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*                                                                             *
*   Demo:   Crittersoap Demo 3 Type:    Amstrad CPC Emulator DSK File         *
*   Author: Odiesoft           Webpage: http://www.odiesoft.de                *
*   Size:   1 * 194816 Bytes   Date:    2. March 2003                         *
*   File:   Odiesoft Demos - Crittersoap Demo 3 (1993).dsk                    *
*                                                                             *
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Title: Crittersoap Demo 3
Year:  1993


Crittersoap, the son of Marabu wanted me to explain him how to write a demo in
Assembler. Every now and then I explained him some methods and routines in Z80
Assembler.

Usually I created a small program and then explained to him afterwards how it
worked. I wasn’t such a good teacher at that time and I think that Crittersoap
didn’t really learn this much from me. Or have you seen any other demos from
Crittersoap besides the first three?

This Crittersoap Demo 3 was created at the Castle Meeting 1a. Critty also wanted
to contribute to a meeting demo and asked me to help him with his part. He
explained me that he wanted a scroll text and a jumping HJT logo. Then I sat
down, created this demo and explained him afterwards how I did it and how he can
manipulate certain things with it, like enter text or change the graphics for
the HJT logo.

I had the feeling that there was something missing in this demo and since there
was still a lot of calculation time left I had the idea to add this fading
effect for the HJT logo.

I had seen a similar effect in some old CPC demo and I had an idea how I could
improve it. In the old demo the background was plain black, but I added the
chequered pattern that could even be scrolled horizontally.

Each frame just 1/8 of the jumping area was erased and filled with the chequered
pattern, so that it looks like the jumping HJT logo leaves a slowly fading trail
behind. When the chequered pattern was set to move horizontally only 1/8 of the
pattern moved with each frame, so that it looked rather weird for a scrolling.
Critty probably didn’t liked this scrolling since he turned it off.

The only thing Crittersoap really did by himself in this demo was typing the
scroll text. But so what, everybody has to start little - I wonder what he could
have become would he have stayed longer on the CPC...

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*                                                                             *
* This program can be distributed freely and without the need of a written    *
* of a written permission by Odiesoft, as long as it is distributed free of   *
* charge!                                                                     *
*                                                                             *
* If you had to pay for this, you've been ripped off!                         *
*                                                                             *
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