To use this graphics-based version of the marine biology case study,
you will need to download the CMU graphics package and replace three
files in the case study.

DOWNLOAD THE GRAPHICS PACKAGE:
Download the CMU graphics package from CMU
         http://www.cs.cmu.edu/~mjs/
or the library Chris Nevison has created for Visual C++:
         http://cs.colgate.edu/APCSWeb/APCSgraphics.html
Sheila King has posted information about using the CMU Graphics
Package with the Academic Install (rather than full install) of
CodeWarrior:
         http://www.thinkspot.net/materdei/apcompsci/Graphics/index.html

MODIFY THE CASE STUDY:
Replace fishsim.cpp, display.h, and display.cpp with the files in
this folder.  (I would recommend keeping a copy of the original case
study program in another folder or directory.)  Also, copy waitnclear.h
and waitnclear.cpp into the case study folder and include
waitnclear.cpp in your project.  The WaitNClear function defined in
waitnclear.cpp is from the demo program in the CMU graphics package;
all I did was separate it out into its own file so that it could be
used by the case study program.

NOTE: If you are using Visual C++, you will not want to use the
CMU Graphics Pause function, declared in auxil.h.  In fishsim.cpp,
remove the line that includes auxil.h, and change the two
calls to Pause(500) to be Sleep(500) instead.  (Sleep is
provided in the Windows libraries.)  

If you are using a modern compiler that uses namespaces,
take out the comment in front of the line about using namespace std
in fishsim.cpp and leave out the ".h" when you include iostream and
fstream.  (Also iomanip in display.cpp.)

The files provided here, like the AP Marine Biology Case Study, are
free software; you can redistribute them and/or modify them under the
terms of the GNU General Public License as published by the Free
Software Foundation.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.