C++ Artificial Intelligence Kit is an open source modern C++ library containing many structures and algorithms needed for the implementation of AI in games and other types of projects.

Included in the library:

• FSM (Finite State Machine)
• HFSM (Hierarchical Finite State Machine)
• NFSM (Nested Finite State Machine, also known as Stacked FSM)
• Behavior Tree
• GOAP (Goal Oriented Action Planning)

• https://barrgroup.com/Embedded-Systems/How-To/Introduction-Hierarchical-State-Machines
• http://www.drdobbs.com/hierarchical-state-machine-design-in-c/184402040
• http://www.gameaipro.com/GameAIPro/GameAIPro_Chapter06_The_Behavior_Tree_Starter_Kit.pdf
• http://riverliu.net/ai/