cWorldGenerator speedup - doesn't call GetChunk() anymore, not queueing the chunk it's generating to be loaded recursively.

cChunk fix - setting a block to the same value doesn't mark chunk dirty (resulted in un-unloadable chunks)

git-svn-id: http://mc-server.googlecode.com/svn/trunk@279 0a769ca7-a7f5-676a-18bf-c427514a06d6

source/cChunk.cpp

@@ -805,8 +805,6 @@ void cChunk::SetBlock( int a_X, int a_Y, int a_Z, char a_BlockType, char a_Block
 
 	assert(IsValid());  // Is this chunk loaded / generated?
 	
-	MarkDirty();
-	
 	int index = a_Y + (a_Z * 128) + (a_X * 128 * 16);
 	char OldBlockMeta = GetLight( m_BlockMeta, index );
 	char OldBlockType = m_BlockType[index];
@@ -819,6 +817,8 @@ void cChunk::SetBlock( int a_X, int a_Y, int a_Z, char a_BlockType, char a_Block
 		return;
 	}
 
+	MarkDirty();
+	
 	cCSLock Lock(m_CSBlockLists);
 	m_PendingSendBlocks.push_back( index );
 
@@ -871,14 +871,15 @@ void cChunk::FastSetBlock( int a_X, int a_Y, int a_Z, char a_BlockType, char a_B
 
 	assert(IsValid());
 	
-	MarkDirty();
-	
 	const int index = a_Y + (a_Z * 128) + (a_X * 128 * 16);
 	const char OldBlock = m_BlockType[index];
 	if (OldBlock == a_BlockType)
 	{
 		return;
 	}
+
+	MarkDirty();
+	
 	m_BlockType[index] = a_BlockType;
 
 	{
@@ -1107,7 +1108,7 @@ bool cChunk::HasClient( cClientHandle* a_Client )
 
 
 
-bool cChunk::HasAnyClient(void)
+bool cChunk::HasAnyClients(void)
 {
 	cCSLock Lock(m_CSClients);
 	return !m_LoadedByClient.empty();

source/cChunk.h

@@ -117,7 +117,7 @@ public:
 	void AddClient    (cClientHandle* a_Client );
 	void RemoveClient (cClientHandle* a_Client );
 	bool HasClient    (cClientHandle* a_Client );
-	bool HasAnyClient(void);  // Returns true if theres any client in the chunk; false otherwise
+	bool HasAnyClients(void);  // Returns true if theres any client in the chunk; false otherwise
 
 	void AddEntity( cEntity * a_Entity );
 	void RemoveEntity( cEntity * a_Entity);

source/cChunkGenerator.cpp

@@ -53,11 +53,11 @@ bool cChunkGenerator::Start(cWorld * a_World, const AString & a_WorldGeneratorNa
 	
 	if (a_WorldGeneratorName.compare("Test") == 0 )
 	{
-		m_pWorldGenerator = new cWorldGenerator_Test();
+		m_pWorldGenerator = new cWorldGenerator_Test(a_World);
 	}
 	else	// Default
 	{
-		m_pWorldGenerator = new cWorldGenerator();
+		m_pWorldGenerator = new cWorldGenerator(a_World);
 	}
 	
 	return super::Start();
@@ -129,17 +129,22 @@ void cChunkGenerator::Execute(void)
 		bool SkipEnabled = (m_Queue.size() > QUEUE_SKIP_LIMIT);
 		Lock.Unlock();			// Unlock ASAP
 
-		cChunkPtr Chunk = m_World->GetChunk(coords.m_ChunkX, 0, coords.m_ChunkZ);
+		if (
-		if ((Chunk != NULL) && (Chunk->IsValid() || (SkipEnabled && !Chunk->HasAnyClient())))
+			m_World->IsChunkValid(coords.m_ChunkX, 0, coords.m_ChunkZ) ||
+			(SkipEnabled && m_World->HasChunkAnyClients(coords.m_ChunkX, 0, coords.m_ChunkZ))
+		)
 		{
 			// Already generated / overload-skip, ignore request
 			continue;
 		}
 		
 		LOG("Generating chunk [%d, %d]", coords.m_ChunkX, coords.m_ChunkZ);
-		m_pWorldGenerator->GenerateChunk(Chunk);
+		m_pWorldGenerator->GenerateChunk(coords.m_ChunkX, 0, coords.m_ChunkZ);
 		
-		Chunk->SetValid();
+		// Chunk->SetValid();
+
+		// Save the chunk right after generating, so that we don't have to generate it again on next run
+		m_World->GetStorage().QueueSaveChunk(coords.m_ChunkX, coords.m_ChunkZ);
 	}  // while (!bStop)
 }
 

source/cChunkMap.cpp

@@ -276,6 +276,17 @@ bool cChunkMap::IsChunkValid(int a_ChunkX, int a_ChunkY, int a_ChunkZ)
 
 
 
+bool cChunkMap::HasChunkAnyClients(int a_ChunkX, int a_ChunkY, int a_ChunkZ)
+{
+	cCSLock Lock(m_CSLayers);
+	cChunkPtr Chunk = GetChunkNoGen(a_ChunkX, a_ChunkY, a_ChunkZ);
+	return (Chunk != NULL) && Chunk->HasAnyClients();
+}
+
+
+
+
+
 void cChunkMap::Tick( float a_Dt, MTRand & a_TickRandom )
 {
 	cCSLock Lock(m_CSLayers);
@@ -389,7 +400,6 @@ void cChunkMap::cChunkLayer::Save(void)
 
 void cChunkMap::cChunkLayer::UnloadUnusedChunks(void)
 {
-	cWorld * World = m_Parent->GetWorld();
 	for (int i = 0; i < ARRAYCOUNT(m_Chunks); i++)
 	{
 		if ((m_Chunks[i] != NULL) && (m_Chunks[i]->CanUnload()))

source/cChunkMap.h

@@ -43,6 +43,7 @@ public:
 	void SetChunkData      (int a_ChunkX, int a_ChunkY, int a_ChunkZ, const char * a_BlockData, cEntityList & a_Entities, cBlockEntityList & a_BlockEntities);
 	void GetChunkData      (int a_ChunkX, int a_ChunkY, int a_ChunkZ, cChunkDataCallback * a_Callback);
 	bool IsChunkValid      (int a_ChunkX, int a_ChunkY, int a_ChunkZ);
+	bool HasChunkAnyClients(int a_ChunkX, int a_ChunkY, int a_ChunkZ);
 
 	void Tick( float a_Dt, MTRand & a_TickRand );
 

source/cMonsterConfig.cpp

@@ -105,7 +105,7 @@ void cMonsterConfig::AssignAttributes(cMonster *m, const char* n)
 			m->SetAttackRange  (itr->m_AttackRange);
 			m->SetSightDistance(itr->m_SightDistance);
 			m->SetAttackRate   ((int)itr->m_AttackRate);
-			m->SetMaxHealth    ((int)itr->m_MaxHealth);
+			m->SetMaxHealth    ((short)itr->m_MaxHealth);
 		}
 	}  // for itr - m_pState->AttributesList[]
 }

source/cWorld.cpp

@@ -1009,6 +1009,15 @@ bool cWorld::IsChunkValid(int a_ChunkX, int a_ChunkY, int a_ChunkZ) const
 
 
 
+bool cWorld::HasChunkAnyClients(int a_ChunkX, int a_ChunkY, int a_ChunkZ) const
+{
+	return m_ChunkMap->HasChunkAnyClients(a_ChunkX, a_ChunkY, a_ChunkZ);
+}
+
+
+
+
+
 void cWorld::SetMaxPlayers(int iMax)
 {
 	m_MaxPlayers = MAX_PLAYERS;

source/cWorld.h

@@ -77,6 +77,7 @@ public:
 	void SetChunkData      (int a_ChunkX, int a_ChunkY, int a_ChunkZ, const char * a_BlockData, cEntityList & a_Entities, cBlockEntityList & a_BlockEntities);
 	void GetChunkData      (int a_ChunkX, int a_ChunkY, int a_ChunkZ, cChunkDataCallback * a_Callback);
 	bool IsChunkValid      (int a_ChunkX, int a_ChunkY, int a_ChunkZ) const;
+	bool HasChunkAnyClients(int a_ChunkX, int a_ChunkY, int a_ChunkZ) const;
 	
 	// MOTD
 	const AString & GetDescription(void) const {return m_Description; }

source/cWorldGenerator.cpp

@@ -14,7 +14,8 @@
 
 
 
-cWorldGenerator::cWorldGenerator()
+cWorldGenerator::cWorldGenerator(cWorld * a_World) :
+	m_World(a_World)
 {
 }
 
@@ -30,15 +31,19 @@ cWorldGenerator::~cWorldGenerator()
 
 
 
-void cWorldGenerator::GenerateChunk( cChunkPtr a_Chunk )
+void cWorldGenerator::GenerateChunk(int a_ChunkX, int a_ChunkY, int a_ChunkZ)
 {
-	assert(!a_Chunk->IsValid());
+	// TODO: use a raw char array instead of the entire chunk, then set it as chunk's blockdata
 	
-	memset(a_Chunk->pGetBlockData(), 0, cChunk::c_BlockDataSize);
+	cChunkPtr Chunk = m_World->GetChunkNoGen(a_ChunkX, a_ChunkY, a_ChunkZ);
-	GenerateTerrain( a_Chunk );
+	assert(!Chunk->IsValid());
-	GenerateFoliage( a_Chunk );
+	
-	a_Chunk->CalculateHeightmap();
+	memset(Chunk->pGetBlockData(), 0, cChunk::c_BlockDataSize);
-	a_Chunk->CalculateLighting();
+	GenerateTerrain(Chunk);
+	GenerateFoliage(Chunk);
+	Chunk->CalculateHeightmap();
+	Chunk->CalculateLighting();
+	Chunk->SetValid();
 }
 
 

source/cWorldGenerator.h

@@ -15,13 +15,16 @@
 class cWorldGenerator
 {
 public:
-	cWorldGenerator();
+	cWorldGenerator(cWorld * a_World);
 	~cWorldGenerator();
 
-	virtual void GenerateChunk( cChunkPtr a_Chunk );
+	virtual void GenerateChunk(int a_ChunkX, int a_ChunkY, int a_ChunkZ);
 
 protected:
 
+	cWorld * m_World;
+	
+	// Thread-unsafe:
 	MTRand r1;
 
 	virtual void GenerateTerrain( cChunkPtr a_Chunk );

source/cWorldGenerator_Test.h

@@ -10,6 +10,10 @@
 class cWorldGenerator_Test :
 	public cWorldGenerator
 {
+public:
+
+	cWorldGenerator_Test(cWorld * a_World) : cWorldGenerator(a_World) {}
+	
 protected:
 	virtual void GenerateTerrain( cChunkPtr a_Chunk ) override;
 	virtual void GenerateFoliage( cChunkPtr a_Chunk ) override;