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     bool empty = true;
 782     for (int i = 1; i <= NOBJECTS; i++) {
 783         if (i == BEAR ||
 784             !TOTING(i))
 785             continue;
 786         if (empty) {
 787             rspeak(NOW_HOLDING);
 788             empty = false;
 789         }
 790         pspeak(i, touch, -1, false);
 791     }
 792     if (TOTING(BEAR))
 793         rspeak(TAME_BEAR);
 794     if (empty)
 795         rspeak(NO_CARRY);
 796     return GO_CLEAROBJ;
 797 }
 798
 799 static int light(token_t verb, token_t obj)
 800 /*  Light.  Applicable only to lamp and urn. */
 801 {
 802     if (obj == INTRANSITIVE) {
 803         if (HERE(LAMP) && game.prop[LAMP] == LAMP_DARK && game.limit >= 0)
 804             obj = LAMP;
 805         if (HERE(URN) && game.prop[URN] == URN_DARK)
 806             obj =  URN;
 807         if (obj == INTRANSITIVE ||
 808             (HERE(LAMP) && game.prop[LAMP] == LAMP_DARK && game.limit >= 0 &&
 809              HERE(URN) && game.prop[URN] == URN_DARK))
 810             return GO_UNKNOWN;
 811     }
 812
 813     if (obj == URN) {
 814         state_change(URN, game.prop[URN] == URN_EMPTY ?
 815                      URN_EMPTY :
 816                      URN_LIT);
 817         return GO_CLEAROBJ;
 818     } else {
 819         if (obj != LAMP) {
 820             rspeak(actions[verb].message);
 821             return GO_CLEAROBJ;
 822         }
 823         if (game.limit < 0) {
 824             rspeak(LAMP_OUT);
 825             return GO_CLEAROBJ;
 826         }
 827         state_change(LAMP, LAMP_BRIGHT);
 828         if (game.wzdark)
 829             return GO_TOP;
 830         else
 831             return GO_CLEAROBJ;
 832     }
 833 }
 834
 835 static int listen(void)
 836 /*  Listen.  Intransitive only.  Print stuff based on objsnd/locsnd. */
 837 {
 838     long sound = locations[game.loc].sound;
 839     if (sound != SILENT) {
 840         rspeak(sound);
 841         if (!locations[game.loc].loud)
 842             rspeak(NO_MESSAGE);
 843         return GO_CLEAROBJ;
 844     }
 845     for (int i = 1; i <= NOBJECTS; i++) {
 846         if (!HERE(i) ||
 847             objects[i].sounds[0] == NULL ||
 848             game.prop[i] < 0)
 849             continue;
 850         int mi =  game.prop[i];
 851         if (i == BIRD)
 852             mi += 3 * game.blooded;
 853         long packed_zzword = token_to_packed(game.zzword);
 854         pspeak(i, hear, mi, true, packed_zzword);
 855         rspeak(NO_MESSAGE);
 856         /* FIXME: Magic number, sensitive to bird state logic */
 857         if (i == BIRD && game.prop[i] == 5)
 858             DESTROY(BIRD);
 859         return GO_CLEAROBJ;
 860     }
 861     rspeak(ALL_SILENT);
 862     return GO_CLEAROBJ;
 863 }
 864
 865 static int lock(token_t verb, token_t obj)
 866 /* Lock, unlock, no object given.  Assume various things if present. */
 867 {
 868     if (obj == INTRANSITIVE) {
 869         if (HERE(CLAM))
 870             obj = CLAM;
 871         if (HERE(OYSTER))
 872             obj = OYSTER;
 873         if (AT(DOOR))
 874             obj = DOOR;
 875         if (AT(GRATE))
 876             obj = GRATE;
 877         if (HERE(CHAIN))
 878             obj = CHAIN;
 879         if (obj == INTRANSITIVE) {
 880             rspeak(NOTHING_LOCKED);
 881             return GO_CLEAROBJ;
 882         }
 883     }
 884
 885     /*  Lock, unlock object.  Special stuff for opening clam/oyster
 886      *  and for chain. */
 887     if (obj == GRATE ||
 888         obj == CHAIN) {
 889         if (HERE(KEYS)) {
 890             if (obj == CHAIN)
 891                 return chain(verb);
 892             if (game.closng) {
 893                 rspeak(EXIT_CLOSED);
 894                 if (!game.panic)
 895                     game.clock2 = PANICTIME;
 896                 game.panic = true;
 897                 return GO_CLEAROBJ ;
 898             } else {
 899                 state_change(GRATE, (verb == LOCK) ?
 900                              GRATE_CLOSED :
 901                              GRATE_OPEN);
 902                 return GO_CLEAROBJ;
 903             }
 904         }
 905         rspeak(NO_KEYS);
 906         return GO_CLEAROBJ;
 907     }
 908
 909     switch (obj) {
 910     case CLAM:
 911     case OYSTER:
 912         return bivalve(verb, obj);
 913     case DOOR:
 914         rspeak((game.prop[DOOR] == DOOR_UNRUSTED) ? OK_MAN : RUSTY_DOOR);
 915         break;
 916     case CAGE:
 917         rspeak( NO_LOCK);
 918         break;
 919     case KEYS:
 920         rspeak(CANNOT_UNLOCK);
 921         break;
 922     default:
 923         rspeak(actions[verb].message);
 924     }
 925
 926     return GO_CLEAROBJ;
 927 }
 928
 929 static int pour(token_t verb, token_t obj)
 930 /*  Pour.  If no object, or object is bottle, assume contents of bottle.
 931  *  special tests for pouring water or oil on plant or rusty door. */
 932 {
 933     if (obj == BOTTLE ||
 934         obj == NO_OBJECT)
 935         obj = LIQUID();
 936     if (obj == NO_OBJECT)
 937         return GO_UNKNOWN;
 938     if (!TOTING(obj)) {
 939         rspeak(actions[verb].message);
 940         return GO_CLEAROBJ;
 941     }
 942
 943     if (obj != OIL && obj != WATER) {
 944         rspeak(CANT_POUR);
 945         return GO_CLEAROBJ;
 946     }
 947     if (HERE(URN) && game.prop[URN] == URN_EMPTY)
 948         return fill(verb, URN);
 949     game.prop[BOTTLE] = EMPTY_BOTTLE;
 950     game.place[obj] = LOC_NOWHERE;
 951     if (!(AT(PLANT) ||
 952           AT(DOOR))) {
 953         rspeak(GROUND_WET);
 954         return GO_CLEAROBJ;
 955     }
 956     if (!AT(DOOR)) {
 957         if (obj == WATER) {
 958             /* cycle through the three plant states */
 959             state_change(PLANT, MOD(game.prop[PLANT] + 1, 3));
 960             game.prop[PLANT2] = game.prop[PLANT];
 961             return GO_MOVE;
 962         } else {
 963             rspeak(SHAKING_LEAVES);
 964             return GO_CLEAROBJ;
 965         }
 966     } else {
 967         state_change(DOOR, (obj == OIL) ?
 968                      DOOR_UNRUSTED :
 969                      DOOR_RUSTED);
 970         return GO_CLEAROBJ;
 971     }
 972 }
 973
 974 static int quit(void)
 975 /*  Quit.  Intransitive only.  Verify intent and exit if that's what he wants. */
 976 {
 977     if (yes(arbitrary_messages[REALLY_QUIT], arbitrary_messages[OK_MAN], arbitrary_messages[OK_MAN]))
 978         terminate(quitgame);
 979     return GO_CLEAROBJ;
 980 }
 981
 982 static int read(struct command_t command)
 983 /*  Read.  Print stuff based on objtxt.  Oyster (?) is special case. */
 984 {
 985     if (command.obj == INTRANSITIVE) {
 986         command.obj = 0;
 987         for (int i = 1; i <= NOBJECTS; i++) {
 988             if (HERE(i) && objects[i].texts[0] != NULL && game.prop[i] >= 0)
 989                 command.obj = command.obj * NOBJECTS + i;
 990         }
 991         if (command.obj > NOBJECTS ||
 992             command.obj == 0 ||
 993             DARK(game.loc))
 994             return GO_UNKNOWN;
 995     }
 996
 997     if (DARK(game.loc)) {
 998         sspeak(NO_SEE, command.raw1);
 999     } else if (command.obj == OYSTER && !game.clshnt && game.closed) {
1000         game.clshnt = yes(arbitrary_messages[CLUE_QUERY], arbitrary_messages[WAYOUT_CLUE], arbitrary_messages[OK_MAN]);
1001     } else if (objects[command.obj].texts[0] == NULL ||
1002                game.prop[command.obj] < 0) {
1003         rspeak(actions[command.verb].message);
1004     } else
1005         pspeak(command.obj, study, game.prop[command.obj], true);
1006     return GO_CLEAROBJ;
1007 }
1008
1009 static int reservoir(void)
1010 /*  Z'ZZZ (word gets recomputed at startup; different each game). */
1011 {
1012     /* FIXME: Arithmetic on state numbers */
1013     if (!AT(RESER) && game.loc != game.fixed[RESER] - 1) {
1014         rspeak(NOTHING_HAPPENS);
1015         return GO_CLEAROBJ;
1016     } else {
1017         /* FIXME: Arithmetic on state numbers */
1018         pspeak(RESER, look, game.prop[RESER] + 1, true);
1019         game.prop[RESER] = 1 - game.prop[RESER];
1020         if (AT(RESER))
1021             return GO_CLEAROBJ;
1022         else {
1023             game.oldlc2 = game.loc;
1024             game.newloc = LOC_NOWHERE;
1025             rspeak(NOT_BRIGHT);
1026             return GO_TERMINATE;
1027         }
1028     }
1029 }
1030
1031 static int rub(token_t verb, token_t obj)
1032 /* Rub.  Yields various snide remarks except for lit urn. */
1033 {
1034     if (obj == URN && game.prop[URN] == URN_LIT) {
1035         DESTROY(URN);
1036         drop(AMBER, game.loc);
1037         game.prop[AMBER] = AMBER_IN_ROCK;
1038         --game.tally;
1039         drop(CAVITY, game.loc);
1040         rspeak(URN_GENIES);
1041     } else if (obj != LAMP) {
1042         rspeak(PECULIAR_NOTHING);
1043     } else {
1044         rspeak(actions[verb].message);
1045     }
1046     return GO_CLEAROBJ;
1047 }
1048
1049 static int say(struct command_t *command)
1050 /* Say.  Echo WD2 (or WD1 if no WD2 (SAY WHAT?, etc.).)  Magic words override. */
1051 {
1052     if (command->wd2 > 0) {
1053         command->wd1 = command->wd2;
1054         strcpy(command->raw1, command->raw2);
1055     }
1056     char word1[TOKLEN + 1];
1057     packed_to_token(command->wd1, word1);
1058     int wd = (int) get_vocab_id(word1);
1059     /* FIXME: magic numbers */
1060     if (wd == MOTION_WORD(XYZZY) ||
1061         wd == MOTION_WORD(PLUGH) ||
1062         wd == MOTION_WORD(PLOVER) ||
1063         wd == ACTION_WORD(GIANTWORDS) ||
1064         wd == ACTION_WORD(PART)) {
1065         /* FIXME: scribbles on the interpreter's command block */
1066         wordclear(&command->wd2);
1067         return GO_LOOKUP;
1068     }
1069     sspeak(OKEY_DOKEY, command->raw1);
1070     return GO_CLEAROBJ;
1071 }
1072
1073 static int throw_support(long spk)
1074 {
1075     rspeak(spk);
1076     drop(AXE, game.loc);
1077     return GO_MOVE;
1078 }
1079
1080 static int throw (struct command_t *command)
1081 /*  Throw.  Same as discard unless axe.  Then same as attack except
1082  *  ignore bird, and if dwarf is present then one might be killed.
1083  *  (Only way to do so!)  Axe also special for dragon, bear, and
1084  *  troll.  Treasures special for troll. */
1085 {
1086     if (TOTING(ROD2) && command->obj == ROD && !TOTING(ROD))
1087         command->obj = ROD2;
1088     if (!TOTING(command->obj)) {
1089         rspeak(actions[command->verb].message);
1090         return GO_CLEAROBJ;
1091     }
1092     if (objects[command->obj].is_treasure && AT(TROLL)) {
1093         /*  Snarf a treasure for the troll. */
1094         drop(command->obj, LOC_NOWHERE);
1095         move(TROLL, LOC_NOWHERE);
1096         move(TROLL + NOBJECTS, LOC_NOWHERE);
1097         drop(TROLL2, objects[TROLL].plac);
1098         drop(TROLL2 + NOBJECTS, objects[TROLL].fixd);
1099         juggle(CHASM);
1100         rspeak(TROLL_SATISFIED);
1101         return GO_CLEAROBJ;
1102     }
1103     if (command->obj == FOOD && HERE(BEAR)) {
1104         /* But throwing food is another story. */
1105         command->obj = BEAR;
1106         return (feed(command->verb, command->obj));
1107     }
1108     if (command->obj != AXE)
1109         return (discard(command->verb, command->obj, false));
1110     else {
1111         if (atdwrf(game.loc) <= 0) {
1112             if (AT(DRAGON) && game.prop[DRAGON] == DRAGON_BARS)
1113                 return throw_support(DRAGON_SCALES);
1114             if (AT(TROLL))
1115                 return throw_support(TROLL_RETURNS);
1116             else if (AT(OGRE))
1117                 return throw_support(OGRE_DODGE);
1118             else if (HERE(BEAR) && game.prop[BEAR] == UNTAMED_BEAR) {
1119                 /* This'll teach him to throw the axe at the bear! */
1120                 drop(AXE, game.loc);
1121                 game.fixed[AXE] = -1;
1122                 juggle(BEAR);
1123                 state_change(AXE, AXE_LOST);
1124                 return GO_CLEAROBJ;
1125             }
1126             command->obj = NO_OBJECT;
1127             return (attack(command));
1128         }
1129
1130         if (randrange(NDWARVES + 1) < game.dflag) {
1131             return throw_support(DWARF_DODGES);
1132         } else {
1133             long i = atdwrf(game.loc);
1134             game.dseen[i] = false;
1135             game.dloc[i] = LOC_NOWHERE;
1136             return throw_support((++game.dkill == 1) ?
1137                                  DWARF_SMOKE :
1138                                  KILLED_DWARF);
1139         }
1140     }
1141 }
1142
1143 static int wake(token_t verb, token_t obj)
1144 /* Wake.  Only use is to disturb the dwarves. */
1145 {
1146     if (obj != DWARF ||
1147         !game.closed) {
1148         rspeak(actions[verb].message);
1149         return GO_CLEAROBJ;
1150     } else {
1151         rspeak(PROD_DWARF);
1152         return GO_DWARFWAKE;
1153     }
1154 }
1155
1156 static int wave(token_t verb, token_t obj)
1157 /* Wave.  No effect unless waving rod at fissure or at bird. */
1158 {
1159     if (obj != ROD ||
1160         !TOTING(obj) ||
1161         (!HERE(BIRD) &&
1162          (game.closng ||
1163           !AT(FISSURE)))) {
1164         rspeak(((!TOTING(obj)) && (obj != ROD ||
1165                                    !TOTING(ROD2))) ?
1166                ARENT_CARRYING :
1167                actions[verb].message);
1168         return GO_CLEAROBJ;
1169     }
1170
1171     if (game.prop[BIRD] == BIRD_UNCAGED && game.loc == game.place[STEPS] && game.prop[JADE] < 0) {
1172         drop(JADE, game.loc);
1173         game.prop[JADE] = 0;
1174         --game.tally;
1175         rspeak(NECKLACE_FLY);
1176         return GO_CLEAROBJ;
1177     } else {
1178         if (game.closed) {
1179             rspeak((game.prop[BIRD] == BIRD_CAGED) ?
1180                    CAGE_FLY :
1181                    FREE_FLY);
1182             return GO_DWARFWAKE;
1183         }
1184         if (game.closng ||
1185             !AT(FISSURE)) {
1186             rspeak((game.prop[BIRD] == BIRD_CAGED) ?
1187                    CAGE_FLY :
1188                    FREE_FLY);
1189             return GO_CLEAROBJ;
1190         }
1191         if (HERE(BIRD))
1192             rspeak((game.prop[BIRD] == BIRD_CAGED) ?
1193                    CAGE_FLY :
1194                    FREE_FLY);
1195
1196         /* FIXME: Arithemetic on property values */
1197         game.prop[FISSURE] = 1 - game.prop[FISSURE];
1198         pspeak(FISSURE, look, 2 - game.prop[FISSURE], true);
1199         return GO_CLEAROBJ;
1200     }
1201 }
1202
1203 int action(struct command_t *command)
1204 /*  Analyse a verb.  Remember what it was, go back for object if second word
1205  *  unless verb is "say", which snarfs arbitrary second word.
1206  */
1207 {
1208     if (command->part == unknown) {
1209         /*  Analyse an object word.  See if the thing is here, whether
1210          *  we've got a verb yet, and so on.  Object must be here
1211          *  unless verb is "find" or "invent(ory)" (and no new verb
1212          *  yet to be analysed).  Water and oil are also funny, since
1213          *  they are never actually dropped at any location, but might
1214          *  be here inside the bottle or urn or as a feature of the
1215          *  location. */
1216         if (HERE(command->obj))
1217             /* FALL THROUGH */;
1218         else if (command->obj == GRATE) {
1219             if (game.loc == LOC_START ||
1220                 game.loc == LOC_VALLEY ||
1221                 game.loc == LOC_SLIT) {
1222                 command->obj = DPRSSN;
1223             }
1224             if (game.loc == LOC_COBBLE ||
1225                 game.loc == LOC_DEBRIS ||
1226                 game.loc == LOC_AWKWARD ||
1227                 game.loc == LOC_BIRD ||
1228                 game.loc == LOC_PITTOP) {
1229                 command->obj = ENTRNC;
1230             }
1231         } else if (command->obj == DWARF && atdwrf(game.loc) > 0)
1232             /* FALL THROUGH */;
1233         else if ((LIQUID() == command->obj && HERE(BOTTLE)) ||
1234                  command->obj == LIQLOC(game.loc))
1235             /* FALL THROUGH */;
1236         else if (command->obj == OIL && HERE(URN) && game.prop[URN] != 0) {
1237             command->obj = URN;
1238             /* FALL THROUGH */;
1239         } else if (command->obj == PLANT && AT(PLANT2) && game.prop[PLANT2] != 0) {
1240             command->obj = PLANT2;
1241             /* FALL THROUGH */;
1242         } else if (command->obj == KNIFE && game.knfloc == game.loc) {
1243             game.knfloc = -1;
1244             rspeak(KNIVES_VANISH);
1245             return GO_CLEAROBJ;
1246         } else if (command->obj == ROD && HERE(ROD2)) {
1247             command->obj = ROD2;
1248             /* FALL THROUGH */;
1249         } else if ((command->verb == FIND ||
1250                     command->verb == INVENTORY) && command->wd2 <= 0)
1251             /* FALL THROUGH */;
1252         else {
1253             sspeak(NO_SEE, command->raw1);
1254             return GO_CLEAROBJ;
1255         }
1256
1257         if (command->wd2 > 0)
1258             return GO_WORD2;
1259         if (command->verb != 0)
1260             command->part = transitive;
1261     }
1262
1263     switch (command->part) {
1264     case intransitive:
1265         if (command->wd2 > 0 && command->verb != SAY)
1266             return GO_WORD2;
1267         if (command->verb == SAY)
1268             command->obj = command->wd2;
1269         if (command->obj == 0 ||
1270             command->obj == INTRANSITIVE) {
1271             /*  Analyse an intransitive verb (ie, no object given yet). */
1272             switch (command->verb) {
1273             case CARRY:
1274                 return vcarry(command->verb, INTRANSITIVE);
1275             case  DROP:
1276                 return GO_UNKNOWN;
1277             case  SAY:
1278                 return GO_UNKNOWN;
1279             case  UNLOCK:
1280                 return lock(command->verb, INTRANSITIVE);
1281             case  NOTHING: {
1282                 rspeak(OK_MAN);
1283                 return (GO_CLEAROBJ);
1284             }
1285             case  LOCK:
1286                 return lock(command->verb, INTRANSITIVE);
1287             case  LIGHT:
1288                 return light(command->verb, INTRANSITIVE);
1289             case  EXTINGUISH:
1290                 return extinguish(command->verb, INTRANSITIVE);
1291             case  WAVE:
1292                 return GO_UNKNOWN;
1293             case  TAME:
1294                 return GO_UNKNOWN;
1295             case GO: {
1296                 rspeak(actions[command->verb].message);
1297                 return GO_CLEAROBJ;
1298             }
1299             case ATTACK:
1300                 return attack(command);
1301             case POUR:
1302                 return pour(command->verb, command->obj);
1303             case EAT:
1304                 return eat(command->verb, INTRANSITIVE);
1305             case DRINK:
1306                 return drink(command->verb, command->obj);
1307             case RUB:
1308                 return GO_UNKNOWN;
1309             case THROW:
1310                 return GO_UNKNOWN;
1311             case QUIT:
1312                 return quit();
1313             case FIND:
1314                 return GO_UNKNOWN;
1315             case INVENTORY:
1316                 return inven();
1317             case FEED:
1318                 return GO_UNKNOWN;
1319             case FILL:
1320                 return fill(command->verb, command->obj);
1321             case BLAST:
1322                 blast();
1323                 return GO_CLEAROBJ;
1324             case SCORE:
1325                 score(scoregame);
1326                 return GO_CLEAROBJ;
1327             case GIANTWORDS:
1328                 return bigwords(command->wd1);
1329             case BRIEF:
1330                 return brief();
1331             case READ:
1332                 command->obj = INTRANSITIVE;
1333                 return read(*command);
1334             case BREAK:
1335                 return GO_UNKNOWN;
1336             case WAKE:
1337                 return GO_UNKNOWN;
1338             case SAVE:
1339                 return suspend();
1340             case RESUME:
1341                 return resume();
1342             case FLY:
1343                 return fly(command->verb, INTRANSITIVE);
1344             case LISTEN:
1345                 return listen();
1346             case PART:
1347                 return reservoir();
1348             default:
1349                 BUG(INTRANSITIVE_ACTION_VERB_EXCEEDS_GOTO_LIST); // LCOV_EXCL_LINE
1350             }
1351         }
1352     /* FALLTHRU */
1353     case transitive:
1354         /*  Analyse a transitive verb. */
1355         switch (command->verb) {
1356         case  CARRY:
1357             return vcarry(command->verb, command->obj);
1358         case  DROP:
1359             return discard(command->verb, command->obj, false);
1360         case  SAY:
1361             return say(command);
1362         case  UNLOCK:
1363             return lock(command->verb, command->obj);
1364         case  NOTHING: {
1365             rspeak(OK_MAN);
1366             return (GO_CLEAROBJ);
1367         }
1368         case  LOCK:
1369             return lock(command->verb, command->obj);
1370         case LIGHT:
1371             return light(command->verb, command->obj);
1372         case EXTINGUISH:
1373             return extinguish(command->verb, command->obj);
1374         case WAVE:
1375             return wave(command->verb, command->obj);
1376         case TAME: {
1377             rspeak(actions[command->verb].message);
1378             return GO_CLEAROBJ;
1379         }
1380         case GO: {
1381             rspeak(actions[command->verb].message);
1382             return GO_CLEAROBJ;
1383         }
1384         case ATTACK:
1385             return attack(command);
1386         case POUR:
1387             return pour(command->verb, command->obj);
1388         case EAT:
1389             return eat(command->verb, command->obj);
1390         case DRINK:
1391             return drink(command->verb, command->obj);
1392         case RUB:
1393             return rub(command->verb, command->obj);
1394         case THROW:
1395             return throw (command);
1396         case QUIT: {
1397             rspeak(actions[command->verb].message);
1398             return GO_CLEAROBJ;
1399         }
1400         case FIND:
1401             return find(command->verb, command->obj);
1402         case INVENTORY:
1403             return find(command->verb, command->obj);
1404         case FEED:
1405             return feed(command->verb, command->obj);
1406         case FILL:
1407             return fill(command->verb, command->obj);
1408         case BLAST:
1409             blast();
1410             return GO_CLEAROBJ;
1411         case SCORE: {
1412             rspeak(actions[command->verb].message);
1413             return GO_CLEAROBJ;
1414         }
1415         case GIANTWORDS: {
1416             rspeak(actions[command->verb].message);
1417             return GO_CLEAROBJ;
1418         }
1419         case BRIEF: {
1420             rspeak(actions[command->verb].message);
1421             return GO_CLEAROBJ;
1422         }
1423         case READ:
1424             return read(*command);
1425         case BREAK:
1426             return vbreak(command->verb, command->obj);
1427         case WAKE:
1428             return wake(command->verb, command->obj);
1429         case SAVE: {
1430             rspeak(actions[command->verb].message);
1431             return GO_CLEAROBJ;
1432         }
1433         case RESUME: {
1434             rspeak(actions[command->verb].message);
1435             return GO_CLEAROBJ;
1436         }
1437         case FLY:
1438             return fly(command->verb, command->obj);
1439         case LISTEN: {
1440             rspeak(actions[command->verb].message);
1441             return GO_CLEAROBJ;
1442         }
1443         case PART:
1444             return reservoir();
1445         default:
1446             BUG(TRANSITIVE_ACTION_VERB_EXCEEDS_GOTO_LIST); // LCOV_EXCL_LINE
1447         }
1448     case unknown:
1449         /* Unknown verb, couldn't deduce object - might need hint */
1450         sspeak(WHAT_DO, command->raw1);
1451         return GO_CHECKHINT;
1452     default:
1453         BUG(SPEECHPART_NOT_TRANSITIVE_OR_INTRANSITIVE_OR_UNKNOWN); // LCOV_EXCL_LINE
1454     }
1455 }