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import * as gfx from 'gophergfx'
import { AnimatedBone } from './AnimatedBone';
import { AnimatedCharacter } from './AnimatedCharacter'

export class JointSpaceAxesCharacter extends AnimatedCharacter
{
    constructor() {
        super();
    }

    public override addGeometryToAnimatedBone(bone: AnimatedBone): void
    {
        // Choose a base size for the axes. For the root, we enlarge the axes.
        let size = 0.15;
        if (bone.name === "root") {
            size *= 2;
        }
        // Create the axes geometry.
        const axes = gfx.Geometry3Factory.createAxes(size);
        
        // Retrieve the transform from bone space to joint space for this bone.
        // (This method should be provided by your BoneData.)
        const boneToJoint = this.boneData.boneSpaceToJointSpace(bone.name);
        
        // Convert the boneToJoint matrix to a quaternion.
        let jointQuat = new gfx.Quaternion();
        jointQuat.setMatrix(boneToJoint);
        
        // Instead of setting localToParentMatrix, directly set the rotation.
        axes.rotation.copy(jointQuat);
        // Ensure the axes are at the bone's origin.
        axes.position.set(0, 0, 0);
        
        // Add the axes to the bone.
        bone.add(axes);
    }
}