private void HttpLoad()
{
game_container.clearWorlds();
requested_level = 0;
game_container.fillStubs(4);
GetNode <ScrollContainer>("MainContainer/ScrollContainer").ScrollVertical = 0;
connectionLost(lost: false);
string url = GDKnyttSettings.ServerURL + "/levels/?";
if (filter_category_int != 0)
{
url += $"category={filter_category_int}&";
}
if (filter_difficulty_int != 0)
{
url += $"difficulty={filter_difficulty_int}&";
}
if (filter_size_int != 0)
{
url += $"size={filter_size_int}&";
}
if (filter_text != null && filter_text != "")
{
url += $"text={Uri.EscapeDataString(filter_text)}&";
}
url += $"order={filter_order_int}";
http_levels_node.CancelRequest();
var error = http_levels_node.Request(url);
if (error != Error.Ok)
{
connectionLost();
}
}