gistfile1.cs

//Object A needed to ref from ObjectB, with Component C inside it.
//Component C's public float c need to be adjust to 20.0f when made

public class ObjectA: Monobehaviour
{
  void Awake()
  {
      if(Instantiate_GameObject( "ObjectB", "C" ))
      {
        C tempC = GameObject.Find("ObjectB").GetComponent<C>();
        tempC.c = 20.0f;
      }
  }


  bool Instantiate_GameObject( string gameObjectName, string refComponentName )
  {
		//If the GameObject is not already there, make it
		if(GameObject.Find(gameObjectName) == null)
		{
			GameObject tempGameObject = new GameObject(gameObjectName);
		}
		
		//If the GameObject doesnot need Component, ignore
		if( refComponentName == "" ) return false;
		
		//If the GameObject doesnot have needed Component, attach it
		GameObject refGameObject = GameObject.Find(gameObjectName);
		
		if( refGameObject.GetComponent(refComponentName) == null )
		{
			refGameObject.AddComponent(refComponentName);
			//Return True if it is making new Component, so that additional code can be made to modify newly made Component
			return true;
		}
		return false;
	}
}