navcellgenerator.h

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/*
* Copyright 2016 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.
*/

#pragma once

#include "gwnavruntime/navmesh/celldesc.h"
#include "gwnavgeneration/generator/cellgeneratorprofiling.h"
#include "gwnavruntime/blob/blobhandler.h"
#include "gwnavgeneration/containers/tlsarray.h"

namespace Kaim
{

class GeneratorSystem;
class DynamicRasterCell;
class DynamicNavRasterCell;
class NavCellHeightField;
class BoundaryGraph;
class InputCellBlob;
class GeneratorSectorBuilder;
class GeneratorSector;
class NavCellBlob;
class CellGenerator;
class NavTag;

// NavCellGenerator is where most of the effective generation algorithms are run.
class NavCellGenerator
{
    KY_DEFINE_NEW_DELETE_OPERATORS(Stat_Default_Mem)
public:
    NavCellGenerator(CellGenerator* cellGenerator, const KyArrayPOD<const InputCellBlob*>& inputCells);
    ~NavCellGenerator();

    // clears all the m_dynamic temporary data ...
    void ClearGenerationData();

    KyResult GenerateRawNavCell(BlobHandler<NavCellBlob>& handler);

    bool IsEmpty() const { return m_isEmpty; }

private:
    void ComputeUniqueNavTagArray();
    void AddUniqueNavTag(const NavTag& tag);
    KyUInt32 GetUniqueNavTagIndex(const NavTag& tag) const;

    KyResult GenerateRaster();
    KyResult GenerateNavRaster();
    KyResult GenerateHeightField();
    KyResult GenerateBoundaries();
    KyResult GenerateNavCellFromBoundaries();

    void BuildEmptyNavCellBlobIfNone();

private:
    // Allocated and maintained by the cellGenerator
    CellGenerator* m_cellGenerator;
    const KyArrayPOD<const InputCellBlob*>* m_inputCells;
    KyArrayTLS_POD<KyUInt32> m_connexIdxToNavTagIdxArray;
    KyArrayTLS_POD<const NavTag*> m_navTagArray; // Array of pointer is a bit weird but we have lifetime guarantees: point ot inputCells m_taggedTriangle3is m_navTag

    // dynamic (navgen) data. Allocated and maintained by the navcellGenerator
    DynamicRasterCell* m_dynamicRaster;
    DynamicNavRasterCell* m_dynamicNavRaster;
    NavCellHeightField* m_navcellHeightField;
    BoundaryGraph* m_boundaryGraph;

    bool m_isEmpty;

    BlobHandler<NavCellBlob>* m_navCellHandler;
};


}