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(verb_t, obj_t);
   8
   9 static int attack(struct command_t *command)
  10 /*  Attack.  Assume target if unambiguous.  "Throw" also links here.
  11  *  Attackable objects fall into two categories: enemies (snake,
  12  *  dwarf, etc.)  and others (bird, clam, machine).  Ambiguous if 2
  13  *  enemies, or no enemies but 2 others. */
  14 {
  15     verb_t verb = command->verb;
  16     obj_t obj = command->obj;
  17
  18     if (obj == INTRANSITIVE) {
  19         int changes = 0;
  20         if (atdwrf(game.loc) > 0) {
  21             obj = DWARF;
  22             ++changes;
  23         }
  24         if (HERE(SNAKE)) {
  25             obj = SNAKE;
  26             ++changes;
  27         }
  28         if (AT(DRAGON) && game.prop[DRAGON] == DRAGON_BARS) {
  29             obj = DRAGON;
  30             ++changes;
  31         }
  32         if (AT(TROLL)) {
  33             obj = TROLL;
  34             ++changes;
  35         }
  36         if (AT(OGRE)) {
  37             obj = OGRE;
  38             ++changes;
  39         }
  40         if (HERE(BEAR) && game.prop[BEAR] == UNTAMED_BEAR) {
  41             obj = BEAR;
  42             ++changes;
  43         }
  44         /* check for low-priority targets */
  45         if (obj == INTRANSITIVE) {
  46             /* Can't attack bird or machine by throwing axe. */
  47             if (HERE(BIRD) && verb != THROW) {
  48                 obj = BIRD;
  49                 ++changes;
  50             }
  51             if (HERE(VEND) && verb != THROW) {
  52                 obj = VEND;
  53                 ++changes;
  54             }
  55             /* Clam and oyster both treated as clam for intransitive case;
  56              * no harm done. */
  57             if (HERE(CLAM) || HERE(OYSTER)) {
  58                 obj = CLAM;
  59                 ++changes;
  60             }
  61         }
  62         if (changes >= 2)
  63             return GO_UNKNOWN;
  64     }
  65
  66     if (obj == BIRD) {
  67         if (game.closed) {
  68             rspeak(UNHAPPY_BIRD);
  69         } else {
  70             DESTROY(BIRD);
  71             rspeak(BIRD_DEAD);
  72         }
  73         return GO_CLEAROBJ;
  74     }
  75     if (obj == VEND) {
  76         state_change(VEND,
  77                      game.prop[VEND] == VEND_BLOCKS ? VEND_UNBLOCKS : VEND_BLOCKS);
  78         return GO_CLEAROBJ;
  79     }
  80
  81     if (obj == BEAR) {
  82         switch (game.prop[BEAR]) {
  83         case UNTAMED_BEAR:
  84             rspeak(BEAR_HANDS);
  85             break;
  86         case SITTING_BEAR:
  87             rspeak(BEAR_CONFUSED);
  88             break;
  89         case CONTENTED_BEAR:
  90             rspeak(BEAR_CONFUSED);
  91             break;
  92         case BEAR_DEAD:
  93             rspeak(ALREADY_DEAD);
  94             break;
  95         }
  96         return GO_CLEAROBJ;
  97     }
  98     if (obj == DRAGON && game.prop[DRAGON] == DRAGON_BARS) {
  99         /*  Fun stuff for dragon.  If he insists on attacking it, win!
 100          *  Set game.prop to dead, move dragon to central loc (still
 101          *  fixed), move rug there (not fixed), and move him there,
 102          *  too.  Then do a null motion to get new description. */
 103         rspeak(BARE_HANDS_QUERY);
 104         if (silent_yes()) {
 105             // FIXME: setting wd1 is a workaround for broken logic
 106             command->wd1 = token_to_packed("Y");
 107         } else {
 108             // FIXME: setting wd1 is a workaround for broken logic
 109             command->wd1 = token_to_packed("N");
 110             return GO_CHECKFOO;
 111         }
 112         state_change(DRAGON, DRAGON_DEAD);
 113         game.prop[RUG] = RUG_FLOOR;
 114         /* Hardcoding LOC_SECRET5 as the dragon's death location is ugly.
 115          * The way it was computed before was worse; it depended on the
 116          * two dragon locations being LOC_SECRET4 and LOC_SECRET6 and
 117          * LOC_SECRET5 being right between them.
 118          */
 119         move(DRAGON + NOBJECTS, IS_FIXED);
 120         move(RUG + NOBJECTS, IS_FREE);
 121         move(DRAGON, LOC_SECRET5);
 122         move(RUG, LOC_SECRET5);
 123         drop(BLOOD, LOC_SECRET5);
 124         for (obj_t i = 1; i <= NOBJECTS; i++) {
 125             if (game.place[i] == objects[DRAGON].plac ||
 126                 game.place[i] == objects[DRAGON].fixd)
 127                 move(i, LOC_SECRET5);
 128         }
 129         game.loc = LOC_SECRET5;
 130         return GO_MOVE;
 131     }
 132
 133     if (obj == OGRE) {
 134         rspeak(OGRE_DODGE);
 135         if (atdwrf(game.loc) == 0)
 136             return GO_CLEAROBJ;
 137
 138         rspeak(KNIFE_THROWN);
 139         DESTROY(OGRE);
 140         int dwarves = 0;
 141         for (int i = 1; i < PIRATE; i++) {
 142             if (game.dloc[i] == game.loc) {
 143                 ++dwarves;
 144                 game.dloc[i] = LOC_LONGWEST;
 145                 game.dseen[i] = false;
 146             }
 147         }
 148         rspeak((dwarves > 1) ?
 149                OGRE_PANIC1 :
 150                OGRE_PANIC2);
 151         return GO_CLEAROBJ;
 152     }
 153
 154     switch (obj) {
 155     case INTRANSITIVE:
 156         rspeak(NO_TARGET);
 157         break;
 158     case CLAM:
 159     case OYSTER:
 160         rspeak(SHELL_IMPERVIOUS);
 161         break;
 162     case SNAKE:
 163         rspeak(SNAKE_WARNING);
 164         break;
 165     case DWARF:
 166         if (game.closed) {
 167             return GO_DWARFWAKE;
 168         }
 169         rspeak(BARE_HANDS_QUERY);
 170         break;
 171     case DRAGON:
 172         rspeak(ALREADY_DEAD);
 173         break;
 174     case TROLL:
 175         rspeak(ROCKY_TROLL);
 176         break;
 177     default:
 178         speak(actions[verb].message);
 179     }
 180     return GO_CLEAROBJ;
 181 }
 182
 183 static int bigwords(long id)
 184 /*  FEE FIE FOE FOO (AND FUM).  Advance to next state if given in proper order.
 185  *  Look up foo in special section of vocab to determine which word we've got.
 186  *  Last word zips the eggs back to the giant room (unless already there). */
 187 {
 188     if ((game.foobar == WORD_EMPTY && id == FEE) ||
 189         (game.foobar == FEE && id == FIE) ||
 190         (game.foobar == FIE && id == FOE) ||
 191         (game.foobar == FOE && id == FOO) ||
 192         (game.foobar == FOE && id == FUM)) {
 193         game.foobar = id;
 194         if ((id != FOO) && (id != FUM)) {
 195             rspeak(OK_MAN);
 196             return GO_CLEAROBJ;
 197         }
 198         game.foobar = WORD_EMPTY;
 199         if (game.place[EGGS] == objects[EGGS].plac ||
 200             (TOTING(EGGS) && game.loc == objects[EGGS].plac)) {
 201             rspeak(NOTHING_HAPPENS);
 202             return GO_CLEAROBJ;
 203         } else {
 204             /*  Bring back troll if we steal the eggs back from him before
 205              *  crossing. */
 206             if (game.place[EGGS] == LOC_NOWHERE && game.place[TROLL] == LOC_NOWHERE && game.prop[TROLL] == TROLL_UNPAID)
 207                 game.prop[TROLL] = TROLL_PAIDONCE;
 208             int k;
 209             if (HERE(EGGS))
 210                 k = EGGS_VANISHED;
 211             else if (game.loc == objects[EGGS].plac)
 212                 k = EGGS_HERE;
 213             else
 214                 k = EGGS_DONE;
 215             move(EGGS, objects[EGGS].plac);
 216             pspeak(EGGS, look, k, true);
 217             return GO_CLEAROBJ;
 218         }
 219     } else {
 220         if (game.loc == LOC_GIANTROOM) {
 221             rspeak(START_OVER);
 222         } else {
 223             /* This is new begavior in Open Adventure - sounds better when
 224              * player isn't in the Giant Room. */
 225             rspeak(WELL_POINTLESS);
 226         }
 227         game.foobar = WORD_EMPTY;
 228         return GO_CLEAROBJ;
 229     }
 230 }
 231
 232 static void blast(void)
 233 /*  Blast.  No effect unless you've got dynamite, which is a neat trick! */
 234 {
 235     if (game.prop[ROD2] == STATE_NOTFOUND ||
 236         !game.closed)
 237         rspeak(REQUIRES_DYNAMITE);
 238     else {
 239         if (HERE(ROD2))
 240             game.bonus = SPLATTER_MESSAGE;
 241         else if (game.loc == LOC_NE)
 242             game.bonus = DEFEAT_MESSAGE;
 243         else
 244             game.bonus = VICTORY_MESSAGE;
 245         rspeak(game.bonus);
 246         terminate(endgame);
 247     }
 248 }
 249
 250 static int vbreak(verb_t verb, obj_t obj)
 251 /*  Break.  Only works for mirror in repository and, of course, the vase. */
 252 {
 253     switch (obj) {
 254     case MIRROR:
 255         if (game.closed) {
 256             rspeak(BREAK_MIRROR);
 257             return GO_DWARFWAKE;
 258         } else {
 259             rspeak(TOO_FAR);
 260             break;
 261         }
 262     case VASE:
 263         if (game.prop[VASE] == VASE_WHOLE) {
 264             if (TOTING(VASE))
 265                 drop(VASE, game.loc);
 266             state_change(VASE, VASE_BROKEN);
 267             game.fixed[VASE] = IS_FIXED;
 268             break;
 269         }
 270     default:
 271         speak(actions[verb].message);
 272     }
 273     return (GO_CLEAROBJ);
 274 }
 275
 276 static int brief(void)
 277 /*  Brief.  Intransitive only.  Suppress long descriptions after first time. */
 278 {
 279     game.abbnum = 10000;
 280     game.detail = 3;
 281     rspeak(BRIEF_CONFIRM);
 282     return GO_CLEAROBJ;
 283 }
 284
 285 static int vcarry(verb_t verb, obj_t obj)
 286 /*  Carry an object.  Special cases for bird and cage (if bird in cage, can't
 287  *  take one without the other).  Liquids also special, since they depend on
 288  *  status of bottle.  Also various side effects, etc. */
 289 {
 290     if (obj == INTRANSITIVE) {
 291         /*  Carry, no object given yet.  OK if only one object present. */
 292         if (game.atloc[game.loc] == NO_OBJECT ||
 293             game.link[game.atloc[game.loc]] != 0 ||
 294             atdwrf(game.loc) > 0)
 295             return GO_UNKNOWN;
 296         obj = game.atloc[game.loc];
 297     }
 298
 299     if (TOTING(obj)) {
 300         speak(actions[verb].message);
 301         return GO_CLEAROBJ;
 302     }
 303
 304     if (obj == MESSAG) {
 305         rspeak(REMOVE_MESSAGE);
 306         DESTROY(MESSAG);
 307         return GO_CLEAROBJ;
 308     }
 309
 310     if (game.fixed[obj] != IS_FREE) {
 311         /* Next guard tests whether plant is tiny or stashed */
 312         if (obj == PLANT && game.prop[PLANT] <= PLANT_THIRSTY) {
 313             rspeak(DEEP_ROOTS);
 314             return GO_CLEAROBJ;
 315         }
 316         if (obj == BEAR && game.prop[BEAR] == SITTING_BEAR) {
 317             rspeak(BEAR_CHAINED);
 318             return GO_CLEAROBJ;
 319         }
 320         if (obj == CHAIN && game.prop[BEAR] != UNTAMED_BEAR) {
 321             rspeak(STILL_LOCKED);
 322             return GO_CLEAROBJ;
 323         }
 324         if (obj == URN) {
 325             rspeak(URN_NOBUDGE);
 326             return GO_CLEAROBJ;
 327         }
 328         if (obj == CAVITY) {
 329             rspeak(DOUGHNUT_HOLES);
 330             return GO_CLEAROBJ;
 331         }
 332         if (obj == BLOOD) {
 333             rspeak(FEW_DROPS);
 334             return GO_CLEAROBJ;
 335         }
 336         if (obj == RUG && game.prop[RUG] == RUG_HOVER) {
 337             rspeak(RUG_HOVERS);
 338             return GO_CLEAROBJ;
 339         }
 340         if (obj == SIGN) {
 341             rspeak(HAND_PASSTHROUGH);
 342             return GO_CLEAROBJ;
 343         }
 344         rspeak(YOU_JOKING);
 345         return GO_CLEAROBJ;
 346     }
 347
 348     if (obj == WATER ||
 349         obj == OIL) {
 350         if (!HERE(BOTTLE) ||
 351             LIQUID() != obj) {
 352             if (TOTING(BOTTLE)) {
 353                 if (game.prop[BOTTLE] == EMPTY_BOTTLE) {
 354                     return (fill(verb, BOTTLE));
 355                 } else if (game.prop[BOTTLE] != EMPTY_BOTTLE)
 356                     rspeak(BOTTLE_FULL);
 357                 return GO_CLEAROBJ;
 358             }
 359             rspeak(NO_CONTAINER);
 360             return GO_CLEAROBJ;
 361         }
 362         obj = BOTTLE;
 363     }
 364
 365     if (game.holdng >= INVLIMIT) {
 366         rspeak(CARRY_LIMIT);
 367         return GO_CLEAROBJ;
 368
 369     }
 370
 371     if (obj == BIRD && game.prop[BIRD] != BIRD_CAGED && STASHED(BIRD) != BIRD_CAGED) {
 372         if (game.prop[BIRD] == BIRD_FOREST_UNCAGED) {
 373             DESTROY(BIRD);
 374             rspeak(BIRD_CRAP);
 375             return GO_CLEAROBJ;
 376         }
 377         if (!TOTING(CAGE)) {
 378             rspeak(CANNOT_CARRY);
 379             return GO_CLEAROBJ;
 380         }
 381         if (TOTING(ROD)) {
 382             rspeak(BIRD_EVADES);
 383             return GO_CLEAROBJ;
 384         }
 385         game.prop[BIRD] = BIRD_CAGED;
 386     }
 387     if ((obj == BIRD ||
 388          obj == CAGE) &&
 389         (game.prop[BIRD] == BIRD_CAGED || STASHED(BIRD) == BIRD_CAGED))
 390         /* expression maps BIRD to CAGE and CAGE to BIRD */
 391         carry(BIRD + CAGE - obj, game.loc);
 392     carry(obj, game.loc);
 393     if (obj == BOTTLE && LIQUID() != NO_OBJECT)
 394         game.place[LIQUID()] = CARRIED;
 395     if (GSTONE(obj) && game.prop[obj] != STATE_FOUND) {
 396         game.prop[obj] = STATE_FOUND;
 397         game.prop[CAVITY] = CAVITY_EMPTY;
 398     }
 399     rspeak(OK_MAN);
 400     return GO_CLEAROBJ;
 401 }
 402
 403 static int chain(verb_t verb)
 404 /* Do something to the bear's chain */
 405 {
 406     if (verb != LOCK) {
 407         if (game.prop[BEAR] == UNTAMED_BEAR) {
 408             rspeak(BEAR_BLOCKS);
 409             return GO_CLEAROBJ;
 410         }
 411         if (game.prop[CHAIN] == CHAIN_HEAP) {
 412             rspeak(ALREADY_UNLOCKED);
 413             return GO_CLEAROBJ;
 414         }
 415         game.prop[CHAIN] = CHAIN_HEAP;
 416         game.fixed[CHAIN] = IS_FREE;
 417         if (game.prop[BEAR] != BEAR_DEAD)
 418             game.prop[BEAR] = CONTENTED_BEAR;
 419
 420         switch (game.prop[BEAR]) {
 421         case BEAR_DEAD:
 422             // LCOV_EXCL_START
 423             /* Can't be reached as long as the only way for the bear to die
 424              * is from a bridge collapse. Leave in in case this changes, but
 425              * exclude from coverage testing. */
 426             game.fixed[BEAR] = IS_FIXED;
 427             break;
 428         // LCOV_EXCL_STOP
 429         default:
 430             game.fixed[BEAR] = IS_FREE;
 431         }
 432         rspeak(CHAIN_UNLOCKED);
 433         return GO_CLEAROBJ;
 434     }
 435
 436     if (game.prop[CHAIN] != CHAIN_HEAP) {
 437         rspeak(ALREADY_LOCKED);
 438         return GO_CLEAROBJ;
 439     }
 440     if (game.loc != objects[CHAIN].plac) {
 441         rspeak(NO_LOCKSITE);
 442         return GO_CLEAROBJ;
 443     }
 444
 445     game.prop[CHAIN] = CHAIN_FIXED;
 446
 447     if (TOTING(CHAIN))
 448         drop(CHAIN, game.loc);
 449     game.fixed[CHAIN] = IS_FIXED;
 450
 451     rspeak(CHAIN_LOCKED);
 452     return GO_CLEAROBJ;
 453 }
 454
 455 static int discard(verb_t verb, obj_t obj)
 456 /*  Discard object.  "Throw" also comes here for most objects.  Special cases for
 457  *  bird (might attack snake or dragon) and cage (might contain bird) and vase.
 458  *  Drop coins at vending machine for extra batteries. */
 459 {
 460     if (TOTING(ROD2) && obj == ROD && !TOTING(ROD))
 461         obj = ROD2;
 462     if (!TOTING(obj)) {
 463         speak(actions[verb].message);
 464         return GO_CLEAROBJ;
 465     }
 466     if (obj == BIRD && HERE(SNAKE)) {
 467         rspeak(BIRD_ATTACKS);
 468         if (game.closed)
 469             return GO_DWARFWAKE;
 470         DESTROY(SNAKE);
 471         /* Set game.prop for use by travel options */
 472         game.prop[SNAKE] = SNAKE_CHASED;
 473
 474     } else if ((GSTONE(obj) && AT(CAVITY) && game.prop[CAVITY] != CAVITY_FULL)) {
 475         rspeak(GEM_FITS);
 476         game.prop[obj] = STATE_IN_CAVITY;
 477         game.prop[CAVITY] = CAVITY_FULL;
 478         if (HERE(RUG) && ((obj == EMERALD && game.prop[RUG] != RUG_HOVER) ||
 479                           (obj == RUBY && game.prop[RUG] == RUG_HOVER))) {
 480             if (obj == RUBY)
 481                 rspeak(RUG_SETTLES);
 482             else if (TOTING(RUG))
 483                 rspeak(RUG_WIGGLES);
 484             else
 485                 rspeak(RUG_RISES);
 486             if (!TOTING(RUG) || obj == RUBY) {
 487                 int k = (game.prop[RUG] == RUG_HOVER) ? RUG_FLOOR : RUG_HOVER;
 488                 game.prop[RUG] = k;
 489                 if (k == RUG_HOVER)
 490                     k = objects[SAPPH].plac;
 491                 move(RUG + NOBJECTS, k);
 492             }
 493         }
 494     } else if (obj == COINS && HERE(VEND)) {
 495         DESTROY(COINS);
 496         drop(BATTERY, game.loc);
 497         pspeak(BATTERY, look, FRESH_BATTERIES, true);
 498         return GO_CLEAROBJ;
 499     } else if (obj == BIRD && AT(DRAGON) && game.prop[DRAGON] == DRAGON_BARS) {
 500         rspeak(BIRD_BURNT);
 501         DESTROY(BIRD);
 502         return GO_CLEAROBJ;
 503     } else if (obj == BEAR && AT(TROLL)) {
 504         state_change(TROLL, TROLL_GONE);
 505         move(TROLL, LOC_NOWHERE);
 506         move(TROLL + NOBJECTS, IS_FREE);
 507         move(TROLL2, objects[TROLL].plac);
 508         move(TROLL2 + NOBJECTS, objects[TROLL].fixd);
 509         juggle(CHASM);
 510     } else if (obj != VASE ||
 511                game.loc == objects[PILLOW].plac) {
 512         rspeak(OK_MAN);
 513     } else {
 514         state_change(VASE, AT(PILLOW)
 515                      ? VASE_WHOLE
 516                      : VASE_DROPPED);
 517         if (game.prop[VASE] != VASE_WHOLE)
 518             game.fixed[VASE] = IS_FIXED;
 519     }
 520     int k = LIQUID();
 521     if (k == obj)
 522         obj = BOTTLE;
 523     if (obj == BOTTLE && k != NO_OBJECT)
 524         game.place[k] = LOC_NOWHERE;
 525     if (obj == CAGE && game.prop[BIRD] == BIRD_CAGED)
 526         drop(BIRD, game.loc);
 527     drop(obj, game.loc);
 528     if (obj != BIRD)
 529         return GO_CLEAROBJ;
 530     game.prop[BIRD] = BIRD_UNCAGED;
 531     if (FOREST(game.loc))
 532         game.prop[BIRD] = BIRD_FOREST_UNCAGED;
 533     return GO_CLEAROBJ;
 534 }
 535
 536 static int drink(verb_t verb, obj_t obj)
 537 /*  Drink.  If no object, assume water and look for it here.  If water is in
 538  *  the bottle, drink that, else must be at a water loc, so drink stream. */
 539 {
 540     if (obj == INTRANSITIVE && LIQLOC(game.loc) != WATER &&
 541         (LIQUID() != WATER || !HERE(BOTTLE))) {
 542         return GO_UNKNOWN;
 543     }
 544
 545     if (obj == BLOOD) {
 546         DESTROY(BLOOD);
 547         state_change(DRAGON, DRAGON_BLOODLESS);
 548         game.blooded = true;
 549         return GO_CLEAROBJ;
 550     }
 551
 552     if (obj != INTRANSITIVE && obj != WATER) {
 553         rspeak(RIDICULOUS_ATTEMPT);
 554         return GO_CLEAROBJ;
 555     }
 556     if (LIQUID() == WATER && HERE(BOTTLE)) {
 557         game.place[WATER] = LOC_NOWHERE;
 558         state_change(BOTTLE, EMPTY_BOTTLE);
 559         return GO_CLEAROBJ;
 560     }
 561
 562     speak(actions[verb].message);
 563     return GO_CLEAROBJ;
 564 }
 565
 566 static int eat(verb_t verb, obj_t obj)
 567 /*  Eat.  Intransitive: assume food if present, else ask what.  Transitive: food
 568  *  ok, some things lose appetite, rest are ridiculous. */
 569 {
 570     switch (obj) {
 571     case INTRANSITIVE:
 572         if (!HERE(FOOD))
 573             return GO_UNKNOWN;
 574     case FOOD:
 575         DESTROY(FOOD);
 576         rspeak(THANKS_DELICIOUS);
 577         break;
 578     case BIRD:
 579     case SNAKE:
 580     case CLAM:
 581     case OYSTER:
 582     case DWARF:
 583     case DRAGON:
 584     case TROLL:
 585     case BEAR:
 586     case OGRE:
 587         rspeak(LOST_APPETITE);
 588         break;
 589     default:
 590         speak(actions[verb].message);
 591     }
 592     return GO_CLEAROBJ;
 593 }
 594
 595 static int extinguish(verb_t verb, obj_t obj)
 596 /* Extinguish.  Lamp, urn, dragon/volcano (nice try). */
 597 {
 598     if (obj == INTRANSITIVE) {
 599         if (HERE(LAMP) && game.prop[LAMP] == LAMP_BRIGHT)
 600             obj = LAMP;
 601         if (HERE(URN) && game.prop[URN] == URN_LIT)
 602             obj = URN;
 603         if (obj == INTRANSITIVE)
 604             return GO_UNKNOWN;
 605     }
 606
 607     switch (obj) {
 608     case URN:
 609         if (game.prop[URN] != URN_EMPTY) {
 610             state_change(URN, URN_DARK);
 611         } else {
 612             pspeak(URN, change, URN_DARK, true);
 613         }
 614         break;
 615     case LAMP:
 616         state_change(LAMP, LAMP_DARK);
 617         rspeak(DARK(game.loc) ?
 618                PITCH_DARK :
 619                NO_MESSAGE);
 620         break;
 621     case DRAGON:
 622     case VOLCANO:
 623         rspeak(BEYOND_POWER);
 624         break;
 625     default:
 626         speak(actions[verb].message);
 627     }
 628     return GO_CLEAROBJ;
 629 }
 630
 631 static int feed(verb_t verb, obj_t obj)
 632 /*  Feed.  If bird, no seed.  Snake, dragon, troll: quip.  If dwarf, make him
 633  *  mad.  Bear, special. */
 634 {
 635     switch (obj) {
 636     case BIRD:
 637         rspeak(BIRD_PINING);
 638         break;
 639     case DRAGON:
 640         if (game.prop[DRAGON] != DRAGON_BARS)
 641             rspeak(RIDICULOUS_ATTEMPT);
 642         else
 643             rspeak(NOTHING_EDIBLE);
 644         break;
 645     case SNAKE:
 646         if (!game.closed && HERE(BIRD)) {
 647             DESTROY(BIRD);
 648             rspeak(BIRD_DEVOURED);
 649         } else
 650             rspeak(NOTHING_EDIBLE);
 651         break;
 652     case TROLL:
 653         rspeak(TROLL_VICES);
 654         break;
 655     case DWARF:
 656         if (HERE(FOOD)) {
 657             game.dflag += 2;
 658             rspeak(REALLY_MAD);
 659         } else
 660             speak(actions[verb].message);
 661         break;
 662     case BEAR:
 663         if (game.prop[BEAR] == BEAR_DEAD) {
 664             rspeak(RIDICULOUS_ATTEMPT);
 665             break;
 666         }
 667         if (game.prop[BEAR] == UNTAMED_BEAR) {
 668             if (HERE(FOOD)) {
 669                 DESTROY(FOOD);
 670                 game.fixed[AXE] = IS_FREE;
 671                 game.prop[AXE] = AXE_HERE;
 672                 state_change(BEAR, SITTING_BEAR);
 673             } else
 674                 rspeak(NOTHING_EDIBLE);
 675             break;
 676         }
 677         speak(actions[verb].message);
 678         break;
 679     case OGRE:
 680         if (HERE(FOOD))
 681             rspeak(OGRE_FULL);
 682         else
 683             speak(actions[verb].message);
 684         break;
 685     default:
 686         rspeak(AM_GAME);
 687     }
 688     return GO_CLEAROBJ;
 689 }
 690
 691 int fill(verb_t verb, obj_t obj)
 692 /*  Fill.  Bottle or urn must be empty, and liquid available.  (Vase
 693  *  is nasty.) */
 694 {
 695     if (obj == VASE) {
 696         if (LIQLOC(game.loc) == NO_OBJECT) {
 697             rspeak(FILL_INVALID);
 698             return GO_CLEAROBJ;
 699         }
 700         if (!TOTING(VASE)) {
 701             rspeak(ARENT_CARRYING);
 702             return GO_CLEAROBJ;
 703         }
 704         rspeak(SHATTER_VASE);
 705         game.prop[VASE] = VASE_BROKEN;
 706         game.fixed[VASE] = IS_FIXED;
 707         drop(VASE, game.loc);
 708         return GO_CLEAROBJ;
 709     }
 710
 711     if (obj == URN) {
 712         if (game.prop[URN] != URN_EMPTY) {
 713             rspeak(FULL_URN);
 714             return GO_CLEAROBJ;
 715         }
 716         if (!HERE(BOTTLE)) {
 717             rspeak(FILL_INVALID);
 718             return GO_CLEAROBJ;
 719         }
 720         int k = LIQUID();
 721         switch (k) {
 722         case WATER:
 723             game.prop[BOTTLE] = EMPTY_BOTTLE;
 724             rspeak(WATER_URN);
 725             break;
 726         case OIL:
 727             game.prop[URN] = URN_DARK;
 728             game.prop[BOTTLE] = EMPTY_BOTTLE;
 729             rspeak(OIL_URN);
 730             break;
 731         case NO_OBJECT:
 732         default:
 733             rspeak(FILL_INVALID);
 734             return GO_CLEAROBJ;
 735         }
 736         game.place[k] = LOC_NOWHERE;
 737         return GO_CLEAROBJ;
 738     }
 739     if (obj != INTRANSITIVE && obj != BOTTLE) {
 740         speak(actions[verb].message);
 741         return GO_CLEAROBJ;
 742     }
 743     if (obj == INTRANSITIVE && !HERE(BOTTLE))
 744         return GO_UNKNOWN;
 745
 746     if (HERE(URN) && game.prop[URN] != URN_EMPTY) {
 747         rspeak(URN_NOPOUR);
 748         return GO_CLEAROBJ;
 749     }
 750     if (LIQUID() != NO_OBJECT) {
 751         rspeak(BOTTLE_FULL);
 752         return GO_CLEAROBJ;
 753     }
 754     if (LIQLOC(game.loc) == NO_OBJECT) {
 755         rspeak(NO_LIQUID);
 756         return GO_CLEAROBJ;
 757     }
 758
 759     state_change(BOTTLE, (LIQLOC(game.loc) == OIL)
 760                  ? OIL_BOTTLE
 761                  : WATER_BOTTLE);
 762     if (TOTING(BOTTLE))
 763         game.place[LIQUID()] = CARRIED;
 764     return GO_CLEAROBJ;
 765 }
 766
 767 static int find(verb_t verb, obj_t obj)
 768 /* Find.  Might be carrying it, or it might be here.  Else give caveat. */
 769 {
 770     if (TOTING(obj)) {
 771         rspeak(ALREADY_CARRYING);
 772         return GO_CLEAROBJ;
 773     }
 774
 775     if (game.closed) {
 776         rspeak(NEEDED_NEARBY);
 777         return GO_CLEAROBJ;
 778     }
 779
 780     if (AT(obj) ||
 781         (LIQUID() == obj && AT(BOTTLE)) ||
 782         obj == LIQLOC(game.loc) ||
 783         (obj == DWARF && atdwrf(game.loc) > 0)) {
 784         rspeak(YOU_HAVEIT);
 785         return GO_CLEAROBJ;
 786     }
 787
 788
 789     speak(actions[verb].message);
 790     return GO_CLEAROBJ;
 791 }
 792
 793 static int fly(verb_t verb, obj_t obj)
 794 /* Fly.  Snide remarks unless hovering rug is here. */
 795 {
 796     if (obj == INTRANSITIVE) {
 797         if (!HERE(RUG)) {
 798             rspeak(FLAP_ARMS);
 799             return GO_CLEAROBJ;
 800         }
 801         if (game.prop[RUG] != RUG_HOVER) {
 802             rspeak(RUG_NOTHING2);
 803             return GO_CLEAROBJ;
 804         }
 805         obj = RUG;
 806     }
 807
 808     if (obj != RUG) {
 809         speak(actions[verb].message);
 810         return GO_CLEAROBJ;
 811     }
 812     if (game.prop[RUG] != RUG_HOVER) {
 813         rspeak(RUG_NOTHING1);
 814         return GO_CLEAROBJ;
 815     }
 816     game.oldlc2 = game.oldloc;
 817     game.oldloc = game.loc;
 818
 819     if (game.prop[SAPPH] == STATE_NOTFOUND) {
 820         game.newloc = game.place[SAPPH];
 821         rspeak(RUG_GOES);
 822     } else {
 823         game.newloc = LOC_CLIFF;
 824         rspeak(RUG_RETURNS);
 825     }
 826     return GO_TERMINATE;
 827 }
 828
 829 static int inven(void)
 830 /* Inventory. If object, treat same as find.  Else report on current burden. */
 831 {
 832     bool empty = true;
 833     for (obj_t i = 1; i <= NOBJECTS; i++) {
 834         if (i == BEAR ||
 835             !TOTING(i))
 836             continue;
 837         if (empty) {
 838             rspeak(NOW_HOLDING);
 839             empty = false;
 840         }
 841         pspeak(i, touch, -1, false);
 842     }
 843     if (TOTING(BEAR))
 844         rspeak(TAME_BEAR);
 845     if (empty)
 846         rspeak(NO_CARRY);
 847     return GO_CLEAROBJ;
 848 }
 849
 850 static int light(verb_t verb, obj_t obj)
 851 /*  Light.  Applicable only to lamp and urn. */
 852 {
 853     if (obj == INTRANSITIVE) {
 854         int selects = 0;
 855         if (HERE(LAMP) && game.prop[LAMP] == LAMP_DARK && game.limit >= 0) {
 856             obj = LAMP;
 857             selects++;
 858         }
 859         if (HERE(URN) && game.prop[URN] == URN_DARK) {
 860             obj =  URN;
 861             selects++;
 862         }
 863         if (selects != 1)
 864             return GO_UNKNOWN;
 865     }
 866
 867     switch (obj) {
 868     case URN:
 869         state_change(URN, game.prop[URN] == URN_EMPTY ?
 870                      URN_EMPTY :
 871                      URN_LIT);
 872         break;
 873     case LAMP:
 874         if (game.limit < 0) {
 875             rspeak(LAMP_OUT);
 876             break;
 877         }
 878         state_change(LAMP, LAMP_BRIGHT);
 879         if (game.wzdark)
 880             return GO_TOP;
 881         break;
 882     default:
 883         speak(actions[verb].message);
 884     }
 885     return GO_CLEAROBJ;
 886 }
 887
 888 static int listen(void)
 889 /*  Listen.  Intransitive only.  Print stuff based on object sound proprties. */
 890 {
 891     long sound = locations[game.loc].sound;
 892     if (sound != SILENT) {
 893         rspeak(sound);
 894         if (!locations[game.loc].loud)
 895             rspeak(NO_MESSAGE);
 896         return GO_CLEAROBJ;
 897     }
 898     for (obj_t i = 1; i <= NOBJECTS; i++) {
 899         if (!HERE(i) ||
 900             objects[i].sounds[0] == NULL ||
 901             game.prop[i] < 0)
 902             continue;
 903         int mi =  game.prop[i];
 904         /* (ESR) Some unpleasant magic on object states here. Ideally
 905          * we'd have liked the bird to be a normal object that we can
 906          * use state_change() on; can't do it, because there are
 907          * actually two different series of per-state birdsounds
 908          * depending on whether player has drunk dragon's blood. */
 909         if (i == BIRD)
 910             mi += 3 * game.blooded;
 911         long packed_zzword = token_to_packed(game.zzword);
 912         pspeak(i, hear, mi, true, packed_zzword);
 913         rspeak(NO_MESSAGE);
 914         if (i == BIRD && mi == BIRD_ENDSTATE)
 915             DESTROY(BIRD);
 916         return GO_CLEAROBJ;
 917     }
 918     rspeak(ALL_SILENT);
 919     return GO_CLEAROBJ;
 920 }
 921
 922 static int lock(verb_t verb, obj_t obj)
 923 /* Lock, unlock, no object given.  Assume various things if present. */
 924 {
 925     if (obj == INTRANSITIVE) {
 926         if (HERE(CLAM))
 927             obj = CLAM;
 928         if (HERE(OYSTER))
 929             obj = OYSTER;
 930         if (AT(DOOR))
 931             obj = DOOR;
 932         if (AT(GRATE))
 933             obj = GRATE;
 934         if (HERE(CHAIN))
 935             obj = CHAIN;
 936         if (obj == INTRANSITIVE) {
 937             rspeak(NOTHING_LOCKED);
 938             return GO_CLEAROBJ;
 939         }
 940     }
 941
 942     /*  Lock, unlock object.  Special stuff for opening clam/oyster
 943      *  and for chain. */
 944
 945     switch (obj) {
 946     case CHAIN:
 947         if (HERE(KEYS)) {
 948             return chain(verb);
 949         } else
 950             rspeak(NO_KEYS);
 951         break;
 952     case GRATE:
 953         if (HERE(KEYS)) {
 954             if (game.closng) {
 955                 rspeak(EXIT_CLOSED);
 956                 if (!game.panic)
 957                     game.clock2 = PANICTIME;
 958                 game.panic = true;
 959             } else {
 960                 state_change(GRATE, (verb == LOCK) ?
 961                              GRATE_CLOSED :
 962                              GRATE_OPEN);
 963             }
 964         } else
 965             rspeak(NO_KEYS);
 966         break;
 967     case CLAM:
 968         if (verb == LOCK)
 969             rspeak(HUH_MAN);
 970         else if (!TOTING(TRIDENT))
 971             rspeak(OYSTER_OPENER);
 972         else {
 973             DESTROY(CLAM);
 974             drop(OYSTER, game.loc);
 975             drop(PEARL, LOC_CULDESAC);
 976             rspeak(PEARL_FALLS);
 977         }
 978         break;
 979     case OYSTER:
 980         if (verb == LOCK)
 981             rspeak(HUH_MAN);
 982         else
 983             rspeak(OYSTER_OPENER);
 984         break;
 985     case DOOR:
 986         rspeak((game.prop[DOOR] == DOOR_UNRUSTED) ? OK_MAN : RUSTY_DOOR);
 987         break;
 988     case CAGE:
 989         rspeak( NO_LOCK);
 990         break;
 991     case KEYS:
 992         rspeak(CANNOT_UNLOCK);
 993         break;
 994     default:
 995         speak(actions[verb].message);
 996     }
 997
 998     return GO_CLEAROBJ;
 999 }
1000
1001 static int pour(verb_t verb, obj_t obj)
1002 /*  Pour.  If no object, or object is bottle, assume contents of bottle.
1003  *  special tests for pouring water or oil on plant or rusty door. */
1004 {
1005     if (obj == BOTTLE ||
1006         obj == INTRANSITIVE)
1007         obj = LIQUID();
1008     if (obj == NO_OBJECT)
1009         return GO_UNKNOWN;
1010     if (!TOTING(obj)) {
1011         speak(actions[verb].message);
1012         return GO_CLEAROBJ;
1013     }
1014
1015     if (obj != OIL && obj != WATER) {
1016         rspeak(CANT_POUR);
1017         return GO_CLEAROBJ;
1018     }
1019     if (HERE(URN) && game.prop[URN] == URN_EMPTY)
1020         return fill(verb, URN);
1021     game.prop[BOTTLE] = EMPTY_BOTTLE;
1022     game.place[obj] = LOC_NOWHERE;
1023     if (!(AT(PLANT) ||
1024           AT(DOOR))) {
1025         rspeak(GROUND_WET);
1026         return GO_CLEAROBJ;
1027     }
1028     if (!AT(DOOR)) {
1029         if (obj == WATER) {
1030             /* cycle through the three plant states */
1031             state_change(PLANT, MOD(game.prop[PLANT] + 1, 3));
1032             game.prop[PLANT2] = game.prop[PLANT];
1033             return GO_MOVE;
1034         } else {
1035             rspeak(SHAKING_LEAVES);
1036             return GO_CLEAROBJ;
1037         }
1038     } else {
1039         state_change(DOOR, (obj == OIL) ?
1040                      DOOR_UNRUSTED :
1041                      DOOR_RUSTED);
1042         return GO_CLEAROBJ;
1043     }
1044 }
1045
1046 static int quit(void)
1047 /*  Quit.  Intransitive only.  Verify intent and exit if that's what he wants. */
1048 {
1049     if (yes(arbitrary_messages[REALLY_QUIT], arbitrary_messages[OK_MAN], arbitrary_messages[OK_MAN]))
1050         terminate(quitgame);
1051     return GO_CLEAROBJ;
1052 }
1053
1054 static int read(struct command_t command)
1055 /*  Read.  Print stuff based on objtxt.  Oyster (?) is special case. */
1056 {
1057     if (command.obj == INTRANSITIVE) {
1058         command.obj = NO_OBJECT;
1059         for (int i = 1; i <= NOBJECTS; i++) {
1060             if (HERE(i) && objects[i].texts[0] != NULL && game.prop[i] >= 0)
1061                 command.obj = command.obj * NOBJECTS + i;
1062         }
1063         if (command.obj > NOBJECTS ||
1064             command.obj == NO_OBJECT ||
1065             DARK(game.loc))
1066             return GO_UNKNOWN;
1067     }
1068
1069     if (DARK(game.loc)) {
1070         sspeak(NO_SEE, command.raw1);
1071     } else if (command.obj == OYSTER && !game.clshnt && game.closed) {
1072         game.clshnt = yes(arbitrary_messages[CLUE_QUERY], arbitrary_messages[WAYOUT_CLUE], arbitrary_messages[OK_MAN]);
1073     } else if (objects[command.obj].texts[0] == NULL ||
1074                game.prop[command.obj] == STATE_NOTFOUND) {
1075         speak(actions[command.verb].message);
1076     } else
1077         pspeak(command.obj, study, game.prop[command.obj], true);
1078     return GO_CLEAROBJ;
1079 }
1080
1081 static int reservoir(void)
1082 /*  Z'ZZZ (word gets recomputed at startup; different each game). */
1083 {
1084     if (!AT(RESER) && game.loc != LOC_RESBOTTOM) {
1085         rspeak(NOTHING_HAPPENS);
1086         return GO_CLEAROBJ;
1087     } else {
1088         state_change(RESER,
1089                      game.prop[RESER] == WATERS_PARTED ? WATERS_UNPARTED : WATERS_PARTED);
1090         if (AT(RESER))
1091             return GO_CLEAROBJ;
1092         else {
1093             game.oldlc2 = game.loc;
1094             game.newloc = LOC_NOWHERE;
1095             rspeak(NOT_BRIGHT);
1096             return GO_TERMINATE;
1097         }
1098     }
1099 }
1100
1101 static int rub(verb_t verb, obj_t obj)
1102 /* Rub.  Yields various snide remarks except for lit urn. */
1103 {
1104     if (obj == URN && game.prop[URN] == URN_LIT) {
1105         DESTROY(URN);
1106         drop(AMBER, game.loc);
1107         game.prop[AMBER] = AMBER_IN_ROCK;
1108         --game.tally;
1109         drop(CAVITY, game.loc);
1110         rspeak(URN_GENIES);
1111     } else if (obj != LAMP) {
1112         rspeak(PECULIAR_NOTHING);
1113     } else {
1114         speak(actions[verb].message);
1115     }
1116     return GO_CLEAROBJ;
1117 }
1118
1119 static int say(struct command_t *command)
1120 /* Say.  Echo WD2 (or WD1 if no WD2 (SAY WHAT?, etc.).)  Magic words override. */
1121 {
1122     if (command->wd2 > 0) {
1123         command->wd1 = command->wd2;
1124         strncpy(command->raw1, command->raw2, LINESIZE - 1);
1125     }
1126     char word1[TOKLEN + 1];
1127     packed_to_token(command->wd1, word1);
1128     long wd;
1129     enum wordtype type;
1130     get_vocab_metadata(word1, &wd, &type);
1131     if (wd == XYZZY ||
1132         wd == PLUGH ||
1133         wd == PLOVER ||
1134         wd == FEE ||
1135         wd == FIE ||
1136         wd == FOE ||
1137         wd == FOO ||
1138         wd == FUM ||
1139         wd == PART) {
1140         /* FIXME: scribbles on the interpreter's command block */
1141         wordclear(&command->wd2);
1142         return GO_LOOKUP;
1143     }
1144     sspeak(OKEY_DOKEY, command->raw1);
1145     return GO_CLEAROBJ;
1146 }
1147
1148 static int throw_support(long spk)
1149 {
1150     rspeak(spk);
1151     drop(AXE, game.loc);
1152     return GO_MOVE;
1153 }
1154
1155 static int throw (struct command_t *command)
1156 /*  Throw.  Same as discard unless axe.  Then same as attack except
1157  *  ignore bird, and if dwarf is present then one might be killed.
1158  *  (Only way to do so!)  Axe also special for dragon, bear, and
1159  *  troll.  Treasures special for troll. */
1160 {
1161     if (!TOTING(command->obj)) {
1162         speak(actions[command->verb].message);
1163         return GO_CLEAROBJ;
1164     }
1165     if (objects[command->obj].is_treasure && AT(TROLL)) {
1166         /*  Snarf a treasure for the troll. */
1167         drop(command->obj, LOC_NOWHERE);
1168         move(TROLL, LOC_NOWHERE);
1169         move(TROLL + NOBJECTS, IS_FREE);
1170         drop(TROLL2, objects[TROLL].plac);
1171         drop(TROLL2 + NOBJECTS, objects[TROLL].fixd);
1172         juggle(CHASM);
1173         rspeak(TROLL_SATISFIED);
1174         return GO_CLEAROBJ;
1175     }
1176     if (command->obj == FOOD && HERE(BEAR)) {
1177         /* But throwing food is another story. */
1178         command->obj = BEAR;
1179         return (feed(command->verb, command->obj));
1180     }
1181     if (command->obj != AXE)
1182         return (discard(command->verb, command->obj));
1183     else {
1184         if (atdwrf(game.loc) <= 0) {
1185             if (AT(DRAGON) && game.prop[DRAGON] == DRAGON_BARS)
1186                 return throw_support(DRAGON_SCALES);
1187             if (AT(TROLL))
1188                 return throw_support(TROLL_RETURNS);
1189             if (AT(OGRE))
1190                 return throw_support(OGRE_DODGE);
1191             if (HERE(BEAR) && game.prop[BEAR] == UNTAMED_BEAR) {
1192                 /* This'll teach him to throw the axe at the bear! */
1193                 drop(AXE, game.loc);
1194                 game.fixed[AXE] = IS_FIXED;
1195                 juggle(BEAR);
1196                 state_change(AXE, AXE_LOST);
1197                 return GO_CLEAROBJ;
1198             }
1199             command->obj = INTRANSITIVE;
1200             return (attack(command));
1201         }
1202
1203         if (randrange(NDWARVES + 1) < game.dflag) {
1204             return throw_support(DWARF_DODGES);
1205         } else {
1206             long i = atdwrf(game.loc);
1207             game.dseen[i] = false;
1208             game.dloc[i] = LOC_NOWHERE;
1209             return throw_support((++game.dkill == 1) ?
1210                                  DWARF_SMOKE :
1211                                  KILLED_DWARF);
1212         }
1213     }
1214 }
1215
1216 static int wake(verb_t verb, obj_t obj)
1217 /* Wake.  Only use is to disturb the dwarves. */
1218 {
1219     if (obj != DWARF ||
1220         !game.closed) {
1221         speak(actions[verb].message);
1222         return GO_CLEAROBJ;
1223     } else {
1224         rspeak(PROD_DWARF);
1225         return GO_DWARFWAKE;
1226     }
1227 }
1228
1229 static int wave(verb_t verb, obj_t obj)
1230 /* Wave.  No effect unless waving rod at fissure or at bird. */
1231 {
1232     if (obj != ROD ||
1233         !TOTING(obj) ||
1234         (!HERE(BIRD) &&
1235          (game.closng ||
1236           !AT(FISSURE)))) {
1237         speak(((!TOTING(obj)) && (obj != ROD ||
1238                                   !TOTING(ROD2))) ?
1239               arbitrary_messages[ARENT_CARRYING] :
1240               actions[verb].message);
1241         return GO_CLEAROBJ;
1242     }
1243
1244     if (game.prop[BIRD] == BIRD_UNCAGED && game.loc == game.place[STEPS] && game.prop[JADE] == STATE_NOTFOUND) {
1245         drop(JADE, game.loc);
1246         game.prop[JADE] = STATE_FOUND;
1247         --game.tally;
1248         rspeak(NECKLACE_FLY);
1249         return GO_CLEAROBJ;
1250     } else {
1251         if (game.closed) {
1252             rspeak((game.prop[BIRD] == BIRD_CAGED) ?
1253                    CAGE_FLY :
1254                    FREE_FLY);
1255             return GO_DWARFWAKE;
1256         }
1257         if (game.closng ||
1258             !AT(FISSURE)) {
1259             rspeak((game.prop[BIRD] == BIRD_CAGED) ?
1260                    CAGE_FLY :
1261                    FREE_FLY);
1262             return GO_CLEAROBJ;
1263         }
1264         if (HERE(BIRD))
1265             rspeak((game.prop[BIRD] == BIRD_CAGED) ?
1266                    CAGE_FLY :
1267                    FREE_FLY);
1268
1269         state_change(FISSURE,
1270                      game.prop[FISSURE] == BRIDGED ? UNBRIDGED : BRIDGED);
1271         return GO_CLEAROBJ;
1272     }
1273 }
1274
1275 int action(struct command_t *command)
1276 /*  Analyse a verb.  Remember what it was, go back for object if second word
1277  *  unless verb is "say", which snarfs arbitrary second word.
1278  */
1279 {
1280     if (command->part == unknown) {
1281         /*  Analyse an object word.  See if the thing is here, whether
1282          *  we've got a verb yet, and so on.  Object must be here
1283          *  unless verb is "find" or "invent(ory)" (and no new verb
1284          *  yet to be analysed).  Water and oil are also funny, since
1285          *  they are never actually dropped at any location, but might
1286          *  be here inside the bottle or urn or as a feature of the
1287          *  location. */
1288         if (HERE(command->obj))
1289             /* FALL THROUGH */;
1290         else if (command->obj == GRATE) {
1291             if (game.loc == LOC_START ||
1292                 game.loc == LOC_VALLEY ||
1293                 game.loc == LOC_SLIT) {
1294                 command->obj = DPRSSN;
1295             }
1296             if (game.loc == LOC_COBBLE ||
1297                 game.loc == LOC_DEBRIS ||
1298                 game.loc == LOC_AWKWARD ||
1299                 game.loc == LOC_BIRD ||
1300                 game.loc == LOC_PITTOP) {
1301                 command->obj = ENTRNC;
1302             }
1303         } else if (command->obj == DWARF && atdwrf(game.loc) > 0)
1304             /* FALL THROUGH */;
1305         else if ((LIQUID() == command->obj && HERE(BOTTLE)) ||
1306                  command->obj == LIQLOC(game.loc))
1307             /* FALL THROUGH */;
1308         else if (command->obj == OIL && HERE(URN) && game.prop[URN] != URN_EMPTY) {
1309             command->obj = URN;
1310             /* FALL THROUGH */;
1311         } else if (command->obj == PLANT && AT(PLANT2) && game.prop[PLANT2] != PLANT_THIRSTY) {
1312             command->obj = PLANT2;
1313             /* FALL THROUGH */;
1314         } else if (command->obj == KNIFE && game.knfloc == game.loc) {
1315             game.knfloc = -1;
1316             rspeak(KNIVES_VANISH);
1317             return GO_CLEAROBJ;
1318         } else if (command->obj == ROD && HERE(ROD2)) {
1319             command->obj = ROD2;
1320             /* FALL THROUGH */;
1321         } else if ((command->verb == FIND ||
1322                     command->verb == INVENTORY) && command->wd2 <= 0)
1323             /* FALL THROUGH */;
1324         else {
1325             sspeak(NO_SEE, command->raw1);
1326             return GO_CLEAROBJ;
1327         }
1328
1329         if (command->wd2 > 0)
1330             return GO_WORD2;
1331         if (command->verb != 0)
1332             command->part = transitive;
1333     }
1334
1335     switch (command->part) {
1336     case intransitive:
1337         if (command->wd2 > 0 && command->verb != SAY)
1338             return GO_WORD2;
1339         if (command->verb == SAY)
1340             command->obj = command->wd2;
1341         if (command->obj == NO_OBJECT ||
1342             command->obj == INTRANSITIVE) {
1343             /*  Analyse an intransitive verb (ie, no object given yet). */
1344             switch (command->verb) {
1345             case CARRY:
1346                 return vcarry(command->verb, INTRANSITIVE);
1347             case  DROP:
1348                 return GO_UNKNOWN;
1349             case  SAY:
1350                 return GO_UNKNOWN;
1351             case  UNLOCK:
1352                 return lock(command->verb, INTRANSITIVE);
1353             case  NOTHING: {
1354                 rspeak(OK_MAN);
1355                 return (GO_CLEAROBJ);
1356             }
1357             case  LOCK:
1358                 return lock(command->verb, INTRANSITIVE);
1359             case  LIGHT:
1360                 return light(command->verb, INTRANSITIVE);
1361             case  EXTINGUISH:
1362                 return extinguish(command->verb, INTRANSITIVE);
1363             case  WAVE:
1364                 return GO_UNKNOWN;
1365             case  TAME:
1366                 return GO_UNKNOWN;
1367             case GO: {
1368                 speak(actions[command->verb].message);
1369                 return GO_CLEAROBJ;
1370             }
1371             case ATTACK:
1372                 command->obj = INTRANSITIVE;
1373                 return attack(command);
1374             case POUR:
1375                 return pour(command->verb, INTRANSITIVE);
1376             case EAT:
1377                 return eat(command->verb, INTRANSITIVE);
1378             case DRINK:
1379                 return drink(command->verb, INTRANSITIVE);
1380             case RUB:
1381                 return GO_UNKNOWN;
1382             case THROW:
1383                 return GO_UNKNOWN;
1384             case QUIT:
1385                 return quit();
1386             case FIND:
1387                 return GO_UNKNOWN;
1388             case INVENTORY:
1389                 return inven();
1390             case FEED:
1391                 return GO_UNKNOWN;
1392             case FILL:
1393                 return fill(command->verb, INTRANSITIVE);
1394             case BLAST:
1395                 blast();
1396                 return GO_CLEAROBJ;
1397             case SCORE:
1398                 score(scoregame);
1399                 return GO_CLEAROBJ;
1400             case FEE:
1401             case FIE:
1402             case FOE:
1403             case FOO:
1404             case FUM:
1405                 return bigwords(command->id1);
1406             case BRIEF:
1407                 return brief();
1408             case READ:
1409                 command->obj = INTRANSITIVE;
1410                 return read(*command);
1411             case BREAK:
1412                 return GO_UNKNOWN;
1413             case WAKE:
1414                 return GO_UNKNOWN;
1415             case SAVE:
1416                 return suspend();
1417             case RESUME:
1418                 return resume();
1419             case FLY:
1420                 return fly(command->verb, INTRANSITIVE);
1421             case LISTEN:
1422                 return listen();
1423             case PART:
1424                 return reservoir();
1425             default:
1426                 BUG(INTRANSITIVE_ACTION_VERB_EXCEEDS_GOTO_LIST); // LCOV_EXCL_LINE
1427             }
1428         }
1429     /* FALLTHRU */
1430     case transitive:
1431         /*  Analyse a transitive verb. */
1432         switch (command->verb) {
1433         case  CARRY:
1434             return vcarry(command->verb, command->obj);
1435         case  DROP:
1436             return discard(command->verb, command->obj);
1437         case  SAY:
1438             return say(command);
1439         case  UNLOCK:
1440             return lock(command->verb, command->obj);
1441         case  NOTHING: {
1442             rspeak(OK_MAN);
1443             return (GO_CLEAROBJ);
1444         }
1445         case  LOCK:
1446             return lock(command->verb, command->obj);
1447         case LIGHT:
1448             return light(command->verb, command->obj);
1449         case EXTINGUISH:
1450             return extinguish(command->verb, command->obj);
1451         case WAVE:
1452             return wave(command->verb, command->obj);
1453         case TAME: {
1454             speak(actions[command->verb].message);
1455             return GO_CLEAROBJ;
1456         }
1457         case GO: {
1458             speak(actions[command->verb].message);
1459             return GO_CLEAROBJ;
1460         }
1461         case ATTACK:
1462             return attack(command);
1463         case POUR:
1464             return pour(command->verb, command->obj);
1465         case EAT:
1466             return eat(command->verb, command->obj);
1467         case DRINK:
1468             return drink(command->verb, command->obj);
1469         case RUB:
1470             return rub(command->verb, command->obj);
1471         case THROW:
1472             return throw (command);
1473         case QUIT: {
1474             speak(actions[command->verb].message);
1475             return GO_CLEAROBJ;
1476         }
1477         case FIND:
1478             return find(command->verb, command->obj);
1479         case INVENTORY:
1480             return find(command->verb, command->obj);
1481         case FEED:
1482             return feed(command->verb, command->obj);
1483         case FILL:
1484             return fill(command->verb, command->obj);
1485         case BLAST:
1486             blast();
1487             return GO_CLEAROBJ;
1488         case SCORE: {
1489             speak(actions[command->verb].message);
1490             return GO_CLEAROBJ;
1491         }
1492         case FEE:
1493         case FIE:
1494         case FOE:
1495         case FOO:
1496         case FUM: {
1497             speak(actions[command->verb].message);
1498             return GO_CLEAROBJ;
1499         }
1500         case BRIEF: {
1501             speak(actions[command->verb].message);
1502             return GO_CLEAROBJ;
1503         }
1504         case READ:
1505             return read(*command);
1506         case BREAK:
1507             return vbreak(command->verb, command->obj);
1508         case WAKE:
1509             return wake(command->verb, command->obj);
1510         case SAVE: {
1511             speak(actions[command->verb].message);
1512             return GO_CLEAROBJ;
1513         }
1514         case RESUME: {
1515             speak(actions[command->verb].message);
1516             return GO_CLEAROBJ;
1517         }
1518         case FLY:
1519             return fly(command->verb, command->obj);
1520         case LISTEN: {
1521             speak(actions[command->verb].message);
1522             return GO_CLEAROBJ;
1523         }
1524         case PART:
1525             return reservoir();
1526         default:
1527             BUG(TRANSITIVE_ACTION_VERB_EXCEEDS_GOTO_LIST); // LCOV_EXCL_LINE
1528         }
1529     case unknown:
1530         /* Unknown verb, couldn't deduce object - might need hint */
1531         sspeak(WHAT_DO, command->raw1);
1532         return GO_CHECKHINT;
1533     default:
1534         BUG(SPEECHPART_NOT_TRANSITIVE_OR_INTRANSITIVE_OR_UNKNOWN); // LCOV_EXCL_LINE
1535     }
1536 }