Unity实现鼠标双击与长按的检测

private float main_time;
public float click_time;
private float two_click_time;
private int count;

if (Input.GetMouseButton(0)){
 if (main_time == 0.0f){
  main_time = Time.time;
 }
 if (Time.time - main_time > 0.2f) {
  //长按时执行的动作放这里
 }
}
if (Input.GetMouseButtonUp(0))
  {
   if (Time.time - main_time < 0.2f)
   {//当鼠标抬起时，检测按下到抬起的时间，如果小于2.0f就判断为点击。
   
    if (two_twoClicks != 0 && Time.time - two_twoClicks < 0.2f)
    {
     count = 2;
    }
    else
    {
     count++;
     if (count == 1)
     {
      time = Time.time;
     }
    }
    if (count == 2
     && ((time != 0 && Time.time - time < 0.2f) || (two_twoClicks != 0 && Time.time - two_twoClicks < 0.2f)))
    {//如果两次点击事件小于0.2f就判断为双击
    //双击时执行的代码块
     count = 0;
    }    
    if (count == 2 && (Time.time - time > 0.2f || Time.time-two_twoClicks > 0.2f))
    {
     two_twoClicks = Time.time;
     count = 0;
    }
    main_time = 0.0f;
   }
   else
   {
    main_time = 0.0f;
   }
  }