spatializedsectorinput.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/navmeshtypes.h"
#include "gwnavruntime/base/kyguid.h"
#include "gwnavruntime/kernel/SF_String.h"
#include "gwnavgeneration/common/densegrid.h"
#include "gwnavgeneration/input/dynamicinputcell.h"


namespace Kaim
{

class GeneratorSystem;
class Triangle3i;
class TaggedTriangle3i;
class SectorInputData;

/*
cells are indexed this way
  |     |     |     |     |
--+-----+-----+-----+-----+--
  |-2, 1|-1, 1| 0, 1| 1, 1|
  |     |     |     |     |
--+-----+-----+-----+-----+--
  |-2, 0|-1, 0| 0, 0| 1, 0|
  |     |     |     |     |
--+-----+-----#-----+-----+--
  |-2,-1|-1,-1| 0,-1| 1,-1|
  |     |     |     |     |
--+-----+-----+-----+---- +--
  |-2,-2|-1,-2| 0,-2| 1,-2|
  |     |     |     |     |
--+-----+-----+-----+-----+--
  |     |     |     |     |

a cell contains at least all triangles that intersect with
[cell_min - enlargement, cell_max + enlargement]
  |     |     |     |
  |   +---------+   |
--+---|-+-----+-|---+--
  |   | |     | |   |
  |   | |     | |   |
--+---|-+-----+-|---+--
  |   +---------+   |
  |     |     |     |
              >-<
               enlargement
*/

class DynInputCellArrayAtTilePos
{
    KY_DEFINE_NEW_DELETE_OPERATORS(MemStat_NavDataGen)
public:
    DynInputCellArrayAtTilePos(KyInt32 x, KyInt32 y) : m_x(x), m_y(y) {}
    KyArrayPOD<DynamicInputCell*> m_dynInputCells;
    KyInt32 m_x;
    KyInt32 m_y;
};

// tile part filenames at tilePos (x, y)
class TilePartFileNameArrayAtTilePos
{
    KY_DEFINE_NEW_DELETE_OPERATORS(MemStat_NavDataGen)
public:
    TilePartFileNameArrayAtTilePos(KyInt32 x, KyInt32 y) : m_x(x), m_y(y) {}
    KyArray<String> m_filenames;
    KyInt32 m_x;
    KyInt32 m_y;
};

// Spatializes the input triangles into m_dynInputCellGrid.
// SpatializedSectorInput is a member of ClientInputConsumer. So there is one SpatializedSectorInput per Sector.
// Note that ClientInputConsumer is instantiated on the stack in GeneratorSectorBuilder::ProduceInputs().
// SpatializedSectorInput is just a temporary data, once production/consumption of the inputs are done,
// inputs reside in SectorInput (for each Sector).
// if Tiling is enabled
//     DynamicInputCells are spatialized into m_dynInputCellArrayTileGrid;
//     When a given number of triangles are pushed, m_dynInputCellGrid and m_dynInputCellArrayTileGrid
//     are copied to tilePart files referenced by m_tilePartFileNameArrayTileGrid
class SpatializedSectorInput
{
    KY_DEFINE_NEW_DELETE_OPERATORS(MemStat_NavDataGen)

public:
    SpatializedSectorInput(GeneratorSystem* sys);

    ~SpatializedSectorInput() { ClearAll(); }

    void SetName(const String& name) { m_sectorName = name; }

    void SetInputTileFlushSize(KyUInt32 inputTileFlushSize) { m_inputTilesFlushSize = inputTileFlushSize; }

    void ClearAll()
    {
        ClearCellAndTileGrids();
        ClearFlushedTiledFileNames();
    }

    void ClearCellAndTileGrids();

    void ClearFlushedTiledFileNames();

    void PushTriangle(const DynamicTaggedTriangle3i& inputTriangle);

    DynamicInputCell* GetCell(CellCoord x, CellCoord y) { return m_dynInputCellGrid.Get(x, y); }

    DynamicInputCell** GetCells() { return m_dynInputCellGrid.GetElements(); }

    KyUInt32 GetCellsCount() const { return m_dynInputCellGrid.GetElementsCount(); }

    KyResult FlushTiles();

    void RemovePartsTempDirectory();

private:
    String GetTilePartDirName();
    String GetTilePartFileName(KyInt32 x, KyInt32 y, KyUInt32 partIndex);

public:
    GeneratorSystem* m_sys;

    KyUInt32 m_inputTilesPushedSize; // in bytes. If a triangle overlap 4 cells, then it will be pushed 4 times
    KyUInt32 m_inputTilesFlushSize; // in bytes

    DenseGridAndArrayOfRawPtr<DynamicInputCell> m_dynInputCellGrid;

    DenseGridAndArrayOfRawPtr<DynInputCellArrayAtTilePos>     m_dynInputCellArrayTileGrid;     // grid of m_nbCellsByInputTile * cellSize
    DenseGridAndArrayOfRawPtr<TilePartFileNameArrayAtTilePos> m_tilePartFileNameArrayTileGrid; // grid of m_nbCellsByInputTile * cellSize. Saves the parts saved so far.

    KyGuid m_sectorGuid;
    String m_sectorName;
};

}