Problem with counting front flips

I thought I have solved my problem to count a front flip but unfortunately that wasn't because I can't decrease it.

Here is the url from my last question about this: http://answers.unity3d.com/questions/1108288/problem-with-counting-front-flips.html

I want only count with +1 if the hero makes a full rotation from 360 - 0 and then decrease the count to 0 when the hero collides with a boost.

  using UnityEngine;
  using System.Collections;
  
  public class Flip : MonoBehaviour {
  
      public float flips = 0;
      public float fliptest;
      public float maxFlip = 12;
      public float deltaRotation = 0;
      public float currentRotation = 0;
      public float WindupRotation = 0;
  
      void Update () {
          deltaRotation = (currentRotation - transform.eulerAngles.z);
          currentRotation = transform.eulerAngles.z;
          
             if (deltaRotation < -180f) 
                 deltaRotation += 360f;
             if (deltaRotation > 180f) 
                 deltaRotation -= 360f;
             if (deltaRotation < 0)
                 deltaRotation = 0;
          
          WindupRotation += (deltaRotation);
          
          flips = WindupRotation / 360;

          //tried also this
          if(flips >= fliptest)
             {
                 fliptest++;
             }
          //
          
          if (flips >= maxFlip) {
              flips = maxFlip;
          }
      }
      
          void OnTriggerEnter2D(Collider2D coll){
         if (coll.gameObject.tag == "Boost") {
             fliptest = 0;
         }
     }
  }

I hope you guys can help me. Thanks a lot.