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- u
- G O D O T L O A D E R
-
- by Arndt Dettke
-
- [Note:] I sent LOADSTAR 209 to Arndt
- so he could see his great GoDot
- program as presented here. He
- immediately responded:
-
-
- First off, thank you for promoting
- GoDot on Loadstar. I really appreciate
- seeing GoDot receiving some attention
- from such an important side like
- Loadstar. I also appreciate your
- "GoDot intro" article. It's just the
- right words at the right place that
- makes things go, and your words
- couldn't have been chosen more
- accurately. Thank you for this also!
-
- And now to something I have to
- apologize for: "ldr.Loadstar" has a
- bug in it! I loaded the Xmas SHP's on
- the disks to GoDot and was puzzled
- that some of them didn't display
- correctly. I then started Loadstar to
- see whether they were wrong from
- Loadstar, too. Of course, they were
- not.
-
- So, what was the bug? I suspected
- the background color being improperly
- set by the image data file itself, and
- yep! I was right: where there should
- be $01 (for "white") I found $f1! The
- upper nibble had not been zeroed (for
- any reason; maybe the upper nibble
- contains the border color?). This is
- really my fault, because I [know] this
- kind of bug, I've had to correct it
- already [several] times. In short, I
- didn't AND the upper 4 bits off.
-
-
- The loader will immediately be
- published on my site. I would ask you
- to put it on your next Loadstar disk
- also to provide best stuff. Again, I'm
- sorry for inconveniences.
-
-
- [Dave Here:]
-
- Thank you for the kind words! Bugs
- we know and the beautiful thing about
- a C-64 computer is that no matter how
- badly we mess things up, we can always
- shut off the power, turn it back on,
- and have a friendly and willing READY
- prompt waiting for us!
-
- The beautiful thing about GoDot is
- that loading and saving the many C-64
- and PC graphic formats is done through
- plug-in modules ("ldr.Loadstar" being
- the one that loads our SHP files)
- which can be upgraded.
-
- So the file "ldr.Loadstar" is on
- this disk. Use it to replace the file
- of the same name on your GoDot work
- disk. Suddenly, all is well with the
- world.
-
-
- [Back to Arndt:]
-
- By the way, you described in your
- intro how you worked on the photo of
- you and your wife and mentioned you
- had to get rid of some green spots in
- the image.
-
- Well, for this purpose the best
- thing to use is "mod..Histogram". It
- provides functions to swap two colors,
- or to join one or more colors to a
- third one. Just this function would be
- most appropriate here. Join green to
- the color that surrounds this green,
- and then green has vanished with no
- tracks left. :)
-
-
- [Dave Again:]
-
- Ah Hah! Here lies the power of
- GoDot! Every pixel contains its own
- color information -- four bits (0 -
- 15) for each pixel. The Histogram
- function described above can go
- through the entire graphic and look
- for the value for Green and convert it
- to the surrounding color.
-
- There are still little touches one
- might do with a bitmap editor,
- especially when converting photos to
- C-64 Multi-Color bitmap. But GoDot
- solves much of the (otherwise) grunt
- work.
-
- And more! Look at the GoDot
- Examples elsewhere on this issue. The
- possibilities are fantastic.
-
- AD & DMM
-
-
-