/**
* @param string $key
* @param int $val
* @param Route $route
*/
private function _tryRouteViaValue($key, $val, Route $route = null)
{
if (!$route) {
$route = new Route();
}
$parts = explode(',', $key);
$node = Node::factory((int) $parts[0], (int) $parts[1], $val);
$route->addNode($node);
//unset($this->_sortedValues[$key]);
$neighbours = $this->_getSuitableNeighbours($node);
if (!$neighbours) {
$this->_addRoute($route);
} else {
foreach ($neighbours as $nextKey => $neighbour) {
$routeClone = clone $route;
$this->_tryRouteViaValue($nextKey, $neighbour, $routeClone);
}
}
}