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  1. cjorgens79

    F1 2018 UDP Specification

    What app are you trying to use? Your best bet would normally be to contact the app developer for assistance.
  2. cjorgens79

    F1 2018 UDP Specification

    Nope, the new protocol just some additional fields, the overall structure is very similar
  3. cjorgens79

    F1 2018 UDP Specification

    In single player, the telemetry stops the moment you cross the finish line, so its not possible to get accurate readings for any opponents behind you in the session. This is a known limitation of the game unfortunately. In multiplayer sessions the telemetry continues until the overall session ends, so you can do it for that. As for detecting the start in your second question, the only real way I can think of would be to detect when the currentlaptime goes backwards to a zero/near zero value. Need to check its near zero to avoid issues with flashbacks, although its not foolproof as a flashback could technically result in that too under the right circumstances.
  4. cjorgens79

    F1 2018 UDP Specification

    Its probably just a bad comment, the value would likely always just be 0 or 1. However if i am wrong then and they do set it to -1 in the underlying structure at some point, then if you read that field as UInt8 (byte in c#) you will get the value of 255 instead of -1. You can however just read it as Int8 (sbyte in c#) and it will work correctly.