godot-docs/classes/class_animationtree.rst

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.. _class_AnimationTree:

AnimationTree
=============

**Inherits:** :ref:`AnimationMixer<class_AnimationMixer>` **<** :ref:`Node<class_Node>` **<** :ref:`Object<class_Object>`

A node used for advanced animation transitions in an :ref:`AnimationPlayer<class_AnimationPlayer>`.

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

A node used for advanced animation transitions in an :ref:`AnimationPlayer<class_AnimationPlayer>`.

\ **Note:** When linked with an :ref:`AnimationPlayer<class_AnimationPlayer>`, several properties and methods of the corresponding :ref:`AnimationPlayer<class_AnimationPlayer>` will not function as expected. Playback and transitions should be handled using only the **AnimationTree** and its constituent :ref:`AnimationNode<class_AnimationNode>`\ (s). The :ref:`AnimationPlayer<class_AnimationPlayer>` node should be used solely for adding, deleting, and editing animations.

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Tutorials
---------

- :doc:`Using AnimationTree <../tutorials/animation/animation_tree>`

- `Third Person Shooter Demo <https://godotengine.org/asset-library/asset/678>`__

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Properties
----------

.. table::
   :widths: auto

   +---------------------------------------------------+------------------------------------------------------------------------------------------------+-----------------------------------------------------------------------------------------+
   | :ref:`NodePath<class_NodePath>`                   | :ref:`advance_expression_base_node<class_AnimationTree_property_advance_expression_base_node>` | ``NodePath(".")``                                                                       |
   +---------------------------------------------------+------------------------------------------------------------------------------------------------+-----------------------------------------------------------------------------------------+
   | :ref:`NodePath<class_NodePath>`                   | :ref:`anim_player<class_AnimationTree_property_anim_player>`                                   | ``NodePath("")``                                                                        |
   +---------------------------------------------------+------------------------------------------------------------------------------------------------+-----------------------------------------------------------------------------------------+
   | :ref:`bool<class_bool>`                           | deterministic                                                                                  | ``true`` (overrides :ref:`AnimationMixer<class_AnimationMixer_property_deterministic>`) |
   +---------------------------------------------------+------------------------------------------------------------------------------------------------+-----------------------------------------------------------------------------------------+
   | :ref:`AnimationRootNode<class_AnimationRootNode>` | :ref:`tree_root<class_AnimationTree_property_tree_root>`                                       |                                                                                         |
   +---------------------------------------------------+------------------------------------------------------------------------------------------------+-----------------------------------------------------------------------------------------+

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Methods
-------

.. table::
   :widths: auto

   +------------------------------------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`AnimationProcessCallback<enum_AnimationTree_AnimationProcessCallback>` | :ref:`get_process_callback<class_AnimationTree_method_get_process_callback>` **(** **)** |const|                                                                           |
   +------------------------------------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | void                                                                         | :ref:`set_process_callback<class_AnimationTree_method_set_process_callback>` **(** :ref:`AnimationProcessCallback<enum_AnimationTree_AnimationProcessCallback>` mode **)** |
   +------------------------------------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+

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----

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Signals
-------

.. _class_AnimationTree_signal_animation_player_changed:

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**animation_player_changed** **(** **)**

Emitted when the :ref:`anim_player<class_AnimationTree_property_anim_player>` is changed.

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----

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Enumerations
------------

.. _enum_AnimationTree_AnimationProcessCallback:

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enum **AnimationProcessCallback**:

.. _class_AnimationTree_constant_ANIMATION_PROCESS_PHYSICS:

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:ref:`AnimationProcessCallback<enum_AnimationTree_AnimationProcessCallback>` **ANIMATION_PROCESS_PHYSICS** = ``0``

For backward compatibility. See :ref:`AnimationMixer.ANIMATION_CALLBACK_MODE_PROCESS_PHYSICS<class_AnimationMixer_constant_ANIMATION_CALLBACK_MODE_PROCESS_PHYSICS>`.

.. _class_AnimationTree_constant_ANIMATION_PROCESS_IDLE:

.. rst-class:: classref-enumeration-constant

:ref:`AnimationProcessCallback<enum_AnimationTree_AnimationProcessCallback>` **ANIMATION_PROCESS_IDLE** = ``1``

For backward compatibility. See :ref:`AnimationMixer.ANIMATION_CALLBACK_MODE_PROCESS_IDLE<class_AnimationMixer_constant_ANIMATION_CALLBACK_MODE_PROCESS_IDLE>`.

.. _class_AnimationTree_constant_ANIMATION_PROCESS_MANUAL:

.. rst-class:: classref-enumeration-constant

:ref:`AnimationProcessCallback<enum_AnimationTree_AnimationProcessCallback>` **ANIMATION_PROCESS_MANUAL** = ``2``

For backward compatibility. See :ref:`AnimationMixer.ANIMATION_CALLBACK_MODE_PROCESS_MANUAL<class_AnimationMixer_constant_ANIMATION_CALLBACK_MODE_PROCESS_MANUAL>`.

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----

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

.. _class_AnimationTree_property_advance_expression_base_node:

.. rst-class:: classref-property

:ref:`NodePath<class_NodePath>` **advance_expression_base_node** = ``NodePath(".")``

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- void **set_advance_expression_base_node** **(** :ref:`NodePath<class_NodePath>` value **)**
- :ref:`NodePath<class_NodePath>` **get_advance_expression_base_node** **(** **)**

The path to the :ref:`Node<class_Node>` used to evaluate the :ref:`AnimationNode<class_AnimationNode>` :ref:`Expression<class_Expression>` if one is not explicitly specified internally.

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----

.. _class_AnimationTree_property_anim_player:

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:ref:`NodePath<class_NodePath>` **anim_player** = ``NodePath("")``

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- void **set_animation_player** **(** :ref:`NodePath<class_NodePath>` value **)**
- :ref:`NodePath<class_NodePath>` **get_animation_player** **(** **)**

The path to the :ref:`AnimationPlayer<class_AnimationPlayer>` used for animating.

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----

.. _class_AnimationTree_property_tree_root:

.. rst-class:: classref-property

:ref:`AnimationRootNode<class_AnimationRootNode>` **tree_root**

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

- void **set_tree_root** **(** :ref:`AnimationRootNode<class_AnimationRootNode>` value **)**
- :ref:`AnimationRootNode<class_AnimationRootNode>` **get_tree_root** **(** **)**

The root animation node of this **AnimationTree**. See :ref:`AnimationRootNode<class_AnimationRootNode>`.

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----

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

.. _class_AnimationTree_method_get_process_callback:

.. rst-class:: classref-method

:ref:`AnimationProcessCallback<enum_AnimationTree_AnimationProcessCallback>` **get_process_callback** **(** **)** |const|

For backward compatibility. See :ref:`AnimationCallbackModeProcess<enum_AnimationMixer_AnimationCallbackModeProcess>`.

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----

.. _class_AnimationTree_method_set_process_callback:

.. rst-class:: classref-method

void **set_process_callback** **(** :ref:`AnimationProcessCallback<enum_AnimationTree_AnimationProcessCallback>` mode **)**

For backward compatibility. See :ref:`AnimationCallbackModeProcess<enum_AnimationMixer_AnimationCallbackModeProcess>`.

.. |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.)`