Unity中EventTrigger使用

在Unity中，点击场景中的模型我们往往需要检测是否点击在了UI上，这时我们需要进行一系列的判断，往往效果还不好，因此我在场景中模型的点击也使用了EventTrigger,EventTrigger我们在UI上的使用比较常见，但是它也可以用于场景点击，并且能屏蔽点击到UI又响应了模型的点击事件，以下是点击事件的组件脚本

1using UnityEngine;
2using UnityEngine.EventSystems;
3public class EventTriggerListener : EventTrigger
4{
5    public delegate void VoidDelegate();
6    public delegate void EventDelegate(BaseEventData baseEventData);
7    public delegate void BoolDelegate(bool state);
8    public delegate void FloatDelegate(float delta);
9    public delegate void VectorDelegate(Vector2 delta);
10    public delegate void ObjectDelegate(GameObject obj);
11    public delegate void KeyCodeDelegate(KeyCode key);
12
13    public VoidDelegate onClick;
14    public EventDelegate onEventClick;
15    public VoidDelegate onDown;
16    public VoidDelegate onEnter;
17    public VoidDelegate onExit;
18    public VoidDelegate onUp;
19    public VoidDelegate onSelect;
20    public VoidDelegate onUpdateSelect;
21
22
23    static public EventTriggerListener Add(Transform transform)
24    {
25        EventTriggerListener listener = transform.GetComponent<EventTriggerListener>();
26        if (listener == null)
27            listener = transform.gameObject.AddComponent<EventTriggerListener>();
28        return listener;
29    }
30
31    public override void OnPointerClick(PointerEventData eventData)
32    {
33        if (onClick != null)
34        {
35            onClick();
36        }
37        if (onEventClick != null)
38        {
39            onEventClick(eventData);
40        }
41    }
42
43    public override void OnPointerDown(PointerEventData eventData)
44    {
45        if (onDown != null)
46            onDown();
47    }
48
49    public override void OnPointerEnter(PointerEventData eventData)
50    {
51        if (onEnter != null)
52            onEnter();
53    }
54
55    public override void OnPointerExit(PointerEventData eventData)
56    {
57        if (onExit != null)
58            onExit();
59    }
60
61    public override void OnPointerUp(PointerEventData eventData)
62    {
63        if (onUp != null)
64            onUp();
65    }
66
67    public override void OnSelect(BaseEventData eventData)
68    {
69        if (onSelect != null)
70            onSelect();
71    }
72
73    public override void OnUpdateSelected(BaseEventData eventData)
74    {
75        if (onUpdateSelect != null)
76            onUpdateSelect();
77    }
78}

使用方法，只需要在模型对象上挂在脚本，该脚本注册下上面的脚本事件。

1using System.Collections;
2using System.Collections.Generic;
3using UnityEngine;
4using UnityEngine.EventSystems;
5
6public class EnvironmentClick : MonoBehaviour
7{
8    private void Awake()
9    {
10        EventTriggerListener.Add(transform).onEventClick += OnGroundClick;
11    }
12   public void OnGroundClick(BaseEventData data)
13    {
14        if (Input.GetMouseButton(1)) return;
15        if (Input.GetMouseButton(2)) return;
16
17       //do something
18
19    } 
20    
21}