Method FastSetBlocks

src/ChunkMap.cpp:1065–1111

void cChunkMap::FastSetBlocks(sSetBlockList & a_BlockList)
{
	sSetBlockList Failed;
	
	// Process all items from a_BlockList, either successfully or by placing into Failed
	while (!a_BlockList.empty())
	{
		int ChunkX = a_BlockList.front().ChunkX;
		int ChunkZ = a_BlockList.front().ChunkZ;
		cCSLock Lock(m_CSLayers);
		cChunkPtr Chunk = GetChunkNoGen(ChunkX, ZERO_CHUNK_Y, ChunkZ);
		if ((Chunk != NULL) && Chunk->IsValid())
		{
			for (sSetBlockList::iterator itr = a_BlockList.begin(); itr != a_BlockList.end();)
			{
				if ((itr->ChunkX == ChunkX) && (itr->ChunkZ == ChunkZ))
				{
					Chunk->FastSetBlock(itr->x, itr->y, itr->z, itr->BlockType, itr->BlockMeta);
					itr = a_BlockList.erase(itr);
				}
				else
				{
					++itr;
				}
			}  // for itr - a_BlockList[]
		}
		else
		{
			// The chunk is not valid, move all blocks within this chunk to Failed
			for (sSetBlockList::iterator itr = a_BlockList.begin(); itr != a_BlockList.end();)
			{
				if ((itr->ChunkX == ChunkX) && (itr->ChunkZ == ChunkZ))
				{
					Failed.push_back(*itr);
					itr = a_BlockList.erase(itr);
				}
				else
				{
					++itr;
				}
			}  // for itr - a_BlockList[]
		}
	}
	
	// Return the failed:
	std::swap(Failed, a_BlockList);
}