world/server/0x00dd Level sync flag

[sruon]

Level sync flag in GROUP_ATTR, likely applies to 0x00E2 as well

https://github.com/LandSandBoat/server/pull/8554/files

Capture of enabling level sync and then turning it off

[2025-10-30 22:13:10.152] Packet 0x0DD
        |  0  1  2  3  4  5  6  7  8  9  A  B  C  D  E  F      | 0123456789ABCDEF
    -----------------------------------------------------  ----------------------
      0 | DD 1A DB 00 47 2F 08 00 3B 05 00 00 9A 05 00 00    0 | ....G/..;.......
      1 | 00 00 00 00 04 00 00 00 83 04 01 00 00 64 64 00    1 | .............dd.
      2 | 00 00 0F 63 03 31 00 00 52 69 63 68 69 65 73 00    2 | ...c.1..Richies.
      3 | 00 00 00 00 -- -- -- -- -- -- -- -- -- -- -- --    3 | ....------------

[2025-10-30 22:13:10.153] Packet 0x0DD
        |  0  1  2  3  4  5  6  7  8  9  A  B  C  D  E  F      | 0123456789ABCDEF
    -----------------------------------------------------  ----------------------
      0 | DD 18 DB 00 D3 CA 0E 00 F2 05 00 00 00 00 00 00    0 | ................
      1 | 00 00 00 00 00 01 00 00 82 04 00 00 00 60 00 00    1 | .............`..
      2 | 00 00 13 63 01 31 00 00 49 6A 73 00 00 00 00 00    2 | ...c.1..Ijs.....


[2025-10-30 22:14:17.472] Packet 0x0DD
        |  0  1  2  3  4  5  6  7  8  9  A  B  C  D  E  F      | 0123456789ABCDEF
    -----------------------------------------------------  ----------------------
      0 | DD 1A D9 01 47 2F 08 00 3B 05 00 00 9A 05 00 00    0 | ....G/..;.......
      1 | 00 00 00 00 04 00 00 00 83 04 01 00 00 64 64 00    1 | .............dd.
      2 | 00 00 0F 63 03 31 00 00 52 69 63 68 69 65 73 00    2 | ...c.1..Richies.
      3 | 00 00 00 00 -- -- -- -- -- -- -- -- -- -- -- --    3 | ....------------

[2025-10-30 22:14:17.472] Packet 0x0DD
        |  0  1  2  3  4  5  6  7  8  9  A  B  C  D  E  F      | 0123456789ABCDEF
    -----------------------------------------------------  ----------------------
      0 | DD 18 D9 01 D3 CA 0E 00 F2 05 00 00 00 00 00 00    0 | ................
      1 | 00 00 00 00 00 00 00 00 82 04 00 00 00 60 00 00    1 | .............`..
      2 | 00 00 13 63 01 31 00 00 49 6A 73 00 00 00 00 00    2 | ...c.1..Ijs.....

[atom0s]

I've pushed a commit that adds this flag to 0x00DD and 0x00E2. However, there are a few other packets that would need to be checked as they may also include this bit so I am going to leave this open until we can get some captures and confirm those as well.

Additional packets to check would be:

• 0x000D (GP_SERV_COMMAND_CHAR_PC)
• 0x000E (GP_SERV_COMMAND_CHAR_NPC)
• 0x00C8 (GP_SERV_COMMAND_GROUP_TBL)

For GP_SERV_COMMAND_CHAR_NPC, this is not 'mission-critical' and would more so be for seeing if NPCs can have level sync enabled via the name flags in those updates.