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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef CUSTOMAFFECTOR_H
#define CUSTOMAFFECTOR_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.
//
#include <QObject>
#include <QtQml/qqml.h>
#include "qquickparticlesystem_p.h"
#include "qquickparticleextruder_p.h"
#include "qquickparticleaffector_p.h"
#include "qquickdirection_p.h"
QT_BEGIN_NAMESPACE
class Q_QUICKPARTICLES_EXPORT QQuickCustomAffector : public QQuickParticleAffector
{
Q_OBJECT
Q_PROPERTY(bool relative READ relative WRITE setRelative NOTIFY relativeChanged)
Q_PROPERTY(QQuickDirection *position READ position WRITE setPosition NOTIFY positionChanged RESET positionReset)
Q_PROPERTY(QQuickDirection *velocity READ velocity WRITE setVelocity NOTIFY velocityChanged RESET velocityReset)
Q_PROPERTY(QQuickDirection *acceleration READ acceleration WRITE setAcceleration NOTIFY accelerationChanged RESET accelerationReset)
QML_NAMED_ELEMENT(Affector)
QML_ADDED_IN_VERSION(2, 0)
public:
explicit QQuickCustomAffector(QQuickItem *parent = nullptr);
void affectSystem(qreal dt) override;
QQuickDirection * position() const
{
return m_position;
}
QQuickDirection * velocity() const
{
return m_velocity;
}
QQuickDirection * acceleration() const
{
return m_acceleration;
}
void positionReset()
{
m_position = &m_nullVector;
}
void velocityReset()
{
m_velocity = &m_nullVector;
}
void accelerationReset()
{
m_acceleration = &m_nullVector;
}
bool relative() const
{
return m_relative;
}
Q_SIGNALS:
void affectParticles(const QList<QQuickV4ParticleData> &particles, qreal dt);
void positionChanged(QQuickDirection * arg);
void velocityChanged(QQuickDirection * arg);
void accelerationChanged(QQuickDirection * arg);
void relativeChanged(bool arg);
public Q_SLOTS:
void setPosition(QQuickDirection * arg)
{
if (m_position != arg) {
m_position = arg;
Q_EMIT positionChanged(arg);
}
}
void setVelocity(QQuickDirection * arg)
{
if (m_velocity != arg) {
m_velocity = arg;
Q_EMIT velocityChanged(arg);
}
}
void setAcceleration(QQuickDirection * arg)
{
if (m_acceleration != arg) {
m_acceleration = arg;
Q_EMIT accelerationChanged(arg);
}
}
void setRelative(bool arg)
{
if (m_relative != arg) {
m_relative = arg;
Q_EMIT relativeChanged(arg);
}
}
protected:
bool isAffectConnected();
bool affectParticle(QQuickParticleData *d, qreal dt) override;
private:
void affectProperties(const QList<QQuickParticleData*> &particles, qreal dt);
QQuickDirection * m_position;
QQuickDirection * m_velocity;
QQuickDirection * m_acceleration;
QQuickDirection m_nullVector;
bool m_relative;
};
QT_END_NAMESPACE
#endif // CUSTOMAFFECTOR_H
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