Usable clan mastery tree.

L2J_Mobius_5.0_Salvation/dist/game/data/ClanMasteryData.xml

@@ -29,7 +29,7 @@
 	<!-- War Specialty level 3 -->
 	<clan mastery="14" skill1Id="19114" skill1Level="1" skill2Id="19535" skill2Level="3" skill3Id="19536" skill3Level="1" clanLevel="10" clanReputation="30000" previousMastery="13" />
 	<!-- War Specialty level 4 -->
-	<clan mastery="15" skill1Id="15094" skill1Level="1" skill2Id="19537" skill2Level="1" clanLevel="12" clanReputation="50000" previousMastery="14" />
+	<clan mastery="15" skill1Id="15094" skill1Level="1" skill2Id="19537" skill2Level="1" clanLevel="12" clanReputation="50000" previousMastery="4" />
 	<!-- War Specialty level 5 -->
 	<clan mastery="16" skill1Id="19537" skill1Level="2" clanLevel="13" clanReputation="50000" previousMastery="15" />
 </list>

L2J_Mobius_5.0_Salvation/java/org/l2jmobius/gameserver/data/xml/impl/ClanMasteryData.java

@@ -17,8 +17,9 @@
 package org.l2jmobius.gameserver.data.xml.impl;
 
 import java.io.File;
-import java.util.ArrayList;
+import java.util.Collection;
-import java.util.List;
+import java.util.HashMap;
+import java.util.Map;
 import java.util.logging.Logger;
 
 import org.w3c.dom.Document;
@@ -35,7 +36,7 @@ public class ClanMasteryData implements IXmlReader
 {
 	private static Logger LOGGER = Logger.getLogger(ClanMasteryData.class.getName());
 	
-	private final List<ClanMasteryHolder> _clanMasteryData = new ArrayList<>();
+	private final Map<Integer, ClanMasteryHolder> _clanMasteryData = new HashMap<>();
 	
 	protected ClanMasteryData()
 	{
@@ -107,13 +108,18 @@ public class ClanMasteryData implements IXmlReader
 			final int previousMastery = set.getInt("previousMastery", 0);
 			final int previousMasteryAlt = set.getInt("previousMasteryAlt", 0);
 			
-			_clanMasteryData.add(new ClanMasteryHolder(id, skill1, skill2, skill3, skill4, clanLevel, clanReputation, previousMastery, previousMasteryAlt));
+			_clanMasteryData.put(id, new ClanMasteryHolder(id, skill1, skill2, skill3, skill4, clanLevel, clanReputation, previousMastery, previousMasteryAlt));
 		}));
 	}
 	
-	public List<ClanMasteryHolder> getMasteries()
+	public Collection<ClanMasteryHolder> getMasteries()
 	{
-		return _clanMasteryData;
+		return _clanMasteryData.values();
+	}
+	
+	public ClanMasteryHolder getClanMastery(int id)
+	{
+		return _clanMasteryData.get(id);
 	}
 	
 	public static ClanMasteryData getInstance()

L2J_Mobius_5.0_Salvation/java/org/l2jmobius/gameserver/model/clan/Clan.java

@@ -41,6 +41,7 @@ import org.l2jmobius.gameserver.data.sql.impl.CharNameTable;
 import org.l2jmobius.gameserver.data.sql.impl.ClanTable;
 import org.l2jmobius.gameserver.data.sql.impl.CrestTable;
 import org.l2jmobius.gameserver.data.xml.impl.ClanLevelData;
+import org.l2jmobius.gameserver.data.xml.impl.ClanMasteryData;
 import org.l2jmobius.gameserver.data.xml.impl.SkillData;
 import org.l2jmobius.gameserver.data.xml.impl.SkillTreesData;
 import org.l2jmobius.gameserver.enums.ClanRewardType;
@@ -57,6 +58,7 @@ import org.l2jmobius.gameserver.model.events.impl.creature.player.OnPlayerClanJo
 import org.l2jmobius.gameserver.model.events.impl.creature.player.OnPlayerClanLeaderChange;
 import org.l2jmobius.gameserver.model.events.impl.creature.player.OnPlayerClanLeft;
 import org.l2jmobius.gameserver.model.events.impl.creature.player.OnPlayerClanLvlUp;
+import org.l2jmobius.gameserver.model.holders.ClanMasteryHolder;
 import org.l2jmobius.gameserver.model.interfaces.IIdentifiable;
 import org.l2jmobius.gameserver.model.interfaces.INamable;
 import org.l2jmobius.gameserver.model.itemcontainer.ClanWarehouse;
@@ -1471,6 +1473,33 @@ public class Clan implements IIdentifiable, INamable
 		}
 	}
 	
+	public void removeSkill(Skill skill)
+	{
+		_skills.remove(skill.getId());
+		
+		try (Connection con = DatabaseFactory.getConnection();
+			PreparedStatement ps = con.prepareStatement("DELETE FROM clan_skills WHERE clan_id=? AND skill_id=? AND skill_level=?"))
+		{
+			ps.setInt(1, _clanId);
+			ps.setInt(2, skill.getId());
+			ps.setInt(3, skill.getLevel());
+			ps.execute();
+		}
+		catch (Exception e)
+		{
+			LOGGER.log(Level.SEVERE, "Error removing clan masteries: " + e.getMessage(), e);
+		}
+		
+		for (ClanMember member : _members.values())
+		{
+			if ((member != null) && (member.getPlayerInstance() != null) && member.isOnline())
+			{
+				member.getPlayerInstance().removeSkill(skill, false);
+				member.getPlayerInstance().sendSkillList();
+			}
+		}
+	}
+	
 	public void broadcastToOnlineAllyMembers(IClientOutgoingPacket packet)
 	{
 		for (Clan clan : ClanTable.getInstance().getClanAllies(getAllyId()))
@@ -2754,6 +2783,44 @@ public class Clan implements IIdentifiable, INamable
 		broadcastToOnlineMembers(ExPledgeBonusMarkReset.STATIC_PACKET);
 	}
 	
+	public void addMastery(int id)
+	{
+		getVariables().set(ClanVariables.CLAN_MASTERY + id, true);
+	}
+	
+	public boolean hasMastery(int id)
+	{
+		return getVariables().getBoolean(ClanVariables.CLAN_MASTERY + id, false);
+	}
+	
+	public void removeAllMasteries()
+	{
+		for (ClanMasteryHolder mastery : ClanMasteryData.getInstance().getMasteries())
+		{
+			getVariables().remove(ClanVariables.CLAN_MASTERY + mastery.getId());
+			for (Skill skill : mastery.getSkills())
+			{
+				removeSkill(skill);
+			}
+		}
+	}
+	
+	public void setDevelopmentPoints(int count)
+	{
+		getVariables().set(ClanVariables.CLAN_DEVELOPMENT_POINTS, count);
+		getVariables().storeMe();
+	}
+	
+	public int getUsedDevelopmentPoints()
+	{
+		return getVariables().getInt(ClanVariables.CLAN_DEVELOPMENT_POINTS, 0);
+	}
+	
+	public int getTotalDevelopmentPoints()
+	{
+		return Math.max(0, _level - 4);
+	}
+	
 	public ClanVariables getVariables()
 	{
 		if (_vars == null)

L2J_Mobius_5.0_Salvation/java/org/l2jmobius/gameserver/model/variables/ClanVariables.java

@@ -38,6 +38,10 @@ public class ClanVariables extends AbstractVariables
 	private static final String DELETE_QUERY = "DELETE FROM clan_variables WHERE clanId = ?";
 	private static final String INSERT_QUERY = "INSERT INTO clan_variables (clanId, var, val) VALUES (?, ?, ?)";
 	
+	// Public variables.
+	public static final String CLAN_DEVELOPMENT_POINTS = "CLAN_DEVELOPMENT_POINTS";
+	public static final String CLAN_MASTERY = "CLAN_MASTERY_";
+	
 	private final int _objectId;
 	
 	public ClanVariables(int objectId)

L2J_Mobius_5.0_Salvation/java/org/l2jmobius/gameserver/network/ExIncomingPackets.java

@@ -87,6 +87,7 @@ import org.l2jmobius.gameserver.network.clientpackets.pledgeV2.RequestExPledgeIt
 import org.l2jmobius.gameserver.network.clientpackets.pledgeV2.RequestExPledgeLevelUp;
 import org.l2jmobius.gameserver.network.clientpackets.pledgeV2.RequestExPledgeMasteryInfo;
 import org.l2jmobius.gameserver.network.clientpackets.pledgeV2.RequestExPledgeMasteryReset;
+import org.l2jmobius.gameserver.network.clientpackets.pledgeV2.RequestExPledgeMasterySet;
 import org.l2jmobius.gameserver.network.clientpackets.pledgeV2.RequestExPledgeSkillInfo;
 import org.l2jmobius.gameserver.network.clientpackets.pledgebonus.RequestPledgeBonusOpen;
 import org.l2jmobius.gameserver.network.clientpackets.pledgebonus.RequestPledgeBonusReward;
@@ -428,7 +429,7 @@ public enum ExIncomingPackets implements IIncomingPackets<GameClient>
 	EX_PLEDGE_MISSION_INFO(0x142, null, ConnectionState.IN_GAME),
 	EX_PLEDGE_MISSION_REWARD(0x143, null, ConnectionState.IN_GAME),
 	EX_PLEDGE_MASTERY_INFO(0x144, RequestExPledgeMasteryInfo::new, ConnectionState.IN_GAME),
-	EX_PLEDGE_MASTERY_SET(0x145, null, ConnectionState.IN_GAME),
+	EX_PLEDGE_MASTERY_SET(0x145, RequestExPledgeMasterySet::new, ConnectionState.IN_GAME),
 	EX_PLEDGE_MASTERY_RESET(0x146, RequestExPledgeMasteryReset::new, ConnectionState.IN_GAME),
 	EX_PLEDGE_SKILL_INFO(0x147, RequestExPledgeSkillInfo::new, ConnectionState.IN_GAME),
 	EX_PLEDGE_SKILL_ACTIVATE(0x148, null, ConnectionState.IN_GAME),

L2J_Mobius_5.0_Salvation/java/org/l2jmobius/gameserver/network/clientpackets/pledgeV2/RequestExPledgeMasteryReset.java

@@ -21,12 +21,15 @@ import org.l2jmobius.gameserver.model.actor.instance.PlayerInstance;
 import org.l2jmobius.gameserver.model.clan.Clan;
 import org.l2jmobius.gameserver.network.GameClient;
 import org.l2jmobius.gameserver.network.clientpackets.IClientIncomingPacket;
+import org.l2jmobius.gameserver.network.serverpackets.pledgeV2.ExPledgeMasteryInfo;
 
 /**
  * @author Mobius
  */
 public class RequestExPledgeMasteryReset implements IClientIncomingPacket
 {
+	private final static int REPUTATION_COST = 10000;
+	
 	@Override
 	public boolean read(GameClient client, PacketReader packet)
 	{
@@ -42,10 +45,25 @@ public class RequestExPledgeMasteryReset implements IClientIncomingPacket
 			return;
 		}
 		final Clan clan = player.getClan();
-		if ((clan == null) || (clan.getLeaderId() != player.getId()))
+		if (clan == null)
 		{
 			return;
 		}
+		if (player.getObjectId() != clan.getLeaderId())
+		{
+			player.sendMessage("You do not have enough privilages to take this action.");
+			return;
+		}
 		
+		if (clan.getReputationScore() < REPUTATION_COST)
+		{
+			player.sendMessage("You need " + REPUTATION_COST + " clan reputation.");
+			return;
+		}
+		
+		clan.takeReputationScore(REPUTATION_COST, true);
+		clan.removeAllMasteries();
+		clan.setDevelopmentPoints(0);
+		player.sendPacket(new ExPledgeMasteryInfo(player));
 	}
 }

L2J_Mobius_5.0_Salvation/java/org/l2jmobius/gameserver/network/clientpackets/pledgeV2/RequestExPledgeMasterySet.java

@@ -0,0 +1,111 @@
+/*
+ * This file is part of the L2J Mobius project.
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.l2jmobius.gameserver.network.clientpackets.pledgeV2;
+
+import org.l2jmobius.commons.network.PacketReader;
+import org.l2jmobius.gameserver.data.xml.impl.ClanMasteryData;
+import org.l2jmobius.gameserver.model.actor.instance.PlayerInstance;
+import org.l2jmobius.gameserver.model.clan.Clan;
+import org.l2jmobius.gameserver.model.holders.ClanMasteryHolder;
+import org.l2jmobius.gameserver.model.skills.Skill;
+import org.l2jmobius.gameserver.network.GameClient;
+import org.l2jmobius.gameserver.network.clientpackets.IClientIncomingPacket;
+import org.l2jmobius.gameserver.network.serverpackets.pledgeV2.ExPledgeMasteryInfo;
+
+/**
+ * @author Mobius
+ */
+public class RequestExPledgeMasterySet implements IClientIncomingPacket
+{
+	private int _masteryId;
+	
+	@Override
+	public boolean read(GameClient client, PacketReader packet)
+	{
+		_masteryId = packet.readD();
+		return true;
+	}
+	
+	@Override
+	public void run(GameClient client)
+	{
+		final PlayerInstance player = client.getPlayer();
+		if (player == null)
+		{
+			return;
+		}
+		final Clan clan = player.getClan();
+		if (clan == null)
+		{
+			return;
+		}
+		if (player.getObjectId() != clan.getLeaderId())
+		{
+			player.sendMessage("You do not have enough privilages to take this action.");
+			return;
+		}
+		
+		// Check if already enabled.
+		if (clan.hasMastery(_masteryId))
+		{
+			player.sendMessage("This mastery is already available.");
+			return;
+		}
+		
+		// Check if it can be learned.
+		if (clan.getTotalDevelopmentPoints() < (clan.getUsedDevelopmentPoints() + 1))
+		{
+			player.sendMessage("Your clan develpment points are not sufficient.");
+			return;
+		}
+		final ClanMasteryHolder mastery = ClanMasteryData.getInstance().getClanMastery(_masteryId);
+		if (clan.getLevel() < mastery.getClanLevel())
+		{
+			player.sendMessage("Your clan level is lower than the requirement.");
+			return;
+		}
+		if (clan.getReputationScore() < mastery.getClanReputation())
+		{
+			player.sendMessage("Your clan reputation is lower than the requirement.");
+			return;
+		}
+		final int previous = mastery.getPreviousMastery();
+		final int previousAlt = mastery.getPreviousMasteryAlt();
+		if (previousAlt > 0)
+		{
+			if (!clan.hasMastery(previous) && !clan.hasMastery(previousAlt))
+			{
+				player.sendMessage("You need to learn a previous mastery.");
+				return;
+			}
+		}
+		else if ((previous > 0) && !clan.hasMastery(previous))
+		{
+			player.sendMessage("You need to learn the previous mastery.");
+			return;
+		}
+		
+		// Learn.
+		clan.addMastery(mastery.getId());
+		clan.setDevelopmentPoints(clan.getUsedDevelopmentPoints() + 1);
+		for (Skill skill : mastery.getSkills())
+		{
+			clan.addNewSkill(skill);
+		}
+		player.sendPacket(new ExPledgeMasteryInfo(player));
+	}
+}

L2J_Mobius_5.0_Salvation/java/org/l2jmobius/gameserver/network/serverpackets/pledgeV2/ExPledgeMasteryInfo.java

@@ -19,6 +19,7 @@ package org.l2jmobius.gameserver.network.serverpackets.pledgeV2;
 import org.l2jmobius.commons.network.PacketWriter;
 import org.l2jmobius.gameserver.data.xml.impl.ClanMasteryData;
 import org.l2jmobius.gameserver.model.actor.instance.PlayerInstance;
+import org.l2jmobius.gameserver.model.clan.Clan;
 import org.l2jmobius.gameserver.model.holders.ClanMasteryHolder;
 import org.l2jmobius.gameserver.network.OutgoingPackets;
 import org.l2jmobius.gameserver.network.serverpackets.AbstractItemPacket;
@@ -38,24 +39,46 @@ public class ExPledgeMasteryInfo extends AbstractItemPacket
 	@Override
 	public boolean write(PacketWriter packet)
 	{
-		if (_player.getClan() == null)
+		final Clan clan = _player.getClan();
+		if (clan == null)
 		{
 			return false;
 		}
 		
 		OutgoingPackets.EX_PLEDGE_MASTERY_INFO.writeId(packet);
 		
-		packet.writeD(0); // Consumed development points
+		packet.writeD(clan.getUsedDevelopmentPoints()); // Consumed development points
-		packet.writeD(Math.max(0, _player.getClan().getLevel() - 4)); // Total development points
+		packet.writeD(clan.getTotalDevelopmentPoints()); // Total development points
-		
+		packet.writeD(16); // Mastery count
-		packet.writeD(16); // Masteries count
 		for (ClanMasteryHolder mastery : ClanMasteryData.getInstance().getMasteries())
 		{
 			if (mastery.getId() < 17)
 			{
-				packet.writeD(mastery.getId()); // Mastery
+				final int id = mastery.getId();
-				packet.writeD(0); // Purchased?
+				packet.writeD(id); // Mastery
-				packet.writeC(/* _player.getClan().getLevel() >= mastery.getClanLevel() ? 1 : */ 0); // Availability - TODO: Previous level requirement.
+				packet.writeD(0x00); // ?
+				
+				boolean available = true;
+				if (clan.getLevel() < mastery.getClanLevel())
+				{
+					available = false;
+				}
+				if (clan.getReputationScore() < mastery.getClanReputation())
+				{
+					available = false;
+				}
+				final int previous = mastery.getPreviousMastery();
+				final int previousAlt = mastery.getPreviousMasteryAlt();
+				if (previousAlt > 0)
+				{
+					available = clan.hasMastery(previous) || clan.hasMastery(previousAlt);
+				}
+				else if (previous > 0)
+				{
+					available = clan.hasMastery(previous);
+				}
+				
+				packet.writeC(clan.hasMastery(id) ? 0x02 : available ? 0x01 : 0x00); // Availability.
 			}
 		}
 		

L2J_Mobius_5.5_EtinasFate/dist/game/data/ClanMasteryData.xml

@@ -29,7 +29,7 @@
 	<!-- War Specialty level 3 -->
 	<clan mastery="14" skill1Id="19114" skill1Level="1" skill2Id="19535" skill2Level="3" skill3Id="19536" skill3Level="1" clanLevel="10" clanReputation="30000" previousMastery="13" />
 	<!-- War Specialty level 4 -->
-	<clan mastery="15" skill1Id="15094" skill1Level="1" skill2Id="19537" skill2Level="1" clanLevel="12" clanReputation="50000" previousMastery="14" />
+	<clan mastery="15" skill1Id="15094" skill1Level="1" skill2Id="19537" skill2Level="1" clanLevel="12" clanReputation="50000" previousMastery="4" />
 	<!-- War Specialty level 5 -->
 	<clan mastery="16" skill1Id="19537" skill1Level="2" clanLevel="13" clanReputation="50000" previousMastery="15" />
 </list>

L2J_Mobius_5.5_EtinasFate/java/org/l2jmobius/gameserver/data/xml/impl/ClanMasteryData.java

@@ -17,8 +17,9 @@
 package org.l2jmobius.gameserver.data.xml.impl;
 
 import java.io.File;
-import java.util.ArrayList;
+import java.util.Collection;
-import java.util.List;
+import java.util.HashMap;
+import java.util.Map;
 import java.util.logging.Logger;
 
 import org.w3c.dom.Document;
@@ -35,7 +36,7 @@ public class ClanMasteryData implements IXmlReader
 {
 	private static Logger LOGGER = Logger.getLogger(ClanMasteryData.class.getName());
 	
-	private final List<ClanMasteryHolder> _clanMasteryData = new ArrayList<>();
+	private final Map<Integer, ClanMasteryHolder> _clanMasteryData = new HashMap<>();
 	
 	protected ClanMasteryData()
 	{
@@ -107,13 +108,18 @@ public class ClanMasteryData implements IXmlReader
 			final int previousMastery = set.getInt("previousMastery", 0);
 			final int previousMasteryAlt = set.getInt("previousMasteryAlt", 0);
 			
-			_clanMasteryData.add(new ClanMasteryHolder(id, skill1, skill2, skill3, skill4, clanLevel, clanReputation, previousMastery, previousMasteryAlt));
+			_clanMasteryData.put(id, new ClanMasteryHolder(id, skill1, skill2, skill3, skill4, clanLevel, clanReputation, previousMastery, previousMasteryAlt));
 		}));
 	}
 	
-	public List<ClanMasteryHolder> getMasteries()
+	public Collection<ClanMasteryHolder> getMasteries()
 	{
-		return _clanMasteryData;
+		return _clanMasteryData.values();
+	}
+	
+	public ClanMasteryHolder getClanMastery(int id)
+	{
+		return _clanMasteryData.get(id);
 	}
 	
 	public static ClanMasteryData getInstance()

L2J_Mobius_5.5_EtinasFate/java/org/l2jmobius/gameserver/model/clan/Clan.java

@@ -41,6 +41,7 @@ import org.l2jmobius.gameserver.data.sql.impl.CharNameTable;
 import org.l2jmobius.gameserver.data.sql.impl.ClanTable;
 import org.l2jmobius.gameserver.data.sql.impl.CrestTable;
 import org.l2jmobius.gameserver.data.xml.impl.ClanLevelData;
+import org.l2jmobius.gameserver.data.xml.impl.ClanMasteryData;
 import org.l2jmobius.gameserver.data.xml.impl.SkillData;
 import org.l2jmobius.gameserver.data.xml.impl.SkillTreesData;
 import org.l2jmobius.gameserver.enums.ClanRewardType;
@@ -57,6 +58,7 @@ import org.l2jmobius.gameserver.model.events.impl.creature.player.OnPlayerClanJo
 import org.l2jmobius.gameserver.model.events.impl.creature.player.OnPlayerClanLeaderChange;
 import org.l2jmobius.gameserver.model.events.impl.creature.player.OnPlayerClanLeft;
 import org.l2jmobius.gameserver.model.events.impl.creature.player.OnPlayerClanLvlUp;
+import org.l2jmobius.gameserver.model.holders.ClanMasteryHolder;
 import org.l2jmobius.gameserver.model.interfaces.IIdentifiable;
 import org.l2jmobius.gameserver.model.interfaces.INamable;
 import org.l2jmobius.gameserver.model.itemcontainer.ClanWarehouse;
@@ -1471,6 +1473,33 @@ public class Clan implements IIdentifiable, INamable
 		}
 	}
 	
+	public void removeSkill(Skill skill)
+	{
+		_skills.remove(skill.getId());
+		
+		try (Connection con = DatabaseFactory.getConnection();
+			PreparedStatement ps = con.prepareStatement("DELETE FROM clan_skills WHERE clan_id=? AND skill_id=? AND skill_level=?"))
+		{
+			ps.setInt(1, _clanId);
+			ps.setInt(2, skill.getId());
+			ps.setInt(3, skill.getLevel());
+			ps.execute();
+		}
+		catch (Exception e)
+		{
+			LOGGER.log(Level.SEVERE, "Error removing clan masteries: " + e.getMessage(), e);
+		}
+		
+		for (ClanMember member : _members.values())
+		{
+			if ((member != null) && (member.getPlayerInstance() != null) && member.isOnline())
+			{
+				member.getPlayerInstance().removeSkill(skill, false);
+				member.getPlayerInstance().sendSkillList();
+			}
+		}
+	}
+	
 	public void broadcastToOnlineAllyMembers(IClientOutgoingPacket packet)
 	{
 		for (Clan clan : ClanTable.getInstance().getClanAllies(getAllyId()))
@@ -2754,6 +2783,44 @@ public class Clan implements IIdentifiable, INamable
 		broadcastToOnlineMembers(ExPledgeBonusMarkReset.STATIC_PACKET);
 	}
 	
+	public void addMastery(int id)
+	{
+		getVariables().set(ClanVariables.CLAN_MASTERY + id, true);
+	}
+	
+	public boolean hasMastery(int id)
+	{
+		return getVariables().getBoolean(ClanVariables.CLAN_MASTERY + id, false);
+	}
+	
+	public void removeAllMasteries()
+	{
+		for (ClanMasteryHolder mastery : ClanMasteryData.getInstance().getMasteries())
+		{
+			getVariables().remove(ClanVariables.CLAN_MASTERY + mastery.getId());
+			for (Skill skill : mastery.getSkills())
+			{
+				removeSkill(skill);
+			}
+		}
+	}
+	
+	public void setDevelopmentPoints(int count)
+	{
+		getVariables().set(ClanVariables.CLAN_DEVELOPMENT_POINTS, count);
+		getVariables().storeMe();
+	}
+	
+	public int getUsedDevelopmentPoints()
+	{
+		return getVariables().getInt(ClanVariables.CLAN_DEVELOPMENT_POINTS, 0);
+	}
+	
+	public int getTotalDevelopmentPoints()
+	{
+		return Math.max(0, _level - 4);
+	}
+	
 	public ClanVariables getVariables()
 	{
 		if (_vars == null)

L2J_Mobius_5.5_EtinasFate/java/org/l2jmobius/gameserver/model/variables/ClanVariables.java

@@ -38,6 +38,10 @@ public class ClanVariables extends AbstractVariables
 	private static final String DELETE_QUERY = "DELETE FROM clan_variables WHERE clanId = ?";
 	private static final String INSERT_QUERY = "INSERT INTO clan_variables (clanId, var, val) VALUES (?, ?, ?)";
 	
+	// Public variables.
+	public static final String CLAN_DEVELOPMENT_POINTS = "CLAN_DEVELOPMENT_POINTS";
+	public static final String CLAN_MASTERY = "CLAN_MASTERY_";
+	
 	private final int _objectId;
 	
 	public ClanVariables(int objectId)

L2J_Mobius_5.5_EtinasFate/java/org/l2jmobius/gameserver/network/ExIncomingPackets.java

@@ -87,6 +87,7 @@ import org.l2jmobius.gameserver.network.clientpackets.pledgeV2.RequestExPledgeIt
 import org.l2jmobius.gameserver.network.clientpackets.pledgeV2.RequestExPledgeLevelUp;
 import org.l2jmobius.gameserver.network.clientpackets.pledgeV2.RequestExPledgeMasteryInfo;
 import org.l2jmobius.gameserver.network.clientpackets.pledgeV2.RequestExPledgeMasteryReset;
+import org.l2jmobius.gameserver.network.clientpackets.pledgeV2.RequestExPledgeMasterySet;
 import org.l2jmobius.gameserver.network.clientpackets.pledgeV2.RequestExPledgeSkillInfo;
 import org.l2jmobius.gameserver.network.clientpackets.pledgebonus.RequestPledgeBonusOpen;
 import org.l2jmobius.gameserver.network.clientpackets.pledgebonus.RequestPledgeBonusReward;
@@ -428,7 +429,7 @@ public enum ExIncomingPackets implements IIncomingPackets<GameClient>
 	EX_PLEDGE_MISSION_INFO(0x142, null, ConnectionState.IN_GAME),
 	EX_PLEDGE_MISSION_REWARD(0x143, null, ConnectionState.IN_GAME),
 	EX_PLEDGE_MASTERY_INFO(0x144, RequestExPledgeMasteryInfo::new, ConnectionState.IN_GAME),
-	EX_PLEDGE_MASTERY_SET(0x145, null, ConnectionState.IN_GAME),
+	EX_PLEDGE_MASTERY_SET(0x145, RequestExPledgeMasterySet::new, ConnectionState.IN_GAME),
 	EX_PLEDGE_MASTERY_RESET(0x146, RequestExPledgeMasteryReset::new, ConnectionState.IN_GAME),
 	EX_PLEDGE_SKILL_INFO(0x147, RequestExPledgeSkillInfo::new, ConnectionState.IN_GAME),
 	EX_PLEDGE_SKILL_ACTIVATE(0x148, null, ConnectionState.IN_GAME),

L2J_Mobius_5.5_EtinasFate/java/org/l2jmobius/gameserver/network/clientpackets/pledgeV2/RequestExPledgeMasteryReset.java

@@ -21,12 +21,15 @@ import org.l2jmobius.gameserver.model.actor.instance.PlayerInstance;
 import org.l2jmobius.gameserver.model.clan.Clan;
 import org.l2jmobius.gameserver.network.GameClient;
 import org.l2jmobius.gameserver.network.clientpackets.IClientIncomingPacket;
+import org.l2jmobius.gameserver.network.serverpackets.pledgeV2.ExPledgeMasteryInfo;
 
 /**
  * @author Mobius
  */
 public class RequestExPledgeMasteryReset implements IClientIncomingPacket
 {
+	private final static int REPUTATION_COST = 10000;
+	
 	@Override
 	public boolean read(GameClient client, PacketReader packet)
 	{
@@ -42,10 +45,25 @@ public class RequestExPledgeMasteryReset implements IClientIncomingPacket
 			return;
 		}
 		final Clan clan = player.getClan();
-		if ((clan == null) || (clan.getLeaderId() != player.getId()))
+		if (clan == null)
 		{
 			return;
 		}
+		if (player.getObjectId() != clan.getLeaderId())
+		{
+			player.sendMessage("You do not have enough privilages to take this action.");
+			return;
+		}
 		
+		if (clan.getReputationScore() < REPUTATION_COST)
+		{
+			player.sendMessage("You need " + REPUTATION_COST + " clan reputation.");
+			return;
+		}
+		
+		clan.takeReputationScore(REPUTATION_COST, true);
+		clan.removeAllMasteries();
+		clan.setDevelopmentPoints(0);
+		player.sendPacket(new ExPledgeMasteryInfo(player));
 	}
 }

L2J_Mobius_5.5_EtinasFate/java/org/l2jmobius/gameserver/network/clientpackets/pledgeV2/RequestExPledgeMasterySet.java

@@ -0,0 +1,111 @@
+/*
+ * This file is part of the L2J Mobius project.
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.l2jmobius.gameserver.network.clientpackets.pledgeV2;
+
+import org.l2jmobius.commons.network.PacketReader;
+import org.l2jmobius.gameserver.data.xml.impl.ClanMasteryData;
+import org.l2jmobius.gameserver.model.actor.instance.PlayerInstance;
+import org.l2jmobius.gameserver.model.clan.Clan;
+import org.l2jmobius.gameserver.model.holders.ClanMasteryHolder;
+import org.l2jmobius.gameserver.model.skills.Skill;
+import org.l2jmobius.gameserver.network.GameClient;
+import org.l2jmobius.gameserver.network.clientpackets.IClientIncomingPacket;
+import org.l2jmobius.gameserver.network.serverpackets.pledgeV2.ExPledgeMasteryInfo;
+
+/**
+ * @author Mobius
+ */
+public class RequestExPledgeMasterySet implements IClientIncomingPacket
+{
+	private int _masteryId;
+	
+	@Override
+	public boolean read(GameClient client, PacketReader packet)
+	{
+		_masteryId = packet.readD();
+		return true;
+	}
+	
+	@Override
+	public void run(GameClient client)
+	{
+		final PlayerInstance player = client.getPlayer();
+		if (player == null)
+		{
+			return;
+		}
+		final Clan clan = player.getClan();
+		if (clan == null)
+		{
+			return;
+		}
+		if (player.getObjectId() != clan.getLeaderId())
+		{
+			player.sendMessage("You do not have enough privilages to take this action.");
+			return;
+		}
+		
+		// Check if already enabled.
+		if (clan.hasMastery(_masteryId))
+		{
+			player.sendMessage("This mastery is already available.");
+			return;
+		}
+		
+		// Check if it can be learned.
+		if (clan.getTotalDevelopmentPoints() < (clan.getUsedDevelopmentPoints() + 1))
+		{
+			player.sendMessage("Your clan develpment points are not sufficient.");
+			return;
+		}
+		final ClanMasteryHolder mastery = ClanMasteryData.getInstance().getClanMastery(_masteryId);
+		if (clan.getLevel() < mastery.getClanLevel())
+		{
+			player.sendMessage("Your clan level is lower than the requirement.");
+			return;
+		}
+		if (clan.getReputationScore() < mastery.getClanReputation())
+		{
+			player.sendMessage("Your clan reputation is lower than the requirement.");
+			return;
+		}
+		final int previous = mastery.getPreviousMastery();
+		final int previousAlt = mastery.getPreviousMasteryAlt();
+		if (previousAlt > 0)
+		{
+			if (!clan.hasMastery(previous) && !clan.hasMastery(previousAlt))
+			{
+				player.sendMessage("You need to learn a previous mastery.");
+				return;
+			}
+		}
+		else if ((previous > 0) && !clan.hasMastery(previous))
+		{
+			player.sendMessage("You need to learn the previous mastery.");
+			return;
+		}
+		
+		// Learn.
+		clan.addMastery(mastery.getId());
+		clan.setDevelopmentPoints(clan.getUsedDevelopmentPoints() + 1);
+		for (Skill skill : mastery.getSkills())
+		{
+			clan.addNewSkill(skill);
+		}
+		player.sendPacket(new ExPledgeMasteryInfo(player));
+	}
+}

L2J_Mobius_5.5_EtinasFate/java/org/l2jmobius/gameserver/network/serverpackets/pledgeV2/ExPledgeMasteryInfo.java

@@ -19,6 +19,7 @@ package org.l2jmobius.gameserver.network.serverpackets.pledgeV2;
 import org.l2jmobius.commons.network.PacketWriter;
 import org.l2jmobius.gameserver.data.xml.impl.ClanMasteryData;
 import org.l2jmobius.gameserver.model.actor.instance.PlayerInstance;
+import org.l2jmobius.gameserver.model.clan.Clan;
 import org.l2jmobius.gameserver.model.holders.ClanMasteryHolder;
 import org.l2jmobius.gameserver.network.OutgoingPackets;
 import org.l2jmobius.gameserver.network.serverpackets.AbstractItemPacket;
@@ -38,24 +39,46 @@ public class ExPledgeMasteryInfo extends AbstractItemPacket
 	@Override
 	public boolean write(PacketWriter packet)
 	{
-		if (_player.getClan() == null)
+		final Clan clan = _player.getClan();
+		if (clan == null)
 		{
 			return false;
 		}
 		
 		OutgoingPackets.EX_PLEDGE_MASTERY_INFO.writeId(packet);
 		
-		packet.writeD(0); // Consumed development points
+		packet.writeD(clan.getUsedDevelopmentPoints()); // Consumed development points
-		packet.writeD(Math.max(0, _player.getClan().getLevel() - 4)); // Total development points
+		packet.writeD(clan.getTotalDevelopmentPoints()); // Total development points
-		
+		packet.writeD(16); // Mastery count
-		packet.writeD(16); // Masteries count
 		for (ClanMasteryHolder mastery : ClanMasteryData.getInstance().getMasteries())
 		{
 			if (mastery.getId() < 17)
 			{
-				packet.writeD(mastery.getId()); // Mastery
+				final int id = mastery.getId();
-				packet.writeD(0); // Purchased?
+				packet.writeD(id); // Mastery
-				packet.writeC(/* _player.getClan().getLevel() >= mastery.getClanLevel() ? 1 : */ 0); // Availability - TODO: Previous level requirement.
+				packet.writeD(0x00); // ?
+				
+				boolean available = true;
+				if (clan.getLevel() < mastery.getClanLevel())
+				{
+					available = false;
+				}
+				if (clan.getReputationScore() < mastery.getClanReputation())
+				{
+					available = false;
+				}
+				final int previous = mastery.getPreviousMastery();
+				final int previousAlt = mastery.getPreviousMasteryAlt();
+				if (previousAlt > 0)
+				{
+					available = clan.hasMastery(previous) || clan.hasMastery(previousAlt);
+				}
+				else if (previous > 0)
+				{
+					available = clan.hasMastery(previous);
+				}
+				
+				packet.writeC(clan.hasMastery(id) ? 0x02 : available ? 0x01 : 0x00); // Availability.
 			}
 		}
 		

L2J_Mobius_6.0_Fafurion/dist/game/data/ClanMasteryData.xml

@@ -29,7 +29,7 @@
 	<!-- War Specialty level 3 -->
 	<clan mastery="14" skill1Id="19114" skill1Level="1" skill2Id="19535" skill2Level="3" skill3Id="19536" skill3Level="1" clanLevel="10" clanReputation="30000" previousMastery="13" />
 	<!-- War Specialty level 4 -->
-	<clan mastery="15" skill1Id="15094" skill1Level="1" skill2Id="19537" skill2Level="1" clanLevel="12" clanReputation="50000" previousMastery="14" />
+	<clan mastery="15" skill1Id="15094" skill1Level="1" skill2Id="19537" skill2Level="1" clanLevel="12" clanReputation="50000" previousMastery="4" />
 	<!-- War Specialty level 5 -->
 	<clan mastery="16" skill1Id="19537" skill1Level="2" clanLevel="13" clanReputation="50000" previousMastery="15" />
 </list>

L2J_Mobius_6.0_Fafurion/java/org/l2jmobius/gameserver/data/xml/impl/ClanMasteryData.java

@@ -17,8 +17,9 @@
 package org.l2jmobius.gameserver.data.xml.impl;
 
 import java.io.File;
-import java.util.ArrayList;
+import java.util.Collection;
-import java.util.List;
+import java.util.HashMap;
+import java.util.Map;
 import java.util.logging.Logger;
 
 import org.w3c.dom.Document;
@@ -35,7 +36,7 @@ public class ClanMasteryData implements IXmlReader
 {
 	private static Logger LOGGER = Logger.getLogger(ClanMasteryData.class.getName());
 	
-	private final List<ClanMasteryHolder> _clanMasteryData = new ArrayList<>();
+	private final Map<Integer, ClanMasteryHolder> _clanMasteryData = new HashMap<>();
 	
 	protected ClanMasteryData()
 	{
@@ -107,13 +108,18 @@ public class ClanMasteryData implements IXmlReader
 			final int previousMastery = set.getInt("previousMastery", 0);
 			final int previousMasteryAlt = set.getInt("previousMasteryAlt", 0);
 			
-			_clanMasteryData.add(new ClanMasteryHolder(id, skill1, skill2, skill3, skill4, clanLevel, clanReputation, previousMastery, previousMasteryAlt));
+			_clanMasteryData.put(id, new ClanMasteryHolder(id, skill1, skill2, skill3, skill4, clanLevel, clanReputation, previousMastery, previousMasteryAlt));
 		}));
 	}
 	
-	public List<ClanMasteryHolder> getMasteries()
+	public Collection<ClanMasteryHolder> getMasteries()
 	{
-		return _clanMasteryData;
+		return _clanMasteryData.values();
+	}
+	
+	public ClanMasteryHolder getClanMastery(int id)
+	{
+		return _clanMasteryData.get(id);
 	}
 	
 	public static ClanMasteryData getInstance()

L2J_Mobius_6.0_Fafurion/java/org/l2jmobius/gameserver/model/clan/Clan.java

@@ -41,6 +41,7 @@ import org.l2jmobius.gameserver.data.sql.impl.CharNameTable;
 import org.l2jmobius.gameserver.data.sql.impl.ClanTable;
 import org.l2jmobius.gameserver.data.sql.impl.CrestTable;
 import org.l2jmobius.gameserver.data.xml.impl.ClanLevelData;
+import org.l2jmobius.gameserver.data.xml.impl.ClanMasteryData;
 import org.l2jmobius.gameserver.data.xml.impl.SkillData;
 import org.l2jmobius.gameserver.data.xml.impl.SkillTreesData;
 import org.l2jmobius.gameserver.enums.ClanRewardType;
@@ -57,6 +58,7 @@ import org.l2jmobius.gameserver.model.events.impl.creature.player.OnPlayerClanJo
 import org.l2jmobius.gameserver.model.events.impl.creature.player.OnPlayerClanLeaderChange;
 import org.l2jmobius.gameserver.model.events.impl.creature.player.OnPlayerClanLeft;
 import org.l2jmobius.gameserver.model.events.impl.creature.player.OnPlayerClanLvlUp;
+import org.l2jmobius.gameserver.model.holders.ClanMasteryHolder;
 import org.l2jmobius.gameserver.model.interfaces.IIdentifiable;
 import org.l2jmobius.gameserver.model.interfaces.INamable;
 import org.l2jmobius.gameserver.model.itemcontainer.ClanWarehouse;
@@ -1471,6 +1473,33 @@ public class Clan implements IIdentifiable, INamable
 		}
 	}
 	
+	public void removeSkill(Skill skill)
+	{
+		_skills.remove(skill.getId());
+		
+		try (Connection con = DatabaseFactory.getConnection();
+			PreparedStatement ps = con.prepareStatement("DELETE FROM clan_skills WHERE clan_id=? AND skill_id=? AND skill_level=?"))
+		{
+			ps.setInt(1, _clanId);
+			ps.setInt(2, skill.getId());
+			ps.setInt(3, skill.getLevel());
+			ps.execute();
+		}
+		catch (Exception e)
+		{
+			LOGGER.log(Level.SEVERE, "Error removing clan masteries: " + e.getMessage(), e);
+		}
+		
+		for (ClanMember member : _members.values())
+		{
+			if ((member != null) && (member.getPlayerInstance() != null) && member.isOnline())
+			{
+				member.getPlayerInstance().removeSkill(skill, false);
+				member.getPlayerInstance().sendSkillList();
+			}
+		}
+	}
+	
 	public void broadcastToOnlineAllyMembers(IClientOutgoingPacket packet)
 	{
 		for (Clan clan : ClanTable.getInstance().getClanAllies(getAllyId()))
@@ -2754,6 +2783,44 @@ public class Clan implements IIdentifiable, INamable
 		broadcastToOnlineMembers(ExPledgeBonusMarkReset.STATIC_PACKET);
 	}
 	
+	public void addMastery(int id)
+	{
+		getVariables().set(ClanVariables.CLAN_MASTERY + id, true);
+	}
+	
+	public boolean hasMastery(int id)
+	{
+		return getVariables().getBoolean(ClanVariables.CLAN_MASTERY + id, false);
+	}
+	
+	public void removeAllMasteries()
+	{
+		for (ClanMasteryHolder mastery : ClanMasteryData.getInstance().getMasteries())
+		{
+			getVariables().remove(ClanVariables.CLAN_MASTERY + mastery.getId());
+			for (Skill skill : mastery.getSkills())
+			{
+				removeSkill(skill);
+			}
+		}
+	}
+	
+	public void setDevelopmentPoints(int count)
+	{
+		getVariables().set(ClanVariables.CLAN_DEVELOPMENT_POINTS, count);
+		getVariables().storeMe();
+	}
+	
+	public int getUsedDevelopmentPoints()
+	{
+		return getVariables().getInt(ClanVariables.CLAN_DEVELOPMENT_POINTS, 0);
+	}
+	
+	public int getTotalDevelopmentPoints()
+	{
+		return Math.max(0, _level - 4);
+	}
+	
 	public ClanVariables getVariables()
 	{
 		if (_vars == null)

L2J_Mobius_6.0_Fafurion/java/org/l2jmobius/gameserver/model/variables/ClanVariables.java

@@ -38,6 +38,10 @@ public class ClanVariables extends AbstractVariables
 	private static final String DELETE_QUERY = "DELETE FROM clan_variables WHERE clanId = ?";
 	private static final String INSERT_QUERY = "INSERT INTO clan_variables (clanId, var, val) VALUES (?, ?, ?)";
 	
+	// Public variables.
+	public static final String CLAN_DEVELOPMENT_POINTS = "CLAN_DEVELOPMENT_POINTS";
+	public static final String CLAN_MASTERY = "CLAN_MASTERY_";
+	
 	private final int _objectId;
 	
 	public ClanVariables(int objectId)

L2J_Mobius_6.0_Fafurion/java/org/l2jmobius/gameserver/network/ExIncomingPackets.java

@@ -87,6 +87,7 @@ import org.l2jmobius.gameserver.network.clientpackets.pledgeV2.RequestExPledgeIt
 import org.l2jmobius.gameserver.network.clientpackets.pledgeV2.RequestExPledgeLevelUp;
 import org.l2jmobius.gameserver.network.clientpackets.pledgeV2.RequestExPledgeMasteryInfo;
 import org.l2jmobius.gameserver.network.clientpackets.pledgeV2.RequestExPledgeMasteryReset;
+import org.l2jmobius.gameserver.network.clientpackets.pledgeV2.RequestExPledgeMasterySet;
 import org.l2jmobius.gameserver.network.clientpackets.pledgeV2.RequestExPledgeSkillInfo;
 import org.l2jmobius.gameserver.network.clientpackets.pledgebonus.RequestPledgeBonusOpen;
 import org.l2jmobius.gameserver.network.clientpackets.pledgebonus.RequestPledgeBonusReward;
@@ -428,7 +429,7 @@ public enum ExIncomingPackets implements IIncomingPackets<GameClient>
 	EX_PLEDGE_MISSION_INFO(0x142, null, ConnectionState.IN_GAME),
 	EX_PLEDGE_MISSION_REWARD(0x143, null, ConnectionState.IN_GAME),
 	EX_PLEDGE_MASTERY_INFO(0x144, RequestExPledgeMasteryInfo::new, ConnectionState.IN_GAME),
-	EX_PLEDGE_MASTERY_SET(0x145, null, ConnectionState.IN_GAME),
+	EX_PLEDGE_MASTERY_SET(0x145, RequestExPledgeMasterySet::new, ConnectionState.IN_GAME),
 	EX_PLEDGE_MASTERY_RESET(0x146, RequestExPledgeMasteryReset::new, ConnectionState.IN_GAME),
 	EX_PLEDGE_SKILL_INFO(0x147, RequestExPledgeSkillInfo::new, ConnectionState.IN_GAME),
 	EX_PLEDGE_SKILL_ACTIVATE(0x148, null, ConnectionState.IN_GAME),

L2J_Mobius_6.0_Fafurion/java/org/l2jmobius/gameserver/network/clientpackets/pledgeV2/RequestExPledgeMasteryReset.java

@@ -21,12 +21,15 @@ import org.l2jmobius.gameserver.model.actor.instance.PlayerInstance;
 import org.l2jmobius.gameserver.model.clan.Clan;
 import org.l2jmobius.gameserver.network.GameClient;
 import org.l2jmobius.gameserver.network.clientpackets.IClientIncomingPacket;
+import org.l2jmobius.gameserver.network.serverpackets.pledgeV2.ExPledgeMasteryInfo;
 
 /**
  * @author Mobius
  */
 public class RequestExPledgeMasteryReset implements IClientIncomingPacket
 {
+	private final static int REPUTATION_COST = 10000;
+	
 	@Override
 	public boolean read(GameClient client, PacketReader packet)
 	{
@@ -42,10 +45,25 @@ public class RequestExPledgeMasteryReset implements IClientIncomingPacket
 			return;
 		}
 		final Clan clan = player.getClan();
-		if ((clan == null) || (clan.getLeaderId() != player.getId()))
+		if (clan == null)
 		{
 			return;
 		}
+		if (player.getObjectId() != clan.getLeaderId())
+		{
+			player.sendMessage("You do not have enough privilages to take this action.");
+			return;
+		}
 		
+		if (clan.getReputationScore() < REPUTATION_COST)
+		{
+			player.sendMessage("You need " + REPUTATION_COST + " clan reputation.");
+			return;
+		}
+		
+		clan.takeReputationScore(REPUTATION_COST, true);
+		clan.removeAllMasteries();
+		clan.setDevelopmentPoints(0);
+		player.sendPacket(new ExPledgeMasteryInfo(player));
 	}
 }

L2J_Mobius_6.0_Fafurion/java/org/l2jmobius/gameserver/network/clientpackets/pledgeV2/RequestExPledgeMasterySet.java

@@ -0,0 +1,111 @@
+/*
+ * This file is part of the L2J Mobius project.
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.l2jmobius.gameserver.network.clientpackets.pledgeV2;
+
+import org.l2jmobius.commons.network.PacketReader;
+import org.l2jmobius.gameserver.data.xml.impl.ClanMasteryData;
+import org.l2jmobius.gameserver.model.actor.instance.PlayerInstance;
+import org.l2jmobius.gameserver.model.clan.Clan;
+import org.l2jmobius.gameserver.model.holders.ClanMasteryHolder;
+import org.l2jmobius.gameserver.model.skills.Skill;
+import org.l2jmobius.gameserver.network.GameClient;
+import org.l2jmobius.gameserver.network.clientpackets.IClientIncomingPacket;
+import org.l2jmobius.gameserver.network.serverpackets.pledgeV2.ExPledgeMasteryInfo;
+
+/**
+ * @author Mobius
+ */
+public class RequestExPledgeMasterySet implements IClientIncomingPacket
+{
+	private int _masteryId;
+	
+	@Override
+	public boolean read(GameClient client, PacketReader packet)
+	{
+		_masteryId = packet.readD();
+		return true;
+	}
+	
+	@Override
+	public void run(GameClient client)
+	{
+		final PlayerInstance player = client.getPlayer();
+		if (player == null)
+		{
+			return;
+		}
+		final Clan clan = player.getClan();
+		if (clan == null)
+		{
+			return;
+		}
+		if (player.getObjectId() != clan.getLeaderId())
+		{
+			player.sendMessage("You do not have enough privilages to take this action.");
+			return;
+		}
+		
+		// Check if already enabled.
+		if (clan.hasMastery(_masteryId))
+		{
+			player.sendMessage("This mastery is already available.");
+			return;
+		}
+		
+		// Check if it can be learned.
+		if (clan.getTotalDevelopmentPoints() < (clan.getUsedDevelopmentPoints() + 1))
+		{
+			player.sendMessage("Your clan develpment points are not sufficient.");
+			return;
+		}
+		final ClanMasteryHolder mastery = ClanMasteryData.getInstance().getClanMastery(_masteryId);
+		if (clan.getLevel() < mastery.getClanLevel())
+		{
+			player.sendMessage("Your clan level is lower than the requirement.");
+			return;
+		}
+		if (clan.getReputationScore() < mastery.getClanReputation())
+		{
+			player.sendMessage("Your clan reputation is lower than the requirement.");
+			return;
+		}
+		final int previous = mastery.getPreviousMastery();
+		final int previousAlt = mastery.getPreviousMasteryAlt();
+		if (previousAlt > 0)
+		{
+			if (!clan.hasMastery(previous) && !clan.hasMastery(previousAlt))
+			{
+				player.sendMessage("You need to learn a previous mastery.");
+				return;
+			}
+		}
+		else if ((previous > 0) && !clan.hasMastery(previous))
+		{
+			player.sendMessage("You need to learn the previous mastery.");
+			return;
+		}
+		
+		// Learn.
+		clan.addMastery(mastery.getId());
+		clan.setDevelopmentPoints(clan.getUsedDevelopmentPoints() + 1);
+		for (Skill skill : mastery.getSkills())
+		{
+			clan.addNewSkill(skill);
+		}
+		player.sendPacket(new ExPledgeMasteryInfo(player));
+	}
+}

L2J_Mobius_6.0_Fafurion/java/org/l2jmobius/gameserver/network/serverpackets/pledgeV2/ExPledgeMasteryInfo.java

@@ -19,6 +19,7 @@ package org.l2jmobius.gameserver.network.serverpackets.pledgeV2;
 import org.l2jmobius.commons.network.PacketWriter;
 import org.l2jmobius.gameserver.data.xml.impl.ClanMasteryData;
 import org.l2jmobius.gameserver.model.actor.instance.PlayerInstance;
+import org.l2jmobius.gameserver.model.clan.Clan;
 import org.l2jmobius.gameserver.model.holders.ClanMasteryHolder;
 import org.l2jmobius.gameserver.network.OutgoingPackets;
 import org.l2jmobius.gameserver.network.serverpackets.AbstractItemPacket;
@@ -38,24 +39,46 @@ public class ExPledgeMasteryInfo extends AbstractItemPacket
 	@Override
 	public boolean write(PacketWriter packet)
 	{
-		if (_player.getClan() == null)
+		final Clan clan = _player.getClan();
+		if (clan == null)
 		{
 			return false;
 		}
 		
 		OutgoingPackets.EX_PLEDGE_MASTERY_INFO.writeId(packet);
 		
-		packet.writeD(0); // Consumed development points
+		packet.writeD(clan.getUsedDevelopmentPoints()); // Consumed development points
-		packet.writeD(Math.max(0, _player.getClan().getLevel() - 4)); // Total development points
+		packet.writeD(clan.getTotalDevelopmentPoints()); // Total development points
-		
+		packet.writeD(16); // Mastery count
-		packet.writeD(16); // Masteries count
 		for (ClanMasteryHolder mastery : ClanMasteryData.getInstance().getMasteries())
 		{
 			if (mastery.getId() < 17)
 			{
-				packet.writeD(mastery.getId()); // Mastery
+				final int id = mastery.getId();
-				packet.writeD(0); // Purchased?
+				packet.writeD(id); // Mastery
-				packet.writeC(/* _player.getClan().getLevel() >= mastery.getClanLevel() ? 1 : */ 0); // Availability - TODO: Previous level requirement.
+				packet.writeD(0x00); // ?
+				
+				boolean available = true;
+				if (clan.getLevel() < mastery.getClanLevel())
+				{
+					available = false;
+				}
+				if (clan.getReputationScore() < mastery.getClanReputation())
+				{
+					available = false;
+				}
+				final int previous = mastery.getPreviousMastery();
+				final int previousAlt = mastery.getPreviousMasteryAlt();
+				if (previousAlt > 0)
+				{
+					available = clan.hasMastery(previous) || clan.hasMastery(previousAlt);
+				}
+				else if (previous > 0)
+				{
+					available = clan.hasMastery(previous);
+				}
+				
+				packet.writeC(clan.hasMastery(id) ? 0x02 : available ? 0x01 : 0x00); // Availability.
 			}
 		}