AStar example at <<AdvanceEDActionScriptAnimation>> with Green Thread mechanism optimization.
Kind of(normal/isometric/hexagons) AS3 grid/board representation.
see: http://en.wikipedia.org/wiki/Green_threads
AS3Logger: https://github.com/yangboz/as3Logger
AS3 green thread: http://blog.generalrelativity.org/actionscript-30/green-threads/
AStar tutorials: http://www.policyalmanac.org/games/aStarTutorial.htm