316 lines
14 KiB
ReStructuredText
316 lines
14 KiB
ReStructuredText
:github_url: hide
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.. DO NOT EDIT THIS FILE!!!
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.. Generated automatically from Godot engine sources.
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.. Generator: https://github.com/godotengine/godot/tree/master/doc/tools/make_rst.py.
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.. XML source: https://github.com/godotengine/godot/tree/master/modules/limboai/doc_classes/LimboHSM.xml.
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.. _class_LimboHSM:
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LimboHSM
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========
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**Inherits:** :ref:`LimboState<class_LimboState>`
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Event-based Hierarchical State Machine (HSM).
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.. rst-class:: classref-introduction-group
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Description
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-----------
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Event-based Hierarchical State Machine (HSM) that manages :ref:`LimboState<class_LimboState>` instances and facilitates transitions between them. LimboHSM is a :ref:`LimboState<class_LimboState>` in itself and can also serve as a child of another LimboHSM node.
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.. rst-class:: classref-reftable-group
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Properties
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----------
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.. table::
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:widths: auto
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+---------------------------------------------+-------------------------------------------------------------+-------+
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| :ref:`LimboState<class_LimboState>` | :ref:`ANYSTATE<class_LimboHSM_property_ANYSTATE>` | |
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+---------------------------------------------+-------------------------------------------------------------+-------+
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| :ref:`LimboState<class_LimboState>` | :ref:`initial_state<class_LimboHSM_property_initial_state>` | |
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+---------------------------------------------+-------------------------------------------------------------+-------+
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| :ref:`UpdateMode<enum_LimboHSM_UpdateMode>` | :ref:`update_mode<class_LimboHSM_property_update_mode>` | ``1`` |
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+---------------------------------------------+-------------------------------------------------------------+-------+
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.. rst-class:: classref-reftable-group
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Methods
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-------
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.. table::
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:widths: auto
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+-------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| |void| | :ref:`add_transition<class_LimboHSM_method_add_transition>`\ (\ from_state\: :ref:`LimboState<class_LimboState>`, to_state\: :ref:`LimboState<class_LimboState>`, event\: ``StringName``\ ) |
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+-------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| |void| | :ref:`change_active_state<class_LimboHSM_method_change_active_state>`\ (\ state\: :ref:`LimboState<class_LimboState>`\ ) |
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+-------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| :ref:`LimboState<class_LimboState>` | :ref:`get_active_state<class_LimboHSM_method_get_active_state>`\ (\ ) |const| |
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+-------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| :ref:`LimboState<class_LimboState>` | :ref:`get_leaf_state<class_LimboHSM_method_get_leaf_state>`\ (\ ) |const| |
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+-------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| :ref:`LimboState<class_LimboState>` | :ref:`get_previous_active_state<class_LimboHSM_method_get_previous_active_state>`\ (\ ) |const| |
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+-------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| ``bool`` | :ref:`has_transition<class_LimboHSM_method_has_transition>`\ (\ from_state\: :ref:`LimboState<class_LimboState>`, event\: ``StringName``\ ) |const| |
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+-------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| |void| | :ref:`initialize<class_LimboHSM_method_initialize>`\ (\ agent\: ``Node``, parent_scope\: :ref:`Blackboard<class_Blackboard>` = null\ ) |
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+-------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| |void| | :ref:`remove_transition<class_LimboHSM_method_remove_transition>`\ (\ from_state\: :ref:`LimboState<class_LimboState>`, event\: ``StringName``\ ) |
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+-------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| |void| | :ref:`set_active<class_LimboHSM_method_set_active>`\ (\ active\: ``bool``\ ) |
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+-------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| |void| | :ref:`update<class_LimboHSM_method_update>`\ (\ delta\: ``float``\ ) |
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+-------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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.. rst-class:: classref-section-separator
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----
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.. rst-class:: classref-descriptions-group
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Signals
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-------
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.. _class_LimboHSM_signal_active_state_changed:
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.. rst-class:: classref-signal
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**active_state_changed**\ (\ current\: :ref:`LimboState<class_LimboState>`, previous\: :ref:`LimboState<class_LimboState>`\ ) :ref:`🔗<class_LimboHSM_signal_active_state_changed>`
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Emitted when the currently active substate is switched to a different substate.
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.. rst-class:: classref-section-separator
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----
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.. rst-class:: classref-descriptions-group
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Enumerations
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------------
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.. _enum_LimboHSM_UpdateMode:
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.. rst-class:: classref-enumeration
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enum **UpdateMode**: :ref:`🔗<enum_LimboHSM_UpdateMode>`
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.. _class_LimboHSM_constant_IDLE:
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.. rst-class:: classref-enumeration-constant
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:ref:`UpdateMode<enum_LimboHSM_UpdateMode>` **IDLE** = ``0``
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Update the state machine during the idle process.
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.. _class_LimboHSM_constant_PHYSICS:
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.. rst-class:: classref-enumeration-constant
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:ref:`UpdateMode<enum_LimboHSM_UpdateMode>` **PHYSICS** = ``1``
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Update the state machine during the physics process.
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.. _class_LimboHSM_constant_MANUAL:
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.. rst-class:: classref-enumeration-constant
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:ref:`UpdateMode<enum_LimboHSM_UpdateMode>` **MANUAL** = ``2``
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Manually update the state machine by calling :ref:`update<class_LimboHSM_method_update>` from a script.
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.. rst-class:: classref-section-separator
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----
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.. rst-class:: classref-descriptions-group
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Property Descriptions
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---------------------
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.. _class_LimboHSM_property_ANYSTATE:
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.. rst-class:: classref-property
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:ref:`LimboState<class_LimboState>` **ANYSTATE** :ref:`🔗<class_LimboHSM_property_ANYSTATE>`
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.. rst-class:: classref-property-setget
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- :ref:`LimboState<class_LimboState>` **anystate**\ (\ )
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Useful for defining a transition from any state.
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.. rst-class:: classref-item-separator
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----
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.. _class_LimboHSM_property_initial_state:
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.. rst-class:: classref-property
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:ref:`LimboState<class_LimboState>` **initial_state** :ref:`🔗<class_LimboHSM_property_initial_state>`
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.. rst-class:: classref-property-setget
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- |void| **set_initial_state**\ (\ value\: :ref:`LimboState<class_LimboState>`\ )
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- :ref:`LimboState<class_LimboState>` **get_initial_state**\ (\ )
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The substate that becomes active when the state machine is activated using the :ref:`set_active<class_LimboHSM_method_set_active>` method. If not explicitly set, the first child of the LimboHSM will be considered the initial state.
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.. rst-class:: classref-item-separator
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----
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.. _class_LimboHSM_property_update_mode:
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.. rst-class:: classref-property
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:ref:`UpdateMode<enum_LimboHSM_UpdateMode>` **update_mode** = ``1`` :ref:`🔗<class_LimboHSM_property_update_mode>`
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.. rst-class:: classref-property-setget
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- |void| **set_update_mode**\ (\ value\: :ref:`UpdateMode<enum_LimboHSM_UpdateMode>`\ )
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- :ref:`UpdateMode<enum_LimboHSM_UpdateMode>` **get_update_mode**\ (\ )
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Specifies when the state machine should be updated. See :ref:`UpdateMode<enum_LimboHSM_UpdateMode>`.
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.. rst-class:: classref-section-separator
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----
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.. rst-class:: classref-descriptions-group
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Method Descriptions
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-------------------
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.. _class_LimboHSM_method_add_transition:
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.. rst-class:: classref-method
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|void| **add_transition**\ (\ from_state\: :ref:`LimboState<class_LimboState>`, to_state\: :ref:`LimboState<class_LimboState>`, event\: ``StringName``\ ) :ref:`🔗<class_LimboHSM_method_add_transition>`
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Establishes a transition from one state to another when ``event`` is dispatched. Both ``from_state`` and ``to_state`` must be immediate children of this state.
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.. rst-class:: classref-item-separator
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----
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.. _class_LimboHSM_method_change_active_state:
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.. rst-class:: classref-method
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|void| **change_active_state**\ (\ state\: :ref:`LimboState<class_LimboState>`\ ) :ref:`🔗<class_LimboHSM_method_change_active_state>`
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Changes the currently active substate to ``state``. If ``state`` is already active, it will be exited and reentered.
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\ ``state`` must be a child of this **LimboHSM**.
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.. rst-class:: classref-item-separator
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----
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.. _class_LimboHSM_method_get_active_state:
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.. rst-class:: classref-method
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:ref:`LimboState<class_LimboState>` **get_active_state**\ (\ ) |const| :ref:`🔗<class_LimboHSM_method_get_active_state>`
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Returns the currently active substate.
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.. rst-class:: classref-item-separator
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----
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.. _class_LimboHSM_method_get_leaf_state:
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.. rst-class:: classref-method
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:ref:`LimboState<class_LimboState>` **get_leaf_state**\ (\ ) |const| :ref:`🔗<class_LimboHSM_method_get_leaf_state>`
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Returns the currently active leaf state within the state machine.
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.. rst-class:: classref-item-separator
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----
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.. _class_LimboHSM_method_get_previous_active_state:
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.. rst-class:: classref-method
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:ref:`LimboState<class_LimboState>` **get_previous_active_state**\ (\ ) |const| :ref:`🔗<class_LimboHSM_method_get_previous_active_state>`
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Returns the previously active substate.
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.. rst-class:: classref-item-separator
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----
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.. _class_LimboHSM_method_has_transition:
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.. rst-class:: classref-method
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``bool`` **has_transition**\ (\ from_state\: :ref:`LimboState<class_LimboState>`, event\: ``StringName``\ ) |const| :ref:`🔗<class_LimboHSM_method_has_transition>`
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Returns ``true`` if there is a transition from ``from_state`` for a given ``event``.
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.. rst-class:: classref-item-separator
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----
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.. _class_LimboHSM_method_initialize:
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.. rst-class:: classref-method
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|void| **initialize**\ (\ agent\: ``Node``, parent_scope\: :ref:`Blackboard<class_Blackboard>` = null\ ) :ref:`🔗<class_LimboHSM_method_initialize>`
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Initiates the state and calls :ref:`LimboState._setup<class_LimboState_private_method__setup>` for both itself and all substates.
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.. rst-class:: classref-item-separator
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----
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.. _class_LimboHSM_method_remove_transition:
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.. rst-class:: classref-method
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|void| **remove_transition**\ (\ from_state\: :ref:`LimboState<class_LimboState>`, event\: ``StringName``\ ) :ref:`🔗<class_LimboHSM_method_remove_transition>`
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Removes a transition from a state associated with specific ``event``.
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.. rst-class:: classref-item-separator
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----
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.. _class_LimboHSM_method_set_active:
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.. rst-class:: classref-method
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|void| **set_active**\ (\ active\: ``bool``\ ) :ref:`🔗<class_LimboHSM_method_set_active>`
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When set to ``true``, switches the state to :ref:`initial_state<class_LimboHSM_property_initial_state>` and activates state processing according to :ref:`update_mode<class_LimboHSM_property_update_mode>`.
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.. rst-class:: classref-item-separator
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----
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.. _class_LimboHSM_method_update:
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.. rst-class:: classref-method
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|void| **update**\ (\ delta\: ``float``\ ) :ref:`🔗<class_LimboHSM_method_update>`
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Calls :ref:`LimboState._update<class_LimboState_private_method__update>` on itself and the active substate, with the call cascading down to the leaf state. This method is automatically triggered if :ref:`update_mode<class_LimboHSM_property_update_mode>` is not set to :ref:`MANUAL<class_LimboHSM_constant_MANUAL>`.
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.. |virtual| replace:: :abbr:`virtual (This method should typically be overridden by the user to have any effect.)`
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.. |const| replace:: :abbr:`const (This method has no side effects. It doesn't modify any of the instance's member variables.)`
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.. |vararg| replace:: :abbr:`vararg (This method accepts any number of arguments after the ones described here.)`
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.. |constructor| replace:: :abbr:`constructor (This method is used to construct a type.)`
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.. |static| replace:: :abbr:`static (This method doesn't need an instance to be called, so it can be called directly using the class name.)`
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.. |operator| replace:: :abbr:`operator (This method describes a valid operator to use with this type as left-hand operand.)`
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.. |bitfield| replace:: :abbr:`BitField (This value is an integer composed as a bitmask of the following flags.)`
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.. |void| replace:: :abbr:`void (No return value.)`
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