Unity 2D NPC teleports instead of moving

Question

I'm new to Unity and C#, but I'm trying to learn by making a basic RPG. I've gotten to a point, where my player character can move, but when I try to make an NPC walk to a specific point, it just teleports instantly.

using UnityEngine;

public class Walker : MonoBehaviour

{
    public float walkerSpeed = 1.0f;

    public void moveWalker(float x, float y)
    {
        Vector2 movement = new Vector2(x, y) * walkerSpeed;
        movement *= Time.fixedDeltaTime;
        transform.Translate(movement);
    }

    public void ScriptedWalk(float MoveToX, float MoveToY)
    {
        while (Mathf.Abs(MoveToX - transform.position.x) > 0.05f)
            if (MoveToX > transform.position.x)
                moveWalker(1, 0);
            else
                moveWalker(-1, 0);
    }

}

I'm calling ScriptedWalk from my NPC's Start function, and I got stuck testing movement on the x axis. The NPC is in X = -2.5 and neds to get to X = 2. What am I not understanding here?

Answer 1

Thank you Douglas, as you've suggested in your comment, I used a Coroutine, and changed my ScriptedWalk to this:

public IEnumerator ScriptedWalk(float MoveToX, float MoveToY)
{
    if (Mathf.Abs(MoveToX - transform.position.x) < 0.05f)
    {
        // set animator floats to 0
        stopWalker();
    }
    else
    {
        // Move east
        if (MoveToX > transform.position.x)
            moveWalker(1, 0);
        // Move west
        else
            moveWalker(-1, 0);
    }
    yield return null;
}

I am also calling it from my FixedUpdate method.