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Chipmunk Physics • View topic - Am I doing rouge shape correctly?

Am I doing rouge shape correctly?

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Am I doing rouge shape correctly?

Postby Doodlemeat » Sun Mar 16, 2014 3:57 am

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Re: Am I doing rouge shape correctly?

Postby slembcke » Sun Mar 16, 2014 11:01 am

Since the body is changing, you don't want to make a static body (static means something that doesn't change). If you create a normal body, you won't need to call cpSpaceReindexShapesForBody() each time you move the body.

Secondly, if you change the position/angle of a rogue body you usually also want to set the velocity/angular velocity to match. Otherwise the body will act like it teleports from place to place. When you teleport two objects into the same place, they mush apart like jelly as you say.
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Re: Am I doing rouge shape correctly?

Postby Doodlemeat » Sun Mar 16, 2014 1:58 pm

But say you want to make a platformer with a platform that moves back and forth. That body should not be affected with gravity or any other body that touches it. So how are you creating that without making it static? :O
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Re: Am I doing rouge shape correctly?

Postby slembcke » Sun Mar 16, 2014 6:51 pm

That's what rogue bodies are for. Because you don't add them to the space, they won't be simulated normally and you can update it as you want. Shapes attached to rogue bodies still react normally however.
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