-#include <stdio.h>
+/*
+ * Dungeon types and macros.
+ *
+ * SPDX-FileCopyrightText: (C) 1977, 2005 by Will Crowther and Don Woods
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+#include <inttypes.h>
+#include <stdarg.h>
#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
-#include "common.h"
+#include "dungeon.h"
-#define LINESIZE 100
-#define NDWARVES 6
-#define PIRATE NDWARVES /* must be NDWARVES-1 when zero-origin */
-#define DALTLC 18 /* alternate dwarf location; low room */
-#define MINTRS 50
-#define MAXTRS 79
-#define MAXPARMS 25
-#define INVLIMIT 7
-#define INTRANSITIVE -1 /* illegal object number */
-#define SPECIALBASE 300 /* base umber of special rooms */
+/* LCG PRNG parameters tested against
+ * Knuth vol. 2. by the original authors */
+#define LCG_A 1093L
+#define LCG_C 221587L
+#define LCG_M 1048576L
-typedef struct lcg_state
-{
- unsigned long a, c, m, x;
-} lcg_state;
+#define LINESIZE 1024
+#define TOKLEN 5 // # outputting characters in a token */
+#define PIRATE NDWARVES // must be NDWARVES-1 when zero-origin
+#define DALTLC LOC_NUGGET // alternate dwarf location
+#define INVLIMIT 7 // inventory limit (# of objects)
+#define INTRANSITIVE -1 // illegal object number
+#define GAMELIMIT 330 // base limit of turns
+#define NOVICELIMIT 1000 // limit of turns for novice
+#define WARNTIME 30 // late game starts at game.limit-this
+#define FLASHTIME 50 // turns from first warning till blinding flash
+#define PANICTIME 15 // time left after closing
+#define BATTERYLIFE 2500 // turn limit increment from batteries
+#define WORD_NOT_FOUND \
+ -1 // "Word not found" flag value for the vocab hash functions.
+#define WORD_EMPTY 0 // "Word empty" flag value for the vocab hash functions
+#define PIT_KILL_PROB 35 // Percentage probability of dying from fall in pit.
+#define CARRIED -1 // Player is toting it
+#define READ_MODE "rb" // b is not needed for POSIX but harmless
+#define WRITE_MODE "wb" // b is not needed for POSIX but harmless
-typedef long token_t; /* word token - someday this will be char[TOKLEN+1] */
-typedef long vocab_t; /* index into a vocabulary array */
+/* Special object-state values - integers > 0 are object-specific */
+#define STATE_NOTFOUND -1 // 'Not found" state of treasures
+#define STATE_FOUND 0 // After discovered, before messed with
+#define STATE_IN_CAVITY 1 // State value common to all gemstones
-struct game_t {
- long abbnum;
- long blklin;
- long bonus;
- long chloc;
- long chloc2;
- long clock1;
- long clock2;
- long clshnt;
- long closed;
- long closng;
- long conds;
- long detail;
- long dflag;
- long dkill;
- long dtotal;
- long foobar;
- long holdng;
- long iwest;
- long knfloc;
- long limit;
- long lmwarn;
- long loc;
- long newloc;
- long novice;
- long numdie;
- long oldloc;
- long oldlc2;
- long oldobj;
- long panic;
- long saved;
- long tally;
- long thresh;
- long trndex;
- long trnluz;
- long turns;
- long wzdark;
- long zzword;
- long abbrev[LOCSIZ+1];
- long atloc[LOCSIZ+1];
- long dseen[NDWARVES+1];
- long dloc[NDWARVES+1];
- long odloc[NDWARVES+1];
- long fixed[NOBJECTS+1];
- long link[NOBJECTS*2 + 1];
- long place[NOBJECTS+1];
- long hinted[HNTSIZ+1];
- long hintlc[HNTSIZ+1];
- long prop[NOBJECTS+1];
-};
+/* Special fixed object-state values - integers > 0 are location */
+#define IS_FIXED -1
+#define IS_FREE 0
-extern struct game_t game;
+#ifndef FOUNDBOOL
+/* (ESR) It is fitting that translation of the original ADVENT should
+ * have left us a maze of twisty little conditionals that resists all
+ * understanding. Setting and use of what is now the per-object state
+ * member (which used to be an array of its own) is our mystery. This
+ * state tangles together information about whether the object is a
+ * treasure, whether the player has seen it yet, and its activation
+ * state.
+ *
+ * Things we think we know:
+ *
+ * STATE_NOTFOUND is only set on treasures. Non-treasures start the
+ * game in STATE_FOUND.
+ *
+ * PROP_STASHED is supposed to map a state property value to a
+ * negative range, where the object cannot be picked up but the value
+ * can be recovered later. Various objects get this property when
+ * the cave starts to close. Only seems to be significant for the bird
+ * and readable objects, notably the clam/oyster - but the code around
+ * those test is difficult to read.
+ */
+#define PROP_STASHIFY(n) (-1 - (n))
+#define PROP_IS_STASHED(obj) (game.objects[obj].prop < STATE_NOTFOUND)
+#define PROP_IS_NOTFOUND(obj) (game.objects[obj].prop == STATE_NOTFOUND)
+#define PROP_IS_FOUND(obj) (game.objects[obj].prop == STATE_FOUND)
+#define PROP_IS_STASHED_OR_UNSEEN(obj) (game.objects[obj].prop < 0)
+#define PROP_SET_FOUND(obj) (game.objects[obj].prop = STATE_FOUND)
+#define PROP_SET_NOT_FOUND(obj) (game.objects[obj].prop = STATE_NOTFOUND)
+#define PROP_IS_NOTFOUND2(g, o) (g.objects[o].prop == STATE_NOTFOUND)
+#define PROP_IS_INVALID(val) (val < -MAX_STATE - 1 || val > MAX_STATE)
+#else
+/* (ESR) Only the boldest of adventurers will explore here. This
+ * alternate set of definitions for the macros above was an attempt to
+ * break from out of the state encoding a per-object "found" member
+ * telling whether or not the player has seen the object.
+ *
+ * What's broken when you try to use thus is
+ * PROP_IS_STASHED_OR_UNSEEN. The symptom is game.tally getting
+ * decremented on non-treasures.
+ */
+#define PROP_STASHIFY(n) (-(n))
+#define PROP_IS_STASHED(obj) (game.objects[obj].prop < 0)
+#define PROP_IS_NOTFOUND(obj) (!game.objects[obj].found)
+#define PROP_IS_FOUND(obj) \
+ (game.objects[obj].found && game.objects[obj].prop == 0)
+#define PROP_IS_STASHED_OR_UNSEEN(obj) \
+ (!game.objects[obj].found || game.objects[obj].prop < 0)
+#define PROP_SET_FOUND(obj) \
+ do { \
+ game.objects[obj].found = true; \
+ game.objects[obj].prop = STATE_FOUND; \
+ } while (0)
+#define PROP_SET_NOT_FOUND(obj) game.objects[obj].found = false
+#define PROP_IS_NOTFOUND2(g, o) (!g.objects[o].found)
+#define PROP_IS_INVALID(val) (val < -MAX_STATE || val > MAX_STATE)
+#define PROP_SET_SEEN(obj) game.objects[object].found = true
+#endif
+#define PROP_STASHED(obj) PROP_STASHIFY(game.objects[obj].prop)
-extern long LNLENG, LNPOSN, PARMS[];
-extern char rawbuf[LINESIZE], INLINE[LINESIZE+1];
-extern const char ascii_to_advent[];
-extern const char advent_to_ascii[];
-extern FILE *logfp;
-extern bool oldstyle, editline, prompt;
-extern lcg_state lcgstate;
-
-/* b is not needed for POSIX but harmless */
-#define READ_MODE "rb"
-#define WRITE_MODE "wb"
-extern char* xstrdup(const char*);
-extern void packed_to_token(long, char token[6]);
-extern void newspeak(char*);
-extern void PSPEAK(vocab_t,int);
-extern void RSPEAK(vocab_t);
-extern void SETPRM(long,long,long);
-extern bool GETIN(FILE *,token_t*,token_t*,token_t*,token_t*);
-extern long YES(FILE *,vocab_t,vocab_t,vocab_t);
-extern long GETTXT(bool,bool,bool);
-extern token_t MAKEWD(long);
-extern void TYPE0(void);
-extern long VOCAB(long,long);
-extern void DSTROY(long);
-extern void JUGGLE(long);
-extern void MOVE(long,long);
-extern long PUT(long,long,long);
-extern void CARRY(long,long);
-extern void DROP(long,long);
-extern long ATDWRF(long);
-extern long SETBIT(long);
-extern bool TSTBIT(long,int);
-extern long RNDVOC(long,long);
-extern void BUG(long) __attribute__((noreturn));
-extern bool MAPLIN(FILE *);
-extern void TYPE(void);
-extern void DATIME(long*, long*);
-
-extern void set_seed(long);
-extern unsigned long get_next_lcg_value(void);
-extern long randrange(long);
-extern void score(long);
-extern int saveresume(FILE *, bool);
+#define PROMPT "> "
/*
- * MOD(N,M) = Arithmetic modulus
- * AT(OBJ) = true if on either side of two-placed object
+ * DESTROY(N) = Get rid of an item by putting it in LOC_NOWHERE
+ * MOD(N,M) = Arithmetic modulus
+ * TOTING(OBJ) = true if the OBJ is being carried
+ * AT(OBJ) = true if on either side of two-placed object
+ * HERE(OBJ) = true if the OBJ is at "LOC" (or is being carried)
* CNDBIT(L,N) = true if COND(L) has bit n set (bit 0 is units bit)
- * DARK(LOC) = true if location "LOC" is dark
- * FORCED(LOC) = true if LOC moves without asking for input (COND=2)
- * FOREST(LOC) = true if LOC is part of the forest
- * GSTONE(OBJ) = true if OBJ is a gemstone
- * HERE(OBJ) = true if the OBJ is at "LOC" (or is being carried)
- * LIQUID() = object number of liquid in bottle
+ * LIQUID() = object number of liquid in bottle
* LIQLOC(LOC) = object number of liquid (if any) at LOC
+ * FORCED(LOC) = true if LOC moves without asking for input (COND=2)
+ * DARK(LOC) = true if location "LOC" is dark
* PCT(N) = true N% of the time (N integer from 0 to 100)
- * TOTING(OBJ) = true if the OBJ is being carried */
-
-#define MOD(N,M) ((N) % (M))
-#define TOTING(OBJ) (game.place[OBJ] == -1)
-#define AT(OBJ) (game.place[OBJ] == game.loc || game.fixed[OBJ] == game.loc)
-#define HERE(OBJ) (AT(OBJ) || TOTING(OBJ))
-#define LIQ2(PBOTL) ((1-(PBOTL))*WATER+((PBOTL)/2)*(WATER+OIL))
-#define LIQUID() (LIQ2(game.prop[BOTTLE]<0 ? -1-game.prop[BOTTLE] : game.prop[BOTTLE]))
-#define LIQLOC(LOC) (LIQ2((MOD(COND[LOC]/2*2,8)-5)*MOD(COND[LOC]/4,2)+1))
-#define CNDBIT(L,N) (TSTBIT(COND[L],N))
-#define FORCED(LOC) (COND[LOC] == 2)
-#define DARK(DUMMY) ((!CNDBIT(game.loc,LIGHT)) && (game.prop[LAMP] == 0 || !HERE(LAMP)))
-#define PCT(N) (randrange(100) < (N))
-#define GSTONE(OBJ) ((OBJ) == EMRALD || (OBJ) == RUBY || (OBJ) == AMBER || (OBJ) == SAPPH)
-#define FOREST(LOC) ((LOC) >= 145 && (LOC) <= 166)
-#define VOCWRD(LETTRS,SECT) (VOCAB(MAKEWD(LETTRS),SECT))
-#define SPECIAL(LOC) ((LOC) > SPECIALBASE)
-
-/* The following two functions were added to fix a bug (game.clock1 decremented
- * while in forest). They should probably be replaced by using another
- * "cond" bit. For now, however, a quick fix... OUTSID(LOC) is true if
- * LOC is outside, INDEEP(LOC) is true if LOC is "deep" in the cave (hall
- * of mists or deeper). Note special kludges for "Foof!" locs. */
-
-#define OUTSID(LOC) ((LOC) <= 8 || FOREST(LOC) || (LOC) == PLAC[SAPPH] || (LOC) == 180 || (LOC) == 182)
-#define INDEEP(LOC) ((LOC) >= 15 && !OUTSID(LOC) && (LOC) != 179)
-
-/* vocabulary items */
-extern long AMBER, ATTACK, AXE, BACK, BATTER, BEAR,
- BIRD, BLOOD, BOTTLE, CAGE, CAVE, CAVITY, CHAIN, CHASM, CHEST,
- CLAM, COINS, DOOR, DPRSSN, DRAGON, DWARF, EGGS,
- EMRALD, ENTER, ENTRNC, FIND, FISSUR, FOOD, GRATE, HINT, INVENT,
- JADE, KEYS, KNIFE, LAMP, LOCK, LOOK, MAGZIN, MESSAG, MIRROR, NUGGET, NUL,
- OGRE, OIL, OYSTER, PANIC, PEARL, PILLOW, PLANT, PLANT2, PYRAM,
- RESER, ROD, ROD2, RUBY, RUG, SAPPH, SAY, SIGN, SNAKE,
- STEPS, STICK, STREAM, THROW, TRIDNT, TROLL, TROLL2,
- URN, VASE, VEND, VOLCAN, WATER;
-
-enum speechpart {unknown, intransitive, transitive};
-
-/* Phase codes for action returns.
+ * GSTONE(OBJ) = true if OBJ is a gemstone
+ * FOREST(LOC) = true if LOC is part of the forest
+ * OUTSID(LOC) = true if location not in the cave
+ * INSIDE(LOC) = true if location is in the cave or the building at the
+ * beginning of the game INDEEP(LOC) = true if location is in the Hall of Mists
+ * or deeper BUG(X) = report bug and exit
+ */
+#define DESTROY(N) move(N, LOC_NOWHERE)
+#define MOD(N, M) ((N) % (M))
+#define TOTING(OBJ) (game.objects[OBJ].place == CARRIED)
+#define AT(OBJ) \
+ (game.objects[OBJ].place == game.loc || \
+ game.objects[OBJ].fixed == game.loc)
+#define HERE(OBJ) (AT(OBJ) || TOTING(OBJ))
+#define CNDBIT(L, N) (tstbit(conditions[L], N))
+#define LIQUID() \
+ (game.objects[BOTTLE].prop == WATER_BOTTLE ? WATER \
+ : game.objects[BOTTLE].prop == OIL_BOTTLE ? OIL \
+ : NO_OBJECT)
+#define LIQLOC(LOC) \
+ (CNDBIT((LOC), COND_FLUID) ? CNDBIT((LOC), COND_OILY) ? OIL : WATER \
+ : NO_OBJECT)
+#define FORCED(LOC) CNDBIT(LOC, COND_FORCED)
+#define DARK(DUMMY) \
+ (!CNDBIT(game.loc, COND_LIT) && \
+ (game.objects[LAMP].prop == LAMP_DARK || !HERE(LAMP)))
+#define PCT(N) (randrange(100) < (N))
+#define GSTONE(OBJ) \
+ ((OBJ) == EMERALD || (OBJ) == RUBY || (OBJ) == AMBER || (OBJ) == SAPPH)
+#define FOREST(LOC) CNDBIT(LOC, COND_FOREST)
+#define OUTSID(LOC) (CNDBIT(LOC, COND_ABOVE) || FOREST(LOC))
+#define INSIDE(LOC) (!OUTSID(LOC) || LOC == LOC_BUILDING)
+#define INDEEP(LOC) CNDBIT((LOC), COND_DEEP)
+#define BUG(x) bug(x, #x)
+
+enum bugtype {
+ SPECIAL_TRAVEL_500_GT_L_GT_300_EXCEEDS_GOTO_LIST,
+ VOCABULARY_TYPE_N_OVER_1000_NOT_BETWEEN_0_AND_3,
+ INTRANSITIVE_ACTION_VERB_EXCEEDS_GOTO_LIST,
+ TRANSITIVE_ACTION_VERB_EXCEEDS_GOTO_LIST,
+ CONDITIONAL_TRAVEL_ENTRY_WITH_NO_ALTERATION,
+ LOCATION_HAS_NO_TRAVEL_ENTRIES,
+ HINT_NUMBER_EXCEEDS_GOTO_LIST,
+ SPEECHPART_NOT_TRANSITIVE_OR_INTRANSITIVE_OR_UNKNOWN,
+ ACTION_RETURNED_PHASE_CODE_BEYOND_END_OF_SWITCH,
+};
+
+enum speaktype { touch, look, hear, study, change };
+
+enum termination { endgame, quitgame, scoregame };
+
+enum speechpart { unknown, intransitive, transitive };
+
+typedef enum { NO_WORD_TYPE, MOTION, OBJECT, ACTION, NUMERIC } word_type_t;
+
+typedef enum scorebonus { none, splatter, defeat, victory } score_t;
+
+/* Phase codes for action returns.
* These were at one time FORTRAN line numbers.
- * The values don't matter, but perturb their order at your peril.
*/
-#define GO_TERMINATE 2
-#define GO_MOVE 8
-#define GO_TOP 2000
-#define GO_CLEAROBJ 2012
-#define GO_CHECKHINT 2600
-#define GO_CHECKFOO 2607
-#define GO_CLOSEJUMP 2610
-#define GO_DIRECTION 2620
-#define GO_LOOKUP 2630
-#define GO_WORD2 2800
-#define GO_SPECIALS 1900
-#define GO_UNKNOWN 8000
-#define GO_ACTION 40000
-#define GO_DWARFWAKE 19000
-
-/* Symbols for cond bits */
-#define LIGHT 0 /* Light */
-#define OILY 1 /* If bit 2 is on: on for oil, off for water */
-#define FLUID 2 /* Liquid asset, see bit 1 */
-#define NOARRR 3 /* Pirate doesn't go here unless following player */
-#define NOBACK 4 /* Cannot use "back" to move away */
-/* Bits past 10 indicate areas of interest to "hint" routines */
-#define HBASE 10 /* Base for location hint bitss */
-#define HCAVE 11 /* Trying to get into cave */
-#define HBIRD 12 /* Trying to catch bird */
-#define HSNAKE 13 /* Trying to deal with snake */
-#define HMAZE 14 /* Lost in maze */
-#define HDARK 15 /* Pondering dark room */
-#define HWITT 16 /* At Witt's End */
-#define HCLIFF 17 /* Cliff with urn */
-#define HWOODS 18 /* Lost in forest */
-#define HOGRE 19 /* Trying to deal with ogre */
-#define HJADE 20 /* Found all treasures except jade */
-
-/* hack to ignore GCC Unused Result */
-#define IGNORE(r) do{if (r){}}while(0)
+typedef enum {
+ GO_TERMINATE,
+ GO_MOVE,
+ GO_TOP,
+ GO_CLEAROBJ,
+ GO_CHECKHINT,
+ GO_WORD2,
+ GO_UNKNOWN,
+ GO_DWARFWAKE,
+} phase_codes_t;
-/* end */
+/* Use fixed-lwength types to make the save format moore portable */
+typedef int32_t vocab_t; // index into a vocabulary array */
+typedef int32_t verb_t; // index into an actions array */
+typedef int32_t obj_t; // index into the object array */
+typedef int32_t loc_t; // index into the locations array */
+typedef int32_t turn_t; // turn counter or threshold */
+typedef int32_t bool32_t; // turn counter or threshold */
+struct game_t {
+ int32_t lcg_x;
+ int32_t abbnum; // How often to print int descriptions
+ score_t bonus; // What kind of finishing bonus we are getting
+ loc_t chloc; // pirate chest location
+ loc_t chloc2; // pirate chest alternate location
+ turn_t clock1; // # turns from finding last treasure to close
+ turn_t clock2; // # turns from warning till blinding flash
+ bool32_t clshnt; // has player read the clue in the endgame?
+ bool32_t closed; // whether we're all the way closed
+ bool32_t closng; // whether it's closing time yet
+ bool32_t lmwarn; // has player been warned about lamp going dim?
+ bool32_t novice; // asked for instructions at start-up?
+ bool32_t panic; // has player found out he's trapped?
+ bool32_t wzdark; // whether the loc he's leaving was dark
+ bool32_t blooded; // has player drunk of dragon's blood?
+ int32_t conds; // min value for cond[loc] if loc has any hints
+ int32_t detail; // level of detail in descriptions
+
+ /* dflag controls the level of activation of dwarves:
+ * 0 No dwarf stuff yet (wait until reaches Hall Of Mists)
+ * 1 Reached Hall Of Mists, but hasn't met first dwarf
+ * 2 Met 1t dwarf, others start moving, no knives thrown yet
+ * 3 A knife has been thrown (first set always misses) 3+
+ * Dwarves are mad (increases their accuracy) */
+ int32_t dflag;
+
+ int32_t dkill; // dwarves killed
+ int32_t dtotal; // total dwarves (including pirate) in loc
+ int32_t foobar; // progress in saying "FEE FIE FOE FOO".
+ int32_t holdng; // number of objects being carried
+ int32_t igo; // # uses of "go" instead of a direction
+ int32_t iwest; // # times he's said "west" instead of "w"
+ loc_t knfloc; // knife location; LOC_NOWERE if none, -1 after caveat
+ turn_t limit; // lifetime of lamp
+ loc_t loc; // where player is now
+ loc_t newloc; // where player is going
+ turn_t numdie; // number of times killed so far
+ loc_t oldloc; // where player was
+ loc_t oldlc2; // where player was two moves ago
+ obj_t oldobj; // last object player handled
+ int32_t saved; // point penalty for saves
+ int32_t tally; // count of treasures gained
+ int32_t thresh; // current threshold for endgame scoring tier
+ bool32_t seenbigwords; // have we red the graffiti in the Giant's Room?
+ turn_t trnluz; // # points lost so far due to turns used
+ turn_t turns; // counts commands given (ignores yes/no)
+ char zzword[TOKLEN + 1]; // randomly generated magic word from bird
+ struct {
+ int32_t abbrev; // has location been seen?
+ int32_t atloc; // head of object linked list per location
+ } locs[NLOCATIONS + 1];
+ struct {
+ int32_t seen; // true if dwarf has seen him
+ loc_t loc; // location of dwarves, initially hard-wired in
+ loc_t oldloc; // prior loc of each dwarf, initially garbage
+ } dwarves[NDWARVES + 1];
+ struct {
+#ifdef FOUNDBOOL
+ bool32_t found; // has the location of this object been found?
+#endif
+ loc_t fixed; // fixed location of object (if not IS_FREE)
+ int32_t prop; // object state */
+ loc_t place; // location of object
+ } objects[NOBJECTS + 1];
+ struct {
+ bool32_t used; // hints[i].used = true iff hint i has been used.
+ int32_t lc; // hints[i].lc = show int at LOC with cond bit i
+ } hints[NHINTS];
+ obj_t link[NOBJECTS * 2 + 1]; // object-list links
+};
+
+/*
+ * Game application settings - settings, but not state of the game, per se.
+ * This data is not saved in a saved game.
+ */
+struct settings_t {
+ FILE *logfp;
+ bool oldstyle;
+ bool prompt;
+ char **argv;
+ int argc;
+ int optind;
+ FILE *scriptfp;
+ int debug;
+};
+
+typedef struct {
+ char raw[LINESIZE];
+ vocab_t id;
+ word_type_t type;
+} command_word_t;
+
+typedef enum {
+ EMPTY,
+ RAW,
+ TOKENIZED,
+ GIVEN,
+ PREPROCESSED,
+ PROCESSING,
+ EXECUTED
+} command_state_t;
+
+typedef struct {
+ enum speechpart part;
+ command_word_t word[2];
+ verb_t verb;
+ obj_t obj;
+ command_state_t state;
+} command_t;
+
+/*
+ * Bump on save format change.
+ *
+ * Note: Verify that the tests run clean before bumping this, then rebuild the
+ * check files afterwards. Otherwise you will get a spurious failure due to the
+ * old version having been generated into a check file.
+ */
+#define SAVE_VERSION 31
+
+/*
+ * Goes at start of file so saves can be identified by file(1) and the like.
+ */
+#define ADVENT_MAGIC "open-adventure\n"
+
+/*
+ * If you change the first three members, the resume function may not properly
+ * reject saves from older versions. Later members can change, but bump the
+ * version when you do that.
+ */
+struct save_t {
+ char magic[sizeof(ADVENT_MAGIC)];
+ int32_t version;
+ int32_t canary;
+ struct game_t game;
+};
+
+extern struct game_t game;
+extern struct save_t save;
+extern struct settings_t settings;
+
+extern char *myreadline(const char *);
+extern bool get_command_input(command_t *);
+extern void clear_command(command_t *);
+extern void speak(const char *, ...);
+extern void sspeak(int msg, ...);
+extern void pspeak(vocab_t, enum speaktype, bool, int, ...);
+extern void rspeak(vocab_t, ...);
+extern void echo_input(FILE *, const char *, const char *);
+extern bool silent_yes_or_no(void);
+extern bool yes_or_no(const char *, const char *, const char *);
+extern void juggle(obj_t);
+extern void move(obj_t, loc_t);
+extern void put(obj_t, loc_t, int);
+extern void carry(obj_t, loc_t);
+extern void drop(obj_t, loc_t);
+extern int atdwrf(loc_t);
+extern int setbit(int);
+extern bool tstbit(int, int);
+extern void set_seed(int32_t);
+extern int32_t randrange(int32_t);
+extern int score(enum termination);
+extern void terminate(enum termination) __attribute__((noreturn));
+extern int savefile(FILE *);
+#if defined ADVENT_AUTOSAVE
+extern void autosave(void);
+#endif
+extern int suspend(void);
+extern int resume(void);
+extern int restore(FILE *);
+extern int initialise(void);
+extern phase_codes_t action(command_t);
+extern void state_change(obj_t, int);
+extern bool is_valid(struct game_t);
+extern void bug(enum bugtype, const char *) __attribute__((__noreturn__));
+
+/* represent an empty command word */
+static const command_word_t empty_command_word = {
+ .raw = "",
+ .id = WORD_EMPTY,
+ .type = NO_WORD_TYPE,
+};
+
+/* end */
projects / open-adventure.git / blobdiff