移动端单双击检测

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class CSTest : MonoBehaviour {
    private int t = 1;private bool state = false;
    void Update () {
        if (Input.touchCount > 0)
        {
            if (Input.touches[0].phase == TouchPhase.Began)
            {
                if (!state)
                {
                    StartCoroutine(CountDown());
                    state = true;
                }
                t++;
            }
        }
    }
    IEnumerator CountDown()
    {
        yield return new WaitForSeconds(0.2f);
        if (t == 2)
        {
            Debug.Log("单击");
        }
        else
        {
            Debug.Log("双击");
        }
        t = 1;
        state = false;
    }
}