Unity之XR Interaction Toolkit | IPointerDownHandler问题

版本

XR Interaction Toolkit 3.0.7

问题

场景中两个cube模型，一个显示一个隐藏，模型碰撞体重叠。

手柄射线指向重叠区域，按下扳机键，两个模型都会触发点击事件。

测试

点击模型

csharp 复制代码

using System;
using UnityEngine;
using UnityEngine.EventSystems;

public class ClickModel : MonoBehaviour, IPointerDownHandler, IPointerUpHandler,IPointerClickHandler
{
    public event Action OnDown;
    public event Action OnUp;

    public event Action OnClick;

    public void OnPointerClick(PointerEventData eventData)
    {
        OnClick?.Invoke();
    }

    public void OnPointerDown(PointerEventData eventData)
    {
        OnDown?.Invoke();
    }

    public void OnPointerUp(PointerEventData eventData)
    {
        OnUp?.Invoke();
    }
}

测试

csharp 复制代码

using UnityEngine;
public class TestClickModel : MonoBehaviour
{
    [SerializeField] ClickModel cube1;
    [SerializeField] ClickModel cube2;

    [Header("交互类型")]
    [SerializeField] InteractionType interactionType;

    private void Awake()
    {
        switch (interactionType)
        {
            case InteractionType.Down:
                cube1.OnDown += Cube1Handler;
                cube2.OnDown += Cube2Handler;
                break;
            case InteractionType.Up:
                cube1.OnUp += Cube1Handler;
                cube2.OnUp += Cube2Handler;
                break;
            case InteractionType.Click:
                cube1.OnClick += Cube1Handler;
                cube2.OnClick += Cube2Handler;
                break;
        }

        cube1.gameObject.SetActive(true);
        cube2.gameObject.SetActive(false);
    }

    private void Cube1Handler()
    {
        Debug.Log(("触发对象：" + cube1, Time.renderedFrameCount));
        cube1.gameObject.SetActive(false);
        cube2.gameObject.SetActive(true);
    }

    private void Cube2Handler()
    {
        Debug.Log(("触发对象：" + cube2, Time.renderedFrameCount));
        cube1.gameObject.SetActive(true);
        cube2.gameObject.SetActive(false);
    }

    private void OnDestroy()
    {
        switch (interactionType)
        {
            case InteractionType.Down:
                cube1.OnDown -= Cube1Handler;
                cube2.OnDown -= Cube2Handler;
                break;
            case InteractionType.Up:
                cube1.OnUp -= Cube1Handler;
                cube2.OnUp -= Cube2Handler;
                break;
            case InteractionType.Click:
                cube1.OnClick -= Cube1Handler;
                cube2.OnClick -= Cube2Handler;
                break;
        }
    }
}


public enum InteractionType
{
    Down,
    Up,
    Click,
}

测试结果

Down模式下，点击重叠区域，隐藏模型显示后会触发接口事件；

Up和Click模式下，点击重叠区域，模型显示后不会触发接口。

结论

模型重叠使用Up和Click接口触发点击；不重叠Down,Up,Click接口都可以。