sprengerjo

### Keybase proof

I hereby claim:

  * I am sprengerjo on github.
  * I am sprengerjo (https://keybase.io/sprengerjo) on keybase.
  * I have a public key ASA1R8bKPafq7TycNTQBmQU9ftqPS4H-R3mJ2g1DovXURwo

To claim this, I am signing this object:

sprengerjo

package de.sprengerjo.game.xtend;

import java.util.ArrayList;
import org.eclipse.xtext.xbase.lib.CollectionLiterals;
import org.eclipse.xtext.xbase.lib.ExclusiveRange;
import org.eclipse.xtext.xbase.lib.Functions.Function0;

@SuppressWarnings("all")
public class Game {
  private ArrayList<Integer> _scores = new Function0<ArrayList<Integer>>() {

sprengerjo

package de.sprengerjo.game.xtend

import static org.junit.Assert.*
import org.junit.Test
import org.junit.Before

class GameTest {
  var game = new Game()

	@Before

sprengerjo

@Test
  defvoid gutterGamesOnly() {
		(1..20).forEach[game.roll(0)]
		assertEquals(20 * 0, game.score())
	}

// the implementation so far...
class Game {
  
	def roll(int score) {

sprengerjo

// pretty cool way of saying: sum ‘+’ all values stored in ‘scores’, a is the result of the previous iteration, 
// b is the current value. 
[ scores.reduce[a, b | a + b ]] 

// You can also do something like this: 
scores.forEach[value, index | println(value + "@" + index)]