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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 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
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