Unity实现技能冷却

效果如下：

using BoxWorldServer;
using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

public class PlayerSkillEffect : MonoBehaviour
{

    //技能按钮  
    private Button redBtn;
    private Button blueBtn;
    private Button bleedBtn;
    private Button runBtn;
    //技能剩余时间显示
    private Text redBtnCDTimeText;
    private Text blueBtnCDTimeText;
    private Text bleedBtnCDTimeText;
    private Text runBtnCDTimeText;
    //技能时间
    private float redBtnCDTime = 3f;
    private float blueBtnCDTime = 3f;
    private float bleedBtnCDTime = 10f;
    private float runBtnCDTime = 5f;

    //累加器
    private float redBtnTimes = 0f;
    private float blueBtnTimes = 0f;
    private float bleedBtnTimes = 0f;
    private float runBtnTimes = 0f;
    //是否遮罩
    [HideInInspector]
    public bool redBtnIsOn = false;
    [HideInInspector]
    public bool blueBtnIsOn = false;
    [HideInInspector]
    public bool bleedBtnIsOn = false;
    [HideInInspector]
    public bool runBtnIsOn = false;

    private void Awake()
    {
        //技能相关UI
        redBtn = GameObject.Find("RedBtn").GetComponent<Button>();
        blueBtn = GameObject.Find("BlueBtn").GetComponent<Button>();
        bleedBtn = GameObject.Find("BleedBtn").GetComponent<Button>();
        runBtn = GameObject.Find("RunBtn").GetComponent<Button>();
        redBtnCDTimeText = GameObject.Find("redBtnCDTimeText").GetComponent<Text>();
        blueBtnCDTimeText = GameObject.Find("blueBtnCDTimeText").GetComponent<Text>();
        bleedBtnCDTimeText = GameObject.Find("bleedBtnCDTimeText").GetComponent<Text>();
        runBtnCDTimeText = GameObject.Find("runBtnCDTimeText").GetComponent<Text>();

        //绑定按钮事件
        redBtn.onClick.AddListener(OnRedBtnClick);
        blueBtn.onClick.AddListener(OnBlueBtnClick);
        bleedBtn.onClick.AddListener(OnBleedBtnClick);
        runBtn.onClick.AddListener(OnRunBtnClick);

    }

    private void Update()
    {
        BtnIsOn();
        TriggerBtnInput();
    }
    //判断按钮是否冷却
    public void BtnIsOn()
    {
        if (redBtnIsOn)
        {
            redBtnTimes += Time.deltaTime;
            redBtn.image.fillAmount = redBtnTimes / redBtnCDTime;
            redBtnCDTimeText.text = Math.Round(redBtnCDTime - redBtnTimes, 1).ToString();
            if (redBtnTimes >= redBtnCDTime)
            {
                redBtnCDTimeText.text = null;
                redBtnIsOn = false;
                redBtn.image.fillAmount = 1;
                redBtnTimes = 0f;
                redBtn.interactable = true;
            }
        }
        if (blueBtnIsOn)
        {
            blueBtnTimes += Time.deltaTime;
            blueBtn.image.fillAmount = blueBtnTimes / blueBtnCDTime;
            blueBtnCDTimeText.text = Math.Round(blueBtnCDTime - blueBtnTimes, 1).ToString();
            if (blueBtnTimes >= blueBtnCDTime)
            {
                blueBtnCDTimeText.text = null;
                blueBtnIsOn = false;
                blueBtn.image.fillAmount = 1;
                blueBtnTimes = 0f;
                blueBtn.interactable = true;
            }
        }
        if (bleedBtnIsOn)
        {
            bleedBtnTimes += Time.deltaTime;
            bleedBtn.image.fillAmount = bleedBtnTimes / bleedBtnCDTime;
            bleedBtnCDTimeText.text = Math.Round(bleedBtnCDTime - bleedBtnTimes, 1).ToString();
            if (bleedBtnTimes >= bleedBtnCDTime)
            {
                bleedBtnCDTimeText.text = null;
                bleedBtnIsOn = false;
                bleedBtn.image.fillAmount = 1;
                bleedBtnTimes = 0f;
                bleedBtn.interactable = true;
            }
        }
        if (runBtnIsOn)
        {
            runBtnTimes += Time.deltaTime;
            runBtn.image.fillAmount = runBtnTimes / runBtnCDTime;
            runBtnCDTimeText.text = Math.Round(runBtnCDTime - runBtnTimes, 1).ToString();
            if (runBtnTimes >= runBtnCDTime)
            {
                runBtnCDTimeText.text = null;
                runBtnIsOn = false;
                runBtn.image.fillAmount = 1;
                runBtnTimes = 0f;
                runBtn.interactable = true;
            }
        }
    }
    //通过键盘按键释放技能
    public void TriggerBtnInput()
    {
        //技能播放
        if (Input.GetKey(KeyCode.Q))
        {
            OnRedBtnClick();
        }
        else if (Input.GetKey(KeyCode.E))
        {
            OnBlueBtnClick();
        }
        else if (Input.GetKey(KeyCode.R))
        {
            OnBleedBtnClick();
        }
        else if (Input.GetKey(KeyCode.T))
        {
            OnRunBtnClick();
        }
        //按下C键打开关闭聊天面板
        if(Input.GetKey(KeyCode.C))
        {
            fightPanel.OnShowChatPanelClick();
        }
    }
    //技能按钮事件
    public void OnRedBtnClick()
    {
        redBtnIsOn = true;
        redBtn.interactable = false;
    }
    public void OnBlueBtnClick()
    {
        blueBtnIsOn = true;
        bleedBtn.interactable = false;
    }
    public void OnBleedBtnClick()
    {
        bleedBtnIsOn = true;
        bleedBtn.interactable = false;
    }
    public void OnRunBtnClick()
    {
        runBtnIsOn = true;
        runBtn.interactable = false;
    }


}