C++ cBlockArea::Clear方法代码示例

void cBlockArea::CopyTo(cBlockArea & a_Into) const
{
	if (&a_Into == this)
	{
		LOGWARNING("Trying to copy a cBlockArea into self, ignoring.");
		return;
	}
	
	a_Into.Clear();
	a_Into.SetSize(m_SizeX, m_SizeY, m_SizeZ, GetDataTypes());
	a_Into.m_OriginX = m_OriginX;
	a_Into.m_OriginY = m_OriginY;
	a_Into.m_OriginZ = m_OriginZ;
	int BlockCount = GetBlockCount();
	if (HasBlockTypes())
	{
		memcpy(a_Into.m_BlockTypes, m_BlockTypes, BlockCount * sizeof(BLOCKTYPE));
	}
	if (HasBlockMetas())
	{
		memcpy(a_Into.m_BlockMetas, m_BlockMetas, BlockCount * sizeof(NIBBLETYPE));
	}
	if (HasBlockLights())
	{
		memcpy(a_Into.m_BlockLight, m_BlockLight, BlockCount * sizeof(NIBBLETYPE));
	}
	if (HasBlockSkyLights())
	{
		memcpy(a_Into.m_BlockSkyLight, m_BlockSkyLight, BlockCount * sizeof(NIBBLETYPE));
	}
}

void cChunkDesc::ReadBlockArea(cBlockArea & a_Dest, int a_MinRelX, int a_MaxRelX, int a_MinRelY, int a_MaxRelY, int a_MinRelZ, int a_MaxRelZ)
{
	// Normalize the coords:
	if (a_MinRelX > a_MaxRelX)
	{
		std::swap(a_MinRelX, a_MaxRelX);
	}
	if (a_MinRelY > a_MaxRelY)
	{
		std::swap(a_MinRelY, a_MaxRelY);
	}
	if (a_MinRelZ > a_MaxRelZ)
	{
		std::swap(a_MinRelZ, a_MaxRelZ);
	}

	// Include the Max coords:
	a_MaxRelX += 1;
	a_MaxRelY += 1;
	a_MaxRelZ += 1;

	// Check coords validity:
	if (a_MinRelX < 0)
	{
		LOGWARNING("%s: MinRelX less than zero, adjusting to zero", __FUNCTION__);
		a_MinRelX = 0;
	}
	else if (a_MinRelX >= cChunkDef::Width)
	{
		LOGWARNING("%s: MinRelX more than chunk width, adjusting to chunk width", __FUNCTION__);
		a_MinRelX = cChunkDef::Width - 1;
	}
	if (a_MaxRelX < 0)
	{
		LOGWARNING("%s: MaxRelX less than zero, adjusting to zero", __FUNCTION__);
		a_MaxRelX = 0;
	}
	else if (a_MaxRelX > cChunkDef::Width)
	{
		LOGWARNING("%s: MaxRelX more than chunk width, adjusting to chunk width", __FUNCTION__);
		a_MaxRelX = cChunkDef::Width;
	}

	if (a_MinRelY < 0)
	{
		LOGWARNING("%s: MinRelY less than zero, adjusting to zero", __FUNCTION__);
		a_MinRelY = 0;
	}
	else if (a_MinRelY >= cChunkDef::Height)
	{
		LOGWARNING("%s: MinRelY more than chunk height, adjusting to chunk height", __FUNCTION__);
		a_MinRelY = cChunkDef::Height - 1;
	}
	if (a_MaxRelY < 0)
	{
		LOGWARNING("%s: MaxRelY less than zero, adjusting to zero", __FUNCTION__);
		a_MaxRelY = 0;
	}
	else if (a_MaxRelY > cChunkDef::Height)
	{
		LOGWARNING("%s: MaxRelY more than chunk height, adjusting to chunk height", __FUNCTION__);
		a_MaxRelY = cChunkDef::Height;
	}

	if (a_MinRelZ < 0)
	{
		LOGWARNING("%s: MinRelZ less than zero, adjusting to zero", __FUNCTION__);
		a_MinRelZ = 0;
	}
	else if (a_MinRelZ >= cChunkDef::Width)
	{
		LOGWARNING("%s: MinRelZ more than chunk width, adjusting to chunk width", __FUNCTION__);
		a_MinRelZ = cChunkDef::Width - 1;
	}
	if (a_MaxRelZ < 0)
	{
		LOGWARNING("%s: MaxRelZ less than zero, adjusting to zero", __FUNCTION__);
		a_MaxRelZ = 0;
	}
	else if (a_MaxRelZ > cChunkDef::Width)
	{
		LOGWARNING("%s: MaxRelZ more than chunk width, adjusting to chunk width", __FUNCTION__);
		a_MaxRelZ = cChunkDef::Width;
	}

	// Prepare the block area:
	int SizeX = a_MaxRelX - a_MinRelX;
	int SizeY = a_MaxRelY - a_MinRelY;
	int SizeZ = a_MaxRelZ - a_MinRelZ;
	a_Dest.Clear();
	a_Dest.m_Origin.x = m_ChunkX * cChunkDef::Width + a_MinRelX;
	a_Dest.m_Origin.y = a_MinRelY;
	a_Dest.m_Origin.z = m_ChunkZ * cChunkDef::Width + a_MinRelZ;
	a_Dest.SetSize(SizeX, SizeY, SizeZ, cBlockArea::baTypes | cBlockArea::baMetas);

	for (int y = 0; y < SizeY; y++)
	{
		int CDY = a_MinRelY + y;
		for (int z = 0; z < SizeZ; z++)
		{
//.........这里部分代码省略.........

bool cSchematicFileSerializer::LoadFromSchematicNBT(cBlockArea & a_BlockArea, cParsedNBT & a_NBT)
{
	int TMaterials = a_NBT.FindChildByName(a_NBT.GetRoot(), "Materials");
	if ((TMaterials > 0) && (a_NBT.GetType(TMaterials) == TAG_String))
	{
		AString Materials = a_NBT.GetString(TMaterials);
		if (Materials.compare("Alpha") != 0)
		{
			LOG("Materials tag is present and \"%s\" instead of \"Alpha\". Possibly a wrong-format schematic file.", Materials.c_str());
			return false;
		}
	}
	int TSizeX = a_NBT.FindChildByName(a_NBT.GetRoot(), "Width");
	int TSizeY = a_NBT.FindChildByName(a_NBT.GetRoot(), "Height");
	int TSizeZ = a_NBT.FindChildByName(a_NBT.GetRoot(), "Length");
	if (
		(TSizeX < 0) || (TSizeY < 0) || (TSizeZ < 0) ||
		(a_NBT.GetType(TSizeX) != TAG_Short) ||
		(a_NBT.GetType(TSizeY) != TAG_Short) ||
		(a_NBT.GetType(TSizeZ) != TAG_Short)
	)
	{
		LOG("Dimensions are missing from the schematic file (%d, %d, %d), (%d, %d, %d)",
			TSizeX, TSizeY, TSizeZ,
			(TSizeX >= 0) ? a_NBT.GetType(TSizeX) : -1,
			(TSizeY >= 0) ? a_NBT.GetType(TSizeY) : -1,
			(TSizeZ >= 0) ? a_NBT.GetType(TSizeZ) : -1
		);
		return false;
	}

	int SizeX = a_NBT.GetShort(TSizeX);
	int SizeY = a_NBT.GetShort(TSizeY);
	int SizeZ = a_NBT.GetShort(TSizeZ);
	if ((SizeX < 1) || (SizeX > 65535) || (SizeY < 1) || (SizeY > cChunkDef::Height) || (SizeZ < 1) || (SizeZ > 65535))
	{
		LOG("Dimensions are invalid in the schematic file: %d, %d, %d", SizeX, SizeY, SizeZ);
		return false;
	}

	int TBlockTypes = a_NBT.FindChildByName(a_NBT.GetRoot(), "Blocks");
	int TBlockMetas = a_NBT.FindChildByName(a_NBT.GetRoot(), "Data");
	if ((TBlockTypes < 0) || (a_NBT.GetType(TBlockTypes) != TAG_ByteArray))
	{
		LOG("BlockTypes are invalid in the schematic file: %d", TBlockTypes);
		return false;
	}
	bool AreMetasPresent = (TBlockMetas > 0) && (a_NBT.GetType(TBlockMetas) == TAG_ByteArray);

	a_BlockArea.Clear();
	a_BlockArea.SetSize(SizeX, SizeY, SizeZ, AreMetasPresent ? (cBlockArea::baTypes | cBlockArea::baMetas) : cBlockArea::baTypes);

	int TOffsetX = a_NBT.FindChildByName(a_NBT.GetRoot(), "WEOffsetX");
	int TOffsetY = a_NBT.FindChildByName(a_NBT.GetRoot(), "WEOffsetY");
	int TOffsetZ = a_NBT.FindChildByName(a_NBT.GetRoot(), "WEOffsetZ");

	if (
		(TOffsetX < 0) || (TOffsetY < 0) || (TOffsetZ < 0) ||
		(a_NBT.GetType(TOffsetX) != TAG_Int) ||
		(a_NBT.GetType(TOffsetY) != TAG_Int) ||
		(a_NBT.GetType(TOffsetZ) != TAG_Int)
	)
	{
		// Not every schematic file has an offset, so we shoudn't give a warn message.
		a_BlockArea.SetWEOffset(0, 0, 0);
	}
	else
	{
		a_BlockArea.SetWEOffset(a_NBT.GetInt(TOffsetX), a_NBT.GetInt(TOffsetY), a_NBT.GetInt(TOffsetZ));
	}

	// Copy the block types and metas:
	size_t NumTypeBytes = a_BlockArea.GetBlockCount();
	if (a_NBT.GetDataLength(TBlockTypes) < NumTypeBytes)
	{
		LOG("BlockTypes truncated in the schematic file (exp %u, got %u bytes). Loading partial.",
			static_cast<unsigned>(NumTypeBytes), static_cast<unsigned>(a_NBT.GetDataLength(TBlockTypes))
		);
		NumTypeBytes = a_NBT.GetDataLength(TBlockTypes);
	}
	memcpy(a_BlockArea.GetBlockTypes(), a_NBT.GetData(TBlockTypes), NumTypeBytes);

	if (AreMetasPresent)
	{
		size_t NumMetaBytes = a_BlockArea.GetBlockCount();
		if (a_NBT.GetDataLength(TBlockMetas) < NumMetaBytes)
		{
			LOG("BlockMetas truncated in the schematic file (exp %u, got %u bytes). Loading partial.",
				static_cast<unsigned>(NumMetaBytes), static_cast<unsigned>(a_NBT.GetDataLength(TBlockMetas))
			);
			NumMetaBytes = a_NBT.GetDataLength(TBlockMetas);
		}
		memcpy(a_BlockArea.GetBlockMetas(), a_NBT.GetData(TBlockMetas), NumMetaBytes);
	}

	return true;
}