Here are the feature differences between the Free and Pro version of the A* Pathfinding Project.
The Pro version can be purchased in the Unity Asset Store.
| Feature | A* Pro | A* Free |
|---|---|---|
| Grid graphs | ||
| - Graph updates | ||
| - Graph linecast | ||
| Use textures for penalty, walkability etc. | ||
| Point graphs (aka List Graph) | ||
| - Graph updates | ||
| Navmesh graphs | ||
| - Graph linecast | ||
| Recast automatic navmesh generation | ||
| Graph saving to file | ||
| Path modifiers (smoothing and simplification) | ||
| - Funnel algorithm | ||
| - Advanced path smoother (smooths paths with turning radiuses) | ||
| Optimizations using #defines | ||
| Bounding Box Trees for navmeshes (much faster GetNearest node searches) | ||
| Multithreading | ||
| Local Avoidance (beta) | ||
| More built-in path types (multiple target path, flee path and more) | ||
| Cached startups (no calculation time at start) |




Sorry if this is mentioned somewhere, I couldn’t find anything from searching- but what does Graph linecast do? I see that it’s a feature of the grid graph in pro, but not free.. I don’t see it in the documentation anywhere..
I know, it isn’t that well documented. Linecasts for graphs works the same way as Physics.Linecast does in Unity. It tells you if (and if so, where) a line from point A to B intersects with some graph obstacle. Think of it as “Can this point see that point?”. It is, among other things used for the Start End modifier on the Seeker so that the endpoints don’t end up outside the walkable area.
You can also use it using script, for example the GridGraph has the Linecast function which you can use.
Can the free version be used in a commercial project? With credit to you? Please, respond. Thanks
Yes it can! A credit is appreciated.
Can the AI be made to follow moving objects in real-time?
No problem there. The default AI script will enable you to do that.
What are the performances on ios?
Thanks
See this thread:
http://www.arongranberg.com/forums/topic/iphoneipad-performance/
good!very good!