BETA: Fixed `NullPointerException` and little updated '''!DelusionTeleport''' AI.

* Reviewed by: Nos, !UnAfraid, Adry_85

L2J_DataPack_BETA/dist/game/data/scripts/ai/npc/Teleports/DelusionTeleport/DelusionTeleport.java

@@ -27,7 +27,6 @@ import com.l2jserver.gameserver.instancemanager.TownManager;
 import com.l2jserver.gameserver.model.Location;
 import com.l2jserver.gameserver.model.actor.L2Npc;
 import com.l2jserver.gameserver.model.actor.instance.L2PcInstance;
-import com.l2jserver.gameserver.model.quest.QuestState;
 import com.l2jserver.gameserver.model.zone.type.L2TownZone;
 
 /**
@@ -37,18 +36,24 @@ import com.l2jserver.gameserver.model.zone.type.L2TownZone;
 public final class DelusionTeleport extends AbstractNpcAI
 {
 	// NPCs
-	// @formatter:off
 	private static final int[] NPCS =
 	{
-		32484, 32658, 32659, 32660, 32661, 32662, 32663
+		32484, // Pathfinder Worker
+		32658, // Guardian of Eastern Seal
+		32659, // Guardian of Western Seal
+		32660, // Guardian of Southern Seal
+		32661, // Guardian of Northern Seal
+		32662, // Guardian of Great Seal
+		32663, // Guardian of Tower of Seal
 	};
-	// @formatter:on
-	// Misc
+	// Location
 	private static final Location[] HALL_LOCATIONS =
 	{
 		new Location(-114597, -152501, -6750),
 		new Location(-114589, -154162, -6750)
 	};
+	// Player Variables
+	private static final String DELUSION_RETURN = "DELUSION_RETURN";
 	
 	private static final Map<Integer, Location> RETURN_LOCATIONS = new HashMap<>();
 	
@@ -73,22 +78,20 @@ public final class DelusionTeleport extends AbstractNpcAI
 	@Override
 	public String onTalk(L2Npc npc, L2PcInstance player)
 	{
-		final QuestState st = player.getQuestState(getName());
-		
-		if (npc.getId() == NPCS[0])
+		if (npc.getId() == NPCS[0]) // Pathfinder Worker
 		{
 			final L2TownZone town = TownManager.getTown(npc.getX(), npc.getY(), npc.getZ());
 			final int townId = ((town == null) ? 0 : town.getTownId());
-			st.set("return_loc", Integer.toString(townId));
+			player.getVariables().set(DELUSION_RETURN, townId);
 			player.teleToLocation(HALL_LOCATIONS[getRandom(HALL_LOCATIONS.length)], false);
 		}
 		else
 		{
-			player.teleToLocation(RETURN_LOCATIONS.get(st.getInt("return_loc")), true);
-			st.exitQuest(true);
+			final int townId = player.getVariables().getInt(DELUSION_RETURN, 0);
+			player.teleToLocation(RETURN_LOCATIONS.get(townId), true);
+			player.getVariables().remove(DELUSION_RETURN);
 		}
-		
-		return "";
+		return super.onTalk(npc, player);
 	}
 	
 	public static void main(String[] args)