How do I set Pos X and Pos Y of motions in a 2D blendtree using the Animation Asset API ?

Questions & Answers
1

I’ve been trying to make a editor script that automatically assigns animations in a 2D blend tree. I have trouble setting the positions of the motions in the 2D blend tree.

Declaring the blend tree and adding children.

    BlendTree blendTree;
	AnimatorState grounded = controller.CreateBlendTreeInController ("Grounder", out blendTree);

	blendTree.blendType = BlendTreeType.FreeformDirectional2D;
	blendTree.blendParameter = "Turn";
	blendTree.blendParameterY = "Speed";
	blendTree.AddChild (idleAnim);
	blendTree.AddChild (idleLeft);
	blendTree.AddChild (idleRight);
	blendTree.AddChild (walkAnim);
	blendTree.AddChild (walkLeft);
	blendTree.AddChild (walkRight);

This is where the problem is. I tried using this:

blendTree.children[0].position = new Vector2 (0f, 0f);
blendTree.children[1].position = new Vector2 (-1f, 0f);
blendTree.children[2].position = new Vector2 (1f, 0f);
blendTree.children[3].position = new Vector2 (0f, 1f);
blendTree.children[4].position = new Vector2 (-1f, 1f);
blendTree.children[5].position = new Vector2 (1f, 1f);

But When I ran the code the position of all the Child Motions was 0, 0.

Is there a solution to this problem ?

Thanks in advance.

2

Upon second look of the AddChild function I noticed that It can take a second argument that defines its position.

This worked fine:

blendTree.AddChild (idleAnim, new Vector2 (0f, 0f));
blendTree.AddChild (walkAnim, new Vector2 (0f, 1f));