How to check if an object has collided with a specified object from a script

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1

Hello, everybody. I am trying to make a script that executes a command when object A collides with object B. The script, however, needs to be on object C. Any pointers on how to do this would be great.

2

1.) Create a script called ObjectCScript, and attach it to object C.

2.) Create a function on ObjectCScript, called ABCollided()

3.) Create a script called ObjectAScript, and attach it to object A.

4.) Add the following lines of code to ObjectAScript...

public ObjectCScript objectCScript; // Set this in the inspector

void OnCollisionEnter(Collision theCollision)
    {
        if(theCollision.gameObject.name == "ObjectB") // If A collides with B
        {
            objectCScript = objectCScript.GetComponent<ObjectCScript>();
            objectCScript.ABCollided(); // Call the ABCollided function on ObjectB

        }
    }

You can also use SendMessage to call a script method on another object.

Here is a JavaScript example

Add this script to ObjectC..

function ABCollided()
{
  Debug.Log("A collided with B");
}

Then add this script to ObjectA...

function OnCollisionEnter(collision : Collision) {
 if(collision.gameObject.name == "ObjectB") // If A collides with B
{
  gameObject.Find("ObjectC").SendMessage("ABCollided");
 }
}