Bowling Kata

This project originated when a coworker introduced me to the concept of a coding "kata" (https://www.peterprovost.org/blog/2012/05/02/kata-the-only-way-to-learn-tdd), the idea that you should spend 30 mins a day practicing and honing your programming skills. I chose to do the Bowling Kata, and while I don't necessarily work on it every day, I do work on it in bits and pieces, test driving bits and pieces when I get the chance. Once I think I have a working solution, or close enough, I'll start writing IT's to test end to end correctness.

The basic idea of the Bowling Kata is simply to accept input around a game of bowling (i.e. pins knocked down) and then calculated the score given standard bowling rules (https://en.wikipedia.org/wiki/Bowling). I've tried to structure my objects in a reuseable and maliable way, to alter the structure if I want to tweek it down the road. For example, I've tried to avoid magic numbers around any pin calculations, in case there's a need for some super cool bonus round with 50 pins (have you ever played Wii bowling? They totally do it). I'm hoping that by the time this kata is over, I end up with maintainable, clear code that anyone could come along and use.