FBManager.cs

using UnityEngine;
using UnityEngine.UI;
using System.Collections;
using System.Collections.Generic;
using Facebook.Unity;
using Facebook.MiniJSON;
using System;

public class FBManager : MonoBehaviour {

	public static List<object> scoresList = new List<object>();

	void Awake()
	{
		FB.Init(OnInitCompleted,OnHideUnity);
	}

	void OnInitCompleted()
	{
		if(FB.IsLoggedIn){
			//	El usuario ya esta conectado
		}else{
			//	El usuario no esta logueado
		}
	}

	void OnHideUnity(bool isGameShown)
	{
		if(!isGameShown)
		{

		}else{

		}
	}

	public static void FBlogin()
	{
		List<string> permissions = new List<string>();
		permissions.Add("public_profile");
		permissions.Add("user_friends");
		FB.LogInWithReadPermissions (permissions, AuthCallBack);
	}

	static void AuthCallBack(IResult result)
	{
		
		if(result.Error != null){
			Debug.Log(result.Error);
		}else{
			if(FB.IsLoggedIn){
				//	El usuario se logueo correctamente
				//	En caso de que se utilice PUBLISH_ACTIONS hay que pedir autorizacion al user
				List<string> permissions = new List<string>();
				permissions.Add("public_profile");
				permissions.Add("user_friends");
				permissions.Add("publish_actions");
				FB.LogInWithPublishPermissions(permissions,AuthCallBackPublish);
			}else{
				//	El usuario no se logueo por alguna razon			
			}
		}
		
	}

	void AuthCallBackPublish(IResult result)
	{
		if(result.Error != null){
			Debug.Log(result.Error);
		}else{
			if(FB.IsLoggedIn){
				
			}else{
			}
		}
	}

	public static String FBUserName = "";
	public static String GetUserName()
	{
		if(FB.IsLoggedIn){
			FB.API("/me?fields=first_name", HttpMethod.GET, ResultGetUserName);
			FB.API("/me/picture?type=square&height=128&width=128", HttpMethod.GET, GetProfilePic);
		}
	}

	static void ResultGetUserName(IResult result)
	{
		if(result.Error == null){
			FBUserName = result.ResultDictionary["first_name"].ToString();
		}else{
			Debug.Log(result.Error);
			FBUserName = "";
		}
	}

	public static Sprite FBProfilePic128;
	public static Sprite GetUserPic()
	{
		if(FB.IsLoggedIn){
			FB.API("/me/picture?type=square&height=128&width=128", HttpMethod.GET, ResultGetUserPic);
		}
	}

	static void ResultGetUserPic(IGraphResult result)
	{
		if(result.Texture != null){
			FBProfilePic128 = Sprite.Create(result.Texture, new Rect(0,0,128,128), new Vector2());
		}
	}

	public static void AppRequest()
	{
		FB.AppRequest(
			message:"Can you beat me in this game? Lets play now!",
			title:"Invite to play YOURGAME"
			);
	}

	public static void InviteFriends()
	{
		FB.Mobile.AppInvite(
			new Uri("https://fb.me/666666666666"),
			null,
			AppInviteCallback
		);
	}

	void AppInviteCallback(IAppInviteResult result)
	{

	}

	public static void ShowTop10()
	{
		FB.API("/app/scores?fields=score,user.limit(10)",HttpMethod.GET,ScoresCallBack);
	}
		
	void ScoresCallBack(IGraphResult result)
	{
		scoresList = result.ResultDictionary["data"] as List<object>;
		
		foreach(object score in scoresList)
		{
			var entry = (Dictionary<string,object>) score;
			var user = (Dictionary<string,object>) entry["user"];

			//	Obtener datos
			Debug.Log(user["name"].ToString());
			Debug.Log(entry["score"].ToString());
			
			//	Obtener imagen de perfil
			Image UserAvatar = FriendPic.GetComponent<Image>();
			FB.API("/"+user["id"].ToString()+"/picture?type=square&height=128&width=128", HttpMethod.GET, delegate(IGraphResult resultpic) {
				if(resultpic.Texture == null)	// error
				{

				}else{
					// Ejemplo de uso
					// UserAvatar.sprite = Sprite.Create(resultpic.Texture, new Rect(0,0,128,128), new Vector2());
				}
			});
			
			
		}
	}

	public static void SendScore(string score)
	{
		if(FB.IsLoggedIn){
			var scoreData = new Dictionary<string,string>();
			scoreData["score"] = score;
			FB.API("/me/scores",HttpMethod.POST, delegate(IGraphResult result) {
				Debug.Log("submit result:"+result.ToString());
			}, scoreData);
		}
	}

}