polygonbuilder.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/kernel/SF_Alg.h"
#include "gwnavruntime/base/memory.h"
#include "gwnavruntime/dynamicnavmesh/dynamicnavmeshquerytypes.h"
#include "gwnavruntime/containers/bitfield.h"
#include "gwnavruntime/math/closedcontour.h"
#include "gwnavruntime/querysystem/workingmemcontainers/workingmemarray.h"

namespace Kaim
{

class DisplayList;
class WorkingMemory;
class DynamicNavMeshQuery;

class PolygonBuilder
{
    KY_DEFINE_NEW_DELETE_OPERATORS(Stat_Default_Mem)
public:
    PolygonBuilder(DynamicNavMeshQuery* query): m_query(query) {}

    KyResult Init(WorkingMemory* workingMemory);
    enum BuildStatus { BuildDone, BuildInPRocess };
    KyResult Build(WorkingMemory* workingMemory, KyArray<MergedPolygonWithHoles>& result, BuildStatus& buildStatus);

public:
    void RenderInput(WorkingMemory* workingMemory, KyFloat32 rasterPrecision, const Vec2i& cellOffset, DisplayList& displayList);
    void RenderOutput(WorkingMemory* workingMemory, const KyArray<MergedPolygonWithHoles>& output, KyFloat32 rasterPrecision, const Vec2i& cellOffset, DisplayList& displayList);

private:
    KyResult ExtractRawPolygons(WorkingMemory* workingMemory, BuildStatus& buildStatus);
    KyResult ComputePolygonWinding(WorkingMemory* workingMemory);
    KyResult BindHoles(WorkingMemory* workingMemory);
    KyResult BuildOutput(WorkingMemory* workingMemory, KyArray<MergedPolygonWithHoles>& result);

private:
    DynamicNavMeshQuery* m_query;
};

} // namespace Kaim