<?php
	$x = intval($_GET['x']);
	$y = intval($_GET['y']);
	$z = intval($_GET['z']);
	$id = preg_replace("/[^a-z0-9\-]/", "", $_GET['id']);
	if (strlen($id) > 30) die();

	$hdr = "Location: /maps.linux-forks.de/tiles/$id/$z/" . str_pad($y * (2**$z) + $x, 5, "0", STR_PAD_LEFT) . ".png";
	if (isset($_GET["debug"])) {
		echo $hdr;
	} else {
		header($hdr);
	}
?>