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/logic_navigation.cpp | 183 ++++++++++++++++++++++++++++++++
 1 file changed, 183 insertions(+)
 create mode 100644 mp/src/game/server/logic_navigation.cpp

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

diff --git a/mp/src/game/server/logic_navigation.cpp b/mp/src/game/server/logic_navigation.cpp
new file mode 100644
index 00000000..1431ad40
--- /dev/null
+++ b/mp/src/game/server/logic_navigation.cpp
@@ -0,0 +1,183 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//=============================================================================//
+
+#include "cbase.h"
+
+// memdbgon must be the last include file in a .cpp file!!!
+#include "tier0/memdbgon.h"
+
+#define SF_NAV_START_ON		0x0001
+
+enum navproperties_t
+{
+	NAV_IGNORE = 1<<0,
+};
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+class CLogicNavigation : public CLogicalEntity,
+						 public IEntityListener
+{
+	DECLARE_CLASS( CLogicNavigation, CLogicalEntity );
+
+	bool KeyValue( const char *szKeyName, const char *szValue );
+	void Activate( void );
+
+private:
+	void UpdateOnRemove();
+
+	void OnEntitySpawned( CBaseEntity *pEntity );
+
+	// Inputs
+	void InputTurnOn( inputdata_t &inputdata ) { TurnOn(); }
+	void InputTurnOff( inputdata_t &inputdata ) { TurnOff(); }
+	void InputToggle( inputdata_t &inputdata ) 
+	{ 
+		if ( m_isOn )
+			TurnOff();
+		else
+			TurnOn();
+	}
+
+	void TurnOn();
+	void TurnOff();
+	void UpdateProperty();
+
+	DECLARE_DATADESC();
+
+	bool				m_isOn;
+	navproperties_t		m_navProperty;
+};
+
+LINK_ENTITY_TO_CLASS(logic_navigation, CLogicNavigation);
+
+
+BEGIN_DATADESC( CLogicNavigation )
+
+	DEFINE_FIELD( m_isOn, FIELD_BOOLEAN ),
+	DEFINE_FIELD( m_navProperty, FIELD_INTEGER ),
+
+	// Inputs
+	DEFINE_INPUTFUNC(FIELD_VOID, "TurnOn", InputTurnOn),
+	DEFINE_INPUTFUNC(FIELD_VOID, "TurnOff", InputTurnOff),
+	DEFINE_INPUTFUNC(FIELD_VOID, "Toggle", InputToggle),
+
+END_DATADESC()
+
+
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+// Input  : *szKeyName - 
+//			*szValue - 
+// Output : Returns true on success, false on failure.
+//-----------------------------------------------------------------------------
+bool CLogicNavigation::KeyValue( const char *szKeyName, const char *szValue )
+{
+	if ( FStrEq(szKeyName, "navprop") )
+	{
+		if ( FStrEq( szValue, "Ignore" ) )
+		{
+			m_navProperty = NAV_IGNORE;
+		}
+		else
+		{
+			DevMsg( 1, "Unknown nav property %s\n", szValue );
+		}
+		return true;
+	}
+
+	return BaseClass::KeyValue( szKeyName, szValue );
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+void CLogicNavigation::Activate()
+{
+	BaseClass::Activate();
+
+	if ( HasSpawnFlags( SF_NAV_START_ON ) )
+	{
+		TurnOn();
+		RemoveSpawnFlags( SF_NAV_START_ON );
+	}
+	else if ( m_isOn )
+	{
+		gEntList.AddListenerEntity( this );
+	}
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+void CLogicNavigation::UpdateOnRemove()
+{
+	if ( m_isOn )
+	{
+		gEntList.RemoveListenerEntity( this );
+	}
+
+	BaseClass::UpdateOnRemove();
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+void CLogicNavigation::OnEntitySpawned( CBaseEntity *pEntity )
+{
+	if ( m_isOn && ( m_navProperty & NAV_IGNORE ) && pEntity->NameMatches( m_target ) )
+	{
+		pEntity->SetNavIgnore();
+	}
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+void CLogicNavigation::TurnOn()
+{
+	if ( m_isOn )
+		return;
+	m_isOn = true;
+	gEntList.AddListenerEntity( this );
+	UpdateProperty();
+}
+
+void CLogicNavigation::UpdateProperty()
+{
+	CBaseEntity *pEntity = NULL;
+	while ( ( pEntity = gEntList.FindEntityByName( pEntity, STRING(m_target) ) ) != NULL )
+	{
+		if ( m_isOn )
+		{
+			if ( m_navProperty & NAV_IGNORE )
+				pEntity->SetNavIgnore();
+		}
+		else
+		{
+			if ( m_navProperty & NAV_IGNORE )
+				pEntity->ClearNavIgnore();
+		}
+	}
+}
+
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+void CLogicNavigation::TurnOff()
+{
+	if ( !m_isOn )
+		return;
+
+	m_isOn = false;
+	gEntList.RemoveListenerEntity( this );
+	UpdateProperty();
+}
+
-- 
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