92 lines
3.6 KiB
C
92 lines
3.6 KiB
C
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//========= Copyright <20> 1996-2009, Valve Corporation, All rights reserved. ============//
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//
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// Purpose: a localized viewer for the Fog of War
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//
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// $NoKeywords: $
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//=====================================================================================//
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#ifndef FOW_VIEWER_H
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#define FOW_VIEWER_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 "mathlib/vector.h"
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class CFoW;
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class CFoW_Viewer
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{
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public:
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// constructor to init this viewer with the id and temp
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CFoW_Viewer( int nID, unsigned nViewerTeam );
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// destructor to free up the local vis grids
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~CFoW_Viewer( void );
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// update the radius of the viewer. this will realloc the local vis grids
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void UpdateSize( CFoW *pFoW, float flRadius );
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// update the location of the viewer
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bool UpdateLocation( CFoW *pFoW, const Vector &vLocation, Vector *pvOldLocation );
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// update the height group of this viewer
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void UpdateHeightGroup( uint8 nHeightGroup );
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//
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inline void Dirty( ) { m_bDirty = true; }
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//
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inline bool IsDirty( ) { return m_bDirty; }
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// get the team the viewer is on
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inline unsigned GetTeam( void ) { return m_nViewerTeam; }
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// get the radius of the viewer
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inline float GetSize( void ) { return m_flRadius; }
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// get the grid-centered location of the viewer
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inline Vector &GetLocation( void ) { return m_vLocation; }
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// get the real location of the viewer
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inline Vector &GetRealLocation( void ) { return m_vRealLocation; }
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// get the height group of the viewer
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inline uint8 GetHeightGroup( void ) { return m_nHeightGroup; }
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// get the grid units of the local vis. ( diameter / horizontal grid size ) rounded up
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inline int GetGridUnits( void ) { return m_nGridUnits; }
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// get the local visibility grid
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inline byte *GetVisibility( void ) { return m_pVisibility; }
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// get the visibility radius grid
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inline int *GetVisibilityRadius( void ) { return m_pVisibilityRadius; }
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// get the grid units of the radius grid ( circumference / horizontal grid size ) rounded up
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inline int GetRadiusUnits( void ) { return m_nRadiusUnits; }
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// get the upper left coords of this viewer
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void GetStartPosition( Vector2D &vResults );
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// get the lower right coords of this viewer
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void GetEndPosition( Vector2D &vResults );
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// calculate the localized visibility against all occluders.
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void CalcLocalizedVisibility( CFoW *pFoW );
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// clear the localized radius grid to the maximum distance
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void DefaultViewingRadius( CFoW *pFoW );
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//
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void DrawDebugInfo( Vector &vLocation, float flViewRadius, unsigned nFlags );
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//
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size_t GetAllocatedMemory( ) { return m_nAllocatedMemory; }
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private:
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// clear the localized visibility grid to just the raw radius
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void DefaultViewingArea( CFoW *pFoW );
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// turn the radius grid into the localized visibility grid
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void ResolveRadius( CFoW *pFoW );
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int m_nID; // the id of this viewer
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unsigned m_nViewerTeam; // the team this viewer belongs to
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float m_flRadius; // the radius of this viewer
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Vector m_vLocation; // the grid location of this viewer
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Vector m_vRealLocation; // the real location of this viewer
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byte *m_pVisibility; // the localized visibility grid
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int m_nGridUnits; // the grid units ( diameter / horizontal grid size ) rounded up
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int *m_pVisibilityRadius; // the localized visibility depth circle
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int m_nRadiusUnits; // the grid units of the radius grid ( circumference / horizontal grid size ) rounded up
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int *m_pVisibilityTable; // the visibility table to go from grid to radius
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bool m_bDirty; //
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uint8 m_nHeightGroup; // the height group this viewer belongs to
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size_t m_nAllocatedMemory; //
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};
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#endif // FOW_VIEWER_H
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