for testing and deploying your application
for finding and fixing issues
for empowering human code reviews
<?php declare(strict_types=1);
namespace Stratadox\Pathfinder\Estimate;
use const INF;
use Stratadox\Pathfinder\Environment;
use Stratadox\Pathfinder\Heuristic;
final class Indexed implements Heuristic
{
private $cache;
private $environment;
private function __construct(array $cache, Environment $environment)
$this->cache = $cache;
$this->environment = $environment;
}
public static function heuristic(
array $cache,
Environment $environment
): Heuristic {
return new self($cache, $environment);
public function estimate(string $start, string $goal): float
return $this->cache[$start][$goal] ?? INF;
public function environment(): Environment
return $this->environment;
Stratadox /
Pathfinder
