public static Location getLFST(String str) {
        String[] l = str.split(":");
        if(l.length == 4) {
            if(Bukkit.getWorld(l[0]) != null && isDouble(l[1]) && isDouble(l[2]) && isDouble(l[3])) {
                return new Location(Bukkit.getWorld(l[0]), Double.parseDouble(l[1]), Double.parseDouble(l[2]), Double.parseDouble(l[3]));
            }
        }
        return null;
    }