unity鼠标双击

using System.Collections;using System.Collections.Generic;using UnityEngine;public class DoubleClickDemo : MonoBehaviour {    private Ray ray;    private RaycastHit hit;    private float time;    //private void OnGUI()    //{    //    DoubleClickActionOne();    //}    //private void Update()    //{    //    DoubleClickActionTwo();    //}    //方法一    private void DoubleClickActionOne()    {        if (Event.current.isMouse && Event.current.type == EventType.MouseDown && Event.current.clickCount == 2)        {            ray = Camera.main.ScreenPointToRay(Input.mousePosition);            if (Physics.Raycast(ray, out hit, 50))            {                print("double click");            }        }      }    //方法二    private void DoubleClickActionTwo()    {        if (IsDoubleClick(0.2f, ref time, 0))        {            ray = Camera.main.ScreenPointToRay(Input.mousePosition);            if (Physics.Raycast(ray, out hit, 50))            {                print("double click");            }        }    }    private bool IsDoubleClick(float offsetTime,ref float tim,int mouseIndex)    {        if (Input.GetMouseButtonDown(mouseIndex))        {            return IsDoubleClickTimer(offsetTime, ref tim);         }        return false;    }    private bool IsDoubleClickTimer(float offsetTime, ref float tim)    {        if (Time.time - tim < offsetTime)            return true;        else        {            tim = Time.time;            return false;        }    }}