Raycasting engine - Wolfenstein 3d like

At the time the 3d engines in the video game did not exist, a technique was beginning to emerge, the raycasting. It allowed simulate 3d basic, limited display cube and horizontal planes.
One of my school projects was to reproduce this technique. I am amused by this opportunity to add textures and a skybox. The project uses a library from the school.

Find the source code here: https://github.com/Hantlowt/wolf3d