goin / bowling_game_kata

A version of bowling game with specs

Bowling Game KATA

A version of bowling game with specs

Environment:

Ruby 1.8.7 (should work for 1.9.3 also) Rspec 2

Structure

• lib bowling_game.rb # => Bowling game score calculation frame.rb # => generic Frame class with sub types sample.rb # => sample of inputs
• spec bowling_game_rspec.rb # => rspec tests README.txt example.rb # => code to run program and to see outputs for sample edge cases in sample.rb file

== Assumptions

  I rely on following assumptions base on your email and what I've got form Bowling game rules:

  * Valid rolls 
  * The input to your program is an array of arrays of integers. The program itself will support an array of arrays([[],[],[]]) and flat array [1,3,4,..]. But example.rb file was constructed only for what you requested for this task: an array of arrays.
  * Correct number of rolls and frames.
  * No need for error-checking the input data
  * All Strike sub-array except final frame would have one element in sub-array. 
  [[10],[3,4],........[10,3,0]]   - [10] expected input data
  [[10,0],[3,4],........[2,3]]    - [10,0] is not supported by this program for any strike frame except final

The program Bowling score calculation for classic ten-frame bowling game and 2 throws in each frame except last one where could be 3 throws due to strike or spare throw.

== How to run program

Open root folder of bowling_game in terminal and run below commands:

1. To run Rspec test

   rspec spec/bowling_game_rspec.rb -f d

2. To see some score per each frame for sample input data run following command:

   ruby example.rb # => Result are formatted into simple table without border and would be printed into console

   Output:

   Frame User almost_perfect Score
   1 10 30
   2 10 60
   3 10 90
   4 10 120
   5 10 150
   6 10 180
   7 10 210
   8 10 230
   9 10 240
   10 0 0 240
   Total Score: 240

   Frame User gutter Score
   1 0 0 0
   2 0 0 0
   3 0 0 0
   4 0 0 0
   5 0 0 0
   6 0 0 0
   7 0 0 0
   8 0 0 0
   9 0 0 0
   10 0 0 0
   Total Score: 0

   ...

By adding new data into TABLE (lib/sample.rb) you will see more results when you run example.rb file.