FRP.Helm

Contains miscellaneous utility functions and the main functions for interfacing with the engine.

Engine

run :: SignalGen (Signal Element) -> IO ()

Initializes and runs the game engine. The supplied signal generator is constantly sampled for an element to render until the user quits.

 import FRP.Helm
 import qualified FRP.Helm.Window as Window

 render :: (Int, Int) -> Element
 render (w, h) = collage w h [filled red $ rect (fromIntegral w) (fromIntegral h)]

 main :: IO ()
 main = run $ do
   dims <- Window.dimensions

   return $ fmap render dims

Utilities

radians :: Double -> Double

Converts radians into the standard angle measurement (radians).

degrees :: Double -> Double

Converts degrees into the standard angle measurement (radians).

turns :: Double -> Double

Converts turns into the standard angle measurement (radians). Turns are essentially full revolutions of the unit circle.

Prelude

module FRP.Helm.Color

module FRP.Helm.Graphics