using UnityEngine;
using System.Collections;

public class Enemy : MonoBehaviour  
{
  void OnTriggerEnter(Collider SonicEnemy)
  {
   GetComponent<SonicCollision>().ring;
   if(SonicEnemy.gameObject.name == "Enemy")
   {
    ring = 0;
    Debug.Log("ring");
   }
  }
}

using UnityEngine;
using System.Collections;

public class SonicCollision: MonoBehaviour
{
   
  void OnTriggerEnter(Collider SonicCollision)
  {
   int ring = 0;
   if(SonicCollision.gameObject.name == "Ring")
   {
    Destroy(SonicCollision.gameObject);
       ring ++;
    Debug.Log(ring);
   }
  }
}