Addition of config for allowing mounts during sieges.

L2J_Mobius_3.0_Helios/java/com/l2jmobius/gameserver/model/actor/L2Character.java

@@ -454,6 +454,11 @@ public abstract class L2Character extends L2Object implements ISkillsHolder, IDe
 	
 	public void transform(Transform transformation, boolean addSkills)
 	{
+		if (!Config.ALLOW_MOUNTS_DURING_SIEGE && transformation.isRiding() && isInsideZone(ZoneId.SIEGE))
+		{
+			return;
+		}
+		
 		_transform = Optional.of(transformation);
 		transformation.onTransform(this, addSkills);
 	}

L2J_Mobius_3.0_Helios/java/com/l2jmobius/gameserver/model/actor/instance/L2PcInstance.java

@@ -6015,6 +6015,11 @@ public final class L2PcInstance extends L2Playable
 	
 	public boolean mount(L2Summon pet)
 	{
+		if (!Config.ALLOW_MOUNTS_DURING_SIEGE && isInsideZone(ZoneId.SIEGE))
+		{
+			return false;
+		}
+		
 		if (!disarmWeapons() || !disarmShield() || isTransformed())
 		{
 			return false;

L2J_Mobius_3.0_Helios/java/com/l2jmobius/gameserver/model/zone/type/L2SiegeZone.java

@@ -161,6 +161,16 @@ public class L2SiegeZone extends L2ZoneType
 					plyer.sendPacket(SystemMessageId.THIS_AREA_CANNOT_BE_ENTERED_WHILE_MOUNTED_ATOP_OF_A_WYVERN_YOU_WILL_BE_DISMOUNTED_FROM_YOUR_WYVERN_IF_YOU_DO_NOT_LEAVE);
 					plyer.enteredNoLanding(DISMOUNT_DELAY);
 				}
+				
+				if (!Config.ALLOW_MOUNTS_DURING_SIEGE && plyer.isMounted())
+				{
+					plyer.dismount();
+				}
+				
+				if (!Config.ALLOW_MOUNTS_DURING_SIEGE && plyer.isTransformed() && plyer.getTransformation().get().isRiding())
+				{
+					plyer.untransform();
+				}
 			}
 		}
 	}