团结粒子对碰撞的影响

Question

这是我第一次使用Unity，而我却无法使拾取物品中的粒子脱落。编码在C＃中。长话短说，粒子系统需要在玩家与拾取物品碰撞时开始工作。我经常运行项目或代码它不起作用我做错了什么？

using UnityEngine;
using System.Collections;
public class Particles : MonoBehaviour
{
    public ParticleSystem part;
    public ParticleCollisionEvent[] collisionEvents;
    void Start()
    {
        part = GetComponent<ParticleSystem>();
        collisionEvents = new ParticleCollisionEvent[16];
    }
    void OnParticleCollision(Particles other)
    {
        int safeLength = part.GetSafeCollisionEventSize();
        if (collisionEvents.Length < safeLength)
            collisionEvents = new ParticleCollisionEvent[safeLength];

        int numCollisionEvents = part.GetCollisionEvents(other, collisionEvents);
        Rigidbody rb = other.GetComponent<Rigidbody>();
        int i = 0;
        while (i < numCollisionEvents)
        {
            if (rb)
            {
                Vector3 pos = collisionEvents[i].intersection;
                Vector3 force = collisionEvents[i].velocity * 10;
                rb.AddForce(force);
            }
            i++;
        }
    }