edit a prefab before putting on to the scence

Questions & Answers
1

I would like to reuse a prefab by changing the script attached on the prefab.
And then instantiate it every second.
While I find that I have difficulty on passing the edited model to a function.

public void rowShooting(string modelToBeClone){

		GameObject gameBackground=GameObject.Find ("Plane");
		GameObject charA=(GameObject)Resources.Load("char_A");
		Vector3 startPos = new Vector3 ((gameBackground.renderer.bounds.max.x+gameBackground.renderer.bounds.min.x)/2,1,6);
		GameObject cloneChar= (GameObject)Instantiate (charA);
		Destroy (cloneChar.GetComponent<characterAbility_A>());
		cloneChar.AddComponent ("attFunction_rowAttack");
		cloneModelOnRow (cloneChar,startPos);

	}

	public IEnumerator cloneModelOnRow(GameObject model,Vector3 center){
	for(int i=0;i<5;i++){
		//instaniate model
		yield return new WaitForSeconds (1);
	}

}

I would like to change the script on the first function,
and pass it to the second function,
while once I called the function Instantiate(),
the model have put on to the scene,
are there any solution so that I can put the model on scene in the second function?

2

You may find it easier to use a dummy prefab. Instantiate an instance of your prefab as a GameObject. Disable it. Do all your modifications to the disabled GameObject. Then Instantiate straight from the disabled GameObject.

This approach lets you do whatever modifications you like to the dummy prefab during runtime, without compromising the actual data on the prefab