New Javascript Raycasting Engine #3

Working on a new raycasting engine in pure JavaScript, using 2D canvas and no libraries. This time I have added engine generated textures (the "grass" and "water", no graphic assets needed), sprite support (the moving orb) and a particle effects engine (the "blood" particles hitting the floor and sliding down the wall). There is also support for transparent walls now and half size walls, as well as moving walls and doors. Check out the progress here:
https://www.apewebapps.com/cast22-demo/