A simple behavior tree implementation.
Behavior trees are composed of Nodes. There are 3 primary kinds of nodes:
- Leaf Nodes: The 'business logic'. These are the terminal nodes in the tree and directly modify game state.
- Composite Nodes: They contain multiple sub-nodes and have varying logic in how to decide which child node to select.
- Decorator Nodes: They have a single child node and either modifies the context before calling child nodes, or modifies the result of the child node before returning.
The -D btree compilation flag can be used to enable various logging.