for testing and deploying your application
for finding and fixing issues
for empowering human code reviews
<?php declare(strict_types=1);
namespace Stratadox\PuzzleSolver\Puzzle\SlidingPuzzle;
use Stratadox\PuzzleSolver\Move;
use Stratadox\PuzzleSolver\Puzzle;
use Stratadox\PuzzleSolver\Moves;
final class SlidingPuzzle implements Puzzle
{
/** @var Board */
private $board;
/** @var Moves */
private $moves;
private function __construct(Board $board, Moves $moves)
$this->board = $board;
$this->moves = $moves;
}
public static function withPieces(array ...$pieces): Puzzle
return new self(new Board(...$pieces), Moves::none());
public function goalState(): string
return $this->board->goalState();
public function currentState(): string
return $this->board->currentState();
public function representation(): string
return (string) $this->board;
public function afterMaking(Move ...$moves): Puzzle
return new self(
$this->board->afterSliding(...$moves),
$this->moves->add(...$moves)
);
public function isSolved(): bool
return $this->board->isSolved();
public function movesSoFar(): Moves
return $this->moves;
public function possibleMoves(): Moves
return new Moves(...$this->board->possibleSlides());
Stratadox /
PuzzleSolver
