Yewoh

Yewoh (pronounced yew-oh) is an Ultima Online protocol library & server, written in Rust, with bevy.

🚨🚧 This project is currently just a proof-of-concept and doesn't really implement any game logic. 🚧 🚨

Why?

I'm not sure there's a compelling reason for this to exist, however, I can give my excuses.

• Rust is very good for protocols
• ECS is a great model for composable game logic (in contrast to OOP which is most commonly used in this arena)
• bevy is an awesome ECS game engine in Rust (and I wanted to use it for something)
• There's no standalone protocol library for UO

What works?

At the moment, you can connect and walk around.

• Login is currently a no-op
• There is no persistence/ validation or game logic

Starting the server

cargo run --bin=yewoh-default-server --uo-data-path /path/to/UOClassic

The recommended (and only supported) client is ClassicUO.

By default the server will run with encryption on, so make sure you enable that when creating your ClassicUO profile.

Architecture

Crates:

• yewoh
  • The protocol library which should be unopinonated and make it easy to send or parse any of the known Ultima Online packets.
• yewoh-server
  • This crate contains a server implementation built against bevy.
  • It should implement all of the primitives which are shared between the client and server but none of the "game-specific" server-side logic. (e.g. AI, quests, spawners, etc)
• yewoh-default-game
  • This create contains the extra "game-specific" functionality required to run a server which acts like stock Ultima Online.
• yewoh-default-server
  • This crate builds a server binary for yewoh-default-game.
• yewoh-client / yewoh-bevy-client
  • These are earmarked to contain a simple client state tracker & client written against bevy.

License

This project is licensed under the MIT license.

Contributing

See the contribution page for information about contributing to the project.