OpenMRac

OpenMRac is a split-screen racing game. It is a tweaked source release of MultiRacer.

Programming was done by Vojtěch Salajka.
Porting to big endian architectures for Amiga-like OSes was done by Szilárd Biró.

⚠️ Beware! The source code is old and messy, plus most comments are in Czech 😁

Creating forks and porting to additional platforms is encouraged, but these typically will not be merged back to the main repo. The same applies to mods.

Franticware claims rights to the name "MultiRacer" which should not be used by other parties for their products or ports. That is the reason for changing the title to OpenMRac, to which no such restrictions apply.

Game data files are in a separate repository under a different license: https://github.com/Franticware/OpenMRac-data

Installation Instructions

Windows

Create new folder "OpenMRac"

Open the folder you created in the terminal.

I have created a CMakeLists.txt file inside /src to configure our build and include all the required libraries in this project.

Prerequisites:

• CMake
• Msys2
• Ninja winget install Ninja-build.Ninja

Let's install our libraries

• Open msys2 Shell

pacman -S mingw-w64-x86_64-toolchain
pacman -S --needed mingw-w64-x86_64-cmake mingw-w64-x86_64-ninja
pacman -S mingw-w64-x86_64-SDL2
pacman -S mingw-w64-x86_64-glew
pacman -S mingw-w64-x86_64-zlib
pacman -S mingw-w64-x86_64-libpng
pacman -S mingw-w64-x86_64-libjpeg-turbo
pacman -S mingw-w64-x86_64-openal
pacman -S mingw-w64-x86_64-glm

We'll need these later to build our dat file (Game data)

pacman -S make tar coreutils findutils gawk sox

Let's build our executable

• Open Mingw64 shell (This is important because we are using g++ and gcc as a compiler-driver)

git clone https://github.com/Franticware/OpenMRac.git
cd openmrac/src


cmake -S . -B build -G Ninja
cmake --build build

• The game file will be in "\OpenMRac\OpenMRac\src\build\bin\OpenMRac.exe"

Let's build our Data

We don't need to do any converting we just need to run make to execute our makefile in "\OpenMRac\OpenMRac-data"

• Open Mingw64 shell

cd [RelativePathTo OpenMRac-data]

make

This will create our .dat file (openmrac.dat), copy the generated file to "\OpenMRac\OpenMRac\src\build\bin"

Copy DLLs

Since our executable is dynamically linked against our libraries; we need to copy some dlls to the executable folder

• SDL2.dll
• glew32.dll
• libopenal-1.dll/openal32.dll
• libwinpthread-1
• libstdc++-6
• libpng16-16
• libjpeg-8
• libgcc_s_seh-1

Linux

Arch-based (Arch, Manjaro, EndeavourOS, ...)

Install openmrac package from AUR

Debian-based (Debian, Raspberry Pi OS, Ubuntu, MX Linux, Mint, ...)

• The openmrac and openmrac-data packages are now available in many Debian-based distributions. If not, please use method described in the following section (Other).

• Note: The openmrac-es2 package is planned (OpenGL ES 2.0 variant) which might be better suited for SBCs based on RISC-V and ARM.

Other (openSUSE, Fedora, ...)

git clone https://github.com/Franticware/OpenMRac-data.git
cd OpenMRac-data
make install
cd ..

git clone https://github.com/Franticware/OpenMRac.git
cd OpenMRac/src
make -f Makefile.linux install
cd ../..

Windows

Mac OS X

TODO

Branches

• main - current SDL 2 version, OpenGL with shaders
• legacy - older SDL 1.2 version, OpenGL 1.x (no shaders)
• dos-3dfx - version for DOS with 3dfx cards, based on the legacy branch