mgcswitchnode.cpp

《3D游戏引擎设计》的源码

// 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
//
// RESTRICTED USE SOURCE CODE
// http://www.magic-software.com/License/restricted.pdf

#include "MgcSwitchNode.h"

MgcImplementRTTI(MgcSwitchNode,MgcNode);
MgcImplementStream(MgcSwitchNode);

//----------------------------------------------------------------------------
MgcSwitchNode::MgcSwitchNode (unsigned int uiQuantity, unsigned int uiGrowBy)
    :
    MgcNode(uiQuantity,uiGrowBy)
{
    m_uiActiveChild = SN_INVALID_CHILD;
}
//----------------------------------------------------------------------------
void MgcSwitchNode::SetActiveChild (unsigned int uiActiveChild)
{
    assert( uiActiveChild == SN_INVALID_CHILD
        ||  uiActiveChild < GetQuantity() );

    m_uiActiveChild = uiActiveChild;
}
//----------------------------------------------------------------------------
void MgcSwitchNode::Draw (MgcRenderer& rkRenderer) const
{
    if ( m_uiActiveChild != SN_INVALID_CHILD )
    {
        MgcSpatial* pkChild = m_aspkChild[m_uiActiveChild];
        if ( pkChild )
            pkChild->OnDraw(rkRenderer);
    }
}
//----------------------------------------------------------------------------

//---------------------------------------------------------------------------
// streaming
//---------------------------------------------------------------------------
MgcObject* MgcSwitchNode::Factory (MgcStream& rkStream)
{
    MgcSwitchNode* pkObject = new MgcSwitchNode;
    MgcStream::Link* pkLink = new MgcStream::Link(pkObject);
    pkObject->Load(rkStream,pkLink);
    return pkObject;
}
//---------------------------------------------------------------------------
void MgcSwitchNode::Load (MgcStream& rkStream, MgcStream::Link* pkLink)
{
    MgcNode::Load(rkStream,pkLink);
}
//---------------------------------------------------------------------------
void MgcSwitchNode::Link (MgcStream& rkStream, MgcStream::Link* pkLink)
{
    MgcNode::Link(rkStream,pkLink);
}
//---------------------------------------------------------------------------
bool MgcSwitchNode::Register (MgcStream& rkStream)
{
    return MgcNode::Register(rkStream);
}
//---------------------------------------------------------------------------
void MgcSwitchNode::Save (MgcStream& rkStream)
{
    MgcNode::Save(rkStream);
}
//---------------------------------------------------------------------------