godot-docs/classes/class_skeletonmodification2d.rst

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.. _class_SkeletonModification2D:

SkeletonModification2D
======================

**Inherits:** :ref:`Resource<class_Resource>` **<** :ref:`RefCounted<class_RefCounted>` **<** :ref:`Object<class_Object>`

**Inherited By:** :ref:`SkeletonModification2DCCDIK<class_SkeletonModification2DCCDIK>`, :ref:`SkeletonModification2DFABRIK<class_SkeletonModification2DFABRIK>`, :ref:`SkeletonModification2DJiggle<class_SkeletonModification2DJiggle>`, :ref:`SkeletonModification2DLookAt<class_SkeletonModification2DLookAt>`, :ref:`SkeletonModification2DPhysicalBones<class_SkeletonModification2DPhysicalBones>`, :ref:`SkeletonModification2DStackHolder<class_SkeletonModification2DStackHolder>`, :ref:`SkeletonModification2DTwoBoneIK<class_SkeletonModification2DTwoBoneIK>`

Base class for resources that operate on :ref:`Bone2D<class_Bone2D>`\ s in a :ref:`Skeleton2D<class_Skeleton2D>`.

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

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

This resource provides an interface that can be expanded so code that operates on :ref:`Bone2D<class_Bone2D>` nodes in a :ref:`Skeleton2D<class_Skeleton2D>` can be mixed and matched together to create complex interactions.

This is used to provide Godot with a flexible and powerful Inverse Kinematics solution that can be adapted for many different uses.

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

Properties
----------

.. table::
   :widths: auto

   +-------------------------+-----------------------------------------------------------------------------+----------+
   | :ref:`bool<class_bool>` | :ref:`enabled<class_SkeletonModification2D_property_enabled>`               | ``true`` |
   +-------------------------+-----------------------------------------------------------------------------+----------+
   | :ref:`int<class_int>`   | :ref:`execution_mode<class_SkeletonModification2D_property_execution_mode>` | ``0``    |
   +-------------------------+-----------------------------------------------------------------------------+----------+

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

Methods
-------

.. table::
   :widths: auto

   +-----------------------------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | void                                                                  | :ref:`_draw_editor_gizmo<class_SkeletonModification2D_method__draw_editor_gizmo>` **(** **)** |virtual|                                                                                                       |
   +-----------------------------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | void                                                                  | :ref:`_execute<class_SkeletonModification2D_method__execute>` **(** :ref:`float<class_float>` delta **)** |virtual|                                                                                           |
   +-----------------------------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | void                                                                  | :ref:`_setup_modification<class_SkeletonModification2D_method__setup_modification>` **(** :ref:`SkeletonModificationStack2D<class_SkeletonModificationStack2D>` modification_stack **)** |virtual|            |
   +-----------------------------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`float<class_float>`                                             | :ref:`clamp_angle<class_SkeletonModification2D_method_clamp_angle>` **(** :ref:`float<class_float>` angle, :ref:`float<class_float>` min, :ref:`float<class_float>` max, :ref:`bool<class_bool>` invert **)** |
   +-----------------------------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`bool<class_bool>`                                               | :ref:`get_editor_draw_gizmo<class_SkeletonModification2D_method_get_editor_draw_gizmo>` **(** **)** |const|                                                                                                   |
   +-----------------------------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`bool<class_bool>`                                               | :ref:`get_is_setup<class_SkeletonModification2D_method_get_is_setup>` **(** **)** |const|                                                                                                                     |
   +-----------------------------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`SkeletonModificationStack2D<class_SkeletonModificationStack2D>` | :ref:`get_modification_stack<class_SkeletonModification2D_method_get_modification_stack>` **(** **)**                                                                                                         |
   +-----------------------------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | void                                                                  | :ref:`set_editor_draw_gizmo<class_SkeletonModification2D_method_set_editor_draw_gizmo>` **(** :ref:`bool<class_bool>` draw_gizmo **)**                                                                        |
   +-----------------------------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | void                                                                  | :ref:`set_is_setup<class_SkeletonModification2D_method_set_is_setup>` **(** :ref:`bool<class_bool>` is_setup **)**                                                                                            |
   +-----------------------------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+

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

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

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

.. _class_SkeletonModification2D_property_enabled:

.. rst-class:: classref-property

:ref:`bool<class_bool>` **enabled** = ``true``

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

- void **set_enabled** **(** :ref:`bool<class_bool>` value **)**
- :ref:`bool<class_bool>` **get_enabled** **(** **)**

If ``true``, the modification's :ref:`_execute<class_SkeletonModification2D_method__execute>` function will be called by the :ref:`SkeletonModificationStack2D<class_SkeletonModificationStack2D>`.

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

----

.. _class_SkeletonModification2D_property_execution_mode:

.. rst-class:: classref-property

:ref:`int<class_int>` **execution_mode** = ``0``

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

- void **set_execution_mode** **(** :ref:`int<class_int>` value **)**
- :ref:`int<class_int>` **get_execution_mode** **(** **)**

The execution mode for the modification. This tells the modification stack when to execute the modification. Some modifications have settings that are only available in certain execution modes.

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

----

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

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

.. _class_SkeletonModification2D_method__draw_editor_gizmo:

.. rst-class:: classref-method

void **_draw_editor_gizmo** **(** **)** |virtual|

Used for drawing **editor-only** modification gizmos. This function will only be called in the Godot editor and can be overridden to draw custom gizmos.

\ **Note:** You will need to use the Skeleton2D from :ref:`SkeletonModificationStack2D.get_skeleton<class_SkeletonModificationStack2D_method_get_skeleton>` and it's draw functions, as the **SkeletonModification2D** resource cannot draw on its own.

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

----

.. _class_SkeletonModification2D_method__execute:

.. rst-class:: classref-method

void **_execute** **(** :ref:`float<class_float>` delta **)** |virtual|

Executes the given modification. This is where the modification performs whatever function it is designed to do.

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

----

.. _class_SkeletonModification2D_method__setup_modification:

.. rst-class:: classref-method

void **_setup_modification** **(** :ref:`SkeletonModificationStack2D<class_SkeletonModificationStack2D>` modification_stack **)** |virtual|

Called when the modification is setup. This is where the modification performs initialization.

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

----

.. _class_SkeletonModification2D_method_clamp_angle:

.. rst-class:: classref-method

:ref:`float<class_float>` **clamp_angle** **(** :ref:`float<class_float>` angle, :ref:`float<class_float>` min, :ref:`float<class_float>` max, :ref:`bool<class_bool>` invert **)**

Takes an angle and clamps it so it is within the passed-in ``min`` and ``max`` range. ``invert`` will inversely clamp the angle, clamping it to the range outside of the given bounds.

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

----

.. _class_SkeletonModification2D_method_get_editor_draw_gizmo:

.. rst-class:: classref-method

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

Returns whether this modification will call :ref:`_draw_editor_gizmo<class_SkeletonModification2D_method__draw_editor_gizmo>` in the Godot editor to draw modification-specific gizmos.

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

----

.. _class_SkeletonModification2D_method_get_is_setup:

.. rst-class:: classref-method

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

Returns whether this modification has been successfully setup or not.

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

----

.. _class_SkeletonModification2D_method_get_modification_stack:

.. rst-class:: classref-method

:ref:`SkeletonModificationStack2D<class_SkeletonModificationStack2D>` **get_modification_stack** **(** **)**

Returns the :ref:`SkeletonModificationStack2D<class_SkeletonModificationStack2D>` that this modification is bound to. Through the modification stack, you can access the Skeleton2D the modification is operating on.

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

----

.. _class_SkeletonModification2D_method_set_editor_draw_gizmo:

.. rst-class:: classref-method

void **set_editor_draw_gizmo** **(** :ref:`bool<class_bool>` draw_gizmo **)**

Sets whether this modification will call :ref:`_draw_editor_gizmo<class_SkeletonModification2D_method__draw_editor_gizmo>` in the Godot editor to draw modification-specific gizmos.

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

----

.. _class_SkeletonModification2D_method_set_is_setup:

.. rst-class:: classref-method

void **set_is_setup** **(** :ref:`bool<class_bool>` is_setup **)**

Manually allows you to set the setup state of the modification. This function should only rarely be used, as the :ref:`SkeletonModificationStack2D<class_SkeletonModificationStack2D>` the modification is bound to should handle setting the modification up.

.. |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.)`