This is a simple raycasting engine implemented in Go using SDL2. It simulates a 3D environment similar to the rendering technique used in classic games like Wolfenstein 3D.

Features

Real-time 3D projection with raycasting
Movement and rotation controls
Multiple wall textures loaded from PNG files
Text rendering (e.g., FPS counter or debug text)
SDL2 rendering (no OpenGL or GPU shaders required)

Screenshots

Controls

Key	Action
W	Move Forward
S	Move Backward
A	Rotate Left
D	Rotate Right
F1	Toggle FPS Counter
ESC	Exit Program

Requirements

Go 1.20+
SDL2 (development libraries)
SDL2_ttf (for text rendering)

Asset Licenses

DejaVuSans.ttf

From the DejaVu fonts project

License: Bitstream Vera Fonts License (Free to use, modify, distribute)

Wolfenstein 3D Textures

These textures are derived from the original Wolfenstein 3D game by id Software.