Kata: Bowling Game
Create a program, which, given a valid sequence of rolls for
one line of American Ten-Pin Bowling, produces the total
score for the game. This is a summary of the rules of the game:
- Each game, or "line" of bowling, includes ten turns, or "frames"for the bowler.
- In each frame, the bowler gets up to two tries to knock down all the pins.
- If in two tries, he fails to knock them all down, his score for that frame is the total number of pins Knocked down in his two tries.
- If in two tries he knocks them all down, this is called a "spare" and his score for the frame is ten plus the number of pins knocked down on his next throw (in his next turn).
- If on his first try in the frame he knocks down all the pins, this is called a "strike" His turn is over, and his score for the frame is ten plus the simple total of the pins knocked down in his next two rolls.
- If he gets a spare or strike in the last (tenth) frame, the bowler gets to throw one or two more bonus balls, respectively. - These bonus throws are taken as part of the same turn. If the bonus throws knock down all the pins, the process does not repeat: the bonus throws are only used to calculate the score of the final frame.
Kata: Bowling Game
- The game score is the total of all frame scores.
Here are some things that the program will not do:
- We will not check for valid rolls.
- We will not check for correct number of rolls and frames.
- We will not provide scores for intermediate frames.
The input is a scorecard from a finished bowling game, where "X" stands for a strike, "-" for no pins bowled, and "/" means a spare. Otherwise figures 1-9 indicate how many pins were knocked down in that throw.
Sample games:
12345123451234512345
always hitting pins without getting spares or strikes, a total score of 60
XXXXXXXXXXXX
a perfect game, 12 strikes, giving a score of 300
9-9-9-9-9-9-9-9-9-9-
heartbreak - 9 pins down each round, giving a score of 90
5/5/5/5/5/5/5/5/5/5/5
a spare every round, giving a score of 150
