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public/toolutils/DmeMdlRenderable.h

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: Decorator class to make a DME renderable as a MDL
+//													 
+//===========================================================================//
+
+#ifndef DMEMDLRENDERABLE_H
+#define DMEMDLRENDERABLE_H
+#ifdef _WIN32
+#pragma once
+#endif
+
+#include "toolutils/dmerenderable.h"
+#include "movieobjects/dmemdl.h"
+#include "movieobjects/dmetransform.h"
+#include "datacache/imdlcache.h"
+#include "mathlib/mathlib.h"
+#include "datamodel/dmehandle.h"
+#include "toolutils/enginetools_int.h"
+#include "materialsystem/imaterialsystemhardwareconfig.h"
+#include "tier3/tier3.h"
+
+
+//-----------------------------------------------------------------------------
+// Deals with the base implementation for turning a Dme into a renderable
+//-----------------------------------------------------------------------------
+template < class T >
+class CDmeMdlRenderable : public CDmeRenderable< T >
+{
+	DEFINE_UNINSTANCEABLE_ELEMENT( CDmeMdlRenderable, CDmeRenderable< T > );
+
+// IClientUnknown implementation.
+public:
+	virtual int					GetBody();
+	virtual int					GetSkin();
+	virtual int					DrawModel( int flags );
+	virtual void				GetRenderBounds( Vector& mins, Vector& maxs );
+
+	void SetModelName( const char *pMDLName );
+
+protected:
+	CDmeMDL *GetMDL() { return m_hMDL; }
+
+private:
+	void SetUpLighting( const Vector &vecCenter );
+
+	CDmeHandle<CDmeMDL> m_hMDL;
+	CDmeHandle<CDmeTransform> m_hTransform;
+};
+
+
+//-----------------------------------------------------------------------------
+// Construction, destruction
+//-----------------------------------------------------------------------------
+template < class T >
+void CDmeMdlRenderable<T>::OnConstruction() 
+{
+	m_hMDL = CreateElement<CDmeMDL>( "MDLRenderable", GetFileId() );
+	m_hTransform = CreateElement<CDmeTransform>( "MDLTransform", GetFileId() );
+}
+
+template < class T >
+void CDmeMdlRenderable<T>::OnDestruction() 
+{
+	g_pDataModel->DestroyElement( m_hMDL );
+	g_pDataModel->DestroyElement( m_hTransform );
+}
+
+template < class T >
+int	CDmeMdlRenderable<T>::GetBody()
+{
+	return m_hMDL->m_nBody;
+}
+
+template < class T >
+int	CDmeMdlRenderable<T>::GetSkin()
+{
+	return m_hMDL->m_nSkin;
+}
+
+template < class T >
+int	CDmeMdlRenderable<T>::DrawModel( int flags )
+{
+	matrix3x4_t mat;
+	AngleMatrix( GetRenderAngles(), GetRenderOrigin(), mat );
+	m_hTransform->SetTransform( mat );
+	m_hMDL->m_flTime = Plat_FloatTime();
+	SetUpLighting( GetRenderOrigin() );
+	bool bIsDrawingInEngine = m_hMDL->IsDrawingInEngine();
+	m_hMDL->DrawInEngine( true );
+	m_hMDL->Draw( mat );
+	m_hMDL->DrawInEngine( bIsDrawingInEngine );
+	return 1;
+}
+
+template < class T >
+void CDmeMdlRenderable<T>::GetRenderBounds( Vector& mins, Vector& maxs )
+{
+	m_hMDL->GetBoundingBox( &mins, &maxs );
+}
+
+template < class T >
+void CDmeMdlRenderable<T>::SetModelName( const char *pMDLRelativePath )
+{
+	if ( pMDLRelativePath )
+	{
+		MDLHandle_t hMdl = g_pMDLCache->FindMDL( pMDLRelativePath );
+		m_hMDL->SetMDL( hMdl );
+	}
+	else
+	{
+		m_hMDL->SetMDL( MDLHANDLE_INVALID );
+	}
+}
+
+//-----------------------------------------------------------------------------
+// Set up lighting conditions
+//-----------------------------------------------------------------------------
+template < class T >
+void CDmeMdlRenderable<T>::SetUpLighting( const Vector &vecCenter )
+{
+	// Set up lighting conditions
+	Vector vecAmbient[6];
+	Vector4D vecAmbient4D[6];
+	LightDesc_t desc[2];
+	int nLightCount = enginetools->GetLightingConditions( vecCenter, vecAmbient, 2, desc );
+	int nMaxLights = g_pMaterialSystemHardwareConfig->MaxNumLights();
+	if( nLightCount > nMaxLights )
+	{
+		nLightCount = nMaxLights;
+	}
+
+	int i;
+	for( i = 0; i < 6; i++ )
+	{
+		VectorCopy( vecAmbient[i], vecAmbient4D[i].AsVector3D() );
+		vecAmbient4D[i][3] = 1.0f;
+	}
+	CMatRenderContextPtr pRenderContext( g_pMaterialSystem );
+	pRenderContext->SetAmbientLightCube( vecAmbient4D );
+
+	for( i = 0; i < nLightCount; i++ )
+	{
+		LightDesc_t *pLight = &desc[i];
+		pLight->m_Flags = 0;
+		if( pLight->m_Attenuation0 != 0.0f )
+		{
+			pLight->m_Flags |= LIGHTTYPE_OPTIMIZATIONFLAGS_HAS_ATTENUATION0;
+		}
+		if( pLight->m_Attenuation1 != 0.0f )
+		{
+			pLight->m_Flags |= LIGHTTYPE_OPTIMIZATIONFLAGS_HAS_ATTENUATION1;
+		}
+		if( pLight->m_Attenuation2 != 0.0f )
+		{
+			pLight->m_Flags |= LIGHTTYPE_OPTIMIZATIONFLAGS_HAS_ATTENUATION2;
+		}
+
+		pRenderContext->SetLight( i, desc[i] );
+	}
+
+	for( ; i < nMaxLights; i++ )
+	{
+		LightDesc_t disableDesc;
+		disableDesc.m_Type = MATERIAL_LIGHT_DISABLE;
+		pRenderContext->SetLight( i, disableDesc );
+	}
+}
+
+
+#endif // DMEMDLRENDERABLE_H