Past Meetup

[Claes Worm] - Flappy, an extended variant of the flappy-bird game in OCaml

This Meetup is past

27 people went

Every last Tuesday of the month

Location visible to members

Details

This talk is based on the codebase of 'Flappy' - an extended variant of the flappy-bird game written in OCaml.

The game was written as an example of how to write simple and purely functional games in OCaml - with an architecture resembling that of Elm's. It then also became a playground for tackling some common problems in game programming and FP; subtyping of entities and referencing entities from entities.

The focus of the talk will be:

* The Elm architecture in OCaml, or how to write a simple purely functional game in OCaml with the browser as backend
-- The details of the architecture - what is needed
-- What was my experience programming Flappy this way?
* How OCaml enables a unique form of typesafe subtyping of game-entities, using polymorphic variants.
* Referencing game-entities recursively in a purely functional program
-- How entity-referencing is solved in Flappy
-- Discussion of the problem in general, including pros and cons of solutions.
* Discussion of advantages and limitations of pure functional programming for games

The code can be found at GitHub: https://github.com/rand00/flappy

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We have set up a collaboration with Prosa, who generously offered to provide a location for our regular meetups. Please see Prosa's Calendar for more details: Prosa Calendar (https://www.prosa.dk/kalender/hele-kalenderen/)

The ADA meeting room fits about 25 people and if we need more space, we can use the canteen (PASCAL), which has a capacity of at most 50 (fire regulation).

Regards,

Ramón and Joakim