project-meteor-server/FFXIVClassic Map Server/packets/send/Actor/battle/BattleActionX01Packet.cs

using FFXIVClassic.Common;
using System;
using System.IO;

namespace FFXIVClassic_Map_Server.packets.send.actor.battle
{
    // see xtx_command
    enum BattleActionX01PacketCommand : ushort
    {
        Disengage = 12002,
        Attack = 22104,
    }

    class BattleActionX01Packet
    {
        public const ushort OPCODE = 0x0139;
        public const uint PACKET_SIZE = 0x58;

        public static SubPacket BuildPacket(uint sourceActorId, uint animationId, ushort commandId, BattleAction action)
        {
            byte[] data = new byte[PACKET_SIZE - 0x20];

            using (MemoryStream mem = new MemoryStream(data))
            {
                using (BinaryWriter binWriter = new BinaryWriter(mem))
                {
                    binWriter.Write((UInt32)sourceActorId);

                    binWriter.Write((UInt32)animationId);

                    //Missing... last value is float, string in here as well?

                    binWriter.Seek(0x20, SeekOrigin.Begin);
                    binWriter.Write((UInt32)1); //Num actions (always 1 for this)
                    binWriter.Write((UInt16)commandId);
                    binWriter.Write((UInt16)0x801); //?

                    binWriter.Write((UInt32)action.targetId);

                    binWriter.Write((UInt16)action.amount);
                    binWriter.Write((UInt16)action.worldMasterTextId);

                    binWriter.Write((UInt32)action.effectId);
                    binWriter.Write((Byte)action.param);
                    binWriter.Write((Byte)1); //?
                }
            }
            new SubPacket(OPCODE, sourceActorId, data).DebugPrintSubPacket();
            return new SubPacket(OPCODE, sourceActorId, data);
        }
    }
}