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M.M.T Chakravarty - Playing with Graphics and Animations in Haskell

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Published on Sep 13, 2016

Manuel Chakravarty's Keynote talk at Compose :: Conference in Melbourne, 2016.

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Graphics and animations are not only fun, they are also an effective learning tool. For example, fractal tree structures nicely illustrate recursion, and animations are often more motivating and engaging than examples and exercises spewing out text. In this talk, I will demonstrate graphics and animations in Haskell playgrounds — aka the REPL on steroids. The immediate feedback of playgrounds facilitates an explorative style of programming that is especially attractive for graphics programming.

Graphics, animation, and games programming in Haskell faces a dilemma. We can either use existing frameworks with their highly imperative APIs or we waste a lot of energy trying to re-engineer those rather complex systems from scratch. Or, maybe, we can escape the dilemma. Instead of a Haskell program directly manipulating the mutable object-graph of existing frameworks, we provide an API for purely functional transformations of a Haskell data structure, together with an adaptation layer that transcribes those transformations into edits of the mutable object-graph. I will illustrate this approach by describing the architecture of a Haskell binding to the animation system of Apple’s SpriteKit framework.
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http://www.composeconference.org/2016...

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