#include "ViewCell.h"
#include "Mesh.h"
#include "Intersectable.h"
#include "MeshKdTree.h"
#include "Triangle3.h"
#include <time.h>
#include <iomanip>

ViewCell::ViewCell(): 
MeshInstance(NULL), 
mPiercingRays(0),
mArea(0),
mVolume(0)
{
}

ViewCell::ViewCell(Mesh *mesh): 
MeshInstance(mesh), 
mPiercingRays(0),
mArea(0),
mVolume(0)
{
}


const ObjectPvs &ViewCell::GetPvs() const
{
	return mPvs;
}

ObjectPvs &ViewCell::GetPvs()
{
	return mPvs;
}


int ViewCell::Type() const 
{ 
	return VIEW_CELL; 
}


void ViewCell::AddPassingRay(const Ray &ray, const int contributions)
{
	mPassingRays.AddRay(ray, contributions);
}


float ViewCell::GetVolume() const
{
	return mVolume;
}


void ViewCell::SetVolume(float volume) 
{
	mVolume = volume;
}


void ViewCell::SetMesh(Mesh *mesh)
{
	mMesh = mesh;
}


void ViewCell::UpdateViewCellsStats(ViewCellsStatistics &vcStat)
{
	++ vcStat.viewCells;
		
	const int pvsSize = mPvs.GetSize();

	vcStat.pvs += pvsSize;

	if (pvsSize == 0)
		++ vcStat.emptyPvs;

	if (pvsSize > vcStat.maxPvs)
		vcStat.maxPvs = pvsSize;

	if (pvsSize < vcStat.minPvs)
		vcStat.minPvs = pvsSize;
}

float ViewCell::GetArea() const
{
	return mArea;
}


void ViewCell::SetArea(float area) 
{
	mArea = area;
}


/************************************************************************/
/*                class ViewCellsStatistics implementation              */
/************************************************************************/

void ViewCellsStatistics::Print(ostream &app) const
{
	app << "=========== View Cells Statistics ===============\n";

	app << setprecision(4);

	//app << "#N_CTIME  ( Construction time [s] )\n" << Time() << " \n";

	app << "#N_OVERALLPVS ( objects in PVS )\n" << pvs << endl;

	app << "#N_PMAXPVS ( largest PVS )\n" << maxPvs << endl;

	app << "#N_PMINPVS ( smallest PVS )\n" << minPvs << endl;

	app << "#N_PAVGPVS ( average PVS )\n" << AvgPvs() << endl;

	app << "#N_PEMPTYPVS ( view cells with empty PVS )\n" << emptyPvs << endl;

	app << "#N_VIEWCELLS ( number of view cells)\n" << viewCells << endl;

	app << "#N_AVGLEAVES (average number of leaves per view cell )\n" << AvgLeaves() << endl;

	app << "#N_MAXLEAVES ( maximal number of leaves per view cell )\n" << maxLeaves << endl;
	
	app << "========== End of View Cells Statistics ==========\n";
}