godot-docs/classes/class_boneattachment3d.rst

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.. _class_BoneAttachment3D:

BoneAttachment3D
================

**Inherits:** :ref:`Node3D<class_Node3D>` **<** :ref:`Node<class_Node>` **<** :ref:`Object<class_Object>`

A node that will attach to a bone.

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

This node will allow you to select a bone for this node to attach to. The BoneAttachment3D node can copy the transform of the select bone, or can override the transform of the selected bone.

The BoneAttachment3D node must either be a child of a :ref:`Skeleton3D<class_Skeleton3D>` node or be given an external :ref:`Skeleton3D<class_Skeleton3D>` to use in order to function properly.

Properties
----------

+-----------------------------+-------------------------------------------------------------+--------+
| :ref:`int<class_int>`       | :ref:`bone_idx<class_BoneAttachment3D_property_bone_idx>`   | ``-1`` |
+-----------------------------+-------------------------------------------------------------+--------+
| :ref:`String<class_String>` | :ref:`bone_name<class_BoneAttachment3D_property_bone_name>` | ``""`` |
+-----------------------------+-------------------------------------------------------------+--------+

Methods
-------

+---------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`NodePath<class_NodePath>` | :ref:`get_external_skeleton<class_BoneAttachment3D_method_get_external_skeleton>` **(** **)** |const|                                               |
+---------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`int<class_int>`           | :ref:`get_override_mode<class_BoneAttachment3D_method_get_override_mode>` **(** **)** |const|                                                       |
+---------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`bool<class_bool>`         | :ref:`get_override_pose<class_BoneAttachment3D_method_get_override_pose>` **(** **)** |const|                                                       |
+---------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`bool<class_bool>`         | :ref:`get_use_external_skeleton<class_BoneAttachment3D_method_get_use_external_skeleton>` **(** **)** |const|                                       |
+---------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------+
| void                            | :ref:`on_bone_pose_update<class_BoneAttachment3D_method_on_bone_pose_update>` **(** :ref:`int<class_int>` bone_index **)**                          |
+---------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------+
| void                            | :ref:`set_external_skeleton<class_BoneAttachment3D_method_set_external_skeleton>` **(** :ref:`NodePath<class_NodePath>` external_skeleton **)**     |
+---------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------+
| void                            | :ref:`set_override_mode<class_BoneAttachment3D_method_set_override_mode>` **(** :ref:`int<class_int>` override_mode **)**                           |
+---------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------+
| void                            | :ref:`set_override_pose<class_BoneAttachment3D_method_set_override_pose>` **(** :ref:`bool<class_bool>` override_pose **)**                         |
+---------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------+
| void                            | :ref:`set_use_external_skeleton<class_BoneAttachment3D_method_set_use_external_skeleton>` **(** :ref:`bool<class_bool>` use_external_skeleton **)** |
+---------------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------+

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

.. _class_BoneAttachment3D_property_bone_idx:

- :ref:`int<class_int>` **bone_idx**

+-----------+---------------------+
| *Default* | ``-1``              |
+-----------+---------------------+
| *Setter*  | set_bone_idx(value) |
+-----------+---------------------+
| *Getter*  | get_bone_idx()      |
+-----------+---------------------+

The index of the attached bone.

----

.. _class_BoneAttachment3D_property_bone_name:

- :ref:`String<class_String>` **bone_name**

+-----------+----------------------+
| *Default* | ``""``               |
+-----------+----------------------+
| *Setter*  | set_bone_name(value) |
+-----------+----------------------+
| *Getter*  | get_bone_name()      |
+-----------+----------------------+

The name of the attached bone.

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

.. _class_BoneAttachment3D_method_get_external_skeleton:

- :ref:`NodePath<class_NodePath>` **get_external_skeleton** **(** **)** |const|

Returns the :ref:`NodePath<class_NodePath>` to the external :ref:`Skeleton3D<class_Skeleton3D>` node, if one has been set.

----

.. _class_BoneAttachment3D_method_get_override_mode:

- :ref:`int<class_int>` **get_override_mode** **(** **)** |const|

Returns the override mode for the BoneAttachment3D node.

----

.. _class_BoneAttachment3D_method_get_override_pose:

- :ref:`bool<class_bool>` **get_override_pose** **(** **)** |const|

Returns whether the BoneAttachment3D node is overriding the bone pose of the bone it's attached to.

----

.. _class_BoneAttachment3D_method_get_use_external_skeleton:

- :ref:`bool<class_bool>` **get_use_external_skeleton** **(** **)** |const|

Returns whether the BoneAttachment3D node is using an external :ref:`Skeleton3D<class_Skeleton3D>` rather than attempting to use its parent node as the :ref:`Skeleton3D<class_Skeleton3D>`.

----

.. _class_BoneAttachment3D_method_on_bone_pose_update:

- void **on_bone_pose_update** **(** :ref:`int<class_int>` bone_index **)**

A function that is called automatically when the :ref:`Skeleton3D<class_Skeleton3D>` the BoneAttachment3D node is using has a bone that has changed its pose. This function is where the BoneAttachment3D node updates its position so it is correctly bound when it is *not* set to override the bone pose.

----

.. _class_BoneAttachment3D_method_set_external_skeleton:

- void **set_external_skeleton** **(** :ref:`NodePath<class_NodePath>` external_skeleton **)**

Sets the :ref:`NodePath<class_NodePath>` to the external skeleton that the BoneAttachment3D node should use. The external :ref:`Skeleton3D<class_Skeleton3D>` node is only used when ``use_external_skeleton`` is set to ``true``.

----

.. _class_BoneAttachment3D_method_set_override_mode:

- void **set_override_mode** **(** :ref:`int<class_int>` override_mode **)**

Sets the override mode for the BoneAttachment3D node. The override mode defines which of the bone poses the BoneAttachment3D node will override.

----

.. _class_BoneAttachment3D_method_set_override_pose:

- void **set_override_pose** **(** :ref:`bool<class_bool>` override_pose **)**

Sets whether the BoneAttachment3D node will override the bone pose of the bone it is attached to. When set to ``true``, the BoneAttachment3D node can change the pose of the bone.

----

.. _class_BoneAttachment3D_method_set_use_external_skeleton:

- void **set_use_external_skeleton** **(** :ref:`bool<class_bool>` use_external_skeleton **)**

Sets whether the BoneAttachment3D node will use an extenral :ref:`Skeleton3D<class_Skeleton3D>` node rather than attenpting to use its parent node as the :ref:`Skeleton3D<class_Skeleton3D>`. When set to ``true``, the BoneAttachment3D node will use the external :ref:`Skeleton3D<class_Skeleton3D>` node set in ``set_external_skeleton``.

.. |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.)`