public static byte[] allianceMemberOnline(int alliance, int gid, int id, boolean online) {
            MaplePacketLittleEndianWriter mplew = new MaplePacketLittleEndianWriter();

            mplew.writeShort(SendPacketOpcode.ALLIANCE_OPERATION.getValue());
            mplew.write(14);
            mplew.writeInt(alliance);
            mplew.writeInt(gid);
            mplew.writeInt(id);
            mplew.write(online ? 1 : 0);

            return mplew.getPacket();
        }