C++ InSaveFile::eos方法代码示例

Common::HashMap<Common::String, uint32> DefaultSaveFileManager::loadTimestamps() {
	Common::HashMap<Common::String, uint32> timestamps;

	//refresh the files list
	Common::Array<Common::String> files;
	g_system->getSavefileManager()->updateSavefilesList(files);

	//start with listing all the files in saves/ directory and setting invalid timestamp to them
	Common::StringArray localFiles = g_system->getSavefileManager()->listSavefiles("*");
	for (uint32 i = 0; i < localFiles.size(); ++i)
		timestamps[localFiles[i]] = INVALID_TIMESTAMP;

	//now actually load timestamps from file
	Common::InSaveFile *file = g_system->getSavefileManager()->openRawFile(TIMESTAMPS_FILENAME);
	if (!file) {
		warning("DefaultSaveFileManager: failed to open '%s' file to load timestamps", TIMESTAMPS_FILENAME);
		return timestamps;
	}

	while (!file->eos()) {
		//read filename into buffer (reading until the first ' ')
		Common::String buffer;
		while (!file->eos()) {
			byte b = file->readByte();
			if (b == ' ') break;
			buffer += (char)b;
		}

		//read timestamp info buffer (reading until ' ' or some line ending char)
		Common::String filename = buffer;
		while (true) {
			bool lineEnded = false;
			buffer = "";
			while (!file->eos()) {
				byte b = file->readByte();
				if (b == ' ' || b == '\n' || b == '\r') {
					lineEnded = (b == '\n');
					break;
				}
				buffer += (char)b;
			}

			if (buffer == "" && file->eos()) break;
			if (!lineEnded) filename += " " + buffer;
			else break;
		}

		//parse timestamp
		uint32 timestamp = buffer.asUint64();
		if (buffer == "" || timestamp == 0) break;
		if (timestamps.contains(filename))
			timestamps[filename] = timestamp;
	}

	delete file;
	return timestamps;
}

SaveStateDescriptor AdlMetaEngine::querySaveMetaInfos(const char *target, int slot) const {
	Common::String fileName = Common::String::format("%s.s%02d", target, slot);
	Common::InSaveFile *inFile = g_system->getSavefileManager()->openForLoading(fileName);

	if (!inFile)
		return SaveStateDescriptor();

	if (inFile->readUint32BE() != MKTAG('A', 'D', 'L', ':')) {
		delete inFile;
		return SaveStateDescriptor();
	}

	byte saveVersion = inFile->readByte();
	if (saveVersion != SAVEGAME_VERSION) {
		delete inFile;
		return SaveStateDescriptor();
	}

	char name[SAVEGAME_NAME_LEN] = { };
	inFile->read(name, sizeof(name) - 1);
	inFile->readByte();

	if (inFile->eos() || inFile->err()) {
		delete inFile;
		return SaveStateDescriptor();
	}

	SaveStateDescriptor sd(slot, name);

	int year = inFile->readUint16BE();
	int month = inFile->readByte();
	int day = inFile->readByte();
	sd.setSaveDate(year + 1900, month + 1, day);

	int hour = inFile->readByte();
	int minutes = inFile->readByte();
	sd.setSaveTime(hour, minutes);

	uint32 playTime = inFile->readUint32BE();
	sd.setPlayTime(playTime);

	if (inFile->eos() || inFile->err()) {
		delete inFile;
		return SaveStateDescriptor();
	}

	Graphics::Surface *thumbnail;
	if (!Graphics::loadThumbnail(*inFile, thumbnail)) {
		delete inFile;
		return SaveStateDescriptor();
	}
	sd.setThumbnail(thumbnail);

	delete inFile;
	return sd;
}

/**
 * DoRestore
 */
static bool DoRestore() {
	Common::InSaveFile *f =  _vm->getSaveFileMan()->openForLoading(g_savedFiles[g_RestoreGameNumber].name);

	if (f == NULL) {
		return false;
	}

	Common::Serializer s(f, 0);
	SaveGameHeader hdr;
	if (!syncSaveGameHeader(s, hdr)) {
		delete f;	// Invalid header, or savegame too new -> skip it
		return false;
	}

	DoSync(s);

	uint32 id = f->readSint32LE();
	if (id != (uint32)0xFEEDFACE)
		error("Incompatible saved game");

	bool failed = (f->eos() || f->err());

	delete f;

	if (failed) {
		GUI::MessageDialog dialog(_("Failed to load game state from file."));
		dialog.runModal();
	}

	return !failed;
}

void SaveLoad::loadStream(GameId id) {
	Common::InSaveFile *save = openForLoading(id);
	if (save->size() < 32)
		error("SaveLoad::init - Savegame seems to be corrupted (not enough data: %i bytes)", save->size());

	if (!_savegame)
		error("SaveLoad::loadStream: savegame stream is invalid");

	// Load all savegame data
	uint8* buf = new uint8[8192];
	while (!save->eos() && !save->err()) {
		_engine->pollEvents();

		uint32 count = save->read(buf, sizeof(buf));
		if (count) {
			uint32 w = _savegame->write(buf, count);
			assert (w == count);
		}
	}

	if (save->err())
		error("SaveLoad::init - Error reading savegame");

	delete[] buf;
	delete save;

	// Move back to the beginning of the stream
	_savegame->seek(0);
}

Common::Error ToucheEngine::loadGameState(int num) {
	bool loadOk = false;
	Common::String gameStateFileName = generateGameStateFileName(_targetName.c_str(), num);
	Common::InSaveFile *f = _saveFileMan->openForLoading(gameStateFileName);
	if (f) {
		uint16 version = f->readUint16LE();
		if (version < kCurrentGameStateVersion) {
			warning("Unsupported gamestate version %d (index %d)", version, num);
		} else {
			f->skip(2 + kGameStateDescriptionLen);
			loadGameStateData(f);
			if (f->err() || f->eos()) {
				warning("Can't read file '%s'", gameStateFileName.c_str());
			} else {
				loadOk = true;
			}
		}
		delete f;
	}
	return loadOk ? Common::kNoError : Common::kUnknownError;
}

//.........这里部分代码省略.........
		in.read(_talkObjectList[i].filename, 13);
		_talkObjectList[i].scriptId = in.readByte();
		_talkObjectList[i].x = in.readSint16();
		_talkObjectList[i].y = in.readSint16();
		_talkObjectList[i].color = in.readByte();
	}

	for (int i = 0; i < 86; ++i) {
		if (!header.originalSave) {
			in.read(_sceneList[i].filename1, 10);
		} else {
			in.read(_sceneList[i].filename1, 9);
			_sceneList[i].filename1[9] = 0;
		}

		_sceneList[i].exit1 = in.readUint16();
		_sceneList[i].exit2 = in.readUint16();
		_sceneList[i].exit3 = in.readUint16();
		_sceneList[i].exit4 = in.readUint16();
		_sceneList[i].flags = in.readByte();
		_sceneList[i].sound = in.readByte();
	}

	_itemInHand = in.readSint16();

	if (header.originalSave) {
		uint32 currentTime = _system->getMillis();

		for (int i = 0; i < 6; ++i)
			_timer->setDelay(i, in.readSint32LE());

		for (int i = 0; i < 6; ++i) {
			if (in.readUint16LE())
				_timer->enable(i);
			else
				_timer->disable(i);
		}

		for (int i = 0; i < 6; ++i)
			_timer->setNextRun(i, currentTime + (in.readUint32LE() * _tickLength));

		_timer->resetNextRun();
	}

	_sceneExit1 = in.readUint16();
	_sceneExit2 = in.readUint16();
	_sceneExit3 = in.readUint16();
	_sceneExit4 = in.readUint16();

	if (saveFile->err() || saveFile->eos()) {
		warning("Load failed ('%s', '%s').", fileName, header.description.c_str());
		return Common::kUnknownError;
	} else {
		debugC(1, kDebugLevelMain, "Loaded savegame '%s.'", header.description.c_str());
	}

	if (loadedZTable != _characterShapeFile)
		loadCharacterShapes(_characterShapeFile);

	_screen->loadBitmap("_PLAYFLD.CPS", 3, 3, 0);
	if (!queryGameFlag(1))
		_screen->copyRegion(0xCE, 0x90, 0xCE, 0x90, 0x2C, 0x2C, 2, 0, Screen::CR_NO_P_CHECK);
	if (!queryGameFlag(2))
		_screen->copyRegion(0xFA, 0x90, 0xFA, 0x90, 0x46, 0x2C, 2, 0, Screen::CR_NO_P_CHECK);
	_screen->loadBitmap("_PLAYALL.CPS", 3, 3, 0);
	if (queryGameFlag(1))
		_screen->copyRegion(0xCE, 0x90, 0xCE, 0x90, 0x2C, 0x2C, 2, 0, Screen::CR_NO_P_CHECK);
	if (queryGameFlag(2))
		_screen->copyRegion(0xFA, 0x90, 0xFA, 0x90, 0x46, 0x2C, 2, 0, Screen::CR_NO_P_CHECK);

	redrawInventory(0);
	int cauldronUseCount = _cauldronUseCount;
	setCauldronState(_cauldronState, 0);
	_cauldronUseCount = cauldronUseCount;
	_mainCharX = _mainCharacter.x2 = _mainCharacter.x1;
	_mainCharY = _mainCharacter.y2 = _mainCharacter.y1;
	_mainCharacter.facing = 4;

	enterNewScene(_mainCharacter.sceneId, _mainCharacter.facing, 0, 0, 1);
	setDelayedCursorUpdate();

	if (_lastMusicCommand >= 0 && !_unkSceneScreenFlag1)
		snd_playWanderScoreViaMap(_lastMusicCommand, 1);

	while (!_screen->isMouseVisible())
		_screen->showMouse();

	setTimer1DelaySecs(7);
	_shownMessage = " ";
	_fadeMessagePalette = false;

	if (setFlag1EE)
		setGameFlag(0x1EE);

	// We didn't explicitly set the walk speed, but it's saved as part of
	// the _timers array, so we need to re-sync it with _configWalkspeed.
	setWalkspeed(_configWalkspeed);

	return Common::kNoError;
}