navhalfedgeblob.h

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/*
* Copyright 2015 Autodesk, Inc. All rights reserved.
* Use of this software is subject to the terms of the Autodesk license agreement and any attachments or Appendices thereto provided at the time of installation or download,
* or which otherwise accompanies this software in either electronic or hard copy form, or which is signed by you and accepted by Autodesk.
*/


#ifndef Navigation_NavHalfEdgeBlob_H
#define Navigation_NavHalfEdgeBlob_H

#include "gwnavruntime/navmesh/navmeshtypes.h"
#include "gwnavruntime/navmesh/identifiers/navhalfedgeptr.h"
#include "gwnavruntime/blob/baseblobbuilder.h"


namespace Kaim
{

class NavHalfEdgePtr;

// Blob to visual debug NavTriangle information.
class NavHalfEdgeBlob
{
public:
    enum ValidityStatus
    {
        VALID,
        INVALID
    };

    NavHalfEdgeBlob()
        : m_halfEdgeIdx(CompactNavHalfEdgeIdx_MAXVAL)
        , m_status((KyUInt16)INVALID)
    {}

    ValidityStatus GetValidityStatus() const { return (ValidityStatus)m_status; }

    Vec3f m_startPos3f;
    Vec3f m_endPos3f;
    CellPos m_cellPos; // The position of the cell that contains this triangle within the grid of PathData cells.
    CompactNavHalfEdgeIdx m_halfEdgeIdx;
    KyUInt16 m_status;
};

inline void SwapEndianness(Kaim::Endianness::Target e, NavHalfEdgeBlob& self)
{
    SwapEndianness(e, self.m_startPos3f);
    SwapEndianness(e, self.m_endPos3f);
    SwapEndianness(e, self.m_cellPos);
    SwapEndianness(e, self.m_halfEdgeIdx);
    SwapEndianness(e, self.m_status);
}


class NavHalfEdgeBlobBuilder : public BaseBlobBuilder<NavHalfEdgeBlob>
{
public:
    NavHalfEdgeBlobBuilder(const NavHalfEdgePtr& halfEdgePtr) : m_halfEdgePtr(halfEdgePtr) {}
private:
    void DoBuild()
    {
        if (IsWriteMode())
        {
            if (m_halfEdgePtr.IsValid() == false)
            {
                m_blob->m_status = (KyUInt16)NavHalfEdgeBlob::INVALID;
                return;
            }

            m_blob->m_halfEdgeIdx = (CompactNavHalfEdgeIdx)m_halfEdgePtr.GetHalfEdgeIdx();
            m_blob->m_cellPos = m_halfEdgePtr.GetCellPos();
            m_blob->m_status = (KyUInt16)NavHalfEdgeBlob::VALID;
            m_halfEdgePtr.GetVerticesPos3f(m_blob->m_startPos3f, m_blob->m_endPos3f);
        }
    }

    NavHalfEdgePtr m_halfEdgePtr;
};
}

#endif // Navigation_NavHalfEdgeBlob_H