Updates changelog and version to 0.9.0.4

Un-leashes and re-leashes teleported leashed entities
Delays leashed creature teleportation and the re-leashing to prevent odd behavior such as infinite leash or no-ai creature

README.md

@@ -301,6 +301,7 @@ gates:
   functionality:
     enableBungee - Enable this for BungeeCord support. This allows portals across Bungee servers.
     handleVehicles - Whether or not to handle vehicles going through gates. Set to false to disallow vehicles (Manned or not) going through gates.
+    handleLeashedCreatures - Whether or not to handle creatures leashed by a player going through gates. Set to false to disallow leashed creatures going through gates.
 economy:
   useEconomy - Whether or not to enable Economy using Vault (must have the Vault plugin)
   createCost - The cost to create a stargate
@@ -367,6 +368,21 @@ bungeeSign=Teleport to
 
 # Changes
 
+#### \[Version 0.9.0.4] EpicKnarvik97 fork
+
+- Adds teleportation of leashed creatures. By default, any creature connected to a player by a lead will be teleported
+  with the player through stargates, even if the player is in a vehicle. This behavior can be disabled in the config
+  file.
+
+#### \[Version 0.9.0.3] EpicKnarvik97 fork
+
+- Adds a missing error message when a player in a vehicle cannot pay the teleportation fee
+- Adds UUID migration to automatically update player names to UUID when possible
+
+#### \[Version 0.9.0.2] EpicKnarvik97 fork
+
+- Fixes a bug causing Stargates using NETHER_PORTAL blocks to generate nether portals in the nether.
+
 #### \[Version 0.9.0.1] EpicKnarvik97 fork
 
 - Adds the highlightSignColor option and renames the signColor option to mainSignColor

pom.xml

@@ -4,7 +4,7 @@
 
     <groupId>net.knarcraft</groupId>
     <artifactId>Stargate</artifactId>
-    <version>0.9.0.1</version>
+    <version>0.9.0.4</version>
 
     <licenses>
         <license>

src/main/java/net/knarcraft/stargate/config/StargateGateConfig.java

@@ -13,6 +13,7 @@ public final class StargateGateConfig {
     private int maxGatesEachNetwork = 0;
     private boolean rememberDestination = false;
     private boolean handleVehicles = true;
+    private boolean handleLeashedCreatures = true;
     private boolean sortNetworkDestinations = false;
     private boolean protectEntrance = false;
     private boolean enableBungee = true;
@@ -76,6 +77,15 @@ public final class StargateGateConfig {
         return handleVehicles;
     }
 
+    /**
+     * Gets whether leashed creatures should be teleported with a teleporting player
+     *
+     * @return <p>Whether leashed creatures should be handled</p>
+     */
+    public boolean handleLeashedCreatures() {
+        return handleLeashedCreatures;
+    }
+
     /**
      * Gets whether the list of destinations within a network should be sorted
      *
@@ -142,6 +152,7 @@ public final class StargateGateConfig {
 
         //Functionality
         handleVehicles = newConfig.getBoolean("gates.functionality.handleVehicles");
+        handleLeashedCreatures = newConfig.getBoolean("gates.functionality.handleLeashedCreatures");
         enableBungee = newConfig.getBoolean("gates.functionality.enableBungee");
 
         //Integrity
@@ -173,5 +184,4 @@ public final class StargateGateConfig {
         Stargate.logWarning("You have specified an invalid color in your config.yml. Defaulting to BLACK and WHITE");
         PortalSignDrawer.setColors(ChatColor.BLACK, ChatColor.WHITE);
     }
-
 }

src/main/java/net/knarcraft/stargate/listener/PlayerEventListener.java

@@ -10,6 +10,7 @@ import net.knarcraft.stargate.portal.VehicleTeleporter;
 import net.knarcraft.stargate.utility.BungeeHelper;
 import net.knarcraft.stargate.utility.MaterialHelper;
 import net.knarcraft.stargate.utility.PermissionHelper;
+import net.knarcraft.stargate.utility.UUIDMigrationHelper;
 import org.bukkit.GameMode;
 import org.bukkit.block.Block;
 import org.bukkit.block.data.type.WallSign;
@@ -42,6 +43,9 @@ public class PlayerEventListener implements Listener {
      */
     @EventHandler
     public void onPlayerJoin(PlayerJoinEvent event) {
+        //Migrate player name to UUID if necessary
+        UUIDMigrationHelper.migrateUUID(event.getPlayer());
+
         if (!Stargate.getGateConfig().enableBungee()) {
             return;
         }
@@ -154,7 +158,7 @@ public class PlayerEventListener implements Listener {
 
         //Decide if the user should be teleported to another bungee server
         if (entrancePortal.getOptions().isBungee()) {
-            if (bungeeTeleport(player, entrancePortal, event)) {
+            if (BungeeHelper.bungeeTeleport(player, entrancePortal, event)) {
                 Stargate.getMessageSender().sendSuccessMessage(player, Stargate.getString("teleportMsg"));
             }
             return false;
@@ -306,39 +310,4 @@ public class PlayerEventListener implements Listener {
         return false;
     }
 
-    /**
-     * Teleports a player to a bungee gate
-     *
-     * @param player         <p>The player to teleport</p>
-     * @param entrancePortal <p>The gate the player is entering from</p>
-     * @param event          <p>The event causing the teleportation</p>
-     * @return <p>True if the teleportation was successful</p>
-     */
-    private boolean bungeeTeleport(Player player, Portal entrancePortal, PlayerMoveEvent event) {
-        //Check if bungee is actually enabled
-        if (!Stargate.getGateConfig().enableBungee()) {
-            Stargate.getMessageSender().sendErrorMessage(player, Stargate.getString("bungeeDisabled"));
-            entrancePortal.getPortalOpener().closePortal(false);
-            return false;
-        }
-
-        //Teleport the player back to this gate, for sanity's sake
-        new PlayerTeleporter(entrancePortal, player).teleport(entrancePortal, event);
-
-        //Send the SGBungee packet first, it will be queued by BC if required
-        if (!BungeeHelper.sendTeleportationMessage(player, entrancePortal)) {
-            Stargate.debug("bungeeTeleport", "Unable to send teleportation message");
-            return false;
-        }
-
-        //Send the connect-message to make the player change server
-        if (!BungeeHelper.changeServer(player, entrancePortal)) {
-            Stargate.debug("bungeeTeleport", "Unable to change server");
-            return false;
-        }
-
-        Stargate.debug("bungeeTeleport", "Teleported player to another server");
-        return true;
-    }
-
 }

src/main/java/net/knarcraft/stargate/listener/PortalEventListener.java

@@ -1,5 +1,6 @@
 package net.knarcraft.stargate.listener;
 
+import net.knarcraft.stargate.Stargate;
 import net.knarcraft.stargate.container.FromTheEndTeleportation;
 import net.knarcraft.stargate.portal.PlayerTeleporter;
 import net.knarcraft.stargate.portal.Portal;
@@ -8,7 +9,6 @@ import net.knarcraft.stargate.utility.PermissionHelper;
 import org.bukkit.Location;
 import org.bukkit.Material;
 import org.bukkit.World;
-import org.bukkit.block.BlockState;
 import org.bukkit.entity.Entity;
 import org.bukkit.entity.Player;
 import org.bukkit.event.EventHandler;
@@ -37,11 +37,14 @@ public class PortalEventListener implements Listener {
         if (event.isCancelled()) {
             return;
         }
-        //Cancel nether portal creation when the portal is a StarGate portal
-        for (BlockState block : event.getBlocks()) {
-            if (PortalHandler.getByBlock(block.getBlock()) != null) {
+        //Unnecessary nether portal creation is only triggered by nether pairing
+        if (event.getReason() == PortalCreateEvent.CreateReason.NETHER_PAIR) {
+            //If an entity is standing in a Stargate entrance, it can be assumed that the creation is a mistake
+            Entity entity = event.getEntity();
+            if (entity != null && PortalHandler.getByAdjacentEntrance(entity.getLocation()) != null) {
+                Stargate.debug("PortalEventListener::onPortalCreation",
+                        "Cancelled nether portal create event");
                 event.setCancelled(true);
-                return;
             }
         }
     }

src/main/java/net/knarcraft/stargate/listener/VehicleEventListener.java

@@ -154,9 +154,13 @@ public class VehicleEventListener implements Listener {
             return false;
         }
 
-        //Transfer payment if necessary
+        //Check if the player is able to afford the teleport fee
         int cost = Stargate.getEconomyConfig().getUseCost(player, entrancePortal, destinationPortal);
-        return cost <= 0 || Stargate.getEconomyConfig().canAffordFee(player, cost);
+        boolean canAffordFee = cost <= 0 || Stargate.getEconomyConfig().canAffordFee(player, cost);
+        if (!canAffordFee) {
+            Stargate.getMessageSender().sendErrorMessage(player, Stargate.getString("ecoInFunds"));
+        }
+        return canAffordFee;
     }
 
 }

src/main/java/net/knarcraft/stargate/portal/EntityTeleporter.java

@@ -0,0 +1,69 @@
+package net.knarcraft.stargate.portal;
+
+import net.knarcraft.stargate.Stargate;
+import net.knarcraft.stargate.event.StargateEntityPortalEvent;
+import org.bukkit.Location;
+import org.bukkit.entity.Entity;
+
+/**
+ * The portal teleporter takes care of the actual portal teleportation for any entities
+ */
+public class EntityTeleporter extends Teleporter {
+
+    private final Entity teleportingEntity;
+
+    /**
+     * Instantiates a new portal teleporter
+     *
+     * @param portal <p>The portal which is the target of the teleportation</p>
+     */
+    public EntityTeleporter(Portal portal, Entity teleportingEntity) {
+        super(portal);
+        this.teleportingEntity = teleportingEntity;
+    }
+
+    /**
+     * Teleports an entity to this teleporter's portal
+     *
+     * @param origin <p>The portal the entity is teleporting from</p>
+     */
+    public void teleport(Portal origin) {
+        Location traveller = teleportingEntity.getLocation();
+        Location exit = getExit(teleportingEntity, traveller);
+
+        //Rotate the entity to face out from the portal
+        adjustRotation(exit);
+
+        //Call the StargateEntityPortalEvent to allow plugins to change destination
+        if (!origin.equals(portal)) {
+            exit = triggerEntityPortalEvent(origin, exit);
+            if (exit == null) {
+                return;
+            }
+        }
+
+        //Load chunks to make sure not to teleport to the void
+        loadChunks();
+
+        teleportingEntity.teleport(exit);
+    }
+
+    /**
+     * Triggers the entity portal event to allow plugins to change the exit location
+     *
+     * @param origin <p>The origin portal teleported from</p>
+     * @param exit   <p>The exit location to teleport the entity to</p>
+     * @return <p>The location the entity should be teleported to, or null if the event was cancelled</p>
+     */
+    protected Location triggerEntityPortalEvent(Portal origin, Location exit) {
+        StargateEntityPortalEvent stargateEntityPortalEvent = new StargateEntityPortalEvent(teleportingEntity, origin,
+                portal, exit);
+        Stargate.getInstance().getServer().getPluginManager().callEvent(stargateEntityPortalEvent);
+        //Teleport is cancelled. Teleport the entity back to where it came from just for sanity's sake
+        if (stargateEntityPortalEvent.isCancelled()) {
+            new EntityTeleporter(origin, teleportingEntity).teleport(origin);
+            return null;
+        }
+        return stargateEntityPortalEvent.getExit();
+    }
+}

src/main/java/net/knarcraft/stargate/portal/PlayerTeleporter.java

@@ -48,6 +48,9 @@ public class PlayerTeleporter extends Teleporter {
         //Load chunks to make sure not to teleport to the void
         loadChunks();
 
+        //Teleport any creatures leashed by the player in a 15-block range
+        teleportLeashedCreatures(player, origin);
+
         //If no event is passed in, assume it's a teleport, and act as such
         if (event == null) {
             player.teleport(exit);

src/main/java/net/knarcraft/stargate/portal/PortalOwner.java

@@ -43,6 +43,22 @@ public class PortalOwner {
         return ownerUUID;
     }
 
+    /**
+     * Sets the unique id for a portal owner without one
+     *
+     * <p>This method is only meant to be used to set the unique id for an owner without one. If the owner already has
+     * an unique id, an exception will be thrown.</p>
+     *
+     * @param uniqueId <p>The new unique id for the portal owner</p>
+     */
+    public void setUUID(UUID uniqueId) {
+        if (ownerUUID == null) {
+            ownerUUID = uniqueId;
+        } else {
+            throw new IllegalArgumentException("An existing UUID cannot be overwritten.");
+        }
+    }
+
     /**
      * Gets the name of this owner
      *

src/main/java/net/knarcraft/stargate/portal/Teleporter.java

@@ -13,7 +13,9 @@ import org.bukkit.block.data.Bisected;
 import org.bukkit.block.data.BlockData;
 import org.bukkit.block.data.type.Slab;
 import org.bukkit.entity.AbstractHorse;
+import org.bukkit.entity.Creature;
 import org.bukkit.entity.Entity;
+import org.bukkit.entity.Player;
 import org.bukkit.scheduler.BukkitScheduler;
 
 import java.util.ArrayList;
@@ -247,4 +249,47 @@ public abstract class Teleporter {
         return chunksToLoad;
     }
 
+    /**
+     * Teleports any creatures leashed by the player
+     *
+     * @param player <p>The player which is teleported</p>
+     * @param origin <p>The portal the player is teleporting from</p>
+     */
+    protected void teleportLeashedCreatures(Player player, Portal origin) {
+        //If this feature is disabled, just return
+        if (!Stargate.getGateConfig().handleLeashedCreatures()) {
+            return;
+        }
+
+        //Find any nearby leashed entities to teleport with the player
+        List<Creature> nearbyEntities = getLeashedCreatures(player);
+        //Teleport all creatures leashed by the player to the portal the player is to exit from
+        for (Creature creature : nearbyEntities) {
+            creature.setLeashHolder(null);
+            scheduler.scheduleSyncDelayedTask(Stargate.getInstance(), () -> {
+                new EntityTeleporter(portal, creature).teleport(origin);
+                scheduler.scheduleSyncDelayedTask(Stargate.getInstance(), () -> creature.setLeashHolder(player), 3);
+            }, 2);
+        }
+    }
+
+    /**
+     * Gets all creatures leashed by a player within the given range
+     *
+     * @param player <p>The player to check</p>
+     * @return <p>A list of all creatures the player is holding in a leash (lead)</p>
+     */
+    protected List<Creature> getLeashedCreatures(Player player) {
+        List<Creature> leashedCreatures = new ArrayList<>();
+        //Find any nearby leashed entities to teleport with the player
+        List<Entity> nearbyEntities = player.getNearbyEntities(15, 15, 15);
+        //Teleport all creatures leashed by the player to the portal the player is to exit from
+        for (Entity entity : nearbyEntities) {
+            if (entity instanceof Creature creature && creature.isLeashed() && creature.getLeashHolder() == player) {
+                leashedCreatures.add(creature);
+            }
+        }
+        return leashedCreatures;
+    }
+
 }

src/main/java/net/knarcraft/stargate/portal/VehicleTeleporter.java

@@ -1,12 +1,12 @@
 package net.knarcraft.stargate.portal;
 
 import net.knarcraft.stargate.Stargate;
-import net.knarcraft.stargate.event.StargateEntityPortalEvent;
 import net.knarcraft.stargate.utility.DirectionHelper;
 import org.bukkit.Location;
 import org.bukkit.World;
 import org.bukkit.entity.Entity;
 import org.bukkit.entity.LivingEntity;
+import org.bukkit.entity.Player;
 import org.bukkit.entity.Vehicle;
 import org.bukkit.util.Vector;
 
@@ -15,7 +15,7 @@ import java.util.List;
 /**
  * The portal teleporter takes care of the actual portal teleportation for any vehicles
  */
-public class VehicleTeleporter extends Teleporter {
+public class VehicleTeleporter extends EntityTeleporter {
 
     private final Vehicle teleportingVehicle;
 
@@ -26,7 +26,7 @@ public class VehicleTeleporter extends Teleporter {
      * @param teleportingVehicle <p>The teleporting vehicle</p>
      */
     public VehicleTeleporter(Portal portal, Vehicle teleportingVehicle) {
-        super(portal);
+        super(portal, teleportingVehicle);
         this.teleportingVehicle = teleportingVehicle;
     }
 
@@ -36,8 +36,9 @@ public class VehicleTeleporter extends Teleporter {
      * <p>It is assumed that if a vehicle contains any players, their permissions have already been validated before
      * calling this method.</p>
      *
-     * @param origin <p>The portal the vehicle teleports from</p>
+     * @param origin <p>The portal the vehicle is teleporting from</p>
      */
+    @Override
     public void teleport(Portal origin) {
         Location traveller = teleportingVehicle.getLocation();
         Location exit = getExit(teleportingVehicle, traveller);
@@ -63,7 +64,7 @@ public class VehicleTeleporter extends Teleporter {
         }
 
         //Teleport the vehicle
-        teleportVehicle(exit, newVelocity);
+        teleportVehicle(exit, newVelocity, origin);
     }
 
     /**
@@ -71,8 +72,9 @@ public class VehicleTeleporter extends Teleporter {
      *
      * @param exit        <p>The location the vehicle should be teleported to</p>
      * @param newVelocity <p>The velocity to give the vehicle right after teleportation</p>
+     * @param origin      <p>The portal the vehicle teleported from</p>
      */
-    private void teleportVehicle(Location exit, Vector newVelocity) {
+    private void teleportVehicle(Location exit, Vector newVelocity, Portal origin) {
         //Load chunks to make sure not to teleport to the void
         loadChunks();
 
@@ -80,10 +82,10 @@ public class VehicleTeleporter extends Teleporter {
         if (!passengers.isEmpty()) {
             if (!(teleportingVehicle instanceof LivingEntity)) {
                 //Teleport a normal vehicle with passengers (minecart or boat)
-                putPassengersInNewVehicle(passengers, exit, newVelocity);
+                putPassengersInNewVehicle(passengers, exit, newVelocity, origin);
             } else {
                 //Teleport a living vehicle with passengers (pig, horse, donkey, strider)
-                teleportLivingVehicle(exit, passengers);
+                teleportLivingVehicle(exit, passengers, origin);
             }
         } else {
             //Teleport an empty vehicle
@@ -93,35 +95,17 @@ public class VehicleTeleporter extends Teleporter {
         }
     }
 
-    /**
-     * Triggers the entity portal event to allow plugins to change the exit location
-     *
-     * @param origin <p>The origin portal teleported from</p>
-     * @param exit   <p>The exit location to teleport the vehicle to</p>
-     * @return <p>The location the vehicle should be teleported to, or null if the event was cancelled</p>
-     */
-    private Location triggerEntityPortalEvent(Portal origin, Location exit) {
-        StargateEntityPortalEvent stargateEntityPortalEvent = new StargateEntityPortalEvent(teleportingVehicle, origin,
-                portal, exit);
-        Stargate.getInstance().getServer().getPluginManager().callEvent(stargateEntityPortalEvent);
-        //Teleport is cancelled. Teleport the entity back to where it came from just for sanity's sake
-        if (stargateEntityPortalEvent.isCancelled()) {
-            new VehicleTeleporter(origin, teleportingVehicle).teleport(origin);
-            return null;
-        }
-        return stargateEntityPortalEvent.getExit();
-    }
-
     /**
      * Teleport a vehicle which is not a minecart or a boat
      *
      * @param exit       <p>The location the vehicle will exit</p>
      * @param passengers <p>The passengers of the vehicle</p>
+     * @param origin     <p>The portal the vehicle teleported from</p>
      */
-    private void teleportLivingVehicle(Location exit, List<Entity> passengers) {
+    private void teleportLivingVehicle(Location exit, List<Entity> passengers, Portal origin) {
         teleportingVehicle.eject();
         teleportingVehicle.teleport(exit);
-        handleVehiclePassengers(passengers, teleportingVehicle, 2);
+        handleVehiclePassengers(passengers, teleportingVehicle, 2, origin);
     }
 
     /**
@@ -134,9 +118,10 @@ public class VehicleTeleporter extends Teleporter {
      * @param passengers  <p>A list of all passengers in the vehicle</p>
      * @param exit        <p>The exit location to spawn the new vehicle on</p>
      * @param newVelocity <p>The new velocity of the new vehicle</p>
+     * @param origin      <p>The portal the vehicle teleported from</p>
      */
     private void putPassengersInNewVehicle(List<Entity> passengers, Location exit,
-                                           Vector newVelocity) {
+                                           Vector newVelocity, Portal origin) {
         World vehicleWorld = exit.getWorld();
         if (vehicleWorld == null) {
             Stargate.logWarning("Unable to get the world to teleport the vehicle to");
@@ -149,7 +134,7 @@ public class VehicleTeleporter extends Teleporter {
         teleportingVehicle.remove();
         //Set rotation, add passengers and restore velocity
         newVehicle.setRotation(exit.getYaw(), exit.getPitch());
-        handleVehiclePassengers(passengers, newVehicle, 1);
+        handleVehiclePassengers(passengers, newVehicle, 1, origin);
         scheduler.scheduleSyncDelayedTask(Stargate.getInstance(), () -> newVehicle.setVelocity(newVelocity), 1);
     }
 
@@ -159,12 +144,18 @@ public class VehicleTeleporter extends Teleporter {
      * @param passengers <p>The passengers to handle</p>
      * @param vehicle    <p>The vehicle the passengers should be put into</p>
      * @param delay      <p>The amount of milliseconds to wait before adding the vehicle passengers</p>
+     * @param origin     <p>The portal the vehicle teleported from</p>
      */
-    private void handleVehiclePassengers(List<Entity> passengers, Vehicle vehicle, long delay) {
+    private void handleVehiclePassengers(List<Entity> passengers, Vehicle vehicle, long delay, Portal origin) {
         for (Entity passenger : passengers) {
             passenger.eject();
-            scheduler.scheduleSyncDelayedTask(Stargate.getInstance(), () -> teleportAndAddPassenger(vehicle, passenger),
-                    delay);
+            scheduler.scheduleSyncDelayedTask(Stargate.getInstance(), () -> {
+                if (passenger instanceof Player player) {
+                    //Teleport any creatures leashed by the player in a 15-block range
+                    teleportLeashedCreatures(player, origin);
+                }
+                teleportAndAddPassenger(vehicle, passenger);
+            }, delay);
         }
     }
 

src/main/java/net/knarcraft/stargate/utility/BungeeHelper.java

@@ -5,6 +5,7 @@ import net.knarcraft.stargate.portal.PlayerTeleporter;
 import net.knarcraft.stargate.portal.Portal;
 import net.knarcraft.stargate.portal.PortalHandler;
 import org.bukkit.entity.Player;
+import org.bukkit.event.player.PlayerMoveEvent;
 
 import java.io.ByteArrayInputStream;
 import java.io.ByteArrayOutputStream;
@@ -169,4 +170,39 @@ public final class BungeeHelper {
         }
     }
 
+    /**
+     * Teleports a player to a bungee gate
+     *
+     * @param player         <p>The player to teleport</p>
+     * @param entrancePortal <p>The gate the player is entering from</p>
+     * @param event          <p>The event causing the teleportation</p>
+     * @return <p>True if the teleportation was successful</p>
+     */
+    public static boolean bungeeTeleport(Player player, Portal entrancePortal, PlayerMoveEvent event) {
+        //Check if bungee is actually enabled
+        if (!Stargate.getGateConfig().enableBungee()) {
+            Stargate.getMessageSender().sendErrorMessage(player, Stargate.getString("bungeeDisabled"));
+            entrancePortal.getPortalOpener().closePortal(false);
+            return false;
+        }
+
+        //Teleport the player back to this gate, for sanity's sake
+        new PlayerTeleporter(entrancePortal, player).teleport(entrancePortal, event);
+
+        //Send the SGBungee packet first, it will be queued by BC if required
+        if (!BungeeHelper.sendTeleportationMessage(player, entrancePortal)) {
+            Stargate.debug("bungeeTeleport", "Unable to send teleportation message");
+            return false;
+        }
+
+        //Send the connect-message to make the player change server
+        if (!BungeeHelper.changeServer(player, entrancePortal)) {
+            Stargate.debug("bungeeTeleport", "Unable to change server");
+            return false;
+        }
+
+        Stargate.debug("bungeeTeleport", "Teleported player to another server");
+        return true;
+    }
+
 }

src/main/java/net/knarcraft/stargate/utility/UUIDMigrationHelper.java

@@ -0,0 +1,111 @@
+package net.knarcraft.stargate.utility;
+
+import net.knarcraft.stargate.Stargate;
+import net.knarcraft.stargate.portal.Portal;
+import net.knarcraft.stargate.portal.PortalHandler;
+import net.knarcraft.stargate.portal.PortalOwner;
+import net.knarcraft.stargate.portal.PortalRegistry;
+import org.bukkit.OfflinePlayer;
+import org.bukkit.World;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.UUID;
+
+/**
+ * Helps migrate player names to UUID where necessary
+ */
+public class UUIDMigrationHelper {
+
+    private static Map<String, List<Portal>> playerNamesToMigrate;
+
+    /**
+     * Migrates the player's name to a UUID
+     *
+     * <p>If any portals are missing a UUID for their owner, and the given player is the owner of those portals, the
+     * given player's UUID will be used as UUID for the portals' owner.</p>
+     *
+     * @param player <p>The player to migrate</p>
+     */
+    public static void migrateUUID(OfflinePlayer player) {
+        Map<String, List<Portal>> playersToMigrate = getPlayersToMigrate();
+        String playerName = player.getName();
+
+        //Nothing to do
+        if (!playersToMigrate.containsKey(playerName)) {
+            return;
+        }
+
+        Stargate.debug("PlayerEventListener::migrateUUID", String.format("Migrating name to UUID for player %s",
+                playerName));
+        List<Portal> portalsOwned = playersToMigrate.get(playerName);
+        if (portalsOwned == null) {
+            return;
+        }
+
+        migratePortalsToUUID(portalsOwned, player.getUniqueId());
+
+        //Remove the player to prevent the migration to happen every time the player joins
+        playersToMigrate.remove(playerName);
+    }
+
+    /**
+     * Migrates a list of portals to use UUID instead of only player name
+     *
+     * @param portals  <p>The portals to migrate</p>
+     * @param uniqueId <p>The unique ID of the portals' owner</p>
+     */
+    private static void migratePortalsToUUID(List<Portal> portals, UUID uniqueId) {
+        Set<World> worldsToSave = new HashSet<>();
+
+        //Get the real portal from the copy and set UUID
+        for (Portal portalCopy : portals) {
+            Portal portal = PortalHandler.getByName(portalCopy.getName(), portalCopy.getNetwork());
+            if (portal != null) {
+                portal.getOwner().setUUID(uniqueId);
+                worldsToSave.add(portal.getWorld());
+            }
+        }
+
+        //Need to make sure the changes are saved
+        for (World world : worldsToSave) {
+            PortalFileHelper.saveAllPortals(world);
+        }
+    }
+
+    /**
+     * Gets all player names which need to be migrated to UUIDs
+     *
+     * @return <p>The player names to migrate</p>
+     */
+    private static Map<String, List<Portal>> getPlayersToMigrate() {
+        //Make sure to only go through portals once
+        if (playerNamesToMigrate != null) {
+            return playerNamesToMigrate;
+        }
+
+        playerNamesToMigrate = new HashMap<>();
+        for (Portal portal : PortalRegistry.getAllPortals()) {
+            PortalOwner owner = portal.getOwner();
+            String ownerName = owner.getName();
+
+            //If a UUID is missing, add the portal to the list owned by the player
+            if (owner.getUUID() == null) {
+                List<Portal> portalList = playerNamesToMigrate.get(ownerName);
+                if (portalList == null) {
+                    List<Portal> newList = new ArrayList<>();
+                    newList.add(portal);
+                    playerNamesToMigrate.put(ownerName, newList);
+                } else {
+                    portalList.add(portal);
+                }
+            }
+        }
+        return playerNamesToMigrate;
+    }
+
+}

src/main/resources/config.yml

@@ -9,6 +9,7 @@
 # language - The language file to load for messages
 # rememberDestination - Whether to remember the cursor location between uses
 # handleVehicles - Whether to allow vehicles through gates
+# handleLeashedCreatures - Whether to allow creatures lead by a player to teleport with the player
 # sortNetworkDestinations - Whether to sort network lists alphabetically
 # protectEntrance - Whether to protect gate entrance material (More resource intensive. Only enable if using destroyable open/closed material)
 # mainSignColor - The color used for drawing signs (Default: BLACK).
@@ -49,6 +50,7 @@ gates:
   functionality:
     enableBungee: false
     handleVehicles: true
+    handleLeashedCreatures: true
 economy:
   useEconomy: false
   createCost: 0

src/main/resources/plugin.yml

@@ -1,6 +1,6 @@
 name: Stargate
 main: net.knarcraft.stargate.Stargate
-version: 0.9.0.1
+version: 0.9.0.4
 description: Stargate mod for Bukkit Revived
 author: EpicKnarvik97
 authors: [ Drakia, PseudoKnight, EpicKnarvik97 ]