+
+static bool closecheck(void)
+/* Handle the closing of the cave. The cave closes "clock1" turns
+ * after the last treasure has been located (including the pirate's
+ * chest, which may of course never show up). Note that the
+ * treasures need not have been taken yet, just located. Hence
+ * clock1 must be large enough to get out of the cave (it only ticks
+ * while inside the cave). When it hits zero, we branch to 10000 to
+ * start closing the cave, and then sit back and wait for him to try
+ * to get out. If he doesn't within clock2 turns, we close the cave;
+ * if he does try, we assume he panics, and give him a few additional
+ * turns to get frantic before we close. When clock2 hits zero, we
+ * transport him into the final puzzle. Note that the puzzle depends
+ * upon all sorts of random things. For instance, there must be no
+ * water or oil, since there are beanstalks which we don't want to be
+ * able to water, since the code can't handle it. Also, we can have
+ * no keys, since there is a grate (having moved the fixed object!)
+ * there separating him from all the treasures. Most of these
+ * problems arise from the use of negative prop numbers to suppress
+ * the object descriptions until he's actually moved the objects. */
+{
+ /* Don't tick game.clock1 unless well into cave (and not at Y2). */
+ if (game.tally == 0 && INDEEP(game.loc) && game.loc != LOC_Y2)
+ --game.clock1;
+
+ /* When the first warning comes, we lock the grate, destroy
+ * the bridge, kill all the dwarves (and the pirate), remove
+ * the troll and bear (unless dead), and set "closng" to
+ * true. Leave the dragon; too much trouble to move it.
+ * from now until clock2 runs out, he cannot unlock the
+ * grate, move to any location outside the cave, or create
+ * the bridge. Nor can he be resurrected if he dies. Note
+ * that the snake is already gone, since he got to the
+ * treasure accessible only via the hall of the mountain
+ * king. Also, he's been in giant room (to get eggs), so we
+ * can refer to it. Also also, he's gotten the pearl, so we
+ * know the bivalve is an oyster. *And*, the dwarves must
+ * have been activated, since we've found chest. */
+ if (game.clock1 == 0) {
+ game.prop[GRATE] = GRATE_CLOSED;
+ game.prop[FISSURE] = UNBRIDGED;
+ for (int i = 1; i <= NDWARVES; i++) {
+ game.dseen[i] = false;
+ game.dloc[i] = LOC_NOWHERE;
+ }
+ move(TROLL, LOC_NOWHERE);
+ move(TROLL + NOBJECTS, IS_FREE);
+ move(TROLL2, objects[TROLL].plac);
+ move(TROLL2 + NOBJECTS, objects[TROLL].fixd);
+ juggle(CHASM);
+ if (game.prop[BEAR] != BEAR_DEAD)
+ DESTROY(BEAR);
+ game.prop[CHAIN] = CHAIN_HEAP;
+ game.fixed[CHAIN] = IS_FREE;
+ game.prop[AXE] = AXE_HERE;
+ game.fixed[AXE] = IS_FREE;
+ rspeak(CAVE_CLOSING);
+ game.clock1 = -1;
+ game.closng = true;
+ return true;
+ } else if (game.clock1 < 0)
+ --game.clock2;
+ if (game.clock2 == 0) {
+ /* Once he's panicked, and clock2 has run out, we come here
+ * to set up the storage room. The room has two locs,
+ * hardwired as LOC_NE and LOC_SW. At the ne end, we
+ * place empty bottles, a nursery of plants, a bed of
+ * oysters, a pile of lamps, rods with stars, sleeping
+ * dwarves, and him. At the sw end we place grate over
+ * treasures, snake pit, covey of caged birds, more rods, and
+ * pillows. A mirror stretches across one wall. Many of the
+ * objects come from known locations and/or states (e.g. the
+ * snake is known to have been destroyed and needn't be
+ * carried away from its old "place"), making the various
+ * objects be handled differently. We also drop all other
+ * objects he might be carrying (lest he have some which
+ * could cause trouble, such as the keys). We describe the
+ * flash of light and trundle back. */
+ game.prop[BOTTLE] = put(BOTTLE, LOC_NE, EMPTY_BOTTLE);
+ game.prop[PLANT] = put(PLANT, LOC_NE, PLANT_THIRSTY);
+ game.prop[OYSTER] = put(OYSTER, LOC_NE, STATE_FOUND);
+ game.prop[LAMP] = put(LAMP, LOC_NE, LAMP_DARK);
+ game.prop[ROD] = put(ROD, LOC_NE, STATE_FOUND);
+ game.prop[DWARF] = put(DWARF, LOC_NE, 0);
+ game.loc = LOC_NE;
+ game.oldloc = LOC_NE;
+ game.newloc = LOC_NE;
+ /* Leave the grate with normal (non-negative) property.
+ * Reuse sign. */
+ put(GRATE, LOC_SW, 0);
+ put(SIGN, LOC_SW, 0);
+ game.prop[SIGN] = ENDGAME_SIGN;
+ game.prop[SNAKE] = put(SNAKE, LOC_SW, SNAKE_CHASED);
+ game.prop[BIRD] = put(BIRD, LOC_SW, BIRD_CAGED);
+ game.prop[CAGE] = put(CAGE, LOC_SW, STATE_FOUND);
+ game.prop[ROD2] = put(ROD2, LOC_SW, STATE_FOUND);
+ game.prop[PILLOW] = put(PILLOW, LOC_SW, STATE_FOUND);
+
+ game.prop[MIRROR] = put(MIRROR, LOC_NE, STATE_FOUND);
+ game.fixed[MIRROR] = LOC_SW;
+
+ for (int i = 1; i <= NOBJECTS; i++) {
+ if (TOTING(i))
+ DESTROY(i);
+ }
+
+ rspeak(CAVE_CLOSED);
+ game.closed = true;
+ return true;
+ }
+
+ return false;
+}
+
+static void lampcheck(void)
+/* Check game limit and lamp timers */
+{
+ if (game.prop[LAMP] == LAMP_BRIGHT)
+ --game.limit;
+
+ /* Another way we can force an end to things is by having the
+ * lamp give out. When it gets close, we come here to warn him.
+ * First following arm checks if the lamp and fresh batteries are
+ * here, in which case we replace the batteries and continue.
+ * Second is for other cases of lamp dying. Eve after it goes
+ * out, he can explore outside for a while if desired. */
+ if (game.limit <= WARNTIME && HERE(BATTERY) && game.prop[BATTERY] == FRESH_BATTERIES && HERE(LAMP)) {
+ rspeak(REPLACE_BATTERIES);
+ game.prop[BATTERY] = DEAD_BATTERIES;
+ if (TOTING(BATTERY))
+ drop(BATTERY, game.loc);
+ game.limit += BATTERYLIFE;
+ game.lmwarn = false;
+ } else if (game.limit == 0) {
+ game.limit = -1;
+ game.prop[LAMP] = LAMP_DARK;
+ if (HERE(LAMP))
+ rspeak(LAMP_OUT);
+ } else if (game.limit <= WARNTIME) {
+ if (!game.lmwarn && HERE(LAMP)) {
+ game.lmwarn = true;
+ int spk = GET_BATTERIES;
+ if (game.place[BATTERY] == LOC_NOWHERE)
+ spk = LAMP_DIM;
+ if (game.prop[BATTERY] == DEAD_BATTERIES)
+ spk = MISSING_BATTERIES;
+ rspeak(spk);
+ }
+ }
+}
+
+static void listobjects(void)
+/* Print out descriptions of objects at this location. If
+ * not closing and property value is negative, tally off
+ * another treasure. Rug is special case; once seen, its
+ * game.prop is RUG_DRAGON (dragon on it) till dragon is killed.
+ * Similarly for chain; game.prop is initially CHAINING_BEAR (locked to
+ * bear). These hacks are because game.prop=0 is needed to
+ * get full score. */
+{
+ if (!DARK(game.loc)) {
+ ++game.abbrev[game.loc];
+ for (int i = game.atloc[game.loc]; i != 0; i = game.link[i]) {
+ long obj = i;
+ if (obj > NOBJECTS)
+ obj = obj - NOBJECTS;
+ if (obj == STEPS && TOTING(NUGGET))
+ continue;
+ if (game.prop[obj] < 0) {
+ if (game.closed)
+ continue;
+ game.prop[obj] = STATE_FOUND;
+ if (obj == RUG)
+ game.prop[RUG] = RUG_DRAGON;
+ if (obj == CHAIN)
+ game.prop[CHAIN] = CHAINING_BEAR;
+ --game.tally;
+ /* Note: There used to be a test here to see whether the
+ * player had blown it so badly that he could never ever see
+ * the remaining treasures, and if so the lamp was zapped to
+ * 35 turns. But the tests were too simple-minded; things
+ * like killing the bird before the snake was gone (can never
+ * see jewelry), and doing it "right" was hopeless. E.G.,
+ * could cross troll bridge several times, using up all
+ * available treasures, breaking vase, using coins to buy
+ * batteries, etc., and eventually never be able to get
+ * across again. If bottle were left on far side, could then
+ * never get eggs or trident, and the effects propagate. So
+ * the whole thing was flushed. anyone who makes such a
+ * gross blunder isn't likely to find everything else anyway
+ * (so goes the rationalisation). */
+ }
+ int kk = game.prop[obj];
+ if (obj == STEPS)
+ kk = (game.loc == game.fixed[STEPS])
+ ? STEPS_UP
+ : STEPS_DOWN;
+ pspeak(obj, look, kk, true);
+ }
+ }
+}
+
+static bool do_command()
+/* Get and execute a command */
+{
+ long kmod, defn;
+ static long igo = 0;
+ static struct command_t command;
+ command.verb = 0;
+
+ /* Can't leave cave once it's closing (except by main office). */
+ if (OUTSID(game.newloc) && game.newloc != 0 && game.closng) {
+ rspeak(EXIT_CLOSED);
+ game.newloc = game.loc;
+ if (!game.panic)
+ game.clock2 = PANICTIME;
+ game.panic = true;
+ }
+
+ /* See if a dwarf has seen him and has come from where he
+ * wants to go. If so, the dwarf's blocking his way. If
+ * coming from place forbidden to pirate (dwarves rooted in
+ * place) let him get out (and attacked). */
+ if (game.newloc != game.loc && !FORCED(game.loc) && !CNDBIT(game.loc, COND_NOARRR)) {
+ for (size_t i = 1; i <= NDWARVES - 1; i++) {
+ if (game.odloc[i] == game.newloc && game.dseen[i]) {
+ game.newloc = game.loc;
+ rspeak(DWARF_BLOCK);
+ break;
+ }
+ }
+ }
+ game.loc = game.newloc;
+
+ if (!dwarfmove())
+ croak();
+
+ /* Describe the current location and (maybe) get next command. */
+
+ for (;;) {
+ if (game.loc == 0)
+ croak();
+ const char* msg = locations[game.loc].description.small;
+ if (MOD(game.abbrev[game.loc], game.abbnum) == 0 ||
+ msg == 0)
+ msg = locations[game.loc].description.big;
+ if (!FORCED(game.loc) && DARK(game.loc)) {
+ /* The easiest way to get killed is to fall into a pit in
+ * pitch darkness. */
+ if (game.wzdark && PCT(35)) {
+ rspeak(PIT_FALL);
+ game.oldlc2 = game.loc;
+ croak();
+ continue; /* back to top of main interpreter loop */
+ }
+ msg = arbitrary_messages[PITCH_DARK];
+ }
+ if (TOTING(BEAR))
+ rspeak(TAME_BEAR);
+ speak(msg);
+ if (FORCED(game.loc)) {
+ playermove(HERE);
+ return true;
+ }
+ if (game.loc == LOC_Y2 && PCT(25) && !game.closng)
+ rspeak(SAYS_PLUGH);
+
+ listobjects();
+
+L2012:
+ game.oldobj = command.obj;
+
+L2600:
+ checkhints();
+
+ /* If closing time, check for any objects being toted with
+ * game.prop < 0 and stash them. This way objects won't be
+ * described until they've been picked up and put down
+ * separate from their respective piles. */
+ if (game.closed) {
+ if (game.prop[OYSTER] < 0 && TOTING(OYSTER))
+ pspeak(OYSTER, look, 1, true);
+ for (size_t i = 1; i <= NOBJECTS; i++) {
+ if (TOTING(i) && game.prop[i] < 0)
+ game.prop[i] = STASHED(i);
+ }
+ }
+ game.wzdark = DARK(game.loc);
+ if (game.knfloc > 0 && game.knfloc != game.loc)
+ game.knfloc = 0;
+
+ /* This is where we get a new command from the user */
+ char* input;
+ char inputbuf[LINESIZE];
+
+ for (;;) {
+ input = get_input();
+ if (input == NULL)
+ return (false);
+ if (word_count(input) > 2) {
+ rspeak(TWO_WORDS);
+ free(input);
+ continue;
+ }
+ if (strcmp(input, "") != 0)
+ break;
+ free(input);
+ }
+
+ strncpy(inputbuf, input, LINESIZE - 1);
+ free(input);
+
+ tokenize(inputbuf, &command);
+
+ char word1[TOKLEN + 1];
+ char word2[TOKLEN + 1];
+ packed_to_token(command.wd1, word1);
+ packed_to_token(command.wd2, word2);
+ command.id1 = get_vocab_id(word1);
+ command.id2 = get_vocab_id(word2);
+
+L2607:
+ ++game.turns;
+
+ /* If a turn threshold has been met, apply penalties and tell
+ * the player about it. */
+ for (int i = 0; i < NTHRESHOLDS; ++i) {
+ if (game.turns == turn_thresholds[i].threshold + 1) {
+ game.trnluz += turn_thresholds[i].point_loss;
+ speak(turn_thresholds[i].message);
+ }
+ }
+
+ if (command.verb == SAY && command.id2 != WORD_NOT_FOUND && command.id2 != WORD_EMPTY)
+ command.verb = 0;
+ if (command.verb == SAY) {
+ command.part = transitive;
+ goto Laction;
+ }
+ if (closecheck()) {
+ if (game.closed)
+ return true;
+ } else
+ lampcheck();
+
+ if (command.id1 == ENTER && (command.id2 == STREAM ||
+ command.id2 == PROMOTE_WORD(WATER))) {
+ if (LIQLOC(game.loc) == WATER) {
+ rspeak(FEET_WET);
+ } else {
+ rspeak(WHERE_QUERY);
+ }
+ goto L2012;
+ }
+ if (command.id1 == ENTER && command.id2 != WORD_NOT_FOUND && command.id2 != WORD_EMPTY) {
+ /* command.wd1 = command.wd2; */
+ /* wordclear(&command.wd2); */
+ command.id1 = command.id2;
+ command.id2 = WORD_EMPTY;
+ } else {
+ /* FIXME: Magic numbers related to vocabulary */
+ if (!((command.id1 != PROMOTE_WORD(WATER) && command.id1 != PROMOTE_WORD(OIL)) ||
+ (command.id2 != PROMOTE_WORD(PLANT) && command.id2 != PROMOTE_WORD(DOOR)))) {
+ if (AT(DEMOTE_WORD(command.id2)))
+ command.wd2 = token_to_packed("POUR");
+ }
+ if (command.id1 == PROMOTE_WORD(CAGE) && command.id2 == PROMOTE_WORD(BIRD) && HERE(CAGE) && HERE(BIRD))
+ command.wd1 = token_to_packed("CATCH");
+ }
+L2620:
+ if (wordeq(command.wd1, token_to_packed("WEST"))) {
+ ++game.iwest;
+ if (game.iwest == 10)
+ rspeak(W_IS_WEST);
+ }
+ if (wordeq(command.wd1, token_to_packed("GO")) && !wordempty(command.wd2)) {
+ if (++igo == 10)
+ rspeak(GO_UNNEEDED);
+ }
+Lookup:
+ packed_to_token(command.wd1, word1);
+ defn = get_vocab_id(word1);
+ if (defn == WORD_NOT_FOUND) {
+ /* Gee, I don't understand. */
+ if (fallback_handler(inputbuf))
+ continue;
+ sspeak(DONT_KNOW, command.raw1);
+ goto L2600;
+ }
+ /* FIXME: magic numbers related to vocabulary */
+ kmod = MOD(defn, 1000);
+ switch (defn / 1000) {
+ case 0:
+ playermove(kmod);
+ return true;
+ case 1:
+ command.part = unknown;
+ command.obj = kmod;
+ break;
+ case 2:
+ command.part = intransitive;
+ command.verb = kmod;
+ break;
+ case 3:
+ speak(specials[kmod].message);
+ goto L2012;
+ default:
+ BUG(VOCABULARY_TYPE_N_OVER_1000_NOT_BETWEEN_0_AND_3); // LCOV_EXCL_LINE
+ }
+
+Laction:
+ switch (action(&command)) {
+ case GO_TERMINATE:
+ return true;
+ case GO_MOVE:
+ playermove(NUL);
+ return true;
+ case GO_TOP:
+ continue; /* back to top of main interpreter loop */
+ case GO_CLEAROBJ:
+ goto L2012;
+ case GO_CHECKHINT:
+ goto L2600;
+ case GO_CHECKFOO:
+ goto L2607;
+ case GO_LOOKUP:
+ goto Lookup;
+ case GO_WORD2:
+ /* Get second word for analysis. */
+ command.wd1 = command.wd2;
+ strcpy(command.raw1, command.raw2);
+ wordclear(&command.wd2);
+ command.raw2[0] = '\0';
+ goto L2620;
+ case GO_UNKNOWN:
+ /* Random intransitive verbs come here. Clear obj just in case
+ * (see attack()). */
+ command.raw1[0] = toupper(command.raw1[0]);
+ sspeak(DO_WHAT, command.raw1);
+ command.obj = 0;
+ goto L2600;
+ case GO_DWARFWAKE:
+ /* Oh dear, he's disturbed the dwarves. */
+ rspeak(DWARVES_AWAKEN);
+ terminate(endgame);
+ default:
+ BUG(ACTION_RETURNED_PHASE_CODE_BEYOND_END_OF_SWITCH); // LCOV_EXCL_LINE
+ }
+ }
+}
+
+/* end */