collision between two objects

Unity Engine
1

It’s a little silly question but I’m confused about how can I say in javascript that two specific objects are OnCollisionEnter??

2 
// If some object with a certain name collides with this object, do something
function OnCollisionEnter (collision : Collision)
{
      if (collision.gameObject.name == "whatever")
      {
             // do stuff
      }
}
3

so if I wan to do something when object A collides with object B, then I should attach a script to object A that says:

function OnCollisionEnter (collision : Collision) 
{ 
      if (collision.gameObject.B == "whatever") 
      { 
             // do stuff 
      } 
}

what does the “whatever” represents? A true or false state maybe? Or the script works without even write it?

4

That is the name of the object that it collides with

This is how it would look then:

// ObjectA.js

function OnCollisionEnter (collision : Collision)
{
     // if the collider that objectA collides with's name is "objectB"
     if (collisoin.gameObject.name == "objectB")
     {
         // then do something
     }
}
5

to be more specific. I have a timer, a road (Plane01) and a car. What I want is to start playing an object’s audioclip, when the car collides with the road and the timer is lower than 5 secs.

I have this:

function Update () {
	
  	
    if ((seconds < 5)  (collision.gameObject.Plane01)) {
    	 
    GameObject.Find("Bass").GetComponent(AudioSource).volume = 1;
      
    }
}

but it doesn’t work. How can I specify in the script that the car is colliding with the road??

6 
function OnCollisionEnter (collision : Collision) {
    if ((seconds < 5)  (collision.gameObject.name == "Plane01")) {
    GameObject.Find("Bass").GetComponent(AudioSource).volume = 1;     
    }
}
7

yeah, I try it, it’s right but it doesn’t work, probably because i have attached to the Plane01 the following script:

function OnCollisionEnter () {
	for (var j=0.0;j<1.1;j+=0.1) {
			audio.volume = j; 
			yield WaitForSeconds (0.01);
			
	}
}
function OnCollisionExit () {
	if (audio.volume > 0.0){
	for (var k=1.1;k>0.0;k-=0.1) {
			audio.volume = k-0.1; 
			yield WaitForSeconds (0.01);
		
	}
  }
}

I have to work it out somehow now. Thanx anyway!! :smile:

EDIT: Well, it seems that I have to use a OnCollisionStay function instead of enter.