159 lines
3.6 KiB
C++
159 lines
3.6 KiB
C++
//========= Copyright Valve Corporation, All rights reserved. ============//
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//
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// Purpose:
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//
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//===========================================================================//
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#include "cbase.h"
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#include "materialsystem/imaterialproxy.h"
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#include "materialsystem/imaterial.h"
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#include "materialsystem/imaterialvar.h"
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#include "functionproxy.h"
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#include <KeyValues.h>
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#include "mathlib/vmatrix.h"
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#include "toolframework_client.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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// forward declarations
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void ToolFramework_RecordMaterialParams( IMaterial *pMaterial );
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class C_FuncConveyor : public C_BaseEntity
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{
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public:
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DECLARE_CLASS( C_FuncConveyor, C_BaseEntity );
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DECLARE_CLIENTCLASS();
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C_FuncConveyor();
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float GetConveyorSpeed() { return m_flConveyorSpeed; }
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private:
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float m_flConveyorSpeed;
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};
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IMPLEMENT_CLIENTCLASS_DT( C_FuncConveyor, DT_FuncConveyor, CFuncConveyor )
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RecvPropFloat( RECVINFO( m_flConveyorSpeed ) ),
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END_RECV_TABLE()
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C_FuncConveyor::C_FuncConveyor()
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{
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m_flConveyorSpeed = 0.0;
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}
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class CConveyorMaterialProxy : public IMaterialProxy
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{
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public:
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CConveyorMaterialProxy();
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virtual ~CConveyorMaterialProxy();
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virtual bool Init( IMaterial *pMaterial, KeyValues *pKeyValues );
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virtual void OnBind( void *pC_BaseEntity );
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virtual void Release( void ) { delete this; }
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virtual IMaterial *GetMaterial();
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private:
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C_BaseEntity *BindArgToEntity( void *pArg );
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IMaterialVar *m_pTextureScrollVar;
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};
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CConveyorMaterialProxy::CConveyorMaterialProxy()
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{
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m_pTextureScrollVar = NULL;
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}
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CConveyorMaterialProxy::~CConveyorMaterialProxy()
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{
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}
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bool CConveyorMaterialProxy::Init( IMaterial *pMaterial, KeyValues *pKeyValues )
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{
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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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bool foundVar;
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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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return true;
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}
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C_BaseEntity *CConveyorMaterialProxy::BindArgToEntity( void *pArg )
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{
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IClientRenderable *pRend = (IClientRenderable *)pArg;
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return pRend->GetIClientUnknown()->GetBaseEntity();
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}
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void CConveyorMaterialProxy::OnBind( void *pC_BaseEntity )
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{
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if( !pC_BaseEntity )
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return;
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C_BaseEntity *pEntity = BindArgToEntity( pC_BaseEntity );
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if ( !pEntity )
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return;
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C_FuncConveyor *pConveyor = dynamic_cast<C_FuncConveyor*>(pEntity);
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if ( !pConveyor )
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return;
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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 flConveyorSpeed = pConveyor->GetConveyorSpeed();
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float flRate = abs( flConveyorSpeed ) / 128.0;
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float flAngle = (flConveyorSpeed >= 0) ? 180 : 0;
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float sOffset = gpGlobals->curtime * cos( flAngle * ( M_PI / 180.0f ) ) * flRate;
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float tOffset = gpGlobals->curtime * sin( flAngle * ( M_PI / 180.0f ) ) * flRate;
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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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if (m_pTextureScrollVar->GetType() == MATERIAL_VAR_TYPE_MATRIX)
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{
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VMatrix mat;
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MatrixBuildTranslation( mat, sOffset, tOffset, 0.0f );
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m_pTextureScrollVar->SetMatrixValue( mat );
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}
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else
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{
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m_pTextureScrollVar->SetVecValue( sOffset, tOffset, 0.0f );
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}
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if ( ToolsEnabled() )
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{
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ToolFramework_RecordMaterialParams( GetMaterial() );
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}
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}
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IMaterial *CConveyorMaterialProxy::GetMaterial()
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{
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return m_pTextureScrollVar ? m_pTextureScrollVar->GetOwningMaterial() : NULL;
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}
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EXPOSE_INTERFACE( CConveyorMaterialProxy, IMaterialProxy, "ConveyorScroll" IMATERIAL_PROXY_INTERFACE_VERSION );
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