Obi Fuild流体插件碰到碰撞体后销毁

using UnityEngine;
using System.Collections;
using System.Collections.Generic;
using Obi;

[RequireComponent(typeof(ObiSolver))]
public class CollisionEventHandler : MonoBehaviour {

    ObiSolver solver;

   public Collider killer;

    void Awake(){
        solver = GetComponent<Obi.ObiSolver>();
    }

    void OnEnable () {
        solver.OnCollision += Solver_OnCollision;
    }

    void OnDisable(){
        solver.OnCollision -= Solver_OnCollision;
    }
    
    void Solver_OnCollision (object sender, Obi.ObiSolver.ObiCollisionEventArgs e)
    {
        for(int i = 0;  i < e.contacts.Length; ++i)
       {
           if (e.contacts[i].distance < 0.001f)
           {

               Component collider;
               if (ObiCollider.idToCollider.TryGetValue(e.contacts[i].other,out collider)){

                   if (collider == killer){

                       ObiSolver.ParticleInActor pa = solver.particleToActor[e.contacts[i].particle];
                       ObiEmitter emitter = pa.actor as ObiEmitter;

                       if (emitter != null)
                           emitter.life[pa.indexInActor] = 0;
                       
                   }
               }
           }
       }
   }
}