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// Copyright (C) 2021 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#ifndef QQUICK3DPARTICLEATTRACTOR_H
#define QQUICK3DPARTICLEATTRACTOR_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 <QtQuick3DParticles/private/qquick3dparticleaffector_p.h>
#include <QtQuick3DParticles/private/qquick3dparticleshape_p.h>
QT_BEGIN_NAMESPACE
class Q_QUICK3DPARTICLES_EXPORT QQuick3DParticleAttractor : public QQuick3DParticleAffector
{
Q_OBJECT
Q_PROPERTY(QVector3D positionVariation READ positionVariation WRITE setPositionVariation NOTIFY positionVariationChanged)
Q_PROPERTY(QQuick3DParticleAbstractShape *shape READ shape WRITE setShape NOTIFY shapeChanged)
Q_PROPERTY(int duration READ duration WRITE setDuration NOTIFY durationChanged)
Q_PROPERTY(int durationVariation READ durationVariation WRITE setDurationVariation NOTIFY durationVariationChanged)
Q_PROPERTY(bool hideAtEnd READ hideAtEnd WRITE setHideAtEnd NOTIFY hideAtEndChanged)
Q_PROPERTY(bool useCachedPositions READ useCachedPositions WRITE setUseCachedPositions NOTIFY useCachedPositionsChanged)
Q_PROPERTY(int positionsAmount READ positionsAmount WRITE setPositionsAmount NOTIFY positionsAmountChanged)
QML_NAMED_ELEMENT(Attractor3D)
QML_ADDED_IN_VERSION(6, 2)
public:
QQuick3DParticleAttractor(QQuick3DNode *parent = nullptr);
QVector3D positionVariation() const;
QQuick3DParticleAbstractShape *shape() const;
int duration() const;
int durationVariation() const;
bool hideAtEnd() const;
bool useCachedPositions() const;
int positionsAmount() const;
public Q_SLOTS:
void setPositionVariation(const QVector3D &positionVariation);
void setShape(QQuick3DParticleAbstractShape *shape);
void setDuration(int duration);
void setDurationVariation(int durationVariation);
void setHideAtEnd(bool hideAtEnd);
void setUseCachedPositions(bool useCachedPositions);
void setPositionsAmount(int positionsAmount);
Q_SIGNALS:
void positionVariationChanged();
void shapeChanged();
void durationChanged();
void durationVariationChanged();
void hideAtEndChanged();
void useCachedPositionsChanged();
void positionsAmountChanged();
protected:
void prepareToAffect() override;
void affectParticle(const QQuick3DParticleData &sd, QQuick3DParticleDataCurrent *d, float time) override;
private:
void updateShapePositions();
QQuick3DParticleAbstractShape *m_shape = nullptr;
QList<QVector3D> m_shapePositionList;
QVector3D m_centerPos;
QMatrix4x4 m_particleTransform;
bool m_shapeDirty = false;
int m_duration = -1;
int m_durationVariation = 0;
QVector3D m_positionVariation;
bool m_hideAtEnd = false;
bool m_useCachedPositions = true;
int m_positionsAmount = 0;
};
QT_END_NAMESPACE
#endif // QQUICK3DPARTICLEATTRACTOR_H
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