53 lines
1.6 KiB
C
53 lines
1.6 KiB
C
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//========= Copyright <20> 1996-2009, Valve Corporation, All rights reserved. ============//
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//
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// Purpose: stores all line occlusions ( horizontal slices ) for the tri soup for the Fog of War
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//
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// $NoKeywords: $
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//=====================================================================================//
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#ifndef FOW_TRISOUP_H
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#define FOW_TRISOUP_H
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#if defined( COMPILER_MSVC )
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#pragma once
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#endif
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#include "utlvector.h"
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#include "mathlib/vector.h"
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class CFoW;
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class CFoW_Viewer;
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class CFoW_LineOccluder;
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class CFoW_TriSoupCollection
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{
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public:
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// constructor to init this collection with the id
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CFoW_TriSoupCollection( unsigned nID );
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// destructor to dealloc the occluders
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~CFoW_TriSoupCollection( void );
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// clears all entries from the collection ( useful for hammer editing only )
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void Clear( void );
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// adds a tri to the collection. this is immediately split up into the horizontal slices. very slow!
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void AddTri( CFoW *pFoW, Vector &vPointA, Vector &vPointB, Vector &vPointC );
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// adds all occluders back into the visibility tree
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void RepopulateOccluders( CFoW *pFoW );
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// void ObstructViewer( CFoW *FoW, CFoW_Viewer *Viewer );
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//
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int GetNumOccluders( ) { return m_Occluders.Count(); }
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//
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CFoW_LineOccluder *GetOccluder( int nIndex ) { return m_Occluders[ nIndex ]; }
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private:
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// attempt to split the tri horizontally given the distance / offset from z 0.0
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int HorizontalSplitTri( Vector *pInVerts, int nVertCount, Vector *pOutVerts, float flDist, float flOnPlaneEpsilon );
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CUtlVector< CFoW_LineOccluder * > m_Occluders;
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};
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#endif // FOW_TRISOUP_H
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