Game programing using functional reactive programming

2015-07-21 1951 speaker: Andreas Granstr"om event: Haskell.SG meetup ** FRP explicitly model time model continuous behavior and discrete events ** using netwire behaviors as WIre events as Event Wire is an instance of Arrow wires can produce or inhibit ** behaviors (continuous) time :: Wire a t for :: t -> Wire a a ** event hold :: Wire (Event a) a periodic :: t -> Wire a (Event a) ** switching a –> b a until inhibit, then b ** demo is a side scroller https://github.com/andreasg/FRPCopter

helicopter flying in a cave

game :: Wire’ SDL.Event Game

velocity uses switching to compute the velocity based on spaceUp/Down events