I made a standalone web-based swapper for the people who don’t want to download an entire app. A lot of people had broken packages after the last update but didn’t want to install a dedicated program just for a few swaps. So, I used the asset swapper backend of rlbuddy to make this thingamabob which runs entirely in the browser!
First, I had to find out how to actually share rlbuddy’s asset swapper with other projects. Turns out Cargo has a cool thing called workspaces where you can have multiple crates in the same repo! So I moved the dedicated UPK/AES etc. stuff into a new crate and added it as a dependency in regular rlbuddy.
Then, I whipped up a small wasm-compatible eframe app with the template, and included the new crate as a dependency. I made a big state machine of the steps meaning it’s impossible to have an invalid state, which is really nice. The only problem was that Rust’s ownership system isn’t smart enough to deal with it, so the code is a bit repetitive in places but it’s definitely worth it.
The WASM restrictions were super annoying, mainly do to with filesystem access and requiring async. I ended up using the egui-async crate and spilling Binds all over the place within the state machine. I couldn’t even figure out how to get the actual swap procedure to run in a different thread.
I also spent like 30 minutes debugging why in the world asset swapping was just broken. Even when I verified the same binary data were going in to the Upk object in the webapp and rlbuddy, for some reason the output upk was just different. Turns out I used chosen_replacement.name instead of chosen_replacement.package.name(). Isn’t that great? Anyways, it works fine now and I’m planning on posting it on r/RocketLeagueMods and possible r/RocketLeague.