mobile swipe (touch) controls (left, right, up, down) in unity

using UnityEngine;
using System.Collections;

public class TouchControl : MonoBehaviour {

    private Vector2 fp; // first finger position
    private Vector2 lp; // last finger position

 
    void FixedUpdate () {
        foreach(Touch touch in Input.touches)
        {
            if (touch.phase == TouchPhase.Began)
            {
                fp = touch.position;
                lp = touch.position;
            }
            if (touch.phase == TouchPhase.Moved )
            {
                lp = touch.position;
            }
            if(touch.phase == TouchPhase.Ended)
            {
                if((fp.x - lp.x) > 80) // left swipe
                {
                    Debug.Log("left swipe here...");
                }
                else if((fp.x - lp.x) < -80) // right swipe
                {
                    Debug.Log("right swipe here...");
                }
                else if((fp.y - lp.y) < -80 ) // up swipe
                {
                    Debug.Log("up swipe here...");
                }
                else if((fp.y - lp.y) > 80 ) // down swipe
                {
                    Debug.Log("down swipe here...");
                }
            }
        }
    }
}