package Algorithm::MasterMind::Partition::Most;
use warnings;
use strict;
use Carp;
use lib qw(../../lib ../../../lib ../../../../lib);
our $VERSION = sprintf "%d.%03d", q$Revision: 1.1 $ =~ /(\d+)\.(\d+)/g;
use base 'Algorithm::MasterMind::Partition';
use Algorithm::MasterMind qw( partitions );
sub compute_next_string {
my $self = shift;
my $partitions = shift || croak "No partitions";
# Obtain best
my %min_c;
my $max = 0;
for my $c ( keys %$partitions ) {
$min_c{$c} = keys %{$partitions->{$c}};
if ( $min_c{$c} > $max ) {
$max = $min_c{$c};
}
}
# Find all partitions with that max
my @most_parts = grep( $min_c{$_} == $max, keys %min_c );
# Break ties
return $most_parts[ rand( @most_parts )];
}
"while some were blacks, the sun was shining"; # Magic true value required at end of module
__END__
=head1 NAME
Algorithm::MasterMind::Partition::Most - Uses "most partitions"
criterium to play
=head1 SYNOPSIS
use Algorithm::MasterMind::Partition::Most;
my $secret_code = 'EAFC';
my @alphabet = qw( A B C D E F );
my $solver = new Algorithm::MasterMind::Partition::Most { alphabet => \@alphabet,
length => length( $secret_code ) };
=head1 DESCRIPTION
Solves the algorithm by issuing each time a combination with a
particular score; the computation of that score is delegated to
subclasses.
=head1 INTERFACE
=head2 compute_next_string
Computes the string with the most non-null partitions
=head1 AUTHOR
JJ Merelo C<< <jj@merelo.net> >>, proposed initially by Bestavros.
=head1 LICENCE AND COPYRIGHT
Copyright (c) 2010, JJ Merelo C<< <jj@merelo.net> >>. All rights reserved.
This module is free software; you can redistribute it and/or
modify it under the same terms as Perl itself. See L<perlartistic>.
=head1 DISCLAIMER OF WARRANTY
BECAUSE THIS SOFTWARE IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
FOR THE SOFTWARE, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
PROVIDE THE SOFTWARE "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER
EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE
ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE SOFTWARE IS WITH
YOU. SHOULD THE SOFTWARE PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL
NECESSARY SERVICING, REPAIR, OR CORRECTION.
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WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
REDISTRIBUTE THE SOFTWARE AS PERMITTED BY THE ABOVE LICENCE, BE
LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL,
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