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F# in social gaming

Yan Cui
Yan Cui

In this talk I talked about some of the use cases we have had for F# in the backend stack used to build our range of social games, and how F# has helped us achieve better 1) time to market; 2) efficiency; 3) correctness, and 4) dealing with complexity

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F# in Social Gaming
Yan Cui (@theburningmonk)
Who is Gamesys?

• Founded in 2001
• #1 in the UK

• Handle $5 Billion in turnover annually
• First company to launch real money gaming on Facebook

• Employ 1,000 globally
F# in social gaming
F# in social gaming
F# in social gaming
What is F#?
• Functional-first
• ML family of languages
• 1st class citizen on the .Net platform
– also supported by Mono

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F# in social gaming

Editor's Notes

  1. TODO: mention algebraic data types in relation to DU
  2. The biggest advantage of programming with the Actor model, for me, is the fact that each actor is self-contained and implements an explicit protocol, hence making them very easy to reason with and often it’s possible to look at the code and know that there’s obviously no defect rather than no obvious defect, and that distinction is important.The only operation with the inbox which requires synchronization (as far as I know) is with selective receive using inbox.Scan, otherwise, it’s inherently single-threaded inside the body of an agent (a property of the Actor model).
  3. This is where DU and pattern matching saved me days and possibly even weeks in writing and maintaining the infrastructure that powers our quest and achievement system.
  4. Mention other approaches such as using ActivePatterns with pattern matching, FsLex and FsYacc (lexer and parser generation tools), etc.
  5. * Strong consistency, atomic counters