-- | Common definitions for all @gloss@ backends.
module FRP.Rhine.Gloss.Common (
  module FRP.Rhine.Gloss.Common,
  module X,
) where

-- gloss
import qualified Graphics.Gloss as X
import Graphics.Gloss.Interface.Pure.Game
import qualified Graphics.Gloss.Interface.Pure.Game as X

-- | Collect all settings that the @gloss@ backend requires.
data GlossSettings = GlossSettings
  { display :: Display
  -- ^ Display mode (e.g. 'InWindow' or 'FullScreen').
  , backgroundColor :: Color
  -- ^ Background color.
  , stepsPerSecond :: Int
  -- ^ Number of simulation steps per second of real time.
  }

-- | Some standard settings, a 400 x 400 window with grey background, at 30 FPS.
defaultSettings :: GlossSettings
defaultSettings =
  GlossSettings
    { display = InWindow "rhine-gloss" (400, 400) (10, 10)
    , backgroundColor = greyN 0.3
    , stepsPerSecond = 30
    }