actions.c

   1 #include <stdlib.h>
   2 #include <stdbool.h>
   3 #include <string.h>
   4 #include "advent.h"
   5 #include "dungeon.h"
   6
   7 static int fill(verb_t, obj_t);
   8
   9 static int attack(struct command_t *command)
  10 /*  Attack.  Assume target if unambiguous.  "Throw" also links here.
  11  *  Attackable objects fall into two categories: enemies (snake,
  12  *  dwarf, etc.)  and others (bird, clam, machine).  Ambiguous if 2
  13  *  enemies, or no enemies but 2 others. */
  14 {
  15     verb_t verb = command->verb;
  16     obj_t obj = command->obj;
  17
  18     if (obj == INTRANSITIVE) {
  19         int changes = 0;
  20         if (atdwrf(game.loc) > 0) {
  21             obj = DWARF;
  22             ++changes;
  23         }
  24         if (HERE(SNAKE)) {
  25             obj = SNAKE;
  26             ++changes;
  27         }
  28         if (AT(DRAGON) && game.prop[DRAGON] == DRAGON_BARS) {
  29             obj = DRAGON;
  30             ++changes;
  31         }
  32         if (AT(TROLL)) {
  33             obj = TROLL;
  34             ++changes;
  35         }
  36         if (AT(OGRE)) {
  37             obj = OGRE;
  38             ++changes;
  39         }
  40         if (HERE(BEAR) && game.prop[BEAR] == UNTAMED_BEAR) {
  41             obj = BEAR;
  42             ++changes;
  43         }
  44         /* check for low-priority targets */
  45         if (obj == INTRANSITIVE) {
  46             /* Can't attack bird or machine by throwing axe. */
  47             if (HERE(BIRD) && verb != THROW) {
  48                 obj = BIRD;
  49                 ++changes;
  50             }
  51             if (HERE(VEND) && verb != THROW) {
  52                 obj = VEND;
  53                 ++changes;
  54             }
  55             /* Clam and oyster both treated as clam for intransitive case;
  56              * no harm done. */
  57             if (HERE(CLAM) || HERE(OYSTER)) {
  58                 obj = CLAM;
  59                 ++changes;
  60             }
  61         }
  62         if (changes >= 2)
  63             return GO_UNKNOWN;
  64     }
  65
  66     if (obj == BIRD) {
  67         if (game.closed) {
  68             rspeak(UNHAPPY_BIRD);
  69         } else {
  70             DESTROY(BIRD);
  71             rspeak(BIRD_DEAD);
  72         }
  73         return GO_CLEAROBJ;
  74     }
  75     if (obj == VEND) {
  76         state_change(VEND,
  77                      game.prop[VEND] == VEND_BLOCKS ? VEND_UNBLOCKS : VEND_BLOCKS);
  78         return GO_CLEAROBJ;
  79     }
  80
  81     if (obj == BEAR) {
  82         switch (game.prop[BEAR]) {
  83         case UNTAMED_BEAR:
  84             rspeak(BEAR_HANDS);
  85             break;
  86         case SITTING_BEAR:
  87             rspeak(BEAR_CONFUSED);
  88             break;
  89         case CONTENTED_BEAR:
  90             rspeak(BEAR_CONFUSED);
  91             break;
  92         case BEAR_DEAD:
  93             rspeak(ALREADY_DEAD);
  94             break;
  95         }
  96         return GO_CLEAROBJ;
  97     }
  98     if (obj == DRAGON && game.prop[DRAGON] == DRAGON_BARS) {
  99         /*  Fun stuff for dragon.  If he insists on attacking it, win!
 100          *  Set game.prop to dead, move dragon to central loc (still
 101          *  fixed), move rug there (not fixed), and move him there,
 102          *  too.  Then do a null motion to get new description. */
 103         rspeak(BARE_HANDS_QUERY);
 104         if (silent_yes()) {
 105             // FIXME: setting wd1 is a workaround for broken logic
 106             command->wd1 = token_to_packed("Y");
 107         } else {
 108             // FIXME: setting wd1 is a workaround for broken logic
 109             command->wd1 = token_to_packed("N");
 110             return GO_CHECKFOO;
 111         }
 112         state_change(DRAGON, DRAGON_DEAD);
 113         game.prop[RUG] = RUG_FLOOR;
 114         /* Hardcoding LOC_SECRET5 as the dragon's death location is ugly.
 115          * The way it was computed before was worse; it depended on the
 116          * two dragon locations being LOC_SECRET4 and LOC_SECRET6 and
 117          * LOC_SECRET5 being right between them.
 118          */
 119         move(DRAGON + NOBJECTS, IS_FIXED);
 120         move(RUG + NOBJECTS, IS_FREE);
 121         move(DRAGON, LOC_SECRET5);
 122         move(RUG, LOC_SECRET5);
 123         drop(BLOOD, LOC_SECRET5);
 124         for (obj_t i = 1; i <= NOBJECTS; i++) {
 125             if (game.place[i] == objects[DRAGON].plac ||
 126                 game.place[i] == objects[DRAGON].fixd)
 127                 move(i, LOC_SECRET5);
 128         }
 129         game.loc = LOC_SECRET5;
 130         return GO_MOVE;
 131     }
 132
 133     if (obj == OGRE) {
 134         rspeak(OGRE_DODGE);
 135         if (atdwrf(game.loc) == 0)
 136             return GO_CLEAROBJ;
 137
 138         rspeak(KNIFE_THROWN);
 139         DESTROY(OGRE);
 140         int dwarves = 0;
 141         for (int i = 1; i < PIRATE; i++) {
 142             if (game.dloc[i] == game.loc) {
 143                 ++dwarves;
 144                 game.dloc[i] = LOC_LONGWEST;
 145                 game.dseen[i] = false;
 146             }
 147         }
 148         rspeak((dwarves > 1) ?
 149                OGRE_PANIC1 :
 150                OGRE_PANIC2);
 151         return GO_CLEAROBJ;
 152     }
 153
 154     switch (obj) {
 155     case INTRANSITIVE:
 156         rspeak(NO_TARGET);
 157         break;
 158     case CLAM:
 159     case OYSTER:
 160         rspeak(SHELL_IMPERVIOUS);
 161         break;
 162     case SNAKE:
 163         rspeak(SNAKE_WARNING);
 164         break;
 165     case DWARF:
 166         if (game.closed) {
 167             return GO_DWARFWAKE;
 168         }
 169         rspeak(BARE_HANDS_QUERY);
 170         break;
 171     case DRAGON:
 172         rspeak(ALREADY_DEAD);
 173         break;
 174     case TROLL:
 175         rspeak(ROCKY_TROLL);
 176         break;
 177     default:
 178         speak(actions[verb].message);
 179     }
 180     return GO_CLEAROBJ;
 181 }
 182
 183 static int bigwords(long id)
 184 /*  FEE FIE FOE FOO (AND FUM).  Advance to next state if given in proper order.
 185  *  Look up foo in special section of vocab to determine which word we've got.
 186  *  Last word zips the eggs back to the giant room (unless already there). */
 187 {
 188     if ((game.foobar == WORD_EMPTY && id == FEE) ||
 189         (game.foobar == FEE && id == FIE) ||
 190         (game.foobar == FIE && id == FOE) ||
 191         (game.foobar == FOE && id == FOO) ||
 192         (game.foobar == FOE && id == FUM)) {
 193         game.foobar = id;
 194         if ((id != FOO) && (id != FUM)) {
 195             rspeak(OK_MAN);
 196             return GO_CLEAROBJ;
 197         }
 198         game.foobar = WORD_EMPTY;
 199         if (game.place[EGGS] == objects[EGGS].plac ||
 200             (TOTING(EGGS) && game.loc == objects[EGGS].plac)) {
 201             rspeak(NOTHING_HAPPENS);
 202             return GO_CLEAROBJ;
 203         } else {
 204             /*  Bring back troll if we steal the eggs back from him before
 205              *  crossing. */
 206             if (game.place[EGGS] == LOC_NOWHERE && game.place[TROLL] == LOC_NOWHERE && game.prop[TROLL] == TROLL_UNPAID)
 207                 game.prop[TROLL] = TROLL_PAIDONCE;
 208             int k;
 209             if (HERE(EGGS))
 210                 k = EGGS_VANISHED;
 211             else if (game.loc == objects[EGGS].plac)
 212                 k = EGGS_HERE;
 213             else
 214                 k = EGGS_DONE;
 215             move(EGGS, objects[EGGS].plac);
 216             pspeak(EGGS, look, k, true);
 217             return GO_CLEAROBJ;
 218         }
 219     } else {
 220         if (game.loc == LOC_GIANTROOM) {
 221             rspeak(START_OVER);
 222         } else {
 223             /* This is new begavior in Open Adventure - sounds better when
 224              * player isn't in the Giant Room. */
 225             rspeak(WELL_POINTLESS);
 226         }
 227         game.foobar = WORD_EMPTY;
 228         return GO_CLEAROBJ;
 229     }
 230 }
 231
 232 static void blast(void)
 233 /*  Blast.  No effect unless you've got dynamite, which is a neat trick! */
 234 {
 235     if (game.prop[ROD2] == STATE_NOTFOUND ||
 236         !game.closed)
 237         rspeak(REQUIRES_DYNAMITE);
 238     else {
 239         if (HERE(ROD2)) {
 240             game.bonus = splatter;
 241             rspeak(SPLATTER_MESSAGE);
 242         } else if (game.loc == LOC_NE) {
 243             game.bonus = defeat;
 244             rspeak(DEFEAT_MESSAGE);
 245         } else {
 246             game.bonus = victory;
 247             rspeak(VICTORY_MESSAGE);
 248         }
 249         terminate(endgame);
 250     }
 251 }
 252
 253 static int vbreak(verb_t verb, obj_t obj)
 254 /*  Break.  Only works for mirror in repository and, of course, the vase. */
 255 {
 256     switch (obj) {
 257     case MIRROR:
 258         if (game.closed) {
 259             rspeak(BREAK_MIRROR);
 260             return GO_DWARFWAKE;
 261         } else {
 262             rspeak(TOO_FAR);
 263             break;
 264         }
 265     case VASE:
 266         if (game.prop[VASE] == VASE_WHOLE) {
 267             if (TOTING(VASE))
 268                 drop(VASE, game.loc);
 269             state_change(VASE, VASE_BROKEN);
 270             game.fixed[VASE] = IS_FIXED;
 271             break;
 272         }
 273     default:
 274         speak(actions[verb].message);
 275     }
 276     return (GO_CLEAROBJ);
 277 }
 278
 279 static int brief(void)
 280 /*  Brief.  Intransitive only.  Suppress long descriptions after first time. */
 281 {
 282     game.abbnum = 10000;
 283     game.detail = 3;
 284     rspeak(BRIEF_CONFIRM);
 285     return GO_CLEAROBJ;
 286 }
 287
 288 static int vcarry(verb_t verb, obj_t obj)
 289 /*  Carry an object.  Special cases for bird and cage (if bird in cage, can't
 290  *  take one without the other).  Liquids also special, since they depend on
 291  *  status of bottle.  Also various side effects, etc. */
 292 {
 293     if (obj == INTRANSITIVE) {
 294         /*  Carry, no object given yet.  OK if only one object present. */
 295         if (game.atloc[game.loc] == NO_OBJECT ||
 296             game.link[game.atloc[game.loc]] != 0 ||
 297             atdwrf(game.loc) > 0)
 298             return GO_UNKNOWN;
 299         obj = game.atloc[game.loc];
 300     }
 301
 302     if (TOTING(obj)) {
 303         speak(actions[verb].message);
 304         return GO_CLEAROBJ;
 305     }
 306
 307     if (obj == MESSAG) {
 308         rspeak(REMOVE_MESSAGE);
 309         DESTROY(MESSAG);
 310         return GO_CLEAROBJ;
 311     }
 312
 313     if (game.fixed[obj] != IS_FREE) {
 314         /* Next guard tests whether plant is tiny or stashed */
 315         if (obj == PLANT && game.prop[PLANT] <= PLANT_THIRSTY) {
 316             rspeak(DEEP_ROOTS);
 317             return GO_CLEAROBJ;
 318         }
 319         if (obj == BEAR && game.prop[BEAR] == SITTING_BEAR) {
 320             rspeak(BEAR_CHAINED);
 321             return GO_CLEAROBJ;
 322         }
 323         if (obj == CHAIN && game.prop[BEAR] != UNTAMED_BEAR) {
 324             rspeak(STILL_LOCKED);
 325             return GO_CLEAROBJ;
 326         }
 327         if (obj == URN) {
 328             rspeak(URN_NOBUDGE);
 329             return GO_CLEAROBJ;
 330         }
 331         if (obj == CAVITY) {
 332             rspeak(DOUGHNUT_HOLES);
 333             return GO_CLEAROBJ;
 334         }
 335         if (obj == BLOOD) {
 336             rspeak(FEW_DROPS);
 337             return GO_CLEAROBJ;
 338         }
 339         if (obj == RUG && game.prop[RUG] == RUG_HOVER) {
 340             rspeak(RUG_HOVERS);
 341             return GO_CLEAROBJ;
 342         }
 343         if (obj == SIGN) {
 344             rspeak(HAND_PASSTHROUGH);
 345             return GO_CLEAROBJ;
 346         }
 347         rspeak(YOU_JOKING);
 348         return GO_CLEAROBJ;
 349     }
 350
 351     if (obj == WATER ||
 352         obj == OIL) {
 353         if (!HERE(BOTTLE) ||
 354             LIQUID() != obj) {
 355             if (TOTING(BOTTLE)) {
 356                 if (game.prop[BOTTLE] == EMPTY_BOTTLE) {
 357                     return (fill(verb, BOTTLE));
 358                 } else if (game.prop[BOTTLE] != EMPTY_BOTTLE)
 359                     rspeak(BOTTLE_FULL);
 360                 return GO_CLEAROBJ;
 361             }
 362             rspeak(NO_CONTAINER);
 363             return GO_CLEAROBJ;
 364         }
 365         obj = BOTTLE;
 366     }
 367
 368     if (game.holdng >= INVLIMIT) {
 369         rspeak(CARRY_LIMIT);
 370         return GO_CLEAROBJ;
 371
 372     }
 373
 374     if (obj == BIRD && game.prop[BIRD] != BIRD_CAGED && STASHED(BIRD) != BIRD_CAGED) {
 375         if (game.prop[BIRD] == BIRD_FOREST_UNCAGED) {
 376             DESTROY(BIRD);
 377             rspeak(BIRD_CRAP);
 378             return GO_CLEAROBJ;
 379         }
 380         if (!TOTING(CAGE)) {
 381             rspeak(CANNOT_CARRY);
 382             return GO_CLEAROBJ;
 383         }
 384         if (TOTING(ROD)) {
 385             rspeak(BIRD_EVADES);
 386             return GO_CLEAROBJ;
 387         }
 388         game.prop[BIRD] = BIRD_CAGED;
 389     }
 390     if ((obj == BIRD ||
 391          obj == CAGE) &&
 392         (game.prop[BIRD] == BIRD_CAGED || STASHED(BIRD) == BIRD_CAGED))
 393         /* expression maps BIRD to CAGE and CAGE to BIRD */
 394         carry(BIRD + CAGE - obj, game.loc);
 395     carry(obj, game.loc);
 396     if (obj == BOTTLE && LIQUID() != NO_OBJECT)
 397         game.place[LIQUID()] = CARRIED;
 398     if (GSTONE(obj) && game.prop[obj] != STATE_FOUND) {
 399         game.prop[obj] = STATE_FOUND;
 400         game.prop[CAVITY] = CAVITY_EMPTY;
 401     }
 402     rspeak(OK_MAN);
 403     return GO_CLEAROBJ;
 404 }
 405
 406 static int chain(verb_t verb)
 407 /* Do something to the bear's chain */
 408 {
 409     if (verb != LOCK) {
 410         if (game.prop[BEAR] == UNTAMED_BEAR) {
 411             rspeak(BEAR_BLOCKS);
 412             return GO_CLEAROBJ;
 413         }
 414         if (game.prop[CHAIN] == CHAIN_HEAP) {
 415             rspeak(ALREADY_UNLOCKED);
 416             return GO_CLEAROBJ;
 417         }
 418         game.prop[CHAIN] = CHAIN_HEAP;
 419         game.fixed[CHAIN] = IS_FREE;
 420         if (game.prop[BEAR] != BEAR_DEAD)
 421             game.prop[BEAR] = CONTENTED_BEAR;
 422
 423         switch (game.prop[BEAR]) {
 424         case BEAR_DEAD:
 425             // LCOV_EXCL_START
 426             /* Can't be reached as long as the only way for the bear to die
 427              * is from a bridge collapse. Leave in in case this changes, but
 428              * exclude from coverage testing. */
 429             game.fixed[BEAR] = IS_FIXED;
 430             break;
 431         // LCOV_EXCL_STOP
 432         default:
 433             game.fixed[BEAR] = IS_FREE;
 434         }
 435         rspeak(CHAIN_UNLOCKED);
 436         return GO_CLEAROBJ;
 437     }
 438
 439     if (game.prop[CHAIN] != CHAIN_HEAP) {
 440         rspeak(ALREADY_LOCKED);
 441         return GO_CLEAROBJ;
 442     }
 443     if (game.loc != objects[CHAIN].plac) {
 444         rspeak(NO_LOCKSITE);
 445         return GO_CLEAROBJ;
 446     }
 447
 448     game.prop[CHAIN] = CHAIN_FIXED;
 449
 450     if (TOTING(CHAIN))
 451         drop(CHAIN, game.loc);
 452     game.fixed[CHAIN] = IS_FIXED;
 453
 454     rspeak(CHAIN_LOCKED);
 455     return GO_CLEAROBJ;
 456 }
 457
 458 static int discard(verb_t verb, obj_t obj)
 459 /*  Discard object.  "Throw" also comes here for most objects.  Special cases for
 460  *  bird (might attack snake or dragon) and cage (might contain bird) and vase.
 461  *  Drop coins at vending machine for extra batteries. */
 462 {
 463     if (TOTING(ROD2) && obj == ROD && !TOTING(ROD))
 464         obj = ROD2;
 465     if (!TOTING(obj)) {
 466         speak(actions[verb].message);
 467         return GO_CLEAROBJ;
 468     }
 469     if (obj == BIRD && HERE(SNAKE)) {
 470         rspeak(BIRD_ATTACKS);
 471         if (game.closed)
 472             return GO_DWARFWAKE;
 473         DESTROY(SNAKE);
 474         /* Set game.prop for use by travel options */
 475         game.prop[SNAKE] = SNAKE_CHASED;
 476
 477     } else if ((GSTONE(obj) && AT(CAVITY) && game.prop[CAVITY] != CAVITY_FULL)) {
 478         rspeak(GEM_FITS);
 479         game.prop[obj] = STATE_IN_CAVITY;
 480         game.prop[CAVITY] = CAVITY_FULL;
 481         if (HERE(RUG) && ((obj == EMERALD && game.prop[RUG] != RUG_HOVER) ||
 482                           (obj == RUBY && game.prop[RUG] == RUG_HOVER))) {
 483             if (obj == RUBY)
 484                 rspeak(RUG_SETTLES);
 485             else if (TOTING(RUG))
 486                 rspeak(RUG_WIGGLES);
 487             else
 488                 rspeak(RUG_RISES);
 489             if (!TOTING(RUG) || obj == RUBY) {
 490                 int k = (game.prop[RUG] == RUG_HOVER) ? RUG_FLOOR : RUG_HOVER;
 491                 game.prop[RUG] = k;
 492                 if (k == RUG_HOVER)
 493                     k = objects[SAPPH].plac;
 494                 move(RUG + NOBJECTS, k);
 495             }
 496         }
 497     } else if (obj == COINS && HERE(VEND)) {
 498         DESTROY(COINS);
 499         drop(BATTERY, game.loc);
 500         pspeak(BATTERY, look, FRESH_BATTERIES, true);
 501         return GO_CLEAROBJ;
 502     } else if (obj == BIRD && AT(DRAGON) && game.prop[DRAGON] == DRAGON_BARS) {
 503         rspeak(BIRD_BURNT);
 504         DESTROY(BIRD);
 505         return GO_CLEAROBJ;
 506     } else if (obj == BEAR && AT(TROLL)) {
 507         state_change(TROLL, TROLL_GONE);
 508         move(TROLL, LOC_NOWHERE);
 509         move(TROLL + NOBJECTS, IS_FREE);
 510         move(TROLL2, objects[TROLL].plac);
 511         move(TROLL2 + NOBJECTS, objects[TROLL].fixd);
 512         juggle(CHASM);
 513     } else if (obj != VASE ||
 514                game.loc == objects[PILLOW].plac) {
 515         rspeak(OK_MAN);
 516     } else {
 517         state_change(VASE, AT(PILLOW)
 518                      ? VASE_WHOLE
 519                      : VASE_DROPPED);
 520         if (game.prop[VASE] != VASE_WHOLE)
 521             game.fixed[VASE] = IS_FIXED;
 522     }
 523     int k = LIQUID();
 524     if (k == obj)
 525         obj = BOTTLE;
 526     if (obj == BOTTLE && k != NO_OBJECT)
 527         game.place[k] = LOC_NOWHERE;
 528     if (obj == CAGE && game.prop[BIRD] == BIRD_CAGED)
 529         drop(BIRD, game.loc);
 530     drop(obj, game.loc);
 531     if (obj != BIRD)
 532         return GO_CLEAROBJ;
 533     game.prop[BIRD] = BIRD_UNCAGED;
 534     if (FOREST(game.loc))
 535         game.prop[BIRD] = BIRD_FOREST_UNCAGED;
 536     return GO_CLEAROBJ;
 537 }
 538
 539 static int drink(verb_t verb, obj_t obj)
 540 /*  Drink.  If no object, assume water and look for it here.  If water is in
 541  *  the bottle, drink that, else must be at a water loc, so drink stream. */
 542 {
 543     if (obj == INTRANSITIVE && LIQLOC(game.loc) != WATER &&
 544         (LIQUID() != WATER || !HERE(BOTTLE))) {
 545         return GO_UNKNOWN;
 546     }
 547
 548     if (obj == BLOOD) {
 549         DESTROY(BLOOD);
 550         state_change(DRAGON, DRAGON_BLOODLESS);
 551         game.blooded = true;
 552         return GO_CLEAROBJ;
 553     }
 554
 555     if (obj != INTRANSITIVE && obj != WATER) {
 556         rspeak(RIDICULOUS_ATTEMPT);
 557         return GO_CLEAROBJ;
 558     }
 559     if (LIQUID() == WATER && HERE(BOTTLE)) {
 560         game.place[WATER] = LOC_NOWHERE;
 561         state_change(BOTTLE, EMPTY_BOTTLE);
 562         return GO_CLEAROBJ;
 563     }
 564
 565     speak(actions[verb].message);
 566     return GO_CLEAROBJ;
 567 }
 568
 569 static int eat(verb_t verb, obj_t obj)
 570 /*  Eat.  Intransitive: assume food if present, else ask what.  Transitive: food
 571  *  ok, some things lose appetite, rest are ridiculous. */
 572 {
 573     switch (obj) {
 574     case INTRANSITIVE:
 575         if (!HERE(FOOD))
 576             return GO_UNKNOWN;
 577     case FOOD:
 578         DESTROY(FOOD);
 579         rspeak(THANKS_DELICIOUS);
 580         break;
 581     case BIRD:
 582     case SNAKE:
 583     case CLAM:
 584     case OYSTER:
 585     case DWARF:
 586     case DRAGON:
 587     case TROLL:
 588     case BEAR:
 589     case OGRE:
 590         rspeak(LOST_APPETITE);
 591         break;
 592     default:
 593         speak(actions[verb].message);
 594     }
 595     return GO_CLEAROBJ;
 596 }
 597
 598 static int extinguish(verb_t verb, obj_t obj)
 599 /* Extinguish.  Lamp, urn, dragon/volcano (nice try). */
 600 {
 601     if (obj == INTRANSITIVE) {
 602         if (HERE(LAMP) && game.prop[LAMP] == LAMP_BRIGHT)
 603             obj = LAMP;
 604         if (HERE(URN) && game.prop[URN] == URN_LIT)
 605             obj = URN;
 606         if (obj == INTRANSITIVE)
 607             return GO_UNKNOWN;
 608     }
 609
 610     switch (obj) {
 611     case URN:
 612         if (game.prop[URN] != URN_EMPTY) {
 613             state_change(URN, URN_DARK);
 614         } else {
 615             pspeak(URN, change, URN_DARK, true);
 616         }
 617         break;
 618     case LAMP:
 619         state_change(LAMP, LAMP_DARK);
 620         rspeak(DARK(game.loc) ?
 621                PITCH_DARK :
 622                NO_MESSAGE);
 623         break;
 624     case DRAGON:
 625     case VOLCANO:
 626         rspeak(BEYOND_POWER);
 627         break;
 628     default:
 629         speak(actions[verb].message);
 630     }
 631     return GO_CLEAROBJ;
 632 }
 633
 634 static int feed(verb_t verb, obj_t obj)
 635 /*  Feed.  If bird, no seed.  Snake, dragon, troll: quip.  If dwarf, make him
 636  *  mad.  Bear, special. */
 637 {
 638     switch (obj) {
 639     case BIRD:
 640         rspeak(BIRD_PINING);
 641         break;
 642     case DRAGON:
 643         if (game.prop[DRAGON] != DRAGON_BARS)
 644             rspeak(RIDICULOUS_ATTEMPT);
 645         else
 646             rspeak(NOTHING_EDIBLE);
 647         break;
 648     case SNAKE:
 649         if (!game.closed && HERE(BIRD)) {
 650             DESTROY(BIRD);
 651             rspeak(BIRD_DEVOURED);
 652         } else
 653             rspeak(NOTHING_EDIBLE);
 654         break;
 655     case TROLL:
 656         rspeak(TROLL_VICES);
 657         break;
 658     case DWARF:
 659         if (HERE(FOOD)) {
 660             game.dflag += 2;
 661             rspeak(REALLY_MAD);
 662         } else
 663             speak(actions[verb].message);
 664         break;
 665     case BEAR:
 666         if (game.prop[BEAR] == BEAR_DEAD) {
 667             rspeak(RIDICULOUS_ATTEMPT);
 668             break;
 669         }
 670         if (game.prop[BEAR] == UNTAMED_BEAR) {
 671             if (HERE(FOOD)) {
 672                 DESTROY(FOOD);
 673                 game.fixed[AXE] = IS_FREE;
 674                 game.prop[AXE] = AXE_HERE;
 675                 state_change(BEAR, SITTING_BEAR);
 676             } else
 677                 rspeak(NOTHING_EDIBLE);
 678             break;
 679         }
 680         speak(actions[verb].message);
 681         break;
 682     case OGRE:
 683         if (HERE(FOOD))
 684             rspeak(OGRE_FULL);
 685         else
 686             speak(actions[verb].message);
 687         break;
 688     default:
 689         rspeak(AM_GAME);
 690     }
 691     return GO_CLEAROBJ;
 692 }
 693
 694 int fill(verb_t verb, obj_t obj)
 695 /*  Fill.  Bottle or urn must be empty, and liquid available.  (Vase
 696  *  is nasty.) */
 697 {
 698     if (obj == VASE) {
 699         if (LIQLOC(game.loc) == NO_OBJECT) {
 700             rspeak(FILL_INVALID);
 701             return GO_CLEAROBJ;
 702         }
 703         if (!TOTING(VASE)) {
 704             rspeak(ARENT_CARRYING);
 705             return GO_CLEAROBJ;
 706         }
 707         rspeak(SHATTER_VASE);
 708         game.prop[VASE] = VASE_BROKEN;
 709         game.fixed[VASE] = IS_FIXED;
 710         drop(VASE, game.loc);
 711         return GO_CLEAROBJ;
 712     }
 713
 714     if (obj == URN) {
 715         if (game.prop[URN] != URN_EMPTY) {
 716             rspeak(FULL_URN);
 717             return GO_CLEAROBJ;
 718         }
 719         if (!HERE(BOTTLE)) {
 720             rspeak(FILL_INVALID);
 721             return GO_CLEAROBJ;
 722         }
 723         int k = LIQUID();
 724         switch (k) {
 725         case WATER:
 726             game.prop[BOTTLE] = EMPTY_BOTTLE;
 727             rspeak(WATER_URN);
 728             break;
 729         case OIL:
 730             game.prop[URN] = URN_DARK;
 731             game.prop[BOTTLE] = EMPTY_BOTTLE;
 732             rspeak(OIL_URN);
 733             break;
 734         case NO_OBJECT:
 735         default:
 736             rspeak(FILL_INVALID);
 737             return GO_CLEAROBJ;
 738         }
 739         game.place[k] = LOC_NOWHERE;
 740         return GO_CLEAROBJ;
 741     }
 742     if (obj != INTRANSITIVE && obj != BOTTLE) {
 743         speak(actions[verb].message);
 744         return GO_CLEAROBJ;
 745     }
 746     if (obj == INTRANSITIVE && !HERE(BOTTLE))
 747         return GO_UNKNOWN;
 748
 749     if (HERE(URN) && game.prop[URN] != URN_EMPTY) {
 750         rspeak(URN_NOPOUR);
 751         return GO_CLEAROBJ;
 752     }
 753     if (LIQUID() != NO_OBJECT) {
 754         rspeak(BOTTLE_FULL);
 755         return GO_CLEAROBJ;
 756     }
 757     if (LIQLOC(game.loc) == NO_OBJECT) {
 758         rspeak(NO_LIQUID);
 759         return GO_CLEAROBJ;
 760     }
 761
 762     state_change(BOTTLE, (LIQLOC(game.loc) == OIL)
 763                  ? OIL_BOTTLE
 764                  : WATER_BOTTLE);
 765     if (TOTING(BOTTLE))
 766         game.place[LIQUID()] = CARRIED;
 767     return GO_CLEAROBJ;
 768 }
 769
 770 static int find(verb_t verb, obj_t obj)
 771 /* Find.  Might be carrying it, or it might be here.  Else give caveat. */
 772 {
 773     if (TOTING(obj)) {
 774         rspeak(ALREADY_CARRYING);
 775         return GO_CLEAROBJ;
 776     }
 777
 778     if (game.closed) {
 779         rspeak(NEEDED_NEARBY);
 780         return GO_CLEAROBJ;
 781     }
 782
 783     if (AT(obj) ||
 784         (LIQUID() == obj && AT(BOTTLE)) ||
 785         obj == LIQLOC(game.loc) ||
 786         (obj == DWARF && atdwrf(game.loc) > 0)) {
 787         rspeak(YOU_HAVEIT);
 788         return GO_CLEAROBJ;
 789     }
 790
 791
 792     speak(actions[verb].message);
 793     return GO_CLEAROBJ;
 794 }
 795
 796 static int fly(verb_t verb, obj_t obj)
 797 /* Fly.  Snide remarks unless hovering rug is here. */
 798 {
 799     if (obj == INTRANSITIVE) {
 800         if (!HERE(RUG)) {
 801             rspeak(FLAP_ARMS);
 802             return GO_CLEAROBJ;
 803         }
 804         if (game.prop[RUG] != RUG_HOVER) {
 805             rspeak(RUG_NOTHING2);
 806             return GO_CLEAROBJ;
 807         }
 808         obj = RUG;
 809     }
 810
 811     if (obj != RUG) {
 812         speak(actions[verb].message);
 813         return GO_CLEAROBJ;
 814     }
 815     if (game.prop[RUG] != RUG_HOVER) {
 816         rspeak(RUG_NOTHING1);
 817         return GO_CLEAROBJ;
 818     }
 819     game.oldlc2 = game.oldloc;
 820     game.oldloc = game.loc;
 821
 822     if (game.prop[SAPPH] == STATE_NOTFOUND) {
 823         game.newloc = game.place[SAPPH];
 824         rspeak(RUG_GOES);
 825     } else {
 826         game.newloc = LOC_CLIFF;
 827         rspeak(RUG_RETURNS);
 828     }
 829     return GO_TERMINATE;
 830 }
 831
 832 static int inven(void)
 833 /* Inventory. If object, treat same as find.  Else report on current burden. */
 834 {
 835     bool empty = true;
 836     for (obj_t i = 1; i <= NOBJECTS; i++) {
 837         if (i == BEAR ||
 838             !TOTING(i))
 839             continue;
 840         if (empty) {
 841             rspeak(NOW_HOLDING);
 842             empty = false;
 843         }
 844         pspeak(i, touch, -1, false);
 845     }
 846     if (TOTING(BEAR))
 847         rspeak(TAME_BEAR);
 848     if (empty)
 849         rspeak(NO_CARRY);
 850     return GO_CLEAROBJ;
 851 }
 852
 853 static int light(verb_t verb, obj_t obj)
 854 /*  Light.  Applicable only to lamp and urn. */
 855 {
 856     if (obj == INTRANSITIVE) {
 857         int selects = 0;
 858         if (HERE(LAMP) && game.prop[LAMP] == LAMP_DARK && game.limit >= 0) {
 859             obj = LAMP;
 860             selects++;
 861         }
 862         if (HERE(URN) && game.prop[URN] == URN_DARK) {
 863             obj =  URN;
 864             selects++;
 865         }
 866         if (selects != 1)
 867             return GO_UNKNOWN;
 868     }
 869
 870     switch (obj) {
 871     case URN:
 872         state_change(URN, game.prop[URN] == URN_EMPTY ?
 873                      URN_EMPTY :
 874                      URN_LIT);
 875         break;
 876     case LAMP:
 877         if (game.limit < 0) {
 878             rspeak(LAMP_OUT);
 879             break;
 880         }
 881         state_change(LAMP, LAMP_BRIGHT);
 882         if (game.wzdark)
 883             return GO_TOP;
 884         break;
 885     default:
 886         speak(actions[verb].message);
 887     }
 888     return GO_CLEAROBJ;
 889 }
 890
 891 static int listen(void)
 892 /*  Listen.  Intransitive only.  Print stuff based on object sound proprties. */
 893 {
 894     long sound = locations[game.loc].sound;
 895     if (sound != SILENT) {
 896         rspeak(sound);
 897         if (!locations[game.loc].loud)
 898             rspeak(NO_MESSAGE);
 899         return GO_CLEAROBJ;
 900     }
 901     for (obj_t i = 1; i <= NOBJECTS; i++) {
 902         if (!HERE(i) ||
 903             objects[i].sounds[0] == NULL ||
 904             game.prop[i] < 0)
 905             continue;
 906         int mi =  game.prop[i];
 907         /* (ESR) Some unpleasant magic on object states here. Ideally
 908          * we'd have liked the bird to be a normal object that we can
 909          * use state_change() on; can't do it, because there are
 910          * actually two different series of per-state birdsounds
 911          * depending on whether player has drunk dragon's blood. */
 912         if (i == BIRD)
 913             mi += 3 * game.blooded;
 914         long packed_zzword = token_to_packed(game.zzword);
 915         pspeak(i, hear, mi, true, packed_zzword);
 916         rspeak(NO_MESSAGE);
 917         if (i == BIRD && mi == BIRD_ENDSTATE)
 918             DESTROY(BIRD);
 919         return GO_CLEAROBJ;
 920     }
 921     rspeak(ALL_SILENT);
 922     return GO_CLEAROBJ;
 923 }
 924
 925 static int lock(verb_t verb, obj_t obj)
 926 /* Lock, unlock, no object given.  Assume various things if present. */
 927 {
 928     if (obj == INTRANSITIVE) {
 929         if (HERE(CLAM))
 930             obj = CLAM;
 931         if (HERE(OYSTER))
 932             obj = OYSTER;
 933         if (AT(DOOR))
 934             obj = DOOR;
 935         if (AT(GRATE))
 936             obj = GRATE;
 937         if (HERE(CHAIN))
 938             obj = CHAIN;
 939         if (obj == INTRANSITIVE) {
 940             rspeak(NOTHING_LOCKED);
 941             return GO_CLEAROBJ;
 942         }
 943     }
 944
 945     /*  Lock, unlock object.  Special stuff for opening clam/oyster
 946      *  and for chain. */
 947
 948     switch (obj) {
 949     case CHAIN:
 950         if (HERE(KEYS)) {
 951             return chain(verb);
 952         } else
 953             rspeak(NO_KEYS);
 954         break;
 955     case GRATE:
 956         if (HERE(KEYS)) {
 957             if (game.closng) {
 958                 rspeak(EXIT_CLOSED);
 959                 if (!game.panic)
 960                     game.clock2 = PANICTIME;
 961                 game.panic = true;
 962             } else {
 963                 state_change(GRATE, (verb == LOCK) ?
 964                              GRATE_CLOSED :
 965                              GRATE_OPEN);
 966             }
 967         } else
 968             rspeak(NO_KEYS);
 969         break;
 970     case CLAM:
 971         if (verb == LOCK)
 972             rspeak(HUH_MAN);
 973         else if (!TOTING(TRIDENT))
 974             rspeak(OYSTER_OPENER);
 975         else {
 976             DESTROY(CLAM);
 977             drop(OYSTER, game.loc);
 978             drop(PEARL, LOC_CULDESAC);
 979             rspeak(PEARL_FALLS);
 980         }
 981         break;
 982     case OYSTER:
 983         if (verb == LOCK)
 984             rspeak(HUH_MAN);
 985         else
 986             rspeak(OYSTER_OPENER);
 987         break;
 988     case DOOR:
 989         rspeak((game.prop[DOOR] == DOOR_UNRUSTED) ? OK_MAN : RUSTY_DOOR);
 990         break;
 991     case CAGE:
 992         rspeak( NO_LOCK);
 993         break;
 994     case KEYS:
 995         rspeak(CANNOT_UNLOCK);
 996         break;
 997     default:
 998         speak(actions[verb].message);
 999     }
1000
1001     return GO_CLEAROBJ;
1002 }
1003
1004 static int pour(verb_t verb, obj_t obj)
1005 /*  Pour.  If no object, or object is bottle, assume contents of bottle.
1006  *  special tests for pouring water or oil on plant or rusty door. */
1007 {
1008     if (obj == BOTTLE ||
1009         obj == INTRANSITIVE)
1010         obj = LIQUID();
1011     if (obj == NO_OBJECT)
1012         return GO_UNKNOWN;
1013     if (!TOTING(obj)) {
1014         speak(actions[verb].message);
1015         return GO_CLEAROBJ;
1016     }
1017
1018     if (obj != OIL && obj != WATER) {
1019         rspeak(CANT_POUR);
1020         return GO_CLEAROBJ;
1021     }
1022     if (HERE(URN) && game.prop[URN] == URN_EMPTY)
1023         return fill(verb, URN);
1024     game.prop[BOTTLE] = EMPTY_BOTTLE;
1025     game.place[obj] = LOC_NOWHERE;
1026     if (!(AT(PLANT) ||
1027           AT(DOOR))) {
1028         rspeak(GROUND_WET);
1029         return GO_CLEAROBJ;
1030     }
1031     if (!AT(DOOR)) {
1032         if (obj == WATER) {
1033             /* cycle through the three plant states */
1034             state_change(PLANT, MOD(game.prop[PLANT] + 1, 3));
1035             game.prop[PLANT2] = game.prop[PLANT];
1036             return GO_MOVE;
1037         } else {
1038             rspeak(SHAKING_LEAVES);
1039             return GO_CLEAROBJ;
1040         }
1041     } else {
1042         state_change(DOOR, (obj == OIL) ?
1043                      DOOR_UNRUSTED :
1044                      DOOR_RUSTED);
1045         return GO_CLEAROBJ;
1046     }
1047 }
1048
1049 static int quit(void)
1050 /*  Quit.  Intransitive only.  Verify intent and exit if that's what he wants. */
1051 {
1052     if (yes(arbitrary_messages[REALLY_QUIT], arbitrary_messages[OK_MAN], arbitrary_messages[OK_MAN]))
1053         terminate(quitgame);
1054     return GO_CLEAROBJ;
1055 }
1056
1057 static int read(struct command_t command)
1058 /*  Read.  Print stuff based on objtxt.  Oyster (?) is special case. */
1059 {
1060     if (command.obj == INTRANSITIVE) {
1061         command.obj = NO_OBJECT;
1062         for (int i = 1; i <= NOBJECTS; i++) {
1063             if (HERE(i) && objects[i].texts[0] != NULL && game.prop[i] >= 0)
1064                 command.obj = command.obj * NOBJECTS + i;
1065         }
1066         if (command.obj > NOBJECTS ||
1067             command.obj == NO_OBJECT ||
1068             DARK(game.loc))
1069             return GO_UNKNOWN;
1070     }
1071
1072     if (DARK(game.loc)) {
1073         sspeak(NO_SEE, command.raw1);
1074     } else if (command.obj == OYSTER && !game.clshnt && game.closed) {
1075         game.clshnt = yes(arbitrary_messages[CLUE_QUERY], arbitrary_messages[WAYOUT_CLUE], arbitrary_messages[OK_MAN]);
1076     } else if (objects[command.obj].texts[0] == NULL ||
1077                game.prop[command.obj] == STATE_NOTFOUND) {
1078         speak(actions[command.verb].message);
1079     } else
1080         pspeak(command.obj, study, game.prop[command.obj], true);
1081     return GO_CLEAROBJ;
1082 }
1083
1084 static int reservoir(void)
1085 /*  Z'ZZZ (word gets recomputed at startup; different each game). */
1086 {
1087     if (!AT(RESER) && game.loc != LOC_RESBOTTOM) {
1088         rspeak(NOTHING_HAPPENS);
1089         return GO_CLEAROBJ;
1090     } else {
1091         state_change(RESER,
1092                      game.prop[RESER] == WATERS_PARTED ? WATERS_UNPARTED : WATERS_PARTED);
1093         if (AT(RESER))
1094             return GO_CLEAROBJ;
1095         else {
1096             game.oldlc2 = game.loc;
1097             game.newloc = LOC_NOWHERE;
1098             rspeak(NOT_BRIGHT);
1099             return GO_TERMINATE;
1100         }
1101     }
1102 }
1103
1104 static int rub(verb_t verb, obj_t obj)
1105 /* Rub.  Yields various snide remarks except for lit urn. */
1106 {
1107     if (obj == URN && game.prop[URN] == URN_LIT) {
1108         DESTROY(URN);
1109         drop(AMBER, game.loc);
1110         game.prop[AMBER] = AMBER_IN_ROCK;
1111         --game.tally;
1112         drop(CAVITY, game.loc);
1113         rspeak(URN_GENIES);
1114     } else if (obj != LAMP) {
1115         rspeak(PECULIAR_NOTHING);
1116     } else {
1117         speak(actions[verb].message);
1118     }
1119     return GO_CLEAROBJ;
1120 }
1121
1122 static int say(struct command_t *command)
1123 /* Say.  Echo WD2 (or WD1 if no WD2 (SAY WHAT?, etc.).)  Magic words override. */
1124 {
1125     if (command->wd2 > 0) {
1126         command->wd1 = command->wd2;
1127         strncpy(command->raw1, command->raw2, LINESIZE - 1);
1128     }
1129     char word1[TOKLEN + 1];
1130     packed_to_token(command->wd1, word1);
1131     long wd;
1132     enum wordtype type;
1133     get_vocab_metadata(word1, &wd, &type);
1134     if (wd == XYZZY ||
1135         wd == PLUGH ||
1136         wd == PLOVER ||
1137         wd == FEE ||
1138         wd == FIE ||
1139         wd == FOE ||
1140         wd == FOO ||
1141         wd == FUM ||
1142         wd == PART) {
1143         /* FIXME: scribbles on the interpreter's command block */
1144         wordclear(&command->wd2);
1145         return GO_LOOKUP;
1146     }
1147     sspeak(OKEY_DOKEY, command->raw1);
1148     return GO_CLEAROBJ;
1149 }
1150
1151 static int throw_support(long spk)
1152 {
1153     rspeak(spk);
1154     drop(AXE, game.loc);
1155     return GO_MOVE;
1156 }
1157
1158 static int throw (struct command_t *command)
1159 /*  Throw.  Same as discard unless axe.  Then same as attack except
1160  *  ignore bird, and if dwarf is present then one might be killed.
1161  *  (Only way to do so!)  Axe also special for dragon, bear, and
1162  *  troll.  Treasures special for troll. */
1163 {
1164     if (!TOTING(command->obj)) {
1165         speak(actions[command->verb].message);
1166         return GO_CLEAROBJ;
1167     }
1168     if (objects[command->obj].is_treasure && AT(TROLL)) {
1169         /*  Snarf a treasure for the troll. */
1170         drop(command->obj, LOC_NOWHERE);
1171         move(TROLL, LOC_NOWHERE);
1172         move(TROLL + NOBJECTS, IS_FREE);
1173         drop(TROLL2, objects[TROLL].plac);
1174         drop(TROLL2 + NOBJECTS, objects[TROLL].fixd);
1175         juggle(CHASM);
1176         rspeak(TROLL_SATISFIED);
1177         return GO_CLEAROBJ;
1178     }
1179     if (command->obj == FOOD && HERE(BEAR)) {
1180         /* But throwing food is another story. */
1181         command->obj = BEAR;
1182         return (feed(command->verb, command->obj));
1183     }
1184     if (command->obj != AXE)
1185         return (discard(command->verb, command->obj));
1186     else {
1187         if (atdwrf(game.loc) <= 0) {
1188             if (AT(DRAGON) && game.prop[DRAGON] == DRAGON_BARS)
1189                 return throw_support(DRAGON_SCALES);
1190             if (AT(TROLL))
1191                 return throw_support(TROLL_RETURNS);
1192             if (AT(OGRE))
1193                 return throw_support(OGRE_DODGE);
1194             if (HERE(BEAR) && game.prop[BEAR] == UNTAMED_BEAR) {
1195                 /* This'll teach him to throw the axe at the bear! */
1196                 drop(AXE, game.loc);
1197                 game.fixed[AXE] = IS_FIXED;
1198                 juggle(BEAR);
1199                 state_change(AXE, AXE_LOST);
1200                 return GO_CLEAROBJ;
1201             }
1202             command->obj = INTRANSITIVE;
1203             return (attack(command));
1204         }
1205
1206         if (randrange(NDWARVES + 1) < game.dflag) {
1207             return throw_support(DWARF_DODGES);
1208         } else {
1209             long i = atdwrf(game.loc);
1210             game.dseen[i] = false;
1211             game.dloc[i] = LOC_NOWHERE;
1212             return throw_support((++game.dkill == 1) ?
1213                                  DWARF_SMOKE :
1214                                  KILLED_DWARF);
1215         }
1216     }
1217 }
1218
1219 static int wake(verb_t verb, obj_t obj)
1220 /* Wake.  Only use is to disturb the dwarves. */
1221 {
1222     if (obj != DWARF ||
1223         !game.closed) {
1224         speak(actions[verb].message);
1225         return GO_CLEAROBJ;
1226     } else {
1227         rspeak(PROD_DWARF);
1228         return GO_DWARFWAKE;
1229     }
1230 }
1231
1232 static int wave(verb_t verb, obj_t obj)
1233 /* Wave.  No effect unless waving rod at fissure or at bird. */
1234 {
1235     if (obj != ROD ||
1236         !TOTING(obj) ||
1237         (!HERE(BIRD) &&
1238          (game.closng ||
1239           !AT(FISSURE)))) {
1240         speak(((!TOTING(obj)) && (obj != ROD ||
1241                                   !TOTING(ROD2))) ?
1242               arbitrary_messages[ARENT_CARRYING] :
1243               actions[verb].message);
1244         return GO_CLEAROBJ;
1245     }
1246
1247     if (game.prop[BIRD] == BIRD_UNCAGED && game.loc == game.place[STEPS] && game.prop[JADE] == STATE_NOTFOUND) {
1248         drop(JADE, game.loc);
1249         game.prop[JADE] = STATE_FOUND;
1250         --game.tally;
1251         rspeak(NECKLACE_FLY);
1252         return GO_CLEAROBJ;
1253     } else {
1254         if (game.closed) {
1255             rspeak((game.prop[BIRD] == BIRD_CAGED) ?
1256                    CAGE_FLY :
1257                    FREE_FLY);
1258             return GO_DWARFWAKE;
1259         }
1260         if (game.closng ||
1261             !AT(FISSURE)) {
1262             rspeak((game.prop[BIRD] == BIRD_CAGED) ?
1263                    CAGE_FLY :
1264                    FREE_FLY);
1265             return GO_CLEAROBJ;
1266         }
1267         if (HERE(BIRD))
1268             rspeak((game.prop[BIRD] == BIRD_CAGED) ?
1269                    CAGE_FLY :
1270                    FREE_FLY);
1271
1272         state_change(FISSURE,
1273                      game.prop[FISSURE] == BRIDGED ? UNBRIDGED : BRIDGED);
1274         return GO_CLEAROBJ;
1275     }
1276 }
1277
1278 int action(struct command_t *command)
1279 /*  Analyse a verb.  Remember what it was, go back for object if second word
1280  *  unless verb is "say", which snarfs arbitrary second word.
1281  */
1282 {
1283     if (command->part == unknown) {
1284         /*  Analyse an object word.  See if the thing is here, whether
1285          *  we've got a verb yet, and so on.  Object must be here
1286          *  unless verb is "find" or "invent(ory)" (and no new verb
1287          *  yet to be analysed).  Water and oil are also funny, since
1288          *  they are never actually dropped at any location, but might
1289          *  be here inside the bottle or urn or as a feature of the
1290          *  location. */
1291         if (HERE(command->obj))
1292             /* FALL THROUGH */;
1293         else if (command->obj == GRATE) {
1294             if (game.loc == LOC_START ||
1295                 game.loc == LOC_VALLEY ||
1296                 game.loc == LOC_SLIT) {
1297                 command->obj = DPRSSN;
1298             }
1299             if (game.loc == LOC_COBBLE ||
1300                 game.loc == LOC_DEBRIS ||
1301                 game.loc == LOC_AWKWARD ||
1302                 game.loc == LOC_BIRD ||
1303                 game.loc == LOC_PITTOP) {
1304                 command->obj = ENTRNC;
1305             }
1306         } else if (command->obj == DWARF && atdwrf(game.loc) > 0)
1307             /* FALL THROUGH */;
1308         else if ((LIQUID() == command->obj && HERE(BOTTLE)) ||
1309                  command->obj == LIQLOC(game.loc))
1310             /* FALL THROUGH */;
1311         else if (command->obj == OIL && HERE(URN) && game.prop[URN] != URN_EMPTY) {
1312             command->obj = URN;
1313             /* FALL THROUGH */;
1314         } else if (command->obj == PLANT && AT(PLANT2) && game.prop[PLANT2] != PLANT_THIRSTY) {
1315             command->obj = PLANT2;
1316             /* FALL THROUGH */;
1317         } else if (command->obj == KNIFE && game.knfloc == game.loc) {
1318             game.knfloc = -1;
1319             rspeak(KNIVES_VANISH);
1320             return GO_CLEAROBJ;
1321         } else if (command->obj == ROD && HERE(ROD2)) {
1322             command->obj = ROD2;
1323             /* FALL THROUGH */;
1324         } else if ((command->verb == FIND ||
1325                     command->verb == INVENTORY) && command->wd2 <= 0)
1326             /* FALL THROUGH */;
1327         else {
1328             sspeak(NO_SEE, command->raw1);
1329             return GO_CLEAROBJ;
1330         }
1331
1332         if (command->wd2 > 0)
1333             return GO_WORD2;
1334         if (command->verb != 0)
1335             command->part = transitive;
1336     }
1337
1338     switch (command->part) {
1339     case intransitive:
1340         if (command->wd2 > 0 && command->verb != SAY)
1341             return GO_WORD2;
1342         if (command->verb == SAY)
1343             command->obj = command->wd2;
1344         if (command->obj == NO_OBJECT ||
1345             command->obj == INTRANSITIVE) {
1346             /*  Analyse an intransitive verb (ie, no object given yet). */
1347             switch (command->verb) {
1348             case CARRY:
1349                 return vcarry(command->verb, INTRANSITIVE);
1350             case  DROP:
1351                 return GO_UNKNOWN;
1352             case  SAY:
1353                 return GO_UNKNOWN;
1354             case  UNLOCK:
1355                 return lock(command->verb, INTRANSITIVE);
1356             case  NOTHING: {
1357                 rspeak(OK_MAN);
1358                 return (GO_CLEAROBJ);
1359             }
1360             case  LOCK:
1361                 return lock(command->verb, INTRANSITIVE);
1362             case  LIGHT:
1363                 return light(command->verb, INTRANSITIVE);
1364             case  EXTINGUISH:
1365                 return extinguish(command->verb, INTRANSITIVE);
1366             case  WAVE:
1367                 return GO_UNKNOWN;
1368             case  TAME:
1369                 return GO_UNKNOWN;
1370             case GO: {
1371                 speak(actions[command->verb].message);
1372                 return GO_CLEAROBJ;
1373             }
1374             case ATTACK:
1375                 command->obj = INTRANSITIVE;
1376                 return attack(command);
1377             case POUR:
1378                 return pour(command->verb, INTRANSITIVE);
1379             case EAT:
1380                 return eat(command->verb, INTRANSITIVE);
1381             case DRINK:
1382                 return drink(command->verb, INTRANSITIVE);
1383             case RUB:
1384                 return GO_UNKNOWN;
1385             case THROW:
1386                 return GO_UNKNOWN;
1387             case QUIT:
1388                 return quit();
1389             case FIND:
1390                 return GO_UNKNOWN;
1391             case INVENTORY:
1392                 return inven();
1393             case FEED:
1394                 return GO_UNKNOWN;
1395             case FILL:
1396                 return fill(command->verb, INTRANSITIVE);
1397             case BLAST:
1398                 blast();
1399                 return GO_CLEAROBJ;
1400             case SCORE:
1401                 score(scoregame);
1402                 return GO_CLEAROBJ;
1403             case FEE:
1404             case FIE:
1405             case FOE:
1406             case FOO:
1407             case FUM:
1408                 return bigwords(command->id1);
1409             case BRIEF:
1410                 return brief();
1411             case READ:
1412                 command->obj = INTRANSITIVE;
1413                 return read(*command);
1414             case BREAK:
1415                 return GO_UNKNOWN;
1416             case WAKE:
1417                 return GO_UNKNOWN;
1418             case SAVE:
1419                 return suspend();
1420             case RESUME:
1421                 return resume();
1422             case FLY:
1423                 return fly(command->verb, INTRANSITIVE);
1424             case LISTEN:
1425                 return listen();
1426             case PART:
1427                 return reservoir();
1428             default:
1429                 BUG(INTRANSITIVE_ACTION_VERB_EXCEEDS_GOTO_LIST); // LCOV_EXCL_LINE
1430             }
1431         }
1432     /* FALLTHRU */
1433     case transitive:
1434         /*  Analyse a transitive verb. */
1435         switch (command->verb) {
1436         case  CARRY:
1437             return vcarry(command->verb, command->obj);
1438         case  DROP:
1439             return discard(command->verb, command->obj);
1440         case  SAY:
1441             return say(command);
1442         case  UNLOCK:
1443             return lock(command->verb, command->obj);
1444         case  NOTHING: {
1445             rspeak(OK_MAN);
1446             return (GO_CLEAROBJ);
1447         }
1448         case  LOCK:
1449             return lock(command->verb, command->obj);
1450         case LIGHT:
1451             return light(command->verb, command->obj);
1452         case EXTINGUISH:
1453             return extinguish(command->verb, command->obj);
1454         case WAVE:
1455             return wave(command->verb, command->obj);
1456         case TAME: {
1457             speak(actions[command->verb].message);
1458             return GO_CLEAROBJ;
1459         }
1460         case GO: {
1461             speak(actions[command->verb].message);
1462             return GO_CLEAROBJ;
1463         }
1464         case ATTACK:
1465             return attack(command);
1466         case POUR:
1467             return pour(command->verb, command->obj);
1468         case EAT:
1469             return eat(command->verb, command->obj);
1470         case DRINK:
1471             return drink(command->verb, command->obj);
1472         case RUB:
1473             return rub(command->verb, command->obj);
1474         case THROW:
1475             return throw (command);
1476         case QUIT: {
1477             speak(actions[command->verb].message);
1478             return GO_CLEAROBJ;
1479         }
1480         case FIND:
1481             return find(command->verb, command->obj);
1482         case INVENTORY:
1483             return find(command->verb, command->obj);
1484         case FEED:
1485             return feed(command->verb, command->obj);
1486         case FILL:
1487             return fill(command->verb, command->obj);
1488         case BLAST:
1489             blast();
1490             return GO_CLEAROBJ;
1491         case SCORE: {
1492             speak(actions[command->verb].message);
1493             return GO_CLEAROBJ;
1494         }
1495         case FEE:
1496         case FIE:
1497         case FOE:
1498         case FOO:
1499         case FUM: {
1500             speak(actions[command->verb].message);
1501             return GO_CLEAROBJ;
1502         }
1503         case BRIEF: {
1504             speak(actions[command->verb].message);
1505             return GO_CLEAROBJ;
1506         }
1507         case READ:
1508             return read(*command);
1509         case BREAK:
1510             return vbreak(command->verb, command->obj);
1511         case WAKE:
1512             return wake(command->verb, command->obj);
1513         case SAVE: {
1514             speak(actions[command->verb].message);
1515             return GO_CLEAROBJ;
1516         }
1517         case RESUME: {
1518             speak(actions[command->verb].message);
1519             return GO_CLEAROBJ;
1520         }
1521         case FLY:
1522             return fly(command->verb, command->obj);
1523         case LISTEN: {
1524             speak(actions[command->verb].message);
1525             return GO_CLEAROBJ;
1526         }
1527         case PART:
1528             return reservoir();
1529         default:
1530             BUG(TRANSITIVE_ACTION_VERB_EXCEEDS_GOTO_LIST); // LCOV_EXCL_LINE
1531         }
1532     case unknown:
1533         /* Unknown verb, couldn't deduce object - might need hint */
1534         sspeak(WHAT_DO, command->raw1);
1535         return GO_CHECKHINT;
1536     default:
1537         BUG(SPEECHPART_NOT_TRANSITIVE_OR_INTRANSITIVE_OR_UNKNOWN); // LCOV_EXCL_LINE
1538     }
1539 }