Zeppelin

Highly optimized server implementation written in Go for Minecraft 1.21.3

Discord Server

Goal

A fast, efficient, and reliable server, with a plugin API and clean code

Protocol Coverage

• Packet encryption (AES/CFB8)

• Packet compression (Zlib)

• Authentication

• Named Binary Tag (NBT)

• Text formatting

• Chat signing

Progress

• Chunk encoding and manipulation

• Region/Anvil decoding and encoding (temp disabled)

• WIP terrain generation

• Player movement including metadata

API

Protocol:

• NBT: protocol/nbt

• .properties: protocol/properties

• text formatting: protocol/text

• network and packets: protocol/net

Server:

• Commands: server/command (server.CommandManager) - can register custom commands

• World: server/world (server.World) - can register custom dimensions, modify chunks etc

• Registry: server/registry - shared registry constants

• Container (inventory): server/container

• Player: server/player (Session.Player())

• Session: server/session (api) | server/session/std (impl)

Boot Arguments

--no-plugins: skips plugin loading

--memprof: uses memory profiler

--cpuprof: uses cpu profiler

--xmem=<amount>: limits memory usage to amount, for example: --xmem=1gib

Acknowledgements

Angel - help with chunk related calculations (0x8D989E86)