I can see a lot has gone into this asset and it has great potential. But there are no docs at all. The help feature is not working. The link to the forum take you to the forum but he then forwards you to the asset store. links to support website not working. Bugs bugs and more bugs So basically he still wants to sell this product even though hes offering no support. Also this is against the asset store terms. you have to supply some basic docs or support. What a shame you let this asset go to waste.

It compiles fine with 4.5.5 but not with Unity 5.3.

I have some problem running the demo scene. I wrote to the support about a week ago and have not got any response.

I have been using this for few months. Pros: * Very good implementation of behaviour trees * Intuitive and easy to understand, nice editor * Good performance, not invasive to the rest of the project code * Very good visual debugger: visualization of the status in the tree * Very good support, the author is responding quick * The product has improved huge in the past weeks: - it has Mecanim and Legacy anim controller, Parameters * Price: only a fraction of the "Behave 2"@200, "Behaviour Design+Pack"@50+25 Cons: - only 2 images here in the store (not enough marketing:), instead of presenting more trees for different actions like patrol, follow the lead, hide from the player, simultaneous-attack, AI-defense. - videos and included examples need to present more AI actions that can be achieved with the "React" behaviour trees - React needs to include some A* pathfinding (third party to integrate with, or something included) - to have runtime dynamic modified/generated terrain NPCmoveToPoint - React needs to include the most used game actions like: LookAtCamera / LookAtPoint, PointWithHandPointerFingerAt3DPoint, GoToNPCFrontAndLookAtHisFace, GoToNPCToTalk, GiveNPCObject, FollowNPC, ChaseNPC, GuardObjectAndBlockNPCPathToObject :), ChangePlayerStatusAtParameterDistanceFromPoint :), ThrowARopeAtPoint :) - I think at least some of these actions are common on many games :)

First off, if you are considering purchasing this product and are not already familiar with behavior trees, I would recommend learning how they work and evaluating whether they will be right for your project. There are lots of good resources out there, I would recommend http://aigamedev.com/insider/tutorial/second-generation-bt/ Pros: 1. All of the source code is provided, so if you don't like the way this tool works you can change or enhance it. 2. The code itself if well written and architecturally sound, while being minimally invasive to your project. Once you understand how the plumbing works you can easily add your own decorators, for example, for your specific needs. 3. The React Debugger is very useful to watch your behavior trees execute in real time. Cons: 1. Actions cannot have parameters, so they must be very specific. For example, if you want your character to idle for 3 seconds or 5 seconds, it would be nice to set the duration right on the action node rather than having two separate IdleForThreeSeconds and IdleForFiveSeconds actions. There are ways to get around this with clever coding or use of decorators, but this is the biggest limitation in my opinion as it will inhibit you from creating a useful generic library of actions. 2. Actions that take time to complete will have "yield return NodeResult.Continue" statements which allow them to be used like unity coroutines, which is nice. However, there are several decorator and branch nodes that can cause your action to abort after that yield statement (for example, the TimeLimit decorator). This means you may end up leaving things in a bad state (like not stopping an animation). But again, with clever coding you can work around this. In summary, if you are code-savy this tool is a good starting point, but I would say it is not quite ready for prime time right out of the box. However, with a bit more work from the author (especially addressing the two points above), I would give it a 5 star rating.

Seems good but need more Example / Tutorial. Or at least an updated video... I will edit this when tutorial / video or example will be more helpful.

I wonder how this has been unnoticed for so long. it really has shorten my programming period and made my life easier. It would sell better if there were more tutorials, I think. If you are making a game, the most important thing is whether you can implement your own game logic. I`m under the impression that some other AI plugins are too beginner-friendly, defeating the whole purpose of providing a professional tool. Keep up the good work~ Cheers~~

Picked this up in a 24 hour sale. This is a simple and clean asset with a very clear focus. It is easy to integrate without a major impact on existing code and architecture. For the sale price I am pleased with this asset. The latest update represents a significant improvement to the UI which will make the tool easier to use in the future. The full asking price could be considered steep for what is on offer but as with all assets if you need it and can't/don't want to/don't have time to... write a system yourself, can afford it and it works for you then the value is there. Edit: The author has now reduced the asking price for this asset to 42.75 Euros from over 90 so the steep comment above no longer applies! Support from the author has been fast and helpful. Based on the changes made to the UI they are clearly willing to listen to users and consider their suggestions which is a huge plus for me. I have not fully exercised the product so I may encounter specific issues and snags later on but based on experience so far I am confident that the author will assist and react appropriately to constructive feedback. There are still some improvements to be made to documentation. What I would really like to see is the full lifecycle management of an entity from just spawned through several distinct behaviours (seek, hide, target, fire that kind of thing), taking hits and eventually dying accompanied by a walkthrough (text or video) explaining the workflow and thought process. This would help not only in the technical use of the product but would also help people understand how behaviour trees work, why they are helpful and how you must think to leverage them for maximum benefit.

This is a useful tool for quickly setting up behaviors, not just for enemies but for any objects. The demo was sufficient for me to get up and running and provided me with a good understanding of how things worked (I am a full time programmer and behavior trees are nothing new to me). Some points for people considering buying this: Having some background knowledge on behaviors/AI helps with a tool like this. You will still need to write some code for things like conditions and actions (though plugging your functions into this is very easy). A tool like this will not magically grant you a AAA drag and drop AI, behavior trees are just a small part of what makes an AI believable. Some notes to the developer: More examples will help folks see the real potential of this tool. Some ideas: Replace the floating eggs with mecanim characters and show how to change animation states. Show how to make a door open when an object with the correct attribute (name, ID…) comes into proximity. A getting started guide aimed at folks that have no clue where to start. I increased my rating to 5/5 with the price drop.

If you understand behavior trees, this is a plugin that doesn't require documentation. The UI is self-explanatory. The trees are easy to edit or move around. I'm not sure what the other reviewers are upset about. A few more demos and a beginners' tutorial could be nice for those that don't know how to use behavior trees, but the tool itself works well as-is.