How to add Particles, audio, material in runtime by JS code?

Target Platforms Mobile
1

I used the following code to add rigidbody and collider to a gameobject in runtime.

var l_palm = GameObject.Find("Player/man/Pelvis/Spine/Spine.2/Heart/L_Shoulder/L_Elbow/L_Hand/L_Palm");
var collider_l_palm = l_palm.AddComponent(SphereCollider);
var rigidbody_l_palm = l_palm.AddComponent(Rigidbody);

Now, I need to add Particles, audio, material to the same gameobject when collide.

function OnCollisionEnter(hit : Collision)
{
	if(hit.gameObject.tag == "lightpunch")
	{
		Character.animation.Play ("beingattack"); 
                //how to add particles, audio, material here?
	}
}

here is the components that i need to add and how should I access them to set their properties?

385255--13270--$screen_shot_2010_09_12_at_101044_pm_155.png
385255--13270--$screen_shot_2010_09_12_at_101044_pm_155.png395×847 62.1 KB

2

The easiest way to do this is to set up the particle effect and sound on an empty GameObject in the scene and then make a prefab from it. You can then instantiate the prefab wherever you want to release the particles. In your code, you would probably use something like this:-

var effectPrefab: GameObject;

function OnCollisionEnter(hit : Collision) 
{ 
   if(hit.gameObject.tag == "lightpunch") 
   { 
      Character.animation.Play ("beingattack"); 
      Instantiate(effectPrefab, hit.contacts[0].position, Quaternion.identity);
   } 
}

If you enable the One Shot and Autodestruct options on the particle system, the effect object will be destroyed when the last particle has disappeared.

3

I changed the code:

var particlePunch : GameObject;
function OnCollisionEnter(hit : Collision)
{
Instantiate (particlePunch, hit.contacts[0].position, Quaternion.identity);	
}

Error:
‘position’ is not a member of ‘UnityEngine.ContactPoint’.

4

Try:

Instantiate (particlePunch, hit.contacts[0].transform.position, Quaternion.identity);
5

error:

‘transform’ is not a member of ‘UnityEngine.ContactPoint’.

6

Debug.Log your contact(0)…

I really dont think you need it…so delete contact(0) since your just trying instantiate at the hit position.

Instantiate (particlePunch, hit.transform.position, Quaternion.identity);

or

Instantiate (particlePunch, hit.gameObject.transform.position, Quaternion.identity);

or you might not even need the hit in that script and use the contact(0):

Instantiate (particlePunch, contact(0).transform.position, Quaternion.identity);

There might be syntax errors but try them all to see if u get results.

7

Sorry, made a mistake there. The field is not called position, but point. The code should look like this:-

Instantiate (particlePunch, hit.contacts[0].point, Quaternion.identity);

It’s always worth checking the manual out when you get one of those “not a member” errors.