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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the examples 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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at http://www.qtsoftware.com/contact.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef BOAT_P_H
+#define BOAT_P_H
+
+//
+// W A R N I N G
+// -------------
+//
+// This file is not part of the Qt API. It exists purely as an
+// implementation detail. This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+//Own
+#include "bomb.h"
+#include "graphicsscene.h"
+
+// Qt
+#include <QtGui/QKeyEventTransition>
+
+static const int MAX_BOMB = 5;
+
+
+//These transtion test if we have to stop the boat (i.e current speed is 1)
+class KeyStopTransition : public QKeyEventTransition
+{
+public:
+ KeyStopTransition(Boat *boat, QEvent::Type type, int key)
+ : QKeyEventTransition(boat, type, key)
+ {
+ this->boat = boat;
+ this->key = key;
+ }
+protected:
+ virtual bool eventTest(QEvent *event)
+ {
+ Q_UNUSED(event);
+ if (!QKeyEventTransition::eventTest(event))
+ return false;
+ if (boat->currentSpeed() == 1)
+ return true;
+ else
+ return false;
+ }
+private:
+ Boat * boat;
+ int key;
+};
+
+//These transtion test if we have to move the boat (i.e current speed was 0 or another value)
+ class KeyMoveTransition : public QKeyEventTransition
+{
+public:
+ KeyMoveTransition(Boat *boat, QEvent::Type type, int key)
+ : QKeyEventTransition(boat, type, key)
+ {
+ this->boat = boat;
+ this->key = key;
+ }
+protected:
+ virtual bool eventTest(QEvent *event)
+ {
+ Q_UNUSED(event);
+ if (!QKeyEventTransition::eventTest(event))
+ return false;
+ if (boat->currentSpeed() >= 0)
+ return true;
+ else
+ return false;
+
+ }
+ void onTransition(QEvent *)
+ {
+ //We decrease the speed if needed
+ if (key == Qt::Key_Left && boat->currentDirection() == Boat::Right)
+ boat->setCurrentSpeed(boat->currentSpeed() - 1);
+ else if (key == Qt::Key_Right && boat->currentDirection() == Boat::Left)
+ boat->setCurrentSpeed(boat->currentSpeed() - 1);
+ else if (boat->currentSpeed() < 3)
+ boat->setCurrentSpeed(boat->currentSpeed() + 1);
+ boat->updateBoatMovement();
+ }
+private:
+ Boat * boat;
+ int key;
+};
+
+//This transition trigger the bombs launch
+ class KeyLaunchTransition : public QKeyEventTransition
+{
+public:
+ KeyLaunchTransition(Boat *boat, QEvent::Type type, int key)
+ : QKeyEventTransition(boat, type, key)
+ {
+ this->boat = boat;
+ this->key = key;
+ }
+protected:
+ virtual bool eventTest(QEvent *event)
+ {
+ Q_UNUSED(event);
+ if (!QKeyEventTransition::eventTest(event))
+ return false;
+ //We have enough bomb?
+ if (boat->bombsLaunched() < MAX_BOMB)
+ return true;
+ else
+ return false;
+ }
+private:
+ Boat * boat;
+ int key;
+};
+
+//This state is describing when the boat is moving right
+class MoveStateRight : public QState
+{
+public:
+ MoveStateRight(Boat *boat,QState *parent = 0) : QState(parent)
+ {
+ this->boat = boat;
+ }
+protected:
+ void onEntry(QEvent *)
+ {
+ boat->setCurrentDirection(Boat::Right);
+ boat->updateBoatMovement();
+ }
+private:
+ Boat * boat;
+};
+
+ //This state is describing when the boat is moving left
+class MoveStateLeft : public QState
+{
+public:
+ MoveStateLeft(Boat *boat,QState *parent = 0) : QState(parent)
+ {
+ this->boat = boat;
+ }
+protected:
+ void onEntry(QEvent *)
+ {
+ boat->setCurrentDirection(Boat::Left);
+ boat->updateBoatMovement();
+ }
+private:
+ Boat * boat;
+};
+
+//This state is describing when the boat is in a stand by position
+class StopState : public QState
+{
+public:
+ StopState(Boat *boat,QState *parent = 0) : QState(parent)
+ {
+ this->boat = boat;
+ }
+protected:
+ void onEntry(QEvent *)
+ {
+ boat->setCurrentSpeed(0);
+ boat->setCurrentDirection(Boat::None);
+ boat->updateBoatMovement();
+ }
+private:
+ Boat * boat;
+};
+
+//This state is describing the launch of the torpedo on the right
+class LaunchStateRight : public QState
+{
+public:
+ LaunchStateRight(Boat *boat,QState *parent = 0) : QState(parent)
+ {
+ this->boat = boat;
+ }
+protected:
+ void onEntry(QEvent *)
+ {
+ Bomb *b = new Bomb();
+ b->setPos(boat->x()+boat->size().width(),boat->y());
+ GraphicsScene *scene = static_cast<GraphicsScene *>(boat->scene());
+ scene->addItem(b);
+ b->launch(Bomb::Right);
+ boat->setBombsLaunched(boat->bombsLaunched() + 1);
+ }
+private:
+ Boat * boat;
+};
+
+//This state is describing the launch of the torpedo on the left
+class LaunchStateLeft : public QState
+{
+public:
+ LaunchStateLeft(Boat *boat,QState *parent = 0) : QState(parent)
+ {
+ this->boat = boat;
+ }
+protected:
+ void onEntry(QEvent *)
+ {
+ Bomb *b = new Bomb();
+ b->setPos(boat->x() - b->size().width(), boat->y());
+ GraphicsScene *scene = static_cast<GraphicsScene *>(boat->scene());
+ scene->addItem(b);
+ b->launch(Bomb::Left);
+ boat->setBombsLaunched(boat->bombsLaunched() + 1);
+ }
+private:
+ Boat * boat;
+};
+
+#endif // BOAT_P_H