Clojure Reactive Programming by Borges Leonardo

Author:Borges, Leonardo [Borges, Leonardo]
Language: eng
Format: azw3, epub, mobi
Publisher: Packt Publishing - ebooks Account
Published: 2015-03-22T16:00:00+00:00

There is quite a bit going on, so let's break it down.

canvas/entity is a monet constructor and expects you to provide three arguments that describe our ship: its initial x, y coordinates and angle, an update function that gets called in the draw loop, and a draw function that is responsible for actually drawing the shape onto the screen after each update.

The update function is fairly straightforward:

(fn [value] (-> value (assoc :x (shape-x ship)) (assoc :y (shape-y ship)) (assoc :angle (shape-angle ship))))

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