Hello.

I have released my 4k intro (and source) because I won't participate on a demoscene competition, and the intro size is 6kb after include stdlib on the executable, due some changes on latest TinyGL library. The name honors to this last problem with size and the theme of intro. I hope you enjoy with this little intro:

Overw8-bits

[ Edited by BalrogSoft 21.05.2014 - 23:20 ]

Hello Balrog!
It´s a shame I have my two MorphOS machines K.O. but I hope someone can grab it and upload to youtube.
Yes, I know It isn´t the same but...

Thanks for the intro!

Heh, nice retro intro.

Very nice indeed.

The source is a great example to learn from too, thanks! :)

It's just a tip, but maybe you could try dos.library Exit() instead of exit() from libnix?

Thanks to all for your support! It was my first 4-6k intro.

To BSzili:

Yes, I have tried Exit from Dos.library, but I have readed on Autodocs that this function expects that your program is written on BCPL :

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Anyway I have found a solution, RemTask(0) as a Exit alternative make it working!

I have to work now, but I will publish a new version at the end of the day.

This is a really nice little intro! Makes me feel all nostalgic

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That won't work correctly I'm afraid (it will nuke the shell when started from it, and leak WBStartupMsg if ran from Ambient).

This should do the trick however:

1. Only check for ESC in keys function. If it is found signal self with CTRL-C signal, telling glutMainLoop that the app is terminating:

Code:

2. Move cleanup that is in keys() function after glutMainLoop() call in main()/entry().




PS. Currently the app cannot be run safely from Ambient if compiled with NOSTARTUPFILES. For that to work you'd need to handle WBStartupMsg manually. Something like:

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[ Edited by Piru 22.05.2014 - 19:15 ]

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It works on my Macmini system.

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Unfortunately, It doesn't work, I tried it before. I can't exit pressing CTRL+C shortcut, and I can't exit sending a SIGBREAKF_CTRL_C signal.

I'm not aware about last changes on TinyGL, and MorphOS SDK doesn't contain any documentation about TinyGL, but whats the proper way to exit from glutMainLoop()? There aren't functions like glutLeaveMainLoop() or mglExit() implemented on TinyGL.

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Done, now it works properly with NOSTARTUPFILES defined.

This is the last version, only 3795 bytes:
Overw8-bits

[ Edited by BalrogSoft 22.05.2014 - 17:44 ]

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Trust me, it doesn't work correctly.


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Indeed, you're right. I missed that it doesn't work if idlefunc is specified. I'll fix this for future versions.

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Unfortunately in the current version there is no way other than hitting the window close gadget or calling exit() or longjmp().

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What's the problem exactly?

The first version with nostartupfiles isn't working? It works without nostartupfiles?

Have you tried the last version?

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It leaves very few options, I tried longjmp before, and it doesn't work with nostartfiles, it fails with a apparently random return code on the moment i use setjmp function on my code, even before setjmp is executed, exit function can't be used without stdlib. So windowed mode is the only correct solution.

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It kills the shell process when ran from shell. The shell window stays but the actual shell process goes away, effectively killing it.

Current version does work correctly when started from Ambient, though.

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It is not, when started from shell.

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calling exit() works correctly indeed.


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I don't need to. I know RemTask(0) from shell is not good for the shell.


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That is indeed correct, longjmp isn't any better than exit in this regard, as it also pulls in much of libnix.

The next release of TinyGL allows CTRL-C termination, even when idlefunc is used.

I have updated Overw8-bits, it runs in windowed mode when NOSTARTUPFILES is defined and it should work properly on all systems. There is two versions included, a 6kb versions that runs on fullscreen mode, and the 4k version that runs on windowed mode.

Edited:
I have found one bug, only one sound channel was working, now it works.

Overw8-bits

[ Edited by BalrogSoft 23.05.2014 - 13:22 ]

Nice little retro intro, sound sucks a bit, but i like the visuals...

BalrogSoft, I hope you don't get disheartened and do some more demos & intros :)

[ Edited by k8o 23.05.2014 - 13:36 ]

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Music is a very simple code music, it just one line of code, It was taken from this video:

https://www.youtube.com/watch?v=tCRPUv8V22o

This is the song:

((t*("363664689"[t>>13&7]&15))/12&128)+(((((t>>12)^(t>>12)-2)%11*t)/4|t>>13)&127);

There are very interesting readings about it, if you are interested, search on google this "music one line code".

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No, I want to make intros for MorphOS and Amiga classic, I have some ideas and code for another 4k intro. I'm working on a startup c code for classic Amigas also, but I have very few time for this kind of projects nowadays.

Since I got fired 3-4 years ago, I'm very busy trying to make some games, I have worked on some games with a ex coworker from the last company I have worked, but we got very few sales (I think mainly because these games were remakes of well known classic games), I'm trying to make my first game alone now, and trying to make an original game concept, but now I'm having problems to find a graphic artist. So it left very few time for demoscene projects.

The best part is that the game currently runs on MorphOS and other commercial platforms, so it will be published for MorphOS, but I don't know when it will be available.

Edited:

A new version is available, removed unused code, and replaced some for loops to while loops, it removes a few bytes more.

Overw8-bits