main.lua

--MAIN STORYBOARD FILE
local storyboard = require "storyboard"
storyboard.purgeAll( )

 ads = require( "ads" )

 function adListener( event )
    if ( event.isError ) then
        --Failed to receive an ad
    end
end

ads.init( "admob", "--publisher id goes here--", adListener )

ads.show( "banner", { x=display.screenOriginX, y=(display.contentHeight - display.screenOriginY)} )

--###########GPGS################

local gameNetwork = require( "gameNetwork" )
local playerName

local function loadLocalPlayerCallback( event )
   playerName = event.data.alias
   saveSettings()  --save player data locally using your own "saveSettings()" function
end

local function gameNetworkLoginCallback( event )
   gameNetwork.request( "loadLocalPlayer", { listener=loadLocalPlayerCallback } )
   return true
end

local function gpgsInitCallback( event )
   gameNetwork.request( "login", { userInitiated=true, listener=gameNetworkLoginCallback } )
end

local function gameNetworkSetup()
   if ( system.getInfo("platformName") == "Android" ) then
      gameNetwork.init( "google", gpgsInitCallback )
   else
      gameNetwork.init( "gamecenter", gameNetworkLoginCallback )
   end
end

------HANDLE SYSTEM EVENTS------
local function systemEvents( event )
   print("systemEvent " .. event.type)
   if ( event.type == "applicationSuspend" ) then
      print( "suspending..........................." )
   elseif ( event.type == "applicationResume" ) then
      print( "resuming............................." )
   elseif ( event.type == "applicationExit" ) then
      print( "exiting.............................." )
   elseif ( event.type == "applicationStart" ) then
      gameNetworkSetup()  --login to the network here
   end
   return true
end

Runtime:addEventListener( "system", systemEvents )

--################GPGS##############

storyboard.gotoScene("intro")
display.setStatusBar( display.HiddenStatusBar )