character touch/tap-to-move not interact with camera drag movement

Hi pros.. I am total newbie here I tried to make my character move to touch in android by using touchphase.ended.. i able to move him but i planned to do something like, if once i move my finger after i touched the screen, the touch phase.ended will be not executed. so my character just move on single tap but not on dragging

this is important for me so that the character not move while drag camera movement

here is my code

using UnityEngine; using System.Collections;

public class GoToMouse : MonoBehaviour {

 public float speed = 1.5f;
 private Vector2 target;
 
 void Start () 
 {
     target = transform.position;
 }
 
 void Update () 
 {
     Touch[] touches = Input.touches;

     if (touches.Length == 1)
     {
         if (touches[0].phase == TouchPhase.Ended) 
         {
             target = Camera.main.ScreenToWorldPoint (Input.mousePosition);
         }

         if (touches[0].phase == TouchPhase.Moved)
         {
             // TouchPhase.Ended will be not working/no action to be taken once TouchPhase.Moved.. help plss
         }
     }

     transform.position = Vector2.MoveTowards (transform.position, target, speed * Time.deltaTime);
 }

}