/******************************************************************************
 * Copyright (C) Ultraleap, Inc. 2011-2021.                                   *
 *                                                                            *
 * Use subject to the terms of the Apache License 2.0 available at            *
 * http://www.apache.org/licenses/LICENSE-2.0, or another agreement           *
 * between Ultraleap and you, your company or other organization.             *
 ******************************************************************************/

using Leap;
using System.Collections;
using UnityEngine;

namespace Leap.Unity
{
    /** 
     * A finger object consisting of discrete, component parts for each bone.
     * 
     * The graphic objects can include both bones and joints, but both are optional.
     */
    public class SkeletalFinger : FingerModel
    {

        /** Initializes the finger bones and joints by setting their positions and rotations. */
        public override void InitFinger()
        {
            SetPositions();
        }

        /** Updates the finger bones and joints by setting their positions and rotations. */
        public override void UpdateFinger()
        {
            SetPositions();
        }

        protected void SetPositions()
        {
            for (int i = 0; i < bones.Length; ++i)
            {
                if (bones[i] != null)
                {
                    bones[i].transform.position = GetBoneCenter(i);
                    bones[i].transform.rotation = GetBoneRotation(i);
                }
            }

            for (int i = 0; i < joints.Length; ++i)
            {
                if (joints[i] != null)
                {
                    joints[i].transform.position = GetJointPosition(i + 1);
                    joints[i].transform.rotation = GetBoneRotation(i + 1);
                }
            }
        }
    }
}