From 07fba5c98ec94f98b742e8aa76dcec5572bfcecb Mon Sep 17 00:00:00 2001 From: Howaner Date: Thu, 4 Sep 2014 03:22:35 +0200 Subject: Added more 1.8 protocol things. --- src/Protocol/ChunkDataSerializer.cpp | 64 ++++++++++++++++++++++++++++++++++++ 1 file changed, 64 insertions(+) (limited to 'src/Protocol/ChunkDataSerializer.cpp') diff --git a/src/Protocol/ChunkDataSerializer.cpp b/src/Protocol/ChunkDataSerializer.cpp index ebe61631b..9eadc4f0b 100644 --- a/src/Protocol/ChunkDataSerializer.cpp +++ b/src/Protocol/ChunkDataSerializer.cpp @@ -43,6 +43,7 @@ const AString & cChunkDataSerializer::Serialize(int a_Version) { case RELEASE_1_2_5: Serialize29(data); break; case RELEASE_1_3_2: Serialize39(data); break; + case RELEASE_1_8_0: Serialize80(data); break; // TODO: Other protocol versions may serialize the data differently; implement here default: @@ -174,3 +175,66 @@ void cChunkDataSerializer::Serialize39(AString & a_Data) + +void cChunkDataSerializer::Serialize80(AString & a_Data) +{ + // TODO: Do not copy data and then compress it; rather, compress partial blocks of data (zlib *can* stream) + + // Blocktypes converter (1.8 included the meta into the blocktype): + unsigned short Blocks[ARRAYCOUNT(m_BlockTypes)]; + for (int RelX = 0; RelX < cChunkDef::Width; RelX++) + { + for (int RelZ = 0; RelZ < cChunkDef::Width; RelZ++) + { + for (int RelY = 0; RelY < cChunkDef::Height; RelY++) + { + int Index = cChunkDef::MakeIndexNoCheck(RelX, RelY, RelZ); + BLOCKTYPE BlockType = m_BlockTypes[Index]; + NIBBLETYPE BlockMeta = m_BlockMetas[Index / 2] >> ((Index & 1) * 4) & 0x0f; + + Blocks[Index] = ((unsigned short)BlockType << 4) | ((unsigned short)BlockMeta & 15); + } + } + } + + const int BiomeDataSize = cChunkDef::Width * cChunkDef::Width; + const int BlockLightOffset = sizeof(Blocks); + const int SkyLightOffset = BlockLightOffset + sizeof(m_BlockLight); + const int BiomeOffset = SkyLightOffset + sizeof(m_BlockSkyLight); + const int DataSize = BiomeOffset + BiomeDataSize; + + // Temporary buffer for the composed data: + char AllData [DataSize]; + memcpy(AllData, Blocks, sizeof(Blocks)); + memcpy(AllData + BlockLightOffset, m_BlockLight, sizeof(m_BlockLight)); + memcpy(AllData + SkyLightOffset, m_BlockSkyLight, sizeof(m_BlockSkyLight)); + memcpy(AllData + BiomeOffset, m_BiomeData, BiomeDataSize); + + // Put all those data into a_Data: + a_Data.push_back('\x01'); // "Ground-up continuous", or rather, "biome data present" flag + + // Two bitmaps; we're aways sending the full chunk with no additional data, so the bitmaps are 0xffff and 0, respectively + // Also, no endian flipping is needed because of the const values + unsigned short BitMap = 0xffff; + a_Data.append((const char *)&BitMap, sizeof(short)); + + // Write chunk size: + UInt32 ChunkSize = htonl((UInt32)DataSize); + + unsigned char b[5]; // // A 32-bit integer can be encoded by at most 5 bytes + size_t idx = 0; + UInt32 Value = ChunkSize; + do + { + b[idx] = (Value & 0x7f) | ((Value > 0x7f) ? 0x80 : 0x00); + Value = Value >> 7; + idx++; + } while (Value > 0); + a_Data.append((const char *)b, idx); + + a_Data.append(AllData, ChunkSize); // Chunk data +} + + + + -- cgit v1.2.3