actions.c

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