File Coverage

blib/lib/Games/LMSolve/Tilt/Single.pm

Criterion	Covered	Total	%
statement	15	61	24.5
branch	0	4	0.0
condition	0	9	0.0
subroutine	5	12	41.6
pod	7	7	100.0
total	27	93	29.0

package Games::LMSolve::Tilt::Single;
$Games::LMSolve::Tilt::Single::VERSION = '0.14.0';
use strict;
use warnings;

use Games::LMSolve::Tilt::Base;

use Games::LMSolve::Input;

use vars qw(@ISA);

@ISA = qw(Games::LMSolve::Tilt::Base);

sub input_board
{
    my $self     = shift;
    my $filename = shift;

    my $spec = {
        'dims'   => { 'type' => "xy(integer)", 'required' => 1 },
        'start'  => { 'type' => "xy(integer)", 'required' => 1 },
        'goal'   => { 'type' => "xy(integer)", 'required' => 1 },
        'layout' => { 'type' => "layout",      'required' => 1 },
    };

    my $input_obj = Games::LMSolve::Input->new();

    my $input_fields = $input_obj->input_board( $filename, $spec );

    my ( $width, $height ) =
        @{ $input_fields->{'dims'}->{'value'} }{ 'x', 'y' };
    my ( $start_x, $start_y ) =
        @{ $input_fields->{'start'}->{'value'} }{ 'x', 'y' };
    my ( $goal_x, $goal_y ) =
        @{ $input_fields->{'goal'}->{'value'} }{ 'x', 'y' };

    if ( ( $start_x >= $width ) || ( $start_y >= $height ) )
    {
        die
"The starting position is out of bounds of the board in file \"$filename\"!\n";
    }

    if ( ( $goal_x >= $width ) || ( $goal_y >= $height ) )
    {
        die
"The goal position is out of bounds of the board in file \"$filename\"!\n";
    }

    my ( $horiz_walls, $vert_walls ) =
        $input_obj->input_horiz_vert_walls_layout( $width, $height,
        $input_fields->{'layout'} );

    $self->{'width'}       = $width;
    $self->{'height'}      = $height;
    $self->{'goal_x'}      = $goal_x;
    $self->{'goal_y'}      = $goal_y;
    $self->{'horiz_walls'} = $horiz_walls;
    $self->{'vert_walls'}  = $vert_walls;

    return [ $start_x, $start_y ];
}

sub pack_state
{
    my $self         = shift;
    my $state_vector = shift;

    return pack( "cc", @$state_vector );
}

sub unpack_state
{
    my $self  = shift;
    my $state = shift;
    return [ unpack( "cc", $state ) ];
}

sub display_state
{
    my $self  = shift;
    my $state = shift;
    my ( $x, $y ) = ( map { $_ + 1 } @{ $self->unpack_state($state) } );
    return sprintf("($x,$y)");
}

sub check_if_final_state
{
    my $self = shift;

    my $coords = shift;

    return (   ( $coords->[0] == $self->{'goal_x'} )
            && ( $coords->[1] == $self->{'goal_y'} ) );
}

sub enumerate_moves
{
    my $self   = shift;
    my $coords = shift;

    return (qw(u d l r));
}

sub perform_move
{
    my $self = shift;

    my $coords = shift;
    my $move   = shift;

    my ( $new_coords, $intermediate_states ) =
        $self->move_ball_to_end( $coords, $move );

    return $new_coords;
}

1;

__END__