This PR and commit adds a new IK system for 2D with the Skeleton2D node
that adds several new IK solvers, a way to control bones in a Skeleton2D
node similar to that in Skeleton3D. It also adds additional changes
and functionality.
This work was sponsored by GSoC 2020 and TwistedTwigleg.
Full list of changes:
* Adds a SkeletonModifier2D resource
* This resource is the base where all IK code is written and executed
* Has a function for clamping angles, since it is so commonly used
* Modifiers are unique when duplicated so it works with instancing
* Adds a SkeletonModifierStack2D resource
* This resource manages a series of SkeletonModification2Ds
* This is what the Skeleton2D directly interfaces with to make IK possible
* Adds SkeletonModifier2D resources for LookAt, CCDIK, FABRIK, Jiggle, and TwoBoneIK
* Each modification is in its own file
* There is also a SkeletonModifier2D resource that acts as a stack for using multiple stacks together
* Adds a PhysicalBone2D node
* Works similar to the PhysicalBone3D node, but uses a RigidBody2D node
* Changes to Skeleton2D listed below:
* Skeleton2D now holds a single SkeletonModificationStack2D for IK
* Skeleton2D now has a local_pose_override, which overrides the Bone2D position similar to how the overrides work in Skeleton3D
* Changes to Bone2D listed below:
* The default_length property has been changed to length. Length is the length of the bone to its child bone node
* New bone_angle property, which is the angle the bone has to its first child bone node
* Bone2D caches its transform when not modified by IK for IK interpolation purposes
* Bone2D draws its own editor gizmo, though this is stated to change in the future
* Changes to CanvasItemEditor listed below:
* Bone2D gizmo drawing code removed
* The 2D IK code is removed. Now Bone2D is the only bone system for 2D
* Transform2D now has a looking_at function for rotating to face a position
* Two new node notifications: NOTIFICATION_EDITOR_PRE_SAVE and NOTIFICATION_EDITOR_POST_SAVE
* These notifications only are called in the editor right before and after saving a scene
* Needed for not saving the IK position when executing IK in the editor
* Documentation for all the changes listed above.
Fixes#48420, fixes#48421.
The binding was missed when moving GDScript built-in to Global Scope it seems.
Co-authored-by: kleonc <9283098+kleonc@users.noreply.github.com>
We've been using standard C library functions `memcpy`/`memset` for these since
2016 with 67f65f6639.
There was still the possibility for third-party platform ports to override the
definitions with a custom header, but this doesn't seem useful anymore.
-Decode/Encode functions for u8,s8,u16,s16,u32,s32,u64,s64,half,float,double,variant
-Improved binder template to allow this
Given in Godot 4.0 PackedByteArray is passed as reference, it is now possible to have these functions there, which makes the most sense.
This ensure that typed arrays are properly checked when setting an
element.
Moved the macro to a straight declaration since the macro was only used
for Array and it now is quite specific to the Array class.
The array should just assimilate the type of the other one since
assignment in this case means a change in the reference.
This also adds a `typed_assign` function for the cases where type
validation is wanted.
* Properly exposed, including validated and variant call
* Bound static functions in String and Color
* Did not add support for scripting languages, will have to be added manually.
Other functions in the same file validate parameters using the ERR_FAIL
macros. This validation was missing for Variant::construct resulting in
a crash when called with invalid data (p_type < 0).
fix#46067
