/// <summary>
/// 이미 다른 유저가 매칭 시도를 했을 경우
/// </summary>
/// <param name="user_no"></param>
/// <param name="responseStream"></param>
/// <returns></returns>
public static async Task <bool> RestoreMatchUser(long user_no, IServerStreamWriter <StartPlayReply> responseStream)
{
var db = Cache.Instance.GetDatabase();
var value = await db.StringGetAsync($"match_user:{user_no}");
if (value.HasValue)
{
// 매칭은 성공했으나 응답을 받지 못한 경우 백업 된 정보를 얻어온다.
var ret = await db.StringGetAsync($"restore_match_user:{user_no}");
if (ret.HasValue)
{
StartPlayReply reply = JsonParser.Default.Parse <StartPlayReply>(ret);
await SequentialMatchmaking.RemoveMatchUser(user_no, reply.MapId);
await responseStream.WriteAsync(reply);
// 전송 성공시 다음에 다시 사용되지 않도록 키값 삭제
await db.KeyDeleteAsync($"restore_match_user:{user_no}");
return(true);
}
else
{
Log.Information($"cannot find restore_match_user:{user_no}");
}
}
else
{
Log.Information($"cannot find match_user:{user_no}");
}
return(false);
}
public static async Task CancelStartPlay(Session session, IServerStreamWriter <CancelStartPlayReply> responseStream)
{
var db = Cache.Instance.GetDatabase();
// 다른 유저가 매칭 시도를 했을 경우
var value = await db.StringGetAsync($"match_user:{session.user_no}");
if (value.HasValue)
{
// 이미 매칭이 완료되었기 때문에 매칭 취소를 진행할 수 없다.
await responseStream.WriteAsync(new CancelStartPlayReply()
{
Code = ErrorCode.AlreadyMatch
});
return;
}
// 매칭 대기열에서 제거
await SequentialMatchmaking.RemoveMatchUser(session.user_no, session.map_id);
await responseStream.WriteAsync(new CancelStartPlayReply()
{
Code = ErrorCode.Success
});
}
/// <summary>
/// 매칭 조건이 맞지 않아 대기
/// </summary>
/// <param name="session"></param>
/// <param name="request"></param>
/// <param name="responseStream"></param>
/// <returns></returns>
public static async Task WaitStartPlay(Session session, StartPlayRequest request, IServerStreamWriter <StartPlayReply> responseStream)
{
var db = Cache.Instance.GetDatabase();
// 대기자로 등록
await db.KeyDeleteAsync($"match_user:{session.user_no}"); // 매칭 선점 클리어
await db.SortedSetAddAsync($"waiting_list:{request.MapId}", session.user_no, session.rating);
await db.StringSetAsync($"waiting:{session.user_no}", 0, startplay_polling_period);
// 조건에 만족하는 유저가 없다면 대기 (redis puh로 활성화)
var queue = Cache.Instance.GetSubscriber().Subscribe($"sub_user:{session.user_no}");
var cts = new CancellationTokenSource();
cts.CancelAfter((int)startplay_polling_period.TotalMilliseconds);
try
{
var ret = await queue.ReadAsync(cts.Token);
StartPlayReply reply = JsonParser.Default.Parse <StartPlayReply>(ret.Message);
try
{
// 매칭이 성공되었음을 알림
await responseStream.WriteAsync(reply);
// 다른 유저로 부터 매칭이 되었음을 받았다
// 매칭 정보를 삭제
await SequentialMatchmaking.RemoveMatchUser(session.user_no, request.MapId);
}
catch (InvalidOperationException)
{
Log.Information($"StartPlay restore match user {ret.Message}");
// 전송 실패시 매칭 데이터를 백업
await db.StringSetAsync($"restore_match_user:{session.user_no}", ret.Message, restore_match_user_expire);
}
}
catch (OperationCanceledException)
{
await SequentialMatchmaking.RemoveMatchUser(session.user_no, request.MapId);
// 대기시간 만료 클라이언트에게 타임 아웃 처리를 보낸다.
await responseStream.WriteAsync(new StartPlayReply()
{
Code = ErrorCode.Timeout,
IsStart = false
});
}
}
/// <summary>
/// 매칭 대상 (플레이어) 찾기
/// </summary>
/// <param name="session"></param>
/// <param name="request"></param>
/// <returns></returns>
public static async Task <(List <long>, Dictionary <string, ServerCommon.PlayerInfo>, List <StartPlayCharacterInfo>, bool)> SearchPlayer(Session session, StartPlayRequest request)
{
var db = Cache.Instance.GetDatabase();
Lobby.Session player_session = null;
var players = new Dictionary <string, ServerCommon.PlayerInfo>();
var character_list = new List <StartPlayCharacterInfo>();
long match_id = 0;
var player_list = new List <long>();
var waiting_list = await db.SortedSetRangeByScoreAsync($"waiting_list:{request.MapId}");
Log.Information($"waiting user ({string.Join(",", waiting_list)})");
bool result = false;
if (waiting_list.Length >= MAX_START_PLAYER_COUNT - 1)
{
match_id = await db.StringIncrementAsync("match_instance_id");
for (int i = 0; i < waiting_list.Length; ++i)
{
long user_no = (long)waiting_list[i];
Log.Information($"searching... waiting user {user_no}");
// 자신은 스킵
if (user_no == session.user_no)
{
continue;
}
if ((await db.StringGetAsync($"waiting:{user_no}")).HasValue)
{
// 매칭에 필요한 유저를 선점한다
if (await db.StringSetAsync($"match_user:{user_no}", match_id, match_user_expire, When.NotExists) == true)
{
player_session = await Session.GetSession(user_no, false);
if (player_session == null)
{
Log.Information("cannot find Session {0}", user_no);
await db.KeyDeleteAsync($"match_user:{user_no}");
continue;
}
ServerCommon.PlayerInfo player = new ServerCommon.PlayerInfo()
{
user_no = player_session.user_no,
character_type = player_session.character_type,
user_id = player_session.user_name,
team = (byte)(players.Count % (int)core.BaseStruggleTeam.TeamCount),
};
players.Add(player_session.session_id, player);
character_list.Add(new StartPlayCharacterInfo()
{
SelectedCharacter = player_session.character_type, UserId = player_session.user_name, Team = player.team
});
player_list.Add(user_no);
Log.Information($"Candidate User {user_no}");
if (player_list.Count == MAX_START_PLAYER_COUNT - 1)
{
result = true;
break;
}
}
else
{
Log.Information("already other match assign user {0}", user_no);
}
}
else
{
Log.Information("wait timeout user {0}", user_no);
// 유효하지 않는 유저는 대기자 목록에서 삭제한다.
await SequentialMatchmaking.RemoveMatchUser(user_no, request.MapId);
}
}
}
Log.Information($"StartPlay player_list ({string.Join(",", player_list)})");
return(player_list, players, character_list, result);
}
public static async Task StartPlay(StartPlayRequest request, IServerStreamWriter <StartPlayReply> responseStream, ServerCallContext context)
{
Log.Information($"StartPlay mapId:{request.MapId}, SelectedCharacter:{request.SelectedCharacter}, IsImmediatelyJoin{request.IsImmediatelyJoin}");
var session = await context.GetSession();
if (session == null)
{
await responseStream.WriteAsync(new StartPlayReply()
{
Code = ErrorCode.LostSession
});
return;
}
// 게임 시작 요청 정보를 캐싱
await session.UpdateSessionLock(request.SelectedCharacter, request.MapId, true);
if (request.IsImmediatelyJoin)
{
(bool ret, string server_addr, byte worldId, string channel_key, string channel_id) = await Channel.GetAvailableServer(request.MapId);
if (ret == false)
{
// 전투 가능한 서버가 없다
Log.Error($"Cannot find Server user_no:{session.user_no}");
await responseStream.WriteAsync(new StartPlayReply()
{
Code = ErrorCode.BusyServer
});
return;
}
var tmp_players = new Dictionary <string, ServerCommon.PlayerInfo>();
ServerCommon.PlayerInfo player = new ServerCommon.PlayerInfo()
{
user_no = session.user_no,
character_type = session.character_type,
user_id = session.user_name,
team = (byte)core.MathHelpers.GetRandomInt((int)core.BaseStruggleTeam.TeamCount),
};
tmp_players.Add(session.session_id, player);
var characters = new List <StartPlayCharacterInfo>();
characters.Add(new StartPlayCharacterInfo()
{
SelectedCharacter = session.character_type, UserId = session.user_name, Team = player.team
});
var reply = new StartPlayReply()
{
Code = ErrorCode.Success,
IsStart = true,
BattleServerAddr = server_addr,
WorldId = worldId,
MapId = request.MapId,
};
characters.ForEach(x => reply.CharacterList.Add(x));
await responseStream.WriteAsync(reply);
await SequentialMatchmaking.PubStartPlay(tmp_players, worldId, channel_id, session);
#pragma warning disable 4014
Task.Run(async() => await SequentialMatchmaking.WaitGameResult(channel_id));
#pragma warning restore 4014
return;
}
// 다른 플레이어로 인해 매칭이 시작 되었는지 확인
if ((await SequentialMatchmaking.RestoreMatchUser(session.user_no, responseStream)) == true)
{
return;
}
// 대기중이 플레이어 찾기
(var player_list, var players, var character_list, var search_success) = await SequentialMatchmaking.SearchPlayer(session, request);
if (search_success == true)
{
// 게임 시작
if ((await SequentialMatchmaking.StartPlay(player_list, players, character_list, session, request, responseStream)) == false)
{
// 예약했던 플레이어 취소
await SequentialMatchmaking.ClearReservedPlayer(player_list);
}
return;
}
// 예약했던 플레이어 취소
await SequentialMatchmaking.ClearReservedPlayer(player_list);
Log.Information("StartPlay waiting... {0}", session.user_no);
// 대기
await SequentialMatchmaking.WaitStartPlay(session, request, responseStream);
}
/// <summary>
/// 게임 플레이 시작
/// </summary>
/// <param name="player_list"></param>
/// <param name="players"></param>
/// <param name="character_list"></param>
/// <param name="session"></param>
/// <param name="request"></param>
/// <param name="responseStream"></param>
/// <returns></returns>
public static async Task <bool> StartPlay(List <long> player_list, Dictionary <string, ServerCommon.PlayerInfo> players, List <StartPlayCharacterInfo> character_list, Session session, StartPlayRequest request, IServerStreamWriter <StartPlayReply> responseStream)
{
// 매칭에 필요한 인원을 모두 찾았을때
// 전투 가능한 서버를 찾아 세팅
(bool ret, string server_addr, byte worldId, string channel_key, string channel_id) = await Channel.GetAvailableServer(request.MapId);
if (ret == false)
{
// 전투 가능한 서버가 없다
Log.Error($"Cannot find Server user_no:{session.user_no}");
await responseStream.WriteAsync(new StartPlayReply()
{
Code = ErrorCode.BusyServer
});
return(false);
}
ServerCommon.PlayerInfo player = new ServerCommon.PlayerInfo()
{
user_no = session.user_no,
character_type = session.character_type,
user_id = session.user_name,
team = (byte)(players.Count % (int)core.BaseStruggleTeam.TeamCount)
};
players.Add(session.session_id, player);
character_list.Add(new StartPlayCharacterInfo()
{
SelectedCharacter = session.character_type, UserId = session.user_name, Team = player.team
});
var reply = new StartPlayReply()
{
Code = ErrorCode.Success,
IsStart = true,
BattleServerAddr = server_addr,
WorldId = worldId,
MapId = request.MapId,
};
character_list.ForEach(x => reply.CharacterList.Add(x));
string reply_str = new JsonFormatter(new JsonFormatter.Settings(true)).Format(reply);
Log.Information($"StartPlay Reply {reply_str}");
// 매칭된 유저들에게 알림
for (int i = 0; i < player_list.Count; ++i)
{
await Cache.Instance.GetSubscriber().PublishAsync($"sub_user:{player_list[i]}", reply_str);
}
await SequentialMatchmaking.RemoveMatchUser(session.user_no, request.MapId);
// 배틀서버에 알림
await PubStartPlay(players, worldId, channel_id, session);
Log.Information($"StartPlay {session.user_no}, channel_msg:{channel_key}");
await responseStream.WriteAsync(reply);
// 매칭이 성공적으로 이루어졌으므로 이후 매칭 결과를 pub/sub으로 전달 받는다.
#pragma warning disable 4014
Task.Run(async() => await WaitGameResult(channel_id));
#pragma warning restore 4014
return(true);
}
