qiao/PathFinding.js — pull request #82 by esihaj (2014-12-23 23:42:41+00:00)
Title: Update Heuristic.js

changed manhattan to = 100 * manhattan
this is much better lower bound and significantly reduces overall vertex scanning
almost based on Reach for A*: Efficient Point-to-Point Shortest Path Algorithms
http://research.microsoft.com/apps/pubs/default.aspx?id=64511