main.c

早期freebsd实现

/*-
 * Copyright (c) 1991, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * The game adventure was originally written in Fortran by Will Crowther
 * and Don Woods.  It was later translated to C and enhanced by Jim
 * Gillogly.  This code is derived from software contributed to Berkeley
 * by Jim Gillogly at The Rand Corporation.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#ifndef lint
static char copyright[] =
"@(#) Copyright (c) 1991, 1993\n\
	The Regents of the University of California.  All rights reserved.\n";
#endif /* not lint */

#ifndef lint
static char sccsid[] = "@(#)main.c	8.1 (Berkeley) 6/2/93";
#endif /* not lint */

/*      Re-coding of advent in C: main program                          */

#include <sys/file.h>
#include <stdio.h>
#include "hdr.h"


main(argc,argv)
int argc;
char **argv;
{
	extern int errno;
	register int i;
	int rval,ll;
	struct text *kk;
	extern trapdel();

	init();         /* Initialize everything */
	signal(2,trapdel);

	if (argc > 1)   /* Restore file specified */
	{               /* Restart is label 8305 (Fortran) */
		i = restore(argv[1]);       /* See what we've got */
		switch(i)
		{
		    case 0:     /* The restore worked fine */
			yea=Start(0);
			k=null;
			unlink(argv[1]);/* Don't re-use the save */
			goto l8;        /* Get where we're going */
		    case 1:             /* Couldn't open it */
			exit(0);        /* So give up */
		    case 2:             /* Oops -- file was altered */
			rspeak(202);    /* You dissolve */
			exit(0);        /* File could be non-adventure */
		}                       /* So don't unlink it. */
	}

	startup();              /* prepare for a user           */

	for (;;)                        /* main command loop (label 2)  */
	{       if (newloc<9 && newloc!=0 && closng)
		{       rspeak(130);    /* if closing leave only by     */
			newloc=loc;     /*      main office             */
			if (!panic) clock2=15;
			panic=TRUE;
		}

		rval=fdwarf();          /* dwarf stuff                  */
		if (rval==99) die(99);

	l2000:  if (loc==0) die(99);    /* label 2000                   */
		kk = &stext[loc];
		if ((abb[loc]%abbnum)==0 || kk->seekadr==0)
			kk = &ltext[loc];
		if (!forced(loc) && dark(0))
		{       if (wzdark && pct(35))
			{       die(90);
				goto l2000;
			}
			kk = &rtext[16];
		}
	l2001:  if (toting(bear)) rspeak(141);  /* 2001                 */
		speak(kk);
		k=1;
		if (forced(loc))
			goto l8;
		if (loc==33 && pct(25)&&!closng) rspeak(8);
		if (!dark(0))
		{       abb[loc]++;
			for (i=atloc[loc]; i!=0; i=link[i])     /*2004  */
			{       obj=i;
				if (obj>100) obj -= 100;
				if (obj==steps && toting(nugget)) continue;
				if (prop[obj]<0)
				{       if (closed) continue;
					prop[obj]=0;
					if (obj==rug||obj==chain)
						prop[obj]=1;
					tally--;
					if (tally==tally2 && tally != 0)
						if (limit>35) limit=35;
				}
				ll =  prop[obj];   /* 2006         */
				if (obj==steps && loc==fixed[steps])
					ll = 1;
				pspeak(obj, ll);
			}                                       /* 2008 */
			goto l2012;
	l2009:          k=54;                   /* 2009                 */
	l2010:          spk=k;
	l2011:          rspeak(spk);
		}
	l2012:  verb=0;                         /* 2012                 */
		obj=0;
	l2600:	checkhints();                   /* to 2600-2602         */
		if (closed)
		{       if (prop[oyster]<0 && toting(oyster))
				pspeak(oyster,1);
			for (i=1; i<100; i++)
				if (toting(i)&&prop[i]<0)       /*2604  */
					prop[i] = -1-prop[i];
		}
		wzdark=dark(0);                 /* 2605                 */
		if (knfloc>0 && knfloc!=loc) knfloc=1;
		getin(&wd1,&wd2);
		if (delhit)                     /* user typed a DEL     */
		{       delhit=0;               /* reset counter        */
			copystr("quit",wd1);    /* pretend he's quitting*/
			*wd2=0;
		}
	l2608:  if ((foobar = -foobar)>0) foobar=0;     /* 2608         */
		/* should check here for "magic mode"                   */
		turns++;
		if (demo && turns>=SHORT) done(1);      /* to 13000     */

		if (verb==say && *wd2!=0) verb=0;
		if (verb==say)
			goto l4090;
		if (tally==0 && loc>=15 && loc!=33) clock1--;
		if (clock1==0)
		{       closing();                      /* to 10000     */
			goto l19999;
		}
		if (clock1<0) clock2--;
		if (clock2==0)
		{       caveclose();            /* to 11000             */
			continue;               /* back to 2            */
		}
		if (prop[lamp]==1) limit--;
		if (limit<=30 && here(batter) && prop[batter]==0
			&& here(lamp))
		{       rspeak(188);            /* 12000                */
			prop[batter]=1;
			if (toting(batter)) drop(batter,loc);
			limit=limit+2500;
			lmwarn=FALSE;
			goto l19999;
		}
		if (limit==0)
		{       limit = -1;             /* 12400                */
			prop[lamp]=0;
			rspeak(184);
			goto l19999;
		}
		if (limit<0&&loc<=8)
		{       rspeak(185);            /* 12600                */
			gaveup=TRUE;
			done(2);                /* to 20000             */
		}
		if (limit<=30)
		{       if (lmwarn|| !here(lamp)) goto l19999;  /*12200*/
			lmwarn=TRUE;
			spk=187;
			if (place[batter]==0) spk=183;
			if (prop[batter]==1) spk=189;
			rspeak(spk);
		}
	l19999: k=43;
		if (liqloc(loc)==water) k=70;
		if (weq(wd1,"enter") &&
		    (weq(wd2,"strea")||weq(wd2,"water")))
			goto l2010;
		if (weq(wd1,"enter") && *wd2!=0) goto l2800;
		if ((!weq(wd1,"water")&&!weq(wd1,"oil"))
		    || (!weq(wd2,"plant")&&!weq(wd2,"door")))
			goto l2610;
		if (at(vocab(wd2,1))) copystr("pour",wd2);

	l2610:  if (weq(wd1,"west"))
			if (++iwest==10) rspeak(17);
	l2630:  i=vocab(wd1,-1);
		if (i== -1)
		{       spk=60;                 /* 3000         */
			if (pct(20)) spk=61;
			if (pct(20)) spk=13;
			rspeak(spk);
			goto l2600;
		}
		k=i%1000;
		kq=i/1000+1;
		switch(kq)
		{   case 1: goto l8;
		    case 2: goto l5000;
		    case 3: goto l4000;
		    case 4: goto l2010;
		    default:
			printf("Error 22\n");
			exit(0);
		}

	l8:
		switch(march())
		{   case 2: continue;           /* i.e. goto l2         */
		    case 99:
			switch(die(99))
			{   case 2000: goto l2000;
			    default: bug(111);
			}
		    default: bug(110);
		}

	l2800:  copystr(wd2,wd1);
		*wd2=0;
		goto l2610;

	l4000:  verb=k;
		spk=actspk[verb];
		if (*wd2!=0 && verb!=say) goto l2800;
		if (verb==say) obj= *wd2;
		if (obj!=0) goto l4090;
	l4080:
		switch(verb)
		{   case 1:                     /* take = 8010          */
			if (atloc[loc]==0||link[atloc[loc]]!=0) goto l8000;
			for (i=1; i<=5; i++)
				if (dloc[i]==loc&&dflag>=2) goto l8000;
			obj=atloc[loc];
			goto l9010;
		    case 2: case 3: case 9:     /* 8000 : drop,say,wave */
		    case 10: case 16: case 17:  /* calm,rub,toss        */
		    case 19: case 21: case 28:  /* find,feed,break      */
		    case 29:                    /* wake                 */
		l8000:  printf("%s what?\n",wd1);
			obj=0;
			goto l2600;
		    case 4: case 6:             /* 8040 open,lock       */
			spk=28;
			if (here(clam)) obj=clam;
			if (here(oyster)) obj=oyster;
			if (at(door)) obj=door;
			if (at(grate)) obj=grate;
			if (obj!=0 && here(chain)) goto l8000;
			if (here(chain)) obj=chain;
			if (obj==0) goto l2011;
			goto l9040;
		    case 5: goto l2009;         /* nothing              */
		    case 7: goto l9070;         /* on                   */
		    case 8: goto l9080;         /* off                  */
		    case 11: goto l8000;        /* walk                 */
		    case 12: goto l9120;        /* kill                 */
		    case 13: goto l9130;        /* pour                 */
		    case 14:                    /* eat: 8140            */