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| Submitted on: 9/26/1999
By: Richard Lowe
Level: Not Given
User Rating:
By 103 Users
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Users have accessed this code 7996 times.
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| | | This program uses three simple rules for each BOID, which when applied in the correct proportion produce emergent flocking behaviour. This program is entirely based on the work of Craig Reynolds (http://htm.com/cwr/boid.htm). I developed this program after a debate with a c++ programmer, who said that VB wasn't up to the job. See what you think.
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Other 2 submission(s) by this author
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| Other User Comments |
9/27/1999 7:05:00 AM:Richard Lowe
If you would like any further
information....please mail me
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9/27/1999 7:17:00 AM:Bruce Reid
Excellent work! I'm also a huge Craig
Reynolds fan. I've been working on my
own boids for a few months now and was
having trouble with making Collision
Detection work in a fast enough way.
Hopefully your code will help me fill
in some blanks. Haven't looked at your
code yet, but your EXE looks great!
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9/27/1999 7:36:00 AM:Richard Lowe
Note : You can also add more obstacles
by clicking in the picture !!!
I
Should have mentioned that somewhere....
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9/27/1999 9:57:00 PM:Jeffrey Haluska
About 5 years ago I wrote a program in
VB that
was very similiar to this. (I
was 14)
In many ways this is
superior.
I always had problems with
the boids
flying through complex
objects too.
Keep up the great work.
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9/28/1999 6:52:00 AM:l_marvin
"I did this when I was 14" or "It was
my Year 1 work" is, not only
irrelevant, but a bit distasteful;
would people refrain from doing that.
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10/3/1999 7:51:00 PM:Herman
A marvelous piece indeed. To me it has
the kind of beauty of Kevino's 3D
Mathematical Plot(beyond my grasp
though, as I come from a different
profession).
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10/4/1999 3:02:00 PM:JOe
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10/5/1999 7:16:00 AM:Jeffrey Haluska
Well I did make this in the past and if
you dont like me saying so then dont
read my comments. And i didnt say it
before because i was being nice, but
mine was actually much better than this
one!
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10/5/1999 8:53:00 AM:Richard Lowe
Jeffrey. I did not take offense to your
comment, in fact I was quite impressed
that you did this at the age of 14.
I
would be interested to see your version
- please post it on this site
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10/5/1999 11:40:00 AM:Eric Miles
The correct web address for Craigs work
is
http://hmt.com/cwr/boid.htm
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10/5/1999 11:43:00 AM:Eric Miles
whoops I
meant:
http://hmt.com/cwr/boids.html
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10/5/1999 6:45:00 PM:Andrew
Wow! Although I don't know much about
boids, I am still very impressed with
what I am seeing. This is very cool.
Great work!!!
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10/5/1999 6:54:00 PM:Andrew
After visiting Craigs' web site on
boids, I have a better understanding of
boids. All I can say is that this is
probably beyond my skills at this time;
however, I am motivated to research
more on this. I think this is really
great stuff!
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10/6/1999 11:08:00 AM:l_marvin
(1) Re: Jeffrey's comment - This time
it is not distasting, it has become
disgusting now. (2) What make Richard's
posting outstanding is that it has
refresh input, hence it has live,
forget about technical aspect for a
moment (look at the many repeated old
topics every day on this site). 3.
Richard: Would you please take a look
of "Clear" button; a minor point
though, seems not working?
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10/6/1999 2:07:00 PM:Richard Lowe
Thanks for all the great comments
guys.
The Clear button does work - but
only when the boids are running - a
minor bug I know....
Please mail me
with any other bugs, suggestions....
I
intend to implement some of the other
grouping behaviours discussed by Craig
reynolds (seek, avoid, dock, etc) in
the next version.
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10/6/1999 2:30:00 PM:Paul
Way Cool... Richard! And I to would
like to see Jeffey's code! 5 years ago
---right????
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10/6/1999 5:10:00 PM:Bruce Johnson
Very very Nice.
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10/6/1999 5:36:00 PM:Jonathan Feucht
This is great! GREAT!!!
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10/6/1999 7:37:00 PM:Andrew
Hi Richard,
I think I have found
something interesting in this boids
simulation. This is what I have
discovered:
When I place more than a
dozen circular obstacles in a way
similar to a bowling pins placement
tightly with only a little room for the
boids (30 of them) to manuver, some of
boids actually would go through the
obstacles close to the curve area of
the obstacles (basically the boids
would go inside the obstacle a little
bit and come out quickly)! Is this
suppose to happen or is this because I
have not given them enough room to
avoid obstacles? If you can give me
some hints, that would be great.
Thanks.
Andrew
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10/6/1999 10:37:00 PM:Jeffrey Haluska
I sincerely did not try to be
distastesful. If you took it that way
(which Richard didn't) it is your
problem.
After rooting around for a
couple minutes, I actually DID manage
to find the code along with an email
reply I got from Craig Reynolds, a very
nice guy. I was wrong it was only 4
years ago.
As right now it doesn't
compile, cause it was written for VB
4.0 (I have VB 6.0 now), and my EXE
requires a VB40032.DLL.
If I get
time, I'll try to get it to work in
6.0, and upload it.
Also, if you
think it runs slow on your computer
with lots of boids, I originally had to
write it on a 486 66.
Jeff
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10/6/1999 11:34:00 PM:suresh
good program
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10/7/1999 3:46:00 PM:Richard Lowe
Andrew - It is quite possible that the
boids will go into an object. The
Calculations TRY to make them avoid
this - but if other obstacle or boids
get in the way - BANG. This is also
true in Nature - birds, fish etc will
try to avoid hitting and obstacle - but
don't always succeed - If you read the
multitude of documentation on the net
about boids - you will find this is
very common. If you change the maths to
try to ensure they boids avoid the
obstacles - the flocking behavoiur
falls apart.
Jeff - glad you found
the code - look forward to seeing it -
let me know if you need any help in the
conversion.
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10/8/1999 12:30:00 AM:Bryan Cairns
That's one of the most amazing things i
have seen done in VB - great job
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10/8/1999 10:21:00 AM:Richard Lowe
Jeff - Thanks for the code - It looks
great. I too was inspired by Steven
Levy's book Artifical Life - a great
read.
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10/16/1999 8:44:00 AM:122
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10/16/1999 8:45:00 AM:John Doe
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10/16/1999 5:38:00 PM:Russ Smith
What an incredible piece of work - I am
fascinated by these "BOID" things and
have begun to research them. Sadly I
didn't even realize such a thing could
be done in VB - not to mention it being
done in so very few lines of code.
GREAT JOB!
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10/21/1999 9:12:00 AM:Lupine
i have seen this before on the site. i
like it alot very good work
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10/25/1999 2:06:00 AM:Shambler
Very slick indeed. Time for a group
session of "screw you!" to all the C++
snobs...
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10/26/1999 7:45:00 PM:Chen Gang
A Bug. When set Sensor Range to 0,a
runtime error arises and the app exits.
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10/31/1999 4:58:00 AM:Alexandre Moro
Guys,
Apart from any bug, I think MANY
congratulations go to Richard by
implementing such algorithm in
VB.
This is EXTREME DIFFICULT, I know
what I'm talking about...
Richard,
parabéns!!!
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1/24/2000 10:19:40 AM:OmarSwan
Great Work.
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3/23/2000 6:51:56 PM:Armen Nalian
It is great!!!!!!
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9/25/2000 1:43:07 AM:Craig Reynolds
Despite the fact that it was almost
a
year ago that Richard Lowe told me
about
his VB boids implementation, I
am just
now getting around to updating
my boids
page to include a link to
this page.
(BTW after two domain
changes my page is
now at
http://www.red3d.com/cwr/boids/)
Sorry
for the delay, and happy flocking!
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7/30/2001 10:25:13 PM:brewguru99
Wow! a celeb!
BTW - I recently
re-downloaded this program and am
currently implementing my own version,
with added AI attributes... Oohhhhh I'm
so excited about this.
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