please please please very urgent, can someone convert this script for android swipe

using UnityEngine; using System.Collections;

public class Bounce : MonoBehaviour {

 float lerpTime;
 float currentLerpTime;
 float percentage = 1;

 Vector3 startPos;
 Vector3 endPos;

 bool firstInput;
 public bool justJump;

 void Update () {
     if(Input.GetButtonDown("up") || Input.GetButtonDown("down") || Input.GetButtonDown("left") || Input.GetButtonDown("right")) {
         if (percentage == 1)
         {
             lerpTime = 1;
             currentLerpTime = 0;
             firstInput = true;
             justJump = true;
         }
     }
     startPos = gameObject.transform.position;
     if (Input.GetButtonDown ("right") && gameObject.transform.position == endPos) {
         endPos = new Vector3(transform.position.x + 1, transform.position.y, transform.position.z);
     }
     if (Input.GetButtonDown ("left") && gameObject.transform.position == endPos) {
         endPos = new Vector3(transform.position.x - 1, transform.position.y, transform.position.z);
     }
     if (Input.GetButtonDown ("up") && gameObject.transform.position == endPos) {
         endPos = new Vector3(transform.position.x, transform.position.y, transform.position.z + 1);
     }
     if (Input.GetButtonDown ("down") && gameObject.transform.position == endPos) {
         endPos = new Vector3(transform.position.x, transform.position.y, transform.position.z - 1);
     }
     if (firstInput == true) {
         currentLerpTime += Time.deltaTime * 5;
         percentage = currentLerpTime / lerpTime;
         gameObject.transform.position = Vector3.Lerp (startPos, endPos, percentage);
         if (percentage > 0.8){
             percentage = 1;
         }
         if (Mathf.Round(percentage) == 1) {
             justJump = false;
         }
     }
 }

}

i want something like crossy bird when i swipe it moves to the right or left. i spent 2 days and still not able to find. thanks for advance