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#include "misc.h"

#ifdef __MSDOS__

#include "alloc.h"

#endif

#include "adv_baremetal.h"

#define TRUE  (0==0)

#define FALSE (0!=0)

long ABB[186], ATAB[331], ATLOC[186], BLKLIN = TRUE, DFLAG,

                DLOC[7], FIXED[101], HOLDNG,

                KTAB[331], *LINES, LINK[201], LNLENG, LNPOSN,

                PARMS[26], PLACE[101], PTEXT[101], RTEXT[278],

                SETUP = 0, TABSIZ = 330;

char INLINE[101], MAP1[129], MAP2[129];

long ABBNUM, ACTSPK[36], AMBER, ATTACK, AXE, BACK, BATTER, BEAR, BIRD, BLOOD, BONUS,

                 BOTTLE, CAGE, CAVE, CAVITY, CHAIN, CHASM, CHEST, CHLOC, CHLOC2,

                CLAM, CLOCK1, CLOCK2, CLOSED, CLOSNG, CLSHNT, CLSMAX = 12, CLSSES,

                COINS, COND[186], CONDS, CTEXT[13], CVAL[13], DALTLC, DETAIL,

                 DKILL, DOOR, DPRSSN, DRAGON, DSEEN[7], DTOTAL, DWARF, EGGS,

                EMRALD, ENTER, ENTRNC, FIND, FISSUR, FIXD[101], FOOBAR, FOOD,

                GRATE, HINT, HINTED[21], HINTLC[21], HINTS[21][5], HNTMAX,

                HNTSIZ = 20, I, INVENT, IGO, IWEST, J, JADE, K, K2, KEY[186], KEYS, KK,

                KNFLOC, KNIFE, KQ, L, LAMP, LIMIT, LINSIZ = 12500, LINUSE, LL,

                LMWARN, LOC, LOCK, LOCSIZ = 185, LOCSND[186], LOOK, LTEXT[186],

                MAGZIN, MAXDIE, MAXTRS, MESH = 123456789,

                MESSAG, MIRROR, MXSCOR,

                NEWLOC, NOVICE, NUGGET, NUL, NUMDIE, OBJ, OBJSND[101],

                OBJTXT[101], ODLOC[7], OGRE, OIL, OLDLC2, OLDLOC, OLDOBJ, OYSTER,

                PANIC, PEARL, PILLOW, PLAC[101], PLANT, PLANT2, PROP[101], PYRAM,

                RESER, ROD, ROD2, RTXSIZ = 277, RUBY, RUG, SAPPH, SAVED, SAY,

                SCORE, SECT, SIGN, SNAKE, SPK, STEPS, STEXT[186], STICK,

                STREAM, TABNDX, TALLY, THRESH, THROW, TK[21], TRAVEL[886], TRIDNT,

                TRNDEX, TRNLUZ, TRNSIZ = 5, TRNVAL[6], TRNVLS, TROLL, TROLL2, TRVS,

                 TRVSIZ = 885, TTEXT[6], TURNS, URN, V1, V2, VASE, VEND, VERB,

                VOLCAN, VRBSIZ = 35, VRSION = 25, WATER, WD1, WD1X, WD2, WD2X,

                WZDARK = FALSE, ZZWORD;

extern initialise();

extern void score(long);

extern action(long);

/*

 * MAIN PROGRAM

 */

main() {

/* Initialize file data structures */

startup();

/*  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 */

/* LOGICAL VARIABLES:

 *

 *  CLOSED SAYS WHETHER WE'RE ALL THE WAY CLOSED

 *  CLOSNG SAYS WHETHER IT'S CLOSING TIME YET

 *  CLSHNT SAYS WHETHER HE'S READ THE CLUE IN THE ENDGAME

 *  LMWARN SAYS WHETHER HE'S BEEN WARNED ABOUT LAMP GOING DIM

 *  NOVICE SAYS WHETHER HE ASKED FOR INSTRUCTIONS AT START-UP

 *  PANIC SAYS WHETHER HE'S FOUND OUT HE'S TRAPPED IN THE CAVE

 *  WZDARK SAYS WHETHER THE LOC HE'S LEAVING WAS DARK */

#include "funcs.h"

/*  READ THE DATABASE IF WE HAVE NOT YET DONE SO */

        LINES = (long *)alloc_mem(LINSIZ+1,sizeof(long));

        if(!LINES){

                puts("Not enough memory!\n");

                exit(FALSE);

        }

        MAP2[1] = 0;

        if(!SETUP)initialise();

        if(SETUP > 0) goto L1;

/*  UNLIKE EARLIER VERSIONS, ADVENTURE IS NO LONGER RESTARTABLE.  (THIS

 *  LETS US GET AWAY WITH MODIFYING THINGS SUCH AS OBJSND(BIRD) WITHOUT

 *  HAVING TO BE ABLE TO UNDO THE CHANGES LATER.)  IF A "USED" COPY IS

 *  RERUN, WE COME HERE AND TELL THE PLAYER TO RUN A FRESH COPY. */

        RSPEAK(201);

        exit(FALSE);

/*  START-UP, DWARF STUFF */

L1:     SETUP= -1;

        I=RAN(-1);

        ZZWORD=RNDVOC(3,0)+MESH*2;

        NOVICE=YES(65,1,0);

        NEWLOC=1;

        LOC=1;

        LIMIT=330;

        if(NOVICE)LIMIT=1000;

/*  CAN'T LEAVE CAVE ONCE IT'S CLOSING (EXCEPT BY MAIN OFFICE). */

L2:     if(!OUTSID(NEWLOC) || NEWLOC == 0 || !CLOSNG) goto L71;

        RSPEAK(130);

        NEWLOC=LOC;

        if(!PANIC)CLOCK2=15;

        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). */

L71:    if(NEWLOC == LOC || FORCED(LOC) || CNDBIT(LOC,3)) goto L74;

        /* 73 */ for (I=1; I<=5; I++) {

        if(ODLOC[I] != NEWLOC || !DSEEN[I]) goto L73;

        NEWLOC=LOC;

        RSPEAK(2);

         goto L74;

L73:    /*etc*/ ;

        } /* end loop */

L74:    LOC=NEWLOC;

/*  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 (LOC 15).

 *  IF 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(LOC == 0 || FORCED(LOC) || CNDBIT(NEWLOC,3)) goto L2000;

        if(DFLAG != 0) goto L6000;

        if(INDEEP(LOC))DFLAG=1;

         goto L2000;

/*  WHEN WE ENCOUNTER THE FIRST DWARF, WE KILL 0, 1, OR 2 OF THE 5 DWARVES.  IF

 *  ANY OF THE SURVIVORS IS AT LOC, REPLACE HIM WITH THE ALTERNATE. */

L6000:  if(DFLAG != 1) goto L6010;

        if(!INDEEP(LOC) || (PCT(95) && (!CNDBIT(LOC,4) || PCT(85)))) goto L2000;

        DFLAG=2;

        /* 6001 */ for (I=1; I<=2; I++) {

        J=1+RAN(5);

L6001:  if(PCT(50))DLOC[J]=0;

        } /* end loop */

        /* 6002 */ for (I=1; I<=5; I++) {

        if(DLOC[I] == LOC)DLOC[I]=DALTLC;

L6002:  ODLOC[I]=DLOC[I];

        } /* end loop */

        RSPEAK(3);

        DROP(AXE,LOC);

         goto L2000;

/*  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. */

L6010:  DTOTAL=0;

        ATTACK=0;

        STICK=0;

        /* 6030 */ for (I=1; I<=6; I++) {

        if(DLOC[I] == 0) goto L6030;

/*  FILL TK ARRAY WITH ALL THE PLACES THIS DWARF MIGHT GO. */

        J=1;

        KK=DLOC[I];

        KK=KEY[KK];

        if(KK == 0) goto L6016;

L6012:  NEWLOC=MOD(IABS(TRAVEL[KK])/1000,1000);

        {long x = J-1;

        if(NEWLOC > 300 || !INDEEP(NEWLOC) || NEWLOC == ODLOC[I] || (J > 1 &&

                NEWLOC == TK[x]) || J >= 20 || NEWLOC == DLOC[I] ||

                FORCED(NEWLOC) || (I == 6 && CNDBIT(NEWLOC,3)) ||

                IABS(TRAVEL[KK])/1000000 == 100) goto L6014;}

        TK[J]=NEWLOC;

        J=J+1;

L6014:  KK=KK+1;

        {long x = KK-1; if(TRAVEL[x] >= 0) goto L6012;}

L6016:  TK[J]=ODLOC[I];

        if(J >= 2)J=J-1;

        J=1+RAN(J);

        ODLOC[I]=DLOC[I];

        DLOC[I]=TK[J];

        DSEEN[I]=(DSEEN[I] && INDEEP(LOC)) || (DLOC[I] == LOC || ODLOC[I] == LOC);

        if(!DSEEN[I]) goto L6030;

        DLOC[I]=LOC;

        if(I != 6) goto L6027;

/*  THE PIRATE'S SPOTTED HIM.  HE 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 PLACE(CHEST)=0 MIGHT MEAN THAT HE'S

 *  THROWN IT TO THE TROLL, BUT IN THAT CASE HE'S SEEN THE CHEST (PROP=0). */

        if(LOC == CHLOC || PROP[CHEST] >= 0) goto L6030;

        K=0;

        /* 6020 */ for (J=50; J<=MAXTRS; J++) {

/*  PIRATE WON'T TAKE PYRAMID FROM PLOVER ROOM OR DARK ROOM (TOO EASY!). */

        if(J == PYRAM && (LOC == PLAC[PYRAM] || LOC == PLAC[EMRALD])) goto L6020;

        if(TOTING(J)) goto L6021;

L6020:  if(HERE(J))K=1;

        } /* end loop */

        if(TALLY == 1 && K == 0 && PLACE[CHEST] == 0 && HERE(LAMP) && PROP[LAMP]

                == 1) goto L6025;

        if(ODLOC[6] != DLOC[6] && PCT(20))RSPEAK(127);

         goto L6030;

L6021:  if(PLACE[CHEST] != 0) goto L6022;

/*  INSTALL CHEST ONLY ONCE, TO INSURE IT IS THE LAST TREASURE IN THE LIST. */

        MOVE(CHEST,CHLOC);

        MOVE(MESSAG,CHLOC2);

L6022:  RSPEAK(128);

        /* 6023 */ for (J=50; J<=MAXTRS; J++) {

        if(J == PYRAM && (LOC == PLAC[PYRAM] || LOC == PLAC[EMRALD])) goto L6023;

        if(AT(J) && FIXED[J] == 0)CARRY(J,LOC);

        if(TOTING(J))DROP(J,CHLOC);

L6023:  /*etc*/ ;

        } /* end loop */

L6024:  DLOC[6]=CHLOC;

        ODLOC[6]=CHLOC;

        DSEEN[6]=FALSE;

         goto L6030;

L6025:  RSPEAK(186);

        MOVE(CHEST,CHLOC);

        MOVE(MESSAG,CHLOC2);

         goto L6024;

/*  THIS THREATENING LITTLE DWARF IS IN THE ROOM WITH HIM! */

L6027:  DTOTAL=DTOTAL+1;

        if(ODLOC[I] != DLOC[I]) goto L6030;

        ATTACK=ATTACK+1;

        if(KNFLOC >= 0)KNFLOC=LOC;

        if(RAN(1000) < 95*(DFLAG-2))STICK=STICK+1;

L6030:  /*etc*/ ;

        } /* end loop */

/*  NOW WE KNOW WHAT'S HAPPENING.  LET'S TELL THE POOR SUCKER ABOUT IT.

 *  NOTE THAT VARIOUS OF THE "KNIFE" MESSAGES MUST HAVE SPECIFIC RELATIVE

 *  POSITIONS IN THE RSPEAK DATABASE. */

        if(DTOTAL == 0) goto L2000;

        SETPRM(1,DTOTAL,0);

        RSPEAK(4+1/DTOTAL);

        if(ATTACK == 0) goto L2000;

        if(DFLAG == 2)DFLAG=3;

        SETPRM(1,ATTACK,0);

        K=6;

        if(ATTACK > 1)K=250;

        RSPEAK(K);

        SETPRM(1,STICK,0);

        RSPEAK(K+1+2/(1+STICK));

        if(STICK == 0) goto L2000;

        OLDLC2=LOC;

         goto L99;

/*  DESCRIBE THE CURRENT LOCATION AND (MAYBE) GET NEXT COMMAND. */

/*  PRINT TEXT FOR CURRENT LOC. */

L2000:  if(LOC == 0) goto L99;

        KK=STEXT[LOC];

        if(MOD(ABB[LOC],ABBNUM) == 0 || KK == 0)KK=LTEXT[LOC];

        if(FORCED(LOC) || !DARK(0)) goto L2001;

        if(WZDARK && PCT(35)) goto L90;

        KK=RTEXT[16];

L2001:  if(TOTING(BEAR))RSPEAK(141);

        SPEAK(KK);

        K=1;

        if(FORCED(LOC)) goto L8;

        if(LOC == 33 && PCT(25) && !CLOSNG)RSPEAK(7);

/*  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 PROP IS 1 (DRAGON ON IT) TILL DRAGON IS KILLED.

 *  SIMILARLY FOR CHAIN; PROP IS INITIALLY 1 (LOCKED TO BEAR).  THESE HACKS

 *  ARE BECAUSE PROP=0 IS NEEDED TO GET FULL SCORE. */

        if(DARK(0)) goto L2012;

        ABB[LOC]=ABB[LOC]+1;

        I=ATLOC[LOC];

L2004:  if(I == 0) goto L2012;

        OBJ=I;

        if(OBJ > 100)OBJ=OBJ-100;

        if(OBJ == STEPS && TOTING(NUGGET)) goto L2008;

        if(PROP[OBJ] >= 0) goto L2006;

        if(CLOSED) goto L2008;

        PROP[OBJ]=0;

        if(OBJ == RUG || OBJ == CHAIN)PROP[OBJ]=1;

        TALLY=TALLY-1;

/*  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). */

L2006:  KK=PROP[OBJ];

        if(OBJ == STEPS && LOC == FIXED[STEPS])KK=1;

        PSPEAK(OBJ,KK);

L2008:  I=LINK[I];

         goto L2004;

L2009:  K=54;

L2010:  SPK=K;

L2011:  RSPEAK(SPK);

L2012:  VERB=0;

        OLDOBJ=OBJ;

        OBJ=0;

/*  CHECK IF THIS LOC IS ELIGIBLE FOR ANY HINTS.  IF BEEN HERE LONG ENOUGH,

 *  BRANCH TO HELP SECTION (ON LATER PAGE).  HINTS ALL COME BACK HERE EVENTUALLY

 *  TO FINISH THE LOOP.  IGNORE "HINTS" < 4 (SPECIAL STUFF, SEE DATABASE NOTES).

                */

L2600:  if(COND[LOC] < CONDS) goto L2603;

        /* 2602 */ for (HINT=1; HINT<=HNTMAX; HINT++) {

        if(HINTED[HINT]) goto L2602;

        if(!CNDBIT(LOC,HINT+10))HINTLC[HINT]= -1;

        HINTLC[HINT]=HINTLC[HINT]+1;

        if(HINTLC[HINT] >= HINTS[HINT][1]) goto L40000;

L2602:  /*etc*/ ;

        } /* end loop */

/*  KICK THE RANDOM NUMBER GENERATOR JUST TO ADD VARIETY TO THE CHASE.  ALSO,

 *  IF CLOSING TIME, CHECK FOR ANY OBJECTS BEING TOTED WITH PROP < 0 AND SET

 *  THE PROP TO -1-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 CLOCK1 UNLESS WELL INTO CAVE (AND NOT AT Y2). */

L2603:  if(!CLOSED) goto L2605;

        if(PROP[OYSTER] < 0 && TOTING(OYSTER))PSPEAK(OYSTER,1);

        /* 2604 */ for (I=1; I<=100; I++) {

L2604:  if(TOTING(I) && PROP[I] < 0)PROP[I]= -1-PROP[I];

        } /* end loop */

L2605:  WZDARK=DARK(0);

        if(KNFLOC > 0 && KNFLOC != LOC)KNFLOC=0;

        I=RAN(1);

        GETIN(WD1,WD1X,WD2,WD2X);

/*  EVERY INPUT, CHECK "FOOBAR" FLAG.  IF ZERO, NOTHING'S GOING ON.  IF POS,

 *  MAKE NEG.  IF NEG, HE SKIPPED A WORD, SO MAKE IT ZERO. */

L2607:  FOOBAR=(FOOBAR>0 ? -FOOBAR : 0);

        TURNS=TURNS+1;

        if(TURNS != THRESH) goto L2608;

        SPEAK(TTEXT[TRNDEX]);

        TRNLUZ=TRNLUZ+TRNVAL[TRNDEX]/100000;

        TRNDEX=TRNDEX+1;

        THRESH= -1;

        if(TRNDEX <= TRNVLS)THRESH=MOD(TRNVAL[TRNDEX],100000)+1;

L2608:  if(VERB == SAY && WD2 > 0)VERB=0;

        if(VERB == SAY) goto L4090;

        if(TALLY == 0 && INDEEP(LOC) && LOC != 33)CLOCK1=CLOCK1-1;

        if(CLOCK1 == 0) goto L10000;

        if(CLOCK1 < 0)CLOCK2=CLOCK2-1;

        if(CLOCK2 == 0) goto L11000;

        if(PROP[LAMP] == 1)LIMIT=LIMIT-1;

        if(LIMIT <= 30 && HERE(BATTER) && PROP[BATTER] == 0 && HERE(LAMP)) goto

                L12000;

        if(LIMIT == 0) goto L12400;

        if(LIMIT <= 30) goto L12200;

L19999: K=43;

        if(LIQLOC(LOC) == WATER)K=70;

        V1=VOCAB(WD1,-1);

        V2=VOCAB(WD2,-1);

        if(V1 == ENTER && (V2 == STREAM || V2 == 1000+WATER)) goto L2010;

        if(V1 == ENTER && WD2 > 0) goto L2800;

        if((V1 != 1000+WATER && V1 != 1000+OIL) || (V2 != 1000+PLANT && V2 !=

                1000+DOOR)) goto L2610;

        {long x = V2-1000; if(AT(x))WD2=MAKEWD(16152118);}

L2610:  if(V1 == 1000+CAGE && V2 == 1000+BIRD && HERE(CAGE) &&

                HERE(BIRD))WD1=MAKEWD(301200308);

L2620:  if(WD1 != MAKEWD(23051920)) goto L2625;

        IWEST=IWEST+1;

        if(IWEST == 10)RSPEAK(17);

L2625:  if(WD1 != MAKEWD( 715) || WD2 == 0) goto L2630;

        IGO=IGO+1;

        if(IGO == 10)RSPEAK(276);

L2630:  I=VOCAB(WD1,-1);

        if(I == -1) goto L3000;

        K=MOD(I,1000);

        KQ=I/1000+1;

         switch (KQ-1) { case 0: goto L8; case 1: goto L5000; case 2: goto L4000;

                case 3: goto L2010; }

        BUG(22);

/*  GET SECOND WORD FOR ANALYSIS. */

L2800:  WD1=WD2;

        WD1X=WD2X;

        WD2=0;

         goto L2620;

/*  GEE, I DON'T UNDERSTAND. */

L3000:  SETPRM(1,WD1,WD1X);

        RSPEAK(254);

         goto L2600;

/* VERB AND OBJECT ANALYSIS MOVED TO SEPARATE MODULE. */

L4000:  I=4000; goto Laction;

L4090:  I=4090; goto Laction;

L5000:  I=5000;

Laction:

        switch (action(I)) {

           case 2: goto L2;

           case 8: goto L8;

           case 2000: goto L2000;

           case 2009: goto L2009;

           case 2010: goto L2010;

           case 2011: goto L2011;

           case 2012: goto L2012;

           case 2600: goto L2600;

           case 2607: goto L2607;

           case 2630: goto L2630;

           case 2800: goto L2800;

           case 8000: goto L8000;

           case 18999: goto L18999;

           case 19000: goto L19000;

           }

        BUG(99);

/*  RANDOM INTRANSITIVE VERBS COME HERE.  CLEAR OBJ JUST IN CASE (SEE "ATTACK").

                */

L8000:  SETPRM(1,WD1,WD1X);

        RSPEAK(257);

        OBJ=0;

        goto L2600;

/*  FIGURE OUT THE NEW LOCATION

 *

 *  GIVEN THE CURRENT LOCATION IN "LOC", AND A MOTION VERB NUMBER IN "K", PUT

 *  THE NEW LOCATION IN "NEWLOC".  THE CURRENT LOC IS SAVED IN "OLDLOC" IN CASE

 *  HE WANTS TO RETREAT.  THE CURRENT OLDLOC IS SAVED IN OLDLC2, IN CASE HE

 *  DIES.  (IF HE DOES, NEWLOC WILL BE LIMBO, AND OLDLOC WILL BE WHAT KILLED

 *  HIM, SO WE NEED OLDLC2, WHICH IS THE LAST PLACE HE WAS SAFE.) */

L8:     KK=KEY[LOC];

        NEWLOC=LOC;

        if(KK == 0)BUG(26);

        if(K == NUL) goto L2;

        if(K == BACK) goto L20;

        if(K == LOOK) goto L30;

        if(K == CAVE) goto L40;

        OLDLC2=OLDLOC;

        OLDLOC=LOC;

L9:     LL=IABS(TRAVEL[KK]);

        if(MOD(LL,1000) == 1 || MOD(LL,1000) == K) goto L10;

        if(TRAVEL[KK] < 0) goto L50;

        KK=KK+1;

         goto L9;

L10:    LL=LL/1000;

L11:    NEWLOC=LL/1000;

        K=MOD(NEWLOC,100);

        if(NEWLOC <= 300) goto L13;

        if(PROP[K] != NEWLOC/100-3) goto L16;

L12:    if(TRAVEL[KK] < 0)BUG(25);

        KK=KK+1;

        NEWLOC=IABS(TRAVEL[KK])/1000;

        if(NEWLOC == LL) goto L12;

        LL=NEWLOC;

         goto L11;

L13:    if(NEWLOC <= 100) goto L14;

        if(TOTING(K) || (NEWLOC > 200 && AT(K))) goto L16;

         goto L12;

L14:    if(NEWLOC != 0 && !PCT(NEWLOC)) goto L12;

L16:    NEWLOC=MOD(LL,1000);

        if(NEWLOC <= 300) goto L2;

        if(NEWLOC <= 500) goto L30000;

        RSPEAK(NEWLOC-500);

        NEWLOC=LOC;

         goto L2;

/*  SPECIAL MOTIONS COME HERE.  LABELLING CONVENTION: STATEMENT NUMBERS NNNXX

 *  (XX=00-99) ARE USED FOR SPECIAL CASE NUMBER NNN (NNN=301-500). */

L30000: NEWLOC=NEWLOC-300;

         switch (NEWLOC) { case 1: goto L30100; case 2: goto L30200; case 3: goto

                L30300; }

        BUG(20);

/*  TRAVEL 301.  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". */

L30100: NEWLOC=99+100-LOC;

        if(HOLDNG == 0 || (HOLDNG == 1 && TOTING(EMRALD))) goto L2;

        NEWLOC=LOC;

        RSPEAK(117);

         goto L2;

/*  TRAVEL 302.  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. */

L30200: DROP(EMRALD,LOC);

         goto L12;

/*  TRAVEL 303.  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

 *  PROP(TROLL)=1, HE'S CROSSED SINCE PAYING, SO STEP OUT AND BLOCK HIM.

 *  (STANDARD TRAVEL ENTRIES CHECK FOR PROP(TROLL)=0.)  SPECIAL STUFF FOR BEAR. */

L30300: if(PROP[TROLL] != 1) goto L30310;

        PSPEAK(TROLL,1);

        PROP[TROLL]=0;

        MOVE(TROLL2,0);

        MOVE(TROLL2+100,0);

        MOVE(TROLL,PLAC[TROLL]);

        MOVE(TROLL+100,FIXD[TROLL]);

        JUGGLE(CHASM);

        NEWLOC=LOC;

         goto L2;

L30310: NEWLOC=PLAC[TROLL]+FIXD[TROLL]-LOC;

        if(PROP[TROLL] == 0)PROP[TROLL]=1;

        if(!TOTING(BEAR)) goto L2;

        RSPEAK(162);

        PROP[CHASM]=1;

        PROP[TROLL]=2;

        DROP(BEAR,NEWLOC);

        FIXED[BEAR]= -1;

        PROP[BEAR]=3;

        OLDLC2=NEWLOC;

         goto L99;

/*  END OF SPECIALS. */

/*  HANDLE "GO BACK".  LOOK FOR VERB WHICH GOES FROM LOC TO OLDLOC, OR TO OLDLC2

 *  IF OLDLOC HAS FORCED-MOTION.  K2 SAVES ENTRY -> FORCED LOC -> PREVIOUS LOC. */

L20:    K=OLDLOC;

        if(FORCED(K))K=OLDLC2;

        OLDLC2=OLDLOC;

        OLDLOC=LOC;

        K2=0;

        if(K == LOC)K2=91;

        if(CNDBIT(LOC,4))K2=274;