IJEMIN

// code reference: http://answers.unity3d.com/questions/894995/how-to-saveload-with-google-play-services.html		
// you need to import https://github.com/playgameservices/play-games-plugin-for-unity
using UnityEngine;
using System;
using System.Collections;
//gpg
using GooglePlayGames;
using GooglePlayGames.BasicApi;
using GooglePlayGames.BasicApi.SavedGame;
//for encoding