(Skoro) hotový island systém

pom.xml

@@ -87,6 +87,10 @@
     </build>
 
     <repositories>
+        <repository>
+            <id>codemc-releases</id>
+            <url>https://repo.codemc.io/repository/maven-releases/</url>
+        </repository>
         <repository>
             <id>is-releases</id>
             <url>https://repo.infernalsuite.com/repository/maven-releases/</url>
@@ -103,6 +107,10 @@
             <id>jitpack.io</id>
             <url>https://jitpack.io</url>
         </repository>
+
+        <!-- PacketEvents is commonly consumed via CodeMC. If this repo isn't in your environment,
+             tell me and I’ll give you the exact repo you prefer (jitpack/shade/plugin). -->
+
     </repositories>
 
     <dependencies>
@@ -143,5 +151,11 @@
             <artifactId>MatrixColorAPI</artifactId>
             <version>v1.0.7</version>
         </dependency>
+        <dependency>
+            <groupId>com.github.retrooper</groupId>
+            <artifactId>packetevents-spigot</artifactId>
+            <version>2.11.2</version>
+            <scope>provided</scope>
+        </dependency>
     </dependencies>
 </project>

src/main/java/xyz/soukup/ecoCraftCore/EcoCraftCore.java

@@ -1,21 +1,31 @@
 package xyz.soukup.ecoCraftCore;
 
+import com.github.retrooper.packetevents.event.EventManager;
+import com.github.retrooper.packetevents.event.PacketListenerPriority;
+import com.infernalsuite.asp.api.AdvancedSlimePaperAPI;
+import com.infernalsuite.asp.api.world.SlimeWorldInstance;
 import com.j256.ormlite.dao.DaoManager;
 import com.j256.ormlite.jdbc.JdbcConnectionSource;
+import com.j256.ormlite.stmt.UpdateBuilder;
 import com.j256.ormlite.support.ConnectionSource;
 import com.j256.ormlite.table.TableUtils;
+import io.github.retrooper.packetevents.factory.spigot.SpigotPacketEventsBuilder;
 import io.papermc.paper.plugin.lifecycle.event.LifecycleEventManager;
+import org.bukkit.Bukkit;
+import org.bukkit.World;
+import org.bukkit.configuration.file.FileConfiguration;
+import org.bukkit.metadata.FixedMetadataValue;
 import org.bukkit.plugin.Plugin;
 import org.bukkit.plugin.PluginManager;
 import org.bukkit.plugin.java.JavaPlugin;
 import org.jetbrains.annotations.NotNull;
+import xyz.soukup.ecoCraftCore.database.objects.*;
+import xyz.soukup.ecoCraftCore.islands.IslandCommand;
 import xyz.soukup.ecoCraftCore.money.MoneyCommand;
 import xyz.soukup.ecoCraftCore.player.PreparePlayer;
+import xyz.soukup.ecoCraftCore.player.TeleportRequestsHandler;
 import xyz.soukup.ecoCraftCore.positionMarker.RulerCommand;
 import xyz.soukup.ecoCraftCore.shop.ShopCommand;
-import xyz.soukup.ecoCraftCore.database.objects.Account;
-import xyz.soukup.ecoCraftCore.database.objects.Shop;
-import xyz.soukup.ecoCraftCore.database.objects.Transaction;
 import io.papermc.paper.plugin.lifecycle.event.types.LifecycleEvents;
 import xyz.soukup.ecoCraftCore.inventory.VirtualChest;
 import xyz.soukup.ecoCraftCore.positionMarker.RulerMarking;
@@ -29,23 +39,38 @@ import java.sql.SQLException;
 import java.util.logging.Level;
 import java.util.logging.Logger;
 
+import com.github.retrooper.packetevents.PacketEvents;
 
+import xyz.soukup.ecoCraftCore.islands.FakeWater;
 
 public final class EcoCraftCore extends JavaPlugin {
 
     public static EcoCraftCore plugin;
     public static ConnectionSource connectionSource;
+    public static FileConfiguration config;
 
     @Override
     public void onEnable() {
+
         this.getLogger().info("plugin starting out");
+
         plugin = this;
+        config = getConfig();
+
+        this.getServer().getMessenger().registerOutgoingPluginChannel(this, "BungeeCord");
+
+        PacketEvents.setAPI(SpigotPacketEventsBuilder.build(this));
+        PacketEvents.getAPI().load();
+        PacketEvents.getAPI().init();
 
         try {
+            saveDefaultConfig();
             Messages.init();
             prepareDatabase();
             registerCommands();
             registerEvents();
+            prepareSlimeWorldsSaver();
+
         } catch (SQLException e) {
             e.printStackTrace();
             getLogger().severe("Failed to initialize database.");
@@ -63,13 +88,81 @@ public final class EcoCraftCore extends JavaPlugin {
     public void onDisable() {
 
         VirtualChest.saveCache();
+        saveSlimeWorlds();
+        adiosDatabase();
 
-        try {
+        PacketEvents.getAPI().terminate();
-            if (connectionSource != null) {
+
-                connectionSource.close();
+    }
+
+    private void prepareSlimeWorldsSaver(){
+        Bukkit.getScheduler().runTaskTimerAsynchronously(plugin, () -> {
+            AdvancedSlimePaperAPI asp = AdvancedSlimePaperAPI.instance();
+
+            for (SlimeWorldInstance slimeWorldInstance : asp.getLoadedWorlds()){
+                try {
+                    asp.saveWorld(slimeWorldInstance);
+                } catch (IOException e) {
+                    throw new RuntimeException(e);
+                }
             }
-        } catch (Exception e) {
+        }, 12000L, 12000L);
-            e.printStackTrace();
+    }
+
+    private void prepareWorldInactivityUnloader(){
+        Bukkit.getScheduler().runTaskTimer(plugin, () -> {
+
+            long timeoutMillis = 30 * 60 * 1000;
+            long now = System.currentTimeMillis();
+
+            AdvancedSlimePaperAPI asp = AdvancedSlimePaperAPI.instance();
+            for (SlimeWorldInstance slimeWorldInstance : asp.getLoadedWorlds()) {
+
+                World world = slimeWorldInstance.getBukkitWorld();
+
+                if (!world.getPlayers().isEmpty()){
+                    world.removeMetadata("last_empty_time", plugin);
+                    continue;
+                }
+
+                if (!world.hasMetadata("last_empty_time")) {
+                    world.setMetadata("last_empty_time", new FixedMetadataValue(plugin, now));
+                    continue;
+                }
+
+                long emptySince = world.getMetadata("last_empty_time").get(0).asLong();
+
+
+                if ((now - emptySince) >= timeoutMillis) {
+                    Bukkit.unloadWorld(world, true);
+                }
+
+
+
+            }
+
+        }, 1200L, 1200L);
+
+    }
+
+    private void saveSlimeWorlds(){
+        AdvancedSlimePaperAPI asp = AdvancedSlimePaperAPI.instance();
+
+        for (SlimeWorldInstance slimeWorldInstance : asp.getLoadedWorlds()){
+            try {
+                asp.saveWorld(slimeWorldInstance);
+            } catch (IOException e) {
+                throw new RuntimeException(e);
+            }
+        }
+
+        try {
+            UpdateBuilder<Island, Integer> updateBuilder = DaoRegistry.getIslandDao().updateBuilder();
+            updateBuilder.where().eq("active_on", config.getString("server.name"));
+            updateBuilder.updateColumnValue("active_on", "");
+            updateBuilder.update();
+        } catch (SQLException e) {
+            throw new RuntimeException(e);
         }
     }
 
@@ -78,17 +171,40 @@ public final class EcoCraftCore extends JavaPlugin {
         connectionSource = new JdbcConnectionSource(databaseUrl, "ecc", "ecc");
         Logger.getLogger("com.j256.ormlite.table.TableUtils").setLevel(Level.OFF);
 
-
+        TableUtils.createTableIfNotExists(connectionSource, ActiveServer.class);
         TableUtils.createTableIfNotExists(connectionSource, Transaction.class);
         TableUtils.createTableIfNotExists(connectionSource, Shop.class);
         TableUtils.createTableIfNotExists(connectionSource, VirtualChest.class);
         TableUtils.createTableIfNotExists(connectionSource, Account.class);
+        TableUtils.createTableIfNotExists(connectionSource, Island.class);
+        TableUtils.createTableIfNotExists(connectionSource, TeleportRequest.class);
 
+        DaoRegistry.setActiveServerDao(DaoManager.createDao(connectionSource, ActiveServer.class));
         DaoRegistry.setTransactionDao(DaoManager.createDao(connectionSource, Transaction.class));
+        DaoRegistry.setIslandDaoo(DaoManager.createDao(connectionSource, Island.class));
         DaoRegistry.setShopDao(DaoManager.createDao(connectionSource, Shop.class));
         DaoRegistry.setVirtualChestDao(DaoManager.createDao(connectionSource, VirtualChest.class));
         DaoRegistry.setAccountDao(DaoManager.createDao(connectionSource, Account.class));
+        DaoRegistry.setTeleportRequestsDao(DaoManager.createDao(connectionSource, TeleportRequest.class));
+
+        ActiveServer activeServer = new ActiveServer(config.getString("server.name"));
+        activeServer.save();
+
+    }
 
+    private void adiosDatabase(){
+
+
+        try {
+            ActiveServer activeServer = new ActiveServer(config.getString("server.name"));
+            activeServer.delete();
+
+            if (connectionSource != null) {
+                connectionSource.close();
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
     }
 
     private void registerCommands() {
@@ -97,19 +213,21 @@ public final class EcoCraftCore extends JavaPlugin {
         lm.registerEventHandler(LifecycleEvents.COMMANDS, event -> event.registrar().register(ShopCommand.createCommand().build()));
         lm.registerEventHandler(LifecycleEvents.COMMANDS, event -> event.registrar().register(RulerCommand.createCommand().build()));
         lm.registerEventHandler(LifecycleEvents.COMMANDS, event -> event.registrar().register(MoneyCommand.createCommand().build()));
+        lm.registerEventHandler(LifecycleEvents.COMMANDS, event -> event.registrar().register(IslandCommand.createCommand().build()));
     }
 
     private void registerEvents(){
         PluginManager pm = this.getServer().getPluginManager();
 
+        pm.registerEvents(new TeleportRequestsHandler(), this);
         pm.registerEvents(new RulerMarking(), this);
         pm.registerEvents(new VirtualChestLogic(), this);
         pm.registerEvents(new ShopLogic(), this);
         pm.registerEvents(new PreparePlayer(), this);
 
-    }
-
-
 
+        EventManager events = PacketEvents.getAPI().getEventManager();
+        events.registerListener(new FakeWater(this), PacketListenerPriority.NORMAL);
 
+    }
 }

src/main/java/xyz/soukup/ecoCraftCore/database/DaoRegistry.java

@@ -10,7 +10,24 @@ public class    DaoRegistry {
     private static Dao<VirtualChest, Integer> virtualChestDao;
     private static Dao<Account, Integer> accountDao;
     private static Dao<Island, Integer> islandDao;
+    private static Dao<TeleportRequest, Integer> teleportRequestsDao;
+    private static Dao<ActiveServer, Integer> activeServerDao;
 
+    public static Dao<TeleportRequest, Integer> getTeleportRequestsDao() {
+        return teleportRequestsDao;
+    }
+
+    public static void setTeleportRequestsDao(Dao<TeleportRequest, Integer> teleportRequestsDao) {
+        DaoRegistry.teleportRequestsDao = teleportRequestsDao;
+    }
+
+    public static Dao<ActiveServer, Integer> getActiveServerDao() {
+        return activeServerDao;
+    }
+
+    public static void setActiveServerDao(Dao<ActiveServer, Integer> activeServerDao) {
+        DaoRegistry.activeServerDao = activeServerDao;
+    }
 
     public static Dao<Shop, Integer> getShopDao() {
         return shopDao;

src/main/java/xyz/soukup/ecoCraftCore/database/objects/ActiveServer.java

@@ -0,0 +1,34 @@
+package xyz.soukup.ecoCraftCore.database.objects;
+
+
+import com.j256.ormlite.field.DatabaseField;
+import com.j256.ormlite.table.DatabaseTable;
+import xyz.soukup.ecoCraftCore.database.DaoRegistry;
+
+import java.sql.SQLException;
+
+@DatabaseTable(tableName = "active_servers")
+public class ActiveServer {
+    @DatabaseField(unique = true, id = true)
+    private String name;
+
+    public ActiveServer(){
+
+    }
+
+    public ActiveServer(String name){
+        this.name = name;
+    }
+
+    public void save() throws SQLException {
+        DaoRegistry.getActiveServerDao().createIfNotExists(this);
+    }
+
+    public void delete() throws SQLException {
+        DaoRegistry.getActiveServerDao().delete(this);
+    }
+
+    public String getName() {
+        return name;
+    }
+}

src/main/java/xyz/soukup/ecoCraftCore/database/objects/Island.java

@@ -15,9 +15,8 @@ public class Island {
     @DatabaseField(canBeNull = false, unique = true)
     private String uuid;
 
-    @DatabaseField(canBeNull = false, unique = true)
+    @DatabaseField(canBeNull = false)
-    private String name;
+    private String type;
-
 
     @DatabaseField(columnName = "display_name")
     private String displayName;
@@ -37,12 +36,14 @@ public class Island {
     @DatabaseField(defaultValue = "", columnName = "active_on")
     private String activeOn;
 
+
+
     public Island(){
 
     }
 
-    public Island(String name, String uuid, String displayName, String descritpion, String owner, String ownerType, byte[] data) {
+    public Island(String type, String uuid, String displayName, String descritpion, String owner, String ownerType, byte[] data) {
-        this.name = name;
+        this.type = type;
         this.uuid = uuid;
         this.displayName = displayName;
         this.descritpion = descritpion;
@@ -60,8 +61,8 @@ public class Island {
         return id;
     }
 
-    public String getName() {
+    public String getType() {
-        return name;
+        return type;
     }
 
     public String getDisplayName() {

src/main/java/xyz/soukup/ecoCraftCore/database/objects/TeleportRequest.java

@@ -0,0 +1,96 @@
+package xyz.soukup.ecoCraftCore.database.objects;
+
+import com.j256.ormlite.field.DatabaseField;
+import com.j256.ormlite.table.DatabaseTable;
+import org.bukkit.Location;
+import xyz.soukup.ecoCraftCore.database.DaoRegistry;
+
+import java.sql.SQLException;
+
+@DatabaseTable(tableName = "teleport_requests")
+public class TeleportRequest {
+
+    @DatabaseField(unique = true, id = true)
+    private String player;
+
+    @DatabaseField(canBeNull = false)
+    private String server;
+
+    @DatabaseField(canBeNull = false)
+    private String world;
+
+    @DatabaseField
+    private Integer x;
+
+    @DatabaseField
+    private Integer y;
+
+    @DatabaseField
+    private Integer z;
+
+    @DatabaseField
+    private Float yaw;
+
+    @DatabaseField
+    private Float pitch;
+
+    public TeleportRequest() {
+    }
+
+    public TeleportRequest(String player, String server, String world) {
+        this.player = player;
+        this.server = server;
+        this.world = world;
+    }
+
+    public TeleportRequest(String player, String server, String world, Integer x, Integer y, Integer z, Float yaw, Float pitch) {
+        this.player = player;
+        this.server = server;
+        this.world = world;
+        this.x = x;
+        this.y = y;
+        this.z = z;
+        this.yaw = yaw;
+        this.pitch = pitch;
+    }
+
+    public String getServer() {
+        return server;
+    }
+
+    public String getWorld() {
+        return world;
+    }
+
+    public String getPlayer() {
+        return player;
+    }
+
+    public Integer getX() {
+        return x;
+    }
+
+    public Integer getY() {
+        return y;
+    }
+
+    public Integer getZ() {
+        return z;
+    }
+
+    public Float getYaw() {
+        return yaw;
+    }
+
+    public Float getPitch() {
+        return pitch;
+    }
+
+    public void save() throws SQLException {
+        DaoRegistry.getTeleportRequestsDao().createOrUpdate(this);
+    }
+
+    public void delete() throws SQLException {
+        DaoRegistry.getTeleportRequestsDao().delete(this);
+    }
+}

src/main/java/xyz/soukup/ecoCraftCore/islands/DatabaseIslandLoader.java

@@ -10,7 +10,7 @@ import java.sql.SQLException;
 import java.util.List;
 import java.util.stream.Collectors;
 
-public class IslandLoader implements SlimeLoader {
+public class DatabaseIslandLoader implements SlimeLoader {
 
 
     @Override

src/main/java/xyz/soukup/ecoCraftCore/islands/FakeWater.java

@@ -0,0 +1,269 @@
+package xyz.soukup.ecoCraftCore.islands;
+
+import com.github.retrooper.packetevents.event.PacketListener;
+import com.github.retrooper.packetevents.event.PacketSendEvent;
+import com.github.retrooper.packetevents.protocol.packettype.PacketType;
+import com.github.retrooper.packetevents.protocol.world.chunk.BaseChunk;
+import com.github.retrooper.packetevents.protocol.world.chunk.Column;
+import com.github.retrooper.packetevents.protocol.world.chunk.LightData;
+import com.github.retrooper.packetevents.protocol.world.chunk.TileEntity;
+import com.github.retrooper.packetevents.protocol.world.chunk.impl.v_1_18.Chunk_v1_18;
+import com.github.retrooper.packetevents.protocol.world.chunk.palette.DataPalette;
+import com.github.retrooper.packetevents.protocol.world.chunk.palette.PaletteType;
+import com.github.retrooper.packetevents.wrapper.play.server.WrapperPlayServerChunkData;
+import org.bukkit.Bukkit;
+import org.bukkit.NamespacedKey;
+import org.bukkit.World;
+import org.bukkit.entity.Player;
+import org.bukkit.persistence.PersistentDataContainer;
+import org.bukkit.persistence.PersistentDataType;
+import org.bukkit.plugin.java.JavaPlugin;
+
+import java.lang.reflect.Field;
+import java.lang.reflect.Method;
+import java.util.BitSet;
+import java.util.Arrays;
+
+public class FakeWater implements PacketListener {
+    private static final int FALLBACK_WATER_STATE_ID_1_21_1 = 12015;
+
+    private final JavaPlugin plugin;
+    private final NamespacedKey keyX1, keyX2, keyZ1, keyZ2, keyType;
+
+    // Resolved once (reflection), cached afterwards
+    private volatile Integer cachedWaterStateId;
+
+    public FakeWater(JavaPlugin plugin) {
+        this.plugin = plugin;
+        this.keyX1 = new NamespacedKey(plugin, "borderx1");
+        this.keyX2 = new NamespacedKey(plugin, "borderx2");
+        this.keyZ1 = new NamespacedKey(plugin, "bordery1"); // Based on your spec
+        this.keyZ2 = new NamespacedKey(plugin, "borderx2"); // Based on your spec
+        this.keyType = new NamespacedKey(plugin, "island_type");
+    }
+
+    @Override
+    public void onPacketSend(PacketSendEvent event) {
+        if (event.getPacketType() != PacketType.Play.Server.CHUNK_DATA) return;
+
+        Player bukkitPlayer = Bukkit.getPlayer(event.getUser().getUUID());
+        if (bukkitPlayer == null) return;
+
+        World world = bukkitPlayer.getWorld();
+        PersistentDataContainer pdc = world.getPersistentDataContainer();
+
+        String type = pdc.get(keyType, PersistentDataType.STRING);
+        if (!"flat_grass".equals(type)) return;
+
+        Integer x1 = pdc.get(keyX1, PersistentDataType.INTEGER);
+        Integer x2 = pdc.get(keyX2, PersistentDataType.INTEGER);
+        Integer z1 = pdc.get(keyZ1, PersistentDataType.INTEGER);
+        Integer z2 = pdc.get(keyZ2, PersistentDataType.INTEGER);
+        if (x1 == null || x2 == null || z1 == null || z2 == null) return;
+
+        int minCX = Math.min(x1 >> 4, x2 >> 4) - 1;
+        int maxCX = Math.max(x1 >> 4, x2 >> 4) + 1;
+        int minCZ = Math.min(z1 >> 4, z2 >> 4) - 1;
+        int maxCZ = Math.max(z1 >> 4, z2 >> 4) + 1;
+
+        WrapperPlayServerChunkData wrapper = new WrapperPlayServerChunkData(event);
+
+        Column original = wrapper.getColumn();
+        if (original == null) return;
+
+        int chunkX = original.getX();
+        int chunkZ = original.getZ();
+        if (chunkX >= minCX && chunkX <= maxCX && chunkZ >= minCZ && chunkZ <= maxCZ) return;
+
+        Column fake = createFakeWaterColumn(world, original, resolveWaterStateId());
+        if (fake == null) return;
+
+        wrapper.setColumn(fake);
+
+        // Force full-bright lighting for fake chunks to avoid "goes dark after radius"
+        wrapper.setLightData(buildFullBrightLightData(world));
+    }
+
+    private static LightData buildFullBrightLightData(World world) {
+        int sections = (world.getMaxHeight() - world.getMinHeight()) >> 4;
+        if (sections <= 0) sections = 24;
+
+        // 1.17+ light data uses sectionCount + 2 (one below min, one above max)
+        int lightCount = sections + 2;
+
+        // Each light array entry is 16*16*16 nibbles = 4096 nibbles = 2048 bytes
+        byte[] fullSky = new byte[2048];
+        Arrays.fill(fullSky, (byte) 0xFF); // 0xF in every nibble => light level 15
+
+        byte[] noBlock = new byte[2048]; // default 0 => block light 0
+
+        // If your dimension can ever be no-skylight, handle it:
+        boolean hasSkyLight = world.getEnvironment() != World.Environment.NETHER
+                && world.getEnvironment() != World.Environment.THE_END; // adjust if you have custom dims
+
+        BitSet skyMask = new BitSet(lightCount);
+        BitSet blockMask = new BitSet(lightCount);
+        BitSet emptySkyMask = new BitSet(lightCount);
+        BitSet emptyBlockMask = new BitSet(lightCount);
+
+        byte[][] skyArray;
+        int skyCount;
+        if (hasSkyLight) {
+            skyMask.set(0, lightCount);
+            skyCount = lightCount;
+            skyArray = new byte[skyCount][];
+            for (int i = 0; i < skyCount; i++) {
+                skyArray[i] = fullSky;
+            }
+        } else {
+            // no skylight dimension
+            emptySkyMask.set(0, lightCount);
+            skyCount = 0;
+            skyArray = new byte[0][];
+        }
+
+        blockMask.set(0, lightCount);
+        int blockCount = lightCount;
+        byte[][] blockArray = new byte[blockCount][];
+        for (int i = 0; i < blockCount; i++) {
+            blockArray[i] = noBlock;
+        }
+
+        LightData ld = new LightData();
+        ld.setTrustEdges(true);
+        ld.setSkyLightMask(skyMask);
+        ld.setBlockLightMask(blockMask);
+        ld.setEmptySkyLightMask(emptySkyMask);
+        ld.setEmptyBlockLightMask(emptyBlockMask);
+        ld.setSkyLightCount(skyCount);
+        ld.setBlockLightCount(blockCount);
+        ld.setSkyLightArray(skyArray);
+        ld.setBlockLightArray(blockArray);
+        return ld;
+    }
+
+    private Column createFakeWaterColumn(World world, Column original, int waterStateId) {
+        int sections = (world.getMaxHeight() - world.getMinHeight()) >> 4;
+        if (sections <= 0) sections = 24;
+
+        BaseChunk[] originalChunks = original.getChunks();
+
+        // Find any existing biome palette from the original packet; we will reuse it.
+        DataPalette fallbackBiomePalette = null;
+        if (originalChunks != null) {
+            for (BaseChunk bc : originalChunks) {
+                if (bc instanceof Chunk_v1_18 c) {
+                    fallbackBiomePalette = c.getBiomeData();
+                    break;
+                }
+            }
+        }
+
+
+        BaseChunk[] chunks = new BaseChunk[sections];
+
+        for (int sectionIndex = 0; sectionIndex < sections; sectionIndex++) {
+            DataPalette biomePalette = fallbackBiomePalette;
+
+            if (originalChunks != null && sectionIndex < originalChunks.length && originalChunks[sectionIndex] instanceof Chunk_v1_18 c) {
+                // Prefer the matching section's biome palette if present
+                biomePalette = c.getBiomeData();
+            }
+
+            DataPalette blockPalette = PaletteType.CHUNK.create();
+
+            Chunk_v1_18 section = new Chunk_v1_18(0, blockPalette, biomePalette);
+            section.set(0, 0, 0, 0);
+
+            chunks[sectionIndex] = section;
+        }
+
+        // Section 0 == world Y -64..-49. Set only local y=0 and y=1 to water.
+        if (chunks[0] instanceof Chunk_v1_18 section0) {
+            for (int localY = 0; localY <= 1; localY++) {
+                for (int x = 0; x < 16; x++) {
+                    for (int z = 0; z < 16; z++) {
+                        section0.set(x, localY, z, waterStateId);
+                    }
+                }
+            }
+        }
+
+        return new Column(
+                original.getX(),
+                original.getZ(),
+                true,
+                chunks,
+                new TileEntity[0],
+                original.getHeightMaps()
+        );
+    }
+
+    private int resolveWaterStateId() {
+        Integer cached = cachedWaterStateId;
+        if (cached != null) return cached;
+
+        int resolved = FALLBACK_WATER_STATE_ID_1_21_1;
+
+        try {
+            Object waterState = resolveNmsWaterBlockState();
+            if (waterState != null) {
+                Integer id = tryGetBlockStateIdViaBlockGetId(waterState);
+                if (id == null) {
+                    id = tryGetBlockStateIdViaBuiltInRegistry(waterState);
+                }
+                if (id != null && id > 0) {
+                    resolved = id;
+                }
+            }
+        } catch (ReflectiveOperationException ignored) {
+            // fallback
+        }
+
+        cachedWaterStateId = resolved;
+        plugin.getLogger().info("[FakeWater] Using water block-state id: " + resolved);
+        return resolved;
+    }
+
+    private static Object resolveNmsWaterBlockState() throws ReflectiveOperationException {
+        Class<?> blocksClass = Class.forName("net.minecraft.world.level.block.Blocks");
+        Field waterField = blocksClass.getField("WATER");
+        Object waterBlock = waterField.get(null);
+
+        Method defaultBlockState = waterBlock.getClass().getMethod("defaultBlockState");
+        return defaultBlockState.invoke(waterBlock);
+    }
+
+    private static Integer tryGetBlockStateIdViaBlockGetId(Object blockState) throws ReflectiveOperationException {
+        // Block.getId(BlockState) exists on many modern versions
+        Class<?> blockClass = Class.forName("net.minecraft.world.level.block.Block");
+        Class<?> blockStateClass = Class.forName("net.minecraft.world.level.block.state.BlockState");
+
+        try {
+            Method getId = blockClass.getMethod("getId", blockStateClass);
+            Object idObj = getId.invoke(null, blockState);
+            return (idObj instanceof Integer i) ? i : null;
+        } catch (NoSuchMethodException ignored) {
+            return null;
+        }
+    }
+
+    private static Integer tryGetBlockStateIdViaBuiltInRegistry(Object blockState) throws ReflectiveOperationException {
+        Class<?> blockStateClass = Class.forName("net.minecraft.world.level.block.state.BlockState");
+        Class<?> builtInRegistriesClass = Class.forName("net.minecraft.core.registries.BuiltInRegistries");
+
+        Field blockStateRegistryField = builtInRegistriesClass.getField("BLOCK_STATE");
+        Object blockStateRegistry = blockStateRegistryField.get(null);
+
+        Method getId = blockStateRegistry.getClass().getMethod("getId", Object.class);
+        try {
+            // Prefer exact signature if present: getId(BlockState)
+            Method exact = blockStateRegistry.getClass().getMethod("getId", blockStateClass);
+            Object idObj = exact.invoke(blockStateRegistry, blockState);
+            return (idObj instanceof Integer i) ? i : null;
+        } catch (NoSuchMethodException ignored) {
+            Object idObj = getId.invoke(blockStateRegistry, blockState);
+            return (idObj instanceof Integer i) ? i : null;
+        }
+    }
+}

src/main/java/xyz/soukup/ecoCraftCore/islands/FileIslandLoader.java

@@ -0,0 +1,72 @@
+package xyz.soukup.ecoCraftCore.islands;
+
+import com.infernalsuite.asp.api.exceptions.UnknownWorldException;
+import com.infernalsuite.asp.api.loaders.SlimeLoader;
+import xyz.soukup.ecoCraftCore.EcoCraftCore;
+
+import java.io.File;
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+import java.util.stream.Collectors;
+
+public class FileIslandLoader implements SlimeLoader {
+
+    private final Path storagePath;
+    private static final String EXTENSION = ".slime";
+
+    public FileIslandLoader() {
+        // Creates a directory named 'islands' inside your plugin folder
+        this.storagePath = EcoCraftCore.plugin.getDataFolder().toPath().resolve("island_templates");
+
+        if (!Files.exists(storagePath)) {
+            storagePath.toFile().mkdirs();
+        }
+    }
+
+    private Path getWorldPath(String worldName) {
+        return storagePath.resolve(worldName + EXTENSION);
+    }
+
+    @Override
+    public byte[] readWorld(String worldName) throws UnknownWorldException, IOException {
+        Path path = getWorldPath(worldName);
+        if (!Files.exists(path)) {
+            throw new UnknownWorldException(worldName);
+        }
+        return Files.readAllBytes(path);
+    }
+
+    @Override
+    public boolean worldExists(String worldName) throws IOException {
+        return Files.exists(getWorldPath(worldName));
+    }
+
+    @Override
+    public void saveWorld(String worldName, byte[] serializedWorld) throws IOException {
+        // Files.write will create or overwrite the file automatically
+        Files.write(getWorldPath(worldName), serializedWorld);
+    }
+
+    @Override
+    public void deleteWorld(String worldName) throws IOException {
+        Files.deleteIfExists(getWorldPath(worldName));
+    }
+
+    @Override
+    public List<String> listWorlds() throws IOException {
+        File folder = storagePath.toFile();
+        File[] files = folder.listFiles((dir, name) -> name.endsWith(EXTENSION));
+
+        if (files == null) {
+            return Collections.emptyList();
+        }
+
+        return Arrays.stream(files)
+                .map(file -> file.getName().replace(EXTENSION, ""))
+                .collect(Collectors.toList());
+    }
+}

src/main/java/xyz/soukup/ecoCraftCore/islands/IslandCommand.java

@@ -1,32 +1,228 @@
 package xyz.soukup.ecoCraftCore.islands;
 
+import com.infernalsuite.asp.api.AdvancedSlimePaperAPI;
+import com.infernalsuite.asp.api.world.SlimeWorld;
+import com.j256.ormlite.stmt.QueryBuilder;
+import com.mojang.brigadier.arguments.IntegerArgumentType;
 import com.mojang.brigadier.arguments.StringArgumentType;
 import com.mojang.brigadier.builder.LiteralArgumentBuilder;
 import com.mojang.brigadier.context.CommandContext;
 import io.papermc.paper.command.brigadier.CommandSourceStack;
 import io.papermc.paper.command.brigadier.Commands;
+import org.bukkit.NamespacedKey;
+import org.bukkit.entity.Player;
+import org.bukkit.persistence.PersistentDataContainer;
+import org.bukkit.persistence.PersistentDataType;
+import xyz.soukup.ecoCraftCore.database.DaoRegistry;
+import xyz.soukup.ecoCraftCore.database.objects.Island;
 
+import java.io.IOException;
+import java.sql.SQLException;
+import java.util.List;
+
+import static xyz.soukup.ecoCraftCore.EcoCraftCore.plugin;
 
 public class IslandCommand {
 
-    LiteralArgumentBuilder<CommandSourceStack> tp = Commands.literal("tp")
+    public static LiteralArgumentBuilder<CommandSourceStack> createCommand() {
-            .then(Commands.argument("uuid", StringArgumentType.word())
+
-                    .executes(IslandCommand::teleport));
+        LiteralArgumentBuilder<CommandSourceStack> tp = Commands.literal("tp")
+                .then(Commands.argument("uuid", StringArgumentType.word())
+                        .executes(IslandCommand::teleport)
+                        .suggests(((context, builder) -> {
+                            try {
+                                QueryBuilder<Island, Integer> queryBuilder = DaoRegistry.getIslandDao().queryBuilder();
+                                queryBuilder.selectColumns("uuid");
+                                List<Island> islands = queryBuilder.query();
+                                for (Island island : islands) {
+                                    builder.suggest(island.getUuid());
+                                }
+                                return builder.buildFuture();
+                            } catch (SQLException e) {
+                                throw new RuntimeException(e);
+                            }
+                        })));
+
+        LiteralArgumentBuilder<CommandSourceStack> create = Commands.literal("create")
+                .then(Commands.argument("type", StringArgumentType.word())
+                        .then(Commands.argument("display_name", StringArgumentType.string())
+                                .then(Commands.argument("description", StringArgumentType.greedyString())
+                                        .executes(IslandCommand::createWorld))));
+
+        LiteralArgumentBuilder<CommandSourceStack> load = Commands.literal("load")
+                .then(Commands.argument("uuid", StringArgumentType.word())
+                        .suggests(((context, builder) -> {
+                            try {
+                                QueryBuilder<Island, Integer> queryBuilder = DaoRegistry.getIslandDao().queryBuilder();
+                                queryBuilder.selectColumns("uuid");
+                                List<Island> islands = queryBuilder.query();
+                                for (Island island : islands) {
+                                    builder.suggest(island.getUuid());
+                                }
+                                return builder.buildFuture();
+                            } catch (SQLException e) {
+                                throw new RuntimeException(e);
+                            }
+                        }))
+                        .executes(IslandCommand::loadWorld));
+
+        LiteralArgumentBuilder<CommandSourceStack> loadTemplate = Commands.literal("loadTemplate")
+                .then(Commands.argument("name", StringArgumentType.word())
+                        .suggests(((context, builder) -> {
+                            IslandManager islandManager = new IslandManager();
+                            FileIslandLoader fileLoader = islandManager.fileLoader;
+
+                            try {
+                                for (String world: fileLoader.listWorlds()){
+                                    builder.suggest(world);
+                                }
+                            } catch (IOException e) {
+                                throw new RuntimeException(e);
+                            }
+                            return builder.buildFuture();
+                        }))
+                        .executes(IslandCommand::loadTemplate));
+
+        LiteralArgumentBuilder<CommandSourceStack> template = Commands.literal("template")
+                .then(Commands.argument("uuid", StringArgumentType.word())
+                        .suggests((context, builder) -> {
+                            try {
+                                QueryBuilder<Island, Integer> queryBuilder = DaoRegistry.getIslandDao().queryBuilder();
+                                queryBuilder.selectColumns("uuid");
+                                List<Island> islands = queryBuilder.query();
+                                for (Island island : islands) {
+                                    builder.suggest(island.getUuid());
+                                }
+                                return builder.buildFuture();
+                            } catch (SQLException e) {
+                                throw new RuntimeException(e);
+                            }
+                        })
+                        .then(Commands.argument("templateName", StringArgumentType.word())
+                                .executes(IslandCommand::createTemplate)));
+
+        LiteralArgumentBuilder<CommandSourceStack> metadata = Commands.literal("metadata")
+                .then(Commands.argument("key", StringArgumentType.word())
+                        .then(Commands.argument("value", IntegerArgumentType.integer())
+                                .executes(IslandCommand::setMetadata)));
+
+        LiteralArgumentBuilder<CommandSourceStack> metadataString = Commands.literal("metadataString")
+                .then(Commands.argument("key", StringArgumentType.word())
+                        .then(Commands.argument("value", StringArgumentType.string())
+                                .executes(IslandCommand::setMetadataString)));
 
-    LiteralArgumentBuilder<CommandSourceStack> create = Commands.literal("create")
+        // NEW: Branch to read all metadata
-            .then(Commands.argument("name", StringArgumentType.word())
+        LiteralArgumentBuilder<CommandSourceStack> listMetadata = Commands.literal("listMetadata")
-                    .then(Commands.argument("display_name", StringArgumentType.string())));
+                .executes(IslandCommand::readAllMetadata);
+
+        return Commands.literal("island")
+                .then(tp)
+                .then(create)
+                .then(load)
+                .then(template)
+                .then(metadata)
+                .then(metadataString)
+                .then(listMetadata)
+                .then(loadTemplate);
+
+    }
 
     private static int teleport(CommandContext<CommandSourceStack> context) {
+        IslandManager islandManager = new IslandManager();
+        try {
+            islandManager.teleport((Player) context.getSource().getSender(), context.getArgument("uuid", String.class));
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
         return 0;
     }
 
     private static int createWorld(CommandContext<CommandSourceStack> context) {
+        IslandManager islandManager = new IslandManager();
+        String type = context.getArgument("type", String.class);
+        String displayName = context.getArgument("display_name", String.class);
+        String description = context.getArgument("description", String.class);
+        islandManager.createIsland(type, displayName, description, "n", "n");
         return 0;
     }
 
     private static int loadWorld(CommandContext<CommandSourceStack> context) {
+        IslandManager islandManager = new IslandManager();
+        islandManager.loadIsland(context.getArgument("uuid", String.class));
+        return 0;
+    }
+
+    private static int loadTemplate(CommandContext<CommandSourceStack> context) {
+        IslandManager islandManager = new IslandManager();
+        islandManager.loadIslandTemplate(context.getArgument("name", String.class));
         return 0;
     }
 
-}
+    private static int createTemplate(CommandContext<CommandSourceStack> context) {
+        IslandManager islandManager = new IslandManager();
+        String uuid = StringArgumentType.getString(context, "uuid");
+        String templateName = StringArgumentType.getString(context, "templateName");
+        context.getSource().getSender().sendMessage("§aCreating template '" + templateName + "' from world '" + uuid + "'...");
+        islandManager.createIslandTemplate(uuid, templateName);
+        context.getSource().getSender().sendMessage("§aTemplate created successfully!");
+        return 1;
+    }
+
+    private static int setMetadata(CommandContext<CommandSourceStack> context) {
+        if (!(context.getSource().getSender() instanceof Player player)) return 0;
+
+        String keyName = StringArgumentType.getString(context, "key");
+        Integer value = IntegerArgumentType.getInteger(context, "value");
+
+
+
+        player.getWorld().getPersistentDataContainer().set(new NamespacedKey(plugin, keyName), PersistentDataType.INTEGER, value);
+        return 1;
+    }
+
+    private static int setMetadataString(CommandContext<CommandSourceStack> context) {
+        if (!(context.getSource().getSender() instanceof Player player)) return 0;
+
+        String keyName = StringArgumentType.getString(context, "key");
+        String value = StringArgumentType.getString(context, "value");
+
+        player.getWorld().getPersistentDataContainer().set(new NamespacedKey(plugin, keyName), PersistentDataType.STRING, value);
+        
+        return 1;
+    }
+
+    private static int readAllMetadata(CommandContext<CommandSourceStack> context) {
+        if (!(context.getSource().getSender() instanceof Player player)) {
+            context.getSource().getSender().sendMessage("§cOnly players can use this.");
+            return 0;
+        }
+
+
+        PersistentDataContainer pdc = player.getWorld().getPersistentDataContainer();
+        if (pdc.getKeys().isEmpty()) {
+            player.sendMessage("§eNo metadata found.");
+            return 1;
+        }
+
+        player.sendMessage("§6--- World Metadata ---");
+        for (NamespacedKey key : pdc.getKeys()) {
+            String val = "unknown";
+            // Logic to determine type for display
+            if (pdc.has(key, PersistentDataType.STRING)) val = pdc.get(key, PersistentDataType.STRING);
+            else if (pdc.has(key, PersistentDataType.INTEGER)) val = String.valueOf(pdc.get(key, PersistentDataType.INTEGER));
+
+            player.sendMessage("§b" + key.getKey() + "§7: §f" + val);
+        }
+        return 1;
+    }
+
+    private static void saveSlimeWorld(SlimeWorld world, Player player, String key, String val) {
+        try {
+            AdvancedSlimePaperAPI.instance().saveWorld(world);
+            player.sendMessage("§aMetadata set: §f" + key + " §7= §f" + val);
+        } catch (IOException e) {
+            player.sendMessage("§cFailed to save world metadata!");
+            e.printStackTrace();
+        }
+    }
+}

src/main/java/xyz/soukup/ecoCraftCore/islands/IslandManager.java

@@ -1,85 +1,253 @@
 package xyz.soukup.ecoCraftCore.islands;
 
+import com.google.common.io.ByteArrayDataOutput;
+import com.google.common.io.ByteStreams;
 import com.infernalsuite.asp.api.AdvancedSlimePaperAPI;
+import com.infernalsuite.asp.api.exceptions.CorruptedWorldException;
+import com.infernalsuite.asp.api.exceptions.NewerFormatException;
+import com.infernalsuite.asp.api.exceptions.UnknownWorldException;
+import com.infernalsuite.asp.api.exceptions.WorldAlreadyExistsException;
 import com.infernalsuite.asp.api.world.SlimeWorld;
 import com.infernalsuite.asp.api.world.properties.SlimeProperties;
 import com.infernalsuite.asp.api.world.properties.SlimePropertyMap;
+import com.j256.ormlite.dao.Dao;
+import com.j256.ormlite.dao.GenericRawResults;
+import com.j256.ormlite.stmt.QueryBuilder;
+import com.j256.ormlite.stmt.UpdateBuilder;
 import org.bukkit.Bukkit;
+import org.bukkit.Location;
+import org.bukkit.World;
+import org.bukkit.entity.Player;
 import xyz.soukup.ecoCraftCore.database.objects.Island;
 import xyz.soukup.ecoCraftCore.database.DaoRegistry;
+import xyz.soukup.ecoCraftCore.database.objects.TeleportRequest;
 
+import java.io.IOException;
 import java.sql.SQLException;
+import java.util.Objects;
 import java.util.UUID;
+import java.util.concurrent.CompletableFuture;
 
+import static xyz.soukup.ecoCraftCore.EcoCraftCore.config;
 import static xyz.soukup.ecoCraftCore.EcoCraftCore.plugin;
 
 public class IslandManager {
     private final AdvancedSlimePaperAPI asp = AdvancedSlimePaperAPI.instance();
-    private final IslandLoader loader = new IslandLoader();
+    private final DatabaseIslandLoader databaseLoader = new DatabaseIslandLoader();
+    public final FileIslandLoader fileLoader = new FileIslandLoader();
+    private final Dao<Island, Integer> dao = DaoRegistry.getIslandDao();
 
+    public void createIslandTemplate(String uuid, String templateName){
+        try {
+            SlimeWorld slimeWorld = asp.getLoadedWorld(uuid).clone(templateName, fileLoader);
+            asp.saveWorld(slimeWorld);
+        } catch (WorldAlreadyExistsException e) {
+            throw new RuntimeException(e);
+        } catch (IOException e) {
+            throw new RuntimeException(e);
+        }
+    }
 
-    public void createIsland(String name, String displayName, String descritpion, String owner, String ownerType) {
+    public String createIsland(String type, String displayName, String descritpion, String owner, String ownerType) {
         String uuid = UUID.randomUUID().toString();
 
-
-        SlimePropertyMap props = new SlimePropertyMap();
-        props.setValue(SlimeProperties.ENVIRONMENT, "overworld");
-        props.setValue(SlimeProperties.WORLD_TYPE, "flat");
-
-        // Create empty world in ASWM
         try {
-            // Note: createEmptyWorld is fast, so we can run some parts sync if needed,
-            // but it's best to run the whole chain async.
             Bukkit.getScheduler().runTaskAsynchronously(plugin, () -> {
                 try {
-                    // Create the database entry first so the loader has a row to update
+                    SlimePropertyMap props = new SlimePropertyMap();
+                    props.setValue(SlimeProperties.ENVIRONMENT, "normal");
+                    props.setValue(SlimeProperties.WORLD_TYPE, "flat");
+                    props.setValue(SlimeProperties.ALLOW_ANIMALS, false);
+                    props.setValue(SlimeProperties.ALLOW_MONSTERS, false);
+                    props.setValue(SlimeProperties.SPAWN_X, 0);
+                    props.setValue(SlimeProperties.SPAWN_Y, 2);
+                    props.setValue(SlimeProperties.SPAWN_Z, 0);
 
 
-                    Island island = new Island(name, uuid, displayName, descritpion, owner, ownerType, null);
+
+                    Island island = new Island(type, uuid, displayName, descritpion, owner, ownerType, null);
                     island.save();
-                    SlimeWorld slimeWorld = asp.createEmptyWorld(uuid, false, props, loader);
+
+                    SlimeWorld slimeWorld;
+
+                    slimeWorld = asp.createEmptyWorld(uuid, false, props, databaseLoader);
+
+                    asp.saveWorld(slimeWorld);
 
 
-                    Bukkit.getScheduler().runTask(plugin, () -> {
-                        asp.loadWorld(slimeWorld, true);
-                    });
                 } catch (Exception e) { e.printStackTrace(); }
             });
         } catch (Exception e) { e.printStackTrace(); }
+
+        return uuid;
     }
 
-    // 2. Retrieve and Load existing island
-    public int loadIsland(String uuid)  {
 
-        if (Bukkit.getWorld(uuid) != null) {
+
-            return 0;
+    public void teleport(Player player, String uuid) throws Exception {
+        teleport(player, uuid, null, null, null, null, null);
+    }
+
+    public void teleport(Player player, String uuid, Integer x, Integer y, Integer z, Float yaw, Float pitch) throws Exception {
+        if (Bukkit.getWorld(uuid) != null){
+            teleportLocally(player, uuid, x, y, z, yaw, pitch);
         }
 
-        try {
+        String whereIsActive = whereIsActive(uuid);
-            Island island = DaoRegistry.getIslandDao().queryBuilder()
+        if (whereIsActive != null){
-                    .selectColumns("active_on")
+            sendPlayerAway(player, whereIsActive, uuid, x, y, z, yaw, pitch);
-                    .where()
+        }
-                    .eq("uuid", uuid)
+
-                    .queryForFirst();
+        QueryBuilder<Island, Integer> queryBuilder = dao.queryBuilder().setCountOf(true);
-
+        queryBuilder.where().eq("uuid", uuid);
-            if (!island.getActiveOn().isEmpty()){
+
-                return 1;
+        if (dao.countOf(queryBuilder.prepare()) < 1){
+            return;
+        }
+
+        if (player.getVirtualHost() != null){
+            String emptiestServer = getEmptiestServer();
+            if (!Objects.equals(emptiestServer, config.getString("server.name"))){
+                sendPlayerAway(player, emptiestServer, uuid, x, y, z, yaw, pitch);
             }
-        } catch (SQLException e) {
+
-            return 2;
         }
 
+        teleportLocally(player, uuid, x, y, z, yaw, pitch);
+
+    }
+
+    public void teleportLocally(Player player, String uuid,
+                                Integer x, Integer y, Integer z,
+                                Float yaw, Float pitch) {
+
+        loadIsland(uuid).thenAccept(world -> {
+
+            Location location = world.getSpawnLocation();
+
+            if (x != null) {
+                location = new Location(world, x, y, z, yaw, pitch);
+            }
+
+            player.teleport(location);
+
+        }).exceptionally(ex -> {
+            ex.printStackTrace();
+            player.sendMessage("§cFailed to load island.");
+            return null;
+        });
+    }
+
+    private String whereIsActive(String uuid) throws SQLException {
+        Island island = dao.queryBuilder()
+                .selectColumns("active_on")
+                .where()
+                .eq("uuid", uuid)
+                .queryForFirst();
+
+        if (island == null){
+            return null;
+        }
+        if (island.getActiveOn() == null){
+            return null;
+        }
+
+        return island.getActiveOn();
+    }
+
+    private void sendPlayerAway(Player player, String server, String uuid, Integer x, Integer y, Integer z, Float yaw, Float pitch) throws SQLException {
+        TeleportRequest teleportRequest = new TeleportRequest(player.getName(), server, uuid, x, y, z, yaw, pitch);
+        teleportRequest.save();
+
+        ByteArrayDataOutput out = ByteStreams.newDataOutput();
+        out.writeUTF("Connect");
+        out.writeUTF(server);
+        player.sendPluginMessage(plugin, "BungeeCord", out.toByteArray());
+    }
+
+    public void loadIslandTemplate(String name){
+        SlimeWorld slimeWorld = null;
+        try {
+            slimeWorld = asp.readWorld(fileLoader, name, false, new SlimePropertyMap());
+            asp.loadWorld(slimeWorld, true);
+
+        } catch (UnknownWorldException e) {
+            throw new RuntimeException(e);
+        } catch (IOException e) {
+            throw new RuntimeException(e);
+        } catch (CorruptedWorldException e) {
+            throw new RuntimeException(e);
+        } catch (NewerFormatException e) {
+            throw new RuntimeException(e);
+        }
+
+    }
+
+    public CompletableFuture<World> loadIsland(String uuid) {
+
+        CompletableFuture<World> future = new CompletableFuture<>();
+
+        if (Bukkit.getWorld(uuid) != null) {
+            future.complete(Bukkit.getWorld(uuid));
+            return future;
+        }
 
         Bukkit.getScheduler().runTaskAsynchronously(plugin, () -> {
             try {
 
-                SlimeWorld slimeWorld = asp.readWorld(loader, uuid, false, new SlimePropertyMap());
+                SlimeWorld slimeWorld = asp.readWorld(databaseLoader, uuid, false, new SlimePropertyMap());
+
                 Bukkit.getScheduler().runTask(plugin, () -> {
-                    asp.loadWorld(slimeWorld, true);
+                    try {
+
+                        UpdateBuilder updateBuilder = dao.updateBuilder();
+                        updateBuilder.where().eq("uuid", uuid);
+                        updateBuilder.updateColumnValue("active_on", config.getString("server.name"));
+                        updateBuilder.update();
+
+                        asp.loadWorld(slimeWorld, true);
+
+                        World world = Bukkit.getWorld(uuid);
+                        if (world != null) {
+                            future.complete(world);
+                        } else {
+                            future.completeExceptionally(
+                                    new IllegalStateException("World loaded but Bukkit returned null"));
+                        }
+
+                    } catch (Exception e) {
+                        future.completeExceptionally(e);
+                    }
                 });
-            } catch (Exception e) { e.printStackTrace(); }
+
+            } catch (Exception e) {
+                future.completeExceptionally(e);
+            }
         });
-        return 0;
+
+        return future;
+    }
+
+    private String getEmptiestServer() throws Exception {
+        String query = "SELECT active_servers.name " +
+                "FROM active_servers " +
+                "LEFT JOIN islands ON active_servers.name = islands.active_on " +
+                "GROUP BY active_servers.name " +
+                "ORDER BY COUNT(islands.uuid) ASC " +
+                "LIMIT 1";
+
+        GenericRawResults<String[]> rawResults =
+                DaoRegistry.getActiveServerDao().queryRaw(query);
+
+        String[] firstResult = rawResults.getFirstResult();
+        rawResults.close();
+
+        if (firstResult != null && firstResult.length > 0) {
+            String serverName = firstResult[0];
+            return firstResult[0];
+        }
+
+        return null;
     }
 
 

src/main/java/xyz/soukup/ecoCraftCore/islands/UnloadIsland.java

@@ -1,4 +1,4 @@
 package xyz.soukup.ecoCraftCore.islands;
 
-public class UnloadWorld {
+public class UnloadIsland {
 }

src/main/java/xyz/soukup/ecoCraftCore/islands/generators/FlatGrass.java

@@ -0,0 +1,44 @@
+package xyz.soukup.ecoCraftCore.islands.generators;
+
+import org.bukkit.Material;
+import org.bukkit.generator.ChunkGenerator;
+import org.bukkit.generator.WorldInfo;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.Random;
+
+public class FlatGrass extends ChunkGenerator {
+
+
+    @Override
+    public void generateNoise(@NotNull WorldInfo worldInfo, @NotNull Random random, int chunkX, int chunkZ, @NotNull ChunkData chunkData) {
+
+        for (int x = 0; x < 16; x++) {
+            for (int z = 0; z < 16; z++) {
+                for (int y = worldInfo.getMinHeight(); y < 0; y++) {
+                    chunkData.setBlock(x, y, z, Material.WATER);
+                }
+            }
+        }
+    }
+
+    @Override
+    public void generateSurface(@NotNull WorldInfo worldInfo, @NotNull Random random, int chunkX, int chunkZ, @NotNull ChunkData chunkData) {
+        for (int x = 0; x < 16; x++) {
+            for (int z = 0; z < 16; z++) {
+
+                int worldX = (chunkX * 16) + x;
+                int worldZ = (chunkZ * 16) + z;
+
+                if (worldX >= -50 && worldX < 50 && worldZ >= -50 && worldZ < 50) {
+                    chunkData.setBlock(x, 1, z, Material.STONE);
+                }
+                if (worldX >= -51 && worldX < 51 && worldZ >= -51 && worldZ < 51) {
+                    chunkData.setBlock(x, 0, z, Material.STONE);
+                    chunkData.setBlock(x, -1, z, Material.STONE);
+                }
+            }
+        }
+    }
+
+}

src/main/java/xyz/soukup/ecoCraftCore/player/TeleportRequestsHandler.java

@@ -0,0 +1,40 @@
+package xyz.soukup.ecoCraftCore.player;
+
+import com.j256.ormlite.stmt.QueryBuilder;
+import org.bukkit.entity.Player;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.event.player.PlayerJoinEvent;
+import xyz.soukup.ecoCraftCore.database.DaoRegistry;
+import xyz.soukup.ecoCraftCore.database.objects.TeleportRequest;
+import xyz.soukup.ecoCraftCore.islands.IslandManager;
+
+import java.sql.SQLException;
+
+public class TeleportRequestsHandler implements Listener {
+
+    @EventHandler
+    public void teleportRequestHandler(PlayerJoinEvent event){
+        try {
+            Player player = event.getPlayer();
+
+            QueryBuilder<TeleportRequest, Integer> queryBuilder = DaoRegistry.getTeleportRequestsDao().queryBuilder();
+            queryBuilder.where().eq("player", player.getName());
+
+            TeleportRequest teleportRequest = queryBuilder.queryForFirst();
+
+            if (teleportRequest == null){
+                return;
+            }
+
+            IslandManager islandManager = new IslandManager();
+
+            islandManager.teleportLocally(player, teleportRequest.getWorld(), teleportRequest.getX(), teleportRequest.getY(), teleportRequest.getY(), teleportRequest.getYaw(), teleportRequest.getPitch());
+
+            teleportRequest.delete();
+
+        } catch (SQLException e) {
+            throw new RuntimeException(e);
+        }
+    }
+}

src/main/resources/plugin.yml

@@ -2,3 +2,6 @@ name: EcoCraftCore
 version: '1.0-SNAPSHOT'
 main: xyz.soukup.ecoCraftCore.EcoCraftCore
 api-version: '1.21'
+depend:
+  - packetevents
+