public void Authenticate()
{
Debug.Log("Authenticate");
#if UNITY_IOS
socialService = new GameCenterService();
#endif
#if UNITY_ANDROID && GOOGLE_PLAY_GAMES_ENABLED
socialService = new GooglePlayService();
((GooglePlayService)socialService).Init();
#endif
if (socialService != null)
{
socialService.Authenticate();
}
}