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Diffstat (limited to 'examples/corelib/serialization/savegame/game.cpp')
| -rw-r--r-- | examples/corelib/serialization/savegame/game.cpp | 206 |
1 files changed, 206 insertions, 0 deletions
diff --git a/examples/corelib/serialization/savegame/game.cpp b/examples/corelib/serialization/savegame/game.cpp new file mode 100644 index 0000000000..4caec71a03 --- /dev/null +++ b/examples/corelib/serialization/savegame/game.cpp @@ -0,0 +1,206 @@ +/**************************************************************************** +** +** Copyright (C) 2016 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** BSD License Usage +** Alternatively, you may use this file under the terms of the BSD license +** as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of The Qt Company Ltd nor the names of its +** contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "game.h" + +#include <QFile> +#include <QJsonArray> +#include <QJsonDocument> +#include <QRandomGenerator> +#include <QTextStream> + +Character Game::player() const +{ + return mPlayer; +} + +QVector<Level> Game::levels() const +{ + return mLevels; +} + +//! [0] +void Game::newGame() +{ + mPlayer = Character(); + mPlayer.setName(QStringLiteral("Hero")); + mPlayer.setClassType(Character::Archer); + mPlayer.setLevel(QRandomGenerator::global()->bounded(15, 21)); + + mLevels.clear(); + mLevels.reserve(2); + + Level village(QStringLiteral("Village")); + QVector<Character> villageNpcs; + villageNpcs.reserve(2); + villageNpcs.append(Character(QStringLiteral("Barry the Blacksmith"), + QRandomGenerator::global()->bounded(8, 11), + Character::Warrior)); + villageNpcs.append(Character(QStringLiteral("Terry the Trader"), + QRandomGenerator::global()->bounded(6, 8), + Character::Warrior)); + village.setNpcs(villageNpcs); + mLevels.append(village); + + Level dungeon(QStringLiteral("Dungeon")); + QVector<Character> dungeonNpcs; + dungeonNpcs.reserve(3); + dungeonNpcs.append(Character(QStringLiteral("Eric the Evil"), + QRandomGenerator::global()->bounded(18, 26), + Character::Mage)); + dungeonNpcs.append(Character(QStringLiteral("Eric's Left Minion"), + QRandomGenerator::global()->bounded(5, 7), + Character::Warrior)); + dungeonNpcs.append(Character(QStringLiteral("Eric's Right Minion"), + QRandomGenerator::global()->bounded(4, 9), + Character::Warrior)); + dungeon.setNpcs(dungeonNpcs); + mLevels.append(dungeon); +} +//! [0] + +//! [3] +bool Game::loadGame(Game::SaveFormat saveFormat) +{ + QFile loadFile(saveFormat == Json + ? QStringLiteral("save.json") + : QStringLiteral("save.dat")); + + if (!loadFile.open(QIODevice::ReadOnly)) { + qWarning("Couldn't open save file."); + return false; + } + + QByteArray saveData = loadFile.readAll(); + + QJsonDocument loadDoc(saveFormat == Json + ? QJsonDocument::fromJson(saveData) + : QJsonDocument::fromBinaryData(saveData)); + + read(loadDoc.object()); + + QTextStream(stdout) << "Loaded save for " + << loadDoc["player"]["name"].toString() + << " using " + << (saveFormat != Json ? "binary " : "") << "JSON...\n"; + return true; +} +//! [3] + +//! [4] +bool Game::saveGame(Game::SaveFormat saveFormat) const +{ + QFile saveFile(saveFormat == Json + ? QStringLiteral("save.json") + : QStringLiteral("save.dat")); + + if (!saveFile.open(QIODevice::WriteOnly)) { + qWarning("Couldn't open save file."); + return false; + } + + QJsonObject gameObject; + write(gameObject); + QJsonDocument saveDoc(gameObject); + saveFile.write(saveFormat == Json + ? saveDoc.toJson() + : saveDoc.toBinaryData()); + + return true; +} +//! [4] + +//! [1] +void Game::read(const QJsonObject &json) +{ + if (json.contains("player") && json["player"].isObject()) + mPlayer.read(json["player"].toObject()); + + if (json.contains("levels") && json["levels"].isArray()) { + QJsonArray levelArray = json["levels"].toArray(); + mLevels.clear(); + mLevels.reserve(levelArray.size()); + for (int levelIndex = 0; levelIndex < levelArray.size(); ++levelIndex) { + QJsonObject levelObject = levelArray[levelIndex].toObject(); + Level level; + level.read(levelObject); + mLevels.append(level); + } + } +} +//! [1] + +//! [2] +void Game::write(QJsonObject &json) const +{ + QJsonObject playerObject; + mPlayer.write(playerObject); + json["player"] = playerObject; + + QJsonArray levelArray; + foreach (const Level level, mLevels) { + QJsonObject levelObject; + level.write(levelObject); + levelArray.append(levelObject); + } + json["levels"] = levelArray; +} +//! [2] + +void Game::print(int indentation) const +{ + const QString indent(indentation * 2, ' '); + QTextStream(stdout) << indent << "Player\n"; + mPlayer.print(indentation + 1); + + QTextStream(stdout) << indent << "Levels\n"; + for (Level level : mLevels) + level.print(indentation + 1); +} |