A simple minecraft proxy, with the ability to connect multiple clients to multiple servers, simultaneously.

What's working:

Connecting to an arbitrary minecraft server.

Having multiple connections open at the same time.

Can use any username when connecting. (As long as you own the account :P)

What's to do:

Remember the chunks, entities, and spawn/despawn them when the client connects.

Let the player know when a connection ends.

Simulate physics/movement on the player the user is not currently controlling, so that they don't get kicked.

Q: When I try to connect to a server, the connection is abruptly ended, why?

You're probably trying to connect to a server that's running a previous version of minecraft (1.8 usually). Or you're trying to join an online server without authentication. Auth is enabled by default on most servers, so you'll need to use the correct password for the name you chose ;)

Q: How do I run this?

npm install to install dependencies.

node test.js to start the proxy.

Start minecraft and connect to localhost:3622.

Q: It doesn't work, it says something about "v => transform" being an invalid character.

A: Go bother rom. (You can manually fix it by changing it to a anonymous function or switching to a newer version of node.)