This technique consist of moving a block (player) on a 2D map and "cast" rays until rays hit a wall. For each pixel of wall hitted, render an equivalent rectangle in another canvas. All this rectangles (with ther correct color and size based on player distance) makes the impression of a fake 3D.
Install Typescript globally:
npm install -g typescript
And run:
npm install
npm start
If you have error running, try to create a folder dist. Sometimes browserify throws an errors if the folder doesn't exist.
A Técnica de Ray-Casting - Márcio Sarroglia Pinho
Raycasting Basics with JavaScript - Gustavo Pezzi
Make Your Own Raycaster Game - 3DSage
Ray Casting em JavaScript - Angelito Goulart
Wolfenstein 3D's map renderer - Mat Godbolt
Ray casting HTML5 con JavaScript - Javier Muniz
Lode's Computer Graphics Tutorial
http://qzx.com/pc-gpe/doom.txt
https://stackoverflow.com/questions/47239797/ray-casting-with-different-height-size