Unity Pixel Movement

public class PixelMovement : MonoBehaviour
{
    protected Transform mTransform;

    protected void Awake()
    {
        mTransform = transform;
    }

    protected virtual IEnumerator MoveTo(Vector4 values)
    {
        Vector3 targetPos = new Vector3(values.x,values.y,values.z);
        float speed = values.w;
        float currX = mTransform.localPosition.x;
        float currY = mTransform.localPosition.y;
        float deltaX = Math.Sign(targetPos.x - currX);
        float deltaY = Math.Sign(targetPos.y - currY);
        while(Vector3.SqrMagnitude(targetPos-mTransform.localPosition) > 0)
        {
            currX += deltaX * speed * Time.deltaTime;
            currY += deltaY * speed * Time.deltaTime;
            Vector3 newPos = new Vector3((int)currX,(int)currY,0f);
            Vector3 currPos = mTransform.localPosition;
            if(Vector3.SqrMagnitude(targetPos-currPos) < Vector3.SqrMagnitude(newPos-currPos))
            {
                newPos = targetPos;
            }
            mTransform.localPosition = newPos;
            yield return null;
        }
        MoveToCallback();
    }

    protected virtual void MoveToCallback()
    {

    }
}