Index: L2Kryos_GameServer/config/system_config/fun/npc_Protector.ini
=====================================================================

+#============================================================#
+# L2NpcProtectorInstance Config
+#============================================================#
+# Tables; 1,2,3,4,5,6,7,8,9,10,15,16,17,18.
+# Default = 15
+NpcProtectorTextCreatureSay = 15
+# Prefix to be displayed before the message
+NpcMessagePrefix = [Anti-PK]
+# Message after eliminating a player with karma.
+ScreenNpcProtectorMessageText = PK is prohibited.
+# Damage that the NPC will inflict.
+NpcProtectorPAtk = 30000
+NpcProtectorMAtk = 30000

Index: head-src/kryos/Config.java
==================================

+
+	// ===============================FUN===============================
+	public static int NPC_PROTECTOR_P_ATK;
+	public static int NPC_PROTECTOR_M_ATK;
+
+	public static int NPC_PROTECTOR_TEXT_CREATURE_SAY;
+	public static String NPC_MESSAGE_PREFIX;
+	public static String NPC_PROTECTOR_MESSAGE_TEXT;
+
+	//==================================================================
+	public static void loadNpcProtectorConfig()
+	{
+		final String NPCSYSTEM = FService.NPCSYSTEM_FILE;
+
+		try
+		{
+			final Properties NpcConfig = new Properties();
+			final InputStream is = new FileInputStream(new File(NPCSYSTEM));
+			NpcConfig.load(is);
+			is.close();
+			// =============================================FUN=============================================
+
+			NPC_PROTECTOR_P_ATK = Integer.parseInt(NpcConfig.getProperty("NpcProtectorPAtk", "30000"));
+			NPC_PROTECTOR_M_ATK = Integer.parseInt(NpcConfig.getProperty("NpcProtectorMAtk", "30000"));
+
+			NPC_PROTECTOR_TEXT_CREATURE_SAY = Integer.parseInt(NpcConfig.getProperty("NpcProtectorTextCreatureSay", "15"));
+			NPC_MESSAGE_PREFIX = NpcConfig.getProperty("NpcMessagePrefix", "[Anti-PK]");
+			NPC_PROTECTOR_MESSAGE_TEXT = NpcConfig.getProperty("ScreenNpcProtectorMessageText", "PK is prohibited.");
+
+			// =============================================================================================
+		}
+		catch (Exception e)
+		{
+			e.printStackTrace();
+			throw new Error("Failed to Load " + NPCSYSTEM + " File.");
+		}
+	}
+

@@

			loadRewardSystemConfig();
+			loadNpcProtectorConfig();

Index: head-src/kryos/FService.java
====================================

+public static final String NPCSYSTEM_FILE = "./config/system_config/fun/npc_Protector.ini";

Index: head-src/kryos/gameserver/model/actor/knownlist/ProtectorKnownList.java
===============================================================================

+package kryos.gameserver.model.actor.knownlist;
+
+import kryos.gameserver.model.L2Object;
+import kryos.gameserver.model.actor.instance.L2NpcProtectorInstance;
+
+public class ProtectorKnownList extends AttackableKnownList
+{
+	private static final int DISTANCE_TO_WATCH = 10000;
+
+	public ProtectorKnownList(L2NpcProtectorInstance activeChar)
+	{
+		super(activeChar);
+	}
+
+	@Override
+	public boolean addKnownObject(L2Object object)
+	{
+
+		double distance = getDistance(object);
+		if (distance > DISTANCE_TO_WATCH)
+		{
+			return false;
+		}
+		return super.addKnownObject(object);
+	}
+
+	private double getDistance(L2Object object)
+	{
+		int dx = getActiveChar().getX() - object.getX();
+		int dy = getActiveChar().getY() - object.getY();
+		int dz = getActiveChar().getZ() - object.getZ();
+		return Math.sqrt(dx*dx + dy*dy + dz*dz);
+	}
+
+	@Override
+	public L2NpcProtectorInstance getActiveChar()
+	{
+		return (L2NpcProtectorInstance) super.getActiveChar();
+	}
+}

Index: head-src/kryos/gameserver/model/actor/instance/L2NpcProtectorInstance.java
==================================================================================

+package kryos.gameserver.model.actor.instance;
+
+import kryos.gameserver.model.L2Character;
+import kryos.gameserver.model.L2Attackable;
+import kryos.gameserver.model.actor.knownlist.ProtectorKnownList;
+import kryos.gameserver.network.serverpackets.ActionFailed;
+import kryos.gameserver.templates.L2NpcTemplate;
+import kryos.gameserver.thread.ThreadPoolManager;
+import kryos.gameserver.model.L2Object;
+import kryos.gameserver.model.L2World;
+import kryos.Config;
+import kryos.gameserver.ai.CtrlIntention;
+
+public class L2NpcProtectorInstance extends L2Attackable
+{
+	private int spawnX, spawnY, spawnZ;
+	private double pAtk;
+	private double mAtk;
+
+	public L2NpcProtectorInstance(int objectId, L2NpcTemplate template)
+	{
+		super(objectId, template);
+		setKnownList(new ProtectorKnownList(this));
+	}
+
+	@Override
+	public void onSpawn()
+	{
+		super.onSpawn();
+
+		spawnX = getX();
+		spawnY = getY();
+		spawnZ = getZ();
+
+		pAtk = Config.NPC_PROTECTOR_P_ATK;
+		mAtk = Config.NPC_PROTECTOR_M_ATK;
+
+		ThreadPoolManager.getInstance().scheduleGeneralAtFixedRate(() ->
+		{
+			try
+			{
+				scanForPKs();
+			}
+			catch (Exception e)
+			{
+				e.printStackTrace();
+			}
+		}, 100, 100);
+	}
+
+	private void scanForPKs()
+	{
+		L2PcInstance targetPK = null;
+		double minDistance = Double.MAX_VALUE;
+
+		for (L2Character cha : getAggroList().keySet())
+		{
+			if (cha instanceof L2PcInstance)
+			{
+				L2PcInstance pc = (L2PcInstance) cha;
+				if (pc.isDead() || pc.getKarma() <= 0)
+				{
+					stopHating(pc);
+				}
+			}
+		}
+
+		for (L2PcInstance pc : L2World.getInstance().getAllPlayers())
+		{
+			if (pc.getKarma() <= 0 || pc.isDead())
+				continue;
+
+			double distance = getDistance(pc);
+			if (distance > 10000)
+				continue;
+
+			if (!getKnownList().knowsObject(pc))
+			{
+				getKnownList().addKnownObject(pc);
+			}
+
+			if (distance < minDistance)
+			{
+				targetPK = pc;
+				minDistance = distance;
+			}
+		}
+
+		if (targetPK != null)
+		{
+			if (getAI().getIntention() != CtrlIntention.AI_INTENTION_ATTACK || getTarget() != targetPK)
+			{
+				getAI().setIntention(CtrlIntention.AI_INTENTION_ATTACK, targetPK);
+			}
+			double physDamage = pAtk - targetPK.getPDef(this);
+			if (physDamage < 0) physDamage = 1000;
+
+			double magicDamage = mAtk - targetPK.getMDef(this, null);
+			if (magicDamage < 0) magicDamage = 500;
+
+			double totalDamage = physDamage + magicDamage;
+			targetPK.reduceCurrentHp(totalDamage, this, true);
+		}
+		else
+		{
+			if (getX() != spawnX || getY() != spawnY)
+			{
+				teleToLocation(spawnX, spawnY, spawnZ);
+			}
+			if (getAI().getIntention() != CtrlIntention.AI_INTENTION_IDLE)
+			{
+				getAI().setIntention(CtrlIntention.AI_INTENTION_IDLE, null);
+			}
+		}
+	}
+
+	private double getDistance(L2Object obj)
+	{
+		int dx = getX() - obj.getX();
+		int dy = getY() - obj.getY();
+		int dz = getZ() - obj.getZ();
+		return Math.sqrt(dx*dx + dy*dy + dz*dz);
+	}
+
+	@Override
+	public void onAction(L2PcInstance player)
+	{
+		player.sendPacket(new ActionFailed());
+	}
+
+	@Override
+	public boolean isAutoAttackable(L2Character attacker)
+	{
+		return false;
+	}
+}

Index: head-src/kryos/gameserver/model/actor/instance/L2PcInstance.java
========================================================================

@@

	@Override
	public boolean doDie(final L2Character killer)
	{
			castle = CastleManager.getInstance().getCastleByOwner(getClan());
			if (castle != null)
			{
				castle.destroyClanGate();
				castle = null;
			}
		}

		if (killer != null)
		{
			final L2PcInstance pk = killer.getActingPlayer();
+
+			// Message sent by the L2NpcProtectorInstance
+			if (killer instanceof L2NpcProtectorInstance)
+			{
+				L2NpcProtectorInstance npc = (L2NpcProtectorInstance) killer;
+				if (getKarma() > 0)
+				{
+					String regionName = MapRegionTable.getInstance().getClosestTownName(this);
+
+					CreatureSay cs = new CreatureSay(npc.getObjectId(),Config.NPC_PROTECTOR_TEXT_CREATURE_SAY, "", Config.NPC_MESSAGE_PREFIX +" " + getName() + " (" + regionName + ") " + Config.NPC_PROTECTOR_MESSAGE_TEXT );

+					Broadcast.toAllOnlinePlayers(cs);
+				}
+			}
+			// /////////////////////////////
+
			if (pk != null)
			{
				if (Config.ENABLE_PK_INFO)
				{
					doPkInfo(pk);
				}

				if (atEvent)
				{
					pk.kills.add(getName());
				}

				if (_inEventTvT && pk._inEventTvT)