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             speak(arbitrary_messages[NASTY_DRAGON]);
 106             return GO_MOVE;
 107         }
 108         state_change(DRAGON, DRAGON_DEAD);
 109         game.prop[RUG] = RUG_FLOOR;
 110         /* Hardcoding LOC_SECRET5 as the dragon's death location is ugly.
 111          * The way it was computed before was worse; it depended on the
 112          * two dragon locations being LOC_SECRET4 and LOC_SECRET6 and
 113          * LOC_SECRET5 being right between them.
 114          */
 115         move(DRAGON + NOBJECTS, IS_FIXED);
 116         move(RUG + NOBJECTS, IS_FREE);
 117         move(DRAGON, LOC_SECRET5);
 118         move(RUG, LOC_SECRET5);
 119         drop(BLOOD, LOC_SECRET5);
 120         for (obj_t i = 1; i <= NOBJECTS; i++) {
 121             if (game.place[i] == objects[DRAGON].plac ||
 122                 game.place[i] == objects[DRAGON].fixd)
 123                 move(i, LOC_SECRET5);
 124         }
 125         game.loc = LOC_SECRET5;
 126         return GO_MOVE;
 127     }
 128
 129     if (obj == OGRE) {
 130         rspeak(OGRE_DODGE);
 131         if (atdwrf(game.loc) == 0)
 132             return GO_CLEAROBJ;
 133
 134         rspeak(KNIFE_THROWN);
 135         DESTROY(OGRE);
 136         int dwarves = 0;
 137         for (int i = 1; i < PIRATE; i++) {
 138             if (game.dloc[i] == game.loc) {
 139                 ++dwarves;
 140                 game.dloc[i] = LOC_LONGWEST;
 141                 game.dseen[i] = false;
 142             }
 143         }
 144         rspeak((dwarves > 1) ?
 145                OGRE_PANIC1 :
 146                OGRE_PANIC2);
 147         return GO_CLEAROBJ;
 148     }
 149
 150     switch (obj) {
 151     case INTRANSITIVE:
 152         rspeak(NO_TARGET);
 153         break;
 154     case CLAM:
 155     case OYSTER:
 156         rspeak(SHELL_IMPERVIOUS);
 157         break;
 158     case SNAKE:
 159         rspeak(SNAKE_WARNING);
 160         break;
 161     case DWARF:
 162         if (game.closed) {
 163             return GO_DWARFWAKE;
 164         }
 165         rspeak(BARE_HANDS_QUERY);
 166         break;
 167     case DRAGON:
 168         rspeak(ALREADY_DEAD);
 169         break;
 170     case TROLL:
 171         rspeak(ROCKY_TROLL);
 172         break;
 173     default:
 174         speak(actions[verb].message);
 175     }
 176     return GO_CLEAROBJ;
 177 }
 178
 179 static int bigwords(long id)
 180 /*  FEE FIE FOE FOO (AND FUM).  Advance to next state if given in proper order.
 181  *  Look up foo in special section of vocab to determine which word we've got.
 182  *  Last word zips the eggs back to the giant room (unless already there). */
 183 {
 184     if ((game.foobar == WORD_EMPTY && id == FEE) ||
 185         (game.foobar == FEE && id == FIE) ||
 186         (game.foobar == FIE && id == FOE) ||
 187         (game.foobar == FOE && id == FOO) ||
 188         (game.foobar == FOE && id == FUM)) {
 189         game.foobar = id;
 190         if ((id != FOO) && (id != FUM)) {
 191             rspeak(OK_MAN);
 192             return GO_CLEAROBJ;
 193         }
 194         game.foobar = WORD_EMPTY;
 195         if (game.place[EGGS] == objects[EGGS].plac ||
 196             (TOTING(EGGS) && game.loc == objects[EGGS].plac)) {
 197             rspeak(NOTHING_HAPPENS);
 198             return GO_CLEAROBJ;
 199         } else {
 200             /*  Bring back troll if we steal the eggs back from him before
 201              *  crossing. */
 202             if (game.place[EGGS] == LOC_NOWHERE && game.place[TROLL] == LOC_NOWHERE && game.prop[TROLL] == TROLL_UNPAID)
 203                 game.prop[TROLL] = TROLL_PAIDONCE;
 204             if (HERE(EGGS))
 205                 pspeak(EGGS, look, EGGS_VANISHED, true);
 206             else if (game.loc == objects[EGGS].plac)
 207                 pspeak(EGGS, look, EGGS_HERE, true);
 208             else
 209                 pspeak(EGGS, look, EGGS_DONE, true);
 210             move(EGGS, objects[EGGS].plac);
 211
 212             return GO_CLEAROBJ;
 213         }
 214     } else {
 215         if (game.loc == LOC_GIANTROOM) {
 216             rspeak(START_OVER);
 217         } else {
 218             /* This is new begavior in Open Adventure - sounds better when
 219              * player isn't in the Giant Room. */
 220             rspeak(WELL_POINTLESS);
 221         }
 222         game.foobar = WORD_EMPTY;
 223         return GO_CLEAROBJ;
 224     }
 225 }
 226
 227 static void blast(void)
 228 /*  Blast.  No effect unless you've got dynamite, which is a neat trick! */
 229 {
 230     if (game.prop[ROD2] == STATE_NOTFOUND ||
 231         !game.closed)
 232         rspeak(REQUIRES_DYNAMITE);
 233     else {
 234         if (HERE(ROD2)) {
 235             game.bonus = splatter;
 236             rspeak(SPLATTER_MESSAGE);
 237         } else if (game.loc == LOC_NE) {
 238             game.bonus = defeat;
 239             rspeak(DEFEAT_MESSAGE);
 240         } else {
 241             game.bonus = victory;
 242             rspeak(VICTORY_MESSAGE);
 243         }
 244         terminate(endgame);
 245     }
 246 }
 247
 248 static int vbreak(verb_t verb, obj_t obj)
 249 /*  Break.  Only works for mirror in repository and, of course, the vase. */
 250 {
 251     switch (obj) {
 252     case MIRROR:
 253         if (game.closed) {
 254             state_change(MIRROR, MIRROR_BROKEN);
 255             return GO_DWARFWAKE;
 256         } else {
 257             rspeak(TOO_FAR);
 258             break;
 259         }
 260     case VASE:
 261         if (game.prop[VASE] == VASE_WHOLE) {
 262             if (TOTING(VASE))
 263                 drop(VASE, game.loc);
 264             state_change(VASE, VASE_BROKEN);
 265             game.fixed[VASE] = IS_FIXED;
 266             break;
 267         }
 268     default:
 269         speak(actions[verb].message);
 270     }
 271     return (GO_CLEAROBJ);
 272 }
 273
 274 static int brief(void)
 275 /*  Brief.  Intransitive only.  Suppress long descriptions after first time. */
 276 {
 277     game.abbnum = 10000;
 278     game.detail = 3;
 279     rspeak(BRIEF_CONFIRM);
 280     return GO_CLEAROBJ;
 281 }
 282
 283 static int vcarry(verb_t verb, obj_t obj)
 284 /*  Carry an object.  Special cases for bird and cage (if bird in cage, can't
 285  *  take one without the other).  Liquids also special, since they depend on
 286  *  status of bottle.  Also various side effects, etc. */
 287 {
 288     if (obj == INTRANSITIVE) {
 289         /*  Carry, no object given yet.  OK if only one object present. */
 290         if (game.atloc[game.loc] == NO_OBJECT ||
 291             game.link[game.atloc[game.loc]] != 0 ||
 292             atdwrf(game.loc) > 0)
 293             return GO_UNKNOWN;
 294         obj = game.atloc[game.loc];
 295     }
 296
 297     if (TOTING(obj)) {
 298         speak(actions[verb].message);
 299         return GO_CLEAROBJ;
 300     }
 301
 302     if (obj == MESSAG) {
 303         rspeak(REMOVE_MESSAGE);
 304         DESTROY(MESSAG);
 305         return GO_CLEAROBJ;
 306     }
 307
 308     if (game.fixed[obj] != IS_FREE) {
 309         switch (obj) {
 310         case PLANT:
 311             /* Next guard tests whether plant is tiny or stashed */
 312             rspeak(game.prop[PLANT] <= PLANT_THIRSTY ? DEEP_ROOTS : YOU_JOKING);
 313             break;
 314         case BEAR:
 315             rspeak( game.prop[BEAR] == SITTING_BEAR ? BEAR_CHAINED : YOU_JOKING);
 316             break;
 317         case CHAIN:
 318             rspeak( game.prop[BEAR] != UNTAMED_BEAR ? STILL_LOCKED : YOU_JOKING);
 319             break;
 320         case RUG:
 321             rspeak(game.prop[RUG] == RUG_HOVER ? RUG_HOVERS : YOU_JOKING);
 322             break;
 323         case URN:
 324             rspeak(URN_NOBUDGE);
 325             break;
 326         case CAVITY:
 327             rspeak(DOUGHNUT_HOLES);
 328             break;
 329         case BLOOD:
 330             rspeak(FEW_DROPS);
 331             break;
 332         case SIGN:
 333             rspeak(HAND_PASSTHROUGH);
 334             break;
 335         default:
 336             rspeak(YOU_JOKING);
 337         }
 338         return GO_CLEAROBJ;
 339     }
 340
 341     if (obj == WATER ||
 342         obj == OIL) {
 343         if (!HERE(BOTTLE) ||
 344             LIQUID() != obj) {
 345             if (!TOTING(BOTTLE)) {
 346                 rspeak(NO_CONTAINER);
 347                 return GO_CLEAROBJ;
 348             }
 349             if (game.prop[BOTTLE] == EMPTY_BOTTLE) {
 350                 return (fill(verb, BOTTLE));
 351             } else
 352                 rspeak(BOTTLE_FULL);
 353             return GO_CLEAROBJ;
 354         }
 355         obj = BOTTLE;
 356     }
 357
 358     if (game.holdng >= INVLIMIT) {
 359         rspeak(CARRY_LIMIT);
 360         return GO_CLEAROBJ;
 361
 362     }
 363
 364     if (obj == BIRD && game.prop[BIRD] != BIRD_CAGED && STASHED(BIRD) != BIRD_CAGED) {
 365         if (game.prop[BIRD] == BIRD_FOREST_UNCAGED) {
 366             DESTROY(BIRD);
 367             rspeak(BIRD_CRAP);
 368             return GO_CLEAROBJ;
 369         }
 370         if (!TOTING(CAGE)) {
 371             rspeak(CANNOT_CARRY);
 372             return GO_CLEAROBJ;
 373         }
 374         if (TOTING(ROD)) {
 375             rspeak(BIRD_EVADES);
 376             return GO_CLEAROBJ;
 377         }
 378         game.prop[BIRD] = BIRD_CAGED;
 379     }
 380     if ((obj == BIRD ||
 381          obj == CAGE) &&
 382         (game.prop[BIRD] == BIRD_CAGED || STASHED(BIRD) == BIRD_CAGED)) {
 383         /* expression maps BIRD to CAGE and CAGE to BIRD */
 384         carry(BIRD + CAGE - obj, game.loc);
 385     }
 386
 387     carry(obj, game.loc);
 388
 389     if (obj == BOTTLE && LIQUID() != NO_OBJECT)
 390         game.place[LIQUID()] = CARRIED;
 391
 392     if (GSTONE(obj) && game.prop[obj] != STATE_FOUND) {
 393         game.prop[obj] = STATE_FOUND;
 394         game.prop[CAVITY] = CAVITY_EMPTY;
 395     }
 396     rspeak(OK_MAN);
 397     return GO_CLEAROBJ;
 398 }
 399
 400 static int chain(verb_t verb)
 401 /* Do something to the bear's chain */
 402 {
 403     if (verb != LOCK) {
 404         if (game.prop[BEAR] == UNTAMED_BEAR) {
 405             rspeak(BEAR_BLOCKS);
 406             return GO_CLEAROBJ;
 407         }
 408         if (game.prop[CHAIN] == CHAIN_HEAP) {
 409             rspeak(ALREADY_UNLOCKED);
 410             return GO_CLEAROBJ;
 411         }
 412         game.prop[CHAIN] = CHAIN_HEAP;
 413         game.fixed[CHAIN] = IS_FREE;
 414         if (game.prop[BEAR] != BEAR_DEAD)
 415             game.prop[BEAR] = CONTENTED_BEAR;
 416
 417         switch (game.prop[BEAR]) {
 418         // LCOV_EXCL_START
 419         case BEAR_DEAD:
 420             /* Can't be reached as long as the only way for the bear to die
 421              * is from a bridge collapse. Leave in in case this changes, but
 422              * exclude from coverage testing. */
 423             game.fixed[BEAR] = IS_FIXED;
 424             break;
 425         // LCOV_EXCL_STOP
 426         default:
 427             game.fixed[BEAR] = IS_FREE;
 428         }
 429         rspeak(CHAIN_UNLOCKED);
 430         return GO_CLEAROBJ;
 431     }
 432
 433     if (game.prop[CHAIN] != CHAIN_HEAP) {
 434         rspeak(ALREADY_LOCKED);
 435         return GO_CLEAROBJ;
 436     }
 437     if (game.loc != objects[CHAIN].plac) {
 438         rspeak(NO_LOCKSITE);
 439         return GO_CLEAROBJ;
 440     }
 441
 442     game.prop[CHAIN] = CHAIN_FIXED;
 443
 444     if (TOTING(CHAIN))
 445         drop(CHAIN, game.loc);
 446     game.fixed[CHAIN] = IS_FIXED;
 447
 448     rspeak(CHAIN_LOCKED);
 449     return GO_CLEAROBJ;
 450 }
 451
 452 static int discard(verb_t verb, obj_t obj)
 453 /*  Discard object.  "Throw" also comes here for most objects.  Special cases for
 454  *  bird (might attack snake or dragon) and cage (might contain bird) and vase.
 455  *  Drop coins at vending machine for extra batteries. */
 456 {
 457     if (obj == ROD && !TOTING(ROD) && TOTING(ROD2)) {
 458         obj = ROD2;
 459     }
 460
 461     if (!TOTING(obj)) {
 462         speak(actions[verb].message);
 463         return GO_CLEAROBJ;
 464     }
 465
 466     if (GSTONE(obj) && AT(CAVITY) && game.prop[CAVITY] != CAVITY_FULL) {
 467         rspeak(GEM_FITS);
 468         game.prop[obj] = STATE_IN_CAVITY;
 469         game.prop[CAVITY] = CAVITY_FULL;
 470         if (HERE(RUG) && ((obj == EMERALD && game.prop[RUG] != RUG_HOVER) ||
 471                           (obj == RUBY && game.prop[RUG] == RUG_HOVER))) {
 472             if (obj == RUBY)
 473                 rspeak(RUG_SETTLES);
 474             else if (TOTING(RUG))
 475                 rspeak(RUG_WIGGLES);
 476             else
 477                 rspeak(RUG_RISES);
 478             if (!TOTING(RUG) || obj == RUBY) {
 479                 int k = (game.prop[RUG] == RUG_HOVER) ? RUG_FLOOR : RUG_HOVER;
 480                 game.prop[RUG] = k;
 481                 if (k == RUG_HOVER)
 482                     k = objects[SAPPH].plac;
 483                 move(RUG + NOBJECTS, k);
 484             }
 485         }
 486         drop(obj, game.loc);
 487         return GO_CLEAROBJ;
 488     }
 489
 490     if (obj == COINS && HERE(VEND)) {
 491         DESTROY(COINS);
 492         drop(BATTERY, game.loc);
 493         pspeak(BATTERY, look, FRESH_BATTERIES, true);
 494         return GO_CLEAROBJ;
 495     }
 496
 497     if (LIQUID() == obj)
 498         obj = BOTTLE;
 499     if (obj == BOTTLE && LIQUID() != NO_OBJECT) {
 500         game.place[LIQUID()] = LOC_NOWHERE;
 501     }
 502
 503     if (obj == BEAR && AT(TROLL)) {
 504         state_change(TROLL, TROLL_GONE);
 505         move(TROLL, LOC_NOWHERE);
 506         move(TROLL + NOBJECTS, IS_FREE);
 507         move(TROLL2, objects[TROLL].plac);
 508         move(TROLL2 + NOBJECTS, objects[TROLL].fixd);
 509         juggle(CHASM);
 510         drop(obj, game.loc);
 511         return GO_CLEAROBJ;
 512     }
 513
 514     if (obj == VASE) {
 515         if (game.loc != objects[PILLOW].plac) {
 516             state_change(VASE, AT(PILLOW)
 517                          ? VASE_WHOLE
 518                          : VASE_DROPPED);
 519             if (game.prop[VASE] != VASE_WHOLE)
 520                 game.fixed[VASE] = IS_FIXED;
 521             drop(obj, game.loc);
 522             return GO_CLEAROBJ;
 523         }
 524     }
 525
 526     if (obj == CAGE && game.prop[BIRD] == BIRD_CAGED) {
 527         drop(BIRD, game.loc);
 528     }
 529
 530     if (obj == BIRD) {
 531         if (AT(DRAGON) && game.prop[DRAGON] == DRAGON_BARS) {
 532             rspeak(BIRD_BURNT);
 533             DESTROY(BIRD);
 534             return GO_CLEAROBJ;
 535         }
 536         if (HERE(SNAKE)) {
 537             rspeak(BIRD_ATTACKS);
 538             if (game.closed)
 539                 return GO_DWARFWAKE;
 540             DESTROY(SNAKE);
 541             /* Set game.prop for use by travel options */
 542             game.prop[SNAKE] = SNAKE_CHASED;
 543         } else
 544             rspeak(OK_MAN);
 545
 546         game.prop[BIRD] = FOREST(game.loc) ? BIRD_FOREST_UNCAGED : BIRD_UNCAGED;
 547         drop(obj, game.loc);
 548         return GO_CLEAROBJ;
 549     }
 550
 551     rspeak(OK_MAN);
 552     drop(obj, game.loc);
 553     return GO_CLEAROBJ;
 554 }
 555
 556 static int drink(verb_t verb, obj_t obj)
 557 /*  Drink.  If no object, assume water and look for it here.  If water is in
 558  *  the bottle, drink that, else must be at a water loc, so drink stream. */
 559 {
 560     if (obj == INTRANSITIVE && LIQLOC(game.loc) != WATER &&
 561         (LIQUID() != WATER || !HERE(BOTTLE))) {
 562         return GO_UNKNOWN;
 563     }
 564
 565     if (obj == BLOOD) {
 566         DESTROY(BLOOD);
 567         state_change(DRAGON, DRAGON_BLOODLESS);
 568         game.blooded = true;
 569         return GO_CLEAROBJ;
 570     }
 571
 572     if (obj != INTRANSITIVE && obj != WATER) {
 573         rspeak(RIDICULOUS_ATTEMPT);
 574         return GO_CLEAROBJ;
 575     }
 576     if (LIQUID() == WATER && HERE(BOTTLE)) {
 577         game.place[WATER] = LOC_NOWHERE;
 578         state_change(BOTTLE, EMPTY_BOTTLE);
 579         return GO_CLEAROBJ;
 580     }
 581
 582     speak(actions[verb].message);
 583     return GO_CLEAROBJ;
 584 }
 585
 586 static int eat(verb_t verb, obj_t obj)
 587 /*  Eat.  Intransitive: assume food if present, else ask what.  Transitive: food
 588  *  ok, some things lose appetite, rest are ridiculous. */
 589 {
 590     switch (obj) {
 591     case INTRANSITIVE:
 592         if (!HERE(FOOD))
 593             return GO_UNKNOWN;
 594     case FOOD:
 595         DESTROY(FOOD);
 596         rspeak(THANKS_DELICIOUS);
 597         break;
 598     case BIRD:
 599     case SNAKE:
 600     case CLAM:
 601     case OYSTER:
 602     case DWARF:
 603     case DRAGON:
 604     case TROLL:
 605     case BEAR:
 606     case OGRE:
 607         rspeak(LOST_APPETITE);
 608         break;
 609     default:
 610         speak(actions[verb].message);
 611     }
 612     return GO_CLEAROBJ;
 613 }
 614
 615 static int extinguish(verb_t verb, obj_t obj)
 616 /* Extinguish.  Lamp, urn, dragon/volcano (nice try). */
 617 {
 618     if (obj == INTRANSITIVE) {
 619         if (HERE(LAMP) && game.prop[LAMP] == LAMP_BRIGHT)
 620             obj = LAMP;
 621         if (HERE(URN) && game.prop[URN] == URN_LIT)
 622             obj = URN;
 623         if (obj == INTRANSITIVE)
 624             return GO_UNKNOWN;
 625     }
 626
 627     switch (obj) {
 628     case URN:
 629         if (game.prop[URN] != URN_EMPTY) {
 630             state_change(URN, URN_DARK);
 631         } else {
 632             pspeak(URN, change, URN_DARK, true);
 633         }
 634         break;
 635     case LAMP:
 636         state_change(LAMP, LAMP_DARK);
 637         rspeak(DARK(game.loc) ?
 638                PITCH_DARK :
 639                NO_MESSAGE);
 640         break;
 641     case DRAGON:
 642     case VOLCANO:
 643         rspeak(BEYOND_POWER);
 644         break;
 645     default:
 646         speak(actions[verb].message);
 647     }
 648     return GO_CLEAROBJ;
 649 }
 650
 651 static int feed(verb_t verb, obj_t obj)
 652 /*  Feed.  If bird, no seed.  Snake, dragon, troll: quip.  If dwarf, make him
 653  *  mad.  Bear, special. */
 654 {
 655     switch (obj) {
 656     case BIRD:
 657         rspeak(BIRD_PINING);
 658         break;
 659     case DRAGON:
 660         if (game.prop[DRAGON] != DRAGON_BARS)
 661             rspeak(RIDICULOUS_ATTEMPT);
 662         else
 663             rspeak(NOTHING_EDIBLE);
 664         break;
 665     case SNAKE:
 666         if (!game.closed && HERE(BIRD)) {
 667             DESTROY(BIRD);
 668             rspeak(BIRD_DEVOURED);
 669         } else
 670             rspeak(NOTHING_EDIBLE);
 671         break;
 672     case TROLL:
 673         rspeak(TROLL_VICES);
 674         break;
 675     case DWARF:
 676         if (HERE(FOOD)) {
 677             game.dflag += 2;
 678             rspeak(REALLY_MAD);
 679         } else
 680             speak(actions[verb].message);
 681         break;
 682     case BEAR:
 683         if (game.prop[BEAR] == BEAR_DEAD) {
 684             rspeak(RIDICULOUS_ATTEMPT);
 685             break;
 686         }
 687         if (game.prop[BEAR] == UNTAMED_BEAR) {
 688             if (HERE(FOOD)) {
 689                 DESTROY(FOOD);
 690                 game.fixed[AXE] = IS_FREE;
 691                 game.prop[AXE] = AXE_HERE;
 692                 state_change(BEAR, SITTING_BEAR);
 693             } else
 694                 rspeak(NOTHING_EDIBLE);
 695             break;
 696         }
 697         speak(actions[verb].message);
 698         break;
 699     case OGRE:
 700         if (HERE(FOOD))
 701             rspeak(OGRE_FULL);
 702         else
 703             speak(actions[verb].message);
 704         break;
 705     default:
 706         rspeak(AM_GAME);
 707     }
 708     return GO_CLEAROBJ;
 709 }
 710
 711 int fill(verb_t verb, obj_t obj)
 712 /*  Fill.  Bottle or urn must be empty, and liquid available.  (Vase
 713  *  is nasty.) */
 714 {
 715     if (obj == VASE) {
 716         if (LIQLOC(game.loc) == NO_OBJECT) {
 717             rspeak(FILL_INVALID);
 718             return GO_CLEAROBJ;
 719         }
 720         if (!TOTING(VASE)) {
 721             rspeak(ARENT_CARRYING);
 722             return GO_CLEAROBJ;
 723         }
 724         rspeak(SHATTER_VASE);
 725         game.prop[VASE] = VASE_BROKEN;
 726         game.fixed[VASE] = IS_FIXED;
 727         drop(VASE, game.loc);
 728         return GO_CLEAROBJ;
 729     }
 730
 731     if (obj == URN) {
 732         if (game.prop[URN] != URN_EMPTY) {
 733             rspeak(FULL_URN);
 734             return GO_CLEAROBJ;
 735         }
 736         if (!HERE(BOTTLE)) {
 737             rspeak(FILL_INVALID);
 738             return GO_CLEAROBJ;
 739         }
 740         int k = LIQUID();
 741         switch (k) {
 742         case WATER:
 743             game.prop[BOTTLE] = EMPTY_BOTTLE;
 744             rspeak(WATER_URN);
 745             break;
 746         case OIL:
 747             game.prop[URN] = URN_DARK;
 748             game.prop[BOTTLE] = EMPTY_BOTTLE;
 749             rspeak(OIL_URN);
 750             break;
 751         case NO_OBJECT:
 752         default:
 753             rspeak(FILL_INVALID);
 754             return GO_CLEAROBJ;
 755         }
 756         game.place[k] = LOC_NOWHERE;
 757         return GO_CLEAROBJ;
 758     }
 759     if (obj != INTRANSITIVE && obj != BOTTLE) {
 760         speak(actions[verb].message);
 761         return GO_CLEAROBJ;
 762     }
 763     if (obj == INTRANSITIVE && !HERE(BOTTLE))
 764         return GO_UNKNOWN;
 765
 766     if (HERE(URN) && game.prop[URN] != URN_EMPTY) {
 767         rspeak(URN_NOPOUR);
 768         return GO_CLEAROBJ;
 769     }
 770     if (LIQUID() != NO_OBJECT) {
 771         rspeak(BOTTLE_FULL);
 772         return GO_CLEAROBJ;
 773     }
 774     if (LIQLOC(game.loc) == NO_OBJECT) {
 775         rspeak(NO_LIQUID);
 776         return GO_CLEAROBJ;
 777     }
 778
 779     state_change(BOTTLE, (LIQLOC(game.loc) == OIL)
 780                  ? OIL_BOTTLE
 781                  : WATER_BOTTLE);
 782     if (TOTING(BOTTLE))
 783         game.place[LIQUID()] = CARRIED;
 784     return GO_CLEAROBJ;
 785 }
 786
 787 static int find(verb_t verb, obj_t obj)
 788 /* Find.  Might be carrying it, or it might be here.  Else give caveat. */
 789 {
 790     if (TOTING(obj)) {
 791         rspeak(ALREADY_CARRYING);
 792         return GO_CLEAROBJ;
 793     }
 794
 795     if (game.closed) {
 796         rspeak(NEEDED_NEARBY);
 797         return GO_CLEAROBJ;
 798     }
 799
 800     if (AT(obj) ||
 801         (LIQUID() == obj && AT(BOTTLE)) ||
 802         obj == LIQLOC(game.loc) ||
 803         (obj == DWARF && atdwrf(game.loc) > 0)) {
 804         rspeak(YOU_HAVEIT);
 805         return GO_CLEAROBJ;
 806     }
 807
 808
 809     speak(actions[verb].message);
 810     return GO_CLEAROBJ;
 811 }
 812
 813 static int fly(verb_t verb, obj_t obj)
 814 /* Fly.  Snide remarks unless hovering rug is here. */
 815 {
 816     if (obj == INTRANSITIVE) {
 817         if (!HERE(RUG)) {
 818             rspeak(FLAP_ARMS);
 819             return GO_CLEAROBJ;
 820         }
 821         if (game.prop[RUG] != RUG_HOVER) {
 822             rspeak(RUG_NOTHING2);
 823             return GO_CLEAROBJ;
 824         }
 825         obj = RUG;
 826     }
 827
 828     if (obj != RUG) {
 829         speak(actions[verb].message);
 830         return GO_CLEAROBJ;
 831     }
 832     if (game.prop[RUG] != RUG_HOVER) {
 833         rspeak(RUG_NOTHING1);
 834         return GO_CLEAROBJ;
 835     }
 836     game.oldlc2 = game.oldloc;
 837     game.oldloc = game.loc;
 838
 839     if (game.prop[SAPPH] == STATE_NOTFOUND) {
 840         game.newloc = game.place[SAPPH];
 841         rspeak(RUG_GOES);
 842     } else {
 843         game.newloc = LOC_CLIFF;
 844         rspeak(RUG_RETURNS);
 845     }
 846     return GO_TERMINATE;
 847 }
 848
 849 static int inven(void)
 850 /* Inventory. If object, treat same as find.  Else report on current burden. */
 851 {
 852     bool empty = true;
 853     for (obj_t i = 1; i <= NOBJECTS; i++) {
 854         if (i == BEAR ||
 855             !TOTING(i))
 856             continue;
 857         if (empty) {
 858             rspeak(NOW_HOLDING);
 859             empty = false;
 860         }
 861         pspeak(i, touch, -1, false);
 862     }
 863     if (TOTING(BEAR))
 864         rspeak(TAME_BEAR);
 865     if (empty)
 866         rspeak(NO_CARRY);
 867     return GO_CLEAROBJ;
 868 }
 869
 870 static int light(verb_t verb, obj_t obj)
 871 /*  Light.  Applicable only to lamp and urn. */
 872 {
 873     if (obj == INTRANSITIVE) {
 874         int selects = 0;
 875         if (HERE(LAMP) && game.prop[LAMP] == LAMP_DARK && game.limit >= 0) {
 876             obj = LAMP;
 877             selects++;
 878         }
 879         if (HERE(URN) && game.prop[URN] == URN_DARK) {
 880             obj =  URN;
 881             selects++;
 882         }
 883         if (selects != 1)
 884             return GO_UNKNOWN;
 885     }
 886
 887     switch (obj) {
 888     case URN:
 889         state_change(URN, game.prop[URN] == URN_EMPTY ?
 890                      URN_EMPTY :
 891                      URN_LIT);
 892         break;
 893     case LAMP:
 894         if (game.limit < 0) {
 895             rspeak(LAMP_OUT);
 896             break;
 897         }
 898         state_change(LAMP, LAMP_BRIGHT);
 899         if (game.wzdark)
 900             return GO_TOP;
 901         break;
 902     default:
 903         speak(actions[verb].message);
 904     }
 905     return GO_CLEAROBJ;
 906 }
 907
 908 static int listen(void)
 909 /*  Listen.  Intransitive only.  Print stuff based on object sound proprties. */
 910 {
 911     long sound = locations[game.loc].sound;
 912     if (sound != SILENT) {
 913         rspeak(sound);
 914         if (!locations[game.loc].loud)
 915             rspeak(NO_MESSAGE);
 916         return GO_CLEAROBJ;
 917     }
 918     for (obj_t i = 1; i <= NOBJECTS; i++) {
 919         if (!HERE(i) ||
 920             objects[i].sounds[0] == NULL ||
 921             game.prop[i] < 0)
 922             continue;
 923         int mi =  game.prop[i];
 924         /* (ESR) Some unpleasant magic on object states here. Ideally
 925          * we'd have liked the bird to be a normal object that we can
 926          * use state_change() on; can't do it, because there are
 927          * actually two different series of per-state birdsounds
 928          * depending on whether player has drunk dragon's blood. */
 929         if (i == BIRD)
 930             mi += 3 * game.blooded;
 931         long packed_zzword = token_to_packed(game.zzword);
 932         pspeak(i, hear, mi, true, packed_zzword);
 933         rspeak(NO_MESSAGE);
 934         if (i == BIRD && mi == BIRD_ENDSTATE)
 935             DESTROY(BIRD);
 936         return GO_CLEAROBJ;
 937     }
 938     rspeak(ALL_SILENT);
 939     return GO_CLEAROBJ;
 940 }
 941
 942 static int lock(verb_t verb, obj_t obj)
 943 /* Lock, unlock, no object given.  Assume various things if present. */
 944 {
 945     if (obj == INTRANSITIVE) {
 946         if (HERE(CLAM))
 947             obj = CLAM;
 948         if (HERE(OYSTER))
 949             obj = OYSTER;
 950         if (AT(DOOR))
 951             obj = DOOR;
 952         if (AT(GRATE))
 953             obj = GRATE;
 954         if (HERE(CHAIN))
 955             obj = CHAIN;
 956         if (obj == INTRANSITIVE) {
 957             rspeak(NOTHING_LOCKED);
 958             return GO_CLEAROBJ;
 959         }
 960     }
 961
 962     /*  Lock, unlock object.  Special stuff for opening clam/oyster
 963      *  and for chain. */
 964
 965     switch (obj) {
 966     case CHAIN:
 967         if (HERE(KEYS)) {
 968             return chain(verb);
 969         } else
 970             rspeak(NO_KEYS);
 971         break;
 972     case GRATE:
 973         if (HERE(KEYS)) {
 974             if (game.closng) {
 975                 rspeak(EXIT_CLOSED);
 976                 if (!game.panic)
 977                     game.clock2 = PANICTIME;
 978                 game.panic = true;
 979             } else {
 980                 state_change(GRATE, (verb == LOCK) ?
 981                              GRATE_CLOSED :
 982                              GRATE_OPEN);
 983             }
 984         } else
 985             rspeak(NO_KEYS);
 986         break;
 987     case CLAM:
 988         if (verb == LOCK)
 989             rspeak(HUH_MAN);
 990         else if (!TOTING(TRIDENT))
 991             rspeak(CLAM_OPENER);
 992         else {
 993             DESTROY(CLAM);
 994             drop(OYSTER, game.loc);
 995             drop(PEARL, LOC_CULDESAC);
 996             rspeak(PEARL_FALLS);
 997         }
 998         break;
 999     case OYSTER:
1000         if (verb == LOCK)
1001             rspeak(HUH_MAN);
1002         else if (TOTING(OYSTER))
1003             rspeak(DROP_OYSTER);
1004         else if (!TOTING(TRIDENT))
1005             rspeak(OYSTER_OPENER);
1006         else
1007             rspeak(OYSTER_OPENS);
1008         break;
1009     case DOOR:
1010         rspeak((game.prop[DOOR] == DOOR_UNRUSTED) ? OK_MAN : RUSTY_DOOR);
1011         break;
1012     case CAGE:
1013         rspeak( NO_LOCK);
1014         break;
1015     case KEYS:
1016         rspeak(CANNOT_UNLOCK);
1017         break;
1018     default:
1019         speak(actions[verb].message);
1020     }
1021
1022     return GO_CLEAROBJ;
1023 }
1024
1025 static int pour(verb_t verb, obj_t obj)
1026 /*  Pour.  If no object, or object is bottle, assume contents of bottle.
1027  *  special tests for pouring water or oil on plant or rusty door. */
1028 {
1029     if (obj == BOTTLE ||
1030         obj == INTRANSITIVE)
1031         obj = LIQUID();
1032     if (obj == NO_OBJECT)
1033         return GO_UNKNOWN;
1034     if (!TOTING(obj)) {
1035         speak(actions[verb].message);
1036         return GO_CLEAROBJ;
1037     }
1038
1039     if (obj != OIL && obj != WATER) {
1040         rspeak(CANT_POUR);
1041         return GO_CLEAROBJ;
1042     }
1043     if (HERE(URN) && game.prop[URN] == URN_EMPTY)
1044         return fill(verb, URN);
1045     game.prop[BOTTLE] = EMPTY_BOTTLE;
1046     game.place[obj] = LOC_NOWHERE;
1047     if (!(AT(PLANT) ||
1048           AT(DOOR))) {
1049         rspeak(GROUND_WET);
1050         return GO_CLEAROBJ;
1051     }
1052     if (!AT(DOOR)) {
1053         if (obj == WATER) {
1054             /* cycle through the three plant states */
1055             state_change(PLANT, MOD(game.prop[PLANT] + 1, 3));
1056             game.prop[PLANT2] = game.prop[PLANT];
1057             return GO_MOVE;
1058         } else {
1059             rspeak(SHAKING_LEAVES);
1060             return GO_CLEAROBJ;
1061         }
1062     } else {
1063         state_change(DOOR, (obj == OIL) ?
1064                      DOOR_UNRUSTED :
1065                      DOOR_RUSTED);
1066         return GO_CLEAROBJ;
1067     }
1068 }
1069
1070 static int quit(void)
1071 /*  Quit.  Intransitive only.  Verify intent and exit if that's what he wants. */
1072 {
1073     if (yes(arbitrary_messages[REALLY_QUIT], arbitrary_messages[OK_MAN], arbitrary_messages[OK_MAN]))
1074         terminate(quitgame);
1075     return GO_CLEAROBJ;
1076 }
1077
1078 static int read(struct command_t command)
1079 /*  Read.  Print stuff based on objtxt.  Oyster (?) is special case. */
1080 {
1081     if (command.obj == INTRANSITIVE) {
1082         command.obj = NO_OBJECT;
1083         for (int i = 1; i <= NOBJECTS; i++) {
1084             if (HERE(i) && objects[i].texts[0] != NULL && game.prop[i] >= 0)
1085                 command.obj = command.obj * NOBJECTS + i;
1086         }
1087         if (command.obj > NOBJECTS ||
1088             command.obj == NO_OBJECT ||
1089             DARK(game.loc))
1090             return GO_UNKNOWN;
1091     }
1092
1093     if (DARK(game.loc)) {
1094         sspeak(NO_SEE, command.raw1);
1095     } else if (command.obj == OYSTER && !game.clshnt && game.closed) {
1096         game.clshnt = yes(arbitrary_messages[CLUE_QUERY], arbitrary_messages[WAYOUT_CLUE], arbitrary_messages[OK_MAN]);
1097     } else if (objects[command.obj].texts[0] == NULL ||
1098                game.prop[command.obj] == STATE_NOTFOUND) {
1099         speak(actions[command.verb].message);
1100     } else
1101         pspeak(command.obj, study, game.prop[command.obj], true);
1102     return GO_CLEAROBJ;
1103 }
1104
1105 static int reservoir(void)
1106 /*  Z'ZZZ (word gets recomputed at startup; different each game). */
1107 {
1108     if (!AT(RESER) && game.loc != LOC_RESBOTTOM) {
1109         rspeak(NOTHING_HAPPENS);
1110         return GO_CLEAROBJ;
1111     } else {
1112         state_change(RESER,
1113                      game.prop[RESER] == WATERS_PARTED ? WATERS_UNPARTED : WATERS_PARTED);
1114         if (AT(RESER))
1115             return GO_CLEAROBJ;
1116         else {
1117             game.oldlc2 = game.loc;
1118             game.newloc = LOC_NOWHERE;
1119             rspeak(NOT_BRIGHT);
1120             return GO_TERMINATE;
1121         }
1122     }
1123 }
1124
1125 static int rub(verb_t verb, obj_t obj)
1126 /* Rub.  Yields various snide remarks except for lit urn. */
1127 {
1128     if (obj == URN && game.prop[URN] == URN_LIT) {
1129         DESTROY(URN);
1130         drop(AMBER, game.loc);
1131         game.prop[AMBER] = AMBER_IN_ROCK;
1132         --game.tally;
1133         drop(CAVITY, game.loc);
1134         rspeak(URN_GENIES);
1135     } else if (obj != LAMP) {
1136         rspeak(PECULIAR_NOTHING);
1137     } else {
1138         speak(actions[verb].message);
1139     }
1140     return GO_CLEAROBJ;
1141 }
1142
1143 static int say(struct command_t *command)
1144 /* Say.  Echo WD2 (or WD1 if no WD2 (SAY WHAT?, etc.).)  Magic words override. */
1145 {
1146     if (command->wd2 > 0) {
1147         command->wd1 = command->wd2;
1148         strncpy(command->raw1, command->raw2, LINESIZE - 1);
1149     }
1150     char word1[TOKLEN + 1];
1151     packed_to_token(command->wd1, word1);
1152     long wd;
1153     enum wordtype type;
1154     get_vocab_metadata(word1, &wd, &type);
1155     if (wd == XYZZY ||
1156         wd == PLUGH ||
1157         wd == PLOVER ||
1158         wd == FEE ||
1159         wd == FIE ||
1160         wd == FOE ||
1161         wd == FOO ||
1162         wd == FUM ||
1163         wd == PART) {
1164         /* FIXME: scribbles on the interpreter's command block */
1165         wordclear(&command->wd2);
1166         return GO_LOOKUP;
1167     }
1168     sspeak(OKEY_DOKEY, command->raw1);
1169     return GO_CLEAROBJ;
1170 }
1171
1172 static int throw_support(long spk)
1173 {
1174     rspeak(spk);
1175     drop(AXE, game.loc);
1176     return GO_MOVE;
1177 }
1178
1179 static int throw (struct command_t *command)
1180 /*  Throw.  Same as discard unless axe.  Then same as attack except
1181  *  ignore bird, and if dwarf is present then one might be killed.
1182  *  (Only way to do so!)  Axe also special for dragon, bear, and
1183  *  troll.  Treasures special for troll. */
1184 {
1185     if (!TOTING(command->obj)) {
1186         speak(actions[command->verb].message);
1187         return GO_CLEAROBJ;
1188     }
1189     if (objects[command->obj].is_treasure && AT(TROLL)) {
1190         /*  Snarf a treasure for the troll. */
1191         drop(command->obj, LOC_NOWHERE);
1192         move(TROLL, LOC_NOWHERE);
1193         move(TROLL + NOBJECTS, IS_FREE);
1194         drop(TROLL2, objects[TROLL].plac);
1195         drop(TROLL2 + NOBJECTS, objects[TROLL].fixd);
1196         juggle(CHASM);
1197         rspeak(TROLL_SATISFIED);
1198         return GO_CLEAROBJ;
1199     }
1200     if (command->obj == FOOD && HERE(BEAR)) {
1201         /* But throwing food is another story. */
1202         command->obj = BEAR;
1203         return (feed(command->verb, command->obj));
1204     }
1205     if (command->obj != AXE)
1206         return (discard(command->verb, command->obj));
1207     else {
1208         if (atdwrf(game.loc) <= 0) {
1209             if (AT(DRAGON) && game.prop[DRAGON] == DRAGON_BARS)
1210                 return throw_support(DRAGON_SCALES);
1211             if (AT(TROLL))
1212                 return throw_support(TROLL_RETURNS);
1213             if (AT(OGRE))
1214                 return throw_support(OGRE_DODGE);
1215             if (HERE(BEAR) && game.prop[BEAR] == UNTAMED_BEAR) {
1216                 /* This'll teach him to throw the axe at the bear! */
1217                 drop(AXE, game.loc);
1218                 game.fixed[AXE] = IS_FIXED;
1219                 juggle(BEAR);
1220                 state_change(AXE, AXE_LOST);
1221                 return GO_CLEAROBJ;
1222             }
1223             command->obj = INTRANSITIVE;
1224             return (attack(command));
1225         }
1226
1227         if (randrange(NDWARVES + 1) < game.dflag) {
1228             return throw_support(DWARF_DODGES);
1229         } else {
1230             long i = atdwrf(game.loc);
1231             game.dseen[i] = false;
1232             game.dloc[i] = LOC_NOWHERE;
1233             return throw_support((++game.dkill == 1) ?
1234                                  DWARF_SMOKE :
1235                                  KILLED_DWARF);
1236         }
1237     }
1238 }
1239
1240 static int wake(verb_t verb, obj_t obj)
1241 /* Wake.  Only use is to disturb the dwarves. */
1242 {
1243     if (obj != DWARF ||
1244         !game.closed) {
1245         speak(actions[verb].message);
1246         return GO_CLEAROBJ;
1247     } else {
1248         rspeak(PROD_DWARF);
1249         return GO_DWARFWAKE;
1250     }
1251 }
1252
1253 static int wave(verb_t verb, obj_t obj)
1254 /* Wave.  No effect unless waving rod at fissure or at bird. */
1255 {
1256     if (obj != ROD ||
1257         !TOTING(obj) ||
1258         (!HERE(BIRD) &&
1259          (game.closng ||
1260           !AT(FISSURE)))) {
1261         speak(((!TOTING(obj)) && (obj != ROD ||
1262                                   !TOTING(ROD2))) ?
1263               arbitrary_messages[ARENT_CARRYING] :
1264               actions[verb].message);
1265         return GO_CLEAROBJ;
1266     }
1267
1268     if (game.prop[BIRD] == BIRD_UNCAGED && game.loc == game.place[STEPS] && game.prop[JADE] == STATE_NOTFOUND) {
1269         drop(JADE, game.loc);
1270         game.prop[JADE] = STATE_FOUND;
1271         --game.tally;
1272         rspeak(NECKLACE_FLY);
1273         return GO_CLEAROBJ;
1274     } else {
1275         if (game.closed) {
1276             rspeak((game.prop[BIRD] == BIRD_CAGED) ?
1277                    CAGE_FLY :
1278                    FREE_FLY);
1279             return GO_DWARFWAKE;
1280         }
1281         if (game.closng ||
1282             !AT(FISSURE)) {
1283             rspeak((game.prop[BIRD] == BIRD_CAGED) ?
1284                    CAGE_FLY :
1285                    FREE_FLY);
1286             return GO_CLEAROBJ;
1287         }
1288         if (HERE(BIRD))
1289             rspeak((game.prop[BIRD] == BIRD_CAGED) ?
1290                    CAGE_FLY :
1291                    FREE_FLY);
1292
1293         state_change(FISSURE,
1294                      game.prop[FISSURE] == BRIDGED ? UNBRIDGED : BRIDGED);
1295         return GO_CLEAROBJ;
1296     }
1297 }
1298
1299 int action(struct command_t *command)
1300 /*  Analyse a verb.  Remember what it was, go back for object if second word
1301  *  unless verb is "say", which snarfs arbitrary second word.
1302  */
1303 {
1304     if (command->part == unknown) {
1305         /*  Analyse an object word.  See if the thing is here, whether
1306          *  we've got a verb yet, and so on.  Object must be here
1307          *  unless verb is "find" or "invent(ory)" (and no new verb
1308          *  yet to be analysed).  Water and oil are also funny, since
1309          *  they are never actually dropped at any location, but might
1310          *  be here inside the bottle or urn or as a feature of the
1311          *  location. */
1312         if (HERE(command->obj))
1313             /* FALL THROUGH */;
1314         else if (command->obj == GRATE) {
1315             if (game.loc == LOC_START ||
1316                 game.loc == LOC_VALLEY ||
1317                 game.loc == LOC_SLIT) {
1318                 command->obj = DEPRESSION;
1319             }
1320             if (game.loc == LOC_COBBLE ||
1321                 game.loc == LOC_DEBRIS ||
1322                 game.loc == LOC_AWKWARD ||
1323                 game.loc == LOC_BIRD ||
1324                 game.loc == LOC_PITTOP) {
1325                 command->obj = ENTRANCE;
1326             }
1327         } else if (command->obj == DWARF && atdwrf(game.loc) > 0)
1328             /* FALL THROUGH */;
1329         else if ((LIQUID() == command->obj && HERE(BOTTLE)) ||
1330                  command->obj == LIQLOC(game.loc))
1331             /* FALL THROUGH */;
1332         else if (command->obj == OIL && HERE(URN) && game.prop[URN] != URN_EMPTY) {
1333             command->obj = URN;
1334             /* FALL THROUGH */;
1335         } else if (command->obj == PLANT && AT(PLANT2) && game.prop[PLANT2] != PLANT_THIRSTY) {
1336             command->obj = PLANT2;
1337             /* FALL THROUGH */;
1338         } else if (command->obj == KNIFE && game.knfloc == game.loc) {
1339             game.knfloc = -1;
1340             rspeak(KNIVES_VANISH);
1341             return GO_CLEAROBJ;
1342         } else if (command->obj == ROD && HERE(ROD2)) {
1343             command->obj = ROD2;
1344             /* FALL THROUGH */;
1345         } else if ((command->verb == FIND ||
1346                     command->verb == INVENTORY) && (command->id2 == WORD_EMPTY || command->id2 == WORD_NOT_FOUND))
1347             /* FALL THROUGH */;
1348         else {
1349             sspeak(NO_SEE, command->raw1);
1350             return GO_CLEAROBJ;
1351         }
1352
1353         if (command->id2 != WORD_EMPTY && command->id2 != WORD_NOT_FOUND)
1354             return GO_WORD2;
1355         if (command->verb != 0)
1356             command->part = transitive;
1357     }
1358
1359     switch (command->part) {
1360     case intransitive:
1361         if (command->wd2 > 0 && command->verb != SAY)
1362             return GO_WORD2;
1363         if (command->verb == SAY)
1364             command->obj = command->wd2;
1365         if (command->obj == NO_OBJECT ||
1366             command->obj == INTRANSITIVE) {
1367             /*  Analyse an intransitive verb (ie, no object given yet). */
1368             switch (command->verb) {
1369             case CARRY:
1370                 return vcarry(command->verb, INTRANSITIVE);
1371             case  DROP:
1372                 return GO_UNKNOWN;
1373             case  SAY:
1374                 return GO_UNKNOWN;
1375             case  UNLOCK:
1376                 return lock(command->verb, INTRANSITIVE);
1377             case  NOTHING: {
1378                 rspeak(OK_MAN);
1379                 return (GO_CLEAROBJ);
1380             }
1381             case  LOCK:
1382                 return lock(command->verb, INTRANSITIVE);
1383             case  LIGHT:
1384                 return light(command->verb, INTRANSITIVE);
1385             case  EXTINGUISH:
1386                 return extinguish(command->verb, INTRANSITIVE);
1387             case  WAVE:
1388                 return GO_UNKNOWN;
1389             case  TAME:
1390                 return GO_UNKNOWN;
1391             case GO: {
1392                 speak(actions[command->verb].message);
1393                 return GO_CLEAROBJ;
1394             }
1395             case ATTACK:
1396                 command->obj = INTRANSITIVE;
1397                 return attack(command);
1398             case POUR:
1399                 return pour(command->verb, INTRANSITIVE);
1400             case EAT:
1401                 return eat(command->verb, INTRANSITIVE);
1402             case DRINK:
1403                 return drink(command->verb, INTRANSITIVE);
1404             case RUB:
1405                 return GO_UNKNOWN;
1406             case THROW:
1407                 return GO_UNKNOWN;
1408             case QUIT:
1409                 return quit();
1410             case FIND:
1411                 return GO_UNKNOWN;
1412             case INVENTORY:
1413                 return inven();
1414             case FEED:
1415                 return GO_UNKNOWN;
1416             case FILL:
1417                 return fill(command->verb, INTRANSITIVE);
1418             case BLAST:
1419                 blast();
1420                 return GO_CLEAROBJ;
1421             case SCORE:
1422                 score(scoregame);
1423                 return GO_CLEAROBJ;
1424             case FEE:
1425             case FIE:
1426             case FOE:
1427             case FOO:
1428             case FUM:
1429                 return bigwords(command->id1);
1430             case BRIEF:
1431                 return brief();
1432             case READ:
1433                 command->obj = INTRANSITIVE;
1434                 return read(*command);
1435             case BREAK:
1436                 return GO_UNKNOWN;
1437             case WAKE:
1438                 return GO_UNKNOWN;
1439             case SAVE:
1440                 return suspend();
1441             case RESUME:
1442                 return resume();
1443             case FLY:
1444                 return fly(command->verb, INTRANSITIVE);
1445             case LISTEN:
1446                 return listen();
1447             case PART:
1448                 return reservoir();
1449             default: // LCOV_EXCL_LINE
1450                 BUG(INTRANSITIVE_ACTION_VERB_EXCEEDS_GOTO_LIST); // LCOV_EXCL_LINE
1451             }
1452         }
1453     /* FALLTHRU */
1454     case transitive:
1455         /*  Analyse a transitive verb. */
1456         switch (command->verb) {
1457         case  CARRY:
1458             return vcarry(command->verb, command->obj);
1459         case  DROP:
1460             return discard(command->verb, command->obj);
1461         case  SAY:
1462             return say(command);
1463         case  UNLOCK:
1464             return lock(command->verb, command->obj);
1465         case  NOTHING: {
1466             rspeak(OK_MAN);
1467             return (GO_CLEAROBJ);
1468         }
1469         case  LOCK:
1470             return lock(command->verb, command->obj);
1471         case LIGHT:
1472             return light(command->verb, command->obj);
1473         case EXTINGUISH:
1474             return extinguish(command->verb, command->obj);
1475         case WAVE:
1476             return wave(command->verb, command->obj);
1477         case TAME: {
1478             speak(actions[command->verb].message);
1479             return GO_CLEAROBJ;
1480         }
1481         case GO: {
1482             speak(actions[command->verb].message);
1483             return GO_CLEAROBJ;
1484         }
1485         case ATTACK:
1486             return attack(command);
1487         case POUR:
1488             return pour(command->verb, command->obj);
1489         case EAT:
1490             return eat(command->verb, command->obj);
1491         case DRINK:
1492             return drink(command->verb, command->obj);
1493         case RUB:
1494             return rub(command->verb, command->obj);
1495         case THROW:
1496             return throw (command);
1497         case QUIT: {
1498             speak(actions[command->verb].message);
1499             return GO_CLEAROBJ;
1500         }
1501         case FIND:
1502             return find(command->verb, command->obj);
1503         case INVENTORY:
1504             return find(command->verb, command->obj);
1505         case FEED:
1506             return feed(command->verb, command->obj);
1507         case FILL:
1508             return fill(command->verb, command->obj);
1509         case BLAST:
1510             blast();
1511             return GO_CLEAROBJ;
1512         case SCORE: {
1513             speak(actions[command->verb].message);
1514             return GO_CLEAROBJ;
1515         }
1516         case FEE:
1517         case FIE:
1518         case FOE:
1519         case FOO:
1520         case FUM: {
1521             speak(actions[command->verb].message);
1522             return GO_CLEAROBJ;
1523         }
1524         case BRIEF: {
1525             speak(actions[command->verb].message);
1526             return GO_CLEAROBJ;
1527         }
1528         case READ:
1529             return read(*command);
1530         case BREAK:
1531             return vbreak(command->verb, command->obj);
1532         case WAKE:
1533             return wake(command->verb, command->obj);
1534         case SAVE: {
1535             speak(actions[command->verb].message);
1536             return GO_CLEAROBJ;
1537         }
1538         case RESUME: {
1539             speak(actions[command->verb].message);
1540             return GO_CLEAROBJ;
1541         }
1542         case FLY:
1543             return fly(command->verb, command->obj);
1544         case LISTEN: {
1545             speak(actions[command->verb].message);
1546             return GO_CLEAROBJ;
1547         }
1548         case PART:
1549             return reservoir();
1550         default: // LCOV_EXCL_LINE
1551             BUG(TRANSITIVE_ACTION_VERB_EXCEEDS_GOTO_LIST); // LCOV_EXCL_LINE
1552         }
1553     case unknown:
1554         /* Unknown verb, couldn't deduce object - might need hint */
1555         sspeak(WHAT_DO, command->raw1);
1556         return GO_CHECKHINT;
1557     default: // LCOV_EXCL_LINE
1558         BUG(SPEECHPART_NOT_TRANSITIVE_OR_INTRANSITIVE_OR_UNKNOWN); // LCOV_EXCL_LINE
1559     }
1560 }