How can I get AnimationNode that is connected to an AnimationNodeOutput

[nena]

Godot Version

v4.5.1

Question

I have an AnimationNodeBlendTree object which I created programmatically, and an output node (AnimationNodeOutput object) that was created along with this AnimationNodeBlendTree object.

How do I get a node that is connected to the input of this output node, if it exists?

[mrcdk]

Use AnimationNode.get_input_name() to get the name of the AnimationNode and then AnimationNodeBlendTree.get_node() to get that AnimationNode.

[nena]

AnimationNode.get_input_name() seems to return the name of input socket,

not the name of node connected to the node.

[nena]

[mrcdk]

Ah, right. I didn’t test it and the documentation wasn’t clear

It’s possible to get the connections but it’s not exposed directly.

scene/animation/animation_blend_tree.cpp

extends Node


@onready var animation_tree: AnimationTree = $AnimationTree


func _ready() -> void:
	var tree = animation_tree.tree_root as AnimationNodeBlendTree
	var connections = tree.get("node_connections")
	for i in range(0, connections.size(), 3):
		var target = connections[i + 0]
		var input_idx = connections[i + 1]
		var source = connections[i + 2]
		print("Node %s is connected to %s in port %s" % [source, target, input_idx])

[nena]

Thanks for taking the time to look into the codebase for me, It worked.