mgcspheretree.h

3D Game Engine Design Source Code非常棒

// Magic Software, Inc.
// http://www.magic-software.com
// Copyright (c) 2000, All Rights Reserved
//
// Source code from Magic Software is supplied under the terms of a license
// agreement and may not be copied or disclosed except in accordance with the
// terms of that agreement.  The various license agreements may be found at
// the Magic Software web site.  This file is subject to the license
//
// FREE SOURCE CODE
// http://www.magic-software.com/License/free.pdf

#ifndef MGCSPHERETREE_H
#define MGCSPHERETREE_H

#include "MgcBoundingVolumeTree.h"
#include "MgcSphere.h"


class MgcSphereBV : public MgcBoundingVolume
{
public:
    MgcSphere m_kSphere;
};


class MgcSphereTree : public MgcBoundingVolumeTree
{
public:
    MgcSphereTree (unsigned short usVertexCount, const MgcVector3* akVertex,
        unsigned short usTriangleCount, const unsigned short* ausConnect,
        unsigned short usMaxTrisPerLeaf);

    const MgcSphere& GetSphere () const;

protected:
    static void CreateBound (unsigned short usVertexCount,
        const MgcVector3* akVertex, const unsigned short* ausConnect,
        unsigned short usI0, unsigned short usI1, unsigned short* ausISplit,
        MgcBoundingVolume*& rkpBound, MgcVector3& rkOrigin,
        MgcVector3& rkDirection);
};

//----------------------------------------------------------------------------
inline const MgcSphere& MgcSphereTree::GetSphere () const
{
    return ((MgcSphereBV*)m_pkBound)->m_kSphere;
}
//----------------------------------------------------------------------------

#endif