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SHIVA
Copyright © CREATIVE FOCUS 1987
All Rights Reserved
This package contains:
SHIVA A graphic display program featuring the
fantastic Amiga blitter, and
README The text file you are reading right now.
Shiva is a light-hearted varient of John Conway's Game of Life. It is,
in fact, a screw-up I chanced upon when I was trying to figure out how
to implement Life with the blitter. In effect, it is a superset of the
ordinary Life rules, with the consequence that configurations tend to
spread instead of dampening out.
Nonetheless, it is close enough to ordinary Life that familiar structures
(e.g., gliders) behave as expected. To provide some extra pizzazz, I
rotate the solution bit-plane through all five bit-planes of the screen,
creating a colorful and ever-changing display.
For a particularly interesting effect, try the pattern:
ooo
o o
ooo .
This simple seed will grow into a complex and ever-changing universe
with four points of symmetry (a consequence of the toroidal structure of
the wrap-around screen). With the higher resolutions (i.e., with the
smaller cells) it seems to go on forever.
At the heart of the program is (implicitly) a nine-blit-per-generation
solution to the Game of Life that I intend to release separately, in
conjunction with an article on the blitter.
I wish to express special thanks to Scott Everndon and Alonzo Gariepy
for showing the way, and Tomas Rokicki for publishing a ten-blit
solution.
Jer */* July 12, 1987
************************************************************************
This program is freely redistributable, as long as this specific text
accompanies it, and no change is made to the executable code. Sale, in
any guise, of this program is strictly prohibited. Redistributors may
not place, or claim to place, any conditions on its further distribution.
I cannot guarantee that this program will do anything that you may
desire or expect. Use it at your own risk. However, I would appreciate
being informed if it seems not to perform as one might wish.
************************************************************************
CREATIVE FOCUS
Dr. Gerald Hull
25 Smith Hill Road
Binghamton, New York 13905
(607) 724-2638
PLINK: DRJERRY
BIX: ghull
[EOF]