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/client/WaterLODMaterialProxy.cpp | 83 ++++++++++++++++++++++++++++
 1 file changed, 83 insertions(+)
 create mode 100644 mp/src/game/client/WaterLODMaterialProxy.cpp

(limited to 'mp/src/game/client/WaterLODMaterialProxy.cpp')

diff --git a/mp/src/game/client/WaterLODMaterialProxy.cpp b/mp/src/game/client/WaterLODMaterialProxy.cpp
new file mode 100644
index 00000000..a1bc2fad
--- /dev/null
+++ b/mp/src/game/client/WaterLODMaterialProxy.cpp
@@ -0,0 +1,83 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//=============================================================================//
+#include "cbase.h"
+#include "materialsystem/imaterialproxy.h"
+#include "materialsystem/imaterial.h"
+#include "materialsystem/imaterialvar.h"
+#include "iviewrender.h"
+#include "toolframework_client.h"
+
+// memdbgon must be the last include file in a .cpp file!!!
+#include "tier0/memdbgon.h"
+
+// forward declarations
+void ToolFramework_RecordMaterialParams( IMaterial *pMaterial );
+
+// no inputs, assumes that the results go into $CHEAPWATERSTARTDISTANCE and $CHEAPWATERENDDISTANCE
+class CWaterLODMaterialProxy : public IMaterialProxy
+{
+public:
+	CWaterLODMaterialProxy();
+	virtual ~CWaterLODMaterialProxy();
+	virtual bool Init( IMaterial *pMaterial, KeyValues *pKeyValues );
+	virtual void OnBind( void *pC_BaseEntity );
+	virtual void Release( void ) { delete this; }
+	virtual IMaterial *GetMaterial();
+
+private:
+	IMaterialVar *m_pCheapWaterStartDistanceVar;
+	IMaterialVar *m_pCheapWaterEndDistanceVar;
+};
+
+CWaterLODMaterialProxy::CWaterLODMaterialProxy()
+{
+	m_pCheapWaterStartDistanceVar = NULL;
+	m_pCheapWaterEndDistanceVar = NULL;
+}
+
+CWaterLODMaterialProxy::~CWaterLODMaterialProxy()
+{
+}
+
+
+bool CWaterLODMaterialProxy::Init( IMaterial *pMaterial, KeyValues *pKeyValues )
+{
+	bool foundVar;
+	m_pCheapWaterStartDistanceVar = pMaterial->FindVar( "$CHEAPWATERSTARTDISTANCE", &foundVar, false );
+	if( !foundVar )
+		return false;
+
+	m_pCheapWaterEndDistanceVar = pMaterial->FindVar( "$CHEAPWATERENDDISTANCE", &foundVar, false );
+	if( !foundVar )
+		return false;
+
+	return true;
+}
+
+void CWaterLODMaterialProxy::OnBind( void *pC_BaseEntity )
+{
+	if( !m_pCheapWaterStartDistanceVar || !m_pCheapWaterEndDistanceVar )
+	{
+		return;
+	}
+	float start, end;
+	view->GetWaterLODParams( start, end );
+	m_pCheapWaterStartDistanceVar->SetFloatValue( start );
+	m_pCheapWaterEndDistanceVar->SetFloatValue( end );
+
+	if ( ToolsEnabled() )
+	{
+		ToolFramework_RecordMaterialParams( GetMaterial() );
+	}
+}
+
+IMaterial *CWaterLODMaterialProxy::GetMaterial()
+{
+	return m_pCheapWaterStartDistanceVar->GetOwningMaterial();
+}
+
+EXPOSE_INTERFACE( CWaterLODMaterialProxy, IMaterialProxy, "WaterLOD" IMATERIAL_PROXY_INTERFACE_VERSION );
-- 
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