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Index › Discussion › Exhibition › flocking (from hell on drugs)
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flocking (from hell? on drugs?) (Read 3427 times)
landon9720
flocking (from hell? on drugs?)
Jan 27th, 2009, 11:51pm  
See my flocking project here: http://code.google.com/p/kuhn/

Google Code doesn't let me add an applet to a wiki page, so to run this you'll have to download the jar at: http://kuhn.googlecode.com/svn/trunk/flock/distrib/flock.jar and run it with "java -cp flock.jar kuhn.flock.Flock".

I based the core algorithm on the flocking example from this website. I added additional species and behaviors such as scavenging, hunting, and reproduction. I added additional aspects such as energy and death. I also made the camera pan, zoom, and rotate. Whew.

I'd love to hear what you think, or other ideas you have. I'm an absolute beginner to graphics programming and simulations, so any feedback would be appreciated.

Update: This is now hosted at http://landonkuhn.com/?page_id=7
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« Last Edit: Feb 25th, 2009, 12:07am by landon9720 »  
 
starkes
Re: flocking (from hell? on drugs?)
Reply #1 - Jan 28th, 2009, 5:40am  
throw it up on openprocessing.org, dude!
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landon9720
Re: flocking (from hell? on drugs?)
Reply #2 - Jan 28th, 2009, 5:54am  
I didn't know about this site. Cool!

Too bad I wrote it directly in Java. It doesn't look like this site supports plain old jar files. Sad Not yet anyway.
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PhiLho 
Re: flocking (from hell? on drugs?)
Reply #3 - Jan 28th, 2009, 6:50am  
Interesting. I appreciate the various kind of beasts, and how the camera goes toward areas of interest.

A little technical tip: in the MANIFEST.MF file, you can put the line:
Main-Class: kuhn.flock.Flock

Thus we don't have to go to command line (or make a bat/shell file) to run it.
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landon9720
Re: flocking (from hell? on drugs?)
Reply #4 - Jan 28th, 2009, 8:18am  
Thanks. I've added a manifest. Now the jar can be downloaded and executed without any command line arguments.

The logic to find a boid to follow is actually dirt simple. I planned something more elaborate, but this seems to work pretty well, so I left it.

Landon
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Dan_Olner
Re: flocking (from hell? on drugs?)
Reply #5 - Jan 30th, 2009, 3:58pm  
Very nice! I'm working on an adaptation of the flocking algorithm too. I completed an original for a course but it's sadly not appletized: my boid world had prey and predators, and I let them evolve by exchanging vector and field of view genes. They each have six fields of view, which have their own genes, and for each they react differently to prey and predator.

They didn't evolve flocking, but did evolve a very insectile chasing and running away behaviour. I must get on with that port to Processing...
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AtomBoy
Re: flocking (from hell? on drugs?)
Reply #6 - Jan 31st, 2009, 12:35am  
Super nice! I know it's probably not what you were after, but it reminded me of the animated title sequences to movies like The Pink Panther. I guess the colors and the jump cuts made me start looking for words like: "Directed By 12 Blue Birds". At first I wanted the world to be bigger, but now I'm not so sure it needs to be.

Thanks for sharing!
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landon9720
Re: flocking (from hell? on drugs?)
Reply #7 - Jan 31st, 2009, 12:45am  
Thanks. I've tried to make the source easily tweakable, so feel free to download it and play around. I'd actually like to make it full screen, but so far haven't figured out how to run it in OPENGL, which would be necessary to keep the frame rate up.

I also think it would be fun to give them some sort of objective (other than killing and eating each other, that is), and keep to score.
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landon9720
Re: flocking (from hell? on drugs?)
Reply #8 - Feb 25th, 2009, 12:07am  
I finally got around to hosting this someplace people can try it in a browser: http://landonkuhn.com/?page_id=7

If you haven't tried it, please do and let me know what you think.

-Landon
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Dan_Olner
Re: flocking (from hell? on drugs?)
Reply #9 - Feb 25th, 2009, 10:50am  
Very pleasing to watch as it gets busier. I notice in the code you've gone for default 2D - I had presumed it would have been P3D and you'd used a camera to achieve the zooming/panning, but no. Was that difficult?

One possible additional option: perhaps mouse or key could change the view to a stationary one of the whole field.
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landon9720
Re: flocking (from hell? on drugs?)
Reply #10 - Feb 25th, 2009, 4:50pm  
Actually, the camera movement was an afterthought, and was easy to add, thanks to processing's translate, rotate, and zoom functions. I simply call those functions to get the camera to the desired pan, zoom, and rotation, and then draw all the boids as normal. Along with the push and pop matrix functions, it's actually a fairly elegant and unique example of encapsulation.
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32Q2
Re: flocking (from hell? on drugs?)
Reply #11 - Feb 25th, 2009, 7:05pm  
Nice. Watching this reminds me a bit of something from 'Blue Planet' with the dolphins sharks and gulls
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dealga
Re: flocking (from hell? on drugs?)
Reply #12 - Feb 28th, 2009, 8:32pm  
magnificent, it's the battlefield of pseudo natural selection:) sort of sluggish in parts on my laptop but smooth on the desktop! inspirational
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Monstah
Re: flocking (from hell? on drugs?)
Reply #13 - Jun 12th, 2009, 6:50pm  
Dude, this is cool. Does it work like an ecosystem, like, predators, decomposers, and stuff? I think I saw a bunch of small green critters eating a dead guy, but I can't be sure.
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arkadian
Re: flocking (from hell? on drugs?)
Reply #14 - Jun 13th, 2009, 11:27am  
Very nice! Smiley
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