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Chipmunk Physics • View topic - Create a rotating wheel

Create a rotating wheel

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Create a rotating wheel

Postby Thom » Tue Nov 03, 2009 6:13 am

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Re: Create a rotating wheel

Postby Thom » Tue Nov 03, 2009 9:30 am

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Re: Create a rotating wheel

Postby slembcke » Tue Nov 03, 2009 9:38 am

Can't sleep... Chipmunks will eat me...
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Re: Create a rotating wheel

Postby Thom » Tue Nov 03, 2009 9:45 am

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Re: Create a rotating wheel

Postby slembcke » Tue Nov 03, 2009 9:45 am

Can't sleep... Chipmunks will eat me...
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Re: Create a rotating wheel

Postby Thom » Tue Nov 03, 2009 9:51 am

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Re: Create a rotating wheel

Postby Thom » Tue Nov 03, 2009 10:39 am

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Re: Create a rotating wheel

Postby slembcke » Tue Nov 03, 2009 11:09 am

You shouldn't move things by setting position/rotation explicitly. What happens is that you move the object, but you don't update it's rotational velocity. When things collide with it, they won't know how fast it's moving. They will only know that they somehow started overlapping with it and will get pushed apart by a corrective force that is much smaller than the one it needs for a collision with a moving object.

Not quite sure what you are trying to do with the pin joint, but I think maybe you need some other kind of joint. A pin joint attaches the two anchor points on each body by a pin or rod so that the anchor points stay the same distance apart as when the joint was created.
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Re: Create a rotating wheel

Postby Thom » Tue Nov 03, 2009 11:19 am

Ok I attached a sprite of the wheel because I don't think it's clear for everyone.
[img]wheel_large.png[/img]
So I have one main wheel and 4 squares around, I want when I rotate the wheel taht the squares rotates as well.
What kind of joint do you recommend ?
Thanks a lot for your help
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Re: Create a rotating wheel

Postby Thom » Tue Nov 03, 2009 12:04 pm

Alright I fixed it !!!
I create my squares around my circle and they all have the same PivotJoin it's works perfectly now.
Thank you for your help
Bye
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