This generator is designed create wave maps that allow an entity to find the shortest route around obstacles. This is based on my wavefront algorithm generator.
Click floor, wall and destination to select it, then click anywhere on the grid to place that object. Click 'Start Pathfinding' and watch the entity make use of the wave map that has been generated to find the shortest route towards the destination.
This system could be used in a game to help entities navigate around a map that can change on the dyanmically.