using Microsoft.MixedReality.Toolkit.Input;
using Microsoft.MixedReality.Toolkit.Utilities;
using UnityEngine;

public class ObjRotateController : MonoBehaviour
{
    private float flatHandThreshold = 45.0f;
    /// <summary>
    /// 手掌向上的法线与摄像头向前射线的夹角
    /// </summary>
    private float facingCameraTrackingThreshold = 80.0f;
    /// <summary>
    /// 是否要求手指打开
    /// </summary>
    private bool requireFlatHand = true;

    private bool IsPalmMeetingThresholdRequirements()
    {
        MixedRealityPose palmPose;
        if (requireFlatHand)
        {
            MixedRealityPose indexTipPose, ringTipPose;
            Handedness handedness = Handedness.Left;

            if (HandJointUtils.TryGetJointPose(TrackedHandJoint.IndexTip, Handedness.Right, out indexTipPose)
                && HandJointUtils.TryGetJointPose(TrackedHandJoint.RingTip, Handedness.Right, out ringTipPose)
                 && HandJointUtils.TryGetJointPose(TrackedHandJoint.Palm, Handedness.Right, out palmPose))
            {
                var handNormal = Vector3.Cross(indexTipPose.Position - palmPose.Position,
                                             ringTipPose.Position - indexTipPose.Position).normalized;
                handNormal *= (handedness == Handedness.Right) ? 1.0f : -1.0f;

                if (Vector3.Angle(palmPose.Up, handNormal) > flatHandThreshold)
                {
                    return false;
                }
            }
        }

        if (HandJointUtils.TryGetJointPose(TrackedHandJoint.Palm, Handedness.Right, out palmPose))
        {
            float palmCameraAngle = Vector3.Angle(palmPose.Up, CameraCache.Main.transform.forward);
            return palmCameraAngle < facingCameraTrackingThreshold;
        }
        return false;
    }


    // Start is called before the first frame update
    void Start()
    {

    }

    // Update is called once per frame
    void Update()
    {

    }
}