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     int k;
 666     int spk = actions[verb].message;
 667     if (obj == VASE) {
 668         spk = ARENT_CARRYING;
 669         if (LIQLOC(game.loc) == 0)
 670             spk = FILL_INVALID;
 671         if (LIQLOC(game.loc) == 0 ||
 672             !TOTING(VASE)) {
 673             rspeak(spk);
 674             return GO_CLEAROBJ;
 675         }
 676         rspeak(SHATTER_VASE);
 677         game.prop[VASE] = VASE_BROKEN;
 678         game.fixed[VASE] = -1;
 679         return (discard(verb, obj, true));
 680     } else if (obj == URN) {
 681         spk = FULL_URN;
 682         if (game.prop[URN] != URN_EMPTY) {
 683             rspeak(spk);
 684             return GO_CLEAROBJ;
 685         }
 686         spk = FILL_INVALID;
 687         k = LIQUID();
 688         if (k == 0 ||
 689             !HERE(BOTTLE)) {
 690             rspeak(spk);
 691             return GO_CLEAROBJ;
 692         }
 693         game.place[k] = LOC_NOWHERE;
 694         game.prop[BOTTLE] = EMPTY_BOTTLE;
 695         if (k == OIL)
 696             game.prop[URN] = URN_DARK;
 697         spk = WATER_URN + game.prop[URN];
 698         rspeak(spk);
 699         return GO_CLEAROBJ;
 700     } else if (obj != NO_OBJECT && obj != BOTTLE) {
 701         rspeak(spk);
 702         return GO_CLEAROBJ;
 703     } else if (obj == NO_OBJECT && !HERE(BOTTLE))
 704         return GO_UNKNOWN;
 705     spk = BOTTLED_WATER;
 706     if (LIQLOC(game.loc) == 0)
 707         spk = NO_LIQUID;
 708     if (HERE(URN) && game.prop[URN] != URN_EMPTY)
 709         spk = URN_NOPOUR;
 710     if (LIQUID() != 0)
 711         spk = BOTTLE_FULL;
 712     if (spk == BOTTLED_WATER) {
 713         /* FIXME: Arithmetic on property values */
 714         game.prop[BOTTLE] = MOD(conditions[game.loc], 4) / 2 * 2;
 715         k = LIQUID();
 716         if (TOTING(BOTTLE))
 717             game.place[k] = CARRIED;
 718         if (k == OIL)
 719             spk = BOTTLED_OIL;
 720     }
 721     rspeak(spk);
 722     return GO_CLEAROBJ;
 723 }
 724
 725 static int find(token_t verb, token_t obj)
 726 /* Find.  Might be carrying it, or it might be here.  Else give caveat. */
 727 {
 728     int spk = actions[verb].message;
 729     if (AT(obj) ||
 730         (LIQUID() == obj && AT(BOTTLE)) ||
 731         obj == LIQLOC(game.loc) ||
 732         (obj == DWARF && atdwrf(game.loc) > 0))
 733         spk = YOU_HAVEIT;
 734     if (game.closed)
 735         spk = NEEDED_NEARBY;
 736     if (TOTING(obj))
 737         spk = ALREADY_CARRYING;
 738     rspeak(spk);
 739     return GO_CLEAROBJ;
 740 }
 741
 742 static int fly(token_t verb, token_t obj)
 743 /* Fly.  Snide remarks unless hovering rug is here. */
 744 {
 745     if (obj == INTRANSITIVE) {
 746         if (!HERE(RUG)) {
 747             rspeak(FLAP_ARMS);
 748             return GO_CLEAROBJ;
 749         }
 750         if (game.prop[RUG] != RUG_HOVER) {
 751             rspeak(RUG_NOTHING2);
 752             return GO_CLEAROBJ;
 753         }
 754         obj = RUG;
 755     }
 756
 757     if (obj != RUG) {
 758         rspeak(actions[verb].message);
 759         return GO_CLEAROBJ;
 760     }
 761     if (game.prop[RUG] != RUG_HOVER) {
 762         rspeak(RUG_NOTHING1);
 763         return GO_CLEAROBJ;
 764     }
 765     game.oldlc2 = game.oldloc;
 766     game.oldloc = game.loc;
 767     /* FIXME: Arithmetic on location values */
 768     game.newloc = game.place[RUG] + game.fixed[RUG] - game.loc;
 769
 770     if (game.prop[SAPPH] >= 0) {
 771         rspeak(RUG_RETURNS);
 772     } else {
 773         rspeak(RUG_GOES);
 774     }
 775     return GO_TERMINATE;
 776 }
 777
 778 static int inven(void)
 779 /* Inventory. If object, treat same as find.  Else report on current burden. */
 780 {
 781     int spk = NO_CARRY;
 782     for (int i = 1; i <= NOBJECTS; i++) {
 783         if (i == BEAR ||
 784             !TOTING(i))
 785             continue;
 786         if (spk == NO_CARRY)
 787             rspeak(NOW_HOLDING);
 788         pspeak(i, touch, -1, false);
 789         spk = NO_MESSAGE;
 790     }
 791     if (TOTING(BEAR))
 792         spk = TAME_BEAR;
 793     rspeak(spk);
 794     return GO_CLEAROBJ;
 795 }
 796
 797 static int light(token_t verb, token_t obj)
 798 /*  Light.  Applicable only to lamp and urn. */
 799 {
 800     if (obj == INTRANSITIVE) {
 801         if (HERE(LAMP) && game.prop[LAMP] == LAMP_DARK && game.limit >= 0)
 802             obj = LAMP;
 803         if (HERE(URN) && game.prop[URN] == URN_DARK)
 804             obj =  URN;
 805         if (obj == INTRANSITIVE ||
 806             (HERE(LAMP) && game.prop[LAMP] == LAMP_DARK && game.limit >= 0 &&
 807              HERE(URN) && game.prop[URN] == URN_DARK))
 808             return GO_UNKNOWN;
 809     }
 810
 811     if (obj == URN) {
 812         state_change(URN, game.prop[URN] == URN_EMPTY ?
 813                      URN_EMPTY :
 814                      URN_LIT);
 815         return GO_CLEAROBJ;
 816     } else {
 817         if (obj != LAMP) {
 818             rspeak(actions[verb].message);
 819             return GO_CLEAROBJ;
 820         }
 821         if (game.limit < 0) {
 822             rspeak(LAMP_OUT);
 823             return GO_CLEAROBJ;
 824         }
 825         state_change(LAMP, LAMP_BRIGHT);
 826         if (game.wzdark)
 827             return GO_TOP;
 828         else
 829             return GO_CLEAROBJ;
 830     }
 831 }
 832
 833 static int listen(void)
 834 /*  Listen.  Intransitive only.  Print stuff based on objsnd/locsnd. */
 835 {
 836     long sound = locations[game.loc].sound;
 837     if (sound != SILENT) {
 838         rspeak(sound);
 839         if (!locations[game.loc].loud)
 840             rspeak(NO_MESSAGE);
 841         return GO_CLEAROBJ;
 842     }
 843     for (int i = 1; i <= NOBJECTS; i++) {
 844         if (!HERE(i) ||
 845             objects[i].sounds[0] == NULL ||
 846             game.prop[i] < 0)
 847             continue;
 848         int mi =  game.prop[i];
 849         if (i == BIRD)
 850             mi += 3 * game.blooded;
 851         long packed_zzword = token_to_packed(game.zzword);
 852         pspeak(i, hear, mi, true, packed_zzword);
 853         rspeak(NO_MESSAGE);
 854         /* FIXME: Magic number, sensitive to bird state logic */
 855         if (i == BIRD && game.prop[i] == 5)
 856             DESTROY(BIRD);
 857         return GO_CLEAROBJ;
 858     }
 859     rspeak(ALL_SILENT);
 860     return GO_CLEAROBJ;
 861 }
 862
 863 static int lock(token_t verb, token_t obj)
 864 /* Lock, unlock, no object given.  Assume various things if present. */
 865 {
 866     if (obj == INTRANSITIVE) {
 867         if (HERE(CLAM))
 868             obj = CLAM;
 869         if (HERE(OYSTER))
 870             obj = OYSTER;
 871         if (AT(DOOR))
 872             obj = DOOR;
 873         if (AT(GRATE))
 874             obj = GRATE;
 875         if (HERE(CHAIN))
 876             obj = CHAIN;
 877         if (obj == NO_OBJECT ||
 878             obj == INTRANSITIVE) {
 879             rspeak(NOTHING_LOCKED);
 880             return GO_CLEAROBJ;
 881         }
 882     }
 883
 884     /*  Lock, unlock object.  Special stuff for opening clam/oyster
 885      *  and for chain. */
 886     int spk = actions[verb].message;
 887     if (obj == CLAM || obj == OYSTER)
 888         return bivalve(verb, obj);
 889     if (obj == DOOR)
 890         spk = (game.prop[DOOR] == DOOR_UNRUSTED) ? OK_MAN : RUSTY_DOOR;
 891     if (obj == CAGE)
 892         spk = NO_LOCK;
 893     if (obj == KEYS)
 894         spk = CANNOT_UNLOCK;
 895     if (obj == GRATE ||
 896         obj == CHAIN) {
 897         spk = NO_KEYS;
 898         if (HERE(KEYS)) {
 899             if (obj == CHAIN)
 900                 return chain(verb);
 901             if (game.closng) {
 902                 spk = EXIT_CLOSED;
 903                 if (!game.panic)
 904                     game.clock2 = PANICTIME;
 905                 game.panic = true;
 906             } else {
 907                 state_change(GRATE, (verb == LOCK) ?
 908                              GRATE_CLOSED :
 909                              GRATE_OPEN);
 910                 return GO_CLEAROBJ;
 911             }
 912         }
 913     }
 914     rspeak(spk);
 915     return GO_CLEAROBJ;
 916 }
 917
 918 static int pour(token_t verb, token_t obj)
 919 /*  Pour.  If no object, or object is bottle, assume contents of bottle.
 920  *  special tests for pouring water or oil on plant or rusty door. */
 921 {
 922     if (obj == BOTTLE ||
 923         obj == NO_OBJECT)
 924         obj = LIQUID();
 925     if (obj == NO_OBJECT)
 926         return GO_UNKNOWN;
 927     if (!TOTING(obj)) {
 928         rspeak(actions[verb].message);
 929         return GO_CLEAROBJ;
 930     }
 931
 932     if (obj != OIL && obj != WATER) {
 933         rspeak(CANT_POUR);
 934         return GO_CLEAROBJ;
 935     }
 936     if (HERE(URN) && game.prop[URN] == URN_EMPTY)
 937         return fill(verb, URN);
 938     game.prop[BOTTLE] = EMPTY_BOTTLE;
 939     game.place[obj] = LOC_NOWHERE;
 940     if (!(AT(PLANT) ||
 941           AT(DOOR))) {
 942         rspeak(GROUND_WET);
 943         return GO_CLEAROBJ;
 944     }
 945     if (!AT(DOOR)) {
 946         if (obj == WATER) {
 947             /* cycle through the three plant states */
 948             state_change(PLANT, MOD(game.prop[PLANT] + 1, 3));
 949             game.prop[PLANT2] = game.prop[PLANT];
 950             return GO_MOVE;
 951         } else {
 952             rspeak(SHAKING_LEAVES);
 953             return GO_CLEAROBJ;
 954         }
 955     } else {
 956         state_change(DOOR, (obj == OIL) ?
 957                      DOOR_UNRUSTED :
 958                      DOOR_RUSTED);
 959         return GO_CLEAROBJ;
 960     }
 961 }
 962
 963 static int quit(void)
 964 /*  Quit.  Intransitive only.  Verify intent and exit if that's what he wants. */
 965 {
 966     if (yes(arbitrary_messages[REALLY_QUIT], arbitrary_messages[OK_MAN], arbitrary_messages[OK_MAN]))
 967         terminate(quitgame);
 968     return GO_CLEAROBJ;
 969 }
 970
 971 static int read(struct command_t command)
 972 /*  Read.  Print stuff based on objtxt.  Oyster (?) is special case. */
 973 {
 974     if (command.obj == INTRANSITIVE) {
 975         command.obj = 0;
 976         for (int i = 1; i <= NOBJECTS; i++) {
 977             if (HERE(i) && objects[i].texts[0] != NULL && game.prop[i] >= 0)
 978                 command.obj = command.obj * NOBJECTS + i;
 979         }
 980         if (command.obj > NOBJECTS ||
 981             command.obj == 0 ||
 982             DARK(game.loc))
 983             return GO_UNKNOWN;
 984     }
 985
 986     if (DARK(game.loc)) {
 987         sspeak(NO_SEE, command.raw1);
 988     } else if (command.obj == OYSTER && !game.clshnt && game.closed) {
 989         game.clshnt = yes(arbitrary_messages[CLUE_QUERY], arbitrary_messages[WAYOUT_CLUE], arbitrary_messages[OK_MAN]);
 990     } else if (objects[command.obj].texts[0] == NULL ||
 991                game.prop[command.obj] < 0) {
 992         rspeak(actions[command.verb].message);
 993     } else
 994         pspeak(command.obj, study, game.prop[command.obj], true);
 995     return GO_CLEAROBJ;
 996 }
 997
 998 static int reservoir(void)
 999 /*  Z'ZZZ (word gets recomputed at startup; different each game). */
1000 {
1001     /* FIXME: Arithmetic on state numbers */
1002     if (!AT(RESER) && game.loc != game.fixed[RESER] - 1) {
1003         rspeak(NOTHING_HAPPENS);
1004         return GO_CLEAROBJ;
1005     } else {
1006         /* FIXME: Arithmetic on state numbers */
1007         pspeak(RESER, look, game.prop[RESER] + 1, true);
1008         game.prop[RESER] = 1 - game.prop[RESER];
1009         if (AT(RESER))
1010             return GO_CLEAROBJ;
1011         else {
1012             game.oldlc2 = game.loc;
1013             game.newloc = LOC_NOWHERE;
1014             rspeak(NOT_BRIGHT);
1015             return GO_TERMINATE;
1016         }
1017     }
1018 }
1019
1020 static int rub(token_t verb, token_t obj)
1021 /* Rub.  Yields various snide remarks except for lit urn. */
1022 {
1023     if (obj == URN && game.prop[URN] == URN_LIT) {
1024         DESTROY(URN);
1025         drop(AMBER, game.loc);
1026         game.prop[AMBER] = AMBER_IN_ROCK;
1027         --game.tally;
1028         drop(CAVITY, game.loc);
1029         rspeak(URN_GENIES);
1030     } else if (obj != LAMP) {
1031         rspeak(PECULIAR_NOTHING);
1032     } else {
1033         rspeak(actions[verb].message);
1034     }
1035     return GO_CLEAROBJ;
1036 }
1037
1038 static int say(struct command_t *command)
1039 /* Say.  Echo WD2 (or WD1 if no WD2 (SAY WHAT?, etc.).)  Magic words override. */
1040 {
1041     long a = command->wd1;
1042     if (command->wd2 > 0) {
1043         a = command->wd2;
1044         command->wd1 = command->wd2;
1045         strcpy(command->raw1, command->raw2);
1046     }
1047     char word1[TOKLEN + 1];
1048     packed_to_token(command->wd1, word1);
1049     int wd = (int) get_vocab_id(word1);
1050     /* FIXME: magic numbers */
1051     if (wd == MOTION_WORD(XYZZY) ||
1052         wd == MOTION_WORD(PLUGH) ||
1053         wd == MOTION_WORD(PLOVER) ||
1054         wd == ACTION_WORD(GIANTWORDS) ||
1055         wd == ACTION_WORD(PART)) {
1056         /* FIXME: scribbles on the interpreter's command block */
1057         wordclear(&command->wd2);
1058         return GO_LOOKUP;
1059     }
1060     sspeak(OKEY_DOKEY, command->raw1);
1061     return GO_CLEAROBJ;
1062 }
1063
1064 static int throw_support(long spk)
1065 {
1066     rspeak(spk);
1067     drop(AXE, game.loc);
1068     return GO_MOVE;
1069 }
1070
1071 static int throw (struct command_t *command)
1072 /*  Throw.  Same as discard unless axe.  Then same as attack except
1073  *  ignore bird, and if dwarf is present then one might be killed.
1074  *  (Only way to do so!)  Axe also special for dragon, bear, and
1075  *  troll.  Treasures special for troll. */
1076 {
1077     if (TOTING(ROD2) && command->obj == ROD && !TOTING(ROD))
1078         command->obj = ROD2;
1079     if (!TOTING(command->obj)) {
1080         rspeak(actions[command->verb].message);
1081         return GO_CLEAROBJ;
1082     }
1083     if (objects[command->obj].is_treasure && AT(TROLL)) {
1084         /*  Snarf a treasure for the troll. */
1085         drop(command->obj, LOC_NOWHERE);
1086         move(TROLL, LOC_NOWHERE);
1087         move(TROLL + NOBJECTS, LOC_NOWHERE);
1088         drop(TROLL2, objects[TROLL].plac);
1089         drop(TROLL2 + NOBJECTS, objects[TROLL].fixd);
1090         juggle(CHASM);
1091         rspeak(TROLL_SATISFIED);
1092         return GO_CLEAROBJ;
1093     }
1094     if (command->obj == FOOD && HERE(BEAR)) {
1095         /* But throwing food is another story. */
1096         command->obj = BEAR;
1097         return (feed(command->verb, command->obj));
1098     }
1099     if (command->obj != AXE)
1100         return (discard(command->verb, command->obj, false));
1101     else {
1102         if (atdwrf(game.loc) <= 0) {
1103             if (AT(DRAGON) && game.prop[DRAGON] == DRAGON_BARS)
1104                 return throw_support(DRAGON_SCALES);
1105             if (AT(TROLL))
1106                 return throw_support(TROLL_RETURNS);
1107             else if (AT(OGRE))
1108                 return throw_support(OGRE_DODGE);
1109             else if (HERE(BEAR) && game.prop[BEAR] == UNTAMED_BEAR) {
1110                 /* This'll teach him to throw the axe at the bear! */
1111                 drop(AXE, game.loc);
1112                 game.fixed[AXE] = -1;
1113                 juggle(BEAR);
1114                 state_change(AXE, AXE_LOST);
1115                 return GO_CLEAROBJ;
1116             }
1117             command->obj = NO_OBJECT;
1118             return (attack(command));
1119         }
1120
1121         if (randrange(NDWARVES + 1) < game.dflag) {
1122             return throw_support(DWARF_DODGES);
1123         } else {
1124             long i = atdwrf(game.loc);
1125             game.dseen[i] = false;
1126             game.dloc[i] = LOC_NOWHERE;
1127             return throw_support((++game.dkill == 1) ?
1128                                  DWARF_SMOKE :
1129                                  KILLED_DWARF);
1130         }
1131     }
1132 }
1133
1134 static int wake(token_t verb, token_t obj)
1135 /* Wake.  Only use is to disturb the dwarves. */
1136 {
1137     if (obj != DWARF ||
1138         !game.closed) {
1139         rspeak(actions[verb].message);
1140         return GO_CLEAROBJ;
1141     } else {
1142         rspeak(PROD_DWARF);
1143         return GO_DWARFWAKE;
1144     }
1145 }
1146
1147 static int wave(token_t verb, token_t obj)
1148 /* Wave.  No effect unless waving rod at fissure or at bird. */
1149 {
1150     if (obj != ROD ||
1151         !TOTING(obj) ||
1152         (!HERE(BIRD) &&
1153          (game.closng ||
1154           !AT(FISSURE)))) {
1155         rspeak(((!TOTING(obj)) && (obj != ROD ||
1156                                    !TOTING(ROD2))) ?
1157                ARENT_CARRYING :
1158                actions[verb].message);
1159         return GO_CLEAROBJ;
1160     }
1161
1162     if (game.prop[BIRD] == BIRD_UNCAGED && game.loc == game.place[STEPS] && game.prop[JADE] < 0) {
1163         drop(JADE, game.loc);
1164         game.prop[JADE] = 0;
1165         --game.tally;
1166         rspeak(NECKLACE_FLY);
1167         return GO_CLEAROBJ;
1168     } else {
1169         if (game.closed) {
1170             rspeak((game.prop[BIRD] == BIRD_CAGED) ?
1171                    CAGE_FLY :
1172                    FREE_FLY);
1173             return GO_DWARFWAKE;
1174         }
1175         if (game.closng ||
1176             !AT(FISSURE)) {
1177             rspeak((game.prop[BIRD] == BIRD_CAGED) ?
1178                    CAGE_FLY :
1179                    FREE_FLY);
1180             return GO_CLEAROBJ;
1181         }
1182         if (HERE(BIRD))
1183             rspeak((game.prop[BIRD] == BIRD_CAGED) ?
1184                    CAGE_FLY :
1185                    FREE_FLY);
1186
1187         /* FIXME: Arithemetic on property values */
1188         game.prop[FISSURE] = 1 - game.prop[FISSURE];
1189         pspeak(FISSURE, look, 2 - game.prop[FISSURE], true);
1190         return GO_CLEAROBJ;
1191     }
1192 }
1193
1194 int action(struct command_t *command)
1195 /*  Analyse a verb.  Remember what it was, go back for object if second word
1196  *  unless verb is "say", which snarfs arbitrary second word.
1197  */
1198 {
1199     if (command->part == unknown) {
1200         /*  Analyse an object word.  See if the thing is here, whether
1201          *  we've got a verb yet, and so on.  Object must be here
1202          *  unless verb is "find" or "invent(ory)" (and no new verb
1203          *  yet to be analysed).  Water and oil are also funny, since
1204          *  they are never actually dropped at any location, but might
1205          *  be here inside the bottle or urn or as a feature of the
1206          *  location. */
1207         if (HERE(command->obj))
1208             /* FALL THROUGH */;
1209         else if (command->obj == GRATE) {
1210             if (game.loc == LOC_START ||
1211                 game.loc == LOC_VALLEY ||
1212                 game.loc == LOC_SLIT) {
1213                 command->obj = DPRSSN;
1214             }
1215             if (game.loc == LOC_COBBLE ||
1216                 game.loc == LOC_DEBRIS ||
1217                 game.loc == LOC_AWKWARD ||
1218                 game.loc == LOC_BIRD ||
1219                 game.loc == LOC_PITTOP) {
1220                 command->obj = ENTRNC;
1221             }
1222         } else if (command->obj == DWARF && atdwrf(game.loc) > 0)
1223             /* FALL THROUGH */;
1224         else if ((LIQUID() == command->obj && HERE(BOTTLE)) ||
1225                  command->obj == LIQLOC(game.loc))
1226             /* FALL THROUGH */;
1227         else if (command->obj == OIL && HERE(URN) && game.prop[URN] != 0) {
1228             command->obj = URN;
1229             /* FALL THROUGH */;
1230         } else if (command->obj == PLANT && AT(PLANT2) && game.prop[PLANT2] != 0) {
1231             command->obj = PLANT2;
1232             /* FALL THROUGH */;
1233         } else if (command->obj == KNIFE && game.knfloc == game.loc) {
1234             game.knfloc = -1;
1235             rspeak(KNIVES_VANISH);
1236             return GO_CLEAROBJ;
1237         } else if (command->obj == ROD && HERE(ROD2)) {
1238             command->obj = ROD2;
1239             /* FALL THROUGH */;
1240         } else if ((command->verb == FIND ||
1241                     command->verb == INVENTORY) && command->wd2 <= 0)
1242             /* FALL THROUGH */;
1243         else {
1244             sspeak(NO_SEE, command->raw1);
1245             return GO_CLEAROBJ;
1246         }
1247
1248         if (command->wd2 > 0)
1249             return GO_WORD2;
1250         if (command->verb != 0)
1251             command->part = transitive;
1252     }
1253
1254     switch (command->part) {
1255     case intransitive:
1256         if (command->wd2 > 0 && command->verb != SAY)
1257             return GO_WORD2;
1258         if (command->verb == SAY)
1259             command->obj = command->wd2;
1260         if (command->obj == 0 ||
1261             command->obj == INTRANSITIVE) {
1262             /*  Analyse an intransitive verb (ie, no object given yet). */
1263             switch (command->verb) {
1264             case CARRY:
1265                 return vcarry(command->verb, INTRANSITIVE);
1266             case  DROP:
1267                 return GO_UNKNOWN;
1268             case  SAY:
1269                 return GO_UNKNOWN;
1270             case  UNLOCK:
1271                 return lock(command->verb, INTRANSITIVE);
1272             case  NOTHING: {
1273                 rspeak(OK_MAN);
1274                 return (GO_CLEAROBJ);
1275             }
1276             case  LOCK:
1277                 return lock(command->verb, INTRANSITIVE);
1278             case  LIGHT:
1279                 return light(command->verb, INTRANSITIVE);
1280             case  EXTINGUISH:
1281                 return extinguish(command->verb, INTRANSITIVE);
1282             case  WAVE:
1283                 return GO_UNKNOWN;
1284             case  TAME:
1285                 return GO_UNKNOWN;
1286             case GO: {
1287                 rspeak(actions[command->verb].message);
1288                 return GO_CLEAROBJ;
1289             }
1290             case ATTACK:
1291                 return attack(command);
1292             case POUR:
1293                 return pour(command->verb, command->obj);
1294             case EAT:
1295                 return eat(command->verb, INTRANSITIVE);
1296             case DRINK:
1297                 return drink(command->verb, command->obj);
1298             case RUB:
1299                 return GO_UNKNOWN;
1300             case THROW:
1301                 return GO_UNKNOWN;
1302             case QUIT:
1303                 return quit();
1304             case FIND:
1305                 return GO_UNKNOWN;
1306             case INVENTORY:
1307                 return inven();
1308             case FEED:
1309                 return GO_UNKNOWN;
1310             case FILL:
1311                 return fill(command->verb, command->obj);
1312             case BLAST:
1313                 blast();
1314                 return GO_CLEAROBJ;
1315             case SCORE:
1316                 score(scoregame);
1317                 return GO_CLEAROBJ;
1318             case GIANTWORDS:
1319                 return bigwords(command->wd1);
1320             case BRIEF:
1321                 return brief();
1322             case READ:
1323                 command->obj = INTRANSITIVE;
1324                 return read(*command);
1325             case BREAK:
1326                 return GO_UNKNOWN;
1327             case WAKE:
1328                 return GO_UNKNOWN;
1329             case SAVE:
1330                 return suspend();
1331             case RESUME:
1332                 return resume();
1333             case FLY:
1334                 return fly(command->verb, INTRANSITIVE);
1335             case LISTEN:
1336                 return listen();
1337             case PART:
1338                 return reservoir();
1339             default:
1340                 BUG(INTRANSITIVE_ACTION_VERB_EXCEEDS_GOTO_LIST); // LCOV_EXCL_LINE
1341             }
1342         }
1343     /* FALLTHRU */
1344     case transitive:
1345         /*  Analyse a transitive verb. */
1346         switch (command->verb) {
1347         case  CARRY:
1348             return vcarry(command->verb, command->obj);
1349         case  DROP:
1350             return discard(command->verb, command->obj, false);
1351         case  SAY:
1352             return say(command);
1353         case  UNLOCK:
1354             return lock(command->verb, command->obj);
1355         case  NOTHING: {
1356             rspeak(OK_MAN);
1357             return (GO_CLEAROBJ);
1358         }
1359         case  LOCK:
1360             return lock(command->verb, command->obj);
1361         case LIGHT:
1362             return light(command->verb, command->obj);
1363         case EXTINGUISH:
1364             return extinguish(command->verb, command->obj);
1365         case WAVE:
1366             return wave(command->verb, command->obj);
1367         case TAME: {
1368             rspeak(actions[command->verb].message);
1369             return GO_CLEAROBJ;
1370         }
1371         case GO: {
1372             rspeak(actions[command->verb].message);
1373             return GO_CLEAROBJ;
1374         }
1375         case ATTACK:
1376             return attack(command);
1377         case POUR:
1378             return pour(command->verb, command->obj);
1379         case EAT:
1380             return eat(command->verb, command->obj);
1381         case DRINK:
1382             return drink(command->verb, command->obj);
1383         case RUB:
1384             return rub(command->verb, command->obj);
1385         case THROW:
1386             return throw (command);
1387         case QUIT: {
1388             rspeak(actions[command->verb].message);
1389             return GO_CLEAROBJ;
1390         }
1391         case FIND:
1392             return find(command->verb, command->obj);
1393         case INVENTORY:
1394             return find(command->verb, command->obj);
1395         case FEED:
1396             return feed(command->verb, command->obj);
1397         case FILL:
1398             return fill(command->verb, command->obj);
1399         case BLAST:
1400             blast();
1401             return GO_CLEAROBJ;
1402         case SCORE: {
1403             rspeak(actions[command->verb].message);
1404             return GO_CLEAROBJ;
1405         }
1406         case GIANTWORDS: {
1407             rspeak(actions[command->verb].message);
1408             return GO_CLEAROBJ;
1409         }
1410         case BRIEF: {
1411             rspeak(actions[command->verb].message);
1412             return GO_CLEAROBJ;
1413         }
1414         case READ:
1415             return read(*command);
1416         case BREAK:
1417             return vbreak(command->verb, command->obj);
1418         case WAKE:
1419             return wake(command->verb, command->obj);
1420         case SAVE: {
1421             rspeak(actions[command->verb].message);
1422             return GO_CLEAROBJ;
1423         }
1424         case RESUME: {
1425             rspeak(actions[command->verb].message);
1426             return GO_CLEAROBJ;
1427         }
1428         case FLY:
1429             return fly(command->verb, command->obj);
1430         case LISTEN: {
1431             rspeak(actions[command->verb].message);
1432             return GO_CLEAROBJ;
1433         }
1434         case PART:
1435             return reservoir();
1436         default:
1437             BUG(TRANSITIVE_ACTION_VERB_EXCEEDS_GOTO_LIST); // LCOV_EXCL_LINE
1438         }
1439     case unknown:
1440         /* Unknown verb, couldn't deduce object - might need hint */
1441         sspeak(WHAT_DO, command->raw1);
1442         return GO_CHECKHINT;
1443     default:
1444         BUG(SPEECHPART_NOT_TRANSITIVE_OR_INTRANSITIVE_OR_UNKNOWN); // LCOV_EXCL_LINE
1445     }
1446 }