MultiCraft Open Source

MultiCraft Open Source is a free open-source voxel game engine with easy modding and game creation.

MultiCraft is based on the Minetest project, which is developed by a number of contributors.

Copyright © 2014-2023 Maksim Gamarnik [MoNTE48] Maksym48@pm.me & MultiCraft Development Team.

Special thanks to JetBrains for their support of our community!

Table of Contents

1. Further Documentation
2. Default Controls
3. Paths
4. Configuration File
5. Command-line Options
6. Compiling
7. Docker
8. Version Scheme

Further documentation

• Minetest Website: https://minetest.net/
• Minetest Wiki: https://wiki.minetest.net/
• Minetest Developer wiki: https://dev.minetest.net/
• Minetest Forum: https://forum.minetest.net/
• Minetest GitHub: https://github.com/minetest/minetest/
• doc/ directory of source distribution

Default controls

All controls are re-bindable using settings. Some can be changed in the key config dialog in the settings tab.

Button	Action
Move mouse	Look around
W, A, S, D	Move
Space	Jump/move up
Shift	Sneak/move down
Q	Drop itemstack
Shift + Q	Drop single item
Left mouse button	Dig/punch/take item
Right mouse button	Place/use
Shift + right mouse button	Build (without using)
I	Inventory menu
Mouse wheel	Select item
0-9	Select item
Z	Zoom (needs zoom privilege)
T	Chat
/	Command
Esc	Pause menu/abort/exit (pauses only singleplayer game)
R	Enable/disable full range view
+	Increase view range
-	Decrease view range
K	Enable/disable fly mode (needs fly privilege)
P	Enable/disable pitch move mode
J	Enable/disable fast mode (needs fast privilege)
H	Enable/disable noclip mode (needs noclip privilege)
E	Move fast in fast mode
C	Cycle through camera modes
V	Cycle through minimap modes
Shift + V	Change minimap orientation
F1	Hide/show HUD
F2	Hide/show chat
F3	Disable/enable fog
F4	Disable/enable camera update (Mapblocks are not updated anymore when disabled, disabled in release builds)
F5	Cycle through debug information screens
F6	Cycle through profiler info screens
F10	Show/hide console
F12	Take screenshot

Paths

Locations:

• bin - Compiled binaries
• share - Distributed read-only data
• user - User-created modifiable data

Where each location is on each platform:

• Windows .zip / RUN_IN_PLACE source:
  • bin = bin
  • share = .
  • user = .
• Windows installed:
  • bin = C:\Program Files\MultiCraft\bin (Depends on the install location)
  • share = C:\Program Files\MultiCraft (Depends on the install location)
  • user = %APPDATA%\MultiCraft
• Linux installed:
  • bin = /usr/bin
  • share = /usr/share/multicraft
  • user = ~/.multicraft
• macOS:
  • bin = Contents/MacOS
  • share = Contents/Resources
  • user = Contents/User OR ~/Library/Application Support/multicraft

Worlds can be found as separate folders in: user/worlds/

Configuration file

• Default location: user/multicraft.conf
• This file is created by closing MultiCraft for the first time.
• A specific file can be specified on the command line: --config <path-to-file>
• A run-in-place build will look for the configuration file in location_of_exe/../multicraft.conf and also location_of_exe/../../multicraft.conf

Command-line options

• Use --help

Compiling

Compiling on GNU/Linux

Dependencies

Dependency	Version	Commentary
GCC	4.9+	Can be replaced with Clang 3.4+
CMake	2.6+
Irrlicht	1.7.3+
SQLite3	3.0+
LuaJIT	2.0+	Bundled Lua 5.1 is used if not present
GMP	5.0.0+	Bundled mini-GMP is used if not present
JsonCPP	1.0.0+	Bundled JsonCPP is used if not present

For Debian/Ubuntu users:

sudo apt install g++ make libc6-dev libirrlicht-dev cmake libbz2-dev libpng-dev libjpeg-dev libxxf86vm-dev libgl1-mesa-dev libsqlite3-dev libogg-dev libvorbis-dev libopenal-dev libcurl4-gnutls-dev libfreetype6-dev zlib1g-dev libgmp-dev libjsoncpp-dev

For Fedora users:

sudo dnf install make automake gcc gcc-c++ kernel-devel cmake libcurl-devel openal-soft-devel libvorbis-devel libXxf86vm-devel libogg-devel freetype-devel mesa-libGL-devel zlib-devel jsoncpp-devel irrlicht-devel bzip2-libs gmp-devel sqlite-devel luajit-devel leveldb-devel ncurses-devel doxygen spatialindex-devel bzip2-devel

For Arch users:

sudo pacman -S base-devel libcurl-gnutls cmake libxxf86vm irrlicht libpng sqlite libogg libvorbis openal freetype2 jsoncpp gmp luajit leveldb ncurses

For Alpine users:

sudo apk add build-base irrlicht-dev cmake bzip2-dev libpng-dev jpeg-dev libxxf86vm-dev mesa-dev sqlite-dev libogg-dev libvorbis-dev openal-soft-dev curl-dev freetype-dev zlib-dev gmp-dev jsoncpp-dev luajit-dev

Download

You can install Git for easily keeping your copy up to date. If you don’t want Git, read below on how to get the source without Git. This is an example for installing Git on Debian/Ubuntu:

sudo apt install git

For Fedora users:

sudo dnf install git

Download source (this is the URL to the latest of source repository, which might not work at all times) using Git:

git clone --depth 1 https://github.com/MultiCraft/MultiCraft.git
cd MultiCraft

Download source, without using Git:

wget https://github.com/MultiCraft/MultiCraft/archive/main.tar.gz
tar xf main.tar.gz
cd MultiCraft-main

Build

Build a version that runs directly from the source directory:

cmake . -DRUN_IN_PLACE=TRUE
make -j$(nproc)

Run it:

./bin/multicraft

• Use cmake . -LH to see all CMake options and their current state.
• If you want to install it system-wide (or are making a distribution package), you will want to use -DRUN_IN_PLACE=FALSE.
• You can build a bare server by specifying -DBUILD_SERVER=TRUE.
• You can disable the client build by specifying -DBUILD_CLIENT=FALSE.
• You can select between Release and Debug build by -DCMAKE_BUILD_TYPE=<Debug or Release>.
  • Debug build is slower, but gives much more useful output in a debugger.
• If you build a bare server you don't need to have Irrlicht installed.
  • In that case use -DIRRLICHT_SOURCE_DIR=/the/irrlicht/source.

CMake options

General options and their default values:

BUILD_CLIENT=TRUE          - Build MultiCraft client
BUILD_SERVER=FALSE         - Build MultiCraft server
BUILD_UNITTESTS=TRUE       - Build unittest sources
CMAKE_BUILD_TYPE=Release   - Type of build (Release vs. Debug)
    Release                - Release build
    Debug                  - Debug build
    SemiDebug              - Partially optimized debug build
    RelWithDebInfo         - Release build with debug information
    MinSizeRel             - Release build with -Os passed to compiler to make executable as small as possible
ENABLE_CURL=ON             - Build with cURL; Enables use of online mod repo, public serverlist and remote media fetching via http
ENABLE_CURSES=ON           - Build with (n)curses; Enables a server side terminal (command line option: --terminal)
ENABLE_FREETYPE=ON         - Build with FreeType2; Allows using TTF fonts
ENABLE_GETTEXT=ON          - Build with Gettext; Allows using translations
ENABLE_GLES=OFF            - Build for OpenGL ES instead of OpenGL (requires support by Irrlicht)
ENABLE_LEVELDB=ON          - Build with LevelDB; Enables use of LevelDB map backend
ENABLE_POSTGRESQL=ON       - Build with libpq; Enables use of PostgreSQL map backend (PostgreSQL 9.5 or greater recommended)
ENABLE_REDIS=ON            - Build with libhiredis; Enables use of Redis map backend
ENABLE_SPATIAL=ON          - Build with LibSpatial; Speeds up AreaStores
ENABLE_SOUND=ON            - Build with OpenAL, libogg & libvorbis; in-game sounds
ENABLE_LUAJIT=ON           - Build with LuaJIT (much faster than non-JIT Lua)
ENABLE_PROMETHEUS=OFF      - Build with Prometheus metrics exporter (listens on tcp/30000 by default)
ENABLE_SYSTEM_GMP=ON       - Use GMP from system (much faster than bundled mini-gmp)
ENABLE_SYSTEM_JSONCPP=OFF  - Use JsonCPP from system
OPENGL_GL_PREFERENCE=LEGACY - Linux client build only; See CMake Policy CMP0072 for reference
RUN_IN_PLACE=FALSE         - Create a portable install (worlds, settings etc. in current directory)
ENABLE_UPDATE_CHECKER=TRUE - Whether to enable update checks by default
USE_GPROF=FALSE            - Enable profiling using GProf
VERSION_EXTRA=             - Text to append to version (e.g. VERSION_EXTRA=foobar -> MultiCraft 0.4.9-foobar)
ENABLE_TOUCH=FALSE         - Enable Touchscreen support (requires support by IrrlichtMt)

Library specific options:

BZIP2_INCLUDE_DIR               - Linux only; directory where bzlib.h is located
BZIP2_LIBRARY                   - Linux only; path to libbz2.a/libbz2.so
CURL_DLL                        - Only if building with cURL on Windows; path to libcurl.dll
CURL_INCLUDE_DIR                - Only if building with cURL; directory where curl.h is located
CURL_LIBRARY                    - Only if building with cURL; path to libcurl.a/libcurl.so/libcurl.lib
EGL_INCLUDE_DIR                 - Only if building with GLES; directory that contains egl.h
EGL_LIBRARY                     - Only if building with GLES; path to libEGL.a/libEGL.so
FREETYPE_INCLUDE_DIR_freetype2  - Only if building with FreeType 2; directory that contains an freetype directory with files such as ftimage.h in it
FREETYPE_INCLUDE_DIR_ft2build   - Only if building with FreeType 2; directory that contains ft2build.h
FREETYPE_LIBRARY                - Only if building with FreeType 2; path to libfreetype.a/libfreetype.so/freetype.lib
FREETYPE_DLL                    - Only if building with FreeType 2 on Windows; path to libfreetype.dll
GETTEXT_DLL                     - Only when building with gettext on Windows; path to libintl3.dll
GETTEXT_ICONV_DLL               - Only when building with gettext on Windows; path to libiconv2.dll
GETTEXT_INCLUDE_DIR             - Only when building with gettext; directory that contains iconv.h
GETTEXT_LIBRARY                 - Only when building with gettext on Windows; path to libintl.dll.a
GETTEXT_MSGFMT                  - Only when building with gettext; path to msgfmt/msgfmt.exe
IRRLICHT_DLL                    - Only on Windows; path to Irrlicht.dll
IRRLICHT_INCLUDE_DIR            - Directory that contains IrrCompileConfig.h
IRRLICHT_LIBRARY                - Path to libIrrlicht.a/libIrrlicht.so/libIrrlicht.dll.a/Irrlicht.lib
LEVELDB_INCLUDE_DIR             - Only when building with LevelDB; directory that contains db.h
LEVELDB_LIBRARY                 - Only when building with LevelDB; path to libleveldb.a/libleveldb.so/libleveldb.dll.a
LEVELDB_DLL                     - Only when building with LevelDB on Windows; path to libleveldb.dll
PostgreSQL_INCLUDE_DIR          - Only when building with PostgreSQL; directory that contains libpq-fe.h
PostgreSQL_LIBRARY              - Only when building with PostgreSQL; path to libpq.a/libpq.so/libpq.lib
REDIS_INCLUDE_DIR               - Only when building with Redis; directory that contains hiredis.h
REDIS_LIBRARY                   - Only when building with Redis; path to libhiredis.a/libhiredis.so
SPATIAL_INCLUDE_DIR             - Only when building with LibSpatial; directory that contains spatialindex/SpatialIndex.h
SPATIAL_LIBRARY                 - Only when building with LibSpatial; path to libspatialindex_c.so/spatialindex-32.lib
LUA_INCLUDE_DIR                 - Only if you want to use LuaJIT; directory where luajit.h is located
LUA_LIBRARY                     - Only if you want to use LuaJIT; path to libluajit.a/libluajit.so
MINGWM10_DLL                    - Only if compiling with MinGW; path to mingwm10.dll
OGG_DLL                         - Only if building with sound on Windows; path to libogg.dll
OGG_INCLUDE_DIR                 - Only if building with sound; directory that contains an ogg directory which contains ogg.h
OGG_LIBRARY                     - Only if building with sound; path to libogg.a/libogg.so/libogg.dll.a
OPENAL_DLL                      - Only if building with sound on Windows; path to OpenAL32.dll
OPENAL_INCLUDE_DIR              - Only if building with sound; directory where al.h is located
OPENAL_LIBRARY                  - Only if building with sound; path to libopenal.a/libopenal.so/OpenAL32.lib
OPENGLES2_INCLUDE_DIR           - Only if building with GLES; directory that contains gl2.h
OPENGLES2_LIBRARY               - Only if building with GLES; path to libGLESv2.a/libGLESv2.so
SQLITE3_INCLUDE_DIR             - Directory that contains sqlite3.h
SQLITE3_LIBRARY                 - Path to libsqlite3.a/libsqlite3.so/sqlite3.lib
VORBISFILE_DLL                  - Only if building with sound on Windows; path to libvorbisfile-3.dll
VORBISFILE_LIBRARY              - Only if building with sound; path to libvorbisfile.a/libvorbisfile.so/libvorbisfile.dll.a
VORBIS_DLL                      - Only if building with sound on Windows; path to libvorbis-0.dll
VORBIS_INCLUDE_DIR              - Only if building with sound; directory that contains a directory vorbis with vorbisenc.h inside
VORBIS_LIBRARY                  - Only if building with sound; path to libvorbis.a/libvorbis.so/libvorbis.dll.a
XXF86VM_LIBRARY                 - Only on Linux; path to libXXf86vm.a/libXXf86vm.so
ZLIB_DLL                        - Only on Windows; path to zlib1.dll
ZLIB_INCLUDE_DIR                - Directory that contains zlib.h
ZLIB_LIBRARY                    - Path to libz.a/libz.so/zlib.lib

Compiling on Windows

Requirements

• Visual Studio 2015 or newer
• CMake
• vcpkg
• Git

Compiling and installing the dependencies

It is highly recommended to use vcpkg as package manager.

a) Using vcpkg to install dependencies

After you successfully built vcpkg you can easily install the required libraries:

vcpkg install irrlicht zlib curl[winssl] openal-soft libvorbis libogg sqlite3 freetype luajit gmp jsoncpp --triplet x64-windows

• curl is optional, but required to read the serverlist, curl[winssl] is required to use the content store.
• openal-soft, libvorbis and libogg are optional, but required to use sound.
• freetype is optional, it allows true-type font rendering.
• luajit is optional, it replaces the integrated Lua interpreter with a faster just-in-time interpreter.
• gmp and jsoncpp are optional, otherwise the bundled versions will be compiled

There are other optional libraries, but they are not tested if they can build and link correctly.

Use --triplet to specify the target triplet, e.g. x64-windows or x86-windows.

b) Compile the dependencies on your own

This is outdated and not recommended. Follow the instructions on https://dev.minetest.net/Build_Win32_Minetest_including_all_required_libraries#VS2012_Build

Compile MultiCraft

a) Using the vcpkg toolchain and CMake GUI

1. Start up the CMake GUI
2. Select Browse Source... and select DIR/multicraft
3. Select Browse Build... and select DIR/multicraft-build
4. Select Configure
5. Choose the right visual Studio version and target platform. It has to match the version of the installed dependencies
6. Choose Specify toolchain file for cross-compiling
7. Click Next
8. Select the vcpkg toolchain file e.g. D:/vcpkg/scripts/buildsystems/vcpkg.cmake
9. Click Finish
10. Wait until cmake have generated the cash file
11. If there are any errors, solve them and hit Configure
12. Click Generate
13. Click Open Project
14. Compile MultiCraft inside Visual studio.

b) Using the vcpkg toolchain and the commandline

Run the following script in PowerShell:

cmake . -G"Visual Studio 15 2017 Win64" -DCMAKE_TOOLCHAIN_FILE=D:/vcpkg/scripts/buildsystems/vcpkg.cmake -DCMAKE_BUILD_TYPE=Release -DENABLE_GETTEXT=OFF -DENABLE_CURSES=OFF -DENABLE_SYSTEM_JSONCPP=ON
cmake --build . --config Release

Make sure that the right compiler is selected and the path to the vcpkg toolchain is correct.

c) Using your own compiled libraries

This is outdated and not recommended

Follow the instructions on https://dev.minetest.net/Build_Win32_Minetest_including_all_required_libraries#VS2012_Build

Windows Installer using WiX Toolset

Requirements:

• Visual Studio 2017
• WiX Toolset

In the Visual Studio 2017 Installer select Optional Features -> WiX Toolset.

Build the binaries as described above, but make sure you unselect RUN_IN_PLACE.

Open the generated project file with Visual Studio. Right-click Package and choose Generate. It may take some minutes to generate the installer.