Method SendChunk

src/ChunkSender.cpp:189–253

void cChunkSender::SendChunk(int a_ChunkX, int a_ChunkY, int a_ChunkZ, cClientHandle * a_Client)
{
	ASSERT(m_World != NULL);
	
	// Ask the client if it still wants the chunk:
	if (a_Client != NULL)
	{
		if (!a_Client->WantsSendChunk(a_ChunkX, a_ChunkY, a_ChunkZ))
		{
			return;
		}
	}
	
	// If the chunk has no clients, no need to packetize it:
	if (!m_World->HasChunkAnyClients(a_ChunkX, a_ChunkZ))
	{
		return;
	}
	
	// If the chunk is not valid, do nothing - whoever needs it has queued it for loading / generating
	if (!m_World->IsChunkValid(a_ChunkX, a_ChunkZ))
	{
		return;
	}
	
	// If the chunk is not lighted, queue it for relighting and get notified when it's ready:
	if (!m_World->IsChunkLighted(a_ChunkX, a_ChunkZ))
	{
		m_World->QueueLightChunk(a_ChunkX, a_ChunkZ, &m_Notify);
		return;
	}
	
	// Query and prepare chunk data:
	if (!m_World->GetChunkData(a_ChunkX, a_ChunkZ, *this))
	{
		return;
	}
	cChunkDataSerializer Data(m_BlockTypes, m_BlockMetas, m_BlockLight, m_BlockSkyLight, m_BiomeMap);
	
	// Send:
	if (a_Client == NULL)
	{
		m_World->BroadcastChunkData(a_ChunkX, a_ChunkZ, Data);
	}
	else
	{
		a_Client->SendChunkData(a_ChunkX, a_ChunkZ, Data);
	}
	
	// Send block-entity packets:
	for (sBlockCoords::iterator itr = m_BlockEntities.begin(); itr != m_BlockEntities.end(); ++itr)
	{
		if (a_Client == NULL)
		{
			m_World->BroadcastBlockEntity(itr->m_BlockX, itr->m_BlockY, itr->m_BlockZ);
		}
		else
		{