In-App purchasing demo | Qt 6.2

- Qt 6.2
- In-App purchasing demo
- Qt 6.2.4 Reference Documentation

# In-App purchasing demo

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     #ifndef HANGMANGAME_H
     #define HANGMANGAME_H

     #include <QObject>
     #include <QStringList>
     #include <QMutex>
     #include <QSettings>
     #include <QtQml/qqml.h>

     #include "purchasing/inapp/inappproduct.h"
     #include "purchasing/inapp/inapppurchasebackend.h"
     #include "purchasing/inapp/inappstore.h"
     #include "purchasing/inapp/inapptransaction.h"
     #include "purchasing/qmltypes/inappproductqmltype.h"
     #include "purchasing/qmltypes/inappstoreqmltype.h"

     class HangmanGame : public QObject
     {
         Q_OBJECT
         Q_PROPERTY(QString word READ word NOTIFY wordChanged)
         Q_PROPERTY(QString lettersOwned READ lettersOwned NOTIFY lettersOwnedChanged)
         Q_PROPERTY(QString vowels READ vowels CONSTANT)
         Q_PROPERTY(QString consonants READ consonants CONSTANT)
         Q_PROPERTY(int errorCount READ errorCount NOTIFY errorCountChanged)
         Q_PROPERTY(bool vowelsUnlocked READ vowelsUnlocked WRITE setVowelsUnlocked NOTIFY vowelsUnlockedChanged)
         Q_PROPERTY(int vowelsAvailable READ vowelsAvailable WRITE setVowelsAvailable NOTIFY vowelsAvailableChanged)
         Q_PROPERTY(int wordsGiven READ wordsGiven WRITE setWordsGiven NOTIFY wordsGivenChanged)
         Q_PROPERTY(int  wordsGuessedCorrectly READ wordsGuessedCorrectly WRITE setWordsGuessedCorrectly NOTIFY wordsGuessedCorrectlyChanged)
         Q_PROPERTY(int score READ score WRITE setScore NOTIFY scoreChanged)
         QML_NAMED_ELEMENT(Hangman)

     public:
         explicit HangmanGame(QObject *parent = 0);
         Q_INVOKABLE void reset();
         Q_INVOKABLE void reveal();
         Q_INVOKABLE void gameOverReveal();
         Q_INVOKABLE void requestLetter(const QString &letterString);
         Q_INVOKABLE void guessWord(const QString &word);
         Q_INVOKABLE bool isVowel(const QString &letter);
         Q_INVOKABLE void setVowelsAvailable(int count);
         Q_INVOKABLE void setWordsGiven(int count);
         Q_INVOKABLE void setWordsGuessedCorrectly(int count);
         Q_INVOKABLE void setScore(int score);

         QString word() const { return m_word; }
         QString lettersOwned() const { return m_lettersOwned; }
         QString vowels() const;
         QString consonants() const;
         int errorCount() const;
         bool vowelsUnlocked() const;
         void setVowelsUnlocked(bool vowelsUnlocked);
         int vowelsAvailable() const;
         int wordsGiven() const;
         int wordsGuessedCorrectly() const;
         int score() const;

     signals:
         void wordChanged();
         void lettersOwnedChanged();
         void errorCountChanged();
         void vowelBought(const QChar &vowel);
         void purchaseWasSuccessful(bool wasSuccessful);
         void vowelsUnlockedChanged(bool unlocked);
         void vowelsAvailableChanged(int arg);
         void wordsGivenChanged(int arg);
         void wordsGuessedCorrectlyChanged(int arg);
         void scoreChanged(int arg);

     private slots:
         void registerLetterBought(const QChar &letter);

     private:
         void chooseRandomWord();
         void initWordList();
         int calculateEarnedVowels();
         int calculateEarnedPoints();

         QString m_word;
         QString m_lettersOwned;
         QStringList m_wordList;
         QRecursiveMutex m_lock;
         bool m_vowelsUnlocked;
         QSettings m_persistentSettings;
         int m_vowelsAvailable;
         int m_wordsGiven;
         int m_wordsGuessedCorrectly;
         int m_score;
     };

     #endif // HANGMANGAME_H