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Hoobiechoobie's avatar
Hoobiechoobie
Icon for Codemasters Team rankCodemasters Team
9 months ago

F1 24 UDP Specification

Here is the current specification for the UDP telemetry output system for F1 24.  To report any bugs with the UDP system, please add a new topic into the bug reporting section of this forum and ou...
Marchesee's avatar
Marchesee
28 days ago
@TTV-ADHawkinsGH In my case, I'm always assuming that we have 22 cars in the race and manually removing the invalid ones. This way I haven't had any problems with the position of players who abandoned, they are still returned in "participants". Is this right? I don't know, but it's been working lol
TTV-ADHawkinsGH's avatar
TTV-ADHawkinsGH
28 days ago

I think I got this sorted now. I was incorrectly using the 'numActiveUsers' in the various packets to limit how far into the 22 element array I parsed. Now I've removed this, it seems to be working correctly.

Another question, when I do a race with (say) full quali, if there are only 10 cars, then the telemetry reports 10 'real' F1 drivers in the other 10 slots for Q1. Is there a good strategy to know whether these are 'real' AI participants or not?

Thanks

Andy

  • IkoRein's avatar
    IkoRein
    Seasoned Adventurer
    28 days ago
    @TTV-ADHawkinsGH
    I also don't use the numActiveUsers, as it is pretty useless to do anything with it, except maybe display how many cars are racing. I have my own heuristics like "MaxActiveCarIndex", which get updated for each frame to help smooth operation in other areas of my Tool.

    For the Quali (and other events too), check the Lapdata.m_resultStatus field values to detect, which cars are in "for real", i.e. active in the session. For quali you can just see which cars are 'Active' or 'Finished', for racing events you might want to check also the other values depending on your need(s).

    Cheers.
  • TTV-ADHawkinsGH's avatar
    TTV-ADHawkinsGH
    28 days ago

    Thanks, haven't really checked 'result status'. I'll take a look.

    Andy

  • TTV-ADHawkinsGH's avatar
    TTV-ADHawkinsGH
    26 days ago

    I might be being blind and just not seeing it, is there any way in the telemetry to know which of the drivers correspond to the player on the local machine in a network game?

    I've checked 'm_spectatorCarIndex' in the PacketSessionData but this always seems to be zero (and participant zero isn't the current player).

    Thanks

    Andy

  • Marchesee's avatar
    Marchesee
    26 days ago
    @TTV-ADHawkinsGH I didn't test it, but take a look at the Packet Header:
    m_playerCarIndex; // Index of player's car in the array
    m_secondaryPlayerCarIndex; // Index of secondary player's car in the array (splitscreen)

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