108 lines
3.0 KiB
C++
108 lines
3.0 KiB
C++
//========= Copyright Valve Corporation, All rights reserved. ============//
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//
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// A class representing a Dag (directed acyclic graph) node used for holding transforms, lights, cameras and shapes
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//
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//=============================================================================
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#ifndef DMEDAG_H
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#define DMEDAG_H
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#ifdef _WIN32
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#pragma once
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#endif
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#include "tier1/utlstack.h"
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#include "datamodel/dmelement.h"
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#include "datamodel/dmattribute.h"
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#include "datamodel/dmattributevar.h"
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#include "movieobjects/dmeshape.h"
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#include "movieobjects/dmetransform.h"
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//-----------------------------------------------------------------------------
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// Forward declarations
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//-----------------------------------------------------------------------------
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class CDmeTransform;
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class CDmeShape;
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class CDmeDrawSettings;
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//-----------------------------------------------------------------------------
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// A class representing a camera
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//-----------------------------------------------------------------------------
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class CDmeDag : public CDmElement
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{
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DEFINE_ELEMENT( CDmeDag, CDmElement );
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public:
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// Accessors
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CDmeTransform *GetTransform();
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CDmeShape *GetShape();
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// Changes the shage
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void SetShape( CDmeShape *pShape );
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bool IsVisible() const;
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void SetVisible( bool bVisible = true );
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// child helpers
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const CUtlVector< DmElementHandle_t > &GetChildren() const;
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int GetChildCount() const;
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CDmeDag *GetChild( int i ) const;
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void AddChild( CDmeDag* pDag );
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void RemoveChild( int i );
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void RemoveChild( const CDmeDag *pChild, bool bRecurse = false );
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int FindChild( const CDmeDag *pChild ) const;
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int FindChild( CDmeDag *&pParent, const CDmeDag *pChild );
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int FindChild( const char *name ) const;
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CDmeDag *FindOrAddChild( const char *name );
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// Recursively render the Dag hierarchy
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virtual void Draw( CDmeDrawSettings *pDrawSettings = NULL );
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void GetBoundingSphere( Vector ¢er, float &radius ) const
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{
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matrix3x4_t identity;
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SetIdentityMatrix( identity );
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GetBoundingSphere( center, radius, identity );
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}
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void GetShapeToWorldTransform( matrix3x4_t &mat );
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void GetLocalMatrix( matrix3x4_t &mat );
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void GetWorldMatrix( matrix3x4_t &mat );
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void GetParentWorldMatrix( matrix3x4_t &mat );
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static void DrawUsingEngineCoordinates( bool bEnable );
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// Transform from DME to engine coordinates
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static void DmeToEngineMatrix( matrix3x4_t& dmeToEngine );
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static void EngineToDmeMatrix( matrix3x4_t& engineToDme );
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protected:
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void GetBoundingSphere( Vector ¢er, float &radius, const matrix3x4_t &pMat ) const;
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void PushDagTransform();
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void PopDagTransform();
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CDmAttribute *GetVisibilityAttribute();
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CDmaVar< bool > m_Visible;
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CDmaElement< CDmeTransform > m_Transform;
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CDmaElement< CDmeShape > m_Shape;
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CDmaElementArray< CDmeDag > m_Children;
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private:
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struct TransformInfo_t
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{
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CDmeTransform *m_pTransform;
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matrix3x4_t m_DagToWorld;
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bool m_bComputedDagToWorld;
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};
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static CUtlStack<TransformInfo_t> s_TransformStack;
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static bool s_bDrawUsingEngineCoordinates;
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};
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#endif // DMEDAG_H
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