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     vocab_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, 0);
 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     {
 195       game.foobar = id;
 196       if ((id != ACTION_WORD(FOO)) && (id != ACTION_WORD(FUM))) {
 197         rspeak(OK_MAN);
 198         return GO_CLEAROBJ;
 199       }
 200       game.foobar = WORD_EMPTY;
 201       if (game.place[EGGS] == objects[EGGS].plac ||
 202           (TOTING(EGGS) && game.loc == objects[EGGS].plac)) {
 203         rspeak(NOTHING_HAPPENS);
 204         return GO_CLEAROBJ;
 205       } else {
 206         /*  Bring back troll if we steal the eggs back from him before
 207          *  crossing. */
 208         if (game.place[EGGS] == LOC_NOWHERE && game.place[TROLL] == LOC_NOWHERE && game.prop[TROLL] == TROLL_UNPAID)
 209           game.prop[TROLL] = TROLL_PAIDONCE;
 210         int k = EGGS_DONE;
 211         if (HERE(EGGS))
 212           k = EGGS_VANISHED;
 213         if (game.loc == objects[EGGS].plac)
 214           k = EGGS_HERE;
 215         move(EGGS, objects[EGGS].plac);
 216         pspeak(EGGS, look, k, true);
 217         return GO_CLEAROBJ;
 218       }
 219     }
 220   else
 221     {
 222       if (game.loc == LOC_GIANTROOM) {
 223         rspeak(START_OVER);
 224       } else {
 225           /* This is new begavior in Open Adventure - sounds better when
 226            * player isn't in the Giant Room. */
 227         rspeak(WELL_POINTLESS);
 228       }
 229       game.foobar = WORD_EMPTY;
 230       return GO_CLEAROBJ;
 231     }
 232 }
 233
 234 static void blast(void)
 235 /*  Blast.  No effect unless you've got dynamite, which is a neat trick! */
 236 {
 237     if (game.prop[ROD2] < 0 ||
 238         !game.closed)
 239         rspeak(REQUIRES_DYNAMITE);
 240     else {
 241         game.bonus = VICTORY_MESSAGE;
 242         if (game.loc == LOC_NE)
 243             game.bonus = DEFEAT_MESSAGE;
 244         if (HERE(ROD2))
 245             game.bonus = SPLATTER_MESSAGE;
 246         rspeak(game.bonus);
 247         terminate(endgame);
 248     }
 249 }
 250
 251 static int vbreak(token_t verb, token_t obj)
 252 /*  Break.  Only works for mirror in repository and, of course, the vase. */
 253 {
 254     if (obj == MIRROR) {
 255         if (game.closed) {
 256             rspeak(BREAK_MIRROR);
 257             return GO_DWARFWAKE;
 258         } else {
 259             rspeak(TOO_FAR);
 260             return GO_CLEAROBJ;
 261         }
 262     }
 263     if (obj == VASE && 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         return GO_CLEAROBJ;
 269     }
 270     speak(actions[verb].message);
 271     return (GO_CLEAROBJ);
 272 }
 273
 274 static int brief(void)
 275 /*  Brief.  Intransitive only.  Suppress long descriptions after first time. */
 276 {
 277     game.abbnum = 10000;
 278     game.detail = 3;
 279     rspeak(BRIEF_CONFIRM);
 280     return GO_CLEAROBJ;
 281 }
 282
 283 static int vcarry(token_t verb, token_t obj)
 284 /*  Carry an object.  Special cases for bird and cage (if bird in cage, can't
 285  *  take one without the other).  Liquids also special, since they depend on
 286  *  status of bottle.  Also various side effects, etc. */
 287 {
 288     if (obj == INTRANSITIVE) {
 289         /*  Carry, no object given yet.  OK if only one object present. */
 290         if (game.atloc[game.loc] == 0 ||
 291             game.link[game.atloc[game.loc]] != 0 ||
 292             atdwrf(game.loc) > 0)
 293             return GO_UNKNOWN;
 294         obj = game.atloc[game.loc];
 295     }
 296
 297     if (TOTING(obj)) {
 298         rspeak(ALREADY_CARRYING);
 299         return GO_CLEAROBJ;
 300     }
 301
 302     if (obj == MESSAG) {
 303         rspeak(REMOVE_MESSAGE);
 304         DESTROY(MESSAG);
 305         return GO_CLEAROBJ;
 306     }
 307
 308     if (game.fixed[obj] != IS_FREE) {
 309         /* Next guard tests whether plant is tiny or stashed */
 310         if (obj == PLANT && game.prop[PLANT] <= PLANT_THIRSTY) {
 311             rspeak(DEEP_ROOTS);
 312             return GO_CLEAROBJ;
 313         }
 314         if (obj == BEAR && game.prop[BEAR] == SITTING_BEAR) {
 315             rspeak(BEAR_CHAINED);
 316             return GO_CLEAROBJ;
 317         }
 318         if (obj == CHAIN && game.prop[BEAR] != UNTAMED_BEAR) {
 319             rspeak(STILL_LOCKED);
 320             return GO_CLEAROBJ;
 321         }
 322         if (obj == URN) {
 323             rspeak(URN_NOBUDGE);
 324             return GO_CLEAROBJ;
 325         }
 326         if (obj == CAVITY) {
 327             rspeak(DOUGHNUT_HOLES);
 328             return GO_CLEAROBJ;
 329         }
 330         if (obj == BLOOD) {
 331             rspeak(FEW_DROPS);
 332             return GO_CLEAROBJ;
 333         }
 334         if (obj == RUG && game.prop[RUG] == RUG_HOVER) {
 335             rspeak(RUG_HOVERS);
 336             return GO_CLEAROBJ;
 337         }
 338         if (obj == SIGN) {
 339             rspeak(HAND_PASSTHROUGH);
 340             return GO_CLEAROBJ;
 341         }
 342         rspeak(YOU_JOKING);
 343         return GO_CLEAROBJ;
 344     }
 345
 346     if (obj == WATER ||
 347         obj == OIL) {
 348         if (!HERE(BOTTLE) ||
 349             LIQUID() != obj) {
 350             if (TOTING(BOTTLE)) {
 351                 if (game.prop[BOTTLE] == EMPTY_BOTTLE) {
 352                     return (fill(verb, BOTTLE));
 353                 } else if (game.prop[BOTTLE] != EMPTY_BOTTLE)
 354                     rspeak(BOTTLE_FULL);
 355                 return GO_CLEAROBJ;
 356             }
 357             rspeak(NO_CONTAINER);
 358             return GO_CLEAROBJ;
 359         }
 360         obj = BOTTLE;
 361     }
 362
 363     if (game.holdng >= INVLIMIT) {
 364         rspeak(CARRY_LIMIT);
 365         return GO_CLEAROBJ;
 366
 367     }
 368
 369     if (obj == BIRD && game.prop[BIRD] != BIRD_CAGED && STASHED(BIRD) != BIRD_CAGED) {
 370         if (game.prop[BIRD] == BIRD_FOREST_UNCAGED) {
 371             DESTROY(BIRD);
 372             rspeak(BIRD_CRAP);
 373             return GO_CLEAROBJ;
 374         }
 375         if (!TOTING(CAGE)) {
 376             rspeak(CANNOT_CARRY);
 377             return GO_CLEAROBJ;
 378         }
 379         if (TOTING(ROD)) {
 380             rspeak(BIRD_EVADES);
 381             return GO_CLEAROBJ;
 382         }
 383         game.prop[BIRD] = BIRD_CAGED;
 384     }
 385     if ((obj == BIRD ||
 386          obj == CAGE) &&
 387         (game.prop[BIRD] == BIRD_CAGED || STASHED(BIRD) == BIRD_CAGED))
 388         /* expression maps BIRD to CAGE and CAGE to BIRD */
 389         carry(BIRD + CAGE - obj, game.loc);
 390     carry(obj, game.loc);
 391     if (obj == BOTTLE && LIQUID() != NO_OBJECT)
 392         game.place[LIQUID()] = CARRIED;
 393     if (GSTONE(obj) && game.prop[obj] != STATE_FOUND) {
 394         game.prop[obj] = STATE_FOUND;
 395         game.prop[CAVITY] = CAVITY_EMPTY;
 396     }
 397     rspeak(OK_MAN);
 398     return GO_CLEAROBJ;
 399 }
 400
 401 static int chain(token_t verb)
 402 /* Do something to the bear's chain */
 403 {
 404     if (verb != LOCK) {
 405         if (game.prop[BEAR] == UNTAMED_BEAR) {
 406             rspeak(BEAR_BLOCKS);
 407             return GO_CLEAROBJ;
 408         }
 409         if (game.prop[CHAIN] == CHAIN_HEAP) {
 410             rspeak(ALREADY_UNLOCKED);
 411             return GO_CLEAROBJ;
 412         }
 413         game.prop[CHAIN] = CHAIN_HEAP;
 414         game.fixed[CHAIN] = IS_FREE;
 415         if (game.prop[BEAR] != BEAR_DEAD)
 416             game.prop[BEAR] = CONTENTED_BEAR;
 417
 418         switch (game.prop[BEAR]) {
 419         case BEAR_DEAD:
 420             game.fixed[BEAR] = IS_FIXED;
 421             break;
 422         default:
 423             game.fixed[BEAR] = IS_FREE;
 424         }
 425         rspeak(CHAIN_UNLOCKED);
 426         return GO_CLEAROBJ;
 427     }
 428
 429     if (game.prop[CHAIN] != CHAIN_HEAP) {
 430         rspeak(ALREADY_LOCKED);
 431         return GO_CLEAROBJ;
 432     }
 433     if (game.loc != objects[CHAIN].plac) {
 434         rspeak(NO_LOCKSITE);
 435         return GO_CLEAROBJ;
 436     }
 437
 438     game.prop[CHAIN] = CHAIN_FIXED;
 439
 440     if (TOTING(CHAIN))
 441         drop(CHAIN, game.loc);
 442     game.fixed[CHAIN] = IS_FIXED;
 443
 444     rspeak(CHAIN_LOCKED);
 445     return GO_CLEAROBJ;
 446 }
 447
 448 static int discard(token_t verb, token_t obj, bool just_do_it)
 449 /*  Discard object.  "Throw" also comes here for most objects.  Special cases for
 450  *  bird (might attack snake or dragon) and cage (might contain bird) and vase.
 451  *  Drop coins at vending machine for extra batteries. */
 452 {
 453     if (!just_do_it) {
 454         if (TOTING(ROD2) && obj == ROD && !TOTING(ROD))
 455             obj = ROD2;
 456         if (!TOTING(obj)) {
 457             speak(actions[verb].message);
 458             return GO_CLEAROBJ;
 459         }
 460         if (obj == BIRD && HERE(SNAKE)) {
 461             rspeak(BIRD_ATTACKS);
 462             if (game.closed)
 463                 return GO_DWARFWAKE;
 464             DESTROY(SNAKE);
 465             /* Set game.prop for use by travel options */
 466             game.prop[SNAKE] = SNAKE_CHASED;
 467
 468         } else if ((GSTONE(obj) && AT(CAVITY) && game.prop[CAVITY] != CAVITY_FULL)) {
 469             rspeak(GEM_FITS);
 470             game.prop[obj] = STATE_IN_CAVITY;
 471             game.prop[CAVITY] = CAVITY_FULL;
 472             if (HERE(RUG) && ((obj == EMERALD && game.prop[RUG] != RUG_HOVER) ||
 473                               (obj == RUBY && game.prop[RUG] == RUG_HOVER))) {
 474                 int spk = RUG_RISES;
 475                 if (TOTING(RUG))
 476                     spk = RUG_WIGGLES;
 477                 if (obj == RUBY)
 478                     spk = RUG_SETTLES;
 479                 rspeak(spk);
 480                 if (spk != RUG_WIGGLES) {
 481                     int k = (game.prop[RUG] == RUG_HOVER) ? RUG_FLOOR : RUG_HOVER;
 482                     game.prop[RUG] = k;
 483                     if (k == RUG_HOVER)
 484                         k = objects[SAPPH].plac;
 485                     move(RUG + NOBJECTS, k);
 486                 }
 487             }
 488         } else if (obj == COINS && HERE(VEND)) {
 489             DESTROY(COINS);
 490             drop(BATTERY, game.loc);
 491             pspeak(BATTERY, look, FRESH_BATTERIES, true);
 492             return GO_CLEAROBJ;
 493         } else if (obj == BIRD && AT(DRAGON) && game.prop[DRAGON] == DRAGON_BARS) {
 494             rspeak(BIRD_BURNT);
 495             DESTROY(BIRD);
 496             return GO_CLEAROBJ;
 497         } else if (obj == BEAR && AT(TROLL)) {
 498             state_change(TROLL, TROLL_GONE);
 499             move(TROLL, LOC_NOWHERE);
 500             move(TROLL + NOBJECTS, LOC_NOWHERE);
 501             move(TROLL2, objects[TROLL].plac);
 502             move(TROLL2 + NOBJECTS, objects[TROLL].fixd);
 503             juggle(CHASM);
 504         } else if (obj != VASE ||
 505                    game.loc == objects[PILLOW].plac) {
 506             rspeak(OK_MAN);
 507         } else {
 508             state_change(VASE, AT(PILLOW)
 509                          ? VASE_WHOLE
 510                          : VASE_DROPPED);
 511             if (game.prop[VASE] != VASE_WHOLE)
 512                 game.fixed[VASE] = IS_FIXED;
 513         }
 514     }
 515     int k = LIQUID();
 516     if (k == obj)
 517         obj = BOTTLE;
 518     if (obj == BOTTLE && k != NO_OBJECT)
 519         game.place[k] = LOC_NOWHERE;
 520     if (obj == CAGE && game.prop[BIRD] == BIRD_CAGED)
 521         drop(BIRD, game.loc);
 522     drop(obj, game.loc);
 523     if (obj != BIRD)
 524         return GO_CLEAROBJ;
 525     game.prop[BIRD] = BIRD_UNCAGED;
 526     if (FOREST(game.loc))
 527         game.prop[BIRD] = BIRD_FOREST_UNCAGED;
 528     return GO_CLEAROBJ;
 529 }
 530
 531 static int drink(token_t verb, token_t obj)
 532 /*  Drink.  If no object, assume water and look for it here.  If water is in
 533  *  the bottle, drink that, else must be at a water loc, so drink stream. */
 534 {
 535     if (obj == NO_OBJECT && LIQLOC(game.loc) != WATER &&
 536         (LIQUID() != WATER || !HERE(BOTTLE))) {
 537         return GO_UNKNOWN;
 538     }
 539
 540     if (obj == BLOOD) {
 541         DESTROY(BLOOD);
 542         state_change(DRAGON, DRAGON_BLOODLESS);
 543         game.blooded = true;
 544         return GO_CLEAROBJ;
 545     }
 546
 547     if (obj != NO_OBJECT && obj != WATER) {
 548         rspeak(RIDICULOUS_ATTEMPT);
 549         return GO_CLEAROBJ;
 550     }
 551     if (LIQUID() == WATER && HERE(BOTTLE)) {
 552         game.place[WATER] = LOC_NOWHERE;
 553         state_change(BOTTLE, EMPTY_BOTTLE);
 554         return GO_CLEAROBJ;
 555     }
 556
 557     speak(actions[verb].message);
 558     return GO_CLEAROBJ;
 559 }
 560
 561 static int eat(token_t verb, token_t obj)
 562 /*  Eat.  Intransitive: assume food if present, else ask what.  Transitive: food
 563  *  ok, some things lose appetite, rest are ridiculous. */
 564 {
 565     if (obj == INTRANSITIVE) {
 566         if (!HERE(FOOD))
 567             return GO_UNKNOWN;
 568         DESTROY(FOOD);
 569         rspeak(THANKS_DELICIOUS);
 570         return GO_CLEAROBJ;
 571     }
 572     if (obj == FOOD) {
 573         DESTROY(FOOD);
 574         rspeak(THANKS_DELICIOUS);
 575         return GO_CLEAROBJ;
 576     }
 577     if (obj == BIRD ||
 578         obj == SNAKE ||
 579         obj == CLAM ||
 580         obj == OYSTER ||
 581         obj == DWARF ||
 582         obj == DRAGON ||
 583         obj == TROLL ||
 584         obj == BEAR ||
 585         obj == OGRE) {
 586         rspeak(LOST_APPETITE);
 587         return GO_CLEAROBJ;
 588     }
 589     speak(actions[verb].message);
 590     return GO_CLEAROBJ;
 591 }
 592
 593 static int extinguish(token_t verb, int obj)
 594 /* Extinguish.  Lamp, urn, dragon/volcano (nice try). */
 595 {
 596     if (obj == INTRANSITIVE) {
 597         if (HERE(LAMP) && game.prop[LAMP] == LAMP_BRIGHT)
 598             obj = LAMP;
 599         if (HERE(URN) && game.prop[URN] == URN_LIT)
 600             obj = URN;
 601         if (obj == INTRANSITIVE)
 602             return GO_UNKNOWN;
 603     }
 604
 605     if (obj == 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         return GO_CLEAROBJ;
 612     }
 613
 614     if (obj == LAMP) {
 615         state_change(LAMP, LAMP_DARK);
 616         rspeak(DARK(game.loc) ?
 617                PITCH_DARK :
 618                NO_MESSAGE);
 619         return GO_CLEAROBJ;
 620     }
 621
 622     if (obj == DRAGON ||
 623         obj == VOLCANO) {
 624         rspeak(BEYOND_POWER);
 625         return GO_CLEAROBJ;
 626     }
 627
 628     speak(actions[verb].message);
 629     return GO_CLEAROBJ;
 630 }
 631
 632 static int feed(token_t verb, token_t obj)
 633 /*  Feed.  If bird, no seed.  Snake, dragon, troll: quip.  If dwarf, make him
 634  *  mad.  Bear, special. */
 635 {
 636     switch (obj) {
 637     case BIRD:
 638         rspeak(BIRD_PINING);
 639         break;
 640     case DRAGON:
 641         if (game.prop[DRAGON] != DRAGON_BARS)
 642             rspeak(RIDICULOUS_ATTEMPT);
 643         else
 644             rspeak(NOTHING_EDIBLE);
 645         break;
 646     case SNAKE:
 647         if (!game.closed && HERE(BIRD)) {
 648             DESTROY(BIRD);
 649             rspeak(BIRD_DEVOURED);
 650         } else
 651             rspeak(NOTHING_EDIBLE);
 652         break;
 653     case TROLL:
 654         rspeak(TROLL_VICES);
 655         break;
 656     case DWARF:
 657         if (HERE(FOOD)) {
 658             game.dflag += 2;
 659             rspeak(REALLY_MAD);
 660         } else
 661             speak(actions[verb].message);
 662         break;
 663     case BEAR:
 664         if (game.prop[BEAR] == BEAR_DEAD) {
 665             rspeak(RIDICULOUS_ATTEMPT);
 666             break;
 667         }
 668         if (game.prop[BEAR] == UNTAMED_BEAR) {
 669             if (HERE(FOOD)) {
 670                 DESTROY(FOOD);
 671                 game.fixed[AXE] = IS_FREE;
 672                 game.prop[AXE] = AXE_HERE;
 673                 state_change(BEAR, SITTING_BEAR);
 674             } else
 675                 rspeak(NOTHING_EDIBLE);
 676             break;
 677         }
 678         speak(actions[verb].message);
 679         break;
 680     case OGRE:
 681         if (HERE(FOOD))
 682             rspeak(OGRE_FULL);
 683         else
 684             speak(actions[verb].message);
 685         break;
 686     default:
 687         rspeak(AM_GAME);
 688     }
 689     return GO_CLEAROBJ;
 690 }
 691
 692 int fill(token_t verb, token_t obj)
 693 /*  Fill.  Bottle or urn must be empty, and liquid available.  (Vase
 694  *  is nasty.) */
 695 {
 696     if (obj == VASE) {
 697         if (LIQLOC(game.loc) == NO_OBJECT) {
 698             rspeak(FILL_INVALID);
 699             return GO_CLEAROBJ;
 700         }
 701         if (!TOTING(VASE)) {
 702             rspeak(ARENT_CARRYING);
 703             return GO_CLEAROBJ;
 704         }
 705         rspeak(SHATTER_VASE);
 706         game.prop[VASE] = VASE_BROKEN;
 707         game.fixed[VASE] = IS_FIXED;
 708         return (discard(verb, VASE, true));
 709     }
 710
 711     if (obj == URN) {
 712         if (game.prop[URN] != URN_EMPTY) {
 713             rspeak(FULL_URN);
 714             return GO_CLEAROBJ;
 715         }
 716         if (!HERE(BOTTLE)) {
 717             rspeak(FILL_INVALID);
 718             return GO_CLEAROBJ;
 719         }
 720         int k = LIQUID();
 721         switch (k) {
 722         case WATER:
 723             game.prop[BOTTLE] = EMPTY_BOTTLE;
 724             rspeak(WATER_URN);
 725             break;
 726         case OIL:
 727             game.prop[URN] = URN_DARK;
 728             game.prop[BOTTLE] = EMPTY_BOTTLE;
 729             rspeak(OIL_URN);
 730             break;
 731         case NO_OBJECT:
 732         default:
 733             rspeak(FILL_INVALID);
 734             return GO_CLEAROBJ;
 735         }
 736         game.place[k] = LOC_NOWHERE;
 737         return GO_CLEAROBJ;
 738     }
 739     if (obj != NO_OBJECT && obj != BOTTLE) {
 740         speak(actions[verb].message);
 741         return GO_CLEAROBJ;
 742     }
 743     if (obj == NO_OBJECT && !HERE(BOTTLE))
 744         return GO_UNKNOWN;
 745
 746     if (HERE(URN) && game.prop[URN] != URN_EMPTY) {
 747         rspeak(URN_NOPOUR);
 748         return GO_CLEAROBJ;
 749     }
 750     if (LIQUID() != NO_OBJECT) {
 751         rspeak(BOTTLE_FULL);
 752         return GO_CLEAROBJ;
 753     }
 754     if (LIQLOC(game.loc) == NO_OBJECT) {
 755         rspeak(NO_LIQUID);
 756         return GO_CLEAROBJ;
 757     }
 758
 759     state_change(BOTTLE, (LIQLOC(game.loc) == OIL)
 760                  ? OIL_BOTTLE
 761                  : WATER_BOTTLE);
 762     if (TOTING(BOTTLE))
 763         game.place[LIQUID()] = CARRIED;
 764     return GO_CLEAROBJ;
 765 }
 766
 767 static int find(token_t verb, token_t obj)
 768 /* Find.  Might be carrying it, or it might be here.  Else give caveat. */
 769 {
 770     if (TOTING(obj)) {
 771         rspeak(ALREADY_CARRYING);
 772         return GO_CLEAROBJ;
 773     }
 774
 775     if (game.closed) {
 776         rspeak(NEEDED_NEARBY);
 777         return GO_CLEAROBJ;
 778     }
 779
 780     if (AT(obj) ||
 781         (LIQUID() == obj && AT(BOTTLE)) ||
 782         obj == LIQLOC(game.loc) ||
 783         (obj == DWARF && atdwrf(game.loc) > 0)) {
 784         rspeak(YOU_HAVEIT);
 785         return GO_CLEAROBJ;
 786     }
 787
 788
 789     speak(actions[verb].message);
 790     return GO_CLEAROBJ;
 791 }
 792
 793 static int fly(token_t verb, token_t obj)
 794 /* Fly.  Snide remarks unless hovering rug is here. */
 795 {
 796     if (obj == INTRANSITIVE) {
 797         if (!HERE(RUG)) {
 798             rspeak(FLAP_ARMS);
 799             return GO_CLEAROBJ;
 800         }
 801         if (game.prop[RUG] != RUG_HOVER) {
 802             rspeak(RUG_NOTHING2);
 803             return GO_CLEAROBJ;
 804         }
 805         obj = RUG;
 806     }
 807
 808     if (obj != RUG) {
 809         speak(actions[verb].message);
 810         return GO_CLEAROBJ;
 811     }
 812     if (game.prop[RUG] != RUG_HOVER) {
 813         rspeak(RUG_NOTHING1);
 814         return GO_CLEAROBJ;
 815     }
 816     game.oldlc2 = game.oldloc;
 817     game.oldloc = game.loc;
 818
 819     if (game.prop[SAPPH] == STATE_NOTFOUND) {
 820         game.newloc = game.place[SAPPH];
 821         rspeak(RUG_GOES);
 822     } else {
 823         game.newloc = LOC_CLIFF;
 824         rspeak(RUG_RETURNS);
 825     }
 826     return GO_TERMINATE;
 827 }
 828
 829 static int inven(void)
 830 /* Inventory. If object, treat same as find.  Else report on current burden. */
 831 {
 832     bool empty = true;
 833     for (int i = 1; i <= NOBJECTS; i++) {
 834         if (i == BEAR ||
 835             !TOTING(i))
 836             continue;
 837         if (empty) {
 838             rspeak(NOW_HOLDING);
 839             empty = false;
 840         }
 841         pspeak(i, touch, -1, false);
 842     }
 843     if (TOTING(BEAR))
 844         rspeak(TAME_BEAR);
 845     if (empty)
 846         rspeak(NO_CARRY);
 847     return GO_CLEAROBJ;
 848 }
 849
 850 static int light(token_t verb, token_t obj)
 851 /*  Light.  Applicable only to lamp and urn. */
 852 {
 853     if (obj == INTRANSITIVE) {
 854         if (HERE(LAMP) && game.prop[LAMP] == LAMP_DARK && game.limit >= 0)
 855             obj = LAMP;
 856         if (HERE(URN) && game.prop[URN] == URN_DARK)
 857             obj =  URN;
 858         if (obj == INTRANSITIVE ||
 859             (HERE(LAMP) && game.prop[LAMP] == LAMP_DARK && game.limit >= 0 &&
 860              HERE(URN) && game.prop[URN] == URN_DARK))
 861             return GO_UNKNOWN;
 862     }
 863
 864     if (obj == URN) {
 865         state_change(URN, game.prop[URN] == URN_EMPTY ?
 866                      URN_EMPTY :
 867                      URN_LIT);
 868         return GO_CLEAROBJ;
 869     } else {
 870         if (obj != LAMP) {
 871             speak(actions[verb].message);
 872             return GO_CLEAROBJ;
 873         }
 874         if (game.limit < 0) {
 875             rspeak(LAMP_OUT);
 876             return GO_CLEAROBJ;
 877         }
 878         state_change(LAMP, LAMP_BRIGHT);
 879         if (game.wzdark)
 880             return GO_TOP;
 881         else
 882             return GO_CLEAROBJ;
 883     }
 884 }
 885
 886 static int listen(void)
 887 /*  Listen.  Intransitive only.  Print stuff based on object sound proprties. */
 888 {
 889     long sound = locations[game.loc].sound;
 890     if (sound != SILENT) {
 891         rspeak(sound);
 892         if (!locations[game.loc].loud)
 893             rspeak(NO_MESSAGE);
 894         return GO_CLEAROBJ;
 895     }
 896     for (int i = 1; i <= NOBJECTS; i++) {
 897         if (!HERE(i) ||
 898             objects[i].sounds[0] == NULL ||
 899             game.prop[i] < 0)
 900             continue;
 901         int mi =  game.prop[i];
 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(token_t verb, token_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     if (obj == GRATE ||
 938         obj == CHAIN) {
 939         if (HERE(KEYS)) {
 940             if (obj == CHAIN)
 941                 return chain(verb);
 942             if (game.closng) {
 943                 rspeak(EXIT_CLOSED);
 944                 if (!game.panic)
 945                     game.clock2 = PANICTIME;
 946                 game.panic = true;
 947                 return GO_CLEAROBJ ;
 948             } else {
 949                 state_change(GRATE, (verb == LOCK) ?
 950                              GRATE_CLOSED :
 951                              GRATE_OPEN);
 952                 return GO_CLEAROBJ;
 953             }
 954         }
 955         rspeak(NO_KEYS);
 956         return GO_CLEAROBJ;
 957     }
 958
 959     switch (obj) {
 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         return GO_CLEAROBJ;
 972     case OYSTER:
 973         if (verb == LOCK)
 974             rspeak(HUH_MAN);
 975         else
 976             rspeak(OYSTER_OPENER);
 977
 978         return GO_CLEAROBJ;
 979     case DOOR:
 980         rspeak((game.prop[DOOR] == DOOR_UNRUSTED) ? OK_MAN : RUSTY_DOOR);
 981         break;
 982     case CAGE:
 983         rspeak( NO_LOCK);
 984         break;
 985     case KEYS:
 986         rspeak(CANNOT_UNLOCK);
 987         break;
 988     default:
 989         speak(actions[verb].message);
 990     }
 991
 992     return GO_CLEAROBJ;
 993 }
 994
 995 static int pour(token_t verb, token_t obj)
 996 /*  Pour.  If no object, or object is bottle, assume contents of bottle.
 997  *  special tests for pouring water or oil on plant or rusty door. */
 998 {
 999     if (obj == BOTTLE ||
1000         obj == NO_OBJECT)
1001         obj = LIQUID();
1002     if (obj == NO_OBJECT)
1003         return GO_UNKNOWN;
1004     if (!TOTING(obj)) {
1005         speak(actions[verb].message);
1006         return GO_CLEAROBJ;
1007     }
1008
1009     if (obj != OIL && obj != WATER) {
1010         rspeak(CANT_POUR);
1011         return GO_CLEAROBJ;
1012     }
1013     if (HERE(URN) && game.prop[URN] == URN_EMPTY)
1014         return fill(verb, URN);
1015     game.prop[BOTTLE] = EMPTY_BOTTLE;
1016     game.place[obj] = LOC_NOWHERE;
1017     if (!(AT(PLANT) ||
1018           AT(DOOR))) {
1019         rspeak(GROUND_WET);
1020         return GO_CLEAROBJ;
1021     }
1022     if (!AT(DOOR)) {
1023         if (obj == WATER) {
1024             /* cycle through the three plant states */
1025             state_change(PLANT, MOD(game.prop[PLANT] + 1, 3));
1026             game.prop[PLANT2] = game.prop[PLANT];
1027             return GO_MOVE;
1028         } else {
1029             rspeak(SHAKING_LEAVES);
1030             return GO_CLEAROBJ;
1031         }
1032     } else {
1033         state_change(DOOR, (obj == OIL) ?
1034                      DOOR_UNRUSTED :
1035                      DOOR_RUSTED);
1036         return GO_CLEAROBJ;
1037     }
1038 }
1039
1040 static int quit(void)
1041 /*  Quit.  Intransitive only.  Verify intent and exit if that's what he wants. */
1042 {
1043     if (yes(arbitrary_messages[REALLY_QUIT], arbitrary_messages[OK_MAN], arbitrary_messages[OK_MAN]))
1044         terminate(quitgame);
1045     return GO_CLEAROBJ;
1046 }
1047
1048 static int read(struct command_t command)
1049 /*  Read.  Print stuff based on objtxt.  Oyster (?) is special case. */
1050 {
1051     if (command.obj == INTRANSITIVE) {
1052         command.obj = 0;
1053         for (int i = 1; i <= NOBJECTS; i++) {
1054             if (HERE(i) && objects[i].texts[0] != NULL && game.prop[i] >= 0)
1055                 command.obj = command.obj * NOBJECTS + i;
1056         }
1057         if (command.obj > NOBJECTS ||
1058             command.obj == 0 ||
1059             DARK(game.loc))
1060             return GO_UNKNOWN;
1061     }
1062
1063     if (DARK(game.loc)) {
1064         sspeak(NO_SEE, command.raw1);
1065     } else if (command.obj == OYSTER && !game.clshnt && game.closed) {
1066         game.clshnt = yes(arbitrary_messages[CLUE_QUERY], arbitrary_messages[WAYOUT_CLUE], arbitrary_messages[OK_MAN]);
1067     } else if (objects[command.obj].texts[0] == NULL ||
1068                game.prop[command.obj] < 0) {
1069         speak(actions[command.verb].message);
1070     } else
1071         pspeak(command.obj, study, game.prop[command.obj], true);
1072     return GO_CLEAROBJ;
1073 }
1074
1075 static int reservoir(void)
1076 /*  Z'ZZZ (word gets recomputed at startup; different each game). */
1077 {
1078     if (!AT(RESER) && game.loc != LOC_RESBOTTOM) {
1079         rspeak(NOTHING_HAPPENS);
1080         return GO_CLEAROBJ;
1081     } else {
1082         state_change(RESER,
1083                      game.prop[RESER] == WATERS_PARTED ? WATERS_UNPARTED : WATERS_PARTED);
1084         if (AT(RESER))
1085             return GO_CLEAROBJ;
1086         else {
1087             game.oldlc2 = game.loc;
1088             game.newloc = LOC_NOWHERE;
1089             rspeak(NOT_BRIGHT);
1090             return GO_TERMINATE;
1091         }
1092     }
1093 }
1094
1095 static int rub(token_t verb, token_t obj)
1096 /* Rub.  Yields various snide remarks except for lit urn. */
1097 {
1098     if (obj == URN && game.prop[URN] == URN_LIT) {
1099         DESTROY(URN);
1100         drop(AMBER, game.loc);
1101         game.prop[AMBER] = AMBER_IN_ROCK;
1102         --game.tally;
1103         drop(CAVITY, game.loc);
1104         rspeak(URN_GENIES);
1105     } else if (obj != LAMP) {
1106         rspeak(PECULIAR_NOTHING);
1107     } else {
1108         speak(actions[verb].message);
1109     }
1110     return GO_CLEAROBJ;
1111 }
1112
1113 static int say(struct command_t *command)
1114 /* Say.  Echo WD2 (or WD1 if no WD2 (SAY WHAT?, etc.).)  Magic words override. */
1115 {
1116     if (command->wd2 > 0) {
1117         command->wd1 = command->wd2;
1118         strcpy(command->raw1, command->raw2);
1119     }
1120     char word1[TOKLEN + 1];
1121     packed_to_token(command->wd1, word1);
1122     int wd = (int) get_vocab_id(word1);
1123     if (wd == MOTION_WORD(XYZZY) ||
1124         wd == MOTION_WORD(PLUGH) ||
1125         wd == MOTION_WORD(PLOVER) ||
1126         wd == ACTION_WORD(FEE) ||
1127         wd == ACTION_WORD(FIE) ||
1128         wd == ACTION_WORD(FOE) ||
1129         wd == ACTION_WORD(FOO) ||
1130         wd == ACTION_WORD(FUM) ||
1131         wd == ACTION_WORD(PART)) {
1132         /* FIXME: scribbles on the interpreter's command block */
1133         wordclear(&command->wd2);
1134         return GO_LOOKUP;
1135     }
1136     sspeak(OKEY_DOKEY, command->raw1);
1137     return GO_CLEAROBJ;
1138 }
1139
1140 static int throw_support(long spk)
1141 {
1142     rspeak(spk);
1143     drop(AXE, game.loc);
1144     return GO_MOVE;
1145 }
1146
1147 static int throw (struct command_t *command)
1148 /*  Throw.  Same as discard unless axe.  Then same as attack except
1149  *  ignore bird, and if dwarf is present then one might be killed.
1150  *  (Only way to do so!)  Axe also special for dragon, bear, and
1151  *  troll.  Treasures special for troll. */
1152 {
1153     if (!TOTING(command->obj)) {
1154         speak(actions[command->verb].message);
1155         return GO_CLEAROBJ;
1156     }
1157     if (objects[command->obj].is_treasure && AT(TROLL)) {
1158         /*  Snarf a treasure for the troll. */
1159         drop(command->obj, LOC_NOWHERE);
1160         move(TROLL, LOC_NOWHERE);
1161         move(TROLL + NOBJECTS, LOC_NOWHERE);
1162         drop(TROLL2, objects[TROLL].plac);
1163         drop(TROLL2 + NOBJECTS, objects[TROLL].fixd);
1164         juggle(CHASM);
1165         rspeak(TROLL_SATISFIED);
1166         return GO_CLEAROBJ;
1167     }
1168     if (command->obj == FOOD && HERE(BEAR)) {
1169         /* But throwing food is another story. */
1170         command->obj = BEAR;
1171         return (feed(command->verb, command->obj));
1172     }
1173     if (command->obj != AXE)
1174         return (discard(command->verb, command->obj, false));
1175     else {
1176         if (atdwrf(game.loc) <= 0) {
1177             if (AT(DRAGON) && game.prop[DRAGON] == DRAGON_BARS)
1178                 return throw_support(DRAGON_SCALES);
1179             if (AT(TROLL))
1180                 return throw_support(TROLL_RETURNS);
1181             else if (AT(OGRE))
1182                 return throw_support(OGRE_DODGE);
1183             else if (HERE(BEAR) && game.prop[BEAR] == UNTAMED_BEAR) {
1184                 /* This'll teach him to throw the axe at the bear! */
1185                 drop(AXE, game.loc);
1186                 game.fixed[AXE] = IS_FIXED;
1187                 juggle(BEAR);
1188                 state_change(AXE, AXE_LOST);
1189                 return GO_CLEAROBJ;
1190             }
1191             command->obj = NO_OBJECT;
1192             return (attack(command));
1193         }
1194
1195         if (randrange(NDWARVES + 1) < game.dflag) {
1196             return throw_support(DWARF_DODGES);
1197         } else {
1198             long i = atdwrf(game.loc);
1199             game.dseen[i] = false;
1200             game.dloc[i] = LOC_NOWHERE;
1201             return throw_support((++game.dkill == 1) ?
1202                                  DWARF_SMOKE :
1203                                  KILLED_DWARF);
1204         }
1205     }
1206 }
1207
1208 static int wake(token_t verb, token_t obj)
1209 /* Wake.  Only use is to disturb the dwarves. */
1210 {
1211     if (obj != DWARF ||
1212         !game.closed) {
1213         speak(actions[verb].message);
1214         return GO_CLEAROBJ;
1215     } else {
1216         rspeak(PROD_DWARF);
1217         return GO_DWARFWAKE;
1218     }
1219 }
1220
1221 static int wave(token_t verb, token_t obj)
1222 /* Wave.  No effect unless waving rod at fissure or at bird. */
1223 {
1224     if (obj != ROD ||
1225         !TOTING(obj) ||
1226         (!HERE(BIRD) &&
1227          (game.closng ||
1228           !AT(FISSURE)))) {
1229         speak(((!TOTING(obj)) && (obj != ROD ||
1230                                    !TOTING(ROD2))) ?
1231                arbitrary_messages[ARENT_CARRYING] :
1232                actions[verb].message);
1233         return GO_CLEAROBJ;
1234     }
1235
1236     if (game.prop[BIRD] == BIRD_UNCAGED && game.loc == game.place[STEPS] && game.prop[JADE] < 0) {
1237         drop(JADE, game.loc);
1238         game.prop[JADE] = STATE_FOUND;
1239         --game.tally;
1240         rspeak(NECKLACE_FLY);
1241         return GO_CLEAROBJ;
1242     } else {
1243         if (game.closed) {
1244             rspeak((game.prop[BIRD] == BIRD_CAGED) ?
1245                    CAGE_FLY :
1246                    FREE_FLY);
1247             return GO_DWARFWAKE;
1248         }
1249         if (game.closng ||
1250             !AT(FISSURE)) {
1251             rspeak((game.prop[BIRD] == BIRD_CAGED) ?
1252                    CAGE_FLY :
1253                    FREE_FLY);
1254             return GO_CLEAROBJ;
1255         }
1256         if (HERE(BIRD))
1257             rspeak((game.prop[BIRD] == BIRD_CAGED) ?
1258                    CAGE_FLY :
1259                    FREE_FLY);
1260
1261         state_change(FISSURE,
1262                      game.prop[FISSURE] == BRIDGED ? UNBRIDGED : BRIDGED);
1263         return GO_CLEAROBJ;
1264     }
1265 }
1266
1267 int action(struct command_t *command)
1268 /*  Analyse a verb.  Remember what it was, go back for object if second word
1269  *  unless verb is "say", which snarfs arbitrary second word.
1270  */
1271 {
1272     if (command->part == unknown) {
1273         /*  Analyse an object word.  See if the thing is here, whether
1274          *  we've got a verb yet, and so on.  Object must be here
1275          *  unless verb is "find" or "invent(ory)" (and no new verb
1276          *  yet to be analysed).  Water and oil are also funny, since
1277          *  they are never actually dropped at any location, but might
1278          *  be here inside the bottle or urn or as a feature of the
1279          *  location. */
1280         if (HERE(command->obj))
1281             /* FALL THROUGH */;
1282         else if (command->obj == GRATE) {
1283             if (game.loc == LOC_START ||
1284                 game.loc == LOC_VALLEY ||
1285                 game.loc == LOC_SLIT) {
1286                 command->obj = DPRSSN;
1287             }
1288             if (game.loc == LOC_COBBLE ||
1289                 game.loc == LOC_DEBRIS ||
1290                 game.loc == LOC_AWKWARD ||
1291                 game.loc == LOC_BIRD ||
1292                 game.loc == LOC_PITTOP) {
1293                 command->obj = ENTRNC;
1294             }
1295         } else if (command->obj == DWARF && atdwrf(game.loc) > 0)
1296             /* FALL THROUGH */;
1297         else if ((LIQUID() == command->obj && HERE(BOTTLE)) ||
1298                  command->obj == LIQLOC(game.loc))
1299             /* FALL THROUGH */;
1300         else if (command->obj == OIL && HERE(URN) && game.prop[URN] != 0) {
1301             command->obj = URN;
1302             /* FALL THROUGH */;
1303         } else if (command->obj == PLANT && AT(PLANT2) && game.prop[PLANT2] != 0) {
1304             command->obj = PLANT2;
1305             /* FALL THROUGH */;
1306         } else if (command->obj == KNIFE && game.knfloc == game.loc) {
1307             game.knfloc = -1;
1308             rspeak(KNIVES_VANISH);
1309             return GO_CLEAROBJ;
1310         } else if (command->obj == ROD && HERE(ROD2)) {
1311             command->obj = ROD2;
1312             /* FALL THROUGH */;
1313         } else if ((command->verb == FIND ||
1314                     command->verb == INVENTORY) && command->wd2 <= 0)
1315             /* FALL THROUGH */;
1316         else {
1317             sspeak(NO_SEE, command->raw1);
1318             return GO_CLEAROBJ;
1319         }
1320
1321         if (command->wd2 > 0)
1322             return GO_WORD2;
1323         if (command->verb != 0)
1324             command->part = transitive;
1325     }
1326
1327     switch (command->part) {
1328     case intransitive:
1329         if (command->wd2 > 0 && command->verb != SAY)
1330             return GO_WORD2;
1331         if (command->verb == SAY)
1332             command->obj = command->wd2;
1333         if (command->obj == NO_OBJECT ||
1334             command->obj == INTRANSITIVE) {
1335             /*  Analyse an intransitive verb (ie, no object given yet). */
1336             switch (command->verb) {
1337             case CARRY:
1338                 return vcarry(command->verb, INTRANSITIVE);
1339             case  DROP:
1340                 return GO_UNKNOWN;
1341             case  SAY:
1342                 return GO_UNKNOWN;
1343             case  UNLOCK:
1344                 return lock(command->verb, INTRANSITIVE);
1345             case  NOTHING: {
1346                 rspeak(OK_MAN);
1347                 return (GO_CLEAROBJ);
1348             }
1349             case  LOCK:
1350                 return lock(command->verb, INTRANSITIVE);
1351             case  LIGHT:
1352                 return light(command->verb, INTRANSITIVE);
1353             case  EXTINGUISH:
1354                 return extinguish(command->verb, INTRANSITIVE);
1355             case  WAVE:
1356                 return GO_UNKNOWN;
1357             case  TAME:
1358                 return GO_UNKNOWN;
1359             case GO: {
1360                 speak(actions[command->verb].message);
1361                 return GO_CLEAROBJ;
1362             }
1363             case ATTACK:
1364                 return attack(command);
1365             case POUR:
1366                 return pour(command->verb, command->obj);
1367             case EAT:
1368                 return eat(command->verb, INTRANSITIVE);
1369             case DRINK:
1370                 return drink(command->verb, command->obj);
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, command->obj);
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, false);
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 }