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// Copyright (C) 2021 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#ifndef QQUICK3DPARTICLEMODELSHAPE_H
#define QQUICK3DPARTICLEMODELSHAPE_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 "qquick3dparticleabstractshape_p.h"
#include <QVector3D>
QT_BEGIN_NAMESPACE
class QQuick3DModel;
class QQmlComponent;
class Q_QUICK3DPARTICLES_EXPORT QQuick3DParticleModelShape : public QQuick3DParticleAbstractShape
{
Q_OBJECT
Q_PROPERTY(bool fill READ fill WRITE setFill NOTIFY fillChanged)
Q_PROPERTY(QQmlComponent *delegate READ delegate WRITE setDelegate NOTIFY delegateChanged)
QML_NAMED_ELEMENT(ParticleModelShape3D)
QML_ADDED_IN_VERSION(6, 2)
public:
QQuick3DParticleModelShape(QObject *parent = nullptr);
~QQuick3DParticleModelShape() override;
bool fill() const;
QQmlComponent *delegate() const;
public Q_SLOTS:
void setFill(bool fill);
void setDelegate(QQmlComponent *delegate);
// Returns point inside this shape
QVector3D getPosition(int particleIndex) override;
QVector3D getSurfaceNormal(int particleIndex) override;
Q_SIGNALS:
void fillChanged();
void delegateChanged();
private:
QVector3D randomPositionModel(int particleIndex);
void createModel();
void clearModelVertexPositions();
void calculateModelVertexPositions();
QQmlComponent *m_delegate = nullptr;
QQuick3DModel *m_model = nullptr;
QVector<QVector3D> m_vertexPositions;
float m_modelTriangleAreasSum = 0;
QVector<float> m_modelTriangleAreas;
QVector3D m_modelTriangleCenter;
QVector3D m_cachedNormal;
int m_cachedIndex = -1;
bool m_fill = true;
};
QT_END_NAMESPACE
#endif // QQUICK3DPARTICLEMODELSHAPE_H
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