what I am working on – 2d shadow casting / line of sight

Used in the video:
Shadow casting tutorial: http://forums.tigsource.com/index.php?topic=8803.0
PNPOLY (point in polygon detection):http://www.ecse.rpi.edu/Homepages/wrf/Research/Short_Notes/pnpoly.html

Also check out:
Amit’s 2d visiblity algorithm: http://www.redblobgames.com/articles/visibility/

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