Converting Mouse to touch controls

I am trying to create a camera script to rotate around a fixed object. I have used mouse inputs to hover around the scene. Now I need to convert them into touch inputs to test it. This is the script I have made: using UnityEngine; using System.Collections;

public class InspectCamera : MonoBehaviour {

 public Transform target;
 private float distance2 = 2.0f;

 private float xSpeed = 200.0f;
 private float ySpeed = 100.0f;

 private float yMinLimit = -20.0f;
 private float yMaxLimit = 80.0f;

 private float x = 0.0f;
 private float y = 0.0f;

 // Use this for initialization
 void Start () 
 {
     Vector3 angle = transform.eulerAngles;
     x = angle.y;
     y = angle.x;

     if (GetComponent<Rigidbody>())
     {
         GetComponent<Rigidbody>().freezeRotation = true;

     }
 }
 
 // Update is called once per frame
 void LateUpdate ()
     {
         if (target)
         {
             x += Input.GetAxis("Mouse X") * xSpeed * 0.02f;
             y -= Input.GetAxis("Mouse Y") * ySpeed * 0.02f;
 
         y = clampAngle(y, yMinLimit, yMaxLimit);

             Quaternion rotate = Quaternion.Euler(y,x,0);
             Vector3 position2 = rotate * new Vector3(0.0f,0.0f,-distance2) + target.position;
     
             transform.rotation = rotate;
         transform.position = position2;
         }
     }
 static float clampAngle( float angle, float min, float max)
 {
     if ( angle <-360)
      angle +=360;
         if(angle > 360)
         angle -= 360;

     return Mathf.Clamp(angle, min, max);

}

}