Dot net in social gaming

.Net in Social Gamingby Yan Cui @theburningmonk theburningmonk.com

Name : Yan CuiIndustry : Social Gaming

• Social Gaming division of GameSys• .Net backend (mostly)• Amazon Web Services

• Top 30 grossing FB apps!• F# slots engine

Architecture Highlights

• Clients  Flash  iOS (objective-C & Lua)

• Web Servers  Written in C#  WCF with custom AMF binding  Hosted in Amazon EC2

• Messaging  Amazon SQS  Distributed  Highly scalable  Unordered delivery

• Monitoring  Method exec time/count  Error count  AOP to capture performance metrics  Amazon CloudWatch

• Slots Engine  Written in F#  The ‘brain’  Enforces game rules and maths model

• Persistence  Hot data  Cold data

Considerations

• Ease of use/maintenance• Cost• Speed• Ability to handle size• Ability to handle volume of transactions• Eventual/Strong consistency• Replication• ...

Choices (just to name a few...)

So many considerations...so many choices...

Different data = different requirements

Polyglot Persistence!

• Amazon SimpleDB• Amazon DynamoDB• CouchBase• Amazon S3• MySql via Amazon RDS• Google High Replication Data Store• Google Cloud Storage

Scalability Challenge

• 150 million requests/day  15x StackOverflow!

• 10s of GBs of analytics data/day  Google BigQuery  A/B testing

• 2500 requests / second  100+ commodity servers  Stateless servers

• 15K IO ops / second  Protocol-Buffer  5x faster than BinaryFormatter  60% smaller payload

Where F# comes in

Special Symbol CollectablesAvg Wager Size Wager Size Web Server call

• Line Win  X number of matching symbols on adjacent columns  Positions have to be a ‘line’  Wild symbols substitute for other symbols

• Scatter Win  X number of matching symbols anywhere  Triggers bonus game

What’s the player’s What symbols should land? new avg wager? What lines did the player bet on? How much did the player wager? Did the player win anything? Any special symbol wins? Should the player receive collectables?

State representation

New avg wager Got a Collectable! A pay line win!

Bonus Game!Betting small reduces avg wager!

Use collectables

Representing Monopoly board

Collected in the bonus game. Gives player extra ‘lives’. And a pay line win! Houses = multiplier on wins GAME OVERCoin size broughtover from main game

Thank You! @theburningmonktheburningmonk.com

Bingo.nethttp://apps.facebook.com/ilovebingoSuper Fun Townhttp://apps.facebook.com/superfuntownJackpot Joy Slotshttp://apps.facebook.com/jackpotjoyslotsLucky Gem Casinohttp://apps.facebook.com/luckygemcasinoJackpot Joy Casinohttp://apps.facebook.com/jackpotjoycasino

Dot net in social gaming

by Yan Cui on Jun 30, 2012

Accessibility

Categories

Upload Details

Usage Rights

2 Embeds 573

Statistics

Dot net in social gaming Presentation Transcript

http://theburningmonk.com	566
http://www.linkedin.com	7