From 39ed87570bdb2f86969d4be821c94b722dc71179 Mon Sep 17 00:00:00 2001
From: Joe Ludwig <joe@valvesoftware.com>
Date: Wed, 26 Jun 2013 15:22:04 -0700
Subject: First version of the SOurce SDK 2013

---
 mp/src/game/server/func_areaportal.cpp | 191 +++++++++++++++++++++++++++++++++
 1 file changed, 191 insertions(+)
 create mode 100644 mp/src/game/server/func_areaportal.cpp

(limited to 'mp/src/game/server/func_areaportal.cpp')

diff --git a/mp/src/game/server/func_areaportal.cpp b/mp/src/game/server/func_areaportal.cpp
new file mode 100644
index 00000000..b8893e30
--- /dev/null
+++ b/mp/src/game/server/func_areaportal.cpp
@@ -0,0 +1,191 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: area portal entity: toggles visibility areas on/off
+//
+// NOTE: These are not really brush entities.  They are brush entities from a 
+// designer/worldcraft perspective, but by the time they reach the game, the 
+// brush model is gone and this is, in effect, a point entity.
+//
+// $NoKeywords: $
+//=============================================================================//
+
+#include "cbase.h"
+#include "func_areaportalbase.h"
+
+// memdbgon must be the last include file in a .cpp file!!!
+#include "tier0/memdbgon.h"
+
+enum areaportal_state
+{
+	AREAPORTAL_CLOSED = 0,
+	AREAPORTAL_OPEN = 1,
+};
+
+
+class CAreaPortal : public CFuncAreaPortalBase
+{
+public:
+	DECLARE_CLASS( CAreaPortal, CFuncAreaPortalBase );
+
+					CAreaPortal();
+
+	virtual void	Spawn( void );
+	virtual void	Precache( void );
+	virtual void	Use( CBaseEntity *pActivator, CBaseEntity *pCaller, USE_TYPE useType, float value );
+	virtual bool	KeyValue( const char *szKeyName, const char *szValue );
+	virtual int		UpdateTransmitState();
+
+	// Input handlers
+	void InputOpen( inputdata_t &inputdata );
+	void InputClose( inputdata_t &inputdata );
+	void InputToggle( inputdata_t &inputdata );
+
+	virtual bool	UpdateVisibility( const Vector &vOrigin, float fovDistanceAdjustFactor, bool &bIsOpenOnClient );
+
+	DECLARE_DATADESC();
+
+private:
+	bool	UpdateState( void );
+
+	int		m_state;
+};
+
+LINK_ENTITY_TO_CLASS( func_areaportal, CAreaPortal );
+
+BEGIN_DATADESC( CAreaPortal )
+
+	DEFINE_KEYFIELD( m_portalNumber, FIELD_INTEGER, "portalnumber" ),
+	DEFINE_FIELD( m_state, FIELD_INTEGER ),
+
+	// Inputs
+	DEFINE_INPUTFUNC( FIELD_VOID, "Open",  InputOpen ),
+	DEFINE_INPUTFUNC( FIELD_VOID, "Close", InputClose ),
+	DEFINE_INPUTFUNC( FIELD_VOID, "Toggle",  InputToggle ),
+
+	// TODO: obsolete! remove	
+	DEFINE_INPUTFUNC( FIELD_VOID, "TurnOn",  InputClose ),
+	DEFINE_INPUTFUNC( FIELD_VOID, "TurnOff", InputOpen ),
+
+END_DATADESC()
+
+
+
+CAreaPortal::CAreaPortal()
+{
+	m_state = AREAPORTAL_OPEN;
+}
+
+
+void CAreaPortal::Spawn( void )
+{
+	AddEffects( EF_NORECEIVESHADOW | EF_NOSHADOW );
+	Precache();
+}
+
+
+//-----------------------------------------------------------------------------
+// Purpose: notify the engine of the state at startup/restore
+//-----------------------------------------------------------------------------
+void CAreaPortal::Precache( void )
+{
+	UpdateState();
+}
+
+
+//------------------------------------------------------------------------------
+// Purpose :
+//------------------------------------------------------------------------------
+void CAreaPortal::InputClose( inputdata_t &inputdata )
+{
+	m_state = AREAPORTAL_CLOSED;
+	UpdateState();
+}
+
+
+//------------------------------------------------------------------------------
+// Purpose :
+//------------------------------------------------------------------------------
+void CAreaPortal::InputOpen( inputdata_t &inputdata )
+{
+	m_state = AREAPORTAL_OPEN;
+	UpdateState();
+}
+
+
+//------------------------------------------------------------------------------
+// Purpose :
+//------------------------------------------------------------------------------
+void CAreaPortal::InputToggle( inputdata_t &inputdata )
+{
+	m_state = ((m_state == AREAPORTAL_OPEN) ? AREAPORTAL_CLOSED : AREAPORTAL_OPEN);
+	UpdateState();
+}
+
+
+bool CAreaPortal::UpdateVisibility( const Vector &vOrigin, float fovDistanceAdjustFactor, bool &bIsOpenOnClient )
+{
+	if ( m_state )
+	{
+		// We're not closed, so give the base class a chance to close it.
+		return BaseClass::UpdateVisibility( vOrigin, fovDistanceAdjustFactor, bIsOpenOnClient );
+	}
+	else
+	{
+		bIsOpenOnClient = false;
+		return false;
+	}
+}
+
+
+//------------------------------------------------------------------------------
+// Purpose :
+// Input   :
+// Output  :
+//------------------------------------------------------------------------------
+void CAreaPortal::Use( CBaseEntity *pActivator, CBaseEntity *pCaller, USE_TYPE useType, float value )
+{
+	if ( useType == USE_ON )
+	{
+		m_state = AREAPORTAL_OPEN;
+	}
+	else if ( useType == USE_OFF )
+	{
+		m_state = AREAPORTAL_CLOSED;
+	}
+	else
+	{
+		return;
+	}
+
+	UpdateState();
+}
+
+
+bool CAreaPortal::KeyValue( const char *szKeyName, const char *szValue )
+{
+	if( FStrEq( szKeyName, "StartOpen" ) )
+	{
+		m_state = (atoi(szValue) != 0) ? AREAPORTAL_OPEN : AREAPORTAL_CLOSED;
+
+		return true;
+	}
+	else
+	{
+		return BaseClass::KeyValue( szKeyName, szValue );
+	}
+}
+
+
+bool CAreaPortal::UpdateState()
+{
+	engine->SetAreaPortalState( m_portalNumber, m_state );
+	return !!m_state;
+}
+
+
+int CAreaPortal::UpdateTransmitState()
+{
+	// Our brushes are kept around so don't transmit anything since we don't want to draw them.
+	return SetTransmitState( FL_EDICT_DONTSEND );
+}
+
-- 
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