void CMapDiffCollection::LoadMapDiffs()
{
// Load mapdif* and stadif* Files
ADDTOCALLSTACK("CMapDiffCollection::LoadMapDiffs");
if ( m_bLoaded ) // already loaded
return;
DWORD dwLength = 0, dwBlockId = 0;
DWORD dwOffset = 0, dwRead = 0;
CMapDiffBlock * pMapDiffBlock = NULL;
for ( int m = 0; m < 256; ++m )
{
if ( !g_MapList.IsMapSupported( m ) )
continue;
int map = g_MapList.m_mapid[m];
// Load Mapdif Files
{
CGFile * pFileMapdif = &(g_Install.m_Mapdif[map]);
CGFile * pFileMapdifl = &(g_Install.m_Mapdifl[map]);
// Check that the relevant dif files are available
if ( pFileMapdif->IsFileOpen() && pFileMapdifl->IsFileOpen() )
{
// Make sure that we're at the beginning of the files
pFileMapdif->SeekToBegin();
pFileMapdifl->SeekToBegin();
dwLength = pFileMapdifl->GetLength();
dwRead = dwOffset = 0;
for ( ; dwRead < dwLength; dwOffset += sizeof(CUOMapBlock) )
{
dwRead += pFileMapdifl->Read( &dwBlockId, sizeof(dwBlockId) );
pMapDiffBlock = GetNewBlock( dwBlockId, map );
if ( pMapDiffBlock->m_pTerrainBlock )
delete pMapDiffBlock->m_pTerrainBlock;
CUOMapBlock * pTerrain = new CUOMapBlock();
if ( pFileMapdif->Seek( dwOffset ) != dwOffset )
{
g_Log.EventError("Reading mapdif%d.mul FAILED.\n", map);
delete pTerrain;
break;
}
else if ( pFileMapdif->Read( pTerrain, sizeof(CUOMapBlock) ) != sizeof(CUOMapBlock) )
{
g_Log.EventError("Reading mapdif%d.mul FAILED. [index=%lu offset=%lu]\n", map, dwBlockId, dwOffset);
delete pTerrain;
break;
}
pMapDiffBlock->m_pTerrainBlock = pTerrain;
}
}
} // Mapdif
// Load Stadif Files
{
CGFile * pFileStadif = &(g_Install.m_Stadif[map]);
CGFile * pFileStadifl = &(g_Install.m_Stadifl[map]);
CGFile * pFileStadifi = &(g_Install.m_Stadifi[map]);
// Check that the relevant dif files are available
if ( !pFileStadif->IsFileOpen() || !pFileStadifl->IsFileOpen() || !pFileStadifi->IsFileOpen() )
continue;
// Make sure that we're at the beginning of the files
pFileStadif->SeekToBegin();
pFileStadifl->SeekToBegin();
pFileStadifi->SeekToBegin();
dwLength = pFileStadifl->GetLength();
dwRead = dwOffset = 0;
for ( ; dwRead < dwLength; dwOffset += sizeof(CUOIndexRec) )
{
dwRead += pFileStadifl->Read( &dwBlockId, sizeof(dwBlockId) );
pMapDiffBlock = GetNewBlock( dwBlockId, map );
if ( pMapDiffBlock->m_pStaticsBlock )
delete[] pMapDiffBlock->m_pStaticsBlock;
pMapDiffBlock->m_iStaticsCount = 0;
pMapDiffBlock->m_pStaticsBlock = NULL;
if ( pFileStadifi->Seek( dwOffset ) != dwOffset )
{
g_Log.EventError("Reading stadifi%d.mul FAILED.\n", map);
break;
}
CUOIndexRec index;
if ( pFileStadifi->Read( &index, sizeof(CUOIndexRec)) != sizeof(CUOIndexRec) )
{
g_Log.EventError("Reading stadifi%d.mul FAILED. [index=%lu offset=%lu]\n", map, dwBlockId, dwOffset);
break;
}
else if ( !index.HasData() ) // This happens if the block has been intentionally patched to remove statics
{
continue;
}
else if ((index.GetBlockLength() % sizeof(CUOStaticItemRec)) != 0) // Make sure that the statics block length is valid
{
g_Log.EventError("Reading stadifi%d.mul FAILED. [index=%lu offset=%lu length=%lu]\n", map, dwBlockId, dwOffset, index.GetBlockLength());
break;
}
pMapDiffBlock->m_iStaticsCount = index.GetBlockLength()/sizeof(CUOStaticItemRec);
pMapDiffBlock->m_pStaticsBlock = new CUOStaticItemRec[pMapDiffBlock->m_iStaticsCount];
if ( !g_Install.ReadMulData(*pFileStadif, index, pMapDiffBlock->m_pStaticsBlock) )
{
// This shouldn't happen, if this fails then the block will
// be left with no statics
pMapDiffBlock->m_iStaticsCount = 0;
delete[] pMapDiffBlock->m_pStaticsBlock;
pMapDiffBlock->m_pStaticsBlock = NULL;
g_Log.EventError("Reading stadif%d.mul FAILED. [index=%lu offset=%lu]\n", map, dwBlockId, dwOffset);
break;
}
}
} // Stadif
}
m_bLoaded = true;
}
