3D in TypeScript using Ray Casting

This post explores the concept of ray casting in a 3D perspective on a 2D map, utilizing TypeScript for implementation. The author explains the basic setup, including the HTML canvas and transforms, and how to map 2D grid coordinates to screen coordinates. The core of the post delves into the mechanics of the ray casting algorithm, involving direction vectors, linear equations, and snapping points to grid boundaries. The author also discusses various considerations, such as handling zero values in directions and remapping mouse movements to grid coordinates. Finally, a hands-on coding session demonstrates the implementation of the ray casting technique.