The War-O code kata in Groovy.

To run:

• install Gradle from http://gradle.org
• configure numCards, numGames and players in config.groovy
• type (or script):

gradle run

Use a deck of N cards with no suits, just natural numbers from 1 to N. (as in Rack-O http://en.wikipedia.org/wiki/Rack-O)

Shuffle and deal N cards evenly to X players and a kitty.

For each round:

• Reveal a card from the kitty. This is the 'prize card'.
• Each player selects a 'bid' from his/her hand.
• Bids are revealed: highest bid wins points according to value of the prize card.

After all rounds, player with most points wins.

Deck is [1,2,3,4,5,6,7,8,9]

John's hand is [2,4,9] Alice's hand is [1,3,8] kitty is [5,6,7]

Round 1, prize card is 5 John bids 4, Alice bids 8 -> Alice wins 5 pts

Round 2, prize card is 6 John bids 9, Alice bids 1 -> John wins 6 pts

Round 3, prize card is 7 John bids 2, Alice bids 3 -> Alice wins 7 pts

Alice wins (12 pts) over John (6 pts)