Converts a Minecraft world into a Minetest world. Compared to the mcimport tool written in Python it is very fast, and also allows for multhreading the workflow making it even faster.
This tool should be compatible with Minecraft worlds stored in Scaevolous' McRegion format as well as Anvil format, up until Minecraft 1.12 (pre-flattening). It is however recommended that if you have a world in an older version of Minecraft that you fully upgrade it to the 1.12 Anvil format for best support as that is what the program is usually tested against.
If you have a Minecraft world post-flattening (i.e. 1.13 or newer), then you can convert it to the 1.12 format using Amulet.
When mapping Minecraft block IDs and data values into Minetest itemstrings and param2 values, a set of mappings for Mineclonia is used which can be found at src/conversions.h. When you put the converted world into your worlds folder it will be visible in the main menu when you select Mineclonia (not MineClone2, not Minetest Game).
Currently, the mappings are mostly complete for basic full building blocks, as that is what my usecase for a converter program is. If you convert a world that contains more complex blocks and it gets converted wrongly then please help fixing them so it can become better.
It is a command-line program. Call it from the terminal with two arguments, first argument is the input Minecraft world and second argument is the output Minetest world. For example:
./MC2MT ~/.minecraft/worlds/cool_world/ ~/.minetest/worlds/cool_world/The program will also make a world.mt file as well as a worldmod that sets the mapgen to singlenode along with other things. If it detects a map database already present in the output location it will ask you before overwriting it.
There is CI in place for building on Windows, macOS and Linux, which also produce binary artifacts that get uploaded to the rolling release tag. This is especially useful for Windows and macOS users who do not want to compile, but the Linux binary may not work for you depending on what distribution you are on and you would want to build from source using the instructions below.
All instructions below assume you have already downloaded or cloned the source code somewhere (e.g. git clone https://github.com/rollerozxa/MC2MT).
Install the dependencies. In addition to a compiler toolchain, MC2MT requires SQLite3 and Zlib.
Debian-based distros:
sudo apt install g++ cmake ninja-build libsqlite3-dev zlib1g-devArch-based distros:
sudo pacman -S base-devel cmake ninja sqlite zlibThen generate the build files with CMake and build:
cmake . -G Ninja
ninjaThe resulting executable can be found as ./bin/MC2MT.
Install MSYS2. When greeted with the UCRT64 terminal (icon with gold background), run the following command to install dependencies:
pacman -S mingw-w64-ucrt-x86_64-{gcc,cmake,ninja,zlib,sqlite3}Then generate the build files with CMake and build:
cmake . -G Ninja
ninjaThe resulting executable can be found as ./bin/MC2MT.exe.
The executable can be run perfectly fine inside of the UCRT64 environment, but if you want to run it outside of MSYS2 (somewhy) then you will need to bundle the necessary DLL files next to it. To collect them up see the msys2-bundledlls script, or how the CI does it to statically link the necessary libraries into the executable.
You will need to install Termux. When installed, install the following packages in Termux:
pkg install clang cmake ninja libsqlite zlibThen build:
cmake . -G Ninja
ninjaThe resulting executable can be found as ./bin/MC2MT.
You will need to install Homebrew. When installed, install the following packages with Homebrew:
brew install cmake ninja sqlite zlibThen build:
cmake . -G Ninja
ninjaThe resulting executable can be found as ./bin/MC2MT.
The original MC2MT was written by ShadowNinja, assumedly rewriting things from the Python mcimport project by sofar, Ekdohibs et al.
The Mineclonia node mappings are based on the mcimport node mappings for MineClone2 by MysticTempest.
License: LGPLv2.1+