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1995-02-13
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*************************************************************************
* *
* Conditions of use EDUSHOW 0.9 *
* ----------------- ----------- *
* *
* This program has been provided for the enjoyment of the masses. *
* It is Freeware. *
* Since the author doesn't ask for anything in return, the user *
* will accept the following conditions: *
* *
* 1) In no case whatsoever shall the author be liable for any *
* damages, losses etc... due to the use of this program. *
* 2) Distribution of the program is only allowed subject to the *
* following restrictions: *
* *
* 2.a) No file part of this distribution will be omitted or *
* modified in any way. *
* 2.b) None of the files which are part of this distribution *
* should be stored on environmentally unfriendly media. *
* (e.g. paper! (listings, faxes)) *
* *
* Laurence Vanhelsuwé *
* !!-MAY-92 *
* *
*************************************************************************
Program Title : EDUSHOW (Educational Slide Show) (Version 0.9)
-----------------------
Author : Laurence Vanhelsuwé
----------------------------
0. Quickstart
----------
Type at the prompt:
EDUSHOW script
and just play about with the keys: space bar, n(ext), p(rev),
backspace and q(uit).
1. EDUSHOW: What's that?
---------------------
Remember the classrooms with the blackboards and the nasty teachers ?
Yeah, me too!
Anyway, EDUSHOW is a kind of electronic blackboard for prepared
lessons (not improvised ones!).
A teacher's classroom schedule is usually extremely rigid: he or she
explains the subject matter with the help of diagrams and text and
arrows on the blackboard, using color if need be.
Every next step has been rehearsed mentally, so the way the lesson
flows is very rigid.
When the blackboard starts to get full with the accumulated formulae,
concepts, drawings, charts, etc... the slow students start to panic
because they all know that the board is about to be ...WIPED !!
... to make room for another blackboard filled with more intellectual
food (or dross in a lot of cases).
OK, so EDUSHOW closely mimics this archaic teaching technique.
The program differs from other slide show programs in that EDUSHOW
needs IFF pictures which have been DESIGNED with this strict
sequenced delivery of subjects in mind.
How are they designed ? Read on...
2. How to use it:
--------------
EDUSHOW Slides have to be carefully designed using a paint package.
As during your presentation you add concepts, theories, details
or whatever, in this same chronological fashion you should draw
these "subjects" on your slide IN DIFFERENT COLORS.
To be more precise: for every new "subject" that you want your slide
to explain, you color it in the next logical pen number.
Since pen number 0 is used by the black background for your slides,
you start by using pen 1, then 2,3,4,5,6,7.... etc.. upto pen 15.
(EDUSHOW currently opens 16-color HIRES Screens only).
When EDUSHOW displays a slide for the first time, it sets all pen
colors to black, except for pen 1 which is set to whatever color
you assigned it in your paint package.
Thus, you would typically use pen 1 just to draw the title or a heading
or the main centre of attention for this slide.
By pressing the space bar you "move on to the next related subject";
EDUSHOW reflects this by fading in the next pen from black (invisible)
to whatever color you set it to.
This way you progress through the hidden subjects which are contained
in your slide until
a) you reach the last subject of this slide or
b) you've reached pen #15 (which amounts to the same as a)
In which case you press 'n' (just the N key) to move on to the N-ext
slide, which typically contains a brand new set of concepts, theories,
formulae etc... (analogous to wiping the blackboard and moving to the
next heading in a text book).
The full list of controls is as follows:
SPACE = next color (next picture)
BACKSPACE = previous color
'n' = Next slide
'p' = Previous slide
'q' = Quit EDUSHOW
There are no mouse controls and therefore no menus either.
3. Requirements/Installation:
--------------------------
This program is run from the CLI with just one argument: the
filename of an ASCII file listing the filenames of the slides
you want EDUSHOW to use for the presentation.
The slides should be 640*200 4-plane IFF pictures.
4. Internals:
----------
EDUSHOW Caches all slides before the "lesson" starts so that there
are no loading delays during the presentation.
This might cause problems on machines with not much memory if many
slides are specified.
5. EDUSHOW Limitations/Warnings:
-----------------------------
!CRASH! EDUSHOW Has a hard-wired limit of 40 cached slides.
!CRASH! Watch out with the list of filenames: I count line feed characters
to determine the number of slides to load.
Don't add ANY extra line feeds after last filename!
6. History:
--------
A couple of years ago I got the pleasure of being asked to give
some basic assembler lessons to a group of interested Amiga club
members.
So I cooked up this little tool. (Which wasn't a good idea because
people were more fascinated with the medium (EDUSHOW) through which I
presented assembly language concepts than the contents of the lesson
itself !!).
The reason for releasing this old skeleton is because I was amazed
to find that AmigaVision (whizz, bang, zooooom) can't even handle
what EDUSHOW does. (at least not after hours of playing about with
AV which admittedly has a VERY user-friendly design system).
7. Credits:
--------
Any comments, ideas or bug reports?
My name and address are:
Laurence Vanhelsuwé
Christinastraat 105
B-8400 Oostende
BELGIUM
Enjoy !