Qt with Cascades UI Examples Documentation

GameController.hpp Example File

scriptgame/src/GameController.hpp
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    #ifndef GAMECONTROLLER_HPP
    #define GAMECONTROLLER_HPP

    #include <bb/cascades/Container>

    #include <QObject>
    #include <QScriptEngine>

    class Board;
    class Player;

    /**
     * The GameController is the central class of this application.
     * It contains the classes that encapsulate the business logic (Board and Player)
     * and also the QScriptEngine, which is responsible for changing the properties of
     * Board and Player according to the JavaScript input.
     */
    class GameController : public QObject
    {
        Q_OBJECT

        // A custom property to make error messages from the script engine available to the UI
        Q_PROPERTY(QString scriptError READ scriptError NOTIFY scriptErrorChanged)

    public:
        GameController(QObject *parent = 0);

        // The accessor method for the script error property
        QString scriptError() const;

        /**
         * With this method we tell the GameController on which Container object it should
         * run the game.
         */
        void setBoard(bb::cascades::Container *board);

        /**
         * Resets the script engine to an initial state. Since reset() is not a slot, we have to
         * mark it with Q_INVOKABLE to make it accessible from the script engine environment.
         */
        Q_INVOKABLE void reset();

    public Q_SLOTS:
        // This method is called whenever the user clicks the 'Run Script' button in the UI
        void run(const QString &script);

    Q_SIGNALS:
        // The change notification signal for the script error property
        void scriptErrorChanged();

    private:
        // The Container object the game is run on
        bb::cascades::Container *m_boardContainer;

        // The Board object that contains the business logic for the maze board
        Board *m_board;

        // The Player object that contains the business logic for the main player
        Player *m_player;

        // The script error property
        QString m_scriptError;

        // The global script engine of this application
        QScriptEngine *m_scriptEngine;
    };

    #endif