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1994-05-26
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GROWTH 3-Pack
Screen Savers for MS-Windows 3.1
Copyright (c) 1994 John Erbland
SYSTEM REQUIREMENTS
Your computer must be a 286 or higher, running Microsoft Windows
3.1 or higher.
ABOUT THE SCREENS
1. CORAL draws a multi-colored coral-like fractal starting at the
bottom of your screen. Imagine invisible particles heading
toward the bottom of the screen from random directions. As soon
as a particle arrives at a non-black location on the screen, it
"sticks", and acquires the same color. If it hits the bottom, it
will get a random color. This program was inspired by the
article "Nature's Algorithms", by Brian Hayes in the May-June 1994
issue of American Scientist.
2. LIFE is a random implementation of John Horton Conway's "Game of
Life", a system of cellular automata. Life was introduced to the
general public by Martin Gardner in his Mathematical Games
column of Scientific American magazine in the October 1970 issue.
The setting is a rectangular grid of square "cells", each of
which is "alive" or "dead". In a display of the grid, a dead
cell is simply left empty, or blank. A live cell is indicated by
the presence of some sort or marker, such as a solid circle. An
initial configuration is selected somehow. Subsequently, it is
replaced by a new "generation", and then another, and so on. A
new generation is related to its predecessor as follows:
- If a dead cell has exactly 3 living "neighbors", then it
will be alive in the next generation. ( Except at the edge
of the grid, a cell has 8 neighbors, which are the cells
adjacent to its corners plus those at its four sides. )
- If a live cell has fewer than 2 or more than 3 live
neighbors, then it will be dead in the next generation.
- Otherwise, the cell will not change.
3. STAINS paints randomly colored spots on your screen. They start
out small, but they grow until they cover a substantial portion
of the screen. (You choose how much.)
INSTALLATION
1. Extract CORAL.SCR, LIFE.SCR, and STAINS.SCR from GROWTH.ZIP
Since you are reading this, you have probably done this already.
2. Copy or move them to the Windows directory of your hard disk.
Usually, this is C:\WINDOWS:
COPY *.SCR C:\WINDOWS
3. In Windows, run Control Panel, and select Desktop. Go to the
screen saver selection box and scroll through the list to verify
that Coral, Life and Stains are present.
I encourage you to select each of them and click on the Test
button to see what it is like. Then click on the Setup button to
adjust parameters of the selected screen saver to your liking.
REGISTRATION
This is shareware, which means "try before you buy". If you like any
or all of the three enclosed programs, you should pay for the package.
The price is $15, payable in U.S. dollars, to:
Emergency Software Production
and send payment to:
John Erbland
Emergency Software Production
76 West Norman Avenue
Windsor, CT 06095
The price includes sales tax, if applicable.
In addition, source code (C++) for the entire package is available for $100.
SUPPORT
If you have a question or suggestion, either call (203) 727-0098, or
send e-mail to CompuServe ID 73740,3247. If you are not on
CompuServe, but have access to the Internet, you can send e-mail to
73740.3247@compuserve.com