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110 lines
2.5 KiB
110 lines
2.5 KiB
//========= Copyright Valve Corporation, All rights reserved. ============// |
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// |
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// Purpose: |
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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 "proxyentity.h" |
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#include "materialsystem/imaterial.h" |
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#include "materialsystem/imaterialvar.h" |
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#include "materialsystem/imaterialsystem.h" |
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#include <KeyValues.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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// $sineVar : name of variable that controls the alpha level (float) |
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class CShieldProxy : public CEntityMaterialProxy |
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{ |
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public: |
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CShieldProxy(); |
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virtual ~CShieldProxy(); |
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virtual bool Init( IMaterial *pMaterial, KeyValues *pKeyValues ); |
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virtual void OnBind( C_BaseEntity *pC_BaseEntity ); |
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virtual IMaterial *GetMaterial(); |
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private: |
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IMaterialVar *m_AlphaVar; |
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IMaterialVar *m_pTextureScrollVar; |
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float m_ScrollRate; |
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float m_ScrollAngle; |
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}; |
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CShieldProxy::CShieldProxy() |
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{ |
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m_AlphaVar = NULL; |
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m_pTextureScrollVar = NULL; |
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m_ScrollRate = 0; |
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m_ScrollAngle = 0; |
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} |
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CShieldProxy::~CShieldProxy() |
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{ |
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} |
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bool CShieldProxy::Init( IMaterial *pMaterial, KeyValues *pKeyValues ) |
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{ |
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bool foundVar; |
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m_AlphaVar = pMaterial->FindVar( "$translucency", &foundVar, false ); |
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if( !foundVar ) |
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return false; |
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char const* pScrollVarName = pKeyValues->GetString( "textureScrollVar" ); |
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if (!pScrollVarName) |
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return false; |
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m_pTextureScrollVar = pMaterial->FindVar( pScrollVarName, &foundVar, false ); |
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if( !foundVar ) |
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return false; |
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m_ScrollRate = pKeyValues->GetFloat( "textureScrollRate", 1 ); |
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m_ScrollAngle = pKeyValues->GetFloat( "textureScrollAngle", 0 ); |
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return true; |
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} |
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void CShieldProxy::OnBind( C_BaseEntity *pEnt ) |
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{ |
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if (m_AlphaVar) |
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{ |
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m_AlphaVar->SetFloatValue( pEnt->m_clrRender->a ); |
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} |
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if( !m_pTextureScrollVar ) |
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{ |
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return; |
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} |
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float sOffset, tOffset; |
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sOffset = gpGlobals->curtime * sin( m_ScrollAngle * ( M_PI / 180.0f ) ) * m_ScrollRate; |
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tOffset = gpGlobals->curtime * cos( m_ScrollAngle * ( M_PI / 180.0f ) ) * m_ScrollRate; |
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// make sure that we are positive |
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if( sOffset < 0.0f ) |
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{ |
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sOffset += 1.0f + -( int )sOffset; |
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} |
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if( tOffset < 0.0f ) |
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{ |
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tOffset += 1.0f + -( int )tOffset; |
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} |
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// make sure that we are in a [0,1] range |
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sOffset = sOffset - ( int )sOffset; |
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tOffset = tOffset - ( int )tOffset; |
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m_pTextureScrollVar->SetVecValue( sOffset, tOffset, 0.0f ); |
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} |
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IMaterial *CShieldProxy::GetMaterial() |
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{ |
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if ( !m_AlphaVar ) |
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return NULL; |
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return m_AlphaVar->GetOwningMaterial(); |
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} |
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EXPOSE_INTERFACE( CShieldProxy, IMaterialProxy, "Shield" IMATERIAL_PROXY_INTERFACE_VERSION );
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