I have posted a JavaScript raycaster last week (disussed here: http://news.ycombinator.com/item?id=3070500 http://news.ycombinator.com/item?id=3070500) and have

I have posted a JavaScript raycaster last week (disussed here: http://news.ycombinator.com/item?id=3070500 http://news.ycombinator.com/item?id=3070500) and have since updated it to a new render engine. Instead of the grid-based level that supports only orthogonal walls, the level now consists of vector-based walls which requires a different method of raycasting.