Minetest Mapper C++

Minetestmapper generates an overview image from a Minetest map.

A port of minetestmapper.py to C++ from https://github.com/minetest/minetest/tree/0.4.17/util. This version is both faster and provides more features than the now obsolete Python script.

Minetestmapper ships with a colors.txt file for Minetest Game, if you use a different game or have many mods installed you should generate a matching colors.txt for better results. The generate_colorstxt.py script in the util folder exists for this purpose, detailed instructions can be found within.

Requirements

• C++ compiler, zlib, zstd
• libgd
• sqlite3
• LevelDB (optional)
• hiredis (optional)
• Postgres libraries (optional)

on Debian/Ubuntu:

sudo apt install cmake libgd-dev libhiredis-dev libleveldb-dev libpq-dev libsqlite3-dev zlib1g-dev libzstd-dev

on openSUSE:

sudo zypper install gd-devel hiredis-devel leveldb-devel postgresql-devel sqlite3-devel zlib-devel libzstd-devel

for Windows:

Minetestmapper for Windows can be downloaded from the Releases section.

After extracting the archive, it can be invoked from cmd.exe:

cd C:\Users\yourname\Desktop\example\path
minetestmapper.exe --help

Compilation

cmake . -DENABLE_LEVELDB=1
make -j$(nproc)

Usage

minetestmapper has two mandatory paremeters, -i (input world path) and -o (output image path).

./minetestmapper -i ~/.minetest/worlds/my_world/ -o map.png

Parameters

bgcolor:

Background color of image, e.g. --bgcolor '#ffffff'

scalecolor:

Color of scale marks and text, e.g. --scalecolor '#000000'

playercolor:

Color of player indicators, e.g. --playercolor '#ff0000'

origincolor:

Color of origin indicator, e.g. --origincolor '#ff0000'

drawscale:

Draw scale(s) with tick marks and numbers, --drawscale

drawplayers:

Draw player indicators with name, --drawplayers

draworigin:

Draw origin indicator, --draworigin

drawalpha:

Allow nodes to be drawn with transparency (e.g. water), --drawalpha

extent:

Don't output any imagery, just print the extent of the full map, --extent

noshading:

Don't draw shading on nodes, --noshading

noemptyimage:

Don't output anything when the image would be empty, --noemptyimage

min-y:

Don't draw nodes below this y value, e.g. --min-y -25

max-y:

Don't draw nodes above this y value, e.g. --max-y 75

backend:

Override auto-detected map backend; supported: sqlite3, leveldb, redis, postgresql, e.g. --backend leveldb

geometry:

Limit area to specific geometry (x:z+w+h where x and z specify the lower left corner), e.g. --geometry -800:-800+1600+1600

zoom:

Apply zoom to drawn nodes by enlarging them to n*n squares, e.g. --zoom 4

colors:

Override auto-detected path to colors.txt, e.g. --colors ../minetest/mycolors.txt

scales:

Draw scales on specified image edges (letters t b l r meaning top, bottom, left and right), e.g. --scales tbr

exhaustive:

Select if database should be traversed exhaustively or using range queries, available: never, y, full, auto

Defaults to auto. You shouldn't need to change this, but doing so can improve rendering times on large maps.

For these optimizations to work it is important that you set min-y and max-y when you don't care about the world below e.g. -60 and above 1000 nodes.