柔和开关粒子特效

如果直接开关gameobject，粒子开启关闭就会非常生硬，所以通过emission开关可以达到一个很柔和的效果

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

public class ParticleEnabledScript : MonoBehaviour
{
    public bool IsParticleOnenabled;
    bool onlyonce;
    void Start()
    {
        onlyonce = true;
    }
    void Update()
    {
        ParticleSystem[] psarray = GetComponentsInChildren<ParticleSystem>();
        for(int i = 0; i < psarray.Length; i++)
        {
            ParticleSystem psi = psarray[i];
            var psiemission = psi.emission;
            psiemission.enabled = IsParticleOnenabled;
            if(!IsParticleOnenabled)
            {
                onlyonce = true;
            }
            if(IsParticleOnenabled && onlyonce && psi.gameObject.activeSelf)
            {
                psi.Play();
                onlyonce = false;
            }
        }
    }
}

 挂在最外层粒子上就好