Raycast同时点击2个对象

Question

我最近开发了Unity，并且使用Raycast有问题。 我创建了3个脚本：

• Interactor：挂在玩家中，它管理所有的raycast功能
• 互动对象：挂在需要动画
• 互动式播放的对象上：挂在需要销毁的对象上，

一切都起作用，唯一的问题是当动画的动画游戏对象发生（在我的情况下，游戏对象是枕头），另一个游戏对象（在枕头下）在动画开始的同时被销毁。 我的目标是首先移动枕头，然后单击要销毁的游戏对象，我该怎么办？ 预先感谢您的帮助

Interactor.cs

public class Interactor : MonoBehaviour
{
    [SerializeField]
    private float _interctRange;
    private InteractionObject _interactObject;
    private InteractionRaycast _interactionRaycast;
    private Camera _camera;
    private RaycastHit _hit;
// Start is called before the first frame update
void Start()
{
    _camera = Camera.main;
}

// Update is called once per frame
void Update()
{
    if (Input.GetButton("Fire1"))
    {
        Physics.Raycast(Camera.main.transform.position, Camera.main.transform.forward, out _hit, _interctRange);
        if (_hit.transform)
        {
            _interactObject = _hit.transform.GetComponent<InteractionObject>();
            
        }
        if (_interactObject)
        {
            _interactObject.PerfomAction();
            
        }
   
    }
}
}

contractactionObject.cs

public class InteractionObject : MonoBehaviour
{
    [SerializeField]
    private Vector3 _openPosition, _closePosition;
    [SerializeField]
    private float _animationTime;
    private Hashtable _iTweenArgs;
    [SerializeField]
    public  bool _isOpen;

// Start is called before the first frame update
void Start()
{
    _iTweenArgs = iTween.Hash();
    _iTweenArgs.Add("position", _openPosition);
    _iTweenArgs.Add("time", _animationTime);
    _iTweenArgs.Add("islocal", true);
}

public void PerfomAction()
{
    if (Input.GetButton("Fire1"))
    {
        if (_isOpen)
        {
            _iTweenArgs["position"] = _closePosition;
        }
        else
        {
            _iTweenArgs["position"] = _openPosition;

        }

        _isOpen = !_isOpen;

        iTween.MoveTo(gameObject, _iTweenArgs);


    }
}



} 

conteractactraycast.cs

public class InteractionRaycast : MonoBehaviour
{
    [SerializeField]
    private float _range;
    Ray _myRay;
    RaycastHit _hit;

// Update is called once per frame
void Update()
{
    if (Input.GetButton("Fire1"))
    {
        Physics.Raycast(Camera.main.transform.position, Camera.main.transform.forward, out _hit, _range);
        if (_hit.transform)
        {
            Destroy(gameObject);
        }


    }

}
}

Answer 1

提示：使用raycastall（）并根据条件过滤所需的对象。

尽管您首先要注意@derhugo的答案，但它可能会帮助您解决问题。它指出了许多方面，您需要在代码中改进。

Answer 2

您的互动播放将销毁此自己的gameObject，无论您确切地击中什么，它都可以完全算了。

您要么要额外检查一下，例如

if (Input.GetButton("Fire1"))
{
    var ray = _camera.ViewportPointToRay(new Vector3(0.5f, 0.5f));
    if(Physics.Raycast(ray, out var hit, _interctRange))
    {
        // Is this actually the object that was hit?
        if(hit.transform == transform)
        {
            Destroy(gameObject);
        }
    }
}

---

- 通常我会这样做 - 而不是在您可以与您交互的每个对象上都有这样的组件并拍摄数百个冗余射线播，我宁愿在您的player对象上有一个组件，拍摄一个射线广播，并与您击中的任何内容进行互动。

您的两个目标对象都可以具有常见的接口

public interface IInteractionObject
{
    void PerfomAction();
}

这意味着两种类型都需要实现一个称为cormalaction没有参数的方法。

而是直接与之互动，

public class Interactor : MonoBehaviour
{
    [SerializeField]
    private float _interctRange;
   
    private Camera _camera;

    // Start is called before the first frame update
    void Start()
    {
        _camera = Camera.main;
    }

    // Update is called once per frame
    void Update()
    {
        if (Input.GetButton("Fire1"))
        {
            var ray = _camera.ViewportPointToRay(new Vector3(0.5f, 0.5f));
            // was something hit at all? => Check the API and return values of methods!
            if(Physics.Raycast(ray, out var hit, _interctRange))
            {
                // Did we hit an IInteractionObject
                if(hit.transform.TryGetComponent<IInteractionObject>(out var interactable))
                {
                    // This class has no idea what exactly it is interacting with and doesn't need to know
                    interactable.PerfomAction();
                }
            }
        }
    }
}

然后您有不同的实现

public class AnimatedInteractionObject : MonoBehaviour, IInteractionObject
{
    [SerializeField] private Vector3 _openPosition;
    [SerializeField] private Vector3 _closePosition;
    [SerializeField] private float _animationTime;
    [SerializeField] public bool _isOpen;

    private Hashtable _iTweenArgs;

    private void Start()
    {
        _iTweenArgs = iTween.Hash();
        _iTweenArgs.Add("position", _openPosition);
        _iTweenArgs.Add("time", _animationTime);
        _iTweenArgs.Add("islocal", true);
    }
    
    public void PerfomAction()
    {
        _isOpen = !_isOpen;

        // use ternary makes it easier to read
        _iTweenArgs["position"] = _isOpen ? _openPosition : _closePosition;
    
        iTween.MoveTo(gameObject, _iTweenArgs);
    }
} 

：

public class DestroyInteractionObject : MonoBehaviour, IInteractionObject
{
    public void PerfomAction()
    {
        // This is only called by the Interactor 
        // it already does a key and raycast check so no need to do that here 
        Destroy(gameObject);
    }
}