For when you really want that one line for instantiation and initialisation.

ConstructorIsh.cs

class MyBehaviour : MonoBehaviour
{
	public MyBehaviour Init (int some, float parameters)
	{
		//...
		return this;
	}
}


// Examples:
// MyBehaviour instance = new GameObject ("Moo").AddComponent<MyBehaviour>().Init (1, 5.5f);