diff options
Diffstat (limited to 'src/database-dummy.cpp')
| -rw-r--r-- | src/database-dummy.cpp | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/src/database-dummy.cpp b/src/database-dummy.cpp new file mode 100644 index 000000000..c54ff0bce --- /dev/null +++ b/src/database-dummy.cpp @@ -0,0 +1,155 @@ +/* +Dummy "database" class +*/ + + +#include "map.h" +#include "mapsector.h" +#include "mapblock.h" +#include "main.h" +#include "filesys.h" +#include "voxel.h" +#include "porting.h" +#include "mapgen.h" +#include "nodemetadata.h" +#include "settings.h" +#include "log.h" +#include "profiler.h" +#include "nodedef.h" +#include "gamedef.h" +#include "util/directiontables.h" +#include "rollback_interface.h" + +#include "database-dummy.h" + +Database_Dummy::Database_Dummy(ServerMap *map) +{ + srvmap = map; +} + +int Database_Dummy::Initialized(void) +{ + return 1; +} + +void Database_Dummy::beginSave() {} +void Database_Dummy::endSave() {} + +void Database_Dummy::saveBlock(MapBlock *block) +{ + DSTACK(__FUNCTION_NAME); + /* + Dummy blocks are not written + */ + if(block->isDummy()) + { + return; + } + + // Format used for writing + u8 version = SER_FMT_VER_HIGHEST; + // Get destination + v3s16 p3d = block->getPos(); + + /* + [0] u8 serialization version + [1] data + */ + + std::ostringstream o(std::ios_base::binary); + o.write((char*)&version, 1); + // Write basic data + block->serialize(o, version, true); + // Write block to database + std::string tmp = o.str(); + + m_database[getBlockAsInteger(p3d)] = tmp; + // We just wrote it to the disk so clear modified flag + block->resetModified(); +} + +MapBlock* Database_Dummy::loadBlock(v3s16 blockpos) +{ + v2s16 p2d(blockpos.X, blockpos.Z); + + if(m_database.count(getBlockAsInteger(blockpos))) { + /* + Make sure sector is loaded + */ + MapSector *sector = srvmap->createSector(p2d); + /* + Load block + */ + std::string datastr = m_database[getBlockAsInteger(blockpos)]; +// srvmap->loadBlock(&datastr, blockpos, sector, false); + + try { + std::istringstream is(datastr, std::ios_base::binary); + u8 version = SER_FMT_VER_INVALID; + is.read((char*)&version, 1); + + if(is.fail()) + throw SerializationError("ServerMap::loadBlock(): Failed" + " to read MapBlock version"); + + MapBlock *block = NULL; + bool created_new = false; + block = sector->getBlockNoCreateNoEx(blockpos.Y); + if(block == NULL) + { + block = sector->createBlankBlockNoInsert(blockpos.Y); + created_new = true; + } + // Read basic data + block->deSerialize(is, version, true); + // If it's a new block, insert it to the map + if(created_new) + sector->insertBlock(block); + /* + Save blocks loaded in old format in new format + */ + + //if(version < SER_FMT_VER_HIGHEST || save_after_load) + // Only save if asked to; no need to update version + //if(save_after_load) + // saveBlock(block); + // We just loaded it from, so it's up-to-date. + block->resetModified(); + + } + catch(SerializationError &e) + { + errorstream<<"Invalid block data in database" + <<" ("<<blockpos.X<<","<<blockpos.Y<<","<<blockpos.Z<<")" + <<" (SerializationError): "<<e.what()<<std::endl; + // TODO: Block should be marked as invalid in memory so that it is + // not touched but the game can run + + if(g_settings->getBool("ignore_world_load_errors")){ + errorstream<<"Ignoring block load error. Duck and cover! " + <<"(ignore_world_load_errors)"<<std::endl; + } else { + throw SerializationError("Invalid block data in database"); + //assert(0); + } + } + + return srvmap->getBlockNoCreateNoEx(blockpos); // should not be using this here + } + return(NULL); +} + +void Database_Dummy::listAllLoadableBlocks(core::list<v3s16> &dst) +{ + for(std::map<unsigned long long, std::string>::iterator x = m_database.begin(); x != m_database.end(); ++x) + { + v3s16 p = getIntegerAsBlock(x->first); + //dstream<<"block_i="<<block_i<<" p="<<PP(p)<<std::endl; + dst.push_back(p); + } +} + +Database_Dummy::~Database_Dummy() +{ + m_database.clear(); +} |