public btRotationalLimitMotor getRotationalLimitMotor(int index)
{
IntPtr cPtr = BulletDynamicsPINVOKE.btGeneric6DofConstraint_getRotationalLimitMotor(swigCPtr, index);
btRotationalLimitMotor ret = (cPtr == IntPtr.Zero) ? null : new btRotationalLimitMotor(cPtr, false);
return ret;
}