limboai/doc/source/classes/class_btstate.rst

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.. _class_BTState:

BTState
=======

**Inherits:** :ref:`LimboState<class_LimboState>`

A state node for :ref:`LimboHSM<class_LimboHSM>` that hosts a :ref:`BehaviorTree<class_BehaviorTree>`.

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Description
-----------

BTState is a :ref:`LimboState<class_LimboState>` node that manages a :ref:`BehaviorTree<class_BehaviorTree>` to provide behavior logic for the state. It instantiates and runs the :ref:`BehaviorTree<class_BehaviorTree>` resource, dispatching a state machine event upon ``SUCCESS`` or ``FAILURE``. Event names are customizable through :ref:`success_event<class_BTState_property_success_event>` and :ref:`failure_event<class_BTState_property_failure_event>`. For further details on state machine events, see :ref:`LimboState.dispatch<class_LimboState_method_dispatch>`.

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Properties
----------

.. table::
   :widths: auto

   +-----------------------------------------+------------------------------------------------------------+----------------+
   | :ref:`BehaviorTree<class_BehaviorTree>` | :ref:`behavior_tree<class_BTState_property_behavior_tree>` |                |
   +-----------------------------------------+------------------------------------------------------------+----------------+
   | ``StringName``                          | :ref:`failure_event<class_BTState_property_failure_event>` | ``&"failure"`` |
   +-----------------------------------------+------------------------------------------------------------+----------------+
   | ``StringName``                          | :ref:`success_event<class_BTState_property_success_event>` | ``&"success"`` |
   +-----------------------------------------+------------------------------------------------------------+----------------+

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Methods
-------

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   :widths: auto

   +-------------------------------------+----------------------------------------------------------------------------+
   | :ref:`BTInstance<class_BTInstance>` | :ref:`get_bt_instance<class_BTState_method_get_bt_instance>`\ (\ ) |const| |
   +-------------------------------------+----------------------------------------------------------------------------+

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----

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Property Descriptions
---------------------

.. _class_BTState_property_behavior_tree:

.. rst-class:: classref-property

:ref:`BehaviorTree<class_BehaviorTree>` **behavior_tree** :ref:`🔗<class_BTState_property_behavior_tree>`

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- |void| **set_behavior_tree**\ (\ value\: :ref:`BehaviorTree<class_BehaviorTree>`\ )
- :ref:`BehaviorTree<class_BehaviorTree>` **get_behavior_tree**\ (\ )

A :ref:`BehaviorTree<class_BehaviorTree>` resource that defines state behavior.

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----

.. _class_BTState_property_failure_event:

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``StringName`` **failure_event** = ``&"failure"`` :ref:`🔗<class_BTState_property_failure_event>`

.. rst-class:: classref-property-setget

- |void| **set_failure_event**\ (\ value\: ``StringName``\ )
- ``StringName`` **get_failure_event**\ (\ )

HSM event that will be dispatched when the behavior tree results in ``FAILURE``. See :ref:`LimboState.dispatch<class_LimboState_method_dispatch>`.

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----

.. _class_BTState_property_success_event:

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``StringName`` **success_event** = ``&"success"`` :ref:`🔗<class_BTState_property_success_event>`

.. rst-class:: classref-property-setget

- |void| **set_success_event**\ (\ value\: ``StringName``\ )
- ``StringName`` **get_success_event**\ (\ )

HSM event that will be dispatched when the behavior tree results in ``SUCCESS``. See :ref:`LimboState.dispatch<class_LimboState_method_dispatch>`.

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Method Descriptions
-------------------

.. _class_BTState_method_get_bt_instance:

.. rst-class:: classref-method

:ref:`BTInstance<class_BTInstance>` **get_bt_instance**\ (\ ) |const| :ref:`🔗<class_BTState_method_get_bt_instance>`

Returns the behavior tree instance.

.. |virtual| replace:: :abbr:`virtual (This method should typically be overridden by the user to have any effect.)`
.. |const| replace:: :abbr:`const (This method has no side effects. It doesn't modify any of the instance's member variables.)`
.. |vararg| replace:: :abbr:`vararg (This method accepts any number of arguments after the ones described here.)`
.. |constructor| replace:: :abbr:`constructor (This method is used to construct a type.)`
.. |static| replace:: :abbr:`static (This method doesn't need an instance to be called, so it can be called directly using the class name.)`
.. |operator| replace:: :abbr:`operator (This method describes a valid operator to use with this type as left-hand operand.)`
.. |bitfield| replace:: :abbr:`BitField (This value is an integer composed as a bitmask of the following flags.)`
.. |void| replace:: :abbr:`void (No return value.)`