--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/demos/sub-attaq/states.h	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,180 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtCore module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef STATES_H
+#define STATES_H
+
+//Qt
+#include <QtCore/QState>
+#include <QtCore/QSignalTransition>
+#include <QtCore/QPropertyAnimation>
+#include <QtGui/QKeyEventTransition>
+#include <QtCore/QSet>
+
+class GraphicsScene;
+class Boat;
+class SubMarine;
+QT_BEGIN_NAMESPACE
+class QStateMachine;
+QT_END_NAMESPACE
+
+class PlayState : public QState
+{
+public:
+    PlayState(GraphicsScene *scene, QState *parent = 0);
+    ~PlayState();
+
+ protected:
+    void onEntry(QEvent *);
+
+private :
+    GraphicsScene *scene;
+    QStateMachine *machine;
+    int currentLevel;
+    int score;
+    QState *parallelChild;
+
+    friend class UpdateScoreState;
+    friend class UpdateScoreTransition;
+    friend class WinTransition;
+    friend class CustomSpaceTransition;
+    friend class WinState;
+    friend class LostState;
+    friend class LevelState;
+};
+
+class LevelState : public QState
+{
+public:
+    LevelState(GraphicsScene *scene, PlayState *game, QState *parent = 0);
+protected:
+    void onEntry(QEvent *);
+private :
+    void initializeLevel();
+    GraphicsScene *scene;
+    PlayState *game;
+};
+
+class PauseState : public QState
+{
+public:
+    PauseState(GraphicsScene *scene, QState *parent = 0);
+
+protected:
+    void onEntry(QEvent *);
+    void onExit(QEvent *);
+private :
+    GraphicsScene *scene;
+    Boat *boat;
+};
+
+class LostState : public QState
+{
+public:
+    LostState(GraphicsScene *scene, PlayState *game, QState *parent = 0);
+
+protected:
+    void onEntry(QEvent *);
+    void onExit(QEvent *);
+private :
+    GraphicsScene *scene;
+    PlayState *game;
+};
+
+class WinState : public QState
+{
+public:
+    WinState(GraphicsScene *scene, PlayState *game, QState *parent = 0);
+
+protected:
+    void onEntry(QEvent *);
+    void onExit(QEvent *);
+private :
+    GraphicsScene *scene;
+    PlayState *game;
+};
+
+class UpdateScoreState : public QState
+{
+public:
+    UpdateScoreState(PlayState *game, QState *parent);
+private:
+    QPropertyAnimation *scoreAnimation;
+    PlayState *game;
+};
+
+//These transtion is used to update the score
+class UpdateScoreTransition : public QSignalTransition
+{
+public:
+    UpdateScoreTransition(GraphicsScene *scene, PlayState *game, QAbstractState *target);
+protected:
+    virtual bool eventTest(QEvent *event);
+private:
+    PlayState * game;
+    GraphicsScene *scene;
+};
+
+//These transtion test if we have won the game
+class WinTransition : public QSignalTransition
+{
+public:
+    WinTransition(GraphicsScene *scene, PlayState *game, QAbstractState *target);
+protected:
+    virtual bool eventTest(QEvent *event);
+private:
+    PlayState * game;
+    GraphicsScene *scene;
+};
+
+//These transtion is true if one level has been completed and the player want to continue
+ class CustomSpaceTransition : public QKeyEventTransition
+{
+public:
+    CustomSpaceTransition(QWidget *widget, PlayState *game, QEvent::Type type, int key);
+protected:
+    virtual bool eventTest(QEvent *event);
+private:
+    PlayState *game;
+    int key;
+};
+
+#endif // STATES_H