Bowling Game: Array of Frames: Step 13

The Frame::Sum method now looks like this:

        int Sum(const Frame& next) const
        {
            if (rollOne + rollTwo == 10)
                return 10 + next.rollOne;
            return rollOne + rollTwo;
        }

And the Game::Score method looks like this:

    int Score() const
    {
        return std::accumulate(std::begin(frames), std::end(frames), 0, [](int acc, const Frame& frame) { return acc + frame.Sum((&frame)[1]); });
    }

We need to reach into the next Frame instance to grab the spare’s bonus roll, and I did this by passing it by reference into the Sum method. That frame.Sum((&frame)[1]) implementation is hideous.

Let’s refactor and when that’s done, click Next