BlueMap: FTBChunks

Server-side addon that shows FTB Chunks team claims on your BlueMap web map. See who owns what at a glance, with rich team info popups.

⚠️ 1.20.1 build requires Java 21 and BlueMap 5.12+. It will not work on Java 17 or older BlueMap versions.

What it does

• Renders every claimed chunk from FTB Chunks as a colored marker on BlueMap
• Both flat 2D and 3D extruded marker layers, toggleable per-map
• Groups adjacent claims into single regions (no per-chunk marker spam)
• Click a claim to see team info: name, color, members (online/offline), avatars, area, center coords
• Live updates when chunks are claimed / unclaimed
• Persists state across restarts so the map is correct immediately after server start
• Works across all dimensions (Overworld, Nether, End, custom)

Commands

All under /blueftbchunks (requires permission level 2 / op):

Command What it does /blueftbchunks reload Full memory flush, reload from disk, re-sync with FTB Chunks, re-render all markers /blueftbchunks data save Force a save of the current claim state to disk /blueftbchunks data init Clear data, reload from file, re-sync — without touching markers /blueftbchunks data status Show how many chunks / teams / dimensions are tracked, and time since last save

 

Config

Created on first run at config/blueftbchunks-common.toml:

# Toggle FTB Chunks integration entirely. ftbChunksEnabled = true   # How often to re-sync with FTB Chunks (ms). claimUpdateIntervalMs = 60000   # Wait this long after server start before first claim sync (ms). # Increase if claims don't show up on restart. startupDelayMs = 3000    

Saved claim state lives in <world>/blueftbchunks/claim_data.json. Auto-saves every 5 minutes if dirty.

Notes

• This is a fork / port of FTB Chunks for BlueMap by Fabra, originally written for NeoForge 1.21.1. This release is a backport to Forge 1.20.1 for servers on the 1.20.1 line who want claim visibility on BlueMap 5.12.
• Issues / suggestions → GitHub (link below)

Credits

• Fabra — original NeoForge 1.21.1 version
• PiglinMine / Big_Energy — Forge 1.20.1 port
• BlueColored — BlueMap
• FTB Team — FTB Chunks / Teams / Library

License

MIT