+
+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. */
+{
+ 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] = 0;
+ for (int i = 1; i <= NDWARVES; i++) {
+ game.dseen[i] = false;
+ game.dloc[i] = 0;
+ }
+ move(TROLL, 0);
+ move(TROLL + NOBJECTS, 0);
+ move(TROLL2, objects[TROLL].plac);
+ move(TROLL2 + NOBJECTS, objects[TROLL].fixd);
+ juggle(CHASM);
+ if (game.prop[BEAR] != 3)DESTROY(BEAR);
+ game.prop[CHAIN] = 0;
+ game.fixed[CHAIN] = 0;
+ game.prop[AXE] = 0;
+ game.fixed[AXE] = 0;
+ 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, 0);
+ game.prop[OYSTER] = put(OYSTER, LOC_NE, 0);
+ game.prop[LAMP] = put(LAMP, LOC_NE, 0);
+ game.prop[ROD] = put(ROD, LOC_NE, 0);
+ 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, 1);
+ game.prop[BIRD] = put(BIRD, LOC_SW, 1);
+ game.prop[CAGE] = put(CAGE, LOC_SW, 0);
+ game.prop[ROD2] = put(ROD2, LOC_SW, 0);
+ game.prop[PILLOW] = put(PILLOW, LOC_SW, 0);
+
+ game.prop[MIRROR] = put(MIRROR, LOC_NE, 0);
+ 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 1 (dragon on it) till dragon is killed.
+ * Similarly for chain; game.prop is initially 1 (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] = 0;
+ if (obj == RUG || obj == CHAIN)
+ game.prop[obj] = 1;
+ --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 && game.loc == game.fixed[STEPS])
+ kk = 1;
+ pspeak(obj, look, kk);
+ }
+ }
+}
+
+static bool do_command(FILE *cmdin)
+/* Get and execute a command */
+{
+ long V1, V2;
+ 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)) {
+ if (playermove(command.verb, 1))
+ return true;
+ else
+ continue; /* back to top of main interpreter loop */
+ }
+ if (game.loc == LOC_Y2 && PCT(25) && !game.closng)
+ rspeak(SAYS_PLUGH);
+
+ listobjects();
+
+L2012:
+ command.verb = 0;
+ game.oldobj = command.obj;
+ command.obj = 0;
+
+L2600:
+ checkhints();
+
+ /* If closing time, check for any objects being toted with
+ * game.prop < 0 and set the prop to -1-game.prop. This way
+ * objects won't be described until they've been picked up
+ * and put down separate from their respective piles. Don't
+ * tick game.clock1 unless well into cave (and not at Y2). */
+ if (game.closed) {
+ if (game.prop[OYSTER] < 0 && TOTING(OYSTER))
+ pspeak(OYSTER, look, 1);
+ for (size_t i = 1; i <= NOBJECTS; i++) {
+ if (TOTING(i) && game.prop[i] < 0)
+ game.prop[i] = -1 - game.prop[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 */
+ if (!GETIN(cmdin, &command.wd1, &command.wd1x, &command.wd2, &command.wd2x))
+ return false;
+
+ /* Every input, check "game.foobar" flag. If zero, nothing's
+ * going on. If pos, make neg. If neg, he skipped a word,
+ * so make it zero. */
+L2607:
+ game.foobar = (game.foobar > 0 ? -game.foobar : 0);
+ ++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.wd2 > 0)
+ command.verb = 0;
+ if (command.verb == SAY) {
+ command.part = transitive;
+ goto Laction;
+ }
+ if (closecheck()) {
+ if (game.closed)
+ return true;
+ } else
+ lampcheck();
+
+ V1 = vocab(command.wd1, -1);
+ V2 = vocab(command.wd2, -1);
+ if (V1 == ENTER && (V2 == STREAM || V2 == 1000 + WATER)) {
+ if (LIQLOC(game.loc) == WATER) {
+ rspeak(FEET_WET);
+ } else {
+ rspeak(WHERE_QUERY);
+ }
+ goto L2012;
+ }
+ if (V1 == ENTER && command.wd2 > 0) {
+ command.wd1 = command.wd2;
+ command.wd1x = command.wd2x;
+ wordclear(&command.wd2);
+ } else {
+ /* FIXME: Magic numbers */
+ if (!((V1 != 1000 + WATER && V1 != 1000 + OIL) ||
+ (V2 != 1000 + PLANT && V2 != 1000 + DOOR))) {
+ if (AT(V2 - 1000))
+ command.wd2 = MAKEWD(WORD_POUR);
+ }
+ if (V1 == 1000 + CAGE && V2 == 1000 + BIRD && HERE(CAGE) && HERE(BIRD))
+ command.wd1 = MAKEWD(WORD_CATCH);
+ }
+L2620:
+ if (wordeq(command.wd1, MAKEWD(WORD_WEST))) {
+ ++game.iwest;
+ if (game.iwest == 10)
+ rspeak(W_IS_WEST);
+ }
+ if (wordeq(command.wd1, MAKEWD(WORD_GO)) && !wordempty(command.wd2)) {
+ if (++igo == 10)
+ rspeak(GO_UNNEEDED);
+ }
+Lookup:
+ defn = vocab(command.wd1, -1);
+ if (defn == -1) {
+ /* Gee, I don't understand. */
+ if (fallback_handler(rawbuf))
+ continue;
+ rspeak(DONT_KNOW, command.wd1, command.wd1x);
+ goto L2600;
+ }
+ kmod = MOD(defn, 1000);
+ switch (defn / 1000) {
+ case 0:
+ if (playermove(command.verb, kmod))
+ return true;
+ else
+ continue; /* back to top of main interpreter loop */
+ case 1:
+ command.part = unknown;
+ command.obj = kmod;
+ break;
+ case 2:
+ command.part = intransitive;
+ command.verb = kmod;
+ break;
+ case 3:
+ rspeak(kmod);
+ goto L2012;
+ default:
+ BUG(VOCABULARY_TYPE_N_OVER_1000_NOT_BETWEEN_0_AND_3);
+ }
+
+Laction:
+ switch (action(cmdin, &command)) {
+ case GO_TERMINATE:
+ return true;
+ case GO_MOVE:
+ playermove(command.verb, 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;
+ command.wd1x = command.wd2x;
+ wordclear(&command.wd2);
+ goto L2620;
+ case GO_UNKNOWN:
+ /* Random intransitive verbs come here. Clear obj just in case
+ * (see attack()). */
+ rspeak(DO_WHAT, command.wd1, command.wd1x);
+ 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);
+ }
+ }
+}
+
+/* end */