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movieobjects/dmeshape.cpp

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+//=============================================================================
+#include "movieobjects/dmeshape.h"
+#include "datamodel/dmelementfactoryhelper.h"
+#include "movieobjects_interfaces.h"
+#include "movieobjects/dmedag.h"
+
+// memdbgon must be the last include file in a .cpp file!!!
+#include "tier0/memdbgon.h"
+
+
+//-----------------------------------------------------------------------------
+// Expose this class to the scene database 
+//-----------------------------------------------------------------------------
+IMPLEMENT_ELEMENT_FACTORY( DmeShape, CDmeShape );
+
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+void CDmeShape::OnConstruction()
+{
+	m_visible.InitAndSet( this, "visible", true );
+}
+
+void CDmeShape::OnDestruction()
+{
+}
+
+void CDmeShape::Draw( const matrix3x4_t &shapeToWorld, CDmeDrawSettings *pDrawSettings /* = NULL */ )
+{
+	Assert( 0 );
+}
+
+
+//-----------------------------------------------------------------------------
+// The default bounding sphere is empty at the origin
+//-----------------------------------------------------------------------------
+void CDmeShape::GetBoundingSphere( Vector &c, float &r ) const
+{
+	c.Zero();
+	r = 0.0f;
+}
+//-----------------------------------------------------------------------------
+//
+//-----------------------------------------------------------------------------
+int CDmeShape::GetParentCount() const
+{
+	int nReferringDags = 0;
+
+	DmAttributeReferenceIterator_t i = g_pDataModel->FirstAttributeReferencingElement( GetHandle() );
+	while ( i != DMATTRIBUTE_REFERENCE_ITERATOR_INVALID )
+	{
+		CDmAttribute *pAttribute = g_pDataModel->GetAttribute( i );
+		CDmeDag *pDag = CastElement< CDmeDag >( pAttribute->GetOwner() );
+		const static UtlSymId_t symShape = g_pDataModel->GetSymbol( "shape" );
+		if ( pDag && pAttribute->GetNameSymbol() == symShape && pDag->GetFileId() == GetFileId()  )
+		{
+			++nReferringDags;
+		}
+
+		i = g_pDataModel->NextAttributeReferencingElement( i );
+	}
+
+	return nReferringDags;
+}
+
+
+//-----------------------------------------------------------------------------
+//
+//-----------------------------------------------------------------------------
+CDmeDag *CDmeShape::GetParent( int nParentIndex /*= 0 */ ) const
+{
+	int nReferringDags = 0;
+
+	DmAttributeReferenceIterator_t i = g_pDataModel->FirstAttributeReferencingElement( GetHandle() );
+	while ( i != DMATTRIBUTE_REFERENCE_ITERATOR_INVALID )
+	{
+		CDmAttribute *pAttribute = g_pDataModel->GetAttribute( i );
+		CDmeDag *pDag = CastElement< CDmeDag >( pAttribute->GetOwner() );
+		const static UtlSymId_t symShape = g_pDataModel->GetSymbol( "shape" );
+		if ( pDag && pAttribute->GetNameSymbol() == symShape && pDag->GetFileId() == GetFileId()  )
+		{
+			if ( nReferringDags == nParentIndex )
+				return pDag;
+
+			++nReferringDags;
+		}
+
+		i = g_pDataModel->NextAttributeReferencingElement( i );
+	}
+
+	return NULL;
+}
+
+
+//-----------------------------------------------------------------------------
+//
+//-----------------------------------------------------------------------------
+void CDmeShape::GetShapeToWorldTransform( matrix3x4_t &mat, int nParentIndex /*= 0 */ ) const
+{
+	CDmeDag *pDag = GetParent( nParentIndex );
+
+	if ( pDag )
+	{
+		pDag->GetShapeToWorldTransform( mat );
+	}
+	else
+	{
+		SetIdentityMatrix( mat );
+	}
+}