[Flightgear-devel] RFD: Changes to Joystick Properties

[David M. <da...@me...>]

I'm planning to migrate the joystick code to the new FGInput module
this weekend.  Part of the change will involve renaming the
properties.  Here's what we have right now:

/input/js0/axis0/*
/input/js0/axis1/*
/input/js0/button0/*
/input/js0/button1/*

etc.  These will change to

/input/joysticks/js[0]/axis[0]
/input/joysticks/js[0]/axis[1]
/input/joysticks/js[0]/button[0]
/input/joysticks/js[0]/button[1]

The extra path element is necessary so that we can easily create a
separate $FG_ROOT/joysticks.xml file and so that the joystick
properties are all grouped.  Note the similarity to the new key
binding scheme already in CVS:

/input/keyboard/key[0]/code

etc. (see $FG_ROOT/keyboard.xml for examples).

While we're here, is "joysticks" OK with everyone, or would you prefer
something more generic like "game-controllers" (too long?) or just
"controllers" (too confusing?); after all, a game pad, yoke, or pedals
will also show up here.

Apologies to Tony Peden, who (I notice) has just announced his new,
eagerly-awaited joystick config program.  I hope that the new property
names will require him to change only a couple of lines of code.


All the best,


David

-- 
David Megginson
da...@me...