Coroutine in Extension Method

Question

I wrote an extension method to make an object move over time. It works well; however, because the object is performing that task over a period of time, it is ignoring all other calls, such as my update method. I am assuming I need to do something with a Coroutine, but I cannot figure out where it goes. How can I make the following code work without preventing other code (such as the Update() method) from running simulateneously? The simplified version is as follows:

==================================================================================

//The following script is attached to the GameObject
[RequireComponent(typeof(Rigidbody2D)]
public class MyBehaviour : MonoBehaviour
{
    void Start()
    {
        rigidbody2D.MoveOverTime();
    }

    void Update(){
        rigidbody2D.MovePosition(transform.position.x + 1, transform.position.y);
    }
}

==================================================================================

//The following script is not attached to anything
public static class Rigidbody2DExtension
{
    public static void MoveOverTime(this Rigidbody2D rigidbody2D)
    {
       gameObject.addComponent<MoveOverTimeComponent>();
    }
}

[RequireComponent(typeof(Rigidbody2D)]
class MoveOverTimeComponent : MonoBehaviour
{
    void Update(){
        MovePositionByALittleBit();
    }

    void MovePositionByALittleBit(){
        float x = transform.position.x + 1;
        float y = transform.position.y;
        rigidbody2D.MovePosition(new Vector2(x, y));
    }
}

Answer 1

Both your Updates() are running. In fact, all the Updates() of all the MonoBehaviours will run.

Assuming that gameObject.addComponent<MoveOverTimeComponent>(); actually refers to a GameObject (which is not clear by the limited code you posted) then your problem is trying to move the same GameObject on two different Update() functions.