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// Copyright (C) 2021 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#ifndef QQUICK3DPARTICLEGRAVITY_H
#define QQUICK3DPARTICLEGRAVITY_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 <QtQuick3DParticles/private/qquick3dparticleaffector_p.h>
QT_BEGIN_NAMESPACE
class Q_QUICK3DPARTICLES_EXPORT QQuick3DParticleGravity : public QQuick3DParticleAffector
{
Q_OBJECT
Q_PROPERTY(float magnitude READ magnitude WRITE setMagnitude NOTIFY magnitudeChanged)
Q_PROPERTY(QVector3D direction READ direction WRITE setDirection NOTIFY directionChanged)
QML_NAMED_ELEMENT(Gravity3D)
QML_ADDED_IN_VERSION(6, 2)
public:
QQuick3DParticleGravity(QQuick3DNode *parent = nullptr);
float magnitude() const;
const QVector3D &direction() const;
public Q_SLOTS:
void setDirection(const QVector3D &direction);
void setMagnitude(float magnitude);
Q_SIGNALS:
void magnitudeChanged();
void directionChanged();
protected:
void affectParticle(const QQuick3DParticleData &sd, QQuick3DParticleDataCurrent *d, float time) override;
private:
float m_magnitude = 100.0f;
QVector3D m_direction = {0.0f, -1.0f, 0.0f};
QVector3D m_directionNormalized = {0.0f, -1.0f, 0.0f};
};
QT_END_NAMESPACE
#endif // QQUICK3DPARTICLEGRAVITY_H
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