PARTICLE SYSTEM NEITHER EMITTING NOR PLAYING (BY SCRIPT)

[Uhop1903]

I have a script called “psStarter” attached to the main camera.
This script instantiates a gameobject called “ng” from the Resources folder.
“ng” has a particle system attached as a component.
I want the PS to emit via script once “ng” is instantiated in the scene.
So far I came up with the script below :

public class psStarter : MonoBehaviour
{


    private ParticleSystem bld;
    public GameObject ng;


    void Start()
    {

        Instantiate(Resources.Load("ng"), new Vector3(0f, 0f, 0f), Quaternion.identity);
        bld = ng.GetComponent(typeof(ParticleSystem)) as ParticleSystem;
        Debug.Log("Système de particules récupéré: " + bld);

        var main = bld.emission;
        Debug.Log("Etat du module principal: " + main.enabled);
        Debug.Log("Etat de l'émission du SP: " + bld.isEmitting);

        bld.Play();
        Debug.Log("Etat du système de particules: " + bld.isPlaying);



    }
    void Update()
    {

    }

}

This script gives the following result according to the Debug.Logs inserted in it :

• The script gets the PS ok.
• The main module is enabled and “ng” instantiated but the problem is the PS does not emit and does not play.

I have been trying to peck different solutions both from the internet and from the API manual but no result.
I must be missing something, or is Unity reference manuel maybe out of date? I have Unity 2018.2.17f1.

Screenshots :

Hierarchy (showing “ng” instantiated) :

Inspector : showing “ng” and its components, including PS :

[nikigmi]

use:
ng = Instantiate(Resources.Load(“ng”), new Vector3(0f, 0f, 0f), Quaternion.identity);
instead of
Instantiate(Resources.Load(“ng”), new Vector3(0f, 0f, 0f), Quaternion.identity);

Does it not throw a NullReferenceException in the log at this line:
bld = ng.GetComponent(typeof(ParticleSystem)) as ParticleSystem;
or at this line
bld.Play();

[Uhop1903]

Thanks for your first answers guys but no progress has been made.
Deeeds you can find enclosed a new screenshot showing the emission rollout, if it helps.
As far as I understood you I tried to add a callbacktest script attached to “ng” but it seems the particle system does not stop as there is no Debug.Log “PS has stopped” displayed :

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

public class CallbackTest : MonoBehaviour {

    public void OnParticleSystemStopped()
    {
        Debug.Log("PS has stopped");
    }
}

• • • • • • -
            

nikigmi I tried your suggestion of using ng = Instantiate(Resources.Load(“ng”), new Vector3(0f, 0f, 0f), Quaternion.identity); as a result I get the following error notification “Cannot implicitly convert type’UnityEngine.Object’ to ‘UnityEngine.GameObject’. An explicit conversion exists (are you missing a cast?)”.

[Deeeds]

Try changing this:

 bld = ng.GetComponent(typeof(ParticleSystem)) as ParticleSystem;

to this:

bld = ng.GetComponent<ParticleSystem>();

the fact that the callback is never getting called seems to indicate the particle system is never starting, hence never ending, so not getting a chance to call that callback.