History
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The predecessor of has been created in 2013 in C# for a 3D platformer game in Unity.
UML statechart has been considered, and ultimately rejected.
Instead, the decision has been made to create yet another state machine framework based on the actual needs of the project.
The C# framework supported:
2 types of regions: Composite
and Orthogonal
3 kinds of transitions: Restart()
, Resume()
and Schedule()
It has been used for most of the game objects, including:
Animated player character (~50 states total)
Doors
Game menus
etc.
After the release of VS 2013 (which debuted with C++ variadic templates), the first version of HFSM has been developed with the idea to exploit variadic teplates to generate the entire FSM structure at compile time.
1 has been for the first time at the ’s .
At the end of September 2018, evolved into . used a variation of the Robin Hood hash table to map stateId
(implemented using ) and state info. Starting with , the stateId
became a cumulative index of the state, which is known for every state at compile time.