SDL-0.5.7: Binding to libSDL

Portabilityportable
Stabilityprovisional
Maintainerlemmih@gmail.com

Graphics.UI.SDL.Joystick

Description

 

Synopsis

Documentation

countAvailable :: IO IntSource

Counts the number of joysticks attached to the system.

tryName :: JoystickIndex -> IO (Maybe String)Source

Gets joystick name. Returns Nothing on error.

name :: JoystickIndex -> IO StringSource

Gets joystick name. Throws an exception on error.

tryOpen :: JoystickIndex -> IO (Maybe Joystick)Source

Opens a joystick for use. Returns Nothing on error.

open :: JoystickIndex -> IO JoystickSource

Opens a joystick for use. Throws an exception on error.

opened :: JoystickIndex -> IO BoolSource

Determines if a joystick has been opened.

index :: Joystick -> JoystickIndexSource

Gets the index of an Joystick.

axesAvailable :: Joystick -> IntSource

Gets the number of joystick axes.

ballsAvailable :: Joystick -> IntSource

Gets the number of joystick trackballs.

hatsAvailable :: Joystick -> IntSource

Gets the number of joystick hats.

buttonsAvailable :: Joystick -> IntSource

Gets the number of joystick buttons.

update :: IO ()Source

Updates the state of all joysticks.

getAxis :: Joystick -> Word8 -> IO Int16Source

Gets the current state of an axis.

getHat :: Joystick -> Word8 -> IO [Hat]Source

Gets the current state of a joystick hat.

getButton :: Joystick -> Word8 -> IO BoolSource

Gets the current state of a given button on a given joystick.

getBall :: Joystick -> Word8 -> IO (Maybe (Int16, Int16))Source

Gets relative trackball motion.

close :: Joystick -> IO ()Source

Force finalization of a previous opened Joystick. Only supported with GHC.