godot-docs/classes/class_physicalbone3d.rst

:github_url: hide

.. meta::
	:keywords: ragdoll

.. DO NOT EDIT THIS FILE!!!
.. Generated automatically from Godot engine sources.
.. Generator: https://github.com/godotengine/godot/tree/master/doc/tools/make_rst.py.
.. XML source: https://github.com/godotengine/godot/tree/master/doc/classes/PhysicalBone3D.xml.

.. _class_PhysicalBone3D:

PhysicalBone3D
==============

**Inherits:** :ref:`PhysicsBody3D<class_PhysicsBody3D>` **<** :ref:`CollisionObject3D<class_CollisionObject3D>` **<** :ref:`Node3D<class_Node3D>` **<** :ref:`Node<class_Node>` **<** :ref:`Object<class_Object>`

A physics body used to make bones in a :ref:`Skeleton3D<class_Skeleton3D>` react to physics.

.. rst-class:: classref-introduction-group

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

The **PhysicalBone3D** node is a physics body that can be used to make bones in a :ref:`Skeleton3D<class_Skeleton3D>` react to physics.

\ **Note:** In order to detect physical bones with raycasts, the :ref:`SkeletonModifier3D.active<class_SkeletonModifier3D_property_active>` property of the parent :ref:`PhysicalBoneSimulator3D<class_PhysicalBoneSimulator3D>` must be ``true`` and the :ref:`Skeleton3D<class_Skeleton3D>`'s bone must be assigned to **PhysicalBone3D** correctly; it means that :ref:`get_bone_id()<class_PhysicalBone3D_method_get_bone_id>` should return a valid id (``>= 0``).

.. rst-class:: classref-introduction-group

Tutorials
---------

- :doc:`Ragdoll System <../tutorials/physics/ragdoll_system>`

.. rst-class:: classref-reftable-group

Properties
----------

.. table::
   :widths: auto

   +-------------------------------------------------+---------------------------------------------------------------------------+-----------------------------------------------------+
   | :ref:`float<class_float>`                       | :ref:`angular_damp<class_PhysicalBone3D_property_angular_damp>`           | ``0.0``                                             |
   +-------------------------------------------------+---------------------------------------------------------------------------+-----------------------------------------------------+
   | :ref:`DampMode<enum_PhysicalBone3D_DampMode>`   | :ref:`angular_damp_mode<class_PhysicalBone3D_property_angular_damp_mode>` | ``0``                                               |
   +-------------------------------------------------+---------------------------------------------------------------------------+-----------------------------------------------------+
   | :ref:`Vector3<class_Vector3>`                   | :ref:`angular_velocity<class_PhysicalBone3D_property_angular_velocity>`   | ``Vector3(0, 0, 0)``                                |
   +-------------------------------------------------+---------------------------------------------------------------------------+-----------------------------------------------------+
   | :ref:`Transform3D<class_Transform3D>`           | :ref:`body_offset<class_PhysicalBone3D_property_body_offset>`             | ``Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0)`` |
   +-------------------------------------------------+---------------------------------------------------------------------------+-----------------------------------------------------+
   | :ref:`float<class_float>`                       | :ref:`bounce<class_PhysicalBone3D_property_bounce>`                       | ``0.0``                                             |
   +-------------------------------------------------+---------------------------------------------------------------------------+-----------------------------------------------------+
   | :ref:`bool<class_bool>`                         | :ref:`can_sleep<class_PhysicalBone3D_property_can_sleep>`                 | ``true``                                            |
   +-------------------------------------------------+---------------------------------------------------------------------------+-----------------------------------------------------+
   | :ref:`bool<class_bool>`                         | :ref:`custom_integrator<class_PhysicalBone3D_property_custom_integrator>` | ``false``                                           |
   +-------------------------------------------------+---------------------------------------------------------------------------+-----------------------------------------------------+
   | :ref:`float<class_float>`                       | :ref:`friction<class_PhysicalBone3D_property_friction>`                   | ``1.0``                                             |
   +-------------------------------------------------+---------------------------------------------------------------------------+-----------------------------------------------------+
   | :ref:`float<class_float>`                       | :ref:`gravity_scale<class_PhysicalBone3D_property_gravity_scale>`         | ``1.0``                                             |
   +-------------------------------------------------+---------------------------------------------------------------------------+-----------------------------------------------------+
   | :ref:`Transform3D<class_Transform3D>`           | :ref:`joint_offset<class_PhysicalBone3D_property_joint_offset>`           | ``Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0)`` |
   +-------------------------------------------------+---------------------------------------------------------------------------+-----------------------------------------------------+
   | :ref:`Vector3<class_Vector3>`                   | :ref:`joint_rotation<class_PhysicalBone3D_property_joint_rotation>`       | ``Vector3(0, 0, 0)``                                |
   +-------------------------------------------------+---------------------------------------------------------------------------+-----------------------------------------------------+
   | :ref:`JointType<enum_PhysicalBone3D_JointType>` | :ref:`joint_type<class_PhysicalBone3D_property_joint_type>`               | ``0``                                               |
   +-------------------------------------------------+---------------------------------------------------------------------------+-----------------------------------------------------+
   | :ref:`float<class_float>`                       | :ref:`linear_damp<class_PhysicalBone3D_property_linear_damp>`             | ``0.0``                                             |
   +-------------------------------------------------+---------------------------------------------------------------------------+-----------------------------------------------------+
   | :ref:`DampMode<enum_PhysicalBone3D_DampMode>`   | :ref:`linear_damp_mode<class_PhysicalBone3D_property_linear_damp_mode>`   | ``0``                                               |
   +-------------------------------------------------+---------------------------------------------------------------------------+-----------------------------------------------------+
   | :ref:`Vector3<class_Vector3>`                   | :ref:`linear_velocity<class_PhysicalBone3D_property_linear_velocity>`     | ``Vector3(0, 0, 0)``                                |
   +-------------------------------------------------+---------------------------------------------------------------------------+-----------------------------------------------------+
   | :ref:`float<class_float>`                       | :ref:`mass<class_PhysicalBone3D_property_mass>`                           | ``1.0``                                             |
   +-------------------------------------------------+---------------------------------------------------------------------------+-----------------------------------------------------+

.. rst-class:: classref-reftable-group

Methods
-------

.. table::
   :widths: auto

   +-------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | |void|                  | :ref:`_integrate_forces<class_PhysicalBone3D_private_method__integrate_forces>`\ (\ state\: :ref:`PhysicsDirectBodyState3D<class_PhysicsDirectBodyState3D>`\ ) |virtual|    |
   +-------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | |void|                  | :ref:`apply_central_impulse<class_PhysicalBone3D_method_apply_central_impulse>`\ (\ impulse\: :ref:`Vector3<class_Vector3>`\ )                                              |
   +-------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | |void|                  | :ref:`apply_impulse<class_PhysicalBone3D_method_apply_impulse>`\ (\ impulse\: :ref:`Vector3<class_Vector3>`, position\: :ref:`Vector3<class_Vector3>` = Vector3(0, 0, 0)\ ) |
   +-------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`int<class_int>`   | :ref:`get_bone_id<class_PhysicalBone3D_method_get_bone_id>`\ (\ ) |const|                                                                                                   |
   +-------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`bool<class_bool>` | :ref:`get_simulate_physics<class_PhysicalBone3D_method_get_simulate_physics>`\ (\ )                                                                                         |
   +-------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`bool<class_bool>` | :ref:`is_simulating_physics<class_PhysicalBone3D_method_is_simulating_physics>`\ (\ )                                                                                       |
   +-------------------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+

.. rst-class:: classref-section-separator

----

.. rst-class:: classref-descriptions-group

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

.. _enum_PhysicalBone3D_DampMode:

.. rst-class:: classref-enumeration

enum **DampMode**: :ref:`🔗<enum_PhysicalBone3D_DampMode>`

.. _class_PhysicalBone3D_constant_DAMP_MODE_COMBINE:

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

:ref:`DampMode<enum_PhysicalBone3D_DampMode>` **DAMP_MODE_COMBINE** = ``0``

In this mode, the body's damping value is added to any value set in areas or the default value.

.. _class_PhysicalBone3D_constant_DAMP_MODE_REPLACE:

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

:ref:`DampMode<enum_PhysicalBone3D_DampMode>` **DAMP_MODE_REPLACE** = ``1``

In this mode, the body's damping value replaces any value set in areas or the default value.

.. rst-class:: classref-item-separator

----

.. _enum_PhysicalBone3D_JointType:

.. rst-class:: classref-enumeration

enum **JointType**: :ref:`🔗<enum_PhysicalBone3D_JointType>`

.. _class_PhysicalBone3D_constant_JOINT_TYPE_NONE:

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

:ref:`JointType<enum_PhysicalBone3D_JointType>` **JOINT_TYPE_NONE** = ``0``

No joint is applied to the PhysicsBone3D.

.. _class_PhysicalBone3D_constant_JOINT_TYPE_PIN:

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

:ref:`JointType<enum_PhysicalBone3D_JointType>` **JOINT_TYPE_PIN** = ``1``

A pin joint is applied to the PhysicsBone3D.

.. _class_PhysicalBone3D_constant_JOINT_TYPE_CONE:

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

:ref:`JointType<enum_PhysicalBone3D_JointType>` **JOINT_TYPE_CONE** = ``2``

A cone joint is applied to the PhysicsBone3D.

.. _class_PhysicalBone3D_constant_JOINT_TYPE_HINGE:

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

:ref:`JointType<enum_PhysicalBone3D_JointType>` **JOINT_TYPE_HINGE** = ``3``

A hinge joint is applied to the PhysicsBone3D.

.. _class_PhysicalBone3D_constant_JOINT_TYPE_SLIDER:

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

:ref:`JointType<enum_PhysicalBone3D_JointType>` **JOINT_TYPE_SLIDER** = ``4``

A slider joint is applied to the PhysicsBone3D.

.. _class_PhysicalBone3D_constant_JOINT_TYPE_6DOF:

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

:ref:`JointType<enum_PhysicalBone3D_JointType>` **JOINT_TYPE_6DOF** = ``5``

A 6 degrees of freedom joint is applied to the PhysicsBone3D.

.. rst-class:: classref-section-separator

----

.. rst-class:: classref-descriptions-group

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

.. _class_PhysicalBone3D_property_angular_damp:

.. rst-class:: classref-property

:ref:`float<class_float>` **angular_damp** = ``0.0`` :ref:`🔗<class_PhysicalBone3D_property_angular_damp>`

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

- |void| **set_angular_damp**\ (\ value\: :ref:`float<class_float>`\ )
- :ref:`float<class_float>` **get_angular_damp**\ (\ )

Damps the body's rotation. By default, the body will use the :ref:`ProjectSettings.physics/3d/default_angular_damp<class_ProjectSettings_property_physics/3d/default_angular_damp>` project setting or any value override set by an :ref:`Area3D<class_Area3D>` the body is in. Depending on :ref:`angular_damp_mode<class_PhysicalBone3D_property_angular_damp_mode>`, you can set :ref:`angular_damp<class_PhysicalBone3D_property_angular_damp>` to be added to or to replace the body's damping value.

See :ref:`ProjectSettings.physics/3d/default_angular_damp<class_ProjectSettings_property_physics/3d/default_angular_damp>` for more details about damping.

.. rst-class:: classref-item-separator

----

.. _class_PhysicalBone3D_property_angular_damp_mode:

.. rst-class:: classref-property

:ref:`DampMode<enum_PhysicalBone3D_DampMode>` **angular_damp_mode** = ``0`` :ref:`🔗<class_PhysicalBone3D_property_angular_damp_mode>`

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

- |void| **set_angular_damp_mode**\ (\ value\: :ref:`DampMode<enum_PhysicalBone3D_DampMode>`\ )
- :ref:`DampMode<enum_PhysicalBone3D_DampMode>` **get_angular_damp_mode**\ (\ )

Defines how :ref:`angular_damp<class_PhysicalBone3D_property_angular_damp>` is applied.

.. rst-class:: classref-item-separator

----

.. _class_PhysicalBone3D_property_angular_velocity:

.. rst-class:: classref-property

:ref:`Vector3<class_Vector3>` **angular_velocity** = ``Vector3(0, 0, 0)`` :ref:`🔗<class_PhysicalBone3D_property_angular_velocity>`

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

- |void| **set_angular_velocity**\ (\ value\: :ref:`Vector3<class_Vector3>`\ )
- :ref:`Vector3<class_Vector3>` **get_angular_velocity**\ (\ )

The PhysicalBone3D's rotational velocity in *radians* per second.

.. rst-class:: classref-item-separator

----

.. _class_PhysicalBone3D_property_body_offset:

.. rst-class:: classref-property

:ref:`Transform3D<class_Transform3D>` **body_offset** = ``Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0)`` :ref:`🔗<class_PhysicalBone3D_property_body_offset>`

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

- |void| **set_body_offset**\ (\ value\: :ref:`Transform3D<class_Transform3D>`\ )
- :ref:`Transform3D<class_Transform3D>` **get_body_offset**\ (\ )

Sets the body's transform.

.. rst-class:: classref-item-separator

----

.. _class_PhysicalBone3D_property_bounce:

.. rst-class:: classref-property

:ref:`float<class_float>` **bounce** = ``0.0`` :ref:`🔗<class_PhysicalBone3D_property_bounce>`

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

- |void| **set_bounce**\ (\ value\: :ref:`float<class_float>`\ )
- :ref:`float<class_float>` **get_bounce**\ (\ )

The body's bounciness. Values range from ``0`` (no bounce) to ``1`` (full bounciness).

\ **Note:** Even with :ref:`bounce<class_PhysicalBone3D_property_bounce>` set to ``1.0``, some energy will be lost over time due to linear and angular damping. To have a **PhysicalBone3D** that preserves all its energy over time, set :ref:`bounce<class_PhysicalBone3D_property_bounce>` to ``1.0``, :ref:`linear_damp_mode<class_PhysicalBone3D_property_linear_damp_mode>` to :ref:`DAMP_MODE_REPLACE<class_PhysicalBone3D_constant_DAMP_MODE_REPLACE>`, :ref:`linear_damp<class_PhysicalBone3D_property_linear_damp>` to ``0.0``, :ref:`angular_damp_mode<class_PhysicalBone3D_property_angular_damp_mode>` to :ref:`DAMP_MODE_REPLACE<class_PhysicalBone3D_constant_DAMP_MODE_REPLACE>`, and :ref:`angular_damp<class_PhysicalBone3D_property_angular_damp>` to ``0.0``.

.. rst-class:: classref-item-separator

----

.. _class_PhysicalBone3D_property_can_sleep:

.. rst-class:: classref-property

:ref:`bool<class_bool>` **can_sleep** = ``true`` :ref:`🔗<class_PhysicalBone3D_property_can_sleep>`

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

- |void| **set_can_sleep**\ (\ value\: :ref:`bool<class_bool>`\ )
- :ref:`bool<class_bool>` **is_able_to_sleep**\ (\ )

If ``true``, the body is deactivated when there is no movement, so it will not take part in the simulation until it is awakened by an external force.

.. rst-class:: classref-item-separator

----

.. _class_PhysicalBone3D_property_custom_integrator:

.. rst-class:: classref-property

:ref:`bool<class_bool>` **custom_integrator** = ``false`` :ref:`🔗<class_PhysicalBone3D_property_custom_integrator>`

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

- |void| **set_use_custom_integrator**\ (\ value\: :ref:`bool<class_bool>`\ )
- :ref:`bool<class_bool>` **is_using_custom_integrator**\ (\ )

If ``true``, the standard force integration (like gravity or damping) will be disabled for this body. Other than collision response, the body will only move as determined by the :ref:`_integrate_forces()<class_PhysicalBone3D_private_method__integrate_forces>` method, if that virtual method is overridden.

Setting this property will call the method :ref:`PhysicsServer3D.body_set_omit_force_integration()<class_PhysicsServer3D_method_body_set_omit_force_integration>` internally.

.. rst-class:: classref-item-separator

----

.. _class_PhysicalBone3D_property_friction:

.. rst-class:: classref-property

:ref:`float<class_float>` **friction** = ``1.0`` :ref:`🔗<class_PhysicalBone3D_property_friction>`

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

- |void| **set_friction**\ (\ value\: :ref:`float<class_float>`\ )
- :ref:`float<class_float>` **get_friction**\ (\ )

The body's friction, from ``0`` (frictionless) to ``1`` (max friction).

.. rst-class:: classref-item-separator

----

.. _class_PhysicalBone3D_property_gravity_scale:

.. rst-class:: classref-property

:ref:`float<class_float>` **gravity_scale** = ``1.0`` :ref:`🔗<class_PhysicalBone3D_property_gravity_scale>`

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

- |void| **set_gravity_scale**\ (\ value\: :ref:`float<class_float>`\ )
- :ref:`float<class_float>` **get_gravity_scale**\ (\ )

This is multiplied by :ref:`ProjectSettings.physics/3d/default_gravity<class_ProjectSettings_property_physics/3d/default_gravity>` to produce this body's gravity. For example, a value of ``1.0`` will apply normal gravity, ``2.0`` will apply double the gravity, and ``0.5`` will apply half the gravity to this body.

.. rst-class:: classref-item-separator

----

.. _class_PhysicalBone3D_property_joint_offset:

.. rst-class:: classref-property

:ref:`Transform3D<class_Transform3D>` **joint_offset** = ``Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0)`` :ref:`🔗<class_PhysicalBone3D_property_joint_offset>`

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

- |void| **set_joint_offset**\ (\ value\: :ref:`Transform3D<class_Transform3D>`\ )
- :ref:`Transform3D<class_Transform3D>` **get_joint_offset**\ (\ )

Sets the joint's transform.

.. rst-class:: classref-item-separator

----

.. _class_PhysicalBone3D_property_joint_rotation:

.. rst-class:: classref-property

:ref:`Vector3<class_Vector3>` **joint_rotation** = ``Vector3(0, 0, 0)`` :ref:`🔗<class_PhysicalBone3D_property_joint_rotation>`

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

- |void| **set_joint_rotation**\ (\ value\: :ref:`Vector3<class_Vector3>`\ )
- :ref:`Vector3<class_Vector3>` **get_joint_rotation**\ (\ )

Sets the joint's rotation in radians.

.. rst-class:: classref-item-separator

----

.. _class_PhysicalBone3D_property_joint_type:

.. rst-class:: classref-property

:ref:`JointType<enum_PhysicalBone3D_JointType>` **joint_type** = ``0`` :ref:`🔗<class_PhysicalBone3D_property_joint_type>`

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

- |void| **set_joint_type**\ (\ value\: :ref:`JointType<enum_PhysicalBone3D_JointType>`\ )
- :ref:`JointType<enum_PhysicalBone3D_JointType>` **get_joint_type**\ (\ )

Sets the joint type.

.. rst-class:: classref-item-separator

----

.. _class_PhysicalBone3D_property_linear_damp:

.. rst-class:: classref-property

:ref:`float<class_float>` **linear_damp** = ``0.0`` :ref:`🔗<class_PhysicalBone3D_property_linear_damp>`

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

- |void| **set_linear_damp**\ (\ value\: :ref:`float<class_float>`\ )
- :ref:`float<class_float>` **get_linear_damp**\ (\ )

Damps the body's movement. By default, the body will use :ref:`ProjectSettings.physics/3d/default_linear_damp<class_ProjectSettings_property_physics/3d/default_linear_damp>` or any value override set by an :ref:`Area3D<class_Area3D>` the body is in. Depending on :ref:`linear_damp_mode<class_PhysicalBone3D_property_linear_damp_mode>`, :ref:`linear_damp<class_PhysicalBone3D_property_linear_damp>` may be added to or replace the body's damping value.

See :ref:`ProjectSettings.physics/3d/default_linear_damp<class_ProjectSettings_property_physics/3d/default_linear_damp>` for more details about damping.

.. rst-class:: classref-item-separator

----

.. _class_PhysicalBone3D_property_linear_damp_mode:

.. rst-class:: classref-property

:ref:`DampMode<enum_PhysicalBone3D_DampMode>` **linear_damp_mode** = ``0`` :ref:`🔗<class_PhysicalBone3D_property_linear_damp_mode>`

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

- |void| **set_linear_damp_mode**\ (\ value\: :ref:`DampMode<enum_PhysicalBone3D_DampMode>`\ )
- :ref:`DampMode<enum_PhysicalBone3D_DampMode>` **get_linear_damp_mode**\ (\ )

Defines how :ref:`linear_damp<class_PhysicalBone3D_property_linear_damp>` is applied.

.. rst-class:: classref-item-separator

----

.. _class_PhysicalBone3D_property_linear_velocity:

.. rst-class:: classref-property

:ref:`Vector3<class_Vector3>` **linear_velocity** = ``Vector3(0, 0, 0)`` :ref:`🔗<class_PhysicalBone3D_property_linear_velocity>`

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

- |void| **set_linear_velocity**\ (\ value\: :ref:`Vector3<class_Vector3>`\ )
- :ref:`Vector3<class_Vector3>` **get_linear_velocity**\ (\ )

The body's linear velocity in units per second. Can be used sporadically, but **don't set this every frame**, because physics may run in another thread and runs at a different granularity. Use :ref:`_integrate_forces()<class_PhysicalBone3D_private_method__integrate_forces>` as your process loop for precise control of the body state.

.. rst-class:: classref-item-separator

----

.. _class_PhysicalBone3D_property_mass:

.. rst-class:: classref-property

:ref:`float<class_float>` **mass** = ``1.0`` :ref:`🔗<class_PhysicalBone3D_property_mass>`

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

- |void| **set_mass**\ (\ value\: :ref:`float<class_float>`\ )
- :ref:`float<class_float>` **get_mass**\ (\ )

The body's mass.

.. rst-class:: classref-section-separator

----

.. rst-class:: classref-descriptions-group

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

.. _class_PhysicalBone3D_private_method__integrate_forces:

.. rst-class:: classref-method

|void| **_integrate_forces**\ (\ state\: :ref:`PhysicsDirectBodyState3D<class_PhysicsDirectBodyState3D>`\ ) |virtual| :ref:`🔗<class_PhysicalBone3D_private_method__integrate_forces>`

Called during physics processing, allowing you to read and safely modify the simulation state for the object. By default, it is called before the standard force integration, but the :ref:`custom_integrator<class_PhysicalBone3D_property_custom_integrator>` property allows you to disable the standard force integration and do fully custom force integration for a body.

.. rst-class:: classref-item-separator

----

.. _class_PhysicalBone3D_method_apply_central_impulse:

.. rst-class:: classref-method

|void| **apply_central_impulse**\ (\ impulse\: :ref:`Vector3<class_Vector3>`\ ) :ref:`🔗<class_PhysicalBone3D_method_apply_central_impulse>`

Applies a directional impulse without affecting rotation.

An impulse is time-independent! Applying an impulse every frame would result in a framerate-dependent force. For this reason, it should only be used when simulating one-time impacts (use the "_integrate_forces" functions otherwise).

This is equivalent to using :ref:`apply_impulse()<class_PhysicalBone3D_method_apply_impulse>` at the body's center of mass.

.. rst-class:: classref-item-separator

----

.. _class_PhysicalBone3D_method_apply_impulse:

.. rst-class:: classref-method

|void| **apply_impulse**\ (\ impulse\: :ref:`Vector3<class_Vector3>`, position\: :ref:`Vector3<class_Vector3>` = Vector3(0, 0, 0)\ ) :ref:`🔗<class_PhysicalBone3D_method_apply_impulse>`

Applies a positioned impulse to the PhysicsBone3D.

An impulse is time-independent! Applying an impulse every frame would result in a framerate-dependent force. For this reason, it should only be used when simulating one-time impacts (use the "_integrate_forces" functions otherwise).

\ ``position`` is the offset from the PhysicsBone3D origin in global coordinates.

.. rst-class:: classref-item-separator

----

.. _class_PhysicalBone3D_method_get_bone_id:

.. rst-class:: classref-method

:ref:`int<class_int>` **get_bone_id**\ (\ ) |const| :ref:`🔗<class_PhysicalBone3D_method_get_bone_id>`

Returns the unique identifier of the PhysicsBone3D.

.. rst-class:: classref-item-separator

----

.. _class_PhysicalBone3D_method_get_simulate_physics:

.. rst-class:: classref-method

:ref:`bool<class_bool>` **get_simulate_physics**\ (\ ) :ref:`🔗<class_PhysicalBone3D_method_get_simulate_physics>`

Returns ``true`` if the PhysicsBone3D is allowed to simulate physics.

.. rst-class:: classref-item-separator

----

.. _class_PhysicalBone3D_method_is_simulating_physics:

.. rst-class:: classref-method

:ref:`bool<class_bool>` **is_simulating_physics**\ (\ ) :ref:`🔗<class_PhysicalBone3D_method_is_simulating_physics>`

Returns ``true`` if the PhysicsBone3D is currently simulating physics.

.. |virtual| replace:: :abbr:`virtual (This method should typically be overridden by the user to have any effect.)`
.. |required| replace:: :abbr:`required (This method is required to be overridden when extending its base class.)`
.. |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.)`