1 files changed, 169 insertions, 0 deletions
diff --git a/game/server/ai_senses.h b/game/server/ai_senses.h
new file mode 100644
index 0000000..fed85eb
--- /dev/null
+++ b/game/server/ai_senses.h
@@ -0,0 +1,169 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose:
+//
+// $NoKeywords: $
+//=============================================================================//
+
+#ifndef AI_SENSES_H
+#define AI_SENSES_H
+
+#include "tier1/utlvector.h"
+#include "tier1/utlmap.h"
+#include "simtimer.h"
+#include "ai_component.h"
+#include "soundent.h"
+
+#if defined( _WIN32 )
+#pragma once
+#endif
+
+class CBaseEntity;
+class CSound;
+
+//-------------------------------------
+
+DECLARE_POINTER_HANDLE( AISightIter_t );
+DECLARE_POINTER_HANDLE( AISoundIter_t );
+
+// GetFirstSeenEntity can take these as optional parameters to search for 
+// a specific type of entity.
+enum seentype_t
+{
+	SEEN_ALL = -1,	// Default
+	SEEN_HIGH_PRIORITY = 0,
+	SEEN_NPCS,
+	SEEN_MISC
+};
+
+#define SENSING_FLAGS_NONE			0x00000000
+#define SENSING_FLAGS_DONT_LOOK		0x00000001 // Effectively makes the NPC blind
+#define SENSING_FLAGS_DONT_LISTEN	0x00000002 // Effectively makes the NPC deaf
+
+//-----------------------------------------------------------------------------
+// class CAI_ScriptConditions
+//
+// Purpose: 
+//-----------------------------------------------------------------------------
+
+class CAI_Senses : public CAI_Component
+{
+public:
+	CAI_Senses()
+	 : 	m_LookDist(2048),
+		m_LastLookDist(-1),
+		m_TimeLastLook(-1),
+		m_iAudibleList(0),
+		m_TimeLastLookHighPriority( -1 ),
+		m_TimeLastLookNPCs( -1 ),
+		m_TimeLastLookMisc( -1 )
+	{
+		m_SeenArrays[0] = &m_SeenHighPriority;
+		m_SeenArrays[1] = &m_SeenNPCs;
+		m_SeenArrays[2] = &m_SeenMisc;
+		m_iSensingFlags = SENSING_FLAGS_NONE;
+	}
+	
+	float			GetDistLook() const				{ return m_LookDist; }
+	void			SetDistLook( float flDistLook ) { m_LookDist = flDistLook; }
+
+	void			PerformSensing();
+
+	void			Listen( void );
+	void			Look( int iDistance );// basic sight function for npcs
+
+	bool			ShouldSeeEntity( CBaseEntity *pEntity ); // logical query
+	bool			CanSeeEntity( CBaseEntity *pSightEnt ); // more expensive cone & raycast test
+#ifdef PORTAL
+	bool			CanSeeEntityThroughPortal( const CProp_Portal *pPortal, CBaseEntity *pSightEnt ); // more expensive cone & raycast test
+#endif
+	
+	bool			DidSeeEntity( CBaseEntity *pSightEnt ) const; //  a less expensive query that looks at cached results from recent conditionsa gathering
+
+	CBaseEntity *	GetFirstSeenEntity( AISightIter_t *pIter, seentype_t iSeenType = SEEN_ALL ) const;
+	CBaseEntity *	GetNextSeenEntity( AISightIter_t *pIter ) const;
+
+	CSound *		GetFirstHeardSound( AISoundIter_t *pIter );
+	CSound *		GetNextHeardSound( AISoundIter_t *pIter );
+	CSound *		GetClosestSound( bool fScent = false, int validTypes = ALL_SOUNDS | ALL_SCENTS, bool bUsePriority = true );
+
+	bool 			CanHearSound( CSound *pSound );
+
+	//---------------------------------
+	
+	float			GetTimeLastUpdate( CBaseEntity *pEntity );
+
+	//---------------------------------
+
+	void			AddSensingFlags( int iFlags )		{ m_iSensingFlags |= iFlags; }
+	void			RemoveSensingFlags( int iFlags )	{ m_iSensingFlags &= ~iFlags; }
+	bool			HasSensingFlags( int iFlags )		{ return (m_iSensingFlags & iFlags) == iFlags; }
+
+	DECLARE_SIMPLE_DATADESC();
+
+private:
+	int				GetAudibleList() const { return m_iAudibleList; }
+
+	bool			WaitingUntilSeen( CBaseEntity *pSightEnt );
+
+	void			BeginGather();
+	void 			NoteSeenEntity( CBaseEntity *pSightEnt );
+	void			EndGather( int nSeen, CUtlVector<EHANDLE> *pResult );
+	
+	bool 			Look( CBaseEntity *pSightEnt );
+#ifdef PORTAL
+	bool 			LookThroughPortal( const CProp_Portal *pPortal, CBaseEntity *pSightEnt );
+#endif
+
+	int 			LookForHighPriorityEntities( int iDistance );
+	int 			LookForNPCs( int iDistance );
+	int 			LookForObjects( int iDistance );
+	
+	bool			SeeEntity( CBaseEntity *pEntity );
+	
+	float			m_LookDist;				// distance npc sees (Default 2048)
+	float			m_LastLookDist;
+	float			m_TimeLastLook;
+	
+	int				m_iAudibleList;				// first index of a linked list of sounds that the npc can hear.
+	
+	CUtlVector<EHANDLE> m_SeenHighPriority;
+	CUtlVector<EHANDLE> m_SeenNPCs;
+	CUtlVector<EHANDLE> m_SeenMisc;
+	
+	CUtlVector<EHANDLE> *m_SeenArrays[3];
+	
+	float			m_TimeLastLookHighPriority;
+	float			m_TimeLastLookNPCs;
+	float			m_TimeLastLookMisc;
+
+	int				m_iSensingFlags;
+};
+
+//-----------------------------------------------------------------------------
+
+class CAI_SensedObjectsManager : public IEntityListener
+{
+public:
+	void Init();
+	void Term();
+
+	CBaseEntity *	GetFirst( int *pIter );
+	CBaseEntity *	GetNext( int *pIter );
+
+	virtual void 	AddEntity( CBaseEntity *pEntity );
+
+private:
+	virtual void 	OnEntitySpawned( CBaseEntity *pEntity );
+	virtual void 	OnEntityDeleted( CBaseEntity *pEntity );
+
+	CUtlVector<EHANDLE> m_SensedObjects;
+};
+
+extern CAI_SensedObjectsManager g_AI_SensedObjectsManager;
+
+//-----------------------------------------------------------------------------
+
+
+
+#endif // AI_SENSES_H