_DARK)
 836             obj =  URN;
 837         if (obj == INTRANSITIVE ||
 838             (HERE(LAMP) && game.prop[LAMP] == LAMP_DARK && game.limit >= 0 &&
 839              HERE(URN) && game.prop[URN] == URN_DARK))
 840             return GO_UNKNOWN;
 841     }
 842
 843     if (obj == URN) {
 844         state_change(URN, game.prop[URN] == URN_EMPTY ?
 845                      URN_EMPTY :
 846                      URN_LIT);
 847         return GO_CLEAROBJ;
 848     } else {
 849         if (obj != LAMP) {
 850             rspeak(actions[verb].message);
 851             return GO_CLEAROBJ;
 852         }
 853         if (game.limit < 0) {
 854             rspeak(LAMP_OUT);
 855             return GO_CLEAROBJ;
 856         }
 857         state_change(LAMP, LAMP_BRIGHT);
 858         if (game.wzdark)
 859             return GO_TOP;
 860         else
 861             return GO_CLEAROBJ;
 862     }
 863 }
 864
 865 static int listen(void)
 866 /*  Listen.  Intransitive only.  Print stuff based on objsnd/locsnd. */
 867 {
 868     long sound = locations[game.loc].sound;
 869     if (sound != SILENT) {
 870         rspeak(sound);
 871         if (!locations[game.loc].loud)
 872             rspeak(NO_MESSAGE);
 873         return GO_CLEAROBJ;
 874     }
 875     for (int i = 1; i <= NOBJECTS; i++) {
 876         if (!HERE(i) ||
 877             objects[i].sounds[0] == NULL ||
 878             game.prop[i] < 0)
 879             continue;
 880         int mi =  game.prop[i];
 881         if (i == BIRD)
 882             mi += 3 * game.blooded;
 883         long packed_zzword = token_to_packed(game.zzword);
 884         pspeak(i, hear, mi, true, packed_zzword);
 885         rspeak(NO_MESSAGE);
 886         /* FIXME: Magic number, sensitive to bird state logic */
 887         if (i == BIRD && game.prop[i] == 5)
 888             DESTROY(BIRD);
 889         return GO_CLEAROBJ;
 890     }
 891     rspeak(ALL_SILENT);
 892     return GO_CLEAROBJ;
 893 }
 894
 895 static int lock(token_t verb, token_t obj)
 896 /* Lock, unlock, no object given.  Assume various things if present. */
 897 {
 898     if (obj == INTRANSITIVE) {
 899         if (HERE(CLAM))
 900             obj = CLAM;
 901         if (HERE(OYSTER))
 902             obj = OYSTER;
 903         if (AT(DOOR))
 904             obj = DOOR;
 905         if (AT(GRATE))
 906             obj = GRATE;
 907         if (HERE(CHAIN))
 908             obj = CHAIN;
 909         if (obj == INTRANSITIVE) {
 910             rspeak(NOTHING_LOCKED);
 911             return GO_CLEAROBJ;
 912         }
 913     }
 914
 915     /*  Lock, unlock object.  Special stuff for opening clam/oyster
 916      *  and for chain. */
 917     if (obj == GRATE ||
 918         obj == CHAIN) {
 919         if (HERE(KEYS)) {
 920             if (obj == CHAIN)
 921                 return chain(verb);
 922             if (game.closng) {
 923                 rspeak(EXIT_CLOSED);
 924                 if (!game.panic)
 925                     game.clock2 = PANICTIME;
 926                 game.panic = true;
 927                 return GO_CLEAROBJ ;
 928             } else {
 929                 state_change(GRATE, (verb == LOCK) ?
 930                              GRATE_CLOSED :
 931                              GRATE_OPEN);
 932                 return GO_CLEAROBJ;
 933             }
 934         }
 935         rspeak(NO_KEYS);
 936         return GO_CLEAROBJ;
 937     }
 938
 939     switch (obj) {
 940     case CLAM:
 941     case OYSTER:
 942         return bivalve(verb, obj);
 943     case DOOR:
 944         rspeak((game.prop[DOOR] == DOOR_UNRUSTED) ? OK_MAN : RUSTY_DOOR);
 945         break;
 946     case CAGE:
 947         rspeak( NO_LOCK);
 948         break;
 949     case KEYS:
 950         rspeak(CANNOT_UNLOCK);
 951         break;
 952     default:
 953         rspeak(actions[verb].message);
 954     }
 955
 956     return GO_CLEAROBJ;
 957 }
 958
 959 static int pour(token_t verb, token_t obj)
 960 /*  Pour.  If no object, or object is bottle, assume contents of bottle.
 961  *  special tests for pouring water or oil on plant or rusty door. */
 962 {
 963     if (obj == BOTTLE ||
 964         obj == NO_OBJECT)
 965         obj = LIQUID();
 966     if (obj == NO_OBJECT)
 967         return GO_UNKNOWN;
 968     if (!TOTING(obj)) {
 969         rspeak(actions[verb].message);
 970         return GO_CLEAROBJ;
 971     }
 972
 973     if (obj != OIL && obj != WATER) {
 974         rspeak(CANT_POUR);
 975         return GO_CLEAROBJ;
 976     }
 977     if (HERE(URN) && game.prop[URN] == URN_EMPTY)
 978         return fill(verb, URN);
 979     game.prop[BOTTLE] = EMPTY_BOTTLE;
 980     game.place[obj] = LOC_NOWHERE;
 981     if (!(AT(PLANT) ||
 982           AT(DOOR))) {
 983         rspeak(GROUND_WET);
 984         return GO_CLEAROBJ;
 985     }
 986     if (!AT(DOOR)) {
 987         if (obj == WATER) {
 988             /* cycle through the three plant states */
 989             state_change(PLANT, MOD(game.prop[PLANT] + 1, 3));
 990             game.prop[PLANT2] = game.prop[PLANT];
 991             return GO_MOVE;
 992         } else {
 993             rspeak(SHAKING_LEAVES);
 994             return GO_CLEAROBJ;
 995         }
 996     } else {
 997         state_change(DOOR, (obj == OIL) ?
 998                      DOOR_UNRUSTED :
 999                      DOOR_RUSTED);
1000         return GO_CLEAROBJ;
1001     }
1002 }
1003
1004 static int quit(void)
1005 /*  Quit.  Intransitive only.  Verify intent and exit if that's what he wants. */
1006 {
1007     if (yes(arbitrary_messages[REALLY_QUIT], arbitrary_messages[OK_MAN], arbitrary_messages[OK_MAN]))
1008         terminate(quitgame);
1009     return GO_CLEAROBJ;
1010 }
1011
1012 static int read(struct command_t command)
1013 /*  Read.  Print stuff based on objtxt.  Oyster (?) is special case. */
1014 {
1015     if (command.obj == INTRANSITIVE) {
1016         command.obj = 0;
1017         for (int i = 1; i <= NOBJECTS; i++) {
1018             if (HERE(i) && objects[i].texts[0] != NULL && game.prop[i] >= 0)
1019                 command.obj = command.obj * NOBJECTS + i;
1020         }
1021         if (command.obj > NOBJECTS ||
1022             command.obj == 0 ||
1023             DARK(game.loc))
1024             return GO_UNKNOWN;
1025     }
1026
1027     if (DARK(game.loc)) {
1028         sspeak(NO_SEE, command.raw1);
1029     } else if (command.obj == OYSTER && !game.clshnt && game.closed) {
1030         game.clshnt = yes(arbitrary_messages[CLUE_QUERY], arbitrary_messages[WAYOUT_CLUE], arbitrary_messages[OK_MAN]);
1031     } else if (objects[command.obj].texts[0] == NULL ||
1032                game.prop[command.obj] < 0) {
1033         rspeak(actions[command.verb].message);
1034     } else
1035         pspeak(command.obj, study, game.prop[command.obj], true);
1036     return GO_CLEAROBJ;
1037 }
1038
1039 static int reservoir(void)
1040 /*  Z'ZZZ (word gets recomputed at startup; different each game). */
1041 {
1042     /* FIXME: Arithmetic on state numbers */
1043     if (!AT(RESER) && game.loc != game.fixed[RESER] - 1) {
1044         rspeak(NOTHING_HAPPENS);
1045         return GO_CLEAROBJ;
1046     } else {
1047         /* FIXME: Arithmetic on state numbers */
1048         pspeak(RESER, look, game.prop[RESER] + 1, true);
1049         game.prop[RESER] = 1 - game.prop[RESER];
1050         if (AT(RESER))
1051             return GO_CLEAROBJ;
1052         else {
1053             game.oldlc2 = game.loc;
1054             game.newloc = LOC_NOWHERE;
1055             rspeak(NOT_BRIGHT);
1056             return GO_TERMINATE;
1057         }
1058     }
1059 }
1060
1061 static int rub(token_t verb, token_t obj)
1062 /* Rub.  Yields various snide remarks except for lit urn. */
1063 {
1064     if (obj == URN && game.prop[URN] == URN_LIT) {
1065         DESTROY(URN);
1066         drop(AMBER, game.loc);
1067         game.prop[AMBER] = AMBER_IN_ROCK;
1068         --game.tally;
1069         drop(CAVITY, game.loc);
1070         rspeak(URN_GENIES);
1071     } else if (obj != LAMP) {
1072         rspeak(PECULIAR_NOTHING);
1073     } else {
1074         rspeak(actions[verb].message);
1075     }
1076     return GO_CLEAROBJ;
1077 }
1078
1079 static int say(struct command_t *command)
1080 /* Say.  Echo WD2 (or WD1 if no WD2 (SAY WHAT?, etc.).)  Magic words override. */
1081 {
1082     if (command->wd2 > 0) {
1083         command->wd1 = command->wd2;
1084         strcpy(command->raw1, command->raw2);
1085     }
1086     char word1[TOKLEN + 1];
1087     packed_to_token(command->wd1, word1);
1088     int wd = (int) get_vocab_id(word1);
1089     /* FIXME: magic numbers */
1090     if (wd == MOTION_WORD(XYZZY) ||
1091         wd == MOTION_WORD(PLUGH) ||
1092         wd == MOTION_WORD(PLOVER) ||
1093         wd == ACTION_WORD(GIANTWORDS) ||
1094         wd == ACTION_WORD(PART)) {
1095         /* FIXME: scribbles on the interpreter's command block */
1096         wordclear(&command->wd2);
1097         return GO_LOOKUP;
1098     }
1099     sspeak(OKEY_DOKEY, command->raw1);
1100     return GO_CLEAROBJ;
1101 }
1102
1103 static int throw_support(long spk)
1104 {
1105     rspeak(spk);
1106     drop(AXE, game.loc);
1107     return GO_MOVE;
1108 }
1109
1110 static int throw (struct command_t *command)
1111 /*  Throw.  Same as discard unless axe.  Then same as attack except
1112  *  ignore bird, and if dwarf is present then one might be killed.
1113  *  (Only way to do so!)  Axe also special for dragon, bear, and
1114  *  troll.  Treasures special for troll. */
1115 {
1116     if (TOTING(ROD2) && command->obj == ROD && !TOTING(ROD))
1117         command->obj = ROD2;
1118     if (!TOTING(command->obj)) {
1119         rspeak(actions[command->verb].message);
1120         return GO_CLEAROBJ;
1121     }
1122     if (objects[command->obj].is_treasure && AT(TROLL)) {
1123         /*  Snarf a treasure for the troll. */
1124         drop(command->obj, LOC_NOWHERE);
1125         move(TROLL, LOC_NOWHERE);
1126         move(TROLL + NOBJECTS, LOC_NOWHERE);
1127         drop(TROLL2, objects[TROLL].plac);
1128         drop(TROLL2 + NOBJECTS, objects[TROLL].fixd);
1129         juggle(CHASM);
1130         rspeak(TROLL_SATISFIED);
1131         return GO_CLEAROBJ;
1132     }
1133     if (command->obj == FOOD && HERE(BEAR)) {
1134         /* But throwing food is another story. */
1135         command->obj = BEAR;
1136         return (feed(command->verb, command->obj));
1137     }
1138     if (command->obj != AXE)
1139         return (discard(command->verb, command->obj, false));
1140     else {
1141         if (atdwrf(game.loc) <= 0) {
1142             if (AT(DRAGON) && game.prop[DRAGON] == DRAGON_BARS)
1143                 return throw_support(DRAGON_SCALES);
1144             if (AT(TROLL))
1145                 return throw_support(TROLL_RETURNS);
1146             else if (AT(OGRE))
1147                 return throw_support(OGRE_DODGE);
1148             else if (HERE(BEAR) && game.prop[BEAR] == UNTAMED_BEAR) {
1149                 /* This'll teach him to throw the axe at the bear! */
1150                 drop(AXE, game.loc);
1151                 game.fixed[AXE] = -1;
1152                 juggle(BEAR);
1153                 state_change(AXE, AXE_LOST);
1154                 return GO_CLEAROBJ;
1155             }
1156             command->obj = NO_OBJECT;
1157             return (attack(command));
1158         }
1159
1160         if (randrange(NDWARVES + 1) < game.dflag) {
1161             return throw_support(DWARF_DODGES);
1162         } else {
1163             long i = atdwrf(game.loc);
1164             game.dseen[i] = false;
1165             game.dloc[i] = LOC_NOWHERE;
1166             return throw_support((++game.dkill == 1) ?
1167                                  DWARF_SMOKE :
1168                                  KILLED_DWARF);
1169         }
1170     }
1171 }
1172
1173 static int wake(token_t verb, token_t obj)
1174 /* Wake.  Only use is to disturb the dwarves. */
1175 {
1176     if (obj != DWARF ||
1177         !game.closed) {
1178         rspeak(actions[verb].message);
1179         return GO_CLEAROBJ;
1180     } else {
1181         rspeak(PROD_DWARF);
1182         return GO_DWARFWAKE;
1183     }
1184 }
1185
1186 static int wave(token_t verb, token_t obj)
1187 /* Wave.  No effect unless waving rod at fissure or at bird. */
1188 {
1189     if (obj != ROD ||
1190         !TOTING(obj) ||
1191         (!HERE(BIRD) &&
1192          (game.closng ||
1193           !AT(FISSURE)))) {
1194         rspeak(((!TOTING(obj)) && (obj != ROD ||
1195                                    !TOTING(ROD2))) ?
1196                ARENT_CARRYING :
1197                actions[verb].message);
1198         return GO_CLEAROBJ;
1199     }
1200
1201     if (game.prop[BIRD] == BIRD_UNCAGED && game.loc == game.place[STEPS] && game.prop[JADE] < 0) {
1202         drop(JADE, game.loc);
1203         game.prop[JADE] = 0;
1204         --game.tally;
1205         rspeak(NECKLACE_FLY);
1206         return GO_CLEAROBJ;
1207     } else {
1208         if (game.closed) {
1209             rspeak((game.prop[BIRD] == BIRD_CAGED) ?
1210                    CAGE_FLY :
1211                    FREE_FLY);
1212             return GO_DWARFWAKE;
1213         }
1214         if (game.closng ||
1215             !AT(FISSURE)) {
1216             rspeak((game.prop[BIRD] == BIRD_CAGED) ?
1217                    CAGE_FLY :
1218                    FREE_FLY);
1219             return GO_CLEAROBJ;
1220         }
1221         if (HERE(BIRD))
1222             rspeak((game.prop[BIRD] == BIRD_CAGED) ?
1223                    CAGE_FLY :
1224                    FREE_FLY);
1225
1226         /* FIXME: Arithemetic on property values */
1227         game.prop[FISSURE] = 1 - game.prop[FISSURE];
1228         pspeak(FISSURE, look, 2 - game.prop[FISSURE], true);
1229         return GO_CLEAROBJ;
1230     }
1231 }
1232
1233 int action(struct command_t *command)
1234 /*  Analyse a verb.  Remember what it was, go back for object if second word
1235  *  unless verb is "say", which snarfs arbitrary second word.
1236  */
1237 {
1238     if (command->part == unknown) {
1239         /*  Analyse an object word.  See if the thing is here, whether
1240          *  we've got a verb yet, and so on.  Object must be here
1241          *  unless verb is "find" or "invent(ory)" (and no new verb
1242          *  yet to be analysed).  Water and oil are also funny, since
1243          *  they are never actually dropped at any location, but might
1244          *  be here inside the bottle or urn or as a feature of the
1245          *  location. */
1246         if (HERE(command->obj))
1247             /* FALL THROUGH */;
1248         else if (command->obj == GRATE) {
1249             if (game.loc == LOC_START ||
1250                 game.loc == LOC_VALLEY ||
1251                 game.loc == LOC_SLIT) {
1252                 command->obj = DPRSSN;
1253             }
1254             if (game.loc == LOC_COBBLE ||
1255                 game.loc == LOC_DEBRIS ||
1256                 game.loc == LOC_AWKWARD ||
1257                 game.loc == LOC_BIRD ||
1258                 game.loc == LOC_PITTOP) {
1259                 command->obj = ENTRNC;
1260             }
1261         } else if (command->obj == DWARF && atdwrf(game.loc) > 0)
1262             /* FALL THROUGH */;
1263         else if ((LIQUID() == command->obj && HERE(BOTTLE)) ||
1264                  command->obj == LIQLOC(game.loc))
1265             /* FALL THROUGH */;
1266         else if (command->obj == OIL && HERE(URN) && game.prop[URN] != 0) {
1267             command->obj = URN;
1268             /* FALL THROUGH */;
1269         } else if (command->obj == PLANT && AT(PLANT2) && game.prop[PLANT2] != 0) {
1270             command->obj = PLANT2;
1271             /* FALL THROUGH */;
1272         } else if (command->obj == KNIFE && game.knfloc == game.loc) {
1273             game.knfloc = -1;
1274             rspeak(KNIVES_VANISH);
1275             return GO_CLEAROBJ;
1276         } else if (command->obj == ROD && HERE(ROD2)) {
1277             command->obj = ROD2;
1278             /* FALL THROUGH */;
1279         } else if ((command->verb == FIND ||
1280                     command->verb == INVENTORY) && command->wd2 <= 0)
1281             /* FALL THROUGH */;
1282         else {
1283             sspeak(NO_SEE, command->raw1);
1284             return GO_CLEAROBJ;
1285         }
1286
1287         if (command->wd2 > 0)
1288             return GO_WORD2;
1289         if (command->verb != 0)
1290             command->part = transitive;
1291     }
1292
1293     switch (command->part) {
1294     case intransitive:
1295         if (command->wd2 > 0 && command->verb != SAY)
1296             return GO_WORD2;
1297         if (command->verb == SAY)
1298             command->obj = command->wd2;
1299         if (command->obj == 0 ||
1300             command->obj == INTRANSITIVE) {
1301             /*  Analyse an intransitive verb (ie, no object given yet). */
1302             switch (command->verb) {
1303             case CARRY:
1304                 return vcarry(command->verb, INTRANSITIVE);
1305             case  DROP:
1306                 return GO_UNKNOWN;
1307             case  SAY:
1308                 return GO_UNKNOWN;
1309             case  UNLOCK:
1310                 return lock(command->verb, INTRANSITIVE);
1311             case  NOTHING: {
1312                 rspeak(OK_MAN);
1313                 return (GO_CLEAROBJ);
1314             }
1315             case  LOCK:
1316                 return lock(command->verb, INTRANSITIVE);
1317             case  LIGHT:
1318                 return light(command->verb, INTRANSITIVE);
1319             case  EXTINGUISH:
1320                 return extinguish(command->verb, INTRANSITIVE);
1321             case  WAVE:
1322                 return GO_UNKNOWN;
1323             case  TAME:
1324                 return GO_UNKNOWN;
1325             case GO: {
1326                 rspeak(actions[command->verb].message);
1327                 return GO_CLEAROBJ;
1328             }
1329             case ATTACK:
1330                 return attack(command);
1331             case POUR:
1332                 return pour(command->verb, command->obj);
1333             case EAT:
1334                 return eat(command->verb, INTRANSITIVE);
1335             case DRINK:
1336                 return drink(command->verb, command->obj);
1337             case RUB:
1338                 return GO_UNKNOWN;
1339             case THROW:
1340                 return GO_UNKNOWN;
1341             case QUIT:
1342                 return quit();
1343             case FIND:
1344                 return GO_UNKNOWN;
1345             case INVENTORY:
1346                 return inven();
1347             case FEED:
1348                 return GO_UNKNOWN;
1349             case FILL:
1350                 return fill(command->verb, command->obj);
1351             case BLAST:
1352                 blast();
1353                 return GO_CLEAROBJ;
1354             case SCORE:
1355                 score(scoregame);
1356                 return GO_CLEAROBJ;
1357             case GIANTWORDS:
1358                 return bigwords(command->wd1);
1359             case BRIEF:
1360                 return brief();
1361             case READ:
1362                 command->obj = INTRANSITIVE;
1363                 return read(*command);
1364             case BREAK:
1365                 return GO_UNKNOWN;
1366             case WAKE:
1367                 return GO_UNKNOWN;
1368             case SAVE:
1369                 return suspend();
1370             case RESUME:
1371                 return resume();
1372             case FLY:
1373                 return fly(command->verb, INTRANSITIVE);
1374             case LISTEN:
1375                 return listen();
1376             case PART:
1377                 return reservoir();
1378             default:
1379                 BUG(INTRANSITIVE_ACTION_VERB_EXCEEDS_GOTO_LIST); // LCOV_EXCL_LINE
1380             }
1381         }
1382     /* FALLTHRU */
1383     case transitive:
1384         /*  Analyse a transitive verb. */
1385         switch (command->verb) {
1386         case  CARRY:
1387             return vcarry(command->verb, command->obj);
1388         case  DROP:
1389             return discard(command->verb, command->obj, false);
1390         case  SAY:
1391             return say(command);
1392         case  UNLOCK:
1393             return lock(command->verb, command->obj);
1394         case  NOTHING: {
1395             rspeak(OK_MAN);
1396             return (GO_CLEAROBJ);
1397         }
1398         case  LOCK:
1399             return lock(command->verb, command->obj);
1400         case LIGHT:
1401             return light(command->verb, command->obj);
1402         case EXTINGUISH:
1403             return extinguish(command->verb, command->obj);
1404         case WAVE:
1405             return wave(command->verb, command->obj);
1406         case TAME: {
1407             rspeak(actions[command->verb].message);
1408             return GO_CLEAROBJ;
1409         }
1410         case GO: {
1411             rspeak(actions[command->verb].message);
1412             return GO_CLEAROBJ;
1413         }
1414         case ATTACK:
1415             return attack(command);
1416         case POUR:
1417             return pour(command->verb, command->obj);
1418         case EAT:
1419             return eat(command->verb, command->obj);
1420         case DRINK:
1421             return drink(command->verb, command->obj);
1422         case RUB:
1423             return rub(command->verb, command->obj);
1424         case THROW:
1425             return throw (command);
1426         case QUIT: {
1427             rspeak(actions[command->verb].message);
1428             return GO_CLEAROBJ;
1429         }
1430         case FIND:
1431             return find(command->verb, command->obj);
1432         case INVENTORY:
1433             return find(command->verb, command->obj);
1434         case FEED:
1435             return feed(command->verb, command->obj);
1436         case FILL:
1437             return fill(command->verb, command->obj);
1438         case BLAST:
1439             blast();
1440             return GO_CLEAROBJ;
1441         case SCORE: {
1442             rspeak(actions[command->verb].message);
1443             return GO_CLEAROBJ;
1444         }
1445         case GIANTWORDS: {
1446             rspeak(actions[command->verb].message);
1447             return GO_CLEAROBJ;
1448         }
1449         case BRIEF: {
1450             rspeak(actions[command->verb].message);
1451             return GO_CLEAROBJ;
1452         }
1453         case READ:
1454             return read(*command);
1455         case BREAK:
1456             return vbreak(command->verb, command->obj);
1457         case WAKE:
1458             return wake(command->verb, command->obj);
1459         case SAVE: {
1460             rspeak(actions[command->verb].message);
1461             return GO_CLEAROBJ;
1462         }
1463         case RESUME: {
1464             rspeak(actions[command->verb].message);
1465             return GO_CLEAROBJ;
1466         }
1467         case FLY:
1468             return fly(command->verb, command->obj);
1469         case LISTEN: {
1470             rspeak(actions[command->verb].message);
1471             return GO_CLEAROBJ;
1472         }
1473         case PART:
1474             return reservoir();
1475         default:
1476             BUG(TRANSITIVE_ACTION_VERB_EXCEEDS_GOTO_LIST); // LCOV_EXCL_LINE
1477         }
1478     case unknown:
1479         /* Unknown verb, couldn't deduce object - might need hint */
1480         sspeak(WHAT_DO, command->raw1);
1481         return GO_CHECKHINT;
1482     default:
1483         BUG(SPEECHPART_NOT_TRANSITIVE_OR_INTRANSITIVE_OR_UNKNOWN); // LCOV_EXCL_LINE
1484     }
1485 }