GALAXY  Version 01



KEYWORDS

galaxy gravity star simulation Windows screen saver game



GALAXY  ABSTRACT

Simulates stellar motion under the influence of gravity. 
Create a field of stars, then watch how they pull and 
accelerate each other. Vary number of stars (2-1000), 
initial velocities, gravity constant. Watch how attractive 
forces send stars careening in new directions. Watch large 
patterns evolve over time (millions of years per minute). 
Doubles as Windows screen saver. Fast CPU advisable.



SYSTEM REQUIREMENTS

80386/486, Microsoft Windows 3.1 running in 386 enhanced mode.
Will be very slow unless you have hardware floating point
(DX type CPU or math coprocessor).



INCLUDED FILES

   readme.txt      2K    (this file)
   galaxy.exe     54K    executable program file
   galaxy.hlp     27K    online help file
   galaxy.ini    tiny    default parameter file
        *.ini    tiny    several optional parameter files     



INSTALLATION INSTRUCTIONS

Unzip the distribution file GALAXY.ZIP, using an output directory 
of your choice (e.g. c:\games\galaxy).  The above files are created.  
GALAXY.ZIP may then be deleted to save space.

If you wish to use GALAXY from other than this directory, use a 
directory that is included in your PATH environment parameter. 
From Windows File Manager, double-click the file GALAXY.EXE to 
start the program. Full instructions are now available from the 
online HELP menu.    



KNOWN DEFFICIENCIES

If the number of stars is large, and especially if your CPU is a 
slow one, the response to menu commands is sluggish.  This problem
persists in spite of the liberal use of Yield() calls.  I don't
know why.  Just wait a few seconds for the menu to respond.



REGISTRATION VIA COMPUSERVE

GO SWREG and select "register shareware".  When requested, enter 
registration ID 881.  Fee of US $10.00 will be booked to your 
Compuserve account.  Future versions may be downloaded without 
added fees.