for testing and deploying your application
for finding and fixing issues
for empowering human code reviews
<?php declare(strict_types=1);
namespace Stratadox\PuzzleSolver;
use function assert;
use function implode;
use const PHP_EOL;
/**
* Puzzle Solution
*
* The goal of this whole endeavour. Contains the solved state and all the
* moves that led to that state, as well as a reference to the original state
* of the puzzle that got solved.
* @author Stratadox
*/
final class PuzzleSolution implements Solution
{
/** @var Moves */
private $moves;
/** @var Puzzle */
private $state;
private $original;
public function __construct(Moves $moves, Puzzle $state, Puzzle $original)
$this->moves = $moves;
$this->state = $state;
$this->original = $original;
}
public static function fromSolved(Puzzle $puzzle, Puzzle $original): self
assert($puzzle->isSolved());
return new self($puzzle->movesSoFar(), $puzzle, $original);
public function moves(): Moves
return $this->moves;
public function state(): Puzzle
return $this->state;
public function cost(): float
return $this->moves->cost();
public function original(): Puzzle
return $this->original;
public function __toString(): string
return implode(PHP_EOL, $this->moves->items());
Stratadox /
PuzzleSolver
