#! Perl -w
# shutthebox.pl -- classic game
use strict;
my($roll1, $roll2, $c1, @c2, @opts, $choice, $score, %pegs);
my $cnum="0";
my $endgame="0";
srand;
sub assign {
    foreach my $num ("1".."12") {
        $pegs{$num} = 1;
    }
}
sub show_board {
    print "\n\n";
    foreach my $num ("1".."12") {
        if ($pegs{$num}) {
            print "$num ";
        } else {
            print "# ";
        }
    }
    print "\n";
}
sub roll {
    print "Roll was: ";
    $roll1 = 1 + int rand(6);
    $roll2 = 1 + int rand(6);
    print "$roll1 and $roll2";
}
sub find_combos {
    $c1 = $roll1 + $roll2;
    @c2 = ($roll1, $roll2);
}
sub process_combos {
    $cnum = "0";
    @opts = undef;
    print "\nOptions: \n";
    if ($pegs{$c1}) {
        print "\t".++$cnum.") Put down $c1\n";
        $opts[$cnum] = $c1;
    }
    unless ($c2[0] == $c2[1]) {
        if ($pegs{$c2[0]} && $pegs{$c2[1]}) {
            print "\t".++$cnum.") Put down $c2[0] and $c2[1]\n";
            $opts[$cnum] = "13";
        }
    }
    foreach("1".."12"){
        unless (defined($pegs{$_})) {
            $endgame++;
        }
    }
    if ($endgame == 12){
        print "YOU WON!";
        exit;
    }
    unless($opts[1]) {
        print "\tnone\nYOU LOSE!\n";
        foreach my $left ("1".."12") {
            if ($pegs{$left}) {
                $score += $left;
            }
        }
        print "\tScore: $score (lower is best)";
        exit;
    }
    print "Which option? ";
    chomp($choice=<STDIN>);
    if ($opts[$choice] == $c1) {
        $pegs{$c1} = 0;
    } elsif ($opts[$choice] == 13 && $choice <= 2) {
        $pegs{$c2[0]} = 0;
        $pegs{$c2[1]} = 0;
    } else {
        print "Invalid option choice!\n";
        process_combos();
    }
}


assign();
while(1) {
    show_board();
    roll();
    find_combos();
    process_combos();
}
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