void Update ()
{
    if (fireRate == 0)
    {
        if (CrossPlatformInputManager.GetButtonDown("Fire1"))
        {
            Shoot();
        }
    }
    else
    {
        if (CrossPlatformInputManager.GetButton ("Fire1") && Time.time > timeToFire)
        {
            timeToFire = Time.time + 1 / fireRate;
            Shoot();
        }
    }
}

void Shoot ()
{
    Vector2 joyStickPosition = new Vector2(Camera.main.ScreenToWorldPoint(CrossPlatformInputManager.mousePosition).x, Camera.main.ScreenToWorldPoint(CrossPlatformInputManager.mousePosition).y);
    Vector2 firePointPosition = new Vector2 (firePoint.position.x, firePoint.position.y);
    RaycastHit2D hit = Physics2D.Raycast (firePointPosition, joyStickPosition-firePointPosition, 100, whatToHit);

    Debug.DrawLine(firePointPosition, (joyStickPosition - firePointPosition)*100, Color.cyan);
    if (hit.collider != null)
    {
        Debug.DrawLine(firePointPosition, hit.point, Color.red);
        Enemy enemy = hit.collider.GetComponent<Enemy>();
        if (enemy != null)
        {
            enemy.DamageEnemy(Damage);
            //Debug.Log("We hit " + hit.collider.name + "and did " + Damage + "damage");
        }
    }