#include "Globals.h" // NOTE: MSVC stupidness requires this to be the same across all modules
#include "cPacket_MapChunk.h"
#include "../ChunkDef.h"
#include "zlib.h"
cPacket_MapChunk::~cPacket_MapChunk()
{
delete [] m_CompressedData;
}
cPacket_MapChunk::cPacket_MapChunk(int a_ChunkX, int a_ChunkY, int a_ChunkZ, const BLOCKTYPE * a_BlockData, const unsigned char * a_BiomeData)
{
m_PacketID = E_MAP_CHUNK;
m_PosX = a_ChunkX; // Chunk coordinates now, instead of block coordinates
m_PosZ = a_ChunkZ;
m_bContiguous = true; // false = no biome data, true = with biome data
m_BitMap1 = 0;
m_BitMap2 = 0;
m_UnusedInt = 0;
const int BlockDataSize = (cChunkDef::Height / 16) * (4096 + 2048 + 2048 + 2048);
const int BiomeDataSize = cChunkDef::Width * cChunkDef::Width;
char AllData [ BlockDataSize + BiomeDataSize ];
#if AXIS_ORDER == AXIS_ORDER_YZX
memset( AllData, 0, BlockDataSize );
unsigned int iterator = 0;
for ( int i = 0; i < (cChunkDef::Height / 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[iterator] = a_BlockData[idx];
++iterator;
} // for y, z, x
}
// Send block metadata:
char * Meta = a_BlockData + cChunkDef::NumBlocks;
for ( int i = 0; i < (cChunkDef::Height / 16); ++i )
{
for ( int y = 0; y < 16; ++y ) for( int z = 0; z < 16; ++z )
{
for ( int x = 0; x < 8; ++x )
{
AllData[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 + cChunkDef::NumBlocks / 2;
for ( int i = 0; i < (cChunkDef::Height / 16); ++i )
{
for ( int y = 0; y < 16; ++y ) for( int z = 0; z < 16; ++z )
{
for ( int x = 0; x < 8; ++x )
{
AllData[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 + cChunkDef::NumBlocks / 2;
for( int i = 0; i < (cChunkDef::Height/16); ++i )
{
for( int y = 0; y < 16; ++y ) for( int z = 0; z < 16; ++z )
{
for( int x = 0; x < 8; ++x )
{
AllData[iterator] = cChunk::GetNibble(SkyLight, x * 2 + 0, y + i * 16, z ) | (cChunk::GetNibble(SkyLight, x * 2 + 1, y + i * 16, z ) << 4);
++iterator;
}
}
}
memcpy(AllData + BlockDataSize, a_BiomeData, BiomeDataSize);
#elif AXIS_ORDER == AXIS_ORDER_XZY
for ( int i = 0; i < 16; ++i )
{
m_BitMap1 |= (1 << i);
}
memcpy(AllData, a_BlockData, BlockDataSize);
memcpy(AllData + BlockDataSize, a_BiomeData, BiomeDataSize);
#endif // AXIS_ORDER
uLongf CompressedSize = compressBound( sizeof(AllData) );
char * CompressedBlockData = new char[CompressedSize];
compress2( (Bytef*)CompressedBlockData, &CompressedSize, (const Bytef*)AllData, sizeof(AllData), Z_DEFAULT_COMPRESSION);
m_CompressedData = CompressedBlockData;
m_CompressedSize = CompressedSize;
}
cPacket_MapChunk::cPacket_MapChunk( const cPacket_MapChunk & a_Copy )
{
m_PacketID = E_MAP_CHUNK;
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 );
}
void cPacket_MapChunk::Serialize(AString & a_Data) const
{
AppendByte (a_Data, m_PacketID);
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);
}
