source-engine/game/client/WaterLODMaterialProxy.cpp

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2020-04-22 16:56:21 +00:00
//========= 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 );