#!/usr/bin/perl

my (%g, $w, $s);
my $s = shift || 9;
my $file = shift || '/usr/share/dict/words';
die "Number of guesses must be greater than 0\n" if ($s <= 0);
open(F, $file) || die "Can't open that dictionary file\n";
my $count = `wc -l < $file`;
chomp($count);
$count =~ s/[ \t]*//g;
$count = int(rand() * $count) + 1;
while ($count > 0 || $w =~ /^[A-Z]/) {
        $w = <F>;
        seek(F, 0, 0) if (! $w);
        $count--;
}
chomp($w);
while ($s >= 0) {
        my $x = length($w);
        print "\f";
        print ">>>hangman<<<\n\n";
        for (0..length($w)-1) {
                if (exists($g{substr($w, $_, 1)})) {
                        print " " . substr($w, $_, 1) . " ";
                        $x--;
                }
                else {
                        print " _ ";
                }
        }
        if (! $x) { print "\n\nCongratulations!!! ;)\n\n"; exit; }
        my @g = sort keys %g;
        print "\n\n";
        print "Incorrect guesses left: $s\n";
        print "       Already guessed: @g\n";
        GUESS: print "            Your guess: ";
        my $g = <>;
        $g = lc(substr($g, 0, 1));
        goto GUESS unless ($g =~ /[a-z]/);
        $s-- if ($w !~ /$g/ && ! exists $g{$g});
        $g{$g} = 1;
}
print "          The word was: \"$w\"\n\n";