A multiplayer spaceship game built with Rust and Bevy Game Engine.

This project serves as a practical implementation of an authoritative server architecture in a real-time game environment.

Inspiration This project is heavily inspired by Gabriel Gambetta's excellent series on Fast-Paced Multiplayer.

• Authoritative Server: The server controls the state of the game.
• Client-Side Prediction: The client predicts its own state locally, making the game feel responsive immediately without waiting for the server.
• Server Reconciliation: The client seamlessly corrects its local state if it diverges from the server's authoritative state.
• Entity Interpolation: Smooths out the movement of other entities (ships and bullets).

The project is divided into three main crates.

• server/: The dedicated game server that handles physics, collisions, and state authority.
• client/: The player's game client, handling rendering, input, and prediction.
• shared/: Common logic, protocol definitions, and game components shared between client and server.

• Rust: Install Rust.
• Make: Used for running convenience scripts.
• Bacon (Optional): A background code checker for Rust. Useful for auto-restarting during development. Install Bacon.

You can start the server and client using the provided Makefile commands.

1. Start the Server

make run-server

2. Start the Client

make run-client

To test multiplayer on a single machine, you can open multiple terminal windows and run make run-client in each one.

• Rotate player using mouse position.
• W and S to move ship forward/backward.
• Left-click to shoot a bullet.