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#include "Globals.h" // NOTE: MSVC stupidness requires this to be the same across all modules
#include "cPacket_MapChunk.h"
#include "../cChunk.h"
#include "zlib.h"
cPacket_MapChunk::~cPacket_MapChunk()
{
delete [] m_CompressedData;
}
cPacket_MapChunk::cPacket_MapChunk(int a_ChunkX, int a_ChunkY, int a_ChunkZ, char * a_BlockData)
{
m_PacketID = E_MAP_CHUNK;
#if (MINECRAFT_1_2_2 == 1 )
// ...
m_PosX = a_ChunkX; // Chunk coordinates now, instead of block coordinates
m_PosZ = a_ChunkZ;
m_bContiguous = false;
m_BitMap1 = 0;
m_BitMap2 = 0;
m_UnusedInt = 0;
unsigned int DataSize = (cChunk::c_ChunkHeight / 16) * (4096 + 2048 + 2048 + 2048);
std::auto_ptr<char> AllData(new char[ DataSize ]);
#if AXIS_ORDER == AXIS_ORDER_YZX
memset( AllData.get(), 0, DataSize );
unsigned int iterator = 0;
for ( int i = 0; i < (cChunk::c_ChunkHeight / 16); ++i )
{
m_BitMap1 |= (1 << i); // This tells what chunks are sent. Use this to NOT send air only chunks (right now everything is sent)
for ( int y = 0; y < 16; ++y ) for( int z = 0; z < 16; ++z ) for( int x = 0; x < 16; ++x )
{
int idx = cChunk::MakeIndex(x, y + i * 16, z);
AllData.get()[iterator] = a_BlockData[idx];
++iterator;
} // for y, z, x
}
// Send block metadata:
char * Meta = a_BlockData + cChunk::c_NumBlocks;
for ( int i = 0; i < (cChunk::c_ChunkHeight / 16); ++i )
{
for ( int y = 0; y < 16; ++y ) for( int z = 0; z < 16; ++z )
{
for ( int x = 0; x < 8; ++x )
{
AllData.get()[iterator] = cChunk::GetNibble(Meta, x * 2 + 0, y + i * 16, z) | (cChunk::GetNibble(Meta, x * 2 + 1, y + i * 16, z ) << 4);
++iterator;
} // for x
} // for y, z
}
// Send block light:
char * Light = Meta + cChunk::c_NumBlocks / 2;
for ( int i = 0; i < (cChunk::c_ChunkHeight / 16); ++i )
{
for ( int y = 0; y < 16; ++y ) for( int z = 0; z < 16; ++z )
{
for ( int x = 0; x < 8; ++x )
{
AllData.get()[iterator] = cChunk::GetNibble(Light, x * 2 + 0, y + i * 16, z ) | (cChunk::GetNibble(Light, x * 2 + 1, y + i * 16, z ) << 4);
++iterator;
}
}
}
// Send sky light:
char * SkyLight = Light + cChunk::c_NumBlocks / 2;
for( int i = 0; i < (cChunk::c_ChunkHeight/16); ++i )
{
for( int y = 0; y < 16; ++y ) for( int z = 0; z < 16; ++z )
{
for( int x = 0; x < 8; ++x )
{
AllData.get()[iterator] = cChunk::GetNibble(SkyLight, x * 2 + 0, y + i * 16, z ) | (cChunk::GetNibble(SkyLight, x * 2 + 1, y + i * 16, z ) << 4);
++iterator;
}
}
}
#else if AXIS_ORDER == AXIS_ORDER_XZY
for ( int i = 0; i < 16; ++i )
{
m_BitMap1 |= (1 << i);
}
memcpy( AllData.get(), a_BlockData, DataSize );
#endif
uLongf CompressedSize = compressBound( DataSize );
char * CompressedBlockData = new char[CompressedSize];
compress2( (Bytef*)CompressedBlockData, &CompressedSize, (const Bytef*)AllData.get(), DataSize, Z_DEFAULT_COMPRESSION);
m_CompressedData = CompressedBlockData;
m_CompressedSize = CompressedSize;
#else
m_PosX = a_ChunkX * cChunk::c_ChunkWidth; // It has to be block coordinates
m_PosY = (short)(a_ChunkY * cChunk::c_ChunkHeight);
m_PosZ = a_ChunkZ * cChunk::c_ChunkWidth;
m_SizeX = 15;
m_SizeY = 127;
m_SizeZ = 15;
uLongf CompressedSize = compressBound( cChunk::c_BlockDataSize );
char * CompressedBlockData = new char[CompressedSize];
compress2( (Bytef*)CompressedBlockData, &CompressedSize, (const Bytef*)a_BlockData, cChunk::c_BlockDataSize, Z_DEFAULT_COMPRESSION);
m_CompressedData = CompressedBlockData;
m_CompressedSize = CompressedSize;
#endif
}
cPacket_MapChunk::cPacket_MapChunk( const cPacket_MapChunk & a_Copy )
{
m_PacketID = E_MAP_CHUNK;
#if (MINECRAFT_1_2_2 == 1 )
m_PosX = a_Copy.m_PosX;
m_PosZ = a_Copy.m_PosZ;
m_bContiguous = a_Copy.m_bContiguous;
m_BitMap1 = a_Copy.m_BitMap1;
m_BitMap2 = a_Copy.m_BitMap2;
m_CompressedSize = a_Copy.m_CompressedSize;
m_CompressedData = new char[m_CompressedSize];
memcpy( m_CompressedData, a_Copy.m_CompressedData, m_CompressedSize );
#else
m_PosX = a_Copy.m_PosX;
m_PosY = a_Copy.m_PosY;
m_PosZ = a_Copy.m_PosZ;
m_SizeX = a_Copy.m_SizeX;
m_SizeY = a_Copy.m_SizeY;
m_SizeZ = a_Copy.m_SizeZ;
m_CompressedSize = a_Copy.m_CompressedSize;
m_CompressedData = new char[m_CompressedSize];
memcpy( m_CompressedData, a_Copy.m_CompressedData, m_CompressedSize );
#endif
}
void cPacket_MapChunk::Serialize(AString & a_Data) const
{
LOG("Sending chunk [%i, %i]", m_PosX, m_PosZ );
AppendByte (a_Data, m_PacketID);
#if (MINECRAFT_1_2_2 == 1 )
AppendInteger(a_Data, m_PosX);
AppendInteger(a_Data, m_PosZ);
AppendBool (a_Data, m_bContiguous);
AppendShort (a_Data, m_BitMap1);
AppendShort (a_Data, m_BitMap2);
AppendInteger(a_Data, m_CompressedSize);
AppendInteger(a_Data, m_UnusedInt);
AppendData (a_Data, m_CompressedData, m_CompressedSize);
#else
AppendInteger(a_Data, m_PosX);
AppendShort (a_Data, m_PosY);
AppendInteger(a_Data, m_PosZ);
AppendByte (a_Data, m_SizeX);
AppendByte (a_Data, m_SizeY);
AppendByte (a_Data, m_SizeZ);
AppendInteger(a_Data, m_CompressedSize);
AppendData (a_Data, m_CompressedData, m_CompressedSize);
#endif
}
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