public static function check(Rail $rail)
{
$array = [[[0, 1], [0, -1]], [[1, 0], [-1, 0]], [[1, 0], [-1, 0]], [[1, 0], [-1, 0]], [[0, 1], [0, -1]], [[0, 1], [0, -1]], [[1, 0], [0, 1]], [[0, 1], [-1, 0]], [[-1, 0], [0, -1]], [[0, -1], [1, 0]]];
$arrayY = [0, 1, -1];
$blocks = $array[$rail->getDamage()];
$connected = [];
foreach ($arrayY as $y) {
$v3 = new Vector3($rail->x + $blocks[0][0], $rail->y + $y, $rail->z + $blocks[0][1]);
$id = $rail->getLevel()->getBlockIdAt($v3->x, $v3->y, $v3->z);
$meta = $rail->getLevel()->getBlockDataAt($v3->x, $v3->y, $v3->z);
if (($id == self::RAIL or $id == self::POWERED_RAIL) and in_array([$rail->x - $v3->x, $rail->z - $v3->z], $array[$meta])) {
$connected[] = $v3;
break;
}
}
foreach ($arrayY as $y) {
$v3 = new Vector3($rail->x + $blocks[1][0], $rail->y + $y, $rail->z + $blocks[1][1]);
$id = $rail->getLevel()->getBlockIdAt($v3->x, $v3->y, $v3->z);
$meta = $rail->getLevel()->getBlockDataAt($v3->x, $v3->y, $v3->z);
if (($id == self::RAIL or $id == self::POWERED_RAIL) and in_array([$rail->x - $v3->x, $rail->z - $v3->z], $array[$meta])) {
$connected[] = $v3;
break;
}
}
return $connected;
}
