smart-bow-infrared/Assets/BowArrow/Scripts/Game/CameraToLook.cs

using System;
using UnityEngine;
/* 弓的摄像机总会LookAt该节点的Point子节点
九轴数据是直接应用到该节点的（特意分离而不直接应用到弓的摄像机） 是为了避免z轴旋转 
*/
public class CameraToLook : MonoBehaviour
{
    [NonSerialized] public Transform point;
    [SerializeField] bool onlyParseRotation = false;
    public Action<Quaternion> onParseRotation;
    public static CameraToLook ins;
    void Awake()
    {
        ins = this;
        point = transform.Find("Point");
    }
    void OnDestroy()
    {
        if (ins == this) ins = null;
    }

    public Quaternion localRotation {
        get
        {
            return transform.localRotation;
        }
        set 
        {
            transform.localRotation = value;
            if (onlyParseRotation) {
                //去掉z轴影响
                Vector3 normalVector = value * Vector3.forward;
                Quaternion normalQuat = Quaternion.LookRotation(normalVector);
                try
                {
                    if (BluetoothAim.ins.status == BluetoothStatusEnum.ConnectSuccess)
                        onParseRotation?.Invoke(normalQuat);
                    #if UNITY_EDITOR
                    else if (InfraredDemo.DebugInEditor) onParseRotation?.Invoke(normalQuat);
                    #endif
                }
                catch (System.Exception e)
                {
                    Debug.LogError(e);
                }
            }    
        }
    }
}