Issue detected in Space Invaders on C64 - CrustyBASIC V1.3.0.

[coderzxy54]

Hi Telengard,

When I tested Space Invaders version on Vice emulator (C64), after a while, all the enemies shifted several columns to the left, and it became impossible to destroy them. I tested it twice, and the problem occurred both times.

Do you use AI to create your examples?

I think there are bugs to fix in the example, or perhaps in the CrustyBASIC V1.3.0 compiler (I'm not entirely sure; it needs checking). I haven't looked at the other examples due to a lack of time (sorry, there might be other bugs there too).

I also noticed that other bugs were reported by JavaJack (See Community Section: https://telengard.itch.io/crustybasic).

Regards,

CoderZXY54

[bsturk]

Thanks for the bug report.

I do use AI to assist yes, but I do a good chunk of the coding as well. AI needs a lot of hand-holding.

Based on your screenshot it also looks like a hit didn't register? I will fix the wraparound for the next release, my guess is it is the example itself. (update: it's a signed/unsigned issue, where X is going negative).

I did a lot of testing this last release for all the targets, but didn't play full games of invaders after every change. I may have to take even longer between releases for testing. There's 40/50 examples per target x 12 targets currently. The bulk of the work I'm doing now is testing/optimizing and tweaking and writing examples.

And no worries about the other examples, this feedback is good, thank you! I hope this example is more what you were looking for.

All the bugs posted by JavaJack have been fixed in this build (and previous builds) except for the Vic-20 exiting one, that was due to me being overzealous with the zero page.

[strangebeatgames]

Ciao,
I write here, so it will not show a bug.
Just discovered your basic, and I was able to compile some example, like balls, chip_sid, color_banner.
But I'm stuck on koala.cbs. The image doesn't show.

Any hint?
Also maybe you can open a discord channel (is free) or a forum, or en email for question/answer like the mine (silly, apology)
Best
Ale

@OPTION TARGET c64
@INCLUDE "api/image.cbi"

OK AS U8

REM  i try with "/koala.disk_files/CRUSTY.KLA" and i copy also the image in the same directory of source.
OK = IMAGE_LOAD_DISPLAY("CRUSTY.KLA")  
WHILE 1
ENDWHILE

[bsturk]

Ciao @strangebeatgames, thank you for the report, no need to apologize!

IMAGE_LOAD_DISPLAY reads from the C64 disk, not from the host filesystem.

Your source is correct (although you don't need the @include line, that happens automatically). What's missing is the image file. The files should be laid out like this.

koala.cbs
koala.disk_files/CRUSTY.KLA       <-- the koala.disk_files dir is where crustyBASIC looks for files to include in a d64 image, so CRUSTY.KLA will be added

Then build it as a d64:

crustybasic build koala.cbs --set output-type=disk -o koala.d64

You can also just build the original example in place like this:

crustybasic build examples/c64/crustybasic/koala.cbs

It should generate a .d64 ready to go

I'm going to revisit the disk_files thing, it seems a little cumbersome for user programs, it's useful for me to build the entire examples suite (there's now close to 1,500 examples built), but I will see what I can do to make that easier for the next release. I feel like the .KLA could be in the same directory as the .cbs listing and that should work.

As for Discord, I would /love/ to do that, but I have no idea what that entails or how to manage it.

[strangebeatgames]

Ciao @bsturk and good morning and thank you very much for your time (and CB too!)
Oh finally the image is showed :)
oh I learn also that the image name.suffix must be uppercase

Some thoughts:

1. the include line, was present into the original c64 koala example, but you are right, it work too whitout this :)
2. was it intentional for the image to load line by line (like the C64 loaders) rather than all at once?
3. as for where to place the images, I would honestly prefer that all elements (images, sid files) be in the same folder as the source.
4. is Koala the only recognised graphics format that CB can load?

About discord (that is free), if you wanna this is a fresh tutorial, or i can create one for you but i'm not so advanced in setup all the things like the man below
https://www.youtube.com/watch?v=8dbZ1HSZvaA
Ale