hkpPulleyConstraintData.h
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Visual C++
- /*
- *
- * 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_DYNAMICS2_PULLEY_CONSTRAINT_H
- #define HK_DYNAMICS2_PULLEY_CONSTRAINT_H
- #include <Physics/Dynamics/Constraint/hkpConstraintData.h>
- #include <Physics/ConstraintSolver/Constraint/Atom/hkpConstraintAtom.h>
- #include <Physics/ConstraintSolver/Solve/hkpSolverResults.h>
- //extern const hkClass hkpPulleyConstraintDataClass;
- /// A stiff spring constraint. It holds the constrained bodies apart at a specified distance,
- /// as if they were attached at each end of an invisible rod.
- class hkpPulleyConstraintData : public hkpConstraintData
- {
- public:
- HK_DECLARE_REFLECTION();
- hkpPulleyConstraintData();
- /// Sets the pulley up with world space information.
- /// Will compute a rest length too (so call setlength after this if needed)
- inline void setInWorldSpace(const hkTransform& bodyATransform, const hkTransform& bodyBTransform,
- const hkVector4& pivotAW, const hkVector4& pivotBW,
- const hkVector4& pulleyPivotAW, const hkVector4& pulleyPivotBW, hkReal leverageOnBodyB );
- /// Sets the pulley up with body space information.
- /// Will compute a rest length too (so call setlength after this if needed)
- /// and that is why the transforms are given (so that the length can be computed in world space)
- inline void setInBodySpace(const hkTransform& bodyATransform, const hkTransform& bodyBTransform,
- const hkVector4& pivotA, const hkVector4& pivotB,
- const hkVector4& pulleyPivotAW, const hkVector4& pulleyPivotBW, hkReal leverageOnBodyB );
- /// Gets the length of the rope. Full length == length of rope from bodyA to pulleyPivotA + leverageRation * (length of rope from body B to pulleyPivotB)
- inline hkReal getRopeLength(hkReal length);
- /// Gets the leverage ratio of the pulley. Pulley exerts 'leverageRatio' times greater forces on bodyB.
- inline hkReal getLeverageOnBodyB();
- /// Sets the length of the rope. Full length == length of rope from bodyA to pulleyPivotA + leverageRation * (length of rope from body B to pulleyPivotB)
- inline void setRopeLength(hkReal length);
- /// Sets the leverage ratio of the pulley. Pulley exerts 'leverageRatio' times greater forces on bodyB.
- inline void setLeverageOnBodyB(hkReal leverageOnBodyB);
- /// Check consistency of constraint
- hkBool isValid() const;
- /// Get type from this constraint
- virtual int getType() const;
- public:
- enum
- {
- SOLVER_RESULT_LIN_0 = 0, // linear constraint
- SOLVER_RESULT_MAX = 1
- };
- struct Runtime
- {
- HK_DECLARE_NONVIRTUAL_CLASS_ALLOCATOR( HK_MEMORY_CLASS_DYNAMICS, hkpPulleyConstraintData::Runtime );
- class hkpSolverResults m_solverResults[1/*VC6 doesn't like the scoping for SOLVER_RESULT_MAX*/];
- };
- inline const Runtime* getRuntime( hkpConstraintRuntime* runtime ){ return reinterpret_cast<Runtime*>(runtime); }
- struct Atoms
- {
- HK_DECLARE_NONVIRTUAL_CLASS_ALLOCATOR( HK_MEMORY_CLASS_DYNAMICS, hkpPulleyConstraintData::Atoms );
- HK_DECLARE_REFLECTION();
- struct hkpSetLocalTranslationsConstraintAtom m_translations;
- struct hkpPulleyConstraintAtom m_pulley;
- Atoms(){}
- // get a pointer to the first atom
- const hkpConstraintAtom* getAtoms() const { return &m_translations; }
- // get the size of all atoms (we can't use sizeof(*this) because of align16 padding)
- int getSizeOfAllAtoms() const { return hkGetByteOffsetInt(this, &m_pulley+1); }
- Atoms(hkFinishLoadedObjectFlag f) : m_translations(f), m_pulley(f) {}
- };
- HK_ALIGN16( struct Atoms m_atoms );
- public:
- // hkpConstraintData interface implementations
- virtual void getConstraintInfo( hkpConstraintData::ConstraintInfo& infoOut ) const;
- // hkpConstraintData interface implementations
- virtual void getRuntimeInfo( hkBool wantRuntime, hkpConstraintData::RuntimeInfo& infoOut ) const;
- public:
- hkpPulleyConstraintData(hkFinishLoadedObjectFlag f) : hkpConstraintData(f), m_atoms(f) {}
- };
- ///////////////////////////////////////////////////////////////
- #include <Physics/Dynamics/Constraint/Pulley/hkpPulleyConstraintData.inl>
- #endif // HK_DYNAMICS2_PULLEY_CONSTRAINT_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.
- *
- */