Implemented the ExRequestClassChangeVerifying client packet.

L2J_Mobius_7.0_PreludeOfWar/java/org/l2jmobius/gameserver/network/ExIncomingPackets.java

@@ -52,6 +52,7 @@ import org.l2jmobius.gameserver.network.clientpackets.ceremonyofchaos.RequestCan
 import org.l2jmobius.gameserver.network.clientpackets.ceremonyofchaos.RequestCuriousHouseHtml;
 import org.l2jmobius.gameserver.network.clientpackets.ceremonyofchaos.RequestJoinCuriousHouse;
 import org.l2jmobius.gameserver.network.clientpackets.classchange.ExRequestClassChange;
+import org.l2jmobius.gameserver.network.clientpackets.classchange.ExRequestClassChangeVerifying;
 import org.l2jmobius.gameserver.network.clientpackets.commission.RequestCommissionBuyInfo;
 import org.l2jmobius.gameserver.network.clientpackets.commission.RequestCommissionBuyItem;
 import org.l2jmobius.gameserver.network.clientpackets.commission.RequestCommissionCancel;
@@ -483,7 +484,7 @@ public enum ExIncomingPackets implements IIncomingPackets<GameClient>
 	// 228
 	EX_OPEN_HTML(0x164, ExOpenHtml::new, ConnectionState.IN_GAME),
 	EX_REQUEST_CLASS_CHANGE(0x165, ExRequestClassChange::new, ConnectionState.IN_GAME),
-	EX_REQUEST_CLASS_CHANGE_VERIFYING(0x166, null, ConnectionState.IN_GAME),
+	EX_REQUEST_CLASS_CHANGE_VERIFYING(0x166, ExRequestClassChangeVerifying::new, ConnectionState.IN_GAME),
 	EX_REQUEST_TELEPORT(0x167, ExRequestTeleport::new, ConnectionState.IN_GAME),
 	EX_COSTUME_USE_ITEM(0x168, null, ConnectionState.IN_GAME),
 	EX_COSTUME_LIST(0x169, null, ConnectionState.IN_GAME),

L2J_Mobius_7.0_PreludeOfWar/java/org/l2jmobius/gameserver/network/clientpackets/classchange/ExRequestClassChangeVerifying.java

@@ -0,0 +1,116 @@
+/*
+ * 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.classchange;
+
+import org.l2jmobius.Config;
+import org.l2jmobius.commons.network.PacketReader;
+import org.l2jmobius.gameserver.enums.CategoryType;
+import org.l2jmobius.gameserver.model.actor.instance.PlayerInstance;
+import org.l2jmobius.gameserver.model.quest.QuestState;
+import org.l2jmobius.gameserver.network.GameClient;
+import org.l2jmobius.gameserver.network.clientpackets.IClientIncomingPacket;
+import org.l2jmobius.gameserver.network.serverpackets.classchange.ExRequestClassChangeUi;
+
+/**
+ * @author Mobius
+ */
+public class ExRequestClassChangeVerifying implements IClientIncomingPacket
+{
+	private int _classId;
+	
+	@Override
+	public boolean read(GameClient client, PacketReader packet)
+	{
+		_classId = packet.readD();
+		return true;
+	}
+	
+	@Override
+	public void run(GameClient client)
+	{
+		if (Config.DISABLE_TUTORIAL)
+		{
+			return;
+		}
+		
+		final PlayerInstance player = client.getPlayer();
+		if (player == null)
+		{
+			return;
+		}
+		
+		if (_classId != player.getClassId().getId())
+		{
+			return;
+		}
+		
+		if (player.isInCategory(CategoryType.FIRST_CLASS_GROUP))
+		{
+			if (!firstClassCheck(player))
+			{
+				return;
+			}
+		}
+		else if (player.isInCategory(CategoryType.SECOND_CLASS_GROUP))
+		{
+			if (!firstClassCheck(player) || !secondClassCheck(player))
+			{
+				return;
+			}
+		}
+		else if (player.isInCategory(CategoryType.THIRD_CLASS_GROUP))
+		{
+			if (!firstClassCheck(player) || !secondClassCheck(player) || !thirdClassCheck(player))
+			{
+				return;
+			}
+		}
+		else if (player.isInCategory(CategoryType.FOURTH_CLASS_GROUP))
+		{
+			if (!firstClassCheck(player) || !secondClassCheck(player) || !thirdClassCheck(player) || !fourthClassCheck(player))
+			{
+				return;
+			}
+		}
+		
+		player.sendPacket(ExRequestClassChangeUi.STATIC_PACKET);
+	}
+	
+	private boolean firstClassCheck(PlayerInstance player)
+	{
+		final QuestState qs = player.getQuestState("Q11032_CurseOfUndying");
+		return (qs != null) && qs.isCompleted();
+	}
+	
+	private boolean secondClassCheck(PlayerInstance player)
+	{
+		final QuestState qs = player.getQuestState("Q11025_PathOfDestinyProving");
+		return (qs != null) && qs.isCompleted();
+	}
+	
+	private boolean thirdClassCheck(PlayerInstance player)
+	{
+		final QuestState qs = player.getQuestState("Q11026_PathOfDestinyConviction");
+		return (qs != null) && qs.isCompleted();
+	}
+	
+	private boolean fourthClassCheck(PlayerInstance player)
+	{
+		final QuestState qs = player.getQuestState("Q11027_PathOfDestinyOvercome");
+		return (qs != null) && qs.isCompleted();
+	}
+}

L2J_Mobius_8.2_Homunculus/java/org/l2jmobius/gameserver/network/ExIncomingPackets.java

@@ -52,6 +52,7 @@ import org.l2jmobius.gameserver.network.clientpackets.ceremonyofchaos.RequestCan
 import org.l2jmobius.gameserver.network.clientpackets.ceremonyofchaos.RequestCuriousHouseHtml;
 import org.l2jmobius.gameserver.network.clientpackets.ceremonyofchaos.RequestJoinCuriousHouse;
 import org.l2jmobius.gameserver.network.clientpackets.classchange.ExRequestClassChange;
+import org.l2jmobius.gameserver.network.clientpackets.classchange.ExRequestClassChangeVerifying;
 import org.l2jmobius.gameserver.network.clientpackets.commission.RequestCommissionBuyInfo;
 import org.l2jmobius.gameserver.network.clientpackets.commission.RequestCommissionBuyItem;
 import org.l2jmobius.gameserver.network.clientpackets.commission.RequestCommissionCancel;
@@ -499,7 +500,7 @@ public enum ExIncomingPackets implements IIncomingPackets<GameClient>
 	// 228
 	EX_OPEN_HTML(0x164, ExOpenHtml::new, ConnectionState.IN_GAME),
 	EX_REQUEST_CLASS_CHANGE(0x165, ExRequestClassChange::new, ConnectionState.IN_GAME),
-	EX_REQUEST_CLASS_CHANGE_VERIFYING(0x166, null, ConnectionState.IN_GAME),
+	EX_REQUEST_CLASS_CHANGE_VERIFYING(0x166, ExRequestClassChangeVerifying::new, ConnectionState.IN_GAME),
 	EX_REQUEST_TELEPORT(0x167, ExRequestTeleport::new, ConnectionState.IN_GAME),
 	EX_COSTUME_USE_ITEM(0x168, null, ConnectionState.IN_GAME),
 	EX_COSTUME_LIST(0x169, null, ConnectionState.IN_GAME),

L2J_Mobius_8.2_Homunculus/java/org/l2jmobius/gameserver/network/clientpackets/classchange/ExRequestClassChangeVerifying.java

@@ -0,0 +1,116 @@
+/*
+ * 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.classchange;
+
+import org.l2jmobius.Config;
+import org.l2jmobius.commons.network.PacketReader;
+import org.l2jmobius.gameserver.enums.CategoryType;
+import org.l2jmobius.gameserver.model.actor.instance.PlayerInstance;
+import org.l2jmobius.gameserver.model.quest.QuestState;
+import org.l2jmobius.gameserver.network.GameClient;
+import org.l2jmobius.gameserver.network.clientpackets.IClientIncomingPacket;
+import org.l2jmobius.gameserver.network.serverpackets.classchange.ExClassChangeSetAlarm;
+
+/**
+ * @author Mobius
+ */
+public class ExRequestClassChangeVerifying implements IClientIncomingPacket
+{
+	private int _classId;
+	
+	@Override
+	public boolean read(GameClient client, PacketReader packet)
+	{
+		_classId = packet.readD();
+		return true;
+	}
+	
+	@Override
+	public void run(GameClient client)
+	{
+		if (Config.DISABLE_TUTORIAL)
+		{
+			return;
+		}
+		
+		final PlayerInstance player = client.getPlayer();
+		if (player == null)
+		{
+			return;
+		}
+		
+		if (_classId != player.getClassId().getId())
+		{
+			return;
+		}
+		
+		if (player.isInCategory(CategoryType.FIRST_CLASS_GROUP))
+		{
+			if (!firstClassCheck(player))
+			{
+				return;
+			}
+		}
+		else if (player.isInCategory(CategoryType.SECOND_CLASS_GROUP))
+		{
+			if (!firstClassCheck(player) || !secondClassCheck(player))
+			{
+				return;
+			}
+		}
+		else if (player.isInCategory(CategoryType.THIRD_CLASS_GROUP))
+		{
+			if (!firstClassCheck(player) || !secondClassCheck(player) || !thirdClassCheck(player))
+			{
+				return;
+			}
+		}
+		else if (player.isInCategory(CategoryType.FOURTH_CLASS_GROUP))
+		{
+			if (!firstClassCheck(player) || !secondClassCheck(player) || !thirdClassCheck(player) || !fourthClassCheck(player))
+			{
+				return;
+			}
+		}
+		
+		player.sendPacket(ExClassChangeSetAlarm.STATIC_PACKET);
+	}
+	
+	private boolean firstClassCheck(PlayerInstance player)
+	{
+		final QuestState qs = player.getQuestState("Q11024_PathOfDestinyBeginning");
+		return (qs != null) && qs.isCompleted();
+	}
+	
+	private boolean secondClassCheck(PlayerInstance player)
+	{
+		final QuestState qs = player.getQuestState("Q11025_PathOfDestinyProving");
+		return (qs != null) && qs.isCompleted();
+	}
+	
+	private boolean thirdClassCheck(PlayerInstance player)
+	{
+		final QuestState qs = player.getQuestState("Q11026_PathOfDestinyConviction");
+		return (qs != null) && qs.isCompleted();
+	}
+	
+	private boolean fourthClassCheck(PlayerInstance player)
+	{
+		final QuestState qs = player.getQuestState("Q11027_PathOfDestinyOvercome");
+		return (qs != null) && qs.isCompleted();
+	}
+}

L2J_Mobius_9.2_ReturnOfTheQueenAnt/java/org/l2jmobius/gameserver/network/ExIncomingPackets.java

@@ -52,6 +52,7 @@ import org.l2jmobius.gameserver.network.clientpackets.ceremonyofchaos.RequestCan
 import org.l2jmobius.gameserver.network.clientpackets.ceremonyofchaos.RequestCuriousHouseHtml;
 import org.l2jmobius.gameserver.network.clientpackets.ceremonyofchaos.RequestJoinCuriousHouse;
 import org.l2jmobius.gameserver.network.clientpackets.classchange.ExRequestClassChange;
+import org.l2jmobius.gameserver.network.clientpackets.classchange.ExRequestClassChangeVerifying;
 import org.l2jmobius.gameserver.network.clientpackets.collection.RequestCollectionCloseUI;
 import org.l2jmobius.gameserver.network.clientpackets.collection.RequestCollectionFavoriteList;
 import org.l2jmobius.gameserver.network.clientpackets.collection.RequestCollectionReceiveReward;
@@ -508,7 +509,7 @@ public enum ExIncomingPackets implements IIncomingPackets<GameClient>
 	// 228
 	EX_OPEN_HTML(0x164, ExOpenHtml::new, ConnectionState.IN_GAME),
 	EX_REQUEST_CLASS_CHANGE(0x165, ExRequestClassChange::new, ConnectionState.IN_GAME),
-	EX_REQUEST_CLASS_CHANGE_VERIFYING(0x166, null, ConnectionState.IN_GAME),
+	EX_REQUEST_CLASS_CHANGE_VERIFYING(0x166, ExRequestClassChangeVerifying::new, ConnectionState.IN_GAME),
 	EX_REQUEST_TELEPORT(0x167, ExRequestTeleport::new, ConnectionState.IN_GAME),
 	EX_COSTUME_USE_ITEM(0x168, null, ConnectionState.IN_GAME),
 	EX_COSTUME_LIST(0x169, null, ConnectionState.IN_GAME),

L2J_Mobius_9.2_ReturnOfTheQueenAnt/java/org/l2jmobius/gameserver/network/clientpackets/classchange/ExRequestClassChangeVerifying.java

@@ -0,0 +1,116 @@
+/*
+ * 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.classchange;
+
+import org.l2jmobius.Config;
+import org.l2jmobius.commons.network.PacketReader;
+import org.l2jmobius.gameserver.enums.CategoryType;
+import org.l2jmobius.gameserver.model.actor.instance.PlayerInstance;
+import org.l2jmobius.gameserver.model.quest.QuestState;
+import org.l2jmobius.gameserver.network.GameClient;
+import org.l2jmobius.gameserver.network.clientpackets.IClientIncomingPacket;
+import org.l2jmobius.gameserver.network.serverpackets.classchange.ExClassChangeSetAlarm;
+
+/**
+ * @author Mobius
+ */
+public class ExRequestClassChangeVerifying implements IClientIncomingPacket
+{
+	private int _classId;
+	
+	@Override
+	public boolean read(GameClient client, PacketReader packet)
+	{
+		_classId = packet.readD();
+		return true;
+	}
+	
+	@Override
+	public void run(GameClient client)
+	{
+		if (Config.DISABLE_TUTORIAL)
+		{
+			return;
+		}
+		
+		final PlayerInstance player = client.getPlayer();
+		if (player == null)
+		{
+			return;
+		}
+		
+		if (_classId != player.getClassId().getId())
+		{
+			return;
+		}
+		
+		if (player.isInCategory(CategoryType.FIRST_CLASS_GROUP))
+		{
+			if (!firstClassCheck(player))
+			{
+				return;
+			}
+		}
+		else if (player.isInCategory(CategoryType.SECOND_CLASS_GROUP))
+		{
+			if (!firstClassCheck(player) || !secondClassCheck(player))
+			{
+				return;
+			}
+		}
+		else if (player.isInCategory(CategoryType.THIRD_CLASS_GROUP))
+		{
+			if (!firstClassCheck(player) || !secondClassCheck(player) || !thirdClassCheck(player))
+			{
+				return;
+			}
+		}
+		else if (player.isInCategory(CategoryType.FOURTH_CLASS_GROUP))
+		{
+			if (!firstClassCheck(player) || !secondClassCheck(player) || !thirdClassCheck(player) || !fourthClassCheck(player))
+			{
+				return;
+			}
+		}
+		
+		player.sendPacket(ExClassChangeSetAlarm.STATIC_PACKET);
+	}
+	
+	private boolean firstClassCheck(PlayerInstance player)
+	{
+		final QuestState qs = player.getQuestState("Q11024_PathOfDestinyBeginning");
+		return (qs != null) && qs.isCompleted();
+	}
+	
+	private boolean secondClassCheck(PlayerInstance player)
+	{
+		final QuestState qs = player.getQuestState("Q11025_PathOfDestinyProving");
+		return (qs != null) && qs.isCompleted();
+	}
+	
+	private boolean thirdClassCheck(PlayerInstance player)
+	{
+		final QuestState qs = player.getQuestState("Q11026_PathOfDestinyConviction");
+		return (qs != null) && qs.isCompleted();
+	}
+	
+	private boolean fourthClassCheck(PlayerInstance player)
+	{
+		final QuestState qs = player.getQuestState("Q11027_PathOfDestinyOvercome");
+		return (qs != null) && qs.isCompleted();
+	}
+}

L2J_Mobius_Classic_3.0_TheKamael/java/org/l2jmobius/gameserver/network/ExIncomingPackets.java

@@ -43,6 +43,7 @@ import org.l2jmobius.gameserver.network.clientpackets.ceremonyofchaos.RequestCan
 import org.l2jmobius.gameserver.network.clientpackets.ceremonyofchaos.RequestCuriousHouseHtml;
 import org.l2jmobius.gameserver.network.clientpackets.ceremonyofchaos.RequestJoinCuriousHouse;
 import org.l2jmobius.gameserver.network.clientpackets.classchange.ExRequestClassChange;
+import org.l2jmobius.gameserver.network.clientpackets.classchange.ExRequestClassChangeVerifying;
 import org.l2jmobius.gameserver.network.clientpackets.commission.RequestCommissionBuyInfo;
 import org.l2jmobius.gameserver.network.clientpackets.commission.RequestCommissionBuyItem;
 import org.l2jmobius.gameserver.network.clientpackets.commission.RequestCommissionCancel;
@@ -477,7 +478,7 @@ public enum ExIncomingPackets implements IIncomingPackets<GameClient>
 	// 228
 	EX_OPEN_HTML(0x164, ExOpenHtml::new, ConnectionState.IN_GAME),
 	EX_REQUEST_CLASS_CHANGE(0x165, ExRequestClassChange::new, ConnectionState.IN_GAME),
-	EX_REQUEST_CLASS_CHANGE_VERIFYING(0x166, null, ConnectionState.IN_GAME),
+	EX_REQUEST_CLASS_CHANGE_VERIFYING(0x166, ExRequestClassChangeVerifying::new, ConnectionState.IN_GAME),
 	EX_REQUEST_TELEPORT(0x167, ExRequestTeleport::new, ConnectionState.IN_GAME),
 	EX_COSTUME_USE_ITEM(0x168, null, ConnectionState.IN_GAME),
 	EX_COSTUME_LIST(0x169, null, ConnectionState.IN_GAME),

L2J_Mobius_Classic_3.0_TheKamael/java/org/l2jmobius/gameserver/network/clientpackets/classchange/ExRequestClassChangeVerifying.java

@@ -0,0 +1,136 @@
+/*
+ * 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.classchange;
+
+import org.l2jmobius.Config;
+import org.l2jmobius.commons.network.PacketReader;
+import org.l2jmobius.gameserver.enums.CategoryType;
+import org.l2jmobius.gameserver.model.actor.instance.PlayerInstance;
+import org.l2jmobius.gameserver.model.quest.QuestState;
+import org.l2jmobius.gameserver.network.GameClient;
+import org.l2jmobius.gameserver.network.clientpackets.IClientIncomingPacket;
+import org.l2jmobius.gameserver.network.serverpackets.classchange.ExRequestClassChangeUi;
+
+/**
+ * @author Mobius
+ */
+public class ExRequestClassChangeVerifying implements IClientIncomingPacket
+{
+	private int _classId;
+	
+	@Override
+	public boolean read(GameClient client, PacketReader packet)
+	{
+		_classId = packet.readD();
+		return true;
+	}
+	
+	@Override
+	public void run(GameClient client)
+	{
+		if (Config.DISABLE_TUTORIAL)
+		{
+			return;
+		}
+		
+		final PlayerInstance player = client.getPlayer();
+		if (player == null)
+		{
+			return;
+		}
+		
+		if (_classId != player.getClassId().getId())
+		{
+			return;
+		}
+		
+		if (player.isInCategory(CategoryType.FIRST_CLASS_GROUP))
+		{
+			if (!firstClassCheck(player))
+			{
+				return;
+			}
+		}
+		else if (player.isInCategory(CategoryType.SECOND_CLASS_GROUP))
+		{
+			if (!firstClassCheck(player) || !secondClassCheck(player))
+			{
+				return;
+			}
+		}
+		else if (player.isInCategory(CategoryType.THIRD_CLASS_GROUP))
+		{
+			if (!firstClassCheck(player) || !secondClassCheck(player) || !thirdClassCheck(player))
+			{
+				return;
+			}
+		}
+		
+		player.sendPacket(ExRequestClassChangeUi.STATIC_PACKET);
+	}
+	
+	private boolean firstClassCheck(PlayerInstance player)
+	{
+		QuestState qs = null;
+		switch (player.getRace())
+		{
+			case HUMAN:
+			{
+				qs = player.getQuestState("Q10982_SpiderHunt");
+				break;
+			}
+			case ELF:
+			{
+				qs = player.getQuestState("Q10984_CollectSpiderweb");
+				break;
+			}
+			case DARK_ELF:
+			{
+				qs = player.getQuestState("Q10986_SwampMonster");
+				break;
+			}
+			case ORC:
+			{
+				qs = player.getQuestState("Q10988_Conspiracy");
+				break;
+			}
+			case DWARF:
+			{
+				qs = player.getQuestState("Q10990_PoisonExtraction");
+				break;
+			}
+			case KAMAEL:
+			{
+				qs = player.getQuestState("Q10962_NewHorizons");
+				break;
+			}
+		}
+		return (qs != null) && qs.isCompleted();
+	}
+	
+	private boolean secondClassCheck(PlayerInstance player)
+	{
+		// SecondClassChange.java has only level check.
+		return player.getLevel() >= 40;
+	}
+	
+	private boolean thirdClassCheck(PlayerInstance player)
+	{
+		final QuestState qs = player.getQuestState("Q10673_SagaOfLegend");
+		return (qs != null) && qs.isCompleted();
+	}
+}

L2J_Mobius_Essence_4.2_DwellingOfSpirits/java/org/l2jmobius/gameserver/network/ExIncomingPackets.java

@@ -46,6 +46,7 @@ import org.l2jmobius.gameserver.network.clientpackets.ceremonyofchaos.RequestCan
 import org.l2jmobius.gameserver.network.clientpackets.ceremonyofchaos.RequestCuriousHouseHtml;
 import org.l2jmobius.gameserver.network.clientpackets.ceremonyofchaos.RequestJoinCuriousHouse;
 import org.l2jmobius.gameserver.network.clientpackets.classchange.ExRequestClassChange;
+import org.l2jmobius.gameserver.network.clientpackets.classchange.ExRequestClassChangeVerifying;
 import org.l2jmobius.gameserver.network.clientpackets.commission.RequestCommissionBuyInfo;
 import org.l2jmobius.gameserver.network.clientpackets.commission.RequestCommissionBuyItem;
 import org.l2jmobius.gameserver.network.clientpackets.commission.RequestCommissionCancel;
@@ -504,7 +505,7 @@ public enum ExIncomingPackets implements IIncomingPackets<GameClient>
 	// 228
 	EX_OPEN_HTML(0x164, ExOpenHtml::new, ConnectionState.IN_GAME),
 	EX_REQUEST_CLASS_CHANGE(0x165, ExRequestClassChange::new, ConnectionState.IN_GAME),
-	EX_REQUEST_CLASS_CHANGE_VERIFYING(0x166, null, ConnectionState.IN_GAME),
+	EX_REQUEST_CLASS_CHANGE_VERIFYING(0x166, ExRequestClassChangeVerifying::new, ConnectionState.IN_GAME),
 	EX_REQUEST_TELEPORT(0x167, ExRequestTeleport::new, ConnectionState.IN_GAME),
 	EX_COSTUME_USE_ITEM(0x168, null, ConnectionState.IN_GAME),
 	EX_COSTUME_LIST(0x169, null, ConnectionState.IN_GAME),

L2J_Mobius_Essence_4.2_DwellingOfSpirits/java/org/l2jmobius/gameserver/network/clientpackets/classchange/ExRequestClassChangeVerifying.java

@@ -0,0 +1,143 @@
+/*
+ * 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.classchange;
+
+import org.l2jmobius.Config;
+import org.l2jmobius.commons.network.PacketReader;
+import org.l2jmobius.gameserver.enums.CategoryType;
+import org.l2jmobius.gameserver.model.actor.instance.PlayerInstance;
+import org.l2jmobius.gameserver.model.quest.QuestState;
+import org.l2jmobius.gameserver.network.GameClient;
+import org.l2jmobius.gameserver.network.clientpackets.IClientIncomingPacket;
+import org.l2jmobius.gameserver.network.serverpackets.classchange.ExClassChangeSetAlarm;
+
+/**
+ * @author Mobius
+ */
+public class ExRequestClassChangeVerifying implements IClientIncomingPacket
+{
+	private int _classId;
+	
+	@Override
+	public boolean read(GameClient client, PacketReader packet)
+	{
+		_classId = packet.readD();
+		return true;
+	}
+	
+	@Override
+	public void run(GameClient client)
+	{
+		if (Config.DISABLE_TUTORIAL)
+		{
+			return;
+		}
+		
+		final PlayerInstance player = client.getPlayer();
+		if (player == null)
+		{
+			return;
+		}
+		
+		if (_classId != player.getClassId().getId())
+		{
+			return;
+		}
+		
+		if (player.isInCategory(CategoryType.FIRST_CLASS_GROUP))
+		{
+			if (!firstClassCheck(player))
+			{
+				return;
+			}
+		}
+		else if (player.isInCategory(CategoryType.SECOND_CLASS_GROUP))
+		{
+			if (!firstClassCheck(player) || !secondClassCheck(player))
+			{
+				return;
+			}
+		}
+		else if (player.isInCategory(CategoryType.THIRD_CLASS_GROUP))
+		{
+			if (!firstClassCheck(player) || !secondClassCheck(player) || !thirdClassCheck(player))
+			{
+				return;
+			}
+		}
+		
+		player.sendPacket(ExClassChangeSetAlarm.STATIC_PACKET);
+	}
+	
+	private boolean firstClassCheck(PlayerInstance player)
+	{
+		QuestState qs = null;
+		if (player.isDeathKnight())
+		{
+			qs = player.getQuestState("Q10959_ChallengingYourDestiny");
+		}
+		else
+		{
+			switch (player.getRace())
+			{
+				case HUMAN:
+				{
+					qs = player.getQuestState("Q10982_SpiderHunt");
+					break;
+				}
+				case ELF:
+				{
+					qs = player.getQuestState("Q10984_CollectSpiderweb");
+					break;
+				}
+				case DARK_ELF:
+				{
+					qs = player.getQuestState("Q10986_SwampMonster");
+					break;
+				}
+				case ORC:
+				{
+					qs = player.getQuestState("Q10988_Conspiracy");
+					break;
+				}
+				case DWARF:
+				{
+					qs = player.getQuestState("Q10990_PoisonExtraction");
+					break;
+				}
+				case KAMAEL:
+				{
+					qs = player.getQuestState("Q10962_NewHorizons");
+					break;
+				}
+			}
+		}
+		return (qs != null) && qs.isCompleted();
+	}
+	
+	private boolean secondClassCheck(PlayerInstance player)
+	{
+		// SecondClassChange.java has only level check.
+		return player.getLevel() >= 40;
+	}
+	
+	private boolean thirdClassCheck(PlayerInstance player)
+	{
+		final QuestState qs = player.getQuestState("Q10673_SagaOfLegend");
+		return (qs != null) && qs.isCompleted();
+	}
+}

L2J_Mobius_Essence_5.2_FrostLord/dist/game/data/scripts/quests/Q10956_WeSylphs/Q10956_WeSylphs.java

@@ -19,6 +19,7 @@ package quests.Q10956_WeSylphs;
 import java.util.HashSet;
 import java.util.Set;
 
+import org.l2jmobius.Config;
 import org.l2jmobius.gameserver.data.xml.CategoryData;
 import org.l2jmobius.gameserver.enums.CategoryType;
 import org.l2jmobius.gameserver.enums.QuestSound;
@@ -26,6 +27,11 @@ import org.l2jmobius.gameserver.enums.Race;
 import org.l2jmobius.gameserver.model.Location;
 import org.l2jmobius.gameserver.model.actor.Npc;
 import org.l2jmobius.gameserver.model.actor.instance.PlayerInstance;
+import org.l2jmobius.gameserver.model.events.EventType;
+import org.l2jmobius.gameserver.model.events.ListenerRegisterType;
+import org.l2jmobius.gameserver.model.events.annotations.RegisterEvent;
+import org.l2jmobius.gameserver.model.events.annotations.RegisterType;
+import org.l2jmobius.gameserver.model.events.impl.creature.player.OnPlayerLogin;
 import org.l2jmobius.gameserver.model.holders.ItemHolder;
 import org.l2jmobius.gameserver.model.holders.NpcLogListHolder;
 import org.l2jmobius.gameserver.model.quest.Quest;
@@ -211,4 +217,31 @@ public class Q10956_WeSylphs extends Quest
 		}
 		return super.getNpcLogList(player);
 	}
+	
+	@RegisterEvent(EventType.ON_PLAYER_LOGIN)
+	@RegisterType(ListenerRegisterType.GLOBAL_PLAYERS)
+	public void OnPlayerLogin(OnPlayerLogin event)
+	{
+		if (Config.DISABLE_TUTORIAL)
+		{
+			return;
+		}
+		
+		final PlayerInstance player = event.getPlayer();
+		if (player == null)
+		{
+			return;
+		}
+		
+		if (!CategoryData.getInstance().isInCategory(CategoryType.FIRST_CLASS_GROUP, player.getClassId().getId()))
+		{
+			return;
+		}
+		
+		final QuestState qs = getQuestState(player, false);
+		if ((qs != null) && qs.isCompleted())
+		{
+			player.sendPacket(ExClassChangeSetAlarm.STATIC_PACKET);
+		}
+	}
 }

L2J_Mobius_Essence_5.2_FrostLord/java/org/l2jmobius/gameserver/network/ExIncomingPackets.java

@@ -46,6 +46,7 @@ import org.l2jmobius.gameserver.network.clientpackets.ceremonyofchaos.RequestCan
 import org.l2jmobius.gameserver.network.clientpackets.ceremonyofchaos.RequestCuriousHouseHtml;
 import org.l2jmobius.gameserver.network.clientpackets.ceremonyofchaos.RequestJoinCuriousHouse;
 import org.l2jmobius.gameserver.network.clientpackets.classchange.ExRequestClassChange;
+import org.l2jmobius.gameserver.network.clientpackets.classchange.ExRequestClassChangeVerifying;
 import org.l2jmobius.gameserver.network.clientpackets.collection.RequestCollectionCloseUI;
 import org.l2jmobius.gameserver.network.clientpackets.collection.RequestCollectionFavoriteList;
 import org.l2jmobius.gameserver.network.clientpackets.collection.RequestCollectionReceiveReward;
@@ -527,7 +528,7 @@ public enum ExIncomingPackets implements IIncomingPackets<GameClient>
 	// 228
 	EX_OPEN_HTML(0x164, ExOpenHtml::new, ConnectionState.IN_GAME),
 	EX_REQUEST_CLASS_CHANGE(0x165, ExRequestClassChange::new, ConnectionState.IN_GAME),
-	EX_REQUEST_CLASS_CHANGE_VERIFYING(0x166, null, ConnectionState.IN_GAME),
+	EX_REQUEST_CLASS_CHANGE_VERIFYING(0x166, ExRequestClassChangeVerifying::new, ConnectionState.IN_GAME),
 	EX_REQUEST_TELEPORT(0x167, ExRequestTeleport::new, ConnectionState.IN_GAME),
 	EX_COSTUME_USE_ITEM(0x168, null, ConnectionState.IN_GAME),
 	EX_COSTUME_LIST(0x169, null, ConnectionState.IN_GAME),

L2J_Mobius_Essence_5.2_FrostLord/java/org/l2jmobius/gameserver/network/clientpackets/classchange/ExRequestClassChangeVerifying.java

@@ -0,0 +1,142 @@
+/*
+ * 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.classchange;
+
+import org.l2jmobius.commons.network.PacketReader;
+import org.l2jmobius.gameserver.enums.CategoryType;
+import org.l2jmobius.gameserver.model.actor.instance.PlayerInstance;
+import org.l2jmobius.gameserver.model.quest.QuestState;
+import org.l2jmobius.gameserver.network.GameClient;
+import org.l2jmobius.gameserver.network.clientpackets.IClientIncomingPacket;
+import org.l2jmobius.gameserver.network.serverpackets.classchange.ExClassChangeSetAlarm;
+
+/**
+ * @author Mobius
+ */
+public class ExRequestClassChangeVerifying implements IClientIncomingPacket
+{
+	private int _classId;
+	
+	@Override
+	public boolean read(GameClient client, PacketReader packet)
+	{
+		_classId = packet.readD();
+		return true;
+	}
+	
+	@Override
+	public void run(GameClient client)
+	{
+		final PlayerInstance player = client.getPlayer();
+		if (player == null)
+		{
+			return;
+		}
+		
+		if (_classId != player.getClassId().getId())
+		{
+			return;
+		}
+		
+		if (player.isInCategory(CategoryType.FIRST_CLASS_GROUP))
+		{
+			if (!firstClassCheck(player))
+			{
+				return;
+			}
+		}
+		else if (player.isInCategory(CategoryType.SECOND_CLASS_GROUP))
+		{
+			if (!firstClassCheck(player) || !secondClassCheck(player))
+			{
+				return;
+			}
+		}
+		else if (player.isInCategory(CategoryType.THIRD_CLASS_GROUP))
+		{
+			if (!firstClassCheck(player) || !secondClassCheck(player) || !thirdClassCheck(player))
+			{
+				return;
+			}
+		}
+		
+		player.sendPacket(ExClassChangeSetAlarm.STATIC_PACKET);
+	}
+	
+	private boolean firstClassCheck(PlayerInstance player)
+	{
+		QuestState qs = null;
+		if (player.isDeathKnight())
+		{
+			qs = player.getQuestState("Q10959_ChallengingYourDestiny");
+		}
+		else
+		{
+			switch (player.getRace())
+			{
+				case HUMAN:
+				{
+					qs = player.getQuestState("Q10982_SpiderHunt");
+					break;
+				}
+				case ELF:
+				{
+					qs = player.getQuestState("Q10984_CollectSpiderweb");
+					break;
+				}
+				case DARK_ELF:
+				{
+					qs = player.getQuestState("Q10986_SwampMonster");
+					break;
+				}
+				case ORC:
+				{
+					qs = player.getQuestState("Q10988_Conspiracy");
+					break;
+				}
+				case DWARF:
+				{
+					qs = player.getQuestState("Q10990_PoisonExtraction");
+					break;
+				}
+				case KAMAEL:
+				{
+					qs = player.getQuestState("Q10962_NewHorizons");
+					break;
+				}
+				case SYLPH:
+				{
+					qs = player.getQuestState("Q10956_WeSylphs");
+					break;
+				}
+			}
+		}
+		return (qs != null) && qs.isCompleted();
+	}
+	
+	private boolean secondClassCheck(PlayerInstance player)
+	{
+		// SecondClassChange.java has only level check.
+		return player.getLevel() >= 40;
+	}
+	
+	private boolean thirdClassCheck(PlayerInstance player)
+	{
+		final QuestState qs = player.getQuestState("Q10673_SagaOfLegend");
+		return (qs != null) && qs.isCompleted();
+	}
+}