source: GTP/trunk/App/Demos/Vis/FriendlyCulling/src/SceneEntity.cpp @ 2842

#include "SceneEntity.h"
#include "glInterface.h"
#include "Geometry.h"
#include "Material.h"
#include "RenderState.h"
#include "Shape.h"
#include <Cg/cg.h>
#include <Cg/cgGL.h>


using namespace std;


namespace CHCDemoEngine 
{


SceneEntity::SceneEntity(Transform3 *trafo): mTransform(trafo)
{
}


SceneEntity::~SceneEntity()
{
}


void SceneEntity::GetCurrentLODLevel(ShapeContainer &shapes)
{
        ShapeContainer::const_iterator sit, sit_end;

        if (mLODInfos.empty())
        {
                sit = mShapes.begin(); sit_end = mShapes.end();
        }

        float mDistance = 0.0f;

        int i = 0;

        LODInfoContainer::const_iterator lid, lid_end = mLODInfos.end();

        for (lid = mLODInfos.begin(); lid != lid_end; ++ lid)
        {
                LODInfo *lodInfo = *lid;

                if (lodInfo->mSquaredDistance > mDistance)
                {
                        sit = lodInfo->mShapes.begin(); 
                        sit_end = lodInfo->mShapes.end();
                        break;
                }
        }

        for (; sit != sit_end; ++ sit)
        {
                shapes.push_back(*sit);
        }
}


void SceneEntity::Render(RenderState *state)
{
        //if (mMaterial) mMaterial->Render(state);
        float mDistance = 0.0f;

        static ShapeContainer shapes;
        shapes.clear();

        GetCurrentLODLevel(shapes);

        ShapeContainer::const_iterator sit, sit_end = shapes.end();

        for (sit = shapes.begin(); sit != sit_end; ++ sit)
        {
                (*sit)->Render(state);
        }
}


void SceneEntity::AddShape(Shape *shape)
{
        mShapes.push_back(shape);
}


void SceneEntity::SetTransform(Transform3 *trafo)
{
        mTransform = trafo;
}


void SceneEntity::SetLastRendered(int lastRendered)
{
        mLastRendered = lastRendered;
}


int SceneEntity::GetLastRendered() const
{
        return mLastRendered;
}


int SceneEntity::CountNumTriangles()
{
        int numTriangles = 0;
        static ShapeContainer shapes;
        shapes.clear();

        GetCurrentLODLevel(shapes);

        ShapeContainer::const_iterator sit, sit_end = shapes.end();

        for (sit = shapes.begin(); sit != sit_end; ++ sit)
        {
                numTriangles += (*sit)->GetGeometry()->GetNumTriangles();
        }

        return numTriangles;
}


}