+/*
+ * MOD(N,M) = Arithmetic modulus
+ * AT(OBJ) = true if on either side of two-placed object
+ * 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
+ * LIQLOC(LOC) = object number of liquid (if any) at LOC
+ * PCT(N) = true N% of the time (N integer from 0 to 100)
+ * TOTING(OBJ) = true if the OBJ is being carried */
+#define DESTROY(N) move(N, LOC_NOWHERE)
+#define MOD(N,M) ((N) % (M))
+#define TOTING(OBJ) (game.place[OBJ] == CARRIED)
+#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(conditions[LOC]/2*2,8)-5)*MOD(conditions[LOC]/4,2)+1))
+#define CNDBIT(L,N) (tstbit(conditions[L],N))
+#define FORCED(LOC) CNDBIT(LOC, COND_FORCED)
+#define DARK(DUMMY) ((!tstbit(conditions[game.loc],COND_LIT)) && (game.prop[LAMP] == 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 SPECIAL(LOC) ((LOC) > SPECIALBASE)
+#define OUTSID(LOC) (CNDBIT(LOC, COND_ABOVE) || FOREST(LOC))
+#define INDEEP(LOC) ((LOC) >= LOC_MISTHALL && !OUTSID(LOC))
+#define BUG(x) bug(x, #x)
+#define MOTION_WORD(n) ((n) + 0)
+#define OBJECT_WORD(n) ((n) + 1000)
+#define ACTION_WORD(n) ((n) + 2000)
+#define SPECIAL_WORD(n) ((n) + 3000)
+#define PROMOTE_WORD(n) ((n) + 1000)
+#define DEMOTE_WORD(n) ((n) - 1000)
+
+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};
+
+/* 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.
+ */
+enum phase_codes {
+ GO_TERMINATE,
+ GO_MOVE,
+ GO_TOP,
+ GO_CLEAROBJ,
+ GO_CHECKHINT,
+ GO_CHECKFOO,
+ GO_DIRECTION,
+ GO_LOOKUP,
+ GO_WORD2,
+ GO_SPECIALS,
+ GO_UNKNOWN,
+ GO_ACTION,
+ GO_DWARFWAKE,
+};
+
+typedef long token_t; // word token - someday this will be char[TOKLEN+1]
+typedef long vocab_t; // index into a vocabulary array */
+
+struct game_t {
+ unsigned long lcg_a, lcg_c, lcg_m, lcg_x;
+ long abbnum; // How often to print non-abbreviated descriptions
+ long blklin;
+ long bonus;
+ long chloc;
+ long chloc2;
+ long clock1; // # turns from finding last treasure till closing
+ long clock2; // # turns from first warning till blinding flash
+ bool clshnt; // has player read the clue in the endgame?
+ bool closed; // whether we're all the way closed
+ bool closng; // whether it's closing time yet
+ long conds; // min value for cond(loc) if loc has any hints
+ long detail;
+
+ /* 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 first 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) */
+ long dflag;
+
+ long dkill;
+ long dtotal;
+ long foobar; // current progress in saying "FEE FIE FOE FOO".
+ long holdng; // number of objects being carried
+ long iwest; // How many times he's said "west" instead of "w"
+ long knfloc; // 0 if no knife here, loc if knife , -1 after caveat
+ long limit; // lifetime of lamp (not set here)
+ bool lmwarn; // has player been warned about lamp going dim?
+ long loc;
+ long newloc;
+ bool novice; // asked for instructions at start-up?
+ long numdie; // number of times killed so far
+ long oldloc;
+ long oldlc2;
+ long oldobj;
+ bool panic; // has player found out he's trapped in the cave?
+ long saved; // point penalty for saves
+ long tally;
+ long thresh;
+ long trndex;
+ long trnluz; // # points lost so far due to number of turns used
+ long turns; // how many commands he's given (ignores yes/no)
+ bool wzdark; // whether the loc he's leaving was dark
+ char zzword[6]; // randomly generated magic word from bird
+ bool blooded; // has player drunk of dragon's blood?
+ long abbrev[NLOCATIONS + 1];
+ long atloc[NLOCATIONS + 1];
+ long dseen[NDWARVES + 1]; // true if dwarf has seen him
+ long dloc[NDWARVES + 1]; // location of dwarves, initially hard-wired in
+ long odloc[NDWARVES + 1]; // prior loc of each dwarf, initially garbage
+ long fixed[NOBJECTS + 1];
+ long link[NOBJECTS * 2 + 1];
+ long place[NOBJECTS + 1];
+ long hinted[NHINTS]; // hintlc[i] is how long he's been at LOC with cond bit i
+ long hintlc[NHINTS]; // hinted[i] is true iff hint i has been used.
+ long prop[NOBJECTS + 1];
+};
+
+struct command_t {
+ enum speechpart part;
+ vocab_t verb;
+ vocab_t obj;
+ token_t wd1, wd1x;
+ token_t wd2, wd2x;
+};
+
+extern struct game_t game;