A* Pathfinding Example

This is an example of the A* Pathfinding Algorithm that I implemented.  I wanted to show how the same algorithm could be used to navigate many different types of grid.

Click or drag on tiles to raise or lower them.  Press 'Find Path' to see if a path can be found between the two spheres.

All these examples are in 2 dimensions but the same algorithm could just as easily be used to navigate grids in 3 (or more) dimensions.