/* * Copyright (c) 1977, 2005 by Will Crowther and Don Woods * Copyright (c) 2017 by Eric S. Raymond * SPDX-License-Identifier: BSD-2-clause */ #include #include #include #ifndef CALCULATOR #include #include #endif #include #include #include "advent.h" #include "dungeon.h" #ifdef CALCULATOR #include "calc.h" #include "style.h" #endif #define DIM(a) (sizeof(a)/sizeof(a[0])) #ifndef CALCULATOR // LCOV_EXCL_START // exclude from coverage analysis because it requires interactivity to test static void sig_handler(int signo) { if (signo == SIGINT) { if (settings.logfp != NULL) fflush(settings.logfp); } exit(EXIT_FAILURE); } // LCOV_EXCL_STOP #endif /* * MAIN PROGRAM * * Adventure (rev 2: 20 treasures) * History: Original idea & 5-treasure version (adventures) by Willie Crowther * 15-treasure version (adventure) by Don Woods, April-June 1977 * 20-treasure version (rev 2) by Don Woods, August 1978 * Errata fixed: 78/12/25 * Revived 2017 as Open Adventure. */ static bool do_command(void); static bool do_move(void); #ifndef CALCULATOR int main(int argc, char *argv[]) #else void play() #endif { int seedval; FILE *rfp = NULL; #ifndef CALCULATOR int ch; /* Options. */ #ifndef ADVENT_NOSAVE const char* opts = "l:or:"; const char* usage = "Usage: %s [-l logfilename] [-o] [-r restorefilename]\n"; #else const char* opts = "l:o"; const char* usage = "Usage: %s [-l logfilename] [-o]\n"; #endif while ((ch = getopt(argc, argv, opts)) != EOF) { switch (ch) { case 'l': settings.logfp = fopen(optarg, "w"); if (settings.logfp == NULL) fprintf(stderr, "advent: can't open logfile %s for write\n", optarg); signal(SIGINT, sig_handler); break; case 'o': settings.oldstyle = true; settings.prompt = false; break; #ifndef ADVENT_NOSAVE case 'r': rfp = fopen(optarg, "r"); if (rfp == NULL) fprintf(stderr, "advent: can't open save file %s for read\n", optarg); break; #endif default: fprintf(stderr, usage, argv[0]); fprintf(stderr, " -l create a log file of your game named as specified'\n"); fprintf(stderr, " -o 'oldstyle' (no prompt, no command editing, displays 'Initialising...')\n"); #ifndef ADVENT_NOSAVE fprintf(stderr, " -r restore from specified saved game file\n"); #endif exit(EXIT_FAILURE); break; } } #endif /* Initialize game variables */ seedval = initialise(); #ifndef ADVENT_NOSAVE #ifndef CALCULATOR if (!rfp) { #else if (!save_file_name || !(rfp = fopen(save_file_name, "r"))) { #endif game.novice = yes(get_arbitrary_message_index(WELCOME_YOU), get_arbitrary_message_index(CAVE_NEARBY), get_arbitrary_message_index(NO_MESSAGE)); if (game.novice) game.limit = NOVICELIMIT; } else { restore(rfp); #ifdef CALCULATOR if (!save_validated) exit_main(1); #endif game.newloc = game.loc; } #else game.novice = yes(get_arbitrary_message_index(WELCOME_YOU), get_arbitrary_message_index(CAVE_NEARBY), get_arbitrary_message_index(NO_MESSAGE)); if (game.novice) game.limit = NOVICELIMIT; #endif #ifndef CALCULATOR if (settings.logfp) fprintf(settings.logfp, "seed %d\n", seedval); #endif /* interpret commands until EOF or interrupt */ for (;;) { // if we're supposed to move, move if (!do_move()) continue; // get command if (!do_command()) break; } /* show score and exit */ terminate(quitgame); } /* Check if this loc is eligible for any hints. If been here int * enough, display. Ignore "HINTS" < 4 (special stuff, see database * notes). */ static void checkhints(void) { int hint, i; const hint_t* cur_hint; if (conditions[game.loc] >= game.conds) { for (hint = 0; hint < NHINTS; hint++) { if (game.hinted[hint]) continue; if (!CNDBIT(game.loc, hint + 1 + COND_HBASE)) game.hintlc[hint] = -1; ++game.hintlc[hint]; /* Come here if he's been int enough at required loc(s) for some * unused hint. */ cur_hint = get_hint(hint); if (game.hintlc[hint] >= cur_hint->turns) { switch (hint) { case 0: /* cave */ if (game.prop[GRATE] == GRATE_CLOSED && !here(KEYS)) break; game.hintlc[hint] = 0; return; case 1: /* bird */ if (game.place[BIRD] == game.loc && TOTING(ROD) && game.oldobj == BIRD) break; return; case 2: /* snake */ if (here(SNAKE) && !here(BIRD)) break; game.hintlc[hint] = 0; return; case 3: /* maze */ if (game.atloc[game.loc] == NO_OBJECT && game.atloc[game.oldloc] == NO_OBJECT && game.atloc[game.oldlc2] == NO_OBJECT && game.holdng > 1) break; game.hintlc[hint] = 0; return; case 4: /* dark */ if (game.prop[EMERALD] != STATE_NOTFOUND && game.prop[PYRAMID] == STATE_NOTFOUND) break; game.hintlc[hint] = 0; return; case 5: /* witt */ break; case 6: /* urn */ if (game.dflag == 0) break; game.hintlc[hint] = 0; return; case 7: /* woods */ if (game.atloc[game.loc] == NO_OBJECT && game.atloc[game.oldloc] == NO_OBJECT && game.atloc[game.oldlc2] == NO_OBJECT) break; return; case 8: /* ogre */ i = atdwrf(game.loc); if (i < 0) { game.hintlc[hint] = 0; return; } if (here(OGRE) && i == 0) break; return; case 9: /* jade */ if (game.tally == 1 && game.prop[JADE] < 0) break; game.hintlc[hint] = 0; return; default: // LCOV_EXCL_LINE BUG(HINT_NUMBER_EXCEEDS_GOTO_LIST); // LCOV_EXCL_LINE } /* Fall through to hint display */ game.hintlc[hint] = 0; if (!yes(cur_hint->question, get_arbitrary_message_index(NO_MESSAGE), get_arbitrary_message_index(OK_MAN))) return; rspeak(HINT_COST, cur_hint->penalty, cur_hint->penalty); game.hinted[hint] = yes(get_arbitrary_message_index(WANT_HINT), cur_hint->hint, get_arbitrary_message_index(OK_MAN)); if (game.hinted[hint] && game.limit > WARNTIME) game.limit += WARNTIME * cur_hint->penalty; } } } } static bool spotted_by_pirate(int i) { int treasure, snarfed; bool movechest = false, robplayer = false; if (i != PIRATE) return false; /* The pirate's spotted him. Pirate leaves him alone once we've * found chest. K counts if a treasure is here. If not, and * tally=1 for an unseen chest, let the pirate be spotted. Note * that game.place[CHEST] = LOC_NOWHERE might mean that he's thrown * it to the troll, but in that case he's seen the chest * (game.prop[CHEST] == STATE_FOUND). */ if (game.loc == game.chloc || game.prop[CHEST] != STATE_NOTFOUND) return true; snarfed = 0; for (treasure = 1; treasure <= NOBJECTS; treasure++) { if (!get_object(treasure)->is_treasure) continue; /* Pirate won't take pyramid from plover room or dark * room (too easy!). */ if (treasure == PYRAMID && (game.loc == get_object(PYRAMID)->plac || game.loc == get_object(EMERALD)->plac)) { continue; } if (TOTING(treasure) || here(treasure)) ++snarfed; if (TOTING(treasure)) { movechest = true; robplayer = true; } } /* Force chest placement before player finds last treasure */ if (game.tally == 1 && snarfed == 0 && game.place[CHEST] == LOC_NOWHERE && here(LAMP) && game.prop[LAMP] == LAMP_BRIGHT) { rspeak(PIRATE_SPOTTED); movechest = true; } /* Do things in this order (chest move before robbery) so chest is listed * last at the maze location. */ if (movechest) { move(CHEST, game.chloc); move(MESSAG, game.chloc2); game.dloc[PIRATE] = game.chloc; game.odloc[PIRATE] = game.chloc; game.dseen[PIRATE] = false; } else { /* You might get a hint of the pirate's presence even if the * chest doesn't move... */ if (game.odloc[PIRATE] != game.dloc[PIRATE] && PCT(20)) rspeak(PIRATE_RUSTLES); } if (robplayer) { rspeak(PIRATE_POUNCES); for (treasure = 1; treasure <= NOBJECTS; treasure++) { if (!get_object(treasure)->is_treasure) continue; if (!(treasure == PYRAMID && (game.loc == get_object(PYRAMID)->plac || game.loc == get_object(EMERALD)->plac))) { if (at(treasure) && game.fixed[treasure] == IS_FREE) carry(treasure, game.loc); if (TOTING(treasure)) drop(treasure, game.chloc); } } } return true; } static bool dwarfmove(void) /* Dwarves move. Return true if player survives, false if he dies. */ { int kk, stick, attack; int i, j; const travelop_t* travelop; loc_t tk[21]; /* Dwarf stuff. See earlier comments for description of * variables. Remember sixth dwarf is pirate and is thus * very different except for motion rules. */ /* First off, don't let the dwarves follow him into a pit or a * wall. Activate the whole mess the first time he gets as far * as the Hall of Mists (what indeep() tests). If game.newloc * is forbidden to pirate (in particular, if it's beyond the * troll bridge), bypass dwarf stuff. That way pirate can't * steal return toll, and dwarves can't meet the bear. Also * means dwarves won't follow him into dead end in maze, but * c'est la vie. They'll wait for him outside the dead end. */ if (game.loc == LOC_NOWHERE || FORCED(game.loc) || CNDBIT(game.newloc, COND_NOARRR)) return true; /* Dwarf activity level ratchets up */ if (game.dflag == 0) { if (indeep(game.loc)) game.dflag = 1; return true; } /* When we encounter the first dwarf, we kill 0, 1, or 2 of * the 5 dwarves. If any of the survivors is at game.loc, * replace him with the alternate. */ if (game.dflag == 1) { if (!indeep(game.loc) || (PCT(95) && (!CNDBIT(game.loc, COND_NOBACK) || PCT(85)))) return true; game.dflag = 2; for (i = 1; i <= 2; i++) { j = 1 + randrange(NDWARVES - 1); if (PCT(50)) game.dloc[j] = 0; } /* Alternate initial loc for dwarf, in case one of them * starts out on top of the adventurer. */ for (i = 1; i <= NDWARVES - 1; i++) { if (game.dloc[i] == game.loc) game.dloc[i] = DALTLC; // game.odloc[i] = game.dloc[i]; } rspeak(DWARF_RAN); drop(AXE, game.loc); return true; } /* Things are in full swing. Move each dwarf at random, * except if he's seen us he sticks with us. Dwarves stay * deep inside. If wandering at random, they don't back up * unless there's no alternative. If they don't have to * move, they attack. And, of course, dead dwarves don't do * much of anything. */ game.dtotal = 0; attack = 0; stick = 0; for (i = 1; i <= NDWARVES; i++) { if (game.dloc[i] == 0) continue; /* Fill tk array with all the places this dwarf might go. */ /*unsigned int */j = 1; kk = get_tkey(game.dloc[i]); if (kk != 0) do { travelop = get_travelop(kk++); game.newloc = travelop->destval; /* Have we avoided a dwarf encounter? */ if (travelop->desttype != dest_goto) continue; else if (!indeep(game.newloc)) continue; else if (game.newloc == game.odloc[i]) continue; else if (j > 1 && game.newloc == tk[j - 1]) continue; else if (j >= DIM(tk) - 1) /* This can't actually happen. */ continue; // LCOV_EXCL_LINE else if (game.newloc == game.dloc[i]) continue; else if (FORCED(game.newloc)) continue; else if (i == PIRATE && CNDBIT(game.newloc, COND_NOARRR)) continue; else if (travelop->nodwarves) continue; tk[j++] = game.newloc; } while (!travelop->stop); tk[j] = game.odloc[i]; if (j >= 2) --j; j = 1 + randrange(j); game.odloc[i] = game.dloc[i]; game.dloc[i] = tk[j]; game.dseen[i] = (game.dseen[i] && indeep(game.loc)) || (game.dloc[i] == game.loc || game.odloc[i] == game.loc); if (!game.dseen[i]) continue; game.dloc[i] = game.loc; if (spotted_by_pirate(i)) continue; /* This threatening little dwarf is in the room with him! */ ++game.dtotal; if (game.odloc[i] == game.dloc[i]) { ++attack; if (game.knfloc >= 0) game.knfloc = game.loc; if (randrange(1000) < 95 * (game.dflag - 2)) ++stick; } } /* Now we know what's happening. Let's tell the poor sucker about it. */ if (game.dtotal == 0) return true; rspeak(game.dtotal == 1 ? DWARF_SINGLE : DWARF_PACK, game.dtotal); if (attack == 0) return true; if (game.dflag == 2) game.dflag = 3; if (attack > 1) { rspeak(THROWN_KNIVES, attack); rspeak(stick > 1 ? MULTIPLE_HITS : (stick == 1 ? ONE_HIT : NONE_HIT), stick); } else { rspeak(KNIFE_THROWN); rspeak(stick ? GETS_YOU : MISSES_YOU); } if (stick == 0) return true; game.oldlc2 = game.loc; return false; } /* "You're dead, Jim." * * If the current loc is zero, it means the clown got himself killed. * We'll allow this maxdie times. NDEATHS is automatically set based * on the number of snide messages available. Each death results in * a message (obituaries[n]) which offers reincarnation; if accepted, * this results in message obituaries[0], obituaries[2], etc. The * last time, if he wants another chance, he gets a snide remark as * we exit. When reincarnated, all objects being carried get dropped * at game.oldlc2 (presumably the last place prior to being killed) * without change of props. The loop runs backwards to assure that * the bird is dropped before the cage. (This kluge could be changed * once we're sure all references to bird and cage are done by * keywords.) The lamp is a special case (it wouldn't do to leave it * in the cave). It is turned off and left outside the building (only * if he was carrying it, of course). He himself is left inside the * building (and heaven help him if he tries to xyzzy back into the * cave without the lamp!). game.oldloc is zapped so he can't just * "retreat". */ static void croak(void) /* Okay, he's dead. Let's get on with it. */ { int i, j; const compressed_string_index_t query = get_obituary(game.numdie)->query; const compressed_string_index_t yes_response = get_obituary(game.numdie)->yes_response; ++game.numdie; if (game.closng) { /* He died during closing time. No resurrection. Tally up a * death and exit. */ rspeak(DEATH_CLOSING); terminate(endgame); } else if (!yes(query, yes_response, get_arbitrary_message_index(OK_MAN)) || game.numdie == NDEATHS) { /* Player is asked if he wants to try again. If not, or if * he's already used all of his lives, we end the game */ terminate(endgame); } else { /* If player wishes to continue, we empty the liquids in the * user's inventory, turn off the lamp, and drop all items * where he died. */ game.place[WATER] = game.place[OIL] = LOC_NOWHERE; if (TOTING(LAMP)) game.prop[LAMP] = LAMP_DARK; for (j = 1; j <= NOBJECTS; j++) { i = NOBJECTS + 1 - j; if (TOTING(i)) { /* Always leave lamp where it's accessible aboveground */ drop(i, (i == LAMP) ? LOC_START : game.oldlc2); } } game.oldloc = game.loc = game.newloc = LOC_BUILDING; } } static void describe_location(void) /* Describe the location to the user */ { compressed_string_index_t msg = get_location(game.loc)->description.small; if (MOD(game.abbrev[game.loc], game.abbnum) == 0 || msg == NO_MESSAGE) msg = get_location(game.loc)->description.big; if (!FORCED(game.loc) && dark(game.loc)) { msg = get_arbitrary_message_index(PITCH_DARK); } if (TOTING(BEAR)) rspeak(TAME_BEAR); speak(msg); if (game.loc == LOC_Y2 && PCT(25) && !game.closng) rspeak(SAYS_PLUGH); } static bool traveleq(int a, int b) /* Are two travel entries equal for purposes of skip after failed condition? */ { return (get_travelop(a)->condtype == get_travelop(b)->condtype) && (get_travelop(a)->condarg1 == get_travelop(b)->condarg1) && (get_travelop(a)->condarg2 == get_travelop(b)->condarg2) && (get_travelop(a)->desttype == get_travelop(b)->desttype) && (get_travelop(a)->destval == get_travelop(b)->destval); } /* Given the current location in "game.loc", and a motion verb number in * "motion", put the new location in "game.newloc". The current loc is saved * in "game.oldloc" in case he wants to retreat. The current * game.oldloc is saved in game.oldlc2, in case he dies. (if he * does, game.newloc will be limbo, and game.oldloc will be what killed * him, so we need game.oldlc2, which is the last place he was * safe.) */ static void playermove(int motion) { const travelop_t* travelop; #ifndef CALCULATOR enum condtype_t condtype; enum desttype_t desttype; #else uint8_t condtype, desttype; #endif uint8_t condarg1, condarg2; unsigned int te_tmp; int scratchloc; unsigned int travel_entry = get_tkey(game.loc); game.newloc = game.loc; if (travel_entry == 0) BUG(LOCATION_HAS_NO_TRAVEL_ENTRIES); // LCOV_EXCL_LINE if (motion == NUL) return; else if (motion == BACK) { /* Handle "go back". Look for verb which goes from game.loc to * game.oldloc, or to game.oldlc2 If game.oldloc has forced-motion. * te_tmp saves entry -> forced loc -> previous loc. */ motion = game.oldloc; if (FORCED(motion)) motion = game.oldlc2; game.oldlc2 = game.oldloc; game.oldloc = game.loc; if (CNDBIT(game.loc, COND_NOBACK)) { rspeak(TWIST_TURN); return; } if (motion == game.loc) { rspeak(FORGOT_PATH); return; } te_tmp = 0; for (;;) { travelop = get_travelop(travel_entry); desttype = travelop->desttype; scratchloc = travelop->destval; if (desttype != dest_goto || scratchloc != motion) { if (desttype == dest_goto) { if (FORCED(scratchloc) && get_travelop(get_tkey(scratchloc))->destval == motion) te_tmp = travel_entry; } if (!travelop->stop) { ++travel_entry; /* go to next travel entry for this location */ continue; } /* we've reached the end of travel entries for game.loc */ travel_entry = te_tmp; if (travel_entry == 0) { rspeak(NOT_CONNECTED); return; } } motion = get_travelop(travel_entry)->motion; travel_entry = get_tkey(game.loc); break; /* fall through to ordinary travel */ } } else if (motion == LOOK) { /* Look. Can't give more detail. Pretend it wasn't dark * (though it may now be dark) so he won't fall into a * pit while staring into the gloom. */ if (game.detail < 3) rspeak(NO_MORE_DETAIL); ++game.detail; game.wzdark = false; game.abbrev[game.loc] = 0; return; } else if (motion == CAVE) { /* Cave. Different messages depending on whether above ground. */ rspeak((outsid(game.loc) && game.loc != LOC_GRATE) ? FOLLOW_STREAM : NEED_DETAIL); return; } else { /* none of the specials */ game.oldlc2 = game.oldloc; game.oldloc = game.loc; } /* Look for a way to fulfil the motion verb passed in - travel_entry indexes * the beginning of the motion entries for here (game.loc). */ for (;;) { travelop = get_travelop(travel_entry); if (T_TERMINATE(travelop) || travelop->motion == motion) break; if (travelop->stop) { /* Couldn't find an entry matching the motion word passed * in. Various messages depending on word given. */ switch (motion) { case EAST: case WEST: case SOUTH: case NORTH: case NE: case NW: case SW: case SE: case UP: case DOWN: rspeak(BAD_DIRECTION); break; case FORWARD: case LEFT: case RIGHT: rspeak(UNSURE_FACING); break; case OUTSIDE: case INSIDE: rspeak(NO_INOUT_HERE); break; case XYZZY: case PLUGH: rspeak(NOTHING_HAPPENS); break; case CRAWL: rspeak(WHICH_WAY); break; default: rspeak(CANT_APPLY); } return; } ++travel_entry; } /* (ESR) We've found a destination that goes with the motion verb. * Next we need to check any conditional(s) on this destination, and * possibly on following entries. */ do { for (;;) { /* L12 loop */ for (;;) { travelop = get_travelop(travel_entry); condtype = travelop->condtype; condarg1 = travelop->condarg1; condarg2 = travelop->condarg2; if (condtype < cond_not) { /* YAML N and [pct N] conditionals */ if (condtype == cond_goto || condtype == cond_pct) { if (condarg1 == 0 || PCT(condarg1)) break; /* else fall through */ } /* YAML [with OBJ] clause */ else if (TOTING(condarg1) || (condtype == cond_with && at(condarg1))) break; /* else fall through to check [not OBJ STATE] */ } else if (game.prop[condarg1] != condarg2) break; /* We arrive here on conditional failure. * Skip to next non-matching destination */ te_tmp = travel_entry; do { if (get_travelop(te_tmp)->stop) BUG(CONDITIONAL_TRAVEL_ENTRY_WITH_NO_ALTERATION); // LCOV_EXCL_LINE ++te_tmp; } while (traveleq(travel_entry, te_tmp)); travel_entry = te_tmp; } /* Found an eligible rule, now execute it */ travelop = get_travelop(travel_entry); desttype = travelop->desttype; game.newloc = travelop->destval; if (desttype == dest_goto) return; if (desttype == dest_speak) { /* Execute a speak rule */ rspeak(game.newloc); game.newloc = game.loc; return; } else { switch (game.newloc) { case 1: /* Special travel 1. Plover-alcove passage. Can carry only * emerald. Note: travel table must include "useless" * entries going through passage, which can never be used * for actual motion, but can be spotted by "go back". */ game.newloc = (game.loc == LOC_PLOVER) ? LOC_ALCOVE : LOC_PLOVER; if (game.holdng > 1 || (game.holdng == 1 && !TOTING(EMERALD))) { game.newloc = game.loc; rspeak(MUST_DROP); } return; case 2: /* Special travel 2. Plover transport. Drop the * emerald (only use special travel if toting * it), so he's forced to use the plover-passage * to get it out. Having dropped it, go back and * pretend he wasn't carrying it after all. */ drop(EMERALD, game.loc); { te_tmp = travel_entry; do { if (get_travelop(te_tmp)->stop) BUG(CONDITIONAL_TRAVEL_ENTRY_WITH_NO_ALTERATION); // LCOV_EXCL_LINE ++te_tmp; } while (traveleq(travel_entry, te_tmp)); travel_entry = te_tmp; } continue; /* goto L12 */ case 3: /* Special travel 3. Troll bridge. Must be done * only as special motion so that dwarves won't * wander across and encounter the bear. (They * won't follow the player there because that * region is forbidden to the pirate.) If * game.prop[TROLL]=TROLL_PAIDONCE, he's crossed * since paying, so step out and block him. * (standard travel entries check for * game.prop[TROLL]=TROLL_UNPAID.) Special stuff * for bear. */ if (game.prop[TROLL] == TROLL_PAIDONCE) { pspeak(TROLL, look, true, TROLL_PAIDONCE); game.prop[TROLL] = TROLL_UNPAID; DESTROY(TROLL2); move(TROLL2 + NOBJECTS, IS_FREE); move(TROLL, get_object(TROLL)->plac); move(TROLL + NOBJECTS, get_object(TROLL)->fixd); juggle(CHASM); game.newloc = game.loc; return; } else { game.newloc = get_object(TROLL)->plac + get_object(TROLL)->fixd - game.loc; if (game.prop[TROLL] == TROLL_UNPAID) game.prop[TROLL] = TROLL_PAIDONCE; if (!TOTING(BEAR)) return; state_change(CHASM, BRIDGE_WRECKED); game.prop[TROLL] = TROLL_GONE; drop(BEAR, game.newloc); game.fixed[BEAR] = IS_FIXED; game.prop[BEAR] = BEAR_DEAD; game.oldlc2 = game.newloc; croak(); return; } default: // LCOV_EXCL_LINE BUG(SPECIAL_TRAVEL_500_GT_L_GT_300_EXCEEDS_GOTO_LIST); // LCOV_EXCL_LINE } } break; /* Leave L12 loop */ } } while (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. Even after it goes * out, he can explore outside for a while if desired. */ if (game.limit <= WARNTIME) { if (here(BATTERY) && game.prop[BATTERY] == FRESH_BATTERIES && here(LAMP)) { rspeak(REPLACE_BATTERIES); game.prop[BATTERY] = DEAD_BATTERIES; #ifdef __unused__ /* This code from the original game seems to have been faulty. * No tests ever passed the guard, and with the guard removed * the game hangs when the lamp limit is reached. */ if (TOTING(BATTERY)) drop(BATTERY, game.loc); #endif game.limit += BATTERYLIFE; game.lmwarn = false; } else if (!game.lmwarn && here(LAMP)) { game.lmwarn = true; if (game.prop[BATTERY] == DEAD_BATTERIES) rspeak(MISSING_BATTERIES); else if (game.place[BATTERY] == LOC_NOWHERE) rspeak(LAMP_DIM); else rspeak(GET_BATTERIES); } } if (game.limit == 0) { game.limit = -1; game.prop[LAMP] = LAMP_DARK; if (here(LAMP)) rspeak(LAMP_OUT); } } 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 ` * 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. */ { int i; const turn_threshold_t* threshold; /* If a turn threshold has been met, apply penalties and tell * the player about it. */ for (i = 0; i < NTHRESHOLDS; ++i) { threshold = get_turn_threshold(i); if (game.turns == threshold->threshold + 1) { game.trnluz += threshold->point_loss; speak(threshold->message); } } /* 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 (i = 1; i <= NDWARVES; i++) { game.dseen[i] = false; game.dloc[i] = LOC_NOWHERE; } DESTROY(TROLL); move(TROLL + NOBJECTS, IS_FREE); move(TROLL2, get_object(TROLL)->plac); move(TROLL2 + NOBJECTS, get_object(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 game.closed; } 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 (i = 1; i <= NOBJECTS; i++) { if (TOTING(i)) DESTROY(i); } rspeak(CAVE_CLOSED); game.closed = true; return game.closed; } lampcheck(); return false; } 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. */ { int i, kk; if (!dark(game.loc)) { ++game.abbrev[game.loc]; for (i = game.atloc[game.loc]; i != 0; i = game.link[i]) { obj_t 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). */ } kk = game.prop[obj]; if (obj == STEPS) kk = (game.loc == game.fixed[STEPS]) ? STEPS_UP : STEPS_DOWN; pspeak(obj, look, true, kk); } } } bool preprocess_command(command_t *command) /* Pre-processes a command input to see if we need to tease out a few specific cases: * - "enter water" or "enter stream": * wierd specific case that gets the user wet, and then kicks us back to get another command * - : * Irregular form of input, but should be allowed. We switch back to form for * furtherprocessing. * - "grate": * If in location with grate, we move to that grate. If we're in a number of other places, * we move to the entrance. * - "water plant", "oil plant", "water door", "oil door": * Change to "pour water" or "pour oil" based on context * - "cage bird": * If bird is present, we change to "carry bird" * * Returns true if pre-processing is complete, and we're ready to move to the primary command * processing, false otherwise. */ { if (command->word[0].type == MOTION && command->word[0].id == ENTER && (command->word[1].id == STREAM || command->word[1].id == WATER)) { if (liqloc(game.loc) == WATER) rspeak(FEET_WET); else rspeak(WHERE_QUERY); } else { if (command->word[0].type == OBJECT) { /* From OV to VO form */ if (command->word[1].type == ACTION) { command_word_t stage = command->word[0]; command->word[0] = command->word[1]; command->word[1] = stage; } if (command->word[0].id == GRATE) { command->word[0].type = MOTION; if (game.loc == LOC_START || game.loc == LOC_VALLEY || game.loc == LOC_SLIT) { command->word[0].id = DEPRESSION; } if (game.loc == LOC_COBBLE || game.loc == LOC_DEBRIS || game.loc == LOC_AWKWARD || game.loc == LOC_BIRD || game.loc == LOC_PITTOP) { command->word[0].id = ENTRANCE; } } if ((command->word[0].id == WATER || command->word[0].id == OIL) && (command->word[1].id == PLANT || command->word[1].id == DOOR)) { if (at(command->word[1].id)) { command->word[1] = command->word[0]; command->word[0].id = POUR; command->word[0].type = ACTION; strncpy(command->word[0].raw, "pour", LINESIZE - 1); } } if (command->word[0].id == CAGE && command->word[1].id == BIRD && here(CAGE) && here(BIRD)) { command->word[0].id = CARRY; command->word[0].type = ACTION; } } /* If no word type is given for the first word, we assume it's a motion. */ if(command->word[0].type == NO_WORD_TYPE) command->word[0].type = MOTION; command->state = PREPROCESSED; return true; } return false; } static bool do_move(void) /* Actually execute the move to the new location and dwarf movement */ { size_t i; /* 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 (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(); if (game.loc == LOC_NOWHERE) croak(); /* The easiest way to get killed is to fall into a pit in * pitch darkness. */ if (!FORCED(game.loc) && dark(game.loc) && game.wzdark && PCT(35)) { // FIXME: magic number rspeak(PIT_FALL); game.oldlc2 = game.loc; croak(); return false; } return true; } static bool do_command() /* Get and execute a command */ { static command_t command; size_t i; clear_command(&command); /* Describe the current location and (maybe) get next command. */ while (command.state != EXECUTED) { describe_location(); if (FORCED(game.loc)) { playermove(HERE); return true; } listobjects(); /* Command not yet given; keep getting commands from user * until valid command is both given and executed. */ clear_command(&command); while (command.state <= GIVEN) { if (game.closed) { /* 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.prop[OYSTER] < 0 && TOTING(OYSTER)) pspeak(OYSTER, look, true, 1); for (i = 1; i <= NOBJECTS; i++) { if (TOTING(i) && game.prop[i] < 0) game.prop[i] = STASHED(i); } } /* Check to see if the room is dark. If the knife is here, * and it's dark, the knife permanently disappears */ game.wzdark = dark(game.loc); if (game.knfloc != LOC_NOWHERE && game.knfloc != game.loc) game.knfloc = LOC_NOWHERE; /* Check some for hints, get input from user, increment * turn, and pre-process commands. Keep going until * pre-processing is done. */ while ( command.state < PREPROCESSED ) { checkhints(); /* Get command input from user */ if (!get_command_input(&command)) return false; ++game.turns; preprocess_command(&command); } /* check if game is closed, and exit if it is */ if (closecheck() ) return true; /* loop until all words in command are procesed */ while (command.state == PREPROCESSED ) { command.state = PROCESSING; if (command.word[0].id == WORD_NOT_FOUND) { /* Gee, I don't understand. */ sspeak(DONT_KNOW, command.word[0].raw); clear_command(&command); continue; } /* Give user hints of shortcuts */ if (strncasecmp(command.word[0].raw, "west", sizeof("west")) == 0) { if (++game.iwest == 10) rspeak(W_IS_WEST); } if (strncasecmp(command.word[0].raw, "go", sizeof("go")) == 0 && command.word[1].id != WORD_EMPTY) { if (++game.igo == 10) rspeak(GO_UNNEEDED); } switch (command.word[0].type) { case MOTION: playermove(command.word[0].id); command.state = EXECUTED; continue; case OBJECT: command.part = unknown; command.obj = command.word[0].id; break; case ACTION: if (command.word[1].type == NUMERIC) command.part = transitive; else command.part = intransitive; command.verb = command.word[0].id; break; case NUMERIC: if (!settings.oldstyle) { sspeak(DONT_KNOW, command.word[0].raw); clear_command(&command); continue; } break;// LCOV_EXCL_LINE default: // LCOV_EXCL_LINE BUG(VOCABULARY_TYPE_N_OVER_1000_NOT_BETWEEN_0_AND_3); // LCOV_EXCL_LINE } switch (action(&command)) { case GO_TERMINATE: command.state = EXECUTED; break; case GO_MOVE: playermove(NUL); command.state = EXECUTED; break; case GO_WORD2: #ifdef GDEBUG printf("Word shift\n"); #endif /* GDEBUG */ /* Get second word for analysis. */ command.word[0] = command.word[1]; command.word[1] = empty_command_word; command.state = PREPROCESSED; break; case GO_UNKNOWN: /* Random intransitive verbs come here. Clear obj just in case * (see attack()). */ command.word[0].raw[0] = toupper(command.word[0].raw[0]); sspeak(DO_WHAT, command.word[0].raw); command.obj = NO_OBJECT; /* object cleared; we need to go back to the preprocessing step */ command.state = GIVEN; break; case GO_CHECKHINT: // FIXME: re-name to be more contextual; this was previously a label command.state = GIVEN; break; case GO_DWARFWAKE: /* Oh dear, he's disturbed the dwarves. */ rspeak(DWARVES_AWAKEN); terminate(endgame); case GO_CLEAROBJ: // FIXME: re-name to be more contextual; this was previously a label clear_command(&command); break; case GO_TOP: // FIXME: re-name to be more contextual; this was previously a label break; default: // LCOV_EXCL_LINE BUG(ACTION_RETURNED_PHASE_CODE_BEYOND_END_OF_SWITCH); // LCOV_EXCL_LINE } } /* while command has nob been fully processed */ } /* while command is not yet given */ } /* while command is not executed */ /* command completely executed; we return true. */ return true; } /* end */