Read me for Assignment 3

Ballbounce.cpp
by Josh Allen
Designed with Dev-C++ 4.9.9.2

This program implements a simple physically-based world:  four
balls bouncing off of each other and other planes.  The quantity
and position of the objects are coded into the program.  The
collision detection of the various bodies is based on the assumption
that all collisions are with rigid bodies.

*NOTE:  This program does not implement angular velocity.  The spinning
of the balls is just for visual effect; it has no physical accuracy.

At first, only one ball is selected.  Press [Space] to step the
animation one frame, and press [Enter] to let the animation continue
for 500 frames.  Once you start the animation, you must wait for it
to end.  In addition, you can apply transformations to a ball by
pressing the following keys...

KEY	TRANSFORMATION
--------------------------------------------------------
R	Rotate around x-axis
F	Rotate around y-axis
V	Rotate around z-axis
T	Translate along x, positive direction
G	Translate along y, positive direction
B	Translate along z, positive direction
Y	Translate along x, negative direction
H	Translate along y, negative direction
N	Translate along z, negative direction

Press ',' and '.' to cycle between the balls.  Finally, pressing
'a' will toggle between selecting all of the balls.  When all the
balls are selected and you press [Enter], you set the full
animation in gear.

In addition, if you're tired of moving the balls around, you can
press F1 to move the balls to randomly generated positions in
the world.

'+' zooms in, '-' zooms out, and you can pan the camera by holding
the mouse down near the edges of the frame.