Just a sample game engine - mostly as a learning experiment. Built in C++ on top of SDL, scriptable in Lua through Sol2 bindings. Cross platform thanks to CMake, and compiles to wasm and js via emscripten.

• git clone REPO
• cd game_engine
• git submodule update --init
• open the folder with Visual Studio, it should detect CMake automatically
• right-click on CMakeLists.txt, then click "Debug" to run the project
• the sample folder, which contains a test game, is symlinked alongside the compiled executable, so modify main.lua and it should be fine

Make sure these dependencies are installed and in your terminal PATH (easy enough with chocolatey):

• CMake (choco install -y cmake --installargs 'ADD_CMAKE_TO_PATH=User')
• Ninja (choco install -y ninja)
• Python (choco install -y python --version=3.9.5)

• open a developer command prompt (in Visual Studio, Tools->Command Line->Developer Command Prompt)
• run the following commands:

cd externals\emsdk
emsdk install latest
emsdk activate latest
emcc --check

At this point, there might be some errors. Run emsdk list to see if you can install them through emsdk. For example:

emsdk install fastcomp-clang-e1.38.30-64bit
emsdk activate fastcomp-clang-e1.38.30-64bit

In the same terminal:

# back to the root folder
emcmake cmake . -B web-build -G Ninja
# this is the command that you will re-run every time you want to recompile
cmake --build web-build

Since WASM is only possible when files are served from a server, run python -m http.server (in another terminal) to quickly serve your files, and navigate to localhost:8000 to test it.

# reactivate the environment
externals\emsdk\emsdk_env.bat
# recompile the sources
cmake --build web-build

• Lua, as a submodule, will be built from source and compiled to a static lib
• SDL, as a submodule, will be build from source and compiled to a static lib
• Sol, as a single header
• emsdk, as a submodule