public static MaplePacket CygnusIntroLock(boolean enable) {
        MaplePacketLittleEndianWriter mplew = new MaplePacketLittleEndianWriter();
        mplew.writeShort(SendPacketOpcode.CYGNUS_INTRO_LOCK);
        mplew.write(enable ? 1 : 0);
        return mplew.getPacket();
    }