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4.4BSD snapshot (revision 8.1)
[unix-history] / usr / src / games / adventure / subr.c
/*-
* 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.
*
* %sccs.include.redist.c%
*/
#ifndef lint
static char sccsid[] = "@(#)subr.c 5.2 (Berkeley) %G%";
#endif /* not lint */
/* Re-coding of advent in C: subroutines from main */
# include "hdr.h"
/* Statement functions */
toting(objj)
int objj;
{ if (place[objj] == -1) return(TRUE);
else return(FALSE);
}
here(objj)
int objj;
{ if (place[objj]==loc || toting(objj)) return(TRUE);
else return(FALSE);
}
at(objj)
int objj;
{ if (place[objj]==loc || fixed[objj]==loc) return(TRUE);
else return (FALSE);
}
liq2(pbotl)
int pbotl;
{ return((1-pbotl)*water+(pbotl/2)*(water+oil));
}
liq(foo)
{ register int i;
i=prop[bottle];
if (i>-1-i) return(liq2(i));
else return(liq2(-1-i));
}
liqloc(locc) /* may want to clean this one up a bit */
int locc;
{ register int i,j,l;
i=cond[locc]/2;
j=((i*2)%8)-5;
l=cond[locc]/4;
l=l%2;
return(liq2(j*l+1));
}
bitset(l,n)
int l,n;
{ if (cond[l] & setbit[n]) return(TRUE);
return(FALSE);
}
forced(locc)
int locc;
{ if (cond[locc]==2) return(TRUE);
return(FALSE);
}
dark(foo)
{ if ((cond[loc]%2)==0 && (prop[lamp]==0 || !here(lamp)))
return(TRUE);
return(FALSE);
}
pct(n)
int n;
{ if (ran(100)<n) return(TRUE);
return(FALSE);
}
fdwarf() /* 71 */
{ register int i,j;
register struct travlist *kk;
if (newloc!=loc&&!forced(loc)&&!bitset(loc,3))
{ for (i=1; i<=5; i++)
{ if (odloc[i]!=newloc||!dseen[i]) continue;
newloc=loc;
rspeak(2);
break;
}
}
loc=newloc; /* 74 */
if (loc==0||forced(loc)||bitset(newloc,3)) return(2000);
if (dflag==0)
{ if (loc>=15) dflag=1;
return(2000);
}
if (dflag==1) /* 6000 */
{ if (loc<15||pct(95)) return(2000);
dflag=2;
for (i=1; i<=2; i++)
{ j=1+ran(5);
if (pct(50)&&saved== -1) dloc[j]=0; /* 6001 */
}
for (i=1; i<=5; i++)
{ if (dloc[i]==loc) dloc[i]=daltlc;
odloc[i]=dloc[i]; /* 6002 */
}
rspeak(3);
drop(axe,loc);
return(2000);
}
dtotal=attack=stick=0; /* 6010 */
for (i=1; i<=6; i++) /* loop to 6030 */
{ if (dloc[i]==0) continue;
j=1;
for (kk=travel[dloc[i]]; kk!=0; kk=kk->next)
{ newloc=kk->tloc;
if (newloc>300||newloc<15||newloc==odloc[i]
||(j>1&&newloc==tk[j-1])||j>=20
||newloc==dloc[i]||forced(newloc)
||(i==6&&bitset(newloc,3))
||kk->conditions==100) continue;
tk[j++]=newloc;
}
tk[j]=odloc[i]; /* 6016 */
if (j>=2) j--;
j=1+ran(j);
odloc[i]=dloc[i];
dloc[i]=tk[j];
dseen[i]=(dseen[i]&&loc>=15)||(dloc[i]==loc||odloc[i]==loc);
if (!dseen[i]) continue; /* i.e. goto 6030 */
dloc[i]=loc;
if (i==6) /* pirate's spotted him */
{ if (loc==chloc||prop[chest]>=0) continue;
k=0;
for (j=50; j<=maxtrs; j++) /* loop to 6020 */
{ if (j==pyram&&(loc==plac[pyram]
|| loc==plac[emrald])) goto l6020;
if (toting(j)) goto l6022;
l6020: if (here(j)) k=1;
} /* 6020 */
if (tally==tally2+1 && k==0 && place[chest]==0
&&here(lamp) && prop[lamp]==1) goto l6025;
if (odloc[6]!=dloc[6]&&pct(20))
rspeak(127);
continue; /* to 6030 */
l6022: rspeak(128);
if (place[messag]==0) move(chest,chloc);
move(messag,chloc2);
for (j=50; j<=maxtrs; j++) /* loop to 6023 */
{ if (j==pyram && (loc==plac[pyram]
|| loc==plac[emrald])) continue;
if (at(j)&&fixed[j]==0) carry(j,loc);
if (toting(j)) drop(j,chloc);
}
l6024: dloc[6]=odloc[6]=chloc;
dseen[6]=FALSE;
continue;
l6025: rspeak(186);
move(chest,chloc);
move(messag,chloc2);
goto l6024;
}
dtotal++; /* 6027 */
if (odloc[i]!=dloc[i]) continue;
attack++;
if (knfloc>=0) knfloc=loc;
if (ran(1000)<95*(dflag-2)) stick++;
} /* 6030 */
if (dtotal==0) return(2000);
if (dtotal!=1)
{ printf("There are %d threatening little dwarves ",dtotal);
printf("in the room with you.\n");
}
else rspeak(4);
if (attack==0) return(2000);
if (dflag==2) dflag=3;
if (saved!= -1) dflag=20;
if (attack!=1)
{ printf("%d of them throw knives at you!\n",attack);
k=6;
l82: if (stick<=1) /* 82 */
{ rspeak(k+stick);
if (stick==0) return(2000);
}
else
printf("%d of them get you!\n",stick); /* 83 */
oldlc2=loc;
return(99);
}
rspeak(5);
k=52;
goto l82;
}
march() /* label 8 */
{ register int ll1,ll2;
if ((tkk=travel[newloc=loc])==0) bug(26);
if (k==null) return(2);
if (k==cave) /* 40 */
{ if (loc<8) rspeak(57);
if (loc>=8) rspeak(58);
return(2);
}
if (k==look) /* 30 */
{ if (detail++<3) rspeak(15);
wzdark=FALSE;
abb[loc]=0;
return(2);
}
if (k==back) /* 20 */
{ switch(mback())
{ case 2: return(2);
case 9: goto l9;
default: bug(100);
}
}
oldlc2=oldloc;
oldloc=loc;
l9:
for (; tkk!=0; tkk=tkk->next)
if (tkk->tverb==1 || tkk->tverb==k) break;
if (tkk==0)
{ badmove();
return(2);
}
l11: ll1=tkk->conditions; /* 11 */
ll2=tkk->tloc;
newloc=ll1; /* newloc=conditions */
k=newloc%100; /* k used for prob */
if (newloc<=300)
{ if (newloc<=100) /* 13 */
{ if (newloc!=0&&!pct(newloc)) goto l12; /* 14 */
l16: newloc=ll2; /* newloc=location */
if (newloc<=300) return(2);
if (newloc<=500)
switch(specials())/* to 30000 */
{ case 2: return(2);
case 12: goto l12;
case 99: return(99);
default: bug(101);
}
rspeak(newloc-500);
newloc=loc;
return(2);
}
if (toting(k)||(newloc>200&&at(k))) goto l16;
goto l12;
}
if (prop[k]!=(newloc/100)-3) goto l16; /* newloc still conditions*/
l12: /* alternative to probability move */
for (; tkk!=0; tkk=tkk->next)
if (tkk->tloc!=ll2 || tkk->conditions!=ll1) break;
if (tkk==0) bug(25);
goto l11;
}
mback() /* 20 */
{ register struct travlist *tk2,*j;
register int ll;
if (forced(k=oldloc)) k=oldlc2; /* k=location */
oldlc2=oldloc;
oldloc=loc;
tk2=0;
if (k==loc)
{ rspeak(91);
return(2);
}
for (; tkk!=0; tkk=tkk->next) /* 21 */
{ ll=tkk->tloc;
if (ll==k)
{ k=tkk->tverb; /* k back to verb */
tkk=travel[loc];
return(9);
}
if (ll<=300)
{ j=travel[loc];
if (forced(ll) && k==j->tloc) tk2=tkk;
}
}
tkk=tk2; /* 23 */
if (tkk!=0)
{ k=tkk->tverb;
tkk=travel[loc];
return(9);
}
rspeak(140);
return(2);
}
specials() /* 30000 */
{ switch(newloc -= 300)
{ case 1: /* 30100 */
newloc = 99+100-loc;
if (holdng==0||(holdng==1&&toting(emrald))) return(2);
newloc=loc;
rspeak(117);
return(2);
case 2: /* 30200 */
drop(emrald,loc);
return(12);
case 3: /* to 30300 */
return(trbridge());
default: bug(29);
}
}
trbridge() /* 30300 */
{ if (prop[troll]==1)
{ 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;
return(2);
}
newloc=plac[troll]+fixd[troll]-loc; /* 30310 */
if (prop[troll]==0) prop[troll]=1;
if (!toting(bear)) return(2);
rspeak(162);
prop[chasm]=1;
prop[troll]=2;
drop(bear,newloc);
fixed[bear] = -1;
prop[bear]=3;
if (prop[spices]<0) tally2++;
oldlc2=newloc;
return(99);
}
badmove() /* 20 */
{ spk=12;
if (k>=43 && k<=50) spk=9;
if (k==29||k==30) spk=9;
if (k==7||k==36||k==37) spk=10;
if (k==11||k==19) spk=11;
if (verb==find||verb==invent) spk=59;
if (k==62||k==65) spk=42;
if (k==17) spk=80;
rspeak(spk);
return(2);
}
bug(n)
int n;
{ printf("Please tell jim@rand.org that fatal bug %d happened.\n",n);
exit(0);
}
checkhints() /* 2600 &c */
{ register int hint;
for (hint=4; hint<=hntmax; hint++)
{ if (hinted[hint]) continue;
if (!bitset(loc,hint)) hintlc[hint]= -1;
hintlc[hint]++;
if (hintlc[hint]<hints[hint][1]) continue;
switch(hint)
{ case 4: /* 40400 */
if (prop[grate]==0&&!here(keys)) goto l40010;
goto l40020;
case 5: /* 40500 */
if (here(bird)&&toting(rod)&&obj==bird) goto l40010;
continue; /* i.e. goto l40030 */
case 6: /* 40600 */
if (here(snake)&&!here(bird)) goto l40010;
goto l40020;
case 7: /* 40700 */
if (atloc[loc]==0&&atloc[oldloc]==0
&& atloc[oldlc2]==0&&holdng>1) goto l40010;
goto l40020;
case 8: /* 40800 */
if (prop[emrald]!= -1&&prop[pyram]== -1) goto l40010;
goto l40020;
case 9:
goto l40010; /* 40900 */
default: bug(27);
}
l40010: hintlc[hint]=0;
if (!yes(hints[hint][3],0,54)) continue;
printf("I am prepared to give you a hint, but it will ");
printf("cost you %d points.\n",hints[hint][2]);
hinted[hint]=yes(175,hints[hint][4],54);
l40020: hintlc[hint]=0;
}
}
trsay() /* 9030 */
{ register int i;
if (*wd2!=0) copystr(wd2,wd1);
i=vocab(wd1,-1);
if (i==62||i==65||i==71||i==2025)
{ *wd2=0;
obj=0;
return(2630);
}
printf("\nOkay, \"%s\".\n",wd2);
return(2012);
}
trtake() /* 9010 */
{ register int i;
if (toting(obj)) return(2011); /* 9010 */
spk=25;
if (obj==plant&&prop[plant]<=0) spk=115;
if (obj==bear&&prop[bear]==1) spk=169;
if (obj==chain&&prop[bear]!=0) spk=170;
if (fixed[obj]!=0) return(2011);
if (obj==water||obj==oil)
{ if (here(bottle)&&liq(0)==obj)
{ obj=bottle;
goto l9017;
}
obj=bottle;
if (toting(bottle)&&prop[bottle]==1)
return(9220);
if (prop[bottle]!=1) spk=105;
if (!toting(bottle)) spk=104;
return(2011);
}
l9017: if (holdng>=7)
{ rspeak(92);
return(2012);
}
if (obj==bird)
{ if (prop[bird]!=0) goto l9014;
if (toting(rod))
{ rspeak(26);
return(2012);
}
if (!toting(cage)) /* 9013 */
{ rspeak(27);
return(2012);
}
prop[bird]=1; /* 9015 */
}
l9014: if ((obj==bird||obj==cage)&&prop[bird]!=0)
carry(bird+cage-obj,loc);
carry(obj,loc);
k=liq(0);
if (obj==bottle && k!=0) place[k] = -1;
return(2009);
}
dropper() /* 9021 */
{ k=liq(0);
if (k==obj) obj=bottle;
if (obj==bottle&&k!=0) place[k]=0;
if (obj==cage&&prop[bird]!=0) drop(bird,loc);
if (obj==bird) prop[bird]=0;
drop(obj,loc);
return(2012);
}
trdrop() /* 9020 */
{
if (toting(rod2)&&obj==rod&&!toting(rod)) obj=rod2;
if (!toting(obj)) return(2011);
if (obj==bird&&here(snake))
{ rspeak(30);
if (closed) return(19000);
dstroy(snake);
prop[snake]=1;
return(dropper());
}
if (obj==coins&&here(vend)) /* 9024 */
{ dstroy(coins);
drop(batter,loc);
pspeak(batter,0);
return(2012);
}
if (obj==bird&&at(dragon)&&prop[dragon]==0) /* 9025 */
{ rspeak(154);
dstroy(bird);
prop[bird]=0;
if (place[snake]==plac[snake]) tally2--;
return(2012);
}
if (obj==bear&&at(troll)) /* 9026 */
{ rspeak(163);
move(troll,0);
move(troll+100,0);
move(troll2,plac[troll]);
move(troll2+100,fixd[troll]);
juggle(chasm);
prop[troll]=2;
return(dropper());
}
if (obj!=vase||loc==plac[pillow]) /* 9027 */
{ rspeak(54);
return(dropper());
}
prop[vase]=2; /* 9028 */
if (at(pillow)) prop[vase]=0;
pspeak(vase,prop[vase]+1);
if (prop[vase]!=0) fixed[vase] = -1;
return(dropper());
}
tropen() /* 9040 */
{ if (obj==clam||obj==oyster)
{ k=0; /* 9046 */
if (obj==oyster) k=1;
spk=124+k;
if (toting(obj)) spk=120+k;
if (!toting(tridnt)) spk=122+k;
if (verb==lock) spk=61;
if (spk!=124) return(2011);
dstroy(clam);
drop(oyster,loc);
drop(pearl,105);
return(2011);
}
if (obj==door) spk=111;
if (obj==door&&prop[door]==1) spk=54;
if (obj==cage) spk=32;
if (obj==keys) spk=55;
if (obj==grate||obj==chain) spk=31;
if (spk!=31||!here(keys)) return(2011);
if (obj==chain)
{ if (verb==lock)
{ spk=172; /* 9049: lock */
if (prop[chain]!=0) spk=34;
if (loc!=plac[chain]) spk=173;
if (spk!=172) return(2011);
prop[chain]=2;
if (toting(chain)) drop(chain,loc);
fixed[chain]= -1;
return(2011);
}
spk=171;
if (prop[bear]==0) spk=41;
if (prop[chain]==0) spk=37;
if (spk!=171) return(2011);
prop[chain]=0;
fixed[chain]=0;
if (prop[bear]!=3) prop[bear]=2;
fixed[bear]=2-prop[bear];
return(2011);
}
if (closng)
{ k=130;
if (!panic) clock2=15;
panic=TRUE;
return(2010);
}
k=34+prop[grate]; /* 9043 */
prop[grate]=1;
if (verb==lock) prop[grate]=0;
k=k+2*prop[grate];
return(2010);
}
trkill() /* 9120 */
{ register int i;
for (i=1; i<=5; i++)
if (dloc[i]==loc&&dflag>=2) break;
if (i==6) i=0;
if (obj==0) /* 9122 */
{ if (i!=0) obj=dwarf;
if (here(snake)) obj=obj*100+snake;
if (at(dragon)&&prop[dragon]==0) obj=obj*100+dragon;
if (at(troll)) obj=obj*100+troll;
if (here(bear)&&prop[bear]==0) obj=obj*100+bear;
if (obj>100) return(8000);
if (obj==0)
{ if (here(bird)&&verb!=throw) obj=bird;
if (here(clam)||here(oyster)) obj=100*obj+clam;
if (obj>100) return(8000);
}
}
if (obj==bird) /* 9124 */
{ spk=137;
if (closed) return(2011);
dstroy(bird);
prop[bird]=0;
if (place[snake]==plac[snake]) tally2++;
spk=45;
}
if (obj==0) spk=44; /* 9125 */
if (obj==clam||obj==oyster) spk=150;
if (obj==snake) spk=46;
if (obj==dwarf) spk=49;
if (obj==dwarf&&closed) return(19000);
if (obj==dragon) spk=147;
if (obj==troll) spk=157;
if (obj==bear) spk=165+(prop[bear]+1)/2;
if (obj!=dragon||prop[dragon]!=0) return(2011);
rspeak(49);
verb=0;
obj=0;
getin(&wd1,&wd2);
if (!weq(wd1,"y")&&!weq(wd1,"yes")) return(2608);
pspeak(dragon,1);
prop[dragon]=2;
prop[rug]=0;
k=(plac[dragon]+fixd[dragon])/2;
move(dragon+100,-1);
move(rug+100,0);
move(dragon,k);
move(rug,k);
for (obj=1; obj<=100; obj++)
if (place[obj]==plac[dragon]||place[obj]==fixd[dragon])
move(obj,k);
loc=k;
k=null;
return(8);
}
trtoss() /* 9170: throw */
{ register int i;
if (toting(rod2)&&obj==rod&&!toting(rod)) obj=rod2;
if (!toting(obj)) return(2011);
if (obj>=50&&obj<=maxtrs&&at(troll))
{ spk=159; /* 9178 */
drop(obj,0);
move(troll,0);
move(troll+100,0);
drop(troll2,plac[troll]);
drop(troll2+100,fixd[troll]);
juggle(chasm);
return(2011);
}
if (obj==food&&here(bear))
{ obj=bear; /* 9177 */
return(9210);
}
if (obj!=axe) return(9020);
for (i=1; i<=5; i++)
{ if (dloc[i]==loc)
{ spk=48; /* 9172 */
if (ran(3)==0||saved!= -1)
l9175: { rspeak(spk);
drop(axe,loc);
k=null;
return(8);
}
dseen[i]=FALSE;
dloc[i]=0;
spk=47;
dkill++;
if (dkill==1) spk=149;
goto l9175;
}
}
spk=152;
if (at(dragon)&&prop[dragon]==0)
goto l9175;
spk=158;
if (at(troll)) goto l9175;
if (here(bear)&&prop[bear]==0)
{ spk=164;
drop(axe,loc);
fixed[axe]= -1;
prop[axe]=1;
juggle(bear);
return(2011);
}
obj=0;
return(9120);
}
trfeed() /* 9210 */
{ if (obj==bird)
{ spk=100;
return(2011);
}
if (obj==snake||obj==dragon||obj==troll)
{ spk=102;
if (obj==dragon&&prop[dragon]!=0) spk=110;
if (obj==troll) spk=182;
if (obj!=snake||closed||!here(bird)) return(2011);
spk=101;
dstroy(bird);
prop[bird]=0;
tally2++;
return(2011);
}
if (obj==dwarf)
{ if (!here(food)) return(2011);
spk=103;
dflag++;
return(2011);
}
if (obj==bear)
{ if (prop[bear]==0) spk=102;
if (prop[bear]==3) spk=110;
if (!here(food)) return(2011);
dstroy(food);
prop[bear]=1;
fixed[axe]=0;
prop[axe]=0;
spk=168;
return(2011);
}
spk=14;
return(2011);
}
trfill() /* 9220 */
{ if (obj==vase)
{ spk=29;
if (liqloc(loc)==0) spk=144;
if (liqloc(loc)==0||!toting(vase)) return(2011);
rspeak(145);
prop[vase]=2;
fixed[vase]= -1;
return(9020); /* advent/10 goes to 9024 */
}
if (obj!=0&&obj!=bottle) return(2011);
if (obj==0&&!here(bottle)) return(8000);
spk=107;
if (liqloc(loc)==0) spk=106;
if (liq(0)!=0) spk=105;
if (spk!=107) return(2011);
prop[bottle]=((cond[loc]%4)/2)*2;
k=liq(0);
if (toting(bottle)) place[k]= -1;
if (k==oil) spk=108;
return(2011);
}
closing() /* 10000 */
{ register int i;
prop[grate]=prop[fissur]=0;
for (i=1; i<=6; i++)
{ dseen[i]=FALSE;
dloc[i]=0;
}
move(troll,0);
move(troll+100,0);
move(troll2,plac[troll]);
move(troll2+100,fixd[troll]);
juggle(chasm);
if(prop[bear]!=3) dstroy(bear);
prop[chain]=0;
fixed[chain]=0;
prop[axe]=0;
fixed[axe]=0;
rspeak(129);
clock1 = -1;
closng=TRUE;
return(19999);
}
caveclose() /* 11000 */
{ register int i;
prop[bottle]=put(bottle,115,1);
prop[plant]=put(plant,115,0);
prop[oyster]=put(oyster,115,0);
prop[lamp]=put(lamp,115,0);
prop[rod]=put(rod,115,0);
prop[dwarf]=put(dwarf,115,0);
loc=115;
oldloc=115;
newloc=115;
put(grate,116,0);
prop[snake]=put(snake,116,1);
prop[bird]=put(bird,116,1);
prop[cage]=put(cage,116,0);
prop[rod2]=put(rod2,116,0);
prop[pillow]=put(pillow,116,0);
prop[mirror]=put(mirror,115,0);
fixed[mirror]=116;
for (i=1; i<=100; i++)
if (toting(i)) dstroy(i);
rspeak(132);
closed=TRUE;
return(2);
}
Continuous source code history from original PDP-7 UNIX to FreeBSD 2, the first fully unencumbered FreeBSD release.