Behavior Tree Implementations

Question

I am looking for behavior tree implementations in any language, I would like to learn more about how they are implemented and used so can roll my own but I could only find one Owyl, unfortunately, it does not contain examples of how it is used.

Any one know any other open source ones that I can browse through the code see some examples of how they are used etc?

EDIT: Behavior tree is the name of the data structure.

Solution 1

Here's a few I've found:

• C# - https://github.com/netgnome/BehaviorLibrary (free)
• C++ - http://aigamedev.com/insider/tutorial/second-generation-bt/ ($10)
• C# - http://code.google.com/p/treesharp/ (free)
• C# - https://github.com/ArtemKoval/Simple-Behavior-Tree-Library
• Java - http://code.google.com/p/daggame/ DAG AI Code
• C# - http://www.sgtconker.com/affiliated-projects/brains/

This Q on GameDev could be helpful, too.

Solution 2

Take a look at https://skill.codeplex.com/. this is a BehaviorTree code generator for unity. you can download source code and see if it is useful.

Solution 3

I did my own behavior tree implementation in C++ and used some modified code from the Protothreads Library. Coroutines in C is also a good read. Using this one can implement a coroutine system that allows one to run multiple behaviors concurrently without the use of multiple threads. Basically each tree node would have its own coroutine.

Solution 4

I don't know that I understand you right but I think to implement a tree you'r better choice is to use an formal language such as F# or Haskell. With Haskell you can use flexible and fast tree-structures and with F# you have an multiparadigm Language to parse and handle tree structures in oo Code.

I hope that helps you.

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