qcollisionqueryresult_p.h

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// Copyright (C) 2015 Klaralvdalens Datakonsult AB (KDAB).

// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only

#ifndef QT3DRENDER_QCOLLISIONQUERYRESULT_P_H

#define QT3DRENDER_QCOLLISIONQUERYRESULT_P_H

//

//  W A R N I N G

//  -------------

//

// This file is not part of the Qt API.  It exists for the convenience

// of other Qt classes.  This header file may change from version to

// version without notice, or even be removed.

//

// We mean it.

//

#include <Qt3DRender/qt3drender_global.h>

#include <Qt3DCore/qnodeid.h>

#include <Qt3DCore/private/vector3d_p.h>

#include <QSharedData>

QT_BEGIN_NAMESPACE

namespace Qt3DRender {

namespace RayCasting {

typedef int QQueryHandle;

class QCollisionQueryResultPrivate;

class Q_3DRENDERSHARED_EXPORT QCollisionQueryResult

public:

    struct Hit {

        enum HitType {

            Entity,

            Point,

            Edge,

            Triangle

};

        Hit()

            : m_type(Entity)

            , m_distance(-1.f)

            , m_primitiveIndex(0)

            m_vertexIndex[0] = m_vertexIndex[1] = m_vertexIndex[2] = 0;

        Hit(Qt3DCore::QNodeId entity, const Vector3D &intersection, float distance, const Vector3D &uvw)

            : m_entityId(entity)

            , m_type(Entity)

            , m_intersection(intersection)

            , m_distance(distance)

            , m_primitiveIndex(0U)

            , m_uvw(uvw)

        Qt3DCore::QNodeId m_entityId;

        HitType m_type;

        Vector3D m_intersection;

        float m_distance;

        uint m_primitiveIndex;

        uint m_vertexIndex[3];

        Vector3D m_uvw;

};

    QCollisionQueryResult();

    QCollisionQueryResult(const QCollisionQueryResult &);

    ~QCollisionQueryResult();

    QCollisionQueryResult &operator=(const QCollisionQueryResult &);

#ifdef Q_COMPILER_RVALUE_REFS

    QCollisionQueryResult &operator=(QCollisionQueryResult &&other) noexcept

        swap(other);

        return *this;

#endif

    void swap(QCollisionQueryResult &other) noexcept

        qSwap(d_ptr, other.d_ptr);

    QQueryHandle handle() const;

    const std::vector<Hit> &hits() const;

    std::vector<Qt3DCore::QNodeId> entitiesHit() const;

private:

    friend class QAbstractCollisionQueryService;

    explicit QCollisionQueryResult(QCollisionQueryResultPrivate &p);

    QSharedDataPointer<QCollisionQueryResultPrivate> d_ptr;

    // Q_DECLARE_PRIVATE equivalent for shared data pointers

    QCollisionQueryResultPrivate *d_func();

    inline const QCollisionQueryResultPrivate *d_func() const

        return d_ptr.constData();

};

QT3D_DECLARE_TYPEINFO_2(Qt3DRender, RayCasting, QCollisionQueryResult::Hit, Q_PRIMITIVE_TYPE)

QT3D_DECLARE_SHARED_2(Qt3DRender, RayCasting, QCollisionQueryResult)

class QCollisionQueryResultPrivate : public QSharedData

public:

    explicit QCollisionQueryResultPrivate();

    explicit QCollisionQueryResultPrivate(const QCollisionQueryResultPrivate &copy);

    void setHandle(const QQueryHandle &handle);

    void addEntityHit(Qt3DCore::QNodeId entity, const Vector3D& intersection, float distance,

                      const Vector3D& uvw);

    QQueryHandle m_handle;

    std::vector<QCollisionQueryResult::Hit> m_hits;

};

inline bool operator==(const QCollisionQueryResult::Hit& left, const QCollisionQueryResult::Hit& right)

    return left.m_entityId == right.m_entityId;

} // RayCasting

} // Qt3DRender

QT_END_NAMESPACE

#endif // QT3DRENDER_QCOLLISIONQUERYRESULT_P_H