Index: ps/trunk/binaries/data/mods/public/simulation/components/TerritoryDecayManager.js
===================================================================
--- ps/trunk/binaries/data/mods/public/simulation/components/TerritoryDecayManager.js
+++ ps/trunk/binaries/data/mods/public/simulation/components/TerritoryDecayManager.js
@@ -0,0 +1,12 @@
+function TerritoryDecayManager() {}
+
+TerritoryDecayManager.prototype.Schema =
+        "<a:component type='system'/><empty/>";
+
+TerritoryDecayManager.prototype.SetBlinkingEntities = function()
+{
+	for (let ent of Engine.GetEntitiesWithInterface(IID_TerritoryDecay))
+		Engine.QueryInterface(ent, IID_TerritoryDecay).IsConnected();
+};
+
+Engine.RegisterSystemComponentType(IID_TerritoryDecayManager, "TerritoryDecayManager", TerritoryDecayManager);
Index: ps/trunk/source/simulation2/TypeList.h
===================================================================
--- ps/trunk/source/simulation2/TypeList.h
+++ ps/trunk/source/simulation2/TypeList.h
@@ -168,6 +168,9 @@
 INTERFACE(Terrain)
 COMPONENT(Terrain)
 
+INTERFACE(TerritoryDecayManager)
+COMPONENT(TerritoryDecayManagerScripted)
+
 INTERFACE(TerritoryInfluence)
 COMPONENT(TerritoryInfluence)
 
Index: ps/trunk/source/simulation2/components/CCmpAIManager.cpp
===================================================================
--- ps/trunk/source/simulation2/components/CCmpAIManager.cpp
+++ ps/trunk/source/simulation2/components/CCmpAIManager.cpp
@@ -967,6 +967,7 @@
 	virtual void Init(const CParamNode& UNUSED(paramNode))
 	{
 		m_TerritoriesDirtyID = 0;
+		m_TerritoriesDirtyBlinkingID = 0;
 		m_JustDeserialized = false;
 
 		StartLoadEntityTemplates();
@@ -1086,10 +1087,8 @@
 		Grid<u8> dummyGrid2;
 		const Grid<u8>* territoryMap = &dummyGrid2;
 		CmpPtr<ICmpTerritoryManager> cmpTerritoryManager(GetSystemEntity());
-		if (cmpTerritoryManager && cmpTerritoryManager->NeedUpdate(&m_TerritoriesDirtyID))
-		{
+		if (cmpTerritoryManager && cmpTerritoryManager->NeedUpdate(&m_TerritoriesDirtyID, &m_TerritoriesDirtyBlinkingID))
 			territoryMap = &cmpTerritoryManager->GetTerritoryGrid();
-		}
 
 		LoadPathfinderClasses(state);
 		std::map<std::string, pass_class_t> nonPathfindingPassClassMasks, pathfindingPassClassMasks;
@@ -1150,7 +1149,7 @@
 		// Update the territory data
 		// Since getting the territory grid can trigger a recalculation, we check NeedUpdate first
 		CmpPtr<ICmpTerritoryManager> cmpTerritoryManager(GetSystemEntity());
-		if (cmpTerritoryManager && (cmpTerritoryManager->NeedUpdate(&m_TerritoriesDirtyID) || m_JustDeserialized))
+		if (cmpTerritoryManager && (cmpTerritoryManager->NeedUpdate(&m_TerritoriesDirtyID, &m_TerritoriesDirtyBlinkingID) || m_JustDeserialized))
 		{
 			const Grid<u8>& territoryMap = cmpTerritoryManager->GetTerritoryGrid();
 			m_Worker.UpdateTerritoryMap(territoryMap);
@@ -1190,6 +1189,7 @@
 	size_t m_TemplateLoadedIdx;
 	std::vector<std::pair<std::string, const CParamNode*> > m_Templates;
 	size_t m_TerritoriesDirtyID;
+	size_t m_TerritoriesDirtyBlinkingID;
 
 	bool m_JustDeserialized;
 
Index: ps/trunk/source/simulation2/components/CCmpTerritoryManager.cpp
===================================================================
--- ps/trunk/source/simulation2/components/CCmpTerritoryManager.cpp
+++ ps/trunk/source/simulation2/components/CCmpTerritoryManager.cpp
@@ -36,6 +36,7 @@
 #include "simulation2/components/ICmpPlayer.h"
 #include "simulation2/components/ICmpPlayerManager.h"
 #include "simulation2/components/ICmpPosition.h"
+#include "simulation2/components/ICmpTerritoryDecayManager.h"
 #include "simulation2/components/ICmpTerritoryInfluence.h"
 #include "simulation2/helpers/Grid.h"
 #include "simulation2/helpers/Render.h"
@@ -83,8 +84,8 @@
 	float m_BorderSeparation;
 
 	// Player ID   in bits 0-4 (TERRITORY_PLAYER_MASK)
-	// connected flag in bit 4 (TERRITORY_CONNECTED_MASK)
-	// blinking flag  in bit 5 (TERRITORY_BLINKING_MASK)
+	// connected flag in bit 5 (TERRITORY_CONNECTED_MASK)
+	// blinking flag  in bit 6 (TERRITORY_BLINKING_MASK)
 	// processed flag in bit 7 (TERRITORY_PROCESSED_MASK)
 	Grid<u8>* m_Territories;
 
@@ -125,6 +126,7 @@
 		m_TriggerEvent = true;
 		m_EnableLineDebugOverlays = false;
 		m_DirtyID = 1;
+		m_DirtyBlinkingID = 1;
 		m_Visible = true;
 
 		m_AnimTime = 0.0;
@@ -251,8 +253,10 @@
 	// To support lazy updates of territory render data,
 	// we maintain a DirtyID here and increment it whenever territories change;
 	// if a caller has a lower DirtyID then it needs to be updated.
+	// We also do the same thing for blinking updates using DirtyBlinkingID.
 
 	size_t m_DirtyID;
+	size_t m_DirtyBlinkingID;
 
 	void MakeDirty()
 	{
@@ -272,6 +276,17 @@
 		return false;
 	}
 
+	virtual bool NeedUpdate(size_t* dirtyID, size_t* dirtyBlinkingID) const
+	{
+		if (*dirtyID != m_DirtyID || *dirtyBlinkingID != m_DirtyBlinkingID)
+		{
+			*dirtyID = m_DirtyID;
+			*dirtyBlinkingID = m_DirtyBlinkingID;
+			return true;
+		}
+		return false;
+	}
+
 	void CalculateCostGrid();
 
 	void CalculateTerritories();
@@ -538,6 +553,15 @@
 				++m_TerritoryCellCounts[owner];
 		);
 	}
+
+	// Then recomputes the blinking tiles
+       	CmpPtr<ICmpTerritoryDecayManager> cmpTerritoryDecayManager(GetSystemEntity());
+       	if (cmpTerritoryDecayManager)
+	{
+		size_t dirtyBlinkingID = m_DirtyBlinkingID;
+	       	cmpTerritoryDecayManager->SetBlinkingEntities();
+		m_DirtyBlinkingID = dirtyBlinkingID;
+	}
 }
 
 std::vector<STerritoryBoundary> CCmpTerritoryManager::ComputeBoundaries()
@@ -766,6 +790,7 @@
 		else
 			continue;
 	);
+	++m_DirtyBlinkingID;
 	m_BoundaryLinesDirty = true;
 }
 
Index: ps/trunk/source/simulation2/components/ICmpTerritoryDecayManager.h
===================================================================
--- ps/trunk/source/simulation2/components/ICmpTerritoryDecayManager.h
+++ ps/trunk/source/simulation2/components/ICmpTerritoryDecayManager.h
@@ -0,0 +1,32 @@
+/* Copyright (C) 2017 Wildfire Games.
+ * This file is part of 0 A.D.
+ *
+ * 0 A.D. 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 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 0 A.D. 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 0 A.D.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef INCLUDED_ICMPTERRITORYDECAYMANAGER
+#define INCLUDED_ICMPTERRITORYDECAYMANAGER
+
+#include "simulation2/system/Interface.h"
+
+class ICmpTerritoryDecayManager : public IComponent
+{
+public:
+
+	virtual void SetBlinkingEntities() = 0;
+
+	DECLARE_INTERFACE_TYPE(TerritoryDecayManager)
+};
+
+#endif // INCLUDED_ICMPTERRITORYDECAYMANAGER
Index: ps/trunk/source/simulation2/components/ICmpTerritoryDecayManager.cpp
===================================================================
--- ps/trunk/source/simulation2/components/ICmpTerritoryDecayManager.cpp
+++ ps/trunk/source/simulation2/components/ICmpTerritoryDecayManager.cpp
@@ -0,0 +1,40 @@
+/* Copyright (C) 2017 Wildfire Games.
+ * This file is part of 0 A.D.
+ *
+ * 0 A.D. 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 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 0 A.D. 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 0 A.D.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "precompiled.h"
+
+#include "ICmpTerritoryDecayManager.h"
+
+#include "simulation2/system/InterfaceScripted.h"
+#include "simulation2/scripting/ScriptComponent.h"
+
+BEGIN_INTERFACE_WRAPPER(TerritoryDecayManager)
+END_INTERFACE_WRAPPER(TerritoryDecayManager)
+
+class CCmpTerritoryDecayManagerScripted : public ICmpTerritoryDecayManager
+{
+public:
+	DEFAULT_SCRIPT_WRAPPER(TerritoryDecayManagerScripted)
+
+	virtual void SetBlinkingEntities()
+	{
+		return m_Script.CallVoid("SetBlinkingEntities");
+	}
+
+};
+
+REGISTER_COMPONENT_SCRIPT_WRAPPER(TerritoryDecayManagerScripted)
Index: ps/trunk/source/simulation2/components/ICmpTerritoryManager.h
===================================================================
--- ps/trunk/source/simulation2/components/ICmpTerritoryManager.h
+++ ps/trunk/source/simulation2/components/ICmpTerritoryManager.h
@@ -28,6 +28,7 @@
 {
 public:
 	virtual bool NeedUpdate(size_t* dirtyID) const = 0;
+	virtual bool NeedUpdate(size_t* dirtyID, size_t* dirtyBlinkingID) const = 0;
 
 	/**
 	 * Number of pathfinder navcells per territory tile.