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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (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 qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef TANKITEM_H
+#define TANKITEM_H
+
+#include "gameitem.h"
+
+#include <QColor>
+
+class Action;
+class TankItem: public GameItem
+{
+ Q_OBJECT
+ Q_PROPERTY(bool enabled READ enabled WRITE setEnabled)
+ Q_PROPERTY(qreal direction READ direction WRITE turnTo)
+ Q_PROPERTY(qreal distanceToObstacle READ distanceToObstacle)
+public:
+ TankItem(QObject *parent = 0);
+
+ void setColor(const QColor &color) { m_color = color; }
+ QColor color() const { return m_color; }
+
+ void idle(qreal elapsed);
+ void setDirection(qreal newDirection);
+
+ qreal speed() const { return 90.0; }
+ qreal angularSpeed() const { return 90.0; }
+
+ QRectF boundingRect() const;
+
+ void hitByRocket();
+
+ void setEnabled(bool b) { m_enabled = b; }
+ bool enabled() const { return m_enabled; }
+
+ qreal direction() const;
+ qreal distanceToObstacle() const;
+ qreal distanceToObstacle(QGraphicsItem **item) const;
+
+//! [0]
+signals:
+ void tankSpotted(qreal direction, qreal distance);
+ void collision(const QLineF &collidedLine);
+ void actionCompleted();
+ void cannonFired();
+ void aboutToBeDestroyed();
+
+public slots:
+ void moveForwards(qreal length = 10.0);
+ void moveBackwards(qreal length = 10.0);
+ void turn(qreal degrees = 30.0);
+ void turnTo(qreal degrees = 0.0);
+ void stop();
+ void fireCannon();
+//! [0]
+
+protected:
+ virtual void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);
+ QVariant itemChange(QGraphicsItem::GraphicsItemChange change, const QVariant &value);
+
+private:
+ void setAction(Action *newAction);
+
+ Action *m_currentAction;
+ qreal m_currentDirection;
+ QColor m_color;
+ bool m_enabled;
+};
+
+#endif