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