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cBlockArea can now be loaded from a .schematic file.

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git-svn-id: http://mc-server.googlecode.com/svn/trunk@1195 0a769ca7-a7f5-676a-18bf-c427514a06d6
This commit is contained in:
madmaxoft@gmail.com
2013-02-06 22:29:29 +00:00
parent a091413125
commit afdbb1d71b
5 changed files with 187 additions and 3 deletions
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122
source/BlockArea.cpp
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@@ -7,6 +7,8 @@
#include "Globals.h"
#include "BlockArea.h"
#include "World.h"
#include "zlib.h"
#include "WorldStorage/FastNBT.h"
@@ -188,6 +190,46 @@ void cBlockArea::DumpToRawFile(const AString & a_FileName)
bool cBlockArea::LoadFromSchematicFile(const AString & a_FileName)
{
// Un-GZip the contents:
AString Contents;
gzFile File = gzopen(a_FileName.c_str(), "rb");
if (File == NULL)
{
LOG("Cannot open the schematic file \"%s\".", a_FileName.c_str());
return false;
}
// Since the gzip format doesn't really support getting the uncompressed length, we need to read incrementally. Yuck!
int NumBytesRead = 0;
char Buffer[32 KiB];
while ((NumBytesRead = gzread(File, Buffer, sizeof(Buffer))) > 0)
{
Contents.append(Buffer, NumBytesRead);
}
if (NumBytesRead < 0)
{
LOG("Cannot read GZipped data in the schematic file \"%s\", error %d", a_FileName.c_str(), NumBytesRead);
gzclose(File);
return false;
}
gzclose(File);
// TODO: Parse the NBT:
cParsedNBT NBT(Contents.data(), Contents.size());
if (!NBT.IsValid())
{
LOG("Cannot parse the NBT in the schematic file \"%s\".", a_FileName.c_str());
return false;
}
return LoadFromSchematicNBT(NBT);
}
void cBlockArea::Crop(int a_AddMinX, int a_SubMaxX, int a_AddMinY, int a_SubMaxY, int a_AddMinZ, int a_SubMaxZ)
{
if (HasBlockTypes())
@@ -799,3 +841,83 @@ void cBlockArea::CropNibbles(NIBBLEARRAY & a_Array, int a_AddMinX, int a_SubMaxX
bool cBlockArea::LoadFromSchematicNBT(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,
a_NBT.GetType(TSizeX), a_NBT.GetType(TSizeY), a_NBT.GetType(TSizeZ)
);
return false;
}
int SizeX = a_NBT.GetShort(TSizeX);
int SizeY = a_NBT.GetShort(TSizeY);
int SizeZ = a_NBT.GetShort(TSizeZ);
if ((SizeX < 1) || (SizeY < 1) || (SizeZ < 1))
{
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);
SetSize(SizeX, SizeY, SizeZ, AreMetasPresent ? (baTypes | baMetas) : baTypes);
// Copy the block types and metas:
int NumBytes = m_SizeX * m_SizeY * m_SizeZ;
if (a_NBT.GetDataLength(TBlockTypes) < NumBytes)
{
LOG("BlockTypes truncated in the schematic file (exp %d, got %d bytes). Loading partial.",
NumBytes, a_NBT.GetDataLength(TBlockTypes)
);
NumBytes = a_NBT.GetDataLength(TBlockTypes);
}
memcpy(m_BlockTypes, a_NBT.GetData(TBlockTypes), NumBytes);
if (AreMetasPresent)
{
int NumBytes = m_SizeX * m_SizeY * m_SizeZ;
if (a_NBT.GetDataLength(TBlockMetas) < NumBytes)
{
LOG("BlockMetas truncated in the schematic file (exp %d, got %d bytes). Loading partial.",
NumBytes, a_NBT.GetDataLength(TBlockMetas)
);
NumBytes = a_NBT.GetDataLength(TBlockMetas);
}
memcpy(m_BlockMetas, a_NBT.GetData(TBlockMetas), NumBytes);
}
return true;
}