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godot-docs/classes/class_skeleton2d.rst

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.. DO NOT EDIT THIS FILE, but the Skeleton2D.xml source instead.
.. The source is found in doc/classes or modules/<name>/doc_classes.
.. _class_Skeleton2D:
Skeleton2D
==========
**Inherits:** :ref:`Node2D<class_Node2D>` **<** :ref:`CanvasItem<class_CanvasItem>` **<** :ref:`Node<class_Node>` **<** :ref:`Object<class_Object>`
Skeleton for 2D characters and animated objects.
Description
-----------
Skeleton2D parents a hierarchy of :ref:`Bone2D<class_Bone2D>` objects. It is a requirement of :ref:`Bone2D<class_Bone2D>`. Skeleton2D holds a reference to the rest pose of its children and acts as a single point of access to its bones.
To setup different types of inverse kinematics for the given Skeleton2D, a :ref:`SkeletonModificationStack2D<class_SkeletonModificationStack2D>` should be created. They can be applied by creating the desired number of modifications, which can be done by increasing :ref:`SkeletonModificationStack2D.modification_count<class_SkeletonModificationStack2D_property_modification_count>`.
Tutorials
---------
- :doc:`2D skeletons <../tutorials/animation/2d_skeletons>`
Methods
-------
+-----------------------------------------------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| void | :ref:`execute_modifications<class_Skeleton2D_method_execute_modifications>` **(** :ref:`float<class_float>` delta, :ref:`int<class_int>` execution_mode **)** |
+-----------------------------------------------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`Bone2D<class_Bone2D>` | :ref:`get_bone<class_Skeleton2D_method_get_bone>` **(** :ref:`int<class_int>` idx **)** |
+-----------------------------------------------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`int<class_int>` | :ref:`get_bone_count<class_Skeleton2D_method_get_bone_count>` **(** **)** |const| |
+-----------------------------------------------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`Transform2D<class_Transform2D>` | :ref:`get_bone_local_pose_override<class_Skeleton2D_method_get_bone_local_pose_override>` **(** :ref:`int<class_int>` bone_idx **)** |
+-----------------------------------------------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`SkeletonModificationStack2D<class_SkeletonModificationStack2D>` | :ref:`get_modification_stack<class_Skeleton2D_method_get_modification_stack>` **(** **)** |const| |
+-----------------------------------------------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`RID<class_RID>` | :ref:`get_skeleton<class_Skeleton2D_method_get_skeleton>` **(** **)** |const| |
+-----------------------------------------------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| void | :ref:`set_bone_local_pose_override<class_Skeleton2D_method_set_bone_local_pose_override>` **(** :ref:`int<class_int>` bone_idx, :ref:`Transform2D<class_Transform2D>` override_pose, :ref:`float<class_float>` strength, :ref:`bool<class_bool>` persistent **)** |
+-----------------------------------------------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| void | :ref:`set_modification_stack<class_Skeleton2D_method_set_modification_stack>` **(** :ref:`SkeletonModificationStack2D<class_SkeletonModificationStack2D>` modification_stack **)** |
+-----------------------------------------------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
Signals
-------
.. _class_Skeleton2D_signal_bone_setup_changed:
- **bone_setup_changed** **(** **)**
Emitted when the :ref:`Bone2D<class_Bone2D>` setup attached to this skeletons changes. This is primarily used internally within the skeleton.
Method Descriptions
-------------------
.. _class_Skeleton2D_method_execute_modifications:
- void **execute_modifications** **(** :ref:`float<class_float>` delta, :ref:`int<class_int>` execution_mode **)**
Executes all the modifications on the :ref:`SkeletonModificationStack2D<class_SkeletonModificationStack2D>`, if the Skeleton3D has one assigned.
----
.. _class_Skeleton2D_method_get_bone:
- :ref:`Bone2D<class_Bone2D>` **get_bone** **(** :ref:`int<class_int>` idx **)**
Returns a :ref:`Bone2D<class_Bone2D>` from the node hierarchy parented by Skeleton2D. The object to return is identified by the parameter ``idx``. Bones are indexed by descending the node hierarchy from top to bottom, adding the children of each branch before moving to the next sibling.
----
.. _class_Skeleton2D_method_get_bone_count:
- :ref:`int<class_int>` **get_bone_count** **(** **)** |const|
Returns the number of :ref:`Bone2D<class_Bone2D>` nodes in the node hierarchy parented by Skeleton2D.
----
.. _class_Skeleton2D_method_get_bone_local_pose_override:
- :ref:`Transform2D<class_Transform2D>` **get_bone_local_pose_override** **(** :ref:`int<class_int>` bone_idx **)**
Returns the local pose override transform for ``bone_idx``.
----
.. _class_Skeleton2D_method_get_modification_stack:
- :ref:`SkeletonModificationStack2D<class_SkeletonModificationStack2D>` **get_modification_stack** **(** **)** |const|
Returns the :ref:`SkeletonModificationStack2D<class_SkeletonModificationStack2D>` attached to this skeleton, if one exists.
----
.. _class_Skeleton2D_method_get_skeleton:
- :ref:`RID<class_RID>` **get_skeleton** **(** **)** |const|
Returns the :ref:`RID<class_RID>` of a Skeleton2D instance.
----
.. _class_Skeleton2D_method_set_bone_local_pose_override:
- void **set_bone_local_pose_override** **(** :ref:`int<class_int>` bone_idx, :ref:`Transform2D<class_Transform2D>` override_pose, :ref:`float<class_float>` strength, :ref:`bool<class_bool>` persistent **)**
Sets the local pose transform, ``pose``, for the bone at ``bone_idx``.
``amount`` is the interpolation strength that will be used when applying the pose, and ``persistent`` determines if the applied pose will remain.
**Note:** The pose transform needs to be a local transform relative to the :ref:`Bone2D<class_Bone2D>` node at ``bone_idx``!
----
.. _class_Skeleton2D_method_set_modification_stack:
- void **set_modification_stack** **(** :ref:`SkeletonModificationStack2D<class_SkeletonModificationStack2D>` modification_stack **)**
Sets the :ref:`SkeletonModificationStack2D<class_SkeletonModificationStack2D>` attached to this 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.)`