"Ray casting is the use of ray–surface intersection tests "Glossary of computer graphics" to solve a variety of problems in 3D "Computer graphics" and "Computational geometry". The term was first used in computer graphics in a 1982 paper by Scott Roth to describe a method for rendering "Constructive solid geometry" [1]
After watching this video, I decided to make an implementation of ray casting on python 3.7 through pygame's library.
The first file, "firstperson.py" is a 3d rendering of the environment created. The second file, "topview.py" is a top down view of the environment, with visible rays.
[w,a,s,d] translation [e,q] rotation
[w,a,s,d] translation [mouse wheel] rotation