Knowledge Base

I have some partially-complete notes about how I built a series of static images of the maps of my world in Luanti Mineclonia.

Building maps of my world

1. Install minetestmapper

   sudo apt-get install minetestmapper
   

2. Download https://github.com/luanti-org/minetestmapper/blob/master/util/generate_colorstxt.py

3. Install mod dumpnodes.

   cd ~/.minetest/mods
   git clone https://github.com/Montandalar/dumpnodes
   

4. Ran the game, loaded my world, and ran /dumpnodes which saves to ~/.minetest/worlds/world1/nodes.txt

5. Generate colors.txt.

   cd ~/.minetest/worlds/world1
   python3 ~/Downloads/generate_colorstxt.py --game ~/.minetest/games/mineclonia
   

6. Run the map printout.

   1. Manual step

      minetestmapper -i ~/.minetest/worlds/world1 -o ~/foo1.png
      

   2. Shell script to generate each individual layer.

      	#!/bin/bash
      	# Startdate: 2025-02-24-2 21:41
      	# purpose: make set of maps for each layer of Mineclonia world
      	WORLD="${WORLD:-${1}}"
      	#OUTPUT="${OUTPUT:-${2}}"
      	MAX="${MAX:-128}"
      	MIN="${MIN:--128}"
      	for word in $( seq ${MIN} ${MAX} ) ;
      	do
      	outname="$( printf '%04d' "${word}" )"
      	next="$( printf '%s\n' "${word}-1" | bc )"
      	minetestmapper -i "${HOME}/.minetest/worlds/${WORLD}" -o "${HOME}/Downloads/maps/map${outname}.png" --max-y "${word}" --min-y "${word}"
      	done

Map of my world

Someday I want to replicate some small mapping program that I used for OG minecraft back in 2012, which let you use a slider to scroll through the layers of a world. I used it to look for diamond and interesting structures. It was awesome, and I can't find it in my old files or notes or the Internet.