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68 lines
3.4 KiB
Markdown
68 lines
3.4 KiB
Markdown
# MinedMap
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* Render beautiful maps of your [Minecraft](https://minecraft.net/) worlds!
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* Put them on a webserver and view them in your browser!
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* Compatible with unmodified Minecraft Java Edition 1.8 up to 1.20 (no mod installation necessary!)
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* Illumination layer: the world at night
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* Fast: create a full map for a huge 3GB savegame in less than 5 minutes in single-threaded operation
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* Multi-threading support: pass `-j N` to the renderer to use `N` parallel threads for generation
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* Incremental updates: only recreate map tiles for regions that have changed
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* Typically uses less than 100MB of RAM in single-threaded operation (may be higher when `-j` is passed)
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* Cross-platform: runs on Linux, Windows, and likely other systems like MacOS as well
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## About
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MinedMap consists of two components: a map renderer generating map tiles from
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Minecraft save games, and a viewer for displaying and navigating maps in a browser
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based on [Leaflet](https://leafletjs.com/). The map renderer is heavily inspired by
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[MapRend](https://github.com/YSelfTool/MapRend), but has been reimplemented from scratch
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(first in C++, now in Rust) for highest performance.
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## How to use
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Minecraft stores its save data in a directory `~/.minecraft/saves` on Linux,
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and `C:\Users\<username>\AppData\Roaming\.minecraft\saves`. To generate minedmap
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tile data from a save game called "World", use the a command like the following
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(replacing the first argument with the path to your save data; `viewer` refers
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to the directory where you unpacked the MinedMap viewer):
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```shell
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minedmap ~/.minecraft/saves/World viewer/data
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```
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The first map generation might take a while for big worlds, but subsequent calls will
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only rebuild tiles for region files that have changed, rarely taking more than a second
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or two. This makes it feasible to update the map very frequently, e.g. by running
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MinedMap as a Cron job every minute.
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Note that it is not possible to open the viewer *index.html* without a webserver, as
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it cannot load the generated map information from `file://` URIs. For testing purposes,
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you can use a minimal HTTP server, e.g. if you have Python installed just run the
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following in the viewer directory:
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```shell
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python3 -m http.server
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```
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This test server is very slow and cannot handle multiple requests concurrently, so use
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a proper webserver like [nginx](https://nginx.org/) or upload the viewer together with
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the generated map files to public webspace to make the map available to others.
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## Installation
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Binary builds of the map generator for Linux and Windows, as well as an archive
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containing the viewer can be found on the GitHub release page.
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Building the generator from source requires a recent Rust toolchain (1.72.0
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or newer). The following command can be used to build the current development version:
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```shell
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cargo install --git 'https://github.com/neocturne/MinedMap.git'
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```
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In addition, CMake is needed to build the zlib-ng library. If you do not have
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CMake installed, you can disable the zlib-ng feature by passing `--no-default-features`
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to cargo. A pure-Rust zlib implementation will be used, which is more portable,
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but slower than zlib-ng.
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If you are looking for the older C++ implementation of the MinedMap tile renderer,
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see the [v1.19.1](https://github.com/neocturne/MinedMap/tree/v1.19.1) tag.
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