#!/usr/local/bin/perl -w

# Hangman v1.0
# By Satya <http://satya.virtualave.net/>
#
# Plays a game of Hangman. Depends on a word list file containing
# one word per line, like the system dictionary.
# Edit $dict and $guesses to suit.
#
# Distributed freely by Satya (me). Inform me if you distribute it
# further. Distribute with these comments intact.
#
# If you make changes, do not distribute without asking me. In any case,
# give me credit. Keep these lines intact.
#
# Do not distribute commercially without asking me. Let me 
# know if you use it, and whether you like it. Email-ware :-)

use strict;

my $dict='/usr/dict/words'; #edit suitably
my $guesses=6;

#end config

my ($word,$flags,$count,@alpha,$g,$i);

open(WORDS,"<$dict") || die "Cannot read from $dict: $!\n";
srand;
rand($.) < 1 && ($word = $_) while <WORDS>;
close(WORDS);

chomp($word);
$word=~tr/[A-Z]/[a-z]/;

$flags=$word;
$count=0;

while($count<$guesses)	{
	print "\nBad guesses: $count (upto $guesses allowed)\n";
	for($i=0;$i<length($word);$i++)	{
		if(substr($flags,$i,1) ne '1')	{print '_'}
			else	{print substr($word,$i,1)}
		}
	print "\nYour guesses: ";
	foreach (@alpha)	{print}
	$g=input();
	while(join('',@alpha)=~/$g/)	{
		print "Already guessed\n";
		$g=input();
		}
	push(@alpha,$g);
	if($flags=~/$g/)	{
		$flags=~s/$g/1/g;
		}
	else	{
		$count++;
		}

	if($flags!~/[a-z]/)	{
		print "\nYou got it!";
		last;
		}
} #while


print "The word was `$word'\n";


exit;


sub input()	{
	print "\nNext letter: ";
	chomp($_=<STDIN>);
	tr/[A-Z]/[a-z]/;
	$_;
}


__END__