unity3d之技能栏冷却

绑定在按钮上的脚本

 using UnityEngine;
 using System.Collections;
 using UnityEngine.UI;
 public class CdCover : MonoBehaviour {

     public float CDtime = ;

     private Image cover;
     private Text count;

     private float LeftTime;
     private bool isReady=true ;
     void Start ()
     {
         cover = transform.FindChild("cover").GetComponent<Image>();
         count = transform.FindChild("Text").GetComponent<Text>();
         InitSkill();
     }

     void Update ()
     {
         CheckCD();
     }
     void InitSkill()
     {
         if (isReady)
         {
             cover.fillAmount = ;
             count.text = "";
         }
     }
     void CheckCD()
     {
         if (isReady == false)
         {
             if (LeftTime > )
             {
                 LeftTime -= Time.deltaTime;
                 cover.fillAmount = LeftTime / CDtime;
                 count.text = ((int)LeftTime).ToString();
             }

         }
         else
         {
             isReady = true;
             cover.fillAmount = ;
             count.text = "";
         }

     }
     public void OnClick()
     {
         if (isReady)
         {
             isReady = false;
             LeftTime = CDtime;
         }

     }
 }

按钮下包含的控件

      

其中cover的改成