148 lines
3.2 KiB
C++
148 lines
3.2 KiB
C++
//========= Copyright © 1996-2008, Valve Corporation, All rights reserved. ============//
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//
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// Material proxy to get the cycle from a CBaseAnimateing derived entity.
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//
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// $NoKeywords: $
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//=============================================================================//
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#include "cbase.h"
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// identifier was truncated to '255' characters in the debug information
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//#pragma warning(disable: 4786)
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#include "ProxyEntity.h"
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#include "materialsystem/IMaterialVar.h"
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#include "imaterialproxydict.h"
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// NOTE: This has to be the last file included!
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#include "tier0/memdbgon.h"
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class CCycleMaterialProxy: public CEntityMaterialProxy
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{
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public:
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CCycleMaterialProxy()
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{
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m_pMaterial = NULL;
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m_pResult = NULL;
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m_bEaseIn = false;
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m_bEaseOut = false;
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m_fStart = 0.0f;
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m_fEnd = 1.0f;
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}
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virtual ~CCycleMaterialProxy()
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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_pMaterial = pMaterial;
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const char *pResult = pKeyValues->GetString( "resultVar", NULL );
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if ( !pResult )
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return false;
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bool found;
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m_pResult = m_pMaterial->FindVar( pResult, &found );
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if ( !found )
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{
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m_pResult = NULL;
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return false;
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}
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if ( !Q_stricmp( pResult, "$alpha" ) )
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{
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pMaterial->SetMaterialVarFlag( MATERIAL_VAR_ALPHA_MODIFIED_BY_PROXY, true );
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}
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pResult = pKeyValues->GetString( "easein", NULL );
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if( pResult && Q_atoi( pResult ) != 0 )
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{
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m_bEaseIn = true;
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}
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pResult = pKeyValues->GetString( "easeout", NULL );
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if( pResult && Q_atoi( pResult ) != 0 )
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{
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m_bEaseOut = true;
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}
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pResult = pKeyValues->GetString( "start", NULL );
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if( pResult )
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{
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m_fStart = Q_atof( pResult );
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}
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pResult = pKeyValues->GetString( "end", NULL );
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if( pResult )
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{
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m_fEnd = Q_atof( pResult );
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}
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return true;
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}
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virtual void OnBind( C_BaseEntity *pC_BaseEntity )
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{
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C_BaseAnimating *pBaseAnimating = pC_BaseEntity ? pC_BaseEntity->GetBaseAnimating() : NULL;
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if ( pBaseAnimating )
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{
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float fCycle = pBaseAnimating->GetCycle();
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float f = RemapValClamped( fCycle, m_fStart, m_fEnd, 0.0f, 1.0f );
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if ( m_bEaseIn && m_bEaseOut )
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{
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f = SimpleSpline( f );
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}
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else if ( m_bEaseIn )
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{
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f = sin( M_PI * f * 0.5f );
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}
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else if ( m_bEaseOut )
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{
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f = 1.0f - sin( M_PI * f * 0.5f + 0.5f * M_PI );
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}
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MaterialVarType_t resultType;
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int vecSize;
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ComputeResultType( resultType, vecSize );
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switch( resultType )
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{
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case MATERIAL_VAR_TYPE_VECTOR:
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{
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Vector4D vec( f, f, f, f );
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m_pResult->SetVecValue( vec.Base(), vecSize );
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}
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break;
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case MATERIAL_VAR_TYPE_FLOAT:
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case MATERIAL_VAR_TYPE_INT:
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default:
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m_pResult->SetFloatValue( f );
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break;
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}
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}
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}
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virtual IMaterial *GetMaterial()
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{
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return m_pMaterial;
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}
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void ComputeResultType( MaterialVarType_t& resultType, int& vecSize )
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{
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vecSize = 1;
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resultType = m_pResult->GetType();
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if (resultType == MATERIAL_VAR_TYPE_VECTOR)
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{
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vecSize = m_pResult->VectorSize();
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}
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}
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protected:
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IMaterial *m_pMaterial;
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IMaterialVar *m_pResult;
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bool m_bEaseIn;
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bool m_bEaseOut;
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float m_fStart;
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float m_fEnd;
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};
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EXPOSE_MATERIAL_PROXY( CCycleMaterialProxy, Cycle );
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