hkpWeldingUtility.h
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- /*
- *
- * 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_WELDINGUTILITY_H
- #define HK_WELDINGUTILITY_H
- #include <Common/Base/hkBase.h>
- /// Utility functions for building and querying at runtime welding information
- class hkpWeldingUtility
- {
- public:
- HK_DECLARE_REFLECTION();
- //
- // Initialization methods
- //
- // This function must be called at initialization. It is called by the hkpWorld constructor.
- static void HK_CALL initWeldingTable(hkReal edgeNormalSnapDeltaAngle, hkReal triangleNormalSnapDeltaAngle);
- //
- // Runtime methods
- //
- // Note: The numbering of this enum is used as offsets into 'm_sinCosTable' during the actual snapping of the collision normal
- // to retrieve the proper snapping vector information.
- enum WeldingType
- {
- WELDING_TYPE_ANTICLOCKWISE = 0,
- WELDING_TYPE_CLOCKWISE = 4,
- WELDING_TYPE_TWO_SIDED = 5,
- WELDING_TYPE_NONE = 6
- };
- // Note: The numbering of this enum is used as offsets into 'm_sinCosTable' during the actual snapping of the collision normal
- // to retrieve the proper snapping vector information.
- enum SectorType
- {
- ACCEPT_0 = 1,
- SNAP_0 = 0,
- REJECT = 2,
- SNAP_1 = 4,
- ACCEPT_1 = 3
- };
- // For a given edge of a triangle, get the snap vector
- static HK_FORCE_INLINE void calcSnapVector( const hkVector4& triangleNormal, const hkVector4& edge, int edgeBitcode, SectorType sector, hkVector4& snapVectorOut );
- // For a given edge of a triangle and a corresponding collisionNormal, determine whether it should be snapped
- static HK_FORCE_INLINE SectorType getSector(const hkVector4& triangleNormal, const hkVector4& collisionNormal, int edgeBitcode);
-
- // Snap a collision normal based on edge info
- static HK_FORCE_INLINE void snapCollisionNormal( const hkVector4& triangleNormal, const hkVector4& edge, int edgeBitcode, SectorType sector, hkVector4& collisionNormalInOut );
- // Determine whether an collision normal should be snapped for one sided welding
- static HK_FORCE_INLINE hkBool shouldSnapOneSided(hkpWeldingUtility::WeldingType weldingType, const hkVector4& triangleNormal, const hkVector4& collisionNormal, int edgeBitcode );
- // Get the snap vector for a collision with one sided welding
- static HK_FORCE_INLINE void calcSnapVectorOneSided( const hkVector4& triangleNormal, const hkVector4& edge, int edgeBitcode, hkpWeldingUtility::WeldingType weldingType, hkVector4& snapVectorOut );
- enum NumAngles
- {
- NUM_ANGLES = 31
- };
- public:
- struct SinCosTableEntry
- {
- HK_DECLARE_NONVIRTUAL_CLASS_ALLOCATOR( HK_MEMORY_CLASS_COLLIDE, hkpWeldingUtility::SinCosTableEntry );
- hkReal m_cosAccept0;
- hkReal m_sinAccept0;
- hkReal m_cosSnap0;
- hkReal m_cosSnap1;
- hkReal m_cosAccept1;
- hkReal m_sinAccept1;
- };
- static HK_ALIGN16(SinCosTableEntry m_sinCosTable[NUM_ANGLES+1]); // the 1 is needed to make the whole array size a multiple of 6 for the spu
- };
- #include <Physics/Collide/Util/Welding/hkpWeldingUtility.inl>
- #endif // HK_WELDINGUTILITY_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.
- *
- */