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| author | madmaxoft@gmail.com <madmaxoft@gmail.com@0a769ca7-a7f5-676a-18bf-c427514a06d6> | 2013-02-25 20:06:37 +0100 |
|---|---|---|
| committer | madmaxoft@gmail.com <madmaxoft@gmail.com@0a769ca7-a7f5-676a-18bf-c427514a06d6> | 2013-02-25 20:06:37 +0100 |
| commit | 24d3d5dac40562f22a43eb9934c90165ace92a35 (patch) | |
| tree | 43f641312f850d0123f0d86a6a685f4e5ac6ffc9 /AnvilStats/ChunkExtract.cpp | |
| parent | Moved the Speed member into cEntity class instead of its descendants. (diff) | |
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Diffstat (limited to '')
| -rw-r--r-- | AnvilStats/ChunkExtract.cpp | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/AnvilStats/ChunkExtract.cpp b/AnvilStats/ChunkExtract.cpp new file mode 100644 index 000000000..30bdda9f3 --- /dev/null +++ b/AnvilStats/ChunkExtract.cpp @@ -0,0 +1,104 @@ +
+// ChunkExtract.cpp
+
+// Implements the cChunkExtract class representing a cCallback descendant that extracts raw chunk data into separate .chunk files
+
+#include "Globals.h"
+#include "ChunkExtract.h"
+#include "../source/OSSupport/GZipFile.h"
+
+
+
+
+
+cChunkExtract::cChunkExtract(const AString & iWorldFolder) :
+ mWorldFolder(iWorldFolder)
+{
+}
+
+
+
+
+
+bool cChunkExtract::OnNewChunk(int a_ChunkX, int a_ChunkZ)
+{
+ int AnvilX = (a_ChunkX - ((a_ChunkX > 0) ? 0 : 31)) / 32;
+ int AnvilZ = (a_ChunkZ - ((a_ChunkZ > 0) ? 0 : 31)) / 32;
+ if ((AnvilX != mCurAnvilX) || (AnvilZ != mCurAnvilZ))
+ {
+ OpenAnvilFile(AnvilX, AnvilZ);
+ }
+ mCurChunkX = a_ChunkX;
+ mCurChunkZ = a_ChunkZ;
+ return false;
+}
+
+
+
+
+
+bool cChunkExtract::OnCompressedDataSizePos(int a_CompressedDataSize, int a_DataOffset, char a_CompressionMethod)
+{
+ if (!mAnvilFile.IsOpen())
+ {
+ return true;
+ }
+ cFile ChunkFile;
+ AString ChunkPath = Printf("%d.%d.zchunk", mCurChunkX, mCurChunkZ);
+ if (!ChunkFile.Open(ChunkPath, cFile::fmWrite))
+ {
+ LOG("Cannot open zchunk file \"%s\" for writing. Chunk [%d, %d] skipped.", ChunkPath.c_str(), mCurChunkX, mCurChunkZ);
+ return false;
+ }
+
+ // Copy data from mAnvilFile to ChunkFile:
+ mAnvilFile.Seek(a_DataOffset);
+ for (int BytesToCopy = a_CompressedDataSize; BytesToCopy > 0; )
+ {
+ char Buffer[64000];
+ int NumBytes = std::min(BytesToCopy, (int)sizeof(Buffer));
+ int BytesRead = mAnvilFile.Read(Buffer, NumBytes);
+ if (BytesRead != NumBytes)
+ {
+ LOG("Cannot copy chunk data, chunk [%d, %d] is probably corrupted. Skipping chunk.", mCurChunkX, mCurChunkZ);
+ return false;
+ }
+ ChunkFile.Write(Buffer, BytesRead);
+ BytesToCopy -= BytesRead;
+ } // for BytesToCopy
+ return false;
+}
+
+
+
+
+
+bool cChunkExtract::OnDecompressedData(const char * a_DecompressedNBT, int a_DataSize)
+{
+ ASSERT(mAnvilFile.IsOpen()); // If it weren't, the OnCompressedDataSizePos would've prevented this from running
+ AString FileName = Printf("%d.%d.gzchunk", mCurChunkX, mCurChunkZ);
+ cGZipFile GZipChunk;
+ if (!GZipChunk.Open(FileName, cGZipFile::fmWrite))
+ {
+ LOG("Cannot open gzchunk file \"%s\" for writing. Chunk [%d, %d] skipped.", FileName.c_str(), mCurChunkX, mCurChunkZ);
+ return true;
+ }
+ GZipChunk.Write(a_DecompressedNBT, a_DataSize);
+ return true;
+}
+
+
+
+
+
+void cChunkExtract::OpenAnvilFile(int a_AnvilX, int a_AnvilZ)
+{
+ mAnvilFile.Close();
+ AString FileName = Printf("%s/r.%d.%d.mca", mWorldFolder.c_str(), a_AnvilX, a_AnvilZ);
+ if (!mAnvilFile.Open(FileName, cFile::fmRead))
+ {
+ LOG("Cannot open Anvil file \"%s\" for reading", FileName.c_str());
+ }
+ mCurAnvilX = a_AnvilX;
+ mCurAnvilZ = a_AnvilZ;
+}
\ No newline at end of file |