actions.c

   1 #include <stdlib.h>
   2 #include <stdbool.h>
   3 #include <string.h>
   4 #include "advent.h"
   5 #include "dungeon.h"
   6
   7 static int fill(token_t, token_t);
   8
   9 static int attack(struct command_t *command)
  10 /*  Attack.  Assume target if unambiguous.  "Throw" also links here.
  11  *  Attackable objects fall into two categories: enemies (snake,
  12  *  dwarf, etc.)  and others (bird, clam, machine).  Ambiguous if 2
  13  *  enemies, or no enemies but 2 others. */
  14 {
  15     vocab_t verb = command->verb;
  16     obj_t obj = command->obj;
  17
  18     if (obj == INTRANSITIVE) {
  19         int changes = 0;
  20         if (atdwrf(game.loc) > 0) {
  21             obj = DWARF;
  22             ++changes;
  23         }
  24         if (HERE(SNAKE)) {
  25             obj = SNAKE;
  26             ++changes;
  27         }
  28         if (AT(DRAGON) && game.prop[DRAGON] == DRAGON_BARS) {
  29             obj = DRAGON;
  30             ++changes;
  31         }
  32         if (AT(TROLL)) {
  33             obj = TROLL;
  34             ++changes;
  35         }
  36         if (AT(OGRE)) {
  37             obj = OGRE;
  38             ++changes;
  39         }
  40         if (HERE(BEAR) && game.prop[BEAR] == UNTAMED_BEAR) {
  41             obj = BEAR;
  42             ++changes;
  43         }
  44         /* check for low-priority targets */
  45         if (obj == INTRANSITIVE) {
  46             /* Can't attack bird or machine by throwing axe. */
  47             if (HERE(BIRD) && verb != THROW) {
  48                 obj = BIRD;
  49                 ++changes;
  50             }
  51             if (HERE(VEND) && verb != THROW) {
  52                 obj = VEND;
  53                 ++changes;
  54             }
  55             /* Clam and oyster both treated as clam for intransitive case;
  56              * no harm done. */
  57             if (HERE(CLAM) || HERE(OYSTER)) {
  58                 obj = CLAM;
  59                 ++changes;
  60             }
  61         }
  62         if (changes >= 2)
  63             return GO_UNKNOWN;
  64     }
  65
  66     if (obj == BIRD) {
  67         if (game.closed) {
  68             rspeak(UNHAPPY_BIRD);
  69         } else {
  70             DESTROY(BIRD);
  71             rspeak(BIRD_DEAD);
  72         }
  73         return GO_CLEAROBJ;
  74     }
  75     if (obj == VEND) {
  76         state_change(VEND,
  77                      game.prop[VEND] == VEND_BLOCKS ? VEND_UNBLOCKS : VEND_BLOCKS);
  78         return GO_CLEAROBJ;
  79     }
  80
  81     if (obj == BEAR) {
  82         switch (game.prop[BEAR]) {
  83         case UNTAMED_BEAR:
  84             rspeak(BEAR_HANDS);
  85             break;
  86         case SITTING_BEAR:
  87             rspeak(BEAR_CONFUSED);
  88             break;
  89         case CONTENTED_BEAR:
  90             rspeak(BEAR_CONFUSED);
  91             break;
  92         case BEAR_DEAD:
  93             rspeak(ALREADY_DEAD);
  94             break;
  95         }
  96         return GO_CLEAROBJ;
  97     }
  98     if (obj == DRAGON && game.prop[DRAGON] == DRAGON_BARS) {
  99         /*  Fun stuff for dragon.  If he insists on attacking it, win!
 100          *  Set game.prop to dead, move dragon to central loc (still
 101          *  fixed), move rug there (not fixed), and move him there,
 102          *  too.  Then do a null motion to get new description. */
 103         rspeak(BARE_HANDS_QUERY);
 104         if (silent_yes()) {
 105             // FIXME: setting wd1 is a workaround for broken logic
 106             command->wd1 = token_to_packed("Y");
 107         } else {
 108             // FIXME: setting wd1 is a workaround for broken logic
 109             command->wd1 = token_to_packed("N");
 110             return GO_CHECKFOO;
 111         }
 112         state_change(DRAGON, DRAGON_DEAD);
 113         game.prop[RUG] = RUG_FLOOR;
 114         /* Hardcoding LOC_SECRET5 as the dragon's death location is ugly.
 115          * The way it was computed before was worse; it depended on the
 116          * two dragon locations being LOC_SECRET4 and LOC_SECRET6 and
 117          * LOC_SECRET5 being right between them.
 118          */
 119         move(DRAGON + NOBJECTS, IS_FIXED);
 120         move(RUG + NOBJECTS, IS_FREE);
 121         move(DRAGON, LOC_SECRET5);
 122         move(RUG, LOC_SECRET5);
 123         drop(BLOOD, LOC_SECRET5);
 124         for (obj = 1; obj <= NOBJECTS; obj++) {
 125             if (game.place[obj] == objects[DRAGON].plac ||
 126                 game.place[obj] == objects[DRAGON].fixd)
 127                 move(obj, LOC_SECRET5);
 128         }
 129         game.loc = LOC_SECRET5;
 130         return GO_MOVE;
 131     }
 132
 133     if (obj == OGRE) {
 134         rspeak(OGRE_DODGE);
 135         if (atdwrf(game.loc) == 0)
 136             return GO_CLEAROBJ;
 137
 138         rspeak(KNIFE_THROWN);
 139         DESTROY(OGRE);
 140         int dwarves = 0;
 141         for (int i = 1; i < PIRATE; i++) {
 142             if (game.dloc[i] == game.loc) {
 143                 ++dwarves;
 144                 game.dloc[i] = LOC_LONGWEST;
 145                 game.dseen[i] = false;
 146             }
 147         }
 148         rspeak((dwarves > 1) ?
 149                OGRE_PANIC1 :
 150                OGRE_PANIC2);
 151         return GO_CLEAROBJ;
 152     }
 153
 154     switch (obj) {
 155     case INTRANSITIVE:
 156         rspeak(NO_TARGET);
 157         break;
 158     case CLAM:
 159     case OYSTER:
 160         rspeak(SHELL_IMPERVIOUS);
 161         break;
 162     case SNAKE:
 163         rspeak(SNAKE_WARNING);
 164         break;
 165     case DWARF:
 166         if (game.closed) {
 167             return GO_DWARFWAKE;
 168         }
 169         rspeak(BARE_HANDS_QUERY);
 170         break;
 171     case DRAGON:
 172         rspeak(ALREADY_DEAD);
 173         break;
 174     case TROLL:
 175         rspeak(ROCKY_TROLL);
 176         break;
 177     default:
 178         speak(actions[verb].message);
 179     }
 180     return GO_CLEAROBJ;
 181 }
 182
 183 static int bigwords(long id)
 184 /*  FEE FIE FOE FOO (AND FUM).  Advance to next state if given in proper order.
 185  *  Look up foo in special section of vocab to determine which word we've got.
 186  *  Last word zips the eggs back to the giant room (unless already there). */
 187 {
 188     if ((game.foobar == WORD_EMPTY && id == ACTION_WORD(FEE)) ||
 189         (game.foobar == ACTION_WORD(FEE) && id == ACTION_WORD(FIE)) ||
 190         (game.foobar == ACTION_WORD(FIE) && id == ACTION_WORD(FOE)) ||
 191         (game.foobar == ACTION_WORD(FOE) && id == ACTION_WORD(FOO)) ||
 192         (game.foobar == ACTION_WORD(FOE) && id == ACTION_WORD(FUM))) {
 193         game.foobar = id;
 194         if ((id != ACTION_WORD(FOO)) && (id != ACTION_WORD(FUM))) {
 195             rspeak(OK_MAN);
 196             return GO_CLEAROBJ;
 197         }
 198         game.foobar = WORD_EMPTY;
 199         if (game.place[EGGS] == objects[EGGS].plac ||
 200             (TOTING(EGGS) && game.loc == objects[EGGS].plac)) {
 201             rspeak(NOTHING_HAPPENS);
 202             return GO_CLEAROBJ;
 203         } else {
 204             /*  Bring back troll if we steal the eggs back from him before
 205              *  crossing. */
 206             if (game.place[EGGS] == LOC_NOWHERE && game.place[TROLL] == LOC_NOWHERE && game.prop[TROLL] == TROLL_UNPAID)
 207                 game.prop[TROLL] = TROLL_PAIDONCE;
 208             int k = EGGS_DONE;
 209             if (HERE(EGGS))
 210                 k = EGGS_VANISHED;
 211             if (game.loc == objects[EGGS].plac)
 212                 k = EGGS_HERE;
 213             move(EGGS, objects[EGGS].plac);
 214             pspeak(EGGS, look, k, true);
 215             return GO_CLEAROBJ;
 216         }
 217     } else {
 218         if (game.loc == LOC_GIANTROOM) {
 219             rspeak(START_OVER);
 220         } else {
 221             /* This is new begavior in Open Adventure - sounds better when
 222              * player isn't in the Giant Room. */
 223             rspeak(WELL_POINTLESS);
 224         }
 225         game.foobar = WORD_EMPTY;
 226         return GO_CLEAROBJ;
 227     }
 228 }
 229
 230 static void blast(void)
 231 /*  Blast.  No effect unless you've got dynamite, which is a neat trick! */
 232 {
 233     if (game.prop[ROD2] == STATE_NOTFOUND ||
 234         !game.closed)
 235         rspeak(REQUIRES_DYNAMITE);
 236     else {
 237         if (HERE(ROD2))
 238             game.bonus = SPLATTER_MESSAGE;
 239         else if (game.loc == LOC_NE)
 240             game.bonus = DEFEAT_MESSAGE;
 241         else
 242             game.bonus = VICTORY_MESSAGE;
 243         rspeak(game.bonus);
 244         terminate(endgame);
 245     }
 246 }
 247
 248 static int vbreak(vocab_t verb, obj_t obj)
 249 /*  Break.  Only works for mirror in repository and, of course, the vase. */
 250 {
 251     switch (obj) {
 252     case MIRROR:
 253         if (game.closed) {
 254             rspeak(BREAK_MIRROR);
 255             return GO_DWARFWAKE;
 256         } else {
 257             rspeak(TOO_FAR);
 258             break;
 259         }
 260     case VASE:
 261         if (game.prop[VASE] == VASE_WHOLE) {
 262             if (TOTING(VASE))
 263                 drop(VASE, game.loc);
 264             state_change(VASE, VASE_BROKEN);
 265             game.fixed[VASE] = IS_FIXED;
 266             break;
 267         }
 268     default:
 269         speak(actions[verb].message);
 270     }
 271     return (GO_CLEAROBJ);
 272 }
 273
 274 static int brief(void)
 275 /*  Brief.  Intransitive only.  Suppress long descriptions after first time. */
 276 {
 277     game.abbnum = 10000;
 278     game.detail = 3;
 279     rspeak(BRIEF_CONFIRM);
 280     return GO_CLEAROBJ;
 281 }
 282
 283 static int vcarry(token_t verb, obj_t obj)
 284 /*  Carry an object.  Special cases for bird and cage (if bird in cage, can't
 285  *  take one without the other).  Liquids also special, since they depend on
 286  *  status of bottle.  Also various side effects, etc. */
 287 {
 288     if (obj == INTRANSITIVE) {
 289         /*  Carry, no object given yet.  OK if only one object present. */
 290         if (game.atloc[game.loc] == 0 ||
 291             game.link[game.atloc[game.loc]] != 0 ||
 292             atdwrf(game.loc) > 0)
 293             return GO_UNKNOWN;
 294         obj = game.atloc[game.loc];
 295     }
 296
 297     if (TOTING(obj)) {
 298         rspeak(ALREADY_CARRYING);
 299         return GO_CLEAROBJ;
 300     }
 301
 302     if (obj == MESSAG) {
 303         rspeak(REMOVE_MESSAGE);
 304         DESTROY(MESSAG);
 305         return GO_CLEAROBJ;
 306     }
 307
 308     if (game.fixed[obj] != IS_FREE) {
 309         /* Next guard tests whether plant is tiny or stashed */
 310         if (obj == PLANT && game.prop[PLANT] <= PLANT_THIRSTY) {
 311             rspeak(DEEP_ROOTS);
 312             return GO_CLEAROBJ;
 313         }
 314         if (obj == BEAR && game.prop[BEAR] == SITTING_BEAR) {
 315             rspeak(BEAR_CHAINED);
 316             return GO_CLEAROBJ;
 317         }
 318         if (obj == CHAIN && game.prop[BEAR] != UNTAMED_BEAR) {
 319             rspeak(STILL_LOCKED);
 320             return GO_CLEAROBJ;
 321         }
 322         if (obj == URN) {
 323             rspeak(URN_NOBUDGE);
 324             return GO_CLEAROBJ;
 325         }
 326         if (obj == CAVITY) {
 327             rspeak(DOUGHNUT_HOLES);
 328             return GO_CLEAROBJ;
 329         }
 330         if (obj == BLOOD) {
 331             rspeak(FEW_DROPS);
 332             return GO_CLEAROBJ;
 333         }
 334         if (obj == RUG && game.prop[RUG] == RUG_HOVER) {
 335             rspeak(RUG_HOVERS);
 336             return GO_CLEAROBJ;
 337         }
 338         if (obj == SIGN) {
 339             rspeak(HAND_PASSTHROUGH);
 340             return GO_CLEAROBJ;
 341         }
 342         rspeak(YOU_JOKING);
 343         return GO_CLEAROBJ;
 344     }
 345
 346     if (obj == WATER ||
 347         obj == OIL) {
 348         if (!HERE(BOTTLE) ||
 349             LIQUID() != obj) {
 350             if (TOTING(BOTTLE)) {
 351                 if (game.prop[BOTTLE] == EMPTY_BOTTLE) {
 352                     return (fill(verb, BOTTLE));
 353                 } else if (game.prop[BOTTLE] != EMPTY_BOTTLE)
 354                     rspeak(BOTTLE_FULL);
 355                 return GO_CLEAROBJ;
 356             }
 357             rspeak(NO_CONTAINER);
 358             return GO_CLEAROBJ;
 359         }
 360         obj = BOTTLE;
 361     }
 362
 363     if (game.holdng >= INVLIMIT) {
 364         rspeak(CARRY_LIMIT);
 365         return GO_CLEAROBJ;
 366
 367     }
 368
 369     if (obj == BIRD && game.prop[BIRD] != BIRD_CAGED && STASHED(BIRD) != BIRD_CAGED) {
 370         if (game.prop[BIRD] == BIRD_FOREST_UNCAGED) {
 371             DESTROY(BIRD);
 372             rspeak(BIRD_CRAP);
 373             return GO_CLEAROBJ;
 374         }
 375         if (!TOTING(CAGE)) {
 376             rspeak(CANNOT_CARRY);
 377             return GO_CLEAROBJ;
 378         }
 379         if (TOTING(ROD)) {
 380             rspeak(BIRD_EVADES);
 381             return GO_CLEAROBJ;
 382         }
 383         game.prop[BIRD] = BIRD_CAGED;
 384     }
 385     if ((obj == BIRD ||
 386          obj == CAGE) &&
 387         (game.prop[BIRD] == BIRD_CAGED || STASHED(BIRD) == BIRD_CAGED))
 388         /* expression maps BIRD to CAGE and CAGE to BIRD */
 389         carry(BIRD + CAGE - obj, game.loc);
 390     carry(obj, game.loc);
 391     if (obj == BOTTLE && LIQUID() != NO_OBJECT)
 392         game.place[LIQUID()] = CARRIED;
 393     if (GSTONE(obj) && game.prop[obj] != STATE_FOUND) {
 394         game.prop[obj] = STATE_FOUND;
 395         game.prop[CAVITY] = CAVITY_EMPTY;
 396     }
 397     rspeak(OK_MAN);
 398     return GO_CLEAROBJ;
 399 }
 400
 401 static int chain(token_t verb)
 402 /* Do something to the bear's chain */
 403 {
 404     if (verb != LOCK) {
 405         if (game.prop[BEAR] == UNTAMED_BEAR) {
 406             rspeak(BEAR_BLOCKS);
 407             return GO_CLEAROBJ;
 408         }
 409         if (game.prop[CHAIN] == CHAIN_HEAP) {
 410             rspeak(ALREADY_UNLOCKED);
 411             return GO_CLEAROBJ;
 412         }
 413         game.prop[CHAIN] = CHAIN_HEAP;
 414         game.fixed[CHAIN] = IS_FREE;
 415         if (game.prop[BEAR] != BEAR_DEAD)
 416             game.prop[BEAR] = CONTENTED_BEAR;
 417
 418         switch (game.prop[BEAR]) {
 419         case BEAR_DEAD:
 420             game.fixed[BEAR] = IS_FIXED;
 421             break;
 422         default:
 423             game.fixed[BEAR] = IS_FREE;
 424         }
 425         rspeak(CHAIN_UNLOCKED);
 426         return GO_CLEAROBJ;
 427     }
 428
 429     if (game.prop[CHAIN] != CHAIN_HEAP) {
 430         rspeak(ALREADY_LOCKED);
 431         return GO_CLEAROBJ;
 432     }
 433     if (game.loc != objects[CHAIN].plac) {
 434         rspeak(NO_LOCKSITE);
 435         return GO_CLEAROBJ;
 436     }
 437
 438     game.prop[CHAIN] = CHAIN_FIXED;
 439
 440     if (TOTING(CHAIN))
 441         drop(CHAIN, game.loc);
 442     game.fixed[CHAIN] = IS_FIXED;
 443
 444     rspeak(CHAIN_LOCKED);
 445     return GO_CLEAROBJ;
 446 }
 447
 448 static int discard(token_t verb, obj_t obj)
 449 /*  Discard object.  "Throw" also comes here for most objects.  Special cases for
 450  *  bird (might attack snake or dragon) and cage (might contain bird) and vase.
 451  *  Drop coins at vending machine for extra batteries. */
 452 {
 453     if (TOTING(ROD2) && obj == ROD && !TOTING(ROD))
 454         obj = ROD2;
 455     if (!TOTING(obj)) {
 456         speak(actions[verb].message);
 457         return GO_CLEAROBJ;
 458     }
 459     if (obj == BIRD && HERE(SNAKE)) {
 460         rspeak(BIRD_ATTACKS);
 461         if (game.closed)
 462             return GO_DWARFWAKE;
 463         DESTROY(SNAKE);
 464         /* Set game.prop for use by travel options */
 465         game.prop[SNAKE] = SNAKE_CHASED;
 466
 467     } else if ((GSTONE(obj) && AT(CAVITY) && game.prop[CAVITY] != CAVITY_FULL)) {
 468         rspeak(GEM_FITS);
 469         game.prop[obj] = STATE_IN_CAVITY;
 470         game.prop[CAVITY] = CAVITY_FULL;
 471         if (HERE(RUG) && ((obj == EMERALD && game.prop[RUG] != RUG_HOVER) ||
 472                           (obj == RUBY && game.prop[RUG] == RUG_HOVER))) {
 473             int spk = RUG_RISES;
 474             if (TOTING(RUG))
 475                 spk = RUG_WIGGLES;
 476             if (obj == RUBY)
 477                 spk = RUG_SETTLES;
 478             rspeak(spk);
 479             if (spk != RUG_WIGGLES) {
 480                 int k = (game.prop[RUG] == RUG_HOVER) ? RUG_FLOOR : RUG_HOVER;
 481                 game.prop[RUG] = k;
 482                 if (k == RUG_HOVER)
 483                     k = objects[SAPPH].plac;
 484                 move(RUG + NOBJECTS, k);
 485             }
 486         }
 487     } else if (obj == COINS && HERE(VEND)) {
 488         DESTROY(COINS);
 489         drop(BATTERY, game.loc);
 490         pspeak(BATTERY, look, FRESH_BATTERIES, true);
 491         return GO_CLEAROBJ;
 492     } else if (obj == BIRD && AT(DRAGON) && game.prop[DRAGON] == DRAGON_BARS) {
 493         rspeak(BIRD_BURNT);
 494         DESTROY(BIRD);
 495         return GO_CLEAROBJ;
 496     } else if (obj == BEAR && AT(TROLL)) {
 497         state_change(TROLL, TROLL_GONE);
 498         move(TROLL, LOC_NOWHERE);
 499         move(TROLL + NOBJECTS, IS_FREE);
 500         move(TROLL2, objects[TROLL].plac);
 501         move(TROLL2 + NOBJECTS, objects[TROLL].fixd);
 502         juggle(CHASM);
 503     } else if (obj != VASE ||
 504                game.loc == objects[PILLOW].plac) {
 505         rspeak(OK_MAN);
 506     } else {
 507         state_change(VASE, AT(PILLOW)
 508                      ? VASE_WHOLE
 509                      : VASE_DROPPED);
 510         if (game.prop[VASE] != VASE_WHOLE)
 511             game.fixed[VASE] = IS_FIXED;
 512     }
 513     int k = LIQUID();
 514     if (k == obj)
 515         obj = BOTTLE;
 516     if (obj == BOTTLE && k != NO_OBJECT)
 517         game.place[k] = LOC_NOWHERE;
 518     if (obj == CAGE && game.prop[BIRD] == BIRD_CAGED)
 519         drop(BIRD, game.loc);
 520     drop(obj, game.loc);
 521     if (obj != BIRD)
 522         return GO_CLEAROBJ;
 523     game.prop[BIRD] = BIRD_UNCAGED;
 524     if (FOREST(game.loc))
 525         game.prop[BIRD] = BIRD_FOREST_UNCAGED;
 526     return GO_CLEAROBJ;
 527 }
 528
 529 static int drink(token_t verb, obj_t obj)
 530 /*  Drink.  If no object, assume water and look for it here.  If water is in
 531  *  the bottle, drink that, else must be at a water loc, so drink stream. */
 532 {
 533     if (obj == INTRANSITIVE && LIQLOC(game.loc) != WATER &&
 534         (LIQUID() != WATER || !HERE(BOTTLE))) {
 535         return GO_UNKNOWN;
 536     }
 537
 538     if (obj == BLOOD) {
 539         DESTROY(BLOOD);
 540         state_change(DRAGON, DRAGON_BLOODLESS);
 541         game.blooded = true;
 542         return GO_CLEAROBJ;
 543     }
 544
 545     if (obj != INTRANSITIVE && obj != WATER) {
 546         rspeak(RIDICULOUS_ATTEMPT);
 547         return GO_CLEAROBJ;
 548     }
 549     if (LIQUID() == WATER && HERE(BOTTLE)) {
 550         game.place[WATER] = LOC_NOWHERE;
 551         state_change(BOTTLE, EMPTY_BOTTLE);
 552         return GO_CLEAROBJ;
 553     }
 554
 555     speak(actions[verb].message);
 556     return GO_CLEAROBJ;
 557 }
 558
 559 static int eat(token_t verb, obj_t obj)
 560 /*  Eat.  Intransitive: assume food if present, else ask what.  Transitive: food
 561  *  ok, some things lose appetite, rest are ridiculous. */
 562 {
 563     switch (obj) {
 564     case INTRANSITIVE:
 565         if (!HERE(FOOD))
 566             return GO_UNKNOWN;
 567     case FOOD:
 568         DESTROY(FOOD);
 569         rspeak(THANKS_DELICIOUS);
 570         break;
 571     case BIRD:
 572     case SNAKE:
 573     case CLAM:
 574     case OYSTER:
 575     case DWARF:
 576     case DRAGON:
 577     case TROLL:
 578     case BEAR:
 579     case OGRE:
 580         rspeak(LOST_APPETITE);
 581         break;
 582     default:
 583         speak(actions[verb].message);
 584     }
 585     return GO_CLEAROBJ;
 586 }
 587
 588 static int extinguish(token_t verb, obj_t obj)
 589 /* Extinguish.  Lamp, urn, dragon/volcano (nice try). */
 590 {
 591     if (obj == INTRANSITIVE) {
 592         if (HERE(LAMP) && game.prop[LAMP] == LAMP_BRIGHT)
 593             obj = LAMP;
 594         if (HERE(URN) && game.prop[URN] == URN_LIT)
 595             obj = URN;
 596         if (obj == INTRANSITIVE)
 597             return GO_UNKNOWN;
 598     }
 599
 600     switch (obj) {
 601     case URN:
 602         if (game.prop[URN] != URN_EMPTY) {
 603             state_change(URN, URN_DARK);
 604         } else {
 605             pspeak(URN, change, URN_DARK, true);
 606         }
 607         break;
 608     case LAMP:
 609         state_change(LAMP, LAMP_DARK);
 610         rspeak(DARK(game.loc) ?
 611                PITCH_DARK :
 612                NO_MESSAGE);
 613         break;
 614     case DRAGON:
 615     case VOLCANO:
 616         rspeak(BEYOND_POWER);
 617         break;
 618     default:
 619         speak(actions[verb].message);
 620     }
 621     return GO_CLEAROBJ;
 622 }
 623
 624 static int feed(token_t verb, obj_t obj)
 625 /*  Feed.  If bird, no seed.  Snake, dragon, troll: quip.  If dwarf, make him
 626  *  mad.  Bear, special. */
 627 {
 628     switch (obj) {
 629     case BIRD:
 630         rspeak(BIRD_PINING);
 631         break;
 632     case DRAGON:
 633         if (game.prop[DRAGON] != DRAGON_BARS)
 634             rspeak(RIDICULOUS_ATTEMPT);
 635         else
 636             rspeak(NOTHING_EDIBLE);
 637         break;
 638     case SNAKE:
 639         if (!game.closed && HERE(BIRD)) {
 640             DESTROY(BIRD);
 641             rspeak(BIRD_DEVOURED);
 642         } else
 643             rspeak(NOTHING_EDIBLE);
 644         break;
 645     case TROLL:
 646         rspeak(TROLL_VICES);
 647         break;
 648     case DWARF:
 649         if (HERE(FOOD)) {
 650             game.dflag += 2;
 651             rspeak(REALLY_MAD);
 652         } else
 653             speak(actions[verb].message);
 654         break;
 655     case BEAR:
 656         if (game.prop[BEAR] == BEAR_DEAD) {
 657             rspeak(RIDICULOUS_ATTEMPT);
 658             break;
 659         }
 660         if (game.prop[BEAR] == UNTAMED_BEAR) {
 661             if (HERE(FOOD)) {
 662                 DESTROY(FOOD);
 663                 game.fixed[AXE] = IS_FREE;
 664                 game.prop[AXE] = AXE_HERE;
 665                 state_change(BEAR, SITTING_BEAR);
 666             } else
 667                 rspeak(NOTHING_EDIBLE);
 668             break;
 669         }
 670         speak(actions[verb].message);
 671         break;
 672     case OGRE:
 673         if (HERE(FOOD))
 674             rspeak(OGRE_FULL);
 675         else
 676             speak(actions[verb].message);
 677         break;
 678     default:
 679         rspeak(AM_GAME);
 680     }
 681     return GO_CLEAROBJ;
 682 }
 683
 684 int fill(token_t verb, obj_t obj)
 685 /*  Fill.  Bottle or urn must be empty, and liquid available.  (Vase
 686  *  is nasty.) */
 687 {
 688     if (obj == VASE) {
 689         if (LIQLOC(game.loc) == NO_OBJECT) {
 690             rspeak(FILL_INVALID);
 691             return GO_CLEAROBJ;
 692         }
 693         if (!TOTING(VASE)) {
 694             rspeak(ARENT_CARRYING);
 695             return GO_CLEAROBJ;
 696         }
 697         rspeak(SHATTER_VASE);
 698         game.prop[VASE] = VASE_BROKEN;
 699         game.fixed[VASE] = IS_FIXED;
 700         drop(VASE, game.loc);
 701         return GO_CLEAROBJ;
 702     }
 703
 704     if (obj == URN) {
 705         if (game.prop[URN] != URN_EMPTY) {
 706             rspeak(FULL_URN);
 707             return GO_CLEAROBJ;
 708         }
 709         if (!HERE(BOTTLE)) {
 710             rspeak(FILL_INVALID);
 711             return GO_CLEAROBJ;
 712         }
 713         int k = LIQUID();
 714         switch (k) {
 715         case WATER:
 716             game.prop[BOTTLE] = EMPTY_BOTTLE;
 717             rspeak(WATER_URN);
 718             break;
 719         case OIL:
 720             game.prop[URN] = URN_DARK;
 721             game.prop[BOTTLE] = EMPTY_BOTTLE;
 722             rspeak(OIL_URN);
 723             break;
 724         case NO_OBJECT:
 725         default:
 726             rspeak(FILL_INVALID);
 727             return GO_CLEAROBJ;
 728         }
 729         game.place[k] = LOC_NOWHERE;
 730         return GO_CLEAROBJ;
 731     }
 732     if (obj != INTRANSITIVE && obj != BOTTLE) {
 733         speak(actions[verb].message);
 734         return GO_CLEAROBJ;
 735     }
 736     if (obj == INTRANSITIVE && !HERE(BOTTLE))
 737         return GO_UNKNOWN;
 738
 739     if (HERE(URN) && game.prop[URN] != URN_EMPTY) {
 740         rspeak(URN_NOPOUR);
 741         return GO_CLEAROBJ;
 742     }
 743     if (LIQUID() != NO_OBJECT) {
 744         rspeak(BOTTLE_FULL);
 745         return GO_CLEAROBJ;
 746     }
 747     if (LIQLOC(game.loc) == NO_OBJECT) {
 748         rspeak(NO_LIQUID);
 749         return GO_CLEAROBJ;
 750     }
 751
 752     state_change(BOTTLE, (LIQLOC(game.loc) == OIL)
 753                  ? OIL_BOTTLE
 754                  : WATER_BOTTLE);
 755     if (TOTING(BOTTLE))
 756         game.place[LIQUID()] = CARRIED;
 757     return GO_CLEAROBJ;
 758 }
 759
 760 static int find(token_t verb, obj_t obj)
 761 /* Find.  Might be carrying it, or it might be here.  Else give caveat. */
 762 {
 763     if (TOTING(obj)) {
 764         rspeak(ALREADY_CARRYING);
 765         return GO_CLEAROBJ;
 766     }
 767
 768     if (game.closed) {
 769         rspeak(NEEDED_NEARBY);
 770         return GO_CLEAROBJ;
 771     }
 772
 773     if (AT(obj) ||
 774         (LIQUID() == obj && AT(BOTTLE)) ||
 775         obj == LIQLOC(game.loc) ||
 776         (obj == DWARF && atdwrf(game.loc) > 0)) {
 777         rspeak(YOU_HAVEIT);
 778         return GO_CLEAROBJ;
 779     }
 780
 781
 782     speak(actions[verb].message);
 783     return GO_CLEAROBJ;
 784 }
 785
 786 static int fly(token_t verb, obj_t obj)
 787 /* Fly.  Snide remarks unless hovering rug is here. */
 788 {
 789     if (obj == INTRANSITIVE) {
 790         if (!HERE(RUG)) {
 791             rspeak(FLAP_ARMS);
 792             return GO_CLEAROBJ;
 793         }
 794         if (game.prop[RUG] != RUG_HOVER) {
 795             rspeak(RUG_NOTHING2);
 796             return GO_CLEAROBJ;
 797         }
 798         obj = RUG;
 799     }
 800
 801     if (obj != RUG) {
 802         speak(actions[verb].message);
 803         return GO_CLEAROBJ;
 804     }
 805     if (game.prop[RUG] != RUG_HOVER) {
 806         rspeak(RUG_NOTHING1);
 807         return GO_CLEAROBJ;
 808     }
 809     game.oldlc2 = game.oldloc;
 810     game.oldloc = game.loc;
 811
 812     if (game.prop[SAPPH] == STATE_NOTFOUND) {
 813         game.newloc = game.place[SAPPH];
 814         rspeak(RUG_GOES);
 815     } else {
 816         game.newloc = LOC_CLIFF;
 817         rspeak(RUG_RETURNS);
 818     }
 819     return GO_TERMINATE;
 820 }
 821
 822 static int inven(void)
 823 /* Inventory. If object, treat same as find.  Else report on current burden. */
 824 {
 825     bool empty = true;
 826     for (obj_t i = 1; i <= NOBJECTS; i++) {
 827         if (i == BEAR ||
 828             !TOTING(i))
 829             continue;
 830         if (empty) {
 831             rspeak(NOW_HOLDING);
 832             empty = false;
 833         }
 834         pspeak(i, touch, -1, false);
 835     }
 836     if (TOTING(BEAR))
 837         rspeak(TAME_BEAR);
 838     if (empty)
 839         rspeak(NO_CARRY);
 840     return GO_CLEAROBJ;
 841 }
 842
 843 static int light(token_t verb, obj_t obj)
 844 /*  Light.  Applicable only to lamp and urn. */
 845 {
 846     if (obj == INTRANSITIVE) {
 847         int selects = 0;
 848         if (HERE(LAMP) && game.prop[LAMP] == LAMP_DARK && game.limit >= 0) {
 849             obj = LAMP;
 850             selects++;
 851         }
 852         if (HERE(URN) && game.prop[URN] == URN_DARK) {
 853             obj =  URN;
 854             selects++;
 855         }
 856         if (selects != 1)
 857             return GO_UNKNOWN;
 858     }
 859
 860     switch (obj) {
 861     case URN:
 862         state_change(URN, game.prop[URN] == URN_EMPTY ?
 863                      URN_EMPTY :
 864                      URN_LIT);
 865         break;
 866     case LAMP:
 867         if (game.limit < 0) {
 868             rspeak(LAMP_OUT);
 869             break;
 870         }
 871         state_change(LAMP, LAMP_BRIGHT);
 872         if (game.wzdark)
 873             return GO_TOP;
 874         break;
 875     default:
 876         speak(actions[verb].message);
 877     }
 878     return GO_CLEAROBJ;
 879 }
 880
 881 static int listen(void)
 882 /*  Listen.  Intransitive only.  Print stuff based on object sound proprties. */
 883 {
 884     long sound = locations[game.loc].sound;
 885     if (sound != SILENT) {
 886         rspeak(sound);
 887         if (!locations[game.loc].loud)
 888             rspeak(NO_MESSAGE);
 889         return GO_CLEAROBJ;
 890     }
 891     for (obj_t i = 1; i <= NOBJECTS; i++) {
 892         if (!HERE(i) ||
 893             objects[i].sounds[0] == NULL ||
 894             game.prop[i] < 0)
 895             continue;
 896         int mi =  game.prop[i];
 897         /* FIXME: Weird magic on object states */
 898         if (i == BIRD)
 899             mi += 3 * game.blooded;
 900         long packed_zzword = token_to_packed(game.zzword);
 901         pspeak(i, hear, mi, true, packed_zzword);
 902         rspeak(NO_MESSAGE);
 903         if (i == BIRD && mi == BIRD_ENDSTATE)
 904             DESTROY(BIRD);
 905         return GO_CLEAROBJ;
 906     }
 907     rspeak(ALL_SILENT);
 908     return GO_CLEAROBJ;
 909 }
 910
 911 static int lock(token_t verb, obj_t obj)
 912 /* Lock, unlock, no object given.  Assume various things if present. */
 913 {
 914     if (obj == INTRANSITIVE) {
 915         if (HERE(CLAM))
 916             obj = CLAM;
 917         if (HERE(OYSTER))
 918             obj = OYSTER;
 919         if (AT(DOOR))
 920             obj = DOOR;
 921         if (AT(GRATE))
 922             obj = GRATE;
 923         if (HERE(CHAIN))
 924             obj = CHAIN;
 925         if (obj == INTRANSITIVE) {
 926             rspeak(NOTHING_LOCKED);
 927             return GO_CLEAROBJ;
 928         }
 929     }
 930
 931     /*  Lock, unlock object.  Special stuff for opening clam/oyster
 932      *  and for chain. */
 933
 934     switch (obj) {
 935     case CHAIN:
 936         if (HERE(KEYS)) {
 937             return chain(verb);
 938         } else
 939             rspeak(NO_KEYS);
 940         break;
 941     case GRATE:
 942         if (HERE(KEYS)) {
 943             if (game.closng) {
 944                 rspeak(EXIT_CLOSED);
 945                 if (!game.panic)
 946                     game.clock2 = PANICTIME;
 947                 game.panic = true;
 948             } else {
 949                 state_change(GRATE, (verb == LOCK) ?
 950                              GRATE_CLOSED :
 951                              GRATE_OPEN);
 952             }
 953         } else
 954             rspeak(NO_KEYS);
 955         break;
 956     case CLAM:
 957         if (verb == LOCK)
 958             rspeak(HUH_MAN);
 959         else if (!TOTING(TRIDENT))
 960             rspeak(OYSTER_OPENER);
 961         else {
 962             DESTROY(CLAM);
 963             drop(OYSTER, game.loc);
 964             drop(PEARL, LOC_CULDESAC);
 965             rspeak(PEARL_FALLS);
 966         }
 967         break;
 968     case OYSTER:
 969         if (verb == LOCK)
 970             rspeak(HUH_MAN);
 971         else
 972             rspeak(OYSTER_OPENER);
 973         break;
 974     case DOOR:
 975         rspeak((game.prop[DOOR] == DOOR_UNRUSTED) ? OK_MAN : RUSTY_DOOR);
 976         break;
 977     case CAGE:
 978         rspeak( NO_LOCK);
 979         break;
 980     case KEYS:
 981         rspeak(CANNOT_UNLOCK);
 982         break;
 983     default:
 984         speak(actions[verb].message);
 985     }
 986
 987     return GO_CLEAROBJ;
 988 }
 989
 990 static int pour(token_t verb, obj_t obj)
 991 /*  Pour.  If no object, or object is bottle, assume contents of bottle.
 992  *  special tests for pouring water or oil on plant or rusty door. */
 993 {
 994     if (obj == BOTTLE ||
 995         obj == INTRANSITIVE)
 996         obj = LIQUID();
 997     if (obj == NO_OBJECT)
 998         return GO_UNKNOWN;
 999     if (!TOTING(obj)) {
1000         speak(actions[verb].message);
1001         return GO_CLEAROBJ;
1002     }
1003
1004     if (obj != OIL && obj != WATER) {
1005         rspeak(CANT_POUR);
1006         return GO_CLEAROBJ;
1007     }
1008     if (HERE(URN) && game.prop[URN] == URN_EMPTY)
1009         return fill(verb, URN);
1010     game.prop[BOTTLE] = EMPTY_BOTTLE;
1011     game.place[obj] = LOC_NOWHERE;
1012     if (!(AT(PLANT) ||
1013           AT(DOOR))) {
1014         rspeak(GROUND_WET);
1015         return GO_CLEAROBJ;
1016     }
1017     if (!AT(DOOR)) {
1018         if (obj == WATER) {
1019             /* cycle through the three plant states */
1020             state_change(PLANT, MOD(game.prop[PLANT] + 1, 3));
1021             game.prop[PLANT2] = game.prop[PLANT];
1022             return GO_MOVE;
1023         } else {
1024             rspeak(SHAKING_LEAVES);
1025             return GO_CLEAROBJ;
1026         }
1027     } else {
1028         state_change(DOOR, (obj == OIL) ?
1029                      DOOR_UNRUSTED :
1030                      DOOR_RUSTED);
1031         return GO_CLEAROBJ;
1032     }
1033 }
1034
1035 static int quit(void)
1036 /*  Quit.  Intransitive only.  Verify intent and exit if that's what he wants. */
1037 {
1038     if (yes(arbitrary_messages[REALLY_QUIT], arbitrary_messages[OK_MAN], arbitrary_messages[OK_MAN]))
1039         terminate(quitgame);
1040     return GO_CLEAROBJ;
1041 }
1042
1043 static int read(struct command_t command)
1044 /*  Read.  Print stuff based on objtxt.  Oyster (?) is special case. */
1045 {
1046     if (command.obj == INTRANSITIVE) {
1047         command.obj = NO_OBJECT;
1048         for (int i = 1; i <= NOBJECTS; i++) {
1049             if (HERE(i) && objects[i].texts[0] != NULL && game.prop[i] >= 0)
1050                 command.obj = command.obj * NOBJECTS + i;
1051         }
1052         if (command.obj > NOBJECTS ||
1053             command.obj == NO_OBJECT ||
1054             DARK(game.loc))
1055             return GO_UNKNOWN;
1056     }
1057
1058     if (DARK(game.loc)) {
1059         sspeak(NO_SEE, command.raw1);
1060     } else if (command.obj == OYSTER && !game.clshnt && game.closed) {
1061         game.clshnt = yes(arbitrary_messages[CLUE_QUERY], arbitrary_messages[WAYOUT_CLUE], arbitrary_messages[OK_MAN]);
1062     } else if (objects[command.obj].texts[0] == NULL ||
1063                game.prop[command.obj] == STATE_NOTFOUND) {
1064         speak(actions[command.verb].message);
1065     } else
1066         pspeak(command.obj, study, game.prop[command.obj], true);
1067     return GO_CLEAROBJ;
1068 }
1069
1070 static int reservoir(void)
1071 /*  Z'ZZZ (word gets recomputed at startup; different each game). */
1072 {
1073     if (!AT(RESER) && game.loc != LOC_RESBOTTOM) {
1074         rspeak(NOTHING_HAPPENS);
1075         return GO_CLEAROBJ;
1076     } else {
1077         state_change(RESER,
1078                      game.prop[RESER] == WATERS_PARTED ? WATERS_UNPARTED : WATERS_PARTED);
1079         if (AT(RESER))
1080             return GO_CLEAROBJ;
1081         else {
1082             game.oldlc2 = game.loc;
1083             game.newloc = LOC_NOWHERE;
1084             rspeak(NOT_BRIGHT);
1085             return GO_TERMINATE;
1086         }
1087     }
1088 }
1089
1090 static int rub(token_t verb, obj_t obj)
1091 /* Rub.  Yields various snide remarks except for lit urn. */
1092 {
1093     if (obj == URN && game.prop[URN] == URN_LIT) {
1094         DESTROY(URN);
1095         drop(AMBER, game.loc);
1096         game.prop[AMBER] = AMBER_IN_ROCK;
1097         --game.tally;
1098         drop(CAVITY, game.loc);
1099         rspeak(URN_GENIES);
1100     } else if (obj != LAMP) {
1101         rspeak(PECULIAR_NOTHING);
1102     } else {
1103         speak(actions[verb].message);
1104     }
1105     return GO_CLEAROBJ;
1106 }
1107
1108 static int say(struct command_t *command)
1109 /* Say.  Echo WD2 (or WD1 if no WD2 (SAY WHAT?, etc.).)  Magic words override. */
1110 {
1111     if (command->wd2 > 0) {
1112         command->wd1 = command->wd2;
1113         strcpy(command->raw1, command->raw2);
1114     }
1115     char word1[TOKLEN + 1];
1116     packed_to_token(command->wd1, word1);
1117     int wd = (int) get_vocab_id(word1);
1118     if (wd == MOTION_WORD(XYZZY) ||
1119         wd == MOTION_WORD(PLUGH) ||
1120         wd == MOTION_WORD(PLOVER) ||
1121         wd == ACTION_WORD(FEE) ||
1122         wd == ACTION_WORD(FIE) ||
1123         wd == ACTION_WORD(FOE) ||
1124         wd == ACTION_WORD(FOO) ||
1125         wd == ACTION_WORD(FUM) ||
1126         wd == ACTION_WORD(PART)) {
1127         /* FIXME: scribbles on the interpreter's command block */
1128         wordclear(&command->wd2);
1129         return GO_LOOKUP;
1130     }
1131     sspeak(OKEY_DOKEY, command->raw1);
1132     return GO_CLEAROBJ;
1133 }
1134
1135 static int throw_support(long spk)
1136 {
1137     rspeak(spk);
1138     drop(AXE, game.loc);
1139     return GO_MOVE;
1140 }
1141
1142 static int throw (struct command_t *command)
1143 /*  Throw.  Same as discard unless axe.  Then same as attack except
1144  *  ignore bird, and if dwarf is present then one might be killed.
1145  *  (Only way to do so!)  Axe also special for dragon, bear, and
1146  *  troll.  Treasures special for troll. */
1147 {
1148     if (!TOTING(command->obj)) {
1149         speak(actions[command->verb].message);
1150         return GO_CLEAROBJ;
1151     }
1152     if (objects[command->obj].is_treasure && AT(TROLL)) {
1153         /*  Snarf a treasure for the troll. */
1154         drop(command->obj, LOC_NOWHERE);
1155         move(TROLL, LOC_NOWHERE);
1156         move(TROLL + NOBJECTS, IS_FREE);
1157         drop(TROLL2, objects[TROLL].plac);
1158         drop(TROLL2 + NOBJECTS, objects[TROLL].fixd);
1159         juggle(CHASM);
1160         rspeak(TROLL_SATISFIED);
1161         return GO_CLEAROBJ;
1162     }
1163     if (command->obj == FOOD && HERE(BEAR)) {
1164         /* But throwing food is another story. */
1165         command->obj = BEAR;
1166         return (feed(command->verb, command->obj));
1167     }
1168     if (command->obj != AXE)
1169         return (discard(command->verb, command->obj));
1170     else {
1171         if (atdwrf(game.loc) <= 0) {
1172             if (AT(DRAGON) && game.prop[DRAGON] == DRAGON_BARS)
1173                 return throw_support(DRAGON_SCALES);
1174             if (AT(TROLL))
1175                 return throw_support(TROLL_RETURNS);
1176             if (AT(OGRE))
1177                 return throw_support(OGRE_DODGE);
1178             if (HERE(BEAR) && game.prop[BEAR] == UNTAMED_BEAR) {
1179                 /* This'll teach him to throw the axe at the bear! */
1180                 drop(AXE, game.loc);
1181                 game.fixed[AXE] = IS_FIXED;
1182                 juggle(BEAR);
1183                 state_change(AXE, AXE_LOST);
1184                 return GO_CLEAROBJ;
1185             }
1186             command->obj = INTRANSITIVE;
1187             return (attack(command));
1188         }
1189
1190         if (randrange(NDWARVES + 1) < game.dflag) {
1191             return throw_support(DWARF_DODGES);
1192         } else {
1193             long i = atdwrf(game.loc);
1194             game.dseen[i] = false;
1195             game.dloc[i] = LOC_NOWHERE;
1196             return throw_support((++game.dkill == 1) ?
1197                                  DWARF_SMOKE :
1198                                  KILLED_DWARF);
1199         }
1200     }
1201 }
1202
1203 static int wake(token_t verb, obj_t obj)
1204 /* Wake.  Only use is to disturb the dwarves. */
1205 {
1206     if (obj != DWARF ||
1207         !game.closed) {
1208         speak(actions[verb].message);
1209         return GO_CLEAROBJ;
1210     } else {
1211         rspeak(PROD_DWARF);
1212         return GO_DWARFWAKE;
1213     }
1214 }
1215
1216 static int wave(token_t verb, obj_t obj)
1217 /* Wave.  No effect unless waving rod at fissure or at bird. */
1218 {
1219     if (obj != ROD ||
1220         !TOTING(obj) ||
1221         (!HERE(BIRD) &&
1222          (game.closng ||
1223           !AT(FISSURE)))) {
1224         speak(((!TOTING(obj)) && (obj != ROD ||
1225                                   !TOTING(ROD2))) ?
1226               arbitrary_messages[ARENT_CARRYING] :
1227               actions[verb].message);
1228         return GO_CLEAROBJ;
1229     }
1230
1231     if (game.prop[BIRD] == BIRD_UNCAGED && game.loc == game.place[STEPS] && game.prop[JADE] == STATE_NOTFOUND) {
1232         drop(JADE, game.loc);
1233         game.prop[JADE] = STATE_FOUND;
1234         --game.tally;
1235         rspeak(NECKLACE_FLY);
1236         return GO_CLEAROBJ;
1237     } else {
1238         if (game.closed) {
1239             rspeak((game.prop[BIRD] == BIRD_CAGED) ?
1240                    CAGE_FLY :
1241                    FREE_FLY);
1242             return GO_DWARFWAKE;
1243         }
1244         if (game.closng ||
1245             !AT(FISSURE)) {
1246             rspeak((game.prop[BIRD] == BIRD_CAGED) ?
1247                    CAGE_FLY :
1248                    FREE_FLY);
1249             return GO_CLEAROBJ;
1250         }
1251         if (HERE(BIRD))
1252             rspeak((game.prop[BIRD] == BIRD_CAGED) ?
1253                    CAGE_FLY :
1254                    FREE_FLY);
1255
1256         state_change(FISSURE,
1257                      game.prop[FISSURE] == BRIDGED ? UNBRIDGED : BRIDGED);
1258         return GO_CLEAROBJ;
1259     }
1260 }
1261
1262 int action(struct command_t *command)
1263 /*  Analyse a verb.  Remember what it was, go back for object if second word
1264  *  unless verb is "say", which snarfs arbitrary second word.
1265  */
1266 {
1267     if (command->part == unknown) {
1268         /*  Analyse an object word.  See if the thing is here, whether
1269          *  we've got a verb yet, and so on.  Object must be here
1270          *  unless verb is "find" or "invent(ory)" (and no new verb
1271          *  yet to be analysed).  Water and oil are also funny, since
1272          *  they are never actually dropped at any location, but might
1273          *  be here inside the bottle or urn or as a feature of the
1274          *  location. */
1275         if (HERE(command->obj))
1276             /* FALL THROUGH */;
1277         else if (command->obj == GRATE) {
1278             if (game.loc == LOC_START ||
1279                 game.loc == LOC_VALLEY ||
1280                 game.loc == LOC_SLIT) {
1281                 command->obj = DPRSSN;
1282             }
1283             if (game.loc == LOC_COBBLE ||
1284                 game.loc == LOC_DEBRIS ||
1285                 game.loc == LOC_AWKWARD ||
1286                 game.loc == LOC_BIRD ||
1287                 game.loc == LOC_PITTOP) {
1288                 command->obj = ENTRNC;
1289             }
1290         } else if (command->obj == DWARF && atdwrf(game.loc) > 0)
1291             /* FALL THROUGH */;
1292         else if ((LIQUID() == command->obj && HERE(BOTTLE)) ||
1293                  command->obj == LIQLOC(game.loc))
1294             /* FALL THROUGH */;
1295         else if (command->obj == OIL && HERE(URN) && game.prop[URN] != URN_EMPTY) {
1296             command->obj = URN;
1297             /* FALL THROUGH */;
1298         } else if (command->obj == PLANT && AT(PLANT2) && game.prop[PLANT2] != PLANT_THIRSTY) {
1299             command->obj = PLANT2;
1300             /* FALL THROUGH */;
1301         } else if (command->obj == KNIFE && game.knfloc == game.loc) {
1302             game.knfloc = -1;
1303             rspeak(KNIVES_VANISH);
1304             return GO_CLEAROBJ;
1305         } else if (command->obj == ROD && HERE(ROD2)) {
1306             command->obj = ROD2;
1307             /* FALL THROUGH */;
1308         } else if ((command->verb == FIND ||
1309                     command->verb == INVENTORY) && command->wd2 <= 0)
1310             /* FALL THROUGH */;
1311         else {
1312             sspeak(NO_SEE, command->raw1);
1313             return GO_CLEAROBJ;
1314         }
1315
1316         if (command->wd2 > 0)
1317             return GO_WORD2;
1318         if (command->verb != 0)
1319             command->part = transitive;
1320     }
1321
1322     switch (command->part) {
1323     case intransitive:
1324         if (command->wd2 > 0 && command->verb != SAY)
1325             return GO_WORD2;
1326         if (command->verb == SAY)
1327             command->obj = command->wd2;
1328         if (command->obj == NO_OBJECT ||
1329             command->obj == INTRANSITIVE) {
1330             /*  Analyse an intransitive verb (ie, no object given yet). */
1331             switch (command->verb) {
1332             case CARRY:
1333                 return vcarry(command->verb, INTRANSITIVE);
1334             case  DROP:
1335                 return GO_UNKNOWN;
1336             case  SAY:
1337                 return GO_UNKNOWN;
1338             case  UNLOCK:
1339                 return lock(command->verb, INTRANSITIVE);
1340             case  NOTHING: {
1341                 rspeak(OK_MAN);
1342                 return (GO_CLEAROBJ);
1343             }
1344             case  LOCK:
1345                 return lock(command->verb, INTRANSITIVE);
1346             case  LIGHT:
1347                 return light(command->verb, INTRANSITIVE);
1348             case  EXTINGUISH:
1349                 return extinguish(command->verb, INTRANSITIVE);
1350             case  WAVE:
1351                 return GO_UNKNOWN;
1352             case  TAME:
1353                 return GO_UNKNOWN;
1354             case GO: {
1355                 speak(actions[command->verb].message);
1356                 return GO_CLEAROBJ;
1357             }
1358             case ATTACK:
1359                 command->obj = INTRANSITIVE;
1360                 return attack(command);
1361             case POUR:
1362                 return pour(command->verb, INTRANSITIVE);
1363             case EAT:
1364                 return eat(command->verb, INTRANSITIVE);
1365             case DRINK:
1366                 return drink(command->verb, INTRANSITIVE);
1367             case RUB:
1368                 return GO_UNKNOWN;
1369             case THROW:
1370                 return GO_UNKNOWN;
1371             case QUIT:
1372                 return quit();
1373             case FIND:
1374                 return GO_UNKNOWN;
1375             case INVENTORY:
1376                 return inven();
1377             case FEED:
1378                 return GO_UNKNOWN;
1379             case FILL:
1380                 return fill(command->verb, INTRANSITIVE);
1381             case BLAST:
1382                 blast();
1383                 return GO_CLEAROBJ;
1384             case SCORE:
1385                 score(scoregame);
1386                 return GO_CLEAROBJ;
1387             case FEE:
1388             case FIE:
1389             case FOE:
1390             case FOO:
1391             case FUM:
1392                 return bigwords(command->id1);
1393             case BRIEF:
1394                 return brief();
1395             case READ:
1396                 command->obj = INTRANSITIVE;
1397                 return read(*command);
1398             case BREAK:
1399                 return GO_UNKNOWN;
1400             case WAKE:
1401                 return GO_UNKNOWN;
1402             case SAVE:
1403                 return suspend();
1404             case RESUME:
1405                 return resume();
1406             case FLY:
1407                 return fly(command->verb, INTRANSITIVE);
1408             case LISTEN:
1409                 return listen();
1410             case PART:
1411                 return reservoir();
1412             default:
1413                 BUG(INTRANSITIVE_ACTION_VERB_EXCEEDS_GOTO_LIST); // LCOV_EXCL_LINE
1414             }
1415         }
1416     /* FALLTHRU */
1417     case transitive:
1418         /*  Analyse a transitive verb. */
1419         switch (command->verb) {
1420         case  CARRY:
1421             return vcarry(command->verb, command->obj);
1422         case  DROP:
1423             return discard(command->verb, command->obj);
1424         case  SAY:
1425             return say(command);
1426         case  UNLOCK:
1427             return lock(command->verb, command->obj);
1428         case  NOTHING: {
1429             rspeak(OK_MAN);
1430             return (GO_CLEAROBJ);
1431         }
1432         case  LOCK:
1433             return lock(command->verb, command->obj);
1434         case LIGHT:
1435             return light(command->verb, command->obj);
1436         case EXTINGUISH:
1437             return extinguish(command->verb, command->obj);
1438         case WAVE:
1439             return wave(command->verb, command->obj);
1440         case TAME: {
1441             speak(actions[command->verb].message);
1442             return GO_CLEAROBJ;
1443         }
1444         case GO: {
1445             speak(actions[command->verb].message);
1446             return GO_CLEAROBJ;
1447         }
1448         case ATTACK:
1449             return attack(command);
1450         case POUR:
1451             return pour(command->verb, command->obj);
1452         case EAT:
1453             return eat(command->verb, command->obj);
1454         case DRINK:
1455             return drink(command->verb, command->obj);
1456         case RUB:
1457             return rub(command->verb, command->obj);
1458         case THROW:
1459             return throw (command);
1460         case QUIT: {
1461             speak(actions[command->verb].message);
1462             return GO_CLEAROBJ;
1463         }
1464         case FIND:
1465             return find(command->verb, command->obj);
1466         case INVENTORY:
1467             return find(command->verb, command->obj);
1468         case FEED:
1469             return feed(command->verb, command->obj);
1470         case FILL:
1471             return fill(command->verb, command->obj);
1472         case BLAST:
1473             blast();
1474             return GO_CLEAROBJ;
1475         case SCORE: {
1476             speak(actions[command->verb].message);
1477             return GO_CLEAROBJ;
1478         }
1479         case FEE:
1480         case FIE:
1481         case FOE:
1482         case FOO:
1483         case FUM: {
1484             speak(actions[command->verb].message);
1485             return GO_CLEAROBJ;
1486         }
1487         case BRIEF: {
1488             speak(actions[command->verb].message);
1489             return GO_CLEAROBJ;
1490         }
1491         case READ:
1492             return read(*command);
1493         case BREAK:
1494             return vbreak(command->verb, command->obj);
1495         case WAKE:
1496             return wake(command->verb, command->obj);
1497         case SAVE: {
1498             speak(actions[command->verb].message);
1499             return GO_CLEAROBJ;
1500         }
1501         case RESUME: {
1502             speak(actions[command->verb].message);
1503             return GO_CLEAROBJ;
1504         }
1505         case FLY:
1506             return fly(command->verb, command->obj);
1507         case LISTEN: {
1508             speak(actions[command->verb].message);
1509             return GO_CLEAROBJ;
1510         }
1511         case PART:
1512             return reservoir();
1513         default:
1514             BUG(TRANSITIVE_ACTION_VERB_EXCEEDS_GOTO_LIST); // LCOV_EXCL_LINE
1515         }
1516     case unknown:
1517         /* Unknown verb, couldn't deduce object - might need hint */
1518         sspeak(WHAT_DO, command->raw1);
1519         return GO_CHECKHINT;
1520     default:
1521         BUG(SPEECHPART_NOT_TRANSITIVE_OR_INTRANSITIVE_OR_UNKNOWN); // LCOV_EXCL_LINE
1522     }
1523 }