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Index › Programming Questions & Help › Other Libraries › Manually moving objects in Jbox2D
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Manually moving objects in Jbox2D (Read 718 times)
sdevet
Manually moving objects in Jbox2D
Mar 20th, 2009, 9:40pm  
Jbox2D (and the wrapper BoxWrap2D) is looking very impressive. I'm a physicist, and I think I can make some fun demos with these tools.

I want to simulate a scenario with a vibrating floor - a rectangle that moves vertically in a sinusoidal manner. I can manually control the velocity of an object with 'setLinearVelocity', but I can't find an equivalent to let me set the object position.

Any ideas? This seems like a pretty standard thing to do.
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sloopidoopi
Re: Manually moving objects in Jbox2D
Reply #1 - Mar 21st, 2009, 3:29pm  
Hi,
i only worked with pure JBox2D, so i don't know if there is some difference in the BoxWrap2D lib.
The Body-class has a method setXForm(Vec2 position, float angle)  where you can set the position of a Body by code. (You must also specify the angle of the body !).
Here some example:
bodyX.setXForm(new Vec2(x,y), bodyX.getAngle());
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