ImpactCallbackFn typedef

ImpactCallbackFn = Pointer<NativeFunction<ImpactCallbackFnFunction>>

What b2w_setImpactCallback calls: the two bodies, and the speed (units per second) their shapes closed at.

Implementation

typedef ImpactCallbackFn =
    ffi.Pointer<ffi.NativeFunction<ImpactCallbackFnFunction>>;