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# f1-game-packet-parser
This is a Rust crate that allows you to convert binary data from F1 24, F1 23, and F1 22 UDP telemetry into organised structs.
## Getting started
Add `f1-game-packet-parser` to your project by running this command:
```
cargo add f1-game-packet-parser
```
## Example
This crate doesn't provide a UDP client out of the box. Here's how to write one that will keep parsing incoming packets until it receives final classification or a _session ended_ event packet. It will then print either the final classification or a _Session has ended!_ message and exit.
```rust
use f1_game_packet_parser::packets::event::EventDetails;
use f1_game_packet_parser::parse;
use std::error::Error;
use std::net::UdpSocket;
fn main() -> Result<(), Box<dyn Error>> {
// This IP and port should be set in the game's options by default.
let socket = UdpSocket::bind("127.0.0.1:20777")?;
let mut buf = [0u8; 1464];
loop {
// Receive raw packet data from the game.
// The buf array should be large enough for all types of packets.
let (amt, _) = socket.recv_from(&mut buf)?;
// Convert received bytes to an F1Packet struct.
let packet = parse(&buf[..amt])?;
// It's the final classification confirmation.
if let Some(final_classification) = packet.final_classification {
println!("{:#?}", final_classification);
break;
}
// It's the session ended event.
else if packet
.event
.is_some_and(|event| event.details == EventDetails::SessionEnded)
{
println!("Session has ended!");
break;
}
}
Ok(())
}
```
## Minimum supported Rust version
The minimum supported Rust version is documented in the `Cargo.toml` file. It may be bumped in minor releases if necessary.
## FAQ
### What about support for F1 2021-2018?
My initial goal was to provide support from the most recent game all the way to F1 2018, starting development with implementing support for the latter and _working my way up_. I ended up limiting my crate's backwards compatibility to F1 22, because:
- When I was done with the 2021 format, certain structs had so many fields that got added, removed, or in some cases even reordered with each new format that they became a nightmare to manage and navigate through in the documentation.
- I realised that most users would probably never end up using formats that are over 2-3 years old anyway. Limiting support to the 3 most recent packet formats also happens to be the actual policy in the latest games.
However, if you believe there's a method in the madness and/or need support for these older packet formats, feel free to open an issue or a pull request.
### Are there any alternatives to this crate?
If you're looking for a crate that supports an older telemetry format or need a built-in UDP client, consider one of the following:
+ [f1_game_telemetry](https://crates.io/crates/f1_game_telemetry) - supports the 2022 format and offers a built-in UDP client
+ [f1-telemetry-client](https://crates.io/crates/f1-telemetry-client) - supports the 2020 format and offers a built-in UDP client
### Where can I find the links to the original specification documents?
In the list below:
- [F1 24](https://forums.ea.com/discussions/f1-24-general-discussion-en/f1-24-udp-specification/8369125)
- [F1 23](https://forums.ea.com/discussions/f1-23-en/f1-23-udp-specification/8390745)
- [F1 22](https://forums.ea.com/discussions/f1-games-franchise-discussion-en/f1-22-udp-specification/8418392)
## License
MIT