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<?php
namespace Kata\Rover;
final class Direction
{
public const NORTH = 'n';
public const SOUTH = 's';
public const EAST = 'e';
public const WEST = 'w';
private $direction;
private function __construct(string $direction)
$this->direction = $direction;
}
public static function north(): Direction
return new self(Direction::NORTH);
public static function south(): Direction
return new self(Direction::SOUTH);
public static function east(): Direction
return new self(Direction::EAST);
public static function west(): Direction
return new self(Direction::WEST);
public function direction(): Direction
return $this->direction;
uvinum /
php-kata-env
