unity 双击 单击

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Events;
//============================================================
//支持中文，文件使用UTF-8编码
//@author      Adam
//@create      20220908
//@company     Adam
//
//@description:
//============================================================
namespace Adam
{
    public class InputSystem : MonoBehaviour
    {
        private bool isClick = false;
        private float lastClick = 0;
        private int clickCount = 0;
        private float timeCount = 0.2f;
        public UnityEvent onOneClick;
        public UnityEvent onDoubleClick;
        private void Start()
        {
         
        }
        private void Update()
        {
            if (Input.GetMouseButtonDown(0))
            {
                timeCount = 0.2f;
                if (Time.realtimeSinceStartup - lastClick < 0.2f)
                {
                    clickCount = 2;
                }
                else
                {
                    clickCount = 1;
                }
            }
            if (Input.GetMouseButtonUp(0))
            {
                isClick = false;
                lastClick = Time.realtimeSinceStartup;
            }
            if (!isClick)
            {
                timeCount -= Time.deltaTime;
                if (timeCount <= 0)
                {
                    if (clickCount == 2)
                    {
                        onDoubleClick.Invoke();
                    }
                    else if (clickCount == 1)
                    {
                        onOneClick.Invoke();
                    }
                    isClick = true;
                    clickCount = 0;
                }
            }
        }

    }
}