home *** CD-ROM | disk | FTP | other *** search
-
-
- E L E P H A N T W A L K
-
- Program by the Anonymous Sprite Wrangler
-
- Text by Knees Calhoon
-
-
- NOTE: This program runs in 40 columns.
-
- Howard Halasz, a loyal LOADSTARite from Houston TX, sent me this PD
- 40-column demo and asked that I consider it for publication on LOADSTAR
- 128. It's a simple demo done in BASIC 128 7.0 that makes the most out of
- the sprite commands, commands that in BASIC 2.0 for the C-64 would be all
- POKEs. There is no mention of the author's name anywhere in the PD program,
- which is too bad, because he/she sure did a lot of good, hard work to make
- the animation lifelike and beautiful.
-
- I call it a demo because it is not interactive -- once you boot it up,
- it loads some support files and then shows a minute-long scene from the
- savannas of Africa. Once the scene is over the screen blanks for a few
- seconds then shows again. During the blanking you can press Q to quit to
- LOADSTAR if there's a LOADSTAR 128 disk in the current drive.
-
- Check out the code to see what all is involved in getting multiple
- sprites to move around the screen. Someone, perhaps the Wrangler, crunched
- the code by running it through a program that re-links the lines of the
- program, allowing for lines that are much longer than is ordinarily allowed
- by the BASIC editor. This made the program somewhat difficult to edit,
- which may be what the Wrangler had in mind. To make it even more difficult,
- he renumbered the program to start with line 0 and increment by 1.
-
- This meant that I had to renumber the program first, then when that
- worked, re-enter the first five or six lines which had BLOAD commands in
- them. Because he didn't specify the drive number in his BLOAD commands, the
- program defaults to drive 8. But now, since I added u(dv) to all BLOAD
- commands, the program runs from any drive, not just drive 8.
-
- NOTE: To me the DRIVE 8 bug for Commodore computers is the equivalent of
- the Y2K bug for behemoth computers. Why any programmer in the 1990s would
- presume that everyone has only one drive (drive 8) is beyond me. With
- drives going for $25 or less, I can't see why anyone would be content with
- one drive for their system. Please, programmers, before sending LOADSTAR
- your program for possible publication, make sure it runs just fine from any
- drive, not just 8. Of course, since the Wrangler didn't send me this
- program, he's off the hook.
-
- Ordinarily I'm not a fan of do-nothing programs, especially those in
- the 40-column mode for the C-128, but this one is especially well done. If
- the author of the program sees it on LOADSTAR and lets me know who he is,
- I'll pass the word on. The Sprite Wrangler is an artist as well as a
- programmer. By the way, I assume that he took the title for the demo from
- the 1954 film by William Dieterle, Elephant Walk, starring Peter Finch and
- an amazingly nubile Elizabeth Taylor. In the film, Pete and Liz find out
- why it's a bad idea to build a mansion on an old elephants' walking trail.
- They never forget and they don't really care if humans call the place
- "home". In Africa, elephants rule.
-
- On LOADSTAR 128, too.
-
- \\\\\ R - Run RETURN - Menu \\\\\
-
-