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authorcedeel@gmail.com <cedeel@gmail.com@0a769ca7-a7f5-676a-18bf-c427514a06d6>2012-06-14 15:06:06 +0200
committercedeel@gmail.com <cedeel@gmail.com@0a769ca7-a7f5-676a-18bf-c427514a06d6>2012-06-14 15:06:06 +0200
commit92c59963f82f81aa3202657e7fdbb2592924ede3 (patch)
treeb7eb2474528a4998fa102e3ec9119b908cee08b4 /source/WSSCompact.cpp
parentAdded HOOK_WEATHER_CHANGE. (diff)
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-rw-r--r--source/WSSCompact.cpp1884
1 files changed, 942 insertions, 942 deletions
diff --git a/source/WSSCompact.cpp b/source/WSSCompact.cpp
index 1064528bc..406b55d38 100644
--- a/source/WSSCompact.cpp
+++ b/source/WSSCompact.cpp
@@ -1,942 +1,942 @@
-
-// WSSCompact.cpp
-
-// Interfaces to the cWSSCompact class representing the "compact" storage schema (PAK-files)
-
-#include "Globals.h"
-#include "WSSCompact.h"
-#include "cWorld.h"
-#include "zlib.h"
-#include <json/json.h>
-#include "StringCompression.h"
-#include "cChestEntity.h"
-#include "cSignEntity.h"
-#include "cFurnaceEntity.h"
-#include "BlockID.h"
-
-
-
-
-
-#pragma pack(push, 1)
-/// The chunk header, as stored in the file:
-struct cWSSCompact::sChunkHeader
-{
- int m_ChunkX;
- int m_ChunkZ;
- int m_CompressedSize;
- int m_UncompressedSize;
-} ;
-#pragma pack(pop)
-
-
-
-
-
-/// The maximum number of PAK files that are cached
-const int MAX_PAK_FILES = 16;
-
-/// The maximum number of unsaved chunks before the cPAKFile saves them to disk
-const int MAX_DIRTY_CHUNKS = 16;
-
-
-
-
-
-///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-// cJsonChunkSerializer:
-
-cJsonChunkSerializer::cJsonChunkSerializer(void) :
- m_HasJsonData(false)
-{
-}
-
-
-
-
-
-void cJsonChunkSerializer::Entity(cEntity * a_Entity)
-{
- // TODO: a_Entity->SaveToJson(m_Root);
-}
-
-
-
-
-
-void cJsonChunkSerializer::BlockEntity(cBlockEntity * a_BlockEntity)
-{
- const char * SaveInto = NULL;
- switch (a_BlockEntity->GetBlockType())
- {
- case E_BLOCK_CHEST: SaveInto = "Chests"; break;
- case E_BLOCK_FURNACE: SaveInto = "Furnaces"; break;
- case E_BLOCK_SIGN_POST: SaveInto = "Signs"; break;
- case E_BLOCK_WALLSIGN: SaveInto = "Signs"; break;
-
- default:
- {
- ASSERT(!"Unhandled blocktype in BlockEntities list while saving to JSON");
- break;
- }
- } // switch (BlockEntity->GetBlockType())
- if (SaveInto == NULL)
- {
- return;
- }
-
- Json::Value val;
- a_BlockEntity->SaveToJson(val);
- m_Root[SaveInto].append(val);
- m_HasJsonData = true;
-}
-
-
-
-
-
-bool cJsonChunkSerializer::LightIsValid(bool a_IsLightValid)
-{
- if (!a_IsLightValid)
- {
- return false;
- }
- m_Root["IsLightValid"] = true;
- m_HasJsonData = true;
- return true;
-}
-
-
-
-
-
-///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-// cWSSCompact:
-
-cWSSCompact::~cWSSCompact()
-{
- for (cPAKFiles::iterator itr = m_PAKFiles.begin(); itr != m_PAKFiles.end(); ++itr)
- {
- delete *itr;
- }
-}
-
-
-
-
-
-bool cWSSCompact::LoadChunk(const cChunkCoords & a_Chunk)
-{
- AString ChunkData;
- int UncompressedSize = 0;
- if (!GetChunkData(a_Chunk, UncompressedSize, ChunkData))
- {
- // The reason for failure is already printed in GetChunkData()
- return false;
- }
-
- return LoadChunkFromData(a_Chunk, UncompressedSize, ChunkData, m_World);
-}
-
-
-
-
-
-bool cWSSCompact::SaveChunk(const cChunkCoords & a_Chunk)
-{
- cCSLock Lock(m_CS);
-
- cPAKFile * f = LoadPAKFile(a_Chunk);
- if (f == NULL)
- {
- // For some reason we couldn't locate the file
- LOG("Cannot locate a proper PAK file for chunk [%d, %d]", a_Chunk.m_ChunkX, a_Chunk.m_ChunkZ);
- return false;
- }
- return f->SaveChunk(a_Chunk, m_World);
-}
-
-
-
-
-
-cWSSCompact::cPAKFile * cWSSCompact::LoadPAKFile(const cChunkCoords & a_Chunk)
-{
- // ASSUMES that m_CS has been locked
-
- // We need to retain this weird conversion code, because some edge chunks are in the wrong PAK file
- const int LayerX = (int)(floorf((float)a_Chunk.m_ChunkX / 32.0f));
- const int LayerZ = (int)(floorf((float)a_Chunk.m_ChunkZ / 32.0f));
-
- // Is it already cached?
- for (cPAKFiles::iterator itr = m_PAKFiles.begin(); itr != m_PAKFiles.end(); ++itr)
- {
- if (((*itr) != NULL) && ((*itr)->GetLayerX() == LayerX) && ((*itr)->GetLayerZ() == LayerZ))
- {
- // Move the file to front and return it:
- cPAKFile * f = *itr;
- if (itr != m_PAKFiles.begin())
- {
- m_PAKFiles.erase(itr);
- m_PAKFiles.push_front(f);
- }
- return f;
- }
- }
-
- // Load it anew:
- AString FileName;
- Printf(FileName, "%s/X%i_Z%i.pak", m_World->GetName().c_str(), LayerX, LayerZ );
- cPAKFile * f = new cPAKFile(FileName, LayerX, LayerZ);
- if (f == NULL)
- {
- return NULL;
- }
- m_PAKFiles.push_front(f);
-
- // If there are too many PAK files cached, delete the last one used:
- if (m_PAKFiles.size() > MAX_PAK_FILES)
- {
- delete m_PAKFiles.back();
- m_PAKFiles.pop_back();
- }
- return f;
-}
-
-
-
-
-
-bool cWSSCompact::GetChunkData(const cChunkCoords & a_Chunk, int & a_UncompressedSize, AString & a_Data)
-{
- cCSLock Lock(m_CS);
- cPAKFile * f = LoadPAKFile(a_Chunk);
- if (f == NULL)
- {
- return false;
- }
- return f->GetChunkData(a_Chunk, a_UncompressedSize, a_Data);
-}
-
-
-
-
-
-/*
-// TODO: Rewrite saving to use the same principles as loading
-bool cWSSCompact::SetChunkData(const cChunkCoords & a_Chunk, int a_UncompressedSize, const AString & a_Data)
-{
- cCSLock Lock(m_CS);
- cPAKFile * f = LoadPAKFile(a_Chunk);
- if (f == NULL)
- {
- return false;
- }
- return f->SetChunkData(a_Chunk, a_UncompressedSize, a_Data);
-}
-*/
-
-
-
-
-
-bool cWSSCompact::EraseChunkData(const cChunkCoords & a_Chunk)
-{
- cCSLock Lock(m_CS);
- cPAKFile * f = LoadPAKFile(a_Chunk);
- if (f == NULL)
- {
- return false;
- }
- return f->EraseChunkData(a_Chunk);
-}
-
-
-
-
-
-void cWSSCompact::LoadEntitiesFromJson(Json::Value & a_Value, cEntityList & a_Entities, cBlockEntityList & a_BlockEntities, cWorld * a_World)
-{
- // Load chests
- Json::Value AllChests = a_Value.get("Chests", Json::nullValue);
- if (!AllChests.empty())
- {
- for (Json::Value::iterator itr = AllChests.begin(); itr != AllChests.end(); ++itr )
- {
- Json::Value & Chest = *itr;
- cChestEntity * ChestEntity = new cChestEntity(0,0,0, a_World);
- if (!ChestEntity->LoadFromJson( Chest ) )
- {
- LOGERROR("ERROR READING CHEST FROM JSON!" );
- delete ChestEntity;
- }
- else
- {
- a_BlockEntities.push_back( ChestEntity );
- }
- } // for itr - AllChests[]
- }
-
- // Load furnaces
- Json::Value AllFurnaces = a_Value.get("Furnaces", Json::nullValue);
- if( !AllFurnaces.empty() )
- {
- for( Json::Value::iterator itr = AllFurnaces.begin(); itr != AllFurnaces.end(); ++itr )
- {
- Json::Value & Furnace = *itr;
- cFurnaceEntity * FurnaceEntity = new cFurnaceEntity(0,0,0, a_World);
- if( !FurnaceEntity->LoadFromJson( Furnace ) )
- {
- LOGERROR("ERROR READING FURNACE FROM JSON!" );
- delete FurnaceEntity;
- }
- else
- {
- a_BlockEntities.push_back( FurnaceEntity );
- }
- } // for itr - AllFurnaces[]
- }
-
- // Load signs
- Json::Value AllSigns = a_Value.get("Signs", Json::nullValue);
- if( !AllSigns.empty() )
- {
- for( Json::Value::iterator itr = AllSigns.begin(); itr != AllSigns.end(); ++itr )
- {
- Json::Value & Sign = *itr;
- cSignEntity * SignEntity = new cSignEntity( E_BLOCK_SIGN_POST, 0,0,0, a_World);
- if ( !SignEntity->LoadFromJson( Sign ) )
- {
- LOGERROR("ERROR READING SIGN FROM JSON!" );
- delete SignEntity;
- }
- else
- {
- a_BlockEntities.push_back( SignEntity );
- }
- } // for itr - AllSigns[]
- }
-}
-
-
-
-
-
-///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-// cWSSCompact::cPAKFile
-
-#define READ(Var) \
- if (f.Read(&Var, sizeof(Var)) != sizeof(Var)) \
- { \
- LOGERROR("ERROR READING %s FROM FILE %s (line %d); file offset %d", #Var, m_FileName.c_str(), __LINE__, f.Tell()); \
- return; \
- }
-
-cWSSCompact::cPAKFile::cPAKFile(const AString & a_FileName, int a_LayerX, int a_LayerZ) :
- m_FileName(a_FileName),
- m_LayerX(a_LayerX),
- m_LayerZ(a_LayerZ),
- m_NumDirty(0),
- m_ChunkVersion( CHUNK_VERSION ), // Init with latest version
- m_PakVersion( PAK_VERSION )
-{
- cFile f;
- if (!f.Open(m_FileName, cFile::fmRead))
- {
- return;
- }
-
- // Read headers:
- READ(m_PakVersion);
- if (m_PakVersion != 1)
- {
- LOGERROR("File \"%s\" is in an unknown pak format (%d)", m_FileName.c_str(), m_PakVersion);
- return;
- }
-
- READ(m_ChunkVersion);
- switch( m_ChunkVersion )
- {
- case 1:
- m_ChunkSize.Set(16, 128, 16);
- break;
- case 2:
- case 3:
- m_ChunkSize.Set(16, 256, 16);
- break;
- default:
- LOGERROR("File \"%s\" is in an unknown chunk format (%d)", m_FileName.c_str(), m_ChunkVersion);
- return;
- };
-
- short NumChunks = 0;
- READ(NumChunks);
-
- // Read chunk headers:
- for (int i = 0; i < NumChunks; i++)
- {
- sChunkHeader * Header = new sChunkHeader;
- READ(*Header);
- m_ChunkHeaders.push_back(Header);
- } // for i - chunk headers
-
- // Read chunk data:
- if (f.ReadRestOfFile(m_DataContents) == -1)
- {
- LOGERROR("Cannot read file \"%s\" contents", m_FileName.c_str());
- return;
- }
-
- if( m_ChunkVersion == 1 ) // Convert chunks to version 2
- {
- UpdateChunk1To2();
- }
-#if AXIS_ORDER == AXIS_ORDER_XZY
- if( m_ChunkVersion == 2 ) // Convert chunks to version 3
- {
- UpdateChunk2To3();
- }
-#endif
-}
-
-
-
-
-
-cWSSCompact::cPAKFile::~cPAKFile()
-{
- if (m_NumDirty > 0)
- {
- SynchronizeFile();
- }
- for (sChunkHeaders::iterator itr = m_ChunkHeaders.begin(); itr != m_ChunkHeaders.end(); ++itr)
- {
- delete *itr;
- }
-}
-
-
-
-
-
-bool cWSSCompact::cPAKFile::GetChunkData(const cChunkCoords & a_Chunk, int & a_UncompressedSize, AString & a_Data)
-{
- int ChunkX = a_Chunk.m_ChunkX;
- int ChunkZ = a_Chunk.m_ChunkZ;
- sChunkHeader * Header = NULL;
- int Offset = 0;
- for (sChunkHeaders::iterator itr = m_ChunkHeaders.begin(); itr != m_ChunkHeaders.end(); ++itr)
- {
- if (((*itr)->m_ChunkX == ChunkX) && ((*itr)->m_ChunkZ == ChunkZ))
- {
- Header = *itr;
- break;
- }
- Offset += (*itr)->m_CompressedSize;
- }
- if ((Header == NULL) || (Offset + Header->m_CompressedSize > (int)m_DataContents.size()))
- {
- // Chunk not found / data invalid
- return false;
- }
-
- a_UncompressedSize = Header->m_UncompressedSize;
- a_Data.assign(m_DataContents, Offset, Header->m_CompressedSize);
- return true;
-}
-
-
-
-
-
-bool cWSSCompact::cPAKFile::SaveChunk(const cChunkCoords & a_Chunk, cWorld * a_World)
-{
- if (!SaveChunkToData(a_Chunk, a_World))
- {
- return false;
- }
- if (m_NumDirty > MAX_DIRTY_CHUNKS)
- {
- SynchronizeFile();
- }
- return true;
-}
-
-
-
-
-
-void cWSSCompact::cPAKFile::UpdateChunk1To2()
-{
- int Offset = 0;
- AString NewDataContents;
- int ChunksConverted = 0;
- for (sChunkHeaders::iterator itr = m_ChunkHeaders.begin(); itr != m_ChunkHeaders.end(); ++itr)
- {
- sChunkHeader * Header = *itr;
-
- if( ChunksConverted % 32 == 0 )
- {
- LOGINFO("Updating \"%s\" version 1 to version 2: %d %%", m_FileName.c_str(), (ChunksConverted * 100) / m_ChunkHeaders.size() );
- }
- ChunksConverted++;
-
- AString Data;
- int UncompressedSize = Header->m_UncompressedSize;
- Data.assign(m_DataContents, Offset, Header->m_CompressedSize);
- Offset += Header->m_CompressedSize;
-
- // Crude data integrity check:
- int ExpectedSize = (16*128*16)*2 + (16*128*16)/2; // For version 1
- if (UncompressedSize < ExpectedSize)
- {
- LOGWARNING("Chunk [%d, %d] has too short decompressed data (%d bytes out of %d needed), erasing",
- Header->m_ChunkX, Header->m_ChunkZ,
- UncompressedSize, ExpectedSize
- );
- Offset += Header->m_CompressedSize;
- continue;
- }
-
- // Decompress the data:
- AString UncompressedData;
- {
- int errorcode = UncompressString(Data.data(), Data.size(), UncompressedData, UncompressedSize);
- if (errorcode != Z_OK)
- {
- LOGERROR("Error %d decompressing data for chunk [%d, %d]",
- errorcode,
- Header->m_ChunkX, Header->m_ChunkZ
- );
- Offset += Header->m_CompressedSize;
- continue;
- }
- }
-
- if (UncompressedSize != (int)UncompressedData.size())
- {
- LOGWARNING("Uncompressed data size differs (exp %d bytes, got %d) for chunk [%d, %d]",
- UncompressedSize, UncompressedData.size(),
- Header->m_ChunkX, Header->m_ChunkZ
- );
- Offset += Header->m_CompressedSize;
- continue;
- }
-
-
- // Old version is 128 blocks high with YZX axis order
- char ConvertedData[cChunkDef::BlockDataSize];
- int Index = 0;
- unsigned int InChunkOffset = 0;
- for( int x = 0; x < 16; ++x ) for( int z = 0; z < 16; ++z )
- {
- for( int y = 0; y < 128; ++y )
- {
- ConvertedData[Index++] = UncompressedData[y + z * 128 + x * 128 * 16 + InChunkOffset];
- }
- // Add 128 empty blocks after an old y column
- memset(ConvertedData + Index, E_BLOCK_AIR, 128);
- Index += 128;
- }
- InChunkOffset += (16 * 128 * 16);
- for( int x = 0; x < 16; ++x ) for( int z = 0; z < 16; ++z ) // Metadata
- {
- for( int y = 0; y < 64; ++y )
- {
- ConvertedData[Index++] = UncompressedData[y + z * 64 + x * 64 * 16 + InChunkOffset];
- }
- memset(ConvertedData + Index, 0, 64);
- Index += 64;
- }
- InChunkOffset += (16 * 128 * 16) / 2;
- for( int x = 0; x < 16; ++x ) for( int z = 0; z < 16; ++z ) // Block light
- {
- for( int y = 0; y < 64; ++y )
- {
- ConvertedData[Index++] = UncompressedData[y + z * 64 + x * 64 * 16 + InChunkOffset];
- }
- memset(ConvertedData + Index, 0, 64);
- Index += 64;
- }
- InChunkOffset += (16*128*16)/2;
- for( int x = 0; x < 16; ++x ) for( int z = 0; z < 16; ++z ) // Sky light
- {
- for( int y = 0; y < 64; ++y )
- {
- ConvertedData[Index++] = UncompressedData[y + z * 64 + x * 64 * 16 + InChunkOffset];
- }
- memset(ConvertedData + Index, 0, 64);
- Index += 64;
- }
- InChunkOffset += (16 * 128 * 16) / 2;
-
- AString Converted(ConvertedData, ARRAYCOUNT(ConvertedData));
-
- // Add JSON data afterwards
- if (UncompressedData.size() > InChunkOffset)
- {
- Converted.append( UncompressedData.begin() + InChunkOffset, UncompressedData.end() );
- }
-
- // Re-compress data
- AString CompressedData;
- {
- int errorcode = CompressString(Converted.data(), Converted.size(), CompressedData);
- if (errorcode != Z_OK)
- {
- LOGERROR("Error %d compressing data for chunk [%d, %d]",
- errorcode,
- Header->m_ChunkX, Header->m_ChunkZ
- );
- continue;
- }
- }
-
- // Save into file's cache
- Header->m_UncompressedSize = Converted.size();
- Header->m_CompressedSize = CompressedData.size();
- NewDataContents.append( CompressedData );
- }
-
- // Done converting
- m_DataContents = NewDataContents;
- m_ChunkVersion = 2;
- SynchronizeFile();
-
- LOGINFO("Updated \"%s\" version 1 to version 2", m_FileName.c_str() );
-}
-
-
-
-
-
-void cWSSCompact::cPAKFile::UpdateChunk2To3()
-{
- int Offset = 0;
- AString NewDataContents;
- int ChunksConverted = 0;
- for (sChunkHeaders::iterator itr = m_ChunkHeaders.begin(); itr != m_ChunkHeaders.end(); ++itr)
- {
- sChunkHeader * Header = *itr;
-
- if( ChunksConverted % 32 == 0 )
- {
- LOGINFO("Updating \"%s\" version 2 to version 3: %d %%", m_FileName.c_str(), (ChunksConverted * 100) / m_ChunkHeaders.size() );
- }
- ChunksConverted++;
-
- AString Data;
- int UncompressedSize = Header->m_UncompressedSize;
- Data.assign(m_DataContents, Offset, Header->m_CompressedSize);
- Offset += Header->m_CompressedSize;
-
- // Crude data integrity check:
- const int ExpectedSize = (16*256*16)*2 + (16*256*16)/2; // For version 2
- if (UncompressedSize < ExpectedSize)
- {
- LOGWARNING("Chunk [%d, %d] has too short decompressed data (%d bytes out of %d needed), erasing",
- Header->m_ChunkX, Header->m_ChunkZ,
- UncompressedSize, ExpectedSize
- );
- Offset += Header->m_CompressedSize;
- continue;
- }
-
- // Decompress the data:
- AString UncompressedData;
- {
- int errorcode = UncompressString(Data.data(), Data.size(), UncompressedData, UncompressedSize);
- if (errorcode != Z_OK)
- {
- LOGERROR("Error %d decompressing data for chunk [%d, %d]",
- errorcode,
- Header->m_ChunkX, Header->m_ChunkZ
- );
- Offset += Header->m_CompressedSize;
- continue;
- }
- }
-
- if (UncompressedSize != (int)UncompressedData.size())
- {
- LOGWARNING("Uncompressed data size differs (exp %d bytes, got %d) for chunk [%d, %d]",
- UncompressedSize, UncompressedData.size(),
- Header->m_ChunkX, Header->m_ChunkZ
- );
- Offset += Header->m_CompressedSize;
- continue;
- }
-
- char ConvertedData[ExpectedSize];
- memset(ConvertedData, 0, ExpectedSize);
-
- // Cannot use cChunk::MakeIndex because it might change again?????????
- // For compatibility, use what we know is current
- #define MAKE_2_INDEX( x, y, z ) ( y + (z * 256) + (x * 256 * 16) )
- #define MAKE_3_INDEX( x, y, z ) ( x + (z * 16) + (y * 16 * 16) )
-
- unsigned int InChunkOffset = 0;
- for( int x = 0; x < 16; ++x ) for( int z = 0; z < 16; ++z ) for( int y = 0; y < 256; ++y ) // YZX Loop order is important, in 1.1 Y was first then Z then X
- {
- ConvertedData[ MAKE_3_INDEX(x, y, z) ] = UncompressedData[InChunkOffset];
- ++InChunkOffset;
- } // for y, z, x
-
-
- unsigned int index2 = 0;
- for( int x = 0; x < 16; ++x ) for( int z = 0; z < 16; ++z ) for( int y = 0; y < 256; ++y )
- {
- ConvertedData[ InChunkOffset + MAKE_3_INDEX(x, y, z)/2 ] |= ( (UncompressedData[ InChunkOffset + index2/2 ] >> ((index2&1)*4) ) & 0x0f ) << ((x&1)*4);
- ++index2;
- }
- InChunkOffset += index2 / 2;
- index2 = 0;
-
- for( int x = 0; x < 16; ++x ) for( int z = 0; z < 16; ++z ) for( int y = 0; y < 256; ++y )
- {
- ConvertedData[ InChunkOffset + MAKE_3_INDEX(x, y, z)/2 ] |= ( (UncompressedData[ InChunkOffset + index2/2 ] >> ((index2&1)*4) ) & 0x0f ) << ((x&1)*4);
- ++index2;
- }
- InChunkOffset += index2 / 2;
- index2 = 0;
-
- for( int x = 0; x < 16; ++x ) for( int z = 0; z < 16; ++z ) for( int y = 0; y < 256; ++y )
- {
- ConvertedData[ InChunkOffset + MAKE_3_INDEX(x, y, z)/2 ] |= ( (UncompressedData[ InChunkOffset + index2/2 ] >> ((index2&1)*4) ) & 0x0f ) << ((x&1)*4);
- ++index2;
- }
- InChunkOffset += index2 / 2;
- index2 = 0;
-
- AString Converted(ConvertedData, ExpectedSize);
-
- // Add JSON data afterwards
- if (UncompressedData.size() > InChunkOffset)
- {
- Converted.append( UncompressedData.begin() + InChunkOffset, UncompressedData.end() );
- }
-
- // Re-compress data
- AString CompressedData;
- {
- int errorcode = CompressString(Converted.data(), Converted.size(), CompressedData);
- if (errorcode != Z_OK)
- {
- LOGERROR("Error %d compressing data for chunk [%d, %d]",
- errorcode,
- Header->m_ChunkX, Header->m_ChunkZ
- );
- continue;
- }
- }
-
- // Save into file's cache
- Header->m_UncompressedSize = Converted.size();
- Header->m_CompressedSize = CompressedData.size();
- NewDataContents.append( CompressedData );
- }
-
- // Done converting
- m_DataContents = NewDataContents;
- m_ChunkVersion = 3;
- SynchronizeFile();
-
- LOGINFO("Updated \"%s\" version 2 to version 3", m_FileName.c_str() );
-}
-
-
-
-
-
-bool cWSSCompact::LoadChunkFromData(const cChunkCoords & a_Chunk, int & a_UncompressedSize, const AString & a_Data, cWorld * a_World)
-{
- // Crude data integrity check:
- if (a_UncompressedSize < cChunkDef::BlockDataSize)
- {
- LOGWARNING("Chunk [%d, %d] has too short decompressed data (%d bytes out of %d needed), erasing",
- a_Chunk.m_ChunkX, a_Chunk.m_ChunkZ,
- a_UncompressedSize, cChunkDef::BlockDataSize
- );
- EraseChunkData(a_Chunk);
- return false;
- }
-
- // Decompress the data:
- AString UncompressedData;
- int errorcode = UncompressString(a_Data.data(), a_Data.size(), UncompressedData, a_UncompressedSize);
- if (errorcode != Z_OK)
- {
- LOGERROR("Error %d decompressing data for chunk [%d, %d]",
- errorcode,
- a_Chunk.m_ChunkX, a_Chunk.m_ChunkZ
- );
- return false;
- }
-
- if (a_UncompressedSize != (int)UncompressedData.size())
- {
- LOGWARNING("Uncompressed data size differs (exp %d bytes, got %d) for chunk [%d, %d]",
- a_UncompressedSize, UncompressedData.size(),
- a_Chunk.m_ChunkX, a_Chunk.m_ChunkZ
- );
- return false;
- }
-
- cEntityList Entities;
- cBlockEntityList BlockEntities;
- bool IsLightValid = false;
-
- if (a_UncompressedSize > cChunkDef::BlockDataSize)
- {
- Json::Value root; // will contain the root value after parsing.
- Json::Reader reader;
- if ( !reader.parse( UncompressedData.data() + cChunkDef::BlockDataSize, root, false ) )
- {
- LOGERROR("Failed to parse trailing JSON in chunk [%d, %d]!",
- a_Chunk.m_ChunkX, a_Chunk.m_ChunkZ
- );
- }
- else
- {
- LoadEntitiesFromJson(root, Entities, BlockEntities, a_World);
- IsLightValid = root.get("IsLightValid", false).asBool();
- }
- }
-
- BLOCKTYPE * BlockData = (BLOCKTYPE *)UncompressedData.data();
- NIBBLETYPE * MetaData = (NIBBLETYPE *)(BlockData + cChunkDef::MetaOffset);
- NIBBLETYPE * BlockLight = (NIBBLETYPE *)(BlockData + cChunkDef::LightOffset);
- NIBBLETYPE * SkyLight = (NIBBLETYPE *)(BlockData + cChunkDef::SkyLightOffset);
-
- a_World->SetChunkData(
- a_Chunk.m_ChunkX, a_Chunk.m_ChunkY, a_Chunk.m_ChunkZ,
- BlockData, MetaData,
- IsLightValid ? BlockLight : NULL,
- IsLightValid ? SkyLight : NULL,
- NULL, NULL,
- Entities, BlockEntities,
- false
- );
-
- return true;
-}
-
-
-
-
-
-bool cWSSCompact::cPAKFile::EraseChunkData(const cChunkCoords & a_Chunk)
-{
- int ChunkX = a_Chunk.m_ChunkX;
- int ChunkZ = a_Chunk.m_ChunkZ;
- int Offset = 0;
- for (sChunkHeaders::iterator itr = m_ChunkHeaders.begin(); itr != m_ChunkHeaders.end(); ++itr)
- {
- if (((*itr)->m_ChunkX == ChunkX) && ((*itr)->m_ChunkZ == ChunkZ))
- {
- m_DataContents.erase(Offset, (*itr)->m_CompressedSize);
- delete *itr;
- itr = m_ChunkHeaders.erase(itr);
- return true;
- }
- Offset += (*itr)->m_CompressedSize;
- }
-
- return false;
-}
-
-
-
-
-
-bool cWSSCompact::cPAKFile::SaveChunkToData(const cChunkCoords & a_Chunk, cWorld * a_World)
-{
- // Serialize the chunk:
- cJsonChunkSerializer Serializer;
- if (!a_World->GetChunkData(a_Chunk.m_ChunkX, a_Chunk.m_ChunkY, a_Chunk.m_ChunkZ, Serializer))
- {
- // Chunk not valid
- LOG("cWSSCompact: Trying to save chunk [%d, %d, %d] that has no data, ignoring request.", a_Chunk.m_ChunkX, a_Chunk.m_ChunkY, a_Chunk.m_ChunkZ);
- return false;
- }
-
- AString Data;
- Data.assign((const char *)Serializer.GetBlockData(), cChunkDef::BlockDataSize);
- if (Serializer.HasJsonData())
- {
- AString JsonData;
- Json::StyledWriter writer;
- JsonData = writer.write(Serializer.GetRoot());
- Data.append(JsonData);
- }
-
- // Compress the data:
- AString CompressedData;
- int errorcode = CompressString(Data.data(), Data.size(), CompressedData);
- if ( errorcode != Z_OK )
- {
- LOGERROR("Error %i compressing data for chunk [%d, %d, %d]", errorcode, a_Chunk.m_ChunkX, a_Chunk.m_ChunkY, a_Chunk.m_ChunkZ);
- return false;
- }
-
- // Erase any existing data for the chunk:
- EraseChunkData(a_Chunk);
-
- // Save the header:
- sChunkHeader * Header = new sChunkHeader;
- if (Header == NULL)
- {
- LOGWARNING("Cannot create a new chunk header to save chunk [%d, %d, %d]", a_Chunk.m_ChunkX, a_Chunk.m_ChunkY, a_Chunk.m_ChunkZ);
- return false;
- }
- Header->m_CompressedSize = (int)CompressedData.size();
- Header->m_ChunkX = a_Chunk.m_ChunkX;
- Header->m_ChunkZ = a_Chunk.m_ChunkZ;
- Header->m_UncompressedSize = (int)Data.size();
- m_ChunkHeaders.push_back(Header);
-
- m_DataContents.append(CompressedData.data(), CompressedData.size());
-
- m_NumDirty++;
- return true;
-}
-
-
-
-
-
-#define WRITE(Var) \
- if (f.Write(&Var, sizeof(Var)) != sizeof(Var)) \
- { \
- LOGERROR("cWSSCompact: ERROR writing %s to file \"%s\" (line %d); file offset %d", #Var, m_FileName.c_str(), __LINE__, f.Tell()); \
- return; \
- }
-
-void cWSSCompact::cPAKFile::SynchronizeFile(void)
-{
- cFile f;
- if (!f.Open(m_FileName, cFile::fmWrite))
- {
- LOGERROR("Cannot open PAK file \"%s\" for writing", m_FileName.c_str());
- return;
- }
-
- WRITE(m_PakVersion);
- WRITE(m_ChunkVersion);
- short NumChunks = (short)m_ChunkHeaders.size();
- WRITE(NumChunks);
- for (sChunkHeaders::iterator itr = m_ChunkHeaders.begin(); itr != m_ChunkHeaders.end(); ++itr)
- {
- WRITE(**itr);
- }
- if (f.Write(m_DataContents.data(), m_DataContents.size()) != (int)m_DataContents.size())
- {
- LOGERROR("cWSSCompact: ERROR writing chunk contents to file \"%s\" (line %d); file offset %d", m_FileName.c_str(), __LINE__, f.Tell());
- return;
- }
- m_NumDirty = 0;
-}
-
-
-
-
+
+// WSSCompact.cpp
+
+// Interfaces to the cWSSCompact class representing the "compact" storage schema (PAK-files)
+
+#include "Globals.h"
+#include "WSSCompact.h"
+#include "cWorld.h"
+#include "zlib.h"
+#include <json/json.h>
+#include "StringCompression.h"
+#include "cChestEntity.h"
+#include "cSignEntity.h"
+#include "cFurnaceEntity.h"
+#include "BlockID.h"
+
+
+
+
+
+#pragma pack(push, 1)
+/// The chunk header, as stored in the file:
+struct cWSSCompact::sChunkHeader
+{
+ int m_ChunkX;
+ int m_ChunkZ;
+ int m_CompressedSize;
+ int m_UncompressedSize;
+} ;
+#pragma pack(pop)
+
+
+
+
+
+/// The maximum number of PAK files that are cached
+const int MAX_PAK_FILES = 16;
+
+/// The maximum number of unsaved chunks before the cPAKFile saves them to disk
+const int MAX_DIRTY_CHUNKS = 16;
+
+
+
+
+
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// cJsonChunkSerializer:
+
+cJsonChunkSerializer::cJsonChunkSerializer(void) :
+ m_HasJsonData(false)
+{
+}
+
+
+
+
+
+void cJsonChunkSerializer::Entity(cEntity * a_Entity)
+{
+ // TODO: a_Entity->SaveToJson(m_Root);
+}
+
+
+
+
+
+void cJsonChunkSerializer::BlockEntity(cBlockEntity * a_BlockEntity)
+{
+ const char * SaveInto = NULL;
+ switch (a_BlockEntity->GetBlockType())
+ {
+ case E_BLOCK_CHEST: SaveInto = "Chests"; break;
+ case E_BLOCK_FURNACE: SaveInto = "Furnaces"; break;
+ case E_BLOCK_SIGN_POST: SaveInto = "Signs"; break;
+ case E_BLOCK_WALLSIGN: SaveInto = "Signs"; break;
+
+ default:
+ {
+ ASSERT(!"Unhandled blocktype in BlockEntities list while saving to JSON");
+ break;
+ }
+ } // switch (BlockEntity->GetBlockType())
+ if (SaveInto == NULL)
+ {
+ return;
+ }
+
+ Json::Value val;
+ a_BlockEntity->SaveToJson(val);
+ m_Root[SaveInto].append(val);
+ m_HasJsonData = true;
+}
+
+
+
+
+
+bool cJsonChunkSerializer::LightIsValid(bool a_IsLightValid)
+{
+ if (!a_IsLightValid)
+ {
+ return false;
+ }
+ m_Root["IsLightValid"] = true;
+ m_HasJsonData = true;
+ return true;
+}
+
+
+
+
+
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// cWSSCompact:
+
+cWSSCompact::~cWSSCompact()
+{
+ for (cPAKFiles::iterator itr = m_PAKFiles.begin(); itr != m_PAKFiles.end(); ++itr)
+ {
+ delete *itr;
+ }
+}
+
+
+
+
+
+bool cWSSCompact::LoadChunk(const cChunkCoords & a_Chunk)
+{
+ AString ChunkData;
+ int UncompressedSize = 0;
+ if (!GetChunkData(a_Chunk, UncompressedSize, ChunkData))
+ {
+ // The reason for failure is already printed in GetChunkData()
+ return false;
+ }
+
+ return LoadChunkFromData(a_Chunk, UncompressedSize, ChunkData, m_World);
+}
+
+
+
+
+
+bool cWSSCompact::SaveChunk(const cChunkCoords & a_Chunk)
+{
+ cCSLock Lock(m_CS);
+
+ cPAKFile * f = LoadPAKFile(a_Chunk);
+ if (f == NULL)
+ {
+ // For some reason we couldn't locate the file
+ LOG("Cannot locate a proper PAK file for chunk [%d, %d]", a_Chunk.m_ChunkX, a_Chunk.m_ChunkZ);
+ return false;
+ }
+ return f->SaveChunk(a_Chunk, m_World);
+}
+
+
+
+
+
+cWSSCompact::cPAKFile * cWSSCompact::LoadPAKFile(const cChunkCoords & a_Chunk)
+{
+ // ASSUMES that m_CS has been locked
+
+ // We need to retain this weird conversion code, because some edge chunks are in the wrong PAK file
+ const int LayerX = (int)(floorf((float)a_Chunk.m_ChunkX / 32.0f));
+ const int LayerZ = (int)(floorf((float)a_Chunk.m_ChunkZ / 32.0f));
+
+ // Is it already cached?
+ for (cPAKFiles::iterator itr = m_PAKFiles.begin(); itr != m_PAKFiles.end(); ++itr)
+ {
+ if (((*itr) != NULL) && ((*itr)->GetLayerX() == LayerX) && ((*itr)->GetLayerZ() == LayerZ))
+ {
+ // Move the file to front and return it:
+ cPAKFile * f = *itr;
+ if (itr != m_PAKFiles.begin())
+ {
+ m_PAKFiles.erase(itr);
+ m_PAKFiles.push_front(f);
+ }
+ return f;
+ }
+ }
+
+ // Load it anew:
+ AString FileName;
+ Printf(FileName, "%s/X%i_Z%i.pak", m_World->GetName().c_str(), LayerX, LayerZ );
+ cPAKFile * f = new cPAKFile(FileName, LayerX, LayerZ);
+ if (f == NULL)
+ {
+ return NULL;
+ }
+ m_PAKFiles.push_front(f);
+
+ // If there are too many PAK files cached, delete the last one used:
+ if (m_PAKFiles.size() > MAX_PAK_FILES)
+ {
+ delete m_PAKFiles.back();
+ m_PAKFiles.pop_back();
+ }
+ return f;
+}
+
+
+
+
+
+bool cWSSCompact::GetChunkData(const cChunkCoords & a_Chunk, int & a_UncompressedSize, AString & a_Data)
+{
+ cCSLock Lock(m_CS);
+ cPAKFile * f = LoadPAKFile(a_Chunk);
+ if (f == NULL)
+ {
+ return false;
+ }
+ return f->GetChunkData(a_Chunk, a_UncompressedSize, a_Data);
+}
+
+
+
+
+
+/*
+// TODO: Rewrite saving to use the same principles as loading
+bool cWSSCompact::SetChunkData(const cChunkCoords & a_Chunk, int a_UncompressedSize, const AString & a_Data)
+{
+ cCSLock Lock(m_CS);
+ cPAKFile * f = LoadPAKFile(a_Chunk);
+ if (f == NULL)
+ {
+ return false;
+ }
+ return f->SetChunkData(a_Chunk, a_UncompressedSize, a_Data);
+}
+*/
+
+
+
+
+
+bool cWSSCompact::EraseChunkData(const cChunkCoords & a_Chunk)
+{
+ cCSLock Lock(m_CS);
+ cPAKFile * f = LoadPAKFile(a_Chunk);
+ if (f == NULL)
+ {
+ return false;
+ }
+ return f->EraseChunkData(a_Chunk);
+}
+
+
+
+
+
+void cWSSCompact::LoadEntitiesFromJson(Json::Value & a_Value, cEntityList & a_Entities, cBlockEntityList & a_BlockEntities, cWorld * a_World)
+{
+ // Load chests
+ Json::Value AllChests = a_Value.get("Chests", Json::nullValue);
+ if (!AllChests.empty())
+ {
+ for (Json::Value::iterator itr = AllChests.begin(); itr != AllChests.end(); ++itr )
+ {
+ Json::Value & Chest = *itr;
+ cChestEntity * ChestEntity = new cChestEntity(0,0,0, a_World);
+ if (!ChestEntity->LoadFromJson( Chest ) )
+ {
+ LOGERROR("ERROR READING CHEST FROM JSON!" );
+ delete ChestEntity;
+ }
+ else
+ {
+ a_BlockEntities.push_back( ChestEntity );
+ }
+ } // for itr - AllChests[]
+ }
+
+ // Load furnaces
+ Json::Value AllFurnaces = a_Value.get("Furnaces", Json::nullValue);
+ if( !AllFurnaces.empty() )
+ {
+ for( Json::Value::iterator itr = AllFurnaces.begin(); itr != AllFurnaces.end(); ++itr )
+ {
+ Json::Value & Furnace = *itr;
+ cFurnaceEntity * FurnaceEntity = new cFurnaceEntity(0,0,0, a_World);
+ if( !FurnaceEntity->LoadFromJson( Furnace ) )
+ {
+ LOGERROR("ERROR READING FURNACE FROM JSON!" );
+ delete FurnaceEntity;
+ }
+ else
+ {
+ a_BlockEntities.push_back( FurnaceEntity );
+ }
+ } // for itr - AllFurnaces[]
+ }
+
+ // Load signs
+ Json::Value AllSigns = a_Value.get("Signs", Json::nullValue);
+ if( !AllSigns.empty() )
+ {
+ for( Json::Value::iterator itr = AllSigns.begin(); itr != AllSigns.end(); ++itr )
+ {
+ Json::Value & Sign = *itr;
+ cSignEntity * SignEntity = new cSignEntity( E_BLOCK_SIGN_POST, 0,0,0, a_World);
+ if ( !SignEntity->LoadFromJson( Sign ) )
+ {
+ LOGERROR("ERROR READING SIGN FROM JSON!" );
+ delete SignEntity;
+ }
+ else
+ {
+ a_BlockEntities.push_back( SignEntity );
+ }
+ } // for itr - AllSigns[]
+ }
+}
+
+
+
+
+
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// cWSSCompact::cPAKFile
+
+#define READ(Var) \
+ if (f.Read(&Var, sizeof(Var)) != sizeof(Var)) \
+ { \
+ LOGERROR("ERROR READING %s FROM FILE %s (line %d); file offset %d", #Var, m_FileName.c_str(), __LINE__, f.Tell()); \
+ return; \
+ }
+
+cWSSCompact::cPAKFile::cPAKFile(const AString & a_FileName, int a_LayerX, int a_LayerZ) :
+ m_FileName(a_FileName),
+ m_LayerX(a_LayerX),
+ m_LayerZ(a_LayerZ),
+ m_NumDirty(0),
+ m_ChunkVersion( CHUNK_VERSION ), // Init with latest version
+ m_PakVersion( PAK_VERSION )
+{
+ cFile f;
+ if (!f.Open(m_FileName, cFile::fmRead))
+ {
+ return;
+ }
+
+ // Read headers:
+ READ(m_PakVersion);
+ if (m_PakVersion != 1)
+ {
+ LOGERROR("File \"%s\" is in an unknown pak format (%d)", m_FileName.c_str(), m_PakVersion);
+ return;
+ }
+
+ READ(m_ChunkVersion);
+ switch( m_ChunkVersion )
+ {
+ case 1:
+ m_ChunkSize.Set(16, 128, 16);
+ break;
+ case 2:
+ case 3:
+ m_ChunkSize.Set(16, 256, 16);
+ break;
+ default:
+ LOGERROR("File \"%s\" is in an unknown chunk format (%d)", m_FileName.c_str(), m_ChunkVersion);
+ return;
+ };
+
+ short NumChunks = 0;
+ READ(NumChunks);
+
+ // Read chunk headers:
+ for (int i = 0; i < NumChunks; i++)
+ {
+ sChunkHeader * Header = new sChunkHeader;
+ READ(*Header);
+ m_ChunkHeaders.push_back(Header);
+ } // for i - chunk headers
+
+ // Read chunk data:
+ if (f.ReadRestOfFile(m_DataContents) == -1)
+ {
+ LOGERROR("Cannot read file \"%s\" contents", m_FileName.c_str());
+ return;
+ }
+
+ if( m_ChunkVersion == 1 ) // Convert chunks to version 2
+ {
+ UpdateChunk1To2();
+ }
+#if AXIS_ORDER == AXIS_ORDER_XZY
+ if( m_ChunkVersion == 2 ) // Convert chunks to version 3
+ {
+ UpdateChunk2To3();
+ }
+#endif
+}
+
+
+
+
+
+cWSSCompact::cPAKFile::~cPAKFile()
+{
+ if (m_NumDirty > 0)
+ {
+ SynchronizeFile();
+ }
+ for (sChunkHeaders::iterator itr = m_ChunkHeaders.begin(); itr != m_ChunkHeaders.end(); ++itr)
+ {
+ delete *itr;
+ }
+}
+
+
+
+
+
+bool cWSSCompact::cPAKFile::GetChunkData(const cChunkCoords & a_Chunk, int & a_UncompressedSize, AString & a_Data)
+{
+ int ChunkX = a_Chunk.m_ChunkX;
+ int ChunkZ = a_Chunk.m_ChunkZ;
+ sChunkHeader * Header = NULL;
+ int Offset = 0;
+ for (sChunkHeaders::iterator itr = m_ChunkHeaders.begin(); itr != m_ChunkHeaders.end(); ++itr)
+ {
+ if (((*itr)->m_ChunkX == ChunkX) && ((*itr)->m_ChunkZ == ChunkZ))
+ {
+ Header = *itr;
+ break;
+ }
+ Offset += (*itr)->m_CompressedSize;
+ }
+ if ((Header == NULL) || (Offset + Header->m_CompressedSize > (int)m_DataContents.size()))
+ {
+ // Chunk not found / data invalid
+ return false;
+ }
+
+ a_UncompressedSize = Header->m_UncompressedSize;
+ a_Data.assign(m_DataContents, Offset, Header->m_CompressedSize);
+ return true;
+}
+
+
+
+
+
+bool cWSSCompact::cPAKFile::SaveChunk(const cChunkCoords & a_Chunk, cWorld * a_World)
+{
+ if (!SaveChunkToData(a_Chunk, a_World))
+ {
+ return false;
+ }
+ if (m_NumDirty > MAX_DIRTY_CHUNKS)
+ {
+ SynchronizeFile();
+ }
+ return true;
+}
+
+
+
+
+
+void cWSSCompact::cPAKFile::UpdateChunk1To2()
+{
+ int Offset = 0;
+ AString NewDataContents;
+ int ChunksConverted = 0;
+ for (sChunkHeaders::iterator itr = m_ChunkHeaders.begin(); itr != m_ChunkHeaders.end(); ++itr)
+ {
+ sChunkHeader * Header = *itr;
+
+ if( ChunksConverted % 32 == 0 )
+ {
+ LOGINFO("Updating \"%s\" version 1 to version 2: %d %%", m_FileName.c_str(), (ChunksConverted * 100) / m_ChunkHeaders.size() );
+ }
+ ChunksConverted++;
+
+ AString Data;
+ int UncompressedSize = Header->m_UncompressedSize;
+ Data.assign(m_DataContents, Offset, Header->m_CompressedSize);
+ Offset += Header->m_CompressedSize;
+
+ // Crude data integrity check:
+ int ExpectedSize = (16*128*16)*2 + (16*128*16)/2; // For version 1
+ if (UncompressedSize < ExpectedSize)
+ {
+ LOGWARNING("Chunk [%d, %d] has too short decompressed data (%d bytes out of %d needed), erasing",
+ Header->m_ChunkX, Header->m_ChunkZ,
+ UncompressedSize, ExpectedSize
+ );
+ Offset += Header->m_CompressedSize;
+ continue;
+ }
+
+ // Decompress the data:
+ AString UncompressedData;
+ {
+ int errorcode = UncompressString(Data.data(), Data.size(), UncompressedData, UncompressedSize);
+ if (errorcode != Z_OK)
+ {
+ LOGERROR("Error %d decompressing data for chunk [%d, %d]",
+ errorcode,
+ Header->m_ChunkX, Header->m_ChunkZ
+ );
+ Offset += Header->m_CompressedSize;
+ continue;
+ }
+ }
+
+ if (UncompressedSize != (int)UncompressedData.size())
+ {
+ LOGWARNING("Uncompressed data size differs (exp %d bytes, got %d) for chunk [%d, %d]",
+ UncompressedSize, UncompressedData.size(),
+ Header->m_ChunkX, Header->m_ChunkZ
+ );
+ Offset += Header->m_CompressedSize;
+ continue;
+ }
+
+
+ // Old version is 128 blocks high with YZX axis order
+ char ConvertedData[cChunkDef::BlockDataSize];
+ int Index = 0;
+ unsigned int InChunkOffset = 0;
+ for( int x = 0; x < 16; ++x ) for( int z = 0; z < 16; ++z )
+ {
+ for( int y = 0; y < 128; ++y )
+ {
+ ConvertedData[Index++] = UncompressedData[y + z * 128 + x * 128 * 16 + InChunkOffset];
+ }
+ // Add 128 empty blocks after an old y column
+ memset(ConvertedData + Index, E_BLOCK_AIR, 128);
+ Index += 128;
+ }
+ InChunkOffset += (16 * 128 * 16);
+ for( int x = 0; x < 16; ++x ) for( int z = 0; z < 16; ++z ) // Metadata
+ {
+ for( int y = 0; y < 64; ++y )
+ {
+ ConvertedData[Index++] = UncompressedData[y + z * 64 + x * 64 * 16 + InChunkOffset];
+ }
+ memset(ConvertedData + Index, 0, 64);
+ Index += 64;
+ }
+ InChunkOffset += (16 * 128 * 16) / 2;
+ for( int x = 0; x < 16; ++x ) for( int z = 0; z < 16; ++z ) // Block light
+ {
+ for( int y = 0; y < 64; ++y )
+ {
+ ConvertedData[Index++] = UncompressedData[y + z * 64 + x * 64 * 16 + InChunkOffset];
+ }
+ memset(ConvertedData + Index, 0, 64);
+ Index += 64;
+ }
+ InChunkOffset += (16*128*16)/2;
+ for( int x = 0; x < 16; ++x ) for( int z = 0; z < 16; ++z ) // Sky light
+ {
+ for( int y = 0; y < 64; ++y )
+ {
+ ConvertedData[Index++] = UncompressedData[y + z * 64 + x * 64 * 16 + InChunkOffset];
+ }
+ memset(ConvertedData + Index, 0, 64);
+ Index += 64;
+ }
+ InChunkOffset += (16 * 128 * 16) / 2;
+
+ AString Converted(ConvertedData, ARRAYCOUNT(ConvertedData));
+
+ // Add JSON data afterwards
+ if (UncompressedData.size() > InChunkOffset)
+ {
+ Converted.append( UncompressedData.begin() + InChunkOffset, UncompressedData.end() );
+ }
+
+ // Re-compress data
+ AString CompressedData;
+ {
+ int errorcode = CompressString(Converted.data(), Converted.size(), CompressedData);
+ if (errorcode != Z_OK)
+ {
+ LOGERROR("Error %d compressing data for chunk [%d, %d]",
+ errorcode,
+ Header->m_ChunkX, Header->m_ChunkZ
+ );
+ continue;
+ }
+ }
+
+ // Save into file's cache
+ Header->m_UncompressedSize = Converted.size();
+ Header->m_CompressedSize = CompressedData.size();
+ NewDataContents.append( CompressedData );
+ }
+
+ // Done converting
+ m_DataContents = NewDataContents;
+ m_ChunkVersion = 2;
+ SynchronizeFile();
+
+ LOGINFO("Updated \"%s\" version 1 to version 2", m_FileName.c_str() );
+}
+
+
+
+
+
+void cWSSCompact::cPAKFile::UpdateChunk2To3()
+{
+ int Offset = 0;
+ AString NewDataContents;
+ int ChunksConverted = 0;
+ for (sChunkHeaders::iterator itr = m_ChunkHeaders.begin(); itr != m_ChunkHeaders.end(); ++itr)
+ {
+ sChunkHeader * Header = *itr;
+
+ if( ChunksConverted % 32 == 0 )
+ {
+ LOGINFO("Updating \"%s\" version 2 to version 3: %d %%", m_FileName.c_str(), (ChunksConverted * 100) / m_ChunkHeaders.size() );
+ }
+ ChunksConverted++;
+
+ AString Data;
+ int UncompressedSize = Header->m_UncompressedSize;
+ Data.assign(m_DataContents, Offset, Header->m_CompressedSize);
+ Offset += Header->m_CompressedSize;
+
+ // Crude data integrity check:
+ const int ExpectedSize = (16*256*16)*2 + (16*256*16)/2; // For version 2
+ if (UncompressedSize < ExpectedSize)
+ {
+ LOGWARNING("Chunk [%d, %d] has too short decompressed data (%d bytes out of %d needed), erasing",
+ Header->m_ChunkX, Header->m_ChunkZ,
+ UncompressedSize, ExpectedSize
+ );
+ Offset += Header->m_CompressedSize;
+ continue;
+ }
+
+ // Decompress the data:
+ AString UncompressedData;
+ {
+ int errorcode = UncompressString(Data.data(), Data.size(), UncompressedData, UncompressedSize);
+ if (errorcode != Z_OK)
+ {
+ LOGERROR("Error %d decompressing data for chunk [%d, %d]",
+ errorcode,
+ Header->m_ChunkX, Header->m_ChunkZ
+ );
+ Offset += Header->m_CompressedSize;
+ continue;
+ }
+ }
+
+ if (UncompressedSize != (int)UncompressedData.size())
+ {
+ LOGWARNING("Uncompressed data size differs (exp %d bytes, got %d) for chunk [%d, %d]",
+ UncompressedSize, UncompressedData.size(),
+ Header->m_ChunkX, Header->m_ChunkZ
+ );
+ Offset += Header->m_CompressedSize;
+ continue;
+ }
+
+ char ConvertedData[ExpectedSize];
+ memset(ConvertedData, 0, ExpectedSize);
+
+ // Cannot use cChunk::MakeIndex because it might change again?????????
+ // For compatibility, use what we know is current
+ #define MAKE_2_INDEX( x, y, z ) ( y + (z * 256) + (x * 256 * 16) )
+ #define MAKE_3_INDEX( x, y, z ) ( x + (z * 16) + (y * 16 * 16) )
+
+ unsigned int InChunkOffset = 0;
+ for( int x = 0; x < 16; ++x ) for( int z = 0; z < 16; ++z ) for( int y = 0; y < 256; ++y ) // YZX Loop order is important, in 1.1 Y was first then Z then X
+ {
+ ConvertedData[ MAKE_3_INDEX(x, y, z) ] = UncompressedData[InChunkOffset];
+ ++InChunkOffset;
+ } // for y, z, x
+
+
+ unsigned int index2 = 0;
+ for( int x = 0; x < 16; ++x ) for( int z = 0; z < 16; ++z ) for( int y = 0; y < 256; ++y )
+ {
+ ConvertedData[ InChunkOffset + MAKE_3_INDEX(x, y, z)/2 ] |= ( (UncompressedData[ InChunkOffset + index2/2 ] >> ((index2&1)*4) ) & 0x0f ) << ((x&1)*4);
+ ++index2;
+ }
+ InChunkOffset += index2 / 2;
+ index2 = 0;
+
+ for( int x = 0; x < 16; ++x ) for( int z = 0; z < 16; ++z ) for( int y = 0; y < 256; ++y )
+ {
+ ConvertedData[ InChunkOffset + MAKE_3_INDEX(x, y, z)/2 ] |= ( (UncompressedData[ InChunkOffset + index2/2 ] >> ((index2&1)*4) ) & 0x0f ) << ((x&1)*4);
+ ++index2;
+ }
+ InChunkOffset += index2 / 2;
+ index2 = 0;
+
+ for( int x = 0; x < 16; ++x ) for( int z = 0; z < 16; ++z ) for( int y = 0; y < 256; ++y )
+ {
+ ConvertedData[ InChunkOffset + MAKE_3_INDEX(x, y, z)/2 ] |= ( (UncompressedData[ InChunkOffset + index2/2 ] >> ((index2&1)*4) ) & 0x0f ) << ((x&1)*4);
+ ++index2;
+ }
+ InChunkOffset += index2 / 2;
+ index2 = 0;
+
+ AString Converted(ConvertedData, ExpectedSize);
+
+ // Add JSON data afterwards
+ if (UncompressedData.size() > InChunkOffset)
+ {
+ Converted.append( UncompressedData.begin() + InChunkOffset, UncompressedData.end() );
+ }
+
+ // Re-compress data
+ AString CompressedData;
+ {
+ int errorcode = CompressString(Converted.data(), Converted.size(), CompressedData);
+ if (errorcode != Z_OK)
+ {
+ LOGERROR("Error %d compressing data for chunk [%d, %d]",
+ errorcode,
+ Header->m_ChunkX, Header->m_ChunkZ
+ );
+ continue;
+ }
+ }
+
+ // Save into file's cache
+ Header->m_UncompressedSize = Converted.size();
+ Header->m_CompressedSize = CompressedData.size();
+ NewDataContents.append( CompressedData );
+ }
+
+ // Done converting
+ m_DataContents = NewDataContents;
+ m_ChunkVersion = 3;
+ SynchronizeFile();
+
+ LOGINFO("Updated \"%s\" version 2 to version 3", m_FileName.c_str() );
+}
+
+
+
+
+
+bool cWSSCompact::LoadChunkFromData(const cChunkCoords & a_Chunk, int & a_UncompressedSize, const AString & a_Data, cWorld * a_World)
+{
+ // Crude data integrity check:
+ if (a_UncompressedSize < cChunkDef::BlockDataSize)
+ {
+ LOGWARNING("Chunk [%d, %d] has too short decompressed data (%d bytes out of %d needed), erasing",
+ a_Chunk.m_ChunkX, a_Chunk.m_ChunkZ,
+ a_UncompressedSize, cChunkDef::BlockDataSize
+ );
+ EraseChunkData(a_Chunk);
+ return false;
+ }
+
+ // Decompress the data:
+ AString UncompressedData;
+ int errorcode = UncompressString(a_Data.data(), a_Data.size(), UncompressedData, a_UncompressedSize);
+ if (errorcode != Z_OK)
+ {
+ LOGERROR("Error %d decompressing data for chunk [%d, %d]",
+ errorcode,
+ a_Chunk.m_ChunkX, a_Chunk.m_ChunkZ
+ );
+ return false;
+ }
+
+ if (a_UncompressedSize != (int)UncompressedData.size())
+ {
+ LOGWARNING("Uncompressed data size differs (exp %d bytes, got %d) for chunk [%d, %d]",
+ a_UncompressedSize, UncompressedData.size(),
+ a_Chunk.m_ChunkX, a_Chunk.m_ChunkZ
+ );
+ return false;
+ }
+
+ cEntityList Entities;
+ cBlockEntityList BlockEntities;
+ bool IsLightValid = false;
+
+ if (a_UncompressedSize > cChunkDef::BlockDataSize)
+ {
+ Json::Value root; // will contain the root value after parsing.
+ Json::Reader reader;
+ if ( !reader.parse( UncompressedData.data() + cChunkDef::BlockDataSize, root, false ) )
+ {
+ LOGERROR("Failed to parse trailing JSON in chunk [%d, %d]!",
+ a_Chunk.m_ChunkX, a_Chunk.m_ChunkZ
+ );
+ }
+ else
+ {
+ LoadEntitiesFromJson(root, Entities, BlockEntities, a_World);
+ IsLightValid = root.get("IsLightValid", false).asBool();
+ }
+ }
+
+ BLOCKTYPE * BlockData = (BLOCKTYPE *)UncompressedData.data();
+ NIBBLETYPE * MetaData = (NIBBLETYPE *)(BlockData + cChunkDef::MetaOffset);
+ NIBBLETYPE * BlockLight = (NIBBLETYPE *)(BlockData + cChunkDef::LightOffset);
+ NIBBLETYPE * SkyLight = (NIBBLETYPE *)(BlockData + cChunkDef::SkyLightOffset);
+
+ a_World->SetChunkData(
+ a_Chunk.m_ChunkX, a_Chunk.m_ChunkY, a_Chunk.m_ChunkZ,
+ BlockData, MetaData,
+ IsLightValid ? BlockLight : NULL,
+ IsLightValid ? SkyLight : NULL,
+ NULL, NULL,
+ Entities, BlockEntities,
+ false
+ );
+
+ return true;
+}
+
+
+
+
+
+bool cWSSCompact::cPAKFile::EraseChunkData(const cChunkCoords & a_Chunk)
+{
+ int ChunkX = a_Chunk.m_ChunkX;
+ int ChunkZ = a_Chunk.m_ChunkZ;
+ int Offset = 0;
+ for (sChunkHeaders::iterator itr = m_ChunkHeaders.begin(); itr != m_ChunkHeaders.end(); ++itr)
+ {
+ if (((*itr)->m_ChunkX == ChunkX) && ((*itr)->m_ChunkZ == ChunkZ))
+ {
+ m_DataContents.erase(Offset, (*itr)->m_CompressedSize);
+ delete *itr;
+ itr = m_ChunkHeaders.erase(itr);
+ return true;
+ }
+ Offset += (*itr)->m_CompressedSize;
+ }
+
+ return false;
+}
+
+
+
+
+
+bool cWSSCompact::cPAKFile::SaveChunkToData(const cChunkCoords & a_Chunk, cWorld * a_World)
+{
+ // Serialize the chunk:
+ cJsonChunkSerializer Serializer;
+ if (!a_World->GetChunkData(a_Chunk.m_ChunkX, a_Chunk.m_ChunkY, a_Chunk.m_ChunkZ, Serializer))
+ {
+ // Chunk not valid
+ LOG("cWSSCompact: Trying to save chunk [%d, %d, %d] that has no data, ignoring request.", a_Chunk.m_ChunkX, a_Chunk.m_ChunkY, a_Chunk.m_ChunkZ);
+ return false;
+ }
+
+ AString Data;
+ Data.assign((const char *)Serializer.GetBlockData(), cChunkDef::BlockDataSize);
+ if (Serializer.HasJsonData())
+ {
+ AString JsonData;
+ Json::StyledWriter writer;
+ JsonData = writer.write(Serializer.GetRoot());
+ Data.append(JsonData);
+ }
+
+ // Compress the data:
+ AString CompressedData;
+ int errorcode = CompressString(Data.data(), Data.size(), CompressedData);
+ if ( errorcode != Z_OK )
+ {
+ LOGERROR("Error %i compressing data for chunk [%d, %d, %d]", errorcode, a_Chunk.m_ChunkX, a_Chunk.m_ChunkY, a_Chunk.m_ChunkZ);
+ return false;
+ }
+
+ // Erase any existing data for the chunk:
+ EraseChunkData(a_Chunk);
+
+ // Save the header:
+ sChunkHeader * Header = new sChunkHeader;
+ if (Header == NULL)
+ {
+ LOGWARNING("Cannot create a new chunk header to save chunk [%d, %d, %d]", a_Chunk.m_ChunkX, a_Chunk.m_ChunkY, a_Chunk.m_ChunkZ);
+ return false;
+ }
+ Header->m_CompressedSize = (int)CompressedData.size();
+ Header->m_ChunkX = a_Chunk.m_ChunkX;
+ Header->m_ChunkZ = a_Chunk.m_ChunkZ;
+ Header->m_UncompressedSize = (int)Data.size();
+ m_ChunkHeaders.push_back(Header);
+
+ m_DataContents.append(CompressedData.data(), CompressedData.size());
+
+ m_NumDirty++;
+ return true;
+}
+
+
+
+
+
+#define WRITE(Var) \
+ if (f.Write(&Var, sizeof(Var)) != sizeof(Var)) \
+ { \
+ LOGERROR("cWSSCompact: ERROR writing %s to file \"%s\" (line %d); file offset %d", #Var, m_FileName.c_str(), __LINE__, f.Tell()); \
+ return; \
+ }
+
+void cWSSCompact::cPAKFile::SynchronizeFile(void)
+{
+ cFile f;
+ if (!f.Open(m_FileName, cFile::fmWrite))
+ {
+ LOGERROR("Cannot open PAK file \"%s\" for writing", m_FileName.c_str());
+ return;
+ }
+
+ WRITE(m_PakVersion);
+ WRITE(m_ChunkVersion);
+ short NumChunks = (short)m_ChunkHeaders.size();
+ WRITE(NumChunks);
+ for (sChunkHeaders::iterator itr = m_ChunkHeaders.begin(); itr != m_ChunkHeaders.end(); ++itr)
+ {
+ WRITE(**itr);
+ }
+ if (f.Write(m_DataContents.data(), m_DataContents.size()) != (int)m_DataContents.size())
+ {
+ LOGERROR("cWSSCompact: ERROR writing chunk contents to file \"%s\" (line %d); file offset %d", m_FileName.c_str(), __LINE__, f.Tell());
+ return;
+ }
+ m_NumDirty = 0;
+}
+
+
+
+