Move animation in coroutine problem

Hi,

I'm trying to take my first steps in Unity and I've stumbled upon this very weird issue. I've a pathfinding script, after finding one I'm trying to move player and change his animation to idle/walking with current direction. But when I'm using code below the animation isn't changing at all or is changing with random delays. The result is that player is idle-sliding or sliding with good animation but wrong direction. I've tried changing animation parameters in coroutines but with no success. Big part of the code is from Roguelike tutorial.

     public float moveTime = 0.1f;
     protected int direction = 2;
     protected bool isWalking = false;

     void Update() {
         anim.SetBool ("walking", isWalking);
         anim.SetInteger ("direction", direction);
     }

     //Protected, virtual functions can be overridden by inheriting classes.
 protected virtual void Start ()
 {
     //Get a component reference to this object's BoxCollider2D
     boxCollider = GetComponent <BoxCollider2D> ();
     
     //Get a component reference to this object's Rigidbody2D
     rb2D = GetComponent <Rigidbody2D> ();

     anim = GetComponent<Animator> ();

     //By storing the reciprocal of the move time we can use it by multiplying instead of dividing, this is more efficient.
     inverseMoveTime = 1f / moveTime;
 }

     protected IEnumerator moveAlongPath(List<IntVector2> path) {
         isWalking = true;
         Debug.Log ("Anim-walking: " + anim.GetBool ("walking"));
         foreach (IntVector2 p in path) {
             Vector3 to = new Vector3(p.X, p.Y, 0);
             changeDirection(to);
             Debug.Log ("Anim-direction: " + anim.GetInteger ("direction"));
             yield return StartCoroutine(SmoothMovement(to));
         }
         isWalking = false;
         Debug.Log ("Anim-walking: " + anim.GetBool ("walking"));
     }
     
     
     //Co-routine for moving units from one space to next, takes a parameter end to specify where to move to.
     protected IEnumerator SmoothMovement (Vector3 end)
     {
         //Calculate the remaining distance to move based on the square magnitude of the difference between current position and end parameter. 
         //Square magnitude is used instead of magnitude because it's computationally cheaper.
         float sqrRemainingDistance = (transform.position - end).sqrMagnitude;
         
         //While that distance is greater than a very small amount (Epsilon, almost zero):
         while(sqrRemainingDistance > float.Epsilon)
         {
             //Find a new position proportionally closer to the end, based on the moveTime
             Vector3 newPostion = Vector3.MoveTowards(rb2D.position, end, inverseMoveTime * Time.deltaTime);
             
             //Call MovePosition on attached Rigidbody2D and move it to the calculated position.
             rb2D.MovePosition (newPostion);
             
             //Recalculate the remaining distance after moving.
             sqrRemainingDistance = (transform.position - end).sqrMagnitude;
             
             //Return and loop until sqrRemainingDistance is close enough to zero to end the function
             yield return null;
         }
     }

Exit times always 0, the same with transition duration

PS. How can I change speed of movement, because moveTime variable isn't giving any result :(