Google Cloud Platform Gaming Summit 2016 Seoul, Korea

1. Focus on Gameplay, not
Infrastructure
Ian Lewis
ianlewis@google.com

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Is there a better way?

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Firebase is a powerful platform for
mobile and web applications.

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Firebase
User
Authentication
Realtime
Database
Static
Hosting

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Firebase
User
Authentication
Realtime
Database
Static
Hosting

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Firebase
User
Authentication
Realtime
Database
Static
Hosting

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Location Collaboration Gaming
Realtime is…

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Location Collaboration Gaming
Realtime is…
http://tinyurl.com/FireDraw

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Location Collaboration Gaming
Realtime is…

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Unreliable networks Multi Platform
Realtime is hard!
Complex Transport

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Unreliable networks Multi Platform
Realtime is hard!
Complex Transport

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Unreliable networks Multi Platform
Realtime is hard!
Complex Transport

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3 tier Architecture
Device API Server Database

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2 tier Architecture
Firebase
● Fast Development
● Scalability
Device

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2 Tier Architecture
Server
API
FirebaseDevice

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Development

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Google Authentication
private void getGoogleOAuthTokenAndLogin() {
AsyncTask<Void, Void, String> task = new AsyncTask<>() {
@Override
protected String doInBackground(Void... params) {
String scope = String.format("oauth2:%s", Scopes.PLUS_LOGIN);
String token = GoogleAuthUtil.getToken(this,
Plus.AccountApi.getAccountName(mGoogleApiClient), scope);
return token;
}
...

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Google Authentication
...
@Override
protected void onPostExecute(String token) {
Intent intentWithToken = new Intent(this,
OfficeMoverActivity.class);
intentWithToken.putExtra(AUTH_TOKEN_EXTRA, token);
startActivity(intentWithToken);
}
}

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Google Authentication
mFirebaseRef.authWithOAuthToken("google", authToken, new
Firebase.AuthResultHandler() {
@Override
public void onAuthenticated(AuthData authData) {
Log.v(TAG, "Auth success");
}
@Override
public void onAuthenticationError(FirebaseError firebaseError) {
Toast.makeText(getApplicationContext(),
"Auth failed. Please try again",
Toast.LENGTH_SHORT).show();
}
});

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Offline
var amOnline = new Firebase('https://<YOUR-FIREBASE>.firebaseio.com/.
info/connected');
var presenceRef = new Firebase('https://<YOUR-FIREBASE>.firebaseio.
com/presence/'
+ userid);
amOnline.on('value', function(value) {
if (value.val() === true) {
// Connected (or reconnected)!
presenceRef.onDisconnect().set(false); // one off, has to be reregistered
presenceRef.set(true);
}
});

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Reading Data
Firebase ref = new Firebase("https://<your-firebase>.firebaseio.com");
ref.child("background").addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(DataSnapshot dataSnapshot) {
System.out.println(dataSnapshot.getValue()); // prints “grid”
}
@Override public void onCancelled(FirebaseError error) { }
});

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Reading Data
Firebase ref = new Firebase("https://<your-firebase>.firebaseio.com");
ref.child("background").addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(DataSnapshot dataSnapshot) {
System.out.println(dataSnapshot.getValue()); // prints “grid”
}
...
});

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Writing Data
Firebase ref = new Firebase("https://<your-firebase>.firebaseio.com");
ref.child("background").setValue("grid");

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Writing Data
{
"background": ”grid”
}

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Writing Data
OfficeThing newThing = new OfficeThing();
newThing.setName(“Don Quixote”);
ref.child("object").setValue(newThing);

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Writing Data
{
"object" : {
"name" : "Don Quixote",
}
}

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Demo

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In the wild…

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CBS
50,000
concurrent
users
27,000,000
chat
messages

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Twitch.tv is the world's
leading video platform
and community for
gamers, and uses
Firebase to notify
users when a realtime
stream goes live.

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Where we used to
spend 50% of our
development time
building the backend,
we can focus now
95% of our time on the
actual application.
“
”

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200,000+
Developers

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Focus on Gameplay

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Mobile is
Important!

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Traditionally
Complex!

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https://firebase.com

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Thank you!
This work is licensed under a Creative Commons Attribution 2.0 Generic License.