LimboAutoServer

Minecraft 版本： 26.1

平台： velocity

标签： management technology utility

LimboAutoServer

A Velocity plugin that lazy-starts backend
servers when a player connects and keeps them running only while players are present —
the same idea as AutoServer, but built on
top of LimboAPI.

Why

AutoServer denies the initial connection while the backend boots, which leaves the client
stuck in the login phase. A cold Fabric server can take a while to start, and clients often
hit a login timeout before it is ready.

LimboAutoServer fixes this by dropping the player into a LimboAPI virtual world (a tiny
"waiting room" served directly by the proxy) while the backend starts. The player is fully
connected — no timeout — sees a status message, and is seamlessly transferred to the
real server as soon as it is responsive.

How it works

1. During login, LimboAPI fires LoginLimboRegisterEvent.
2. LimboAutoServer resolves the backend the player is heading to (forced host, else the
   first entry of Velocity's try list) and pings it.
3. If it's online, the player connects normally.
4. If it's offline, the player is spawned into the limbo world and the backend's
   start command is run. Concurrent joiners share a single startup and are released
   together once the server responds.
5. When the last player leaves a backend, it is stopped again after autoShutdownDelay.

Requirements

• Velocity 3.4.x
• LimboAPI installed on the same proxy (declared as
  a plugin dependency, so it loads first).

Build

./gradlew build

The plugin jar is produced at build/libs/limboautoserver-velocity-<version>.jar.
toml4j and the Velocity/Adventure APIs are provided by Velocity at runtime, and the
LimboAPI classes are provided by the LimboAPI plugin, so the jar stays small (no shading).

Configuration

On first run config.toml is written to plugins/limboautoserver/. Each backend is a
[servers.<name>] block whose name matches the server in velocity.toml. See the bundled
config.toml for the full set of options (start/stop
commands, working directory, startup/shutdown/idle delays) and the [limbo] section
(dimension, gamemode, spawn position, world time) and [messages].

Commands

/limboautoserver (alias /las):

Credits

Derived from AutoServer by Artificial-720
(MIT). Built on LimboAPI by Elytrium (MIT).
Licensed under the MIT License — see LICENSE.