Examples with Rating com.faforever.server.entity.Rating used on opensource projects

Example 1 with Rating

use of com.faforever.server.entity.Rating in project faf-java-server by FAForever.

the class RatingServiceTest method calculateQuality.

@Test
public void calculateQuality() throws Exception {
    Rating left = new GlobalRating().setMean(1600d).setDeviation(30d);
    Rating right = new GlobalRating().setMean(900d).setDeviation(160d);
    double quality = instance.calculateQuality(left, right);
    assertThat(quality, is(0.16000885216755253));
}

Example 2 with Rating

use of com.faforever.server.entity.Rating in project faf-java-server by FAForever.

the class RatingService method teamsById.

private Map<Integer, ScoredTeam> teamsById(Collection<GamePlayerStats> playerStats, int noTeamId) {
    int highestTeamId = playerStats.stream().map(GamePlayerStats::getTeam).max(Integer::compareTo).orElse(noTeamId);
    Map<Integer, ScoredTeam> teamsById = new HashMap<>();
    for (GamePlayerStats playerStat : playerStats) {
        IPlayer player = new Player<>(playerStat.getPlayer().getId());
        jskills.Rating rating = new jskills.Rating(playerStat.getMean(), playerStat.getDeviation());
        int teamId = playerStat.getTeam();
        if (teamId == noTeamId) {
            // If a player is in the "no team" team, assign him to his own team
            teamId = playerStat.getPlayer().getId() + highestTeamId;
        }
        teamsById.computeIfAbsent(teamId, ScoredTeam::new).addPlayer(player, rating);
        teamsById.get(teamId).getScore().updateAndGet(score -> score + playerStat.getScore());
    }
    return teamsById;
}

Example 3 with Rating

use of com.faforever.server.entity.Rating in project faf-java-server by FAForever.

the class RatingService method calculateQuality.

public double calculateQuality(Rating left, Rating right) {
    jskills.Rating leftRating = ofNullable(left).map(rating -> new jskills.Rating(left.getMean(), left.getDeviation())).orElse(gameInfo.getDefaultRating());
    jskills.Rating rightRating = ofNullable(left).map(rating -> new jskills.Rating(right.getMean(), right.getDeviation())).orElse(gameInfo.getDefaultRating());
    Collection<ITeam> teams = Arrays.asList(new Team(new Player<>(1), leftRating), new Team(new Player<>(2), rightRating));
    return TrueSkillCalculator.calculateMatchQuality(gameInfo, teams);
}

Example 4 with Rating

use of com.faforever.server.entity.Rating in project faf-java-server by FAForever.

the class RatingService method updateRating.

private void updateRating(RatingType ratingType, GamePlayerStats stats) {
    Rating rating;
    switch(ratingType) {
        case GLOBAL:
            rating = ofNullable(stats.getPlayer().getGlobalRating()).orElseGet(() -> {
                GlobalRating initial = new GlobalRating();
                stats.getPlayer().setGlobalRating(initial);
                return initial;
            });
            break;
        case LADDER_1V1:
            rating = ofNullable(stats.getPlayer().getLadder1v1Rating()).orElseGet(() -> {
                Ladder1v1Rating initial = new Ladder1v1Rating();
                stats.getPlayer().setLadder1v1Rating(initial);
                return initial;
            });
            break;
        default:
            throw new ProgrammingError("Uncovered rating type: " + ratingType);
    }
    rating.setMean(stats.getAfterMean());
    rating.setDeviation(stats.getAfterDeviation());
    log.debug("New '{}' rating for player '{}' is: {}", ratingType, stats.getPlayer(), rating);
}

Example 5 with Rating

use of com.faforever.server.entity.Rating in project faf-java-server by FAForever.

the class RatingService method updateRatings.

/**
 * Updates the ratings of all players in {@code playerStats} as well as their global/ladder1v1 rating,
 * according to the outcome of the game <strong> without persisting the results</strong>.
 *
 * @param noTeamId ID of the "no team" team
 */
@SuppressWarnings("unchecked")
public void updateRatings(Collection<GamePlayerStats> playerStats, int noTeamId, RatingType ratingType) {
    Map<Integer, GamePlayerStats> playerStatsByPlayerId = playerStats.stream().collect(Collectors.toMap(stats -> stats.getPlayer().getId(), Function.identity()));
    Map<Integer, ScoredTeam> teamsById = teamsById(playerStats, noTeamId);
    List<ScoredTeam> teamsSortedByScore = new ArrayList<>(teamsById.values());
    teamsSortedByScore.sort(Comparator.comparingInt(o -> ((ScoredTeam) o).getScore().intValue()).reversed());
    int[] teamRanks = calculateTeamRanks(teamsSortedByScore);
    // New ArrayList is needed because the JSkill API doesn't handle subclass type parameters
    TrueSkillCalculator.calculateNewRatings(gameInfo, new ArrayList<>(teamsSortedByScore), teamRanks).entrySet().forEach(entry -> {
        Player<Integer> player = (Player<Integer>) entry.getKey();
        GamePlayerStats stats = playerStatsByPlayerId.get(player.getId());
        updatePlayerStats(entry, stats);
        updateRating(ratingType, stats);
    });
}