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game/server/cstrike15/cs_nav_area.h

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+//========= Copyright <20> 1996-2005, Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//
+//=============================================================================//
+// nav_area.h
+// Navigation areas
+// Author: Michael S. Booth (mike@turtlerockstudios.com), January 2003
+
+#ifndef _CS_NAV_AREA_H_
+#define _CS_NAV_AREA_H_
+
+#include "nav_area.h"
+
+class CCSHidingSpot : public HidingSpot
+{
+public:
+	virtual ~CCSHidingSpot();
+	void SetOwningEntity( class CPointHidingSpot *pHidingSpotEnt );
+protected:
+	CPointHidingSpot *m_pOwningEntity;
+};
+
+
+//-------------------------------------------------------------------------------------------------------------------
+/**
+ * A CNavArea is a rectangular region defining a walkable area in the environment
+ */
+class CCSNavArea : public CNavArea
+{
+public:
+	DECLARE_CLASS( CCSNavArea, CNavArea );
+
+	CCSNavArea( void );
+	~CCSNavArea();
+
+	virtual void OnServerActivate( void );						// (EXTEND) invoked when map is initially loaded
+	virtual void OnRoundRestart( void );						// (EXTEND) invoked for each area when the round restarts
+
+	virtual void Draw( void ) const;							// draw area for debugging & editing
+
+	virtual void Save( CUtlBuffer &fileBuffer, unsigned int version ) const;	// (EXTEND)
+	virtual NavErrorType Load( CUtlBuffer &fileBuffer, unsigned int version, unsigned int subVersion );		// (EXTEND)
+	virtual NavErrorType PostLoad( void );								// (EXTEND) invoked after all areas have been loaded - for pointer binding, etc
+
+	virtual void CustomAnalysis( bool isIncremental = false );		// for game-specific analysis
+
+	virtual float GetDangerDecayRate( void ) const;				// return danger decay rate per second
+	virtual float GetEarliestOccupyTime( int teamID ) const OVERRIDE;			// returns the minimum time for someone of the given team to reach this spot from their spawn
+
+	// Use nav blockers in coop mode. There is a bug with these functions causing bots to lose
+	// their path at the start of rounds that is undiagnosed at the time of this comment. Coop needs nav blockers
+	// and doesn't (seem) to have any issues with blocked nav so let's leave it on for them
+	virtual void UpdateBlocked( bool force = false, int teamID = TEAM_ANY ) OVERRIDE;
+	// Updates the (un)blocked status of the nav area (throttled)
+	virtual bool IsBlocked( int teamID, bool ignoreNavBlockers = false ) const OVERRIDE;	
+
+
+	//- approach areas ----------------------------------------------------------------------------------
+	struct ApproachInfo
+	{
+		NavConnect here;										///< the approach area
+		NavConnect prev;										///< the area just before the approach area on the path
+        NavConnect next;										///< the area just after the approach area on the path
+		uint16 prevToHereHow;                                   // NavTraverseType
+		uint16 hereToNextHow;
+	};
+	const ApproachInfo *GetApproachInfo( int i ) const	{ return &m_approach[i]; }
+	int GetApproachInfoCount( void ) const				{ return m_approachCount; }
+	void ComputeApproachAreas( void );							///< determine the set of "approach areas" - for map learning
+
+	//- player counting --------------------------------------------------------------------------------
+	void ClearPlayerCount( void );								///< set the player count to zero
+
+protected:
+	NavErrorType LoadLegacy( CUtlBuffer &fileBuffer, unsigned int version, unsigned int subVersion );
+
+
+private:
+	//- approach areas ----------------------------------------------------------------------------------
+	enum { MAX_APPROACH_AREAS = 16 };
+	ApproachInfo m_approach[ MAX_APPROACH_AREAS ];
+	unsigned char m_approachCount;
+
+	unsigned char m_paddingToAlignTo128[ int( 0 - sizeof( CNavArea ) - ( sizeof( ApproachInfo ) * MAX_APPROACH_AREAS ) - sizeof( unsigned char ) ) & 127 ];
+};
+
+//--------------------------------------------------------------------------------------------------------------
+//--------------------------------------------------------------------------------------------------------------
+//
+// Inlines
+//
+
+inline void CCSNavArea::ClearPlayerCount( void )
+{
+#ifndef PLATFORM_64BITS
+	COMPILE_TIME_ASSERT( sizeof( CCSNavArea ) == 768 ); // legacy 32-bit struct was 768 bytes, preserving for compatibility
+#endif
+	for( int i=0; i<MAX_NAV_TEAMS; ++i )
+	{
+		m_playerCount[ i ] = 0;
+	}
+}
+
+#endif // _CS_NAV_AREA_H_