2 * Copyright (c) 1991, 1993
3 * The Regents of the University of California. All rights reserved.
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.
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
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.
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
41 static char sccsid[] = "@(#)subr.c 8.1 (Berkeley) 5/31/93";
43 static const char rcsid[] =
44 "$FreeBSD: src/games/adventure/subr.c,v 1.7.2.1 2001/03/05 11:43:11 kris Exp $";
47 /* Re-coding of advent in C: subroutines from main */
53 static void badmove (void);
54 static int bitset (int,int);
55 static int dropper (void);
56 static int liq2 (int);
57 static int mback (void);
58 static int specials (void);
59 static int trbridge (void);
61 /* Statement functions */
65 { if (place[objj] == -1) return(TRUE);
72 { if (place[objj]==loc || toting(objj)) return(TRUE);
79 { if (place[objj]==loc || fixed[objj]==loc) return(TRUE);
86 { return((1-pbotl)*water+(pbotl/2)*(water+oil));
93 if (i>-1-i) return(liq2(i));
94 else return(liq2(-1-i));
98 liqloc(locc) /* may want to clean this one up a bit */
111 { if (cond[l] & setbit[n]) return(TRUE);
118 { if (cond[locc]==2) return(TRUE);
124 { if ((cond[loc]%2)==0 && (prop[lamp]==0 || !here(lamp)))
132 { if (ran(100)<n) return(TRUE);
142 if (newloc!=loc&&!forced(loc)&&!bitset(loc,3))
143 { for (i=1; i<=5; i++)
144 { if (odloc[i]!=newloc||!dseen[i]) continue;
151 if (loc==0||forced(loc)||bitset(newloc,3)) return(2000);
153 { if (loc>=15) dflag=1;
156 if (dflag==1) /* 6000 */
157 { if (loc<15||pct(95)) return(2000);
161 if (pct(50)&&saved== -1) dloc[j]=0; /* 6001 */
164 { if (dloc[i]==loc) dloc[i]=daltlc;
165 odloc[i]=dloc[i]; /* 6002 */
171 dtotal=attack=stick=0; /* 6010 */
172 for (i=1; i<=6; i++) /* loop to 6030 */
173 { if (dloc[i]==0) continue;
175 for (kk=travel[dloc[i]]; kk!=0; kk=kk->next)
177 if (newloc>300||newloc<15||newloc==odloc[i]
178 ||(j>1&&newloc==tk[j-1])||j>=20
179 ||newloc==dloc[i]||forced(newloc)
180 ||(i==6&&bitset(newloc,3))
181 ||kk->conditions==100) continue;
184 tk[j]=odloc[i]; /* 6016 */
189 dseen[i]=(dseen[i]&&loc>=15)||(dloc[i]==loc||odloc[i]==loc);
190 if (!dseen[i]) continue; /* i.e. goto 6030 */
192 if (i==6) /* pirate's spotted him */
193 { if (loc==chloc||prop[chest]>=0) continue;
195 for (j=50; j<=maxtrs; j++) /* loop to 6020 */
196 { if (j==pyram&&(loc==plac[pyram]
197 || loc==plac[emrald])) goto l6020;
198 if (toting(j)) goto l6022;
199 l6020: if (here(j)) k=1;
201 if (tally==tally2+1 && k==0 && place[chest]==0
202 &&here(lamp) && prop[lamp]==1) goto l6025;
203 if (odloc[6]!=dloc[6]&&pct(20))
205 continue; /* to 6030 */
207 if (place[messag]==0) move(chest,chloc);
209 for (j=50; j<=maxtrs; j++) /* loop to 6023 */
210 { if (j==pyram && (loc==plac[pyram]
211 || loc==plac[emrald])) continue;
212 if (at(j)&&fixed[j]==0) carry(j,loc);
213 if (toting(j)) drop(j,chloc);
215 l6024: dloc[6]=odloc[6]=chloc;
224 if (odloc[i]!=dloc[i]) continue;
226 if (knfloc>=0) knfloc=loc;
227 if (ran(1000)<95*(dflag-2)) stick++;
229 if (dtotal==0) return(2000);
231 { printf("There are %d threatening little dwarves ",dtotal);
232 printf("in the room with you.\n");
235 if (attack==0) return(2000);
236 if (dflag==2) dflag=3;
237 if (saved!= -1) dflag=20;
239 { printf("%d of them throw knives at you!\n",attack);
241 l82: if (stick<=1) /* 82 */
243 if (stick==0) return(2000);
246 printf("%d of them get you!\n",stick); /* 83 */
257 march() /* label 8 */
260 if ((tkk=travel[newloc=loc])==0) bug(26);
261 if (k==null) return(2);
262 if (k==cave) /* 40 */
263 { if (loc<8) rspeak(57);
264 if (loc>=8) rspeak(58);
267 if (k==look) /* 30 */
268 { if (detail++<3) rspeak(15);
273 if (k==back) /* 20 */
283 for (; tkk!=0; tkk=tkk->next)
284 if (tkk->tverb==1 || tkk->tverb==k) break;
289 l11: ll1=tkk->conditions; /* 11 */
291 newloc=ll1; /* newloc=conditions */
292 k=newloc%100; /* k used for prob */
294 { if (newloc<=100) /* 13 */
295 { if (newloc!=0&&!pct(newloc)) goto l12; /* 14 */
296 l16: newloc=ll2; /* newloc=location */
297 if (newloc<=300) return(2);
299 switch(specials())/* to 30000 */
309 if (toting(k)||(newloc>200&&at(k))) goto l16;
312 if (prop[k]!=(newloc/100)-3) goto l16; /* newloc still conditions*/
313 l12: /* alternative to probability move */
314 for (; tkk!=0; tkk=tkk->next)
315 if (tkk->tloc!=ll2 || tkk->conditions!=ll1) break;
324 { struct travlist *tk2,*j;
326 if (forced(k=oldloc)) k=oldlc2; /* k=location */
334 for (; tkk!=0; tkk=tkk->next) /* 21 */
337 { k=tkk->tverb; /* k back to verb */
343 if (forced(ll) && k==j->tloc) tk2=tkk;
358 specials() /* 30000 */
359 { switch(newloc -= 300)
360 { case 1: /* 30100 */
362 if (holdng==0||(holdng==1&&toting(emrald))) return(2);
369 case 3: /* to 30300 */
379 trbridge() /* 30300 */
380 { if (prop[troll]==1)
385 move(troll,plac[troll]);
386 move(troll+100,fixd[troll]);
391 newloc=plac[troll]+fixd[troll]-loc; /* 30310 */
392 if (prop[troll]==0) prop[troll]=1;
393 if (!toting(bear)) return(2);
400 if (prop[spices]<0) tally2++;
409 if (k>=43 && k<=50) spk=9;
410 if (k==29||k==30) spk=9;
411 if (k==7||k==36||k==37) spk=10;
412 if (k==11||k==19) spk=11;
413 if (verb==find||verb==invent) spk=59;
414 if (k==62||k==65) spk=42;
422 { printf("Please tell jim@rand.org that fatal bug %d happened.\n",n);
428 checkhints() /* 2600 &c */
430 for (hint=4; hint<=hntmax; hint++)
431 { if (hinted[hint]) continue;
432 if (!bitset(loc,hint)) hintlc[hint]= -1;
434 if (hintlc[hint]<hints[hint][1]) continue;
436 { case 4: /* 40400 */
437 if (prop[grate]==0&&!here(keys)) goto l40010;
440 if (here(bird)&&toting(rod)&&obj==bird) goto l40010;
441 continue; /* i.e. goto l40030 */
443 if (here(snake)&&!here(bird)) goto l40010;
446 if (atloc[loc]==0&&atloc[oldloc]==0
447 && atloc[oldlc2]==0&&holdng>1) goto l40010;
450 if (prop[emrald]!= -1&&prop[pyram]== -1) goto l40010;
453 goto l40010; /* 40900 */
456 l40010: hintlc[hint]=0;
457 if (!yes(hints[hint][3],0,54)) continue;
458 printf("I am prepared to give you a hint, but it will ");
459 printf("cost you %d points.\n",hints[hint][2]);
460 hinted[hint]=yes(175,hints[hint][4],54);
461 l40020: hintlc[hint]=0;
469 if (*wd2!=0) strcpy(wd1,wd2);
471 if (i==62||i==65||i==71||i==2025)
476 printf("\nOkay, \"%s\".\n",wd2);
484 if (toting(obj)) return(2011); /* 9010 */
486 if (obj==plant&&prop[plant]<=0) spk=115;
487 if (obj==bear&&prop[bear]==1) spk=169;
488 if (obj==chain&&prop[bear]!=0) spk=170;
489 if (fixed[obj]!=0) return(2011);
490 if (obj==water||obj==oil)
491 { if (here(bottle)&&liq()==obj)
496 if (toting(bottle)&&prop[bottle]==1)
498 if (prop[bottle]!=1) spk=105;
499 if (!toting(bottle)) spk=104;
502 l9017: if (holdng>=7)
507 { if (prop[bird]!=0) goto l9014;
512 if (!toting(cage)) /* 9013 */
516 prop[bird]=1; /* 9015 */
518 l9014: if ((obj==bird||obj==cage)&&prop[bird]!=0)
519 carry(bird+cage-obj,loc);
522 if (obj==bottle && k!=0) place[k] = -1;
530 if (k==obj) obj=bottle;
531 if (obj==bottle&&k!=0) place[k]=0;
532 if (obj==cage&&prop[bird]!=0) drop(bird,loc);
533 if (obj==bird) prop[bird]=0;
541 if (toting(rod2)&&obj==rod&&!toting(rod)) obj=rod2;
542 if (!toting(obj)) return(2011);
543 if (obj==bird&&here(snake))
545 if (closed) return(19000);
550 if (obj==coins&&here(vend)) /* 9024 */
556 if (obj==bird&&at(dragon)&&prop[dragon]==0) /* 9025 */
560 if (place[snake]==plac[snake]) tally2--;
563 if (obj==bear&&at(troll)) /* 9026 */
567 move(troll2,plac[troll]);
568 move(troll2+100,fixd[troll]);
573 if (obj!=vase||loc==plac[pillow]) /* 9027 */
577 prop[vase]=2; /* 9028 */
578 if (at(pillow)) prop[vase]=0;
579 pspeak(vase,prop[vase]+1);
580 if (prop[vase]!=0) fixed[vase] = -1;
587 { if (obj==clam||obj==oyster)
589 if (obj==oyster) k=1;
591 if (toting(obj)) spk=120+k;
592 if (!toting(tridnt)) spk=122+k;
593 if (verb==lock) spk=61;
594 if (spk!=124) return(2011);
600 if (obj==door) spk=111;
601 if (obj==door&&prop[door]==1) spk=54;
602 if (obj==cage) spk=32;
603 if (obj==keys) spk=55;
604 if (obj==grate||obj==chain) spk=31;
605 if (spk!=31||!here(keys)) return(2011);
608 { spk=172; /* 9049: lock */
609 if (prop[chain]!=0) spk=34;
610 if (loc!=plac[chain]) spk=173;
611 if (spk!=172) return(2011);
613 if (toting(chain)) drop(chain,loc);
618 if (prop[bear]==0) spk=41;
619 if (prop[chain]==0) spk=37;
620 if (spk!=171) return(2011);
623 if (prop[bear]!=3) prop[bear]=2;
624 fixed[bear]=2-prop[bear];
629 if (!panic) clock2=15;
633 k=34+prop[grate]; /* 9043 */
635 if (verb==lock) prop[grate]=0;
645 if (dloc[i]==loc&&dflag>=2) break;
647 if (obj==0) /* 9122 */
648 { if (i!=0) obj=dwarf;
649 if (here(snake)) obj=obj*100+snake;
650 if (at(dragon)&&prop[dragon]==0) obj=obj*100+dragon;
651 if (at(troll)) obj=obj*100+troll;
652 if (here(bear)&&prop[bear]==0) obj=obj*100+bear;
653 if (obj>100) return(8000);
655 { if (here(bird)&&verb!=throw) obj=bird;
656 if (here(clam)||here(oyster)) obj=100*obj+clam;
657 if (obj>100) return(8000);
660 if (obj==bird) /* 9124 */
662 if (closed) return(2011);
665 if (place[snake]==plac[snake]) tally2++;
668 if (obj==0) spk=44; /* 9125 */
669 if (obj==clam||obj==oyster) spk=150;
670 if (obj==snake) spk=46;
671 if (obj==dwarf) spk=49;
672 if (obj==dwarf&&closed) return(19000);
673 if (obj==dragon) spk=147;
674 if (obj==troll) spk=157;
675 if (obj==bear) spk=165+(prop[bear]+1)/2;
676 if (obj!=dragon||prop[dragon]!=0) return(2011);
681 if (strncmp(wd1,"y",1)&&strncmp(wd1,"yes",3)) return(2608);
685 k=(plac[dragon]+fixd[dragon])/2;
690 for (obj=1; obj<=100; obj++)
691 if (place[obj]==plac[dragon]||place[obj]==fixd[dragon])
700 trtoss() /* 9170: throw */
702 if (toting(rod2)&&obj==rod&&!toting(rod)) obj=rod2;
703 if (!toting(obj)) return(2011);
704 if (obj>=50&&obj<=maxtrs&&at(troll))
705 { spk=159; /* 9178 */
709 drop(troll2,plac[troll]);
710 drop(troll2+100,fixd[troll]);
714 if (obj==food&&here(bear))
715 { obj=bear; /* 9177 */
718 if (obj!=axe) return(9020);
722 if (ran(3)==0||saved!= -1)
723 l9175: { rspeak(spk);
732 if (dkill==1) spk=149;
737 if (at(dragon)&&prop[dragon]==0)
740 if (at(troll)) goto l9175;
741 if (here(bear)&&prop[bear]==0)
760 if (obj==snake||obj==dragon||obj==troll)
762 if (obj==dragon&&prop[dragon]!=0) spk=110;
763 if (obj==troll) spk=182;
764 if (obj!=snake||closed||!here(bird)) return(2011);
772 { if (!here(food)) return(2011);
778 { if (prop[bear]==0) spk=102;
779 if (prop[bear]==3) spk=110;
780 if (!here(food)) return(2011);
797 if (liqloc(loc)==0) spk=144;
798 if (liqloc(loc)==0||!toting(vase)) return(2011);
802 return(9020); /* advent/10 goes to 9024 */
804 if (obj!=0&&obj!=bottle) return(2011);
805 if (obj==0&&!here(bottle)) return(8000);
807 if (liqloc(loc)==0) spk=106;
808 if (liq()!=0) spk=105;
809 if (spk!=107) return(2011);
810 prop[bottle]=((cond[loc]%4)/2)*2;
812 if (toting(bottle)) place[k]= -1;
819 closing() /* 10000 */
822 prop[grate]=prop[fissur]=0;
829 move(troll2,plac[troll]);
830 move(troll2+100,fixd[troll]);
832 if(prop[bear]!=3) dstroy(bear);
844 caveclose() /* 11000 */
846 prop[bottle]=put(bottle,115,1);
847 prop[plant]=put(plant,115,0);
848 prop[oyster]=put(oyster,115,0);
849 prop[lamp]=put(lamp,115,0);
850 prop[rod]=put(rod,115,0);
851 prop[dwarf]=put(dwarf,115,0);
857 prop[snake]=put(snake,116,1);
858 prop[bird]=put(bird,116,1);
859 prop[cage]=put(cage,116,0);
860 prop[rod2]=put(rod2,116,0);
861 prop[pillow]=put(pillow,116,0);
863 prop[mirror]=put(mirror,115,0);
866 for (i=1; i<=100; i++)
867 if (toting(i)) dstroy(i);