imj-base-0.1.0.2: src/Imj/Example/DeltaRender/FromMonadReader.hs

{-# OPTIONS_HADDOCK hide #-}

-- | This example is related to "Imj.Graphics.Render.Delta" :
-- /from a 'MonadIO', 'MonadReader' 'DeltaEnv' monad/

module Imj.Example.DeltaRender.FromMonadReader
  ( main
  ) where

import Control.Monad.Reader(runReaderT)

import Imj.Graphics.Color
import Imj.Graphics.Render.FromMonadReader(drawStr, renderToScreen)
import Imj.Graphics.Render.Delta

helloWorld :: (Render e, MonadReader e m, MonadIO m) => m ()
helloWorld = do
  drawStr "Hello World" (Coords 10 10) (onBlack green)
  renderToScreen

main :: IO ()
main = runThenRestoreConsoleSettings $ newDefaultEnv >>= runReaderT helloWorld