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 && (LIQUID() != WATER ||
 525             !HERE(BOTTLE)))
 526         return GO_UNKNOWN;
 527     if (obj != BLOOD) {
 528         if (obj != NO_OBJECT && obj != WATER) {
 529             rspeak(RIDICULOUS_ATTEMPT);
 530         } else if (LIQUID() == WATER && HERE(BOTTLE)) {
 531             game.prop[BOTTLE] = EMPTY_BOTTLE;
 532             game.place[WATER] = LOC_NOWHERE;
 533             rspeak(BOTTLE_EMPTY);
 534         } else {
 535             rspeak(actions[verb].message);
 536         }
 537     } else {
 538         DESTROY(BLOOD);
 539         state_change(DRAGON, DRAGON_BLOODLESS);
 540         game.blooded = true;
 541     }
 542     return GO_CLEAROBJ;
 543 }
 544
 545 static int eat(token_t verb, token_t obj)
 546 /*  Eat.  Intransitive: assume food if present, else ask what.  Transitive: food
 547  *  ok, some things lose appetite, rest are ridiculous. */
 548 {
 549     if (obj == INTRANSITIVE) {
 550         if (!HERE(FOOD))
 551             return GO_UNKNOWN;
 552         DESTROY(FOOD);
 553         rspeak(THANKS_DELICIOUS);
 554         return GO_CLEAROBJ;
 555     }
 556     if (obj == FOOD) {
 557         DESTROY(FOOD);
 558         rspeak(THANKS_DELICIOUS);
 559         return GO_CLEAROBJ;
 560     }
 561     if (obj == BIRD ||
 562         obj == SNAKE ||
 563         obj == CLAM ||
 564         obj == OYSTER ||
 565         obj == DWARF ||
 566         obj == DRAGON ||
 567         obj == TROLL ||
 568         obj == BEAR ||
 569         obj == OGRE) {
 570         rspeak(LOST_APPETITE);
 571         return GO_CLEAROBJ;
 572     }
 573     rspeak(actions[verb].message);
 574     return GO_CLEAROBJ;
 575 }
 576
 577 static int extinguish(token_t verb, int obj)
 578 /* Extinguish.  Lamp, urn, dragon/volcano (nice try). */
 579 {
 580     if (obj == INTRANSITIVE) {
 581         if (HERE(LAMP) && game.prop[LAMP] == LAMP_BRIGHT)
 582             obj = LAMP;
 583         if (HERE(URN) && game.prop[URN] == URN_LIT)
 584             obj = URN;
 585         if (obj == INTRANSITIVE ||
 586             (HERE(LAMP) && game.prop[LAMP] == LAMP_BRIGHT &&
 587              HERE(URN) && game.prop[URN] == URN_LIT))
 588             return GO_UNKNOWN;
 589     }
 590
 591     if (obj == URN) {
 592         if (game.prop[URN] != URN_EMPTY) {
 593             state_change(URN, URN_DARK);
 594         } else {
 595             pspeak(URN, change, URN_DARK, true);
 596         }
 597
 598     } else if (obj == LAMP) {
 599         state_change(LAMP, LAMP_DARK);
 600         rspeak(DARK(game.loc) ?
 601                PITCH_DARK :
 602                NO_MESSAGE);
 603
 604     } else if (obj == DRAGON ||
 605                obj == VOLCANO) {
 606         rspeak(BEYOND_POWER);
 607
 608     } else {
 609         rspeak(actions[verb].message);
 610     }
 611     return GO_CLEAROBJ;
 612 }
 613
 614 static int feed(token_t verb, token_t obj)
 615 /*  Feed.  If bird, no seed.  Snake, dragon, troll: quip.  If dwarf, make him
 616  *  mad.  Bear, special. */
 617 {
 618     int spk = actions[verb].message;
 619     if (obj == BIRD) {
 620         rspeak(BIRD_PINING);
 621         return GO_CLEAROBJ;
 622     } else if (obj == SNAKE ||
 623                obj == DRAGON ||
 624                obj == TROLL) {
 625         spk = NOTHING_EDIBLE;
 626         if (obj == DRAGON && game.prop[DRAGON] != DRAGON_BARS)
 627             spk = RIDICULOUS_ATTEMPT;
 628         if (obj == TROLL)
 629             spk = TROLL_VICES;
 630         if (obj == SNAKE && !game.closed && HERE(BIRD)) {
 631             DESTROY(BIRD);
 632             spk = BIRD_DEVOURED;
 633         }
 634     } else if (obj == DWARF) {
 635         if (HERE(FOOD)) {
 636             game.dflag += 2;
 637             spk = REALLY_MAD;
 638         }
 639     } else if (obj == BEAR) {
 640         if (game.prop[BEAR] == UNTAMED_BEAR)
 641             spk = NOTHING_EDIBLE;
 642         if (game.prop[BEAR] == BEAR_DEAD)
 643             spk = RIDICULOUS_ATTEMPT;
 644         if (HERE(FOOD)) {
 645             DESTROY(FOOD);
 646             game.prop[BEAR] = SITTING_BEAR;
 647             game.fixed[AXE] = 0;
 648             game.prop[AXE] = 0;
 649             spk = BEAR_TAMED;
 650         }
 651     } else if (obj == OGRE) {
 652         if (HERE(FOOD))
 653             spk = OGRE_FULL;
 654     } else {
 655         spk = AM_GAME;
 656     }
 657     rspeak(spk);
 658     return GO_CLEAROBJ;
 659 }
 660
 661 int fill(token_t verb, token_t obj)
 662 /*  Fill.  Bottle or urn must be empty, and liquid available.  (Vase
 663  *  is nasty.) */
 664 {
 665     if (obj == VASE) {
 666         if (LIQLOC(game.loc) == NO_OBJECT) {
 667             rspeak(FILL_INVALID);
 668             return GO_CLEAROBJ;
 669         }
 670         if (!TOTING(VASE)) {
 671             rspeak(ARENT_CARRYING);
 672             return GO_CLEAROBJ;
 673         }
 674         rspeak(SHATTER_VASE);
 675         game.prop[VASE] = VASE_BROKEN;
 676         game.fixed[VASE] = -1;
 677         return (discard(verb, obj, true));
 678     }
 679
 680     if (obj == URN) {
 681         if (game.prop[URN] != URN_EMPTY) {
 682             rspeak(FULL_URN);
 683             return GO_CLEAROBJ;
 684         }
 685         if (!HERE(BOTTLE)) {
 686             rspeak(FILL_INVALID);
 687             return GO_CLEAROBJ;
 688         }
 689         int k = LIQUID();
 690         switch (k) {
 691         case WATER:
 692             game.prop[BOTTLE] = EMPTY_BOTTLE;
 693             rspeak(WATER_URN);
 694             break;
 695         case OIL:
 696             game.prop[URN] = URN_DARK;
 697             game.prop[BOTTLE] = EMPTY_BOTTLE;
 698             rspeak(OIL_URN);
 699             break;
 700         case NO_OBJECT:
 701         default:
 702             rspeak(FILL_INVALID);
 703             return GO_CLEAROBJ;
 704         }
 705         game.place[k] = LOC_NOWHERE;
 706         return GO_CLEAROBJ;
 707     }
 708     if (obj != NO_OBJECT && obj != BOTTLE) {
 709         rspeak(actions[verb].message);
 710         return GO_CLEAROBJ;
 711     }
 712     if (obj == NO_OBJECT && !HERE(BOTTLE))
 713         return GO_UNKNOWN;
 714
 715     if (HERE(URN) && game.prop[URN] != URN_EMPTY) {
 716         rspeak(URN_NOPOUR);
 717         return GO_CLEAROBJ;
 718     }
 719     if (LIQUID() != NO_OBJECT) {
 720         rspeak(BOTTLE_FULL);
 721         return GO_CLEAROBJ;
 722     }
 723     if (LIQLOC(game.loc) == NO_OBJECT) {
 724         rspeak(NO_LIQUID);
 725         return GO_CLEAROBJ;
 726     }
 727
 728     game.prop[BOTTLE] = (LIQLOC(game.loc) == OIL) ? OIL_BOTTLE : WATER_BOTTLE;
 729     if (TOTING(BOTTLE))
 730         game.place[LIQUID()] = CARRIED;
 731     if (LIQUID() == OIL)
 732         rspeak(BOTTLED_OIL);
 733     else
 734         rspeak(BOTTLED_WATER);
 735     return GO_CLEAROBJ;
 736 }
 737
 738 static int find(token_t verb, token_t obj)
 739 /* Find.  Might be carrying it, or it might be here.  Else give caveat. */
 740 {
 741     if (TOTING(obj)) {
 742         rspeak(ALREADY_CARRYING);
 743         return GO_CLEAROBJ;
 744     }
 745
 746     if (game.closed) {
 747         rspeak(NEEDED_NEARBY);
 748         return GO_CLEAROBJ;
 749     }
 750
 751     if (AT(obj) ||
 752         (LIQUID() == obj && AT(BOTTLE)) ||
 753         obj == LIQLOC(game.loc) ||
 754         (obj == DWARF && atdwrf(game.loc) > 0)) {
 755         rspeak(YOU_HAVEIT);
 756         return GO_CLEAROBJ;
 757     }
 758
 759
 760     rspeak(actions[verb].message);
 761     return GO_CLEAROBJ;
 762 }
 763
 764 static int fly(token_t verb, token_t obj)
 765 /* Fly.  Snide remarks unless hovering rug is here. */
 766 {
 767     if (obj == INTRANSITIVE) {
 768         if (!HERE(RUG)) {
 769             rspeak(FLAP_ARMS);
 770             return GO_CLEAROBJ;
 771         }
 772         if (game.prop[RUG] != RUG_HOVER) {
 773             rspeak(RUG_NOTHING2);
 774             return GO_CLEAROBJ;
 775         }
 776         obj = RUG;
 777     }
 778
 779     if (obj != RUG) {
 780         rspeak(actions[verb].message);
 781         return GO_CLEAROBJ;
 782     }
 783     if (game.prop[RUG] != RUG_HOVER) {
 784         rspeak(RUG_NOTHING1);
 785         return GO_CLEAROBJ;
 786     }
 787     game.oldlc2 = game.oldloc;
 788     game.oldloc = game.loc;
 789     /* FIXME: Arithmetic on location values */
 790     game.newloc = game.place[RUG] + game.fixed[RUG] - game.loc;
 791
 792     if (game.prop[SAPPH] >= 0) {
 793         rspeak(RUG_RETURNS);
 794     } else {
 795         rspeak(RUG_GOES);
 796     }
 797     return GO_TERMINATE;
 798 }
 799
 800 static int inven(void)
 801 /* Inventory. If object, treat same as find.  Else report on current burden. */
 802 {
 803     bool empty = true;
 804     for (int i = 1; i <= NOBJECTS; i++) {
 805         if (i == BEAR ||
 806             !TOTING(i))
 807             continue;
 808         if (empty) {
 809             rspeak(NOW_HOLDING);
 810             empty = false;
 811         }
 812         pspeak(i, touch, -1, false);
 813     }
 814     if (TOTING(BEAR))
 815         rspeak(TAME_BEAR);
 816     if (empty)
 817         rspeak(NO_CARRY);
 818     return GO_CLEAROBJ;
 819 }
 820
 821 static int light(token_t verb, token_t obj)
 822 /*  Light.  Applicable only to lamp and urn. */
 823 {
 824     if (obj == INTRANSITIVE) {
 825         if (HERE(LAMP) && game.prop[LAMP] == LAMP_DARK && game.limit >= 0)
 826             obj = LAMP;
 827         if (HERE(URN) && game.prop[URN] == URN_DARK)
 828             obj =  URN;
 829         if (obj == INTRANSITIVE ||
 830             (HERE(LAMP) && game.prop[LAMP] == LAMP_DARK && game.limit >= 0 &&
 831              HERE(URN) && game.prop[URN] == URN_DARK))
 832             return GO_UNKNOWN;
 833     }
 834
 835     if (obj == URN) {
 836         state_change(URN, game.prop[URN] == URN_EMPTY ?
 837                      URN_EMPTY :
 838                      URN_LIT);
 839         return GO_CLEAROBJ;
 840     } else {
 841         if (obj != LAMP) {
 842             rspeak(actions[verb].message);
 843             return GO_CLEAROBJ;
 844         }
 845         if (game.limit < 0) {
 846             rspeak(LAMP_OUT);
 847             return GO_CLEAROBJ;
 848         }
 849         state_change(LAMP, LAMP_BRIGHT);
 850         if (game.wzdark)
 851             return GO_TOP;
 852         else
 853             return GO_CLEAROBJ;
 854     }
 855 }
 856
 857 static int listen(void)
 858 /*  Listen.  Intransitive only.  Print stuff based on objsnd/locsnd. */
 859 {
 860     long sound = locations[game.loc].sound;
 861     if (sound != SILENT) {
 862         rspeak(sound);
 863         if (!locations[game.loc].loud)
 864             rspeak(NO_MESSAGE);
 865         return GO_CLEAROBJ;
 866     }
 867     for (int i = 1; i <= NOBJECTS; i++) {
 868         if (!HERE(i) ||
 869             objects[i].sounds[0] == NULL ||
 870             game.prop[i] < 0)
 871             continue;
 872         int mi =  game.prop[i];
 873         if (i == BIRD)
 874             mi += 3 * game.blooded;
 875         long packed_zzword = token_to_packed(game.zzword);
 876         pspeak(i, hear, mi, true, packed_zzword);
 877         rspeak(NO_MESSAGE);
 878         /* FIXME: Magic number, sensitive to bird state logic */
 879         if (i == BIRD && game.prop[i] == 5)
 880             DESTROY(BIRD);
 881         return GO_CLEAROBJ;
 882     }
 883     rspeak(ALL_SILENT);
 884     return GO_CLEAROBJ;
 885 }
 886
 887 static int lock(token_t verb, token_t obj)
 888 /* Lock, unlock, no object given.  Assume various things if present. */
 889 {
 890     if (obj == INTRANSITIVE) {
 891         if (HERE(CLAM))
 892             obj = CLAM;
 893         if (HERE(OYSTER))
 894             obj = OYSTER;
 895         if (AT(DOOR))
 896             obj = DOOR;
 897         if (AT(GRATE))
 898             obj = GRATE;
 899         if (HERE(CHAIN))
 900             obj = CHAIN;
 901         if (obj == INTRANSITIVE) {
 902             rspeak(NOTHING_LOCKED);
 903             return GO_CLEAROBJ;
 904         }
 905     }
 906
 907     /*  Lock, unlock object.  Special stuff for opening clam/oyster
 908      *  and for chain. */
 909     if (obj == GRATE ||
 910         obj == CHAIN) {
 911         if (HERE(KEYS)) {
 912             if (obj == CHAIN)
 913                 return chain(verb);
 914             if (game.closng) {
 915                 rspeak(EXIT_CLOSED);
 916                 if (!game.panic)
 917                     game.clock2 = PANICTIME;
 918                 game.panic = true;
 919                 return GO_CLEAROBJ ;
 920             } else {
 921                 state_change(GRATE, (verb == LOCK) ?
 922                              GRATE_CLOSED :
 923                              GRATE_OPEN);
 924                 return GO_CLEAROBJ;
 925             }
 926         }
 927         rspeak(NO_KEYS);
 928         return GO_CLEAROBJ;
 929     }
 930
 931     switch (obj) {
 932     case CLAM:
 933     case OYSTER:
 934         return bivalve(verb, obj);
 935     case DOOR:
 936         rspeak((game.prop[DOOR] == DOOR_UNRUSTED) ? OK_MAN : RUSTY_DOOR);
 937         break;
 938     case CAGE:
 939         rspeak( NO_LOCK);
 940         break;
 941     case KEYS:
 942         rspeak(CANNOT_UNLOCK);
 943         break;
 944     default:
 945         rspeak(actions[verb].message);
 946     }
 947
 948     return GO_CLEAROBJ;
 949 }
 950
 951 static int pour(token_t verb, token_t obj)
 952 /*  Pour.  If no object, or object is bottle, assume contents of bottle.
 953  *  special tests for pouring water or oil on plant or rusty door. */
 954 {
 955     if (obj == BOTTLE ||
 956         obj == NO_OBJECT)
 957         obj = LIQUID();
 958     if (obj == NO_OBJECT)
 959         return GO_UNKNOWN;
 960     if (!TOTING(obj)) {
 961         rspeak(actions[verb].message);
 962         return GO_CLEAROBJ;
 963     }
 964
 965     if (obj != OIL && obj != WATER) {
 966         rspeak(CANT_POUR);
 967         return GO_CLEAROBJ;
 968     }
 969     if (HERE(URN) && game.prop[URN] == URN_EMPTY)
 970         return fill(verb, URN);
 971     game.prop[BOTTLE] = EMPTY_BOTTLE;
 972     game.place[obj] = LOC_NOWHERE;
 973     if (!(AT(PLANT) ||
 974           AT(DOOR))) {
 975         rspeak(GROUND_WET);
 976         return GO_CLEAROBJ;
 977     }
 978     if (!AT(DOOR)) {
 979         if (obj == WATER) {
 980             /* cycle through the three plant states */
 981             state_change(PLANT, MOD(game.prop[PLANT] + 1, 3));
 982             game.prop[PLANT2] = game.prop[PLANT];
 983             return GO_MOVE;
 984         } else {
 985             rspeak(SHAKING_LEAVES);
 986             return GO_CLEAROBJ;
 987         }
 988     } else {
 989         state_change(DOOR, (obj == OIL) ?
 990                      DOOR_UNRUSTED :
 991                      DOOR_RUSTED);
 992         return GO_CLEAROBJ;
 993     }
 994 }
 995
 996 static int quit(void)
 997 /*  Quit.  Intransitive only.  Verify intent and exit if that's what he wants. */
 998 {
 999     if (yes(arbitrary_messages[REALLY_QUIT], arbitrary_messages[OK_MAN], arbitrary_messages[OK_MAN]))
1000         terminate(quitgame);
1001     return GO_CLEAROBJ;
1002 }
1003
1004 static int read(struct command_t command)
1005 /*  Read.  Print stuff based on objtxt.  Oyster (?) is special case. */
1006 {
1007     if (command.obj == INTRANSITIVE) {
1008         command.obj = 0;
1009         for (int i = 1; i <= NOBJECTS; i++) {
1010             if (HERE(i) && objects[i].texts[0] != NULL && game.prop[i] >= 0)
1011                 command.obj = command.obj * NOBJECTS + i;
1012         }
1013         if (command.obj > NOBJECTS ||
1014             command.obj == 0 ||
1015             DARK(game.loc))
1016             return GO_UNKNOWN;
1017     }
1018
1019     if (DARK(game.loc)) {
1020         sspeak(NO_SEE, command.raw1);
1021     } else if (command.obj == OYSTER && !game.clshnt && game.closed) {
1022         game.clshnt = yes(arbitrary_messages[CLUE_QUERY], arbitrary_messages[WAYOUT_CLUE], arbitrary_messages[OK_MAN]);
1023     } else if (objects[command.obj].texts[0] == NULL ||
1024                game.prop[command.obj] < 0) {
1025         rspeak(actions[command.verb].message);
1026     } else
1027         pspeak(command.obj, study, game.prop[command.obj], true);
1028     return GO_CLEAROBJ;
1029 }
1030
1031 static int reservoir(void)
1032 /*  Z'ZZZ (word gets recomputed at startup; different each game). */
1033 {
1034     /* FIXME: Arithmetic on state numbers */
1035     if (!AT(RESER) && game.loc != game.fixed[RESER] - 1) {
1036         rspeak(NOTHING_HAPPENS);
1037         return GO_CLEAROBJ;
1038     } else {
1039         /* FIXME: Arithmetic on state numbers */
1040         pspeak(RESER, look, game.prop[RESER] + 1, true);
1041         game.prop[RESER] = 1 - game.prop[RESER];
1042         if (AT(RESER))
1043             return GO_CLEAROBJ;
1044         else {
1045             game.oldlc2 = game.loc;
1046             game.newloc = LOC_NOWHERE;
1047             rspeak(NOT_BRIGHT);
1048             return GO_TERMINATE;
1049         }
1050     }
1051 }
1052
1053 static int rub(token_t verb, token_t obj)
1054 /* Rub.  Yields various snide remarks except for lit urn. */
1055 {
1056     if (obj == URN && game.prop[URN] == URN_LIT) {
1057         DESTROY(URN);
1058         drop(AMBER, game.loc);
1059         game.prop[AMBER] = AMBER_IN_ROCK;
1060         --game.tally;
1061         drop(CAVITY, game.loc);
1062         rspeak(URN_GENIES);
1063     } else if (obj != LAMP) {
1064         rspeak(PECULIAR_NOTHING);
1065     } else {
1066         rspeak(actions[verb].message);
1067     }
1068     return GO_CLEAROBJ;
1069 }
1070
1071 static int say(struct command_t *command)
1072 /* Say.  Echo WD2 (or WD1 if no WD2 (SAY WHAT?, etc.).)  Magic words override. */
1073 {
1074     if (command->wd2 > 0) {
1075         command->wd1 = command->wd2;
1076         strcpy(command->raw1, command->raw2);
1077     }
1078     char word1[TOKLEN + 1];
1079     packed_to_token(command->wd1, word1);
1080     int wd = (int) get_vocab_id(word1);
1081     /* FIXME: magic numbers */
1082     if (wd == MOTION_WORD(XYZZY) ||
1083         wd == MOTION_WORD(PLUGH) ||
1084         wd == MOTION_WORD(PLOVER) ||
1085         wd == ACTION_WORD(GIANTWORDS) ||
1086         wd == ACTION_WORD(PART)) {
1087         /* FIXME: scribbles on the interpreter's command block */
1088         wordclear(&command->wd2);
1089         return GO_LOOKUP;
1090     }
1091     sspeak(OKEY_DOKEY, command->raw1);
1092     return GO_CLEAROBJ;
1093 }
1094
1095 static int throw_support(long spk)
1096 {
1097     rspeak(spk);
1098     drop(AXE, game.loc);
1099     return GO_MOVE;
1100 }
1101
1102 static int throw (struct command_t *command)
1103 /*  Throw.  Same as discard unless axe.  Then same as attack except
1104  *  ignore bird, and if dwarf is present then one might be killed.
1105  *  (Only way to do so!)  Axe also special for dragon, bear, and
1106  *  troll.  Treasures special for troll. */
1107 {
1108     if (TOTING(ROD2) && command->obj == ROD && !TOTING(ROD))
1109         command->obj = ROD2;
1110     if (!TOTING(command->obj)) {
1111         rspeak(actions[command->verb].message);
1112         return GO_CLEAROBJ;
1113     }
1114     if (objects[command->obj].is_treasure && AT(TROLL)) {
1115         /*  Snarf a treasure for the troll. */
1116         drop(command->obj, LOC_NOWHERE);
1117         move(TROLL, LOC_NOWHERE);
1118         move(TROLL + NOBJECTS, LOC_NOWHERE);
1119         drop(TROLL2, objects[TROLL].plac);
1120         drop(TROLL2 + NOBJECTS, objects[TROLL].fixd);
1121         juggle(CHASM);
1122         rspeak(TROLL_SATISFIED);
1123         return GO_CLEAROBJ;
1124     }
1125     if (command->obj == FOOD && HERE(BEAR)) {
1126         /* But throwing food is another story. */
1127         command->obj = BEAR;
1128         return (feed(command->verb, command->obj));
1129     }
1130     if (command->obj != AXE)
1131         return (discard(command->verb, command->obj, false));
1132     else {
1133         if (atdwrf(game.loc) <= 0) {
1134             if (AT(DRAGON) && game.prop[DRAGON] == DRAGON_BARS)
1135                 return throw_support(DRAGON_SCALES);
1136             if (AT(TROLL))
1137                 return throw_support(TROLL_RETURNS);
1138             else if (AT(OGRE))
1139                 return throw_support(OGRE_DODGE);
1140             else if (HERE(BEAR) && game.prop[BEAR] == UNTAMED_BEAR) {
1141                 /* This'll teach him to throw the axe at the bear! */
1142                 drop(AXE, game.loc);
1143                 game.fixed[AXE] = -1;
1144                 juggle(BEAR);
1145                 state_change(AXE, AXE_LOST);
1146                 return GO_CLEAROBJ;
1147             }
1148             command->obj = NO_OBJECT;
1149             return (attack(command));
1150         }
1151
1152         if (randrange(NDWARVES + 1) < game.dflag) {
1153             return throw_support(DWARF_DODGES);
1154         } else {
1155             long i = atdwrf(game.loc);
1156             game.dseen[i] = false;
1157             game.dloc[i] = LOC_NOWHERE;
1158             return throw_support((++game.dkill == 1) ?
1159                                  DWARF_SMOKE :
1160                                  KILLED_DWARF);
1161         }
1162     }
1163 }
1164
1165 static int wake(token_t verb, token_t obj)
1166 /* Wake.  Only use is to disturb the dwarves. */
1167 {
1168     if (obj != DWARF ||
1169         !game.closed) {
1170         rspeak(actions[verb].message);
1171         return GO_CLEAROBJ;
1172     } else {
1173         rspeak(PROD_DWARF);
1174         return GO_DWARFWAKE;
1175     }
1176 }
1177
1178 static int wave(token_t verb, token_t obj)
1179 /* Wave.  No effect unless waving rod at fissure or at bird. */
1180 {
1181     if (obj != ROD ||
1182         !TOTING(obj) ||
1183         (!HERE(BIRD) &&
1184          (game.closng ||
1185           !AT(FISSURE)))) {
1186         rspeak(((!TOTING(obj)) && (obj != ROD ||
1187                                    !TOTING(ROD2))) ?
1188                ARENT_CARRYING :
1189                actions[verb].message);
1190         return GO_CLEAROBJ;
1191     }
1192
1193     if (game.prop[BIRD] == BIRD_UNCAGED && game.loc == game.place[STEPS] && game.prop[JADE] < 0) {
1194         drop(JADE, game.loc);
1195         game.prop[JADE] = 0;
1196         --game.tally;
1197         rspeak(NECKLACE_FLY);
1198         return GO_CLEAROBJ;
1199     } else {
1200         if (game.closed) {
1201             rspeak((game.prop[BIRD] == BIRD_CAGED) ?
1202                    CAGE_FLY :
1203                    FREE_FLY);
1204             return GO_DWARFWAKE;
1205         }
1206         if (game.closng ||
1207             !AT(FISSURE)) {
1208             rspeak((game.prop[BIRD] == BIRD_CAGED) ?
1209                    CAGE_FLY :
1210                    FREE_FLY);
1211             return GO_CLEAROBJ;
1212         }
1213         if (HERE(BIRD))
1214             rspeak((game.prop[BIRD] == BIRD_CAGED) ?
1215                    CAGE_FLY :
1216                    FREE_FLY);
1217
1218         /* FIXME: Arithemetic on property values */
1219         game.prop[FISSURE] = 1 - game.prop[FISSURE];
1220         pspeak(FISSURE, look, 2 - game.prop[FISSURE], true);
1221         return GO_CLEAROBJ;
1222     }
1223 }
1224
1225 int action(struct command_t *command)
1226 /*  Analyse a verb.  Remember what it was, go back for object if second word
1227  *  unless verb is "say", which snarfs arbitrary second word.
1228  */
1229 {
1230     if (command->part == unknown) {
1231         /*  Analyse an object word.  See if the thing is here, whether
1232          *  we've got a verb yet, and so on.  Object must be here
1233          *  unless verb is "find" or "invent(ory)" (and no new verb
1234          *  yet to be analysed).  Water and oil are also funny, since
1235          *  they are never actually dropped at any location, but might
1236          *  be here inside the bottle or urn or as a feature of the
1237          *  location. */
1238         if (HERE(command->obj))
1239             /* FALL THROUGH */;
1240         else if (command->obj == GRATE) {
1241             if (game.loc == LOC_START ||
1242                 game.loc == LOC_VALLEY ||
1243                 game.loc == LOC_SLIT) {
1244                 command->obj = DPRSSN;
1245             }
1246             if (game.loc == LOC_COBBLE ||
1247                 game.loc == LOC_DEBRIS ||
1248                 game.loc == LOC_AWKWARD ||
1249                 game.loc == LOC_BIRD ||
1250                 game.loc == LOC_PITTOP) {
1251                 command->obj = ENTRNC;
1252             }
1253         } else if (command->obj == DWARF && atdwrf(game.loc) > 0)
1254             /* FALL THROUGH */;
1255         else if ((LIQUID() == command->obj && HERE(BOTTLE)) ||
1256                  command->obj == LIQLOC(game.loc))
1257             /* FALL THROUGH */;
1258         else if (command->obj == OIL && HERE(URN) && game.prop[URN] != 0) {
1259             command->obj = URN;
1260             /* FALL THROUGH */;
1261         } else if (command->obj == PLANT && AT(PLANT2) && game.prop[PLANT2] != 0) {
1262             command->obj = PLANT2;
1263             /* FALL THROUGH */;
1264         } else if (command->obj == KNIFE && game.knfloc == game.loc) {
1265             game.knfloc = -1;
1266             rspeak(KNIVES_VANISH);
1267             return GO_CLEAROBJ;
1268         } else if (command->obj == ROD && HERE(ROD2)) {
1269             command->obj = ROD2;
1270             /* FALL THROUGH */;
1271         } else if ((command->verb == FIND ||
1272                     command->verb == INVENTORY) && command->wd2 <= 0)
1273             /* FALL THROUGH */;
1274         else {
1275             sspeak(NO_SEE, command->raw1);
1276             return GO_CLEAROBJ;
1277         }
1278
1279         if (command->wd2 > 0)
1280             return GO_WORD2;
1281         if (command->verb != 0)
1282             command->part = transitive;
1283     }
1284
1285     switch (command->part) {
1286     case intransitive:
1287         if (command->wd2 > 0 && command->verb != SAY)
1288             return GO_WORD2;
1289         if (command->verb == SAY)
1290             command->obj = command->wd2;
1291         if (command->obj == 0 ||
1292             command->obj == INTRANSITIVE) {
1293             /*  Analyse an intransitive verb (ie, no object given yet). */
1294             switch (command->verb) {
1295             case CARRY:
1296                 return vcarry(command->verb, INTRANSITIVE);
1297             case  DROP:
1298                 return GO_UNKNOWN;
1299             case  SAY:
1300                 return GO_UNKNOWN;
1301             case  UNLOCK:
1302                 return lock(command->verb, INTRANSITIVE);
1303             case  NOTHING: {
1304                 rspeak(OK_MAN);
1305                 return (GO_CLEAROBJ);
1306             }
1307             case  LOCK:
1308                 return lock(command->verb, INTRANSITIVE);
1309             case  LIGHT:
1310                 return light(command->verb, INTRANSITIVE);
1311             case  EXTINGUISH:
1312                 return extinguish(command->verb, INTRANSITIVE);
1313             case  WAVE:
1314                 return GO_UNKNOWN;
1315             case  TAME:
1316                 return GO_UNKNOWN;
1317             case GO: {
1318                 rspeak(actions[command->verb].message);
1319                 return GO_CLEAROBJ;
1320             }
1321             case ATTACK:
1322                 return attack(command);
1323             case POUR:
1324                 return pour(command->verb, command->obj);
1325             case EAT:
1326                 return eat(command->verb, INTRANSITIVE);
1327             case DRINK:
1328                 return drink(command->verb, command->obj);
1329             case RUB:
1330                 return GO_UNKNOWN;
1331             case THROW:
1332                 return GO_UNKNOWN;
1333             case QUIT:
1334                 return quit();
1335             case FIND:
1336                 return GO_UNKNOWN;
1337             case INVENTORY:
1338                 return inven();
1339             case FEED:
1340                 return GO_UNKNOWN;
1341             case FILL:
1342                 return fill(command->verb, command->obj);
1343             case BLAST:
1344                 blast();
1345                 return GO_CLEAROBJ;
1346             case SCORE:
1347                 score(scoregame);
1348                 return GO_CLEAROBJ;
1349             case GIANTWORDS:
1350                 return bigwords(command->wd1);
1351             case BRIEF:
1352                 return brief();
1353             case READ:
1354                 command->obj = INTRANSITIVE;
1355                 return read(*command);
1356             case BREAK:
1357                 return GO_UNKNOWN;
1358             case WAKE:
1359                 return GO_UNKNOWN;
1360             case SAVE:
1361                 return suspend();
1362             case RESUME:
1363                 return resume();
1364             case FLY:
1365                 return fly(command->verb, INTRANSITIVE);
1366             case LISTEN:
1367                 return listen();
1368             case PART:
1369                 return reservoir();
1370             default:
1371                 BUG(INTRANSITIVE_ACTION_VERB_EXCEEDS_GOTO_LIST); // LCOV_EXCL_LINE
1372             }
1373         }
1374     /* FALLTHRU */
1375     case transitive:
1376         /*  Analyse a transitive verb. */
1377         switch (command->verb) {
1378         case  CARRY:
1379             return vcarry(command->verb, command->obj);
1380         case  DROP:
1381             return discard(command->verb, command->obj, false);
1382         case  SAY:
1383             return say(command);
1384         case  UNLOCK:
1385             return lock(command->verb, command->obj);
1386         case  NOTHING: {
1387             rspeak(OK_MAN);
1388             return (GO_CLEAROBJ);
1389         }
1390         case  LOCK:
1391             return lock(command->verb, command->obj);
1392         case LIGHT:
1393             return light(command->verb, command->obj);
1394         case EXTINGUISH:
1395             return extinguish(command->verb, command->obj);
1396         case WAVE:
1397             return wave(command->verb, command->obj);
1398         case TAME: {
1399             rspeak(actions[command->verb].message);
1400             return GO_CLEAROBJ;
1401         }
1402         case GO: {
1403             rspeak(actions[command->verb].message);
1404             return GO_CLEAROBJ;
1405         }
1406         case ATTACK:
1407             return attack(command);
1408         case POUR:
1409             return pour(command->verb, command->obj);
1410         case EAT:
1411             return eat(command->verb, command->obj);
1412         case DRINK:
1413             return drink(command->verb, command->obj);
1414         case RUB:
1415             return rub(command->verb, command->obj);
1416         case THROW:
1417             return throw (command);
1418         case QUIT: {
1419             rspeak(actions[command->verb].message);
1420             return GO_CLEAROBJ;
1421         }
1422         case FIND:
1423             return find(command->verb, command->obj);
1424         case INVENTORY:
1425             return find(command->verb, command->obj);
1426         case FEED:
1427             return feed(command->verb, command->obj);
1428         case FILL:
1429             return fill(command->verb, command->obj);
1430         case BLAST:
1431             blast();
1432             return GO_CLEAROBJ;
1433         case SCORE: {
1434             rspeak(actions[command->verb].message);
1435             return GO_CLEAROBJ;
1436         }
1437         case GIANTWORDS: {
1438             rspeak(actions[command->verb].message);
1439             return GO_CLEAROBJ;
1440         }
1441         case BRIEF: {
1442             rspeak(actions[command->verb].message);
1443             return GO_CLEAROBJ;
1444         }
1445         case READ:
1446             return read(*command);
1447         case BREAK:
1448             return vbreak(command->verb, command->obj);
1449         case WAKE:
1450             return wake(command->verb, command->obj);
1451         case SAVE: {
1452             rspeak(actions[command->verb].message);
1453             return GO_CLEAROBJ;
1454         }
1455         case RESUME: {
1456             rspeak(actions[command->verb].message);
1457             return GO_CLEAROBJ;
1458         }
1459         case FLY:
1460             return fly(command->verb, command->obj);
1461         case LISTEN: {
1462             rspeak(actions[command->verb].message);
1463             return GO_CLEAROBJ;
1464         }
1465         case PART:
1466             return reservoir();
1467         default:
1468             BUG(TRANSITIVE_ACTION_VERB_EXCEEDS_GOTO_LIST); // LCOV_EXCL_LINE
1469         }
1470     case unknown:
1471         /* Unknown verb, couldn't deduce object - might need hint */
1472         sspeak(WHAT_DO, command->raw1);
1473         return GO_CHECKHINT;
1474     default:
1475         BUG(SPEECHPART_NOT_TRANSITIVE_OR_INTRANSITIVE_OR_UNKNOWN); // LCOV_EXCL_LINE
1476     }
1477 }