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