Game engine

Made by Hidde Meiburg

Setup

All you need to run is the update_glslang_sources.py from the glslang library (cd /lib/glslang and run it with python update_glslang_sources.py)
And then install the dependecies used by Vulkan and GLFW (see below)
Then you can compile this gameengine with CMake

!!!! This project is using c++26 features (reflection) !!!!
These can be enabled as followed (in CMakeLists.txt):

set(CMAKE_CXX_STANDARD 26)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

(Right now only a Clang version by bloomberg (see Github) supports the required features)

Features

• Vulkan renderer
• TTF binary parser + TTF font program executor
• SDF maker for the text
• HTTP and Websocket server (with easy communication making use of c++26 reflection, see Network::WebsocketHandler)
• Impulse based physics
• Serialization (with c++26 reflection, also used for websocket communication)

Libraries used

• asio (async tcp sockets)
• entt (entity component system)
• glfw (multi platform window creation)
• glslang (glsl shader compilation)
• stb-images (image loading)
• FontAwesome (nice looking html icons)

Example dependency install command for Fedora

You need to install a c++ compiler (with c++26 support for reflection) + cmake (optionally doxygen for generating the docs).
Then you also need to install the dependencies for:

• Vulkan see vulkan-tutorial.com
• GLFW see the depedencies section on www.glfw.org

sudo dnf upgrade -y &&\
sudo dnf install -y g++ &&\
sudo dnf install -y git &&\
sudo dnf install -y cmake &&\
sudo dnf install -y doxygen &&\
sudo dnf install -y python3 &&\
sudo dnf install -y gdb &&\
sudo dnf install -y libxkbcommon-devel && \
sudo dnf install -y libXcursor-devel libXi-devel libXinerama-devel libXrandr-devel &&\
sudo dnf install -y vulkan-loader-devel &&\
sudo dnf install -y vulkan-validation-layers && \
sudo dnf install -y wayland-devel &&\
sudo dnf install -y libasan

How to compile bloomberg clang for Fedora

The bloomberg's version of Clang (at the moment of writing) is the only compiler with c++26 reflection support
It's binaries aren't available, so you need to compile it yourself.
This is how to compile on a Fedora like system:

# Get the source
cd <to the directory you want to put the source>
git clone https://github.com/bloomberg/clang-p2996.git --branch p2996 --depth 1 ${name_of_source_directory}

# Compile clang, libc++ and the sanitizers
# An example of a target tripple is x86_64-redhat-linux
cd ${name_of_source_directory}
cmake -B ${Your_build_directory} -G "Unix Makefiles" -S llvm \
-DLLVM_ENABLE_PROJECTS='clang;clang-tools-extra' \
-DLLVM_ENABLE_RUNTIMES='libcxx;libcxxabi;libunwind;compiler-rt' \
-DCMAKE_BUILD_TYPE=Release \
-DLLVM_DEFAULT_TARGET_TRIPLE=$(gcc -dumpmachine) \
-DCMAKE_INSTALL_PREFIX=/usr/local \
-DLIBCXX_HARDENING_MODE=extensive # This is need to generated the __config_site
cd ${Your_build_directory}
sudo make install -j12 # Compile with 12 cores

# Let the system be able to find libc++
echo "/usr/local/lib/$(gcc -dumpmachine)" | sudo tee /etc/ld.so.conf.d/libcxx-custom.conf
sudo ldconfig