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         switch (obj) {
 315         case PLANT:
 316             /* Next guard tests whether plant is tiny or stashed */
 317             rspeak(game.prop[PLANT] <= PLANT_THIRSTY ? DEEP_ROOTS : YOU_JOKING);
 318             break;
 319         case BEAR:
 320             rspeak( game.prop[BEAR] == SITTING_BEAR ? BEAR_CHAINED : YOU_JOKING);
 321             break;
 322         case CHAIN:
 323             rspeak( game.prop[BEAR] != UNTAMED_BEAR ? STILL_LOCKED : YOU_JOKING);
 324             break;
 325         case RUG:
 326             rspeak(game.prop[RUG] == RUG_HOVER ? RUG_HOVERS : YOU_JOKING);
 327             break;
 328         case URN:
 329             rspeak(URN_NOBUDGE);
 330             break;
 331         case CAVITY:
 332             rspeak(DOUGHNUT_HOLES);
 333             break;
 334         case BLOOD:
 335             rspeak(FEW_DROPS);
 336             break;
 337         case SIGN:
 338             rspeak(HAND_PASSTHROUGH);
 339             break;
 340         default:
 341             rspeak(YOU_JOKING);
 342         }
 343         return GO_CLEAROBJ;
 344     }
 345
 346     if (obj == WATER ||
 347         obj == OIL) {
 348         if (!HERE(BOTTLE) ||
 349             LIQUID() != obj) {
 350             if (!TOTING(BOTTLE)) {
 351                 rspeak(NO_CONTAINER);
 352                 return GO_CLEAROBJ;
 353             }
 354             if (game.prop[BOTTLE] == EMPTY_BOTTLE) {
 355                 return (fill(verb, BOTTLE));
 356             } else
 357                 rspeak(BOTTLE_FULL);
 358             return GO_CLEAROBJ;
 359         }
 360         obj = BOTTLE;
 361     }
 362
 363     if (game.holdng >= INVLIMIT) {
 364         rspeak(CARRY_LIMIT);
 365         return GO_CLEAROBJ;
 366
 367     }
 368
 369     if (obj == BIRD && game.prop[BIRD] != BIRD_CAGED && STASHED(BIRD) != BIRD_CAGED) {
 370         if (game.prop[BIRD] == BIRD_FOREST_UNCAGED) {
 371             DESTROY(BIRD);
 372             rspeak(BIRD_CRAP);
 373             return GO_CLEAROBJ;
 374         }
 375         if (!TOTING(CAGE)) {
 376             rspeak(CANNOT_CARRY);
 377             return GO_CLEAROBJ;
 378         }
 379         if (TOTING(ROD)) {
 380             rspeak(BIRD_EVADES);
 381             return GO_CLEAROBJ;
 382         }
 383         game.prop[BIRD] = BIRD_CAGED;
 384     }
 385     if ((obj == BIRD ||
 386          obj == CAGE) &&
 387         (game.prop[BIRD] == BIRD_CAGED || STASHED(BIRD) == BIRD_CAGED)) {
 388         /* expression maps BIRD to CAGE and CAGE to BIRD */
 389         carry(BIRD + CAGE - obj, game.loc);
 390     }
 391
 392     carry(obj, game.loc);
 393
 394     if (obj == BOTTLE && LIQUID() != NO_OBJECT)
 395         game.place[LIQUID()] = CARRIED;
 396
 397     if (GSTONE(obj) && game.prop[obj] != STATE_FOUND) {
 398         game.prop[obj] = STATE_FOUND;
 399         game.prop[CAVITY] = CAVITY_EMPTY;
 400     }
 401     rspeak(OK_MAN);
 402     return GO_CLEAROBJ;
 403 }
 404
 405 static int chain(verb_t verb)
 406 /* Do something to the bear's chain */
 407 {
 408     if (verb != LOCK) {
 409         if (game.prop[BEAR] == UNTAMED_BEAR) {
 410             rspeak(BEAR_BLOCKS);
 411             return GO_CLEAROBJ;
 412         }
 413         if (game.prop[CHAIN] == CHAIN_HEAP) {
 414             rspeak(ALREADY_UNLOCKED);
 415             return GO_CLEAROBJ;
 416         }
 417         game.prop[CHAIN] = CHAIN_HEAP;
 418         game.fixed[CHAIN] = IS_FREE;
 419         if (game.prop[BEAR] != BEAR_DEAD)
 420             game.prop[BEAR] = CONTENTED_BEAR;
 421
 422         switch (game.prop[BEAR]) {
 423         case BEAR_DEAD:
 424             // LCOV_EXCL_START
 425             /* Can't be reached as long as the only way for the bear to die
 426              * is from a bridge collapse. Leave in in case this changes, but
 427              * exclude from coverage testing. */
 428             game.fixed[BEAR] = IS_FIXED;
 429             break;
 430         // LCOV_EXCL_STOP
 431         default:
 432             game.fixed[BEAR] = IS_FREE;
 433         }
 434         rspeak(CHAIN_UNLOCKED);
 435         return GO_CLEAROBJ;
 436     }
 437
 438     if (game.prop[CHAIN] != CHAIN_HEAP) {
 439         rspeak(ALREADY_LOCKED);
 440         return GO_CLEAROBJ;
 441     }
 442     if (game.loc != objects[CHAIN].plac) {
 443         rspeak(NO_LOCKSITE);
 444         return GO_CLEAROBJ;
 445     }
 446
 447     game.prop[CHAIN] = CHAIN_FIXED;
 448
 449     if (TOTING(CHAIN))
 450         drop(CHAIN, game.loc);
 451     game.fixed[CHAIN] = IS_FIXED;
 452
 453     rspeak(CHAIN_LOCKED);
 454     return GO_CLEAROBJ;
 455 }
 456
 457 static int discard(verb_t verb, obj_t obj)
 458 /*  Discard object.  "Throw" also comes here for most objects.  Special cases for
 459  *  bird (might attack snake or dragon) and cage (might contain bird) and vase.
 460  *  Drop coins at vending machine for extra batteries. */
 461 {
 462     if (obj == ROD && !TOTING(ROD) && TOTING(ROD2)) {
 463         obj = ROD2;
 464     }
 465
 466     if (!TOTING(obj)) {
 467         speak(actions[verb].message);
 468         return GO_CLEAROBJ;
 469     }
 470
 471     if (GSTONE(obj) && AT(CAVITY) && game.prop[CAVITY] != CAVITY_FULL) {
 472         rspeak(GEM_FITS);
 473         game.prop[obj] = STATE_IN_CAVITY;
 474         game.prop[CAVITY] = CAVITY_FULL;
 475         if (HERE(RUG) && ((obj == EMERALD && game.prop[RUG] != RUG_HOVER) ||
 476                           (obj == RUBY && game.prop[RUG] == RUG_HOVER))) {
 477             if (obj == RUBY)
 478                 rspeak(RUG_SETTLES);
 479             else if (TOTING(RUG))
 480                 rspeak(RUG_WIGGLES);
 481             else
 482                 rspeak(RUG_RISES);
 483             if (!TOTING(RUG) || obj == RUBY) {
 484                 int k = (game.prop[RUG] == RUG_HOVER) ? RUG_FLOOR : RUG_HOVER;
 485                 game.prop[RUG] = k;
 486                 if (k == RUG_HOVER)
 487                     k = objects[SAPPH].plac;
 488                 move(RUG + NOBJECTS, k);
 489             }
 490         }
 491         drop(obj, game.loc);
 492         return GO_CLEAROBJ;
 493     }
 494
 495     if (obj == COINS && HERE(VEND)) {
 496         DESTROY(COINS);
 497         drop(BATTERY, game.loc);
 498         pspeak(BATTERY, look, FRESH_BATTERIES, true);
 499         return GO_CLEAROBJ;
 500     }
 501
 502     if (LIQUID() == obj)
 503         obj = BOTTLE;
 504     if (obj == BOTTLE && LIQUID() != NO_OBJECT) {
 505         game.place[LIQUID()] = LOC_NOWHERE;
 506     }
 507
 508     if (obj == BEAR && AT(TROLL)) {
 509         state_change(TROLL, TROLL_GONE);
 510         move(TROLL, LOC_NOWHERE);
 511         move(TROLL + NOBJECTS, IS_FREE);
 512         move(TROLL2, objects[TROLL].plac);
 513         move(TROLL2 + NOBJECTS, objects[TROLL].fixd);
 514         juggle(CHASM);
 515         drop(obj, game.loc);
 516         return GO_CLEAROBJ;
 517     }
 518
 519     if (obj == VASE) {
 520         if (game.loc != objects[PILLOW].plac) {
 521             state_change(VASE, AT(PILLOW)
 522                          ? VASE_WHOLE
 523                          : VASE_DROPPED);
 524             if (game.prop[VASE] != VASE_WHOLE)
 525                 game.fixed[VASE] = IS_FIXED;
 526             drop(obj, game.loc);
 527             return GO_CLEAROBJ;
 528         }
 529     }
 530
 531     if (obj == CAGE && game.prop[BIRD] == BIRD_CAGED) {
 532         drop(BIRD, game.loc);
 533     }
 534
 535     if (obj == BIRD) {
 536         if (AT(DRAGON) && game.prop[DRAGON] == DRAGON_BARS) {
 537             rspeak(BIRD_BURNT);
 538             DESTROY(BIRD);
 539             return GO_CLEAROBJ;
 540         }
 541         if (HERE(SNAKE)) {
 542             rspeak(BIRD_ATTACKS);
 543             if (game.closed)
 544                 return GO_DWARFWAKE;
 545             DESTROY(SNAKE);
 546             /* Set game.prop for use by travel options */
 547             game.prop[SNAKE] = SNAKE_CHASED;
 548         } else
 549             rspeak(OK_MAN);
 550
 551         game.prop[BIRD] = BIRD_UNCAGED;
 552         if (FOREST(game.loc))
 553             game.prop[BIRD] = BIRD_FOREST_UNCAGED;
 554         drop(obj, game.loc);
 555         return GO_CLEAROBJ;
 556     }
 557
 558     rspeak(OK_MAN);
 559     drop(obj, game.loc);
 560     return GO_CLEAROBJ;
 561 }
 562
 563 static int drink(verb_t verb, obj_t obj)
 564 /*  Drink.  If no object, assume water and look for it here.  If water is in
 565  *  the bottle, drink that, else must be at a water loc, so drink stream. */
 566 {
 567     if (obj == INTRANSITIVE && LIQLOC(game.loc) != WATER &&
 568         (LIQUID() != WATER || !HERE(BOTTLE))) {
 569         return GO_UNKNOWN;
 570     }
 571
 572     if (obj == BLOOD) {
 573         DESTROY(BLOOD);
 574         state_change(DRAGON, DRAGON_BLOODLESS);
 575         game.blooded = true;
 576         return GO_CLEAROBJ;
 577     }
 578
 579     if (obj != INTRANSITIVE && obj != WATER) {
 580         rspeak(RIDICULOUS_ATTEMPT);
 581         return GO_CLEAROBJ;
 582     }
 583     if (LIQUID() == WATER && HERE(BOTTLE)) {
 584         game.place[WATER] = LOC_NOWHERE;
 585         state_change(BOTTLE, EMPTY_BOTTLE);
 586         return GO_CLEAROBJ;
 587     }
 588
 589     speak(actions[verb].message);
 590     return GO_CLEAROBJ;
 591 }
 592
 593 static int eat(verb_t verb, obj_t obj)
 594 /*  Eat.  Intransitive: assume food if present, else ask what.  Transitive: food
 595  *  ok, some things lose appetite, rest are ridiculous. */
 596 {
 597     switch (obj) {
 598     case INTRANSITIVE:
 599         if (!HERE(FOOD))
 600             return GO_UNKNOWN;
 601     case FOOD:
 602         DESTROY(FOOD);
 603         rspeak(THANKS_DELICIOUS);
 604         break;
 605     case BIRD:
 606     case SNAKE:
 607     case CLAM:
 608     case OYSTER:
 609     case DWARF:
 610     case DRAGON:
 611     case TROLL:
 612     case BEAR:
 613     case OGRE:
 614         rspeak(LOST_APPETITE);
 615         break;
 616     default:
 617         speak(actions[verb].message);
 618     }
 619     return GO_CLEAROBJ;
 620 }
 621
 622 static int extinguish(verb_t verb, obj_t obj)
 623 /* Extinguish.  Lamp, urn, dragon/volcano (nice try). */
 624 {
 625     if (obj == INTRANSITIVE) {
 626         if (HERE(LAMP) && game.prop[LAMP] == LAMP_BRIGHT)
 627             obj = LAMP;
 628         if (HERE(URN) && game.prop[URN] == URN_LIT)
 629             obj = URN;
 630         if (obj == INTRANSITIVE)
 631             return GO_UNKNOWN;
 632     }
 633
 634     switch (obj) {
 635     case URN:
 636         if (game.prop[URN] != URN_EMPTY) {
 637             state_change(URN, URN_DARK);
 638         } else {
 639             pspeak(URN, change, URN_DARK, true);
 640         }
 641         break;
 642     case LAMP:
 643         state_change(LAMP, LAMP_DARK);
 644         rspeak(DARK(game.loc) ?
 645                PITCH_DARK :
 646                NO_MESSAGE);
 647         break;
 648     case DRAGON:
 649     case VOLCANO:
 650         rspeak(BEYOND_POWER);
 651         break;
 652     default:
 653         speak(actions[verb].message);
 654     }
 655     return GO_CLEAROBJ;
 656 }
 657
 658 static int feed(verb_t verb, obj_t obj)
 659 /*  Feed.  If bird, no seed.  Snake, dragon, troll: quip.  If dwarf, make him
 660  *  mad.  Bear, special. */
 661 {
 662     switch (obj) {
 663     case BIRD:
 664         rspeak(BIRD_PINING);
 665         break;
 666     case DRAGON:
 667         if (game.prop[DRAGON] != DRAGON_BARS)
 668             rspeak(RIDICULOUS_ATTEMPT);
 669         else
 670             rspeak(NOTHING_EDIBLE);
 671         break;
 672     case SNAKE:
 673         if (!game.closed && HERE(BIRD)) {
 674             DESTROY(BIRD);
 675             rspeak(BIRD_DEVOURED);
 676         } else
 677             rspeak(NOTHING_EDIBLE);
 678         break;
 679     case TROLL:
 680         rspeak(TROLL_VICES);
 681         break;
 682     case DWARF:
 683         if (HERE(FOOD)) {
 684             game.dflag += 2;
 685             rspeak(REALLY_MAD);
 686         } else
 687             speak(actions[verb].message);
 688         break;
 689     case BEAR:
 690         if (game.prop[BEAR] == BEAR_DEAD) {
 691             rspeak(RIDICULOUS_ATTEMPT);
 692             break;
 693         }
 694         if (game.prop[BEAR] == UNTAMED_BEAR) {
 695             if (HERE(FOOD)) {
 696                 DESTROY(FOOD);
 697                 game.fixed[AXE] = IS_FREE;
 698                 game.prop[AXE] = AXE_HERE;
 699                 state_change(BEAR, SITTING_BEAR);
 700             } else
 701                 rspeak(NOTHING_EDIBLE);
 702             break;
 703         }
 704         speak(actions[verb].message);
 705         break;
 706     case OGRE:
 707         if (HERE(FOOD))
 708             rspeak(OGRE_FULL);
 709         else
 710             speak(actions[verb].message);
 711         break;
 712     default:
 713         rspeak(AM_GAME);
 714     }
 715     return GO_CLEAROBJ;
 716 }
 717
 718 int fill(verb_t verb, obj_t obj)
 719 /*  Fill.  Bottle or urn must be empty, and liquid available.  (Vase
 720  *  is nasty.) */
 721 {
 722     if (obj == VASE) {
 723         if (LIQLOC(game.loc) == NO_OBJECT) {
 724             rspeak(FILL_INVALID);
 725             return GO_CLEAROBJ;
 726         }
 727         if (!TOTING(VASE)) {
 728             rspeak(ARENT_CARRYING);
 729             return GO_CLEAROBJ;
 730         }
 731         rspeak(SHATTER_VASE);
 732         game.prop[VASE] = VASE_BROKEN;
 733         game.fixed[VASE] = IS_FIXED;
 734         drop(VASE, game.loc);
 735         return GO_CLEAROBJ;
 736     }
 737
 738     if (obj == URN) {
 739         if (game.prop[URN] != URN_EMPTY) {
 740             rspeak(FULL_URN);
 741             return GO_CLEAROBJ;
 742         }
 743         if (!HERE(BOTTLE)) {
 744             rspeak(FILL_INVALID);
 745             return GO_CLEAROBJ;
 746         }
 747         int k = LIQUID();
 748         switch (k) {
 749         case WATER:
 750             game.prop[BOTTLE] = EMPTY_BOTTLE;
 751             rspeak(WATER_URN);
 752             break;
 753         case OIL:
 754             game.prop[URN] = URN_DARK;
 755             game.prop[BOTTLE] = EMPTY_BOTTLE;
 756             rspeak(OIL_URN);
 757             break;
 758         case NO_OBJECT:
 759         default:
 760             rspeak(FILL_INVALID);
 761             return GO_CLEAROBJ;
 762         }
 763         game.place[k] = LOC_NOWHERE;
 764         return GO_CLEAROBJ;
 765     }
 766     if (obj != INTRANSITIVE && obj != BOTTLE) {
 767         speak(actions[verb].message);
 768         return GO_CLEAROBJ;
 769     }
 770     if (obj == INTRANSITIVE && !HERE(BOTTLE))
 771         return GO_UNKNOWN;
 772
 773     if (HERE(URN) && game.prop[URN] != URN_EMPTY) {
 774         rspeak(URN_NOPOUR);
 775         return GO_CLEAROBJ;
 776     }
 777     if (LIQUID() != NO_OBJECT) {
 778         rspeak(BOTTLE_FULL);
 779         return GO_CLEAROBJ;
 780     }
 781     if (LIQLOC(game.loc) == NO_OBJECT) {
 782         rspeak(NO_LIQUID);
 783         return GO_CLEAROBJ;
 784     }
 785
 786     state_change(BOTTLE, (LIQLOC(game.loc) == OIL)
 787                  ? OIL_BOTTLE
 788                  : WATER_BOTTLE);
 789     if (TOTING(BOTTLE))
 790         game.place[LIQUID()] = CARRIED;
 791     return GO_CLEAROBJ;
 792 }
 793
 794 static int find(verb_t verb, obj_t obj)
 795 /* Find.  Might be carrying it, or it might be here.  Else give caveat. */
 796 {
 797     if (TOTING(obj)) {
 798         rspeak(ALREADY_CARRYING);
 799         return GO_CLEAROBJ;
 800     }
 801
 802     if (game.closed) {
 803         rspeak(NEEDED_NEARBY);
 804         return GO_CLEAROBJ;
 805     }
 806
 807     if (AT(obj) ||
 808         (LIQUID() == obj && AT(BOTTLE)) ||
 809         obj == LIQLOC(game.loc) ||
 810         (obj == DWARF && atdwrf(game.loc) > 0)) {
 811         rspeak(YOU_HAVEIT);
 812         return GO_CLEAROBJ;
 813     }
 814
 815
 816     speak(actions[verb].message);
 817     return GO_CLEAROBJ;
 818 }
 819
 820 static int fly(verb_t verb, obj_t obj)
 821 /* Fly.  Snide remarks unless hovering rug is here. */
 822 {
 823     if (obj == INTRANSITIVE) {
 824         if (!HERE(RUG)) {
 825             rspeak(FLAP_ARMS);
 826             return GO_CLEAROBJ;
 827         }
 828         if (game.prop[RUG] != RUG_HOVER) {
 829             rspeak(RUG_NOTHING2);
 830             return GO_CLEAROBJ;
 831         }
 832         obj = RUG;
 833     }
 834
 835     if (obj != RUG) {
 836         speak(actions[verb].message);
 837         return GO_CLEAROBJ;
 838     }
 839     if (game.prop[RUG] != RUG_HOVER) {
 840         rspeak(RUG_NOTHING1);
 841         return GO_CLEAROBJ;
 842     }
 843     game.oldlc2 = game.oldloc;
 844     game.oldloc = game.loc;
 845
 846     if (game.prop[SAPPH] == STATE_NOTFOUND) {
 847         game.newloc = game.place[SAPPH];
 848         rspeak(RUG_GOES);
 849     } else {
 850         game.newloc = LOC_CLIFF;
 851         rspeak(RUG_RETURNS);
 852     }
 853     return GO_TERMINATE;
 854 }
 855
 856 static int inven(void)
 857 /* Inventory. If object, treat same as find.  Else report on current burden. */
 858 {
 859     bool empty = true;
 860     for (obj_t i = 1; i <= NOBJECTS; i++) {
 861         if (i == BEAR ||
 862             !TOTING(i))
 863             continue;
 864         if (empty) {
 865             rspeak(NOW_HOLDING);
 866             empty = false;
 867         }
 868         pspeak(i, touch, -1, false);
 869     }
 870     if (TOTING(BEAR))
 871         rspeak(TAME_BEAR);
 872     if (empty)
 873         rspeak(NO_CARRY);
 874     return GO_CLEAROBJ;
 875 }
 876
 877 static int light(verb_t verb, obj_t obj)
 878 /*  Light.  Applicable only to lamp and urn. */
 879 {
 880     if (obj == INTRANSITIVE) {
 881         int selects = 0;
 882         if (HERE(LAMP) && game.prop[LAMP] == LAMP_DARK && game.limit >= 0) {
 883             obj = LAMP;
 884             selects++;
 885         }
 886         if (HERE(URN) && game.prop[URN] == URN_DARK) {
 887             obj =  URN;
 888             selects++;
 889         }
 890         if (selects != 1)
 891             return GO_UNKNOWN;
 892     }
 893
 894     switch (obj) {
 895     case URN:
 896         state_change(URN, game.prop[URN] == URN_EMPTY ?
 897                      URN_EMPTY :
 898                      URN_LIT);
 899         break;
 900     case LAMP:
 901         if (game.limit < 0) {
 902             rspeak(LAMP_OUT);
 903             break;
 904         }
 905         state_change(LAMP, LAMP_BRIGHT);
 906         if (game.wzdark)
 907             return GO_TOP;
 908         break;
 909     default:
 910         speak(actions[verb].message);
 911     }
 912     return GO_CLEAROBJ;
 913 }
 914
 915 static int listen(void)
 916 /*  Listen.  Intransitive only.  Print stuff based on object sound proprties. */
 917 {
 918     long sound = locations[game.loc].sound;
 919     if (sound != SILENT) {
 920         rspeak(sound);
 921         if (!locations[game.loc].loud)
 922             rspeak(NO_MESSAGE);
 923         return GO_CLEAROBJ;
 924     }
 925     for (obj_t i = 1; i <= NOBJECTS; i++) {
 926         if (!HERE(i) ||
 927             objects[i].sounds[0] == NULL ||
 928             game.prop[i] < 0)
 929             continue;
 930         int mi =  game.prop[i];
 931         /* (ESR) Some unpleasant magic on object states here. Ideally
 932          * we'd have liked the bird to be a normal object that we can
 933          * use state_change() on; can't do it, because there are
 934          * actually two different series of per-state birdsounds
 935          * depending on whether player has drunk dragon's blood. */
 936         if (i == BIRD)
 937             mi += 3 * game.blooded;
 938         long packed_zzword = token_to_packed(game.zzword);
 939         pspeak(i, hear, mi, true, packed_zzword);
 940         rspeak(NO_MESSAGE);
 941         if (i == BIRD && mi == BIRD_ENDSTATE)
 942             DESTROY(BIRD);
 943         return GO_CLEAROBJ;
 944     }
 945     rspeak(ALL_SILENT);
 946     return GO_CLEAROBJ;
 947 }
 948
 949 static int lock(verb_t verb, obj_t obj)
 950 /* Lock, unlock, no object given.  Assume various things if present. */
 951 {
 952     if (obj == INTRANSITIVE) {
 953         if (HERE(CLAM))
 954             obj = CLAM;
 955         if (HERE(OYSTER))
 956             obj = OYSTER;
 957         if (AT(DOOR))
 958             obj = DOOR;
 959         if (AT(GRATE))
 960             obj = GRATE;
 961         if (HERE(CHAIN))
 962             obj = CHAIN;
 963         if (obj == INTRANSITIVE) {
 964             rspeak(NOTHING_LOCKED);
 965             return GO_CLEAROBJ;
 966         }
 967     }
 968
 969     /*  Lock, unlock object.  Special stuff for opening clam/oyster
 970      *  and for chain. */
 971
 972     switch (obj) {
 973     case CHAIN:
 974         if (HERE(KEYS)) {
 975             return chain(verb);
 976         } else
 977             rspeak(NO_KEYS);
 978         break;
 979     case GRATE:
 980         if (HERE(KEYS)) {
 981             if (game.closng) {
 982                 rspeak(EXIT_CLOSED);
 983                 if (!game.panic)
 984                     game.clock2 = PANICTIME;
 985                 game.panic = true;
 986             } else {
 987                 state_change(GRATE, (verb == LOCK) ?
 988                              GRATE_CLOSED :
 989                              GRATE_OPEN);
 990             }
 991         } else
 992             rspeak(NO_KEYS);
 993         break;
 994     case CLAM:
 995         if (verb == LOCK)
 996             rspeak(HUH_MAN);
 997         else if (!TOTING(TRIDENT))
 998             rspeak(OYSTER_OPENER);
 999         else {
1000             DESTROY(CLAM);
1001             drop(OYSTER, game.loc);
1002             drop(PEARL, LOC_CULDESAC);
1003             rspeak(PEARL_FALLS);
1004         }
1005         break;
1006     case OYSTER:
1007         if (verb == LOCK)
1008             rspeak(HUH_MAN);
1009         else
1010             rspeak(OYSTER_OPENER);
1011         break;
1012     case DOOR:
1013         rspeak((game.prop[DOOR] == DOOR_UNRUSTED) ? OK_MAN : RUSTY_DOOR);
1014         break;
1015     case CAGE:
1016         rspeak( NO_LOCK);
1017         break;
1018     case KEYS:
1019         rspeak(CANNOT_UNLOCK);
1020         break;
1021     default:
1022         speak(actions[verb].message);
1023     }
1024
1025     return GO_CLEAROBJ;
1026 }
1027
1028 static int pour(verb_t verb, obj_t obj)
1029 /*  Pour.  If no object, or object is bottle, assume contents of bottle.
1030  *  special tests for pouring water or oil on plant or rusty door. */
1031 {
1032     if (obj == BOTTLE ||
1033         obj == INTRANSITIVE)
1034         obj = LIQUID();
1035     if (obj == NO_OBJECT)
1036         return GO_UNKNOWN;
1037     if (!TOTING(obj)) {
1038         speak(actions[verb].message);
1039         return GO_CLEAROBJ;
1040     }
1041
1042     if (obj != OIL && obj != WATER) {
1043         rspeak(CANT_POUR);
1044         return GO_CLEAROBJ;
1045     }
1046     if (HERE(URN) && game.prop[URN] == URN_EMPTY)
1047         return fill(verb, URN);
1048     game.prop[BOTTLE] = EMPTY_BOTTLE;
1049     game.place[obj] = LOC_NOWHERE;
1050     if (!(AT(PLANT) ||
1051           AT(DOOR))) {
1052         rspeak(GROUND_WET);
1053         return GO_CLEAROBJ;
1054     }
1055     if (!AT(DOOR)) {
1056         if (obj == WATER) {
1057             /* cycle through the three plant states */
1058             state_change(PLANT, MOD(game.prop[PLANT] + 1, 3));
1059             game.prop[PLANT2] = game.prop[PLANT];
1060             return GO_MOVE;
1061         } else {
1062             rspeak(SHAKING_LEAVES);
1063             return GO_CLEAROBJ;
1064         }
1065     } else {
1066         state_change(DOOR, (obj == OIL) ?
1067                      DOOR_UNRUSTED :
1068                      DOOR_RUSTED);
1069         return GO_CLEAROBJ;
1070     }
1071 }
1072
1073 static int quit(void)
1074 /*  Quit.  Intransitive only.  Verify intent and exit if that's what he wants. */
1075 {
1076     if (yes(arbitrary_messages[REALLY_QUIT], arbitrary_messages[OK_MAN], arbitrary_messages[OK_MAN]))
1077         terminate(quitgame);
1078     return GO_CLEAROBJ;
1079 }
1080
1081 static int read(struct command_t command)
1082 /*  Read.  Print stuff based on objtxt.  Oyster (?) is special case. */
1083 {
1084     if (command.obj == INTRANSITIVE) {
1085         command.obj = NO_OBJECT;
1086         for (int i = 1; i <= NOBJECTS; i++) {
1087             if (HERE(i) && objects[i].texts[0] != NULL && game.prop[i] >= 0)
1088                 command.obj = command.obj * NOBJECTS + i;
1089         }
1090         if (command.obj > NOBJECTS ||
1091             command.obj == NO_OBJECT ||
1092             DARK(game.loc))
1093             return GO_UNKNOWN;
1094     }
1095
1096     if (DARK(game.loc)) {
1097         sspeak(NO_SEE, command.raw1);
1098     } else if (command.obj == OYSTER && !game.clshnt && game.closed) {
1099         game.clshnt = yes(arbitrary_messages[CLUE_QUERY], arbitrary_messages[WAYOUT_CLUE], arbitrary_messages[OK_MAN]);
1100     } else if (objects[command.obj].texts[0] == NULL ||
1101                game.prop[command.obj] == STATE_NOTFOUND) {
1102         speak(actions[command.verb].message);
1103     } else
1104         pspeak(command.obj, study, game.prop[command.obj], true);
1105     return GO_CLEAROBJ;
1106 }
1107
1108 static int reservoir(void)
1109 /*  Z'ZZZ (word gets recomputed at startup; different each game). */
1110 {
1111     if (!AT(RESER) && game.loc != LOC_RESBOTTOM) {
1112         rspeak(NOTHING_HAPPENS);
1113         return GO_CLEAROBJ;
1114     } else {
1115         state_change(RESER,
1116                      game.prop[RESER] == WATERS_PARTED ? WATERS_UNPARTED : WATERS_PARTED);
1117         if (AT(RESER))
1118             return GO_CLEAROBJ;
1119         else {
1120             game.oldlc2 = game.loc;
1121             game.newloc = LOC_NOWHERE;
1122             rspeak(NOT_BRIGHT);
1123             return GO_TERMINATE;
1124         }
1125     }
1126 }
1127
1128 static int rub(verb_t verb, obj_t obj)
1129 /* Rub.  Yields various snide remarks except for lit urn. */
1130 {
1131     if (obj == URN && game.prop[URN] == URN_LIT) {
1132         DESTROY(URN);
1133         drop(AMBER, game.loc);
1134         game.prop[AMBER] = AMBER_IN_ROCK;
1135         --game.tally;
1136         drop(CAVITY, game.loc);
1137         rspeak(URN_GENIES);
1138     } else if (obj != LAMP) {
1139         rspeak(PECULIAR_NOTHING);
1140     } else {
1141         speak(actions[verb].message);
1142     }
1143     return GO_CLEAROBJ;
1144 }
1145
1146 static int say(struct command_t *command)
1147 /* Say.  Echo WD2 (or WD1 if no WD2 (SAY WHAT?, etc.).)  Magic words override. */
1148 {
1149     if (command->wd2 > 0) {
1150         command->wd1 = command->wd2;
1151         strncpy(command->raw1, command->raw2, LINESIZE - 1);
1152     }
1153     char word1[TOKLEN + 1];
1154     packed_to_token(command->wd1, word1);
1155     long wd;
1156     enum wordtype type;
1157     get_vocab_metadata(word1, &wd, &type);
1158     if (wd == XYZZY ||
1159         wd == PLUGH ||
1160         wd == PLOVER ||
1161         wd == FEE ||
1162         wd == FIE ||
1163         wd == FOE ||
1164         wd == FOO ||
1165         wd == FUM ||
1166         wd == PART) {
1167         /* FIXME: scribbles on the interpreter's command block */
1168         wordclear(&command->wd2);
1169         return GO_LOOKUP;
1170     }
1171     sspeak(OKEY_DOKEY, command->raw1);
1172     return GO_CLEAROBJ;
1173 }
1174
1175 static int throw_support(long spk)
1176 {
1177     rspeak(spk);
1178     drop(AXE, game.loc);
1179     return GO_MOVE;
1180 }
1181
1182 static int throw (struct command_t *command)
1183 /*  Throw.  Same as discard unless axe.  Then same as attack except
1184  *  ignore bird, and if dwarf is present then one might be killed.
1185  *  (Only way to do so!)  Axe also special for dragon, bear, and
1186  *  troll.  Treasures special for troll. */
1187 {
1188     if (!TOTING(command->obj)) {
1189         speak(actions[command->verb].message);
1190         return GO_CLEAROBJ;
1191     }
1192     if (objects[command->obj].is_treasure && AT(TROLL)) {
1193         /*  Snarf a treasure for the troll. */
1194         drop(command->obj, LOC_NOWHERE);
1195         move(TROLL, LOC_NOWHERE);
1196         move(TROLL + NOBJECTS, IS_FREE);
1197         drop(TROLL2, objects[TROLL].plac);
1198         drop(TROLL2 + NOBJECTS, objects[TROLL].fixd);
1199         juggle(CHASM);
1200         rspeak(TROLL_SATISFIED);
1201         return GO_CLEAROBJ;
1202     }
1203     if (command->obj == FOOD && HERE(BEAR)) {
1204         /* But throwing food is another story. */
1205         command->obj = BEAR;
1206         return (feed(command->verb, command->obj));
1207     }
1208     if (command->obj != AXE)
1209         return (discard(command->verb, command->obj));
1210     else {
1211         if (atdwrf(game.loc) <= 0) {
1212             if (AT(DRAGON) && game.prop[DRAGON] == DRAGON_BARS)
1213                 return throw_support(DRAGON_SCALES);
1214             if (AT(TROLL))
1215                 return throw_support(TROLL_RETURNS);
1216             if (AT(OGRE))
1217                 return throw_support(OGRE_DODGE);
1218             if (HERE(BEAR) && game.prop[BEAR] == UNTAMED_BEAR) {
1219                 /* This'll teach him to throw the axe at the bear! */
1220                 drop(AXE, game.loc);
1221                 game.fixed[AXE] = IS_FIXED;
1222                 juggle(BEAR);
1223                 state_change(AXE, AXE_LOST);
1224                 return GO_CLEAROBJ;
1225             }
1226             command->obj = INTRANSITIVE;
1227             return (attack(command));
1228         }
1229
1230         if (randrange(NDWARVES + 1) < game.dflag) {
1231             return throw_support(DWARF_DODGES);
1232         } else {
1233             long i = atdwrf(game.loc);
1234             game.dseen[i] = false;
1235             game.dloc[i] = LOC_NOWHERE;
1236             return throw_support((++game.dkill == 1) ?
1237                                  DWARF_SMOKE :
1238                                  KILLED_DWARF);
1239         }
1240     }
1241 }
1242
1243 static int wake(verb_t verb, obj_t obj)
1244 /* Wake.  Only use is to disturb the dwarves. */
1245 {
1246     if (obj != DWARF ||
1247         !game.closed) {
1248         speak(actions[verb].message);
1249         return GO_CLEAROBJ;
1250     } else {
1251         rspeak(PROD_DWARF);
1252         return GO_DWARFWAKE;
1253     }
1254 }
1255
1256 static int wave(verb_t verb, obj_t obj)
1257 /* Wave.  No effect unless waving rod at fissure or at bird. */
1258 {
1259     if (obj != ROD ||
1260         !TOTING(obj) ||
1261         (!HERE(BIRD) &&
1262          (game.closng ||
1263           !AT(FISSURE)))) {
1264         speak(((!TOTING(obj)) && (obj != ROD ||
1265                                   !TOTING(ROD2))) ?
1266               arbitrary_messages[ARENT_CARRYING] :
1267               actions[verb].message);
1268         return GO_CLEAROBJ;
1269     }
1270
1271     if (game.prop[BIRD] == BIRD_UNCAGED && game.loc == game.place[STEPS] && game.prop[JADE] == STATE_NOTFOUND) {
1272         drop(JADE, game.loc);
1273         game.prop[JADE] = STATE_FOUND;
1274         --game.tally;
1275         rspeak(NECKLACE_FLY);
1276         return GO_CLEAROBJ;
1277     } else {
1278         if (game.closed) {
1279             rspeak((game.prop[BIRD] == BIRD_CAGED) ?
1280                    CAGE_FLY :
1281                    FREE_FLY);
1282             return GO_DWARFWAKE;
1283         }
1284         if (game.closng ||
1285             !AT(FISSURE)) {
1286             rspeak((game.prop[BIRD] == BIRD_CAGED) ?
1287                    CAGE_FLY :
1288                    FREE_FLY);
1289             return GO_CLEAROBJ;
1290         }
1291         if (HERE(BIRD))
1292             rspeak((game.prop[BIRD] == BIRD_CAGED) ?
1293                    CAGE_FLY :
1294                    FREE_FLY);
1295
1296         state_change(FISSURE,
1297                      game.prop[FISSURE] == BRIDGED ? UNBRIDGED : BRIDGED);
1298         return GO_CLEAROBJ;
1299     }
1300 }
1301
1302 int action(struct command_t *command)
1303 /*  Analyse a verb.  Remember what it was, go back for object if second word
1304  *  unless verb is "say", which snarfs arbitrary second word.
1305  */
1306 {
1307     if (command->part == unknown) {
1308         /*  Analyse an object word.  See if the thing is here, whether
1309          *  we've got a verb yet, and so on.  Object must be here
1310          *  unless verb is "find" or "invent(ory)" (and no new verb
1311          *  yet to be analysed).  Water and oil are also funny, since
1312          *  they are never actually dropped at any location, but might
1313          *  be here inside the bottle or urn or as a feature of the
1314          *  location. */
1315         if (HERE(command->obj))
1316             /* FALL THROUGH */;
1317         else if (command->obj == GRATE) {
1318             if (game.loc == LOC_START ||
1319                 game.loc == LOC_VALLEY ||
1320                 game.loc == LOC_SLIT) {
1321                 command->obj = DPRSSN;
1322             }
1323             if (game.loc == LOC_COBBLE ||
1324                 game.loc == LOC_DEBRIS ||
1325                 game.loc == LOC_AWKWARD ||
1326                 game.loc == LOC_BIRD ||
1327                 game.loc == LOC_PITTOP) {
1328                 command->obj = ENTRNC;
1329             }
1330         } else if (command->obj == DWARF && atdwrf(game.loc) > 0)
1331             /* FALL THROUGH */;
1332         else if ((LIQUID() == command->obj && HERE(BOTTLE)) ||
1333                  command->obj == LIQLOC(game.loc))
1334             /* FALL THROUGH */;
1335         else if (command->obj == OIL && HERE(URN) && game.prop[URN] != URN_EMPTY) {
1336             command->obj = URN;
1337             /* FALL THROUGH */;
1338         } else if (command->obj == PLANT && AT(PLANT2) && game.prop[PLANT2] != PLANT_THIRSTY) {
1339             command->obj = PLANT2;
1340             /* FALL THROUGH */;
1341         } else if (command->obj == KNIFE && game.knfloc == game.loc) {
1342             game.knfloc = -1;
1343             rspeak(KNIVES_VANISH);
1344             return GO_CLEAROBJ;
1345         } else if (command->obj == ROD && HERE(ROD2)) {
1346             command->obj = ROD2;
1347             /* FALL THROUGH */;
1348         } else if ((command->verb == FIND ||
1349                     command->verb == INVENTORY) && command->wd2 <= 0)
1350             /* FALL THROUGH */;
1351         else {
1352             sspeak(NO_SEE, command->raw1);
1353             return GO_CLEAROBJ;
1354         }
1355
1356         if (command->wd2 > 0)
1357             return GO_WORD2;
1358         if (command->verb != 0)
1359             command->part = transitive;
1360     }
1361
1362     switch (command->part) {
1363     case intransitive:
1364         if (command->wd2 > 0 && command->verb != SAY)
1365             return GO_WORD2;
1366         if (command->verb == SAY)
1367             command->obj = command->wd2;
1368         if (command->obj == NO_OBJECT ||
1369             command->obj == INTRANSITIVE) {
1370             /*  Analyse an intransitive verb (ie, no object given yet). */
1371             switch (command->verb) {
1372             case CARRY:
1373                 return vcarry(command->verb, INTRANSITIVE);
1374             case  DROP:
1375                 return GO_UNKNOWN;
1376             case  SAY:
1377                 return GO_UNKNOWN;
1378             case  UNLOCK:
1379                 return lock(command->verb, INTRANSITIVE);
1380             case  NOTHING: {
1381                 rspeak(OK_MAN);
1382                 return (GO_CLEAROBJ);
1383             }
1384             case  LOCK:
1385                 return lock(command->verb, INTRANSITIVE);
1386             case  LIGHT:
1387                 return light(command->verb, INTRANSITIVE);
1388             case  EXTINGUISH:
1389                 return extinguish(command->verb, INTRANSITIVE);
1390             case  WAVE:
1391                 return GO_UNKNOWN;
1392             case  TAME:
1393                 return GO_UNKNOWN;
1394             case GO: {
1395                 speak(actions[command->verb].message);
1396                 return GO_CLEAROBJ;
1397             }
1398             case ATTACK:
1399                 command->obj = INTRANSITIVE;
1400                 return attack(command);
1401             case POUR:
1402                 return pour(command->verb, INTRANSITIVE);
1403             case EAT:
1404                 return eat(command->verb, INTRANSITIVE);
1405             case DRINK:
1406                 return drink(command->verb, INTRANSITIVE);
1407             case RUB:
1408                 return GO_UNKNOWN;
1409             case THROW:
1410                 return GO_UNKNOWN;
1411             case QUIT:
1412                 return quit();
1413             case FIND:
1414                 return GO_UNKNOWN;
1415             case INVENTORY:
1416                 return inven();
1417             case FEED:
1418                 return GO_UNKNOWN;
1419             case FILL:
1420                 return fill(command->verb, INTRANSITIVE);
1421             case BLAST:
1422                 blast();
1423                 return GO_CLEAROBJ;
1424             case SCORE:
1425                 score(scoregame);
1426                 return GO_CLEAROBJ;
1427             case FEE:
1428             case FIE:
1429             case FOE:
1430             case FOO:
1431             case FUM:
1432                 return bigwords(command->id1);
1433             case BRIEF:
1434                 return brief();
1435             case READ:
1436                 command->obj = INTRANSITIVE;
1437                 return read(*command);
1438             case BREAK:
1439                 return GO_UNKNOWN;
1440             case WAKE:
1441                 return GO_UNKNOWN;
1442             case SAVE:
1443                 return suspend();
1444             case RESUME:
1445                 return resume();
1446             case FLY:
1447                 return fly(command->verb, INTRANSITIVE);
1448             case LISTEN:
1449                 return listen();
1450             case PART:
1451                 return reservoir();
1452             default:
1453                 BUG(INTRANSITIVE_ACTION_VERB_EXCEEDS_GOTO_LIST); // LCOV_EXCL_LINE
1454             }
1455         }
1456     /* FALLTHRU */
1457     case transitive:
1458         /*  Analyse a transitive verb. */
1459         switch (command->verb) {
1460         case  CARRY:
1461             return vcarry(command->verb, command->obj);
1462         case  DROP:
1463             return discard(command->verb, command->obj);
1464         case  SAY:
1465             return say(command);
1466         case  UNLOCK:
1467             return lock(command->verb, command->obj);
1468         case  NOTHING: {
1469             rspeak(OK_MAN);
1470             return (GO_CLEAROBJ);
1471         }
1472         case  LOCK:
1473             return lock(command->verb, command->obj);
1474         case LIGHT:
1475             return light(command->verb, command->obj);
1476         case EXTINGUISH:
1477             return extinguish(command->verb, command->obj);
1478         case WAVE:
1479             return wave(command->verb, command->obj);
1480         case TAME: {
1481             speak(actions[command->verb].message);
1482             return GO_CLEAROBJ;
1483         }
1484         case GO: {
1485             speak(actions[command->verb].message);
1486             return GO_CLEAROBJ;
1487         }
1488         case ATTACK:
1489             return attack(command);
1490         case POUR:
1491             return pour(command->verb, command->obj);
1492         case EAT:
1493             return eat(command->verb, command->obj);
1494         case DRINK:
1495             return drink(command->verb, command->obj);
1496         case RUB:
1497             return rub(command->verb, command->obj);
1498         case THROW:
1499             return throw (command);
1500         case QUIT: {
1501             speak(actions[command->verb].message);
1502             return GO_CLEAROBJ;
1503         }
1504         case FIND:
1505             return find(command->verb, command->obj);
1506         case INVENTORY:
1507             return find(command->verb, command->obj);
1508         case FEED:
1509             return feed(command->verb, command->obj);
1510         case FILL:
1511             return fill(command->verb, command->obj);
1512         case BLAST:
1513             blast();
1514             return GO_CLEAROBJ;
1515         case SCORE: {
1516             speak(actions[command->verb].message);
1517             return GO_CLEAROBJ;
1518         }
1519         case FEE:
1520         case FIE:
1521         case FOE:
1522         case FOO:
1523         case FUM: {
1524             speak(actions[command->verb].message);
1525             return GO_CLEAROBJ;
1526         }
1527         case BRIEF: {
1528             speak(actions[command->verb].message);
1529             return GO_CLEAROBJ;
1530         }
1531         case READ:
1532             return read(*command);
1533         case BREAK:
1534             return vbreak(command->verb, command->obj);
1535         case WAKE:
1536             return wake(command->verb, command->obj);
1537         case SAVE: {
1538             speak(actions[command->verb].message);
1539             return GO_CLEAROBJ;
1540         }
1541         case RESUME: {
1542             speak(actions[command->verb].message);
1543             return GO_CLEAROBJ;
1544         }
1545         case FLY:
1546             return fly(command->verb, command->obj);
1547         case LISTEN: {
1548             speak(actions[command->verb].message);
1549             return GO_CLEAROBJ;
1550         }
1551         case PART:
1552             return reservoir();
1553         default:
1554             BUG(TRANSITIVE_ACTION_VERB_EXCEEDS_GOTO_LIST); // LCOV_EXCL_LINE
1555         }
1556     case unknown:
1557         /* Unknown verb, couldn't deduce object - might need hint */
1558         sspeak(WHAT_DO, command->raw1);
1559         return GO_CHECKHINT;
1560     default:
1561         BUG(SPEECHPART_NOT_TRANSITIVE_OR_INTRANSITIVE_OR_UNKNOWN); // LCOV_EXCL_LINE
1562     }
1563 }