Gloss hides the pain of drawing simple vector graphics behind a nice data type and a few display functions. Gloss uses OpenGL under the hood, but you won’t need to worry about any of that. Get something cool on the screen in under 10 minutes.
Minimal example
-- | Display "Hello World" in a window.
import Graphics.Gloss
main :: IO ()
main =
display
(InWindow
"Hello World" -- window title
(400, 150) -- window size
(10, 10) -- window position
)
white -- background color
picture -- picture to display
picture :: Picture
picture =
-- shift the text to the middle of the window
Translate (-170) (-20) $
-- display it half the original size
Scale 0.5 0.5 $
-- the shape is a text
Text "Hello World"