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     int spk;
 399     if (verb != LOCK) {
 400         spk = CHAIN_UNLOCKED;
 401         if (game.prop[BEAR] == UNTAMED_BEAR)
 402             spk = BEAR_BLOCKS;
 403         if (game.prop[CHAIN] == CHAIN_HEAP)
 404             spk = ALREADY_UNLOCKED;
 405         if (spk != CHAIN_UNLOCKED) {
 406             rspeak(spk);
 407             return GO_CLEAROBJ;
 408         }
 409         game.prop[CHAIN] = CHAIN_HEAP;
 410         game.fixed[CHAIN] = CHAIN_HEAP;
 411         if (game.prop[BEAR] != BEAR_DEAD)
 412             game.prop[BEAR] = CONTENTED_BEAR;
 413         /* FIXME: Arithmetic on state numbers */
 414         game.fixed[BEAR] = 2 - game.prop[BEAR];
 415     } else {
 416         spk = CHAIN_LOCKED;
 417         if (game.prop[CHAIN] != CHAIN_HEAP)
 418             spk = ALREADY_LOCKED;
 419         if (game.loc != objects[CHAIN].plac)
 420             spk = NO_LOCKSITE;
 421         if (spk != CHAIN_LOCKED) {
 422             rspeak(spk);
 423             return GO_CLEAROBJ;
 424         }
 425         game.prop[CHAIN] = CHAIN_FIXED;
 426         if (TOTING(CHAIN))
 427             drop(CHAIN, game.loc);
 428         game.fixed[CHAIN] = -1;
 429     }
 430     rspeak(spk);
 431     return GO_CLEAROBJ;
 432 }
 433
 434 static int discard(token_t verb, token_t obj, bool just_do_it)
 435 /*  Discard object.  "Throw" also comes here for most objects.  Special cases for
 436  *  bird (might attack snake or dragon) and cage (might contain bird) and vase.
 437  *  Drop coins at vending machine for extra batteries. */
 438 {
 439     int spk = actions[verb].message;
 440     if (!just_do_it) {
 441         if (TOTING(ROD2) && obj == ROD && !TOTING(ROD))
 442             obj = ROD2;
 443         if (!TOTING(obj)) {
 444             rspeak(spk);
 445             return GO_CLEAROBJ;
 446         }
 447         if (obj == BIRD && HERE(SNAKE)) {
 448             rspeak(BIRD_ATTACKS);
 449             if (game.closed)
 450                 return GO_DWARFWAKE;
 451             DESTROY(SNAKE);
 452             /* Set game.prop for use by travel options */
 453             game.prop[SNAKE] = SNAKE_CHASED;
 454
 455         } else if ((GSTONE(obj) && AT(CAVITY) && game.prop[CAVITY] != CAVITY_FULL)) {
 456             rspeak(GEM_FITS);
 457             game.prop[obj] = 1;
 458             game.prop[CAVITY] = CAVITY_FULL;
 459             if (HERE(RUG) && ((obj == EMERALD && game.prop[RUG] != RUG_HOVER) ||
 460                               (obj == RUBY && game.prop[RUG] == RUG_HOVER))) {
 461                 spk = RUG_RISES;
 462                 if (TOTING(RUG))
 463                     spk = RUG_WIGGLES;
 464                 if (obj == RUBY)
 465                     spk = RUG_SETTLES;
 466                 rspeak(spk);
 467                 if (spk != RUG_WIGGLES) {
 468                     /* FIXME: Arithmetic on state numbers */
 469                     int k = 2 - game.prop[RUG];
 470                     game.prop[RUG] = k;
 471                     if (k == 2)
 472                         k = objects[SAPPH].plac;
 473                     move(RUG + NOBJECTS, k);
 474                 }
 475             }
 476         } else if (obj == COINS && HERE(VEND)) {
 477             DESTROY(COINS);
 478             drop(BATTERY, game.loc);
 479             pspeak(BATTERY, look, FRESH_BATTERIES, true);
 480             return GO_CLEAROBJ;
 481         } else if (obj == BIRD && AT(DRAGON) && game.prop[DRAGON] == DRAGON_BARS) {
 482             rspeak(BIRD_BURNT);
 483             DESTROY(BIRD);
 484             return GO_CLEAROBJ;
 485         } else if (obj == BEAR && AT(TROLL)) {
 486             state_change(TROLL, TROLL_GONE);
 487             move(TROLL, LOC_NOWHERE);
 488             move(TROLL + NOBJECTS, LOC_NOWHERE);
 489             move(TROLL2, objects[TROLL].plac);
 490             move(TROLL2 + NOBJECTS, objects[TROLL].fixd);
 491             juggle(CHASM);
 492         } else if (obj != VASE ||
 493                    game.loc == objects[PILLOW].plac) {
 494             rspeak(OK_MAN);
 495         } else {
 496             game.prop[VASE] = VASE_BROKEN;
 497             if (AT(PILLOW))
 498                 game.prop[VASE] = VASE_WHOLE;
 499             pspeak(VASE, look, game.prop[VASE] + 1, true);
 500             if (game.prop[VASE] != VASE_WHOLE)
 501                 game.fixed[VASE] = -1;
 502         }
 503     }
 504     int k = LIQUID();
 505     if (k == obj)
 506         obj = BOTTLE;
 507     if (obj == BOTTLE && k != 0)
 508         game.place[k] = LOC_NOWHERE;
 509     if (obj == CAGE && game.prop[BIRD] == BIRD_CAGED)
 510         drop(BIRD, game.loc);
 511     drop(obj, game.loc);
 512     if (obj != BIRD)
 513         return GO_CLEAROBJ;
 514     game.prop[BIRD] = BIRD_UNCAGED;
 515     if (FOREST(game.loc))
 516         game.prop[BIRD] = BIRD_FOREST_UNCAGED;
 517     return GO_CLEAROBJ;
 518 }
 519
 520 static int drink(token_t verb, token_t obj)
 521 /*  Drink.  If no object, assume water and look for it here.  If water is in
 522  *  the bottle, drink that, else must be at a water loc, so drink stream. */
 523 {
 524     if (obj == NO_OBJECT && LIQLOC(game.loc) != WATER && (LIQUID() != WATER ||
 525             !HERE(BOTTLE)))
 526         return GO_UNKNOWN;
 527     if (obj != BLOOD) {
 528         if (obj != NO_OBJECT && obj != WATER) {
 529             rspeak(RIDICULOUS_ATTEMPT);
 530         } else if (LIQUID() == WATER && HERE(BOTTLE)) {
 531             game.prop[BOTTLE] = EMPTY_BOTTLE;
 532             game.place[WATER] = LOC_NOWHERE;
 533             rspeak(BOTTLE_EMPTY);
 534         } else {
 535             rspeak(actions[verb].message);
 536         }
 537     } else {
 538         DESTROY(BLOOD);
 539         state_change(DRAGON, DRAGON_BLOODLESS);
 540         game.blooded = true;
 541     }
 542     return GO_CLEAROBJ;
 543 }
 544
 545 static int eat(token_t verb, token_t obj)
 546 /*  Eat.  Intransitive: assume food if present, else ask what.  Transitive: food
 547  *  ok, some things lose appetite, rest are ridiculous. */
 548 {
 549     if (obj == INTRANSITIVE) {
 550         if (!HERE(FOOD))
 551             return GO_UNKNOWN;
 552         DESTROY(FOOD);
 553         rspeak(THANKS_DELICIOUS);
 554         return GO_CLEAROBJ;
 555     }
 556     if (obj == FOOD) {
 557         DESTROY(FOOD);
 558         rspeak(THANKS_DELICIOUS);
 559         return GO_CLEAROBJ;
 560     }
 561     if (obj == BIRD ||
 562         obj == SNAKE ||
 563         obj == CLAM ||
 564         obj == OYSTER ||
 565         obj == DWARF ||
 566         obj == DRAGON ||
 567         obj == TROLL ||
 568         obj == BEAR ||
 569         obj == OGRE) {
 570         rspeak(LOST_APPETITE);
 571         return GO_CLEAROBJ;
 572     }
 573     rspeak(actions[verb].message);
 574     return GO_CLEAROBJ;
 575 }
 576
 577 static int extinguish(token_t verb, int obj)
 578 /* Extinguish.  Lamp, urn, dragon/volcano (nice try). */
 579 {
 580     if (obj == INTRANSITIVE) {
 581         if (HERE(LAMP) && game.prop[LAMP] == LAMP_BRIGHT)
 582             obj = LAMP;
 583         if (HERE(URN) && game.prop[URN] == URN_LIT)
 584             obj = URN;
 585         if (obj == INTRANSITIVE ||
 586             (HERE(LAMP) && game.prop[LAMP] == LAMP_BRIGHT &&
 587              HERE(URN) && game.prop[URN] == URN_LIT))
 588             return GO_UNKNOWN;
 589     }
 590
 591     if (obj == URN) {
 592         if (game.prop[URN] != URN_EMPTY) {
 593             state_change(URN, URN_DARK);
 594         } else {
 595             pspeak(URN, change, URN_DARK, true);
 596         }
 597
 598     } else if (obj == LAMP) {
 599         state_change(LAMP, LAMP_DARK);
 600         rspeak(DARK(game.loc) ?
 601                PITCH_DARK :
 602                NO_MESSAGE);
 603
 604     } else if (obj == DRAGON ||
 605                obj == VOLCANO) {
 606         rspeak(BEYOND_POWER);
 607
 608     } else {
 609         rspeak(actions[verb].message);
 610     }
 611     return GO_CLEAROBJ;
 612 }
 613
 614 static int feed(token_t verb, token_t obj)
 615 /*  Feed.  If bird, no seed.  Snake, dragon, troll: quip.  If dwarf, make him
 616  *  mad.  Bear, special. */
 617 {
 618     int spk = actions[verb].message;
 619     if (obj == BIRD) {
 620         rspeak(BIRD_PINING);
 621         return GO_CLEAROBJ;
 622     } else if (obj == SNAKE ||
 623                obj == DRAGON ||
 624                obj == TROLL) {
 625         spk = NOTHING_EDIBLE;
 626         if (obj == DRAGON && game.prop[DRAGON] != DRAGON_BARS)
 627             spk = RIDICULOUS_ATTEMPT;
 628         if (obj == TROLL)
 629             spk = TROLL_VICES;
 630         if (obj == SNAKE && !game.closed && HERE(BIRD)) {
 631             DESTROY(BIRD);
 632             spk = BIRD_DEVOURED;
 633         }
 634     } else if (obj == DWARF) {
 635         if (HERE(FOOD)) {
 636             game.dflag += 2;
 637             spk = REALLY_MAD;
 638         }
 639     } else if (obj == BEAR) {
 640         if (game.prop[BEAR] == UNTAMED_BEAR)
 641             spk = NOTHING_EDIBLE;
 642         if (game.prop[BEAR] == BEAR_DEAD)
 643             spk = RIDICULOUS_ATTEMPT;
 644         if (HERE(FOOD)) {
 645             DESTROY(FOOD);
 646             game.prop[BEAR] = SITTING_BEAR;
 647             game.fixed[AXE] = 0;
 648             game.prop[AXE] = 0;
 649             spk = BEAR_TAMED;
 650         }
 651     } else if (obj == OGRE) {
 652         if (HERE(FOOD))
 653             spk = OGRE_FULL;
 654     } else {
 655         spk = AM_GAME;
 656     }
 657     rspeak(spk);
 658     return GO_CLEAROBJ;
 659 }
 660
 661 int fill(token_t verb, token_t obj)
 662 /*  Fill.  Bottle or urn must be empty, and liquid available.  (Vase
 663  *  is nasty.) */
 664 {
 665     if (obj == VASE) {
 666         if (LIQLOC(game.loc) == NO_OBJECT) {
 667             rspeak(FILL_INVALID);
 668             return GO_CLEAROBJ;
 669         }
 670         if (!TOTING(VASE)) {
 671             rspeak(ARENT_CARRYING);
 672             return GO_CLEAROBJ;
 673         }
 674         rspeak(SHATTER_VASE);
 675         game.prop[VASE] = VASE_BROKEN;
 676         game.fixed[VASE] = -1;
 677         return (discard(verb, obj, true));
 678     }
 679
 680     if (obj == URN) {
 681         if (game.prop[URN] != URN_EMPTY) {
 682             rspeak(FULL_URN);
 683             return GO_CLEAROBJ;
 684         }
 685         if (!HERE(BOTTLE)) {
 686             rspeak(FILL_INVALID);
 687             return GO_CLEAROBJ;
 688         }
 689         int k = LIQUID();
 690         switch (k) {
 691         case WATER:
 692             game.prop[BOTTLE] = EMPTY_BOTTLE;
 693             rspeak(WATER_URN);
 694             break;
 695         case OIL:
 696             game.prop[URN] = URN_DARK;
 697             game.prop[BOTTLE] = EMPTY_BOTTLE;
 698             rspeak(OIL_URN);
 699             break;
 700         case NO_OBJECT:
 701         default:
 702             rspeak(FILL_INVALID);
 703             return GO_CLEAROBJ;
 704         }
 705         game.place[k] = LOC_NOWHERE;
 706         return GO_CLEAROBJ;
 707     } else if (obj != NO_OBJECT && obj != BOTTLE) {
 708         rspeak(actions[verb].message);
 709         return GO_CLEAROBJ;
 710     } else if (obj == NO_OBJECT && !HERE(BOTTLE))
 711         return GO_UNKNOWN;
 712     int spk = BOTTLED_WATER;
 713     if (LIQLOC(game.loc) == 0)
 714         spk = NO_LIQUID;
 715     if (HERE(URN) && game.prop[URN] != URN_EMPTY)
 716         spk = URN_NOPOUR;
 717     if (LIQUID() != 0)
 718         spk = BOTTLE_FULL;
 719     if (spk == BOTTLED_WATER) {
 720         /* FIXME: Arithmetic on property values */
 721         game.prop[BOTTLE] = MOD(conditions[game.loc], 4) / 2 * 2;
 722         if (TOTING(BOTTLE))
 723             game.place[LIQUID()] = CARRIED;
 724         if (LIQUID() == OIL)
 725             spk = BOTTLED_OIL;
 726     }
 727     rspeak(spk);
 728     return GO_CLEAROBJ;
 729 }
 730
 731 static int find(token_t verb, token_t obj)
 732 /* Find.  Might be carrying it, or it might be here.  Else give caveat. */
 733 {
 734     if (TOTING(obj)) {
 735         rspeak(ALREADY_CARRYING);
 736         return GO_CLEAROBJ;
 737     }
 738
 739     if (game.closed) {
 740         rspeak(NEEDED_NEARBY);
 741         return GO_CLEAROBJ;
 742     }
 743
 744     if (AT(obj) ||
 745         (LIQUID() == obj && AT(BOTTLE)) ||
 746         obj == LIQLOC(game.loc) ||
 747         (obj == DWARF && atdwrf(game.loc) > 0)) {
 748         rspeak(YOU_HAVEIT);
 749         return GO_CLEAROBJ;
 750     }
 751
 752
 753     rspeak(actions[verb].message);
 754     return GO_CLEAROBJ;
 755 }
 756
 757 static int fly(token_t verb, token_t obj)
 758 /* Fly.  Snide remarks unless hovering rug is here. */
 759 {
 760     if (obj == INTRANSITIVE) {
 761         if (!HERE(RUG)) {
 762             rspeak(FLAP_ARMS);
 763             return GO_CLEAROBJ;
 764         }
 765         if (game.prop[RUG] != RUG_HOVER) {
 766             rspeak(RUG_NOTHING2);
 767             return GO_CLEAROBJ;
 768         }
 769         obj = RUG;
 770     }
 771
 772     if (obj != RUG) {
 773         rspeak(actions[verb].message);
 774         return GO_CLEAROBJ;
 775     }
 776     if (game.prop[RUG] != RUG_HOVER) {
 777         rspeak(RUG_NOTHING1);
 778         return GO_CLEAROBJ;
 779     }
 780     game.oldlc2 = game.oldloc;
 781     game.oldloc = game.loc;
 782     /* FIXME: Arithmetic on location values */
 783     game.newloc = game.place[RUG] + game.fixed[RUG] - game.loc;
 784
 785     if (game.prop[SAPPH] >= 0) {
 786         rspeak(RUG_RETURNS);
 787     } else {
 788         rspeak(RUG_GOES);
 789     }
 790     return GO_TERMINATE;
 791 }
 792
 793 static int inven(void)
 794 /* Inventory. If object, treat same as find.  Else report on current burden. */
 795 {
 796     bool empty = true;
 797     for (int i = 1; i <= NOBJECTS; i++) {
 798         if (i == BEAR ||
 799             !TOTING(i))
 800             continue;
 801         if (empty) {
 802             rspeak(NOW_HOLDING);
 803             empty = false;
 804         }
 805         pspeak(i, touch, -1, false);
 806     }
 807     if (TOTING(BEAR))
 808         rspeak(TAME_BEAR);
 809     if (empty)
 810         rspeak(NO_CARRY);
 811     return GO_CLEAROBJ;
 812 }
 813
 814 static int light(token_t verb, token_t obj)
 815 /*  Light.  Applicable only to lamp and urn. */
 816 {
 817     if (obj == INTRANSITIVE) {
 818         if (HERE(LAMP) && game.prop[LAMP] == LAMP_DARK && game.limit >= 0)
 819             obj = LAMP;
 820         if (HERE(URN) && game.prop[URN] == URN_DARK)
 821             obj =  URN;
 822         if (obj == INTRANSITIVE ||
 823             (HERE(LAMP) && game.prop[LAMP] == LAMP_DARK && game.limit >= 0 &&
 824              HERE(URN) && game.prop[URN] == URN_DARK))
 825             return GO_UNKNOWN;
 826     }
 827
 828     if (obj == URN) {
 829         state_change(URN, game.prop[URN] == URN_EMPTY ?
 830                      URN_EMPTY :
 831                      URN_LIT);
 832         return GO_CLEAROBJ;
 833     } else {
 834         if (obj != LAMP) {
 835             rspeak(actions[verb].message);
 836             return GO_CLEAROBJ;
 837         }
 838         if (game.limit < 0) {
 839             rspeak(LAMP_OUT);
 840             return GO_CLEAROBJ;
 841         }
 842         state_change(LAMP, LAMP_BRIGHT);
 843         if (game.wzdark)
 844             return GO_TOP;
 845         else
 846             return GO_CLEAROBJ;
 847     }
 848 }
 849
 850 static int listen(void)
 851 /*  Listen.  Intransitive only.  Print stuff based on objsnd/locsnd. */
 852 {
 853     long sound = locations[game.loc].sound;
 854     if (sound != SILENT) {
 855         rspeak(sound);
 856         if (!locations[game.loc].loud)
 857             rspeak(NO_MESSAGE);
 858         return GO_CLEAROBJ;
 859     }
 860     for (int i = 1; i <= NOBJECTS; i++) {
 861         if (!HERE(i) ||
 862             objects[i].sounds[0] == NULL ||
 863             game.prop[i] < 0)
 864             continue;
 865         int mi =  game.prop[i];
 866         if (i == BIRD)
 867             mi += 3 * game.blooded;
 868         long packed_zzword = token_to_packed(game.zzword);
 869         pspeak(i, hear, mi, true, packed_zzword);
 870         rspeak(NO_MESSAGE);
 871         /* FIXME: Magic number, sensitive to bird state logic */
 872         if (i == BIRD && game.prop[i] == 5)
 873             DESTROY(BIRD);
 874         return GO_CLEAROBJ;
 875     }
 876     rspeak(ALL_SILENT);
 877     return GO_CLEAROBJ;
 878 }
 879
 880 static int lock(token_t verb, token_t obj)
 881 /* Lock, unlock, no object given.  Assume various things if present. */
 882 {
 883     if (obj == INTRANSITIVE) {
 884         if (HERE(CLAM))
 885             obj = CLAM;
 886         if (HERE(OYSTER))
 887             obj = OYSTER;
 888         if (AT(DOOR))
 889             obj = DOOR;
 890         if (AT(GRATE))
 891             obj = GRATE;
 892         if (HERE(CHAIN))
 893             obj = CHAIN;
 894         if (obj == INTRANSITIVE) {
 895             rspeak(NOTHING_LOCKED);
 896             return GO_CLEAROBJ;
 897         }
 898     }
 899
 900     /*  Lock, unlock object.  Special stuff for opening clam/oyster
 901      *  and for chain. */
 902     if (obj == GRATE ||
 903         obj == CHAIN) {
 904         if (HERE(KEYS)) {
 905             if (obj == CHAIN)
 906                 return chain(verb);
 907             if (game.closng) {
 908                 rspeak(EXIT_CLOSED);
 909                 if (!game.panic)
 910                     game.clock2 = PANICTIME;
 911                 game.panic = true;
 912                 return GO_CLEAROBJ ;
 913             } else {
 914                 state_change(GRATE, (verb == LOCK) ?
 915                              GRATE_CLOSED :
 916                              GRATE_OPEN);
 917                 return GO_CLEAROBJ;
 918             }
 919         }
 920         rspeak(NO_KEYS);
 921         return GO_CLEAROBJ;
 922     }
 923
 924     switch (obj) {
 925     case CLAM:
 926     case OYSTER:
 927         return bivalve(verb, obj);
 928     case DOOR:
 929         rspeak((game.prop[DOOR] == DOOR_UNRUSTED) ? OK_MAN : RUSTY_DOOR);
 930         break;
 931     case CAGE:
 932         rspeak( NO_LOCK);
 933         break;
 934     case KEYS:
 935         rspeak(CANNOT_UNLOCK);
 936         break;
 937     default:
 938         rspeak(actions[verb].message);
 939     }
 940
 941     return GO_CLEAROBJ;
 942 }
 943
 944 static int pour(token_t verb, token_t obj)
 945 /*  Pour.  If no object, or object is bottle, assume contents of bottle.
 946  *  special tests for pouring water or oil on plant or rusty door. */
 947 {
 948     if (obj == BOTTLE ||
 949         obj == NO_OBJECT)
 950         obj = LIQUID();
 951     if (obj == NO_OBJECT)
 952         return GO_UNKNOWN;
 953     if (!TOTING(obj)) {
 954         rspeak(actions[verb].message);
 955         return GO_CLEAROBJ;
 956     }
 957
 958     if (obj != OIL && obj != WATER) {
 959         rspeak(CANT_POUR);
 960         return GO_CLEAROBJ;
 961     }
 962     if (HERE(URN) && game.prop[URN] == URN_EMPTY)
 963         return fill(verb, URN);
 964     game.prop[BOTTLE] = EMPTY_BOTTLE;
 965     game.place[obj] = LOC_NOWHERE;
 966     if (!(AT(PLANT) ||
 967           AT(DOOR))) {
 968         rspeak(GROUND_WET);
 969         return GO_CLEAROBJ;
 970     }
 971     if (!AT(DOOR)) {
 972         if (obj == WATER) {
 973             /* cycle through the three plant states */
 974             state_change(PLANT, MOD(game.prop[PLANT] + 1, 3));
 975             game.prop[PLANT2] = game.prop[PLANT];
 976             return GO_MOVE;
 977         } else {
 978             rspeak(SHAKING_LEAVES);
 979             return GO_CLEAROBJ;
 980         }
 981     } else {
 982         state_change(DOOR, (obj == OIL) ?
 983                      DOOR_UNRUSTED :
 984                      DOOR_RUSTED);
 985         return GO_CLEAROBJ;
 986     }
 987 }
 988
 989 static int quit(void)
 990 /*  Quit.  Intransitive only.  Verify intent and exit if that's what he wants. */
 991 {
 992     if (yes(arbitrary_messages[REALLY_QUIT], arbitrary_messages[OK_MAN], arbitrary_messages[OK_MAN]))
 993         terminate(quitgame);
 994     return GO_CLEAROBJ;
 995 }
 996
 997 static int read(struct command_t command)
 998 /*  Read.  Print stuff based on objtxt.  Oyster (?) is special case. */
 999 {
1000     if (command.obj == INTRANSITIVE) {
1001         command.obj = 0;
1002         for (int i = 1; i <= NOBJECTS; i++) {
1003             if (HERE(i) && objects[i].texts[0] != NULL && game.prop[i] >= 0)
1004                 command.obj = command.obj * NOBJECTS + i;
1005         }
1006         if (command.obj > NOBJECTS ||
1007             command.obj == 0 ||
1008             DARK(game.loc))
1009             return GO_UNKNOWN;
1010     }
1011
1012     if (DARK(game.loc)) {
1013         sspeak(NO_SEE, command.raw1);
1014     } else if (command.obj == OYSTER && !game.clshnt && game.closed) {
1015         game.clshnt = yes(arbitrary_messages[CLUE_QUERY], arbitrary_messages[WAYOUT_CLUE], arbitrary_messages[OK_MAN]);
1016     } else if (objects[command.obj].texts[0] == NULL ||
1017                game.prop[command.obj] < 0) {
1018         rspeak(actions[command.verb].message);
1019     } else
1020         pspeak(command.obj, study, game.prop[command.obj], true);
1021     return GO_CLEAROBJ;
1022 }
1023
1024 static int reservoir(void)
1025 /*  Z'ZZZ (word gets recomputed at startup; different each game). */
1026 {
1027     /* FIXME: Arithmetic on state numbers */
1028     if (!AT(RESER) && game.loc != game.fixed[RESER] - 1) {
1029         rspeak(NOTHING_HAPPENS);
1030         return GO_CLEAROBJ;
1031     } else {
1032         /* FIXME: Arithmetic on state numbers */
1033         pspeak(RESER, look, game.prop[RESER] + 1, true);
1034         game.prop[RESER] = 1 - game.prop[RESER];
1035         if (AT(RESER))
1036             return GO_CLEAROBJ;
1037         else {
1038             game.oldlc2 = game.loc;
1039             game.newloc = LOC_NOWHERE;
1040             rspeak(NOT_BRIGHT);
1041             return GO_TERMINATE;
1042         }
1043     }
1044 }
1045
1046 static int rub(token_t verb, token_t obj)
1047 /* Rub.  Yields various snide remarks except for lit urn. */
1048 {
1049     if (obj == URN && game.prop[URN] == URN_LIT) {
1050         DESTROY(URN);
1051         drop(AMBER, game.loc);
1052         game.prop[AMBER] = AMBER_IN_ROCK;
1053         --game.tally;
1054         drop(CAVITY, game.loc);
1055         rspeak(URN_GENIES);
1056     } else if (obj != LAMP) {
1057         rspeak(PECULIAR_NOTHING);
1058     } else {
1059         rspeak(actions[verb].message);
1060     }
1061     return GO_CLEAROBJ;
1062 }
1063
1064 static int say(struct command_t *command)
1065 /* Say.  Echo WD2 (or WD1 if no WD2 (SAY WHAT?, etc.).)  Magic words override. */
1066 {
1067     if (command->wd2 > 0) {
1068         command->wd1 = command->wd2;
1069         strcpy(command->raw1, command->raw2);
1070     }
1071     char word1[TOKLEN + 1];
1072     packed_to_token(command->wd1, word1);
1073     int wd = (int) get_vocab_id(word1);
1074     /* FIXME: magic numbers */
1075     if (wd == MOTION_WORD(XYZZY) ||
1076         wd == MOTION_WORD(PLUGH) ||
1077         wd == MOTION_WORD(PLOVER) ||
1078         wd == ACTION_WORD(GIANTWORDS) ||
1079         wd == ACTION_WORD(PART)) {
1080         /* FIXME: scribbles on the interpreter's command block */
1081         wordclear(&command->wd2);
1082         return GO_LOOKUP;
1083     }
1084     sspeak(OKEY_DOKEY, command->raw1);
1085     return GO_CLEAROBJ;
1086 }
1087
1088 static int throw_support(long spk)
1089 {
1090     rspeak(spk);
1091     drop(AXE, game.loc);
1092     return GO_MOVE;
1093 }
1094
1095 static int throw (struct command_t *command)
1096 /*  Throw.  Same as discard unless axe.  Then same as attack except
1097  *  ignore bird, and if dwarf is present then one might be killed.
1098  *  (Only way to do so!)  Axe also special for dragon, bear, and
1099  *  troll.  Treasures special for troll. */
1100 {
1101     if (TOTING(ROD2) && command->obj == ROD && !TOTING(ROD))
1102         command->obj = ROD2;
1103     if (!TOTING(command->obj)) {
1104         rspeak(actions[command->verb].message);
1105         return GO_CLEAROBJ;
1106     }
1107     if (objects[command->obj].is_treasure && AT(TROLL)) {
1108         /*  Snarf a treasure for the troll. */
1109         drop(command->obj, LOC_NOWHERE);
1110         move(TROLL, LOC_NOWHERE);
1111         move(TROLL + NOBJECTS, LOC_NOWHERE);
1112         drop(TROLL2, objects[TROLL].plac);
1113         drop(TROLL2 + NOBJECTS, objects[TROLL].fixd);
1114         juggle(CHASM);
1115         rspeak(TROLL_SATISFIED);
1116         return GO_CLEAROBJ;
1117     }
1118     if (command->obj == FOOD && HERE(BEAR)) {
1119         /* But throwing food is another story. */
1120         command->obj = BEAR;
1121         return (feed(command->verb, command->obj));
1122     }
1123     if (command->obj != AXE)
1124         return (discard(command->verb, command->obj, false));
1125     else {
1126         if (atdwrf(game.loc) <= 0) {
1127             if (AT(DRAGON) && game.prop[DRAGON] == DRAGON_BARS)
1128                 return throw_support(DRAGON_SCALES);
1129             if (AT(TROLL))
1130                 return throw_support(TROLL_RETURNS);
1131             else if (AT(OGRE))
1132                 return throw_support(OGRE_DODGE);
1133             else if (HERE(BEAR) && game.prop[BEAR] == UNTAMED_BEAR) {
1134                 /* This'll teach him to throw the axe at the bear! */
1135                 drop(AXE, game.loc);
1136                 game.fixed[AXE] = -1;
1137                 juggle(BEAR);
1138                 state_change(AXE, AXE_LOST);
1139                 return GO_CLEAROBJ;
1140             }
1141             command->obj = NO_OBJECT;
1142             return (attack(command));
1143         }
1144
1145         if (randrange(NDWARVES + 1) < game.dflag) {
1146             return throw_support(DWARF_DODGES);
1147         } else {
1148             long i = atdwrf(game.loc);
1149             game.dseen[i] = false;
1150             game.dloc[i] = LOC_NOWHERE;
1151             return throw_support((++game.dkill == 1) ?
1152                                  DWARF_SMOKE :
1153                                  KILLED_DWARF);
1154         }
1155     }
1156 }
1157
1158 static int wake(token_t verb, token_t obj)
1159 /* Wake.  Only use is to disturb the dwarves. */
1160 {
1161     if (obj != DWARF ||
1162         !game.closed) {
1163         rspeak(actions[verb].message);
1164         return GO_CLEAROBJ;
1165     } else {
1166         rspeak(PROD_DWARF);
1167         return GO_DWARFWAKE;
1168     }
1169 }
1170
1171 static int wave(token_t verb, token_t obj)
1172 /* Wave.  No effect unless waving rod at fissure or at bird. */
1173 {
1174     if (obj != ROD ||
1175         !TOTING(obj) ||
1176         (!HERE(BIRD) &&
1177          (game.closng ||
1178           !AT(FISSURE)))) {
1179         rspeak(((!TOTING(obj)) && (obj != ROD ||
1180                                    !TOTING(ROD2))) ?
1181                ARENT_CARRYING :
1182                actions[verb].message);
1183         return GO_CLEAROBJ;
1184     }
1185
1186     if (game.prop[BIRD] == BIRD_UNCAGED && game.loc == game.place[STEPS] && game.prop[JADE] < 0) {
1187         drop(JADE, game.loc);
1188         game.prop[JADE] = 0;
1189         --game.tally;
1190         rspeak(NECKLACE_FLY);
1191         return GO_CLEAROBJ;
1192     } else {
1193         if (game.closed) {
1194             rspeak((game.prop[BIRD] == BIRD_CAGED) ?
1195                    CAGE_FLY :
1196                    FREE_FLY);
1197             return GO_DWARFWAKE;
1198         }
1199         if (game.closng ||
1200             !AT(FISSURE)) {
1201             rspeak((game.prop[BIRD] == BIRD_CAGED) ?
1202                    CAGE_FLY :
1203                    FREE_FLY);
1204             return GO_CLEAROBJ;
1205         }
1206         if (HERE(BIRD))
1207             rspeak((game.prop[BIRD] == BIRD_CAGED) ?
1208                    CAGE_FLY :
1209                    FREE_FLY);
1210
1211         /* FIXME: Arithemetic on property values */
1212         game.prop[FISSURE] = 1 - game.prop[FISSURE];
1213         pspeak(FISSURE, look, 2 - game.prop[FISSURE], true);
1214         return GO_CLEAROBJ;
1215     }
1216 }
1217
1218 int action(struct command_t *command)
1219 /*  Analyse a verb.  Remember what it was, go back for object if second word
1220  *  unless verb is "say", which snarfs arbitrary second word.
1221  */
1222 {
1223     if (command->part == unknown) {
1224         /*  Analyse an object word.  See if the thing is here, whether
1225          *  we've got a verb yet, and so on.  Object must be here
1226          *  unless verb is "find" or "invent(ory)" (and no new verb
1227          *  yet to be analysed).  Water and oil are also funny, since
1228          *  they are never actually dropped at any location, but might
1229          *  be here inside the bottle or urn or as a feature of the
1230          *  location. */
1231         if (HERE(command->obj))
1232             /* FALL THROUGH */;
1233         else if (command->obj == GRATE) {
1234             if (game.loc == LOC_START ||
1235                 game.loc == LOC_VALLEY ||
1236                 game.loc == LOC_SLIT) {
1237                 command->obj = DPRSSN;
1238             }
1239             if (game.loc == LOC_COBBLE ||
1240                 game.loc == LOC_DEBRIS ||
1241                 game.loc == LOC_AWKWARD ||
1242                 game.loc == LOC_BIRD ||
1243                 game.loc == LOC_PITTOP) {
1244                 command->obj = ENTRNC;
1245             }
1246         } else if (command->obj == DWARF && atdwrf(game.loc) > 0)
1247             /* FALL THROUGH */;
1248         else if ((LIQUID() == command->obj && HERE(BOTTLE)) ||
1249                  command->obj == LIQLOC(game.loc))
1250             /* FALL THROUGH */;
1251         else if (command->obj == OIL && HERE(URN) && game.prop[URN] != 0) {
1252             command->obj = URN;
1253             /* FALL THROUGH */;
1254         } else if (command->obj == PLANT && AT(PLANT2) && game.prop[PLANT2] != 0) {
1255             command->obj = PLANT2;
1256             /* FALL THROUGH */;
1257         } else if (command->obj == KNIFE && game.knfloc == game.loc) {
1258             game.knfloc = -1;
1259             rspeak(KNIVES_VANISH);
1260             return GO_CLEAROBJ;
1261         } else if (command->obj == ROD && HERE(ROD2)) {
1262             command->obj = ROD2;
1263             /* FALL THROUGH */;
1264         } else if ((command->verb == FIND ||
1265                     command->verb == INVENTORY) && command->wd2 <= 0)
1266             /* FALL THROUGH */;
1267         else {
1268             sspeak(NO_SEE, command->raw1);
1269             return GO_CLEAROBJ;
1270         }
1271
1272         if (command->wd2 > 0)
1273             return GO_WORD2;
1274         if (command->verb != 0)
1275             command->part = transitive;
1276     }
1277
1278     switch (command->part) {
1279     case intransitive:
1280         if (command->wd2 > 0 && command->verb != SAY)
1281             return GO_WORD2;
1282         if (command->verb == SAY)
1283             command->obj = command->wd2;
1284         if (command->obj == 0 ||
1285             command->obj == INTRANSITIVE) {
1286             /*  Analyse an intransitive verb (ie, no object given yet). */
1287             switch (command->verb) {
1288             case CARRY:
1289                 return vcarry(command->verb, INTRANSITIVE);
1290             case  DROP:
1291                 return GO_UNKNOWN;
1292             case  SAY:
1293                 return GO_UNKNOWN;
1294             case  UNLOCK:
1295                 return lock(command->verb, INTRANSITIVE);
1296             case  NOTHING: {
1297                 rspeak(OK_MAN);
1298                 return (GO_CLEAROBJ);
1299             }
1300             case  LOCK:
1301                 return lock(command->verb, INTRANSITIVE);
1302             case  LIGHT:
1303                 return light(command->verb, INTRANSITIVE);
1304             case  EXTINGUISH:
1305                 return extinguish(command->verb, INTRANSITIVE);
1306             case  WAVE:
1307                 return GO_UNKNOWN;
1308             case  TAME:
1309                 return GO_UNKNOWN;
1310             case GO: {
1311                 rspeak(actions[command->verb].message);
1312                 return GO_CLEAROBJ;
1313             }
1314             case ATTACK:
1315                 return attack(command);
1316             case POUR:
1317                 return pour(command->verb, command->obj);
1318             case EAT:
1319                 return eat(command->verb, INTRANSITIVE);
1320             case DRINK:
1321                 return drink(command->verb, command->obj);
1322             case RUB:
1323                 return GO_UNKNOWN;
1324             case THROW:
1325                 return GO_UNKNOWN;
1326             case QUIT:
1327                 return quit();
1328             case FIND:
1329                 return GO_UNKNOWN;
1330             case INVENTORY:
1331                 return inven();
1332             case FEED:
1333                 return GO_UNKNOWN;
1334             case FILL:
1335                 return fill(command->verb, command->obj);
1336             case BLAST:
1337                 blast();
1338                 return GO_CLEAROBJ;
1339             case SCORE:
1340                 score(scoregame);
1341                 return GO_CLEAROBJ;
1342             case GIANTWORDS:
1343                 return bigwords(command->wd1);
1344             case BRIEF:
1345                 return brief();
1346             case READ:
1347                 command->obj = INTRANSITIVE;
1348                 return read(*command);
1349             case BREAK:
1350                 return GO_UNKNOWN;
1351             case WAKE:
1352                 return GO_UNKNOWN;
1353             case SAVE:
1354                 return suspend();
1355             case RESUME:
1356                 return resume();
1357             case FLY:
1358                 return fly(command->verb, INTRANSITIVE);
1359             case LISTEN:
1360                 return listen();
1361             case PART:
1362                 return reservoir();
1363             default:
1364                 BUG(INTRANSITIVE_ACTION_VERB_EXCEEDS_GOTO_LIST); // LCOV_EXCL_LINE
1365             }
1366         }
1367     /* FALLTHRU */
1368     case transitive:
1369         /*  Analyse a transitive verb. */
1370         switch (command->verb) {
1371         case  CARRY:
1372             return vcarry(command->verb, command->obj);
1373         case  DROP:
1374             return discard(command->verb, command->obj, false);
1375         case  SAY:
1376             return say(command);
1377         case  UNLOCK:
1378             return lock(command->verb, command->obj);
1379         case  NOTHING: {
1380             rspeak(OK_MAN);
1381             return (GO_CLEAROBJ);
1382         }
1383         case  LOCK:
1384             return lock(command->verb, command->obj);
1385         case LIGHT:
1386             return light(command->verb, command->obj);
1387         case EXTINGUISH:
1388             return extinguish(command->verb, command->obj);
1389         case WAVE:
1390             return wave(command->verb, command->obj);
1391         case TAME: {
1392             rspeak(actions[command->verb].message);
1393             return GO_CLEAROBJ;
1394         }
1395         case GO: {
1396             rspeak(actions[command->verb].message);
1397             return GO_CLEAROBJ;
1398         }
1399         case ATTACK:
1400             return attack(command);
1401         case POUR:
1402             return pour(command->verb, command->obj);
1403         case EAT:
1404             return eat(command->verb, command->obj);
1405         case DRINK:
1406             return drink(command->verb, command->obj);
1407         case RUB:
1408             return rub(command->verb, command->obj);
1409         case THROW:
1410             return throw (command);
1411         case QUIT: {
1412             rspeak(actions[command->verb].message);
1413             return GO_CLEAROBJ;
1414         }
1415         case FIND:
1416             return find(command->verb, command->obj);
1417         case INVENTORY:
1418             return find(command->verb, command->obj);
1419         case FEED:
1420             return feed(command->verb, command->obj);
1421         case FILL:
1422             return fill(command->verb, command->obj);
1423         case BLAST:
1424             blast();
1425             return GO_CLEAROBJ;
1426         case SCORE: {
1427             rspeak(actions[command->verb].message);
1428             return GO_CLEAROBJ;
1429         }
1430         case GIANTWORDS: {
1431             rspeak(actions[command->verb].message);
1432             return GO_CLEAROBJ;
1433         }
1434         case BRIEF: {
1435             rspeak(actions[command->verb].message);
1436             return GO_CLEAROBJ;
1437         }
1438         case READ:
1439             return read(*command);
1440         case BREAK:
1441             return vbreak(command->verb, command->obj);
1442         case WAKE:
1443             return wake(command->verb, command->obj);
1444         case SAVE: {
1445             rspeak(actions[command->verb].message);
1446             return GO_CLEAROBJ;
1447         }
1448         case RESUME: {
1449             rspeak(actions[command->verb].message);
1450             return GO_CLEAROBJ;
1451         }
1452         case FLY:
1453             return fly(command->verb, command->obj);
1454         case LISTEN: {
1455             rspeak(actions[command->verb].message);
1456             return GO_CLEAROBJ;
1457         }
1458         case PART:
1459             return reservoir();
1460         default:
1461             BUG(TRANSITIVE_ACTION_VERB_EXCEEDS_GOTO_LIST); // LCOV_EXCL_LINE
1462         }
1463     case unknown:
1464         /* Unknown verb, couldn't deduce object - might need hint */
1465         sspeak(WHAT_DO, command->raw1);
1466         return GO_CHECKHINT;
1467     default:
1468         BUG(SPEECHPART_NOT_TRANSITIVE_OR_INTRANSITIVE_OR_UNKNOWN); // LCOV_EXCL_LINE
1469     }
1470 }