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(verb_t, obj_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     verb_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_t i = 1; i <= NOBJECTS; i++) {
 125             if (game.place[i] == objects[DRAGON].plac ||
 126                 game.place[i] == objects[DRAGON].fixd)
 127                 move(i, 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;
 209             if (HERE(EGGS))
 210                 k = EGGS_VANISHED;
 211             else if (game.loc == objects[EGGS].plac)
 212                 k = EGGS_HERE;
 213             else
 214                 k = EGGS_DONE;
 215             move(EGGS, objects[EGGS].plac);
 216             pspeak(EGGS, look, k, true);
 217             return GO_CLEAROBJ;
 218         }
 219     } else {
 220         if (game.loc == LOC_GIANTROOM) {
 221             rspeak(START_OVER);
 222         } else {
 223             /* This is new begavior in Open Adventure - sounds better when
 224              * player isn't in the Giant Room. */
 225             rspeak(WELL_POINTLESS);
 226         }
 227         game.foobar = WORD_EMPTY;
 228         return GO_CLEAROBJ;
 229     }
 230 }
 231
 232 static void blast(void)
 233 /*  Blast.  No effect unless you've got dynamite, which is a neat trick! */
 234 {
 235     if (game.prop[ROD2] == STATE_NOTFOUND ||
 236         !game.closed)
 237         rspeak(REQUIRES_DYNAMITE);
 238     else {
 239         if (HERE(ROD2))
 240             game.bonus = SPLATTER_MESSAGE;
 241         else if (game.loc == LOC_NE)
 242             game.bonus = DEFEAT_MESSAGE;
 243         else
 244             game.bonus = VICTORY_MESSAGE;
 245         rspeak(game.bonus);
 246         terminate(endgame);
 247     }
 248 }
 249
 250 static int vbreak(verb_t verb, obj_t obj)
 251 /*  Break.  Only works for mirror in repository and, of course, the vase. */
 252 {
 253     switch (obj) {
 254     case MIRROR:
 255         if (game.closed) {
 256             rspeak(BREAK_MIRROR);
 257             return GO_DWARFWAKE;
 258         } else {
 259             rspeak(TOO_FAR);
 260             break;
 261         }
 262     case VASE:
 263         if (game.prop[VASE] == VASE_WHOLE) {
 264             if (TOTING(VASE))
 265                 drop(VASE, game.loc);
 266             state_change(VASE, VASE_BROKEN);
 267             game.fixed[VASE] = IS_FIXED;
 268             break;
 269         }
 270     default:
 271         speak(actions[verb].message);
 272     }
 273     return (GO_CLEAROBJ);
 274 }
 275
 276 static int brief(void)
 277 /*  Brief.  Intransitive only.  Suppress long descriptions after first time. */
 278 {
 279     game.abbnum = 10000;
 280     game.detail = 3;
 281     rspeak(BRIEF_CONFIRM);
 282     return GO_CLEAROBJ;
 283 }
 284
 285 static int vcarry(verb_t verb, obj_t obj)
 286 /*  Carry an object.  Special cases for bird and cage (if bird in cage, can't
 287  *  take one without the other).  Liquids also special, since they depend on
 288  *  status of bottle.  Also various side effects, etc. */
 289 {
 290     if (obj == INTRANSITIVE) {
 291         /*  Carry, no object given yet.  OK if only one object present. */
 292         if (game.atloc[game.loc] == NO_OBJECT ||
 293             game.link[game.atloc[game.loc]] != 0 ||
 294             atdwrf(game.loc) > 0)
 295             return GO_UNKNOWN;
 296         obj = game.atloc[game.loc];
 297     }
 298
 299     if (TOTING(obj)) {
 300         speak(actions[verb].message);
 301         return GO_CLEAROBJ;
 302     }
 303
 304     if (obj == MESSAG) {
 305         rspeak(REMOVE_MESSAGE);
 306         DESTROY(MESSAG);
 307         return GO_CLEAROBJ;
 308     }
 309
 310     if (game.fixed[obj] != IS_FREE) {
 311         /* Next guard tests whether plant is tiny or stashed */
 312         if (obj == PLANT && game.prop[PLANT] <= PLANT_THIRSTY) {
 313             rspeak(DEEP_ROOTS);
 314             return GO_CLEAROBJ;
 315         }
 316         if (obj == BEAR && game.prop[BEAR] == SITTING_BEAR) {
 317             rspeak(BEAR_CHAINED);
 318             return GO_CLEAROBJ;
 319         }
 320         if (obj == CHAIN && game.prop[BEAR] != UNTAMED_BEAR) {
 321             rspeak(STILL_LOCKED);
 322             return GO_CLEAROBJ;
 323         }
 324         if (obj == URN) {
 325             rspeak(URN_NOBUDGE);
 326             return GO_CLEAROBJ;
 327         }
 328         if (obj == CAVITY) {
 329             rspeak(DOUGHNUT_HOLES);
 330             return GO_CLEAROBJ;
 331         }
 332         if (obj == BLOOD) {
 333             rspeak(FEW_DROPS);
 334             return GO_CLEAROBJ;
 335         }
 336         if (obj == RUG && game.prop[RUG] == RUG_HOVER) {
 337             rspeak(RUG_HOVERS);
 338             return GO_CLEAROBJ;
 339         }
 340         if (obj == SIGN) {
 341             rspeak(HAND_PASSTHROUGH);
 342             return GO_CLEAROBJ;
 343         }
 344         rspeak(YOU_JOKING);
 345         return GO_CLEAROBJ;
 346     }
 347
 348     if (obj == WATER ||
 349         obj == OIL) {
 350         if (!HERE(BOTTLE) ||
 351             LIQUID() != obj) {
 352             if (TOTING(BOTTLE)) {
 353                 if (game.prop[BOTTLE] == EMPTY_BOTTLE) {
 354                     return (fill(verb, BOTTLE));
 355                 } else if (game.prop[BOTTLE] != EMPTY_BOTTLE)
 356                     rspeak(BOTTLE_FULL);
 357                 return GO_CLEAROBJ;
 358             }
 359             rspeak(NO_CONTAINER);
 360             return GO_CLEAROBJ;
 361         }
 362         obj = BOTTLE;
 363     }
 364
 365     if (game.holdng >= INVLIMIT) {
 366         rspeak(CARRY_LIMIT);
 367         return GO_CLEAROBJ;
 368
 369     }
 370
 371     if (obj == BIRD && game.prop[BIRD] != BIRD_CAGED && STASHED(BIRD) != BIRD_CAGED) {
 372         if (game.prop[BIRD] == BIRD_FOREST_UNCAGED) {
 373             DESTROY(BIRD);
 374             rspeak(BIRD_CRAP);
 375             return GO_CLEAROBJ;
 376         }
 377         if (!TOTING(CAGE)) {
 378             rspeak(CANNOT_CARRY);
 379             return GO_CLEAROBJ;
 380         }
 381         if (TOTING(ROD)) {
 382             rspeak(BIRD_EVADES);
 383             return GO_CLEAROBJ;
 384         }
 385         game.prop[BIRD] = BIRD_CAGED;
 386     }
 387     if ((obj == BIRD ||
 388          obj == CAGE) &&
 389         (game.prop[BIRD] == BIRD_CAGED || STASHED(BIRD) == BIRD_CAGED))
 390         /* expression maps BIRD to CAGE and CAGE to BIRD */
 391         carry(BIRD + CAGE - obj, game.loc);
 392     carry(obj, game.loc);
 393     if (obj == BOTTLE && LIQUID() != NO_OBJECT)
 394         game.place[LIQUID()] = CARRIED;
 395     if (GSTONE(obj) && game.prop[obj] != STATE_FOUND) {
 396         game.prop[obj] = STATE_FOUND;
 397         game.prop[CAVITY] = CAVITY_EMPTY;
 398     }
 399     rspeak(OK_MAN);
 400     return GO_CLEAROBJ;
 401 }
 402
 403 static int chain(verb_t verb)
 404 /* Do something to the bear's chain */
 405 {
 406     if (verb != LOCK) {
 407         if (game.prop[BEAR] == UNTAMED_BEAR) {
 408             rspeak(BEAR_BLOCKS);
 409             return GO_CLEAROBJ;
 410         }
 411         if (game.prop[CHAIN] == CHAIN_HEAP) {
 412             rspeak(ALREADY_UNLOCKED);
 413             return GO_CLEAROBJ;
 414         }
 415         game.prop[CHAIN] = CHAIN_HEAP;
 416         game.fixed[CHAIN] = IS_FREE;
 417         if (game.prop[BEAR] != BEAR_DEAD)
 418             game.prop[BEAR] = CONTENTED_BEAR;
 419
 420         switch (game.prop[BEAR]) {
 421         case BEAR_DEAD:
 422             game.fixed[BEAR] = IS_FIXED;
 423             break;
 424         default:
 425             game.fixed[BEAR] = IS_FREE;
 426         }
 427         rspeak(CHAIN_UNLOCKED);
 428         return GO_CLEAROBJ;
 429     }
 430
 431     if (game.prop[CHAIN] != CHAIN_HEAP) {
 432         rspeak(ALREADY_LOCKED);
 433         return GO_CLEAROBJ;
 434     }
 435     if (game.loc != objects[CHAIN].plac) {
 436         rspeak(NO_LOCKSITE);
 437         return GO_CLEAROBJ;
 438     }
 439
 440     game.prop[CHAIN] = CHAIN_FIXED;
 441
 442     if (TOTING(CHAIN))
 443         drop(CHAIN, game.loc);
 444     game.fixed[CHAIN] = IS_FIXED;
 445
 446     rspeak(CHAIN_LOCKED);
 447     return GO_CLEAROBJ;
 448 }
 449
 450 static int discard(verb_t verb, obj_t obj)
 451 /*  Discard object.  "Throw" also comes here for most objects.  Special cases for
 452  *  bird (might attack snake or dragon) and cage (might contain bird) and vase.
 453  *  Drop coins at vending machine for extra batteries. */
 454 {
 455     if (TOTING(ROD2) && obj == ROD && !TOTING(ROD))
 456         obj = ROD2;
 457     if (!TOTING(obj)) {
 458         speak(actions[verb].message);
 459         return GO_CLEAROBJ;
 460     }
 461     if (obj == BIRD && HERE(SNAKE)) {
 462         rspeak(BIRD_ATTACKS);
 463         if (game.closed)
 464             return GO_DWARFWAKE;
 465         DESTROY(SNAKE);
 466         /* Set game.prop for use by travel options */
 467         game.prop[SNAKE] = SNAKE_CHASED;
 468
 469     } else if ((GSTONE(obj) && AT(CAVITY) && game.prop[CAVITY] != CAVITY_FULL)) {
 470         rspeak(GEM_FITS);
 471         game.prop[obj] = STATE_IN_CAVITY;
 472         game.prop[CAVITY] = CAVITY_FULL;
 473         if (HERE(RUG) && ((obj == EMERALD && game.prop[RUG] != RUG_HOVER) ||
 474                           (obj == RUBY && game.prop[RUG] == RUG_HOVER))) {
 475             int spk;
 476             if (obj == RUBY)
 477                 spk = RUG_SETTLES;
 478             else if (TOTING(RUG))
 479                 spk = RUG_WIGGLES;
 480             else
 481                 spk = RUG_RISES;
 482             rspeak(spk);
 483             if (spk != RUG_WIGGLES) {
 484                 int k = (game.prop[RUG] == RUG_HOVER) ? RUG_FLOOR : RUG_HOVER;
 485                 game.prop[RUG] = k;
 486                 if (k == RUG_HOVER)
 487                     k = objects[SAPPH].plac;
 488                 move(RUG + NOBJECTS, k);
 489             }
 490         }
 491     } else if (obj == COINS && HERE(VEND)) {
 492         DESTROY(COINS);
 493         drop(BATTERY, game.loc);
 494         pspeak(BATTERY, look, FRESH_BATTERIES, true);
 495         return GO_CLEAROBJ;
 496     } else if (obj == BIRD && AT(DRAGON) && game.prop[DRAGON] == DRAGON_BARS) {
 497         rspeak(BIRD_BURNT);
 498         DESTROY(BIRD);
 499         return GO_CLEAROBJ;
 500     } else if (obj == BEAR && AT(TROLL)) {
 501         state_change(TROLL, TROLL_GONE);
 502         move(TROLL, LOC_NOWHERE);
 503         move(TROLL + NOBJECTS, IS_FREE);
 504         move(TROLL2, objects[TROLL].plac);
 505         move(TROLL2 + NOBJECTS, objects[TROLL].fixd);
 506         juggle(CHASM);
 507     } else if (obj != VASE ||
 508                game.loc == objects[PILLOW].plac) {
 509         rspeak(OK_MAN);
 510     } else {
 511         state_change(VASE, AT(PILLOW)
 512                      ? VASE_WHOLE
 513                      : VASE_DROPPED);
 514         if (game.prop[VASE] != VASE_WHOLE)
 515             game.fixed[VASE] = IS_FIXED;
 516     }
 517     int k = LIQUID();
 518     if (k == obj)
 519         obj = BOTTLE;
 520     if (obj == BOTTLE && k != NO_OBJECT)
 521         game.place[k] = LOC_NOWHERE;
 522     if (obj == CAGE && game.prop[BIRD] == BIRD_CAGED)
 523         drop(BIRD, game.loc);
 524     drop(obj, game.loc);
 525     if (obj != BIRD)
 526         return GO_CLEAROBJ;
 527     game.prop[BIRD] = BIRD_UNCAGED;
 528     if (FOREST(game.loc))
 529         game.prop[BIRD] = BIRD_FOREST_UNCAGED;
 530     return GO_CLEAROBJ;
 531 }
 532
 533 static int drink(verb_t verb, obj_t obj)
 534 /*  Drink.  If no object, assume water and look for it here.  If water is in
 535  *  the bottle, drink that, else must be at a water loc, so drink stream. */
 536 {
 537     if (obj == INTRANSITIVE && LIQLOC(game.loc) != WATER &&
 538         (LIQUID() != WATER || !HERE(BOTTLE))) {
 539         return GO_UNKNOWN;
 540     }
 541
 542     if (obj == BLOOD) {
 543         DESTROY(BLOOD);
 544         state_change(DRAGON, DRAGON_BLOODLESS);
 545         game.blooded = true;
 546         return GO_CLEAROBJ;
 547     }
 548
 549     if (obj != INTRANSITIVE && obj != WATER) {
 550         rspeak(RIDICULOUS_ATTEMPT);
 551         return GO_CLEAROBJ;
 552     }
 553     if (LIQUID() == WATER && HERE(BOTTLE)) {
 554         game.place[WATER] = LOC_NOWHERE;
 555         state_change(BOTTLE, EMPTY_BOTTLE);
 556         return GO_CLEAROBJ;
 557     }
 558
 559     speak(actions[verb].message);
 560     return GO_CLEAROBJ;
 561 }
 562
 563 static int eat(verb_t verb, obj_t obj)
 564 /*  Eat.  Intransitive: assume food if present, else ask what.  Transitive: food
 565  *  ok, some things lose appetite, rest are ridiculous. */
 566 {
 567     switch (obj) {
 568     case INTRANSITIVE:
 569         if (!HERE(FOOD))
 570             return GO_UNKNOWN;
 571     case FOOD:
 572         DESTROY(FOOD);
 573         rspeak(THANKS_DELICIOUS);
 574         break;
 575     case BIRD:
 576     case SNAKE:
 577     case CLAM:
 578     case OYSTER:
 579     case DWARF:
 580     case DRAGON:
 581     case TROLL:
 582     case BEAR:
 583     case OGRE:
 584         rspeak(LOST_APPETITE);
 585         break;
 586     default:
 587         speak(actions[verb].message);
 588     }
 589     return GO_CLEAROBJ;
 590 }
 591
 592 static int extinguish(verb_t verb, obj_t obj)
 593 /* Extinguish.  Lamp, urn, dragon/volcano (nice try). */
 594 {
 595     if (obj == INTRANSITIVE) {
 596         if (HERE(LAMP) && game.prop[LAMP] == LAMP_BRIGHT)
 597             obj = LAMP;
 598         if (HERE(URN) && game.prop[URN] == URN_LIT)
 599             obj = URN;
 600         if (obj == INTRANSITIVE)
 601             return GO_UNKNOWN;
 602     }
 603
 604     switch (obj) {
 605     case URN:
 606         if (game.prop[URN] != URN_EMPTY) {
 607             state_change(URN, URN_DARK);
 608         } else {
 609             pspeak(URN, change, URN_DARK, true);
 610         }
 611         break;
 612     case LAMP:
 613         state_change(LAMP, LAMP_DARK);
 614         rspeak(DARK(game.loc) ?
 615                PITCH_DARK :
 616                NO_MESSAGE);
 617         break;
 618     case DRAGON:
 619     case VOLCANO:
 620         rspeak(BEYOND_POWER);
 621         break;
 622     default:
 623         speak(actions[verb].message);
 624     }
 625     return GO_CLEAROBJ;
 626 }
 627
 628 static int feed(verb_t verb, obj_t obj)
 629 /*  Feed.  If bird, no seed.  Snake, dragon, troll: quip.  If dwarf, make him
 630  *  mad.  Bear, special. */
 631 {
 632     switch (obj) {
 633     case BIRD:
 634         rspeak(BIRD_PINING);
 635         break;
 636     case DRAGON:
 637         if (game.prop[DRAGON] != DRAGON_BARS)
 638             rspeak(RIDICULOUS_ATTEMPT);
 639         else
 640             rspeak(NOTHING_EDIBLE);
 641         break;
 642     case SNAKE:
 643         if (!game.closed && HERE(BIRD)) {
 644             DESTROY(BIRD);
 645             rspeak(BIRD_DEVOURED);
 646         } else
 647             rspeak(NOTHING_EDIBLE);
 648         break;
 649     case TROLL:
 650         rspeak(TROLL_VICES);
 651         break;
 652     case DWARF:
 653         if (HERE(FOOD)) {
 654             game.dflag += 2;
 655             rspeak(REALLY_MAD);
 656         } else
 657             speak(actions[verb].message);
 658         break;
 659     case BEAR:
 660         if (game.prop[BEAR] == BEAR_DEAD) {
 661             rspeak(RIDICULOUS_ATTEMPT);
 662             break;
 663         }
 664         if (game.prop[BEAR] == UNTAMED_BEAR) {
 665             if (HERE(FOOD)) {
 666                 DESTROY(FOOD);
 667                 game.fixed[AXE] = IS_FREE;
 668                 game.prop[AXE] = AXE_HERE;
 669                 state_change(BEAR, SITTING_BEAR);
 670             } else
 671                 rspeak(NOTHING_EDIBLE);
 672             break;
 673         }
 674         speak(actions[verb].message);
 675         break;
 676     case OGRE:
 677         if (HERE(FOOD))
 678             rspeak(OGRE_FULL);
 679         else
 680             speak(actions[verb].message);
 681         break;
 682     default:
 683         rspeak(AM_GAME);
 684     }
 685     return GO_CLEAROBJ;
 686 }
 687
 688 int fill(verb_t verb, obj_t obj)
 689 /*  Fill.  Bottle or urn must be empty, and liquid available.  (Vase
 690  *  is nasty.) */
 691 {
 692     if (obj == VASE) {
 693         if (LIQLOC(game.loc) == NO_OBJECT) {
 694             rspeak(FILL_INVALID);
 695             return GO_CLEAROBJ;
 696         }
 697         if (!TOTING(VASE)) {
 698             rspeak(ARENT_CARRYING);
 699             return GO_CLEAROBJ;
 700         }
 701         rspeak(SHATTER_VASE);
 702         game.prop[VASE] = VASE_BROKEN;
 703         game.fixed[VASE] = IS_FIXED;
 704         drop(VASE, game.loc);
 705         return GO_CLEAROBJ;
 706     }
 707
 708     if (obj == URN) {
 709         if (game.prop[URN] != URN_EMPTY) {
 710             rspeak(FULL_URN);
 711             return GO_CLEAROBJ;
 712         }
 713         if (!HERE(BOTTLE)) {
 714             rspeak(FILL_INVALID);
 715             return GO_CLEAROBJ;
 716         }
 717         int k = LIQUID();
 718         switch (k) {
 719         case WATER:
 720             game.prop[BOTTLE] = EMPTY_BOTTLE;
 721             rspeak(WATER_URN);
 722             break;
 723         case OIL:
 724             game.prop[URN] = URN_DARK;
 725             game.prop[BOTTLE] = EMPTY_BOTTLE;
 726             rspeak(OIL_URN);
 727             break;
 728         case NO_OBJECT:
 729         default:
 730             rspeak(FILL_INVALID);
 731             return GO_CLEAROBJ;
 732         }
 733         game.place[k] = LOC_NOWHERE;
 734         return GO_CLEAROBJ;
 735     }
 736     if (obj != INTRANSITIVE && obj != BOTTLE) {
 737         speak(actions[verb].message);
 738         return GO_CLEAROBJ;
 739     }
 740     if (obj == INTRANSITIVE && !HERE(BOTTLE))
 741         return GO_UNKNOWN;
 742
 743     if (HERE(URN) && game.prop[URN] != URN_EMPTY) {
 744         rspeak(URN_NOPOUR);
 745         return GO_CLEAROBJ;
 746     }
 747     if (LIQUID() != NO_OBJECT) {
 748         rspeak(BOTTLE_FULL);
 749         return GO_CLEAROBJ;
 750     }
 751     if (LIQLOC(game.loc) == NO_OBJECT) {
 752         rspeak(NO_LIQUID);
 753         return GO_CLEAROBJ;
 754     }
 755
 756     state_change(BOTTLE, (LIQLOC(game.loc) == OIL)
 757                  ? OIL_BOTTLE
 758                  : WATER_BOTTLE);
 759     if (TOTING(BOTTLE))
 760         game.place[LIQUID()] = CARRIED;
 761     return GO_CLEAROBJ;
 762 }
 763
 764 static int find(verb_t verb, obj_t obj)
 765 /* Find.  Might be carrying it, or it might be here.  Else give caveat. */
 766 {
 767     if (TOTING(obj)) {
 768         rspeak(ALREADY_CARRYING);
 769         return GO_CLEAROBJ;
 770     }
 771
 772     if (game.closed) {
 773         rspeak(NEEDED_NEARBY);
 774         return GO_CLEAROBJ;
 775     }
 776
 777     if (AT(obj) ||
 778         (LIQUID() == obj && AT(BOTTLE)) ||
 779         obj == LIQLOC(game.loc) ||
 780         (obj == DWARF && atdwrf(game.loc) > 0)) {
 781         rspeak(YOU_HAVEIT);
 782         return GO_CLEAROBJ;
 783     }
 784
 785
 786     speak(actions[verb].message);
 787     return GO_CLEAROBJ;
 788 }
 789
 790 static int fly(verb_t verb, obj_t obj)
 791 /* Fly.  Snide remarks unless hovering rug is here. */
 792 {
 793     if (obj == INTRANSITIVE) {
 794         if (!HERE(RUG)) {
 795             rspeak(FLAP_ARMS);
 796             return GO_CLEAROBJ;
 797         }
 798         if (game.prop[RUG] != RUG_HOVER) {
 799             rspeak(RUG_NOTHING2);
 800             return GO_CLEAROBJ;
 801         }
 802         obj = RUG;
 803     }
 804
 805     if (obj != RUG) {
 806         speak(actions[verb].message);
 807         return GO_CLEAROBJ;
 808     }
 809     if (game.prop[RUG] != RUG_HOVER) {
 810         rspeak(RUG_NOTHING1);
 811         return GO_CLEAROBJ;
 812     }
 813     game.oldlc2 = game.oldloc;
 814     game.oldloc = game.loc;
 815
 816     if (game.prop[SAPPH] == STATE_NOTFOUND) {
 817         game.newloc = game.place[SAPPH];
 818         rspeak(RUG_GOES);
 819     } else {
 820         game.newloc = LOC_CLIFF;
 821         rspeak(RUG_RETURNS);
 822     }
 823     return GO_TERMINATE;
 824 }
 825
 826 static int inven(void)
 827 /* Inventory. If object, treat same as find.  Else report on current burden. */
 828 {
 829     bool empty = true;
 830     for (obj_t i = 1; i <= NOBJECTS; i++) {
 831         if (i == BEAR ||
 832             !TOTING(i))
 833             continue;
 834         if (empty) {
 835             rspeak(NOW_HOLDING);
 836             empty = false;
 837         }
 838         pspeak(i, touch, -1, false);
 839     }
 840     if (TOTING(BEAR))
 841         rspeak(TAME_BEAR);
 842     if (empty)
 843         rspeak(NO_CARRY);
 844     return GO_CLEAROBJ;
 845 }
 846
 847 static int light(verb_t verb, obj_t obj)
 848 /*  Light.  Applicable only to lamp and urn. */
 849 {
 850     if (obj == INTRANSITIVE) {
 851         int selects = 0;
 852         if (HERE(LAMP) && game.prop[LAMP] == LAMP_DARK && game.limit >= 0) {
 853             obj = LAMP;
 854             selects++;
 855         }
 856         if (HERE(URN) && game.prop[URN] == URN_DARK) {
 857             obj =  URN;
 858             selects++;
 859         }
 860         if (selects != 1)
 861             return GO_UNKNOWN;
 862     }
 863
 864     switch (obj) {
 865     case URN:
 866         state_change(URN, game.prop[URN] == URN_EMPTY ?
 867                      URN_EMPTY :
 868                      URN_LIT);
 869         break;
 870     case LAMP:
 871         if (game.limit < 0) {
 872             rspeak(LAMP_OUT);
 873             break;
 874         }
 875         state_change(LAMP, LAMP_BRIGHT);
 876         if (game.wzdark)
 877             return GO_TOP;
 878         break;
 879     default:
 880         speak(actions[verb].message);
 881     }
 882     return GO_CLEAROBJ;
 883 }
 884
 885 static int listen(void)
 886 /*  Listen.  Intransitive only.  Print stuff based on object sound proprties. */
 887 {
 888     long sound = locations[game.loc].sound;
 889     if (sound != SILENT) {
 890         rspeak(sound);
 891         if (!locations[game.loc].loud)
 892             rspeak(NO_MESSAGE);
 893         return GO_CLEAROBJ;
 894     }
 895     for (obj_t i = 1; i <= NOBJECTS; i++) {
 896         if (!HERE(i) ||
 897             objects[i].sounds[0] == NULL ||
 898             game.prop[i] < 0)
 899             continue;
 900         int mi =  game.prop[i];
 901         /* FIXME: Weird magic on object states */
 902         if (i == BIRD)
 903             mi += 3 * game.blooded;
 904         long packed_zzword = token_to_packed(game.zzword);
 905         pspeak(i, hear, mi, true, packed_zzword);
 906         rspeak(NO_MESSAGE);
 907         if (i == BIRD && mi == BIRD_ENDSTATE)
 908             DESTROY(BIRD);
 909         return GO_CLEAROBJ;
 910     }
 911     rspeak(ALL_SILENT);
 912     return GO_CLEAROBJ;
 913 }
 914
 915 static int lock(verb_t verb, obj_t obj)
 916 /* Lock, unlock, no object given.  Assume various things if present. */
 917 {
 918     if (obj == INTRANSITIVE) {
 919         if (HERE(CLAM))
 920             obj = CLAM;
 921         if (HERE(OYSTER))
 922             obj = OYSTER;
 923         if (AT(DOOR))
 924             obj = DOOR;
 925         if (AT(GRATE))
 926             obj = GRATE;
 927         if (HERE(CHAIN))
 928             obj = CHAIN;
 929         if (obj == INTRANSITIVE) {
 930             rspeak(NOTHING_LOCKED);
 931             return GO_CLEAROBJ;
 932         }
 933     }
 934
 935     /*  Lock, unlock object.  Special stuff for opening clam/oyster
 936      *  and for chain. */
 937
 938     switch (obj) {
 939     case CHAIN:
 940         if (HERE(KEYS)) {
 941             return chain(verb);
 942         } else
 943             rspeak(NO_KEYS);
 944         break;
 945     case GRATE:
 946         if (HERE(KEYS)) {
 947             if (game.closng) {
 948                 rspeak(EXIT_CLOSED);
 949                 if (!game.panic)
 950                     game.clock2 = PANICTIME;
 951                 game.panic = true;
 952             } else {
 953                 state_change(GRATE, (verb == LOCK) ?
 954                              GRATE_CLOSED :
 955                              GRATE_OPEN);
 956             }
 957         } else
 958             rspeak(NO_KEYS);
 959         break;
 960     case CLAM:
 961         if (verb == LOCK)
 962             rspeak(HUH_MAN);
 963         else if (!TOTING(TRIDENT))
 964             rspeak(OYSTER_OPENER);
 965         else {
 966             DESTROY(CLAM);
 967             drop(OYSTER, game.loc);
 968             drop(PEARL, LOC_CULDESAC);
 969             rspeak(PEARL_FALLS);
 970         }
 971         break;
 972     case OYSTER:
 973         if (verb == LOCK)
 974             rspeak(HUH_MAN);
 975         else
 976             rspeak(OYSTER_OPENER);
 977         break;
 978     case DOOR:
 979         rspeak((game.prop[DOOR] == DOOR_UNRUSTED) ? OK_MAN : RUSTY_DOOR);
 980         break;
 981     case CAGE:
 982         rspeak( NO_LOCK);
 983         break;
 984     case KEYS:
 985         rspeak(CANNOT_UNLOCK);
 986         break;
 987     default:
 988         speak(actions[verb].message);
 989     }
 990
 991     return GO_CLEAROBJ;
 992 }
 993
 994 static int pour(verb_t verb, obj_t obj)
 995 /*  Pour.  If no object, or object is bottle, assume contents of bottle.
 996  *  special tests for pouring water or oil on plant or rusty door. */
 997 {
 998     if (obj == BOTTLE ||
 999         obj == INTRANSITIVE)
1000         obj = LIQUID();
1001     if (obj == NO_OBJECT)
1002         return GO_UNKNOWN;
1003     if (!TOTING(obj)) {
1004         speak(actions[verb].message);
1005         return GO_CLEAROBJ;
1006     }
1007
1008     if (obj != OIL && obj != WATER) {
1009         rspeak(CANT_POUR);
1010         return GO_CLEAROBJ;
1011     }
1012     if (HERE(URN) && game.prop[URN] == URN_EMPTY)
1013         return fill(verb, URN);
1014     game.prop[BOTTLE] = EMPTY_BOTTLE;
1015     game.place[obj] = LOC_NOWHERE;
1016     if (!(AT(PLANT) ||
1017           AT(DOOR))) {
1018         rspeak(GROUND_WET);
1019         return GO_CLEAROBJ;
1020     }
1021     if (!AT(DOOR)) {
1022         if (obj == WATER) {
1023             /* cycle through the three plant states */
1024             state_change(PLANT, MOD(game.prop[PLANT] + 1, 3));
1025             game.prop[PLANT2] = game.prop[PLANT];
1026             return GO_MOVE;
1027         } else {
1028             rspeak(SHAKING_LEAVES);
1029             return GO_CLEAROBJ;
1030         }
1031     } else {
1032         state_change(DOOR, (obj == OIL) ?
1033                      DOOR_UNRUSTED :
1034                      DOOR_RUSTED);
1035         return GO_CLEAROBJ;
1036     }
1037 }
1038
1039 static int quit(void)
1040 /*  Quit.  Intransitive only.  Verify intent and exit if that's what he wants. */
1041 {
1042     if (yes(arbitrary_messages[REALLY_QUIT], arbitrary_messages[OK_MAN], arbitrary_messages[OK_MAN]))
1043         terminate(quitgame);
1044     return GO_CLEAROBJ;
1045 }
1046
1047 static int read(struct command_t command)
1048 /*  Read.  Print stuff based on objtxt.  Oyster (?) is special case. */
1049 {
1050     if (command.obj == INTRANSITIVE) {
1051         command.obj = NO_OBJECT;
1052         for (int i = 1; i <= NOBJECTS; i++) {
1053             if (HERE(i) && objects[i].texts[0] != NULL && game.prop[i] >= 0)
1054                 command.obj = command.obj * NOBJECTS + i;
1055         }
1056         if (command.obj > NOBJECTS ||
1057             command.obj == NO_OBJECT ||
1058             DARK(game.loc))
1059             return GO_UNKNOWN;
1060     }
1061
1062     if (DARK(game.loc)) {
1063         sspeak(NO_SEE, command.raw1);
1064     } else if (command.obj == OYSTER && !game.clshnt && game.closed) {
1065         game.clshnt = yes(arbitrary_messages[CLUE_QUERY], arbitrary_messages[WAYOUT_CLUE], arbitrary_messages[OK_MAN]);
1066     } else if (objects[command.obj].texts[0] == NULL ||
1067                game.prop[command.obj] == STATE_NOTFOUND) {
1068         speak(actions[command.verb].message);
1069     } else
1070         pspeak(command.obj, study, game.prop[command.obj], true);
1071     return GO_CLEAROBJ;
1072 }
1073
1074 static int reservoir(void)
1075 /*  Z'ZZZ (word gets recomputed at startup; different each game). */
1076 {
1077     if (!AT(RESER) && game.loc != LOC_RESBOTTOM) {
1078         rspeak(NOTHING_HAPPENS);
1079         return GO_CLEAROBJ;
1080     } else {
1081         state_change(RESER,
1082                      game.prop[RESER] == WATERS_PARTED ? WATERS_UNPARTED : WATERS_PARTED);
1083         if (AT(RESER))
1084             return GO_CLEAROBJ;
1085         else {
1086             game.oldlc2 = game.loc;
1087             game.newloc = LOC_NOWHERE;
1088             rspeak(NOT_BRIGHT);
1089             return GO_TERMINATE;
1090         }
1091     }
1092 }
1093
1094 static int rub(verb_t verb, obj_t obj)
1095 /* Rub.  Yields various snide remarks except for lit urn. */
1096 {
1097     if (obj == URN && game.prop[URN] == URN_LIT) {
1098         DESTROY(URN);
1099         drop(AMBER, game.loc);
1100         game.prop[AMBER] = AMBER_IN_ROCK;
1101         --game.tally;
1102         drop(CAVITY, game.loc);
1103         rspeak(URN_GENIES);
1104     } else if (obj != LAMP) {
1105         rspeak(PECULIAR_NOTHING);
1106     } else {
1107         speak(actions[verb].message);
1108     }
1109     return GO_CLEAROBJ;
1110 }
1111
1112 static int say(struct command_t *command)
1113 /* Say.  Echo WD2 (or WD1 if no WD2 (SAY WHAT?, etc.).)  Magic words override. */
1114 {
1115     if (command->wd2 > 0) {
1116         command->wd1 = command->wd2;
1117         strcpy(command->raw1, command->raw2);
1118     }
1119     char word1[TOKLEN + 1];
1120     packed_to_token(command->wd1, word1);
1121     int wd = (int) get_vocab_id(word1);
1122     if (wd == MOTION_WORD(XYZZY) ||
1123         wd == MOTION_WORD(PLUGH) ||
1124         wd == MOTION_WORD(PLOVER) ||
1125         wd == ACTION_WORD(FEE) ||
1126         wd == ACTION_WORD(FIE) ||
1127         wd == ACTION_WORD(FOE) ||
1128         wd == ACTION_WORD(FOO) ||
1129         wd == ACTION_WORD(FUM) ||
1130         wd == ACTION_WORD(PART)) {
1131         /* FIXME: scribbles on the interpreter's command block */
1132         wordclear(&command->wd2);
1133         return GO_LOOKUP;
1134     }
1135     sspeak(OKEY_DOKEY, command->raw1);
1136     return GO_CLEAROBJ;
1137 }
1138
1139 static int throw_support(long spk)
1140 {
1141     rspeak(spk);
1142     drop(AXE, game.loc);
1143     return GO_MOVE;
1144 }
1145
1146 static int throw (struct command_t *command)
1147 /*  Throw.  Same as discard unless axe.  Then same as attack except
1148  *  ignore bird, and if dwarf is present then one might be killed.
1149  *  (Only way to do so!)  Axe also special for dragon, bear, and
1150  *  troll.  Treasures special for troll. */
1151 {
1152     if (!TOTING(command->obj)) {
1153         speak(actions[command->verb].message);
1154         return GO_CLEAROBJ;
1155     }
1156     if (objects[command->obj].is_treasure && AT(TROLL)) {
1157         /*  Snarf a treasure for the troll. */
1158         drop(command->obj, LOC_NOWHERE);
1159         move(TROLL, LOC_NOWHERE);
1160         move(TROLL + NOBJECTS, IS_FREE);
1161         drop(TROLL2, objects[TROLL].plac);
1162         drop(TROLL2 + NOBJECTS, objects[TROLL].fixd);
1163         juggle(CHASM);
1164         rspeak(TROLL_SATISFIED);
1165         return GO_CLEAROBJ;
1166     }
1167     if (command->obj == FOOD && HERE(BEAR)) {
1168         /* But throwing food is another story. */
1169         command->obj = BEAR;
1170         return (feed(command->verb, command->obj));
1171     }
1172     if (command->obj != AXE)
1173         return (discard(command->verb, command->obj));
1174     else {
1175         if (atdwrf(game.loc) <= 0) {
1176             if (AT(DRAGON) && game.prop[DRAGON] == DRAGON_BARS)
1177                 return throw_support(DRAGON_SCALES);
1178             if (AT(TROLL))
1179                 return throw_support(TROLL_RETURNS);
1180             if (AT(OGRE))
1181                 return throw_support(OGRE_DODGE);
1182             if (HERE(BEAR) && game.prop[BEAR] == UNTAMED_BEAR) {
1183                 /* This'll teach him to throw the axe at the bear! */
1184                 drop(AXE, game.loc);
1185                 game.fixed[AXE] = IS_FIXED;
1186                 juggle(BEAR);
1187                 state_change(AXE, AXE_LOST);
1188                 return GO_CLEAROBJ;
1189             }
1190             command->obj = INTRANSITIVE;
1191             return (attack(command));
1192         }
1193
1194         if (randrange(NDWARVES + 1) < game.dflag) {
1195             return throw_support(DWARF_DODGES);
1196         } else {
1197             long i = atdwrf(game.loc);
1198             game.dseen[i] = false;
1199             game.dloc[i] = LOC_NOWHERE;
1200             return throw_support((++game.dkill == 1) ?
1201                                  DWARF_SMOKE :
1202                                  KILLED_DWARF);
1203         }
1204     }
1205 }
1206
1207 static int wake(verb_t verb, obj_t obj)
1208 /* Wake.  Only use is to disturb the dwarves. */
1209 {
1210     if (obj != DWARF ||
1211         !game.closed) {
1212         speak(actions[verb].message);
1213         return GO_CLEAROBJ;
1214     } else {
1215         rspeak(PROD_DWARF);
1216         return GO_DWARFWAKE;
1217     }
1218 }
1219
1220 static int wave(verb_t verb, obj_t obj)
1221 /* Wave.  No effect unless waving rod at fissure or at bird. */
1222 {
1223     if (obj != ROD ||
1224         !TOTING(obj) ||
1225         (!HERE(BIRD) &&
1226          (game.closng ||
1227           !AT(FISSURE)))) {
1228         speak(((!TOTING(obj)) && (obj != ROD ||
1229                                   !TOTING(ROD2))) ?
1230               arbitrary_messages[ARENT_CARRYING] :
1231               actions[verb].message);
1232         return GO_CLEAROBJ;
1233     }
1234
1235     if (game.prop[BIRD] == BIRD_UNCAGED && game.loc == game.place[STEPS] && game.prop[JADE] == STATE_NOTFOUND) {
1236         drop(JADE, game.loc);
1237         game.prop[JADE] = STATE_FOUND;
1238         --game.tally;
1239         rspeak(NECKLACE_FLY);
1240         return GO_CLEAROBJ;
1241     } else {
1242         if (game.closed) {
1243             rspeak((game.prop[BIRD] == BIRD_CAGED) ?
1244                    CAGE_FLY :
1245                    FREE_FLY);
1246             return GO_DWARFWAKE;
1247         }
1248         if (game.closng ||
1249             !AT(FISSURE)) {
1250             rspeak((game.prop[BIRD] == BIRD_CAGED) ?
1251                    CAGE_FLY :
1252                    FREE_FLY);
1253             return GO_CLEAROBJ;
1254         }
1255         if (HERE(BIRD))
1256             rspeak((game.prop[BIRD] == BIRD_CAGED) ?
1257                    CAGE_FLY :
1258                    FREE_FLY);
1259
1260         state_change(FISSURE,
1261                      game.prop[FISSURE] == BRIDGED ? UNBRIDGED : BRIDGED);
1262         return GO_CLEAROBJ;
1263     }
1264 }
1265
1266 int action(struct command_t *command)
1267 /*  Analyse a verb.  Remember what it was, go back for object if second word
1268  *  unless verb is "say", which snarfs arbitrary second word.
1269  */
1270 {
1271     if (command->part == unknown) {
1272         /*  Analyse an object word.  See if the thing is here, whether
1273          *  we've got a verb yet, and so on.  Object must be here
1274          *  unless verb is "find" or "invent(ory)" (and no new verb
1275          *  yet to be analysed).  Water and oil are also funny, since
1276          *  they are never actually dropped at any location, but might
1277          *  be here inside the bottle or urn or as a feature of the
1278          *  location. */
1279         if (HERE(command->obj))
1280             /* FALL THROUGH */;
1281         else if (command->obj == GRATE) {
1282             if (game.loc == LOC_START ||
1283                 game.loc == LOC_VALLEY ||
1284                 game.loc == LOC_SLIT) {
1285                 command->obj = DPRSSN;
1286             }
1287             if (game.loc == LOC_COBBLE ||
1288                 game.loc == LOC_DEBRIS ||
1289                 game.loc == LOC_AWKWARD ||
1290                 game.loc == LOC_BIRD ||
1291                 game.loc == LOC_PITTOP) {
1292                 command->obj = ENTRNC;
1293             }
1294         } else if (command->obj == DWARF && atdwrf(game.loc) > 0)
1295             /* FALL THROUGH */;
1296         else if ((LIQUID() == command->obj && HERE(BOTTLE)) ||
1297                  command->obj == LIQLOC(game.loc))
1298             /* FALL THROUGH */;
1299         else if (command->obj == OIL && HERE(URN) && game.prop[URN] != URN_EMPTY) {
1300             command->obj = URN;
1301             /* FALL THROUGH */;
1302         } else if (command->obj == PLANT && AT(PLANT2) && game.prop[PLANT2] != PLANT_THIRSTY) {
1303             command->obj = PLANT2;
1304             /* FALL THROUGH */;
1305         } else if (command->obj == KNIFE && game.knfloc == game.loc) {
1306             game.knfloc = -1;
1307             rspeak(KNIVES_VANISH);
1308             return GO_CLEAROBJ;
1309         } else if (command->obj == ROD && HERE(ROD2)) {
1310             command->obj = ROD2;
1311             /* FALL THROUGH */;
1312         } else if ((command->verb == FIND ||
1313                     command->verb == INVENTORY) && command->wd2 <= 0)
1314             /* FALL THROUGH */;
1315         else {
1316             sspeak(NO_SEE, command->raw1);
1317             return GO_CLEAROBJ;
1318         }
1319
1320         if (command->wd2 > 0)
1321             return GO_WORD2;
1322         if (command->verb != 0)
1323             command->part = transitive;
1324     }
1325
1326     switch (command->part) {
1327     case intransitive:
1328         if (command->wd2 > 0 && command->verb != SAY)
1329             return GO_WORD2;
1330         if (command->verb == SAY)
1331             command->obj = command->wd2;
1332         if (command->obj == NO_OBJECT ||
1333             command->obj == INTRANSITIVE) {
1334             /*  Analyse an intransitive verb (ie, no object given yet). */
1335             switch (command->verb) {
1336             case CARRY:
1337                 return vcarry(command->verb, INTRANSITIVE);
1338             case  DROP:
1339                 return GO_UNKNOWN;
1340             case  SAY:
1341                 return GO_UNKNOWN;
1342             case  UNLOCK:
1343                 return lock(command->verb, INTRANSITIVE);
1344             case  NOTHING: {
1345                 rspeak(OK_MAN);
1346                 return (GO_CLEAROBJ);
1347             }
1348             case  LOCK:
1349                 return lock(command->verb, INTRANSITIVE);
1350             case  LIGHT:
1351                 return light(command->verb, INTRANSITIVE);
1352             case  EXTINGUISH:
1353                 return extinguish(command->verb, INTRANSITIVE);
1354             case  WAVE:
1355                 return GO_UNKNOWN;
1356             case  TAME:
1357                 return GO_UNKNOWN;
1358             case GO: {
1359                 speak(actions[command->verb].message);
1360                 return GO_CLEAROBJ;
1361             }
1362             case ATTACK:
1363                 command->obj = INTRANSITIVE;
1364                 return attack(command);
1365             case POUR:
1366                 return pour(command->verb, INTRANSITIVE);
1367             case EAT:
1368                 return eat(command->verb, INTRANSITIVE);
1369             case DRINK:
1370                 return drink(command->verb, INTRANSITIVE);
1371             case RUB:
1372                 return GO_UNKNOWN;
1373             case THROW:
1374                 return GO_UNKNOWN;
1375             case QUIT:
1376                 return quit();
1377             case FIND:
1378                 return GO_UNKNOWN;
1379             case INVENTORY:
1380                 return inven();
1381             case FEED:
1382                 return GO_UNKNOWN;
1383             case FILL:
1384                 return fill(command->verb, INTRANSITIVE);
1385             case BLAST:
1386                 blast();
1387                 return GO_CLEAROBJ;
1388             case SCORE:
1389                 score(scoregame);
1390                 return GO_CLEAROBJ;
1391             case FEE:
1392             case FIE:
1393             case FOE:
1394             case FOO:
1395             case FUM:
1396                 return bigwords(command->id1);
1397             case BRIEF:
1398                 return brief();
1399             case READ:
1400                 command->obj = INTRANSITIVE;
1401                 return read(*command);
1402             case BREAK:
1403                 return GO_UNKNOWN;
1404             case WAKE:
1405                 return GO_UNKNOWN;
1406             case SAVE:
1407                 return suspend();
1408             case RESUME:
1409                 return resume();
1410             case FLY:
1411                 return fly(command->verb, INTRANSITIVE);
1412             case LISTEN:
1413                 return listen();
1414             case PART:
1415                 return reservoir();
1416             default:
1417                 BUG(INTRANSITIVE_ACTION_VERB_EXCEEDS_GOTO_LIST); // LCOV_EXCL_LINE
1418             }
1419         }
1420     /* FALLTHRU */
1421     case transitive:
1422         /*  Analyse a transitive verb. */
1423         switch (command->verb) {
1424         case  CARRY:
1425             return vcarry(command->verb, command->obj);
1426         case  DROP:
1427             return discard(command->verb, command->obj);
1428         case  SAY:
1429             return say(command);
1430         case  UNLOCK:
1431             return lock(command->verb, command->obj);
1432         case  NOTHING: {
1433             rspeak(OK_MAN);
1434             return (GO_CLEAROBJ);
1435         }
1436         case  LOCK:
1437             return lock(command->verb, command->obj);
1438         case LIGHT:
1439             return light(command->verb, command->obj);
1440         case EXTINGUISH:
1441             return extinguish(command->verb, command->obj);
1442         case WAVE:
1443             return wave(command->verb, command->obj);
1444         case TAME: {
1445             speak(actions[command->verb].message);
1446             return GO_CLEAROBJ;
1447         }
1448         case GO: {
1449             speak(actions[command->verb].message);
1450             return GO_CLEAROBJ;
1451         }
1452         case ATTACK:
1453             return attack(command);
1454         case POUR:
1455             return pour(command->verb, command->obj);
1456         case EAT:
1457             return eat(command->verb, command->obj);
1458         case DRINK:
1459             return drink(command->verb, command->obj);
1460         case RUB:
1461             return rub(command->verb, command->obj);
1462         case THROW:
1463             return throw (command);
1464         case QUIT: {
1465             speak(actions[command->verb].message);
1466             return GO_CLEAROBJ;
1467         }
1468         case FIND:
1469             return find(command->verb, command->obj);
1470         case INVENTORY:
1471             return find(command->verb, command->obj);
1472         case FEED:
1473             return feed(command->verb, command->obj);
1474         case FILL:
1475             return fill(command->verb, command->obj);
1476         case BLAST:
1477             blast();
1478             return GO_CLEAROBJ;
1479         case SCORE: {
1480             speak(actions[command->verb].message);
1481             return GO_CLEAROBJ;
1482         }
1483         case FEE:
1484         case FIE:
1485         case FOE:
1486         case FOO:
1487         case FUM: {
1488             speak(actions[command->verb].message);
1489             return GO_CLEAROBJ;
1490         }
1491         case BRIEF: {
1492             speak(actions[command->verb].message);
1493             return GO_CLEAROBJ;
1494         }
1495         case READ:
1496             return read(*command);
1497         case BREAK:
1498             return vbreak(command->verb, command->obj);
1499         case WAKE:
1500             return wake(command->verb, command->obj);
1501         case SAVE: {
1502             speak(actions[command->verb].message);
1503             return GO_CLEAROBJ;
1504         }
1505         case RESUME: {
1506             speak(actions[command->verb].message);
1507             return GO_CLEAROBJ;
1508         }
1509         case FLY:
1510             return fly(command->verb, command->obj);
1511         case LISTEN: {
1512             speak(actions[command->verb].message);
1513             return GO_CLEAROBJ;
1514         }
1515         case PART:
1516             return reservoir();
1517         default:
1518             BUG(TRANSITIVE_ACTION_VERB_EXCEEDS_GOTO_LIST); // LCOV_EXCL_LINE
1519         }
1520     case unknown:
1521         /* Unknown verb, couldn't deduce object - might need hint */
1522         sspeak(WHAT_DO, command->raw1);
1523         return GO_CHECKHINT;
1524     default:
1525         BUG(SPEECHPART_NOT_TRANSITIVE_OR_INTRANSITIVE_OR_UNKNOWN); // LCOV_EXCL_LINE
1526     }
1527 }