Set, the card game: Difference between revisions

Line 173:

private static List<Card> createPackOfCards() {

List<Card> pack = new ArrayList<Card>();

List<Card> pack = new ArrayList<Card>(81);

for ( Number number : Number.values() ) {

for ( Colour colour : Colour.values() ) {

Line 198:

}

private static <T> List<List<T>> combinations(List<T> list, int r) {

private static <T> List<List<T>> combinations(List<T> list, int choose) {

List<List<T>> combinations = new ArrayList<List<T>>();

List<Integer> combination = IntStream.range(0, r).boxed().collect(Collectors.toList());

List<Integer> combination = IntStream.range(0, choose).boxed().collect(Collectors.toList());

while ( combination.get(r - 1) < list.size() ) {

while ( combination.get(choose - 1) < list.size() ) {

combinations.add(combination.stream().map( i -> list.get(i) ).toList());

int t = r - 1;

int temp = choose - 1;

while ( t != 0 && combination.get(t) == list.size() - r + t ) {

while ( temp != 0 && combination.get(temp) == list.size() - choose + temp ) {

t--;

temp -= 1;

}

combination.set(t, combination.get(t) + 1);

combination.set(temp, combination.get(temp) + 1);

for ( int i = t + 1; i < r; i++ ) {

for ( int i = temp + 1; i < choose; i++ ) {

combination.set(i, combination.get(i - 1) + 1);

}