new raycasting code to check out

[AdamAtomic]

http://bullettimeninja.blogspot.com/2012/01/lasers-and-ray-casting.html

might be main branch material??

[adnissen]

I think it's worth pursuing, to add to the growing amount of AI features that flixel is getting. I know it's not directly used for AI, but it's a huge asset when writing bots for games and all that. Plus it's nice just to have some more complicated things done for us in flixel.