CleverRaven/Cataclysm-DDA — pull request #7722 by bdragon28 (2014-05-22 18:32:39+00:00)
Title: Hoist sight_points up to the caller of overmap_los() to prevent recalculating the sight range repeatedly during draw.

This improves map scrolling speed to "tolerable' on my -D_GLIBCXX_DEBUG build.