C++ SaveStateList::begin方法代码示例

	virtual SaveStateList listSaves(const char *target) const {
		Common::String pattern = Tucker::generateGameStateFileName(target, 0, true);
		Common::StringArray filenames = g_system->getSavefileManager()->listSavefiles(pattern);
		Tucker::TuckerEngine::SavegameHeader header;
		SaveStateList saveList;

		for (Common::StringArray::const_iterator file = filenames.begin(); file != filenames.end(); ++file) {
			int slot;
			const char *ext = strrchr(file->c_str(), '.');
			if (ext && (slot = atoi(ext + 1)) >= 0 && slot <= Tucker::kLastSaveSlot) {
				Common::InSaveFile *in = g_system->getSavefileManager()->openForLoading(*file);
				if (in) {
					if (Tucker::TuckerEngine::readSavegameHeader(in, header) == Tucker::TuckerEngine::kSavegameNoError) {
						saveList.push_back(SaveStateDescriptor(slot, header.description));
					}

					delete in;
				}
			}
		}

		// Sort saves based on slot number.
		Common::sort(saveList.begin(), saveList.end(), SaveStateDescriptorSlotComparator());
		return saveList;
	}

SaveStateList DrasculaMetaEngine::listSaves(const char *target) const {
	Common::SaveFileManager *saveFileMan = g_system->getSavefileManager();
	Common::StringArray filenames;
	Common::String pattern = target;
	pattern += ".###";

	filenames = saveFileMan->listSavefiles(pattern);

	SaveStateList saveList;
	int slotNum = 0;
	for (Common::StringArray::const_iterator file = filenames.begin(); file != filenames.end(); ++file) {
		// Obtain the last 3 digits of the filename, since they correspond to the save slot
		slotNum = atoi(file->c_str() + file->size() - 3);

		if (slotNum >= 0 && slotNum <= getMaximumSaveSlot()) {
			Common::InSaveFile *in = saveFileMan->openForLoading(*file);
			if (in) {
				SaveStateDescriptor desc = loadMetaData(in, slotNum, false);
				if (desc.getSaveSlot() != slotNum) {
					// invalid
					delete in;
					continue;
				}
				saveList.push_back(desc);
				delete in;
			}
		}
	}

	// Sort saves based on slot number.
	Common::sort(saveList.begin(), saveList.end(), SaveStateDescriptorSlotComparator());
	return saveList;
}

void Script::o_checkvalidsaves() {
	debugScript(1, true, "CHECKVALIDSAVES");

	// Reset the array of valid saves and the savegame names cache
	for (int i = 0; i < 10; i++) {
		setVariable(i, 0);
		_saveNames[i] = "E M P T Y";
	}

	// Get the list of savefiles
	SaveStateList list = SaveLoad::listValidSaves(ConfMan.getActiveDomainName());

	// Mark the existing savefiles as valid
	uint count = 0;
	SaveStateList::iterator it = list.begin();
	while (it != list.end()) {
		int8 slot = it->getVal("save_slot").lastChar() - '0';
		if (SaveLoad::isSlotValid(slot)) {
			debugScript(2, true, "  Found valid savegame: %s", it->getVal("description").c_str());

			// Mark this slot as used
			setVariable(slot, 1);

			// Cache this slot's description
			_saveNames[slot] = it->getVal("description");
			count++;
		}
		it++;
	}

	// Save the number of valid saves
	setVariable(0x104, count);
	debugScript(1, true, "  Found %d valid savegames", count);
}

SaveStateList LureMetaEngine::listSaves(const char *target) const {
	Common::SaveFileManager *saveFileMan = g_system->getSavefileManager();
	Common::StringArray filenames;
	Common::String saveDesc;
	Common::String pattern = "lure.###";

	filenames = saveFileMan->listSavefiles(pattern);

	SaveStateList saveList;
	for (Common::StringArray::const_iterator file = filenames.begin(); file != filenames.end(); ++file) {
		// Obtain the last 3 digits of the filename, since they correspond to the save slot
		int slotNum = atoi(file->c_str() + file->size() - 3);

		if (slotNum >= 0 && slotNum <= 999) {
			Common::InSaveFile *in = saveFileMan->openForLoading(*file);
			if (in) {
				saveDesc = Lure::getSaveName(in);
				saveList.push_back(SaveStateDescriptor(slotNum, saveDesc));
				delete in;
			}
		}
	}

	// Sort saves based on slot number.
	Common::sort(saveList.begin(), saveList.end(), SaveStateDescriptorSlotComparator());
	return saveList;
}

	SaveStateList listSaves(const char *target) const override {
		Common::String pattern = Common::String::format("%s-###.tlj", target);
		Common::StringArray filenames = g_system->getSavefileManager()->listSavefiles(pattern);

		int targetLen = strlen(target);

		SaveStateList saveList;
		for (Common::StringArray::const_iterator filename = filenames.begin(); filename != filenames.end(); ++filename) {
			// Extract the slot number from the filename
			char slot[4];
			slot[0] = (*filename)[targetLen + 1];
			slot[1] = (*filename)[targetLen + 2];
			slot[2] = (*filename)[targetLen + 3];
			slot[3] = '\0';

			// Read the description from the save
			Common::String description;
			Common::InSaveFile *save = g_system->getSavefileManager()->openForLoading(*filename);
			if (save) {
				StateReadStream *stream = new StateReadStream(save);
				description = stream->readString();
				delete stream;
			}

			saveList.push_back(SaveStateDescriptor(atoi(slot), description));
		}

		Common::sort(saveList.begin(), saveList.end(), cmpSave);
		return saveList;
	}

SaveStateList GrimMetaEngine::listSaves(const char *target) const {
	Common::SaveFileManager *saveFileMan = g_system->getSavefileManager();
	Common::StringArray filenames;
	Common::String pattern = "grim*.gsv";

	filenames = saveFileMan->listSavefiles(pattern);

	SaveStateList saveList;
	char str[256];
	int32 strSize;
	for (Common::StringArray::const_iterator file = filenames.begin(); file != filenames.end(); ++file) {
		// Obtain the last digits of the filename, since they correspond to the save slot
		int slotNum = atoi(file->c_str() + 4);

		if (slotNum >= 0) {
			SaveGame *savedState = SaveGame::openForLoading(*file);
			if (savedState && savedState->isCompatible()) {
				savedState->beginSection('SUBS');
				strSize = savedState->readLESint32();
				savedState->read(str, strSize);
				savedState->endSection();
				saveList.push_back(SaveStateDescriptor(slotNum, str));
			}
			delete savedState;
		}
	}

	Common::sort(saveList.begin(), saveList.end(), cmpSave);
	return saveList;
}

	virtual SaveStateList listSaves(const char *target) const {
		Common::SaveFileManager *saveFileMan = g_system->getSavefileManager();
		SaveGameHeader header;
		Common::String pattern = target;
		pattern += ".###";

		Common::StringArray filenames;
		filenames = saveFileMan->listSavefiles(pattern.c_str());

		SaveStateList saveList;

		for (Common::StringArray::const_iterator file = filenames.begin(); file != filenames.end(); ++file) {
			// Obtain the last 3 digits of the filename, since they correspond to the save slot
			int slotNum = atoi(file->c_str() + file->size() - 3);

			if ((slotNum >= 0) && (slotNum <= 999)) {
				Common::InSaveFile *in = saveFileMan->openForLoading(file->c_str());
				if (in) {
					if (DM::readSaveGameHeader(in, &header))
						saveList.push_back(SaveStateDescriptor(slotNum, header._descr.getDescription()));
					delete in;
				}
			}
		}

		// Sort saves based on slot number.
		Common::sort(saveList.begin(), saveList.end(), SaveStateDescriptorSlotComparator());
		return saveList;
	}

SaveStateList DraciMetaEngine::listSaves(const char *target) const {
	Common::SaveFileManager *saveFileMan = g_system->getSavefileManager();
	Common::StringArray filenames;
	Common::String pattern("draci.s##");

	filenames = saveFileMan->listSavefiles(pattern);

	SaveStateList saveList;
	for (Common::StringArray::const_iterator file = filenames.begin(); file != filenames.end(); ++file) {
		// Obtain the last 2 digits of the filename, since they correspond to the save slot
		int slotNum = atoi(file->c_str() + file->size() - 2);

		if (slotNum >= 0 && slotNum <= 99) {
			Common::InSaveFile *in = saveFileMan->openForLoading(*file);
			if (in) {
				Draci::DraciSavegameHeader header;
				if (Draci::readSavegameHeader(in, header)) {
					saveList.push_back(SaveStateDescriptor(slotNum, header.saveName));
				}
				delete in;
			}
		}
	}

	// Sort saves based on slot number.
	Common::sort(saveList.begin(), saveList.end(), SaveStateDescriptorSlotComparator());
	return saveList;
}

SaveStateList TinselMetaEngine::listSaves(const char *target) const {
	Common::String pattern = target;
	pattern = pattern + ".###";
	Common::StringArray files = g_system->getSavefileManager()->listSavefiles(pattern);

	SaveStateList saveList;
	int slotNum = 0;
	for (Common::StringArray::const_iterator file = files.begin(); file != files.end(); ++file) {
		// Obtain the last 3 digits of the filename, since they correspond to the save slot
		slotNum = atoi(file->c_str() + file->size() - 3);

		const Common::String &fname = *file;
		Common::InSaveFile *in = g_system->getSavefileManager()->openForLoading(fname);
		if (in) {
			in->readUint32LE();		// skip id
			in->readUint32LE();		// skip size
			in->readUint32LE();		// skip version
			char saveDesc[Tinsel::SG_DESC_LEN];
			in->read(saveDesc, sizeof(saveDesc));

			saveDesc[Tinsel::SG_DESC_LEN - 1] = 0;

			saveList.push_back(SaveStateDescriptor(slotNum, saveDesc));
			delete in;
		}
	}

	// Sort saves based on slot number.
	Common::sort(saveList.begin(), saveList.end(), SaveStateDescriptorSlotComparator());
	return saveList;
}

SaveStateList AccessMetaEngine::listSaves(const char *target) const {
    Common::SaveFileManager *saveFileMan = g_system->getSavefileManager();
    Common::StringArray filenames;
    Common::String saveDesc;
    Common::String pattern = Common::String::format("%s.0##", target);
    Access::AccessSavegameHeader header;

    filenames = saveFileMan->listSavefiles(pattern);

    SaveStateList saveList;
    for (Common::StringArray::const_iterator file = filenames.begin(); file != filenames.end(); ++file) {
        const char *ext = strrchr(file->c_str(), '.');
        int slot = ext ? atoi(ext + 1) : -1;

        if (slot >= 0 && slot < MAX_SAVES) {
            Common::InSaveFile *in = g_system->getSavefileManager()->openForLoading(*file);

            if (in) {
                Access::AccessEngine::readSavegameHeader(in, header);
                saveList.push_back(SaveStateDescriptor(slot, header._saveName));

                header._thumbnail->free();
                delete header._thumbnail;
                delete in;
            }
        }
    }

    // Sort saves based on slot number.
    Common::sort(saveList.begin(), saveList.end(), SaveStateDescriptorSlotComparator());
    return saveList;
}

SaveStateList WageMetaEngine::listSaves(const char *target) const {
    const uint32 WAGEflag = MKTAG('W','A','G','E');
    Common::SaveFileManager *saveFileMan = g_system->getSavefileManager();
    Common::StringArray filenames;
    char saveDesc[31];
    Common::String pattern = target;
    pattern += ".###";

    filenames = saveFileMan->listSavefiles(pattern);

    SaveStateList saveList;
    for (Common::StringArray::const_iterator file = filenames.begin(); file != filenames.end(); ++file) {
        // Obtain the last 3 digits of the filename, since they correspond to the save slot
        int slotNum = atoi(file->c_str() + file->size() - 3);

        if (slotNum >= 0 && slotNum <= 999) {
            Common::InSaveFile *in = saveFileMan->openForLoading(*file);
            if (in) {
                uint32 type = in->readUint32BE();
                if (type == WAGEflag)
                    in->read(saveDesc, 31);
                saveList.push_back(SaveStateDescriptor(slotNum, saveDesc));
                delete in;
            }
        }
    }

    // Sort saves based on slot number.
    Common::sort(saveList.begin(), saveList.end(), SaveStateDescriptorSlotComparator());
    return saveList;
}

SaveStateList SkyMetaEngine::listSaves(const char *target) const {
    Common::SaveFileManager *saveFileMan = g_system->getSavefileManager();
    SaveStateList saveList;

    // Load the descriptions
    Common::StringArray savenames;
    savenames.resize(MAX_SAVE_GAMES+1);

    Common::InSaveFile *inf;
    inf = saveFileMan->openForLoading("SKY-VM.SAV");
    if (inf != NULL) {
        char *tmpBuf =  new char[MAX_SAVE_GAMES * MAX_TEXT_LEN];
        char *tmpPtr = tmpBuf;
        inf->read(tmpBuf, MAX_SAVE_GAMES * MAX_TEXT_LEN);
        for (int i = 0; i < MAX_SAVE_GAMES; ++i) {
            savenames[i] = tmpPtr;
            tmpPtr += savenames[i].size() + 1;
        }
        delete inf;
        delete[] tmpBuf;
    }

    // Find all saves
    Common::StringArray filenames;
    filenames = saveFileMan->listSavefiles("SKY-VM.###");

    // Slot 0 is the autosave, if it exists.
    // TODO: Check for the existence of the autosave -- but this require us
    // to know which SKY variant we are looking at.
    saveList.insert_at(0, SaveStateDescriptor(0, "*AUTOSAVE*"));

    // Prepare the list of savestates by looping over all matching savefiles
    for (Common::StringArray::const_iterator file = filenames.begin(); file != filenames.end(); ++file) {
        // Extract the extension
        Common::String ext = file->c_str() + file->size() - 3;
        ext.toUppercase();
        int slotNum = atoi(ext.c_str());
        Common::InSaveFile *in = saveFileMan->openForLoading(*file);
        if (in) {
            saveList.push_back(SaveStateDescriptor(slotNum+1, savenames[slotNum]));
            delete in;
        }
    }

    // Sort saves based on slot number.
    Common::sort(saveList.begin(), saveList.end(), SaveStateDescriptorSlotComparator());
    return saveList;
}

SaveStateList CGE2MetaEngine::listSaves(const char *target) const {
	Common::SaveFileManager *saveFileMan = g_system->getSavefileManager();
	Common::StringArray filenames;
	Common::String pattern = target;
	pattern += ".###";

	filenames = saveFileMan->listSavefiles(pattern);

	SaveStateList saveList;
	for (Common::StringArray::const_iterator filename = filenames.begin(); filename != filenames.end(); ++filename) {
		// Obtain the last 3 digits of the filename, since they correspond to the save slot
		int slotNum = atoi(filename->c_str() + filename->size() - 3);

		if (slotNum >= 0 && slotNum <= 99) {

			Common::InSaveFile *file = saveFileMan->openForLoading(*filename);
			if (file) {
				CGE2::SavegameHeader header;

				// Check to see if it's a ScummVM savegame or not
				char buffer[kSavegameStrSize + 1];
				file->read(buffer, kSavegameStrSize + 1);

				if (!strncmp(buffer, kSavegameStr, kSavegameStrSize + 1)) {
					// Valid savegame
					if (CGE2::CGE2Engine::readSavegameHeader(file, header)) {
						saveList.push_back(SaveStateDescriptor(slotNum, header.saveName));
						if (header.thumbnail) {
							header.thumbnail->free();
							delete header.thumbnail;
						}
					}
				} else {
					// Must be an original format savegame
					saveList.push_back(SaveStateDescriptor(slotNum, "Unknown"));
				}

				delete file;
			}
		}
	}

	// Sort saves based on slot number.
	Common::sort(saveList.begin(), saveList.end(), SaveStateDescriptorSlotComparator());
	return saveList;
}

SaveStateList AdlMetaEngine::listSaves(const char *target) const {
	Common::SaveFileManager *saveFileMan = g_system->getSavefileManager();
	Common::StringArray files = saveFileMan->listSavefiles(Common::String(target) + ".s##");

	SaveStateList saveList;

	for (uint i = 0; i < files.size(); ++i) {
		const Common::String &fileName = files[i];
		Common::InSaveFile *inFile = saveFileMan->openForLoading(fileName);
		if (!inFile) {
			warning("Cannot open save file '%s'", fileName.c_str());
			continue;
		}

		if (inFile->readUint32BE() != MKTAG('A', 'D', 'L', ':')) {
			warning("No header found in '%s'", fileName.c_str());
			delete inFile;
			continue;
		}

		byte saveVersion = inFile->readByte();
		if (saveVersion != SAVEGAME_VERSION) {
			warning("Unsupported save game version %i found in '%s'", saveVersion, fileName.c_str());
			delete inFile;
			continue;
		}

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

		int slotNum = atoi(fileName.c_str() + fileName.size() - 2);
		SaveStateDescriptor sd(slotNum, name);
		saveList.push_back(sd);
	}

	// Sort saves based on slot number.
	Common::sort(saveList.begin(), saveList.end(), SaveStateDescriptorSlotComparator());
	return saveList;
}

bool EventRecorder::switchMode() {
	const Common::String gameId = ConfMan.get("gameid");
	const EnginePlugin *plugin = 0;
	EngineMan.findGame(gameId, &plugin);
	bool metaInfoSupport = (*plugin)->hasFeature(MetaEngine::kSavesSupportMetaInfo);
	bool featuresSupport = metaInfoSupport &&
						  g_engine->canSaveGameStateCurrently() &&
						  (*plugin)->hasFeature(MetaEngine::kSupportsListSaves) &&
						  (*plugin)->hasFeature(MetaEngine::kSupportsDeleteSave);
	if (!featuresSupport) {
		return false;
	}

	int emptySlot = 1;
	SaveStateList saveList = (*plugin)->listSaves(gameId.c_str());
	for (SaveStateList::const_iterator x = saveList.begin(); x != saveList.end(); ++x) {
		int saveSlot = x->getSaveSlot();
		if (saveSlot == 0) {
			continue;
		}
		if (emptySlot != saveSlot) {
			break;
		}
		emptySlot++;
	}
	Common::String saveName;
	if (emptySlot >= 0) {
		saveName = Common::String::format("Save %d", emptySlot + 1);
		Common::Error status = g_engine->saveGameState(emptySlot, saveName);
		if (status.getCode() == Common::kNoError) {
			Common::Event eventRTL;
			eventRTL.type = Common::EVENT_RTL;
			g_system->getEventManager()->pushEvent(eventRTL);
		}
	}
	ConfMan.set("record_mode", "", Common::ConfigManager::kTransientDomain);
	ConfMan.setInt("save_slot", emptySlot, Common::ConfigManager::kTransientDomain);
	_needcontinueGame = true;
	return true;
}