How to store array value with GetComponent<ParticleSystem> ().emission.rateOverTime?

Hi, I know how to set up the rateOverTime of ParticleSystem and its other properties, but I don't know how to store the initial value of rateOverTime to other variables before I turn them to zero, so I can toggle them.



Set ParticleSystem > emission > rateOverTime to zero:

Code (CSharp):

1. /* ProjectileController.cs */
2. void OnCollisionEnter2D (Collision2D other) //void OnCollisionStay2D (Collision2D other)
3. {
4.     if (!enable) return;
5.    
6.     if (other.gameObject.CompareTag ("Enemy"))
7.     {
8.         foreach (ParticleSystem thisBulletTail in bulletTail)
9.         {
10.             var em = thisBulletTail.GetComponent<ParticleSystem> ().emission;
11.             em.rateOverTime = 0f;
12.         }
13.   }
14. }

But first, I want their initial value to be stored in array (with float?) in Start ()...



How can I do that if their type is like this:

Code (CSharp):

1. var PS_1 = bulletTail[0].GetComponent<ParticleSystem> ();
2. Debug.Log ("ParticleSystem: " + PS_1.GetType());
3.  
4. var PS_2 = bulletTail[0].GetComponent<ParticleSystem> ().emission;
5. Debug.Log ("PS.emission: " + PS_2.GetType());
6.  
7. var PS_3 = bulletTail[0].GetComponent<ParticleSystem> ().emission.rateOverTime;
8. Debug.Log ("PS.emission.rateOverTime: " + PS_3.GetType());
9.  
10. var PS_4 = bulletTail[0].GetComponent<ParticleSystem> ().emission.rateOverDistance;
11. Debug.Log ("PS.emission.rateOverDistance: " + PS_4.GetType());

So this won't do:

Code (CSharp):

1. float[] rateOverDistance;

And there's no:

Code (csharp):

1. var[] rateOverDistance;

Is there easy way to do this? I can't just deactivate the whole object, because the particle effects will also be hidden. I just plan to deactivate some components: SpriteRenderer, ProjectileController, and ParticleSystem's emission's rateOverDistance, and toggle them as I pooling them to recycle. Not destroying or deactivate the gameObject.

Thank you!

 

For any of those you can "save" them by simply assigning them to a local instance of that same structure, a MinMaxCurve in the cases you cited above.

Code (csharp):

1. ParticleSystem.MinMaxCurve savedCurve = em.rateOverTime;

And obviously, just assign it back when you want to restore it.

 

Thank you, Kurt-Dekker...

I see, it does not give me an error:

/* ProjectileController.cs */

Code (CSharp):

1. public ParticleSystem[] bulletTail;
2. private ParticleSystem.MinMaxCurve[] em;
3.  
4. public ParticleSystem.MinMaxCurve GetInitialEmissionROT (int index)
5. {
6.     if (index >= 0 && index < em.Length)
7.         return em[index];
8.     else
9.         return em[0];
10. }
11.  
12. void Start ()
13. {
14.     em = new ParticleSystem.MinMaxCurve[bulletTail.Length];
15.     for (int i = 0; i < bulletTail.Length; i++)
16.     {
17.         em[i] = bulletTail[i].GetComponent<ParticleSystem> ().emission.rateOverTime;
18.     }
19. }
20.  
21. //...
22.  
23. void OnCollisionEnter2D (Collision2D other) {
24.     //...
25.  
26.     //Destroy (gameObject);
27.     GetComponent<ProjectileController> ().enabled = false;
28.     GetComponent<SpriteRenderer> ().enabled = false;
29.  
30.     //rateOverTime to zero
31.     foreach (ParticleSystem thisBulletTail in bulletTail)
32.     {
33.         var emToZero = thisBulletTail.GetComponent<ParticleSystem> ().emission;
34.         emToZero.rateOverTime = 0f;
35.     }
36.  
37.     //...
38. }

/* PlayerAbilityController.cs / AIFireController.cs */

Code (CSharp):

1.     //Instantiate (gameObject);
2.     projectile.Controller.GetComponent<ProjectileController> ().enabled = true;
3.     projectile.GetComponent<SpriteRenderer> ().enabled = true;
4.  
5.     //rateOverTime restore
6.     for (int i = 0; i < projectile.bulletTail.Length; i++)
7.     {
8.         var emRestore = projectile.bulletTail[i].GetComponent<ParticleSystem> ().emission;
9.         emRestore.rateOverTime = projectile.GetInitialEmissionROT (i);
10.     }

Though, there still many things I need to do, to say this really gonna work; I need to re-code it from Instantiate-Destroy to Object-Pooling per unique projectiles.