SDL2 Raycaster

A basic SDL2 raycasting engine written in C++. Raycasting is a rendering technique to create a puedo 3D game from a 2D map. This was done by casting rays for each horizontal screen pixel and calculating the length of the rays using DDA algorithm.

Screenshot

Setup

Linux:

First, make sure you have a C++ compiler installed. Then, install SDL2 and CMake:

sudo apt-get install libsdl2-dev cmake

Build and compile:

cmake 
make

Windows:

Download and install VS with C++ or MinGW-w64. You also will need to download SDL2 for Windows. Then, change the path in CMakeLists.txt to your /SDL2/ folder. Make sure SDL2.dll is in the right directory.

Build and compile:

cmake .. -G "Visual Studio 16 2019" -A x64
cmake --build . --config Release

Replace "Visual Studio 16 2019" with your version of Visual Studio.

References

https://lodev.org/cgtutor/raycasting.html

https://lazyfoo.net/tutorials/SDL/