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bouncing footballs
Sun Microsystems
1988
History 01-Nov-2000: Allocation checks
10-May-1997: Compatible with xscreensaver
01-Apr-1997: Curtis Larsen
The modification is only for the inroot option. It causes
the balls to see children of the root window and bounce
off of the sides of them. New windows are only recognized
after every init_bounce, because fvwm did not like xlock
setting SubstructureNotifyMask on root. I did not fix the
initial placement of balls yet, so they can start out
underneath windows.
18-Sep-1995: tinkered with it to look like bat.c .
15-Jul-1994: cleaned up in time for the final match.
04-Apr-1994: spinning multiple ball version
(I got a lot of help from with the physics of ball to ball
collision looking at the source of xpool from Ismail ARIT
22-Mar-1994: got rid of flashing problem by only erasing parts of the
image that will not be covered up by the next image.
02-Sep-1993: xlock version David Bagley
1986: Sun Microsystems
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