#ifndef _ViewCell_H__
#define _ViewCell_H__

#include "Mesh.h"
#include "Containers.h"
#include "Ray.h"

//namespace GtpVisibilityPreprocessor {
  
class BspInterior;
class BspPvs;
struct Triangle3;
class BspLeaf;

/**
	View cell with an optional mesh representation
*/
class ViewCell: public MeshInstance
{
public:
	ViewCell();
	/** Constructor taking a mesh representing the shape of	the viewcell.
	*/
	ViewCell(Mesh *mesh);
	/** Returns Pvs. 
	*/
	const ViewCellPvs &GetPvs() const;
	ViewCellPvs &GetPvs();

	int Type() const;
	
	/** Adds a passing ray to the passing ray container.
	*/
	void AddPassingRay(const Ray &ray, const int contributions);	


	/// Ray set description of the rays passing through this node.	
	PassingRaySet mPassingRays;

	/// Rays piercing this view cell.
	RayContainer mPiercingRays;

protected:

	/// the potentially visible objects
	ViewCellPvs mPvs;
};

class BspViewCell: public ViewCell
{
public:
	BspViewCell(): mBspLeaves(0) {}
	BspViewCell(Mesh *mesh): 
	ViewCell(mesh), mBspLeaves(0) {}

	/// Leaves which hold this view cell.
	vector<BspLeaf *> mBspLeaves;
};

#endif