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#ifndef MOVEMENTTRANSITION_H

#define MOVEMENTTRANSITION_H

#include <QtGui>

#include "window.h"

//![0]

class MovementTransition : public QEventTransition

{

    Q_OBJECT

public:

    MovementTransition(Window *window) :

        QEventTransition(window, QEvent::KeyPress) {

        this->window = window;

    }

//![0]

//![1]

protected:

    bool eventTest(QEvent *event) {

        if (event->type() == QEvent::StateMachineWrapped &&

            static_cast<QStateMachine::WrappedEvent *>(event)->event()->type() == QEvent::KeyPress) {

            QEvent *wrappedEvent = static_cast<QStateMachine::WrappedEvent *>(event)->event();

            QKeyEvent *keyEvent = static_cast<QKeyEvent *>(wrappedEvent);

            int key = keyEvent->key();

            return key == Qt::Key_2 || key == Qt::Key_8 || key == Qt::Key_6 ||

                   key == Qt::Key_4;

        }

        return false;

    }

//![1]

//![2]

    void onTransition(QEvent *event) {

        QKeyEvent *keyEvent = static_cast<QKeyEvent *>(

            static_cast<QStateMachine::WrappedEvent *>(event)->event());

        int key = keyEvent->key();

        switch (key) {

            case Qt::Key_4:

                window->movePlayer(Window::Left);

                break;

            case Qt::Key_8:

                window->movePlayer(Window::Up);

                break;

            case Qt::Key_6:

                window->movePlayer(Window::Right);

                break;

            case Qt::Key_2:

                window->movePlayer(Window::Down);

                break;

            default:

                ;

        }

    }

//![2]

private:

    Window *window;

};

#endif