public static Backend.Coords _pos2Tile(Vector2 coords, bool tall = false)
{
// TODO: This does not work perfectly yet. Check the formula!
coords.X -= 32;
coords.Y -= 48;
return new Backend.Coords((int)(coords.X / 128 - coords.Y / 96)
, (int)(coords.X / 128 + coords.Y / 96));
}