每當相機指向該物件時，如何選擇要拾取的物件？

我正在嘗試統一拾取物體。我有一個gameObject叫LookObject. 每當相機指向一個物件時，該物件的名稱就會存盤在 中LookObject，然后當我按下Space該物件時，該物件就會被拾取。它正在作業，但不完全。我面臨的問題是，當我看一個物件然后看另一個方向時，lookObject仍然顯示我正在查看的物件的名稱（它不會更新）。請看這張圖片：

如圖所示，標線未指向物件。但它仍將 Cube 顯示為 Look Object。

這里是PlayerInteractions類：

 GameObject[] targetObjects;
    List<GameObject> targetObjectsList;
    [Header("InteractableInfo")]
    public float sphereCastRadius = 0.5f;
    public int interactableLayerIndex;
    private Vector3 raycastPos;
    public GameObject lookObject; 
    private PhysicsObjects physicsObject;
    private Camera mainCamera;
    public GameObject winUI;
    private InteractiveObjects interactiveObjects;
    [Header("Pickup")]
    [SerializeField] private Transform pickupParent;
    public GameObject currentlyPickedUpObject;
    private Rigidbody pickupRB;
    [Header("ObjectFollow")]
    [SerializeField] private float minSpeed = 0;
    [SerializeField] private float maxSpeed = 300f;
    [SerializeField] private float maxDistance = 8f;
    private float currentSpeed = 0f;
    private float currentDist = 0f;
    [Header("Rotation")]
    public float rotationSpeed = 100f;
  //  Quaternion lookRot;
    [SerializeField] GameObject TargetsCanvas;
    static bool strikeThrough = false; 
 private void Start()
    {

        mainCamera = Camera.main;
        targetObjects = GameObject.FindGameObjectsWithTag("TargetObj");
        targetObjectsList = new List<GameObject>();
        foreach (var obj in targetObjects)
        {
            var mytext = CreateText(TargetsCanvas.transform);
            mytext.text = "? Find The "   obj.name;
            Debug.Log(""  obj.name); 
       }
        
    }

    //A simple visualization of the point we're following in the scene view
    private void OnDrawGizmos()
    {
        Gizmos.color = Color.yellow;
        Gizmos.DrawSphere(pickupParent.position, 0.5f);
    }
  void Update()
    {
        //Here we check if we're currently looking at an interactable object
        raycastPos = mainCamera.ScreenToWorldPoint(new Vector3(Screen.width / 2, Screen.height / 2, 0));
        RaycastHit hit;
        if (Physics.SphereCast(raycastPos, sphereCastRadius, mainCamera.transform.forward, out hit, maxDistance, 1 << interactableLayerIndex))
        {
            lookObject = hit.collider.transform.gameObject;

        }

        //if we press the button of choice
        if (Input.GetKeyDown(KeyCode.Space))
        {
            //and we're not holding anything
            if (currentlyPickedUpObject == null)
            {
                //and we are looking an interactable object
                if (lookObject != null )
                {
                    PickUpObject();            
                    if (!targetObjectsList.Contains(lookObject.gameObject))
                    {
                        targetObjectsList.Add(lookObject.gameObject);

                        if (targetObjectsList.Count == targetObjects.Length) 
                        {
                          //  Time.timeScale = 0f;
                          //  winUI.SetActive(true);
                            // SceneManager.LoadScene(SceneManager.GetActiveScene().buildIndex   1);
                            // Time.timeScale = 1f;
                        }
                    }
                   
                }
            }
            //if we press the pickup button and have something, we drop it
            else
            {
                BreakConnection();
            }
        }
}
 private void FixedUpdate()
    {
        if (currentlyPickedUpObject != null)
        {
            currentDist = Vector3.Distance(pickupParent.position, pickupRB.position);
            currentSpeed = Mathf.SmoothStep(minSpeed, maxSpeed, currentDist / maxDistance);
            currentSpeed *= Time.fixedDeltaTime;
            Vector3 direction = pickupParent.position - pickupRB.position;
            pickupRB.velocity = direction.normalized * currentSpeed;
              //Rotation// 
           // lookRot = Quaternion.LookRotation(mainCamera.transform.position - pickupRB.position);
           // lookRot = Quaternion.Slerp(mainCamera.transform.rotation, lookRot, rotationSpeed * Time.fixedDeltaTime);
          //  pickupRB.MoveRotation(lookRot);
        }
    }
    //Release the object 
    public void BreakConnection()
    {
        pickupRB.constraints = RigidbodyConstraints.None;
        currentlyPickedUpObject = null;
        lookObject = null;
        physicsObject.pickedUp = false;
        currentDist = 0;
    }
    public void PickUpObject()

    {
        physicsObject = lookObject.GetComponentInChildren<PhysicsObjects>();
        currentlyPickedUpObject = lookObject;
        pickupRB = currentlyPickedUpObject.GetComponent<Rigidbody>();
        pickupRB.constraints = RigidbodyConstraints.FreezeRotation;
        physicsObject.playerInteractions = this;
    }

這是附加到物件的代碼：

 public float waitOnPickup = 0.2f;
    public float breakForce = 35f;
    [HideInInspector] public bool pickedUp = false;
    [HideInInspector] public PlayerInteractions playerInteractions;


    private void OnCollisionEnter(Collision collision)
    {
        if (pickedUp)
        {
            if (collision.relativeVelocity.magnitude > breakForce)
            {
                playerInteractions.BreakConnection();
            }

        }
    }

    //this is used to prevent the connection from breaking when you just picked up the object as it sometimes fires a collision with the ground or whatever it is touching
    public IEnumerator PickUp()
    {
        yield return new WaitForSecondsRealtime(waitOnPickup);
        pickedUp = true;

    }

這是物件檢查器的影像：

如何讓它準確地顯示我正在查看的物件？

uj5u.com熱心網友回復：

一個簡單的解決方法是如果 SphereCast 回傳 false，則設定lookObject為 null，因為這表明您不再查看有效物件。只需else lookObject = null;在 Update() 方法中添加到第一個 if 陳述句的末尾就可以了。

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