Merge remote-tracking branch 'upstream/development' into dev-mail

.github/workflows/build.yml

@@ -0,0 +1,24 @@
+name: "Build"
+on:
+  push:
+    branches:
+      - "stable"
+jobs:
+  Build-Server-Jar:
+    runs-on: windows-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Setup Java
+        uses: actions/setup-java@v3
+        with:
+          distribution: temurin
+          java-version: '8'
+      - name: Run Gradle
+        run: .\gradlew.bat && .\gradlew jar
+      - name: Upload build
+        uses: actions/upload-artifact@v3
+        with:
+          name: Grasscutter
+          path: grasscutter.jar
+      

.gitignore

@@ -47,12 +47,13 @@ tmp/
 
 # Grasscutter
 resources/*
+logs/*
 data/AbilityEmbryos.json
 data/OpenConfig.json
 proto/auto/
 proto/protoc.exe
 GM Handbook.txt
-config.json
-mitmdump.exe
-grasscutter.jar
+config.json
+mitmdump.exe
+grasscutter.jar
 mongod.exe

Grasscutter-Protos

@@ -1 +1 @@
-Subproject commit ba0eab7d629b5adeb145bc430e14ffcb4bdf3d6a
+Subproject commit dd17415b71dfcff049e72dbe8a76173611f4b0ae

README.md

@@ -12,8 +12,11 @@ A WIP server reimplementation for *some anime game* 2.3-2.6
 * Friends list
 * Co-op *partially* work
 # Quick setup guide
+### Note
+* If you update from an older version, delete `config.json` for regeneration
+
 ### Prerequisites
-* JDK-8u202 ([mirror link](https://mirrors.huaweicloud.com/java/jdk/8u202-b08/) since Oracle required an account to download old builds)
+* Java 16
 * Mongodb (recommended 4.0+)
 * Proxy daemon: mitmproxy (mitmdump, recommended), Fiddler Classic, etc.
 
@@ -26,7 +29,7 @@ A WIP server reimplementation for *some anime game* 2.3-2.6
 ### Connecting with the client
 ½. Create an account using *server console command* below
 1. Run a proxy daemon: (choose either one)
-	- mitmdump: `mitmdump -s proxy.py --ssl-insecure`
+	- mitmdump: `mitmdump -s proxy.py -k`
 	- Fiddler Classic: Run Fiddler Classic, turn on `Decrypt https traffic` in setting and change the default port there (Tools -> Options -> Connections) to anything other than `8888`, and load [this script](https://github.lunatic.moe/fiddlerscript).
 	- [Hosts file](https://github.com/Melledy/Grasscutter/wiki/Running#traffic-route-map)
 2. Trust CA certificate:
@@ -34,39 +37,36 @@ A WIP server reimplementation for *some anime game* 2.3-2.6
 2. Set network proxy to `127.0.0.1:8080` or the proxy port you specified.
 4. *yoink*
 
-* or you can use `run.cmd` to start Server & Proxy daemon with one click
+* or you can use `start.cmd` to start Server & Proxy daemon with one click
 
 # Grasscutter commands
-### Server console commands
+There is a dummy user named "Server" in every player's friends list that you can message to use commands. Commands also work in other chat rooms, such as private/team chats.
 
 `account create [username] {playerid}` - Creates an account with the specified username and the in-game uid for that account. The playerid parameter is optional and will be auto generated if not set.
 
-### In-Game commands
-There is a dummy user named "Server" in every player's friends list that you can message to use commands. Commands also work in other chat rooms, such as private/team chats.
+`spawn [monster id] [level] [amount]`
 
-`!spawn [monster id] [level] [amount]`
+`give [item id] [amount]`
 
-`!give [item id] [amount]`
+`givechar [avatar id] [level]`
 
-`!givechar [avatar id] [level]`
+`drop [item id] [amount]`
 
-`!drop [item id] [amount]`
+`killall`
 
-`!killall`
+`setworldlevel [level]` - Relog to see effects properly
 
-`!setworldlevel [level]` - Relog to see effects properly
+`godmode` - Prevents you from taking damage
 
-`!godmode` - Prevents you from taking damage
+`resetconst` - Resets the constellation level on your current active character, will need to relog after using the command to see any changes.
 
-`!resetconst` - Resets the constellation level on your current active character, will need to relog after using the command to see any changes.
+`setstats [stats] [amount]` - Changes the current character's specified stat.
 
-`!setstats [stats] [amount]` - Changes the current character's specified stat.
+`clearartifacts` - Deletes all unequipped and unlocked level 0 artifacts, **including yellow rarity ones** from your inventory
 
-`!clearartifacts` - Deletes all unequipped and unlocked level 0 artifacts, **including yellow rarity ones** from your inventory
+`pos` - Gets your current coordinate.
 
-`!pos` - Gets your current coordinate.
-
-`!weather [weather id] [climate id]` - Changes the current weather.
+`weather [weather id] [climate id]` - Changes the current weather.
 
 *More commands will be updated in the [wiki](https://github.com/Melledy/Grasscutter/wiki/).*
 

build.gradle

@@ -14,17 +14,16 @@ plugins {
     id 'application'
 }
 
-sourceCompatibility = 1.8
-targetCompatibility = 1.8
+sourceCompatibility = 16
+targetCompatibility = 16
 
 repositories {
     mavenCentral()
-    jcenter()
 }
 
 dependencies {
     implementation fileTree(dir: 'lib', include: ['*.jar'])
-
+    
 	implementation group: 'org.slf4j', name: 'slf4j-api', version: '1.7.32'
 	implementation group: 'ch.qos.logback', name: 'logback-core', version: '1.2.6'
     implementation group: 'ch.qos.logback', name: 'logback-classic', version: '1.2.6'
@@ -33,9 +32,9 @@ dependencies {
 	implementation group: 'com.google.code.gson', name: 'gson', version: '2.8.8'
 	implementation group: 'com.google.protobuf', name: 'protobuf-java', version: '3.18.1'
 	
-	implementation group: 'org.reflections', name: 'reflections', version: '0.9.12'
+	implementation group: 'org.reflections', name: 'reflections', version: '0.10.2'
 
-	implementation group: 'dev.morphia.morphia', name: 'core', version: '1.6.1'
+	implementation group: 'dev.morphia.morphia', name: 'morphia-core', version: '2.2.6'
 
     implementation group: 'org.greenrobot', name: 'eventbus-java', version: '3.3.1'
 }

proxy.py

@@ -57,7 +57,9 @@ class MlgmXyysd_Genshin_Impact_Proxy:
         "minor-api.mihoyo.com",
         "public-data-api.mihoyo.com",
         "uspider.yuanshen.com",
-        "sdk-static.mihoyo.com"
+        "sdk-static.mihoyo.com",
+        "abtest-api-data-sg.hoyoverse.com",
+        "log-upload-os.hoyoverse.com"
     ]
 
     def request(self, flow: http.HTTPFlow) -> None:

src/main/java/emu/grasscutter/Config.java

@@ -27,9 +27,11 @@ public final class Config {
 		public String Ip = "0.0.0.0";
 		public String PublicIp = "127.0.0.1";
 		public int Port = 443;
+		public int PublicPort = 0;
 		public String KeystorePath = "./keystore.p12";
-		public String KeystorePassword = "";
+		public String KeystorePassword = "123456";
 		public Boolean UseSSL = true;
+		public Boolean FrontHTTPS = true;
 
 		public boolean AutomaticallyCreateAccounts = false;
 
@@ -52,6 +54,7 @@ public final class Config {
 		public String Ip = "0.0.0.0";
 		public String PublicIp = "127.0.0.1";
 		public int Port = 22102;
+		public int PublicPort = 0;
 
 		public String DispatchServerDatabaseUrl = "mongodb://localhost:27017";
 		public String DispatchServerDatabaseCollection = "grasscutter";

src/main/java/emu/grasscutter/Grasscutter.java

@@ -34,7 +34,7 @@ public final class Grasscutter {
 	private static DispatchServer dispatchServer;
 	private static GameServer gameServer;
 	
-	public static final Reflections reflector = new Reflections();
+	public static final Reflections reflector = new Reflections("emu.grasscutter");
 	
 	static {
 		// Declare logback configuration.
@@ -118,6 +118,7 @@ public final class Grasscutter {
 	
 	public static void startConsole() {
 		String input;
+		getLogger().info("Done! For help, type \"help\"");
 		try (BufferedReader br = new BufferedReader(new InputStreamReader(System.in))) {
 			while ((input = br.readLine()) != null) {
 				try {

src/main/java/emu/grasscutter/command/CommandMap.java

@@ -11,6 +11,7 @@ import java.util.*;
 public final class CommandMap {
     private final Map<String, CommandHandler> commands = new HashMap<>();
     private final Map<String, Command> annotations = new HashMap<>();
+    
     public CommandMap() {
         this(false);
     }

src/main/java/emu/grasscutter/command/commands/ClearWeaponsCommand.java

@@ -0,0 +1,29 @@
+package emu.grasscutter.command.commands;
+
+import emu.grasscutter.command.Command;
+import emu.grasscutter.command.CommandHandler;
+import emu.grasscutter.game.GenshinPlayer;
+import emu.grasscutter.game.inventory.Inventory;
+import emu.grasscutter.game.inventory.ItemType;
+
+import java.util.List;
+
+@Command(label = "clearweapons", usage = "clearweapons",
+        description = "Deletes all unequipped and unlocked weapons, including yellow rarity ones from your inventory",
+        aliases = {"clearwpns"}, permission = "player.clearweapons")
+public final class ClearWeaponsCommand implements CommandHandler {
+
+    @Override
+    public void execute(GenshinPlayer sender, List<String> args) {
+        if (sender == null) {
+            CommandHandler.sendMessage(null, "Run this command in-game.");
+            return; // TODO: clear player's weapons from console or other players
+        }
+
+        Inventory playerInventory = sender.getInventory();
+        playerInventory.getItems().values().stream()
+                .filter(item -> item.getItemType() == ItemType.ITEM_WEAPON)
+                .filter(item -> !item.isLocked() && !item.isEquipped())
+                .forEach(item -> playerInventory.removeItem(item, item.getCount()));
+    }
+}

src/main/java/emu/grasscutter/command/commands/TalentCommand.java

@@ -0,0 +1,149 @@
+package emu.grasscutter.command.commands;
+
+import emu.grasscutter.command.Command;
+import emu.grasscutter.command.CommandHandler;
+import emu.grasscutter.data.def.AvatarSkillDepotData;
+import emu.grasscutter.game.GenshinPlayer;
+import emu.grasscutter.game.avatar.GenshinAvatar;
+import emu.grasscutter.game.entity.EntityAvatar;
+import emu.grasscutter.server.packet.send.PacketAvatarSkillChangeNotify;
+import emu.grasscutter.server.packet.send.PacketAvatarSkillUpgradeRsp;
+
+import java.util.List;
+
+@Command(label = "talent", usage = "talent <talentID> <value>",
+        description = "Set talent level for your current active character", permission = "player.settalent")
+public class TalentCommand implements CommandHandler {
+
+    @Override
+    public void execute(GenshinPlayer sender, List<String> args) {
+        if (sender == null) {
+            CommandHandler.sendMessage(null, "Run this command in-game.");
+            return;
+        }
+
+        if (args.size() < 1){
+            CommandHandler.sendMessage(sender, "To set talent level: /talent set <talentID> <value>");
+            CommandHandler.sendMessage(sender, "Another way to set talent level: /talent <n or e or q> <value>");
+            CommandHandler.sendMessage(sender, "To get talent ID: /talent getid");
+            return;
+        }
+
+        String cmdSwitch = args.get(0);
+        switch (cmdSwitch) {
+            default:
+                CommandHandler.sendMessage(sender, "To set talent level: /talent set <talentID> <value>");
+                CommandHandler.sendMessage(sender, "Another way to set talent level: /talent <n or e or q> <value>");
+                CommandHandler.sendMessage(sender, "To get talent ID: /talent getid");
+            return;
+            case "set":
+                    try {
+                        int skillId = Integer.parseInt(args.get(1));
+                        int nextLevel = Integer.parseInt(args.get(2));
+                        EntityAvatar entity = sender.getTeamManager().getCurrentAvatarEntity();
+                        GenshinAvatar avatar = entity.getAvatar(); 
+                        int skillIdNorAtk = avatar.getData().getSkillDepot().getSkills().get(0);
+                        int skillIdE = avatar.getData().getSkillDepot().getSkills().get(1);
+                        int skillIdQ = avatar.getData().getSkillDepot().getEnergySkill();
+                        int currentLevelNorAtk = avatar.getSkillLevelMap().get(skillIdNorAtk);
+                        int currentLevelE = avatar.getSkillLevelMap().get(skillIdE);
+                        int currentLevelQ = avatar.getSkillLevelMap().get(skillIdQ);
+                        if (args.size() < 2){
+                            CommandHandler.sendMessage(sender, "To set talent level: /talent set <talentID> <value>");
+                            CommandHandler.sendMessage(sender, "To get talent ID: /talent getid");
+                            return;
+                        }
+                        if (nextLevel > 16){ 
+                            CommandHandler.sendMessage(sender, "Invalid talent level. Level should be lower than 16");
+                            return;
+                        }
+                            if (skillId == skillIdNorAtk){ 
+                            // Upgrade skill
+                            avatar.getSkillLevelMap().put(skillIdNorAtk, nextLevel);
+                            avatar.save();
+                
+                            // Packet
+                            sender.sendPacket(new PacketAvatarSkillChangeNotify(avatar, skillIdNorAtk, currentLevelNorAtk, nextLevel));
+                            sender.sendPacket(new PacketAvatarSkillUpgradeRsp(avatar, skillIdNorAtk, currentLevelNorAtk, nextLevel));
+                            CommandHandler.sendMessage(sender, "Set talent Normal ATK to " + nextLevel + ".");
+                        }    
+                        if (skillId == skillIdE){ 
+                            // Upgrade skill
+                            avatar.getSkillLevelMap().put(skillIdE, nextLevel);
+                            avatar.save();
+                
+                            // Packet
+                            sender.sendPacket(new PacketAvatarSkillChangeNotify(avatar, skillIdE, currentLevelE, nextLevel));
+                            sender.sendPacket(new PacketAvatarSkillUpgradeRsp(avatar, skillIdE, currentLevelE, nextLevel));
+                            CommandHandler.sendMessage(sender, "Set talent E to " + nextLevel + ".");
+                        }
+                        if (skillId == skillIdQ){ 
+                            // Upgrade skill
+                            avatar.getSkillLevelMap().put(skillIdQ, nextLevel);
+                            avatar.save();
+                
+                            // Packet
+                            sender.sendPacket(new PacketAvatarSkillChangeNotify(avatar, skillIdQ, currentLevelQ, nextLevel));
+                            sender.sendPacket(new PacketAvatarSkillUpgradeRsp(avatar, skillIdQ, currentLevelQ, nextLevel));
+                            CommandHandler.sendMessage(sender, "Set talent Q to " + nextLevel + ".");
+                        }       
+                                
+                    } catch (NumberFormatException ignored) {
+                        CommandHandler.sendMessage(sender, "Invalid skill ID.");
+                        return;
+                    }
+                
+                break;
+            case "n": case "e": case "q":
+                try {
+                    EntityAvatar entity = sender.getTeamManager().getCurrentAvatarEntity();
+                    GenshinAvatar avatar = entity.getAvatar();
+                    AvatarSkillDepotData SkillDepot = avatar.getData().getSkillDepot();
+                    int skillId;
+                    switch (cmdSwitch) {
+                        default:
+                            skillId = SkillDepot.getSkills().get(0);
+                            break;
+                        case "e":
+                            skillId = SkillDepot.getSkills().get(1);
+                            break;
+                        case "q":
+                            skillId = SkillDepot.getEnergySkill();
+                            break;
+                    }
+                    int nextLevel = Integer.parseInt(args.get(1));
+                    int currentLevel = avatar.getSkillLevelMap().get(skillId);
+                    if (args.size() < 1){
+                        CommandHandler.sendMessage(sender, "To set talent level: /talent <n or e or q> <value>");
+                        return;
+                    }
+                    if (nextLevel > 16){
+                        CommandHandler.sendMessage(sender, "Invalid talent level. Level should be lower than 16");
+                        return;
+                    }
+                    // Upgrade skill
+                    avatar.getSkillLevelMap().put(skillId, nextLevel);
+                    avatar.save();
+                    // Packet
+                    sender.sendPacket(new PacketAvatarSkillChangeNotify(avatar, skillId, currentLevel, nextLevel));
+                    sender.sendPacket(new PacketAvatarSkillUpgradeRsp(avatar, skillId, currentLevel, nextLevel));
+                    CommandHandler.sendMessage(sender, "Set this talent to " + nextLevel + ".");
+                } catch (NumberFormatException ignored) {
+                    CommandHandler.sendMessage(sender, "Invalid talent level.");
+                    return;
+                }
+                break;
+            case "getid":           
+                    EntityAvatar entity = sender.getTeamManager().getCurrentAvatarEntity();
+                    GenshinAvatar avatar = entity.getAvatar(); 
+                    int skillIdNorAtk = avatar.getData().getSkillDepot().getSkills().get(0);
+                    int skillIdE = avatar.getData().getSkillDepot().getSkills().get(1);
+                    int skillIdQ = avatar.getData().getSkillDepot().getEnergySkill();
+                    
+                    CommandHandler.sendMessage(sender, "Normal Attack ID " + skillIdNorAtk + ".");
+                    CommandHandler.sendMessage(sender, "E skill ID " + skillIdE + ".");
+                    CommandHandler.sendMessage(sender, "Q skill ID " + skillIdQ + ".");
+                break;
+        }
+    }
+}

src/main/java/emu/grasscutter/database/DatabaseCounter.java

@@ -3,7 +3,7 @@ package emu.grasscutter.database;
 import dev.morphia.annotations.Entity;
 import dev.morphia.annotations.Id;
 
-@Entity(value = "counters", noClassnameStored = true)
+@Entity(value = "counters", useDiscriminator = false)
 public class DatabaseCounter {
 	@Id
 	private String id;

src/main/java/emu/grasscutter/database/DatabaseHelper.java

@@ -2,41 +2,33 @@ package emu.grasscutter.database;
 
 import java.util.List;
 
-import com.mongodb.WriteResult;
-
-import dev.morphia.query.FindOptions;
-import dev.morphia.query.Query;
-import dev.morphia.query.internal.MorphiaCursor;
+import com.mongodb.client.result.DeleteResult;
+import dev.morphia.query.experimental.filters.Filters;
 import emu.grasscutter.GenshinConstants;
-import emu.grasscutter.Grasscutter;
 import emu.grasscutter.game.Account;
 import emu.grasscutter.game.GenshinPlayer;
 import emu.grasscutter.game.avatar.GenshinAvatar;
 import emu.grasscutter.game.friends.Friendship;
 import emu.grasscutter.game.inventory.GenshinItem;
 
-public class DatabaseHelper {
-	
-	protected static FindOptions FIND_ONE = new FindOptions().limit(1);
-	
+public final class DatabaseHelper {
 	public static Account createAccount(String username) {
 		return createAccountWithId(username, 0);
 	}
-	
+
 	public static Account createAccountWithId(String username, int reservedId) {
 		// Unique names only
 		Account exists = DatabaseHelper.getAccountByName(username);
 		if (exists != null) {
 			return null;
 		}
-		
+
 		// Make sure there are no id collisions
 		if (reservedId > 0) {
 			// Cannot make account with the same uid as the server console
 			if (reservedId == GenshinConstants.SERVER_CONSOLE_UID) {
 				return null;
 			}
-			
 			exists = DatabaseHelper.getAccountByPlayerId(reservedId);
 			if (exists != null) {
 				return null;
@@ -47,10 +39,10 @@ public class DatabaseHelper {
 		Account account = new Account();
 		account.setUsername(username);
 		account.setId(Integer.toString(DatabaseManager.getNextId(account)));
-		
+
 		if (reservedId > 0) {
 			account.setPlayerId(reservedId);
-		} 
+		}
 
 		DatabaseHelper.saveAccount(account);
 		return account;
@@ -63,65 +55,52 @@ public class DatabaseHelper {
 		if (exists != null) {
 			return null;
 		}
-		
+
 		// Account
 		Account account = new Account();
 		account.setId(Integer.toString(DatabaseManager.getNextId(account)));
 		account.setUsername(username);
 		account.setPassword(password);
-        DatabaseHelper.saveAccount(account);
+		DatabaseHelper.saveAccount(account);
 		return account;
 	}
 
 	public static void saveAccount(Account account) {
 		DatabaseManager.getAccountDatastore().save(account);
 	}
-	
+
 	public static Account getAccountByName(String username) {
-		MorphiaCursor<Account> cursor = DatabaseManager.getAccountDatastore().createQuery(Account.class).field("username").equalIgnoreCase(username).find(FIND_ONE);
-		if (!cursor.hasNext()) return null;
-		return cursor.next();
+		return DatabaseManager.getDatastore().find(Account.class).filter(Filters.eq("username", username)).first();
 	}
-	
+
 	public static Account getAccountByToken(String token) {
-		if (token == null) return null;
-		MorphiaCursor<Account> cursor = DatabaseManager.getAccountDatastore().createQuery(Account.class).field("token").equal(token).find(FIND_ONE);
-		if (!cursor.hasNext()) return null;
-		return cursor.next();
+		if(token == null) return null;
+		return DatabaseManager.getDatastore().find(Account.class).filter(Filters.eq("token", token)).first();
 	}
-	
+
 	public static Account getAccountById(String uid) {
-		MorphiaCursor<Account> cursor = DatabaseManager.getAccountDatastore().createQuery(Account.class).field("_id").equal(uid).find(FIND_ONE);
-		if (!cursor.hasNext()) return null;
-		return cursor.next();
+		return DatabaseManager.getDatastore().find(Account.class).filter(Filters.eq("_id", uid)).first();
 	}
-	
+
 	public static Account getAccountByPlayerId(int playerId) {
-		MorphiaCursor<Account> cursor = DatabaseManager.getAccountDatastore().createQuery(Account.class).field("playerId").equal(playerId).find(FIND_ONE);
-		if (!cursor.hasNext()) return null;
-		return cursor.next();
+		return DatabaseManager.getDatastore().find(Account.class).filter(Filters.eq("playerId", playerId)).first();
 	}
-	
+
 	public static boolean deleteAccount(String username) {
-		Query<Account> q = DatabaseManager.getAccountDatastore().createQuery(Account.class).field("username").equalIgnoreCase(username);
-		return DatabaseManager.getDatastore().findAndDelete(q) != null;
+		return DatabaseManager.getDatastore().find(Account.class).filter(Filters.eq("username", username)).delete().getDeletedCount() > 0;
 	}
-	
+
 	public static GenshinPlayer getPlayerById(int id) {
-		Query<GenshinPlayer> query = DatabaseManager.getDatastore().createQuery(GenshinPlayer.class).field("_id").equal(id);
-		MorphiaCursor<GenshinPlayer> cursor = query.find(FIND_ONE);
-		if (!cursor.hasNext()) return null;
-		return cursor.next();
+		return DatabaseManager.getDatastore().find(GenshinPlayer.class).filter(Filters.eq("_id", id)).first();
 	}
-	
+
 	public static boolean checkPlayerExists(int id) {
-		MorphiaCursor<GenshinPlayer> query = DatabaseManager.getDatastore().createQuery(GenshinPlayer.class).field("_id").equal(id).find(FIND_ONE);
-		return query.hasNext();
+		return DatabaseManager.getDatastore().find(GenshinPlayer.class).filter(Filters.eq("_id", id)).first() != null;
 	}
-	
+
 	public static synchronized GenshinPlayer createPlayer(GenshinPlayer character, int reservedId) {
 		// Check if reserved id
-		int id = 0;
+		int id;
 		if (reservedId > 0 && !checkPlayerExists(reservedId)) {
 			id = reservedId;
 			character.setUid(id);
@@ -136,10 +115,10 @@ public class DatabaseHelper {
 		DatabaseManager.getDatastore().save(character);
 		return character;
 	}
-	
+
 	public static synchronized int getNextPlayerId(int reservedId) {
 		// Check if reserved id
-		int id = 0;
+		int id;
 		if (reservedId > 0 && !checkPlayerExists(reservedId)) {
 			id = reservedId;
 		} else {
@@ -150,41 +129,37 @@ public class DatabaseHelper {
 		}
 		return id;
 	}
-	
+
 	public static void savePlayer(GenshinPlayer character) {
 		DatabaseManager.getDatastore().save(character);
 	}
-	
+
 	public static void saveAvatar(GenshinAvatar avatar) {
 		DatabaseManager.getDatastore().save(avatar);
 	}
-	
+
 	public static List<GenshinAvatar> getAvatars(GenshinPlayer player) {
-		Query<GenshinAvatar> query = DatabaseManager.getDatastore().createQuery(GenshinAvatar.class).filter("ownerId", player.getUid());
-		return query.find().toList();
+		return DatabaseManager.getDatastore().find(GenshinAvatar.class).filter(Filters.eq("ownerId", player.getUid())).stream().toList();
 	}
-	
+
 	public static void saveItem(GenshinItem item) {
 		DatabaseManager.getDatastore().save(item);
 	}
-	
+
 	public static boolean deleteItem(GenshinItem item) {
-		WriteResult result = DatabaseManager.getDatastore().delete(item);
+		DeleteResult result = DatabaseManager.getDatastore().delete(item);
 		return result.wasAcknowledged();
 	}
-	
+
 	public static List<GenshinItem> getInventoryItems(GenshinPlayer player) {
-		Query<GenshinItem> query = DatabaseManager.getDatastore().createQuery(GenshinItem.class).filter("ownerId", player.getUid());
-		return query.find().toList();
+		return DatabaseManager.getDatastore().find(GenshinItem.class).filter(Filters.eq("ownerId", player.getUid())).stream().toList();
 	}
 	public static List<Friendship> getFriends(GenshinPlayer player) {
-		Query<Friendship> query = DatabaseManager.getDatastore().createQuery(Friendship.class).filter("ownerId", player.getUid());
-		return query.find().toList();
+		return DatabaseManager.getDatastore().find(Friendship.class).filter(Filters.eq("ownerId", player.getUid())).stream().toList();
 	}
-	
+
 	public static List<Friendship> getReverseFriends(GenshinPlayer player) {
-		Query<Friendship> query = DatabaseManager.getDatastore().createQuery(Friendship.class).filter("friendId", player.getUid());
-		return query.find().toList();
+		return DatabaseManager.getDatastore().find(Friendship.class).filter(Filters.eq("friendId", player.getUid())).stream().toList();
 	}
 
 	public static void saveFriendship(Friendship friendship) {
@@ -196,13 +171,9 @@ public class DatabaseHelper {
 	}
 
 	public static Friendship getReverseFriendship(Friendship friendship) {
-		Query<Friendship> query = DatabaseManager.getDatastore().createQuery(Friendship.class);
-		query.and(
-			query.criteria("ownerId").equal(friendship.getFriendId()),
-			query.criteria("friendId").equal(friendship.getOwnerId())
-		);
-		MorphiaCursor<Friendship> reverseFriendship = query.find(FIND_ONE);
-		if (!reverseFriendship.hasNext()) return null;
-		return reverseFriendship.next();
+		return DatabaseManager.getDatastore().find(Friendship.class).filter(Filters.and(
+				Filters.eq("ownerId", friendship.getFriendId()),
+				Filters.eq("friendId", friendship.getOwnerId())
+		)).first();
 	}
 }

src/main/java/emu/grasscutter/database/DatabaseManager.java

@@ -1,13 +1,16 @@
 package emu.grasscutter.database;
 
-import com.mongodb.MongoClient;
 import com.mongodb.MongoClientURI;
 import com.mongodb.MongoCommandException;
+import com.mongodb.client.MongoClient;
+import com.mongodb.client.MongoClients;
 import com.mongodb.client.MongoDatabase;
 import com.mongodb.client.MongoIterable;
 
 import dev.morphia.Datastore;
 import dev.morphia.Morphia;
+import dev.morphia.mapping.MapperOptions;
+import dev.morphia.query.experimental.filters.Filters;
 import emu.grasscutter.Grasscutter;
 import emu.grasscutter.game.Account;
 import emu.grasscutter.game.GenshinPlayer;
@@ -16,6 +19,7 @@ import emu.grasscutter.game.friends.Friendship;
 import emu.grasscutter.game.inventory.GenshinItem;
 
 public final class DatabaseManager {
+
 	private static MongoClient mongoClient;
 	private static MongoClient dispatchMongoClient;
 
@@ -26,15 +30,11 @@ public final class DatabaseManager {
 		DatabaseCounter.class, Account.class, GenshinPlayer.class, GenshinAvatar.class, GenshinItem.class, Friendship.class
 	};
     
-    public static MongoClient getMongoClient() {
-        return mongoClient;
+    public static Datastore getDatastore() {
+    	return datastore;
     }
-
-	public static Datastore getDatastore() {
-		return datastore;
-	}
-
-	public static MongoDatabase getDatabase() {
+    
+    public static MongoDatabase getDatabase() {
     	return getDatastore().getDatabase();
     }
 
@@ -50,27 +50,23 @@ public final class DatabaseManager {
 	
 	public static void initialize() {
 		// Initialize
-		mongoClient = new MongoClient(new MongoClientURI(Grasscutter.getConfig().DatabaseUrl));
-		Morphia morphia = new Morphia();
+		MongoClient mongoClient = MongoClients.create(Grasscutter.getConfig().DatabaseUrl);
 		
-		// TODO Update when migrating to Morphia 2.0
-		morphia.getMapper().getOptions().setStoreEmpties(true);
-		morphia.getMapper().getOptions().setStoreNulls(false);
-		morphia.getMapper().getOptions().setDisableEmbeddedIndexes(true);
-		
-		// Map
-		morphia.map(mappedClasses);
-		
-		// Build datastore
-		datastore = morphia.createDatastore(mongoClient, Grasscutter.getConfig().DatabaseCollection);
+		// Set mapper options.
+		MapperOptions mapperOptions = MapperOptions.builder()
+				.storeEmpties(true).storeNulls(false).build();
+		// Create data store.
+		datastore = Morphia.createDatastore(mongoClient, Grasscutter.getConfig().DatabaseCollection, mapperOptions);
+		// Map classes.
+		datastore.getMapper().map(mappedClasses);
 		
 		// Ensure indexes
 		try {
 			datastore.ensureIndexes();
-		} catch (MongoCommandException e) {
-			Grasscutter.getLogger().info("Mongo index error: ", e);
+		} catch (MongoCommandException exception) {
+			Grasscutter.getLogger().info("Mongo index error: ", exception);
 			// Duplicate index error
-			if (e.getCode() == 85) {
+			if (exception.getCode() == 85) {
 				// Drop all indexes and re add them
 				MongoIterable<String> collections = datastore.getDatabase().listCollectionNames();
 				for (String name : collections) {
@@ -82,8 +78,8 @@ public final class DatabaseManager {
 		}
 
 		if(Grasscutter.getConfig().RunMode.equalsIgnoreCase("GAME_ONLY")) {
-			dispatchMongoClient = new MongoClient(new MongoClientURI(Grasscutter.getConfig().getGameServerOptions().DispatchServerDatabaseUrl));
-			dispatchDatastore = morphia.createDatastore(dispatchMongoClient, Grasscutter.getConfig().getGameServerOptions().DispatchServerDatabaseCollection);
+			dispatchMongoClient = MongoClients.create(Grasscutter.getConfig().getGameServerOptions().DispatchServerDatabaseUrl);
+			dispatchDatastore = Morphia.createDatastore(dispatchMongoClient, Grasscutter.getConfig().getGameServerOptions().DispatchServerDatabaseCollection);
 
 			// Ensure indexes for dispatch server
 			try {
@@ -103,9 +99,9 @@ public final class DatabaseManager {
 			}
 		}
 	}
-	
+
 	public static synchronized int getNextId(Class<?> c) {
-		DatabaseCounter counter = getDatastore().createQuery(DatabaseCounter.class).field("_id").equal(c.getSimpleName()).find().tryNext();
+		DatabaseCounter counter = getDatastore().find(DatabaseCounter.class).filter(Filters.eq("_id", c.getName())).first();
 		if (counter == null) {
 			counter = new DatabaseCounter(c.getSimpleName());
 		}
@@ -115,7 +111,7 @@ public final class DatabaseManager {
 			getDatastore().save(counter);
 		}
 	}
-	
+
 	public static synchronized int getNextId(Object o) {
 		return getNextId(o.getClass());
 	}

src/main/java/emu/grasscutter/game/Account.java

@@ -1,22 +1,18 @@
 package emu.grasscutter.game;
 
-import dev.morphia.annotations.AlsoLoad;
-import dev.morphia.annotations.Collation;
-import dev.morphia.annotations.Entity;
-import dev.morphia.annotations.Id;
-import dev.morphia.annotations.Indexed;
-import dev.morphia.annotations.PreLoad;
+import dev.morphia.annotations.*;
 import emu.grasscutter.database.DatabaseHelper;
 import emu.grasscutter.utils.Crypto;
 import emu.grasscutter.utils.Utils;
-import dev.morphia.annotations.IndexOptions;
 
 import java.util.ArrayList;
 import java.util.List;
 
+import org.bson.Document;
+
 import com.mongodb.DBObject;
 
-@Entity(value = "accounts", noClassnameStored = true)
+@Entity(value = "accounts", useDiscriminator = false)
 public class Account {
 	@Id private String id;
 	
@@ -31,7 +27,7 @@ public class Account {
 	private String token;
 	private String sessionKey; // Session token for dispatch server
 	private List<String> permissions;
-
+	
 	@Deprecated
 	public Account() {
 		this.permissions = new ArrayList<>();
@@ -122,15 +118,15 @@ public class Account {
 		return this.token;
 	}
 	
-	@PreLoad
-	public void onLoad(DBObject dbObj) {
-		// Grant the superuser permissions to accounts created before the permissions update
-		if (!dbObj.containsField("permissions")) {
-			this.addPermission("*");
-		}
-	}
-	
 	public void save() {
 		DatabaseHelper.saveAccount(this);
 	}
+
+	@PreLoad
+	public void onLoad(Document document) {
+		// Grant the superuser permissions to accounts created before the permissions update
+		if (!document.containsKey("permissions")) {
+			this.addPermission("*");
+		}
+	}
 }

src/main/java/emu/grasscutter/game/GenshinPlayer.java

@@ -18,6 +18,7 @@ import emu.grasscutter.game.friends.PlayerProfile;
 import emu.grasscutter.game.gacha.PlayerGachaInfo;
 import emu.grasscutter.game.inventory.GenshinItem;
 import emu.grasscutter.game.inventory.Inventory;
+import emu.grasscutter.game.player.PlayerBirthday;
 import emu.grasscutter.game.props.ActionReason;
 import emu.grasscutter.game.props.PlayerProperty;
 import emu.grasscutter.net.packet.GenshinPacket;
@@ -40,7 +41,7 @@ import emu.grasscutter.utils.Position;
 import it.unimi.dsi.fastutil.ints.Int2ObjectMap;
 import it.unimi.dsi.fastutil.ints.Int2ObjectOpenHashMap;
 
-@Entity(value = "players", noClassnameStored = true)
+@Entity(value = "players", useDiscriminator = false)
 public class GenshinPlayer {
 	@Id private int id;
 	@Indexed(options = @IndexOptions(unique = true)) private String accountId;
@@ -52,6 +53,7 @@ public class GenshinPlayer {
 	private int nameCardId = 210001;
 	private Position pos;
 	private Position rotation;
+	private PlayerBirthday birthday;
 	
 	private Map<Integer, Integer> properties;
 	private Set<Integer> nameCardList;
@@ -121,6 +123,8 @@ public class GenshinPlayer {
 		this.combatInvokeHandler = new InvokeHandler(PacketCombatInvocationsNotify.class);
 		this.abilityInvokeHandler = new InvokeHandler(PacketAbilityInvocationsNotify.class);
 		this.clientAbilityInitFinishHandler = new InvokeHandler(PacketClientAbilityInitFinishNotify.class);
+
+		this.birthday = new PlayerBirthday();
 	}
 	
 	// On player creation
@@ -132,6 +136,7 @@ public class GenshinPlayer {
 		this.nickname = "Traveler";
 		this.signature = "";
 		this.teamManager = new TeamManager(this);
+		this.birthday = new PlayerBirthday();
 		this.setProperty(PlayerProperty.PROP_PLAYER_LEVEL, 1);
 		this.setProperty(PlayerProperty.PROP_IS_SPRING_AUTO_USE, 1);
 		this.setProperty(PlayerProperty.PROP_SPRING_AUTO_USE_PERCENT, 50);
@@ -634,6 +639,15 @@ public class GenshinPlayer {
 		return onlineInfo.build();
 	}
 
+	public PlayerBirthday getBirthday(){
+		return this.birthday;
+	}
+
+	public void setBirthday(int d, int m) {
+		this.birthday = new PlayerBirthday(d, m);
+		this.updateProfile();
+	}
+
 	public SocialDetail.Builder getSocialDetail() {
 		SocialDetail.Builder social = SocialDetail.newBuilder()
 				.setUid(this.getUid())
@@ -641,7 +655,7 @@ public class GenshinPlayer {
 				.setNickname(this.getNickname())
 				.setSignature(this.getSignature())
 				.setLevel(this.getLevel())
-				.setBirthday(Birthday.newBuilder())
+				.setBirthday(this.getBirthday().getFilledProtoWhenNotEmpty())
 				.setWorldLevel(this.getWorldLevel())
 				.setUnk1(1)
 				.setUnk3(1)

src/main/java/emu/grasscutter/game/TeamInfo.java

@@ -3,10 +3,12 @@ package emu.grasscutter.game;
 import java.util.ArrayList;
 import java.util.List;
 
+import dev.morphia.annotations.Entity;
 import emu.grasscutter.GenshinConstants;
 import emu.grasscutter.Grasscutter;
 import emu.grasscutter.game.avatar.GenshinAvatar;
 
+@Entity
 public class TeamInfo {
 	private String name;
 	private List<Integer> avatars;

src/main/java/emu/grasscutter/game/TeamManager.java

@@ -8,6 +8,7 @@ import java.util.List;
 import java.util.Map;
 import java.util.Set;
 
+import dev.morphia.annotations.Entity;
 import dev.morphia.annotations.Transient;
 import emu.grasscutter.GenshinConstants;
 import emu.grasscutter.Grasscutter;
@@ -41,6 +42,7 @@ import it.unimi.dsi.fastutil.ints.Int2ObjectOpenHashMap;
 import it.unimi.dsi.fastutil.ints.IntOpenHashSet;
 import it.unimi.dsi.fastutil.ints.IntSet;
 
+@Entity
 public class TeamManager {
 	@Transient private GenshinPlayer player;
 	

src/main/java/emu/grasscutter/game/avatar/AvatarProfileData.java

@@ -1,5 +1,8 @@
 package emu.grasscutter.game.avatar;
 
+import dev.morphia.annotations.Entity;
+
+@Entity
 public class AvatarProfileData {
 	private int avatarId;
 	private int level;

src/main/java/emu/grasscutter/game/avatar/GenshinAvatar.java

@@ -56,7 +56,7 @@ import it.unimi.dsi.fastutil.ints.Int2IntOpenHashMap;
 import it.unimi.dsi.fastutil.ints.Int2ObjectMap;
 import it.unimi.dsi.fastutil.ints.Int2ObjectOpenHashMap;
 
-@Entity(value = "avatars", noClassnameStored = true)
+@Entity(value = "avatars", useDiscriminator = false)
 public class GenshinAvatar {
 	@Id private ObjectId id;
 	@Indexed private int ownerId;	// Id of player that this avatar belongs to

src/main/java/emu/grasscutter/game/friends/Friendship.java

@@ -9,7 +9,7 @@ import emu.grasscutter.net.proto.FriendBriefOuterClass.FriendBrief;
 import emu.grasscutter.net.proto.FriendOnlineStateOuterClass.FriendOnlineState;
 import emu.grasscutter.net.proto.HeadImageOuterClass.HeadImage;
 
-@Entity(value = "friendships", noClassnameStored = true)
+@Entity(value = "friendships", useDiscriminator = false)
 public class Friendship {
 	@Id private ObjectId id;
 	

src/main/java/emu/grasscutter/game/friends/PlayerProfile.java

@@ -4,6 +4,7 @@ import dev.morphia.annotations.*;
 import emu.grasscutter.game.GenshinPlayer;
 import emu.grasscutter.utils.Utils;
 
+@Entity
 public class PlayerProfile {
 	@Transient private GenshinPlayer player;
 	

src/main/java/emu/grasscutter/game/gacha/PlayerGachaBannerInfo.java

@@ -1,5 +1,8 @@
 package emu.grasscutter.game.gacha;
 
+import dev.morphia.annotations.Entity;
+
+@Entity
 public class PlayerGachaBannerInfo {
 	private int pity5 = 0;
 	private int pity4 = 0;

src/main/java/emu/grasscutter/game/gacha/PlayerGachaInfo.java

@@ -1,5 +1,8 @@
 package emu.grasscutter.game.gacha;
 
+import dev.morphia.annotations.Entity;
+
+@Entity
 public class PlayerGachaInfo {
 	private PlayerGachaBannerInfo standardBanner;
 	private PlayerGachaBannerInfo eventCharacterBanner;

src/main/java/emu/grasscutter/game/inventory/GenshinItem.java

@@ -34,7 +34,7 @@ import emu.grasscutter.net.proto.SceneWeaponInfoOuterClass.SceneWeaponInfo;
 import emu.grasscutter.net.proto.WeaponOuterClass.Weapon;
 import emu.grasscutter.utils.WeightedList;
 
-@Entity(value = "items", noClassnameStored = true)
+@Entity(value = "items", useDiscriminator = false)
 public class GenshinItem {
 	@Id private ObjectId id;
 	@Indexed private int ownerId;

src/main/java/emu/grasscutter/game/player/PlayerBirthday.java

@@ -0,0 +1,70 @@
+package emu.grasscutter.game.player;
+
+import dev.morphia.annotations.Entity;
+import emu.grasscutter.net.proto.BirthdayOuterClass.Birthday;
+
+@Entity
+public class PlayerBirthday {
+    private int day;
+    private int month;
+
+    public PlayerBirthday(){
+        this.day = 0;
+        this.month = 0;
+    }
+
+    public PlayerBirthday(int day, int month){
+        this.day = day;
+        this.month = month;
+    }
+
+    public PlayerBirthday set(PlayerBirthday birth){
+        this.day = birth.day;
+        this.month = birth.month;
+
+        return this;
+    }
+
+    public PlayerBirthday set(int d, int m){
+        this.day = d;
+        this.month = m;
+
+        return this;
+    }
+
+    public PlayerBirthday setDay(int value){
+        this.day = value;
+        return this;
+    }
+
+    public PlayerBirthday setMonth(int value){
+        this.month = value;
+        return this;
+    }
+
+    public int getDay(){
+        return this.day;
+    }
+
+    public int getMonth(){
+        return this.month;
+    }
+
+    public Birthday toProto(){
+        return Birthday.newBuilder()
+                .setDay(this.getDay())
+                .setMonth(this.getMonth())
+                .build();
+    }
+
+    public Birthday.Builder getFilledProtoWhenNotEmpty(){
+        if(this.getDay() > 0)
+        {
+            return Birthday.newBuilder()
+                    .setDay(this.getDay())
+                    .setMonth(this.getMonth());
+        }
+
+        return Birthday.newBuilder();
+    }
+}

src/main/java/emu/grasscutter/net/packet/PacketOpcodes.java

@@ -1034,6 +1034,8 @@ public class PacketOpcodes {
     public static final int ShowTemplateReminderNotify = 3164;
     public static final int SignInInfoReq = 2510;
     public static final int SignInInfoRsp = 2515;
+    public static final int SitReq = 354;
+    public static final int SitRsp = 335;
     public static final int SocialDataNotify = 4063;
     public static final int SpringUseReq = 1720;
     public static final int SpringUseRsp = 1727;
@@ -1208,5 +1210,4 @@ public class PacketOpcodes {
     public static final int WorldRoutineChangeNotify = 3548;
     public static final int WorldRoutineTypeCloseNotify = 3513;
     public static final int WorldRoutineTypeRefreshNotify = 3545;
-
 }

src/main/java/emu/grasscutter/net/proto/BirthdayOuterClass.java

@@ -1,5 +1,5 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
-// source: Birthday.proto
+// source: proto/Birthday.proto
 
 package emu.grasscutter.net.proto;
 
@@ -96,6 +96,8 @@ public final class BirthdayOuterClass {
         }
       } catch (com.google.protobuf.InvalidProtocolBufferException e) {
         throw e.setUnfinishedMessage(this);
+      } catch (com.google.protobuf.UninitializedMessageException e) {
+        throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
       } catch (java.io.IOException e) {
         throw new com.google.protobuf.InvalidProtocolBufferException(
             e).setUnfinishedMessage(this);
@@ -586,9 +588,9 @@ public final class BirthdayOuterClass {
       descriptor;
   static {
     java.lang.String[] descriptorData = {
-      "\n\016Birthday.proto\"&\n\010Birthday\022\r\n\005month\030\001 " +
-      "\001(\r\022\013\n\003day\030\002 \001(\rB\033\n\031emu.grasscutter.net." +
-      "protob\006proto3"
+      "\n\024proto/Birthday.proto\"&\n\010Birthday\022\r\n\005mo" +
+      "nth\030\001 \001(\r\022\013\n\003day\030\002 \001(\rB\033\n\031emu.grasscutte" +
+      "r.net.protob\006proto3"
     };
     descriptor = com.google.protobuf.Descriptors.FileDescriptor
       .internalBuildGeneratedFileFrom(descriptorData,

src/main/java/emu/grasscutter/net/proto/EvtAvatarSitDownNotifyOuterClass.java

@@ -0,0 +1,816 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: EvtAvatarSitDownNotify.proto
+
+package emu.grasscutter.net.proto;
+
+public final class EvtAvatarSitDownNotifyOuterClass {
+  private EvtAvatarSitDownNotifyOuterClass() {}
+  public static void registerAllExtensions(
+          com.google.protobuf.ExtensionRegistryLite registry) {
+  }
+
+  public static void registerAllExtensions(
+          com.google.protobuf.ExtensionRegistry registry) {
+    registerAllExtensions(
+            (com.google.protobuf.ExtensionRegistryLite) registry);
+  }
+  public interface EvtAvatarSitDownNotifyOrBuilder extends
+          // @@protoc_insertion_point(interface_extends:EvtAvatarSitDownNotify)
+          com.google.protobuf.MessageOrBuilder {
+
+    /**
+     * <code>uint32 entity_id = 1;</code>
+     * @return The entityId.
+     */
+    int getEntityId();
+
+    /**
+     * <code>.Vector position = 2;</code>
+     * @return Whether the position field is set.
+     */
+    boolean hasPosition();
+    /**
+     * <code>.Vector position = 2;</code>
+     * @return The position.
+     */
+    emu.grasscutter.net.proto.VectorOuterClass.Vector getPosition();
+    /**
+     * <code>.Vector position = 2;</code>
+     */
+    emu.grasscutter.net.proto.VectorOuterClass.VectorOrBuilder getPositionOrBuilder();
+
+    /**
+     * <code>uint64 chair_id = 3;</code>
+     * @return The chairId.
+     */
+    long getChairId();
+  }
+  /**
+   * Protobuf type {@code EvtAvatarSitDownNotify}
+   */
+  public static final class EvtAvatarSitDownNotify extends
+          com.google.protobuf.GeneratedMessageV3 implements
+          // @@protoc_insertion_point(message_implements:EvtAvatarSitDownNotify)
+          EvtAvatarSitDownNotifyOrBuilder {
+    private static final long serialVersionUID = 0L;
+    // Use EvtAvatarSitDownNotify.newBuilder() to construct.
+    private EvtAvatarSitDownNotify(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+      super(builder);
+    }
+    private EvtAvatarSitDownNotify() {
+    }
+
+    @java.lang.Override
+    @SuppressWarnings({"unused"})
+    protected java.lang.Object newInstance(
+            UnusedPrivateParameter unused) {
+      return new EvtAvatarSitDownNotify();
+    }
+
+    @java.lang.Override
+    public final com.google.protobuf.UnknownFieldSet
+    getUnknownFields() {
+      return this.unknownFields;
+    }
+    private EvtAvatarSitDownNotify(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+      this();
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
+      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+              com.google.protobuf.UnknownFieldSet.newBuilder();
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8: {
+
+              entityId_ = input.readUInt32();
+              break;
+            }
+            case 18: {
+              emu.grasscutter.net.proto.VectorOuterClass.Vector.Builder subBuilder = null;
+              if (position_ != null) {
+                subBuilder = position_.toBuilder();
+              }
+              position_ = input.readMessage(emu.grasscutter.net.proto.VectorOuterClass.Vector.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(position_);
+                position_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+            case 24: {
+
+              chairId_ = input.readUInt64();
+              break;
+            }
+            default: {
+              if (!parseUnknownField(
+                      input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+          }
+        }
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.setUnfinishedMessage(this);
+      } catch (com.google.protobuf.UninitializedMessageException e) {
+        throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
+      } catch (java.io.IOException e) {
+        throw new com.google.protobuf.InvalidProtocolBufferException(
+                e).setUnfinishedMessage(this);
+      } finally {
+        this.unknownFields = unknownFields.build();
+        makeExtensionsImmutable();
+      }
+    }
+    public static final com.google.protobuf.Descriptors.Descriptor
+    getDescriptor() {
+      return emu.grasscutter.net.proto.EvtAvatarSitDownNotifyOuterClass.internal_static_EvtAvatarSitDownNotify_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+    internalGetFieldAccessorTable() {
+      return emu.grasscutter.net.proto.EvtAvatarSitDownNotifyOuterClass.internal_static_EvtAvatarSitDownNotify_fieldAccessorTable
+              .ensureFieldAccessorsInitialized(
+                      emu.grasscutter.net.proto.EvtAvatarSitDownNotifyOuterClass.EvtAvatarSitDownNotify.class, emu.grasscutter.net.proto.EvtAvatarSitDownNotifyOuterClass.EvtAvatarSitDownNotify.Builder.class);
+    }
+
+    public static final int ENTITY_ID_FIELD_NUMBER = 1;
+    private int entityId_;
+    /**
+     * <code>uint32 entity_id = 1;</code>
+     * @return The entityId.
+     */
+    @java.lang.Override
+    public int getEntityId() {
+      return entityId_;
+    }
+
+    public static final int POSITION_FIELD_NUMBER = 2;
+    private emu.grasscutter.net.proto.VectorOuterClass.Vector position_;
+    /**
+     * <code>.Vector position = 2;</code>
+     * @return Whether the position field is set.
+     */
+    @java.lang.Override
+    public boolean hasPosition() {
+      return position_ != null;
+    }
+    /**
+     * <code>.Vector position = 2;</code>
+     * @return The position.
+     */
+    @java.lang.Override
+    public emu.grasscutter.net.proto.VectorOuterClass.Vector getPosition() {
+      return position_ == null ? emu.grasscutter.net.proto.VectorOuterClass.Vector.getDefaultInstance() : position_;
+    }
+    /**
+     * <code>.Vector position = 2;</code>
+     */
+    @java.lang.Override
+    public emu.grasscutter.net.proto.VectorOuterClass.VectorOrBuilder getPositionOrBuilder() {
+      return getPosition();
+    }
+
+    public static final int CHAIR_ID_FIELD_NUMBER = 3;
+    private long chairId_;
+    /**
+     * <code>uint64 chair_id = 3;</code>
+     * @return The chairId.
+     */
+    @java.lang.Override
+    public long getChairId() {
+      return chairId_;
+    }
+
+    private byte memoizedIsInitialized = -1;
+    @java.lang.Override
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized == 1) return true;
+      if (isInitialized == 0) return false;
+
+      memoizedIsInitialized = 1;
+      return true;
+    }
+
+    @java.lang.Override
+    public void writeTo(com.google.protobuf.CodedOutputStream output)
+            throws java.io.IOException {
+      if (entityId_ != 0) {
+        output.writeUInt32(1, entityId_);
+      }
+      if (position_ != null) {
+        output.writeMessage(2, getPosition());
+      }
+      if (chairId_ != 0L) {
+        output.writeUInt64(3, chairId_);
+      }
+      unknownFields.writeTo(output);
+    }
+
+    @java.lang.Override
+    public int getSerializedSize() {
+      int size = memoizedSize;
+      if (size != -1) return size;
+
+      size = 0;
+      if (entityId_ != 0) {
+        size += com.google.protobuf.CodedOutputStream
+                .computeUInt32Size(1, entityId_);
+      }
+      if (position_ != null) {
+        size += com.google.protobuf.CodedOutputStream
+                .computeMessageSize(2, getPosition());
+      }
+      if (chairId_ != 0L) {
+        size += com.google.protobuf.CodedOutputStream
+                .computeUInt64Size(3, chairId_);
+      }
+      size += unknownFields.getSerializedSize();
+      memoizedSize = size;
+      return size;
+    }
+
+    @java.lang.Override
+    public boolean equals(final java.lang.Object obj) {
+      if (obj == this) {
+        return true;
+      }
+      if (!(obj instanceof emu.grasscutter.net.proto.EvtAvatarSitDownNotifyOuterClass.EvtAvatarSitDownNotify)) {
+        return super.equals(obj);
+      }
+      emu.grasscutter.net.proto.EvtAvatarSitDownNotifyOuterClass.EvtAvatarSitDownNotify other = (emu.grasscutter.net.proto.EvtAvatarSitDownNotifyOuterClass.EvtAvatarSitDownNotify) obj;
+
+      if (getEntityId()
+              != other.getEntityId()) return false;
+      if (hasPosition() != other.hasPosition()) return false;
+      if (hasPosition()) {
+        if (!getPosition()
+                .equals(other.getPosition())) return false;
+      }
+      if (getChairId()
+              != other.getChairId()) return false;
+      if (!unknownFields.equals(other.unknownFields)) return false;
+      return true;
+    }
+
+    @java.lang.Override
+    public int hashCode() {
+      if (memoizedHashCode != 0) {
+        return memoizedHashCode;
+      }
+      int hash = 41;
+      hash = (19 * hash) + getDescriptor().hashCode();
+      hash = (37 * hash) + ENTITY_ID_FIELD_NUMBER;
+      hash = (53 * hash) + getEntityId();
+      if (hasPosition()) {
+        hash = (37 * hash) + POSITION_FIELD_NUMBER;
+        hash = (53 * hash) + getPosition().hashCode();
+      }
+      hash = (37 * hash) + CHAIR_ID_FIELD_NUMBER;
+      hash = (53 * hash) + com.google.protobuf.Internal.hashLong(
+              getChairId());
+      hash = (29 * hash) + unknownFields.hashCode();
+      memoizedHashCode = hash;
+      return hash;
+    }
+
+    public static emu.grasscutter.net.proto.EvtAvatarSitDownNotifyOuterClass.EvtAvatarSitDownNotify parseFrom(
+            java.nio.ByteBuffer data)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+    public static emu.grasscutter.net.proto.EvtAvatarSitDownNotifyOuterClass.EvtAvatarSitDownNotify parseFrom(
+            java.nio.ByteBuffer data,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+    public static emu.grasscutter.net.proto.EvtAvatarSitDownNotifyOuterClass.EvtAvatarSitDownNotify parseFrom(
+            com.google.protobuf.ByteString data)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+    public static emu.grasscutter.net.proto.EvtAvatarSitDownNotifyOuterClass.EvtAvatarSitDownNotify parseFrom(
+            com.google.protobuf.ByteString data,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+    public static emu.grasscutter.net.proto.EvtAvatarSitDownNotifyOuterClass.EvtAvatarSitDownNotify parseFrom(byte[] data)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+    public static emu.grasscutter.net.proto.EvtAvatarSitDownNotifyOuterClass.EvtAvatarSitDownNotify parseFrom(
+            byte[] data,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+    public static emu.grasscutter.net.proto.EvtAvatarSitDownNotifyOuterClass.EvtAvatarSitDownNotify parseFrom(java.io.InputStream input)
+            throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+              .parseWithIOException(PARSER, input);
+    }
+    public static emu.grasscutter.net.proto.EvtAvatarSitDownNotifyOuterClass.EvtAvatarSitDownNotify parseFrom(
+            java.io.InputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+              .parseWithIOException(PARSER, input, extensionRegistry);
+    }
+    public static emu.grasscutter.net.proto.EvtAvatarSitDownNotifyOuterClass.EvtAvatarSitDownNotify parseDelimitedFrom(java.io.InputStream input)
+            throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+              .parseDelimitedWithIOException(PARSER, input);
+    }
+    public static emu.grasscutter.net.proto.EvtAvatarSitDownNotifyOuterClass.EvtAvatarSitDownNotify parseDelimitedFrom(
+            java.io.InputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+              .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+    }
+    public static emu.grasscutter.net.proto.EvtAvatarSitDownNotifyOuterClass.EvtAvatarSitDownNotify parseFrom(
+            com.google.protobuf.CodedInputStream input)
+            throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+              .parseWithIOException(PARSER, input);
+    }
+    public static emu.grasscutter.net.proto.EvtAvatarSitDownNotifyOuterClass.EvtAvatarSitDownNotify parseFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+              .parseWithIOException(PARSER, input, extensionRegistry);
+    }
+
+    @java.lang.Override
+    public Builder newBuilderForType() { return newBuilder(); }
+    public static Builder newBuilder() {
+      return DEFAULT_INSTANCE.toBuilder();
+    }
+    public static Builder newBuilder(emu.grasscutter.net.proto.EvtAvatarSitDownNotifyOuterClass.EvtAvatarSitDownNotify prototype) {
+      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+    }
+    @java.lang.Override
+    public Builder toBuilder() {
+      return this == DEFAULT_INSTANCE
+              ? new Builder() : new Builder().mergeFrom(this);
+    }
+
+    @java.lang.Override
+    protected Builder newBuilderForType(
+            com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      Builder builder = new Builder(parent);
+      return builder;
+    }
+    /**
+     * Protobuf type {@code EvtAvatarSitDownNotify}
+     */
+    public static final class Builder extends
+            com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+            // @@protoc_insertion_point(builder_implements:EvtAvatarSitDownNotify)
+            emu.grasscutter.net.proto.EvtAvatarSitDownNotifyOuterClass.EvtAvatarSitDownNotifyOrBuilder {
+      public static final com.google.protobuf.Descriptors.Descriptor
+      getDescriptor() {
+        return emu.grasscutter.net.proto.EvtAvatarSitDownNotifyOuterClass.internal_static_EvtAvatarSitDownNotify_descriptor;
+      }
+
+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+        return emu.grasscutter.net.proto.EvtAvatarSitDownNotifyOuterClass.internal_static_EvtAvatarSitDownNotify_fieldAccessorTable
+                .ensureFieldAccessorsInitialized(
+                        emu.grasscutter.net.proto.EvtAvatarSitDownNotifyOuterClass.EvtAvatarSitDownNotify.class, emu.grasscutter.net.proto.EvtAvatarSitDownNotifyOuterClass.EvtAvatarSitDownNotify.Builder.class);
+      }
+
+      // Construct using emu.grasscutter.net.proto.EvtAvatarSitDownNotifyOuterClass.EvtAvatarSitDownNotify.newBuilder()
+      private Builder() {
+        maybeForceBuilderInitialization();
+      }
+
+      private Builder(
+              com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+        super(parent);
+        maybeForceBuilderInitialization();
+      }
+      private void maybeForceBuilderInitialization() {
+        if (com.google.protobuf.GeneratedMessageV3
+                .alwaysUseFieldBuilders) {
+        }
+      }
+      @java.lang.Override
+      public Builder clear() {
+        super.clear();
+        entityId_ = 0;
+
+        if (positionBuilder_ == null) {
+          position_ = null;
+        } else {
+          position_ = null;
+          positionBuilder_ = null;
+        }
+        chairId_ = 0L;
+
+        return this;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Descriptors.Descriptor
+      getDescriptorForType() {
+        return emu.grasscutter.net.proto.EvtAvatarSitDownNotifyOuterClass.internal_static_EvtAvatarSitDownNotify_descriptor;
+      }
+
+      @java.lang.Override
+      public emu.grasscutter.net.proto.EvtAvatarSitDownNotifyOuterClass.EvtAvatarSitDownNotify getDefaultInstanceForType() {
+        return emu.grasscutter.net.proto.EvtAvatarSitDownNotifyOuterClass.EvtAvatarSitDownNotify.getDefaultInstance();
+      }
+
+      @java.lang.Override
+      public emu.grasscutter.net.proto.EvtAvatarSitDownNotifyOuterClass.EvtAvatarSitDownNotify build() {
+        emu.grasscutter.net.proto.EvtAvatarSitDownNotifyOuterClass.EvtAvatarSitDownNotify result = buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(result);
+        }
+        return result;
+      }
+
+      @java.lang.Override
+      public emu.grasscutter.net.proto.EvtAvatarSitDownNotifyOuterClass.EvtAvatarSitDownNotify buildPartial() {
+        emu.grasscutter.net.proto.EvtAvatarSitDownNotifyOuterClass.EvtAvatarSitDownNotify result = new emu.grasscutter.net.proto.EvtAvatarSitDownNotifyOuterClass.EvtAvatarSitDownNotify(this);
+        result.entityId_ = entityId_;
+        if (positionBuilder_ == null) {
+          result.position_ = position_;
+        } else {
+          result.position_ = positionBuilder_.build();
+        }
+        result.chairId_ = chairId_;
+        onBuilt();
+        return result;
+      }
+
+      @java.lang.Override
+      public Builder clone() {
+        return super.clone();
+      }
+      @java.lang.Override
+      public Builder setField(
+              com.google.protobuf.Descriptors.FieldDescriptor field,
+              java.lang.Object value) {
+        return super.setField(field, value);
+      }
+      @java.lang.Override
+      public Builder clearField(
+              com.google.protobuf.Descriptors.FieldDescriptor field) {
+        return super.clearField(field);
+      }
+      @java.lang.Override
+      public Builder clearOneof(
+              com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+        return super.clearOneof(oneof);
+      }
+      @java.lang.Override
+      public Builder setRepeatedField(
+              com.google.protobuf.Descriptors.FieldDescriptor field,
+              int index, java.lang.Object value) {
+        return super.setRepeatedField(field, index, value);
+      }
+      @java.lang.Override
+      public Builder addRepeatedField(
+              com.google.protobuf.Descriptors.FieldDescriptor field,
+              java.lang.Object value) {
+        return super.addRepeatedField(field, value);
+      }
+      @java.lang.Override
+      public Builder mergeFrom(com.google.protobuf.Message other) {
+        if (other instanceof emu.grasscutter.net.proto.EvtAvatarSitDownNotifyOuterClass.EvtAvatarSitDownNotify) {
+          return mergeFrom((emu.grasscutter.net.proto.EvtAvatarSitDownNotifyOuterClass.EvtAvatarSitDownNotify)other);
+        } else {
+          super.mergeFrom(other);
+          return this;
+        }
+      }
+
+      public Builder mergeFrom(emu.grasscutter.net.proto.EvtAvatarSitDownNotifyOuterClass.EvtAvatarSitDownNotify other) {
+        if (other == emu.grasscutter.net.proto.EvtAvatarSitDownNotifyOuterClass.EvtAvatarSitDownNotify.getDefaultInstance()) return this;
+        if (other.getEntityId() != 0) {
+          setEntityId(other.getEntityId());
+        }
+        if (other.hasPosition()) {
+          mergePosition(other.getPosition());
+        }
+        if (other.getChairId() != 0L) {
+          setChairId(other.getChairId());
+        }
+        this.mergeUnknownFields(other.unknownFields);
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final boolean isInitialized() {
+        return true;
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(
+              com.google.protobuf.CodedInputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws java.io.IOException {
+        emu.grasscutter.net.proto.EvtAvatarSitDownNotifyOuterClass.EvtAvatarSitDownNotify parsedMessage = null;
+        try {
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage = (emu.grasscutter.net.proto.EvtAvatarSitDownNotifyOuterClass.EvtAvatarSitDownNotify) e.getUnfinishedMessage();
+          throw e.unwrapIOException();
+        } finally {
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
+        return this;
+      }
+
+      private int entityId_ ;
+      /**
+       * <code>uint32 entity_id = 1;</code>
+       * @return The entityId.
+       */
+      @java.lang.Override
+      public int getEntityId() {
+        return entityId_;
+      }
+      /**
+       * <code>uint32 entity_id = 1;</code>
+       * @param value The entityId to set.
+       * @return This builder for chaining.
+       */
+      public Builder setEntityId(int value) {
+
+        entityId_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       * <code>uint32 entity_id = 1;</code>
+       * @return This builder for chaining.
+       */
+      public Builder clearEntityId() {
+
+        entityId_ = 0;
+        onChanged();
+        return this;
+      }
+
+      private emu.grasscutter.net.proto.VectorOuterClass.Vector position_;
+      private com.google.protobuf.SingleFieldBuilderV3<
+              emu.grasscutter.net.proto.VectorOuterClass.Vector, emu.grasscutter.net.proto.VectorOuterClass.Vector.Builder, emu.grasscutter.net.proto.VectorOuterClass.VectorOrBuilder> positionBuilder_;
+      /**
+       * <code>.Vector position = 2;</code>
+       * @return Whether the position field is set.
+       */
+      public boolean hasPosition() {
+        return positionBuilder_ != null || position_ != null;
+      }
+      /**
+       * <code>.Vector position = 2;</code>
+       * @return The position.
+       */
+      public emu.grasscutter.net.proto.VectorOuterClass.Vector getPosition() {
+        if (positionBuilder_ == null) {
+          return position_ == null ? emu.grasscutter.net.proto.VectorOuterClass.Vector.getDefaultInstance() : position_;
+        } else {
+          return positionBuilder_.getMessage();
+        }
+      }
+      /**
+       * <code>.Vector position = 2;</code>
+       */
+      public Builder setPosition(emu.grasscutter.net.proto.VectorOuterClass.Vector value) {
+        if (positionBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          position_ = value;
+          onChanged();
+        } else {
+          positionBuilder_.setMessage(value);
+        }
+
+        return this;
+      }
+      /**
+       * <code>.Vector position = 2;</code>
+       */
+      public Builder setPosition(
+              emu.grasscutter.net.proto.VectorOuterClass.Vector.Builder builderForValue) {
+        if (positionBuilder_ == null) {
+          position_ = builderForValue.build();
+          onChanged();
+        } else {
+          positionBuilder_.setMessage(builderForValue.build());
+        }
+
+        return this;
+      }
+      /**
+       * <code>.Vector position = 2;</code>
+       */
+      public Builder mergePosition(emu.grasscutter.net.proto.VectorOuterClass.Vector value) {
+        if (positionBuilder_ == null) {
+          if (position_ != null) {
+            position_ =
+                    emu.grasscutter.net.proto.VectorOuterClass.Vector.newBuilder(position_).mergeFrom(value).buildPartial();
+          } else {
+            position_ = value;
+          }
+          onChanged();
+        } else {
+          positionBuilder_.mergeFrom(value);
+        }
+
+        return this;
+      }
+      /**
+       * <code>.Vector position = 2;</code>
+       */
+      public Builder clearPosition() {
+        if (positionBuilder_ == null) {
+          position_ = null;
+          onChanged();
+        } else {
+          position_ = null;
+          positionBuilder_ = null;
+        }
+
+        return this;
+      }
+      /**
+       * <code>.Vector position = 2;</code>
+       */
+      public emu.grasscutter.net.proto.VectorOuterClass.Vector.Builder getPositionBuilder() {
+
+        onChanged();
+        return getPositionFieldBuilder().getBuilder();
+      }
+      /**
+       * <code>.Vector position = 2;</code>
+       */
+      public emu.grasscutter.net.proto.VectorOuterClass.VectorOrBuilder getPositionOrBuilder() {
+        if (positionBuilder_ != null) {
+          return positionBuilder_.getMessageOrBuilder();
+        } else {
+          return position_ == null ?
+                  emu.grasscutter.net.proto.VectorOuterClass.Vector.getDefaultInstance() : position_;
+        }
+      }
+      /**
+       * <code>.Vector position = 2;</code>
+       */
+      private com.google.protobuf.SingleFieldBuilderV3<
+              emu.grasscutter.net.proto.VectorOuterClass.Vector, emu.grasscutter.net.proto.VectorOuterClass.Vector.Builder, emu.grasscutter.net.proto.VectorOuterClass.VectorOrBuilder>
+      getPositionFieldBuilder() {
+        if (positionBuilder_ == null) {
+          positionBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
+                  emu.grasscutter.net.proto.VectorOuterClass.Vector, emu.grasscutter.net.proto.VectorOuterClass.Vector.Builder, emu.grasscutter.net.proto.VectorOuterClass.VectorOrBuilder>(
+                  getPosition(),
+                  getParentForChildren(),
+                  isClean());
+          position_ = null;
+        }
+        return positionBuilder_;
+      }
+
+      private long chairId_ ;
+      /**
+       * <code>uint64 chair_id = 3;</code>
+       * @return The chairId.
+       */
+      @java.lang.Override
+      public long getChairId() {
+        return chairId_;
+      }
+      /**
+       * <code>uint64 chair_id = 3;</code>
+       * @param value The chairId to set.
+       * @return This builder for chaining.
+       */
+      public Builder setChairId(long value) {
+
+        chairId_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       * <code>uint64 chair_id = 3;</code>
+       * @return This builder for chaining.
+       */
+      public Builder clearChairId() {
+
+        chairId_ = 0L;
+        onChanged();
+        return this;
+      }
+      @java.lang.Override
+      public final Builder setUnknownFields(
+              final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.setUnknownFields(unknownFields);
+      }
+
+      @java.lang.Override
+      public final Builder mergeUnknownFields(
+              final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.mergeUnknownFields(unknownFields);
+      }
+
+
+      // @@protoc_insertion_point(builder_scope:EvtAvatarSitDownNotify)
+    }
+
+    // @@protoc_insertion_point(class_scope:EvtAvatarSitDownNotify)
+    private static final emu.grasscutter.net.proto.EvtAvatarSitDownNotifyOuterClass.EvtAvatarSitDownNotify DEFAULT_INSTANCE;
+    static {
+      DEFAULT_INSTANCE = new emu.grasscutter.net.proto.EvtAvatarSitDownNotifyOuterClass.EvtAvatarSitDownNotify();
+    }
+
+    public static emu.grasscutter.net.proto.EvtAvatarSitDownNotifyOuterClass.EvtAvatarSitDownNotify getDefaultInstance() {
+      return DEFAULT_INSTANCE;
+    }
+
+    private static final com.google.protobuf.Parser<EvtAvatarSitDownNotify>
+            PARSER = new com.google.protobuf.AbstractParser<EvtAvatarSitDownNotify>() {
+      @java.lang.Override
+      public EvtAvatarSitDownNotify parsePartialFrom(
+              com.google.protobuf.CodedInputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+        return new EvtAvatarSitDownNotify(input, extensionRegistry);
+      }
+    };
+
+    public static com.google.protobuf.Parser<EvtAvatarSitDownNotify> parser() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Parser<EvtAvatarSitDownNotify> getParserForType() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public emu.grasscutter.net.proto.EvtAvatarSitDownNotifyOuterClass.EvtAvatarSitDownNotify getDefaultInstanceForType() {
+      return DEFAULT_INSTANCE;
+    }
+
+  }
+
+  private static final com.google.protobuf.Descriptors.Descriptor
+          internal_static_EvtAvatarSitDownNotify_descriptor;
+  private static final
+  com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internal_static_EvtAvatarSitDownNotify_fieldAccessorTable;
+
+  public static com.google.protobuf.Descriptors.FileDescriptor
+  getDescriptor() {
+    return descriptor;
+  }
+  private static  com.google.protobuf.Descriptors.FileDescriptor
+          descriptor;
+  static {
+    java.lang.String[] descriptorData = {
+            "\n\034EvtAvatarSitDownNotify.proto\032\014Vector.p" +
+                    "roto\"X\n\026EvtAvatarSitDownNotify\022\021\n\tentity" +
+                    "_id\030\001 \001(\r\022\031\n\010position\030\002 \001(\0132\007.Vector\022\020\n\010" +
+                    "chair_id\030\003 \001(\004B\033\n\031emu.grasscutter.net.pr" +
+                    "otob\006proto3"
+    };
+    descriptor = com.google.protobuf.Descriptors.FileDescriptor
+            .internalBuildGeneratedFileFrom(descriptorData,
+                    new com.google.protobuf.Descriptors.FileDescriptor[] {
+                            emu.grasscutter.net.proto.VectorOuterClass.getDescriptor(),
+                    });
+    internal_static_EvtAvatarSitDownNotify_descriptor =
+            getDescriptor().getMessageTypes().get(0);
+    internal_static_EvtAvatarSitDownNotify_fieldAccessorTable = new
+            com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_EvtAvatarSitDownNotify_descriptor,
+            new java.lang.String[] { "EntityId", "Position", "ChairId", });
+    emu.grasscutter.net.proto.VectorOuterClass.getDescriptor();
+  }
+
+  // @@protoc_insertion_point(outer_class_scope)
+}

src/main/java/emu/grasscutter/net/proto/SceneEntityDrownReqOuterClass.java

@@ -0,0 +1,538 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: SceneEntityDrownReq.proto
+
+package emu.grasscutter.net.proto;
+
+public final class SceneEntityDrownReqOuterClass {
+  private SceneEntityDrownReqOuterClass() {}
+  public static void registerAllExtensions(
+      com.google.protobuf.ExtensionRegistryLite registry) {
+  }
+
+  public static void registerAllExtensions(
+      com.google.protobuf.ExtensionRegistry registry) {
+    registerAllExtensions(
+        (com.google.protobuf.ExtensionRegistryLite) registry);
+  }
+  public interface SceneEntityDrownReqOrBuilder extends
+      // @@protoc_insertion_point(interface_extends:SceneEntityDrownReq)
+      com.google.protobuf.MessageOrBuilder {
+
+    /**
+     * <code>uint32 entity_id = 1;</code>
+     * @return The entityId.
+     */
+    int getEntityId();
+  }
+  /**
+   * Protobuf type {@code SceneEntityDrownReq}
+   */
+  public static final class SceneEntityDrownReq extends
+      com.google.protobuf.GeneratedMessageV3 implements
+      // @@protoc_insertion_point(message_implements:SceneEntityDrownReq)
+      SceneEntityDrownReqOrBuilder {
+  private static final long serialVersionUID = 0L;
+    // Use SceneEntityDrownReq.newBuilder() to construct.
+    private SceneEntityDrownReq(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+      super(builder);
+    }
+    private SceneEntityDrownReq() {
+    }
+
+    @java.lang.Override
+    @SuppressWarnings({"unused"})
+    protected java.lang.Object newInstance(
+        UnusedPrivateParameter unused) {
+      return new SceneEntityDrownReq();
+    }
+
+    @java.lang.Override
+    public final com.google.protobuf.UnknownFieldSet
+    getUnknownFields() {
+      return this.unknownFields;
+    }
+    private SceneEntityDrownReq(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      this();
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
+      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+          com.google.protobuf.UnknownFieldSet.newBuilder();
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8: {
+
+              entityId_ = input.readUInt32();
+              break;
+            }
+            default: {
+              if (!parseUnknownField(
+                  input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+          }
+        }
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.setUnfinishedMessage(this);
+      } catch (com.google.protobuf.UninitializedMessageException e) {
+        throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
+      } catch (java.io.IOException e) {
+        throw new com.google.protobuf.InvalidProtocolBufferException(
+            e).setUnfinishedMessage(this);
+      } finally {
+        this.unknownFields = unknownFields.build();
+        makeExtensionsImmutable();
+      }
+    }
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return emu.grasscutter.net.proto.SceneEntityDrownReqOuterClass.internal_static_SceneEntityDrownReq_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return emu.grasscutter.net.proto.SceneEntityDrownReqOuterClass.internal_static_SceneEntityDrownReq_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              emu.grasscutter.net.proto.SceneEntityDrownReqOuterClass.SceneEntityDrownReq.class, emu.grasscutter.net.proto.SceneEntityDrownReqOuterClass.SceneEntityDrownReq.Builder.class);
+    }
+
+    public static final int ENTITY_ID_FIELD_NUMBER = 1;
+    private int entityId_;
+    /**
+     * <code>uint32 entity_id = 1;</code>
+     * @return The entityId.
+     */
+    @java.lang.Override
+    public int getEntityId() {
+      return entityId_;
+    }
+
+    private byte memoizedIsInitialized = -1;
+    @java.lang.Override
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized == 1) return true;
+      if (isInitialized == 0) return false;
+
+      memoizedIsInitialized = 1;
+      return true;
+    }
+
+    @java.lang.Override
+    public void writeTo(com.google.protobuf.CodedOutputStream output)
+                        throws java.io.IOException {
+      if (entityId_ != 0) {
+        output.writeUInt32(1, entityId_);
+      }
+      unknownFields.writeTo(output);
+    }
+
+    @java.lang.Override
+    public int getSerializedSize() {
+      int size = memoizedSize;
+      if (size != -1) return size;
+
+      size = 0;
+      if (entityId_ != 0) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeUInt32Size(1, entityId_);
+      }
+      size += unknownFields.getSerializedSize();
+      memoizedSize = size;
+      return size;
+    }
+
+    @java.lang.Override
+    public boolean equals(final java.lang.Object obj) {
+      if (obj == this) {
+       return true;
+      }
+      if (!(obj instanceof emu.grasscutter.net.proto.SceneEntityDrownReqOuterClass.SceneEntityDrownReq)) {
+        return super.equals(obj);
+      }
+      emu.grasscutter.net.proto.SceneEntityDrownReqOuterClass.SceneEntityDrownReq other = (emu.grasscutter.net.proto.SceneEntityDrownReqOuterClass.SceneEntityDrownReq) obj;
+
+      if (getEntityId()
+          != other.getEntityId()) return false;
+      if (!unknownFields.equals(other.unknownFields)) return false;
+      return true;
+    }
+
+    @java.lang.Override
+    public int hashCode() {
+      if (memoizedHashCode != 0) {
+        return memoizedHashCode;
+      }
+      int hash = 41;
+      hash = (19 * hash) + getDescriptor().hashCode();
+      hash = (37 * hash) + ENTITY_ID_FIELD_NUMBER;
+      hash = (53 * hash) + getEntityId();
+      hash = (29 * hash) + unknownFields.hashCode();
+      memoizedHashCode = hash;
+      return hash;
+    }
+
+    public static emu.grasscutter.net.proto.SceneEntityDrownReqOuterClass.SceneEntityDrownReq parseFrom(
+        java.nio.ByteBuffer data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+    public static emu.grasscutter.net.proto.SceneEntityDrownReqOuterClass.SceneEntityDrownReq parseFrom(
+        java.nio.ByteBuffer data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+    public static emu.grasscutter.net.proto.SceneEntityDrownReqOuterClass.SceneEntityDrownReq parseFrom(
+        com.google.protobuf.ByteString data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+    public static emu.grasscutter.net.proto.SceneEntityDrownReqOuterClass.SceneEntityDrownReq parseFrom(
+        com.google.protobuf.ByteString data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+    public static emu.grasscutter.net.proto.SceneEntityDrownReqOuterClass.SceneEntityDrownReq parseFrom(byte[] data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+    public static emu.grasscutter.net.proto.SceneEntityDrownReqOuterClass.SceneEntityDrownReq parseFrom(
+        byte[] data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+    public static emu.grasscutter.net.proto.SceneEntityDrownReqOuterClass.SceneEntityDrownReq parseFrom(java.io.InputStream input)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+          .parseWithIOException(PARSER, input);
+    }
+    public static emu.grasscutter.net.proto.SceneEntityDrownReqOuterClass.SceneEntityDrownReq parseFrom(
+        java.io.InputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+          .parseWithIOException(PARSER, input, extensionRegistry);
+    }
+    public static emu.grasscutter.net.proto.SceneEntityDrownReqOuterClass.SceneEntityDrownReq parseDelimitedFrom(java.io.InputStream input)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+          .parseDelimitedWithIOException(PARSER, input);
+    }
+    public static emu.grasscutter.net.proto.SceneEntityDrownReqOuterClass.SceneEntityDrownReq parseDelimitedFrom(
+        java.io.InputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+          .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+    }
+    public static emu.grasscutter.net.proto.SceneEntityDrownReqOuterClass.SceneEntityDrownReq parseFrom(
+        com.google.protobuf.CodedInputStream input)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+          .parseWithIOException(PARSER, input);
+    }
+    public static emu.grasscutter.net.proto.SceneEntityDrownReqOuterClass.SceneEntityDrownReq parseFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+          .parseWithIOException(PARSER, input, extensionRegistry);
+    }
+
+    @java.lang.Override
+    public Builder newBuilderForType() { return newBuilder(); }
+    public static Builder newBuilder() {
+      return DEFAULT_INSTANCE.toBuilder();
+    }
+    public static Builder newBuilder(emu.grasscutter.net.proto.SceneEntityDrownReqOuterClass.SceneEntityDrownReq prototype) {
+      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+    }
+    @java.lang.Override
+    public Builder toBuilder() {
+      return this == DEFAULT_INSTANCE
+          ? new Builder() : new Builder().mergeFrom(this);
+    }
+
+    @java.lang.Override
+    protected Builder newBuilderForType(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      Builder builder = new Builder(parent);
+      return builder;
+    }
+    /**
+     * Protobuf type {@code SceneEntityDrownReq}
+     */
+    public static final class Builder extends
+        com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+        // @@protoc_insertion_point(builder_implements:SceneEntityDrownReq)
+        emu.grasscutter.net.proto.SceneEntityDrownReqOuterClass.SceneEntityDrownReqOrBuilder {
+      public static final com.google.protobuf.Descriptors.Descriptor
+          getDescriptor() {
+        return emu.grasscutter.net.proto.SceneEntityDrownReqOuterClass.internal_static_SceneEntityDrownReq_descriptor;
+      }
+
+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return emu.grasscutter.net.proto.SceneEntityDrownReqOuterClass.internal_static_SceneEntityDrownReq_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                emu.grasscutter.net.proto.SceneEntityDrownReqOuterClass.SceneEntityDrownReq.class, emu.grasscutter.net.proto.SceneEntityDrownReqOuterClass.SceneEntityDrownReq.Builder.class);
+      }
+
+      // Construct using emu.grasscutter.net.proto.SceneEntityDrownReqOuterClass.SceneEntityDrownReq.newBuilder()
+      private Builder() {
+        maybeForceBuilderInitialization();
+      }
+
+      private Builder(
+          com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+        super(parent);
+        maybeForceBuilderInitialization();
+      }
+      private void maybeForceBuilderInitialization() {
+        if (com.google.protobuf.GeneratedMessageV3
+                .alwaysUseFieldBuilders) {
+        }
+      }
+      @java.lang.Override
+      public Builder clear() {
+        super.clear();
+        entityId_ = 0;
+
+        return this;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Descriptors.Descriptor
+          getDescriptorForType() {
+        return emu.grasscutter.net.proto.SceneEntityDrownReqOuterClass.internal_static_SceneEntityDrownReq_descriptor;
+      }
+
+      @java.lang.Override
+      public emu.grasscutter.net.proto.SceneEntityDrownReqOuterClass.SceneEntityDrownReq getDefaultInstanceForType() {
+        return emu.grasscutter.net.proto.SceneEntityDrownReqOuterClass.SceneEntityDrownReq.getDefaultInstance();
+      }
+
+      @java.lang.Override
+      public emu.grasscutter.net.proto.SceneEntityDrownReqOuterClass.SceneEntityDrownReq build() {
+        emu.grasscutter.net.proto.SceneEntityDrownReqOuterClass.SceneEntityDrownReq result = buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(result);
+        }
+        return result;
+      }
+
+      @java.lang.Override
+      public emu.grasscutter.net.proto.SceneEntityDrownReqOuterClass.SceneEntityDrownReq buildPartial() {
+        emu.grasscutter.net.proto.SceneEntityDrownReqOuterClass.SceneEntityDrownReq result = new emu.grasscutter.net.proto.SceneEntityDrownReqOuterClass.SceneEntityDrownReq(this);
+        result.entityId_ = entityId_;
+        onBuilt();
+        return result;
+      }
+
+      @java.lang.Override
+      public Builder clone() {
+        return super.clone();
+      }
+      @java.lang.Override
+      public Builder setField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          java.lang.Object value) {
+        return super.setField(field, value);
+      }
+      @java.lang.Override
+      public Builder clearField(
+          com.google.protobuf.Descriptors.FieldDescriptor field) {
+        return super.clearField(field);
+      }
+      @java.lang.Override
+      public Builder clearOneof(
+          com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+        return super.clearOneof(oneof);
+      }
+      @java.lang.Override
+      public Builder setRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          int index, java.lang.Object value) {
+        return super.setRepeatedField(field, index, value);
+      }
+      @java.lang.Override
+      public Builder addRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          java.lang.Object value) {
+        return super.addRepeatedField(field, value);
+      }
+      @java.lang.Override
+      public Builder mergeFrom(com.google.protobuf.Message other) {
+        if (other instanceof emu.grasscutter.net.proto.SceneEntityDrownReqOuterClass.SceneEntityDrownReq) {
+          return mergeFrom((emu.grasscutter.net.proto.SceneEntityDrownReqOuterClass.SceneEntityDrownReq)other);
+        } else {
+          super.mergeFrom(other);
+          return this;
+        }
+      }
+
+      public Builder mergeFrom(emu.grasscutter.net.proto.SceneEntityDrownReqOuterClass.SceneEntityDrownReq other) {
+        if (other == emu.grasscutter.net.proto.SceneEntityDrownReqOuterClass.SceneEntityDrownReq.getDefaultInstance()) return this;
+        if (other.getEntityId() != 0) {
+          setEntityId(other.getEntityId());
+        }
+        this.mergeUnknownFields(other.unknownFields);
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final boolean isInitialized() {
+        return true;
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        emu.grasscutter.net.proto.SceneEntityDrownReqOuterClass.SceneEntityDrownReq parsedMessage = null;
+        try {
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage = (emu.grasscutter.net.proto.SceneEntityDrownReqOuterClass.SceneEntityDrownReq) e.getUnfinishedMessage();
+          throw e.unwrapIOException();
+        } finally {
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
+        return this;
+      }
+
+      private int entityId_ ;
+      /**
+       * <code>uint32 entity_id = 1;</code>
+       * @return The entityId.
+       */
+      @java.lang.Override
+      public int getEntityId() {
+        return entityId_;
+      }
+      /**
+       * <code>uint32 entity_id = 1;</code>
+       * @param value The entityId to set.
+       * @return This builder for chaining.
+       */
+      public Builder setEntityId(int value) {
+        
+        entityId_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       * <code>uint32 entity_id = 1;</code>
+       * @return This builder for chaining.
+       */
+      public Builder clearEntityId() {
+        
+        entityId_ = 0;
+        onChanged();
+        return this;
+      }
+      @java.lang.Override
+      public final Builder setUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.setUnknownFields(unknownFields);
+      }
+
+      @java.lang.Override
+      public final Builder mergeUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.mergeUnknownFields(unknownFields);
+      }
+
+
+      // @@protoc_insertion_point(builder_scope:SceneEntityDrownReq)
+    }
+
+    // @@protoc_insertion_point(class_scope:SceneEntityDrownReq)
+    private static final emu.grasscutter.net.proto.SceneEntityDrownReqOuterClass.SceneEntityDrownReq DEFAULT_INSTANCE;
+    static {
+      DEFAULT_INSTANCE = new emu.grasscutter.net.proto.SceneEntityDrownReqOuterClass.SceneEntityDrownReq();
+    }
+
+    public static emu.grasscutter.net.proto.SceneEntityDrownReqOuterClass.SceneEntityDrownReq getDefaultInstance() {
+      return DEFAULT_INSTANCE;
+    }
+
+    private static final com.google.protobuf.Parser<SceneEntityDrownReq>
+        PARSER = new com.google.protobuf.AbstractParser<SceneEntityDrownReq>() {
+      @java.lang.Override
+      public SceneEntityDrownReq parsePartialFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws com.google.protobuf.InvalidProtocolBufferException {
+        return new SceneEntityDrownReq(input, extensionRegistry);
+      }
+    };
+
+    public static com.google.protobuf.Parser<SceneEntityDrownReq> parser() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Parser<SceneEntityDrownReq> getParserForType() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public emu.grasscutter.net.proto.SceneEntityDrownReqOuterClass.SceneEntityDrownReq getDefaultInstanceForType() {
+      return DEFAULT_INSTANCE;
+    }
+
+  }
+
+  private static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_SceneEntityDrownReq_descriptor;
+  private static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_SceneEntityDrownReq_fieldAccessorTable;
+
+  public static com.google.protobuf.Descriptors.FileDescriptor
+      getDescriptor() {
+    return descriptor;
+  }
+  private static  com.google.protobuf.Descriptors.FileDescriptor
+      descriptor;
+  static {
+    java.lang.String[] descriptorData = {
+      "\n\031SceneEntityDrownReq.proto\"(\n\023SceneEnti" +
+      "tyDrownReq\022\021\n\tentity_id\030\001 \001(\rB\033\n\031emu.gra" +
+      "sscutter.net.protob\006proto3"
+    };
+    descriptor = com.google.protobuf.Descriptors.FileDescriptor
+      .internalBuildGeneratedFileFrom(descriptorData,
+        new com.google.protobuf.Descriptors.FileDescriptor[] {
+        });
+    internal_static_SceneEntityDrownReq_descriptor =
+      getDescriptor().getMessageTypes().get(0);
+    internal_static_SceneEntityDrownReq_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_SceneEntityDrownReq_descriptor,
+        new java.lang.String[] { "EntityId", });
+  }
+
+  // @@protoc_insertion_point(outer_class_scope)
+}

src/main/java/emu/grasscutter/net/proto/SceneEntityDrownRspOuterClass.java

@@ -0,0 +1,609 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: SceneEntityDrownRsp.proto
+
+package emu.grasscutter.net.proto;
+
+public final class SceneEntityDrownRspOuterClass {
+  private SceneEntityDrownRspOuterClass() {}
+  public static void registerAllExtensions(
+      com.google.protobuf.ExtensionRegistryLite registry) {
+  }
+
+  public static void registerAllExtensions(
+      com.google.protobuf.ExtensionRegistry registry) {
+    registerAllExtensions(
+        (com.google.protobuf.ExtensionRegistryLite) registry);
+  }
+  public interface SceneEntityDrownRspOrBuilder extends
+      // @@protoc_insertion_point(interface_extends:SceneEntityDrownRsp)
+      com.google.protobuf.MessageOrBuilder {
+
+    /**
+     * <code>int32 retcode = 1;</code>
+     * @return The retcode.
+     */
+    int getRetcode();
+
+    /**
+     * <code>uint32 entity_id = 2;</code>
+     * @return The entityId.
+     */
+    int getEntityId();
+  }
+  /**
+   * Protobuf type {@code SceneEntityDrownRsp}
+   */
+  public static final class SceneEntityDrownRsp extends
+      com.google.protobuf.GeneratedMessageV3 implements
+      // @@protoc_insertion_point(message_implements:SceneEntityDrownRsp)
+      SceneEntityDrownRspOrBuilder {
+  private static final long serialVersionUID = 0L;
+    // Use SceneEntityDrownRsp.newBuilder() to construct.
+    private SceneEntityDrownRsp(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+      super(builder);
+    }
+    public SceneEntityDrownRsp() {
+    }
+
+    @java.lang.Override
+    @SuppressWarnings({"unused"})
+    protected java.lang.Object newInstance(
+        UnusedPrivateParameter unused) {
+      return new SceneEntityDrownRsp();
+    }
+
+    @java.lang.Override
+    public final com.google.protobuf.UnknownFieldSet
+    getUnknownFields() {
+      return this.unknownFields;
+    }
+    private SceneEntityDrownRsp(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      this();
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
+      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+          com.google.protobuf.UnknownFieldSet.newBuilder();
+      try {
+        boolean done = false;
+        while (!done) {
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+        throw e.setUnfinishedMessage(this);
+      } catch (com.google.protobuf.UninitializedMessageException e) {
+        throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
+      } catch (java.io.IOException e) {
+        throw new com.google.protobuf.InvalidProtocolBufferException(
+            e).setUnfinishedMessage(this);
+      } finally {
+        this.unknownFields = unknownFields.build();
+        makeExtensionsImmutable();
+      }
+    }
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return emu.grasscutter.net.proto.SceneEntityDrownRspOuterClass.internal_static_SceneEntityDrownRsp_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return emu.grasscutter.net.proto.SceneEntityDrownRspOuterClass.internal_static_SceneEntityDrownRsp_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              emu.grasscutter.net.proto.SceneEntityDrownRspOuterClass.SceneEntityDrownRsp.class, emu.grasscutter.net.proto.SceneEntityDrownRspOuterClass.SceneEntityDrownRsp.Builder.class);
+    }
+
+    public static final int RETCODE_FIELD_NUMBER = 1;
+    private int retcode_;
+    /**
+     * <code>int32 retcode = 1;</code>
+     * @return The retcode.
+     */
+    @java.lang.Override
+    public int getRetcode() {
+      return retcode_;
+    }
+
+    public static final int ENTITY_ID_FIELD_NUMBER = 2;
+    private int entityId_;
+    /**
+     * <code>uint32 entity_id = 2;</code>
+     * @return The entityId.
+     */
+    @java.lang.Override
+    public int getEntityId() {
+      return entityId_;
+    }
+
+    private byte memoizedIsInitialized = -1;
+    @java.lang.Override
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized == 1) return true;
+      if (isInitialized == 0) return false;
+
+      memoizedIsInitialized = 1;
+      return true;
+    }
+
+    @java.lang.Override
+    public void writeTo(com.google.protobuf.CodedOutputStream output)
+                        throws java.io.IOException {
+      if (retcode_ != 0) {
+        output.writeInt32(1, retcode_);
+      }
+      if (entityId_ != 0) {
+        output.writeUInt32(2, entityId_);
+      }
+      unknownFields.writeTo(output);
+    }
+
+    @java.lang.Override
+    public int getSerializedSize() {
+      int size = memoizedSize;
+      if (size != -1) return size;
+
+      size = 0;
+      if (retcode_ != 0) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeInt32Size(1, retcode_);
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+      if (entityId_ != 0) {
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+          .computeUInt32Size(2, entityId_);
+      }
+      size += unknownFields.getSerializedSize();
+      memoizedSize = size;
+      return size;
+    }
+
+    @java.lang.Override
+    public boolean equals(final java.lang.Object obj) {
+      if (obj == this) {
+       return true;
+      }
+      if (!(obj instanceof emu.grasscutter.net.proto.SceneEntityDrownRspOuterClass.SceneEntityDrownRsp)) {
+        return super.equals(obj);
+      }
+      emu.grasscutter.net.proto.SceneEntityDrownRspOuterClass.SceneEntityDrownRsp other = (emu.grasscutter.net.proto.SceneEntityDrownRspOuterClass.SceneEntityDrownRsp) obj;
+
+      if (getRetcode()
+          != other.getRetcode()) return false;
+      if (getEntityId()
+          != other.getEntityId()) return false;
+      if (!unknownFields.equals(other.unknownFields)) return false;
+      return true;
+    }
+
+    @java.lang.Override
+    public int hashCode() {
+      if (memoizedHashCode != 0) {
+        return memoizedHashCode;
+      }
+      int hash = 41;
+      hash = (19 * hash) + getDescriptor().hashCode();
+      hash = (37 * hash) + RETCODE_FIELD_NUMBER;
+      hash = (53 * hash) + getRetcode();
+      hash = (37 * hash) + ENTITY_ID_FIELD_NUMBER;
+      hash = (53 * hash) + getEntityId();
+      hash = (29 * hash) + unknownFields.hashCode();
+      memoizedHashCode = hash;
+      return hash;
+    }
+
+    public static emu.grasscutter.net.proto.SceneEntityDrownRspOuterClass.SceneEntityDrownRsp parseFrom(
+        java.nio.ByteBuffer data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+    public static emu.grasscutter.net.proto.SceneEntityDrownRspOuterClass.SceneEntityDrownRsp parseFrom(
+        java.nio.ByteBuffer data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+    public static emu.grasscutter.net.proto.SceneEntityDrownRspOuterClass.SceneEntityDrownRsp parseFrom(
+        com.google.protobuf.ByteString data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+    public static emu.grasscutter.net.proto.SceneEntityDrownRspOuterClass.SceneEntityDrownRsp parseFrom(
+        com.google.protobuf.ByteString data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+    public static emu.grasscutter.net.proto.SceneEntityDrownRspOuterClass.SceneEntityDrownRsp parseFrom(byte[] data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+    public static emu.grasscutter.net.proto.SceneEntityDrownRspOuterClass.SceneEntityDrownRsp parseFrom(
+        byte[] data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+    public static emu.grasscutter.net.proto.SceneEntityDrownRspOuterClass.SceneEntityDrownRsp parseFrom(java.io.InputStream input)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+          .parseWithIOException(PARSER, input);
+    }
+    public static emu.grasscutter.net.proto.SceneEntityDrownRspOuterClass.SceneEntityDrownRsp parseFrom(
+        java.io.InputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+          .parseWithIOException(PARSER, input, extensionRegistry);
+    }
+    public static emu.grasscutter.net.proto.SceneEntityDrownRspOuterClass.SceneEntityDrownRsp parseDelimitedFrom(java.io.InputStream input)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+          .parseDelimitedWithIOException(PARSER, input);
+    }
+    public static emu.grasscutter.net.proto.SceneEntityDrownRspOuterClass.SceneEntityDrownRsp parseDelimitedFrom(
+        java.io.InputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+          .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+    }
+    public static emu.grasscutter.net.proto.SceneEntityDrownRspOuterClass.SceneEntityDrownRsp parseFrom(
+        com.google.protobuf.CodedInputStream input)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+          .parseWithIOException(PARSER, input);
+    }
+    public static emu.grasscutter.net.proto.SceneEntityDrownRspOuterClass.SceneEntityDrownRsp parseFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+          .parseWithIOException(PARSER, input, extensionRegistry);
+    }
+
+    @java.lang.Override
+    public Builder newBuilderForType() { return newBuilder(); }
+    public static Builder newBuilder() {
+      return DEFAULT_INSTANCE.toBuilder();
+    }
+    public static Builder newBuilder(emu.grasscutter.net.proto.SceneEntityDrownRspOuterClass.SceneEntityDrownRsp prototype) {
+      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+    }
+    @java.lang.Override
+    public Builder toBuilder() {
+      return this == DEFAULT_INSTANCE
+          ? new Builder() : new Builder().mergeFrom(this);
+    }
+
+    @java.lang.Override
+    protected Builder newBuilderForType(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      Builder builder = new Builder(parent);
+      return builder;
+    }
+    /**
+     * Protobuf type {@code SceneEntityDrownRsp}
+     */
+    public static final class Builder extends
+        com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+        // @@protoc_insertion_point(builder_implements:SceneEntityDrownRsp)
+        emu.grasscutter.net.proto.SceneEntityDrownRspOuterClass.SceneEntityDrownRspOrBuilder {
+      public static final com.google.protobuf.Descriptors.Descriptor
+          getDescriptor() {
+        return emu.grasscutter.net.proto.SceneEntityDrownRspOuterClass.internal_static_SceneEntityDrownRsp_descriptor;
+      }
+
+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return emu.grasscutter.net.proto.SceneEntityDrownRspOuterClass.internal_static_SceneEntityDrownRsp_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                emu.grasscutter.net.proto.SceneEntityDrownRspOuterClass.SceneEntityDrownRsp.class, emu.grasscutter.net.proto.SceneEntityDrownRspOuterClass.SceneEntityDrownRsp.Builder.class);
+      }
+
+      // Construct using emu.grasscutter.net.proto.SceneEntityDrownRspOuterClass.SceneEntityDrownRsp.newBuilder()
+      private Builder() {
+        maybeForceBuilderInitialization();
+      }
+
+      private Builder(
+          com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+        super(parent);
+        maybeForceBuilderInitialization();
+      }
+      private void maybeForceBuilderInitialization() {
+        if (com.google.protobuf.GeneratedMessageV3
+                .alwaysUseFieldBuilders) {
+        }
+      }
+      @java.lang.Override
+      public Builder clear() {
+        super.clear();
+        retcode_ = 0;
+
+        entityId_ = 0;
+
+        return this;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Descriptors.Descriptor
+          getDescriptorForType() {
+        return emu.grasscutter.net.proto.SceneEntityDrownRspOuterClass.internal_static_SceneEntityDrownRsp_descriptor;
+      }
+
+      @java.lang.Override
+      public emu.grasscutter.net.proto.SceneEntityDrownRspOuterClass.SceneEntityDrownRsp getDefaultInstanceForType() {
+        return emu.grasscutter.net.proto.SceneEntityDrownRspOuterClass.SceneEntityDrownRsp.getDefaultInstance();
+      }
+
+      @java.lang.Override
+      public emu.grasscutter.net.proto.SceneEntityDrownRspOuterClass.SceneEntityDrownRsp build() {
+        emu.grasscutter.net.proto.SceneEntityDrownRspOuterClass.SceneEntityDrownRsp result = buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(result);
+        }
+        return result;
+      }
+
+      @java.lang.Override
+      public emu.grasscutter.net.proto.SceneEntityDrownRspOuterClass.SceneEntityDrownRsp buildPartial() {
+        emu.grasscutter.net.proto.SceneEntityDrownRspOuterClass.SceneEntityDrownRsp result = new emu.grasscutter.net.proto.SceneEntityDrownRspOuterClass.SceneEntityDrownRsp(this);
+        result.retcode_ = retcode_;
+        result.entityId_ = entityId_;
+        onBuilt();
+        return result;
+      }
+
+      @java.lang.Override
+      public Builder clone() {
+        return super.clone();
+      }
+      @java.lang.Override
+      public Builder setField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          java.lang.Object value) {
+        return super.setField(field, value);
+      }
+      @java.lang.Override
+      public Builder clearField(
+          com.google.protobuf.Descriptors.FieldDescriptor field) {
+        return super.clearField(field);
+      }
+      @java.lang.Override
+      public Builder clearOneof(
+          com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+        return super.clearOneof(oneof);
+      }
+      @java.lang.Override
+      public Builder setRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          int index, java.lang.Object value) {
+        return super.setRepeatedField(field, index, value);
+      }
+      @java.lang.Override
+      public Builder addRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          java.lang.Object value) {
+        return super.addRepeatedField(field, value);
+      }
+      @java.lang.Override
+      public Builder mergeFrom(com.google.protobuf.Message other) {
+        if (other instanceof emu.grasscutter.net.proto.SceneEntityDrownRspOuterClass.SceneEntityDrownRsp) {
+          return mergeFrom((emu.grasscutter.net.proto.SceneEntityDrownRspOuterClass.SceneEntityDrownRsp)other);
+        } else {
+          super.mergeFrom(other);
+          return this;
+        }
+      }
+
+      public Builder mergeFrom(emu.grasscutter.net.proto.SceneEntityDrownRspOuterClass.SceneEntityDrownRsp other) {
+        if (other == emu.grasscutter.net.proto.SceneEntityDrownRspOuterClass.SceneEntityDrownRsp.getDefaultInstance()) return this;
+        if (other.getRetcode() != 0) {
+          setRetcode(other.getRetcode());
+        }
+        if (other.getEntityId() != 0) {
+          setEntityId(other.getEntityId());
+        }
+        this.mergeUnknownFields(other.unknownFields);
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final boolean isInitialized() {
+        return true;
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        emu.grasscutter.net.proto.SceneEntityDrownRspOuterClass.SceneEntityDrownRsp parsedMessage = null;
+        try {
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage = (emu.grasscutter.net.proto.SceneEntityDrownRspOuterClass.SceneEntityDrownRsp) e.getUnfinishedMessage();
+          throw e.unwrapIOException();
+        } finally {
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
+        return this;
+      }
+
+      private int retcode_ ;
+      /**
+       * <code>int32 retcode = 1;</code>
+       * @return The retcode.
+       */
+      @java.lang.Override
+      public int getRetcode() {
+        return retcode_;
+      }
+      /**
+       * <code>int32 retcode = 1;</code>
+       * @param value The retcode to set.
+       * @return This builder for chaining.
+       */
+      public Builder setRetcode(int value) {
+        
+        retcode_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       * <code>int32 retcode = 1;</code>
+       * @return This builder for chaining.
+       */
+      public Builder clearRetcode() {
+        
+        retcode_ = 0;
+        onChanged();
+        return this;
+      }
+
+      private int entityId_ ;
+      /**
+       * <code>uint32 entity_id = 2;</code>
+       * @return The entityId.
+       */
+      @java.lang.Override
+      public int getEntityId() {
+        return entityId_;
+      }
+      /**
+       * <code>uint32 entity_id = 2;</code>
+       * @param value The entityId to set.
+       * @return This builder for chaining.
+       */
+      public Builder setEntityId(int value) {
+        
+        entityId_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       * <code>uint32 entity_id = 2;</code>
+       * @return This builder for chaining.
+       */
+      public Builder clearEntityId() {
+        
+        entityId_ = 0;
+        onChanged();
+        return this;
+      }
+      @java.lang.Override
+      public final Builder setUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.setUnknownFields(unknownFields);
+      }
+
+      @java.lang.Override
+      public final Builder mergeUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.mergeUnknownFields(unknownFields);
+      }
+
+
+      // @@protoc_insertion_point(builder_scope:SceneEntityDrownRsp)
+    }
+
+    // @@protoc_insertion_point(class_scope:SceneEntityDrownRsp)
+    private static final emu.grasscutter.net.proto.SceneEntityDrownRspOuterClass.SceneEntityDrownRsp DEFAULT_INSTANCE;
+    static {
+      DEFAULT_INSTANCE = new emu.grasscutter.net.proto.SceneEntityDrownRspOuterClass.SceneEntityDrownRsp();
+    }
+
+    public static emu.grasscutter.net.proto.SceneEntityDrownRspOuterClass.SceneEntityDrownRsp getDefaultInstance() {
+      return DEFAULT_INSTANCE;
+    }
+
+    private static final com.google.protobuf.Parser<SceneEntityDrownRsp>
+        PARSER = new com.google.protobuf.AbstractParser<SceneEntityDrownRsp>() {
+      @java.lang.Override
+      public SceneEntityDrownRsp parsePartialFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws com.google.protobuf.InvalidProtocolBufferException {
+        return new SceneEntityDrownRsp(input, extensionRegistry);
+      }
+    };
+
+    public static com.google.protobuf.Parser<SceneEntityDrownRsp> parser() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Parser<SceneEntityDrownRsp> getParserForType() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public emu.grasscutter.net.proto.SceneEntityDrownRspOuterClass.SceneEntityDrownRsp getDefaultInstanceForType() {
+      return DEFAULT_INSTANCE;
+    }
+
+  }
+
+  private static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_SceneEntityDrownRsp_descriptor;
+  private static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_SceneEntityDrownRsp_fieldAccessorTable;
+
+  public static com.google.protobuf.Descriptors.FileDescriptor
+      getDescriptor() {
+    return descriptor;
+  }
+  private static  com.google.protobuf.Descriptors.FileDescriptor
+      descriptor;
+  static {
+    java.lang.String[] descriptorData = {
+      "\n\031SceneEntityDrownRsp.proto\"9\n\023SceneEnti" +
+      "tyDrownRsp\022\017\n\007retcode\030\001 \001(\005\022\021\n\tentity_id" +
+      "\030\002 \001(\rB\033\n\031emu.grasscutter.net.protob\006pro" +
+      "to3"
+    };
+    descriptor = com.google.protobuf.Descriptors.FileDescriptor
+      .internalBuildGeneratedFileFrom(descriptorData,
+        new com.google.protobuf.Descriptors.FileDescriptor[] {
+        });
+    internal_static_SceneEntityDrownRsp_descriptor =
+      getDescriptor().getMessageTypes().get(0);
+    internal_static_SceneEntityDrownRsp_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_SceneEntityDrownRsp_descriptor,
+        new java.lang.String[] { "Retcode", "EntityId", });
+  }
+
+  // @@protoc_insertion_point(outer_class_scope)
+}

src/main/java/emu/grasscutter/net/proto/SetPlayerBirthdayReqOuterClass.java

@@ -0,0 +1,674 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: proto/SetPlayerBirthdayReq.proto
+
+package emu.grasscutter.net.proto;
+
+public final class SetPlayerBirthdayReqOuterClass {
+  private SetPlayerBirthdayReqOuterClass() {}
+  public static void registerAllExtensions(
+      com.google.protobuf.ExtensionRegistryLite registry) {
+  }
+
+  public static void registerAllExtensions(
+      com.google.protobuf.ExtensionRegistry registry) {
+    registerAllExtensions(
+        (com.google.protobuf.ExtensionRegistryLite) registry);
+  }
+  public interface SetPlayerBirthdayReqOrBuilder extends
+      // @@protoc_insertion_point(interface_extends:SetPlayerBirthdayReq)
+      com.google.protobuf.MessageOrBuilder {
+
+    /**
+     * <code>.Birthday birth = 1;</code>
+     * @return Whether the birth field is set.
+     */
+    boolean hasBirth();
+    /**
+     * <code>.Birthday birth = 1;</code>
+     * @return The birth.
+     */
+    emu.grasscutter.net.proto.BirthdayOuterClass.Birthday getBirth();
+    /**
+     * <code>.Birthday birth = 1;</code>
+     */
+    emu.grasscutter.net.proto.BirthdayOuterClass.BirthdayOrBuilder getBirthOrBuilder();
+  }
+  /**
+   * Protobuf type {@code SetPlayerBirthdayReq}
+   */
+  public static final class SetPlayerBirthdayReq extends
+      com.google.protobuf.GeneratedMessageV3 implements
+      // @@protoc_insertion_point(message_implements:SetPlayerBirthdayReq)
+      SetPlayerBirthdayReqOrBuilder {
+  private static final long serialVersionUID = 0L;
+    // Use SetPlayerBirthdayReq.newBuilder() to construct.
+    private SetPlayerBirthdayReq(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+      super(builder);
+    }
+    private SetPlayerBirthdayReq() {
+    }
+
+    @java.lang.Override
+    @SuppressWarnings({"unused"})
+    protected java.lang.Object newInstance(
+        UnusedPrivateParameter unused) {
+      return new SetPlayerBirthdayReq();
+    }
+
+    @java.lang.Override
+    public final com.google.protobuf.UnknownFieldSet
+    getUnknownFields() {
+      return this.unknownFields;
+    }
+    private SetPlayerBirthdayReq(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      this();
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
+      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+          com.google.protobuf.UnknownFieldSet.newBuilder();
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10: {
+              emu.grasscutter.net.proto.BirthdayOuterClass.Birthday.Builder subBuilder = null;
+              if (birth_ != null) {
+                subBuilder = birth_.toBuilder();
+              }
+              birth_ = input.readMessage(emu.grasscutter.net.proto.BirthdayOuterClass.Birthday.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(birth_);
+                birth_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+            default: {
+              if (!parseUnknownField(
+                  input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+          }
+        }
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.setUnfinishedMessage(this);
+      } catch (com.google.protobuf.UninitializedMessageException e) {
+        throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
+      } catch (java.io.IOException e) {
+        throw new com.google.protobuf.InvalidProtocolBufferException(
+            e).setUnfinishedMessage(this);
+      } finally {
+        this.unknownFields = unknownFields.build();
+        makeExtensionsImmutable();
+      }
+    }
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return emu.grasscutter.net.proto.SetPlayerBirthdayReqOuterClass.internal_static_SetPlayerBirthdayReq_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return emu.grasscutter.net.proto.SetPlayerBirthdayReqOuterClass.internal_static_SetPlayerBirthdayReq_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              emu.grasscutter.net.proto.SetPlayerBirthdayReqOuterClass.SetPlayerBirthdayReq.class, emu.grasscutter.net.proto.SetPlayerBirthdayReqOuterClass.SetPlayerBirthdayReq.Builder.class);
+    }
+
+    public static final int BIRTH_FIELD_NUMBER = 1;
+    private emu.grasscutter.net.proto.BirthdayOuterClass.Birthday birth_;
+    /**
+     * <code>.Birthday birth = 1;</code>
+     * @return Whether the birth field is set.
+     */
+    @java.lang.Override
+    public boolean hasBirth() {
+      return birth_ != null;
+    }
+    /**
+     * <code>.Birthday birth = 1;</code>
+     * @return The birth.
+     */
+    @java.lang.Override
+    public emu.grasscutter.net.proto.BirthdayOuterClass.Birthday getBirth() {
+      return birth_ == null ? emu.grasscutter.net.proto.BirthdayOuterClass.Birthday.getDefaultInstance() : birth_;
+    }
+    /**
+     * <code>.Birthday birth = 1;</code>
+     */
+    @java.lang.Override
+    public emu.grasscutter.net.proto.BirthdayOuterClass.BirthdayOrBuilder getBirthOrBuilder() {
+      return getBirth();
+    }
+
+    private byte memoizedIsInitialized = -1;
+    @java.lang.Override
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized == 1) return true;
+      if (isInitialized == 0) return false;
+
+      memoizedIsInitialized = 1;
+      return true;
+    }
+
+    @java.lang.Override
+    public void writeTo(com.google.protobuf.CodedOutputStream output)
+                        throws java.io.IOException {
+      if (birth_ != null) {
+        output.writeMessage(1, getBirth());
+      }
+      unknownFields.writeTo(output);
+    }
+
+    @java.lang.Override
+    public int getSerializedSize() {
+      int size = memoizedSize;
+      if (size != -1) return size;
+
+      size = 0;
+      if (birth_ != null) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeMessageSize(1, getBirth());
+      }
+      size += unknownFields.getSerializedSize();
+      memoizedSize = size;
+      return size;
+    }
+
+    @java.lang.Override
+    public boolean equals(final java.lang.Object obj) {
+      if (obj == this) {
+       return true;
+      }
+      if (!(obj instanceof emu.grasscutter.net.proto.SetPlayerBirthdayReqOuterClass.SetPlayerBirthdayReq)) {
+        return super.equals(obj);
+      }
+      emu.grasscutter.net.proto.SetPlayerBirthdayReqOuterClass.SetPlayerBirthdayReq other = (emu.grasscutter.net.proto.SetPlayerBirthdayReqOuterClass.SetPlayerBirthdayReq) obj;
+
+      if (hasBirth() != other.hasBirth()) return false;
+      if (hasBirth()) {
+        if (!getBirth()
+            .equals(other.getBirth())) return false;
+      }
+      if (!unknownFields.equals(other.unknownFields)) return false;
+      return true;
+    }
+
+    @java.lang.Override
+    public int hashCode() {
+      if (memoizedHashCode != 0) {
+        return memoizedHashCode;
+      }
+      int hash = 41;
+      hash = (19 * hash) + getDescriptor().hashCode();
+      if (hasBirth()) {
+        hash = (37 * hash) + BIRTH_FIELD_NUMBER;
+        hash = (53 * hash) + getBirth().hashCode();
+      }
+      hash = (29 * hash) + unknownFields.hashCode();
+      memoizedHashCode = hash;
+      return hash;
+    }
+
+    public static emu.grasscutter.net.proto.SetPlayerBirthdayReqOuterClass.SetPlayerBirthdayReq parseFrom(
+        java.nio.ByteBuffer data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+    public static emu.grasscutter.net.proto.SetPlayerBirthdayReqOuterClass.SetPlayerBirthdayReq parseFrom(
+        java.nio.ByteBuffer data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+    public static emu.grasscutter.net.proto.SetPlayerBirthdayReqOuterClass.SetPlayerBirthdayReq parseFrom(
+        com.google.protobuf.ByteString data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+    public static emu.grasscutter.net.proto.SetPlayerBirthdayReqOuterClass.SetPlayerBirthdayReq parseFrom(
+        com.google.protobuf.ByteString data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+    public static emu.grasscutter.net.proto.SetPlayerBirthdayReqOuterClass.SetPlayerBirthdayReq parseFrom(byte[] data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+    public static emu.grasscutter.net.proto.SetPlayerBirthdayReqOuterClass.SetPlayerBirthdayReq parseFrom(
+        byte[] data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+    public static emu.grasscutter.net.proto.SetPlayerBirthdayReqOuterClass.SetPlayerBirthdayReq parseFrom(java.io.InputStream input)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+          .parseWithIOException(PARSER, input);
+    }
+    public static emu.grasscutter.net.proto.SetPlayerBirthdayReqOuterClass.SetPlayerBirthdayReq parseFrom(
+        java.io.InputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+          .parseWithIOException(PARSER, input, extensionRegistry);
+    }
+    public static emu.grasscutter.net.proto.SetPlayerBirthdayReqOuterClass.SetPlayerBirthdayReq parseDelimitedFrom(java.io.InputStream input)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+          .parseDelimitedWithIOException(PARSER, input);
+    }
+    public static emu.grasscutter.net.proto.SetPlayerBirthdayReqOuterClass.SetPlayerBirthdayReq parseDelimitedFrom(
+        java.io.InputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+          .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+    }
+    public static emu.grasscutter.net.proto.SetPlayerBirthdayReqOuterClass.SetPlayerBirthdayReq parseFrom(
+        com.google.protobuf.CodedInputStream input)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+          .parseWithIOException(PARSER, input);
+    }
+    public static emu.grasscutter.net.proto.SetPlayerBirthdayReqOuterClass.SetPlayerBirthdayReq parseFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+          .parseWithIOException(PARSER, input, extensionRegistry);
+    }
+
+    @java.lang.Override
+    public Builder newBuilderForType() { return newBuilder(); }
+    public static Builder newBuilder() {
+      return DEFAULT_INSTANCE.toBuilder();
+    }
+    public static Builder newBuilder(emu.grasscutter.net.proto.SetPlayerBirthdayReqOuterClass.SetPlayerBirthdayReq prototype) {
+      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+    }
+    @java.lang.Override
+    public Builder toBuilder() {
+      return this == DEFAULT_INSTANCE
+          ? new Builder() : new Builder().mergeFrom(this);
+    }
+
+    @java.lang.Override
+    protected Builder newBuilderForType(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      Builder builder = new Builder(parent);
+      return builder;
+    }
+    /**
+     * Protobuf type {@code SetPlayerBirthdayReq}
+     */
+    public static final class Builder extends
+        com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+        // @@protoc_insertion_point(builder_implements:SetPlayerBirthdayReq)
+        emu.grasscutter.net.proto.SetPlayerBirthdayReqOuterClass.SetPlayerBirthdayReqOrBuilder {
+      public static final com.google.protobuf.Descriptors.Descriptor
+          getDescriptor() {
+        return emu.grasscutter.net.proto.SetPlayerBirthdayReqOuterClass.internal_static_SetPlayerBirthdayReq_descriptor;
+      }
+
+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return emu.grasscutter.net.proto.SetPlayerBirthdayReqOuterClass.internal_static_SetPlayerBirthdayReq_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                emu.grasscutter.net.proto.SetPlayerBirthdayReqOuterClass.SetPlayerBirthdayReq.class, emu.grasscutter.net.proto.SetPlayerBirthdayReqOuterClass.SetPlayerBirthdayReq.Builder.class);
+      }
+
+      // Construct using emu.grasscutter.net.proto.SetPlayerBirthdayReqOuterClass.SetPlayerBirthdayReq.newBuilder()
+      private Builder() {
+        maybeForceBuilderInitialization();
+      }
+
+      private Builder(
+          com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+        super(parent);
+        maybeForceBuilderInitialization();
+      }
+      private void maybeForceBuilderInitialization() {
+        if (com.google.protobuf.GeneratedMessageV3
+                .alwaysUseFieldBuilders) {
+        }
+      }
+      @java.lang.Override
+      public Builder clear() {
+        super.clear();
+        if (birthBuilder_ == null) {
+          birth_ = null;
+        } else {
+          birth_ = null;
+          birthBuilder_ = null;
+        }
+        return this;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Descriptors.Descriptor
+          getDescriptorForType() {
+        return emu.grasscutter.net.proto.SetPlayerBirthdayReqOuterClass.internal_static_SetPlayerBirthdayReq_descriptor;
+      }
+
+      @java.lang.Override
+      public emu.grasscutter.net.proto.SetPlayerBirthdayReqOuterClass.SetPlayerBirthdayReq getDefaultInstanceForType() {
+        return emu.grasscutter.net.proto.SetPlayerBirthdayReqOuterClass.SetPlayerBirthdayReq.getDefaultInstance();
+      }
+
+      @java.lang.Override
+      public emu.grasscutter.net.proto.SetPlayerBirthdayReqOuterClass.SetPlayerBirthdayReq build() {
+        emu.grasscutter.net.proto.SetPlayerBirthdayReqOuterClass.SetPlayerBirthdayReq result = buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(result);
+        }
+        return result;
+      }
+
+      @java.lang.Override
+      public emu.grasscutter.net.proto.SetPlayerBirthdayReqOuterClass.SetPlayerBirthdayReq buildPartial() {
+        emu.grasscutter.net.proto.SetPlayerBirthdayReqOuterClass.SetPlayerBirthdayReq result = new emu.grasscutter.net.proto.SetPlayerBirthdayReqOuterClass.SetPlayerBirthdayReq(this);
+        if (birthBuilder_ == null) {
+          result.birth_ = birth_;
+        } else {
+          result.birth_ = birthBuilder_.build();
+        }
+        onBuilt();
+        return result;
+      }
+
+      @java.lang.Override
+      public Builder clone() {
+        return super.clone();
+      }
+      @java.lang.Override
+      public Builder setField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          java.lang.Object value) {
+        return super.setField(field, value);
+      }
+      @java.lang.Override
+      public Builder clearField(
+          com.google.protobuf.Descriptors.FieldDescriptor field) {
+        return super.clearField(field);
+      }
+      @java.lang.Override
+      public Builder clearOneof(
+          com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+        return super.clearOneof(oneof);
+      }
+      @java.lang.Override
+      public Builder setRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          int index, java.lang.Object value) {
+        return super.setRepeatedField(field, index, value);
+      }
+      @java.lang.Override
+      public Builder addRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          java.lang.Object value) {
+        return super.addRepeatedField(field, value);
+      }
+      @java.lang.Override
+      public Builder mergeFrom(com.google.protobuf.Message other) {
+        if (other instanceof emu.grasscutter.net.proto.SetPlayerBirthdayReqOuterClass.SetPlayerBirthdayReq) {
+          return mergeFrom((emu.grasscutter.net.proto.SetPlayerBirthdayReqOuterClass.SetPlayerBirthdayReq)other);
+        } else {
+          super.mergeFrom(other);
+          return this;
+        }
+      }
+
+      public Builder mergeFrom(emu.grasscutter.net.proto.SetPlayerBirthdayReqOuterClass.SetPlayerBirthdayReq other) {
+        if (other == emu.grasscutter.net.proto.SetPlayerBirthdayReqOuterClass.SetPlayerBirthdayReq.getDefaultInstance()) return this;
+        if (other.hasBirth()) {
+          mergeBirth(other.getBirth());
+        }
+        this.mergeUnknownFields(other.unknownFields);
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final boolean isInitialized() {
+        return true;
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        emu.grasscutter.net.proto.SetPlayerBirthdayReqOuterClass.SetPlayerBirthdayReq parsedMessage = null;
+        try {
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage = (emu.grasscutter.net.proto.SetPlayerBirthdayReqOuterClass.SetPlayerBirthdayReq) e.getUnfinishedMessage();
+          throw e.unwrapIOException();
+        } finally {
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
+        return this;
+      }
+
+      private emu.grasscutter.net.proto.BirthdayOuterClass.Birthday birth_;
+      private com.google.protobuf.SingleFieldBuilderV3<
+          emu.grasscutter.net.proto.BirthdayOuterClass.Birthday, emu.grasscutter.net.proto.BirthdayOuterClass.Birthday.Builder, emu.grasscutter.net.proto.BirthdayOuterClass.BirthdayOrBuilder> birthBuilder_;
+      /**
+       * <code>.Birthday birth = 1;</code>
+       * @return Whether the birth field is set.
+       */
+      public boolean hasBirth() {
+        return birthBuilder_ != null || birth_ != null;
+      }
+      /**
+       * <code>.Birthday birth = 1;</code>
+       * @return The birth.
+       */
+      public emu.grasscutter.net.proto.BirthdayOuterClass.Birthday getBirth() {
+        if (birthBuilder_ == null) {
+          return birth_ == null ? emu.grasscutter.net.proto.BirthdayOuterClass.Birthday.getDefaultInstance() : birth_;
+        } else {
+          return birthBuilder_.getMessage();
+        }
+      }
+      /**
+       * <code>.Birthday birth = 1;</code>
+       */
+      public Builder setBirth(emu.grasscutter.net.proto.BirthdayOuterClass.Birthday value) {
+        if (birthBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          birth_ = value;
+          onChanged();
+        } else {
+          birthBuilder_.setMessage(value);
+        }
+
+        return this;
+      }
+      /**
+       * <code>.Birthday birth = 1;</code>
+       */
+      public Builder setBirth(
+          emu.grasscutter.net.proto.BirthdayOuterClass.Birthday.Builder builderForValue) {
+        if (birthBuilder_ == null) {
+          birth_ = builderForValue.build();
+          onChanged();
+        } else {
+          birthBuilder_.setMessage(builderForValue.build());
+        }
+
+        return this;
+      }
+      /**
+       * <code>.Birthday birth = 1;</code>
+       */
+      public Builder mergeBirth(emu.grasscutter.net.proto.BirthdayOuterClass.Birthday value) {
+        if (birthBuilder_ == null) {
+          if (birth_ != null) {
+            birth_ =
+              emu.grasscutter.net.proto.BirthdayOuterClass.Birthday.newBuilder(birth_).mergeFrom(value).buildPartial();
+          } else {
+            birth_ = value;
+          }
+          onChanged();
+        } else {
+          birthBuilder_.mergeFrom(value);
+        }
+
+        return this;
+      }
+      /**
+       * <code>.Birthday birth = 1;</code>
+       */
+      public Builder clearBirth() {
+        if (birthBuilder_ == null) {
+          birth_ = null;
+          onChanged();
+        } else {
+          birth_ = null;
+          birthBuilder_ = null;
+        }
+
+        return this;
+      }
+      /**
+       * <code>.Birthday birth = 1;</code>
+       */
+      public emu.grasscutter.net.proto.BirthdayOuterClass.Birthday.Builder getBirthBuilder() {
+        
+        onChanged();
+        return getBirthFieldBuilder().getBuilder();
+      }
+      /**
+       * <code>.Birthday birth = 1;</code>
+       */
+      public emu.grasscutter.net.proto.BirthdayOuterClass.BirthdayOrBuilder getBirthOrBuilder() {
+        if (birthBuilder_ != null) {
+          return birthBuilder_.getMessageOrBuilder();
+        } else {
+          return birth_ == null ?
+              emu.grasscutter.net.proto.BirthdayOuterClass.Birthday.getDefaultInstance() : birth_;
+        }
+      }
+      /**
+       * <code>.Birthday birth = 1;</code>
+       */
+      private com.google.protobuf.SingleFieldBuilderV3<
+          emu.grasscutter.net.proto.BirthdayOuterClass.Birthday, emu.grasscutter.net.proto.BirthdayOuterClass.Birthday.Builder, emu.grasscutter.net.proto.BirthdayOuterClass.BirthdayOrBuilder> 
+          getBirthFieldBuilder() {
+        if (birthBuilder_ == null) {
+          birthBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
+              emu.grasscutter.net.proto.BirthdayOuterClass.Birthday, emu.grasscutter.net.proto.BirthdayOuterClass.Birthday.Builder, emu.grasscutter.net.proto.BirthdayOuterClass.BirthdayOrBuilder>(
+                  getBirth(),
+                  getParentForChildren(),
+                  isClean());
+          birth_ = null;
+        }
+        return birthBuilder_;
+      }
+      @java.lang.Override
+      public final Builder setUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.setUnknownFields(unknownFields);
+      }
+
+      @java.lang.Override
+      public final Builder mergeUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.mergeUnknownFields(unknownFields);
+      }
+
+
+      // @@protoc_insertion_point(builder_scope:SetPlayerBirthdayReq)
+    }
+
+    // @@protoc_insertion_point(class_scope:SetPlayerBirthdayReq)
+    private static final emu.grasscutter.net.proto.SetPlayerBirthdayReqOuterClass.SetPlayerBirthdayReq DEFAULT_INSTANCE;
+    static {
+      DEFAULT_INSTANCE = new emu.grasscutter.net.proto.SetPlayerBirthdayReqOuterClass.SetPlayerBirthdayReq();
+    }
+
+    public static emu.grasscutter.net.proto.SetPlayerBirthdayReqOuterClass.SetPlayerBirthdayReq getDefaultInstance() {
+      return DEFAULT_INSTANCE;
+    }
+
+    private static final com.google.protobuf.Parser<SetPlayerBirthdayReq>
+        PARSER = new com.google.protobuf.AbstractParser<SetPlayerBirthdayReq>() {
+      @java.lang.Override
+      public SetPlayerBirthdayReq parsePartialFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws com.google.protobuf.InvalidProtocolBufferException {
+        return new SetPlayerBirthdayReq(input, extensionRegistry);
+      }
+    };
+
+    public static com.google.protobuf.Parser<SetPlayerBirthdayReq> parser() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Parser<SetPlayerBirthdayReq> getParserForType() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public emu.grasscutter.net.proto.SetPlayerBirthdayReqOuterClass.SetPlayerBirthdayReq getDefaultInstanceForType() {
+      return DEFAULT_INSTANCE;
+    }
+
+  }
+
+  private static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_SetPlayerBirthdayReq_descriptor;
+  private static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_SetPlayerBirthdayReq_fieldAccessorTable;
+
+  public static com.google.protobuf.Descriptors.FileDescriptor
+      getDescriptor() {
+    return descriptor;
+  }
+  private static  com.google.protobuf.Descriptors.FileDescriptor
+      descriptor;
+  static {
+    java.lang.String[] descriptorData = {
+      "\n proto/SetPlayerBirthdayReq.proto\032\024prot" +
+      "o/Birthday.proto\"0\n\024SetPlayerBirthdayReq" +
+      "\022\030\n\005birth\030\001 \001(\0132\t.BirthdayB\033\n\031emu.grassc" +
+      "utter.net.protob\006proto3"
+    };
+    descriptor = com.google.protobuf.Descriptors.FileDescriptor
+      .internalBuildGeneratedFileFrom(descriptorData,
+        new com.google.protobuf.Descriptors.FileDescriptor[] {
+          emu.grasscutter.net.proto.BirthdayOuterClass.getDescriptor(),
+        });
+    internal_static_SetPlayerBirthdayReq_descriptor =
+      getDescriptor().getMessageTypes().get(0);
+    internal_static_SetPlayerBirthdayReq_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_SetPlayerBirthdayReq_descriptor,
+        new java.lang.String[] { "Birth", });
+    emu.grasscutter.net.proto.BirthdayOuterClass.getDescriptor();
+  }
+
+  // @@protoc_insertion_point(outer_class_scope)
+}

src/main/java/emu/grasscutter/net/proto/SetPlayerBirthdayRspOuterClass.java

@@ -0,0 +1,674 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: proto/SetPlayerBirthdayRsp.proto
+
+package emu.grasscutter.net.proto;
+
+public final class SetPlayerBirthdayRspOuterClass {
+  private SetPlayerBirthdayRspOuterClass() {}
+  public static void registerAllExtensions(
+      com.google.protobuf.ExtensionRegistryLite registry) {
+  }
+
+  public static void registerAllExtensions(
+      com.google.protobuf.ExtensionRegistry registry) {
+    registerAllExtensions(
+        (com.google.protobuf.ExtensionRegistryLite) registry);
+  }
+  public interface SetPlayerBirthdayRspOrBuilder extends
+      // @@protoc_insertion_point(interface_extends:SetPlayerBirthdayRsp)
+      com.google.protobuf.MessageOrBuilder {
+
+    /**
+     * <code>.Birthday birth = 1;</code>
+     * @return Whether the birth field is set.
+     */
+    boolean hasBirth();
+    /**
+     * <code>.Birthday birth = 1;</code>
+     * @return The birth.
+     */
+    emu.grasscutter.net.proto.BirthdayOuterClass.Birthday getBirth();
+    /**
+     * <code>.Birthday birth = 1;</code>
+     */
+    emu.grasscutter.net.proto.BirthdayOuterClass.BirthdayOrBuilder getBirthOrBuilder();
+  }
+  /**
+   * Protobuf type {@code SetPlayerBirthdayRsp}
+   */
+  public static final class SetPlayerBirthdayRsp extends
+      com.google.protobuf.GeneratedMessageV3 implements
+      // @@protoc_insertion_point(message_implements:SetPlayerBirthdayRsp)
+      SetPlayerBirthdayRspOrBuilder {
+  private static final long serialVersionUID = 0L;
+    // Use SetPlayerBirthdayRsp.newBuilder() to construct.
+    private SetPlayerBirthdayRsp(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+      super(builder);
+    }
+    private SetPlayerBirthdayRsp() {
+    }
+
+    @java.lang.Override
+    @SuppressWarnings({"unused"})
+    protected java.lang.Object newInstance(
+        UnusedPrivateParameter unused) {
+      return new SetPlayerBirthdayRsp();
+    }
+
+    @java.lang.Override
+    public final com.google.protobuf.UnknownFieldSet
+    getUnknownFields() {
+      return this.unknownFields;
+    }
+    private SetPlayerBirthdayRsp(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      this();
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
+      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+          com.google.protobuf.UnknownFieldSet.newBuilder();
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10: {
+              emu.grasscutter.net.proto.BirthdayOuterClass.Birthday.Builder subBuilder = null;
+              if (birth_ != null) {
+                subBuilder = birth_.toBuilder();
+              }
+              birth_ = input.readMessage(emu.grasscutter.net.proto.BirthdayOuterClass.Birthday.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(birth_);
+                birth_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+            default: {
+              if (!parseUnknownField(
+                  input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+          }
+        }
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.setUnfinishedMessage(this);
+      } catch (com.google.protobuf.UninitializedMessageException e) {
+        throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
+      } catch (java.io.IOException e) {
+        throw new com.google.protobuf.InvalidProtocolBufferException(
+            e).setUnfinishedMessage(this);
+      } finally {
+        this.unknownFields = unknownFields.build();
+        makeExtensionsImmutable();
+      }
+    }
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return emu.grasscutter.net.proto.SetPlayerBirthdayRspOuterClass.internal_static_SetPlayerBirthdayRsp_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return emu.grasscutter.net.proto.SetPlayerBirthdayRspOuterClass.internal_static_SetPlayerBirthdayRsp_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              emu.grasscutter.net.proto.SetPlayerBirthdayRspOuterClass.SetPlayerBirthdayRsp.class, emu.grasscutter.net.proto.SetPlayerBirthdayRspOuterClass.SetPlayerBirthdayRsp.Builder.class);
+    }
+
+    public static final int BIRTH_FIELD_NUMBER = 1;
+    private emu.grasscutter.net.proto.BirthdayOuterClass.Birthday birth_;
+    /**
+     * <code>.Birthday birth = 1;</code>
+     * @return Whether the birth field is set.
+     */
+    @java.lang.Override
+    public boolean hasBirth() {
+      return birth_ != null;
+    }
+    /**
+     * <code>.Birthday birth = 1;</code>
+     * @return The birth.
+     */
+    @java.lang.Override
+    public emu.grasscutter.net.proto.BirthdayOuterClass.Birthday getBirth() {
+      return birth_ == null ? emu.grasscutter.net.proto.BirthdayOuterClass.Birthday.getDefaultInstance() : birth_;
+    }
+    /**
+     * <code>.Birthday birth = 1;</code>
+     */
+    @java.lang.Override
+    public emu.grasscutter.net.proto.BirthdayOuterClass.BirthdayOrBuilder getBirthOrBuilder() {
+      return getBirth();
+    }
+
+    private byte memoizedIsInitialized = -1;
+    @java.lang.Override
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized == 1) return true;
+      if (isInitialized == 0) return false;
+
+      memoizedIsInitialized = 1;
+      return true;
+    }
+
+    @java.lang.Override
+    public void writeTo(com.google.protobuf.CodedOutputStream output)
+                        throws java.io.IOException {
+      if (birth_ != null) {
+        output.writeMessage(1, getBirth());
+      }
+      unknownFields.writeTo(output);
+    }
+
+    @java.lang.Override
+    public int getSerializedSize() {
+      int size = memoizedSize;
+      if (size != -1) return size;
+
+      size = 0;
+      if (birth_ != null) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeMessageSize(1, getBirth());
+      }
+      size += unknownFields.getSerializedSize();
+      memoizedSize = size;
+      return size;
+    }
+
+    @java.lang.Override
+    public boolean equals(final java.lang.Object obj) {
+      if (obj == this) {
+       return true;
+      }
+      if (!(obj instanceof emu.grasscutter.net.proto.SetPlayerBirthdayRspOuterClass.SetPlayerBirthdayRsp)) {
+        return super.equals(obj);
+      }
+      emu.grasscutter.net.proto.SetPlayerBirthdayRspOuterClass.SetPlayerBirthdayRsp other = (emu.grasscutter.net.proto.SetPlayerBirthdayRspOuterClass.SetPlayerBirthdayRsp) obj;
+
+      if (hasBirth() != other.hasBirth()) return false;
+      if (hasBirth()) {
+        if (!getBirth()
+            .equals(other.getBirth())) return false;
+      }
+      if (!unknownFields.equals(other.unknownFields)) return false;
+      return true;
+    }
+
+    @java.lang.Override
+    public int hashCode() {
+      if (memoizedHashCode != 0) {
+        return memoizedHashCode;
+      }
+      int hash = 41;
+      hash = (19 * hash) + getDescriptor().hashCode();
+      if (hasBirth()) {
+        hash = (37 * hash) + BIRTH_FIELD_NUMBER;
+        hash = (53 * hash) + getBirth().hashCode();
+      }
+      hash = (29 * hash) + unknownFields.hashCode();
+      memoizedHashCode = hash;
+      return hash;
+    }
+
+    public static emu.grasscutter.net.proto.SetPlayerBirthdayRspOuterClass.SetPlayerBirthdayRsp parseFrom(
+        java.nio.ByteBuffer data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+    public static emu.grasscutter.net.proto.SetPlayerBirthdayRspOuterClass.SetPlayerBirthdayRsp parseFrom(
+        java.nio.ByteBuffer data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+    public static emu.grasscutter.net.proto.SetPlayerBirthdayRspOuterClass.SetPlayerBirthdayRsp parseFrom(
+        com.google.protobuf.ByteString data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+    public static emu.grasscutter.net.proto.SetPlayerBirthdayRspOuterClass.SetPlayerBirthdayRsp parseFrom(
+        com.google.protobuf.ByteString data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+    public static emu.grasscutter.net.proto.SetPlayerBirthdayRspOuterClass.SetPlayerBirthdayRsp parseFrom(byte[] data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+    public static emu.grasscutter.net.proto.SetPlayerBirthdayRspOuterClass.SetPlayerBirthdayRsp parseFrom(
+        byte[] data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+    public static emu.grasscutter.net.proto.SetPlayerBirthdayRspOuterClass.SetPlayerBirthdayRsp parseFrom(java.io.InputStream input)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+          .parseWithIOException(PARSER, input);
+    }
+    public static emu.grasscutter.net.proto.SetPlayerBirthdayRspOuterClass.SetPlayerBirthdayRsp parseFrom(
+        java.io.InputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+          .parseWithIOException(PARSER, input, extensionRegistry);
+    }
+    public static emu.grasscutter.net.proto.SetPlayerBirthdayRspOuterClass.SetPlayerBirthdayRsp parseDelimitedFrom(java.io.InputStream input)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+          .parseDelimitedWithIOException(PARSER, input);
+    }
+    public static emu.grasscutter.net.proto.SetPlayerBirthdayRspOuterClass.SetPlayerBirthdayRsp parseDelimitedFrom(
+        java.io.InputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+          .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+    }
+    public static emu.grasscutter.net.proto.SetPlayerBirthdayRspOuterClass.SetPlayerBirthdayRsp parseFrom(
+        com.google.protobuf.CodedInputStream input)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+          .parseWithIOException(PARSER, input);
+    }
+    public static emu.grasscutter.net.proto.SetPlayerBirthdayRspOuterClass.SetPlayerBirthdayRsp parseFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+          .parseWithIOException(PARSER, input, extensionRegistry);
+    }
+
+    @java.lang.Override
+    public Builder newBuilderForType() { return newBuilder(); }
+    public static Builder newBuilder() {
+      return DEFAULT_INSTANCE.toBuilder();
+    }
+    public static Builder newBuilder(emu.grasscutter.net.proto.SetPlayerBirthdayRspOuterClass.SetPlayerBirthdayRsp prototype) {
+      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+    }
+    @java.lang.Override
+    public Builder toBuilder() {
+      return this == DEFAULT_INSTANCE
+          ? new Builder() : new Builder().mergeFrom(this);
+    }
+
+    @java.lang.Override
+    protected Builder newBuilderForType(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      Builder builder = new Builder(parent);
+      return builder;
+    }
+    /**
+     * Protobuf type {@code SetPlayerBirthdayRsp}
+     */
+    public static final class Builder extends
+        com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+        // @@protoc_insertion_point(builder_implements:SetPlayerBirthdayRsp)
+        emu.grasscutter.net.proto.SetPlayerBirthdayRspOuterClass.SetPlayerBirthdayRspOrBuilder {
+      public static final com.google.protobuf.Descriptors.Descriptor
+          getDescriptor() {
+        return emu.grasscutter.net.proto.SetPlayerBirthdayRspOuterClass.internal_static_SetPlayerBirthdayRsp_descriptor;
+      }
+
+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return emu.grasscutter.net.proto.SetPlayerBirthdayRspOuterClass.internal_static_SetPlayerBirthdayRsp_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                emu.grasscutter.net.proto.SetPlayerBirthdayRspOuterClass.SetPlayerBirthdayRsp.class, emu.grasscutter.net.proto.SetPlayerBirthdayRspOuterClass.SetPlayerBirthdayRsp.Builder.class);
+      }
+
+      // Construct using emu.grasscutter.net.proto.SetPlayerBirthdayRspOuterClass.SetPlayerBirthdayRsp.newBuilder()
+      private Builder() {
+        maybeForceBuilderInitialization();
+      }
+
+      private Builder(
+          com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+        super(parent);
+        maybeForceBuilderInitialization();
+      }
+      private void maybeForceBuilderInitialization() {
+        if (com.google.protobuf.GeneratedMessageV3
+                .alwaysUseFieldBuilders) {
+        }
+      }
+      @java.lang.Override
+      public Builder clear() {
+        super.clear();
+        if (birthBuilder_ == null) {
+          birth_ = null;
+        } else {
+          birth_ = null;
+          birthBuilder_ = null;
+        }
+        return this;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Descriptors.Descriptor
+          getDescriptorForType() {
+        return emu.grasscutter.net.proto.SetPlayerBirthdayRspOuterClass.internal_static_SetPlayerBirthdayRsp_descriptor;
+      }
+
+      @java.lang.Override
+      public emu.grasscutter.net.proto.SetPlayerBirthdayRspOuterClass.SetPlayerBirthdayRsp getDefaultInstanceForType() {
+        return emu.grasscutter.net.proto.SetPlayerBirthdayRspOuterClass.SetPlayerBirthdayRsp.getDefaultInstance();
+      }
+
+      @java.lang.Override
+      public emu.grasscutter.net.proto.SetPlayerBirthdayRspOuterClass.SetPlayerBirthdayRsp build() {
+        emu.grasscutter.net.proto.SetPlayerBirthdayRspOuterClass.SetPlayerBirthdayRsp result = buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(result);
+        }
+        return result;
+      }
+
+      @java.lang.Override
+      public emu.grasscutter.net.proto.SetPlayerBirthdayRspOuterClass.SetPlayerBirthdayRsp buildPartial() {
+        emu.grasscutter.net.proto.SetPlayerBirthdayRspOuterClass.SetPlayerBirthdayRsp result = new emu.grasscutter.net.proto.SetPlayerBirthdayRspOuterClass.SetPlayerBirthdayRsp(this);
+        if (birthBuilder_ == null) {
+          result.birth_ = birth_;
+        } else {
+          result.birth_ = birthBuilder_.build();
+        }
+        onBuilt();
+        return result;
+      }
+
+      @java.lang.Override
+      public Builder clone() {
+        return super.clone();
+      }
+      @java.lang.Override
+      public Builder setField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          java.lang.Object value) {
+        return super.setField(field, value);
+      }
+      @java.lang.Override
+      public Builder clearField(
+          com.google.protobuf.Descriptors.FieldDescriptor field) {
+        return super.clearField(field);
+      }
+      @java.lang.Override
+      public Builder clearOneof(
+          com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+        return super.clearOneof(oneof);
+      }
+      @java.lang.Override
+      public Builder setRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          int index, java.lang.Object value) {
+        return super.setRepeatedField(field, index, value);
+      }
+      @java.lang.Override
+      public Builder addRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          java.lang.Object value) {
+        return super.addRepeatedField(field, value);
+      }
+      @java.lang.Override
+      public Builder mergeFrom(com.google.protobuf.Message other) {
+        if (other instanceof emu.grasscutter.net.proto.SetPlayerBirthdayRspOuterClass.SetPlayerBirthdayRsp) {
+          return mergeFrom((emu.grasscutter.net.proto.SetPlayerBirthdayRspOuterClass.SetPlayerBirthdayRsp)other);
+        } else {
+          super.mergeFrom(other);
+          return this;
+        }
+      }
+
+      public Builder mergeFrom(emu.grasscutter.net.proto.SetPlayerBirthdayRspOuterClass.SetPlayerBirthdayRsp other) {
+        if (other == emu.grasscutter.net.proto.SetPlayerBirthdayRspOuterClass.SetPlayerBirthdayRsp.getDefaultInstance()) return this;
+        if (other.hasBirth()) {
+          mergeBirth(other.getBirth());
+        }
+        this.mergeUnknownFields(other.unknownFields);
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final boolean isInitialized() {
+        return true;
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        emu.grasscutter.net.proto.SetPlayerBirthdayRspOuterClass.SetPlayerBirthdayRsp parsedMessage = null;
+        try {
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage = (emu.grasscutter.net.proto.SetPlayerBirthdayRspOuterClass.SetPlayerBirthdayRsp) e.getUnfinishedMessage();
+          throw e.unwrapIOException();
+        } finally {
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
+        return this;
+      }
+
+      private emu.grasscutter.net.proto.BirthdayOuterClass.Birthday birth_;
+      private com.google.protobuf.SingleFieldBuilderV3<
+          emu.grasscutter.net.proto.BirthdayOuterClass.Birthday, emu.grasscutter.net.proto.BirthdayOuterClass.Birthday.Builder, emu.grasscutter.net.proto.BirthdayOuterClass.BirthdayOrBuilder> birthBuilder_;
+      /**
+       * <code>.Birthday birth = 1;</code>
+       * @return Whether the birth field is set.
+       */
+      public boolean hasBirth() {
+        return birthBuilder_ != null || birth_ != null;
+      }
+      /**
+       * <code>.Birthday birth = 1;</code>
+       * @return The birth.
+       */
+      public emu.grasscutter.net.proto.BirthdayOuterClass.Birthday getBirth() {
+        if (birthBuilder_ == null) {
+          return birth_ == null ? emu.grasscutter.net.proto.BirthdayOuterClass.Birthday.getDefaultInstance() : birth_;
+        } else {
+          return birthBuilder_.getMessage();
+        }
+      }
+      /**
+       * <code>.Birthday birth = 1;</code>
+       */
+      public Builder setBirth(emu.grasscutter.net.proto.BirthdayOuterClass.Birthday value) {
+        if (birthBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          birth_ = value;
+          onChanged();
+        } else {
+          birthBuilder_.setMessage(value);
+        }
+
+        return this;
+      }
+      /**
+       * <code>.Birthday birth = 1;</code>
+       */
+      public Builder setBirth(
+          emu.grasscutter.net.proto.BirthdayOuterClass.Birthday.Builder builderForValue) {
+        if (birthBuilder_ == null) {
+          birth_ = builderForValue.build();
+          onChanged();
+        } else {
+          birthBuilder_.setMessage(builderForValue.build());
+        }
+
+        return this;
+      }
+      /**
+       * <code>.Birthday birth = 1;</code>
+       */
+      public Builder mergeBirth(emu.grasscutter.net.proto.BirthdayOuterClass.Birthday value) {
+        if (birthBuilder_ == null) {
+          if (birth_ != null) {
+            birth_ =
+              emu.grasscutter.net.proto.BirthdayOuterClass.Birthday.newBuilder(birth_).mergeFrom(value).buildPartial();
+          } else {
+            birth_ = value;
+          }
+          onChanged();
+        } else {
+          birthBuilder_.mergeFrom(value);
+        }
+
+        return this;
+      }
+      /**
+       * <code>.Birthday birth = 1;</code>
+       */
+      public Builder clearBirth() {
+        if (birthBuilder_ == null) {
+          birth_ = null;
+          onChanged();
+        } else {
+          birth_ = null;
+          birthBuilder_ = null;
+        }
+
+        return this;
+      }
+      /**
+       * <code>.Birthday birth = 1;</code>
+       */
+      public emu.grasscutter.net.proto.BirthdayOuterClass.Birthday.Builder getBirthBuilder() {
+        
+        onChanged();
+        return getBirthFieldBuilder().getBuilder();
+      }
+      /**
+       * <code>.Birthday birth = 1;</code>
+       */
+      public emu.grasscutter.net.proto.BirthdayOuterClass.BirthdayOrBuilder getBirthOrBuilder() {
+        if (birthBuilder_ != null) {
+          return birthBuilder_.getMessageOrBuilder();
+        } else {
+          return birth_ == null ?
+              emu.grasscutter.net.proto.BirthdayOuterClass.Birthday.getDefaultInstance() : birth_;
+        }
+      }
+      /**
+       * <code>.Birthday birth = 1;</code>
+       */
+      private com.google.protobuf.SingleFieldBuilderV3<
+          emu.grasscutter.net.proto.BirthdayOuterClass.Birthday, emu.grasscutter.net.proto.BirthdayOuterClass.Birthday.Builder, emu.grasscutter.net.proto.BirthdayOuterClass.BirthdayOrBuilder> 
+          getBirthFieldBuilder() {
+        if (birthBuilder_ == null) {
+          birthBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
+              emu.grasscutter.net.proto.BirthdayOuterClass.Birthday, emu.grasscutter.net.proto.BirthdayOuterClass.Birthday.Builder, emu.grasscutter.net.proto.BirthdayOuterClass.BirthdayOrBuilder>(
+                  getBirth(),
+                  getParentForChildren(),
+                  isClean());
+          birth_ = null;
+        }
+        return birthBuilder_;
+      }
+      @java.lang.Override
+      public final Builder setUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.setUnknownFields(unknownFields);
+      }
+
+      @java.lang.Override
+      public final Builder mergeUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.mergeUnknownFields(unknownFields);
+      }
+
+
+      // @@protoc_insertion_point(builder_scope:SetPlayerBirthdayRsp)
+    }
+
+    // @@protoc_insertion_point(class_scope:SetPlayerBirthdayRsp)
+    private static final emu.grasscutter.net.proto.SetPlayerBirthdayRspOuterClass.SetPlayerBirthdayRsp DEFAULT_INSTANCE;
+    static {
+      DEFAULT_INSTANCE = new emu.grasscutter.net.proto.SetPlayerBirthdayRspOuterClass.SetPlayerBirthdayRsp();
+    }
+
+    public static emu.grasscutter.net.proto.SetPlayerBirthdayRspOuterClass.SetPlayerBirthdayRsp getDefaultInstance() {
+      return DEFAULT_INSTANCE;
+    }
+
+    private static final com.google.protobuf.Parser<SetPlayerBirthdayRsp>
+        PARSER = new com.google.protobuf.AbstractParser<SetPlayerBirthdayRsp>() {
+      @java.lang.Override
+      public SetPlayerBirthdayRsp parsePartialFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws com.google.protobuf.InvalidProtocolBufferException {
+        return new SetPlayerBirthdayRsp(input, extensionRegistry);
+      }
+    };
+
+    public static com.google.protobuf.Parser<SetPlayerBirthdayRsp> parser() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Parser<SetPlayerBirthdayRsp> getParserForType() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public emu.grasscutter.net.proto.SetPlayerBirthdayRspOuterClass.SetPlayerBirthdayRsp getDefaultInstanceForType() {
+      return DEFAULT_INSTANCE;
+    }
+
+  }
+
+  private static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_SetPlayerBirthdayRsp_descriptor;
+  private static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_SetPlayerBirthdayRsp_fieldAccessorTable;
+
+  public static com.google.protobuf.Descriptors.FileDescriptor
+      getDescriptor() {
+    return descriptor;
+  }
+  private static  com.google.protobuf.Descriptors.FileDescriptor
+      descriptor;
+  static {
+    java.lang.String[] descriptorData = {
+      "\n proto/SetPlayerBirthdayRsp.proto\032\024prot" +
+      "o/Birthday.proto\"0\n\024SetPlayerBirthdayRsp" +
+      "\022\030\n\005birth\030\001 \001(\0132\t.BirthdayB\033\n\031emu.grassc" +
+      "utter.net.protob\006proto3"
+    };
+    descriptor = com.google.protobuf.Descriptors.FileDescriptor
+      .internalBuildGeneratedFileFrom(descriptorData,
+        new com.google.protobuf.Descriptors.FileDescriptor[] {
+          emu.grasscutter.net.proto.BirthdayOuterClass.getDescriptor(),
+        });
+    internal_static_SetPlayerBirthdayRsp_descriptor =
+      getDescriptor().getMessageTypes().get(0);
+    internal_static_SetPlayerBirthdayRsp_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_SetPlayerBirthdayRsp_descriptor,
+        new java.lang.String[] { "Birth", });
+    emu.grasscutter.net.proto.BirthdayOuterClass.getDescriptor();
+  }
+
+  // @@protoc_insertion_point(outer_class_scope)
+}

src/main/java/emu/grasscutter/net/proto/SitReqOuterClass.java

@@ -0,0 +1,744 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: SitReq.proto
+
+package emu.grasscutter.net.proto;
+
+public final class SitReqOuterClass {
+  private SitReqOuterClass() {}
+  public static void registerAllExtensions(
+      com.google.protobuf.ExtensionRegistryLite registry) {
+  }
+
+  public static void registerAllExtensions(
+      com.google.protobuf.ExtensionRegistry registry) {
+    registerAllExtensions(
+        (com.google.protobuf.ExtensionRegistryLite) registry);
+  }
+  public interface SitReqOrBuilder extends
+      // @@protoc_insertion_point(interface_extends:SitReq)
+      com.google.protobuf.MessageOrBuilder {
+
+    /**
+     * <code>uint64 chair_id = 1;</code>
+     * @return The chairId.
+     */
+    long getChairId();
+
+    /**
+     * <code>.Vector position = 2;</code>
+     * @return Whether the position field is set.
+     */
+    boolean hasPosition();
+    /**
+     * <code>.Vector position = 2;</code>
+     * @return The position.
+     */
+    emu.grasscutter.net.proto.VectorOuterClass.Vector getPosition();
+    /**
+     * <code>.Vector position = 2;</code>
+     */
+    emu.grasscutter.net.proto.VectorOuterClass.VectorOrBuilder getPositionOrBuilder();
+  }
+  /**
+   * Protobuf type {@code SitReq}
+   */
+  public static final class SitReq extends
+      com.google.protobuf.GeneratedMessageV3 implements
+      // @@protoc_insertion_point(message_implements:SitReq)
+      SitReqOrBuilder {
+  private static final long serialVersionUID = 0L;
+    // Use SitReq.newBuilder() to construct.
+    private SitReq(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+      super(builder);
+    }
+    private SitReq() {
+    }
+
+    @java.lang.Override
+    @SuppressWarnings({"unused"})
+    protected java.lang.Object newInstance(
+        UnusedPrivateParameter unused) {
+      return new SitReq();
+    }
+
+    @java.lang.Override
+    public final com.google.protobuf.UnknownFieldSet
+    getUnknownFields() {
+      return this.unknownFields;
+    }
+    private SitReq(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      this();
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
+      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+          com.google.protobuf.UnknownFieldSet.newBuilder();
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8: {
+
+              chairId_ = input.readUInt64();
+              break;
+            }
+            case 18: {
+              emu.grasscutter.net.proto.VectorOuterClass.Vector.Builder subBuilder = null;
+              if (position_ != null) {
+                subBuilder = position_.toBuilder();
+              }
+              position_ = input.readMessage(emu.grasscutter.net.proto.VectorOuterClass.Vector.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(position_);
+                position_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+            default: {
+              if (!parseUnknownField(
+                  input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+          }
+        }
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.setUnfinishedMessage(this);
+      } catch (com.google.protobuf.UninitializedMessageException e) {
+        throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
+      } catch (java.io.IOException e) {
+        throw new com.google.protobuf.InvalidProtocolBufferException(
+            e).setUnfinishedMessage(this);
+      } finally {
+        this.unknownFields = unknownFields.build();
+        makeExtensionsImmutable();
+      }
+    }
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return emu.grasscutter.net.proto.SitReqOuterClass.internal_static_SitReq_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return emu.grasscutter.net.proto.SitReqOuterClass.internal_static_SitReq_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              emu.grasscutter.net.proto.SitReqOuterClass.SitReq.class, emu.grasscutter.net.proto.SitReqOuterClass.SitReq.Builder.class);
+    }
+
+    public static final int CHAIR_ID_FIELD_NUMBER = 1;
+    private long chairId_;
+    /**
+     * <code>uint64 chair_id = 1;</code>
+     * @return The chairId.
+     */
+    @java.lang.Override
+    public long getChairId() {
+      return chairId_;
+    }
+
+    public static final int POSITION_FIELD_NUMBER = 2;
+    private emu.grasscutter.net.proto.VectorOuterClass.Vector position_;
+    /**
+     * <code>.Vector position = 2;</code>
+     * @return Whether the position field is set.
+     */
+    @java.lang.Override
+    public boolean hasPosition() {
+      return position_ != null;
+    }
+    /**
+     * <code>.Vector position = 2;</code>
+     * @return The position.
+     */
+    @java.lang.Override
+    public emu.grasscutter.net.proto.VectorOuterClass.Vector getPosition() {
+      return position_ == null ? emu.grasscutter.net.proto.VectorOuterClass.Vector.getDefaultInstance() : position_;
+    }
+    /**
+     * <code>.Vector position = 2;</code>
+     */
+    @java.lang.Override
+    public emu.grasscutter.net.proto.VectorOuterClass.VectorOrBuilder getPositionOrBuilder() {
+      return getPosition();
+    }
+
+    private byte memoizedIsInitialized = -1;
+    @java.lang.Override
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized == 1) return true;
+      if (isInitialized == 0) return false;
+
+      memoizedIsInitialized = 1;
+      return true;
+    }
+
+    @java.lang.Override
+    public void writeTo(com.google.protobuf.CodedOutputStream output)
+                        throws java.io.IOException {
+      if (chairId_ != 0L) {
+        output.writeUInt64(1, chairId_);
+      }
+      if (position_ != null) {
+        output.writeMessage(2, getPosition());
+      }
+      unknownFields.writeTo(output);
+    }
+
+    @java.lang.Override
+    public int getSerializedSize() {
+      int size = memoizedSize;
+      if (size != -1) return size;
+
+      size = 0;
+      if (chairId_ != 0L) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeUInt64Size(1, chairId_);
+      }
+      if (position_ != null) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeMessageSize(2, getPosition());
+      }
+      size += unknownFields.getSerializedSize();
+      memoizedSize = size;
+      return size;
+    }
+
+    @java.lang.Override
+    public boolean equals(final java.lang.Object obj) {
+      if (obj == this) {
+       return true;
+      }
+      if (!(obj instanceof emu.grasscutter.net.proto.SitReqOuterClass.SitReq)) {
+        return super.equals(obj);
+      }
+      emu.grasscutter.net.proto.SitReqOuterClass.SitReq other = (emu.grasscutter.net.proto.SitReqOuterClass.SitReq) obj;
+
+      if (getChairId()
+          != other.getChairId()) return false;
+      if (hasPosition() != other.hasPosition()) return false;
+      if (hasPosition()) {
+        if (!getPosition()
+            .equals(other.getPosition())) return false;
+      }
+      if (!unknownFields.equals(other.unknownFields)) return false;
+      return true;
+    }
+
+    @java.lang.Override
+    public int hashCode() {
+      if (memoizedHashCode != 0) {
+        return memoizedHashCode;
+      }
+      int hash = 41;
+      hash = (19 * hash) + getDescriptor().hashCode();
+      hash = (37 * hash) + CHAIR_ID_FIELD_NUMBER;
+      hash = (53 * hash) + com.google.protobuf.Internal.hashLong(
+          getChairId());
+      if (hasPosition()) {
+        hash = (37 * hash) + POSITION_FIELD_NUMBER;
+        hash = (53 * hash) + getPosition().hashCode();
+      }
+      hash = (29 * hash) + unknownFields.hashCode();
+      memoizedHashCode = hash;
+      return hash;
+    }
+
+    public static emu.grasscutter.net.proto.SitReqOuterClass.SitReq parseFrom(
+        java.nio.ByteBuffer data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+    public static emu.grasscutter.net.proto.SitReqOuterClass.SitReq parseFrom(
+        java.nio.ByteBuffer data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+    public static emu.grasscutter.net.proto.SitReqOuterClass.SitReq parseFrom(
+        com.google.protobuf.ByteString data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+    public static emu.grasscutter.net.proto.SitReqOuterClass.SitReq parseFrom(
+        com.google.protobuf.ByteString data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+    public static emu.grasscutter.net.proto.SitReqOuterClass.SitReq parseFrom(byte[] data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+    public static emu.grasscutter.net.proto.SitReqOuterClass.SitReq parseFrom(
+        byte[] data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+    public static emu.grasscutter.net.proto.SitReqOuterClass.SitReq parseFrom(java.io.InputStream input)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+          .parseWithIOException(PARSER, input);
+    }
+    public static emu.grasscutter.net.proto.SitReqOuterClass.SitReq parseFrom(
+        java.io.InputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+          .parseWithIOException(PARSER, input, extensionRegistry);
+    }
+    public static emu.grasscutter.net.proto.SitReqOuterClass.SitReq parseDelimitedFrom(java.io.InputStream input)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+          .parseDelimitedWithIOException(PARSER, input);
+    }
+    public static emu.grasscutter.net.proto.SitReqOuterClass.SitReq parseDelimitedFrom(
+        java.io.InputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+          .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+    }
+    public static emu.grasscutter.net.proto.SitReqOuterClass.SitReq parseFrom(
+        com.google.protobuf.CodedInputStream input)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+          .parseWithIOException(PARSER, input);
+    }
+    public static emu.grasscutter.net.proto.SitReqOuterClass.SitReq parseFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+          .parseWithIOException(PARSER, input, extensionRegistry);
+    }
+
+    @java.lang.Override
+    public Builder newBuilderForType() { return newBuilder(); }
+    public static Builder newBuilder() {
+      return DEFAULT_INSTANCE.toBuilder();
+    }
+    public static Builder newBuilder(emu.grasscutter.net.proto.SitReqOuterClass.SitReq prototype) {
+      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+    }
+    @java.lang.Override
+    public Builder toBuilder() {
+      return this == DEFAULT_INSTANCE
+          ? new Builder() : new Builder().mergeFrom(this);
+    }
+
+    @java.lang.Override
+    protected Builder newBuilderForType(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      Builder builder = new Builder(parent);
+      return builder;
+    }
+    /**
+     * Protobuf type {@code SitReq}
+     */
+    public static final class Builder extends
+        com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+        // @@protoc_insertion_point(builder_implements:SitReq)
+        emu.grasscutter.net.proto.SitReqOuterClass.SitReqOrBuilder {
+      public static final com.google.protobuf.Descriptors.Descriptor
+          getDescriptor() {
+        return emu.grasscutter.net.proto.SitReqOuterClass.internal_static_SitReq_descriptor;
+      }
+
+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return emu.grasscutter.net.proto.SitReqOuterClass.internal_static_SitReq_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                emu.grasscutter.net.proto.SitReqOuterClass.SitReq.class, emu.grasscutter.net.proto.SitReqOuterClass.SitReq.Builder.class);
+      }
+
+      // Construct using emu.grasscutter.net.proto.SitReqOuterClass.SitReq.newBuilder()
+      private Builder() {
+        maybeForceBuilderInitialization();
+      }
+
+      private Builder(
+          com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+        super(parent);
+        maybeForceBuilderInitialization();
+      }
+      private void maybeForceBuilderInitialization() {
+        if (com.google.protobuf.GeneratedMessageV3
+                .alwaysUseFieldBuilders) {
+        }
+      }
+      @java.lang.Override
+      public Builder clear() {
+        super.clear();
+        chairId_ = 0L;
+
+        if (positionBuilder_ == null) {
+          position_ = null;
+        } else {
+          position_ = null;
+          positionBuilder_ = null;
+        }
+        return this;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Descriptors.Descriptor
+          getDescriptorForType() {
+        return emu.grasscutter.net.proto.SitReqOuterClass.internal_static_SitReq_descriptor;
+      }
+
+      @java.lang.Override
+      public emu.grasscutter.net.proto.SitReqOuterClass.SitReq getDefaultInstanceForType() {
+        return emu.grasscutter.net.proto.SitReqOuterClass.SitReq.getDefaultInstance();
+      }
+
+      @java.lang.Override
+      public emu.grasscutter.net.proto.SitReqOuterClass.SitReq build() {
+        emu.grasscutter.net.proto.SitReqOuterClass.SitReq result = buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(result);
+        }
+        return result;
+      }
+
+      @java.lang.Override
+      public emu.grasscutter.net.proto.SitReqOuterClass.SitReq buildPartial() {
+        emu.grasscutter.net.proto.SitReqOuterClass.SitReq result = new emu.grasscutter.net.proto.SitReqOuterClass.SitReq(this);
+        result.chairId_ = chairId_;
+        if (positionBuilder_ == null) {
+          result.position_ = position_;
+        } else {
+          result.position_ = positionBuilder_.build();
+        }
+        onBuilt();
+        return result;
+      }
+
+      @java.lang.Override
+      public Builder clone() {
+        return super.clone();
+      }
+      @java.lang.Override
+      public Builder setField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          java.lang.Object value) {
+        return super.setField(field, value);
+      }
+      @java.lang.Override
+      public Builder clearField(
+          com.google.protobuf.Descriptors.FieldDescriptor field) {
+        return super.clearField(field);
+      }
+      @java.lang.Override
+      public Builder clearOneof(
+          com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+        return super.clearOneof(oneof);
+      }
+      @java.lang.Override
+      public Builder setRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          int index, java.lang.Object value) {
+        return super.setRepeatedField(field, index, value);
+      }
+      @java.lang.Override
+      public Builder addRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          java.lang.Object value) {
+        return super.addRepeatedField(field, value);
+      }
+      @java.lang.Override
+      public Builder mergeFrom(com.google.protobuf.Message other) {
+        if (other instanceof emu.grasscutter.net.proto.SitReqOuterClass.SitReq) {
+          return mergeFrom((emu.grasscutter.net.proto.SitReqOuterClass.SitReq)other);
+        } else {
+          super.mergeFrom(other);
+          return this;
+        }
+      }
+
+      public Builder mergeFrom(emu.grasscutter.net.proto.SitReqOuterClass.SitReq other) {
+        if (other == emu.grasscutter.net.proto.SitReqOuterClass.SitReq.getDefaultInstance()) return this;
+        if (other.getChairId() != 0L) {
+          setChairId(other.getChairId());
+        }
+        if (other.hasPosition()) {
+          mergePosition(other.getPosition());
+        }
+        this.mergeUnknownFields(other.unknownFields);
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final boolean isInitialized() {
+        return true;
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        emu.grasscutter.net.proto.SitReqOuterClass.SitReq parsedMessage = null;
+        try {
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage = (emu.grasscutter.net.proto.SitReqOuterClass.SitReq) e.getUnfinishedMessage();
+          throw e.unwrapIOException();
+        } finally {
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
+        return this;
+      }
+
+      private long chairId_ ;
+      /**
+       * <code>uint64 chair_id = 1;</code>
+       * @return The chairId.
+       */
+      @java.lang.Override
+      public long getChairId() {
+        return chairId_;
+      }
+      /**
+       * <code>uint64 chair_id = 1;</code>
+       * @param value The chairId to set.
+       * @return This builder for chaining.
+       */
+      public Builder setChairId(long value) {
+        
+        chairId_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       * <code>uint64 chair_id = 1;</code>
+       * @return This builder for chaining.
+       */
+      public Builder clearChairId() {
+        
+        chairId_ = 0L;
+        onChanged();
+        return this;
+      }
+
+      private emu.grasscutter.net.proto.VectorOuterClass.Vector position_;
+      private com.google.protobuf.SingleFieldBuilderV3<
+          emu.grasscutter.net.proto.VectorOuterClass.Vector, emu.grasscutter.net.proto.VectorOuterClass.Vector.Builder, emu.grasscutter.net.proto.VectorOuterClass.VectorOrBuilder> positionBuilder_;
+      /**
+       * <code>.Vector position = 2;</code>
+       * @return Whether the position field is set.
+       */
+      public boolean hasPosition() {
+        return positionBuilder_ != null || position_ != null;
+      }
+      /**
+       * <code>.Vector position = 2;</code>
+       * @return The position.
+       */
+      public emu.grasscutter.net.proto.VectorOuterClass.Vector getPosition() {
+        if (positionBuilder_ == null) {
+          return position_ == null ? emu.grasscutter.net.proto.VectorOuterClass.Vector.getDefaultInstance() : position_;
+        } else {
+          return positionBuilder_.getMessage();
+        }
+      }
+      /**
+       * <code>.Vector position = 2;</code>
+       */
+      public Builder setPosition(emu.grasscutter.net.proto.VectorOuterClass.Vector value) {
+        if (positionBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          position_ = value;
+          onChanged();
+        } else {
+          positionBuilder_.setMessage(value);
+        }
+
+        return this;
+      }
+      /**
+       * <code>.Vector position = 2;</code>
+       */
+      public Builder setPosition(
+          emu.grasscutter.net.proto.VectorOuterClass.Vector.Builder builderForValue) {
+        if (positionBuilder_ == null) {
+          position_ = builderForValue.build();
+          onChanged();
+        } else {
+          positionBuilder_.setMessage(builderForValue.build());
+        }
+
+        return this;
+      }
+      /**
+       * <code>.Vector position = 2;</code>
+       */
+      public Builder mergePosition(emu.grasscutter.net.proto.VectorOuterClass.Vector value) {
+        if (positionBuilder_ == null) {
+          if (position_ != null) {
+            position_ =
+              emu.grasscutter.net.proto.VectorOuterClass.Vector.newBuilder(position_).mergeFrom(value).buildPartial();
+          } else {
+            position_ = value;
+          }
+          onChanged();
+        } else {
+          positionBuilder_.mergeFrom(value);
+        }
+
+        return this;
+      }
+      /**
+       * <code>.Vector position = 2;</code>
+       */
+      public Builder clearPosition() {
+        if (positionBuilder_ == null) {
+          position_ = null;
+          onChanged();
+        } else {
+          position_ = null;
+          positionBuilder_ = null;
+        }
+
+        return this;
+      }
+      /**
+       * <code>.Vector position = 2;</code>
+       */
+      public emu.grasscutter.net.proto.VectorOuterClass.Vector.Builder getPositionBuilder() {
+        
+        onChanged();
+        return getPositionFieldBuilder().getBuilder();
+      }
+      /**
+       * <code>.Vector position = 2;</code>
+       */
+      public emu.grasscutter.net.proto.VectorOuterClass.VectorOrBuilder getPositionOrBuilder() {
+        if (positionBuilder_ != null) {
+          return positionBuilder_.getMessageOrBuilder();
+        } else {
+          return position_ == null ?
+              emu.grasscutter.net.proto.VectorOuterClass.Vector.getDefaultInstance() : position_;
+        }
+      }
+      /**
+       * <code>.Vector position = 2;</code>
+       */
+      private com.google.protobuf.SingleFieldBuilderV3<
+          emu.grasscutter.net.proto.VectorOuterClass.Vector, emu.grasscutter.net.proto.VectorOuterClass.Vector.Builder, emu.grasscutter.net.proto.VectorOuterClass.VectorOrBuilder> 
+          getPositionFieldBuilder() {
+        if (positionBuilder_ == null) {
+          positionBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
+              emu.grasscutter.net.proto.VectorOuterClass.Vector, emu.grasscutter.net.proto.VectorOuterClass.Vector.Builder, emu.grasscutter.net.proto.VectorOuterClass.VectorOrBuilder>(
+                  getPosition(),
+                  getParentForChildren(),
+                  isClean());
+          position_ = null;
+        }
+        return positionBuilder_;
+      }
+      @java.lang.Override
+      public final Builder setUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.setUnknownFields(unknownFields);
+      }
+
+      @java.lang.Override
+      public final Builder mergeUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.mergeUnknownFields(unknownFields);
+      }
+
+
+      // @@protoc_insertion_point(builder_scope:SitReq)
+    }
+
+    // @@protoc_insertion_point(class_scope:SitReq)
+    private static final emu.grasscutter.net.proto.SitReqOuterClass.SitReq DEFAULT_INSTANCE;
+    static {
+      DEFAULT_INSTANCE = new emu.grasscutter.net.proto.SitReqOuterClass.SitReq();
+    }
+
+    public static emu.grasscutter.net.proto.SitReqOuterClass.SitReq getDefaultInstance() {
+      return DEFAULT_INSTANCE;
+    }
+
+    private static final com.google.protobuf.Parser<SitReq>
+        PARSER = new com.google.protobuf.AbstractParser<SitReq>() {
+      @java.lang.Override
+      public SitReq parsePartialFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws com.google.protobuf.InvalidProtocolBufferException {
+        return new SitReq(input, extensionRegistry);
+      }
+    };
+
+    public static com.google.protobuf.Parser<SitReq> parser() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Parser<SitReq> getParserForType() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public emu.grasscutter.net.proto.SitReqOuterClass.SitReq getDefaultInstanceForType() {
+      return DEFAULT_INSTANCE;
+    }
+
+  }
+
+  private static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_SitReq_descriptor;
+  private static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_SitReq_fieldAccessorTable;
+
+  public static com.google.protobuf.Descriptors.FileDescriptor
+      getDescriptor() {
+    return descriptor;
+  }
+  private static  com.google.protobuf.Descriptors.FileDescriptor
+      descriptor;
+  static {
+    java.lang.String[] descriptorData = {
+      "\n\014SitReq.proto\032\014Vector.proto\"5\n\006SitReq\022\020" +
+      "\n\010chair_id\030\001 \001(\004\022\031\n\010position\030\002 \001(\0132\007.Vec" +
+      "torB\033\n\031emu.grasscutter.net.protob\006proto3"
+    };
+    descriptor = com.google.protobuf.Descriptors.FileDescriptor
+      .internalBuildGeneratedFileFrom(descriptorData,
+        new com.google.protobuf.Descriptors.FileDescriptor[] {
+          emu.grasscutter.net.proto.VectorOuterClass.getDescriptor(),
+        });
+    internal_static_SitReq_descriptor =
+      getDescriptor().getMessageTypes().get(0);
+    internal_static_SitReq_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_SitReq_descriptor,
+        new java.lang.String[] { "ChairId", "Position", });
+    emu.grasscutter.net.proto.VectorOuterClass.getDescriptor();
+  }
+
+  // @@protoc_insertion_point(outer_class_scope)
+}

src/main/java/emu/grasscutter/net/proto/SitRspOuterClass.java

@@ -0,0 +1,815 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: SitRsp.proto
+
+package emu.grasscutter.net.proto;
+
+public final class SitRspOuterClass {
+  private SitRspOuterClass() {}
+  public static void registerAllExtensions(
+      com.google.protobuf.ExtensionRegistryLite registry) {
+  }
+
+  public static void registerAllExtensions(
+      com.google.protobuf.ExtensionRegistry registry) {
+    registerAllExtensions(
+        (com.google.protobuf.ExtensionRegistryLite) registry);
+  }
+  public interface SitRspOrBuilder extends
+      // @@protoc_insertion_point(interface_extends:SitRsp)
+      com.google.protobuf.MessageOrBuilder {
+
+    /**
+     * <code>uint32 entity_id = 2;</code>
+     * @return The entityId.
+     */
+    int getEntityId();
+
+    /**
+     * <code>.Vector position = 3;</code>
+     * @return Whether the position field is set.
+     */
+    boolean hasPosition();
+    /**
+     * <code>.Vector position = 3;</code>
+     * @return The position.
+     */
+    emu.grasscutter.net.proto.VectorOuterClass.Vector getPosition();
+    /**
+     * <code>.Vector position = 3;</code>
+     */
+    emu.grasscutter.net.proto.VectorOuterClass.VectorOrBuilder getPositionOrBuilder();
+
+    /**
+     * <code>uint64 chair_id = 4;</code>
+     * @return The chairId.
+     */
+    long getChairId();
+  }
+  /**
+   * Protobuf type {@code SitRsp}
+   */
+  public static final class SitRsp extends
+      com.google.protobuf.GeneratedMessageV3 implements
+      // @@protoc_insertion_point(message_implements:SitRsp)
+      SitRspOrBuilder {
+  private static final long serialVersionUID = 0L;
+    // Use SitRsp.newBuilder() to construct.
+    private SitRsp(com.google.protobuf.GeneratedMessageV3.Builder<?> builder) {
+      super(builder);
+    }
+    private SitRsp() {
+    }
+
+    @java.lang.Override
+    @SuppressWarnings({"unused"})
+    protected java.lang.Object newInstance(
+        UnusedPrivateParameter unused) {
+      return new SitRsp();
+    }
+
+    @java.lang.Override
+    public final com.google.protobuf.UnknownFieldSet
+    getUnknownFields() {
+      return this.unknownFields;
+    }
+    private SitRsp(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      this();
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
+      com.google.protobuf.UnknownFieldSet.Builder unknownFields =
+          com.google.protobuf.UnknownFieldSet.newBuilder();
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 16: {
+
+              entityId_ = input.readUInt32();
+              break;
+            }
+            case 26: {
+              emu.grasscutter.net.proto.VectorOuterClass.Vector.Builder subBuilder = null;
+              if (position_ != null) {
+                subBuilder = position_.toBuilder();
+              }
+              position_ = input.readMessage(emu.grasscutter.net.proto.VectorOuterClass.Vector.parser(), extensionRegistry);
+              if (subBuilder != null) {
+                subBuilder.mergeFrom(position_);
+                position_ = subBuilder.buildPartial();
+              }
+
+              break;
+            }
+            case 32: {
+
+              chairId_ = input.readUInt64();
+              break;
+            }
+            default: {
+              if (!parseUnknownField(
+                  input, unknownFields, extensionRegistry, tag)) {
+                done = true;
+              }
+              break;
+            }
+          }
+        }
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.setUnfinishedMessage(this);
+      } catch (com.google.protobuf.UninitializedMessageException e) {
+        throw e.asInvalidProtocolBufferException().setUnfinishedMessage(this);
+      } catch (java.io.IOException e) {
+        throw new com.google.protobuf.InvalidProtocolBufferException(
+            e).setUnfinishedMessage(this);
+      } finally {
+        this.unknownFields = unknownFields.build();
+        makeExtensionsImmutable();
+      }
+    }
+    public static final com.google.protobuf.Descriptors.Descriptor
+        getDescriptor() {
+      return emu.grasscutter.net.proto.SitRspOuterClass.internal_static_SitRsp_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return emu.grasscutter.net.proto.SitRspOuterClass.internal_static_SitRsp_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              emu.grasscutter.net.proto.SitRspOuterClass.SitRsp.class, emu.grasscutter.net.proto.SitRspOuterClass.SitRsp.Builder.class);
+    }
+
+    public static final int ENTITY_ID_FIELD_NUMBER = 2;
+    private int entityId_;
+    /**
+     * <code>uint32 entity_id = 2;</code>
+     * @return The entityId.
+     */
+    @java.lang.Override
+    public int getEntityId() {
+      return entityId_;
+    }
+
+    public static final int POSITION_FIELD_NUMBER = 3;
+    private emu.grasscutter.net.proto.VectorOuterClass.Vector position_;
+    /**
+     * <code>.Vector position = 3;</code>
+     * @return Whether the position field is set.
+     */
+    @java.lang.Override
+    public boolean hasPosition() {
+      return position_ != null;
+    }
+    /**
+     * <code>.Vector position = 3;</code>
+     * @return The position.
+     */
+    @java.lang.Override
+    public emu.grasscutter.net.proto.VectorOuterClass.Vector getPosition() {
+      return position_ == null ? emu.grasscutter.net.proto.VectorOuterClass.Vector.getDefaultInstance() : position_;
+    }
+    /**
+     * <code>.Vector position = 3;</code>
+     */
+    @java.lang.Override
+    public emu.grasscutter.net.proto.VectorOuterClass.VectorOrBuilder getPositionOrBuilder() {
+      return getPosition();
+    }
+
+    public static final int CHAIR_ID_FIELD_NUMBER = 4;
+    private long chairId_;
+    /**
+     * <code>uint64 chair_id = 4;</code>
+     * @return The chairId.
+     */
+    @java.lang.Override
+    public long getChairId() {
+      return chairId_;
+    }
+
+    private byte memoizedIsInitialized = -1;
+    @java.lang.Override
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized == 1) return true;
+      if (isInitialized == 0) return false;
+
+      memoizedIsInitialized = 1;
+      return true;
+    }
+
+    @java.lang.Override
+    public void writeTo(com.google.protobuf.CodedOutputStream output)
+                        throws java.io.IOException {
+      if (entityId_ != 0) {
+        output.writeUInt32(2, entityId_);
+      }
+      if (position_ != null) {
+        output.writeMessage(3, getPosition());
+      }
+      if (chairId_ != 0L) {
+        output.writeUInt64(4, chairId_);
+      }
+      unknownFields.writeTo(output);
+    }
+
+    @java.lang.Override
+    public int getSerializedSize() {
+      int size = memoizedSize;
+      if (size != -1) return size;
+
+      size = 0;
+      if (entityId_ != 0) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeUInt32Size(2, entityId_);
+      }
+      if (position_ != null) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeMessageSize(3, getPosition());
+      }
+      if (chairId_ != 0L) {
+        size += com.google.protobuf.CodedOutputStream
+          .computeUInt64Size(4, chairId_);
+      }
+      size += unknownFields.getSerializedSize();
+      memoizedSize = size;
+      return size;
+    }
+
+    @java.lang.Override
+    public boolean equals(final java.lang.Object obj) {
+      if (obj == this) {
+       return true;
+      }
+      if (!(obj instanceof emu.grasscutter.net.proto.SitRspOuterClass.SitRsp)) {
+        return super.equals(obj);
+      }
+      emu.grasscutter.net.proto.SitRspOuterClass.SitRsp other = (emu.grasscutter.net.proto.SitRspOuterClass.SitRsp) obj;
+
+      if (getEntityId()
+          != other.getEntityId()) return false;
+      if (hasPosition() != other.hasPosition()) return false;
+      if (hasPosition()) {
+        if (!getPosition()
+            .equals(other.getPosition())) return false;
+      }
+      if (getChairId()
+          != other.getChairId()) return false;
+      if (!unknownFields.equals(other.unknownFields)) return false;
+      return true;
+    }
+
+    @java.lang.Override
+    public int hashCode() {
+      if (memoizedHashCode != 0) {
+        return memoizedHashCode;
+      }
+      int hash = 41;
+      hash = (19 * hash) + getDescriptor().hashCode();
+      hash = (37 * hash) + ENTITY_ID_FIELD_NUMBER;
+      hash = (53 * hash) + getEntityId();
+      if (hasPosition()) {
+        hash = (37 * hash) + POSITION_FIELD_NUMBER;
+        hash = (53 * hash) + getPosition().hashCode();
+      }
+      hash = (37 * hash) + CHAIR_ID_FIELD_NUMBER;
+      hash = (53 * hash) + com.google.protobuf.Internal.hashLong(
+          getChairId());
+      hash = (29 * hash) + unknownFields.hashCode();
+      memoizedHashCode = hash;
+      return hash;
+    }
+
+    public static emu.grasscutter.net.proto.SitRspOuterClass.SitRsp parseFrom(
+        java.nio.ByteBuffer data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+    public static emu.grasscutter.net.proto.SitRspOuterClass.SitRsp parseFrom(
+        java.nio.ByteBuffer data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+    public static emu.grasscutter.net.proto.SitRspOuterClass.SitRsp parseFrom(
+        com.google.protobuf.ByteString data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+    public static emu.grasscutter.net.proto.SitRspOuterClass.SitRsp parseFrom(
+        com.google.protobuf.ByteString data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+    public static emu.grasscutter.net.proto.SitRspOuterClass.SitRsp parseFrom(byte[] data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+    public static emu.grasscutter.net.proto.SitRspOuterClass.SitRsp parseFrom(
+        byte[] data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+    public static emu.grasscutter.net.proto.SitRspOuterClass.SitRsp parseFrom(java.io.InputStream input)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+          .parseWithIOException(PARSER, input);
+    }
+    public static emu.grasscutter.net.proto.SitRspOuterClass.SitRsp parseFrom(
+        java.io.InputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+          .parseWithIOException(PARSER, input, extensionRegistry);
+    }
+    public static emu.grasscutter.net.proto.SitRspOuterClass.SitRsp parseDelimitedFrom(java.io.InputStream input)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+          .parseDelimitedWithIOException(PARSER, input);
+    }
+    public static emu.grasscutter.net.proto.SitRspOuterClass.SitRsp parseDelimitedFrom(
+        java.io.InputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+          .parseDelimitedWithIOException(PARSER, input, extensionRegistry);
+    }
+    public static emu.grasscutter.net.proto.SitRspOuterClass.SitRsp parseFrom(
+        com.google.protobuf.CodedInputStream input)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+          .parseWithIOException(PARSER, input);
+    }
+    public static emu.grasscutter.net.proto.SitRspOuterClass.SitRsp parseFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3
+          .parseWithIOException(PARSER, input, extensionRegistry);
+    }
+
+    @java.lang.Override
+    public Builder newBuilderForType() { return newBuilder(); }
+    public static Builder newBuilder() {
+      return DEFAULT_INSTANCE.toBuilder();
+    }
+    public static Builder newBuilder(emu.grasscutter.net.proto.SitRspOuterClass.SitRsp prototype) {
+      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+    }
+    @java.lang.Override
+    public Builder toBuilder() {
+      return this == DEFAULT_INSTANCE
+          ? new Builder() : new Builder().mergeFrom(this);
+    }
+
+    @java.lang.Override
+    protected Builder newBuilderForType(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      Builder builder = new Builder(parent);
+      return builder;
+    }
+    /**
+     * Protobuf type {@code SitRsp}
+     */
+    public static final class Builder extends
+        com.google.protobuf.GeneratedMessageV3.Builder<Builder> implements
+        // @@protoc_insertion_point(builder_implements:SitRsp)
+        emu.grasscutter.net.proto.SitRspOuterClass.SitRspOrBuilder {
+      public static final com.google.protobuf.Descriptors.Descriptor
+          getDescriptor() {
+        return emu.grasscutter.net.proto.SitRspOuterClass.internal_static_SitRsp_descriptor;
+      }
+
+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return emu.grasscutter.net.proto.SitRspOuterClass.internal_static_SitRsp_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                emu.grasscutter.net.proto.SitRspOuterClass.SitRsp.class, emu.grasscutter.net.proto.SitRspOuterClass.SitRsp.Builder.class);
+      }
+
+      // Construct using emu.grasscutter.net.proto.SitRspOuterClass.SitRsp.newBuilder()
+      private Builder() {
+        maybeForceBuilderInitialization();
+      }
+
+      private Builder(
+          com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+        super(parent);
+        maybeForceBuilderInitialization();
+      }
+      private void maybeForceBuilderInitialization() {
+        if (com.google.protobuf.GeneratedMessageV3
+                .alwaysUseFieldBuilders) {
+        }
+      }
+      @java.lang.Override
+      public Builder clear() {
+        super.clear();
+        entityId_ = 0;
+
+        if (positionBuilder_ == null) {
+          position_ = null;
+        } else {
+          position_ = null;
+          positionBuilder_ = null;
+        }
+        chairId_ = 0L;
+
+        return this;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Descriptors.Descriptor
+          getDescriptorForType() {
+        return emu.grasscutter.net.proto.SitRspOuterClass.internal_static_SitRsp_descriptor;
+      }
+
+      @java.lang.Override
+      public emu.grasscutter.net.proto.SitRspOuterClass.SitRsp getDefaultInstanceForType() {
+        return emu.grasscutter.net.proto.SitRspOuterClass.SitRsp.getDefaultInstance();
+      }
+
+      @java.lang.Override
+      public emu.grasscutter.net.proto.SitRspOuterClass.SitRsp build() {
+        emu.grasscutter.net.proto.SitRspOuterClass.SitRsp result = buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(result);
+        }
+        return result;
+      }
+
+      @java.lang.Override
+      public emu.grasscutter.net.proto.SitRspOuterClass.SitRsp buildPartial() {
+        emu.grasscutter.net.proto.SitRspOuterClass.SitRsp result = new emu.grasscutter.net.proto.SitRspOuterClass.SitRsp(this);
+        result.entityId_ = entityId_;
+        if (positionBuilder_ == null) {
+          result.position_ = position_;
+        } else {
+          result.position_ = positionBuilder_.build();
+        }
+        result.chairId_ = chairId_;
+        onBuilt();
+        return result;
+      }
+
+      @java.lang.Override
+      public Builder clone() {
+        return super.clone();
+      }
+      @java.lang.Override
+      public Builder setField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          java.lang.Object value) {
+        return super.setField(field, value);
+      }
+      @java.lang.Override
+      public Builder clearField(
+          com.google.protobuf.Descriptors.FieldDescriptor field) {
+        return super.clearField(field);
+      }
+      @java.lang.Override
+      public Builder clearOneof(
+          com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+        return super.clearOneof(oneof);
+      }
+      @java.lang.Override
+      public Builder setRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          int index, java.lang.Object value) {
+        return super.setRepeatedField(field, index, value);
+      }
+      @java.lang.Override
+      public Builder addRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          java.lang.Object value) {
+        return super.addRepeatedField(field, value);
+      }
+      @java.lang.Override
+      public Builder mergeFrom(com.google.protobuf.Message other) {
+        if (other instanceof emu.grasscutter.net.proto.SitRspOuterClass.SitRsp) {
+          return mergeFrom((emu.grasscutter.net.proto.SitRspOuterClass.SitRsp)other);
+        } else {
+          super.mergeFrom(other);
+          return this;
+        }
+      }
+
+      public Builder mergeFrom(emu.grasscutter.net.proto.SitRspOuterClass.SitRsp other) {
+        if (other == emu.grasscutter.net.proto.SitRspOuterClass.SitRsp.getDefaultInstance()) return this;
+        if (other.getEntityId() != 0) {
+          setEntityId(other.getEntityId());
+        }
+        if (other.hasPosition()) {
+          mergePosition(other.getPosition());
+        }
+        if (other.getChairId() != 0L) {
+          setChairId(other.getChairId());
+        }
+        this.mergeUnknownFields(other.unknownFields);
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final boolean isInitialized() {
+        return true;
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        emu.grasscutter.net.proto.SitRspOuterClass.SitRsp parsedMessage = null;
+        try {
+          parsedMessage = PARSER.parsePartialFrom(input, extensionRegistry);
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          parsedMessage = (emu.grasscutter.net.proto.SitRspOuterClass.SitRsp) e.getUnfinishedMessage();
+          throw e.unwrapIOException();
+        } finally {
+          if (parsedMessage != null) {
+            mergeFrom(parsedMessage);
+          }
+        }
+        return this;
+      }
+
+      private int entityId_ ;
+      /**
+       * <code>uint32 entity_id = 2;</code>
+       * @return The entityId.
+       */
+      @java.lang.Override
+      public int getEntityId() {
+        return entityId_;
+      }
+      /**
+       * <code>uint32 entity_id = 2;</code>
+       * @param value The entityId to set.
+       * @return This builder for chaining.
+       */
+      public Builder setEntityId(int value) {
+        
+        entityId_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       * <code>uint32 entity_id = 2;</code>
+       * @return This builder for chaining.
+       */
+      public Builder clearEntityId() {
+        
+        entityId_ = 0;
+        onChanged();
+        return this;
+      }
+
+      private emu.grasscutter.net.proto.VectorOuterClass.Vector position_;
+      private com.google.protobuf.SingleFieldBuilderV3<
+          emu.grasscutter.net.proto.VectorOuterClass.Vector, emu.grasscutter.net.proto.VectorOuterClass.Vector.Builder, emu.grasscutter.net.proto.VectorOuterClass.VectorOrBuilder> positionBuilder_;
+      /**
+       * <code>.Vector position = 3;</code>
+       * @return Whether the position field is set.
+       */
+      public boolean hasPosition() {
+        return positionBuilder_ != null || position_ != null;
+      }
+      /**
+       * <code>.Vector position = 3;</code>
+       * @return The position.
+       */
+      public emu.grasscutter.net.proto.VectorOuterClass.Vector getPosition() {
+        if (positionBuilder_ == null) {
+          return position_ == null ? emu.grasscutter.net.proto.VectorOuterClass.Vector.getDefaultInstance() : position_;
+        } else {
+          return positionBuilder_.getMessage();
+        }
+      }
+      /**
+       * <code>.Vector position = 3;</code>
+       */
+      public Builder setPosition(emu.grasscutter.net.proto.VectorOuterClass.Vector value) {
+        if (positionBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          position_ = value;
+          onChanged();
+        } else {
+          positionBuilder_.setMessage(value);
+        }
+
+        return this;
+      }
+      /**
+       * <code>.Vector position = 3;</code>
+       */
+      public Builder setPosition(
+          emu.grasscutter.net.proto.VectorOuterClass.Vector.Builder builderForValue) {
+        if (positionBuilder_ == null) {
+          position_ = builderForValue.build();
+          onChanged();
+        } else {
+          positionBuilder_.setMessage(builderForValue.build());
+        }
+
+        return this;
+      }
+      /**
+       * <code>.Vector position = 3;</code>
+       */
+      public Builder mergePosition(emu.grasscutter.net.proto.VectorOuterClass.Vector value) {
+        if (positionBuilder_ == null) {
+          if (position_ != null) {
+            position_ =
+              emu.grasscutter.net.proto.VectorOuterClass.Vector.newBuilder(position_).mergeFrom(value).buildPartial();
+          } else {
+            position_ = value;
+          }
+          onChanged();
+        } else {
+          positionBuilder_.mergeFrom(value);
+        }
+
+        return this;
+      }
+      /**
+       * <code>.Vector position = 3;</code>
+       */
+      public Builder clearPosition() {
+        if (positionBuilder_ == null) {
+          position_ = null;
+          onChanged();
+        } else {
+          position_ = null;
+          positionBuilder_ = null;
+        }
+
+        return this;
+      }
+      /**
+       * <code>.Vector position = 3;</code>
+       */
+      public emu.grasscutter.net.proto.VectorOuterClass.Vector.Builder getPositionBuilder() {
+        
+        onChanged();
+        return getPositionFieldBuilder().getBuilder();
+      }
+      /**
+       * <code>.Vector position = 3;</code>
+       */
+      public emu.grasscutter.net.proto.VectorOuterClass.VectorOrBuilder getPositionOrBuilder() {
+        if (positionBuilder_ != null) {
+          return positionBuilder_.getMessageOrBuilder();
+        } else {
+          return position_ == null ?
+              emu.grasscutter.net.proto.VectorOuterClass.Vector.getDefaultInstance() : position_;
+        }
+      }
+      /**
+       * <code>.Vector position = 3;</code>
+       */
+      private com.google.protobuf.SingleFieldBuilderV3<
+          emu.grasscutter.net.proto.VectorOuterClass.Vector, emu.grasscutter.net.proto.VectorOuterClass.Vector.Builder, emu.grasscutter.net.proto.VectorOuterClass.VectorOrBuilder> 
+          getPositionFieldBuilder() {
+        if (positionBuilder_ == null) {
+          positionBuilder_ = new com.google.protobuf.SingleFieldBuilderV3<
+              emu.grasscutter.net.proto.VectorOuterClass.Vector, emu.grasscutter.net.proto.VectorOuterClass.Vector.Builder, emu.grasscutter.net.proto.VectorOuterClass.VectorOrBuilder>(
+                  getPosition(),
+                  getParentForChildren(),
+                  isClean());
+          position_ = null;
+        }
+        return positionBuilder_;
+      }
+
+      private long chairId_ ;
+      /**
+       * <code>uint64 chair_id = 4;</code>
+       * @return The chairId.
+       */
+      @java.lang.Override
+      public long getChairId() {
+        return chairId_;
+      }
+      /**
+       * <code>uint64 chair_id = 4;</code>
+       * @param value The chairId to set.
+       * @return This builder for chaining.
+       */
+      public Builder setChairId(long value) {
+        
+        chairId_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       * <code>uint64 chair_id = 4;</code>
+       * @return This builder for chaining.
+       */
+      public Builder clearChairId() {
+        
+        chairId_ = 0L;
+        onChanged();
+        return this;
+      }
+      @java.lang.Override
+      public final Builder setUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.setUnknownFields(unknownFields);
+      }
+
+      @java.lang.Override
+      public final Builder mergeUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.mergeUnknownFields(unknownFields);
+      }
+
+
+      // @@protoc_insertion_point(builder_scope:SitRsp)
+    }
+
+    // @@protoc_insertion_point(class_scope:SitRsp)
+    private static final emu.grasscutter.net.proto.SitRspOuterClass.SitRsp DEFAULT_INSTANCE;
+    static {
+      DEFAULT_INSTANCE = new emu.grasscutter.net.proto.SitRspOuterClass.SitRsp();
+    }
+
+    public static emu.grasscutter.net.proto.SitRspOuterClass.SitRsp getDefaultInstance() {
+      return DEFAULT_INSTANCE;
+    }
+
+    private static final com.google.protobuf.Parser<SitRsp>
+        PARSER = new com.google.protobuf.AbstractParser<SitRsp>() {
+      @java.lang.Override
+      public SitRsp parsePartialFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws com.google.protobuf.InvalidProtocolBufferException {
+        return new SitRsp(input, extensionRegistry);
+      }
+    };
+
+    public static com.google.protobuf.Parser<SitRsp> parser() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Parser<SitRsp> getParserForType() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public emu.grasscutter.net.proto.SitRspOuterClass.SitRsp getDefaultInstanceForType() {
+      return DEFAULT_INSTANCE;
+    }
+
+  }
+
+  private static final com.google.protobuf.Descriptors.Descriptor
+    internal_static_SitRsp_descriptor;
+  private static final 
+    com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_SitRsp_fieldAccessorTable;
+
+  public static com.google.protobuf.Descriptors.FileDescriptor
+      getDescriptor() {
+    return descriptor;
+  }
+  private static  com.google.protobuf.Descriptors.FileDescriptor
+      descriptor;
+  static {
+    java.lang.String[] descriptorData = {
+      "\n\014SitRsp.proto\032\014Vector.proto\"H\n\006SitRsp\022\021" +
+      "\n\tentity_id\030\002 \001(\r\022\031\n\010position\030\003 \001(\0132\007.Ve" +
+      "ctor\022\020\n\010chair_id\030\004 \001(\004B\033\n\031emu.grasscutte" +
+      "r.net.protob\006proto3"
+    };
+    descriptor = com.google.protobuf.Descriptors.FileDescriptor
+      .internalBuildGeneratedFileFrom(descriptorData,
+        new com.google.protobuf.Descriptors.FileDescriptor[] {
+          emu.grasscutter.net.proto.VectorOuterClass.getDescriptor(),
+        });
+    internal_static_SitRsp_descriptor =
+      getDescriptor().getMessageTypes().get(0);
+    internal_static_SitRsp_fieldAccessorTable = new
+      com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+        internal_static_SitRsp_descriptor,
+        new java.lang.String[] { "EntityId", "Position", "ChairId", });
+    emu.grasscutter.net.proto.VectorOuterClass.getDescriptor();
+  }
+
+  // @@protoc_insertion_point(outer_class_scope)
+}

src/main/java/emu/grasscutter/netty/MihoyoKcpServer.java

@@ -64,9 +64,8 @@ public class MihoyoKcpServer extends Thread {
 
             // Wait until the server socket is closed.
             f.channel().closeFuture().sync();
-        } catch (Exception e) {
-			// TODO Auto-generated catch block
-			e.printStackTrace();
+        } catch (Exception exception) {
+			Grasscutter.getLogger().error("Unable to start game server.", exception);
 		} finally {
         	// Close
 			finish();

src/main/java/emu/grasscutter/server/dispatch/DispatchServer.java

@@ -24,6 +24,7 @@ import emu.grasscutter.utils.Utils;
 import javax.net.ssl.KeyManagerFactory;
 import javax.net.ssl.SSLContext;
 import java.io.*;
+import java.net.BindException;
 import java.net.InetSocketAddress;
 import java.net.URI;
 import java.net.URLDecoder;
@@ -101,14 +102,14 @@ public final class DispatchServer {
 						.setName("os_usa")
 						.setTitle(Grasscutter.getConfig().getGameServerOptions().Name)
 						.setType("DEV_PUBLIC")
-						.setDispatchUrl("https://" + (Grasscutter.getConfig().getDispatchOptions().PublicIp.isEmpty() ? Grasscutter.getConfig().getDispatchOptions().Ip : Grasscutter.getConfig().getDispatchOptions().PublicIp) + ":" + getAddress().getPort() + "/query_cur_region_" + defaultServerName)
+						.setDispatchUrl("http" + (Grasscutter.getConfig().getDispatchOptions().FrontHTTPS ? "s" : "") + "://" + (Grasscutter.getConfig().getDispatchOptions().PublicIp.isEmpty() ? Grasscutter.getConfig().getDispatchOptions().Ip : Grasscutter.getConfig().getDispatchOptions().PublicIp) + ":" + (Grasscutter.getConfig().getDispatchOptions().PublicPort != 0 ? Grasscutter.getConfig().getDispatchOptions().PublicPort : Grasscutter.getConfig().getDispatchOptions().Port) + "/query_cur_region_" + defaultServerName)
 						.build();
 				usedNames.add(defaultServerName);
 				servers.add(server);
 
 				RegionInfo serverRegion = regionQuery.getRegionInfo().toBuilder()
 						.setIp((Grasscutter.getConfig().getGameServerOptions().PublicIp.isEmpty() ? Grasscutter.getConfig().getGameServerOptions().Ip : Grasscutter.getConfig().getGameServerOptions().PublicIp))
-						.setPort(Grasscutter.getConfig().getGameServerOptions().Port)
+						.setPort(Grasscutter.getConfig().getGameServerOptions().PublicPort != 0 ? Grasscutter.getConfig().getGameServerOptions().PublicPort : Grasscutter.getConfig().getGameServerOptions().Port)
 						.setSecretKey(ByteString.copyFrom(FileUtils.read(Grasscutter.getConfig().KEY_FOLDER + "dispatchSeed.bin")))
 						.build();
 
@@ -131,7 +132,7 @@ public final class DispatchServer {
 						.setName(regionInfo.Name)
 						.setTitle(regionInfo.Title)
 						.setType("DEV_PUBLIC")
-						.setDispatchUrl("https://" + (Grasscutter.getConfig().getDispatchOptions().PublicIp.isEmpty() ? Grasscutter.getConfig().getDispatchOptions().Ip : Grasscutter.getConfig().getDispatchOptions().PublicIp) + ":" + getAddress().getPort() + "/query_cur_region_" + regionInfo.Name)
+						.setDispatchUrl("http" + (Grasscutter.getConfig().getDispatchOptions().FrontHTTPS ? "s" : "") + "://" + (Grasscutter.getConfig().getDispatchOptions().PublicIp.isEmpty() ? Grasscutter.getConfig().getDispatchOptions().Ip : Grasscutter.getConfig().getDispatchOptions().PublicIp) + ":" + getAddress().getPort() + "/query_cur_region_" + regionInfo.Name)
 						.build();
 				usedNames.add(regionInfo.Name);
 				servers.add(server);
@@ -158,12 +159,21 @@ public final class DispatchServer {
 			Grasscutter.getLogger().error("[Dispatch] Error while initializing region info!", e);
 		}
 	}
+	
+	private HttpServer safelyCreateServer(InetSocketAddress address) {
+		try {
+			return HttpServer.create(address, 0);
+		} catch (BindException ignored) {
+			Grasscutter.getLogger().error("Unable to bind to port: " + getAddress().getPort() + " (HTTP)");
+		} catch (Exception exception) {
+			Grasscutter.getLogger().error("Unable to start HTTP server.", exception);
+		} return null;
+	}
 
 	public void start() throws Exception {
 		HttpServer server;
 		if (Grasscutter.getConfig().getDispatchOptions().UseSSL) {
-			HttpsServer httpsServer;
-			httpsServer = HttpsServer.create(getAddress(), 0);
+			HttpsServer httpsServer = HttpsServer.create(getAddress(), 0);
 			SSLContext sslContext = SSLContext.getInstance("TLS");
 			try (FileInputStream fis = new FileInputStream(Grasscutter.getConfig().getDispatchOptions().KeystorePath)) {
 				char[] keystorePassword = Grasscutter.getConfig().getDispatchOptions().KeystorePassword.toCharArray();
@@ -176,14 +186,20 @@ public final class DispatchServer {
 				
 				httpsServer.setHttpsConfigurator(new HttpsConfigurator(sslContext));
 				server = httpsServer;
+			} catch (BindException ignored) {
+				Grasscutter.getLogger().error("Unable to bind to port: " + getAddress().getPort() + " (HTTPS)");
+				server = this.safelyCreateServer(this.getAddress());
 			} catch (Exception e) {
 				Grasscutter.getLogger().warn("[Dispatch] No SSL cert found! Falling back to HTTP server.");
 				Grasscutter.getConfig().getDispatchOptions().UseSSL = false;
-				server = HttpServer.create(getAddress(), 0);
+				server = this.safelyCreateServer(this.getAddress());
 			}
 		} else {
-			server = HttpServer.create(getAddress(), 0);
+			server = this.safelyCreateServer(this.getAddress());
 		}
+		
+		if(server == null)
+			throw new NullPointerException("An HTTP server was not created.");
 
 		server.createContext("/", t -> responseHTML(t, "Hello"));
 		

src/main/java/emu/grasscutter/server/packet/recv/HandleEvtAvatarSitDownNotify.java

@@ -0,0 +1,21 @@
+package emu.grasscutter.server.packet.recv;
+
+import emu.grasscutter.net.packet.Opcodes;
+import emu.grasscutter.net.packet.PacketOpcodes;
+import emu.grasscutter.net.proto.EvtAvatarSitDownNotifyOuterClass.EvtAvatarSitDownNotify;
+import emu.grasscutter.net.packet.PacketHandler;
+import emu.grasscutter.server.game.GameSession;
+import emu.grasscutter.server.packet.send.PacketEvtAvatarSitDownNotify;
+
+@Opcodes(PacketOpcodes.EvtAvatarSitDownNotify)
+public class HandleEvtAvatarSitDownNotify extends PacketHandler {
+
+    @Override
+    public void handle(GameSession session, byte[] header, byte[] payload) throws Exception {
+        EvtAvatarSitDownNotify notify = EvtAvatarSitDownNotify.parseFrom(payload);
+
+        session.send(new PacketEvtAvatarSitDownNotify(notify));
+    }
+
+}
+

src/main/java/emu/grasscutter/server/packet/recv/HandleSitReq.java

@@ -0,0 +1,24 @@
+package emu.grasscutter.server.packet.recv;
+
+import emu.grasscutter.net.packet.Opcodes;
+import emu.grasscutter.net.packet.PacketHandler;
+import emu.grasscutter.net.packet.PacketOpcodes;
+import emu.grasscutter.net.proto.SitReqOuterClass;
+import emu.grasscutter.server.game.GameSession;
+import emu.grasscutter.server.packet.send.PacketSitRsp;
+import emu.grasscutter.utils.Position;
+
+@Opcodes(PacketOpcodes.SitReq)
+public class HandleSitReq extends PacketHandler {
+    @Override
+    public void handle(GameSession session, byte[] header, byte[] payload) throws Exception {
+        SitReqOuterClass.SitReq req = SitReqOuterClass.SitReq.parseFrom(payload);
+
+        float x = req.getPosition().getX();
+        float y = req.getPosition().getY();
+        float z = req.getPosition().getZ();
+
+        session.send(new PacketSitRsp(req.getChairId(), new Position(x, y, z), session.getPlayer().getTeamManager().getCurrentAvatarEntity().getId()));
+    }
+
+}

src/main/java/emu/grasscutter/server/packet/recv/HandlerSceneEntityDrownReq.java

@@ -0,0 +1,41 @@
+package emu.grasscutter.server.packet.recv;
+
+import emu.grasscutter.game.entity.GenshinEntity;
+import emu.grasscutter.game.props.LifeState;
+import emu.grasscutter.net.packet.Opcodes;
+import emu.grasscutter.net.packet.PacketHandler;
+import emu.grasscutter.net.packet.PacketOpcodes;
+import emu.grasscutter.net.proto.SceneEntityDrownReqOuterClass.SceneEntityDrownReq;
+import emu.grasscutter.net.proto.VisionTypeOuterClass;
+import emu.grasscutter.server.game.GameSession;
+import emu.grasscutter.server.packet.send.PacketLifeStateChangeNotify;
+import emu.grasscutter.server.packet.send.PacketSceneEntityDrownRsp;
+
+@Opcodes(PacketOpcodes.SceneEntityDrownReq)
+public class HandlerSceneEntityDrownReq extends PacketHandler {
+
+    @Override
+    public void handle(GameSession session, byte[] header, byte[] payload) throws Exception {
+        SceneEntityDrownReq req = SceneEntityDrownReq.parseFrom(payload);
+
+
+        GenshinEntity entity = session.getPlayer().getScene().getEntityById(req.getEntityId());
+
+
+        PacketLifeStateChangeNotify lifeStateChangeNotify = new PacketLifeStateChangeNotify(entity, entity, LifeState.LIFE_DEAD);
+        PacketSceneEntityDrownRsp drownRsp = new PacketSceneEntityDrownRsp(req.getEntityId());
+
+
+
+        //kill entity + broadcast it
+
+        session.getPlayer().getScene().broadcastPacket(lifeStateChangeNotify);
+        session.getPlayer().getScene().broadcastPacket(drownRsp);
+
+        //TODO: make a list somewhere of all entities to remove per tick rather than one by one
+
+        session.getPlayer().getScene().removeEntity(entity, VisionTypeOuterClass.VisionType.VisionDie);
+
+    }
+
+}

src/main/java/emu/grasscutter/server/packet/recv/HandlerSetPlayerBirthdayReq.java

@@ -0,0 +1,38 @@
+package emu.grasscutter.server.packet.recv;
+
+import emu.grasscutter.server.game.GameSession;
+import emu.grasscutter.server.packet.send.PacketGetPlayerSocialDetailRsp;
+import emu.grasscutter.server.packet.send.PacketSetPlayerBirthdayRsp;
+
+import emu.grasscutter.net.packet.Opcodes;
+import emu.grasscutter.net.packet.PacketOpcodes;
+import emu.grasscutter.net.packet.PacketHandler;
+
+import emu.grasscutter.net.proto.SocialDetailOuterClass.SocialDetail;
+import emu.grasscutter.net.proto.SetPlayerBirthdayReqOuterClass.SetPlayerBirthdayReq;
+
+import com.google.gson.Gson;
+
+@Opcodes(PacketOpcodes.SetPlayerBirthdayReq)
+public class HandlerSetPlayerBirthdayReq extends PacketHandler {
+	@Override
+	public void handle(GameSession session, byte[] header, byte[] payload) throws Exception {
+		SetPlayerBirthdayReq req = SetPlayerBirthdayReq.parseFrom(payload);
+
+		if(req.getBirth() != null && req.getBirth().getDay() > 0 && req.getBirth().getMonth() > 0)
+		{
+			int day = req.getBirth().getDay();
+			int month = req.getBirth().getMonth();
+
+			// Update birthday value
+			session.getPlayer().setBirthday(day, month);
+
+			// Save birthday month and day
+			session.getPlayer().save();
+			SocialDetail.Builder detail = session.getPlayer().getSocialDetail();
+
+			session.send(new PacketSetPlayerBirthdayRsp(session.getPlayer()));
+			session.send(new PacketGetPlayerSocialDetailRsp(detail));
+		}
+	}
+}

src/main/java/emu/grasscutter/server/packet/send/PacketEvtAvatarSitDownNotify.java

@@ -0,0 +1,20 @@
+package emu.grasscutter.server.packet.send;
+
+import emu.grasscutter.net.packet.GenshinPacket;
+import emu.grasscutter.net.packet.PacketOpcodes;
+import emu.grasscutter.net.proto.EvtAvatarSitDownNotifyOuterClass.EvtAvatarSitDownNotify;
+
+public class PacketEvtAvatarSitDownNotify extends GenshinPacket {
+
+    public PacketEvtAvatarSitDownNotify(EvtAvatarSitDownNotify notify) {
+        super(PacketOpcodes.EvtAvatarSitDownNotify);
+
+        EvtAvatarSitDownNotify proto = EvtAvatarSitDownNotify.newBuilder()
+                .setEntityId(notify.getEntityId())
+                .setPosition(notify.getPosition())
+                .setChairId(notify.getChairId())
+                .build();
+
+        this.setData(proto);
+    }
+}

src/main/java/emu/grasscutter/server/packet/send/PacketPlayerLoginRsp.java

@@ -41,7 +41,7 @@ public class PacketPlayerLoginRsp extends GenshinPacket {
 
 					RegionInfo serverRegion = regionQuery.getRegionInfo().toBuilder()
 							.setIp((Grasscutter.getConfig().getGameServerOptions().PublicIp.isEmpty() ? Grasscutter.getConfig().getGameServerOptions().Ip : Grasscutter.getConfig().getGameServerOptions().PublicIp))
-							.setPort(Grasscutter.getConfig().getGameServerOptions().Port)
+							.setPort(Grasscutter.getConfig().getGameServerOptions().PublicPort != 0 ? Grasscutter.getConfig().getGameServerOptions().PublicPort : Grasscutter.getConfig().getGameServerOptions().Port)
 							.setSecretKey(ByteString.copyFrom(FileUtils.read(Grasscutter.getConfig().KEY_FOLDER + "dispatchSeed.bin")))
 							.build();
 

src/main/java/emu/grasscutter/server/packet/send/PacketSceneEntityDrownRsp.java

@@ -0,0 +1,20 @@
+package emu.grasscutter.server.packet.send;
+
+import emu.grasscutter.game.entity.GenshinEntity;
+import emu.grasscutter.net.packet.GenshinPacket;
+import emu.grasscutter.net.packet.PacketOpcodes;
+import emu.grasscutter.net.proto.SceneEntityDrownRspOuterClass.SceneEntityDrownRsp;
+import emu.grasscutter.net.proto.VisionTypeOuterClass.VisionType;
+
+public class PacketSceneEntityDrownRsp extends GenshinPacket {
+
+    public PacketSceneEntityDrownRsp(int entityId) {
+        super(PacketOpcodes.SceneEntityDrownRsp);
+
+        SceneEntityDrownRsp proto = new SceneEntityDrownRsp().toBuilder().setEntityId(entityId).build();
+
+        this.setData(proto);
+    }
+}
+
+

src/main/java/emu/grasscutter/server/packet/send/PacketSetPlayerBirthdayRsp.java

@@ -0,0 +1,20 @@
+package emu.grasscutter.server.packet.send;
+
+import emu.grasscutter.Grasscutter;
+import emu.grasscutter.game.GenshinPlayer;
+import emu.grasscutter.net.packet.GenshinPacket;
+import emu.grasscutter.net.packet.PacketOpcodes;
+import emu.grasscutter.net.proto.SetPlayerBirthdayRspOuterClass.SetPlayerBirthdayRsp;
+import emu.grasscutter.net.proto.BirthdayOuterClass.Birthday;
+
+public class PacketSetPlayerBirthdayRsp extends GenshinPacket {
+    public PacketSetPlayerBirthdayRsp(GenshinPlayer player) {
+        super(PacketOpcodes.SetPlayerBirthdayRsp);
+
+        SetPlayerBirthdayRsp proto = SetPlayerBirthdayRsp.newBuilder()
+                .setBirth(player.getBirthday().toProto())
+                .build();
+
+        this.setData(proto);
+    }
+}

src/main/java/emu/grasscutter/server/packet/send/PacketSitRsp.java

@@ -0,0 +1,21 @@
+package emu.grasscutter.server.packet.send;
+
+import emu.grasscutter.net.packet.GenshinPacket;
+import emu.grasscutter.net.packet.PacketOpcodes;
+import emu.grasscutter.net.proto.SitRspOuterClass.SitRsp;
+import emu.grasscutter.utils.Position;
+
+public class PacketSitRsp extends GenshinPacket {
+
+    public PacketSitRsp(long chairId, Position pos, int EntityId) {
+        super(PacketOpcodes.SitRsp);
+
+        SitRsp proto = SitRsp.newBuilder()
+                .setEntityId(EntityId)
+                .setPosition(pos.toProto())
+                .setChairId(chairId)
+                .build();
+
+        this.setData(proto);
+    }
+}

src/main/java/emu/grasscutter/tools/Tools.java

@@ -1,8 +1,13 @@
 package emu.grasscutter.tools;
 
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
 import java.io.FileReader;
 import java.io.FileWriter;
+import java.io.InputStreamReader;
+import java.io.OutputStreamWriter;
 import java.io.PrintWriter;
+import java.nio.charset.StandardCharsets;
 import java.time.LocalDateTime;
 import java.time.format.DateTimeFormatter;
 import java.util.ArrayList;
@@ -30,13 +35,13 @@ public final class Tools {
 		ResourceLoader.loadResources();
 		
 		Map<Long, String> map;
-		try (FileReader fileReader = new FileReader(Utils.toFilePath(Grasscutter.getConfig().RESOURCE_FOLDER + "TextMap/TextMapEN.json"))) {
+		try (InputStreamReader fileReader = new InputStreamReader(new FileInputStream(Utils.toFilePath(Grasscutter.getConfig().RESOURCE_FOLDER + "TextMap/TextMapEN.json")), StandardCharsets.UTF_8)) {
 			map = Grasscutter.getGsonFactory().fromJson(fileReader, new TypeToken<Map<Long, String>>() {}.getType());
 		}
 		
 		List<Integer> list;
 		String fileName = "./GM Handbook.txt";
-		try (FileWriter fileWriter = new FileWriter(fileName); PrintWriter writer = new PrintWriter(fileWriter)) {
+		try (PrintWriter writer = new PrintWriter(new OutputStreamWriter(new FileOutputStream(fileName), StandardCharsets.UTF_8), false)) {
 			DateTimeFormatter dtf = DateTimeFormatter.ofPattern("yyyy/MM/dd HH:mm:ss");  
 			LocalDateTime now = LocalDateTime.now();
 			   

src/main/java/emu/grasscutter/utils/Position.java

@@ -2,8 +2,10 @@ package emu.grasscutter.utils;
 
 import java.io.Serializable;
 
+import dev.morphia.annotations.Entity;
 import emu.grasscutter.net.proto.VectorOuterClass.Vector;
 
+@Entity
 public class Position implements Serializable {
 	private static final long serialVersionUID = -2001232313615923575L;
 	

src/main/java/emu/grasscutter/utils/Utils.java

@@ -158,7 +158,7 @@ public final class Utils {
 		// Check for GenshinData.
 		if(!fileExists(resourcesFolder + "BinOutput") ||
 				!fileExists(resourcesFolder + "ExcelBinOutput")) {
-			logger.info("Place a copy of 'GenshinData' in the resources folder.");
+			logger.info("Place a copy of 'BinOutput' and 'ExcelBinOutput' in the resources folder.");
 			exit = true;
 		}
 

src/main/resources/logback.xml

@@ -4,8 +4,19 @@
       <pattern>[%d{HH:mm:ss}] [%highlight(%level)] %msg%n</pattern>
     </encoder>
   </appender>
+  <appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
+    <file>logs/latest.log</file>
+    <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
+      <fileNamePattern>logs/log.%d{yyyy-MM-dd}_%d{HH}.log.tar.gz</fileNamePattern>
+      <maxHistory>24</maxHistory>
+    </rollingPolicy>
+    <encoder>
+      <pattern>%d{yyyy-MM-dd'T'HH:mm:ss'Z'} - %m%n</pattern>
+    </encoder>
+  </appender>
   <logger name="org.reflections" level="OFF"/>
   <root level="INFO">
     <appender-ref ref="STDOUT" />
+    <appender-ref ref="FILE" />
   </root>
 </Configuration>

start.cmd

@@ -74,8 +74,10 @@ for /f "tokens=2*" %%a in ('reg query "HKCU\Software\Microsoft\Windows\CurrentVe
 
 @rem TODO: External proxy when ORIG_PROXY_ENABLE == 0x1
 echo set ws = createobject("wscript.shell") > "%temp%\proxy.vbs"
-echo ws.currentdirectory = "%MITMDUMP_PATH%" >> "%temp%\proxy.vbs"
-echo ws.run "cmd /c mitmdump.exe -s "^&chr(34)^&"%PROXY_SCRIPT_NAME%"^&chr(34)^&" -k",0 >> "%temp%\proxy.vbs"
+if not "%MITMDUMP_PATH%" == "" (
+	echo ws.currentdirectory = "%MITMDUMP_PATH%" >> "%temp%\proxy.vbs"
+)
+echo ws.run "cmd /c mitmdump.exe -s "^&chr(34)^&"%CUR_PATH%%PROXY_SCRIPT_NAME%"^&chr(34)^&" -k",0 >> "%temp%\proxy.vbs"
 "%temp%\proxy.vbs"
 del /f /q "%temp%\proxy.vbs" >nul 2>nul
 
@@ -117,7 +119,9 @@ set DATABASE=true
 mkdir "%DATABASE_STORAGE_PATH%" >nul 2>nul
 
 echo set ws = createobject("wscript.shell") > "%temp%\db.vbs"
+if not "%MONGODB_PATH%" == "" (
 echo ws.currentdirectory = "%MONGODB_PATH%" >> "%temp%\db.vbs"
+)
 echo ws.run "cmd /c mongod.exe --dbpath "^&chr(34)^&"%DATABASE_STORAGE_PATH%"^&chr(34)^&"",0 >> "%temp%\db.vbs"
 "%temp%\db.vbs"
 del /f /q "%temp%\db.vbs" >nul 2>nul