Passing a variable to the child of Instantiated object?

Questions & Answers
1

I’m working on a destructible environment and when a wall breaks 4 equal parts fall away.
In script I want to pass a variable to each of the 4 child instances.
I wouldn’t think this would work properly if the prefab of the 4 parts were in a group when the script with the variable is attached to each wall piece not the actual prefab.

I was looking at something like this example I found in the questions area.

    Bullet zBullet = Instantiate(bullet, transform.position, Quaternion.identity) as Bullet;
    zBullet.playerNum = playerNumber;

But I think this would just make the zBullet have the variable not any child of it.

Any way to pass a variable to a child of an Instantiated prefab?
thanks

2

If the four parts have the same script (let’s suppose it’s called ChildScript.cs) you can do something like this:

public GameObject wallPrefab; // wall prefab
  ...
  // Instantiate the wall:
  GameObject wall = Instantiate(wallPrefab, ...) as GameObject;
  // for all children in wall...
  foreach (Transform child in wall.transform){
    // try to get the child script:
    ChildScript script = child.GetComponent< ChildScript>();
    if (script){ // if it has such script...
      script.someVar = someValue; // set its variable
    }
  }
  ...

EDITED: I thought your code was in C# - there goes the JS version:

var wallPrefab: GameObject; // wall prefab
  ...
  // Instantiate the wall:
  var wall: GameObject = Instantiate(wallPrefab, ...);
  // for all children in wall...
  for (var child: Transform in wall.transform){
    // try to get the child script:
    var script: ChildScript = child.GetComponent(ChildScript);
    if (script){ // if it has such script...
      script.someVar = someValue; // set its variable
    }
  }
  ...