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#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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