public static byte[] updateMount(MapleCharacter chr, boolean levelup) {
        MaplePacketLittleEndianWriter mplew = new MaplePacketLittleEndianWriter();

        mplew.writeShort(SendPacketOpcode.UPDATE_MOUNT.getValue());
        mplew.writeInt(chr.getId());
        mplew.writeInt(chr.getMount().getLevel());
        mplew.writeInt(chr.getMount().getExp());
        mplew.writeInt(chr.getMount().getFatigue());
        mplew.write(levelup ? 1 : 0);

        return mplew.getPacket();
    }