184 lines
4.7 KiB
C++
184 lines
4.7 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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/*
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* Copyright (C) 2006-2010 - Frictional Games
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*
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* This file is part of HPL1 Engine.
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*/
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#ifndef HPL_SECTOR_VISIBILTY_H
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#define HPL_SECTOR_VISIBILTY_H
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#include "hpl1/engine/math/BoundingVolume.h"
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#include "hpl1/engine/math/Frustum.h"
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namespace hpl {
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class cPortal;
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class cSector;
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class cPortalContainer;
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class cSectorVisibilityContainer;
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enum eSectorVisibilityType {
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eSectorVisibilityType_BV,
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eSectorVisibilityType_Frustum,
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};
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//----------------------------------------------------
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/**
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* Represent the visibility for one portal
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*/
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class cPortalVisibility {
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public:
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cPortalVisibility();
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~cPortalVisibility();
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cShadowVolumeBV mShadow;
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cPortal *mpPortal;
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bool mbNullShadow;
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};
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//----------------------------------------------------
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/**
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* Represent the visibility from one sector to another
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* this may include several portals.
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*/
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class cPortalVisibilitySet {
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friend class cSectorVisibilityContainer;
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public:
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cPortalVisibilitySet(cSectorVisibilityContainer *apContainer, cPortalVisibilitySet *apParent);
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~cPortalVisibilitySet();
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cPortalVisibilitySet *GetParent() { return mpParent; }
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inline cPortalVisibility *GetVisibility(size_t alIdx) { return mvVisibility[alIdx]; }
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inline size_t GetVisibilityNum() { return mvVisibility.size(); }
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bool PortalExists(cPortal *apPortal);
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int AddPortalVisibility(cPortal *apPortal);
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private:
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Common::Array<cPortalVisibility *> mvVisibility;
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cPortalVisibilitySet *mpParent;
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cSectorVisibilityContainer *mpContainer;
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};
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//----------------------------------------------------
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/**
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* Represent the visibility of one sector.
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*/
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class cSectorVisibility {
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friend class cSectorVisibilityContainer;
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public:
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cSectorVisibility(cSectorVisibilityContainer *apContainer);
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~cSectorVisibility();
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bool PortalExists(cPortal *apPortal);
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cPortalVisibilitySet *GetSetConnectingFromSector(cSector *apSector);
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void AddVisibilitySet(cPortalVisibilitySet *apSet);
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cSector *GetSector() const { return mpSector; }
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bool IntersectionBV(cBoundingVolume *apBV);
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private:
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cSector *mpSector;
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Common::Array<cPortalVisibilitySet *> mvVisibiltySets;
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bool bStart;
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cSectorVisibilityContainer *mpContainer;
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};
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typedef Common::StableMap<cSector *, cSectorVisibility *> tSectorVisibilityMap;
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typedef tSectorVisibilityMap::iterator tSectorVisibilityMapIt;
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//----------------------------------------------------
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typedef Common::List<cPortalVisibilitySet *> tPortalVisibilitySetList;
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typedef tPortalVisibilitySetList::iterator tPortalVisibilitySetListIt;
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typedef Hpl1::Std::set<cSector *> tSectorSet;
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typedef tSectorSet::iterator tSectorSetIt;
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typedef cSTLMapIterator<cSectorVisibility *, tSectorVisibilityMap, tSectorVisibilityMapIt> tSectorVisibilityIterator;
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/**
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* Container of visibility of all the sectors.
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*/
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class cSectorVisibilityContainer {
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public:
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cSectorVisibilityContainer(eSectorVisibilityType aType);
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~cSectorVisibilityContainer();
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void SetFrustum(const cFrustum &aFrustum) { mFrustum = aFrustum; }
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void SetBV(const cBoundingVolume &aBV) { mBoundingVolume = aBV; }
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const cVector3f &GetOrigin() { return mvOrigin; }
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void Compute(cPortalContainer *apContainer);
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cPortalVisibilitySet *CreatePortalVisibiltySet(cPortalVisibilitySet *apParent);
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cSectorVisibility *GetSectorVisibilty(cSector *apSector);
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tSectorVisibilityIterator GetSectorIterator();
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bool IntersectionBV(cBoundingVolume *apBV, cPortalVisibilitySet *apSet);
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bool mbLog;
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private:
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void SearchSector(cSector *apSector, cPortalVisibilitySet *apParentSet, int alPortalIndex);
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tString GetTabs();
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// cPortalContainer *mpContainer;
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tSectorSet m_setStartSectors;
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tSectorVisibilityMap m_mapSectors;
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eSectorVisibilityType mType;
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tPortalVisibilitySetList mlstPortalVisibilty;
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cVector3f mvOrigin;
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cBoundingVolume mBoundingVolume;
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cFrustum mFrustum;
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int mlTabs;
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};
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//----------------------------------------------------
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} // namespace hpl
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#endif // HPL_SECTOR_VISIBILTY_H
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