btn按钮事件

1.用Delegate 和 Event 来定义一个通用类来处理事件 (观察者模式)

using System.Collections;

using System.Collections.Generic;

using UnityEngine;

using UnityEngine.UI;

using UnityEngine.EventSystems;

public class NewBehaviourScript : MonoBehaviour, IPointerClickHandler, IPointerEnterHandler, IPointerExitHandler

{

// 定义事件代理

public delegate void UIEventProxy(GameObject gb);

// 鼠标点击事件

public event UIEventProxy OnClick;

// 鼠标进入事件

public event UIEventProxy OnMouseEnter;

// 鼠标滑出事件

public event UIEventProxy OnMouseExit;

public void OnPointerClick(PointerEventData eventData)

{

if (OnClick != null)

OnClick(this.gameObject);

}

public void OnPointerEnter(PointerEventData eventData)

{

if (OnMouseEnter != null)

OnMouseEnter(this.gameObject);

}

public void OnPointerExit(PointerEventData eventData)

{

if (OnMouseExit != null)

OnMouseExit(this.gameObject);

}

}

2.定义btn的操作移动的基本属性：

using System.Collections;

using System.Collections.Generic;

using UnityEngine;

using UnityEngine.UI;

public class btn : MonoBehaviour {

public float HSpeed;

public float VSpeed;

public int  btnName;

public Transform Objects;

bool IsWalk=false;

void Start () {

Button btn = this.GetComponent<Button> ();

NewBehaviourScript btnListener = btn.gameObject.AddComponent<NewBehaviourScript>();

btnListener.OnClick += delegate(GameObject gb) {

Debug.Log(gb.name + " OnClick");

IsWalk = true;

};

btnListener.OnMouseEnter += delegate(GameObject gb) {

// Debug.Log(gb.name + " OnMouseEnter");

};

btnListener.OnMouseExit += delegate(GameObject gb) {

Debug.Log(gb.name + " OnMOuseExit");

IsWalk = false;

};

}

void Update()

{

if(IsWalk)

{

switch (btnName)

{

case 1: Objects.Translate(Vector3.forward * -VSpeed * Time.deltaTime);

break;

case 2: Objects.Translate(Vector3.forward * VSpeed * Time.deltaTime);

break;

case 3: Objects.Rotate(Vector3.up * -HSpeed * Time.deltaTime);

break;

case 4: Objects.Rotate(Vector3.up * HSpeed * Time.deltaTime);

break;

default:

break;

}

}

//定义A D W S键盘控制

float h = Input.GetAxis("Horizontal");

float v = Input.GetAxis("Vertical");

//控制旋转左右

Objects.Rotate(Vector3.up * HSpeed * h * Time.deltaTime);

//控制前后移动

Objects.Translate(Vector3.forward * VSpeed * v * Time.deltaTime);

}

}

注：此代码1为委托事件定义，2是添加在btn上的，按钮持续按下的一种写法，根据事件与监听修改而来，如有雷同或更赞的代码，请评论下方....