TAPsBVSupportFns.cpp

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/******************************************************************************
TAPsBVSupportFns.hpp
******************************************************************************/
/******************************************************************************
SUKITTI PUNAK   (08/26/2010)
UPDATE          (09/26/2010)
******************************************************************************/
#include "TAPsBVSupportFns.hpp"
// Using Inclusion Model (i.e. definitions are included in declarations)
//                       (this name.cpp is included in name.hpp)
// Each friend is defined directly inside its declaration.

BEGIN_NAMESPACE_TAPs
//=============================================================================
//-----------------------------------------------------------------------------
template <typename T>
BoundingVolume<T> * BVSupportFns<T>::CreateBVOfType ( Enum::CD type )
{
    switch ( type ) {
        case Enum::BOUNDING_SPHERE:
            return CreateBVSphere();
        case Enum::BOUNDING_CYLINDER:
            return CreateBVCylinder();
        case Enum::BOUNDING_BOX:
            return CreateBVBox();
        default:
            return NULL;
    }
}
//-----------------------------------------------------------------------------
template <typename T>
BoundingSphere<T> * BVSupportFns<T>::CreateBVSphere ()
{
    return new BoundingSphere<T>();
}
//-----------------------------------------------------------------------------
template <typename T>
BoundingCylinder<T> * BVSupportFns<T>::CreateBVCylinder ()
{
    return new BoundingCylinder<T>();
}
//-----------------------------------------------------------------------------
template <typename T>
BoundingBox<T> * BVSupportFns<T>::CreateBVBox ()
{
    return new BoundingBox<T>();
}
//-----------------------------------------------------------------------------


#if defined(__gl_h_) || defined(__GL_H__)
//-----------------------------------------------------------------------------
template <typename T>
BoundingVolume<T> * BVSupportFns<T>::CreateBVOfType (
    Enum::CD type,
    OpenGL::OpenGLModel<T> * pModel
)
{
    BoundingVolume<T> * pBV;
    switch ( type ) {
        case Enum::BOUNDING_SPHERE:
            pBV = CreateBVSphere();
            break;
        case Enum::BOUNDING_CYLINDER:
            pBV = CreateBVCylinder();
            break;
        case Enum::BOUNDING_BOX:
            pBV = CreateBVBox();
            break;
        default:
            return NULL;
    }
    if ( !pBV ) return NULL;

    //
    // Find and set bounding data for the model
    //
    if ( pModel ) {

        switch ( type ) {
            case Enum::BOUNDING_SPHERE:
                {
                    pModel->CalBoundingSphere();
                    Vector3<T> lowPt = pModel->GetBoundingAABBLowPoint();
                    Vector3<T> highPt = pModel->GetBoundingAABBHighPoint();
                    Vector3<T> center = ( highPt + lowPt ) * T(0.5);
                    pBV->SetCenter( center );
                    pBV->SetRadius( highPt.Length() );
                }
                break;
            case Enum::BOUNDING_CYLINDER:
                break;
            case Enum::BOUNDING_BOX:
                {
                    pModel->CalBoundingAABB();
                    Vector3<T> lowPt = pModel->GetBoundingAABBLowPoint();
                    Vector3<T> highPt = pModel->GetBoundingAABBHighPoint();
                    Vector3<T> center = ( highPt + lowPt ) * T(0.5);
                    pBV->SetCenter( center );
                    pBV->SetWidth(  highPt[0] - lowPt[0] );
                    pBV->SetHeight( highPt[1] - lowPt[1] );
                    pBV->SetDepth(  highPt[2] - lowPt[2] );
                }
                break;
            default:
                break;
        }
    }

    std::cout << "BV: " << *pBV << "\n";

    return pBV;
}
//-----------------------------------------------------------------------------
#endif


//=============================================================================
END_NAMESPACE_TAPs
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