anim_detail_trav.cpp

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/* Copyright, 2001 Nevrax Ltd.
 *
 * This file is part of NEVRAX NEL.
 * NEVRAX NEL is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2, or (at your option)
 * any later version.

 * NEVRAX NEL is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * General Public License for more details.

 * You should have received a copy of the GNU General Public License
 * along with NEVRAX NEL; see the file COPYING. If not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
 * MA 02111-1307, USA.
 */

#include "std3d.h"

#include "nel/3d/anim_detail_trav.h"
#include "nel/3d/hrc_trav.h"
#include "nel/3d/transform.h"
#include "nel/3d/skeleton_model.h"
#include "nel/misc/hierarchical_timer.h"
#include "nel/misc/debug.h"


using namespace NLMISC;


namespace NL3D
{


// ***************************************************************************
CAnimDetailTrav::CAnimDetailTrav()
{
    CurrentDate=0;
    // prepare some space
    _VisibleList.resize(1024);
    _CurrentNumVisibleModels= 0;
}

// ***************************************************************************
void                CAnimDetailTrav::clearVisibleList()
{
    _CurrentNumVisibleModels= 0;
}


// ***************************************************************************
void                CAnimDetailTrav::traverse()
{
    H_AUTO( NL3D_TravAnimDetail );

    // Inc the date.
    CurrentDate++;

    // Traverse all nodes of the visibility list.
    for(uint i=0; i<_CurrentNumVisibleModels; i++)
    {
        // NB: some model creation may be done by CParticleSystemModel during this pass.
        // createModel() may resize _VisibleList.
        // Hence, must test the actual _VisibleList vector, and not a temporary pointer.
        CTransform      *model= _VisibleList[i];
        // If this object has an ancestorSkeletonModel
        if(model->_AncestorSkeletonModel)
        {
            // then just skip it! because it will be parsed hierarchically by the first
            // skeletonModel whith _AncestorSkeletonModel==NULL. (only if this one is visible)
            continue;
        }
        else
        {
            // If this is a skeleton model, and because _AncestorSkeletonModel==NULL,
            // then it means that it is the Root of a hierarchy of transform that have
            // _AncestorSkeletonModel!=NULL.
            if( model->isSkeleton() )
            {
                // Then I must update hierarchically me and the sons (according to HRC hierarchy graph) of this model.
                traverseHrcRecurs(model);
            }
            else
            {
                // else, just traverse AnimDetail, an do nothing for Hrc sons
                model->traverseAnimDetail();
            }
        }
    }
}


// ***************************************************************************
void    CAnimDetailTrav::traverseHrcRecurs(CTransform *model)
{
    // first, just doIt me
    model->traverseAnimDetail();


    // then doIt my sons in Hrc.
    uint    num= model->hrcGetNumChildren();
    for(uint i=0;i<num;i++)
        traverseHrcRecurs(model->hrcGetChild(i));
}


// ***************************************************************************
void    CAnimDetailTrav::reserveVisibleList(uint numModels)
{
    // enlarge only.
    if(numModels>_VisibleList.size())
        _VisibleList.resize(numModels);
}


} // NL3D