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/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the QtQuick module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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.
**
** 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.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef WANDERAFFECTOR_H
#define WANDERAFFECTOR_H
#include <QHash>
#include "qquickparticleaffector_p.h"
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
struct WanderData{
qreal x_vel;
qreal y_vel;
qreal x_peak;
qreal x_var;
qreal y_peak;
qreal y_var;
};
class QQuickWanderAffector : public QQuickParticleAffector
{
Q_OBJECT
Q_PROPERTY(qreal pace READ pace WRITE setPace NOTIFY paceChanged)
Q_PROPERTY(qreal xVariance READ xVariance WRITE setXVariance NOTIFY xVarianceChanged)
Q_PROPERTY(qreal yVariance READ yVariance WRITE setYVariance NOTIFY yVarianceChanged)
Q_PROPERTY(AffectableParameters affectedParameter READ affectedParameter WRITE setAffectedParameter NOTIFY affectedParameterChanged)
Q_ENUMS(AffectableParameters)
public:
enum AffectableParameters {
Position,
Velocity,
Acceleration
};
explicit QQuickWanderAffector(QQuickItem *parent = 0);
~QQuickWanderAffector();
// virtual void reset(int systemIdx);
qreal xVariance() const
{
return m_xVariance;
}
qreal yVariance() const
{
return m_yVariance;
}
qreal pace() const
{
return m_pace;
}
AffectableParameters affectedParameter() const
{
return m_affectedParameter;
}
protected:
virtual bool affectParticle(QQuickParticleData *d, qreal dt);
signals:
void xVarianceChanged(qreal arg);
void yVarianceChanged(qreal arg);
void paceChanged(qreal arg);
void affectedParameterChanged(AffectableParameters arg);
public slots:
void setXVariance(qreal arg)
{
if (m_xVariance != arg) {
m_xVariance = arg;
emit xVarianceChanged(arg);
}
}
void setYVariance(qreal arg)
{
if (m_yVariance != arg) {
m_yVariance = arg;
emit yVarianceChanged(arg);
}
}
void setPace(qreal arg)
{
if (m_pace != arg) {
m_pace = arg;
emit paceChanged(arg);
}
}
void setAffectedParameter(AffectableParameters arg)
{
if (m_affectedParameter != arg) {
m_affectedParameter = arg;
emit affectedParameterChanged(arg);
}
}
private:
WanderData* getData(int idx);
QHash<int, WanderData*> m_wanderData;
qreal m_xVariance;
qreal m_yVariance;
qreal m_pace;
AffectableParameters m_affectedParameter;
};
QT_END_NAMESPACE
QT_END_HEADER
#endif // WANDERAFFECTOR_H
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