What's a good way to tell if an object (on Navmesh) is stuck?

Unity Engine
, ,
5

I decided not to use raycasting since some objects may be pushed and I wouldn’t want them to stop NPC from moving.

Here’s what I currently ended up with (rough idea):

public IEnumerator IsStuckCheck()
    {
        while (true)
        {
            Vector2 oldPos = transform.position;
            yield return new WaitForSeconds(0.5f);
            Vector2 newPos = transform.position;

            if (Vector2.Distance(newPos, oldPos) <= 0.5f) 
                isStuck = true;
        }
    }

After some testing it seems be quite reliable, however I am still open to better suggestions.