Sidder fast - Kan ikke lure hvordan jeg skal sætte mine matches op..

package may;

public class Team {
    private String name;
    public Team(String name) {
        this.name = name;
    }
    public String getName() {
        return name;
    }
    @Override
    public String toString() {
        return name;
    }
}

package may;

public enum Result {
    NotPlayed,
    HomeWin,
    AwayWin
}

package may;

public class Match {
    private Team home;
    private Team away;
    private Result result;
    public Match(Team home, Team away) {
        this.home = home;
        this.away = away;
        this.result = Result.NotPlayed;
    }
    public Team getHome() {
        return home;
    }
    public Team getAway() {
        return away;
    }
    public Result getResult() {
        return result;
    }
    public void homeWin() {
        this.result = Result.HomeWin;
    }
    public void awayWin() {
        this.result = Result.AwayWin;
    }
    @Override
    public String toString() {
        return String.format("%s-%s:%s", home, away, result);
    }
}

package may;

import java.util.ArrayList;
import java.util.List;

public class Tournament {
    private List<Team> startTeams;
    private List<Team> activeTeams;
    private List<Match> round;
    private void initActiveTeams() {
        if(activeTeams == null) {
            activeTeams = new ArrayList<Team>(startTeams);
        }
    }
    public Tournament() {
        this.startTeams = new ArrayList<Team>();
        this.activeTeams = null;
        this.round = null;
    }
    public List<Team> getStartTeams() {
        return startTeams;
    }
    public List<Team> getActiveTeams() {
        initActiveTeams();
        return activeTeams;
    }
    public List<Match> getRound() {
        return round;
    }
    public void planRound() {
        initActiveTeams();
        round = new ArrayList<Match>();
        for(int i = 0; i < activeTeams.size() / 2; i++) {
            round.add(new Match(activeTeams.get(i), activeTeams.get(activeTeams.size() - 1 - i)));
        }
    }
    public void processRound() {
        activeTeams = new ArrayList<Team>();
        for(Match m : round) {
            switch(m.getResult()) {
                case NotPlayed:
                    throw new RuntimeException("Round not played");
                case HomeWin:
                    activeTeams.add(m.getHome());
                    break;
                case AwayWin:
                    activeTeams.add(m.getAway());
                    break;
            }
        }
    }
}

package may;

import java.util.Random;

public class Test {
    private static Random rng = new Random();
    public static void main(String[] args) {
        Tournament t = new Tournament();
        t.getStartTeams().add(new Team("A"));
        t.getStartTeams().add(new Team("B"));
        t.getStartTeams().add(new Team("C"));
        t.getStartTeams().add(new Team("D"));
        t.getStartTeams().add(new Team("E"));
        t.getStartTeams().add(new Team("F"));
        t.getStartTeams().add(new Team("G"));
        t.getStartTeams().add(new Team("H"));
        while(t.getActiveTeams().size() > 1) {
            t.planRound();
            System.out.println(t.getRound());
            for(Match m : t.getRound()) {
                if(rng.nextDouble() < 0.5) {
                    m.homeWin();
                } else {
                    m.awayWin();
                }
            }
            t.processRound();
            System.out.println(t.getRound());
        }
        System.out.printf("%s won\n", t.getActiveTeams().get(0).getName());
    }
}