Do you already have a static shape? If so, just do this to change it to a active shape:

//remove the shape from the static hash
cpSpaceRemoveStaticShape(space, shape);

//set the mass of the new active shape
cpBodySetMass(shape->body, mass);

//add the shape and body to the active hashes
cpSpaceAddBody(space, shape->body);
cpSpaceAddShape(space, shape);

Hello, i was wondering how would i change an object from a static state to a dynamic state.

I have been told this:

"It's pretty simple actually. Create the body as normal (give it a normal mass), but do not add it to the space. Add the shape to the space as a static shape. Create a collision callback that does two things. 1) Add the body to space. 2) Remove the static shape from the space and re-add it as a normal shape."

But i am having trouble figuring out how to do this as i am used to Objective-C

Please help me with this