private static void updatePlayersWithinRadius(int radius, Player self) {
    for (Player player : Bukkit.getOnlinePlayers()) {
        if (self.getLocation().distanceSquared(player.getLocation()) < (radius * radius)) {
            CraftPlayer p = (CraftPlayer) self;
            ((CraftPlayer)player).getHandle().netServerHandler.sendPacket(new Packet20NamedEntitySpawn(p.getHandle()));
        }
    }
}