How to exchange data with outside of the Behavior Tree？

[Senkuu-ai]

[IversonHuang]

It can be used Blackboard::set() to set data to your tree, and Blackboard::get() to get data inside tree. But this might only get the data of the main tree, the data of subtree cannot be reached, useless you set __shared_blackboard for your subtree or remapping the data of subtree to maintree.