78 lines
2.0 KiB
C++
78 lines
2.0 KiB
C++
//========= Copyright Valve Corporation, All rights reserved. ============//
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//
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// Purpose: This module implements all the proxies used by the particle systems.
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//
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// $NoKeywords: $
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//=============================================================================//
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#include "cbase.h"
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#include "particlemgr.h"
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#include "materialsystem/imaterialproxy.h"
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#include "materialsystem/imaterialvar.h"
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// memdbgon must be the last include file in a .cpp file!!!
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#include "tier0/memdbgon.h"
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// ------------------------------------------------------------------------ //
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// ParticleSphereProxy
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// ------------------------------------------------------------------------ //
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class ParticleSphereProxy : public IMaterialProxy
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{
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// IMaterialProxy overrides.
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public:
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ParticleSphereProxy()
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{
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}
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virtual ~ParticleSphereProxy()
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{
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}
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virtual bool Init( IMaterial *pMaterial, KeyValues *pKeyValues )
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{
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m_pLightPosition = pMaterial->FindVar( "$light_position", NULL, false );
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m_pLightColor = pMaterial->FindVar( "$light_color", NULL, false );
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return true;
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}
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virtual void OnBind( void *pvParticleMgr )
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{
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if( !pvParticleMgr )
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return;
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CParticleMgr *pMgr = (CParticleMgr*)pvParticleMgr;
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CParticleLightInfo info;
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pMgr->GetDirectionalLightInfo( info );
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// Transform the light into camera space.
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Vector vTransformedPos = pMgr->GetModelView() * info.m_vPos;
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if ( m_pLightPosition )
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m_pLightPosition->SetVecValue( vTransformedPos.Base(), 3 );
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if ( m_pLightColor )
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{
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Vector vTotalColor = info.m_vColor * info.m_flIntensity;
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m_pLightColor->SetVecValue( vTotalColor.Base(), 3 );
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}
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}
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virtual void Release( void ) { delete this; }
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virtual IMaterial *GetMaterial()
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{
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IMaterialVar *pVar = m_pLightPosition ? m_pLightPosition : m_pLightColor;
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if ( !pVar )
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return NULL;
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return pVar->GetOwningMaterial();
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}
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private:
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IMaterialVar *m_pLightPosition;
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IMaterialVar *m_pLightColor;
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};
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EXPOSE_INTERFACE( ParticleSphereProxy, IMaterialProxy, "ParticleSphereProxy" IMATERIAL_PROXY_INTERFACE_VERSION );
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