Scriptableobject delay for AoE skill which instantiates multiple objects;

Question

Hello, I'm making some SO skills , however I have a AoE one which I need to instantiate cannonballs in random circle over time. When they start there's a cannon sound and then that high pitched falling sound followed by an explosion sfx/vfx on collision. Like Gangplank's ult in LoL if anyone plays, here's an example ( https://youtu.be/IpTFhJApRUg?t=1m21s )

The problem is exactly how do I cause a delay on the instantiate...

 public override void (Trigger()
 {
     for (int i = 1; i < iterations + 1; i++)
     {
         //Invoke("InstantiateCannonball", 0.5f * i);
     }
 }

 void InstantiateCannonball()
 {
     GameObject cb = Instantiate(cannonball, new Vector3(
             caster.transform.position.x + Random.Range(-2f, 2f),
             caster.transform.position.y + 4,
             caster.transform.position.z + Random.Range(-2f, 2f)), Quaternion.identity) as GameObject;
 }

I thought I might use Invoke, but it derives from Mono after all. Now I had the idea of maybe starting a coroutine in the script that manages and calls the skills like so, haven't tested it yet as I need to figure out which skill would need to be called. Any ideas anyone? Thanks.

 IEnumerator CallRepeatedely(string function, float delay, float times)
 {
     WaitForSeconds wfs = new WaitForSeconds(delay);
     for (int i = 0; i < times; i++)
     {
         Invoke(function, 0);
         yield return wfs;
     }
 }

Answer 1

Hello, I figured a workaround for this one.

I set the cannonball as kinematic at first and the set the delay parameters.

In the skill SO

 for (int i = 1; i < iterations + 1; i++)
         {
             CannonBall cb = Instantiate(cannonball, new Vector3(
                 caster.transform.position.x + Random.Range(-2f, 2f),
                 caster.transform.position.y + 4,
                 caster.transform.position.z + Random.Range(-2f, 2f)), Quaternion.identity).GetComponent<CannonBall>();
 
             // Set up the cannonball;
             cb.Set(i/2, damage, cannonSFX, fallSFX, explosionSFX, explosionVFX);
             
             //   InstantiateCannonball(i / 2);
         }

Then in the cannonball monobehaviour: The reason for the reaaaally long parameters is that I think putting everything on the cannonball would defeat the purpose of having a scriptable object skill, that way the special effect references are all in the SO and not in the prefab, which could be interchanged. Speaking of which maybe I should add some code to detect whether the prefab has a Rigidbody and CannonBall script as well.

 public void Set(float delay, float dmg, VariableVolumePitch cannonSfx, VariableVolumePitch fallSfx, VariableVolumePitch explosionSfx, GameObject explosionVfx)
     {
         damage = dmg;
 
         // Sound effects.
         cannonSFX = cannonSfx;
         fallSFX = fallSfx;
         explosionSFX = explosionSfx;
 
         // Visual effects.
         explosionVFX = explosionVfx;
 
         Invoke("Fire", delay);
     }
 
     public void Fire()
     {
         cannonSFX.Play(GetComponent<AudioSource>());
         Invoke("Fall", 1);
     }
 
     public void Fall()
     {
         fallSFX.Play(GetComponent<AudioSource>());
         GetComponent<Rigidbody>().isKinematic = false;
     }
 
     private void OnCollisionEnter(Collision collision)
     {
         (...)
     }

Scriptableobject delay for AoE skill which instantiates multiple objects;

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