2d Top Down Enemy Control (LoZ type)

So I'm in the process of testing out certain ideas in Unity since the latest 2D update. I've always been obsessed with the play style of Zelda games and wanted to create something along that play style.

I've pretty much got the basics covered at this point thanks to plenty of tutorials I've been able to find across the web. However, I've been unable to get what I've learned and apply it to Enemy Movement, at least in regards to animation. I can get the enemies to follow me no problem and change animation direction based on my characters movement, however, if I don't have the movement of my character as a factor, the enemy stays in the "forward facing" direction.

For instance, here's my playerController:

 using UnityEngine;
 using System.Collections;
 
 public class playerController : MonoBehaviour
 {
     // The speed of the player
     public Vector2 speed = new Vector2(1, 1);
     
     // Store the movement
     private Vector2 movement;
 
     // Animation purposes
     private Animator animator;
     
     // Use this for initialization
     void Start()
     {
         animator = this.GetComponent<Animator>();
     }
 
     // Update is called once per frame
     void Update()
     {    
         // Retrieve axis informatio
         var vertical = Input.GetAxis("Vertical");
         var horizontal = Input.GetAxis("Horizontal");
 
         // Movement per direction
         movement = new Vector2(speed.x * horizontal, speed.y * vertical);
         
         if (vertical > 0)
         {
             animator.SetInteger("Direction", 2);
             animator.SetFloat("Speed", 1.0f);
         }
         else if (vertical < 0)
         {
             animator.SetInteger("Direction", 0);
             animator.SetFloat("Speed", 1.0f);
         }
         else if (horizontal < 0)
         {
             animator.SetInteger("Direction", 1);
             animator.SetFloat("Speed", 1.0f);
         }
         else if (horizontal > 0)
         {
             animator.SetInteger("Direction", 3);
             animator.SetFloat("Speed", 1.0f);
         }
         else
         {
             animator.SetFloat("Speed", 0.0f);
         }
 
         // Attacking
         bool attack = Input.GetButtonDown("Fire1");
         attack |= Input.GetButtonDown("Fire2");
         // Careful: For Mac users, ctrl + arrow is a bad idea
         
         if (attack)
         {
             WeaponScript weapon = GetComponent<WeaponScript>();
             if (weapon != null)
             {
                 // false because the player is not an enemy
                 weapon.Attack(false);
             }
         }
     }
 
     void FixedUpdate()
     {
         // Move the game object
         rigidbody2D.velocity = movement;
     }
 }

And here's my Enemy "AI" movement script:

 using UnityEngine;
 using System.Collections;
 
 public class AI : MonoBehaviour {
     
     private Animator animator;
     private Vector3 Enemy;
     private Vector2 EnemyDirection;
     private int Ground;
 
     public float xDir;
     public float yDir;
     private float speed = 110;
 
     void Start () 
     {
         animator = this.GetComponent<Animator>();
         Ground = 1 << 12;
     }
 
     void Update () 
     {
         Enemy = GameObject.Find ("Player").transform.position;
 
         xDir = Enemy.x - transform.position.x;
         yDir = Enemy.y - transform.position.y;
 
         EnemyDirection = new Vector2 (xDir, yDir);
 
         //line of sight
         if (!Physics2D.Raycast(transform.position, EnemyDirection, 1, Ground))
             {
                 rigidbody2D.AddForce(EnemyDirection.normalized * speed);
             }
 
         // directional control
         if (yDir > 1)
         {
             animator.SetInteger("Direction", 2);
             animator.SetFloat("Speed", 1.0f);
         }
         else if (yDir < -1)
         {
             animator.SetInteger("Direction", 0);
             animator.SetFloat("Speed", 1.0f);
         }
         else if (xDir < -1)
         {
             animator.SetInteger("Direction", 1);
             animator.SetFloat("Speed", 1.0f);
         }
         else if (xDir > 1)
         {
             animator.SetInteger("Direction", 3);
             animator.SetFloat("Speed", 1.0f);
         }
         else
         {
             animator.SetFloat("Speed", 0.0f);
         }
     }
 
     void OnTriggerEnter2D(Collider2D other)
     {
         Debug.Log ("Hit " + other.gameObject);
     }
 }

Just a heads up, I'm sort of a noob when it comes to C#, and had more experience with JavaScript and C++, however, I figure now is the perfect time to learn something new right?