navrastercell.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/base/endianness.h"
#include "gwnavruntime/basesystem/coordsystem.h"
#include "gwnavruntime/navmesh/pixelandcellgrid.h"
#include "gwnavruntime/blob/blobarray.h"
#include "gwnavruntime/math/triangle3i.h"
#include "gwnavruntime/navmesh/celldesc.h"
#include "gwnavruntime/containers/stringstream.h"
#include "gwnavgeneration/generator/generatorblobtyperegistry.h"
#include "gwnavgeneration/navraster/navrastertypes.h"

namespace Kaim
{

inline KyUInt32 GetFeatureMask(KyUInt32 featureBitField, CardinalDir dir)
{
    KyUInt32 bitshift = dir * 8;
    return ((0xFF << bitshift) & featureBitField) >> bitshift;
}

inline void AddFeatureMask(KyUInt32& featureBitField, CardinalDir dir, NavRasterFeatureMask feature)
{
    featureBitField |= (feature << (dir * 8));
}

class NavRasterPixel
{
public:
    NavRasterPixel();

    KyUInt32 GetFeatureMask(CardinalDir dir) const { return Kaim::GetFeatureMask(m_featureBitField, dir); }
    KyUInt32 GetNeighborFloorIndex(CardinalDir dir) const { return m_neighborFloorIdx[dir]; }

public:
    KyFloat32 m_altitude;
    PixelColor m_floorColor;
    KyUInt32 m_connexIdx;
    KyUInt32 m_connectedComponentIdx;
    KyUInt32 m_navTagIdx;
    KyUInt32 m_featureBitField; // among NavRasterFeatureMask enum values

    // connections are indexed as follow:
    //  +-----------+
    //  |     1     |
    //  |           |
    //  |2    +    0|
    //  |           |
    //  |     3     |
    //  +-----------+
    //0 corresponds to East (+1;0) and index increases CCW
    //Stores level index of neighbor position if reachable, NavRaster_NoConnection otherwise
    NavRasterFloorIdx m_neighborFloorIdx[4];

    KyUInt32 m_propagationId;
};
inline void SwapEndianness(Endianness::Target e, NavRasterPixel& self)
{
    SwapEndianness(e, self.m_altitude);
    SwapEndianness(e, self.m_floorColor);
    SwapEndianness(e, self.m_connexIdx);
    SwapEndianness(e, self.m_connectedComponentIdx);
    SwapEndianness(e, self.m_navTagIdx);
    SwapEndianness(e, self.m_featureBitField);
    SwapEndianness(e, self.m_neighborFloorIdx[0]);
    SwapEndianness(e, self.m_neighborFloorIdx[1]);
    SwapEndianness(e, self.m_neighborFloorIdx[2]);
    SwapEndianness(e, self.m_neighborFloorIdx[3]);
    SwapEndianness(e, self.m_propagationId);
}

class NavRasterColumn
{
    KY_CLASS_WITHOUT_COPY(NavRasterColumn);
public:
    NavRasterColumn() {}

    BlobArray<NavRasterPixel> m_navRasterPoints;
};
inline void SwapEndianness(Endianness::Target e, NavRasterColumn& self)
{
    SwapEndianness(e, self.m_navRasterPoints);
}


class NavRasterCell
{
    KY_ROOT_BLOB_CLASS(Generator, NavRasterCell, 1)
public:
    KyFloat32 m_rasterPrecision;
    PixelAndCellGrid m_pixelAndCellGrid;
    CellDesc m_cellDesc;
    BlobArray<NavRasterColumn> m_columns; // row major
};
inline void SwapEndianness(Endianness::Target e, NavRasterCell& self)
{
    SwapEndianness(e, self.m_rasterPrecision);
    SwapEndianness(e, self.m_pixelAndCellGrid);
    SwapEndianness(e, self.m_cellDesc);
    SwapEndianness(e, self.m_columns);
}

KY_INLINE NavRasterPixel::NavRasterPixel()
  : m_altitude(0.f)
  , m_floorColor(PixelColor_Unset)
  , m_connexIdx(KyUInt32MAXVAL)
  , m_connectedComponentIdx(KyUInt32MAXVAL)
  , m_navTagIdx(KyUInt32MAXVAL)
  , m_featureBitField(0)
  , m_propagationId(KyUInt32MAXVAL)
{
    for (KyUInt32 i = 0; i < 4; ++i)
        m_neighborFloorIdx[i] = NavRasterFloorIdx_Invalid;
}


}