With only two user stories it was important for me to break each one down so I could easily see what needed to be done next. I set up everything for capybara and Sinatra to ensure that I would be able to test my app thoroughly.
At first I used global variables to store the player and the computer player instances. Once I had tested them and knew they were finished I made a game class which would store both the new player and computer player. While storing the game instance I used a class variable instead which allowed me to rid the global variables in my code.
Before I added a new method I made sure to write a test for it that would test the method as effectively as possible. I added a score instance for both players which is displayed on both the roundover page and the battle page.
Enjoy playing.