game.cpp Example File

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  #include "game.h"

  #include <QFile>
  #include <QJsonArray>
  #include <QJsonDocument>

  Game::Game()
  {
  }

  const Character &Game::player() const
  {
      return mPlayer;
  }

  const QList<Level> &Game::levels() const {
      return mLevels;
  }

  void Game::newGame() {
      mPlayer = Character();
      mPlayer.setName(QStringLiteral("Hero"));
      mPlayer.setClassType(Character::Archer);
      mPlayer.setLevel(15);

      mLevels.clear();

      Level village;
      QList<Character> villageNpcs;
      villageNpcs.append(Character(QStringLiteral("Barry the Blacksmith"), 10, Character::Warrior));
      villageNpcs.append(Character(QStringLiteral("Terry the Trader"), 10, Character::Warrior));
      village.setNpcs(villageNpcs);
      mLevels.append(village);

      Level dungeon;
      QList<Character> dungeonNpcs;
      dungeonNpcs.append(Character(QStringLiteral("Eric the Evil"), 20, Character::Mage));
      dungeonNpcs.append(Character(QStringLiteral("Eric's Sidekick #1"), 5, Character::Warrior));
      dungeonNpcs.append(Character(QStringLiteral("Eric's Sidekick #2"), 5, Character::Warrior));
      dungeon.setNpcs(dungeonNpcs);
      mLevels.append(dungeon);
  }

  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());

      return true;
  }

  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;
  }

  void Game::read(const QJsonObject &json)
  {
      mPlayer.read(json["player"].toObject());

      mLevels.clear();
      QJsonArray levelArray = json["levels"].toArray();
      for (int levelIndex = 0; levelIndex < levelArray.size(); ++levelIndex) {
          QJsonObject levelObject = levelArray[levelIndex].toObject();
          Level level;
          level.read(levelObject);
          mLevels.append(level);
      }
  }

  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;
  }