Added a warning against scam. Die, scammers!

Common/Data/Excel/HouseFurniturePosData.cs

@@ -0,0 +1,18 @@
+namespace MikuSB.Data.Excel;
+
+[ResourceEntity("house/FurniturePos.json")]
+public class HouseFurniturePosExcel : ExcelResource
+{
+    public uint AreaId { get; set; }
+    public uint GroupId { get; set; }
+
+    public override uint GetId()
+    {
+        return (AreaId << 48) | (GroupId << 32);
+    }
+
+    public override void Loaded()
+    {
+        GameData.HouseFurniturePosData.TryAdd(GetId(), this);
+    }
+}

Common/Data/Excel/SupportAffixExcel.cs

@@ -0,0 +1,27 @@
+using Newtonsoft.Json;
+using Newtonsoft.Json.Linq;
+
+namespace MikuSB.Data.Excel;
+
+[ResourceEntity("item/support/affix.json")]
+public class SupportAffixExcel : ExcelResource
+{
+    [JsonProperty("ID")] public int Id { get; set; }
+    [JsonExtensionData] public IDictionary<string, JToken> ExtraData { get; set; } = new Dictionary<string, JToken>();
+
+    public int TierCount =>
+        ExtraData
+            .Where(x => x.Key != "ID" && x.Key != "Sift" && x.Key != "Comment")
+            .Select(x => x.Value)
+            .OfType<JObject>()
+            .Select(x => x.Count)
+            .DefaultIfEmpty(0)
+            .Max();
+
+    public override uint GetId() => (uint)Id;
+
+    public override void Loaded()
+    {
+        GameData.SupportAffixData[Id] = this;
+    }
+}

Common/Data/Excel/SupportAffixPoolExcel.cs

@@ -0,0 +1,35 @@
+using Newtonsoft.Json;
+
+namespace MikuSB.Data.Excel;
+
+[ResourceEntity("item/support/affix_pool.json")]
+public class SupportAffixPoolExcel : ExcelResource
+{
+    [JsonProperty("ID")] public int Id { get; set; }
+    public List<int> AffixGroup1 { get; set; } = [];
+    public int Weight1 { get; set; }
+    public List<int> AffixGroup2 { get; set; } = [];
+    public int Weight2 { get; set; }
+    public List<int> AffixGroup3 { get; set; } = [];
+    public int Weight3 { get; set; }
+    public List<int> AffixGroup4 { get; set; } = [];
+    public int Weight4 { get; set; }
+
+    public IEnumerable<(IReadOnlyList<int> Affixs, int Weight)> Groups
+    {
+        get
+        {
+            if (AffixGroup1.Count > 0 && Weight1 > 0) yield return (AffixGroup1, Weight1);
+            if (AffixGroup2.Count > 0 && Weight2 > 0) yield return (AffixGroup2, Weight2);
+            if (AffixGroup3.Count > 0 && Weight3 > 0) yield return (AffixGroup3, Weight3);
+            if (AffixGroup4.Count > 0 && Weight4 > 0) yield return (AffixGroup4, Weight4);
+        }
+    }
+
+    public override uint GetId() => (uint)Id;
+
+    public override void Loaded()
+    {
+        GameData.SupportAffixPoolData[Id] = this;
+    }
+}

Common/Data/Excel/SupportCardExcel.cs

@@ -1,4 +1,5 @@
-using Newtonsoft.Json;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Linq;
 
 namespace MikuSB.Data.Excel;
 
@@ -11,7 +12,12 @@ public class SupportCardExcel : ExcelResource
     public uint Level { get; set; }
     public uint Icon { get; set; }
     public uint ProvideExp { get; set; }
+    public uint Color { get; set; }
     [JsonProperty("LevelLimitID")] public int LevelLimitId { get; set; }
+    [JsonProperty("AffixPool")] public List<int> AffixPool { get; set; } = [];
+    [JsonProperty("AffixCost")] public JToken? AffixCostRaw { get; set; }
+    [JsonProperty("InitialAffixCost")] public JToken? InitialAffixCostRaw { get; set; }
+    [JsonProperty("FixedAffixCost")] public JToken? FixedAffixCostRaw { get; set; }
 
     public uint MaxLevel => LevelLimitId switch
     {
@@ -21,6 +27,19 @@ public class SupportCardExcel : ExcelResource
         _ => 10
     };
 
+    public int InitialAffixCount => Color >= 5 ? 2 : 1;
+
+    public int TotalAffixCount => Color >= 5 ? 3 : 2;
+
+    [JsonIgnore]
+    public IReadOnlyList<uint> AffixCost => ParseFlatCost(AffixCostRaw);
+
+    [JsonIgnore]
+    public IReadOnlyList<IReadOnlyList<uint>> InitialAffixCost => ParseNestedCost(InitialAffixCostRaw);
+
+    [JsonIgnore]
+    public IReadOnlyList<uint> FixedAffixCost => ParseFlatCost(FixedAffixCostRaw);
+
     public ulong TemplateId => GameResourceTemplateId.FromGdpl(Genre, Detail, Particular, Level);
 
     public override uint GetId() => Icon;
@@ -29,4 +48,23 @@ public class SupportCardExcel : ExcelResource
     {
         GameData.SupportCardData.Add(this);
     }
+
+    private static IReadOnlyList<uint> ParseFlatCost(JToken? token)
+    {
+        if (token is not JArray array)
+            return [];
+
+        return array.Select(x => x.Value<uint>()).ToArray();
+    }
+
+    private static IReadOnlyList<IReadOnlyList<uint>> ParseNestedCost(JToken? token)
+    {
+        if (token is not JArray outer)
+            return [];
+
+        var result = new List<IReadOnlyList<uint>>();
+        foreach (var entry in outer.OfType<JArray>())
+            result.Add(entry.Select(x => x.Value<uint>()).ToArray());
+        return result;
+    }
 }

Common/Data/Excel/SupportFixedExcel.cs

@@ -0,0 +1,18 @@
+using Newtonsoft.Json;
+
+namespace MikuSB.Data.Excel;
+
+[ResourceEntity("item/support/fixed.json")]
+public class SupportFixedExcel : ExcelResource
+{
+    [JsonProperty("ID")] public int Id { get; set; }
+    public int Num { get; set; }
+    public List<uint> Item { get; set; } = [];
+
+    public override uint GetId() => (uint)Id;
+
+    public override void Loaded()
+    {
+        GameData.SupportFixedData[Id] = this;
+    }
+}

Common/Data/GameData.cs

@@ -23,6 +23,9 @@ public static class GameData
     public static Dictionary<uint, SpineExcel> SpineData { get; private set; } = [];
     public static Dictionary<uint, NodeConditionExcel> NodeConditionData { get; private set; } = [];
     public static List<SupportCardExcel> SupportCardData { get; private set; } = [];
+    public static Dictionary<int, SupportAffixExcel> SupportAffixData { get; private set; } = [];
+    public static Dictionary<int, SupportAffixPoolExcel> SupportAffixPoolData { get; private set; } = [];
+    public static Dictionary<int, SupportFixedExcel> SupportFixedData { get; private set; } = [];
     public static Dictionary<uint, WeaponSkinExcel> WeaponSkinData { get; private set; } = [];
     public static Dictionary<uint, DailyLevelExcel> DailyLevelData { get; private set; } = [];
     public static Dictionary<uint, ProfileExcel> ProfileData { get; private set; } = [];
@@ -31,6 +34,7 @@ public static class GameData
     public static Dictionary<uint, WeaponPartsExcel> WeaponPartsData { get; private set; } = [];
     public static Dictionary<uint, GuideExcel> GuideData { get; private set; } = [];
     public static Dictionary<uint, DormGiftExcel> DormGiftData { get; private set; } = [];
+    public static Dictionary<uint, HouseFurniturePosExcel> HouseFurniturePosData { get; private set; } = [];
 }
 
 public static class GameResourceTemplateId

Common/Database/Inventory/InventoryData.cs

@@ -1,4 +1,4 @@
-using MikuSB.Enums.Item;
+using MikuSB.Enums.Item;
 using MikuSB.Proto;
 using SqlSugar;
 
@@ -10,19 +10,19 @@ public class InventoryData : BaseDatabaseDataHelper
     public uint NextUniqueUid { get; set; } = 100000;
 
     [SugarColumn(IsJson = true)]
-    public Dictionary<uint, BaseGameItemInfo> Items { get; set; } = [];  // Key: UniqueId
+    public Dictionary<uint, BaseGameItemInfo> Items { get; set; } = [];
 
     [SugarColumn(IsJson = true)]
-    public Dictionary<uint, GameWeaponInfo> Weapons { get; set; } = [];  // Key: UniqueId
+    public Dictionary<uint, GameWeaponInfo> Weapons { get; set; } = [];
 
     [SugarColumn(IsJson = true)]
-    public Dictionary<uint, GameSkinInfo> Skins { get; set; } = [];  // Key: UniqueId
+    public Dictionary<uint, GameSkinInfo> Skins { get; set; } = [];
 
     [SugarColumn(IsJson = true)]
-    public Dictionary<uint, GameSupportCardInfo> SupportCards { get; set; } = [];  // Key: UniqueId
+    public Dictionary<uint, GameSupportCardInfo> SupportCards { get; set; } = [];
 
     [SugarColumn(IsJson = true)]
-    public Dictionary<uint, uint> SkinTypesBySkinId { get; set; } = [];  // Key: nSkinId, Value: client nType
+    public Dictionary<uint, uint> SkinTypesBySkinId { get; set; } = [];
 }
 
 public class BaseGameItemInfo
@@ -63,6 +63,7 @@ public abstract class GrowableItemInfo : BaseGameItemInfo
 public class GameWeaponInfo : GrowableItemInfo
 {
     [SugarColumn(IsJson = true)] public Dictionary<uint, ulong> PartSlots { get; set; } = [];
+
     public override Item ToProto()
     {
         var proto = new Item
@@ -79,14 +80,17 @@ public class GameWeaponInfo : GrowableItemInfo
                 Evolue = Evolue
             }
         };
-        foreach (var (slot, uid) in PartSlots) proto.Slots[slot] = uid;
+        foreach (var (slot, uid) in PartSlots)
+            proto.Slots[slot] = uid;
         return proto;
     }
 }
+
 public class GameSkinInfo : BaseGameItemInfo
 {
     [SugarColumn(IsJson = true)] public Dictionary<uint, ulong> PartSlots { get; set; } = [];
     public uint SkinType { get; set; }
+
     public override Item ToProto()
     {
         var proto = new Item
@@ -97,15 +101,17 @@ public class GameSkinInfo : BaseGameItemInfo
             Flag = (uint)Flag,
         };
         proto.Slots[(uint)ItemSkinSlotTypeEnum.SLOT_CARD_SKIL_TYPE] = Math.Min(SkinType, 1);
-        foreach (var (slot, uid) in PartSlots) proto.Slots[slot] = uid;
+        foreach (var (slot, uid) in PartSlots)
+            proto.Slots[slot] = uid;
         return proto;
     }
 }
 
-
 public class GameSupportCardInfo : BaseGameItemInfo
 {
     public uint AffixId { get; set; }
+    [SugarColumn(IsJson = true)] public List<uint> Affixs { get; set; } = [];
+
     public override Item ToProto()
     {
         var proto = new Item
@@ -120,6 +126,7 @@ public class GameSupportCardInfo : BaseGameItemInfo
                 Exp = Exp
             }
         };
+        proto.Enhance.Affixs.AddRange(Affixs);
         proto.Slots[(uint)ItemSupportCardSlotTypeEnum.SLOT_AFFIXINDEX] = AffixId;
         return proto;
     }

Common/Internationalization/Message/LanguageCHS.cs

@@ -222,9 +222,16 @@ public class HelpTextCHS
 public class AccountTextCHS
 {
     public string Desc => "管理 SDK 登录使用的账号映射";
-    public string Usage => "用法: /account create <邮箱> <UID>";
+    public string Usage =>
+        "用法: /account create <邮箱> <UID>\n" +
+        "用法: /account delete <邮箱|UID>\n" +
+        "用法: /account list";
     public string Created => "已创建账号映射: {0} -> UID {1}";
     public string CreateFailed => "创建账号映射失败: {0}";
+    public string Deleted => "已删除账号映射: {0} -> UID {1}";
+    public string DeleteFailed => "删除账号映射失败: {0}";
+    public string DeleteOnline => "账号在线时无法删除: {0} -> UID {1}";
+    public string NotFound => "未找到账号: {0}";
 }
 
 /// <summary>

Common/Internationalization/Message/LanguageCHT.cs

@@ -222,9 +222,16 @@ public class HelpTextCHT
 public class AccountTextCHT
 {
     public string Desc => "管理 SDK 登入使用的帳號映射";
-    public string Usage => "用法: /account create <郵箱> <UID>";
+    public string Usage =>
+        "用法: /account create <郵箱> <UID>\n" +
+        "用法: /account delete <郵箱|UID>\n" +
+        "用法: /account list";
     public string Created => "已建立帳號映射: {0} -> UID {1}";
     public string CreateFailed => "建立帳號映射失敗: {0}";
+    public string Deleted => "已刪除帳號映射: {0} -> UID {1}";
+    public string DeleteFailed => "刪除帳號映射失敗: {0}";
+    public string DeleteOnline => "帳號在線時無法刪除: {0} -> UID {1}";
+    public string NotFound => "未找到帳號: {0}";
 }
 
 /// <summary>

Common/Internationalization/Message/LanguageEN.cs

@@ -188,9 +188,16 @@ public class HelpTextEN
 public class AccountTextEN
 {
     public string Desc => "Manage account mappings for SDK logins";
-    public string Usage => "Usage: /account create <email> <uid>";
+    public string Usage =>
+        "Usage: /account create <email> <uid>\n" +
+        "Usage: /account delete <email|uid>\n" +
+        "Usage: /account list";
     public string Created => "Created account mapping: {0} -> UID {1}";
     public string CreateFailed => "Failed to create account mapping: {0}";
+    public string Deleted => "Deleted account mapping: {0} -> UID {1}";
+    public string DeleteFailed => "Failed to delete account mapping: {0}";
+    public string DeleteOnline => "Cannot delete account while online: {0} -> UID {1}";
+    public string NotFound => "Account not found: {0}";
 }
 
 /// <summary>

Common/Util/ConfigManager.cs

@@ -19,6 +19,11 @@ public static class ConfigManager
         //LoadHotfixData();
     }
 
+    public static void SaveConfig()
+    {
+        SaveData(Config, ConfigFilePath);
+    }
+
     private static void LoadConfigData()
     {
         var file = new FileInfo(ConfigFilePath);
@@ -43,9 +48,26 @@ public static class ConfigManager
             Config = JsonConvert.DeserializeObject<ConfigContainer>(json)!;
         }
 
+        Config.Loader.Arguments = NormalizeLoaderArguments(Config.Loader.Arguments);
         SaveData(Config, ConfigFilePath);
     }
 
+    private static string[] NormalizeLoaderArguments(string[]? arguments)
+    {
+        var result = new List<string>(arguments ?? []);
+        var userDataDirectory = Path.GetFullPath(Path.Combine(AppContext.BaseDirectory, "Client_User_Data"));
+        Directory.CreateDirectory(userDataDirectory);
+
+        var userDirArgument = $"-userdir={userDataDirectory}";
+        var existingIndex = result.FindIndex(x => x.StartsWith("-userdir=", StringComparison.OrdinalIgnoreCase));
+        if (existingIndex >= 0)
+            result[existingIndex] = userDirArgument;
+        else
+            result.Add(userDirArgument);
+
+        return result.ToArray();
+    }
+
     private static void LoadHotfixData()
     {
         var file = new FileInfo(HotfixFilePath);

GameServer/Command/Commands/CommandAccount.cs

@@ -2,6 +2,7 @@ using MikuSB.Database;
 using MikuSB.Database.Account;
 using MikuSB.Enums.Player;
 using MikuSB.Internationalization;
+using MikuSB.GameServer.Server;
 using System.Text;
 
 namespace MikuSB.GameServer.Command.Commands;
@@ -37,6 +38,42 @@ public class CommandAccount : ICommands
         }
     }
 
+    [CommandMethod("delete")]
+    public async ValueTask Delete(CommandArg arg)
+    {
+        if (!await arg.CheckArgCnt(1))
+            return;
+
+        var identifier = arg.Args[0].Trim();
+        var account = int.TryParse(identifier, out var uid) && uid > 0
+            ? AccountData.GetAccountByUid(uid)
+            : AccountData.GetAccountByUserName(identifier);
+
+        if (account == null)
+        {
+            await arg.SendMsg(I18NManager.Translate("Game.Command.Account.NotFound", identifier));
+            return;
+        }
+
+        try
+        {
+            if (Listener.GetActiveConnection(account.Uid) != null)
+            {
+                await arg.SendMsg(I18NManager.Translate("Game.Command.Account.DeleteOnline", account.Username,
+                    account.Uid.ToString()));
+                return;
+            }
+
+            AccountData.DeleteAccount(account.Uid);
+            await arg.SendMsg(I18NManager.Translate("Game.Command.Account.Deleted", account.Username,
+                account.Uid.ToString()));
+        }
+        catch (Exception ex)
+        {
+            await arg.SendMsg(I18NManager.Translate("Game.Command.Account.DeleteFailed", ex.Message));
+        }
+    }
+
     [CommandMethod("list")]
     public async ValueTask List(CommandArg arg)
     {

GameServer/Command/Commands/CommandGiveAll.cs

@@ -1,4 +1,5 @@
 using MikuSB.Data;
+using MikuSB.Database;
 using MikuSB.Database.Inventory;
 using MikuSB.Enums.Item;
 using MikuSB.Enums.Player;
@@ -42,6 +43,7 @@ public class CommandGiveAll : ICommands
             weapons.Add(weapon);
         }
         if (weapons.Count > 0) await player.SendPacket(new PacketNtfCallScript(weapons));
+        DatabaseHelper.SaveDatabaseType(player.InventoryManager.InventoryData);
         await arg.SendMsg(I18NManager.Translate("Game.Command.GiveAll.GiveAllItems",
             I18NManager.Translate("Word.Weapon"), weapons.Count.ToString()));
     }
@@ -77,6 +79,7 @@ public class CommandGiveAll : ICommands
             supportCards.Add(supportCard);
         }
         if (supportCards.Count > 0) await player.SendPacket(new PacketNtfCallScript(supportCards));
+        DatabaseHelper.SaveDatabaseType(player.InventoryManager.InventoryData);
         await arg.SendMsg(I18NManager.Translate("Game.Command.GiveAll.GiveAllItems",
             I18NManager.Translate("Word.SupportCard"), supportCards.Count.ToString()));
     }
@@ -111,6 +114,7 @@ public class CommandGiveAll : ICommands
             weaponSkins.Add(weaponSkin);
         }
         if (weaponSkins.Count > 0) await player.SendPacket(new PacketNtfCallScript(weaponSkins));
+        DatabaseHelper.SaveDatabaseType(player.InventoryManager.InventoryData);
         await arg.SendMsg(I18NManager.Translate("Game.Command.GiveAll.GiveAllItems",
             I18NManager.Translate("Word.WeaponSkin"), weaponSkins.Count.ToString()));
     }
@@ -147,6 +151,7 @@ public class CommandGiveAll : ICommands
             profileItems.Add(profile);
         }
         if (profileItems.Count > 0) await player.SendPacket(new PacketNtfCallScript(profileItems));
+        DatabaseHelper.SaveDatabaseType(player.InventoryManager.InventoryData);
         await arg.SendMsg(I18NManager.Translate("Game.Command.GiveAll.GiveAllItems",
             I18NManager.Translate("Word.Profile"), profileItems.Count.ToString()));
     }
@@ -183,6 +188,7 @@ public class CommandGiveAll : ICommands
             skinPartItems.Add(skinPart);
         }
         if (skinPartItems.Count > 0) await player.SendPacket(new PacketNtfCallScript(skinPartItems));
+        DatabaseHelper.SaveDatabaseType(player.InventoryManager.InventoryData);
         await arg.SendMsg(I18NManager.Translate("Game.Command.GiveAll.GiveAllItems",
             I18NManager.Translate("Word.SkinPart"), skinPartItems.Count.ToString()));
     }
@@ -219,6 +225,7 @@ public class CommandGiveAll : ICommands
             callItems.Add(callItem);
         }
         if (callItems.Count > 0) await player.SendPacket(new PacketNtfCallScript(callItems));
+        DatabaseHelper.SaveDatabaseType(player.InventoryManager.InventoryData);
         await arg.SendMsg(I18NManager.Translate("Game.Command.GiveAll.GiveAllItems",
             I18NManager.Translate("Word.CallItem"), callItems.Count.ToString()));
     }
@@ -255,6 +262,7 @@ public class CommandGiveAll : ICommands
             weaponPartItems.Add(weaponPart);
         }
         if (weaponPartItems.Count > 0) await player.SendPacket(new PacketNtfCallScript(weaponPartItems));
+        DatabaseHelper.SaveDatabaseType(player.InventoryManager.InventoryData);
         await arg.SendMsg(I18NManager.Translate("Game.Command.GiveAll.GiveAllItems",
             I18NManager.Translate("Word.WeaponPart"), weaponPartItems.Count.ToString()));
     }
@@ -291,6 +299,7 @@ public class CommandGiveAll : ICommands
             skinItems.Add(skin);
         }
         if (skinItems.Count > 0) await player.SendPacket(new PacketNtfCallScript(skinItems));
+        DatabaseHelper.SaveDatabaseType(player.InventoryManager.InventoryData);
         await arg.SendMsg(I18NManager.Translate("Game.Command.GiveAll.GiveAllItems",
             I18NManager.Translate("Word.Skin"), skinItems.Count.ToString()));
     }
@@ -327,6 +336,7 @@ public class CommandGiveAll : ICommands
             furnitureItems.Add(furniture);
         }
         if (furnitureItems.Count > 0) await player.SendPacket(new PacketNtfCallScript(furnitureItems));
+        DatabaseHelper.SaveDatabaseType(player.InventoryManager.InventoryData);
         await arg.SendMsg(I18NManager.Translate("Game.Command.GiveAll.GiveAllItems",
             I18NManager.Translate("Word.Furniture"), furnitureItems.Count.ToString()));
     }

GameServer/Game/Inventory/InventoryManager.cs

@@ -4,6 +4,7 @@ using MikuSB.Database;
 using MikuSB.Database.Inventory;
 using MikuSB.Enums.Item;
 using MikuSB.GameServer.Game.Player;
+using MikuSB.GameServer.Game.Support;
 using MikuSB.GameServer.Server.Packet.Send.Misc;
 
 namespace MikuSB.GameServer.Game.Inventory;
@@ -135,7 +136,17 @@ public class InventoryManager(PlayerInstance player) : BasePlayerManager(player)
             ItemType = genre,
             ItemCount = 1,
             Level = cardLevel,
+            AffixId = 0,
         };
+
+        var affixCount = cardLevel >= spCard.MaxLevel ? spCard.TotalAffixCount : spCard.InitialAffixCount;
+        for (int i = 0; i < affixCount && i < spCard.AffixPool.Count; i++)
+        {
+            var (affixId, tier) = SupportAffixService.GenerateRandomAffix(spCard.AffixPool[i]);
+            if (affixId == 0) continue;
+            SupportAffixStateService.SetAffix(info, i + 1, affixId, tier);
+        }
+
         InventoryData.SupportCards[info.UniqueId] = info;
 
         if (sendPacket) await Player.SendPacket(new PacketNtfCallScript([info]));

GameServer/Game/Player/PlayerInstance.cs

@@ -214,6 +214,10 @@ public class PlayerInstance(PlayerGameData data)
         };
 
         foreach (var chara in CharacterManager.CharacterData.Characters) proto.Items.Add(chara.ToProto());
+        foreach (var item in InventoryManager.InventoryData.Items.Values) proto.Items.Add(item.ToProto());
+        foreach (var skin in InventoryManager.InventoryData.Skins.Values) proto.Items.Add(skin.ToProto());
+        foreach (var weapon in InventoryManager.InventoryData.Weapons.Values) proto.Items.Add(weapon.ToProto());
+        foreach (var card in InventoryManager.InventoryData.SupportCards.Values) proto.Items.Add(card.ToProto());
         foreach (var x in Data.Attrs)
         {
             uint gid = x.Gid;
@@ -226,9 +230,7 @@ public class PlayerInstance(PlayerGameData data)
                 continue;
             }
 
-            //ToDo
-            //Temporary fix for login issues(need to handle LoginRsp properly with zlib.)
-            //proto.Attrs[ToPackedAttrKey(gid, sid)] = val;   
+            proto.Attrs[ToPackedAttrKey(gid, sid)] = val;   
             proto.Attrs[ToShiftedAttrKey(gid, sid)] = val;
         }
 
@@ -325,20 +327,49 @@ public class PlayerInstance(PlayerGameData data)
 
     private static IEnumerable<(uint Gid, uint Sid, uint Value)> BuildGirlFurnitureAttrs()
     {
-        // Unlock some furniture slots for every girl
-        // Each furniture attr int stores 10 slots using 3 bits per slot
-        // Value below means slot 0..9 = 1
         const uint furnitureUnlockedValue = 153391689;
+        var groupFurnitureByArea = new Dictionary<uint, uint>();
+        foreach (var pos in GameData.HouseFurniturePosData.Values)
+        {
+            var areaId = pos.AreaId;
+            var groupId = pos.GroupId;
+            uint selectedIndex = 1;
+            var shift = (groupId - 1) * 3;
+            if (!groupFurnitureByArea.TryGetValue(areaId, out var packed)) packed = 0;
+            packed |= (selectedIndex << (int)shift);
+            groupFurnitureByArea[areaId] = packed;
+        }
 
         for (uint girlId = 0; girlId <= 50; girlId++)
         {
-            // FurnitureStart..FurnitureEnd = 10..19
+            var baseSid = girlId * 50;
             for (uint offset = 10; offset <= 19; offset++)
-            {
-                uint sid = (girlId * 50) + offset;
-                yield return (101, sid, furnitureUnlockedValue);
-            }
+                yield return (101, baseSid + offset, furnitureUnlockedValue);
+
+            if (groupFurnitureByArea.TryGetValue(girlId, out var groupValue))
+                yield return (101, baseSid + 20, groupValue);
         }
+
+        // Massage room furniture
+        // 10010..10019
+        for (uint sid = 10010; sid <= 10019; sid++)
+            yield return (101, sid, furnitureUnlockedValue);
+
+        // Massage room group state
+        yield return (101, 10020, 1);
+
+        // Hot spring furniture
+        // 15001..15010
+        for (uint sid = 15001; sid <= 15010; sid++)
+            yield return (101, sid, furnitureUnlockedValue);
+
+        // Beach furniture
+        // 17101..17110
+        for (uint sid = 17101; sid <= 17110; sid++)
+            yield return (101, sid, furnitureUnlockedValue);
+
+        for (uint sid = 30000; sid < 31000; sid++)
+            yield return (101, sid, furnitureUnlockedValue);
     }
 
     private static IEnumerable<(uint Gid, uint Sid, uint Value)> BuildLobbyBootstrapAttrs()

GameServer/Game/Support/SupportAffixService.cs

@@ -0,0 +1,50 @@
+using MikuSB.Data;
+
+namespace MikuSB.GameServer.Game.Support;
+
+public static class SupportAffixService
+{
+    public static (uint AffixId, uint Tier) GenerateRandomAffix(int poolId, IEnumerable<uint>? excludedAffixIds = null)
+    {
+        if (!GameData.SupportAffixPoolData.TryGetValue(poolId, out var pool))
+            return (0, 0);
+
+        var groups = pool.Groups.ToList();
+        if (groups.Count == 0)
+            return (0, 0);
+
+        var totalWeight = groups.Sum(x => x.Weight);
+        var roll = Random.Shared.Next(totalWeight);
+        var cumulative = 0;
+        var selectedAffixs = groups[0].Affixs;
+
+        foreach (var (affixIds, weight) in groups)
+        {
+            cumulative += weight;
+            if (roll < cumulative)
+            {
+                selectedAffixs = affixIds;
+                break;
+            }
+        }
+
+        if (selectedAffixs.Count == 0)
+            return (0, 0);
+
+        var excluded = excludedAffixIds?.ToHashSet() ?? [];
+        var candidates = selectedAffixs.Where(x => !excluded.Contains((uint)x)).ToList();
+        if (candidates.Count == 0)
+            candidates = selectedAffixs.ToList();
+
+        var affixId = candidates[Random.Shared.Next(candidates.Count)];
+        var tierCount = GameData.SupportAffixData.GetValueOrDefault(affixId)?.TierCount ?? 5;
+        var tier = (uint)(Random.Shared.Next(tierCount) + 1);
+        return ((uint)affixId, tier);
+    }
+
+    public static uint GenerateTier(uint affixId)
+    {
+        var tierCount = GameData.SupportAffixData.GetValueOrDefault((int)affixId)?.TierCount ?? 5;
+        return (uint)(Random.Shared.Next(tierCount) + 1);
+    }
+}

GameServer/Game/Support/SupportAffixStateService.cs

@@ -0,0 +1,70 @@
+using MikuSB.Database.Inventory;
+
+namespace MikuSB.GameServer.Game.Support;
+
+public static class SupportAffixStateService
+{
+    public const int PairSize = 2;
+    public const int MaxLogicalSlots = 5;
+    public const int ActiveThirdAffixSlot = 3;
+    public const int PendingMaxAffixSlot = 4;
+    public const int PendingInitialAffixSlot = 5;
+
+    public static void EnsureCapacity(GameSupportCardInfo card, int logicalSlot = MaxLogicalSlots)
+    {
+        var minCount = Math.Clamp(logicalSlot, 1, MaxLogicalSlots) * PairSize;
+        while (card.Affixs.Count < minCount)
+            card.Affixs.Add(0);
+    }
+
+    public static (uint AffixId, uint Tier) GetAffix(GameSupportCardInfo card, int logicalSlot)
+    {
+        if (logicalSlot < 1 || logicalSlot > MaxLogicalSlots)
+            return (0, 0);
+
+        var index = (logicalSlot - 1) * PairSize;
+        if (card.Affixs.Count <= index + 1)
+            return (0, 0);
+
+        return (card.Affixs[index], card.Affixs[index + 1]);
+    }
+
+    public static bool HasAffix(GameSupportCardInfo card, int logicalSlot)
+    {
+        var (affixId, tier) = GetAffix(card, logicalSlot);
+        return affixId > 0 && tier > 0;
+    }
+
+    public static void SetAffix(GameSupportCardInfo card, int logicalSlot, uint affixId, uint tier)
+    {
+        if (logicalSlot < 1 || logicalSlot > MaxLogicalSlots)
+            return;
+
+        EnsureCapacity(card, logicalSlot);
+        var index = (logicalSlot - 1) * PairSize;
+        card.Affixs[index] = affixId;
+        card.Affixs[index + 1] = tier;
+    }
+
+    public static void ClearAffix(GameSupportCardInfo card, int logicalSlot)
+    {
+        SetAffix(card, logicalSlot, 0, 0);
+    }
+
+    public static void CopyAffix(GameSupportCardInfo card, int fromSlot, int toSlot)
+    {
+        var (affixId, tier) = GetAffix(card, fromSlot);
+        SetAffix(card, toSlot, affixId, tier);
+    }
+
+    public static uint GetVisibleInitialAffixIndex(GameSupportCardInfo card)
+    {
+        return HasAffix(card, PendingInitialAffixSlot) ? card.AffixId : 0;
+    }
+
+    public static void NormalizePendingState(GameSupportCardInfo card)
+    {
+        if (!HasAffix(card, PendingInitialAffixSlot))
+            card.AffixId = 0;
+    }
+}

GameServer/Server/CallGS/Handlers/Girl/GirlCard_UpdateLevel.cs

@@ -0,0 +1,296 @@
+using MikuSB.Data;
+using MikuSB.Database;
+using MikuSB.Database.Inventory;
+using MikuSB.Database.Player;
+using MikuSB.Enums.Item;
+using MikuSB.Proto;
+using System.Text.Json;
+using System.Text.Json.Serialization;
+
+namespace MikuSB.GameServer.Server.CallGS.Handlers.Girl;
+
+[CallGSApi("GirlCard_UpdateLevel")]
+public class GirlCard_UpdateLevel : ICallGSHandler
+{
+    private const uint CashGroupId = 1;
+    private const uint SilverMoneyType = 3;
+    private const uint SilverSid = SilverMoneyType * 2 + 1;
+    private const uint RoleMaxLevel = 80;
+
+    public async Task Handle(Connection connection, string param, ushort seqNo)
+    {
+        var player = connection.Player!;
+        var req = JsonSerializer.Deserialize<GirlCardUpdateLevelParam>(param);
+        if (req == null || req.Id == 0 || req.Materials == null || req.Materials.Count == 0)
+        {
+            await CallGSRouter.SendScript(connection, "GirlCard_UpdateLevel", "{\"sErr\":\"error.BadParam\"}");
+            return;
+        }
+
+        var card = player.CharacterManager.GetCharacterByGUID((uint)req.Id);
+        if (card == null)
+        {
+            await CallGSRouter.SendScript(connection, "GirlCard_UpdateLevel", "{\"sErr\":\"error.BadParam\"}");
+            return;
+        }
+
+        var cardTemplate = GameData.CardData.Values.FirstOrDefault(x =>
+            GameResourceTemplateId.FromGdpl(x.Genre, x.Detail, x.Particular, x.Level) == card.TemplateId);
+        if (cardTemplate == null)
+        {
+            await CallGSRouter.SendScript(connection, "GirlCard_UpdateLevel", "{\"sErr\":\"error.BadParam\"}");
+            return;
+        }
+
+        var levelCap = GetCardLevelCap(player.Data.Level, cardTemplate.LevelLimitID);
+        if (levelCap == 0)
+        {
+            levelCap = card.Level;
+        }
+
+        if (card.Level >= RoleMaxLevel)
+        {
+            await CallGSRouter.SendScript(connection, "GirlCard_UpdateLevel", "{\"sErr\":\"tip.card_max_level\"}");
+            return;
+        }
+
+        var requestedMaterials = new Dictionary<uint, uint>();
+        foreach (var row in req.Materials)
+        {
+            if (row == null || row.Id == 0 || row.Num == 0)
+                continue;
+
+            requestedMaterials[(uint)row.Id] = requestedMaterials.GetValueOrDefault((uint)row.Id) + row.Num;
+        }
+
+        if (requestedMaterials.Count == 0)
+        {
+            await CallGSRouter.SendScript(connection, "GirlCard_UpdateLevel", "{\"sErr\":\"tip.material_not_enough\"}");
+            return;
+        }
+
+        ulong totalExp = 0;
+        ulong totalSilverCost = 0;
+        foreach (var (itemId, count) in requestedMaterials)
+        {
+            var item = player.InventoryManager.GetNormalItem(itemId);
+            if (item == null || item.ItemCount < count)
+            {
+                await CallGSRouter.SendScript(connection, "GirlCard_UpdateLevel", "{\"sErr\":\"tip.material_not_enough\"}");
+                return;
+            }
+
+            if (!GameData.SuppliesData.TryGetValue((uint)item.TemplateId, out var supplies) || supplies.ProvideExp == 0)
+            {
+                await CallGSRouter.SendScript(connection, "GirlCard_UpdateLevel", "{\"sErr\":\"error.BadParam\"}");
+                return;
+            }
+
+            totalExp += (ulong)supplies.ProvideExp * count;
+            totalSilverCost += (ulong)supplies.ConsumeGold * count;
+        }
+
+        var silverAttr = GetOrCreateAttr(player.Data, CashGroupId, SilverSid);
+        if ((ulong)silverAttr.Val < totalSilverCost)
+        {
+            await CallGSRouter.SendScript(connection, "GirlCard_UpdateLevel", "{\"sErr\":\"tip.material_not_enough\"}");
+            return;
+        }
+
+        var syncItems = new List<Item>();
+        foreach (var (itemId, count) in requestedMaterials)
+        {
+            var item = player.InventoryManager.GetNormalItem(itemId)!;
+            item.ItemCount -= count;
+
+            if (item.ItemCount == 0)
+            {
+                player.InventoryManager.InventoryData.Items.Remove(item.UniqueId);
+                syncItems.Add(BuildRemovedProto(item));
+            }
+            else
+            {
+                syncItems.Add(item.ToProto());
+            }
+        }
+
+        silverAttr.Val -= checked((uint)totalSilverCost);
+
+        var (newLevel, newExp) = ApplyCardExp(card.Level, card.Exp, totalExp, levelCap);
+        card.Level = newLevel;
+        card.Exp = checked((int)newExp);
+        syncItems.Add(card.ToProto());
+
+        DatabaseHelper.SaveDatabaseType(player.InventoryManager.InventoryData);
+        DatabaseHelper.SaveDatabaseType(player.CharacterManager.CharacterData);
+        DatabaseHelper.SaveDatabaseType(player.Data);
+
+        var sync = new NtfSyncPlayer();
+        sync.Items.AddRange(syncItems);
+        sync.Custom[player.ToPackedAttrKey(CashGroupId, SilverSid)] = silverAttr.Val;
+        sync.Custom[player.ToShiftedAttrKey(CashGroupId, SilverSid)] = silverAttr.Val;
+
+        await CallGSRouter.SendScript(connection, "GirlCard_UpdateLevel", "null", sync);
+    }
+
+    private static PlayerAttr GetOrCreateAttr(PlayerGameData data, uint gid, uint sid)
+    {
+        var attr = data.Attrs.FirstOrDefault(x => x.Gid == gid && x.Sid == sid);
+        if (attr != null)
+            return attr;
+
+        attr = new PlayerAttr
+        {
+            Gid = gid,
+            Sid = sid,
+            Val = 0
+        };
+        data.Attrs.Add(attr);
+        return attr;
+    }
+
+    private static Item BuildRemovedProto(BaseGameItemInfo item)
+    {
+        var proto = item.ToProto();
+        proto.Count = 0;
+        return proto;
+    }
+
+    private static uint GetCardLevelCap(uint playerLevel, int levelLimitId)
+    {
+        var limits = LoadCardLevelLimit(levelLimitId);
+        if (limits.Count == 0)
+            return 0;
+
+        uint nearestAccountLevel = 0;
+        uint nearestCardLevel = 0;
+
+        foreach (var (accountLevel, cardLevel) in limits)
+        {
+            if (accountLevel < playerLevel)
+            {
+                nearestAccountLevel = accountLevel;
+                nearestCardLevel = cardLevel;
+                continue;
+            }
+
+            if (accountLevel == playerLevel)
+                return Math.Min(cardLevel, RoleMaxLevel);
+
+            var distance = accountLevel - nearestAccountLevel;
+            if (distance == 0)
+                return Math.Min(cardLevel, RoleMaxLevel);
+
+            var percent = (playerLevel - nearestAccountLevel) / (double)distance;
+            var interpolated = (uint)Math.Floor(nearestCardLevel + ((cardLevel - nearestCardLevel) * percent));
+            return Math.Min(interpolated, RoleMaxLevel);
+        }
+
+        return Math.Min(nearestCardLevel, RoleMaxLevel);
+    }
+
+    private static List<(uint AccountLevel, uint CardLevel)> LoadCardLevelLimit(int levelLimitId)
+    {
+        var path = Path.Combine(
+            AppContext.BaseDirectory,
+            "Resources",
+            "item",
+            "level_limit.json");
+
+        if (!File.Exists(path))
+            return [];
+
+        using var doc = JsonDocument.Parse(File.ReadAllText(path));
+        var result = new List<(uint AccountLevel, uint CardLevel)>();
+
+        foreach (var row in doc.RootElement.EnumerateArray())
+        {
+            if (!row.TryGetProperty("ID", out var idProp) || idProp.GetInt32() != levelLimitId)
+                continue;
+
+            if (!row.TryGetProperty("Type", out var typeProp) || typeProp.GetInt32() != 1)
+                continue;
+
+            if (!row.TryGetProperty("Limit", out var limitProp) || limitProp.ValueKind != JsonValueKind.Object)
+                continue;
+
+            foreach (var property in limitProp.EnumerateObject())
+            {
+                if (!uint.TryParse(property.Name, out var accountLevel))
+                    continue;
+
+                uint cardLevel;
+                if (property.Value.ValueKind == JsonValueKind.Number)
+                {
+                    cardLevel = property.Value.GetUInt32();
+                }
+                else if (property.Value.ValueKind == JsonValueKind.String &&
+                         uint.TryParse(property.Value.GetString(), out var parsed))
+                {
+                    cardLevel = parsed;
+                }
+                else
+                {
+                    continue;
+                }
+
+                result.Add((accountLevel, cardLevel));
+            }
+
+            break;
+        }
+
+        result.Sort((a, b) => a.AccountLevel.CompareTo(b.AccountLevel));
+        return result;
+    }
+
+    private static (uint Level, ulong Exp) ApplyCardExp(uint level, int currentExp, ulong addedExp, uint levelCap)
+    {
+        var destLevel = level == 0 ? 1u : level;
+        var destExp = (ulong)Math.Max(0, currentExp) + addedExp;
+
+        if (levelCap > 0 && destLevel >= levelCap)
+            return (destLevel, destExp);
+
+        while (destLevel < RoleMaxLevel)
+        {
+            var needExp = GetCardNeedExp(destLevel);
+            if (needExp == 0 || destExp < needExp)
+                break;
+
+            destExp -= needExp;
+            destLevel++;
+
+            if (levelCap > 0 && destLevel >= levelCap)
+                return (levelCap, destExp);
+        }
+
+        return (destLevel, destExp);
+    }
+
+    private static uint GetCardNeedExp(uint currentLevel)
+    {
+        if (GameData.UpgradeExpData.TryGetValue((int)currentLevel, out var row))
+            return row.CardNeedExp;
+
+        return 0;
+    }
+}
+
+internal sealed class GirlCardUpdateLevelParam
+{
+    [JsonPropertyName("Id")]
+    public int Id { get; set; }
+
+    [JsonPropertyName("tbMaterials")]
+    public List<GirlCardLevelMaterial> Materials { get; set; } = [];
+}
+
+internal sealed class GirlCardLevelMaterial
+{
+    [JsonPropertyName("Id")]
+    public int Id { get; set; }
+
+    [JsonPropertyName("Num")]
+    public uint Num { get; set; }
+}

GameServer/Server/CallGS/Handlers/SupporterCard/SupporterCardAffixShared.cs

@@ -0,0 +1,153 @@
+using MikuSB.Data;
+using MikuSB.Data.Excel;
+using MikuSB.Database;
+using MikuSB.Database.Inventory;
+using MikuSB.Database.Player;
+using MikuSB.GameServer.Game.Support;
+using MikuSB.Proto;
+using System.Text.Json.Serialization;
+
+namespace MikuSB.GameServer.Server.CallGS.Handlers.SupporterCard;
+
+internal static class SupporterCardAffixShared
+{
+    public const uint BaseGid = 150;
+    public const uint FixedResetSid = 1;
+
+    public static SupportCardExcel? GetExcel(GameSupportCardInfo card)
+    {
+        return GameData.SupportCardData.FirstOrDefault(x => x.TemplateId == card.TemplateId);
+    }
+
+    public static async Task SendResetResponse(Connection connection, NtfSyncPlayer? sync = null)
+    {
+        await CallGSRouter.SendScript(connection, "SupporterCard_ResetAffix", "null", sync!);
+    }
+
+    public static async Task SendSelectResponse(Connection connection, NtfSyncPlayer? sync = null)
+    {
+        await CallGSRouter.SendScript(connection, "SupporterCard_SelectAffix", "null", sync!);
+    }
+
+    public static List<Item> ConsumeCostItems(Connection connection, IEnumerable<IReadOnlyList<uint>> costs)
+    {
+        var player = connection.Player!;
+        var syncItems = new List<Item>();
+
+        foreach (var cost in costs)
+        {
+            if (cost.Count < 5)
+                continue;
+
+            var templateId = GameResourceTemplateId.FromGdpl(cost);
+            var item = player.InventoryManager.InventoryData.Items.Values.FirstOrDefault(x => x.TemplateId == templateId);
+            if (item == null || item.ItemCount < cost[4])
+                throw new InvalidOperationException("support affix material not enough");
+
+            item.ItemCount -= cost[4];
+            var proto = item.ToProto();
+            if (item.ItemCount == 0)
+            {
+                player.InventoryManager.InventoryData.Items.Remove(item.UniqueId);
+                proto.Count = 0;
+            }
+            syncItems.Add(proto);
+        }
+
+        return syncItems;
+    }
+
+    public static bool HasEnoughItems(Connection connection, IEnumerable<IReadOnlyList<uint>> costs)
+    {
+        var items = connection.Player!.InventoryManager.InventoryData.Items.Values;
+        return costs.All(cost =>
+        {
+            if (cost.Count < 5)
+                return false;
+
+            var templateId = GameResourceTemplateId.FromGdpl(cost);
+            var item = items.FirstOrDefault(x => x.TemplateId == templateId);
+            return item != null && item.ItemCount >= cost[4];
+        });
+    }
+
+    public static PlayerAttr GetOrCreateAttr(PlayerGameData data, uint gid, uint sid)
+    {
+        var attr = data.Attrs.FirstOrDefault(x => x.Gid == gid && x.Sid == sid);
+        if (attr != null)
+            return attr;
+
+        attr = new PlayerAttr { Gid = gid, Sid = sid, Val = 0 };
+        data.Attrs.Add(attr);
+        return attr;
+    }
+
+    public static void SetAttr(Connection connection, NtfSyncPlayer sync, uint gid, uint sid, uint value)
+    {
+        var player = connection.Player!;
+        var attr = GetOrCreateAttr(player.Data, gid, sid);
+        attr.Val = value;
+        sync.Custom[player.ToPackedAttrKey(gid, sid)] = value;
+        sync.Custom[player.ToShiftedAttrKey(gid, sid)] = value;
+    }
+
+    public static IEnumerable<uint> GetActiveAffixIds(GameSupportCardInfo card, params int[] ignoreSlots)
+    {
+        var ignored = ignoreSlots.ToHashSet();
+        for (var slot = 1; slot <= SupportAffixStateService.ActiveThirdAffixSlot; slot++)
+        {
+            if (ignored.Contains(slot))
+                continue;
+
+            var (affixId, _) = SupportAffixStateService.GetAffix(card, slot);
+            if (affixId > 0)
+                yield return affixId;
+        }
+    }
+
+    public static void Save(Connection connection)
+    {
+        var player = connection.Player!;
+        DatabaseHelper.SaveDatabaseType(player.InventoryManager.InventoryData);
+        DatabaseHelper.SaveDatabaseType(player.Data);
+    }
+}
+
+internal sealed class SupporterCardIdParam
+{
+    [JsonPropertyName("Id")]
+    public int SupportCardUid { get; set; }
+}
+
+internal sealed class SupporterCardSelectParam
+{
+    [JsonPropertyName("Id")]
+    public int SupportCardUid { get; set; }
+
+    [JsonPropertyName("SelectNew")]
+    public bool SelectNew { get; set; }
+}
+
+internal sealed class SupporterCardResetInitialParam
+{
+    [JsonPropertyName("Id")]
+    public int SupportCardUid { get; set; }
+
+    [JsonPropertyName("Index")]
+    public int Index { get; set; }
+
+    [JsonPropertyName("FixedId")]
+    public uint FixedId { get; set; }
+}
+
+internal sealed class SupporterCardSelectInitialParam
+{
+    [JsonPropertyName("Id")]
+    public int SupportCardUid { get; set; }
+
+    [JsonPropertyName("Index")]
+    public int Index { get; set; }
+
+    [JsonPropertyName("SelectNew")]
+    public bool SelectNew { get; set; }
+}

GameServer/Server/CallGS/Handlers/SupporterCard/SupporterCard_FixedResetInitialAffix.cs

@@ -0,0 +1,10 @@
+namespace MikuSB.GameServer.Server.CallGS.Handlers.SupporterCard;
+
+[CallGSApi("SupporterCard_FixedResetInitialAffix")]
+public class SupporterCard_FixedResetInitialAffix : ICallGSHandler
+{
+    public async Task Handle(Connection connection, string param, ushort seqNo)
+    {
+        await SupporterCard_ResetInitialAffix.Reset(connection, param, fixedMode: true);
+    }
+}

GameServer/Server/CallGS/Handlers/SupporterCard/SupporterCard_ReceiveFixedItem.cs

@@ -0,0 +1,57 @@
+using MikuSB.Data;
+using MikuSB.Proto;
+using System.Text.Json.Nodes;
+
+namespace MikuSB.GameServer.Server.CallGS.Handlers.SupporterCard;
+
+[CallGSApi("SupporterCard_ReceiveFixedItem")]
+public class SupporterCard_ReceiveFixedItem : ICallGSHandler
+{
+    public async Task Handle(Connection connection, string param, ushort seqNo)
+    {
+        var player = connection.Player!;
+        if (!GameData.SupportFixedData.TryGetValue(1, out var fixedCfg) || fixedCfg.Item.Count < 5 || fixedCfg.Num <= 0)
+        {
+            await CallGSRouter.SendScript(connection, "SupporterCard_ReceiveFixedItem", "{}");
+            return;
+        }
+
+        var attr = SupporterCardAffixShared.GetOrCreateAttr(player.Data, SupporterCardAffixShared.BaseGid, SupporterCardAffixShared.FixedResetSid);
+        var claimCount = attr.Val / (uint)fixedCfg.Num;
+        if (claimCount == 0)
+        {
+            await CallGSRouter.SendScript(connection, "SupporterCard_ReceiveFixedItem", "{}");
+            return;
+        }
+
+        attr.Val %= (uint)fixedCfg.Num;
+
+        var rewardTemplateId = (uint)GameResourceTemplateId.FromGdpl(fixedCfg.Item);
+        var rewardItem = GameData.SuppliesData.GetValueOrDefault(rewardTemplateId);
+        if (rewardItem == null)
+        {
+            await CallGSRouter.SendScript(connection, "SupporterCard_ReceiveFixedItem", "{}");
+            return;
+        }
+
+        var granted = await player.InventoryManager.AddSuppliesItem(rewardItem, claimCount * fixedCfg.Item[4], sendPacket: false);
+
+        var sync = new NtfSyncPlayer();
+        if (granted != null)
+            sync.Items.Add(granted.ToProto());
+        SupporterCardAffixShared.SetAttr(connection, sync, SupporterCardAffixShared.BaseGid, SupporterCardAffixShared.FixedResetSid, attr.Val);
+        SupporterCardAffixShared.Save(connection);
+
+        var arg = new JsonObject
+        {
+            ["tbRewards"] = new JsonArray(
+                (int)fixedCfg.Item[0],
+                (int)fixedCfg.Item[1],
+                (int)fixedCfg.Item[2],
+                (int)fixedCfg.Item[3],
+                (int)(claimCount * fixedCfg.Item[4]))
+        }.ToJsonString();
+
+        await CallGSRouter.SendScript(connection, "SupporterCard_ReceiveFixedItem", arg, sync);
+    }
+}

GameServer/Server/CallGS/Handlers/SupporterCard/SupporterCard_ResetAffix.cs

@@ -0,0 +1,38 @@
+using MikuSB.GameServer.Game.Support;
+using MikuSB.Proto;
+using System.Text.Json;
+
+namespace MikuSB.GameServer.Server.CallGS.Handlers.SupporterCard;
+
+[CallGSApi("SupporterCard_ResetAffix")]
+public class SupporterCard_ResetAffix : ICallGSHandler
+{
+    public async Task Handle(Connection connection, string param, ushort seqNo)
+    {
+        var req = JsonSerializer.Deserialize<SupporterCardIdParam>(param);
+        var card = req == null ? null : connection.Player!.InventoryManager.GetSupportCardItem((uint)req.SupportCardUid);
+        var excel = card == null ? null : SupporterCardAffixShared.GetExcel(card);
+        if (card == null || excel == null || excel.AffixCost.Count < 5 || !SupportAffixStateService.HasAffix(card, SupportAffixStateService.ActiveThirdAffixSlot))
+        {
+            await SupporterCardAffixShared.SendResetResponse(connection);
+            return;
+        }
+
+        var costs = new[] { excel.AffixCost };
+        if (!SupporterCardAffixShared.HasEnoughItems(connection, costs))
+        {
+            await SupporterCardAffixShared.SendResetResponse(connection);
+            return;
+        }
+
+        var sync = new NtfSyncPlayer();
+        sync.Items.AddRange(SupporterCardAffixShared.ConsumeCostItems(connection, costs));
+        var excluded = SupporterCardAffixShared.GetActiveAffixIds(card, SupportAffixStateService.ActiveThirdAffixSlot);
+        var (affixId, tier) = SupportAffixService.GenerateRandomAffix(excel.AffixPool[SupportAffixStateService.ActiveThirdAffixSlot - 1], excluded);
+        SupportAffixStateService.SetAffix(card, SupportAffixStateService.PendingMaxAffixSlot, affixId, tier);
+        sync.Items.Add(card.ToProto());
+
+        SupporterCardAffixShared.Save(connection);
+        await SupporterCardAffixShared.SendResetResponse(connection, sync);
+    }
+}

GameServer/Server/CallGS/Handlers/SupporterCard/SupporterCard_ResetInitialAffix.cs

@@ -0,0 +1,60 @@
+using MikuSB.GameServer.Game.Support;
+using MikuSB.Proto;
+using System.Text.Json;
+
+namespace MikuSB.GameServer.Server.CallGS.Handlers.SupporterCard;
+
+[CallGSApi("SupporterCard_ResetInitialAffix")]
+public class SupporterCard_ResetInitialAffix : ICallGSHandler
+{
+    public async Task Handle(Connection connection, string param, ushort seqNo)
+    {
+        await Reset(connection, param, fixedMode: false);
+    }
+
+    internal static async Task Reset(Connection connection, string param, bool fixedMode)
+    {
+        var req = JsonSerializer.Deserialize<SupporterCardResetInitialParam>(param);
+        var card = req == null ? null : connection.Player!.InventoryManager.GetSupportCardItem((uint)req.SupportCardUid);
+        var excel = card == null ? null : SupporterCardAffixShared.GetExcel(card);
+        if (req == null || card == null || excel == null || req.Index is < 1 or > 2 || excel.AffixPool.Count < req.Index)
+        {
+            await SupporterCardAffixShared.SendResetResponse(connection);
+            return;
+        }
+
+        var costs = fixedMode ? new[] { excel.FixedAffixCost } : excel.InitialAffixCost;
+        if (!costs.Any() || !SupporterCardAffixShared.HasEnoughItems(connection, costs))
+        {
+            await SupporterCardAffixShared.SendResetResponse(connection);
+            return;
+        }
+
+        var sync = new NtfSyncPlayer();
+        sync.Items.AddRange(SupporterCardAffixShared.ConsumeCostItems(connection, costs));
+
+        uint affixId;
+        uint tier;
+        if (fixedMode && req.FixedId > 0)
+        {
+            affixId = req.FixedId;
+            tier = SupportAffixService.GenerateTier(affixId);
+        }
+        else
+        {
+            var excluded = SupporterCardAffixShared.GetActiveAffixIds(card, req.Index);
+            (affixId, tier) = SupportAffixService.GenerateRandomAffix(excel.AffixPool[req.Index - 1], excluded);
+        }
+
+        SupportAffixStateService.SetAffix(card, SupportAffixStateService.PendingInitialAffixSlot, affixId, tier);
+        card.AffixId = (uint)req.Index;
+
+        var attr = SupporterCardAffixShared.GetOrCreateAttr(connection.Player!.Data, SupporterCardAffixShared.BaseGid, SupporterCardAffixShared.FixedResetSid);
+        attr.Val += 1;
+        SupporterCardAffixShared.SetAttr(connection, sync, SupporterCardAffixShared.BaseGid, SupporterCardAffixShared.FixedResetSid, attr.Val);
+
+        sync.Items.Add(card.ToProto());
+        SupporterCardAffixShared.Save(connection);
+        await SupporterCardAffixShared.SendResetResponse(connection, sync);
+    }
+}

GameServer/Server/CallGS/Handlers/SupporterCard/SupporterCard_SelectAffix.cs

@@ -0,0 +1,30 @@
+using MikuSB.GameServer.Game.Support;
+using MikuSB.Proto;
+using System.Text.Json;
+
+namespace MikuSB.GameServer.Server.CallGS.Handlers.SupporterCard;
+
+[CallGSApi("SupporterCard_SelectAffix")]
+public class SupporterCard_SelectAffix : ICallGSHandler
+{
+    public async Task Handle(Connection connection, string param, ushort seqNo)
+    {
+        var req = JsonSerializer.Deserialize<SupporterCardSelectParam>(param);
+        var card = req == null ? null : connection.Player!.InventoryManager.GetSupportCardItem((uint)req.SupportCardUid);
+        if (card == null || !SupportAffixStateService.HasAffix(card, SupportAffixStateService.PendingMaxAffixSlot))
+        {
+            await SupporterCardAffixShared.SendSelectResponse(connection);
+            return;
+        }
+
+        if (req!.SelectNew)
+            SupportAffixStateService.CopyAffix(card, SupportAffixStateService.PendingMaxAffixSlot, SupportAffixStateService.ActiveThirdAffixSlot);
+
+        SupportAffixStateService.ClearAffix(card, SupportAffixStateService.PendingMaxAffixSlot);
+
+        var sync = new NtfSyncPlayer();
+        sync.Items.Add(card.ToProto());
+        SupporterCardAffixShared.Save(connection);
+        await SupporterCardAffixShared.SendSelectResponse(connection, sync);
+    }
+}

GameServer/Server/CallGS/Handlers/SupporterCard/SupporterCard_SelectInitialAffix.cs

@@ -0,0 +1,31 @@
+using MikuSB.GameServer.Game.Support;
+using MikuSB.Proto;
+using System.Text.Json;
+
+namespace MikuSB.GameServer.Server.CallGS.Handlers.SupporterCard;
+
+[CallGSApi("SupporterCard_SelectInitialAffix")]
+public class SupporterCard_SelectInitialAffix : ICallGSHandler
+{
+    public async Task Handle(Connection connection, string param, ushort seqNo)
+    {
+        var req = JsonSerializer.Deserialize<SupporterCardSelectInitialParam>(param);
+        var card = req == null ? null : connection.Player!.InventoryManager.GetSupportCardItem((uint)req.SupportCardUid);
+        if (req == null || card == null || req.Index is < 1 or > 2 || card.AffixId != req.Index || !SupportAffixStateService.HasAffix(card, SupportAffixStateService.PendingInitialAffixSlot))
+        {
+            await SupporterCardAffixShared.SendSelectResponse(connection);
+            return;
+        }
+
+        if (req.SelectNew)
+            SupportAffixStateService.CopyAffix(card, SupportAffixStateService.PendingInitialAffixSlot, req.Index);
+
+        SupportAffixStateService.ClearAffix(card, SupportAffixStateService.PendingInitialAffixSlot);
+        card.AffixId = 0;
+
+        var sync = new NtfSyncPlayer();
+        sync.Items.Add(card.ToProto());
+        SupporterCardAffixShared.Save(connection);
+        await SupporterCardAffixShared.SendSelectResponse(connection, sync);
+    }
+}

GameServer/Server/CallGS/Handlers/SupporterCard/SupporterCard_Upgrade.cs

@@ -1,5 +1,6 @@
 using MikuSB.Data;
 using MikuSB.Database;
+using MikuSB.GameServer.Game.Support;
 using MikuSB.Proto;
 using System.Text.Json;
 using System.Text.Json.Serialization;
@@ -19,7 +20,7 @@ public class SupporterCard_Upgrade : ICallGSHandler
             return;
         }
 
-        var supportCard = player.InventoryManager.InventoryData.Items.GetValueOrDefault((uint)req.SupportCardUid);
+        var supportCard = player.InventoryManager.GetSupportCardItem((uint)req.SupportCardUid);
         if (supportCard == null)
         {
             await CallGSRouter.SendScript(connection, "Logistics_Upgrade", "{}");
@@ -68,10 +69,11 @@ public class SupporterCard_Upgrade : ICallGSHandler
         }
 
         // Apply exp and level up
+        if (supportCard.Level == 0) supportCard.Level = 1;
         supportCard.Exp += gainedExp;
         while (supportCard.Level < maxLevel)
         {
-            var expNeeded = GetExpNeeded(supportCard.Level + 1);
+            var expNeeded = GetExpNeeded(supportCard.Level);
             if (expNeeded == 0 || supportCard.Exp < expNeeded) break;
             supportCard.Exp -= expNeeded;
             supportCard.Level++;
@@ -80,6 +82,21 @@ public class SupporterCard_Upgrade : ICallGSHandler
         {
             supportCard.Exp = 0;
             supportCard.Level = maxLevel;
+
+            // Unlock next affix slot when reaching max level for the first time
+            if (supportCardExcel != null)
+            {
+                var currentSlots = Enumerable.Range(1, SupportAffixStateService.ActiveThirdAffixSlot)
+                    .Count(slot => SupportAffixStateService.HasAffix(supportCard, slot));
+                var totalSlots = supportCardExcel.TotalAffixCount;
+                if (currentSlots < totalSlots && currentSlots < supportCardExcel.AffixPool.Count)
+                {
+                    var poolId = supportCardExcel.AffixPool[currentSlots];
+                    var (affixId, tier) = SupportAffixService.GenerateRandomAffix(poolId);
+                    if (affixId > 0)
+                        SupportAffixStateService.SetAffix(supportCard, currentSlots + 1, affixId, tier);
+                }
+            }
         }
 
         syncItems.Add(supportCard.ToProto());

GameServer/Server/Packet/Recv/Login/HandlerReqLogin.cs

@@ -87,7 +87,6 @@ public class HandlerReqLogin : Handler
         await connection.Player.OnHeartBeat();
         await connection.SendPacket(new PacketNtfUpdateFriend(connection.Player!));
         ApplySavedGirlSkinTypes(connection.Player!);
-        await connection.SendPacket(new PacketNtfCallScript(connection.Player!.InventoryManager.InventoryData));
         await SendGirlSkinTypeOnLogin(connection);
     }
 

GameServer/Server/Packet/Send/Login/PacketRspLogin.cs

@@ -22,7 +22,7 @@ public class PacketRspLogin : BasePacket
         };
 
         var bytes = Google.Protobuf.MessageExtensions.ToByteArray(proto);
-        Logger.Info($"RspLogin proto size: {bytes.Length} bytes (limit: 65535)");
+        Logger.Info($"RspLogin proto size: {bytes.Length} bytes");
 
         SetData(bytes);
     }

GameServer/Server/Packet/Send/Misc/PacketNtfCallScript.cs

@@ -1,6 +1,8 @@
-using MikuSB.Database.Character;
+using MikuSB.Database.Character;
 using MikuSB.Database.Inventory;
+using MikuSB.Enums.Item;
 using MikuSB.GameServer.Game.Player;
+using MikuSB.GameServer.Game.Support;
 using MikuSB.Proto;
 using MikuSB.TcpSharp;
 
@@ -10,14 +12,14 @@ public class PacketNtfCallScript : BasePacket
 {
     public PacketNtfCallScript(List<CharacterInfo> characters) : base(CmdIds.NtfScript)
     {
-        var proto = new NtfCallScript 
-        { 
+        var proto = new NtfCallScript
+        {
             Api = "",
             Arg = "{}",
             ExtraSync = new NtfSyncPlayer
             {
                 Items = { characters.Select(x => x.ToProto()) }
-            } 
+            }
         };
 
         SetData(proto);
@@ -61,7 +63,7 @@ public class PacketNtfCallScript : BasePacket
             Arg = "{}",
             ExtraSync = new NtfSyncPlayer
             {
-                Items = { cards.Select(x => x.ToProto()) }
+                Items = { cards.Select(ToSupportCardProto) }
             }
         };
 
@@ -95,7 +97,7 @@ public class PacketNtfCallScript : BasePacket
         foreach (var item in inventory.Items.Values) extraSync.Items.Add(item.ToProto());
         foreach (var skin in inventory.Skins.Values) extraSync.Items.Add(skin.ToProto());
         foreach (var weapon in inventory.Weapons.Values) extraSync.Items.Add(weapon.ToProto());
-        foreach (var supportCard in inventory.SupportCards.Values) extraSync.Items.Add(supportCard.ToProto());
+        foreach (var supportCard in inventory.SupportCards.Values) extraSync.Items.Add(ToSupportCardProto(supportCard));
         proto.ExtraSync = extraSync;
         SetData(proto);
     }
@@ -128,4 +130,12 @@ public class PacketNtfCallScript : BasePacket
 
         SetData(proto);
     }
+
+    private static Item ToSupportCardProto(GameSupportCardInfo card)
+    {
+        SupportAffixStateService.NormalizePendingState(card);
+        var proto = card.ToProto();
+        proto.Slots[(uint)ItemSupportCardSlotTypeEnum.SLOT_AFFIXINDEX] = SupportAffixStateService.GetVisibleInitialAffixIndex(card);
+        return proto;
+    }
 }

MikuSB.Loader/GameLaunchService.cs

@@ -293,11 +293,14 @@ public sealed class LaunchOptions
     public static LaunchOptions FromConfig(IEnumerable<string>? extraGameArguments = null)
     {
         var config = ConfigManager.Config;
+        var serverBaseDirectory = AppContext.BaseDirectory;
         var gamePath = ResolvePath(config.Loader.GamePath, AppContext.BaseDirectory);
-        var patchPaths = ResolvePatchPaths(config.Loader.PatchPaths, AppContext.BaseDirectory);
+        var patchPaths = ResolvePatchPaths(config.Loader.PatchPaths, serverBaseDirectory);
         var gameArgs = new List<string>(config.Loader.Arguments ?? []);
         if (extraGameArguments is not null)
             gameArgs.AddRange(extraGameArguments.Where(x => !string.IsNullOrWhiteSpace(x)));
+        gameArgs = EnsureUserDirArgument(gameArgs, serverBaseDirectory);
+        PersistResolvedArgumentsIfChanged(config, gameArgs);
 
         var env = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
         if (config.Loader.SetAllProxy && config.Proxy.Enabled)
@@ -330,6 +333,31 @@ public sealed class LaunchOptions
         };
     }
 
+    private static List<string> EnsureUserDirArgument(List<string> gameArgs, string baseDirectory)
+    {
+        var userDataDirectory = Path.GetFullPath(Path.Combine(baseDirectory, "Client_User_Data"));
+        Directory.CreateDirectory(userDataDirectory);
+
+        var userDirArgument = $"-userdir={userDataDirectory}";
+        var existingIndex = gameArgs.FindIndex(x => x.StartsWith("-userdir=", StringComparison.OrdinalIgnoreCase));
+        if (existingIndex >= 0)
+            gameArgs[existingIndex] = userDirArgument;
+        else
+            gameArgs.Add(userDirArgument);
+
+        return gameArgs;
+    }
+
+    private static void PersistResolvedArgumentsIfChanged(Configuration.ConfigContainer config, List<string> gameArgs)
+    {
+        var currentArgs = config.Loader.Arguments ?? [];
+        if (currentArgs.SequenceEqual(gameArgs, StringComparer.Ordinal))
+            return;
+
+        config.Loader.Arguments = gameArgs.ToArray();
+        ConfigManager.SaveConfig();
+    }
+
     private static string? ResolvePath(string? value, string baseDirectory)
     {
         if (string.IsNullOrWhiteSpace(value))

MikuSB/Program/LoaderManager.cs

@@ -22,16 +22,35 @@ public class LoaderManager : MikuSB
     public static void InitConfig()
     {
         // Initialize log
-        var counter = 0;
-        FileInfo file;
-        while (true)
+        var logDir = ConfigManager.Config.Path.LogPath;
+        var logFile = new FileInfo(Path.Combine(logDir, "Server.log"));
+        logFile.Directory?.Create();
+
+        if (logFile.Exists)
         {
-            file = new FileInfo(ConfigManager.Config.Path.LogPath + $"/{DateTime.Now:yyyy-MM-dd}-{++counter}.log");
-            if (file is not { Exists: false, Directory: not null }) continue;
-            file.Directory.Create();
-            break;
+            // Read start time from first log line, fall back to file creation time
+            DateTime logStartTime;
+            try
+            {
+                var firstLine = File.ReadLines(logFile.FullName).FirstOrDefault() ?? "";
+                // Format: [HH:mm:ss] ...
+                var timeStr = firstLine.Length >= 10 ? firstLine[1..9] : "";
+                var dateStr = logFile.CreationTime.ToString("yyyy-MM-dd");
+                logStartTime = DateTime.TryParse($"{dateStr} {timeStr}", out var parsed)
+                    ? parsed
+                    : logFile.CreationTime;
+            }
+            catch
+            {
+                logStartTime = logFile.CreationTime;
+            }
+
+            var backupName = $"Server-backup-{logStartTime:yyyy.MM.dd-HH.mm.ss}.log";
+            var backupFile = new FileInfo(Path.Combine(logDir, backupName));
+            logFile.MoveTo(backupFile.FullName, overwrite: true);
         }
-        Logger.SetLogFile(file);
+
+        Logger.SetLogFile(new FileInfo(Path.Combine(logDir, "Server.log")));
 
         // Init all directories
         try

MikuSB/Program/MikuSB.cs

@@ -27,6 +27,7 @@ public class MikuSB
         var time = DateTime.Now;
         IConsole.InitConsole();
         LoaderManager.InitConfig();
+        ShowAntiScamWarning();
         if (await UpdateService.TryStartSelfUpdateAsync())
             return;
 
@@ -65,6 +66,16 @@ public class MikuSB
         await ProcessExit(Volatile.Read(ref _exitCode));
     }
 
+    private static void ShowAntiScamWarning()
+    {
+        Logger.Warn("============================================================");
+        Logger.Warn("MikuSB is completely free and open source.");
+        Logger.Warn("If you paid anyone for this server, you were scammed.");
+        Logger.Warn("Request a refund immediately and report the seller to us.");
+        Logger.Warn("Discord: https://discord.gg/aMwCu9JyUR");
+        Logger.Warn("============================================================");
+    }
+
     #region Exit
 
     private static void RegisterExitEvent()
@@ -109,4 +120,4 @@ public class MikuSB
     }
 
     # endregion
-}
+}

README.md

@@ -7,6 +7,12 @@
 
 日本語のドキュメントは [README_jp.md](README_jp.md) にあります。
 
+## Scam Warning
+
+MikuSB is completely free and open source.
+If anyone sold you this server or charged money to provide it, that was a scam.
+Request a refund immediately and report the seller to us on Discord with any relevant proof or purchase details.
+
 ## Overview
 
 - `SdkServer`
@@ -42,7 +48,8 @@ dotnet build
 ```
 2. Set `GamePath` in `Config.json` to the path of your game executable.
 3. Start the server and run the `game` command.
-4. Enjoy.
+4. Create an account in the server console.  
+5. Enjoy.
 
 ## Feature List
 

README_jp.md

@@ -7,6 +7,12 @@
 
 English documentation is available in [README.md](README.md).
 
+## 詐欺に関する警告
+
+MikuSB は完全無料のオープンソースです。  
+このサーバーを誰かから有料で販売された場合、それは詐欺です。  
+すぐに返金を申請し、購入記録や証拠とあわせて Discord で私たちに通報してください。  
+
 ## 概要
 
 - `SdkServer`
@@ -42,7 +48,8 @@ dotnet build
 ```
 2. Config.json の`GamePath`にあなたのゲームの実行ファイルのパスを書き込みます  
 3. サーバーを起動し`game`コマンドを入力します  
-4. 楽しむ
+4. サーバーコンソールでアカウントを作成する  
+5. 楽しむ
 
 ## 機能一覧
 

SdkServer/Handlers/RouteController.cs

@@ -270,12 +270,17 @@ public class RouteController : ControllerBase
         var finalEmail = email ?? form_email ?? await GetJsonBodyValue("email");
         if (!string.IsNullOrWhiteSpace(finalEmail))
         {
-            var accountByEmail = AccountData.GetAccountByEmail(finalEmail);
-            if (accountByEmail == null)
-                return BuildLoginFailedResponse("Account not found.");
+            var normalizedEmail = finalEmail.Trim();
+            var accountData = AccountData.GetAccountByEmail(normalizedEmail);
+            if (accountData == null)
+            {
+                if (!ConfigManager.Config.ServerOption.AutoCreateUser) return BuildLoginFailedResponse("Account not found.");
+                AccountData.CreateAccount(normalizedEmail, 0, "123456");
+                accountData = AccountData.GetAccountByEmail(normalizedEmail)!;
+            }
 
-            var finalUidValue = accountByEmail.Uid.ToString();
-            var finalTokenValue = accountByEmail.GenerateComboToken();
+            var finalUidValue = accountData.Uid.ToString();
+            var finalTokenValue = accountData.GenerateComboToken();
 
             object emailLoginRsp = new
             {
@@ -286,14 +291,14 @@ public class RouteController : ControllerBase
                     isFirstLogin = false,
                     isNeedKoreaSciAuth = false,
                     ksOpenId = $"ks_{finalUidValue}",
-                    nickname = accountByEmail.Username,
+                    nickname = accountData.Username,
                     passportId = finalUidValue,
                     playerFillAgeUrl = "",
                     status = 0,
                     thirdPartyUid = "",
                     token = finalTokenValue,
                     type = "guest",
-                    uid = accountByEmail.Uid
+                    uid = accountData.Uid
                 },
                 msg = "操作成功"
             };

TcpSharp/BasePacket.cs

@@ -12,6 +12,7 @@ public class BasePacket
     public long Timestamp { get; set; }
     public IMessage? Message { get; set; }
     public PacketFraming Framing { get; set; }
+    public int UncompressedBodySize { get; set; }
 
     public BasePacket(ushort cmdId)
     {

TcpSharp/PacketCodec.cs

@@ -2,6 +2,7 @@
 using MikuSB.Enums.Packet;
 using MikuSB.Util;
 using System.Buffers.Binary;
+using System.IO.Compression;
 using System.Net.Sockets;
 
 namespace MikuSB.TcpSharp
@@ -63,11 +64,11 @@ namespace MikuSB.TcpSharp
             }
         }
 
-        public byte[] Encode(ushort packetId, byte[] payload, PacketFraming framing = PacketFraming.FourByteLittleEndianLength)
+        public byte[] Encode(ushort packetId, byte[] payload, PacketFraming framing = PacketFraming.FourByteLittleEndianLength, int uncompressedSize = 0)
         {
             return framing switch
             {
-                PacketFraming.TwoByteBigEndianLength => EncodeTwoByteFrame(packetId, payload),
+                PacketFraming.TwoByteBigEndianLength => EncodeTwoByteFrame(packetId, payload, uncompressedSize),
                 PacketFraming.FourByteLittleEndianLength => EncodeFourByteFrame(packetId, payload),
                 _ => EncodeFourByteFrame(packetId, payload)
             };
@@ -220,8 +221,20 @@ namespace MikuSB.TcpSharp
             return payload;
         }
 
-        private byte[] EncodeTwoByteFrame(ushort packetId, byte[] payload)
+        private const int CompressionThreshold = 60000;
+
+        private static byte[] ZlibCompress(byte[] data)
         {
+            using var ms = new MemoryStream();
+            using (var zlib = new ZLibStream(ms, CompressionLevel.Optimal, leaveOpen: true))
+                zlib.Write(data, 0, data.Length);
+            return ms.ToArray();
+        }
+
+        private byte[] EncodeTwoByteFrame(ushort packetId, byte[] payload, int uncompressedSize = 0)
+        {
+            if (payload.Length > CompressionThreshold)
+                payload = ZlibCompress(payload);
             var wrappedPayload = WrapPayload(payload);
             var buffer = new byte[HeaderSize4Byte + wrappedPayload.Length];
 
@@ -246,7 +259,9 @@ namespace MikuSB.TcpSharp
             const int wrapperHeaderSize = 35;
             var wrapped = new byte[wrapperHeaderSize + payload.Length];
             BinaryPrimitives.WriteUInt16LittleEndian(wrapped.AsSpan(6, 2), (ushort)payload.Length);
-            wrapped[11] = 1;
+            if (payload.Length >= 2 && payload[0] == 0x78 &&
+                (payload[1] == 0x01 || payload[1] == 0x5E || payload[1] == 0x9C || payload[1] == 0xDA))
+                wrapped[10] = 2;
             payload.CopyTo(wrapped.AsSpan(wrapperHeaderSize));
 
             return wrapped;

version.txt

@@ -1 +1 @@
-v=2.6
+v=3.3