btn按鈕事件
1.用Delegate 和 Event 來定義一個通用類來處理事件 (觀察者模式)
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using UnityEngine.EventSystems;
public class NewBehaviourScript : MonoBehaviour, IPointerClickHandler, IPointerEnterHandler, IPointerExitHandler
{
// 定義事件代理
public delegate void UIEventProxy(GameObject gb);
// 滑鼠點選事件
public event UIEventProxy OnClick;
// 滑鼠進入事件
public event UIEventProxy OnMouseEnter;
// 滑鼠滑出事件
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.定義btn的操作移動的基本屬性：
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;
}
}
//定義A D W S鍵盤控制
float h = Input.GetAxis("Horizontal");
float v = Input.GetAxis("Vertical");
//控制旋轉左右
Objects.Rotate(Vector3.up * HSpeed * h * Time.deltaTime);
//控制前後移動
Objects.Translate(Vector3.forward * VSpeed * v * Time.deltaTime);
}
}
注：此程式碼1為委託事件定義，2是新增在btn上的，按鈕持續按下的一種寫法，根據事件與監聽修改而來，如有雷同或更讚的程式碼，請評論下方....