#ifndef _BoundingBoxConverter_H__
#define _BoundingBoxConverter_H__
#include <vector>
#include "AxisAlignedBox3.h"

namespace GtpVisibilityPreprocessor {

/** helper struct used to identify objects with similar bounding boxes.
*/
struct IndexedBoundingBox: public std::pair<int, AxisAlignedBox3>
{
	typedef std::pair<int, AxisAlignedBox3> IndexedBoundingBoxParent;

	IndexedBoundingBox(int idx, const AxisAlignedBox3 &box): IndexedBoundingBoxParent(idx, box)
	{}
};

/** Class used to assign unique indices to objects using a comparison of bounding boxes.
*/
class BoundingBoxConverter
{
public:
	/** Takes a vector of indexed bounding boxes and uses it to identify objects with a similar bounding box
		and assigns them their index (id).
		The objects are returned in the object container.
		
		@returns true if conversion was successful
	*/
	virtual bool IdentifyObjects(const IndexedBoundingBoxContainer &iboxes,
								 ObjectContainer &objects) const
	{
		// default: do nothing as we assume that a unique id is already assigned to the objects.
		return true;
	}
};

}

#endif // _BoundingBoxConverter_H__