Velocity Limbo Handler

VelocityLimboHandler

A smart limbo & queue handler for Velocity
Keeps your players connected, calm, and coming back even when backend servers crash.

---

---

✨ Why VelocityLimboHandler?

• Per-Server Smart Queue – players only wait for the server they were on, not behind others stuck elsewhere
• Queue Updates – automatic position notifications keep players informed
• Protected Limbo – blocks unwanted commands to prevent bypasses
• Maintenance Support – respects whitelist & bypass permissions
• Authentication Ready – seamless integration with authentication plugins such as LibreLogin or nLogin

Full setup & advanced features in the Wiki.

Made to work with LOOHP's Limbo server, but any other server is also fine.

---

🧩 Compatibility

• Proxy: Velocity (all recent versions)
• MC Versions: All versions
• License: MIT

---

🚀 Quick Install

1. Grab the latest .jar from Releases.
2. Drop it into your Velocity plugins folder.
3. Restart the proxy (config files will generate).
4. Adjust config.yml + messages.yml to your liking.
5. Restart once more — done!

---

⚙️ Config Highlights

# config.yml
limbo-name: "limbo"                  # The name of your limbo server
direct-connect-server: "lobby"       # Where to send direct connections
task-interval: 3000                  # Queue processing interval (milliseconds)
reconnect-batch-size: 8              # Maximum backend queues checked per processing run
queue-notify-interval: 30            # How often to tell players their position
queue-notify-batch-size: 64          # Maximum due notifications sent per dispatcher tick
disabled-commands: ["server","hub"]  # Commands blocked in limbo

The batch limits smooth work across scheduler ticks. Increase them for faster catch-up on very large
networks, or lower them to cap short CPU bursts on constrained proxies.

Messages can be tweaked in messages.yml so your players see exactly what you want.

---

🖧 Proxy Setup Example

[servers]
lobby = "127.0.0.1:25566"
limbo = "127.0.0.1:25569"
# Keep normal logins on Lobby. VLH intercepts a loss of the current backend itself.
try = ["lobby", "limbo"]

[advanced]
# Required for VLH to recover players after an ungraceful backend disconnect.
failover-on-unexpected-server-disconnect = true

[forced-hosts]
"pvp.example.com" = ["pvp", "limbo"]
"build.example.com" = ["build", "limbo"]

---

🛡️ Permissions & Integrations

• Players get queued automatically, no setup required.
• Commands blocked per config.
• LibreLogin support ensures login/auth flow isn’t broken.
• Maintenance plugins are respected (bypass logic included).

---

🤝 Contributing

Pull requests are welcome! Just follow the style already in place.
Check CONTRIBUTING.md for details.

---

📖 License

Licensed under MIT, free to use, modify, and distribute, including in closed-source projects. See LICENSE for details.