(Comp.sys.handhelds)
Item: 3718 by dougc at bert.cs.byu.edu
Author: [DOUG CANNON]
  Subj: Nifty 5K animation program for the HP48s!!
  Date: Thu Jul 18 1991

Hi Everybody.

   I have here what I believe to be a pretty neat animation program for the
HP48s.  I wrote it originally for the HP28s, but I converted it today to the
HP48s.
   The original idea came from just playing around with a program I wrote for
the IBM PC.  One could draw pictures with it and it would spew out 548 decimal
numbers that could then be typed into the HP28s and converted to a picture.
(Size 137 by 32) The Factory has 8 pictures for a total of 4384 numbers that I
spent over 6 hours typing into my HP28s.  I must have been just about crazy.
   Anyhow, even if you're not into this stuff too much, try it out!  It is only
10K when first downloaded, and after running setup it only takes up 5K of
memory!  I suggest you at least look at it and then throw it away if you don't
like it.  I think you can impress your friends with it.
   It will create a directory, and in that directory will be 11 files.  'SETUP'
must be run first, and it will set things up.  After running SETUP, there will
be only 9 files.  'DOIT' is the program that you run.  This will display the 8
picture animation until a key is pressed.  The other 8 files are graphics
objects, the 8 pictures to the animation.  You may notice that each graphics
object is of size 137 by 32 because that is the size of the HP28s screen.  So,
6 rows of pixels get cut off the right edge at no great loss.
   You may also notice that the program 'DOIT' is not very elegant in nature.
It was written this way to provide the fastest possible changing between
pictures and to give the smoothest possible animation.  The HP48s is much
slower with this application than was my HP28s, and I see no way of speeding up
this animation.  As it is, it seems to go fast enough.
   You can give this away, change it, mutilate it, or whatever...just give me a
little credit and I'm satisfied.
   One more thing.  Do me a favor and if you like this, just drop me an e-mail
note to let me know.  I'm curious if anybody is interested in this sort of
stuff.  Questions?  Feel free to ask.

Doug Cannon
dougc@bert.cs.byu.edu