unity 利用ugui 制作技能冷却效果

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI; public class SkillItem : MonoBehaviour { //冷却时间
public float coldTime = 2.0f; //定时器
private float timer = 0f; //前面的一张填充图片
private Image filedImage; //是否开始技能冷却
private bool isStartTimer = false;
// Use this for initialization
void Start () {
filedImage = transform.Find ("FilledImage").GetComponent<Image> ();
} // Update is called once per frame
void Update () {
//已经开始冷却
if (isStartTimer) {
timer += Time.deltaTime; //计算fillAmount
filedImage.fillAmount = (coldTime - timer) / coldTime;
if (timer >= coldTime) { //停止定时器
filedImage.fillAmount = 0;
timer = 0;
isStartTimer = false;
}
}
} public void OnClick()
{
isStartTimer = true;
}
}
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