1HEADmaster

1 files changed, 183 insertions, 0 deletions

diff --git a/game/server/info_camera_link.cpp b/game/server/info_camera_link.cpp
new file mode 100644
index 0000000..bdc8a8c
--- /dev/null
+++ b/game/server/info_camera_link.cpp
@@ -0,0 +1,183 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+//=============================================================================//
+
+#include "cbase.h"
+
+#include "info_camera_link.h"
+#include "point_camera.h"
+#include "utllinkedlist.h"
+
+// memdbgon must be the last include file in a .cpp file!!!
+#include "tier0/memdbgon.h"
+
+
+//-----------------------------------------------------------------------------
+// Link between entities and cameras
+//-----------------------------------------------------------------------------
+class CInfoCameraLink : public CLogicalEntity
+{
+	DECLARE_CLASS( CInfoCameraLink, CLogicalEntity );
+ 	DECLARE_DATADESC();
+
+public:
+	CInfoCameraLink();
+	~CInfoCameraLink();
+
+	virtual void Activate();
+
+private:
+	void InputSetCamera(inputdata_t &inputdata);
+	void InputSetTargetEntity(inputdata_t &inputdata);
+	void SetCameraByName(const char *szName);
+
+	CHandle<CPointCamera> m_hCamera;
+	EHANDLE m_hTargetEntity;
+	string_t m_strPointCamera;
+
+	friend CBaseEntity *CreateInfoCameraLink( CBaseEntity *pTarget, CPointCamera *pCamera );
+	friend void PointCameraSetupVisibility( CBaseEntity *pPlayer, int area, unsigned char *pvs, int pvssize );
+};
+
+
+//-----------------------------------------------------------------------------
+// List of all info camera links
+//-----------------------------------------------------------------------------
+CUtlFixedLinkedList<CInfoCameraLink *> g_InfoCameraLinkList;
+
+
+//-----------------------------------------------------------------------------
+// Save/load
+//-----------------------------------------------------------------------------
+BEGIN_DATADESC( CInfoCameraLink )
+
+	DEFINE_KEYFIELD( m_strPointCamera, FIELD_STRING, "PointCamera" ),
+
+	DEFINE_FIELD( m_hCamera,		FIELD_EHANDLE ),
+	DEFINE_FIELD( m_hTargetEntity,	FIELD_EHANDLE ),
+
+	// Outputs
+	DEFINE_INPUTFUNC( FIELD_STRING, "SetCamera", InputSetCamera ),
+
+END_DATADESC()
+
+
+LINK_ENTITY_TO_CLASS( info_camera_link, CInfoCameraLink );
+
+
+//-----------------------------------------------------------------------------
+// Constructor, destructor
+//-----------------------------------------------------------------------------
+CInfoCameraLink::CInfoCameraLink()
+{		
+	g_InfoCameraLinkList.AddToTail( this );
+}
+
+CInfoCameraLink::~CInfoCameraLink()
+{
+	g_InfoCameraLinkList.FindAndRemove( this );
+}
+
+
+//-----------------------------------------------------------------------------
+// Purpose: Called after all entities have spawned and after a load game.
+//-----------------------------------------------------------------------------
+void CInfoCameraLink::Activate()
+{
+	BaseClass::Activate();
+
+	// Checks necessary to prevent interference with CreateInfoCameraLink
+	if ( !m_hCamera )
+	{
+		SetCameraByName( STRING(m_strPointCamera) );
+	}
+
+	if ( !m_hTargetEntity )
+	{
+		m_hTargetEntity = gEntList.FindEntityByName( NULL, STRING(m_target) );
+	}
+}
+
+void CInfoCameraLink::SetCameraByName(const char *szName)
+{
+	CBaseEntity *pBaseEnt = gEntList.FindEntityByName( NULL, szName );
+	if( pBaseEnt )
+	{
+		m_hCamera = dynamic_cast<CPointCamera *>( pBaseEnt );
+		if ( m_hCamera )
+		{
+			// Keep the camera name consistent for save/load
+			m_strPointCamera = MAKE_STRING( szName );
+		}
+	}
+}
+
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+void CInfoCameraLink::InputSetCamera(inputdata_t &inputdata)
+{
+	SetCameraByName( inputdata.value.String() );
+}
+
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+CBaseEntity *CreateInfoCameraLink( CBaseEntity *pTarget, CPointCamera *pCamera )
+{
+	CInfoCameraLink *pInfoCameraLink = (CInfoCameraLink*)CreateEntityByName( "info_camera_link" );
+	if ( !pInfoCameraLink )
+		return NULL;
+
+	pInfoCameraLink->m_hCamera = pCamera;
+	pInfoCameraLink->m_hTargetEntity = pTarget;
+	pInfoCameraLink->Spawn();
+	return pInfoCameraLink;
+}
+
+
+//-----------------------------------------------------------------------------
+// Sets up visibility 
+//-----------------------------------------------------------------------------
+void PointCameraSetupVisibility( CBaseEntity *pPlayer, int area, unsigned char *pvs, int pvssize )
+{
+	for ( CPointCamera *pCameraEnt = GetPointCameraList(); pCameraEnt != NULL; pCameraEnt = pCameraEnt->m_pNext )
+	{
+		pCameraEnt->SetActive( false );
+	}
+	
+	int nNext;
+	for ( int i = g_InfoCameraLinkList.Head(); i != g_InfoCameraLinkList.InvalidIndex(); i = nNext )
+	{
+		nNext = g_InfoCameraLinkList.Next( i );
+
+		CBaseEntity *pTargetEnt = g_InfoCameraLinkList[i]->m_hTargetEntity;
+		if ( !pTargetEnt )
+		{
+			UTIL_Remove( g_InfoCameraLinkList[i] );
+			continue;
+		}
+
+		// Don't bother if it's not visible
+		if ( pTargetEnt->IsEffectActive( EF_NODRAW ) )
+			continue;
+
+		if ( !pTargetEnt->NetworkProp()->IsInPVS( pPlayer->edict(), pvs, pvssize ) )
+			continue;
+
+		if ( engine->CheckAreasConnected( area, pTargetEnt->NetworkProp()->AreaNum() ) )
+		{
+			CPointCamera *pCameraEnt = g_InfoCameraLinkList[i]->m_hCamera;
+			if ( pCameraEnt )
+			{
+				engine->AddOriginToPVS( pCameraEnt->GetAbsOrigin() );
+				pCameraEnt->SetActive( true );
+			}
+		}
+	}
+}
+