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