MultiTouch GUITexture Android

I just make one GUITEXTURE Buttons to move but, it's working fine but, when i use my jetpack to up i can't move to right and left some pro c# help me out? :) Thank you guys.. have a nice day.

here my code: using UnityEngine; using System.Collections;

public class PlayerController : MonoBehaviour { public GUITexture right; public GUITexture left; public GUITexture down; public GUITexture up;

 public Vector2 moving = new Vector2();
 
 // Use this for initialization
 void Start () {
     
 }
 
 // Update is called once per frame
 void Update () {
     
     moving.x = moving.y = 0;




     if (Input.touchCount > 0) {
         
         for (int i = 0; i < Input.touchCount; i++) {
             
             if (right.HitTest (Input.GetTouch (0).position)) {
                 moving.x = 1;
             }
             if (left.HitTest (Input.GetTouch (0).position)) {
                 moving.x = -1;
             }    
             if (up.HitTest (Input.GetTouch (0).position)) {
                 moving.y = 1;
             }
             if (down.HitTest (Input.GetTouch (0).position)) {
                 moving.y = -1;
             }
             
         }
     }
 }

}