Joystick position

Joystick position is a draft programming task. It is not yet considered ready to be promoted as a complete task, for reasons that should be found in its talk page.

The task is to determine the joystick position and represent this on the display via a crosshair. For a centred joystick, the crosshair should appear in the centre of the screen. If the joystick is pushed left or right, then the cross hair should move left or right according to the extent that the joystick is pushed. If the joystick is pushed forward or pulled back, then the crosshair should move up or down according to the extent that that joystick is pushed or pulled. The edges of the display represent maximum extents for joystick movement. For example, a joystick pushed fully forward would raise the crosshair to the top centre of the screen. A joystick pulled backwards and to the right would move the crosshair to the bottom right of the screen (except for a small area reserved to show joystick status). Implementations can use a graphical display for the crosshair, or alternatively it is possible to represent the crosshair using a plus symbol on a terminal, and move the plus symbol position according to the joystick. The bottom part of the display can hide or show an alphanumeric sequence to represent the buttons pressed. For example, if pushbuttons 1,4 and 10 are depressed, we could display "1 2 A". The implemented code should continue to redraw the crosshair according to the joystick position and show the current pushbutton statuses until the task is terminated.