Bug Fixes

# Fixed players being teleported to the nether island world when they enter a nether portal when the nether island world is disabled.
# Fixed command tab completion suggesting all available commands rather than commands that contain an entered argument.
# Fixed Island level not updating in the Visit menu or the Leaderboard menu when peforming an Island level request.
# Fixed NPE when voting for another Island when the player who's voting doesn't own one.
# Fixed the Visit menu displaying the previous owner when changing the Island owner.
# Fixed players being able to remain in the nether island world when it is disabled.
# Fixed NSME when pasting an Island structure on creation when using 1.13 release 1.
# Fixed chunk error when setting the Island biome on 1.13.x builds.
# Fixed Leaderboard not sort values correctly.

language.yml

@@ -658,6 +658,9 @@ Island:
             Signature:
                 Disabled:
                     Message: "&bSkyBlock &8| &cError&8: &eYou don't have permission to use that feature."
+    World:
+        Nether:
+            Message: "&bSkyBlock &8| &aInfo&8: &eYou have been teleported out of the nether because the nether is disabled."
     WorldBorder:
         Outside:
             Message: "&bSkyBlock &8| &cError&8: &eYou went too far outside the Island WorldBorder."

plugin.yml

@@ -1,6 +1,6 @@
 name: SkyBlock
 main: me.goodandevil.skyblock.Main
-version: 21
+version: 22
 api-version: 1.13
 description: A unique SkyBlock plugin
 author: GoodAndEvil

src/me/goodandevil/skyblock/command/CommandManager.java

@@ -245,21 +245,51 @@ public class CommandManager implements CommandExecutor, TabCompleter {
 			List<String> commandAliases = new ArrayList<>();
 			
 			if (args.length == 1) {
-				commandAliases.add("admin");
+				if (args[0] == null || args[0].isEmpty()) {
+					commandAliases.add("admin");
 					
-				for (SubCommand subCommandList : subCommands.get(Type.Default)) {
+					for (SubCommand subCommandList : subCommands.get(Type.Default)) {
-					commandAliases.add(subCommandList.getName());
+						commandAliases.add(subCommandList.getName());
+					}
+				} else {
+					if ("admin".contains(args[0].toLowerCase())) {
+						commandAliases.add("admin");
+					}
+					
+					for (SubCommand subCommandList : subCommands.get(Type.Default)) {
+						if (subCommandList.getName().toLowerCase().contains(args[0].toLowerCase())) {
+							commandAliases.add(subCommandList.getName());
+						}
+					}
 				}
 			} else if (args.length == 2) {
 				if (args[0].equalsIgnoreCase("admin")) {
-					for (SubCommand subCommandList : subCommands.get(Type.Admin)) {
+					if (args[1] == null || args[1].isEmpty()) {
-						commandAliases.add(subCommandList.getName());
+						for (SubCommand subCommandList : subCommands.get(Type.Admin)) {
+							commandAliases.add(subCommandList.getName());
+						}
+					} else {
+						for (SubCommand subCommandList : subCommands.get(Type.Admin)) {
+							if (subCommandList.getName().toLowerCase().contains(args[1].toLowerCase())) {
+								commandAliases.add(subCommandList.getName());
+							}
+						}
 					}
 				}
 			} else if (args.length == 3) {
 				if (args[0].equalsIgnoreCase("admin") && args[1].equalsIgnoreCase("structure")) {
-					commandAliases.add("tool");
+					if (args[2] == null || args[2].isEmpty()) {
-					commandAliases.add("save");
+						commandAliases.add("tool");
+						commandAliases.add("save");	
+					} else {
+						if ("tool".contains(args[2].toLowerCase())) {
+							commandAliases.add("tool");
+						}
+						
+						if ("save".contains(args[2].toLowerCase())) {
+							commandAliases.add("save");
+						}
+					}
 				}
 			}
 			

src/me/goodandevil/skyblock/island/Island.java

@@ -146,12 +146,12 @@ public class Island {
 			}.runTask(plugin);
 		}
 		
-		level = new Level(this, plugin);
+		level = new Level(getOwnerUUID(), plugin);
 		
 		VisitManager visitManager = plugin.getVisitManager();
 		
 		if (!visitManager.hasIsland(getOwnerUUID())) {
-			visitManager.createIsland(getOwnerUUID(), new org.bukkit.Location[] { getLocation(Location.World.Normal, Location.Environment.Island), getLocation(Location.World.Nether, Location.Environment.Island) }, size, getRole(Role.Member).size() + getRole(Role.Operator).size() + 1, level.getLevel(), getMessage(Message.Signature), isOpen());
+			visitManager.createIsland(getOwnerUUID(), new org.bukkit.Location[] { getLocation(Location.World.Normal, Location.Environment.Island), getLocation(Location.World.Nether, Location.Environment.Island) }, size, getRole(Role.Member).size() + getRole(Role.Operator).size() + 1, level, getMessage(Message.Signature), isOpen());
 		}
 		
 		BanManager banManager = plugin.getBanManager();

src/me/goodandevil/skyblock/island/IslandManager.java

@@ -39,6 +39,7 @@ import me.goodandevil.skyblock.structure.Structure;
 import me.goodandevil.skyblock.utils.OfflinePlayer;
 import me.goodandevil.skyblock.utils.structure.StructureUtil;
 import me.goodandevil.skyblock.utils.version.Materials;
+import me.goodandevil.skyblock.utils.version.NMSUtil;
 import me.goodandevil.skyblock.utils.world.LocationUtil;
 import me.goodandevil.skyblock.utils.world.WorldBorder;
 import me.goodandevil.skyblock.utils.world.block.BlockDegreesType;
@@ -185,12 +186,14 @@ public class IslandManager {
 			}
 		}.runTask(plugin);
 		
-		Bukkit.getServer().getScheduler().runTaskLater(plugin, new Runnable() {
+		if (NMSUtil.getVersionNumber() < 13) {
-			@Override
+			Bukkit.getServer().getScheduler().runTaskLater(plugin, new Runnable() {
-			public void run() {
+				@Override
-				plugin.getBiomeManager().setBiome(null, island, Biome.valueOf(fileManager.getConfig(new File(plugin.getDataFolder(), "config.yml")).getFileConfiguration().getString("Island.Biome.Default.Type").toUpperCase()));
+				public void run() {
-			}
+					plugin.getBiomeManager().setBiome(null, island, Biome.valueOf(fileManager.getConfig(new File(plugin.getDataFolder(), "config.yml")).getFileConfiguration().getString("Island.Biome.Default.Type").toUpperCase()));
-		}, 20L);
+				}
+			}, 20L);	
+		}
 	}
 	
 	public void giveIslandOwnership(UUID uuid) {
@@ -209,6 +212,7 @@ public class IslandManager {
 		
 		if (containsIsland(islandOwnerUUID)) {
 			Island island = getIsland(islandOwnerUUID);
+			island.getLevel().setOwnerUUID(uuid);
 			island.setOwnerUUID(uuid);
 			
 			Config config = fileManager.getConfig(new File(plugin.getDataFolder(), "config.yml"));

src/me/goodandevil/skyblock/island/Level.java

@@ -4,6 +4,7 @@ import java.io.File;
 import java.io.IOException;
 import java.util.HashMap;
 import java.util.Map;
+import java.util.UUID;
 
 import org.bukkit.configuration.file.FileConfiguration;
 
@@ -13,18 +14,19 @@ import me.goodandevil.skyblock.config.FileManager.Config;
 public class Level {
 	
 	private final Main plugin;
-	private final Island island;
+	
+	private UUID ownerUUID;
 	
 	private int lastLevel = 0;
 	private int lastPoints = 0;
 	
 	private Map<String, Integer> materials;
 	
-	public Level(Island island, Main plugin) {
+	public Level(UUID ownerUUID, Main plugin) {
-		this.island = island;
 		this.plugin = plugin;
+		this.ownerUUID = ownerUUID;
 		
-		Config config = plugin.getFileManager().getConfig(new File(new File(plugin.getDataFolder().toString() + "/island-data"), island.getOwnerUUID().toString() + ".yml"));
+		Config config = plugin.getFileManager().getConfig(new File(new File(plugin.getDataFolder().toString() + "/island-data"), ownerUUID.toString() + ".yml"));
 		FileConfiguration configLoad = config.getFileConfiguration();
 		
 		Map<String, Integer> materials = new HashMap<>();
@@ -40,6 +42,10 @@ public class Level {
 		this.materials = materials;
 	}
 	
+	public void setOwnerUUID(UUID ownerUUID) {
+		this.ownerUUID = ownerUUID;
+	}
+	
 	public int getPoints() {
 		Config config = plugin.getFileManager().getConfig(new File(plugin.getDataFolder(), "levelling.yml"));
 		FileConfiguration configLoad = config.getFileConfiguration();
@@ -72,7 +78,7 @@ public class Level {
 	}
 	
 	public void setMaterials(Map<String, Integer> materials) {
-		Config config = plugin.getFileManager().getConfig(new File(new File(plugin.getDataFolder().toString() + "/island-data"), island.getOwnerUUID().toString() + ".yml"));
+		Config config = plugin.getFileManager().getConfig(new File(new File(plugin.getDataFolder().toString() + "/island-data"), ownerUUID.toString() + ".yml"));
 		File configFile = config.getFile();
 		FileConfiguration configLoad = config.getFileConfiguration();
 		

src/me/goodandevil/skyblock/leaderboard/LeaderboardManager.java

@@ -2,9 +2,8 @@ package me.goodandevil.skyblock.leaderboard;
 
 import java.io.File;
 import java.util.ArrayList;
-import java.util.LinkedHashMap;
+import java.util.Comparator;
 import java.util.List;
-import java.util.Map;
 import java.util.UUID;
 
 import me.goodandevil.skyblock.Main;
@@ -28,23 +27,37 @@ public class LeaderboardManager {
 	public void resetLeaderboard() {
 		VisitManager visitManager = plugin.getVisitManager();
 		
-		Map<UUID, Integer> islandLevels = new LinkedHashMap<>();
+		List<LeaderboardPlayer> islandLevels = new ArrayList<>();
-		Map<UUID, Integer> islandVotes = new LinkedHashMap<>();
+		List<LeaderboardPlayer> islandVotes = new ArrayList<>();
 		
 		for (int i = 0; i < visitManager.getIslands().size(); i++) {
 			UUID ownerUUID = (UUID) visitManager.getIslands().keySet().toArray()[i];
 			Visit visit = visitManager.getIslands().get(ownerUUID);
-			islandLevels.put(ownerUUID, visit.getLevel());
+			islandLevels.add(new LeaderboardPlayer(ownerUUID, visit.getLevel().getLevel()));
-			islandVotes.put(ownerUUID, visit.getVoters().size());
+			islandVotes.add(new LeaderboardPlayer(ownerUUID, visit.getVoters().size()));
 		}
 		
+		islandLevels.sort(new Comparator<LeaderboardPlayer>() {
+			@Override
+			public int compare(LeaderboardPlayer leaderboardPlayer1, LeaderboardPlayer leaderboardPlayer2) {
+				return Integer.valueOf(leaderboardPlayer2.getValue()).compareTo(leaderboardPlayer1.getValue());
+			}
+		});
+		
+		islandVotes.sort(new Comparator<LeaderboardPlayer>() {
+			@Override
+			public int compare(LeaderboardPlayer leaderboardPlayer1, LeaderboardPlayer leaderboardPlayer2) {
+				return Integer.valueOf(leaderboardPlayer2.getValue()).compareTo(leaderboardPlayer1.getValue());
+			}
+		});
+		
 		for (int i = 0; i < 10; i++) {
 			if (islandLevels.size() != 0 && i <= islandLevels.size()-1) {
-				leaderboardStorage.add(new Leaderboard(Leaderboard.Type.Level, visitManager.getIsland((UUID) islandLevels.keySet().toArray()[i]), i));
+				leaderboardStorage.add(new Leaderboard(Leaderboard.Type.Level, visitManager.getIsland((UUID) islandLevels.get(i).getUUID()), i));
 			}
 			
 			if (islandVotes.size() != 0 && i <= islandVotes.size()-1) {
-				leaderboardStorage.add(new Leaderboard(Leaderboard.Type.Votes, visitManager.getIsland((UUID) islandLevels.keySet().toArray()[i]), i));
+				leaderboardStorage.add(new Leaderboard(Leaderboard.Type.Votes, visitManager.getIsland((UUID) islandLevels.get(i).getUUID()), i));
 			}
 		}
 	}

src/me/goodandevil/skyblock/leaderboard/LeaderboardPlayer.java

@@ -0,0 +1,22 @@
+package me.goodandevil.skyblock.leaderboard;
+
+import java.util.UUID;
+
+public class LeaderboardPlayer {
+
+	private UUID uuid;
+	private int value;
+	
+	public LeaderboardPlayer(UUID uuid, int value) {
+		this.uuid = uuid;
+		this.value = value;
+	}
+	
+	public UUID getUUID() {
+		return uuid;
+	}
+	
+	public int getValue() {
+		return value;
+	}
+}

src/me/goodandevil/skyblock/levelling/LevellingManager.java

@@ -155,7 +155,6 @@ public class LevellingManager {
 		    	    	level.setLastPoints(level.getPoints());
 		    	    	level.setLastLevel(level.getLevel());
 			    	    level.setMaterials(materials);
-			    	    island.getVisit().setLevel(level.getLevel());
 			    	    
 			    	    if (player != null) {
 			    	    	me.goodandevil.skyblock.menus.Levelling.getInstance().open(player);

src/me/goodandevil/skyblock/listeners/Move.java

@@ -12,6 +12,7 @@ import org.bukkit.event.Listener;
 import org.bukkit.event.player.PlayerMoveEvent;
 
 import me.goodandevil.skyblock.Main;
+import me.goodandevil.skyblock.config.FileManager;
 import me.goodandevil.skyblock.config.FileManager.Config;
 import me.goodandevil.skyblock.island.Island;
 import me.goodandevil.skyblock.island.IslandManager;
@@ -38,16 +39,48 @@ public class Move implements Listener {
 		Location to = event.getTo();
 
 		if (from.getX() != to.getX() || from.getY() != to.getY() || from.getZ() != to.getZ()) {
-			if (player.getWorld().getName().equals(plugin.getWorldManager().getWorld(me.goodandevil.skyblock.island.Location.World.Normal).getName()) || player.getWorld().getName().equals(plugin.getWorldManager().getWorld(me.goodandevil.skyblock.island.Location.World.Nether).getName())) {
+			String netherWorldName = plugin.getWorldManager().getWorld(me.goodandevil.skyblock.island.Location.World.Nether).getName();
+			
+			if (player.getWorld().getName().equals(plugin.getWorldManager().getWorld(me.goodandevil.skyblock.island.Location.World.Normal).getName()) || player.getWorld().getName().equals(netherWorldName)) {
 				PlayerDataManager playerDataManager = plugin.getPlayerDataManager();
+				IslandManager islandManager = plugin.getIslandManager();
 				SoundManager soundManager = plugin.getSoundManager();
+				FileManager fileManager = plugin.getFileManager();
+				
+				if (player.getWorld().getName().equals(netherWorldName)) {
+					if (!fileManager.getConfig(new File(plugin.getDataFolder(), "config.yml")).getFileConfiguration().getBoolean("Island.World.Nether.Enable")) {
+						player.sendMessage(ChatColor.translateAlternateColorCodes('&', fileManager.getConfig(new File(plugin.getDataFolder(), "language.yml")).getFileConfiguration().getString("Island.World.Nether.Message")));
+						
+						if (playerDataManager.hasPlayerData(player)) {
+							PlayerData playerData = playerDataManager.getPlayerData(player);
+							
+							if (playerData.getIsland() != null) {
+								Island island = islandManager.getIsland(playerData.getIsland());
+								
+								if (island != null) {
+									if (island.getVisit().isVisitor(player.getUniqueId())) {
+										player.teleport(island.getLocation(me.goodandevil.skyblock.island.Location.World.Normal, me.goodandevil.skyblock.island.Location.Environment.Visitor));
+									} else {
+										player.teleport(island.getLocation(me.goodandevil.skyblock.island.Location.World.Normal, me.goodandevil.skyblock.island.Location.Environment.Main));
+									}
+									
+									soundManager.playSound(player, Sounds.ENDERMAN_TELEPORT.bukkitSound(), 1.0F, 1.0F);
+									
+									return;
+								}
+							}
+						}
+						
+						LocationUtil.teleportPlayerToSpawn(player);
+						soundManager.playSound(player, Sounds.ENDERMAN_TELEPORT.bukkitSound(), 1.0F, 1.0F);
+					}
+				}
 				
 				if (playerDataManager.hasPlayerData(player)) {
 					PlayerData playerData = playerDataManager.getPlayerData(player);
 					UUID islandOwnerUUID = playerData.getIsland();
 					
 					if (islandOwnerUUID != null) {
-						IslandManager islandManager = plugin.getIslandManager();
 						Island island = islandManager.getIsland(islandOwnerUUID);
 						
 						if (island != null) {
@@ -60,7 +93,7 @@ public class Move implements Listener {
 							}
 							
 							if (world != null) {
-								Config config = plugin.getFileManager().getConfig(new File(plugin.getDataFolder(), "config.yml"));
+								Config config = fileManager.getConfig(new File(plugin.getDataFolder(), "config.yml"));
 								FileConfiguration configLoad = config.getFileConfiguration();
 								
 								if (configLoad.getBoolean("Island.World." + world.name() + ".Liquid.Enable")) {

src/me/goodandevil/skyblock/listeners/Portal.java

@@ -10,6 +10,7 @@ import org.bukkit.event.Listener;
 import org.bukkit.event.entity.EntityPortalEnterEvent;
 
 import me.goodandevil.skyblock.Main;
+import me.goodandevil.skyblock.config.FileManager;
 import me.goodandevil.skyblock.island.Island;
 import me.goodandevil.skyblock.island.Location;
 import me.goodandevil.skyblock.sound.SoundManager;
@@ -35,18 +36,19 @@ public class Portal implements Listener {
 		
 		IslandManager islandManager = plugin.getIslandManager();
 		SoundManager soundManager = plugin.getSoundManager();
+		FileManager fileManager = plugin.getFileManager();
 		
 		if (player.getWorld().getName().equals(plugin.getWorldManager().getWorld(Location.World.Normal).getName())) {
 			for (UUID islandList : islandManager.getIslands().keySet()) {
 				Island island = islandManager.getIslands().get(islandList);
 				
 				if (LocationUtil.isLocationAtLocationRadius(player.getLocation(), island.getLocation(Location.World.Normal, Location.Environment.Island), island.getRadius())) {
-					if (islandManager.hasPermission(player, "Portal")) {
+					if (fileManager.getConfig(new File(plugin.getDataFolder(), "config.yml")).getFileConfiguration().getBoolean("Island.World.Nether.Enable") && islandManager.hasPermission(player, "Portal")) {
 						player.teleport(island.getLocation(Location.World.Nether, Location.Environment.Main));
 						soundManager.playSound(player, Sounds.ENDERMAN_TELEPORT.bukkitSound(), 1.0F, 1.0F);
 					} else {
 						player.teleport(island.getLocation(Location.World.Normal, Location.Environment.Main));
-						player.sendMessage(ChatColor.translateAlternateColorCodes('&', plugin.getFileManager().getConfig(new File(plugin.getDataFolder(), "language.yml")).getFileConfiguration().getString("Island.Settings.Permission.Message")));
+						player.sendMessage(ChatColor.translateAlternateColorCodes('&', fileManager.getConfig(new File(plugin.getDataFolder(), "language.yml")).getFileConfiguration().getString("Island.Settings.Permission.Message")));
 						soundManager.playSound(player, Sounds.VILLAGER_NO.bukkitSound(), 1.0F, 1.0F);
 					}
 					
@@ -58,12 +60,12 @@ public class Portal implements Listener {
 				Island island = islandManager.getIslands().get(islandList);
 				
 				if (LocationUtil.isLocationAtLocationRadius(player.getLocation(), island.getLocation(Location.World.Nether, Location.Environment.Island), island.getRadius())) {
-					if (islandManager.hasPermission(player, "Portal")) {
+					if (fileManager.getConfig(new File(plugin.getDataFolder(), "config.yml")).getFileConfiguration().getBoolean("Island.World.Nether.Enable") && islandManager.hasPermission(player, "Portal")) {
 						player.teleport(island.getLocation(Location.World.Normal, Location.Environment.Main));
 						soundManager.playSound(player, Sounds.ENDERMAN_TELEPORT.bukkitSound(), 1.0F, 1.0F);
 					} else {
 						player.teleport(island.getLocation(Location.World.Nether, Location.Environment.Main));
-						player.sendMessage(ChatColor.translateAlternateColorCodes('&', plugin.getFileManager().getConfig(new File(plugin.getDataFolder(), "language.yml")).getFileConfiguration().getString("Island.Settings.Permission.Message")));
+						player.sendMessage(ChatColor.translateAlternateColorCodes('&', fileManager.getConfig(new File(plugin.getDataFolder(), "language.yml")).getFileConfiguration().getString("Island.Settings.Permission.Message")));
 						soundManager.playSound(player, Sounds.VILLAGER_NO.bukkitSound(), 1.0F, 1.0F);
 					}
 					

src/me/goodandevil/skyblock/menus/Leaderboard.java

@@ -125,7 +125,7 @@ public class Leaderboard implements Listener {
 					}
 				}
 				
-				inv.addItem(inv.createItem(SkullUtil.create(playerTexture[0], playerTexture[1]), configLoad.getString("Menu.Leaderboard.Leaderboard.Item.Island.Displayname").replace("%position", "" + (leaderboard.getPosition() + 1)), itemLore, inv.createItemLoreVariable(new String[] { "%position#" + (leaderboard.getPosition() + 1), "%owner#" + playerName, "%level#" + visit.getLevel(), "%votes#" + visit.getVoters().size(), "%members#" + visit.getMembers() }), null, null), itemSlot);
+				inv.addItem(inv.createItem(SkullUtil.create(playerTexture[0], playerTexture[1]), configLoad.getString("Menu.Leaderboard.Leaderboard.Item.Island.Displayname").replace("%position", "" + (leaderboard.getPosition() + 1)), itemLore, inv.createItemLoreVariable(new String[] { "%position#" + (leaderboard.getPosition() + 1), "%owner#" + playerName, "%level#" + visit.getLevel().getLevel(), "%votes#" + visit.getVoters().size(), "%members#" + visit.getMembers() }), null, null), itemSlot);
 			}
 			
 			int[] itemSlots = new int[] { 13, 21, 22, 23, 29, 31, 33, 37, 40, 43 };

src/me/goodandevil/skyblock/menus/Visit.java

@@ -90,7 +90,7 @@ public class Visit implements Listener {
 						islandInteger = islandManager.getPlayersAtIsland(islandManager.getIsland(visitIslandList)).size();
 					}
 				} else if (sort == Visit.Sort.Level) {
-					islandInteger = visitIslands.get(visitIslandList).getLevel();
+					islandInteger = visitIslands.get(visitIslandList).getLevel().getLevel();
 				} else if (sort == Visit.Sort.Members) {
 					islandInteger = visitIslands.get(visitIslandList).getMembers();
 				} else if (sort == Visit.Sort.Visits) {
@@ -333,7 +333,7 @@ public class Visit implements Listener {
 		    				
 				    		if ((!island.isRole(Role.Member, player.getUniqueId()) && !island.isRole(Role.Operator, player.getUniqueId()) && !island.isRole(Role.Owner, player.getUniqueId())) && fileManager.getConfig(new File(plugin.getDataFolder(), "config.yml")).getFileConfiguration().getBoolean("Island.Visitor.Vote")) {
 				    			if (event.getClick() == ClickType.RIGHT) {
-				    				if (playerData.getIsland().equals(island.getOwnerUUID())) {
+				    				if (playerData.getIsland() != null && playerData.getIsland().equals(island.getOwnerUUID())) {
 				    					List<UUID> islandVotes = visit.getVoters();
 				    					
 				    					if (islandVotes.contains(player.getUniqueId())) {

src/me/goodandevil/skyblock/utils/version/NMSUtil.java

@@ -17,6 +17,11 @@ public class NMSUtil {
 	    return Integer.valueOf(name.substring(0, name.length() - 4));
 	}
 	
+	public static int getVersionReleaseNumber() {
+		String NMSVersion = getVersion();
+		return Integer.valueOf(NMSVersion.substring(NMSVersion.length() - 2).replace(".", ""));
+	}
+	
     public static Class<?> getNMSClass(String className) {
         try {
             String fullName = "net.minecraft.server." + getVersion() + className;

src/me/goodandevil/skyblock/utils/world/block/BlockUtil.java

@@ -401,7 +401,12 @@ public final class BlockUtil {
         		Object block = NMSUtil.getNMSClass("Blocks").getField(material.name()).get(null);
         		Object IBlockData = block.getClass().getMethod("getBlockData").invoke(block);
         		worldHandle.getClass().getMethod("setTypeAndData", blockPosition.getClass(), IBlockDataClass, int.class).invoke(worldHandle, blockPosition, IBlockData, 2);
-        		chunk.getClass().getMethod("setType", blockPosition.getClass(), IBlockDataClass, boolean.class).invoke(chunk, blockPosition, IBlockData, true);
+        		
+        		if (NMSUtil.getVersionReleaseNumber() > 1) {
+            		chunk.getClass().getMethod("setType", blockPosition.getClass(), IBlockDataClass, boolean.class).invoke(chunk, blockPosition, IBlockData, true);
+        		} else {
+            		chunk.getClass().getMethod("a", blockPosition.getClass(), IBlockDataClass, boolean.class).invoke(chunk, blockPosition, IBlockData, true);
+        		}        		
         	} else {
         		Object IBlockData = NMSUtil.getNMSClass("Block").getMethod("getByCombinedId", int.class).invoke(null, material.getId() + (data << 12));
         		worldHandle.getClass().getMethod("setTypeAndData", blockPosition.getClass(), IBlockDataClass, int.class).invoke(worldHandle, blockPosition, IBlockData, 3);

src/me/goodandevil/skyblock/visit/Visit.java

@@ -11,6 +11,7 @@ import org.bukkit.configuration.file.FileConfiguration;
 
 import me.goodandevil.skyblock.Main;
 import me.goodandevil.skyblock.config.FileManager.Config;
+import me.goodandevil.skyblock.island.Level;
 
 public class Visit {
 
@@ -22,13 +23,14 @@ public class Visit {
 	
 	private int islandSize;
 	private int islandMembers;
-	private int islandLevel;
+	
+	private final Level islandLevel;
 	
 	private List<String> islandSignature;
 	
 	private boolean open;
 	
-	protected Visit(Main plugin, UUID islandOwnerUUID, Location[] islandLocations, int islandSize, int islandMembers, int islandLevel, List<String> islandSignature, boolean open) {
+	protected Visit(Main plugin, UUID islandOwnerUUID, Location[] islandLocations, int islandSize, int islandMembers, Level islandLevel, List<String> islandSignature, boolean open) {
 		this.plugin = plugin;
 		this.islandOwnerUUID = islandOwnerUUID;
 		this.islandLocations = islandLocations;
@@ -73,14 +75,10 @@ public class Visit {
 		this.islandSize = islandSize;
 	}
 	
-	public int getLevel() {
+	public Level getLevel() {
 		return islandLevel;
 	}
 	
-	public void setLevel(int islandLevel) {
-		this.islandLevel = islandLevel;
-	}
-	
 	public boolean isVisitor(UUID uuid) {
 		return getVisitors().contains(uuid);
 	}

src/me/goodandevil/skyblock/visit/VisitManager.java

@@ -19,6 +19,7 @@ import me.goodandevil.skyblock.Main;
 import me.goodandevil.skyblock.config.FileManager;
 import me.goodandevil.skyblock.config.FileManager.Config;
 import me.goodandevil.skyblock.island.Island;
+import me.goodandevil.skyblock.island.Level;
 import me.goodandevil.skyblock.sound.SoundManager;
 import me.goodandevil.skyblock.utils.version.Sounds;
 import me.goodandevil.skyblock.utils.world.LocationUtil;
@@ -73,7 +74,7 @@ public class VisitManager {
 						size = configLoad.getInt("Size");
 					}
 					
-					createIsland(islandOwnerUUID, new Location[] { fileManager.getLocation(config, "Location.Normal.Island", true), fileManager.getLocation(config, "Location.Nether.Island", true) }, size, configLoad.getStringList("Members").size() + configLoad.getStringList("Operators").size() + 1, configLoad.getInt("Levelling.Points") / division, islandSignature, configLoad.getBoolean("Visitor.Open"));
+					createIsland(islandOwnerUUID, new Location[] { fileManager.getLocation(config, "Location.Normal.Island", true), fileManager.getLocation(config, "Location.Nether.Island", true) }, size, configLoad.getStringList("Members").size() + configLoad.getStringList("Operators").size() + 1, new Level(islandOwnerUUID, plugin), islandSignature, configLoad.getBoolean("Visitor.Open"));
 				}
 			}
 		}
@@ -81,6 +82,8 @@ public class VisitManager {
 	
 	public void transfer(UUID uuid, UUID islandOwnerUUID) {
 		Visit visit = getIsland(islandOwnerUUID);
+		visit.setOwnerUUID(uuid);
+		visit.getLevel().setOwnerUUID(uuid);
 		visit.save();
 		
 		File oldVisitDataFile = new File(new File(plugin.getDataFolder().toString() + "/visit-data"), islandOwnerUUID.toString() + ".yml");
@@ -146,7 +149,7 @@ public class VisitManager {
 		return visitIslands;
 	}
 	
-	public void createIsland(UUID islandOwnerUUID, Location[] islandLocations, int islandSize, int islandMembers, int islandLevel, List<String> islandSignature, boolean open) {
+	public void createIsland(UUID islandOwnerUUID, Location[] islandLocations, int islandSize, int islandMembers, Level islandLevel, List<String> islandSignature, boolean open) {
 		visitStorage.put(islandOwnerUUID, new Visit(plugin, islandOwnerUUID, islandLocations, islandSize, islandMembers, islandLevel, islandSignature, open));
 	}