1.3.4 release

README.md

@@ -2,6 +2,7 @@
 This is a Minecraft forge mod using Mysql backend to make player data synchronization between different servers.  
 Such as equipment,inventory,effects,experience,food level.Any other mods support is also possible.  
 Support version now:  
+1.20.1
 1.19-1.19.3  
 1.18.2  
 1.16.5  

build.gradle

@@ -4,16 +4,16 @@ plugins {
     id 'net.minecraftforge.gradle' version '5.1.+'
 }
 
-version = '1.2.0'
+version = mod_version
 group = 'vip.fubuki.playersync' // http://maven.apache.org/guides/mini/guide-naming-conventions.html
 archivesBaseName = 'playersync'
 
-java.toolchain.languageVersion = JavaLanguageVersion.of(17)
+java.toolchain.languageVersion = JavaLanguageVersion.of(8)
 
 println "Java: ${System.getProperty 'java.version'}, JVM: ${System.getProperty 'java.vm.version'} (${System.getProperty 'java.vendor'}), Arch: ${System.getProperty 'os.arch'}"
 minecraft {
 
-    mappings channel: 'official', version: '1.19.2'
+    mappings channel: 'official', version: '1.16.5'
 
     //accessTransformer = file('src/main/resources/META-INF/accesstransformer.cfg') // Currently, this location cannot be changed from the default.
 
@@ -116,20 +116,15 @@ repositories {
 }
 
 dependencies {
-    minecraft 'net.minecraftforge:forge:1.19.2-43.1.1'
+    minecraft 'net.minecraftforge:forge:1.16.5-36.2.0'
 
     jarJar("curse.maven:MySQL-561280:3685108") {
-        jarJar.ranged(it, '[1.0,)')
+        jarJar.ranged(it, '[3685108,)')
     }
 
-    jarJar("com.zaxxer:HikariCP:3.4.5") {
-        jarJar.ranged(it, '[3.4.5,)')
-    }
-
-    runtimeOnly fg.deobf("top.theillusivec4.curios:curios-forge:1.19.2-5.1.1.0")
-    compileOnly fg.deobf("top.theillusivec4.curios:curios-forge:1.19.2-5.1.1.0:api")
+    runtimeOnly fg.deobf("top.theillusivec4.curios:curios-forge:1.16.5-4.1.0.1")
+    compileOnly fg.deobf("top.theillusivec4.curios:curios-forge:1.16.5-4.1.0.1:api")
     implementation fg.deobf("curse.maven:MySQL-561280:3685108")
-    implementation group: 'com.zaxxer', name: 'HikariCP', version: '3.4.5'
 }
 
 // Example for how to get properties into the manifest for reading at runtime.

gradle.properties

@@ -2,3 +2,5 @@
 # This is required to provide enough memory for the Minecraft decompilation process.
 org.gradle.jvmargs=-Xmx3G
 org.gradle.daemon=false
+
+mod_version=1.16.5-1.3.4

src/main/java/vip/fubuki/playersync/PlayerSync.java

@@ -1,8 +1,6 @@
 package vip.fubuki.playersync;
 
-import com.mojang.logging.LogUtils;
 import net.minecraftforge.common.MinecraftForge;
-import net.minecraftforge.event.server.ServerStartingEvent;
 import net.minecraftforge.eventbus.api.IEventBus;
 import net.minecraftforge.eventbus.api.SubscribeEvent;
 import net.minecraftforge.fml.ModList;
@@ -10,20 +8,20 @@ import net.minecraftforge.fml.ModLoadingContext;
 import net.minecraftforge.fml.common.Mod;
 import net.minecraftforge.fml.config.ModConfig;
 import net.minecraftforge.fml.event.lifecycle.FMLCommonSetupEvent;
+import net.minecraftforge.fml.event.server.FMLServerStartingEvent;
 import net.minecraftforge.fml.javafmlmod.FMLJavaModLoadingContext;
-import org.slf4j.Logger;
 import vip.fubuki.playersync.config.JdbcConfig;
 import vip.fubuki.playersync.sync.ChatSync;
 import vip.fubuki.playersync.sync.VanillaSync;
 import vip.fubuki.playersync.util.JDBCsetUp;
 
+import java.sql.ResultSet;
 import java.sql.SQLException;
 
 @Mod(PlayerSync.MODID)
 public class PlayerSync
 {
     public static final String MODID = "playersync";
-    public static final Logger LOGGER = LogUtils.getLogger();
     public PlayerSync()
     {
         IEventBus modEventBus = FMLJavaModLoadingContext.get().getModEventBus();
@@ -40,30 +38,38 @@ public class PlayerSync
     }
 
     @SubscribeEvent
-    public void onServerStarting(ServerStartingEvent event) throws SQLException {
-        JDBCsetUp.executeUpdate("CREATE DATABASE IF NOT EXISTS "+JdbcConfig.DATABASE_NAME.get(),true);
+    public void onServerStarting(FMLServerStartingEvent event) throws SQLException {
+        JDBCsetUp.executeUpdate("CREATE DATABASE IF NOT EXISTS "+JdbcConfig.DATABASE_NAME.get(),1);
 
         JDBCsetUp.executeUpdate("CREATE TABLE IF NOT EXISTS player_data (uuid CHAR(36) NOT NULL," +
-                "inventory MEDIUMBLOB,armor BLOB,advancements BLOB,enderchest MEDIUMBLOB,effects BLOB," +
-                "xp int,food_level int,score int,health int,online boolean, last_server int, PRIMARY KEY (uuid))");
-        JDBCsetUp.executeUpdate("CREATE TABLE IF NOT EXISTS chat (player CHAR(36) NOT NULL,message TEXT," +
-                "timestamp BIGINT)");
-        JDBCsetUp.executeUpdate("""
-                CREATE TABLE IF NOT EXISTS server_info (
-                  `id` INT NOT NULL,
-                  `enable` boolean NOT NULL,
-                  `last_update` BIGINT NOT NULL,
-                  PRIMARY KEY (`id`));""");
+                "inventory MEDIUMBLOB,armor BLOB,advancements BLOB,enderchest MEDIUMBLOB,effects BLOB,left_hand BLOB,cursors BLOB" +
+                "xp int,food_level int,score int,health int,online boolean, last_server int, PRIMARY KEY (uuid));");
+
+
+        JDBCsetUp.QueryResult queryResult = JDBCsetUp.executeQuery("SELECT COUNT(*) AS column_count FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = 'player_data';");
+
+        ResultSet resultSet = queryResult.getResultSet();
+        int columnCount = 0;
+        if(resultSet.next()) {
+            columnCount = resultSet.getInt("column_count");
+        }
+
+        if(columnCount<14){
+            JDBCsetUp.executeUpdate(" ALTER TABLE player_data ADD COLUMN left_hand blob, ADD COLUMN cursors blob; ");
+        }
+
+
+        JDBCsetUp.executeUpdate("CREATE TABLE IF NOT EXISTS server_info (`id` INT NOT NULL,`enable` boolean NOT NULL,`last_update` BIGINT NOT NULL,PRIMARY KEY (`id`));");
         long current = System.currentTimeMillis();
         JDBCsetUp.executeUpdate("INSERT INTO server_info(id,enable,last_update) " +
                 "VALUES(" + JdbcConfig.SERVER_ID.get() + ",true," + current + ") " +
                 "ON DUPLICATE KEY UPDATE id= " + JdbcConfig.SERVER_ID.get() +",enable = 1," +
                 "last_update=" + current + ";");
+        JDBCsetUp.executeUpdate("UPDATE server_info SET enable= 1 WHERE id= "+ JdbcConfig.SERVER_ID.get());
 
         if(ModList.get().isLoaded("curios")) {
             JDBCsetUp.executeUpdate("CREATE TABLE IF NOT EXISTS curios (uuid CHAR(36) NOT NULL,curios_item BLOB, PRIMARY KEY (uuid))");
         }
-        LOGGER.info("PlayerSync is ready!");
     }
 
 }

src/main/java/vip/fubuki/playersync/config/JdbcConfig.java

@@ -11,13 +11,16 @@ import java.util.Random;
 public class JdbcConfig {
     public static ForgeConfigSpec COMMON_CONFIG;
     public static ForgeConfigSpec.ConfigValue<String> HOST;
-    public static ForgeConfigSpec.ConfigValue<String> DATABASE_NAME;
     public static ForgeConfigSpec.IntValue PORT;
     public static ForgeConfigSpec.ConfigValue<String> USERNAME;
     public static ForgeConfigSpec.ConfigValue<String> PASSWORD;
+    public static ForgeConfigSpec.ConfigValue<String> DATABASE_NAME;
     public static ForgeConfigSpec.ConfigValue<List<String>> SYNC_WORLD;
     public static ForgeConfigSpec.BooleanValue USE_SSL;
     public static ForgeConfigSpec.BooleanValue SYNC_CHAT;
+    public static ForgeConfigSpec.BooleanValue IS_CHAT_SERVER;
+    public static ForgeConfigSpec.ConfigValue<String> CHAT_SERVER_IP;
+    public static ForgeConfigSpec.IntValue CHAT_SERVER_PORT;
 
     public static ForgeConfigSpec.ConfigValue<Integer> SERVER_ID;
 
@@ -26,14 +29,17 @@ public class JdbcConfig {
         ForgeConfigSpec.Builder COMMON_BUILDER = new ForgeConfigSpec.Builder();
         COMMON_BUILDER.comment("General settings").push("general");
         HOST=COMMON_BUILDER.comment("The host of the database").define("host", "localhost");
-        DATABASE_NAME= COMMON_BUILDER.comment("Database name").define("database_name", "playersync");
         PORT = COMMON_BUILDER.comment("database port").defineInRange("db_port", 3306, 0, 65535);
         USE_SSL = COMMON_BUILDER.comment("whether use SSL").define("use_ssl", false);
         USERNAME = COMMON_BUILDER.comment("username").define("user_name", "root");
         PASSWORD = COMMON_BUILDER.comment("password").define("password", "password");
-        SERVER_ID = COMMON_BUILDER.comment("the server id should be unique").define("Server_id", new Random().nextInt(1,Integer.MAX_VALUE-1));
+        DATABASE_NAME = COMMON_BUILDER.comment("database name").define("db_name","playersync");
+        SERVER_ID = COMMON_BUILDER.comment("the server id should be unique").define("Server_id", new Random().nextInt());
         SYNC_WORLD = COMMON_BUILDER.comment("The worlds that will be synchronized.If running in server it is supposed to have only one").define("sync_world", new ArrayList<>());
         SYNC_CHAT= COMMON_BUILDER.comment("Whether synchronize chat").define("sync_chat", true);
+        IS_CHAT_SERVER = COMMON_BUILDER.comment("Whether recieve messages from other servers as host").define("IsChatServer",false);
+        CHAT_SERVER_IP = COMMON_BUILDER.define("ChatServerIP","127.0.0.1");
+        CHAT_SERVER_PORT = COMMON_BUILDER.defineInRange("ChatServerPort",7900,0,65535);
         COMMON_BUILDER.pop();
         COMMON_CONFIG = COMMON_BUILDER.build();
     }

src/main/java/vip/fubuki/playersync/sync/ChatSync.java

@@ -1,44 +1,126 @@
 package vip.fubuki.playersync.sync;
 
-import net.minecraft.network.chat.Component;
-import net.minecraft.server.players.PlayerList;
+import net.minecraft.server.management.PlayerList;
+import net.minecraft.util.text.ChatType;
+import net.minecraft.util.text.ITextComponent;
+import net.minecraftforge.common.MinecraftForge;
+import net.minecraftforge.event.entity.player.PlayerEvent;
 import net.minecraftforge.eventbus.api.SubscribeEvent;
-import net.minecraftforge.fml.common.Mod;
-import vip.fubuki.playersync.util.JDBCsetUp;
+import vip.fubuki.playersync.config.JdbcConfig;
 
-import java.sql.ResultSet;
-import java.sql.SQLException;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.net.ServerSocket;
+import java.net.Socket;
+import java.util.Objects;
+import java.util.Scanner;
+import java.util.Set;
+import java.util.UUID;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
 
-@Mod.EventBusSubscriber
 public class ChatSync {
-    static int tick = 0;
-    static long current = System.currentTimeMillis();
 
-    public static void register(){}
+    static PlayerList playerList;
 
-    @SubscribeEvent
-    public static void onPlayerChat(net.minecraftforge.event.ServerChatEvent event) throws SQLException {
-        JDBCsetUp.executeUpdate("INSERT INTO chat (player, message, timestamp) VALUES ('" + event.getUsername() + "', '" + event.getRawText() + "', '" + current + "')");
+    static ServerSocket serverSocket;
+    static Socket clientSocket;
+    static Set<Socket> SocketList;
+    static ExecutorService executorService = Executors.newCachedThreadPool();
+
+    public static void register(){
+        if(JdbcConfig.IS_CHAT_SERVER.get())
+            new Thread(ChatSync::ServerSocket).start();
+        ClientSocket();
+        MinecraftForge.EVENT_BUS.register(ChatSync.class);
+    }
+
+
+    private static void ServerSocket() {
+        try {
+            serverSocket = new ServerSocket(JdbcConfig.CHAT_SERVER_PORT.get());
+            while (true) {
+                Socket newSocket = serverSocket.accept();
+                SocketList.add(newSocket);
+                executorService.submit(() -> handleClient(newSocket));
+            }
+        } catch (IOException e) {
+            e.printStackTrace();
+        } finally {
+            try {
+                serverSocket.close();
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+        }
+    }
+
+    private static void handleClient(Socket socket) {
+        try (InputStream inputStream = socket.getInputStream()) {
+            byte[] buffer = new byte[1024];
+            int bytesRead;
+            while ((bytesRead = inputStream.read(buffer)) != -1) {
+                String message = new String(buffer, 0, bytesRead);
+                broadcastMessage(socket, message);
+            }
+        } catch (IOException e) {
+            e.printStackTrace();
+        } finally {
+            SocketList.remove(socket);
+            try {
+                socket.close();
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+        }
+    }
+
+    private static void broadcastMessage(Socket sender, String message) {
+        for (Socket socket : SocketList) {
+            if (!socket.equals(sender)) {
+                try {
+                    OutputStream outputStream = socket.getOutputStream();
+                    outputStream.write(message.getBytes());
+                } catch (IOException e) {
+                    e.printStackTrace();
+                }
+            }
+        }
+    }
+
+    private static void ClientSocket() {
+        try {
+            clientSocket = new Socket(JdbcConfig.CHAT_SERVER_IP.get(), JdbcConfig.CHAT_SERVER_PORT.get());
+            Scanner scanner = new Scanner(clientSocket.getInputStream());
+            while (scanner.hasNextLine()) {
+                String line = scanner.nextLine();
+                playerList.broadcastMessage(ITextComponent.nullToEmpty(line), ChatType.CHAT, UUID.randomUUID());
+            }
+        } catch (IOException e) {
+            e.printStackTrace();
+            reconnectClient();
+        }
+    }
+
+    private static void reconnectClient() {
+       //TODO
     }
 
     @SubscribeEvent
-    public static void Tick(net.minecraftforge.event.TickEvent.ServerTickEvent event) throws SQLException {
-        tick++;
-        if(tick == 20) {
-            ReadMessage(event.getServer().getPlayerList());
-        }
+    public static void onPlayerChat(net.minecraftforge.event.ServerChatEvent event) throws IOException {
+        String message= event.getUsername()+":"+event.getMessage();
+        OutputStream outputStream = clientSocket.getOutputStream();
+        outputStream.write(message.getBytes());
     }
 
-    public static void ReadMessage(PlayerList playerList) throws SQLException {
-        ResultSet resultSet= JDBCsetUp.executeQuery("SELECT * FROM chat WHERE timestamp > " + current);
-        current = System.currentTimeMillis();
-        tick = 0;
-        while(resultSet.next()) {
-            String player = resultSet.getString("player");
-            String message = resultSet.getString("message");
-            Component textComponents = Component.literal(player+": "+message);
-            playerList.broadcastSystemMessage(textComponents, true);
+    @SubscribeEvent
+    public static void onPlayerJoin(PlayerEvent.PlayerLoggedInEvent event){
+        playerList= Objects.requireNonNull(event.getEntity().getServer()).getPlayerList();
     }
-        resultSet.close();
+
+    @SubscribeEvent
+    public static void onPlayerLeave(PlayerEvent.PlayerLoggedOutEvent event){
+        playerList= Objects.requireNonNull(event.getEntity().getServer()).getPlayerList();
     }
 }

src/main/java/vip/fubuki/playersync/sync/ModsSupport.java

@@ -1,9 +1,9 @@
 package vip.fubuki.playersync.sync;
 
 import com.mojang.brigadier.exceptions.CommandSyntaxException;
-import net.minecraft.nbt.NbtUtils;
-import net.minecraft.world.entity.player.Player;
-import net.minecraft.world.item.ItemStack;
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.item.ItemStack;
+import net.minecraft.nbt.JsonToNBT;
 import net.minecraftforge.common.util.LazyOptional;
 import net.minecraftforge.fml.ModList;
 import net.minecraftforge.items.IItemHandlerModifiable;
@@ -15,15 +15,17 @@ import java.sql.SQLException;
 import java.util.HashMap;
 import java.util.Map;
 
-@SuppressWarnings({"InstantiationOfUtilityClass", "AccessStaticViaInstance"})
+
 public class ModsSupport {
 
-    public void onPlayerJoin(Player player) throws SQLException, ClassNotFoundException, InstantiationException, IllegalAccessException {
+    public void onPlayerJoin(PlayerEntity player) throws SQLException {
         if (ModList.get().isLoaded("curios")) {
-           //TODO curios support
-            top.theillusivec4.curios.api.CuriosApi CuriosApi = new top.theillusivec4.curios.api.CuriosApi();
-            LazyOptional<IItemHandlerModifiable> itemHandler = CuriosApi.getCuriosHelper().getEquippedCurios(player);
-            ResultSet resultSet = JDBCsetUp.executeQuery("SELECT curios_item FROM curios WHERE uuid = '"+player.getUUID()+"'");
+            /*
+              Curios Support
+             */
+            LazyOptional<IItemHandlerModifiable> itemHandler = top.theillusivec4.curios.api.CuriosApi.getCuriosHelper().getEquippedCurios(player);
+            JDBCsetUp.QueryResult queryResult=JDBCsetUp.executeQuery("SELECT curios_item FROM curios WHERE uuid = '"+player.getUUID()+"';");
+            ResultSet resultSet = queryResult.getResultSet();
             if(resultSet.next()) {
                 String curios_data=resultSet.getString("curios_item");
                 if(curios_data.length()>2) {
@@ -32,7 +34,7 @@ public class ModsSupport {
                         for (int i = 0; i < handler.getSlots(); i++) {
                             try {
                                 if (curios.get(i) == null) continue;
-                                handler.setStackInSlot(i, ItemStack.of(NbtUtils.snbtToStructure(curios.get(i).replace("|", ","))));
+                                handler.setStackInSlot(i, ItemStack.of(JsonToNBT.parseTag(curios.get(i).replace("|", ",").replace("^","\"").replace("<","{").replace(">","}").replace("~", "'"))));
                             } catch (CommandSyntaxException e) {
                                 throw new RuntimeException(e);
                             }
@@ -40,26 +42,26 @@ public class ModsSupport {
                     });
                 }
                     resultSet.close();
+                    queryResult.getConnection().close();
             }else{
                 StoreCurios(player,true);
             }
         }
     }
 
-    public void onPlayerLeave(Player player) throws SQLException, ClassNotFoundException, InstantiationException, IllegalAccessException {
+    public void onPlayerLeave(PlayerEntity player) throws SQLException {
         if (ModList.get().isLoaded("curios")) {
            StoreCurios(player, false);
         }
     }
 
-    public void StoreCurios(Player player,boolean init) throws SQLException, ClassNotFoundException, InstantiationException, IllegalAccessException {
-        top.theillusivec4.curios.api.CuriosApi CuriosApi = new top.theillusivec4.curios.api.CuriosApi();
-        LazyOptional<IItemHandlerModifiable> itemHandler = CuriosApi.getCuriosHelper().getEquippedCurios(player);
+    public void StoreCurios(PlayerEntity player,boolean init) throws SQLException {
+        LazyOptional<IItemHandlerModifiable> itemHandler = top.theillusivec4.curios.api.CuriosApi.getCuriosHelper().getEquippedCurios(player);
         Map<Integer, String> curios = new HashMap<>();
         itemHandler.ifPresent(handler -> {
             for (int i = 0; i < handler.getSlots(); i++) {
                 if (!handler.getStackInSlot(i).isEmpty()) {
-                    String sNBT= handler.getStackInSlot(i).serializeNBT().toString().replace(",", "|");
+                    String sNBT= VanillaSync.serialize(handler.getStackInSlot(i).serializeNBT().toString());
                     curios.put(i, sNBT);
                 }
             }

src/main/java/vip/fubuki/playersync/sync/VanillaSync.java

@@ -1,20 +1,22 @@
 package vip.fubuki.playersync.sync;
 
 import com.mojang.brigadier.exceptions.CommandSyntaxException;
-import net.minecraft.nbt.CompoundTag;
-import net.minecraft.nbt.NbtUtils;
-import net.minecraft.network.chat.Component;
-import net.minecraft.server.level.ServerPlayer;
-import net.minecraft.world.effect.MobEffect;
-import net.minecraft.world.effect.MobEffectInstance;
-import net.minecraft.world.entity.player.Inventory;
-import net.minecraft.world.entity.player.Player;
-import net.minecraft.world.item.ItemStack;
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.entity.player.PlayerInventory;
+import net.minecraft.entity.player.ServerPlayerEntity;
+import net.minecraft.item.ItemStack;
+import net.minecraft.nbt.CompoundNBT;
+import net.minecraft.nbt.JsonToNBT;
+import net.minecraft.potion.Effect;
+import net.minecraft.potion.EffectInstance;
+import net.minecraft.util.Hand;
+import net.minecraft.util.text.StringTextComponent;
 import net.minecraftforge.api.distmarker.Dist;
+import net.minecraftforge.event.TickEvent;
 import net.minecraftforge.event.entity.player.PlayerEvent;
-import net.minecraftforge.event.server.ServerStoppedEvent;
 import net.minecraftforge.eventbus.api.SubscribeEvent;
 import net.minecraftforge.fml.common.Mod;
+import net.minecraftforge.fml.event.server.FMLServerStoppedEvent;
 import vip.fubuki.playersync.config.JdbcConfig;
 import vip.fubuki.playersync.util.JDBCsetUp;
 import vip.fubuki.playersync.util.LocalJsonUtil;
@@ -39,38 +41,40 @@ public class VanillaSync {
 
     static ExecutorService executorService = Executors.newCachedThreadPool(new PSThreadPoolFactory("PlayerSync"));
 
-    public static void doPlayerJoin(PlayerEvent.PlayerLoggedInEvent event) throws SQLException, ClassNotFoundException, InstantiationException, IllegalAccessException, CommandSyntaxException, IOException {
+    public static void doPlayerJoin(PlayerEvent.PlayerLoggedInEvent event) throws SQLException, CommandSyntaxException, IOException {
         String player_uuid = event.getEntity().getUUID().toString();
-        ResultSet resultSet=JDBCsetUp.executeQuery("SELECT online, last_server FROM player_data WHERE uuid='"+player_uuid+"'");
-        ServerPlayer serverPlayer = (ServerPlayer) event.getEntity();
+        JDBCsetUp.QueryResult queryResult=JDBCsetUp.executeQuery("SELECT online, last_server FROM player_data WHERE uuid='"+player_uuid+"';");
+        ResultSet resultSet=queryResult.getResultSet();
+        ServerPlayerEntity serverPlayer = (ServerPlayerEntity) event.getEntity();
         if(!resultSet.next()){
-            Store(event.getEntity(),true,Dist.CLIENT.isDedicatedServer());
+            store(event.getPlayer(),true,Dist.CLIENT.isDedicatedServer());
             return;
         }
         boolean online = resultSet.getBoolean("online");
         int lastServer = resultSet.getInt("last_server");
-        resultSet=JDBCsetUp.executeQuery("SELECT * FROM player_data WHERE uuid='"+player_uuid+"'");
-        if(online) {
+        queryResult=JDBCsetUp.executeQuery("SELECT * FROM player_data WHERE uuid='"+player_uuid+"'");
+        resultSet= queryResult.getResultSet();
+        if(online && lastServer != JdbcConfig.SERVER_ID.get()) {
 
-            ResultSet getServerInfo = JDBCsetUp.executeQuery("SELECT last_update,enable FROM server_info WHERE id='"+lastServer+"'");
+            queryResult=JDBCsetUp.executeQuery("SELECT last_update,enable FROM server_info WHERE id='"+lastServer+"';");
+            ResultSet getServerInfo = queryResult.getResultSet();
             if(getServerInfo.next()){
                 long last_update = getServerInfo.getLong("last_update");
                 boolean enable = getServerInfo.getBoolean("enable");
                 if(enable && System.currentTimeMillis() < last_update + 300000.0){
                     event.getEntity().removeTag("player_synced");
-                    serverPlayer.connection.disconnect(Component.translatable("playersync.already_online"));
+                    serverPlayer.connection.disconnect(new StringTextComponent("playersync.already_online"));
                     return;
                 }
-                JDBCsetUp.executeUpdate("UPDATE server_info SET enable=false WHERE id=" + lastServer);
+                JDBCsetUp.executeUpdate("UPDATE server_info SET enable= '0' WHERE id=" + lastServer);
             }
 
             getServerInfo.close();
 
 
-
         }
         JDBCsetUp.executeUpdate("UPDATE server_info SET last_update=" + System.currentTimeMillis() + " WHERE id=" + JdbcConfig.SERVER_ID.get());
-        JDBCsetUp.executeUpdate("UPDATE player_data SET online=true,last_server=" + JdbcConfig.SERVER_ID.get() + " WHERE uuid='"+player_uuid+"'");
+        JDBCsetUp.executeUpdate("UPDATE player_data SET online= '1',last_server=" + JdbcConfig.SERVER_ID.get() + " WHERE uuid='"+player_uuid+"'");
         if(resultSet.next()) {
             //Easy Part
             serverPlayer.setHealth(resultSet.getInt("health"));
@@ -80,23 +84,27 @@ public class VanillaSync {
             serverPlayer.experienceProgress=0;
             serverPlayer.giveExperiencePoints(resultSet.getInt("xp"));
             serverPlayer.setScore(resultSet.getInt("score"));
+            //Left Hand
+            serverPlayer.setItemInHand(Hand.OFF_HAND,ItemStack.of(JsonToNBT.parseTag(resultSet.getString("left_hand").replace("|",",").replace("^","\"").replace("<","{").replace(">","}").replace("~", "'"))));
+            //Cursor
+            serverPlayer.inventory.setCarried(ItemStack.of(JsonToNBT.parseTag(resultSet.getString("cursors").replace("|",",").replace("^","\"").replace("<","{").replace(">","}").replace("~", "'"))));
             //Equipment
             String armor_data=resultSet.getString("armor");
             if(armor_data.length()>2) {
                 Map<Integer, String> equipment = LocalJsonUtil.StringToEntryMap(armor_data);
                 for (Map.Entry<Integer, String> entry : equipment.entrySet()) {
-                    serverPlayer.getInventory().armor.set(entry.getKey(), Deserialize(entry));
+                    serverPlayer.inventory.armor.set(entry.getKey(), deserialize(entry));
                 }
             }
             //Inventory
             Map<Integer,String> inventory = LocalJsonUtil.StringToEntryMap(resultSet.getString("inventory"));
             for (Map.Entry<Integer, String> entry : inventory.entrySet()) {
-                serverPlayer.getInventory().setItem(entry.getKey(),Deserialize(entry));
+                serverPlayer.inventory.setItem(entry.getKey(),deserialize(entry));
             }
             //Ender chest
             Map<Integer,String> ender_chest = LocalJsonUtil.StringToEntryMap(resultSet.getString("enderchest"));
             for (Map.Entry<Integer, String> entry : ender_chest.entrySet()) {
-                serverPlayer.getEnderChestInventory().setItem(entry.getKey(),Deserialize(entry));
+                serverPlayer.getEnderChestInventory().setItem(entry.getKey(),deserialize(entry));
             }
             //Effects
             String effectData=resultSet.getString("effects");
@@ -104,9 +112,8 @@ public class VanillaSync {
                 serverPlayer.removeAllEffects();
                 Map<Integer, String> effects = LocalJsonUtil.StringToEntryMap(effectData);
                 for (Map.Entry<Integer, String> entry : effects.entrySet()) {
-                    CompoundTag effectTag = NbtUtils.snbtToStructure(entry.getValue().replace("|", ","));
-                    MobEffectInstance mobEffectInstance = MobEffectInstance.load(effectTag);
-                    assert mobEffectInstance != null;
+                    CompoundNBT effectTag = JsonToNBT.parseTag(entry.getValue().replace("|", ","));
+                    EffectInstance mobEffectInstance = EffectInstance.load(effectTag);
                     serverPlayer.addEffect(mobEffectInstance);
                 }
             }
@@ -120,7 +127,7 @@ public class VanillaSync {
                 byte [] bytes=resultSet.getString("advancements").getBytes();
                 Files.write(advancements.toPath(),bytes);
             }else{
-                File[] files= ScanAdvancementsFile(player_uuid, gameDir);
+                File[] files= scanAdvancementsFile(player_uuid, gameDir);
                 for (File file : files) {
                     if(file==null) continue;
                     byte [] bytes=resultSet.getString("advancements").getBytes();
@@ -137,7 +144,7 @@ public class VanillaSync {
     }
 
     @SubscribeEvent
-    public static void OnPlayerJoin(PlayerEvent.PlayerLoggedInEvent event){
+    public static void onPlayerJoin(PlayerEvent.PlayerLoggedInEvent event){
         executorService.submit(()->{
             try {
                 doPlayerJoin(event);
@@ -148,19 +155,20 @@ public class VanillaSync {
 
     }
 
-    private static ItemStack Deserialize(Map.Entry<Integer, String> entry) throws CommandSyntaxException {
+    public static ItemStack deserialize(Map.Entry<Integer, String> entry) throws CommandSyntaxException {
         String nbt= entry.getValue().replace("|",",").replace("^","\"").replace("<","{").replace(">","}").replace("~", "'");
-        CompoundTag compoundTag = NbtUtils.snbtToStructure(nbt);
+        CompoundNBT compoundTag = JsonToNBT.parseTag(nbt);
         return ItemStack.of(compoundTag);
     }
 
-    public static void doPlayerSaveToFile(PlayerEvent.SaveToFile event) throws SQLException, IOException, ClassNotFoundException, InstantiationException, IllegalAccessException {
+    public static String serialize(String object){
+        return object.replace(",","|").replace("\"","^").replace("{","<").replace("}",">").replace("'","~");
+    }
+
+    public static void doPlayerSaveToFile(PlayerEvent.SaveToFile event) throws SQLException, IOException {
         JDBCsetUp.executeUpdate("UPDATE server_info SET last_update=" + System.currentTimeMillis() + " WHERE id=" + JdbcConfig.SERVER_ID.get());
         if(!event.getEntity().getTags().contains("player_synced")) return;
-        Store(event.getEntity(),false,Dist.CLIENT.isDedicatedServer());
-        //Mod support
-        ModsSupport modsSupport = new ModsSupport();
-        modsSupport.onPlayerLeave(event.getEntity());
+        store(event.getPlayer(),false,Dist.CLIENT.isDedicatedServer());
     }
 
     @SubscribeEvent
@@ -175,19 +183,18 @@ public class VanillaSync {
     }
 
     @SubscribeEvent
-    public static void onServerShutdown(ServerStoppedEvent event) throws SQLException {
-        JDBCsetUp.executeUpdate("UPDATE server_info SET enable=false WHERE id=" + JdbcConfig.SERVER_ID.get());
+    public static void onServerShutdown(FMLServerStoppedEvent event) throws SQLException {
+        JDBCsetUp.executeUpdate("UPDATE server_info SET enable= '0' WHERE id=" + JdbcConfig.SERVER_ID.get()+";");
     }
 
-    public static void doPlayerLogout(PlayerEvent.PlayerLoggedOutEvent event) throws SQLException, ClassNotFoundException, InstantiationException, IllegalAccessException, IOException {
+    public static void doPlayerLogout(PlayerEvent.PlayerLoggedOutEvent event) throws SQLException, IOException {
         if(!event.getEntity().getTags().contains("player_synced")) return;
         String player_uuid = event.getEntity().getUUID().toString();
-        JDBCsetUp.executeUpdate("UPDATE player_data SET online=false WHERE uuid='"+player_uuid+"'");
-        Store(event.getEntity(),false,Dist.CLIENT.isDedicatedServer());
+        JDBCsetUp.executeUpdate("UPDATE player_data SET online= '0' WHERE uuid='"+player_uuid+"';");
+        store(event.getPlayer(),false,Dist.CLIENT.isDedicatedServer());
         //Mod support
         ModsSupport modsSupport = new ModsSupport();
-        modsSupport.onPlayerLeave(event.getEntity());
-        event.getEntity().removeTag("player_synced");
+        modsSupport.onPlayerLeave(event.getPlayer());
     }
 
     @SubscribeEvent
@@ -202,39 +209,43 @@ public class VanillaSync {
 
     }
 
-    public static void Store(Player player, boolean init,boolean isServer) throws SQLException, IOException {
+    public static void store(PlayerEntity player, boolean init, boolean isServer) throws SQLException, IOException {
         String player_uuid = player.getUUID().toString();
         //Easy part
         int XP = player.totalExperience;
         int score=player.getScore();
         int food_level=player.getFoodData().getFoodLevel();
         int health=(int) player.getHealth();
+        //Left hand
+        String left_hand = serialize(player.getItemInHand(Hand.OFF_HAND).serializeNBT().toString());
+        //Cursor
+        String cursors = serialize(player.inventory.getCarried().serializeNBT().toString());
         //Equipment
         Map<Integer,String> equipment =new HashMap<>() ;
-        for (int i = 0; i < player.getInventory().armor.size(); i++) {
-            ItemStack itemStack = player.getInventory().armor.get(i);
+        for (int i = 0; i < player.inventory.armor.size(); i++) {
+            ItemStack itemStack = player.inventory.armor.get(i);
             if(itemStack.isEmpty()) continue;
-            equipment.put(i,itemStack.serializeNBT().toString().replace(",","|").replace("\"","^").replace("{","<").replace("}",">").replace("'","~"));
+            equipment.put(i,serialize(itemStack.serializeNBT().toString()));
         }
         //inventory
-        Inventory inventory = player.getInventory();
+        PlayerInventory inventory = player.inventory;
         Map<Integer,String> inventoryMap = new HashMap<>();
         for (int i = 0; i < inventory.items.size(); i++) {
-            CompoundTag itemNBT = inventory.items.get(i).serializeNBT();
-            inventoryMap.put(i,itemNBT.toString().replace(",","|").replace("\"","^").replace("{","<").replace("}",">").replace("'","~"));
+            CompoundNBT itemNBT = inventory.items.get(i).serializeNBT();
+            inventoryMap.put(i,serialize(itemNBT.toString()));
         }
         //EnderChest
         Map<Integer, String> ender_chest = new HashMap<>();
         for (int i=0;i< player.getEnderChestInventory().getContainerSize();i++) {
-            CompoundTag itemNBT = player.getEnderChestInventory().getItem(i).serializeNBT();
-            ender_chest.put(i,itemNBT.toString().replace(",","|").replace("\"","^").replace("{","<").replace("}",">").replace("'","~"));
+            CompoundNBT itemNBT = player.getEnderChestInventory().getItem(i).serializeNBT();
+            ender_chest.put(i,serialize(itemNBT.toString()));
         }
         //Effects
-        Map<MobEffect,MobEffectInstance> effects= player.getActiveEffectsMap();
+        Map<Effect, EffectInstance> effects= player.getActiveEffectsMap();
         Map<Integer,String> effectMap=new HashMap<>();
-        for (Map.Entry<MobEffect, MobEffectInstance> entry : effects.entrySet()) {
-            CompoundTag effectTag= entry.getValue().save(new CompoundTag());
-            effectMap.put(MobEffect.getId(entry.getKey()),effectTag.toString().replace(",","|"));
+        for (Map.Entry<Effect, EffectInstance> entry : effects.entrySet()) {
+            CompoundNBT effectTag= entry.getValue().save(new CompoundNBT());
+            effectMap.put(Effect.getId(entry.getKey()),effectTag.toString().replace(",","|"));
         }
         //Advancements
         //File root = serverPlayer.getServer().getServerDirectory();
@@ -244,7 +255,7 @@ public class VanillaSync {
             advancements = new File(gameDir, JdbcConfig.SYNC_WORLD.get().get(0)+"/advancements"+"/"+player_uuid+".json");
         }else{
 //            File gameDir = Minecraft.getInstance().gameDirectory;
-            File[] files=ScanAdvancementsFile(player_uuid, gameDir);
+            File[] files= scanAdvancementsFile(player_uuid, gameDir);
             //Get LastModified
             long latestModifiedDate = 0;
             for (File file : files) {
@@ -263,11 +274,11 @@ public class VanillaSync {
 
         //SQL Operation
         if(init){
-            JDBCsetUp.executeUpdate("INSERT INTO player_data (uuid,armor,inventory,enderchest,advancements,effects,xp,food_level,health,score,online) VALUES ('"+player_uuid+"','"+equipment+"','"+inventoryMap+"','"+ender_chest+"','"+advancements+"','"+effectMap+"','"+XP+"','"+food_level+"','"+health+"','"+score+"',online=true)");
-        }else JDBCsetUp.executeUpdate("UPDATE player_data SET inventory = '"+inventoryMap+"',armor='"+equipment+"' ,xp='"+XP+"',effects='"+effectMap+"',enderchest='"+ender_chest+"',score='"+score+"',food_level='"+food_level+"',health='"+health+"',advancements='"+json+"' WHERE uuid = '"+player_uuid+"'");
+            JDBCsetUp.executeUpdate("INSERT INTO player_data (uuid,armor,inventory,enderchest,advancements,effects,xp,food_level,health,score,left_hand,cursors,online) VALUES ('"+player_uuid+"','"+equipment+"','"+inventoryMap+"','"+ender_chest+"','"+advancements+"','"+effectMap+"','"+XP+"','"+food_level+"','"+health+"','"+score+"','"+left_hand+"','"+cursors+"',online=true)");
+        }else JDBCsetUp.executeUpdate("UPDATE player_data SET inventory = '"+inventoryMap+"',armor='"+equipment+"' ,xp='"+XP+"',effects='"+effectMap+"',enderchest='"+ender_chest+"',score='"+score+"',food_level='"+food_level+"',health='"+health+"',advancements='"+json+"',left_hand='"+left_hand+"',cursors='"+cursors+"' WHERE uuid = '"+player_uuid+"'");
     }
 
-    private static File[] ScanAdvancementsFile(String player_uuid, File gameDir) {
+    private static File[] scanAdvancementsFile(String player_uuid, File gameDir) {
         File[] files = new File[JdbcConfig.SYNC_WORLD.get().size()];
         for (int i = 0; i < JdbcConfig.SYNC_WORLD.get().size(); i++) {
             File advanceFile=new File(gameDir, "saves/"+JdbcConfig.SYNC_WORLD.get().get(i)+"/advancements"+"/"+player_uuid+".json");
@@ -277,15 +288,17 @@ public class VanillaSync {
         return files;
     }
 
-//    @SubscribeEvent
-//    public void RegisterCommand(RegisterCommandsEvent event){
-//        CommandDispatcher<CommandSourceStack> dispatcher=event.getDispatcher();
-//        LiteralCommandNode<CommandSourceStack> cmd = dispatcher.register(
-//                Commands.literal("serializeNBT").executes(context -> {context.getSource().sendSuccess(Component.literal(context.getSource().getPlayer().getItemInHand(InteractionHand.MAIN_HAND).serializeNBT().toString()),true);
-//                    return 0;
-//                })
-//        );
-//    }
+    static int tick = 0;
+
+    @SubscribeEvent
+    public static void onUpdate(TickEvent.ServerTickEvent event) throws SQLException {
+        tick++;
+        if(tick == 1800) {
+            tick=0;
+            long current = System.currentTimeMillis();
+            JDBCsetUp.executeUpdate("UPDATE server_info SET last_update ="+current+" WHERE id= "+ JdbcConfig.SERVER_ID.get());
+        }
+    }
 
 }
 

src/main/java/vip/fubuki/playersync/util/JDBCsetUp.java

@@ -1,7 +1,5 @@
 package vip.fubuki.playersync.util;
 
-import com.zaxxer.hikari.HikariConfig;
-import com.zaxxer.hikari.HikariDataSource;
 import vip.fubuki.playersync.config.JdbcConfig;
 
 import java.sql.*;
@@ -9,40 +7,73 @@ import java.sql.*;
 
 public class JDBCsetUp {
 
-    private static HikariDataSource dataSource;
-
-    public static void initDataSource() {
-        HikariConfig config = new HikariConfig();
-        config.setJdbcUrl("jdbc:mysql://"+JdbcConfig.HOST.get()+":"+JdbcConfig.PORT.get()+"?useUnicode=true&characterEncoding=utf-8&useSSL="+JdbcConfig.USE_SSL.get()+"&serverTimezone=UTC&allowPublicKeyRetrieval=true");
-        config.setUsername(JdbcConfig.USERNAME.get());
-        config.setPassword(JdbcConfig.PASSWORD.get());
-
-        dataSource = new HikariDataSource(config);
-    }
-
     public static Connection getConnection() throws SQLException {
-        if (dataSource == null) {
-            initDataSource();
-        }
-        return dataSource.getConnection();
+        String url= "jdbc:mysql://"+JdbcConfig.HOST.get()+":"+JdbcConfig.PORT.get()+"?useUnicode=true&characterEncoding=utf-8&useSSL="+JdbcConfig.USE_SSL.get()+"&serverTimezone=UTC&allowPublicKeyRetrieval=true";
+        return DriverManager.getConnection(url, JdbcConfig.USERNAME.get(), JdbcConfig.PASSWORD.get());
     }
 
-    public static ResultSet executeQuery(String sql) throws SQLException{
-        try (Connection connection = getConnection();
-             PreparedStatement preparedStatement = connection.prepareStatement(sql)) {
-            return preparedStatement.executeQuery();
+    public static QueryResult executeQuery(String sql) throws SQLException{
+        Connection connection = getConnection();
+
+        try (Statement useStatement = connection.createStatement()) {
+            useStatement.execute("USE " + JdbcConfig.DATABASE_NAME.get());
         }
+        PreparedStatement queryStatement = connection.prepareStatement(sql);
+        ResultSet resultSet = queryStatement.executeQuery();
+       return new QueryResult(connection,resultSet);
     }
 
     public static void executeUpdate(String sql) throws SQLException{
-        executeUpdate(sql,false);
+        try (Connection connection = getConnection()) {
+
+            try (Statement useStatement = connection.createStatement()) {
+                useStatement.execute("USE " + JdbcConfig.DATABASE_NAME.get());
             }
 
-    public static void executeUpdate(String sql,boolean init) throws SQLException{
-        try (Connection connection = getConnection();
-             PreparedStatement preparedStatement = connection.prepareStatement(sql)) {
-            if(!init) preparedStatement.executeUpdate("USE "+JdbcConfig.DATABASE_NAME.get());
-            preparedStatement.executeUpdate();
+            try (PreparedStatement updateStatement = connection.prepareStatement(sql)) {
+                updateStatement.executeUpdate();
+            }
+        }
+    }
+
+    public static void update(String sql, String... argument) throws SQLException{
+       Connection connection = getConnection();
+
+        try (Statement useStatement = connection.createStatement()) {
+            useStatement.execute("USE " + JdbcConfig.DATABASE_NAME.get());
+        }
+
+       PreparedStatement updateStatement = connection.prepareStatement(sql);
+       for (int i = 1; i <= argument.length; i++) {
+           updateStatement.setString(i,argument[i]);
+       }
+       updateStatement.executeUpdate();
+    }
+
+    public static void executeUpdate(String sql, int i) throws SQLException{
+        try (Connection connection = getConnection()) {
+
+            try (PreparedStatement updateStatement = connection.prepareStatement(sql)) {
+                updateStatement.executeUpdate();
+            }
+        }
+    }
+
+    public static class QueryResult{
+        private final Connection connection;
+        private final ResultSet resultSet;
+
+        public QueryResult(Connection connection, ResultSet resultSet) {
+            this.connection = connection;
+            this.resultSet = resultSet;
+        }
+
+        public Connection getConnection() {
+            return connection;
+        }
+
+        public ResultSet getResultSet() {
+            return resultSet;
         }
     }
 }

src/main/java/vip/fubuki/playersync/util/PSThreadPoolFactory.java

@@ -1,7 +1,5 @@
 package vip.fubuki.playersync.util;
 
-import org.jetbrains.annotations.NotNull;
-
 import java.util.concurrent.ThreadFactory;
 import java.util.concurrent.atomic.AtomicInteger;
 
@@ -14,7 +12,7 @@ public class PSThreadPoolFactory implements ThreadFactory {
         threadNamePrefix = Prefix;
     }
     @Override
-    public Thread newThread(@NotNull Runnable runnable) {
+    public Thread newThread(Runnable runnable) {
         Thread thread = new Thread(runnable);
         thread.setName(threadNamePrefix + "-thread-" + threadIdx.getAndIncrement());
         return thread;

src/main/resources/META-INF/mods.toml

@@ -6,7 +6,7 @@
 # The name of the mod loader type to load - for regular FML @Mod mods it should be javafml
 modLoader="javafml" #mandatory
 # A version range to match for said mod loader - for regular FML @Mod it will be the forge version
-loaderVersion="[43,)" #mandatory This is typically bumped every Minecraft version by Forge. See our download page for lists of versions.
+loaderVersion="[36,)" #mandatory This is typically bumped every Minecraft version by Forge. See our download page for lists of versions.
 # The license for you mod. This is mandatory metadata and allows for easier comprehension of your redistributive properties.
 # Review your options at https://choosealicense.com/. All rights reserved is the default copyright stance, and is thus the default here.
 license="GPL-3.0 license"
@@ -16,10 +16,7 @@ license="GPL-3.0 license"
 [[mods]] #mandatory
 # The modid of the mod
 modId="playersync" #mandatory
-# The version number of the mod - there's a few well known ${} variables useable here or just hardcode it
-# ${file.jarVersion} will substitute the value of the Implementation-Version as read from the mod's JAR file metadata
-# see the associated build.gradle script for how to populate this completely automatically during a build
-version="1.2.0" #mandatory
+version="${file.jarVersion}" #mandatory
  # A display name for the mod
 displayName="PlayerSync" #mandatory
 # A URL to query for updates for this mod. See the JSON update specification https://mcforge.readthedocs.io/en/latest/gettingstarted/autoupdate/
@@ -51,7 +48,7 @@ make multiserver players' data sync
     # Does this dependency have to exist - if not, ordering below must be specified
     mandatory=true #mandatory
     # The version range of the dependency
-    versionRange="[43,)" #mandatory
+    versionRange="[36,37)" #mandatory
     # An ordering relationship for the dependency - BEFORE or AFTER required if the relationship is not mandatory
     ordering="NONE"
     # Side this dependency is applied on - BOTH, CLIENT or SERVER
@@ -61,6 +58,6 @@ make multiserver players' data sync
     modId="minecraft"
     mandatory=true
 # This version range declares a minimum of the current minecraft version up to but not including the next major version
-    versionRange="[1.19.2,1.20)"
+    versionRange="[1.16.5,1.17)"
     ordering="NONE"
     side="BOTH"