Bowling Kata (in Crystal)

Rules of bowling

• Game consists of 10 frames.
  • in each frame player has 2 opportunities (rolls) to knock down 10 pins
  • score for a frame = total number of pins knocked down
  • and bonuses for spares and strikes
• Spare is when player knocks down all 10 pins in 2 tries
  • bonus = number of pins knocked down by the next roll
• Strike is when player knocks down all 10 pins in 1 try
  • bonus = number of pins knocked down in the next 2 rolls
• 10th frame
  • player who rolls spare or strike is allowed to do extra rolls to complete frame
  • however, no more than 3 rolls can be done in 10th frame

Requirements

• Write a class named Game that has following methods:
  • #roll(pins : Int) called each time player does a roll. pins argument is the number of pins knocked down by that roll
  • #score : Int is called only at the end of the game. It returns the total score of the game

Development

After cloning the repository:

• Use shards install to install development dependencies
• Use crystal spec to run the test suite

Contributing

1. Fork it ( https://github.com/waterlink/bowling_kata.cr/fork )
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create a new Pull Request

Contributors

• waterlink Oleksii Fedorov - creator, maintainer

Credits

Kata description is inspired by Uncle Bob's BowlingKata description