Hey yawl! Thought I'd share my recent finds with my favorite programmer community. The Line Of Sight stuff could be applicable to spelunky (i want it to be) but Levelhead is just too fun not to mention.
Monaco is a 4 player, coop, tile based thief game that's in dev right now. It has a beautiful vector based line of sight algorithm that is explained in pseudo-code in the development blog (on facebook

)
Here's the los explination and pics (no video yet..?):
http://www.facebook.com/note.php?note_id=411301481995And a video of someone playing, unfortunately without the new vector LOS:
http://www.youtube.com/watch?v=BK7RkM9LL68&feature=fvwAnnd for dessert
levelHead:
http://ljudmila.org/~julian/levelhead/I want it soo bad but I'm clueless with linux.

maybe i'll try anyway.