gistfile1.txt

class Collider {
};

class SpecificCollider : public Collider {
};

struct ColliderDetails {
    std::unique_ptr<Collider> collider;

    ColliderDetails(ColliderDetails&& o) noexcept
    {
       collider = std::move(o.collider);
    }
};

int main() {
    SpecificCollider collider;

    ColliderDetails colliderDetail;
    colliderDetail.collider.reset(new Collider(collider));

    std::vector<ColliderDetails> colliderVector;
    colliderVector.push_back(std::move(colliderDetail));
    colliderVector.back()->callVirtualMethod() // <-- calls base class.
}