!support for dungeons parties

src/main/java/net/Indyuce/mmocore/MMOCore.java

@@ -41,15 +41,20 @@ import net.Indyuce.mmocore.manager.profession.*;
 import net.Indyuce.mmocore.manager.social.BoosterManager;
 import net.Indyuce.mmocore.manager.social.PartyManager;
 import net.Indyuce.mmocore.manager.social.RequestManager;
+import net.Indyuce.mmocore.party.PartyModule;
+import net.Indyuce.mmocore.party.PartyModuleType;
+import net.Indyuce.mmocore.party.provided.MMOCorePartyModule;
 import net.Indyuce.mmocore.skill.cast.SkillCastingMode;
 import net.Indyuce.mmocore.skill.list.Ambers;
 import net.Indyuce.mmocore.skill.list.Neptune_Gift;
 import net.Indyuce.mmocore.skill.list.Sneaky_Picky;
+import org.apache.commons.lang.Validate;
 import org.bukkit.Bukkit;
 import org.bukkit.ChatColor;
 import org.bukkit.command.CommandMap;
 import org.bukkit.configuration.file.FileConfiguration;
 import org.bukkit.scheduler.BukkitRunnable;
+import org.jetbrains.annotations.NotNull;
 
 import java.io.File;
 import java.lang.reflect.Field;
@@ -83,6 +88,10 @@ public class MMOCore extends LuminePlugin {
 	public PlaceholderParser placeholderParser = new DefaultParser();
 	public DataProvider dataProvider = new YAMLDataProvider();
 
+	// Modules
+	@NotNull
+	public PartyModule partyModule;
+
 	// Profession managers
 	public final CustomBlockManager mineManager = new CustomBlockManager();
 	public final FishingManager fishingManager = new FishingManager();
@@ -214,14 +223,23 @@ public class MMOCore extends LuminePlugin {
 		if (getConfig().getBoolean("vanilla-exp-redirection.enabled"))
 			Bukkit.getPluginManager().registerEvents(new RedirectVanillaExp(getConfig().getDouble("vanilla-exp-redirection.ratio")), this);
 
-		/*
+		// Enable debug mode for extra debug tools
-		 * enable debug mode for extra debug tools.
-		 */
 		if (getConfig().contains("debug")) {
 			DebugMode.setLevel(getConfig().getInt("debug", 0));
 			DebugMode.enableActionBar();
 		}
 
+		// Load party module
+		try {
+			String partyPluginName = UtilityMethods.enumName(getConfig().getString("party-plugin"));
+			PartyModuleType moduleType = PartyModuleType.valueOf(partyPluginName);
+			Validate.isTrue(moduleType.isValid(), "Plugin '" + moduleType.name() + "' is not installed");
+			partyModule = moduleType.provideModule();
+		} catch (RuntimeException exception) {
+			getLogger().log(Level.WARNING, "Could not initialize party module: " + exception.getMessage());
+			partyModule = new MMOCorePartyModule();
+		}
+
 		// Skill casting
 		try {
 			SkillCastingMode mode = SkillCastingMode.valueOf(UtilityMethods.enumName(getConfig().getString("skill-casting.mode")));
@@ -247,7 +265,6 @@ public class MMOCore extends LuminePlugin {
 		Bukkit.getPluginManager().registerEvents(new GoldPouchesListener(), this);
 		Bukkit.getPluginManager().registerEvents(new BlockListener(), this);
 		Bukkit.getPluginManager().registerEvents(new LootableChestsListener(), this);
-		Bukkit.getPluginManager().registerEvents(new PartyListener(), this);
 		Bukkit.getPluginManager().registerEvents(new GuildListener(), this);
 		Bukkit.getPluginManager().registerEvents(new FishingListener(), this);
 		Bukkit.getPluginManager().registerEvents(new PlayerCollectStats(), this);

src/main/java/net/Indyuce/mmocore/api/event/social/PartyChatEvent.java

@@ -1,54 +1,54 @@
 package net.Indyuce.mmocore.api.event.social;
 
-import org.bukkit.event.Cancellable;
-import org.bukkit.event.HandlerList;
-
 import net.Indyuce.mmocore.api.event.PlayerDataEvent;
 import net.Indyuce.mmocore.api.player.PlayerData;
-import net.Indyuce.mmocore.api.player.social.Party;
+import net.Indyuce.mmocore.party.provided.Party;
+import org.bukkit.event.Cancellable;
+import org.bukkit.event.HandlerList;
 
 public class PartyChatEvent extends PlayerDataEvent implements Cancellable {
-	private static final HandlerList handlers = new HandlerList();
+    private static final HandlerList handlers = new HandlerList();
 
-	private final Party party;
+    private final Party party;
 
-	private boolean cancelled;
+    private boolean cancelled;
-	private String message;
+    private String message;
 
-	public PartyChatEvent(PlayerData playerData, String message) {
+    public PartyChatEvent(Party party, PlayerData playerData, String message) {
-		super(playerData);
+        super(playerData);
-		this.party = playerData.getParty();
-		this.message = message;
-	}
 
-	public void setMessage(String message) {
+        this.party = party;
-		this.message = message;
+        this.message = message;
-	}
+    }
 
-	public String getMessage() {
+    public void setMessage(String message) {
-		return message;
+        this.message = message;
-	}
+    }
 
-	public Party getParty() {
+    public String getMessage() {
-		return party;
+        return message;
-	}
+    }
 
-	@Override
+    public Party getParty() {
-	public boolean isCancelled() {
+        return party;
-		return cancelled;
+    }
-	}
 
-	@Override
+    @Override
-	public void setCancelled(boolean cancelled) {
+    public boolean isCancelled() {
-		this.cancelled = cancelled;
+        return cancelled;
-	}
+    }
 
-	@Override
+    @Override
-	public HandlerList getHandlers() {
+    public void setCancelled(boolean cancelled) {
-		return handlers;
+        this.cancelled = cancelled;
-	}
+    }
 
-	public static HandlerList getHandlerList() {
+    @Override
-		return handlers;
+    public HandlerList getHandlers() {
-	}
+        return handlers;
+    }
+
+    public static HandlerList getHandlerList() {
+        return handlers;
+    }
 }

src/main/java/net/Indyuce/mmocore/api/player/PlayerData.java

@@ -17,7 +17,6 @@ import net.Indyuce.mmocore.api.player.profess.SavedClassInformation;
 import net.Indyuce.mmocore.api.player.profess.Subclass;
 import net.Indyuce.mmocore.api.player.profess.resource.PlayerResource;
 import net.Indyuce.mmocore.api.player.social.FriendRequest;
-import net.Indyuce.mmocore.api.player.social.Party;
 import net.Indyuce.mmocore.api.player.social.guilds.Guild;
 import net.Indyuce.mmocore.api.player.stats.PlayerStats;
 import net.Indyuce.mmocore.api.player.stats.StatType;
@@ -27,6 +26,8 @@ import net.Indyuce.mmocore.api.util.MMOCoreUtils;
 import net.Indyuce.mmocore.api.util.math.particle.SmallParticleEffect;
 import net.Indyuce.mmocore.experience.EXPSource;
 import net.Indyuce.mmocore.experience.PlayerProfessions;
+import net.Indyuce.mmocore.party.AbstractParty;
+import net.Indyuce.mmocore.party.provided.Party;
 import net.Indyuce.mmocore.skill.ClassSkill;
 import net.Indyuce.mmocore.skill.RegisteredSkill;
 import net.Indyuce.mmocore.skill.cast.SkillCastingHandler;
@@ -63,7 +64,6 @@ public class PlayerData extends OfflinePlayerData implements Closable {
     private PlayerClass profess;
     private int level, experience, classPoints, skillPoints, attributePoints, attributeReallocationPoints;// skillReallocationPoints,
     private double mana, stamina, stellium;
-    private Party party;
     private Guild guild;
     private SkillCastingHandler skillCasting;
 
@@ -150,8 +150,9 @@ public class PlayerData extends OfflinePlayerData implements Closable {
     public void close() {
 
         // Remove from party
-        if (hasParty())
+        AbstractParty party = getParty();
-            getParty().removeMember(this);
+        if (party != null && party instanceof Party)
+            ((Party) party).removeMember(this);
 
         // Close quest data
         questData.close();
@@ -203,8 +204,9 @@ public class PlayerData extends OfflinePlayerData implements Closable {
         return Math.max(1, level);
     }
 
-    public Party getParty() {
+    @Nullable
-        return party;
+    public AbstractParty getParty() {
+        return MMOCore.plugin.partyModule.getParty(this);
     }
 
     public boolean hasGuild() {
@@ -246,10 +248,6 @@ public class PlayerData extends OfflinePlayerData implements Closable {
         return mmoData.isOnline();
     }
 
-    public boolean hasParty() {
-        return party != null;
-    }
-
     public boolean inGuild() {
         return guild != null;
     }
@@ -386,10 +384,6 @@ public class PlayerData extends OfflinePlayerData implements Closable {
         return friends.contains(uuid);
     }
 
-    public void setParty(Party party) {
-        this.party = party;
-    }
-
     public void setGuild(Guild guild) {
         this.guild = guild;
     }
@@ -502,7 +496,8 @@ public class PlayerData extends OfflinePlayerData implements Closable {
         value *= 1 + getStats().getStat(StatType.ADDITIONAL_EXPERIENCE) / 100;
 
         // Splitting exp through party members
-        if (splitExp && hasParty()) {
+        AbstractParty party = getParty();
+        if (splitExp && party != null) {
             List<PlayerData> onlineMembers = getParty().getOnlineMembers();
             value /= onlineMembers.size();
             for (PlayerData member : onlineMembers)

src/main/java/net/Indyuce/mmocore/command/PartyCommand.java

@@ -2,6 +2,7 @@ package net.Indyuce.mmocore.command;
 
 import java.util.UUID;
 
+import net.Indyuce.mmocore.party.provided.MMOCorePartyModule;
 import org.bukkit.Bukkit;
 import org.bukkit.ChatColor;
 import org.bukkit.OfflinePlayer;
@@ -13,7 +14,7 @@ import org.bukkit.entity.Player;
 import net.Indyuce.mmocore.MMOCore;
 import net.Indyuce.mmocore.api.event.MMOCommandEvent;
 import net.Indyuce.mmocore.api.player.PlayerData;
-import net.Indyuce.mmocore.api.player.social.PartyInvite;
+import net.Indyuce.mmocore.party.provided.PartyInvite;
 import net.Indyuce.mmocore.api.player.social.Request;
 import net.Indyuce.mmocore.manager.InventoryManager;
 
@@ -55,7 +56,7 @@ public class PartyCommand extends BukkitCommand {
 				return true;
 			}
 
-			if (!MMOCore.plugin.partyManager.isRegistered(((PartyInvite) request).getParty())) {
+			if (!((MMOCorePartyModule) MMOCore.plugin.partyModule).isRegistered(((PartyInvite) request).getParty())) {
 				MMOCore.plugin.requestManager.unregisterRequest(uuid);
 				return true;
 			}
@@ -67,7 +68,7 @@ public class PartyCommand extends BukkitCommand {
 			return true;
 		}
 
-		if (data.hasParty())
+		if (data.getParty() != null)
 			InventoryManager.PARTY_VIEW.newInventory(data).open();
 		else
 			InventoryManager.PARTY_CREATION.newInventory(data).open();

src/main/java/net/Indyuce/mmocore/comp/MMOCoreTargetRestriction.java

@@ -3,9 +3,12 @@ package net.Indyuce.mmocore.comp;
 import io.lumine.mythic.lib.comp.target.InteractionType;
 import io.lumine.mythic.lib.comp.target.TargetRestriction;
 import net.Indyuce.mmocore.api.player.PlayerData;
+import net.Indyuce.mmocore.party.AbstractParty;
 import org.bukkit.entity.LivingEntity;
 import org.bukkit.entity.Player;
 
+import java.util.Optional;
+
 public class MMOCoreTargetRestriction implements TargetRestriction {
 
     @Override
@@ -15,7 +18,8 @@ public class MMOCoreTargetRestriction implements TargetRestriction {
             PlayerData targetData = PlayerData.get(target.getUniqueId());
 
             // Check for the same party
-            if (targetData.hasParty() && targetData.getParty().hasMember(player))
+            AbstractParty party = targetData.getParty();
+            if (party != null && party.hasMember(player))
                 return false;
         }
 

src/main/java/net/Indyuce/mmocore/comp/placeholder/RPGPlaceholders.java

@@ -9,6 +9,7 @@ import net.Indyuce.mmocore.api.player.stats.StatType;
 import net.Indyuce.mmocore.api.quest.PlayerQuests;
 import net.Indyuce.mmocore.experience.PlayerProfessions;
 import net.Indyuce.mmocore.experience.Profession;
+import net.Indyuce.mmocore.party.AbstractParty;
 import net.Indyuce.mmocore.skill.RegisteredSkill;
 import org.bukkit.Bukkit;
 import org.bukkit.ChatColor;
@@ -117,8 +118,10 @@ public class RPGPlaceholders extends PlaceholderExpansion {
 			return "" + PlayerData.get(player).getCollectionSkills()
 					.getLevelUpExperience(identifier.substring(22).replace(" ", "-").replace("_", "-").toLowerCase());
 
-		else if (identifier.startsWith("party_count"))
+		else if (identifier.startsWith("party_count")) {
-			return playerData.hasParty() ? String.valueOf(playerData.getParty().getMembers().size()) : "0";
+			AbstractParty party = playerData.getParty();
+			return party == null ? "0" : String.valueOf(party.countMembers());
+		}
 
 		else if (identifier.startsWith("profession_"))
 			return String

src/main/java/net/Indyuce/mmocore/gui/PlayerStats.java

@@ -14,6 +14,7 @@ import net.Indyuce.mmocore.gui.api.GeneratedInventory;
 import net.Indyuce.mmocore.gui.api.item.InventoryItem;
 import net.Indyuce.mmocore.gui.api.item.Placeholders;
 import net.Indyuce.mmocore.gui.api.item.SimplePlaceholderItem;
+import net.Indyuce.mmocore.party.AbstractParty;
 import org.apache.commons.lang.Validate;
 import org.bukkit.ChatColor;
 import org.bukkit.configuration.ConfigurationSection;
@@ -177,7 +178,7 @@ public class PlayerStats extends EditableInventory {
 		public Placeholders getPlaceholders(GeneratedInventory inv, int n) {
 			Placeholders holders = new Placeholders();
 
-			int count = inv.getPlayerData().getParty().getMembers().size();
+			int count = inv.getPlayerData().getParty().getOnlineMembers().size();
 			holders.register("count", "" + count);
 			for (StatModifier buff : MMOCore.plugin.partyManager.getBonuses())
 				holders.register("buff_" + buff.getStat().toLowerCase(), buff.multiply(count - 1).toString());
@@ -187,7 +188,8 @@ public class PlayerStats extends EditableInventory {
 
 		@Override
 		public boolean canDisplay(GeneratedInventory inv) {
-			return inv.getPlayerData().hasParty() && inv.getPlayerData().getParty().getMembers().size() > 1;
+			AbstractParty party = inv.getPlayerData().getParty();
+			return party != null && party.getOnlineMembers().size() > 1;
 		}
 	}
 

src/main/java/net/Indyuce/mmocore/gui/social/party/EditablePartyCreation.java

@@ -7,6 +7,7 @@ import net.Indyuce.mmocore.gui.api.GeneratedInventory;
 import net.Indyuce.mmocore.gui.api.item.InventoryItem;
 import net.Indyuce.mmocore.gui.api.item.SimplePlaceholderItem;
 import net.Indyuce.mmocore.manager.InventoryManager;
+import net.Indyuce.mmocore.party.provided.MMOCorePartyModule;
 import org.bukkit.Sound;
 import org.bukkit.configuration.ConfigurationSection;
 import org.bukkit.event.inventory.InventoryClickEvent;
@@ -36,8 +37,8 @@ public class EditablePartyCreation extends EditableInventory {
 				return;
 
 			if (item.getFunction().equals("create")) {
-				MMOCore.plugin.partyManager.newRegisteredParty(playerData);
+                ((MMOCorePartyModule) MMOCore.plugin.partyModule).newRegisteredParty(playerData);
-				InventoryManager.PARTY_VIEW.newInventory(playerData).open();
+                InventoryManager.PARTY_VIEW.newInventory(playerData).open();
 				player.playSound(player.getLocation(), Sound.ENTITY_EXPERIENCE_ORB_PICKUP, 1, 1);
 			}
 

src/main/java/net/Indyuce/mmocore/gui/social/party/EditablePartyView.java

@@ -11,6 +11,7 @@ import net.Indyuce.mmocore.gui.api.GeneratedInventory;
 import net.Indyuce.mmocore.gui.api.item.InventoryItem;
 import net.Indyuce.mmocore.gui.api.item.Placeholders;
 import net.Indyuce.mmocore.gui.api.item.SimplePlaceholderItem;
+import net.Indyuce.mmocore.party.provided.Party;
 import org.apache.commons.lang.Validate;
 import org.bukkit.Bukkit;
 import org.bukkit.Material;
@@ -49,7 +50,8 @@ public class EditablePartyView extends EditableInventory {
 
 		@Override
 		public Placeholders getPlaceholders(GeneratedInventory inv, int n) {
-			PlayerData member = inv.getPlayerData().getParty().getMembers().get(n);
+			Party party = (Party) inv.getPlayerData().getParty();
+			PlayerData member = party.getMembers().get(n);
 
 			Placeholders holders = new Placeholders();
 			if (member.isOnline())
@@ -62,7 +64,8 @@ public class EditablePartyView extends EditableInventory {
 
 		@Override
 		public ItemStack display(GeneratedInventory inv, int n) {
-			PlayerData member = inv.getPlayerData().getParty().getMembers().get(n);
+			Party party = (Party) inv.getPlayerData().getParty();
+			PlayerData member = party.getMembers().get(n);
 
 			ItemStack disp = super.display(inv, n);
 			ItemMeta meta = disp.getItemMeta();
@@ -97,7 +100,8 @@ public class EditablePartyView extends EditableInventory {
 
 		@Override
 		public ItemStack display(GeneratedInventory inv, int n) {
-			return inv.getPlayerData().getParty().getMembers().size() > n ? member.display(inv, n) : empty.display(inv, n);
+			Party party = (Party) inv.getPlayerData().getParty();
+			return party.getMembers().size() > n ? member.display(inv, n) : empty.display(inv, n);
 		}
 
 		@Override
@@ -126,14 +130,16 @@ public class EditablePartyView extends EditableInventory {
 
 		@Override
 		public String calculateName() {
-			return getName().replace("{max}", "" + max).replace("{players}", "" + getPlayerData().getParty().getMembers().size());
+			Party party = (Party) getPlayerData().getParty();
+			return getName().replace("{max}", "" + max).replace("{players}", "" + party.getMembers().size());
 		}
 
 		@Override
 		public void whenClicked(InventoryClickEvent event, InventoryItem item) {
+			Party party = (Party) playerData.getParty();
 
 			if (item.getFunction().equals("leave")) {
-				playerData.getParty().removeMember(playerData);
+				party.removeMember(playerData);
 				player.playSound(player.getLocation(), Sound.ENTITY_EXPERIENCE_ORB_PICKUP, 1, 1);
 				player.closeInventory();
 				return;
@@ -141,7 +147,7 @@ public class EditablePartyView extends EditableInventory {
 
 			if (item.getFunction().equals("invite")) {
 
-				if (playerData.getParty().getMembers().size() >= max) {
+				if (party.getMembers().size() >= max) {
 					MMOCore.plugin.configManager.getSimpleMessage("party-is-full").send(player);
 					player.playSound(player.getLocation(), Sound.ENTITY_VILLAGER_NO, 1, 1);
 					return;
@@ -156,7 +162,7 @@ public class EditablePartyView extends EditableInventory {
 						return;
 					}
 
-					long remaining = playerData.getParty().getLastInvite(target) + 60 * 2 * 1000 - System.currentTimeMillis();
+					long remaining = party.getLastInvite(target) + 60 * 2 * 1000 - System.currentTimeMillis();
 					if (remaining > 0) {
 						MMOCore.plugin.configManager.getSimpleMessage("party-invite-cooldown", "player", target.getName(), "cooldown", new DelayFormat().format(remaining)).send(player);
 						open();
@@ -164,14 +170,14 @@ public class EditablePartyView extends EditableInventory {
 					}
 
 					PlayerData targetData = PlayerData.get(target);
-					if (playerData.getParty().hasMember(targetData)) {
+					if (party.hasMember(target)) {
 						MMOCore.plugin.configManager.getSimpleMessage("already-in-party", "player", target.getName()).send(player);
 						player.playSound(player.getLocation(), Sound.ENTITY_VILLAGER_NO, 1, 1);
 						open();
 						return;
 					}
 
-					playerData.getParty().sendInvite(playerData, targetData);
+					party.sendInvite(playerData, targetData);
 					MMOCore.plugin.configManager.getSimpleMessage("sent-party-invite", "player", target.getName()).send(player);
 					player.playSound(player.getLocation(), Sound.ENTITY_EXPERIENCE_ORB_PICKUP, 1, 1);
 					open();
@@ -179,14 +185,14 @@ public class EditablePartyView extends EditableInventory {
 			}
 
 			if (item.getFunction().equals("member") && event.getAction() == InventoryAction.PICKUP_HALF) {
-				if (!playerData.getParty().getOwner().equals(playerData))
+				if (!party.getOwner().equals(playerData))
 					return;
 
 				OfflinePlayer target = Bukkit.getOfflinePlayer(UUID.fromString(NBTItem.get(event.getCurrentItem()).getString("uuid")));
 				if (target.equals(player))
 					return;
 
-				playerData.getParty().removeMember(PlayerData.get(target));
+				party.removeMember(PlayerData.get(target));
 				MMOCore.plugin.configManager.getSimpleMessage("kick-from-party", "player", target.getName()).send(player);
 				player.playSound(player.getLocation(), Sound.ENTITY_EXPERIENCE_ORB_PICKUP, 1, 1);
 			}

src/main/java/net/Indyuce/mmocore/listener/PartyListener.java

@@ -1,5 +1,13 @@
 package net.Indyuce.mmocore.listener;
 
+import io.lumine.mythic.lib.api.event.PlayerAttackEvent;
+import net.Indyuce.mmocore.MMOCore;
+import net.Indyuce.mmocore.api.event.social.PartyChatEvent;
+import net.Indyuce.mmocore.api.player.PlayerData;
+import net.Indyuce.mmocore.manager.ConfigManager.SimpleMessage;
+import net.Indyuce.mmocore.party.AbstractParty;
+import net.Indyuce.mmocore.party.provided.MMOCorePartyModule;
+import net.Indyuce.mmocore.party.provided.Party;
 import org.bukkit.Bukkit;
 import org.bukkit.entity.LivingEntity;
 import org.bukkit.entity.Player;
@@ -8,13 +16,12 @@ import org.bukkit.event.EventPriority;
 import org.bukkit.event.Listener;
 import org.bukkit.event.player.AsyncPlayerChatEvent;
 
-import net.Indyuce.mmocore.MMOCore;
-import net.Indyuce.mmocore.api.event.social.PartyChatEvent;
-import net.Indyuce.mmocore.api.player.PlayerData;
-import net.Indyuce.mmocore.manager.ConfigManager.SimpleMessage;
-import io.lumine.mythic.lib.api.event.PlayerAttackEvent;
-
 public class PartyListener implements Listener {
+	private final MMOCorePartyModule module;
+
+	public PartyListener(MMOCorePartyModule module) {
+		this.module = module;
+	}
 
 	@EventHandler(priority = EventPriority.LOW)
 	public void a(AsyncPlayerChatEvent event) {
@@ -22,24 +29,20 @@ public class PartyListener implements Listener {
 			return;
 
 		PlayerData data = PlayerData.get(event.getPlayer());
-		if (!data.hasParty())
+		Party party = module.getParty(data);
+		if (party == null)
 			return;
 
 		event.setCancelled(true);
 
-		/*
+		// Running it in a delayed task is recommended
-		 * running it in a delayed task is recommended
-		 */
 		Bukkit.getScheduler().scheduleSyncDelayedTask(MMOCore.plugin, () -> {
 			SimpleMessage format = MMOCore.plugin.configManager.getSimpleMessage("party-chat", "player", data.getPlayer().getName(), "message",
 					event.getMessage().substring(MMOCore.plugin.configManager.partyChatPrefix.length()));
-			PartyChatEvent called = new PartyChatEvent(data, format.message());
+			PartyChatEvent called = new PartyChatEvent(party, data, format.message());
 			Bukkit.getPluginManager().callEvent(called);
 			if (!called.isCancelled())
-				data.getParty().getMembers().forEach(member -> {
+				party.getOnlineMembers().forEach(member -> format.send(member.getPlayer()));
-					if (member.isOnline())
-						format.send(member.getPlayer());
-				});
 		});
 	}
 
@@ -54,7 +57,8 @@ public class PartyListener implements Listener {
 		LivingEntity entity = event.getEntity();
 		if (entity instanceof Player && !entity.hasMetadata("NPC")) {
 			PlayerData targetData = PlayerData.get((Player) event.getEntity());
-			if (targetData.hasParty() && targetData.getParty().hasMember(PlayerData.get(event.getData().getUniqueId())))
+			AbstractParty party = targetData.getParty();
+			if (party != null && party.hasMember(event.getData().getPlayer()))
 				event.setCancelled(true);
 		}
 	}

src/main/java/net/Indyuce/mmocore/manager/social/PartyManager.java

@@ -2,61 +2,34 @@ package net.Indyuce.mmocore.manager.social;
 
 import io.lumine.mythic.lib.api.stat.modifier.StatModifier;
 import net.Indyuce.mmocore.MMOCore;
-import net.Indyuce.mmocore.api.player.PlayerData;
-import net.Indyuce.mmocore.api.player.social.Party;
 import net.Indyuce.mmocore.api.player.stats.StatType;
 import net.Indyuce.mmocore.manager.MMOCoreManager;
-import org.apache.commons.lang.Validate;
 import org.bukkit.configuration.ConfigurationSection;
 
-import java.util.HashMap;
 import java.util.HashSet;
-import java.util.Map;
 import java.util.Set;
 import java.util.logging.Level;
 
 public class PartyManager implements MMOCoreManager {
-	private final Set<Party> parties = new HashSet<>();
+    private final Set<StatModifier> buffs = new HashSet<>();
-	private final Set<StatModifier> buffs = new HashSet<>();
 
-	public void registerParty(Party party) {
+    public Set<StatModifier> getBonuses() {
-		parties.add(party);
+        return buffs;
-	}
+    }
 
-	public Party newRegisteredParty(PlayerData owner) {
+    @Override
-		Party party = new Party(owner);
+    public void initialize(boolean clearBefore) {
-		registerParty(party);
+        if (clearBefore)
-		return party;
+            buffs.clear();
-	}
 
-	public boolean isRegistered(Party party) {
+        ConfigurationSection config = MMOCore.plugin.getConfig().getConfigurationSection("party.buff");
-		return parties.contains(party);
+        if (config != null)
-	}
+            for (String key : config.getKeys(false))
-
+                try {
-	public void unregisterParty(Party party) {
+                    StatType stat = StatType.valueOf(key.toUpperCase().replace("-", "_").replace(" ", "_"));
-		// IMPORTANT: clears all party members before unregistering the party
+                    buffs.add(new StatModifier("mmocoreParty", stat.name(), config.getString(key)));
-		party.forEachMember(party::removeMember);
+                } catch (IllegalArgumentException exception) {
-		Validate.isTrue(party.getMembers().isEmpty(), "Tried unregistering a non-empty party");
+                    MMOCore.log(Level.WARNING, "Could not load party buff '" + key + "': " + exception.getMessage());
-		parties.remove(party);
+                }
-	}
+    }
-
-	public Set<StatModifier> getBonuses() {
-		return buffs;
-	}
-
-	@Override
-	public void initialize(boolean clearBefore) {
-		if (clearBefore)
-			buffs.clear();
-
-		ConfigurationSection config = MMOCore.plugin.getConfig().getConfigurationSection("party.buff");
-		if (config != null)
-			for (String key : config.getKeys(false))
-				try {
-					StatType stat = StatType.valueOf(key.toUpperCase().replace("-", "_").replace(" ", "_"));
-					buffs.add(new StatModifier("mmocoreParty", stat.name(), config.getString(key)));
-				} catch (IllegalArgumentException exception) {
-					MMOCore.log(Level.WARNING, "Could not load party buff '" + key + "': " + exception.getMessage());
-				}
-	}
 }

src/main/java/net/Indyuce/mmocore/party/AbstractParty.java

@@ -0,0 +1,24 @@
+package net.Indyuce.mmocore.party;
+
+import net.Indyuce.mmocore.api.player.PlayerData;
+import org.bukkit.OfflinePlayer;
+
+import java.util.List;
+
+public interface AbstractParty {
+
+    /**
+     * @return If given player is in that party
+     */
+    boolean hasMember(OfflinePlayer player);
+
+    /**
+     * @return List of online members
+     */
+    List<PlayerData> getOnlineMembers();
+
+    /**
+     * @return Number of online/offline players in the party
+     */
+    int countMembers();
+}

src/main/java/net/Indyuce/mmocore/party/PartyModule.java

@@ -0,0 +1,10 @@
+package net.Indyuce.mmocore.party;
+
+import net.Indyuce.mmocore.api.player.PlayerData;
+import org.jetbrains.annotations.Nullable;
+
+public interface PartyModule<T extends AbstractParty> {
+
+    @Nullable
+    public T getParty(PlayerData playerData);
+}

src/main/java/net/Indyuce/mmocore/party/PartyModuleType.java

@@ -0,0 +1,29 @@
+package net.Indyuce.mmocore.party;
+
+import net.Indyuce.mmocore.party.dungeon.DungeonsPartyModule;
+import net.Indyuce.mmocore.party.provided.MMOCorePartyModule;
+import org.bukkit.Bukkit;
+
+import javax.inject.Provider;
+
+public enum PartyModuleType {
+    DUNGEONSXL("DungeonsXL", () -> new DungeonsPartyModule()),
+    MMOCORE("MMOCore", () -> new MMOCorePartyModule()),
+    ;
+
+    private final String pluginName;
+    private final Provider<PartyModule<?>> provider;
+
+    PartyModuleType(String pluginName, Provider<PartyModule<?>> provider) {
+        this.pluginName = pluginName;
+        this.provider = provider;
+    }
+
+    public boolean isValid() {
+        return Bukkit.getPluginManager().getPlugin(pluginName) != null;
+    }
+
+    public PartyModule<?> provideModule() {
+        return provider.get();
+    }
+}

src/main/java/net/Indyuce/mmocore/party/dungeon/DungeonsParty.java

@@ -0,0 +1,41 @@
+package net.Indyuce.mmocore.party.dungeon;
+
+import de.erethon.dungeonsxl.api.player.PlayerGroup;
+import net.Indyuce.mmocore.api.player.PlayerData;
+import net.Indyuce.mmocore.party.AbstractParty;
+import org.bukkit.OfflinePlayer;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.UUID;
+
+public class DungeonsParty implements AbstractParty {
+    private final PlayerGroup group;
+
+    public DungeonsParty(PlayerGroup group) {
+        this.group = group;
+    }
+
+    @Override
+    public boolean hasMember(OfflinePlayer player) {
+        return group.getMembers().contains(player.getUniqueId());
+    }
+
+    @Override
+    public List<PlayerData> getOnlineMembers() {
+        List<PlayerData> list = new ArrayList<>();
+
+        for (UUID playerUid : group.getMembers().getUniqueIds()) {
+            PlayerData found = PlayerData.get(playerUid);
+            if (found.isOnline())
+                list.add(found);
+        }
+
+        return list;
+    }
+
+    @Override
+    public int countMembers() {
+        return group.getMembers().getUniqueIds().size();
+    }
+}

src/main/java/net/Indyuce/mmocore/party/dungeon/DungeonsPartyModule.java

@@ -0,0 +1,15 @@
+package net.Indyuce.mmocore.party.dungeon;
+
+import de.erethon.dungeonsxl.DungeonsXL;
+import de.erethon.dungeonsxl.api.player.PlayerGroup;
+import net.Indyuce.mmocore.api.player.PlayerData;
+import net.Indyuce.mmocore.party.PartyModule;
+
+public class DungeonsPartyModule implements PartyModule<DungeonsParty> {
+
+    @Override
+    public DungeonsParty getParty(PlayerData playerData) {
+        PlayerGroup group = DungeonsXL.getInstance().getPlayerGroup(playerData.getPlayer());
+        return group == null ? null : new DungeonsParty(group);
+    }
+}

src/main/java/net/Indyuce/mmocore/party/provided/MMOCorePartyModule.java

@@ -0,0 +1,52 @@
+package net.Indyuce.mmocore.party.provided;
+
+import net.Indyuce.mmocore.MMOCore;
+import net.Indyuce.mmocore.api.player.PlayerData;
+import net.Indyuce.mmocore.listener.PartyListener;
+import net.Indyuce.mmocore.party.PartyModule;
+import org.apache.commons.lang.Validate;
+import org.bukkit.Bukkit;
+
+import java.util.*;
+
+public class MMOCorePartyModule implements PartyModule {
+    private final Set<Party> parties = new HashSet<>();
+    private final Map<UUID, Party> playerParties = new HashMap<>();
+
+    public MMOCorePartyModule() {
+        Bukkit.getPluginManager().registerEvents(new PartyListener(this), MMOCore.plugin);
+    }
+
+    public void registerParty(Party party) {
+        parties.add(party);
+    }
+
+    /**
+     * Creates and registers a new party with given owner
+     */
+    public Party newRegisteredParty(PlayerData owner) {
+        Party party = new Party(this, owner);
+        registerParty(party);
+        return party;
+    }
+
+    public boolean isRegistered(Party party) {
+        return parties.contains(party);
+    }
+
+    public void unregisterParty(Party party) {
+        // IMPORTANT: clears all party members before unregistering the party
+        party.forEachMember(party::removeMember);
+        Validate.isTrue(party.getMembers().isEmpty(), "Tried unregistering a non-empty party");
+        parties.remove(party);
+    }
+
+    @Override
+    public Party getParty(PlayerData playerData) {
+        return this.playerParties.get(playerData.getUniqueId());
+    }
+
+    public void setParty(PlayerData playerData, Party party) {
+        this.playerParties.put(playerData.getUniqueId(), party);
+    }
+}

src/main/java/net/Indyuce/mmocore/party/provided/Party.java

@@ -1,30 +1,39 @@
-package net.Indyuce.mmocore.api.player.social;
+package net.Indyuce.mmocore.party.provided;
 
 import net.Indyuce.mmocore.MMOCore;
 import net.Indyuce.mmocore.api.ConfigMessage;
 import net.Indyuce.mmocore.api.player.PlayerData;
+import net.Indyuce.mmocore.api.player.social.Request;
 import net.Indyuce.mmocore.gui.api.PluginInventory;
 import net.Indyuce.mmocore.gui.social.party.EditablePartyView.PartyViewInventory;
 import net.Indyuce.mmocore.manager.InventoryManager;
+import net.Indyuce.mmocore.party.AbstractParty;
+import org.bukkit.OfflinePlayer;
 import org.bukkit.entity.Player;
 
 import java.util.*;
 import java.util.function.Consumer;
 
-public class Party {
+public class Party implements AbstractParty {
     private final List<PlayerData> members = new ArrayList<>();
     private final Map<UUID, Long> invites = new HashMap<>();
 
-    // used to check if two parties are the same
+    /**
+     * Used for {@link #equals(Object)}
+     */
     private final UUID id = UUID.randomUUID();
 
-    /*
+    /**
-     * owner changes when the old owner leaves party
+     * Owner has to change when previous owner leaves party
      */
     private PlayerData owner;
 
-    public Party(PlayerData owner) {
+    private final MMOCorePartyModule module;
+
+    public Party(MMOCorePartyModule module, PlayerData owner) {
         this.owner = owner;
+        this.module = module;
+
         addMember(owner);
     }
 
@@ -40,6 +49,7 @@ public class Party {
         return members;
     }
 
+    @Override
     public List<PlayerData> getOnlineMembers() {
         List<PlayerData> online = new ArrayList<>();
 
@@ -50,6 +60,11 @@ public class Party {
         return online;
     }
 
+    @Override
+    public int countMembers() {
+        return members.size();
+    }
+
     public PlayerData getMember(int index) {
         return members.get(index);
     }
@@ -62,11 +77,8 @@ public class Party {
         invites.remove(player.getUniqueId());
     }
 
-    public boolean hasMember(PlayerData playerData) {
+    @Override
-        return hasMember(playerData.getUniqueId());
+    public boolean hasMember(OfflinePlayer player) {
-    }
-
-    public boolean hasMember(Player player) {
         return hasMember(player.getUniqueId());
     }
 
@@ -87,14 +99,15 @@ public class Party {
             InventoryManager.PARTY_CREATION.newInventory(data).open();
 
         members.remove(data);
-        data.setParty(null);
+
+        module.setParty(data, null);
         clearStatBonuses(data);
         members.forEach(this::applyStatBonuses);
         updateOpenInventories();
 
         // Disband the party if no member left
         if (members.size() < 1) {
-            MMOCore.plugin.partyManager.unregisterParty(this);
+            module.unregisterParty(this);
             return;
         }
 
@@ -107,10 +120,11 @@ public class Party {
     }
 
     public void addMember(PlayerData data) {
-        if (data.hasParty())
+        Party party = (Party) data.getParty();
-            data.getParty().removeMember(data);
+        if (party != null)
+            party.removeMember(data);
 
-        data.setParty(this);
+        module.setParty(data, this);
         members.add(data);
         members.forEach(this::applyStatBonuses);
 
@@ -164,7 +178,15 @@ public class Party {
     }
 
     @Override
-    public boolean equals(Object obj) {
+    public boolean equals(Object o) {
-        return obj instanceof Party && ((Party) obj).getUniqueId().equals(getUniqueId());
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        Party party = (Party) o;
+        return id.equals(party.id);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(id);
     }
 }

src/main/java/net/Indyuce/mmocore/party/provided/PartyInvite.java

@@ -1,7 +1,8 @@
-package net.Indyuce.mmocore.api.player.social;
+package net.Indyuce.mmocore.party.provided;
 
 import net.Indyuce.mmocore.MMOCore;
 import net.Indyuce.mmocore.api.player.PlayerData;
+import net.Indyuce.mmocore.api.player.social.Request;
 import net.Indyuce.mmocore.manager.InventoryManager;
 
 public class PartyInvite extends Request {

src/main/resources/config.yml

@@ -58,6 +58,14 @@ custom-mine-conditions:
 # broken when custom mining conditions are met
 protect-custom-mine: false
 
+# Edit the plugin handling parties here.
+# Supported values (just copy and paste):
+# - mmocore
+# - dungeonsxl
+# - parties
+# - parties_and_friends
+party-plugin: mmocore
+
 # Whether blocks generated with a "cobblegenerator" should
 # provide the player with experience points or not
 should-cobblestone-generators-give-exp: false
@@ -65,43 +73,8 @@ should-cobblestone-generators-give-exp: false
 # Edit how to cast skills here. This part of the config is
 # pretty tricky so it's best to read the wiki page before editing anything
 skill-casting:
-  mode: KEY_COMBOS
+  mode: SKILL_BAR
-  initializer-key: SWAP_HANDS
+  open: SWAP_HANDS
-  sound:
-    begin-combo:
-      sound: BLOCK_END_PORTAL_FRAME_FILL
-      volume: 1
-      pitch: 2
-    combo-key:
-      sound: BLOCK_LEVER_CLICK
-      volume: 1
-      pitch: 2
-    fail-combo:
-      sound: BLOCK_FIRE_EXTINGUISH
-      volume: 1
-      pitch: 2
-  action-bar:
-    separator: ' - '
-    no-key: '***'
-    key-name:
-      LEFT_CLICK: 'LEFT'
-      RIGHT_CLICK: 'RGHT'
-      DROP: 'DROP'
-      SWAP_HANDS: 'SWAP'
-      CROUCH: 'SHFT'
-  combos:
-    '1':
-      - LEFT_CLICK
-      - LEFT_CLICK
-    '2':
-      - LEFT_CLICK
-      - RIGHT_CLICK
-    '3':
-      - RIGHT_CLICK
-      - LEFT_CLICK
-    '4':
-      - RIGHT_CLICK
-      - RIGHT_CLICK
 
 loot-chests: