I debated adding this to my original obfuscated Mastermind perl, but it is a different script now which I worked hard to re-write, and despite changing the functionality pretty significantly, I was able to do it in only three characters more.
sub q{$;=1;$q='';$q.=int(rand(9))for(5..8)}sub _{print@_}&q;for(;;){$:
+=$~=0;_
"$/$; ";chop($_=<>);if(/^\d{4}$/){$_.=q,_._,.$q;$:++while+s/(.)(.{6})\
+1/;$2,/
;$~++while+s/(.)(...+)\1/;$2$1/;_"$~W$:R ";++$;;$:==4|$;>10&&_($q)&&&q
+}}
(Though it was my idea to use substitution to evaluate the guess, thanks to
diotalevi for showing me how to implement my idea:
Re: Replace zero-width grouping?),
This game follows the official
Mastermind Instructions with the only difference being that I use 0-9, instead of 6 colors, to comprise the "code".
Added - How to play:
Consult the
Mastermind Instructions if you are unfamiliar with how the original game is played. This demonstration shows how my script is used to play the game:
perl mind.pl
1 1234
Program prompts with '1', which indicates the first guess. Player guesses '1234'.
1W0R
Program responds with 1 white peg and no red pegs.
2 5678
1W0R
3 9900
0W0R
4 1122
0W2R
5 1155
0W0R
6 6622
0W2R
7 7722
0W2R
8 8822
0W4R 8822
4 red pegs followed by the answer shows the player guessed the code correctly before his ten tries were exceeded.
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