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accrete-1.1.lha
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Accrete
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1992-04-09
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The program you have just downloaded is a C version of 'Accrete'.
The origional was written in pascal and ported to the II series using
an 8bit pascal compiler, 'Kyan Pascal'. Its a neat program but slow.
Even on my GS (without a Zip or Transwarp) it takes about forty five minutes
minimum for a Star System to be generated. This C version typically takes
about fifteen.
The author used extensive references to get this model just right.
I have not included them because of the size of the file (about 22k). If
you have FTP access you can get the references from: topgun.agps.lanl.gov
Look in the pub/usml directory.
If anyone wants it I will include the reference list and my source
code (i.e the Orca/C port) with this program. I refrained from this
because I didn't want to make the file too big and thus take a long time
to download.
For those who have never used Accrete before, what it does is
generate a star system using very precise methods based on current theory
of stellar system generation. The primary reference is Stephen Dole's work
'Habitable Planets for Man'. For any aspiring science fiction writers
out there this model is very close to what Poul Anderson does in his
article 'The Creation of Imaginary Worlds: The World Builder's Handbook and
Pocket Companion' in 'Writing Science Fiction and Fantasy' St.Martin's Press,
Copyright 1991. I would recommend this article for anyone interested in an
interesting non-technical look at what a planet needs to be habitable by man.
I have made some slight changes to the origional code (beyond that
necessary for the port to the GS). The original code only displayed the
results to the screen, I have changed this so the results are now saved
to a text file. The file will be written into the same directory that the
program is in so make sure you have room. Also, the name of the saved
file is 'New.System'. If you want to keep a system then you must rename
the saved file to somthing else before running Accrete.II again.
The only other change I have made is to the random number generator.
The origional used the number 25 for a seed. Since the GS has a built in
clock I have changed this so the program gets the seed from the number of
seconds on the clock.
Finally, while 'Accrete.II' will run from the finder I would
recommend using a shell like Orca/C or ECP16.
Enjoy!
- Joseph A. Nowakowski
- 420 West Delavan Ave
- Buffalo, NY
- 14213