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- Hello, people.
-
- Swirl is just a little prog for doing pretty pics, sort of like one of those
- cellular automata things. Not sure really if it counts as a proper one.
- It is called swirl just for want of a better name and because most of the
- time it looks sort of swirlyish.
-
- You run it, you type in a number, which must be able to be assembled as an
- immediate constant (sorry), and you watch it.
-
- To save the screen to the CSD as 'screen' press shift-S.
-
- What it does - for each pixel, take the values of the four pixels directly
- next to it and add them together, then add the number you first thought of
- (or rather, the number you typed in), then shift right 2 places. Look at
- the program, it is quite short.
-
- There are a few steady states it seems to reach:
-
- Flat colour - for low #s
-
- A sort of thing like a bombed military installation in red and grey, if you
- use your imagination a bit - I got this using the number 2. Basically sort
- of rectangles with craters really.
-
- A mishmash of pastel greeny-yellowy-cyan with purpley bits and flecks of
- black which is not steady but maintains the same colours. This one is most
- common.
-
- Random pixels with few or no flat areas - this is with high numbers eg 200
-
-
- I haven't found a number which doesn't reach one of these. Anyway, just
- mess with it.
-
- Oh, and try grabbing a screen with shift-s at an aesthetically pleasing
- moment, ChangeFSI it to monochrome and it makes a rather nice backdrop.
- And you can tell all your friends it is a photo of the surface of Venus
- or something and really impress them. (or maybe not)
-
- Actually, I was pretty amazed that it did anything exciting at all. I
- thought it would just turn out to be a complete failure and always go to
- flat colour or random pixels or something.
-
- Have a nice day. (or a nice night, if you are reading this in the evening)
-
- David Fletcher, Arcade user #1093