navfloortonavgraphlinks.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/navgraph/navgraphlink.h"
#include "gwnavruntime/containers/bitfieldutils.h"

namespace Kaim
{

class NavGraphLink;
class NavGraphVertexRawPtr;

typedef TrackedCollection<NavGraphLink*, MemStat_NavData> NavGraphLinkCollection;

class NavFloorToNavGraphLinks
{
    KY_DEFINE_NEW_DELETE_OPERATORS(Stat_Default_Mem)

public:
    static KY_INLINE KyUInt32 GetNumberOfWordsForTriangleLinkStatus(KyUInt32 numberOfTriangle) { return BitFieldUtils::GetWordsCount(numberOfTriangle); }

public:
    NavFloorToNavGraphLinks();
    ~NavFloorToNavGraphLinks();

    void Clear();
    KyUInt32 GetCount() const;
    NavGraphLink* GetNavGraphLink(KyUInt32 index);
    const NavGraphLink* GetNavGraphLink(KyUInt32 index) const;

    void AddNavGraphLink(NavGraphLink* navGraphlinkToAdd);
    void RemoveNavGraphLink(NavGraphLink* navGraphlinkToRemove);

    bool IsTriangleLinkedToGraph(NavTriangleIdx navTriangleIdx) const;
    void SetTriangleAsLinked(NavTriangleIdx navTriangleIdx);
    void SetTriangleAsNotLinked(NavTriangleIdx navTriangleIdx);
    void SetAllTriangleAsNotLinked(KyUInt32 triangleCount);

    void SetOffsetForTriangleLinkStatus(char* memoryStartForStatus, KyUInt32 triangleCount);

    void OnNavFloorDeActivate(KyUInt32 navFloorTriangleCount);
private:
    KyUInt32* GetBitFieldWords();
    const KyUInt32* GetBitFieldWords() const;
public:
    KyInt32 m_offsetToBitField; // KyUInt32* bitfiled = (KyUInt32*)this + m_offsetToBitField
    NavGraphLinkCollection m_navGraphLinks;
};

KY_INLINE NavFloorToNavGraphLinks::NavFloorToNavGraphLinks() : m_offsetToBitField(KyInt32MAXVAL) {}
KY_INLINE NavFloorToNavGraphLinks::~NavFloorToNavGraphLinks() { Clear(); }

KY_INLINE void NavFloorToNavGraphLinks::Clear() { m_navGraphLinks.Clear(); }
KY_INLINE KyUInt32 NavFloorToNavGraphLinks::GetCount() const { return m_navGraphLinks.GetCount(); }
KY_INLINE NavGraphLink* NavFloorToNavGraphLinks::GetNavGraphLink(KyUInt32 index) { return m_navGraphLinks[index]; }
KY_INLINE const NavGraphLink* NavFloorToNavGraphLinks::GetNavGraphLink(KyUInt32 index) const { return m_navGraphLinks[index]; }

KY_INLINE void NavFloorToNavGraphLinks::AddNavGraphLink(NavGraphLink* navGraphlinkToAdd)
{
    KY_DEBUG_ERRORN_IF(m_navGraphLinks.DoesContain(navGraphlinkToAdd),            ("this link already exists"));
    KY_LOG_ERROR_IF(navGraphlinkToAdd->m_navTriangleRawPtr.IsValid() == false,    ("this link is not valid"));
    KY_LOG_ERROR_IF(navGraphlinkToAdd->m_navGraphVertexRawPtr.IsValid() == false, ("this link is not valid"));
    m_navGraphLinks.PushBack(navGraphlinkToAdd);
    SetTriangleAsLinked(navGraphlinkToAdd->m_navTriangleRawPtr.GetTriangleIdx());
}

KY_INLINE bool NavFloorToNavGraphLinks::IsTriangleLinkedToGraph(NavTriangleIdx navTriangleIdx) const { return BitFieldUtils::IsBitSet(GetBitFieldWords(), navTriangleIdx); }
KY_INLINE void NavFloorToNavGraphLinks::SetTriangleAsLinked(NavTriangleIdx navTriangleIdx) { BitFieldUtils::SetBit(GetBitFieldWords(), navTriangleIdx); }
KY_INLINE void NavFloorToNavGraphLinks::SetTriangleAsNotLinked(NavTriangleIdx navTriangleIdx) { BitFieldUtils::UnsetBit(GetBitFieldWords(), navTriangleIdx); }
KY_INLINE void NavFloorToNavGraphLinks::SetAllTriangleAsNotLinked(KyUInt32 triangleCount)
{
    memset(GetBitFieldWords(), 0, sizeof(KyUInt32) * GetNumberOfWordsForTriangleLinkStatus(triangleCount));
}

KY_INLINE void NavFloorToNavGraphLinks::SetOffsetForTriangleLinkStatus(char* memoryStartForStatus, KyUInt32 triangleCount)
{
    m_offsetToBitField = (KyInt32)(memoryStartForStatus - (char*)this);
    SetAllTriangleAsNotLinked(triangleCount);
}

KY_INLINE KyUInt32* NavFloorToNavGraphLinks::GetBitFieldWords() { return (KyUInt32*)((char*)this + m_offsetToBitField); }
KY_INLINE const KyUInt32* NavFloorToNavGraphLinks::GetBitFieldWords() const { return (const KyUInt32*)((const char*)this + m_offsetToBitField); }

}