Having 2 SkeletonIK running at the same time ?

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Having 2 SkeletonIK running at the same time ?

Loxyrak

Hi, Is there any way to have 2 SkeletonIK's Nodes running at the same time ? The goal is to have 2 hands attached to an object so I can move the object freely and make procedural attack animations (with some rand in there) But if I hit play IK on one SkeletonIK, it cancels the other.

TwistedTwigleg

You can have two SkeletonIK nodes playing at once during game play, but I do not believe there is a way to have both enabled in the editor by default.

If you have a script with tool at the beginning though, I think you could enable both. Something like this might work, though I have not tested it:

tool
extends Spatial

export (NodePath) var pathToSkeletonIK1
export (NodePath) var pathToSkeletonIK2

export (bool) var EnableIK = false setget SetGetEnableIK

func SetGetEnableIK(value):
	EnableIK = value
	
	if (EnableIK == true):
		get_node(pathToSkeletonIK1).start()
		get_node(pathToSkeletonIK2).start()
	else:
		get_node(pathToSkeletonIK1).stop()
		get_node(pathToSkeletonIK2).stop()

Loxyrak

Can confirm it works in Godot 3, I'm trying to port it over to godot 4, but I'm running into differents ways to do things I imagine, that line gives me trouble in Godot 4 : @export (bool) var EnableIK = false setget SetGetEnableIK , the 2 previous var are fine, but that one, I'm not sure how to write it. Thanks !

TwistedTwigleg

Great!

For Godot 4.0, I think the syntax for defining setters and getters has changed slightly. This QA post has an example that I think it should work.

Loxyrak

I know it's an old post but I ported the tool script to godot 4.

@tool
extends Node3D

@export var pathToSkeletonIK1 : NodePath
@export var pathToSkeletonIK2 : NodePath

@export var EnableIK : bool = false :
	set(value):
		EnableIK = value
		if (EnableIK == true):
			get_node(pathToSkeletonIK1).start()
			get_node(pathToSkeletonIK2).start()
		else:
			get_node(pathToSkeletonIK1).stop()
			get_node(pathToSkeletonIK2).stop()
	get:
		return EnableIK


func _ready():
	get_node(pathToSkeletonIK1).start()
	get_node(pathToSkeletonIK2).start()

Loxyrak

Well the code works for the editor, but the moment you start the game, it will give an error that It can't find the IK nodes..

TwistedTwigleg

Maybe try a yield (like yield(“idle_frame”) I think waits for one frame, not totally sure on the name though) in the _ready function? Maybe it is just being called before the IK nodes have a chance to spawn?