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De-gotoize hint machine.

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This commit is contained in:
Eric S. Raymond 2017-06-08 07:49:27 -04:00
parent fc0c48f0f2
commit c9cc36c681
1 changed files with 65 additions and 74 deletions
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141
main.c
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@ -152,93 +152,84 @@ static bool fallback_handler(char *buf)
} }
static void dohint(FILE *cmdin, int hint) static void dohint(FILE *cmdin, int hint)
{
/* Hints */
/* Come here if he's been long enough at required loc(s) for some /* Come here if he's been long enough at required loc(s) for some
* unused hint. hint number is in variable "hint". Branch to * unused hint. */
* quick test for additional conditions, then come back to do {
* neat stuff. Goto 40010 if conditions are met and we want to int i;
* offer the hint. Goto 40020 to clear game.hintlc back to zero,
* 40030 to take no action yet. */
switch (hint-1) switch (hint-1)
{ {
case 0: goto L40100; case 0:
case 1: goto L40200; /* cave */
case 2: goto L40300; if(game.prop[GRATE] == 0 && !HERE(KEYS))
case 3: goto L40400; break;
case 4: goto L40500;
case 5: goto L40600;
case 6: goto L40700;
case 7: goto L40800;
case 8: goto L40900;
case 9: goto L41000;
}
/* CAVE BIRD SNAKE MAZE DARK WITT URN WOODS OGRE
* JADE */
BUG(27);
L40010:
game.hintlc[hint]=0; game.hintlc[hint]=0;
if(!YES(cmdin,HINTS[hint][3],0,54)) return; return;
case 1: /* bird */
if(game.place[BIRD] == game.loc && TOTING(ROD) && game.oldobj == BIRD)
break;
return;
case 2: /* snake */
if(HERE(SNAKE) && !HERE(BIRD))
break;
game.hintlc[hint]=0;
return;
case 3: /* maze */
if(game.atloc[game.loc] == 0 &&
game.atloc[game.oldloc] == 0 &&
game.atloc[game.oldlc2] == 0 &&
game.holdng > 1)
break;
game.hintlc[hint]=0;
return;
case 4: /* dark */
if(game.prop[EMRALD] != -1 && game.prop[PYRAM] == -1)
break;
game.hintlc[hint]=0;
return;
case 5: /* witt */
break;
case 6: /* urn */
if(game.dflag == 0)
break;
game.hintlc[hint]=0;
return;
case 7: /* woods */
if(game.atloc[game.loc] == 0 &&
game.atloc[game.oldloc] == 0 &&
game.atloc[game.oldlc2] == 0)
break;
return;
case 8: /* ogre */
i=ATDWRF(game.loc);
if(i < 0) {
game.hintlc[hint]=0;
return;
}
if(HERE(OGRE) && i == 0)
break;
return;
case 9: /* jade */
if(game.tally == 1 && game.prop[JADE] < 0)
break;
game.hintlc[hint]=0;
return;
default:
BUG(27);
break;
}
/* Fall through to hint display */
game.hintlc[hint]=0;
if(!YES(cmdin,HINTS[hint][3],0,54))
return;
SETPRM(1,HINTS[hint][2],HINTS[hint][2]); SETPRM(1,HINTS[hint][2],HINTS[hint][2]);
RSPEAK(261); RSPEAK(261);
game.hinted[hint]=YES(cmdin,175,HINTS[hint][4],54); game.hinted[hint]=YES(cmdin,175,HINTS[hint][4],54);
if(game.hinted[hint] && game.limit > 30) if(game.hinted[hint] && game.limit > 30)
game.limit=game.limit+30*HINTS[hint][2]; game.limit=game.limit+30*HINTS[hint][2];
L40020: game.hintlc[hint]=0;
L40030: return;
/* Now for the quick tests. See database description for one-line notes. */
L40100: if(game.prop[GRATE] == 0 && !HERE(KEYS))
goto L40010;
goto L40020;
L40200: if(game.place[BIRD] == game.loc && TOTING(ROD) && game.oldobj == BIRD) goto L40010;
goto L40030;
L40300: if(HERE(SNAKE) && !HERE(BIRD))
goto L40010;
goto L40020;
L40400: if(game.atloc[game.loc] == 0 &&
game.atloc[game.oldloc] == 0 &&
game.atloc[game.oldlc2] == 0 &&
game.holdng > 1)
goto L40010;
goto L40020;
L40500: if(game.prop[EMRALD] != -1 && game.prop[PYRAM] == -1)
goto L40010;
goto L40020;
L40600: goto L40010;
L40700: if(game.dflag == 0)
goto L40010;
goto L40020;
L40800: if(game.atloc[game.loc] == 0 &&
game.atloc[game.oldloc] == 0 &&
game.atloc[game.oldlc2] == 0)
goto L40010;
goto L40030;
L40900: I=ATDWRF(game.loc);
if(I < 0)
goto L40020;
if(HERE(OGRE) && I == 0)
goto L40010;
goto L40030;
L41000: if(game.tally == 1 && game.prop[JADE] < 0)
goto L40010;
goto L40020;
} }
static bool dwarfmove(void) static bool dwarfmove(void)
/* Dwarves move. Return true if player survives, false if he dies. */ /* Dwarves move. Return true if player survives, false if he dies. */
{ {