pom.xml

@@ -68,5 +68,33 @@
             <version>1.21.1-R0.1-SNAPSHOT</version>
             <scope>provided</scope>
         </dependency>
+
+        <!-- Hibernate Core -->
+        <dependency>
+            <groupId>org.hibernate</groupId>
+            <artifactId>hibernate-core</artifactId>
+            <version>6.6.1.Final</version>
+        </dependency>
+
+        <!-- MySQL JDBC Driver -->
+        <dependency>
+            <groupId>mysql</groupId>
+            <artifactId>mysql-connector-java</artifactId>
+            <version>8.0.33</version>
+        </dependency>
+
+        <!-- JPA API -->
+        <dependency>
+            <groupId>jakarta.persistence</groupId>
+            <artifactId>jakarta.persistence-api</artifactId>
+            <version>3.0.0</version>
+        </dependency>
+
+        <!-- Hibernate Annotations -->
+        <dependency>
+            <groupId>org.hibernate.common</groupId>
+            <artifactId>hibernate-commons-annotations</artifactId>
+            <version>5.1.2.Final</version>
+        </dependency>
     </dependencies>
 </project>

src/main/java/commands/tabCompleter.java

@@ -0,0 +1,33 @@
+package commands;
+
+import org.bukkit.Bukkit;
+import org.bukkit.World;
+import org.bukkit.command.Command;
+import org.bukkit.command.CommandSender;
+import org.bukkit.command.TabCompleter;
+import org.bukkit.entity.Player;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class tabCompleter implements TabCompleter {
+
+    @Override
+    public List<String> onTabComplete(CommandSender commandSender, Command command, String s, String[] strings) {
+        List<String> completions = new ArrayList<>();
+
+        if (command.getName().equalsIgnoreCase("tpw") && commandSender.isOp()) {
+            if (strings.length == 1) {
+                for (World world : Bukkit.getWorlds()) {
+                    completions.add(world.getName());
+                }
+            } else if (strings.length == 2) {
+                for (Player player : Bukkit.getOnlinePlayers()) {
+                    completions.add(player.getName());
+                }
+            }
+        }
+
+        return completions;
+    }
+}

src/main/java/commands/teleportWorld.java

@@ -0,0 +1,62 @@
+package commands;
+
+import org.bukkit.Bukkit;
+import org.bukkit.World;
+import org.bukkit.command.Command;
+import org.bukkit.command.CommandExecutor;
+import org.bukkit.command.CommandSender;
+import org.bukkit.entity.Player;
+
+public class teleportWorld implements CommandExecutor {
+
+    // Teleports player with OP to another world.
+    @Override
+    public boolean onCommand(CommandSender commandSender, Command command, String s, String[] strings) {
+        if (commandSender instanceof Player) {
+
+            Player player = (Player) commandSender;
+
+            if (!player.isOp() || strings.length == 0) {
+                return false;
+            }
+
+            World world = Bukkit.getWorld(strings[0]);
+
+            if (world == null) {
+                player.sendMessage("This is not a valid world!");
+                return true;
+            }
+
+            if (strings.length > 1) {
+                try {
+                    Player targetPlayer = Bukkit.getPlayer(strings[1]);
+                    World targetPlayerWorld = targetPlayer.getWorld();
+
+                    if (targetPlayerWorld.equals(world)) {
+                        player.sendMessage(String.format("Player %s is already in this world!", strings[1]));
+                        return true;
+                    }
+
+                    targetPlayer.teleport(world.getSpawnLocation());
+                    targetPlayer.sendMessage(String.format("Successfully teleported %s from %s to %s.", strings[1], targetPlayerWorld.getName(), world.getName()));
+                    return true;
+                } catch (Exception e) {
+                    player.sendMessage("This is not a valid player!");
+                    return true;
+                }
+            }
+
+            World playerWorld = player.getWorld();
+
+            if (playerWorld.equals(world)) {
+                player.sendMessage("You are already in this world!");
+                return true;
+            }
+
+            player.teleport(world.getSpawnLocation());
+            player.sendMessage(String.format("Successfully teleported from %s to %s.", playerWorld.getName(), world.getName()));
+            return true;
+        }
+        return false;
+    }
+}

src/main/java/xyz/soukup/mineconomiaCoreV2/MineconomiaCoreV2.java

@@ -1,22 +1,33 @@
 package xyz.soukup.mineconomiaCoreV2;
 
+import commands.tabCompleter;
+import commands.teleportWorld;
 import org.bukkit.configuration.file.FileConfiguration;
 import org.bukkit.plugin.java.JavaPlugin;
+import xyz.soukup.mineconomiaCoreV2.database.HibernateUtil;
 import xyz.soukup.mineconomiaCoreV2.tractor.giveTractorCommand;
 
 import java.util.Objects;
 
+import static xyz.soukup.mineconomiaCoreV2.core.sharedValues.plugin;
+
 public final class MineconomiaCoreV2 extends JavaPlugin {
-    MineconomiaCoreV2 plugin = getPlugin(this.getClass());
+    private static MineconomiaCoreV2 instance;
+
+
     @Override
     public void onEnable() {
         // Plugin startup logic
+        instance = this;
         getLogger().info("STARTING MINECONOMIA CORE");
-        plugin.saveConfig();
+        plugin.saveDefaultConfig();
 
         // Tractor registration
         Objects.requireNonNull(plugin.getCommand("tractor")).setExecutor(new giveTractorCommand());
 
+        // TPW registration
+        this.getCommand("tpw").setExecutor(new teleportWorld());
+        this.getCommand("tpw").setTabCompleter(new tabCompleter());
 
 
 
@@ -25,6 +36,10 @@ public final class MineconomiaCoreV2 extends JavaPlugin {
     @Override
     public void onDisable() {
         // Plugin shutdown logic
+        HibernateUtil.shutdown();
     }
 
+    public static MineconomiaCoreV2 getInstance() {
+        return instance;
+    }
 }

src/main/java/xyz/soukup/mineconomiaCoreV2/core/sharedValues.java

@@ -1,12 +1,14 @@
 package xyz.soukup.mineconomiaCoreV2.core;
 
+import org.bukkit.Bukkit;
 import org.bukkit.configuration.file.FileConfiguration;
+import org.bukkit.plugin.java.JavaPlugin;
 import xyz.soukup.mineconomiaCoreV2.MineconomiaCoreV2;
 
 import java.util.logging.Logger;
 
 public class sharedValues {
-    public static MineconomiaCoreV2 plugin = MineconomiaCoreV2.getPlugin(MineconomiaCoreV2.class);
+    public static MineconomiaCoreV2 plugin = MineconomiaCoreV2.getInstance();
     public static FileConfiguration config = plugin.getConfig();
     public static Logger logger = plugin.getLogger();
 }

src/main/java/xyz/soukup/mineconomiaCoreV2/database/HibernateUtil.java

@@ -0,0 +1,113 @@
+package xyz.soukup.mineconomiaCoreV2.database;
+
+import jakarta.persistence.Query;
+import jakarta.persistence.criteria.CriteriaBuilder;
+import jakarta.persistence.criteria.CriteriaQuery;
+import org.bukkit.scoreboard.Criteria;
+import org.hibernate.Session;
+import org.hibernate.SessionFactory;
+import org.hibernate.Transaction;
+import org.hibernate.boot.MetadataSources;
+import org.hibernate.boot.model.internal.QueryBinder;
+import org.hibernate.boot.registry.StandardServiceRegistry;
+import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
+import xyz.soukup.mineconomiaCoreV2.core.sharedValues;
+import xyz.soukup.mineconomiaCoreV2.variables.PlayerData;
+
+import java.util.List;
+import java.util.Objects;
+import java.util.Properties;
+
+import static xyz.soukup.mineconomiaCoreV2.core.sharedValues.config;
+import static xyz.soukup.mineconomiaCoreV2.core.sharedValues.logger;
+
+public class HibernateUtil {
+    private static SessionFactory sessionFactory;
+
+    static {
+
+        try {
+
+            StandardServiceRegistry registry = new StandardServiceRegistryBuilder()
+                    .applySettings(getHibernateProperties())
+                    .build();
+
+            sessionFactory = new MetadataSources(registry)
+                    .addAnnotatedClass(PlayerData.class)
+                    .buildMetadata()
+                    .buildSessionFactory();
+
+        } catch (Exception e) {
+
+            sharedValues.logger.warning(e.toString());
+
+            if (sessionFactory != null) {
+                sessionFactory.close();
+            }
+
+        }
+    }
+
+
+    private static Properties getHibernateProperties() {
+
+        String host = config.getString("database.host");
+        String port = config.getString("database.port");
+        String user = config.getString("database.user");
+        String password = config.getString("database.password");
+        String database = config.getString("database.database");
+
+        String jdbcString = "jdbc:mysql://" + host + ":" + port + "/" + database;
+
+        Properties properties = new Properties();
+        properties.put("hibernate.dialect", "org.hibernate.dialect.MySQLDialect");
+        properties.put("hibernate.connection.driver_class", "com.mysql.cj.jdbc.Driver");
+        properties.put("hibernate.connection.url", jdbcString);
+        properties.put("hibernate.connection.username", user);
+        properties.put("hibernate.connection.password", password);
+        properties.put("hibernate.hbm2ddl.auto", "update");
+        properties.put("hibernate.show_sql", "true");
+        return properties;
+    }
+
+
+    public static SessionFactory getSessionFactory() {
+        return sessionFactory;
+    }
+
+    public static Session newSession(){
+        return getSessionFactory().openSession();
+    }
+
+    public static void shutdown() {
+        if (sessionFactory != null) {
+            sessionFactory.close();
+        }
+    }
+
+
+    public static void saveToDatabase(Object object){
+
+        Session session = HibernateUtil.newSession();
+        Transaction transaction = null;
+
+        try {
+
+            transaction = session.beginTransaction();
+            session.persist(object);
+            transaction.commit();
+            session.close();
+
+        }catch (Exception e){
+
+            if (transaction != null) {
+                transaction.rollback(); // Rollback if something goes wrong
+            }
+
+            logger.warning(e.toString());
+        }
+    }
+
+
+
+}

src/main/java/xyz/soukup/mineconomiaCoreV2/database/PlayerDataDatabase.java

@@ -0,0 +1,18 @@
+package xyz.soukup.mineconomiaCoreV2.database;
+
+import jakarta.persistence.criteria.CriteriaBuilder;
+import xyz.soukup.mineconomiaCoreV2.variables.PlayerData;
+
+
+public class PlayerDataDatabase {
+
+    public static void savePlayerDataToDatabase(PlayerData playerData){
+        HibernateUtil.saveToDatabase(playerData);
+    }
+
+    public static PlayerData getPlayerDataFromDatabase(String nickname){
+        CriteriaBuilder criteriaBuilder = HibernateUtil.newSession().getCriteriaBuilder();
+        return null;
+    }
+
+}

src/main/java/xyz/soukup/mineconomiaCoreV2/database/PlayerInit.java

@@ -0,0 +1,5 @@
+package xyz.soukup.mineconomiaCoreV2.database;
+
+public class PlayerInit {
+    public static void onJoin(){}
+}

src/main/java/xyz/soukup/mineconomiaCoreV2/tools/LangManager.java

@@ -1,12 +1,11 @@
-package xyz.soukup.mineconomiaCoreV2.core;
+package xyz.soukup.mineconomiaCoreV2.tools;
 
 import org.bukkit.configuration.file.YamlConfiguration;
-import org.bukkit.inventory.Inventory;
 
 import static xyz.soukup.mineconomiaCoreV2.core.sharedValues.config;
 import static xyz.soukup.mineconomiaCoreV2.core.sharedValues.plugin;
 
-public class MsgRetriever {
+public class LangManager {
 
     public static YamlConfiguration lang = null;
     public static void  loadLang(){

src/main/java/xyz/soukup/mineconomiaCoreV2/tools/PDC.java

@@ -1,4 +1,4 @@
-package xyz.soukup.mineconomiaCoreV2.core;
+package xyz.soukup.mineconomiaCoreV2.tools;
 
 import org.bukkit.NamespacedKey;
 import org.bukkit.block.TileState;
@@ -6,6 +6,7 @@ import org.bukkit.entity.Player;
 import org.bukkit.inventory.meta.ItemMeta;
 import org.bukkit.persistence.PersistentDataContainer;
 import org.bukkit.persistence.PersistentDataType;
+import xyz.soukup.mineconomiaCoreV2.core.sharedValues;
 
 //funkce pro lehčí manipulaci s minecraft PDC (trvalé uchovávání dat v entitách, itemech a blocích)
 public class PDC {

src/main/java/xyz/soukup/mineconomiaCoreV2/tools/inventoryTools.java

@@ -1,4 +1,4 @@
-package tools;
+package xyz.soukup.mineconomiaCoreV2.tools;
 
 import org.bukkit.inventory.Inventory;
 import org.bukkit.inventory.ItemStack;

src/main/java/xyz/soukup/mineconomiaCoreV2/variables/PlayerData.java

@@ -0,0 +1,61 @@
+package xyz.soukup.mineconomiaCoreV2.variables;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+
+//Definování Member classy pro databázi a další manipulace
+
+@Entity
+public class PlayerData {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private int id;
+
+    private String nickname;
+    private String uuid;
+    private int online;
+    private float money;
+
+    public int getId() {
+        return id;
+    }
+
+    public void setId(int id) {
+        this.id = id;
+    }
+
+    public String getNickname() {
+        return nickname;
+    }
+
+    public void setNickname(String nickname) {
+        this.nickname = nickname;
+    }
+
+    public String getUuid() {
+        return uuid;
+    }
+
+    public void setUuid(String uuid) {
+        this.uuid = uuid;
+    }
+
+    public int getOnline() {
+        return online;
+    }
+
+    public void setOnline(int online) {
+        this.online = online;
+    }
+
+    public float getMoney() {
+        return money;
+    }
+
+    public void setMoney(float money) {
+        this.money = money;
+    }
+}

src/main/resources/config.yml

@@ -1,2 +1,8 @@
 version: 1.0
-language: "czech.yml"
+language: "czech.yml"
+database:
+  host: localhost
+  port: 3306
+  user: mcore
+  password: mcore
+  database: mcore

src/main/resources/plugin.yml

@@ -3,5 +3,8 @@ version: '1.0-SNAPSHOT'
 main: xyz.soukup.mineconomiaCoreV2.MineconomiaCoreV2
 api-version: '1.21'
 commands:
+  tpw:
+    description: "Teleportuje tě do jiného světa"
+    usage: /<command> [arguments]
   tractor:
     description: "blieat"