Amazon GameLift FlexMatch であのゲームやこのゲームと同じマッチメイキングをやってみた

JSONNAME=<ファイル名(1v1.json や 4v4.json など)>
aws cloudformation create-stack --stack-name BuildersFlashSample \
--template-body file://template.yaml \
--parameters ParameterKey=RuleSetJsonBody,ParameterValue=\'$(cat $JSONNAME | tr -d ' ' | tr -d '\n' )\' ParameterKey=RuleSetJsonName,ParameterValue=BuildersFlash-$(uuidgen)

def main():
    players_attrs_def = get_player_attr_definition()
    with ThreadPoolExecutor(10) as executor:
        while True:
            executor.submit(start_matchmaking(players_attrs_def))
            executor.submit(get_matchmaking_result())
            executor.submit(monitor_players_status(players_attrs_def))
            time.sleep(REQUEST_INTERVAL)
            clear_matched_queue()

@retry(stop_max_attempt_number=3)
def start_matchmaking(players_attrs_def, target=None):
    gamelift = boto3.client("gamelift")
    Player = {
        "PlayerId": "".join(random.choices(string.ascii_lowercase, k=6)),
        "PlayerAttributes": {},
    }

    for attr in players_attrs_def:
        if attr["type"] == "number":
            Player["PlayerAttributes"][attr["name"]] = {
                "N": random.randint(0, 100)}
    gamelift.start_matchmaking(ConfigurationName=CONFIG_NAME, Players=[Player])
    add_waiting_players_list(Player)

def get_matchmaking_result():
    sqs = boto3.resource("sqs")
    queue = sqs.get_queue_by_name(QueueName="MatchResultQueue")

    for message in queue.receive_messages(MaxNumberOfMessages=10):
        match = json.loads(message.body)["detail"]
        integrate_results_players(
            match["gameSessionInfo"]["players"], match["matchId"])
        message.delete()


@retry(stop_max_attempt_number=3)
def integrate_results_players(players, matchId):
    match = {"matchId": matchId, "players": {}}
    for player in players:
        pid = player["playerId"]
        if pid in _waiting_players.keys():
            match["players"][pid] = _waiting_players.pop(pid)
            match["players"][pid]["Elapsed"] = {
                "N": elapsed_time() - match["players"][pid]["StartTime"]["N"]
            }
            del match["players"][pid]["name"]

    enqueue_matched_players(match)
    put_metrics(match)

{
    "name": "rankmatch",
    "ruleLanguageVersion": "1.0",
    "playerAttributes": [{
        "name": "LEVEL",
        "type": "number"
    }],
    "teams": [{
        "name": "teama",
        "maxPlayers": 1,
        "minPlayers": 1
    },{
        "name": "teamb",
        "maxPlayers": 1,
        "minPlayers": 1
    }],
     "rules": [{
         "type": "distance",
         "name": "level",
         "measurements": ["avg(teams[teama].players.attributes[LEVEL])"],
         "referenceValue": "avg(teams[teamb].players.attributes[LEVEL])",
         "maxDistance": 10
     }]
}

{
    "name": "rankmatch",
    "ruleLanguageVersion": "1.0",
    "playerAttributes": [{
        "name": "LEVEL",
        "type": "number"
    }],
    "teams": [{
        "name": "teama",
        "maxPlayers": 4,
        "minPlayers": 4
    },{
        "name": "teamb",
        "maxPlayers": 4,
        "minPlayers": 4
    }],
     "rules": [{
         "type": "distance",
         "name": "level",
         "measurements": ["avg(teams[teama].players.attributes[LEVEL])"],
         "referenceValue": "avg(teams[teamb].players.attributes[LEVEL])",
         "maxDistance": 10
     }]
}

{
    "name": "rankmatch",
    "ruleLanguageVersion": "1.0",
    "playerAttributes": [{
        "name": "LEVEL",
        "type": "number"
    }],
    "teams": [{
        "name": "teama",
        "maxPlayers": 4,
        "minPlayers": 4
    }, {
        "name": "teamb",
        "maxPlayers": 4,
        "minPlayers": 4
    }, {
        "name": "teamc",
        "maxPlayers": 4,
        "minPlayers": 4
    }],
    "rules": [{
        "name": "level",
        "type": "batchDistance",
        "batchAttribute": "LEVEL",
        "maxDistance": "20"
    }]
}

{
    "name": "rankmatch",
    "ruleLanguageVersion": "1.0",
    "playerAttributes": [{
        "name": "LEVEL",
        "type": "number"
    }],
    "teams": [{
        "name": "team",
        "maxPlayers": 50,
        "minPlayers": 41
    }],
    "algorithm": {
        "balancedAttribute": "LEVEL",
        "strategy": "balanced",
        "batchingPreference": "largestPopulation"
    }
}