| IAStarHeuristic<T> | (c) 2010 Nicolas Gramlich (c) 2011 Zynga Inc. |
| AStarPathFinder<T> | TODO Nodes could be recycle in a pool. |
| EuclideanHeuristic<T> | (c) 2010 Nicolas Gramlich (c) 2011 Zynga Inc. |
| ManhattanHeuristic<T> | (c) 2010 Nicolas Gramlich (c) 2011 Zynga Inc. |
| NullHeuristic<T> | (c) 2010 Nicolas Gramlich (c) 2011 Zynga Inc. |