Common::Error Saver::save(int slot, const Common::String &saveName) {
assert(!getMacroRestoreFlag());
Common::StackLock slock1(g_globals->_soundManager._serverDisabledMutex);
// Signal any objects registered for notification
_saveNotifiers.notify(false);
// Set fields
_macroSaveFlag = true;
_saveSlot = slot;
// Try and create the save file
Common::OutSaveFile *saveFile = g_system->getSavefileManager()->openForSaving(g_vm->generateSaveName(slot));
if (!saveFile)
return Common::kCreatingFileFailed;
// Set up the serializer
Serializer serializer(NULL, saveFile);
serializer.setSaveVersion(TSAGE_SAVEGAME_VERSION);
// Write out the savegame header
tSageSavegameHeader header;
header.saveName = saveName;
header.version = TSAGE_SAVEGAME_VERSION;
writeSavegameHeader(saveFile, header);
// Save out objects that need to come at the start of the savegame
for (SynchronizedList<SaveListener *>::iterator i = _listeners.begin(); i != _listeners.end(); ++i) {
(*i)->listenerSynchronize(serializer);
}
// Save each registered SaveObject descendant object into the savegame file
for (SynchronizedList<SavedObject *>::iterator i = _objList.begin(); i != _objList.end(); ++i) {
SavedObject *so = *i;
serializer.validate(so->getClassName());
so->synchronize(serializer);
}
// Save file complete
saveFile->writeString("END");
saveFile->finalize();
delete saveFile;
// Final post-save notification
_macroSaveFlag = false;
_saveNotifiers.notify(true);
return Common::kNoError;
}
Common::Error Saver::restore(int slot) {
assert(!getMacroRestoreFlag());
Common::StackLock slock1(g_globals->_soundManager._serverDisabledMutex);
// Signal any objects registered for notification
_loadNotifiers.notify(false);
// Set fields
_macroRestoreFlag = true;
_unresolvedPtrs.clear();
// Set up the serializer
Common::InSaveFile *saveFile = g_system->getSavefileManager()->openForLoading(g_vm->generateSaveName(slot));
if (!saveFile)
return Common::kReadingFailed;
Serializer serializer(saveFile, NULL);
// Read in the savegame header
tSageSavegameHeader header;
readSavegameHeader(saveFile, header);
if (header.thumbnail)
header.thumbnail->free();
delete header.thumbnail;
serializer.setSaveVersion(header.version);
// Load in data for objects that need to come at the start of the savegame
for (Common::List<SaveListener *>::iterator i = _listeners.begin(); i != _listeners.end(); ++i) {
(*i)->listenerSynchronize(serializer);
}
// Loop through each registered object to load in the data
for (SynchronizedList<SavedObject *>::iterator i = _objList.begin(); i != _objList.end(); ++i) {
serializer.validate((*i)->getClassName());
(*i)->synchronize(serializer);
}
// Loop through the remaining data of the file, instantiating new objects.
// Note: I don't store pointers to instantiated objects here, because it's not necessary - the mere act
// of instantiating a saved object registers it with the saver, and will then be resolved to whatever
// object originally had a pointer to it as part of the post-processing step
Common::String className;
serializer.syncString(className);
while (className != "END") {
SavedObject *savedObject;
if (!_factoryPtr || ((savedObject = _factoryPtr(className)) == NULL))
error("Unknown class name '%s' encountered trying to restore savegame", className.c_str());
// Populate the contents of the object
savedObject->synchronize(serializer);
// Move to next object
serializer.syncString(className);
}
// Post-process any unresolved pointers to get the correct pointer
resolveLoadPointers();
delete saveFile;
// Final post-restore notifications
_macroRestoreFlag = false;
_loadNotifiers.notify(true);
return Common::kNoError;
}
