grav(1L)

NAME
grav - Draw a ball bouncing under gravity

SYNOPSIS
grav [-s]

DESCRIPTION
Grav draws on the current Mgr window outlines of a ball bouncing under the influence of gravity, losing energy at each bounce. The -s option slows the drawing process by waiting 90 milliseconds between snapshots.

BUGS
The program runs until interrupted, and then does not restore the foreground and background text colors to their previous values.

SEE ALSO
bounce(1L)