[HELP] Packed GUIDs since build 15595

[broly7]

Hi folks =)
I'm stucked now, because my aim is to create a movement packet, MSG_MOVE_HEARTBEAT. Ok this movement structure changed from 4.0.6 up to 4.3.4.
Now it looks like seriously weird, because it does put the Z coordinate before the X and then the Y coord and so on. (Nor menthion "O" coordinate because it's spreaded out at the end).

So i almost have understood the packet:

14 39 00 00 8a 21 09 43 2b ae d2 44 51 43 d2 44 83 44 00 00 00 01 80 00 82 02 b9 fe a6 9e 40 9a 68 6b 00

Where:
Opcode
Z float
X float
Y float
I really don't know
Flag HeartBeat
I guess it's the packed GUID (00 82 02 b9) --> From 0x00000000000383B8 = b8 83 03 00 00 00 00 00
O float
Timestamp



So my query is if anyone could explain me how this packet structure works, if i'm right or wrong. And the most important how is the NEW algorithm to "compress" these player GUIDs.

Greetings

[doityourself]

you habe to unpack it with the new BitUnpacking system since cata

The packet is splitted in two parts.
1. is the part were some bits are set. for the guid too
2. part is the data part were the data are read depending on the written bits

https://github.com/Arctium/Arctium/b...s/BitUnpack.cs

[broly7]

you habe to unpack it with the new BitUnpacking system since cata

The packet is splitted in two parts.
1. is the part were some bits are set. for the guid too
2. part is the data part were the data are read depending on the written bits

https://github.com/Arctium/Arctium/b...s/BitUnpack.cs

Good thank you
I don't know so much about c++, but i'll try to make a LUA function to make the same.

Thanks again <3

[Master674]

Jam packets have own build functions which obfuscate every packet unique. You're looking for PlayerMoveHeartbeat::CliPut.
CMovementData_C::SendSimpleMoveMessage is a template function which calls the base function with correct opcode and movement instance.

Therefore WoW sends a movement packet like this:

int CMovementData_C::SendSimpleMoveMessage<PlayerMoveHeartbeat>(uint32 timestamp)
{
  int v2; // ebx@1
  char v4; // [sp+20h] [bp-98h]@1
  char v5; // [sp+30h] [bp-88h]@1

  PlayerMoveHeartbeat::PlayerMoveHeartbeat(&v4); // ctor...
  v2 = this->CMovementData_C::SendSimpleMoveMessage(timestamp, opcode, &v5, &v4);
  PlayerMoveHeartbeat::~PlayerMoveHeartbeat(&v4); // dtor...
  return v2;
}

[doityourself]

this was not his question
he only needs to understand BitPack and BitUnpack

[Jadd]

this was not his question
he only needs to understand BitPack and BitUnpack

There's very few cases where you should resort to packing/unpacking guids yourself. Master is just offering a better solution.

@broly7: Thanks for not releasing cracked WoWPlus (until 5.1), maybe it will teach people that they can occasionally support developers and buy software... They missed out, too bad for them.

[broly7]

There's very few cases where you should resort to packing/unpacking guids yourself. Master is just offering a better solution.

@broly7: Thanks for not releasing cracked WoWPlus (until 5.1), maybe it will teach people that they can occasionally support developers and buy software... They missed out, too bad for them.

As a developer i thought it was the best choice to support your work, since i wouldn't like someone reveal/post my cracked software. So as i stated i don't even play/code for retail, i'm just a private server's player and i did it just for fun.

P.S Thanks for the tips Master as well