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A behaviour tree is sort of a hierarchical state machine but one in which the states are not explicit. They fall out of how you arrange the nodes in the tree.
by meheleventyone 9y ago
A behaviour tree is sort of a hierarchical state machine but one in which the states are not explicit. They fall out of how you arrange the nodes in the tree.
Actual hierarchical state machines are pretty common for driving a variety of things. Probably most commonly animation but also driving game state.
- stcredzero 9y agoActual hierarchical state machines are pretty common for driving a variety of things. My understanding of hierarchical state machines, is that they're equivalent to Context Free Languages in terms of computational power.