统一粒子不删除

Question

我尝试删除一个游戏对象（通电），但即使在我删除它之后粒子也会克隆自己。我该如何解决这个问题？

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

public class PowerUp : MonoBehaviour {

    public float multiplier = 1.4f;
    public float duration = 4f;

    public GameObject pickupEffect;

    private void OnTriggerEnter2D(Collider2D collision)
    {
        if (collision.CompareTag("Player"))
        {
           StartCoroutine (Pickup(collision));
        }
    }

    IEnumerator Pickup(Collider2D player)
    {
        Debug.Log("Power up picked up!");

        Instantiate(pickupEffect, transform.position, transform.rotation;

        PlayerStats stats = player.GetComponent<PlayerStats>();
        stats.health *= multiplier;

        GetComponent<SpriteRenderer>().enabled = false;
        GetComponent<Collider2D>().enabled = false;


        yield return new WaitForSeconds(duration);

        stats.health /= multiplier;

        Destroy(this);
    }
}

Answer 1

在协程结束时，将Destroy(this); 更改为Destroy(gameObject);

Destroy(this); 销毁 PowerUp 组件。而Destroy(gameObject); 会破坏整棵树。

---

还可以连续多次调用OnTriggerEnter2D，从而导致无休止的实例化。您可以在StartCoroutine 之前添加一个约束来防止这种情况发生。

private void OnTriggerEnter2D(Collider2D collision)
{
    if (collision.CompareTag("Player"))
    {
       if (!flag)
           StartCoroutine (Pickup(collision));
    }
}

IEnumerator Pickup(Collider2D player)
{
    flag = true;