Move player along z axis on touch(touchPad)

Hi there,

Been trying this for days and cannot crack it. I want to move my player up and down the z axis, based on where the player is touching(clicking for PC) on the touchpad. I.e if the player is touching towards the top of the touchpad, the player moves up on the z axis, and if they are touching towards the bottom of the touchpad.... etc.

I am using Unity's 'Dual Touch Controls' Prefab, but I cannot get it to move the player on Touch. I have put the code for the touch pad below, any help would be appreciated.

 using UnityEngine;
 using UnityEngine.EventSystems;
 using UnityEngine.UI;
 using UnitySampleAssets.CrossPlatformInput;
 
 
 [RequireComponent(typeof(Image))]
 public class TouchPad : MonoBehaviour , IPointerDownHandler , IPointerUpHandler
 {
 
     public enum AxisOption
     {                                                    // Options for which axes to use                                                     
         Both,                                                                   // Use both
         OnlyHorizontal,                                                         // Only horizontal
         OnlyVertical                                                            // Only vertical
     }
 
     public enum ControlStyle
     {
         Absolute,               // operates from teh center of the image
         Relative,                // operates from the center of the initial touch
         Swipe,                  // swipe to touch touch no maintained center
     }
 
     public AxisOption axesToUse = AxisOption.Both;   // The options for the axes that the still will use
     public ControlStyle controlStyle = ControlStyle.Absolute;   // control style to use
     public string horizontalAxisName = "Horizontal";// The name given to the horizontal axis for the cross platform input
     public string verticalAxisName = "Vertical";    // The name given to the vertical axis for the cross platform input 
     public float sensitivity = 1f;
 
     private Vector3 startPos;
     private Vector2 previousDelta;
     private Vector3 m_JoytickOutput;
     private bool useX;                                                          // Toggle for using the x axis
     private bool useY;                                                          // Toggle for using the Y axis
     private CrossPlatformInputManager.VirtualAxis horizontalVirtualAxis;               // Reference to the joystick in the cross platform input
     private CrossPlatformInputManager.VirtualAxis verticalVirtualAxis;                 // Reference to the joystick in the cross platform input
     private bool dragging = false;
     private int id =-1;
 
     //Others
     public GameObject player;
     private Vector3 destinationPosition;
     public Transform myTransform;
 
 
 #if !UNITY_EDITOR
     private Vector3 center;
     private Image image;
 #endif
     private Vector2 previousTouchPos;                                           // swipe style control touch 
 
 #if UNITY_EDITOR
     private Vector3 previousMouse;
 #endif
 
     void OnEnable()
     {
         CreateVirtualAxes();
 #if !UNITY_EDITOR
         image = GetComponent<Image>();
         center = image.transform.position;
 #endif
     }
 
 
     private void CreateVirtualAxes()
     {
         // set axes to use
         useX = (axesToUse == AxisOption.Both || axesToUse == AxisOption.OnlyHorizontal);
         useY = (axesToUse == AxisOption.Both || axesToUse == AxisOption.OnlyVertical);
 
         // create new axes based on axes to use
         if (useX)
             horizontalVirtualAxis = new CrossPlatformInputManager.VirtualAxis(horizontalAxisName);
         if (useY)
             verticalVirtualAxis = new CrossPlatformInputManager.VirtualAxis(verticalAxisName);
     }
 
     private void UpdateVirtualAxes(Vector3 value)
     {
 
         value = value.normalized;
         if (useX)
             horizontalVirtualAxis.Update(value.x);
 
         if (useY)
             verticalVirtualAxis.Update(value.y);
 
     }
 
     public void OnPointerDown(PointerEventData data)
     {
         Debug.Log ("TOUCHPAD WAS PRESSED ONCE");
         dragging = true;
         id = data.pointerId;
 
 
 #if !UNITY_EDITOR
         if (controlStyle != ControlStyle.Absolute )
             center = data.position;
 #endif
     }
 
     void Update () {
 
         if (!dragging) {
             return;
         }
     
     
 
         if (Input.touchCount >= id && id != -1) {
 
 
 
 #if !UNITY_EDITOR
 
             if (controlStyle == ControlStyle.Swipe)
             {
                 center = previousTouchPos;
                 previousTouchPos = Input.touches[id].position;
             }
             Vector2 pointerDelta = new Vector2(Input.touches[id].position.x - center.x , Input.touches[id].position.y - center.y).normalized * sensitivity;
 #else
 
             Vector2 pointerDelta;;
             pointerDelta.x = Input.mousePosition.x - previousMouse.x;
             pointerDelta.y = Input.mousePosition.y - previousMouse.y;
             previousMouse = new Vector3(Input.mousePosition.x , Input.mousePosition.y , 0f);
 #endif
             UpdateVirtualAxes (new Vector3 (pointerDelta.x, pointerDelta.y, 0));
         }
         Debug.Log ("TOUCHPAD IS BEING PRESSED");
 
             
 
     }
 
 
     public void OnPointerUp(PointerEventData data) {
         dragging = false;
         id = -1;
         UpdateVirtualAxes(Vector3.zero);
 
     }
 
 
 }