Here is a little demonstration of A* pathfinding and navigation mesh. The first part of the video shows how I'm generating the navigation mesh and nodes for pathfinding using my editor, and the second part shows A* algorithm in action. Also you can see how I can play the "game" inside the editor.
[media]http:
This can be used for a top down game, or in a sidescroller for flying enemies. It's basic, there is no smooth turning around the corners or avoiding other moving objects and stuff.
More info on my blog:
http://antonior-software.blogspot.hr/2015/09/a-pathfinding-and-navigation-mesh-3.html