/* 
 * 
 * Confidential Information of Telekinesys Research Limited (t/a Havok). Not for disclosure or distribution without Havok's
 * prior written consent. This software contains code, techniques and know-how which is confidential and proprietary to Havok.
 * Level 2 and Level 3 source code contains trade secrets of Havok. Havok Software (C) Copyright 1999-2009 Telekinesys Research Limited t/a Havok. All Rights Reserved. Use of this software is subject to the terms of an end user license agreement.
 * 
 */

#ifndef HK_BACKFACES_CULLED_RAY_HIT_COLLECTOR_H
#define HK_BACKFACES_CULLED_RAY_HIT_COLLECTOR_H

#include <Physics/Collide/Shape/Query/hkpRayHitCollector.h>
#include <Physics/Collide/Query/CastUtil/hkpWorldRayCastOutput.h>
#include <Common/Base/Algorithm/Sort/hkSort.h>

/// hkpClosestRayHitCollector collects the closest contact point and information about a cast along a linear path.
/// Both the closest contact point for non-penetrating (cast) and for penetrating cases are collected.
class BackfacesCulledRayHitCollector : public hkpRayHitCollector
{
public:
	/// Constructor calls reset.
	inline BackfacesCulledRayHitCollector(hkVector4& rayDirection);

	/// Resets this structure if you want to reuse it for another raycast.
	inline void reset();

	inline virtual ~BackfacesCulledRayHitCollector();

	/// Get all the hits
	inline const hkArray<hkpWorldRayCastOutput>& getHits() const;

	/// Sort the hits so that the closest hits occur earliest in the hit list
	void sortHits(); 

protected:
	virtual void addRayHit( const hkpCdBody& cdBody, const hkpShapeRayCastCollectorOutput& hitInfo );

protected:
	hkInplaceArray<hkpWorldRayCastOutput,8> m_hits;
	hkVector4 m_rayDirection;
};

#include <Demos/Physics/UseCase/CustomCollectors/BackfacesCulledRayHitCollector/BackfacesCulledRayHitCollector.inl>

#endif //HK_BACKFACES_CULLED_RAY_HIT_COLLECTOR_H

/*
* Havok SDK - NO SOURCE PC DOWNLOAD, BUILD(#20090216)
* 
* Confidential Information of Havok.  (C) Copyright 1999-2009
* Telekinesys Research Limited t/a Havok. All Rights Reserved. The Havok
* Logo, and the Havok buzzsaw logo are trademarks of Havok.  Title, ownership
* rights, and intellectual property rights in the Havok software remain in
* Havok and/or its suppliers.
* 
* Use of this software for evaluation purposes is subject to and indicates
* acceptance of the End User licence Agreement for this product. A copy of
* the license is included with this software and is also available at www.havok.com/tryhavok.
* 
*/
