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How to simulate a magnet (a field force) with box2d ?

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nullpoet

Post subject: How to simulate a magnet (a field force) with box2d ?

Posted: Sat Jan 14, 2012 10:40 pm

Joined: Sat Jan 14, 2012 2:53 am
Posts: 3

In my game, I need a magnet that attracts objects around it.
So, basically I need an attractive / repulsive force focused at a single point whose strength decreases with distance.
Is this doable with box2d ?
I couldn't figure it out. Any ideas on how to do it?
Thanks in advance!

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irresistible force

Post subject: Re: How to simulate a magnet (a field force) with box2d ?

Posted: Sun Jan 15, 2012 12:40 am

Joined: Tue Jun 24, 2008 8:25 pm
Posts: 1517
Location: Tokyo

You can apply a force to the bodies depending on how close they are. This is a little similar, might give you the idea:
http://stackoverflow.com/questions/6758 ... sing-box2d

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nullpoet

Post subject: Re: How to simulate a magnet (a field force) with box2d ?

Posted: Sun Jan 15, 2012 5:16 am

Joined: Sat Jan 14, 2012 2:53 am
Posts: 3

Thanks.. that helps.

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