pingpong.h Example File

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 #ifndef PINGPONG_H
 #define PINGPONG_H

 #include <QTimer>
 #include <QObject>
 #include <qbluetoothserver.h>
 #include <qbluetoothserviceinfo.h>
 #include <qbluetoothlocaldevice.h>
 #include <qbluetoothservicediscoveryagent.h>

 static QString serviceUuid(QStringLiteral("e8e10f95-1a70-4b27-9ccf-02010264e9c9"));
 static QString androidUuid(QStringLiteral("c9e96402-0102-cf9c-274b-701a950fe1e8"));

 class PingPong: public QObject
 {
     Q_OBJECT
     Q_PROPERTY(float ballX READ ballX NOTIFY ballChanged)
     Q_PROPERTY(float ballY READ ballY NOTIFY ballChanged)
     Q_PROPERTY(float leftBlockY READ leftBlockY NOTIFY leftBlockChanged)
     Q_PROPERTY(float rightBlockY READ rightBlockY NOTIFY rightBlockChanged)
     Q_PROPERTY(bool showDialog READ showDialog NOTIFY showDialogChanged)
     Q_PROPERTY(QString message READ message NOTIFY showDialogChanged)
     Q_PROPERTY(int role READ role NOTIFY roleChanged)
     Q_PROPERTY(int leftResult READ leftResult NOTIFY resultChanged)
     Q_PROPERTY(int rightResult READ rightResult NOTIFY resultChanged)
 public:
     PingPong();
     ~PingPong();
     float ballX() const;
     float ballY() const;
     float leftBlockY() const;
     float rightBlockY() const;
     void checkBoundaries();
     void updateDirection();
     bool showDialog() const;
     QString message() const;
     void setMessage(const QString &message);
     int role() const;
     int leftResult() const;
     int rightResult() const;
     void checkResult();

 public slots:
     void startGame();
     void update();
     void setSize(const float &x, const float &y);
     void updateBall(const float &bX, const float &bY);
     void updateLeftBlock(const float &lY);
     void updateRightBlock(const float &rY);
     void startServer();
     void startClient();
     void clientConnected();
     void clientDisconnected();
     void serverConnected();
     void serverDisconnected();
     void socketError(QBluetoothSocket::SocketError);
     void serverError(QBluetoothServer::Error);
     void serviceScanError(QBluetoothServiceDiscoveryAgent::Error);
     void done();
     void addService(const QBluetoothServiceInfo &);
     void readSocket();

 Q_SIGNALS:
     void ballChanged();
     void leftBlockChanged();
     void rightBlockChanged();
     void showDialogChanged();
     void roleChanged();
     void resultChanged();

 private:
     QBluetoothServer *m_serverInfo;
     QBluetoothServiceInfo m_serviceInfo;
     QBluetoothSocket *socket;
     QBluetoothServiceDiscoveryAgent *discoveryAgent;

     float m_ballX;
     float m_ballY;
     float m_ballPreviousX;
     float m_ballPreviousY;
     float m_leftBlockY;
     float m_rightBlockY;
     QTimer *m_timer;
     float m_boardWidth;
     float m_boardHeight;
     float m_direction;
     float m_targetX;
     float m_targetY;
     int interval;
     int m_resultLeft;
     int m_resultRight;
     bool m_showDialog;
     QString m_message;
     int m_role;
     float m_proportionX;
     float m_proportionY;
     bool m_serviceFound;
 };

 #endif // PINGPONG_H