CS 4390 - Computer Graphics
Programming Assignment #1
Screen Saver
Due Oct. 9, 1998

Purpose:
      to become familiar with GLUT and OpenGL programming in the SGI lab

Task:
      Write a C program using GLUT and OpenGL calls to do a simple
      "bouncing ball" screen saver.  Specifically, your program should
      animate a circle moving across a black background, bouncing off
      the edges of the interface window.  The color of the ball should
      change every time it bounces off one of the edges.

Turn in:
      Your program should consist of a single file which should be commented
      with your name and any instructions needed for compiling and running
      your program.  This should be emailed as ASCII text to 
      cs4390@cc.gatech.edu.

      The time the mail is received will be used to determine whether or not
      the program is late, so be sure to allow a couple of minutes for the
      mail system to transmit your file if you are working right up to the
      deadline.  If necessary to send multiple files, tar them and then
      uuencode the results before mailing.  (Using MIME attachments to turn
      in files will make the grader crabby and result in much tougher program
      grading!)

Due date:
      This program is due on or before Friday, October 9.  This means it must
      be received by 11:59pm EDT on Friday to not be considered late.

Additional Instructions:

      At a minimum, your program should create a window of at least
      300x300 pixels with a black background, and animate a ball with
      a radius of at least 30 pixels bouncing off the edges, changing
      color with each bounce.  Bounces should follow the normal laws
      of physics (the angle of incidence = the angle of reflection).
      The ball's speed should be such that it can easily be followed
      across the screen, but not so slow that it takes forever to see
      one bounce.

      It may be possible to receive extra credit by doing interesting 
      things with the ball's velocity or size, but make sure that
      the basic program works before trying anything else.  If you
      do implement extra features, make sure they are documented fully
      at the beginning of your program.

Getting started:
      The GLUT libraries, documentation, and sample programs can be found
      in ~cs4390/GLUT.  A sample Makefile and main program can be found in
      ~cs4390/sample.