TAPsColDetSupport.hpp

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/******************************************************************************
TAPsColDetSupport.hpp

A Base (Abstract) Collision Detection support.
A Model should be inherited from this class for collision detection support.

SUKITTI PUNAK   (04/25/2005)
UPDATE          (07/26/2010)
******************************************************************************/
#ifndef TAPs_COL_DET_SUPPORT_HPP
#define TAPs_COL_DET_SUPPORT_HPP

#include "../CD/TAPsCDLib.hpp"

BEGIN_NAMESPACE_TAPs
//=============================================================================
template <typename T>
class ColDetSupport {
//-----------------------------------------------------------------------------
// Member Functions ------------------------------------------------------------
public:
    //-------------------------------------------------------------------------
    ColDetSupport ();
    //-------------------------------------------------------------------------
    virtual ~ColDetSupport ();
    //-------------------------------------------------------------------------
    // Get/Set Fn(s)
    inline Vector3<T> GetBoundingAABBLowPoint () const;
    inline Vector3<T> GetBoundingAABBHighPoint () const;
    inline void SetBoundingAABBLowPoint ( Vector3<T> pt );
    inline void SetBoundingAABBHighPoint ( Vector3<T> pt );
    inline Vector3<T> GetBoundingEllipsoid () const;
    inline T          GetBoundingSphere () const;
    //-------------------------------------------------------------------------
    // Collision Detection Fn(s)
    virtual void CalBoundingAABB ()      {};    // default fn
    virtual void CalBoundingEllipsoid () {};    // default fn
    virtual void CalBoundingSphere ()    {};    // default fn
    //-------------------------------------------------------------------------
    virtual void BuildBVHTree ( Enum::CD treeType ) { ClearBVHTree(); }

    BVHTree<T> const * const GetBVHTree () const    { return m_pBVHTree; }
    BVHTree<T> *             GetBVHTree ()          { return m_pBVHTree; };

    void ClearBVHTree ();
    //-------------------------------------------------------------------------
#if defined(__gl_h_) || defined(__GL_H__)
public:
    virtual void DrawBVH ()
    { if ( m_pBVHTree ) m_pBVHTree->DrawByOpenGL(); }
    virtual void DrawBVH ( int startLevel, int endLevel )
    { if ( m_pBVHTree ) m_pBVHTree->DrawByOpenGL( 0, startLevel, endLevel ); }
    virtual void DrawBVHOnlyEndLevel ()
    { if ( m_pBVHTree ) m_pBVHTree->DrawByOpenGLOnlyEndLevel(); }
#endif
//-----------------------------------------------------------------------------
// Data Members  ---------------------------------------------------------------
protected:
    // Axis-Aligned Bounding Box (0 for low & 1 for high values)
    Vector3<T>  m_paBoundingAABB[2];
    Vector3<T>  m_pBoundingEllipsoid;   // radii of bounding ellipsoid
    T           m_pBoundingSphere;      // radius of bounding sphere
    Vector3<T>  m_pBoundingCenter;      // center of the bounding volumes
    //-------------------------------------------------------------------------
    // Bounding Volume Hierarchy
    BVHTree<T> * m_pBVHTree;
};
//=============================================================================
END_NAMESPACE_TAPs
//-----------------------------------------------------------------------------
// Include definition if TAPs_USE_EXPORT is not defined
//#if !defined( TAPs_USE_EXPORT )
    #include "TAPsColDetSupport.cpp"
//#endif
//-----------------------------------------------------------------------------
#endif
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