简介

想将EventSystem封装一下，手机端触控操作的手势合并一下
相关一些介绍以及思路在我的这篇文字里面：EventSystem

UIEventMgr

总的事件分配管理

using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class UIEventMgr : MonoBehaviour {

    #region PointerEvent

    /// <summary>
    /// Enter
    /// </summary>
    /// <param name="obj"></param>
    /// <param name="func"></param>
    public static void AddEnter(GameObject obj, DeleGameObject func)
    {
        var handle = obj.GetComponent<PointerEnterHandler>() ?? obj.AddComponent<PointerEnterHandler>();
        handle.callback += func;
    }

    public static void RemoveEnter(GameObject obj)
    {
        var handle = obj.GetComponent<PointerEnterHandler>();
        if (handle == null) return;
        handle.callback = null;
        Destroy(handle);
    }

    /// <summary>
    /// Exit
    /// </summary>
    /// <param name="obj"></param>
    /// <param name="func"></param>
    public static void AddExit(GameObject obj, DeleGameObject func)
    {
        var handle = obj.GetComponent<PointerExitHandler>() ?? obj.AddComponent<PointerExitHandler>();
        handle.callback += func;
    }

    public static void RemoveExit(GameObject obj)
    {
        var handle = obj.GetComponent<PointerExitHandler>();
        if (handle == null) return;
        handle.callback = null;
        Destroy(handle);
    }

    /// <summary>
    /// Down
    /// </summary>
    /// <param name="obj"></param>
    /// <param name="func"></param>
    public static void AddDown(GameObject obj, DeleGameObject func)
    {
        var handle = obj.GetComponent<PointerDownHandler>() ?? obj.AddComponent<PointerDownHandler>();
        handle.callback += func;
    }

    public static void RemoveDown(GameObject obj)
    {
        var handle = obj.GetComponent<PointerDownHandler>();
        if (handle == null) return;
        handle.callback = null;
        Destroy(handle);
    }

    /// <summary>
    /// Up
    /// </summary>
    /// <param name="obj"></param>
    /// <param name="func"></param>
    public static void AddUp(GameObject obj, DeleGameObject func)
    {
        var handle = obj.GetComponent<PointerUpHandler>() ?? obj.AddComponent<PointerUpHandler>();
        handle.callback += func;
    }
    public static void RemoveUp(GameObject obj)
    {
        var handle = obj.GetComponent<PointerUpHandler>();
        if (handle == null) return;
        handle.callback = null;
        Destroy(handle);
    }

    #endregion

    #region ClickEvent

    /// <summary>
    /// Click
    /// </summary>
    /// <param name="obj"></param>
    /// <param name="func"></param>
    public static void AddClick(GameObject obj, DeleGameObject func)
    {
        var handle = obj.GetComponent<PointerClickHandler>() ?? obj.AddComponent<PointerClickHandler>();
        handle.callback += func;
    }

    public static void RemoveClick(GameObject obj)
    {
        var handle = obj.GetComponent<PointerClickHandler>();
        if (handle == null) return;
        handle.callback = null;
        Destroy(handle);
    }

    /// <summary>
    /// DoubleClick
    /// </summary>
    /// <param name="obj"></param>
    /// <param name="func"></param>
    public static void AddDoubleClick(GameObject obj, DeleGameObject func)
    {
        var handle = obj.GetComponent<DoubleClickHandle>() ?? obj.AddComponent<DoubleClickHandle>();
        handle.callback += func;
    }

    public static void RemoveDoubleClick(GameObject obj)
    {
        var handle = obj.GetComponent<DoubleClickHandle>();
        if (handle == null) return;
        handle.callback = null;
        Destroy(handle);
    }
    #endregion

    #region LongPressEvent

    /// <summary>
    /// LongPress
    /// </summary>
    /// <param name="obj"></param>
    /// <param name="func"></param>
    public static void AddLongPress(GameObject obj, DeleGameObject func)
    {
        AddLongPress(obj, 2, func);
    }

    public static void AddLongPress(GameObject obj, float timeInterval,DeleGameObject func)
    {
        var handle = obj.GetComponent<PointerLongPressHandle>() ?? obj.AddComponent<PointerLongPressHandle>();
        handle.callback += func;
        handle.timeInterval = timeInterval;
    }

    public static void RemoveLongPress(GameObject obj)
    {
        var handle = obj.GetComponent<PointerLongPressHandle>();
        if (handle == null) return;
        handle.callback = null;
        Destroy(handle);
    }

    #endregion

    #region ZoomEvent

    /// <summary>
    /// Zoom
    /// </summary>
    /// <param name="obj"></param>
    /// <param name="func"></param>
    public static void AddZoom(GameObject obj, DeleFloat func)
    {
        AddZoom(obj,1, func);
    }

    public static void AddZoom(GameObject obj, float scaleFactor, DeleFloat func)
    {
        var handle = obj.GetComponent<ZoomHandle>() ?? obj.AddComponent<ZoomHandle>();
        handle.callback += func;
        handle.factor = scaleFactor;
    }

    public static void RemoveZoom(GameObject obj)
    {
        var handle = obj.GetComponent<ZoomHandle>();
        if (handle == null) return;
        handle.callback = null;
        Destroy(handle);
    }

    #endregion

    #region DragEvent

    /// <summary>
    /// DragBegin
    /// </summary>
    /// <param name="obj"></param>
    /// <param name="func"></param>
    public static void AddDragBegin(GameObject obj, DeleGameObject func)
    {
        var handle = obj.GetComponent<DragBeginHandler>() ?? obj.AddComponent<DragBeginHandler>();
        handle.callback += func;
    }

    public static void RemoveDragBegin(GameObject obj)
    {
        var handle = obj.GetComponent<DragBeginHandler>();
        if (handle == null) return;
        handle.callback = null;
        Destroy(handle);
    }

    /// <summary>
    /// Drag
    /// </summary>
    /// <param name="obj"></param>
    /// <param name="func"></param>
    public static void AddDrag(GameObject obj, DeleGameObject func)
    {
        var handle = obj.GetComponent<DragHandler>() ?? obj.AddComponent<DragHandler>();
        handle.callback += func;
    }

    public static void RemoveDrag(GameObject obj)
    {
        var handle = obj.GetComponent<DragHandler>();
        if (handle == null) return;
        handle.callback = null;
        Destroy(handle);
    }

    /// <summary>
    /// DragEnd
    /// </summary>
    /// <param name="obj"></param>
    /// <param name="func"></param>
    public static void AddDragEnd(GameObject obj, DeleGameObject func)
    {
        var handle = obj.GetComponent<DragEndHandler>() ?? obj.AddComponent<DragEndHandler>();
        handle.callback += func;
    }

    public static void RemoveDragEnd(GameObject obj)
    {
        var handle = obj.GetComponent<DragEndHandler>();
        if (handle == null) return;
        handle.callback = null;
        Destroy(handle);
    }

    #endregion

    #region DropEvent

    /// <summary>
    /// Drop
    /// </summary>
    /// <param name="obj"></param>
    /// <param name="func"></param>
    public static void AddDrop(GameObject obj, DeleGameObject func)
    {
        var handle = obj.GetComponent<DropHandler>() ?? obj.AddComponent<DropHandler>();
        handle.callback += func;
    }

    public static void RemoveDrop(GameObject obj)
    {
        var handle = obj.GetComponent<DropHandler>();
        if (handle == null) return;
        handle.callback = null;
        Destroy(handle);
    }

    #endregion

}

Delegates

委托定义

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public delegate void DeleGameObject(GameObject obj);

public delegate void DeleFloat(float f);

public delegate void DeleBool(bool b);

public delegate void DeleInt(int i);

public delegate void DeleFloatObj(GameObject obj,float f);

public delegate void DeleIntObj(GameObject obj,int i);

PointerEnterHandle

进入事件

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.EventSystems;

public class PointerEnterHandler : MonoBehaviour, IPointerEnterHandler
{
    public DeleGameObject callback;

    public void OnPointerEnter(PointerEventData eventData)
    {
        callback?.Invoke(eventData.pointerEnter);
    }
}

cube

事件处理

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.EventSystems;

public class cube : MonoBehaviour
{
    void Start ()
    {
        UIEventMgr.AddDoubleClick(gameObject, OnDoubleClick);
        UIEventMgr.AddClick(gameObject, OnClick);
        
        //Invoke("RemoveEvent", 5);
    }

    private void OnDoubleClick(GameObject obj)
    {
        Debug.LogError(obj.name);
    }

    void RemoveEvent()
    {
        UIEventMgr.RemoveClick(gameObject);
        UIEventMgr.RemoveDoubleClick(gameObject);
    }

    private void OnClick(GameObject obj)
    {
        Debug.LogError("cube_click");
    }
}

需要多添加一个层级就多加一个层就好