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Index › Programming Questions & Help › Programs › particle repulsion
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particle repulsion (Read 1253 times)
rabidmachine9
particle repulsion
Nov 6th, 2009, 7:03am  
hello guys,
   sorry for making such a non-specific question,
but last days I've been looking for a good way to implement a repulsion algorithm.So I would like to have a particle that would move back when it hits to against another particle, or even better when I hit it with my mouse pointer.
if somebody can link me to a site with solutions to such problems that would be also welcome.
thanks in advance

peace
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gll
Re: particle repulsion
Reply #1 - Nov 6th, 2009, 7:56am  
Maybe there's two things: repulsion and collisions.

(repulsion)
Is based on spring and particles. There's no collisions in itself, it's an emergent behavior out of the repulsions. You may set your system to behave like every particles are avoiding each others.
http://www.cs.princeton.edu/~traer/physics
http://processing.org/discourse/yabb2/num_1139193613.html

(collision detection)
In this case, you detect if to shapes collides. Usually, it's simpler when you are using circles or spheres (you just have to calculate the distance between centers. It's more complex with arbitrary shapes.
http://processing.org/hacks/hacks:collision_detection
http://processing.org/discourse/yabb/YaBB.cgi?num=1113770101
http://processing.org/discourse/yabb2/?num=1190236595
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rabidmachine9
Re: particle repulsion
Reply #2 - Nov 6th, 2009, 10:22am  
thanks pal I'll check it out
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