14 files changed, 136 insertions, 85 deletions

diff --git a/VC2010/MCServer.vcxproj b/VC2010/MCServer.vcxproj
index 1186a6b5c..4c0a3cca7 100644
--- a/VC2010/MCServer.vcxproj
+++ b/VC2010/MCServer.vcxproj
@@ -522,6 +522,7 @@
     <ClInclude Include="..\source\packets\cPacket_WindowClick.h" />

     <ClInclude Include="..\source\packets\cPacket_WindowClose.h" />

     <ClInclude Include="..\source\packets\cPacket_WindowOpen.h" />

+    <ClInclude Include="..\source\ptr_cChunk.h" />

     <ClInclude Include="..\source\SquirrelBindings.h" />

     <ClInclude Include="..\source\Vector3d.h" />

     <ClInclude Include="..\source\Vector3f.h" />

diff --git a/VC2010/MCServer.vcxproj.filters b/VC2010/MCServer.vcxproj.filters
index 203933c48..4ed54000a 100644
--- a/VC2010/MCServer.vcxproj.filters
+++ b/VC2010/MCServer.vcxproj.filters
@@ -448,6 +448,9 @@
     <Filter Include="cInventory\cCreativeInventory">

       <UniqueIdentifier>{69e6a927-8e49-4d39-af88-f587d17bb8a3}</UniqueIdentifier>

     </Filter>

+    <Filter Include="!Smart_Pointers">

+      <UniqueIdentifier>{9bd7a65c-b60f-4905-ae2b-7c3c7586eaef}</UniqueIdentifier>

+    </Filter>

   </ItemGroup>

   <ItemGroup>

     <ClCompile Include="..\source\cServer.cpp">

@@ -1371,6 +1374,9 @@
     <ClInclude Include="..\source\cSurvivalInventory.h">

       <Filter>cInventory\cSurvivalInventory</Filter>

     </ClInclude>

+    <ClInclude Include="..\source\ptr_cChunk.h">

+      <Filter>!Smart_Pointers</Filter>

+    </ClInclude>

   </ItemGroup>

   <ItemGroup>

     <None Include="..\source\AllToLua.pkg">

diff --git a/source/Vector3d.h b/source/Vector3d.h
index 84b04fce7..f93c2c763 100644
--- a/source/Vector3d.h
+++ b/source/Vector3d.h
@@ -22,6 +22,8 @@ public:			//tolua_export
 	inline double Dot( const Vector3d & a_V ) const { return x * a_V.x + y * a_V.y + z * a_V.z; }										//tolua_export

 	inline Vector3d Cross( const Vector3d & v ) const { return Vector3d( y * v.z - z * v.y, z * v.x - x * v.z, x * v.y - y * v.x ); }	//tolua_export

 

+	inline bool Equals( const Vector3d & v ) const { return (x == v.x && y == v.y && z == v.z ); }										//tolua_export

+

 	void operator += ( const Vector3d& a_V ) { x += a_V.x; y += a_V.y; z += a_V.z; }

 	void operator += ( Vector3d* a_V ) { x += a_V->x; y += a_V->y; z += a_V->z; }

 	void operator -= ( const Vector3d& a_V ) { x -= a_V.x; y -= a_V.y; z -= a_V.z; }

diff --git a/source/cChunk.cpp b/source/cChunk.cpp
index 47e92555f..3af1b0ff3 100644
--- a/source/cChunk.cpp
+++ b/source/cChunk.cpp
@@ -62,6 +62,7 @@ struct cChunk::sChunkState
 	sChunkState()

 		: TotalReferencesEver( 0 )

 		, MinusReferences( 0 )

+		, NumRefs( 0 )

 	{}

 

 	FurnaceEntityList TickBlockEntities;

@@ -79,6 +80,7 @@ struct cChunk::sChunkState
 	ReferenceMap References;

 	int MinusReferences;	// References.size() - MinusReferences = Actual amount of references. This is due to removal of reference without an ID (don't know which to remove, so remove none)

 	int TotalReferencesEver; // For creating a unique reference ID

+	int NumRefs;

 };

 

 cChunk::~cChunk()

@@ -541,8 +543,8 @@ void cChunk::SpreadLight(char* a_LightBuffer)
 	bool bCalcLeft, bCalcRight, bCalcFront, bCalcBack;

 	bCalcLeft = bCalcRight = bCalcFront = bCalcBack = false;

 	// Spread to neighbour chunks X-axis

-	cChunk* LeftChunk = m_World->GetChunkUnreliable( m_PosX-1, m_PosY, m_PosZ );

-	cChunk* RightChunk = m_World->GetChunkUnreliable( m_PosX+1, m_PosY, m_PosZ );

+	ptr_cChunk LeftChunk = m_World->GetChunkUnreliable( m_PosX-1, m_PosY, m_PosZ );

+	ptr_cChunk RightChunk = m_World->GetChunkUnreliable( m_PosX+1, m_PosY, m_PosZ );

 	char* LeftSky = 0, *RightSky = 0;

 	if(LeftChunk) LeftSky = (a_LightBuffer==m_BlockSkyLight)?LeftChunk->pGetSkyLight():LeftChunk->pGetLight();

 	if(RightChunk) RightSky = (a_LightBuffer==m_BlockSkyLight)?RightChunk->pGetSkyLight():RightChunk->pGetLight();

@@ -579,8 +581,8 @@ void cChunk::SpreadLight(char* a_LightBuffer)
 	}

 

 	// Spread to neighbour chunks Z-axis

-	cChunk* FrontChunk = m_World->GetChunkUnreliable( m_PosX, m_PosY, m_PosZ-1 );

-	cChunk* BackChunk = m_World->GetChunkUnreliable( m_PosX, m_PosY, m_PosZ+1 );

+	ptr_cChunk FrontChunk = m_World->GetChunkUnreliable( m_PosX, m_PosY, m_PosZ-1 );

+	ptr_cChunk BackChunk = m_World->GetChunkUnreliable( m_PosX, m_PosY, m_PosZ+1 );

 	char* FrontSky = 0, *BackSky = 0;

 	if(FrontChunk) FrontSky = (a_LightBuffer==m_BlockSkyLight)?FrontChunk->pGetSkyLight():FrontChunk->pGetLight();

 	if(BackChunk) BackSky = (a_LightBuffer==m_BlockSkyLight)?BackChunk->pGetSkyLight():BackChunk->pGetLight();

@@ -1177,60 +1179,28 @@ void cChunk::PositionToWorldPosition(int a_ChunkX, int a_ChunkY, int a_ChunkZ, i
 	a_Z = m_PosZ * 16 + a_ChunkZ;

 }

 

-int cChunk::AddReference( const char* a_Info /* = 0 */ )

+void cChunk::AddReference()

 {

 	m_pState->ReferenceCriticalSection.Lock();

-

-	m_pState->TotalReferencesEver++;

-

-	std::string Info;

-	if( a_Info ) Info = a_Info;

-

-	m_pState->References[ m_pState->TotalReferencesEver ] = Info;

-	

-	int ID = m_pState->TotalReferencesEver;

+	m_pState->NumRefs++;

 	m_pState->ReferenceCriticalSection.Unlock();

-	return ID;

 }

 

-void cChunk::RemoveReference( int a_ID )

+void cChunk::RemoveReference()

 {

 	m_pState->ReferenceCriticalSection.Lock();

-

-	if( a_ID > -1 )	// Remove reference with an ID

-	{

-		bool bFound = false;

-		for( ReferenceMap::iterator itr = m_pState->References.begin(); itr != m_pState->References.end(); ++itr )

-		{

-			if( itr->first == a_ID )

-			{

-				bFound = true;

-				m_pState->References.erase( itr );

-				break;

-			}

-		}

-

-		if( !bFound )

-		{

-			LOGWARN("WARNING: cChunk: Tried to remove reference %i but it could not be found! May cause memory leak", a_ID );

-		}

-	}

-	else		// No ID so add one to MinusReferences

+	m_pState->NumRefs--;

+	if( m_pState->NumRefs < 0 )

 	{

-		m_pState->MinusReferences++;

-		if( (int)m_pState->References.size() - m_pState->MinusReferences < 0 )

-		{

-			LOGWARN("WARNING: cChunk: Tried to remove reference %i, but the chunk is not referenced!", a_ID);

-		}

+		LOGWARN("WARNING: cChunk: Tried to remove reference, but the chunk is not referenced!");

 	}

-

 	m_pState->ReferenceCriticalSection.Unlock();

 }

 

 int cChunk::GetReferenceCount()

 {

 	m_pState->ReferenceCriticalSection.Unlock();

-	int Refs = (int)m_pState->References.size() - m_pState->MinusReferences;

+	int Refs = m_pState->NumRefs;

 	m_pState->ReferenceCriticalSection.Lock();

 	return Refs;

 }

diff --git a/source/cChunk.h b/source/cChunk.h
index 8555e01cf..15577d372 100644
--- a/source/cChunk.h
+++ b/source/cChunk.h
@@ -102,8 +102,8 @@ public:
 	static const int c_BlockDataSize = c_NumBlocks * 2 + (c_NumBlocks/2); // 2.5 * numblocks

 

 	// Reference counting

-	int AddReference( const char* a_Info = 0 ); // a_Info is for debugging

-	void RemoveReference( int a_ID = -1 );

+	void AddReference();

+	void RemoveReference();

 	int GetReferenceCount();

 private:

 	struct sChunkState;

diff --git a/source/cChunkMap.cpp b/source/cChunkMap.cpp
index d05fd4a43..fb23096d8 100644
--- a/source/cChunkMap.cpp
+++ b/source/cChunkMap.cpp
@@ -465,7 +465,7 @@ void cChunkMap::UnloadUnusedChunks()
 			if( Chunk && Chunk->GetClients().size() == 0 && Chunk->GetReferenceCount() <= 0 )

 			{

 			    Chunk->SaveToDisk();

-				World->RemoveSpread( Chunk );

+				World->RemoveSpread( ptr_cChunk( Chunk ) );

 				RemoveChunk( Chunk );

 				delete Chunk;

 			}

diff --git a/source/cClientHandle.cpp b/source/cClientHandle.cpp
index 891140630..46669848e 100644
--- a/source/cClientHandle.cpp
+++ b/source/cClientHandle.cpp
@@ -113,6 +113,8 @@ struct cClientHandle::sClientHandleState
 	cCriticalSection SocketCriticalSection;

 	cSemaphore* pSemaphore;

 

+	Vector3d ConfirmPosition;

+

 	cPacket* PacketMap[256];

 };

 

@@ -126,6 +128,7 @@ cClientHandle::cClientHandle(const cSocket & a_Socket)
 	, m_bSendLoginResponse( false )

 	, m_pState( new sClientHandleState )

 	, m_Ping(1000)

+	, m_bPositionConfirmed( false )

 {

 	LOG("cClientHandle::cClientHandle");

 	

@@ -382,6 +385,7 @@ void cClientHandle::StreamChunksSmart( cChunk** a_Chunks, unsigned int a_NumChun
 		{

 			a_Chunks[ClosestIdx]->Send( this );

 			a_Chunks[ClosestIdx]->AddClient( this );

+			//LOGINFO("CCC: Sending chunk %i %i", a_Chunks[ClosestIdx]->GetPosX(), a_Chunks[ClosestIdx]->GetPosZ() );

 			a_Chunks[ClosestIdx] = 0;

 		}

 	}

@@ -526,6 +530,7 @@ void cClientHandle::HandlePacket( cPacket* a_Packet )
 				StreamChunks();

 

 				// Send position

+				m_pState->ConfirmPosition = m_Player->GetPosition();

 				Send( cPacket_PlayerMoveLook( m_Player ) );

 			}

 			break;

@@ -539,7 +544,32 @@ void cClientHandle::HandlePacket( cPacket* a_Packet )
 			break;

 		}

 	}

-	else // m_bLoggedIn == true

+	else if( !m_bPositionConfirmed ) // m_bLoggedIn == true

+	{

+		switch( a_Packet->m_PacketID )

+		{

+		case E_PLAYERMOVELOOK:

+			{

+				cPacket_PlayerMoveLook* PacketData = reinterpret_cast<cPacket_PlayerMoveLook*>(a_Packet);

+				Vector3d ReceivedPosition = Vector3d( PacketData->m_PosX, PacketData->m_PosY, PacketData->m_PosZ );

+

+				// Test the distance between points with a small/large enough value instead of comparing directly. Floating point inaccuracies might screw stuff up

+				if( ( ReceivedPosition - m_pState->ConfirmPosition ).SqrLength() < 1.0 )

+				{

+					// Test

+					if( ReceivedPosition.Equals( m_pState->ConfirmPosition ) )

+					{

+						LOGINFO("Exact position confirmed by client!");

+					}

+					m_bPositionConfirmed = true;

+				}

+			}

+			break;

+		}

+		

+	}

+

+	if( m_bPositionConfirmed )

 	{

 		switch( a_Packet->m_PacketID )

 		{

@@ -1434,6 +1464,7 @@ void cClientHandle::SendThread( void *lpParam )
 			m_pState->SocketCriticalSection.Unlock();

 			break;

 		}

+		//LOG("Send packet: 0x%2x", Packet->m_PacketID );

 		bool bSuccess = Packet->Send( m_pState->Socket );

 		m_pState->SocketCriticalSection.Unlock();

 		if( !bSuccess )

@@ -1481,6 +1512,7 @@ void cClientHandle::ReceiveThread( void *lpParam )
 		}

 		else

 		{

+			//LOG("Recv packet: 0x%2x", (unsigned char)temp );

 			cPacket* pPacket = self->m_pState->PacketMap[ (unsigned char)temp ];

 			if( pPacket )

 			{

diff --git a/source/cClientHandle.h b/source/cClientHandle.h
index 6f3e3ddc0..0011903b1 100644
--- a/source/cClientHandle.h
+++ b/source/cClientHandle.h
@@ -78,6 +78,7 @@ private:
 	static const unsigned short PING_TIME_MS = 1000; //minecraft sends 1 per 20 ticks (1 second or every 1000 ms)

 

 	bool m_bLoggedIn;

+	bool m_bPositionConfirmed;

 	bool m_bSendLoginResponse;

 

 	bool m_bKeepThreadGoing;

diff --git a/source/cEntity.cpp b/source/cEntity.cpp
index ce7117498..8a841ea87 100644
--- a/source/cEntity.cpp
+++ b/source/cEntity.cpp
@@ -148,7 +148,7 @@ void cEntity::RemoveFromChunk( cChunk* a_Chunk )
 {

 	if( m_World )

 	{

-		cChunk* Chunk = ( a_Chunk ? a_Chunk : m_World->GetChunkUnreliable( m_ChunkX, m_ChunkY, m_ChunkZ ) );

+		cChunk* Chunk = ( a_Chunk ? a_Chunk : (cChunk*)m_World->GetChunkUnreliable( m_ChunkX, m_ChunkY, m_ChunkZ ) );

 		if( Chunk )

 		{

 			cPacket_DestroyEntity DestroyEntity( this );

diff --git a/source/cPickup.cpp b/source/cPickup.cpp
index c665577f0..9e9dc2666 100644
--- a/source/cPickup.cpp
+++ b/source/cPickup.cpp
@@ -197,7 +197,7 @@ void cPickup::HandlePhysics(float a_Dt)
 	Direction WaterDir = World->GetWaterSimulator()->GetFlowingDirection((int) m_Pos->x - 1, (int) m_Pos->y, (int) m_Pos->z - 1);

 

 

-	*m_WaterSpeed *= 0.9;		//Keep old speed but lower it

+	*m_WaterSpeed *= 0.9f;		//Keep old speed but lower it

 

 	switch(WaterDir)

 	{

@@ -256,7 +256,7 @@ void cPickup::HandlePhysics(float a_Dt)
 					}

 				}

 				*m_Pos = Tracer.RealHit;

-				*m_Pos += *Tracer.HitNormal * 0.2;

+				*m_Pos += *Tracer.HitNormal * 0.2f;

 

 			}

 			else

diff --git a/source/cServer.cpp b/source/cServer.cpp
index d3e8e43a7..dc4b5b5c9 100644
--- a/source/cServer.cpp
+++ b/source/cServer.cpp
@@ -277,7 +277,7 @@ void cServer::StartListenClient()
 

 bool cServer::Tick(float a_Dt)

 {

-    //LOG("Tick");

+    //LOG("1. Tick");

 	if( a_Dt > 100.f ) a_Dt = 100.f; // Don't go over 1/10 second

 

 	cSleep::MilliSleep( 50 ); // Don't tick too much

@@ -289,7 +289,6 @@ bool cServer::Tick(float a_Dt)
 		m_Millisecondsf = m_Millisecondsf - (int)m_Millisecondsf;

 	}

 

-

 	cRoot::Get()->TickWorlds( a_Dt ); // TODO - Maybe give all worlds their own thread?

 

 	//World->LockClientHandle(); // TODO - Lock client list

diff --git a/source/cWorld.cpp b/source/cWorld.cpp
index d10d01a0d..fc7447c1d 100644
--- a/source/cWorld.cpp
+++ b/source/cWorld.cpp
@@ -45,6 +45,8 @@
 #include "packets/cPacket_NewInvalidState.h"

 #include "packets/cPacket_Thunderbolt.h"

 

+#include "ptr_cChunk.h"

+

 #include "Vector3d.h"

 

 #include <time.h>

@@ -430,12 +432,11 @@ void cWorld::Tick(float a_Dt)
 	int TimesSpreaded = 0;

 	while( !m_pState->SpreadQueue.empty() && TimesSpreaded < 50 ) // Spread a max of 50 times each tick, otherwise server will hang

 	{

-		cChunk* Chunk = (*m_pState->SpreadQueue.begin());

+		ptr_cChunk& Chunk = *m_pState->SpreadQueue.begin();

 		//LOG("Spreading: %p", Chunk );

 		Chunk->SpreadLight( Chunk->pGetSkyLight() );

 		Chunk->SpreadLight( Chunk->pGetLight() );

 		m_pState->SpreadQueue.remove( Chunk );

-		Chunk->RemoveReference();

 		TimesSpreaded++;

 	}

 	if( TimesSpreaded >= 50 )

@@ -494,7 +495,7 @@ void cWorld::Tick(float a_Dt)
 		FastSetBlock( SetBlockData.x, SetBlockData.y, SetBlockData.z, SetBlockData.BlockID, SetBlockData.BlockMeta );	// If unable to set block, it's added to FastSetBlockQueue again

 	}

 	if( FastSetBlockQueueCopy.size() != m_pState->FastSetBlockQueue.size() )

-	LOG(" Before: %i, after %i" , FastSetBlockQueueCopy.size(), m_pState->FastSetBlockQueue.size() );

+		LOG(" Before: %i, after %i" , FastSetBlockQueueCopy.size(), m_pState->FastSetBlockQueue.size() );

 

 	if( m_Time - m_LastSave > 60*5 ) // Save each 5 minutes

 	{

@@ -712,20 +713,36 @@ cChunk* cWorld::GetChunk( int a_X, int a_Y, int a_Z )
 	cChunk* Chunk = GetChunkUnreliable( a_X, a_Y, a_Z );

 	if( Chunk )	return Chunk;

 

+#if 1 // Current thread chunk generation

+

+	// Found nothing, create a chunk

+	Chunk = new cChunk( a_X, a_Y, a_Z, this );

+	if(Chunk)

+	{

+		LOGWARN("Created new chunk! %i %i", a_X, a_Z);

+		LockChunks();

+		m_ChunkMap->AddChunk( Chunk );

+		UnlockChunks();

+		Chunk->Initialize();

+		return Chunk;

+	}

+	return 0;

+#else // Async thread generation

+

 	// Generate new chunk asynchronously

 	m_pState->pChunkGenerator->GenerateChunk( a_X, a_Z );

 

 	// Could not find chunk, it's being generated, so return 0

 	return 0;

+#endif

 }

 

-cChunk* cWorld::GetChunkUnreliable( int a_X, int a_Y, int a_Z )

+ptr_cChunk cWorld::GetChunkUnreliable( int a_X, int a_Y, int a_Z )

 {

 	LockChunks();

-	cChunk* Chunk = m_ChunkMap->GetChunk( a_X, a_Y, a_Z );

+	ptr_cChunk Chunk( m_ChunkMap->GetChunk( a_X, a_Y, a_Z ) );

 	UnlockChunks();

-	if( Chunk ) return Chunk;

-	return 0;

+	return Chunk;

 }

 

 cChunk* cWorld::GetChunkOfBlock( int a_X, int a_Y, int a_Z )

@@ -761,18 +778,6 @@ void cWorld::FastSetBlock( int a_X, int a_Y, int a_Z, char a_BlockType, char a_B
 		return;

 	}

 

-	// Could not find chunk, so it has been pushed into the generate chunks queue

-	// Check if currently generating the target chunk

-	m_pState->pChunkGenerator->Lock();

-	Chunk = m_pState->pChunkGenerator->GetCurrentlyGenerating();

-	if( Chunk && Chunk->GetPosX() == ChunkX && Chunk->GetPosZ() == ChunkZ )

-	{

-		Chunk->FastSetBlock(X, Y, Z, a_BlockType, a_BlockMeta );

-		m_pState->pChunkGenerator->Unlock();

-		return;

-	}

-	m_pState->pChunkGenerator->Unlock();

-

 	// Unable to set block right now, try again later

 	m_pState->FastSetBlockQueue.push_back( sSetBlockData( a_X, a_Y, a_Z, a_BlockType, a_BlockMeta ) ); 

 }

@@ -1052,23 +1057,20 @@ void cWorld::UnlockChunks()
 	m_ChunksCriticalSection->Unlock();

 }

 

-void cWorld::ReSpreadLighting( cChunk* a_Chunk )

+void cWorld::ReSpreadLighting( const ptr_cChunk& a_Chunk )

 {

 	LockChunks();

-	m_pState->SpreadQueue.remove( a_Chunk );

+	m_pState->SpreadQueue.remove( a_Chunk ); 

 	m_pState->SpreadQueue.push_back( a_Chunk );

-#define STRINGIZE(x) #x

-	a_Chunk->AddReference( __FILE__ ": " STRINGIZE(__LINE__) );

+	//#define STRINGIZE(x) #x

+	//a_Chunk->AddReference( __FILE__ ": " STRINGIZE(__LINE__) );

 	UnlockChunks();

 }

 

-void cWorld::RemoveSpread( cChunk* a_Chunk )

+void cWorld::RemoveSpread( const ptr_cChunk& a_Chunk )

 {

 	LockChunks();

-	size_t SizeBefore = m_pState->SpreadQueue.size();

 	m_pState->SpreadQueue.remove( a_Chunk );

-	if( SizeBefore != m_pState->SpreadQueue.size() )

-		a_Chunk->RemoveReference();

 	UnlockChunks();

 }

 

diff --git a/source/cWorld.h b/source/cWorld.h
index ab99c11b1..38b7ec349 100644
--- a/source/cWorld.h
+++ b/source/cWorld.h
@@ -13,6 +13,7 @@ enum ENUM_ITEM_ID;
 #include <string>

 

 #include "cSimulatorManager.h"

+#include "ptr_cChunk.h"

 

 class cPacket;

 class cRedstone;

@@ -36,7 +37,7 @@ class cWorld													//tolua_export
 public:

 	typedef std::list< cClientHandle* > ClientList;

 	typedef std::list< cEntity* > EntityList;

-	typedef std::list< cChunk* > ChunkList;

+	typedef std::list< ptr_cChunk > ChunkList;

 	typedef std::list< cPlayer* > PlayerList;

 	std::vector<int> m_RSList;

 

@@ -56,7 +57,7 @@ public:
 

 	cChunk* GetChunk( int a_X, int a_Y, int a_Z );

 	cChunk* GetChunkReliable( int a_X, int a_Y, int a_Z );

-	cChunk* GetChunkUnreliable( int a_X, int a_Y, int a_Z );

+	ptr_cChunk GetChunkUnreliable( int a_X, int a_Y, int a_Z );

 	cChunk* GetChunkOfBlock( int a_X, int a_Y, int a_Z );

 	char GetHeight( int a_X, int a_Z );												//tolua_export

 

@@ -148,14 +149,14 @@ public:
 	void LockChunks();

 	void UnlockChunks();

 

-	void ReSpreadLighting( cChunk* a_Chunk );

-	void RemoveSpread( cChunk* a_Chunk );

+	void ReSpreadLighting( const ptr_cChunk& a_Chunk );

+	void RemoveSpread( const ptr_cChunk& a_Chunk );

 

 	void InitializeSpawn();

 

-	void CastThunderbolt ( int, int, int );												//tolua_export

+	void CastThunderbolt ( int, int, int );									//tolua_export

 	void SetWeather ( int );												//tolua_export

-	int GetWeather() { return m_Weather; };												//tolua_export

+	int GetWeather() { return m_Weather; };									//tolua_export

 

 	cWorldGenerator* GetWorldGenerator() { return m_WorldGenerator; }

 private:

diff --git a/source/ptr_cChunk.h b/source/ptr_cChunk.h
new file mode 100644
index 000000000..c3556839c
--- /dev/null
+++ b/source/ptr_cChunk.h
@@ -0,0 +1,37 @@
+#pragma once

+

+#include "cChunk.h"

+

+class ptr_cChunk

+{

+public:

+	ptr_cChunk( cChunk* a_Ptr )

+		: m_Ptr( a_Ptr )

+	{

+		if( m_Ptr )	m_Ptr->AddReference();

+	}

+

+	ptr_cChunk( const ptr_cChunk& a_Clone )

+		: m_Ptr( a_Clone.m_Ptr )

+	{

+		if( m_Ptr )	m_Ptr->AddReference();

+	}

+

+	~ptr_cChunk()

+	{

+		if( m_Ptr ) m_Ptr->RemoveReference();

+	}

+

+	cChunk* operator-> ()

+	{    

+		return m_Ptr;

+	}

+

+	cChunk& operator* () { return *m_Ptr; }

+	bool operator!() { return !m_Ptr; }

+	bool operator==( const ptr_cChunk& a_Other ) { return m_Ptr == a_Other.m_Ptr; }

+	operator bool() { return m_Ptr != 0; }

+	operator cChunk*() { return m_Ptr; }

+private:

+	cChunk* m_Ptr;

+};
\ No newline at end of file