A simple proxy for use during development. It proxies a connection between client and server and prints out packets going over the network.

This tool is useful when figuring out how Minecraft implements features over the protocol.

To set up the proxy with a vanilla server and client:

• Start the vanilla 1.16.3 server. Make sure to set network-compression-threshold=-1 and online-mode=false or the proxy will not work for the time being.
• Run the proxy with cargo run --bin minecraft-proxy -- --port 25566 --server-port 25565
• Connect your client to localhost:25566

The proxy supports multiple client connections, in case you need to debug protocol semantics with multiple players.