UGUI_冻结技能键盘点击触发

1.在某一张image图上添加Button组件，使其具有点击触发事件的功能；

2.outline组件

3.SkillItem脚本

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

public class SkillItem : MonoBehaviour {
    public float coldTime = 1;
    private Image filledImage;
    public KeyCode keycode;
    private float timer = 0;
    private bool isStartTimeer = false;
    // Use this for initialization
    void Start () {
        filledImage = transform.Find("FilledImage").GetComponent<Image>();
    }
    
    // Update is called once per frame
    void Update () {
        if (isStartTimeer)
        {
            timer += Time.deltaTime;
        }
        filledImage.fillAmount = (coldTime - timer) / coldTime;
        if (timer >= coldTime)
        {
            filledImage.fillAmount = 0;
            timer = 0;
            isStartTimeer = false;
        }

        if (Input.GetKeyDown(keycode))
        {
            isStartTimeer = true;
        }
    }
    public void OnClick(){
        isStartTimeer = true;
    }

}

Image类型为Filled；控制的参数为冻结图片中的组建Image中的fillAmount属性。