xref: /dragonfly/games/adventure/main.c (revision 984263bc)
1 /*-
2  * Copyright (c) 1991, 1993
3  *	The Regents of the University of California.  All rights reserved.
4  *
5  * The game adventure was originally written in Fortran by Will Crowther
6  * and Don Woods.  It was later translated to C and enhanced by Jim
7  * Gillogly.  This code is derived from software contributed to Berkeley
8  * by Jim Gillogly at The Rand Corporation.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  * 3. All advertising materials mentioning features or use of this software
19  *    must display the following acknowledgement:
20  *	This product includes software developed by the University of
21  *	California, Berkeley and its contributors.
22  * 4. Neither the name of the University nor the names of its contributors
23  *    may be used to endorse or promote products derived from this software
24  *    without specific prior written permission.
25  *
26  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36  * SUCH DAMAGE.
37  */
38 
39 #ifndef lint
40 static const char copyright[] =
41 "@(#) Copyright (c) 1991, 1993\n\
42 	The Regents of the University of California.  All rights reserved.\n";
43 #endif /* not lint */
44 
45 #ifndef lint
46 #if 0
47 static char sccsid[] = "@(#)main.c	8.1 (Berkeley) 6/2/93";
48 #endif
49 static const char rcsid[] =
50  "$FreeBSD: src/games/adventure/main.c,v 1.9.2.1 2001/03/05 11:43:11 kris Exp $";
51 #endif /* not lint */
52 
53 /*      Re-coding of advent in C: main program                          */
54 
55 #include <sys/file.h>
56 #include <errno.h>
57 #include <sys/types.h>
58 #include <signal.h>
59 #include <stdio.h>
60 #include <string.h>
61 #include <unistd.h>
62 #include "hdr.h"
63 
64 
65 int
66 main(int argc, char **argv)
67 {
68 	int i;
69 	int rval,ll;
70 	struct text *kk;
71 
72 	/* revoke */
73 	setgid(getgid());
74 
75 	init();         /* Initialize everything */
76 	signal(SIGINT,trapdel);
77 
78 	if (argc > 1)   /* Restore file specified */
79 	{               /* Restart is label 8305 (Fortran) */
80 		i = restore(argv[1]);       /* See what we've got */
81 		switch(i)
82 		{
83 		    case 0:     /* The restore worked fine */
84 			yea=Start();
85 			k=null;
86 			unlink(argv[1]);/* Don't re-use the save */
87 			goto l8;        /* Get where we're going */
88 		    case 1:             /* Couldn't open it */
89 			exit(1);        /* So give up */
90 		    case 2:             /* Oops -- file was altered */
91 			rspeak(202);    /* You dissolve */
92 			exit(1);        /* File could be non-adventure */
93 		}                       /* So don't unlink it. */
94 	}
95 
96 	startup();              /* prepare for a user           */
97 
98 	for (;;)                        /* main command loop (label 2)  */
99 	{       if (newloc<9 && newloc!=0 && closng)
100 		{       rspeak(130);    /* if closing leave only by     */
101 			newloc=loc;     /*      main office             */
102 			if (!panic) clock2=15;
103 			panic=TRUE;
104 		}
105 
106 		rval=fdwarf();          /* dwarf stuff                  */
107 		if (rval==99) die(99);
108 
109 	l2000:  if (loc==0) die(99);    /* label 2000                   */
110 		kk = &stext[loc];
111 		if ((abb[loc]%abbnum)==0 || kk->seekadr==0)
112 			kk = &ltext[loc];
113 		if (!forced(loc) && dark())
114 		{       if (wzdark && pct(35))
115 			{       die(90);
116 				goto l2000;
117 			}
118 			kk = &rtext[16];
119 		}
120 		if (toting(bear)) rspeak(141);  /* 2001                 */
121 		speak(kk);
122 		k=1;
123 		if (forced(loc))
124 			goto l8;
125 		if (loc==33 && pct(25)&&!closng) rspeak(8);
126 		if (!dark())
127 		{       abb[loc]++;
128 			for (i=atloc[loc]; i!=0; i=linkx[i])     /*2004  */
129 			{       obj=i;
130 				if (obj>100) obj -= 100;
131 				if (obj==steps && toting(nugget)) continue;
132 				if (prop[obj]<0)
133 				{       if (closed) continue;
134 					prop[obj]=0;
135 					if (obj==rug||obj==chain)
136 						prop[obj]=1;
137 					tally--;
138 					if (tally==tally2 && tally != 0)
139 						if (limit>35) limit=35;
140 				}
141 				ll =  prop[obj];   /* 2006         */
142 				if (obj==steps && loc==fixed[steps])
143 					ll = 1;
144 				pspeak(obj, ll);
145 			}                                       /* 2008 */
146 			goto l2012;
147 	l2009:          k=54;                   /* 2009                 */
148 	l2010:          spk=k;
149 	l2011:          rspeak(spk);
150 		}
151 	l2012:  verb=0;                         /* 2012                 */
152 		obj=0;
153 	l2600:	checkhints();                   /* to 2600-2602         */
154 		if (closed)
155 		{       if (prop[oyster]<0 && toting(oyster))
156 				pspeak(oyster,1);
157 			for (i=1; i<100; i++)
158 				if (toting(i)&&prop[i]<0)       /*2604  */
159 					prop[i] = -1-prop[i];
160 		}
161 		wzdark=dark();                  /* 2605                 */
162 		if (knfloc>0 && knfloc!=loc) knfloc=1;
163 		getin(&wd1,&wd2);
164 		if (delhit)                     /* user typed a DEL     */
165 		{       delhit=0;               /* reset counter        */
166 			strcpy(wd1,"quit");    /* pretend he's quitting*/
167 			*wd2=0;
168 		}
169 	l2608:  if ((foobar = -foobar)>0) foobar=0;     /* 2608         */
170 		/* should check here for "magic mode"                   */
171 		turns++;
172 		if (demo && turns>=SHORT) done(1);      /* to 13000     */
173 
174 		if (verb==say && *wd2!=0) verb=0;
175 		if (verb==say)
176 			goto l4090;
177 		if (tally==0 && loc>=15 && loc!=33) clock1--;
178 		if (clock1==0)
179 		{       closing();                      /* to 10000     */
180 			goto l19999;
181 		}
182 		if (clock1<0) clock2--;
183 		if (clock2==0)
184 		{       caveclose();            /* to 11000             */
185 			continue;               /* back to 2            */
186 		}
187 		if (prop[lamp]==1) limit--;
188 		if (limit<=30 && here(batter) && prop[batter]==0
189 			&& here(lamp))
190 		{       rspeak(188);            /* 12000                */
191 			prop[batter]=1;
192 			if (toting(batter)) drop(batter,loc);
193 			limit=limit+2500;
194 			lmwarn=FALSE;
195 			goto l19999;
196 		}
197 		if (limit==0)
198 		{       limit = -1;             /* 12400                */
199 			prop[lamp]=0;
200 			rspeak(184);
201 			goto l19999;
202 		}
203 		if (limit<0&&loc<=8)
204 		{       rspeak(185);            /* 12600                */
205 			gaveup=TRUE;
206 			done(2);                /* to 20000             */
207 		}
208 		if (limit<=30)
209 		{       if (lmwarn|| !here(lamp)) goto l19999;  /*12200*/
210 			lmwarn=TRUE;
211 			spk=187;
212 			if (place[batter]==0) spk=183;
213 			if (prop[batter]==1) spk=189;
214 			rspeak(spk);
215 		}
216 	l19999: k=43;
217 		if (liqloc(loc)==water) k=70;
218 		if (!strncmp(wd1,"enter",5) &&
219 		    (!strncmp(wd2,"strea",5)||!strncmp(wd2,"water",5)))
220 			goto l2010;
221 		if (!strncmp(wd1,"enter",5) && *wd2!=0) goto l2800;
222 		if ((strncmp(wd1,"water",5)&&strncmp(wd1,"oil",3))
223 		    || (strncmp(wd2,"plant",5)&&strncmp(wd2,"door",4)))
224 			goto l2610;
225 		if (at(vocab(wd2,1,0))) strcpy(wd2,"pour");
226 
227 	l2610:  if (!strncmp(wd1,"west",4))
228 			if (++iwest==10) rspeak(17);
229 	l2630:  i=vocab(wd1,-1,0);
230 		if (i== -1)
231 		{       spk=60;                 /* 3000         */
232 			if (pct(20)) spk=61;
233 			if (pct(20)) spk=13;
234 			rspeak(spk);
235 			goto l2600;
236 		}
237 		k=i%1000;
238 		kq=i/1000+1;
239 		switch(kq)
240 		{   case 1: goto l8;
241 		    case 2: goto l5000;
242 		    case 3: goto l4000;
243 		    case 4: goto l2010;
244 		    default:
245 			bug(22);
246 		}
247 
248 	l8:
249 		switch(march())
250 		{   case 2: continue;           /* i.e. goto l2         */
251 		    case 99:
252 			die(99);
253 			goto l2000;
254 		    default: bug(110);
255 		}
256 
257 	l2800:  strcpy(wd1,wd2);
258 		*wd2=0;
259 		goto l2610;
260 
261 	l4000:  verb=k;
262 		spk=actspk[verb];
263 		if (*wd2!=0 && verb!=say) goto l2800;
264 		if (verb==say) obj= *wd2;
265 		if (obj!=0) goto l4090;
266 		switch(verb)
267 		{   case 1:                     /* take = 8010          */
268 			if (atloc[loc]==0||linkx[atloc[loc]]!=0) goto l8000;
269 			for (i=1; i<=5; i++)
270 				if (dloc[i]==loc&&dflag>=2) goto l8000;
271 			obj=atloc[loc];
272 			goto l9010;
273 		    case 2: case 3: case 9:     /* 8000 : drop,say,wave */
274 		    case 10: case 16: case 17:  /* calm,rub,toss        */
275 		    case 19: case 21: case 28:  /* find,feed,break      */
276 		    case 29:                    /* wake                 */
277 		l8000:  printf("%s what?\n",wd1);
278 			obj=0;
279 			goto l2600;
280 		    case 4: case 6:             /* 8040 open,lock       */
281 			spk=28;
282 			if (here(clam)) obj=clam;
283 			if (here(oyster)) obj=oyster;
284 			if (at(door)) obj=door;
285 			if (at(grate)) obj=grate;
286 			if (obj!=0 && here(chain)) goto l8000;
287 			if (here(chain)) obj=chain;
288 			if (obj==0) goto l2011;
289 			goto l9040;
290 		    case 5: goto l2009;         /* nothing              */
291 		    case 7: goto l9070;         /* on                   */
292 		    case 8: goto l9080;         /* off                  */
293 		    case 11: goto l8000;        /* walk                 */
294 		    case 12: goto l9120;        /* kill                 */
295 		    case 13: goto l9130;        /* pour                 */
296 		    case 14:                    /* eat: 8140            */
297 			if (!here(food)) goto l8000;
298 		l8142:  dstroy(food);
299 			spk=72;
300 			goto l2011;
301 		    case 15: goto l9150;        /* drink                */
302 		    case 18:                    /* quit: 8180           */
303 			gaveup=yes(22,54,54);
304 			if (gaveup) done(2);    /* 8185                 */
305 			goto l2012;
306 		    case 20:                    /* invent=8200          */
307 			spk=98;
308 			for (i=1; i<=100; i++)
309 			{       if (i!=bear && toting(i))
310 				{       if (spk==98) rspeak(99);
311 					blklin=FALSE;
312 					pspeak(i,-1);
313 					blklin=TRUE;
314 					spk=0;
315 				}
316 			}
317 			if (toting(bear)) spk=141;
318 			goto l2011;
319 		    case 22: goto l9220;        /* fill                 */
320 		    case 23: goto l9230;        /* blast                */
321 		    case 24:                    /* score: 8240          */
322 			scorng=TRUE;
323 			printf("If you were to quit now, you would score");
324 			printf(" %d out of a possible ",score());
325 			printf("%d.",mxscor);
326 			scorng=FALSE;
327 			gaveup=yes(143,54,54);
328 			if (gaveup) done(2);
329 			goto l2012;
330 		    case 25:                    /* foo: 8250            */
331 			k=vocab(wd1,3,0);
332 			spk=42;
333 			if (foobar==1-k) goto l8252;
334 			if (foobar!=0) spk=151;
335 			goto l2011;
336 		l8252:  foobar=k;
337 			if (k!=4) goto l2009;
338 			foobar=0;
339 			if (place[eggs]==plac[eggs]
340 				||(toting(eggs)&&loc==plac[eggs])) goto l2011;
341 			if (place[eggs]==0&&place[troll]==0&&prop[troll]==0)
342 				prop[troll]=1;
343 			k=2;
344 			if (here(eggs)) k=1;
345 			if (loc==plac[eggs]) k=0;
346 			move(eggs,plac[eggs]);
347 			pspeak(eggs,k);
348 			goto l2012;
349 		    case 26:                    /* brief=8260           */
350 			spk=156;
351 			abbnum=10000;
352 			detail=3;
353 			goto l2011;
354 		    case 27:                    /* read=8270            */
355 			if (here(magzin)) obj=magzin;
356 			if (here(tablet)) obj=obj*100+tablet;
357 			if (here(messag)) obj=obj*100+messag;
358 			if (closed&&toting(oyster)) obj=oyster;
359 			if (obj>100||obj==0||dark()) goto l8000;
360 			goto l9270;
361 		    case 30:                    /* suspend=8300         */
362 			spk=201;
363 			if (demo) goto l2011;
364 			printf("I can suspend your adventure for you so");
365 			printf(" you can resume later, but\n");
366 			printf("you will have to wait at least");
367 			printf(" %d minutes before continuing.",latncy);
368 			if (!yes(200,54,54)) goto l2012;
369 			datime(&saved,&savet);
370 			ciao();                 /* Do we quit? */
371 			continue;               /* Maybe not */
372 		    case 31:                    /* hours=8310           */
373 			printf("Colossal cave is closed 9am-5pm Mon ");
374 			printf("through Fri except holidays.\n");
375 			goto l2012;
376 		    default: bug(23);
377 		}
378 
379 	l4090:
380 		switch(verb)
381 		{   case 1:                     /* take = 9010          */
382 	l9010:          switch(trtake())
383 			{   case 2011: goto l2011;
384 			    case 9220: goto l9220;
385 			    case 2009: goto l2009;
386 			    case 2012: goto l2012;
387 			    default: bug(102);
388 			}
389 	l9020:      case 2:                     /* drop = 9020          */
390 			switch(trdrop())
391 			{   case 2011: goto l2011;
392 			    case 19000: done(3);
393 			    case 2012: goto l2012;
394 			    default: bug(105);
395 			}
396 		    case 3:
397 			switch(trsay())
398 			{   case 2012: goto l2012;
399 			    case 2630: goto l2630;
400 			    default: bug(107);
401 			}
402 	l9040:      case 4:  case 6:            /* open, close          */
403 			switch(tropen())
404 			{   case 2011: goto l2011;
405 			    case 2010: goto l2010;
406 			    default: bug(106);
407 			}
408 		    case 5: goto l2009;         /* nothing              */
409 		    case 7:                     /* on   9070            */
410 	l9070:          if (!here(lamp))  goto l2011;
411 			spk=184;
412 			if (limit<0) goto l2011;
413 			prop[lamp]=1;
414 			rspeak(39);
415 			if (wzdark) goto l2000;
416 			goto l2012;
417 
418 		    case 8:                     /* off                  */
419 	l9080:          if (!here(lamp)) goto l2011;
420 			prop[lamp]=0;
421 			rspeak(40);
422 			if (dark()) rspeak(16);
423 			goto l2012;
424 
425 		    case 9:                     /* wave                 */
426 			if ((!toting(obj))&&(obj!=rod||!toting(rod2)))
427 				spk=29;
428 			if (obj!=rod||!at(fissur)||!toting(obj)||closng)
429 				goto l2011;
430 			prop[fissur]=1-prop[fissur];
431 			pspeak(fissur,2-prop[fissur]);
432 			goto l2012;
433 		    case 10: case 11: case 18:  /* calm, walk, quit     */
434 		    case 24: case 25: case 26:  /* score, foo, brief    */
435 		    case 30: case 31:           /* suspend, hours       */
436 			     goto l2011;
437 	l9120:      case 12:                    /* kill                 */
438 			switch(trkill())
439 			{   case 8000: goto l8000;
440 			    case 8: goto l8;
441 			    case 2011: goto l2011;
442 			    case 2608: goto l2608;
443 			    case 19000: done(3);
444 			    default: bug(112);
445 			}
446 	l9130:      case 13:                    /* pour                 */
447 			if (obj==bottle||obj==0) obj=liq();
448 			if (obj==0) goto l8000;
449 			if (!toting(obj)) goto l2011;
450 			spk=78;
451 			if (obj!=oil&&obj!=water) goto l2011;
452 			prop[bottle]=1;
453 			place[obj]=0;
454 			spk=77;
455 			if (!(at(plant)||at(door))) goto l2011;
456 			if (at(door))
457 			{       prop[door]=0;   /* 9132                 */
458 				if (obj==oil) prop[door]=1;
459 				spk=113+prop[door];
460 				goto l2011;
461 			}
462 			spk=112;
463 			if (obj!=water) goto l2011;
464 			pspeak(plant,prop[plant]+1);
465 			prop[plant]=(prop[plant]+2)% 6;
466 			prop[plant2]=prop[plant]/2;
467 			k=null;
468 			goto l8;
469 		    case 14:                    /* 9140 - eat           */
470 			if (obj==food) goto l8142;
471 			if (obj==bird||obj==snake||obj==clam||obj==oyster
472 			    ||obj==dwarf||obj==dragon||obj==troll
473 			    ||obj==bear) spk=71;
474 			goto l2011;
475 	l9150:      case 15:                    /* 9150 - drink         */
476 			if (obj==0&&liqloc(loc)!=water&&(liq()!=water
477 				||!here(bottle))) goto l8000;
478 			if (obj!=0&&obj!=water) spk=110;
479 			if (spk==110||liq()!=water||!here(bottle))
480 				goto l2011;
481 			prop[bottle]=1;
482 			place[water]=0;
483 			spk=74;
484 			goto l2011;
485 		    case 16:                    /* 9160: rub            */
486 			if (obj!=lamp) spk=76;
487 			goto l2011;
488 		    case 17:                    /* 9170: throw          */
489 			switch(trtoss())
490 			{   case 2011: goto l2011;
491 			    case 9020: goto l9020;
492 			    case 9120: goto l9120;
493 			    case 8: goto l8;
494 			    case 9210: goto l9210;
495 			    default: bug(113);
496 			}
497 		    case 19: case 20:           /* 9190: find, invent   */
498 			if (at(obj)||(liq()==obj&&at(bottle))
499 				||k==liqloc(loc)) spk=94;
500 			for (i=1; i<=5; i++)
501 				if (dloc[i]==loc&&dflag>=2&&obj==dwarf)
502 					spk=94;
503 			if (closed) spk=138;
504 			if (toting(obj)) spk=24;
505 			goto l2011;
506 	l9210:      case 21:                    /* feed                 */
507 			switch(trfeed())
508 			{   case 2011: goto l2011;
509 			    default: bug(114);
510 			}
511 	l9220:      case 22:                    /* fill                 */
512 			switch(trfill())
513 			{   case 2011: goto l2011;
514 			    case 8000: goto l8000;
515 			    case 9020: goto l9020;
516 			    default: bug(115);
517 			}
518 	l9230:      case 23:                    /* blast                */
519 			if (prop[rod2]<0||!closed) goto l2011;
520 			bonus=133;
521 			if (loc==115) bonus=134;
522 			if (here(rod2)) bonus=135;
523 			rspeak(bonus);
524 			done(2);
525 	l9270:      case 27:                    /* read                 */
526 			if (dark()) goto l5190;
527 			if (obj==magzin) spk=190;
528 			if (obj==tablet) spk=196;
529 			if (obj==messag) spk=191;
530 			if (obj==oyster&&hinted[2]&&toting(oyster)) spk=194;
531 			if (obj!=oyster||hinted[2]||!toting(oyster)
532 				||!closed) goto l2011;
533 			hinted[2]=yes(192,193,54);
534 			goto l2012;
535 		    case 28:                    /* break                */
536 			if (obj==mirror) spk=148;
537 			if (obj==vase&&prop[vase]==0)
538 			{       spk=198;
539 				if (toting(vase)) drop(vase,loc);
540 				prop[vase]=2;
541 				fixed[vase]= -1;
542 				goto l2011;
543 			}
544 			if (obj!=mirror||!closed) goto l2011;
545 			rspeak(197);
546 			done(3);
547 
548 		    case 29:                    /* wake                 */
549 			if (obj!=dwarf||!closed) goto l2011;
550 			rspeak(199);
551 			done(3);
552 
553 		    default: bug(24);
554 		}
555 
556 	l5000:
557 		obj=k;
558 		if (fixed[k]!=loc && !here(k)) goto l5100;
559 	l5010:  if (*wd2!=0) goto l2800;
560 		if (verb!=0) goto l4090;
561 		printf("What do you want to do with the %s?\n",wd1);
562 		goto l2600;
563 	l5100:  if (k!=grate) goto l5110;
564 		if (loc==1||loc==4||loc==7) k=dprssn;
565 		if (loc>9&&loc<15) k=entrnc;
566 		if (k!=grate) goto l8;
567 	l5110:  if (k!=dwarf) goto l5120;
568 		for (i=1; i<=5; i++)
569 			if (dloc[i]==loc&&dflag>=2) goto l5010;
570 	l5120:  if ((liq()==k&&here(bottle))||k==liqloc(loc)) goto l5010;
571 		if (obj!=plant||!at(plant2)||prop[plant2]==0) goto l5130;
572 		obj=plant2;
573 		goto l5010;
574 	l5130:  if (obj!=knife||knfloc!=loc) goto l5140;
575 		knfloc = -1;
576 		spk=116;
577 		goto l2011;
578 	l5140:  if (obj!=rod||!here(rod2)) goto l5190;
579 		obj=rod2;
580 		goto l5010;
581 	l5190:  if ((verb==find||verb==invent)&&*wd2==0) goto l5010;
582 		printf("I see no %s here\n",wd1);
583 		goto l2012;
584 	}
585 }
586