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37 lines
1.6 KiB
Markdown
37 lines
1.6 KiB
Markdown
mapgen_rivers
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=============
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Procedural map generator for Minetest 5.x. Focused on river networks, and features valley erosion and lakes.
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Contains two distinct programs: Python scripts for pre-processing, and Lua scripts to generate the map on Minetest.
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# Installation
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This mod should be placed in the `/mods` directory like any other Minetest mod.
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The Python part relies on external libraries that you need to install:
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- `numpy` and `scipy`, widely used libraries for numerical calculations
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- `noise`, doing Perlin/Simplex noises
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- optionally, `matplotlib` (for map preview)
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They are commonly found on `pip` or `conda` Python distributions.
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# Usage
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By default, the mod contains a demo 400x400 map (so you can start the game directly), but it is recommended that you run the pre-processing script to generate a new map before world creation, if you can.
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## Pre-processing
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Run the script `terrain_rivers.py` via command line. You can optionally append the map size (by default 400). Example for a 1000x1000 map:
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```
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./terrain_rivers.py 1000
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```
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For a default 400x400 map, it should take between 1 and 2 minutes. It will generate 5 files directly in the mod folder, containing the map data.
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If you have `matplotlib` installed, the script `view_map.py` can be used to get a map preview. Example:
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```
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./view_map.py data/
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```
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## Map generation
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Just create a Minetest world with `singlenode` mapgen, enable this mod and start the world. The data files are immediately copied in the world folder so you can re-generate them afterwards, it won't affect the old worlds.
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