PxGeometryHelpers.h

++ // Copyright (c) 2001-2004 NovodeX AG. All rights reserved.

++ // Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.

++ // SPDX-FileCopyrightText: Copyright (c) 2008-2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.

++ // SPDX-License-Identifier: Apache-2.0

++

++ #ifndef PX_GEOMETRY_HELPERS_H

++ #define PX_GEOMETRY_HELPERS_H

++

++ #include "foundation/PxPlane.h"

++ #include "foundation/PxTransform.h"

++ #include "foundation/PxUnionCast.h"

++ #include "common/PxPhysXCommonConfig.h"

++ #include "geometry/PxGeometry.h"

++ #include "geometry/PxBoxGeometry.h"

++ #include "geometry/PxSphereGeometry.h"

++ #include "geometry/PxCapsuleGeometry.h"

++ #include "geometry/PxPlaneGeometry.h"

++ #include "geometry/PxConvexMeshGeometry.h"

++ #include "geometry/PxHeightFieldGeometry.h"

++ #include "geometry/PxParticleSystemGeometry.h"

++ #include "geometry/PxTetrahedronMeshGeometry.h"

++ #include "geometry/PxCustomGeometry.h"

++ #include "geometry/PxConvexCoreGeometry.h"

++

++ #if !PX_DOXYGEN

++ namespace physx

++ {

++ #endif

++

++ /**

++ \brief Geometry holder class

++

++ This class contains enough space to hold a value of any PxGeometry subtype.

++

++ Its principal use is as a convenience class to allow geometries to be returned polymorphically from functions.

++ */

++

++ PX_ALIGN_PREFIX(8)

++ class PxGeometryHolder

++ {

++ 	class PxInvalidGeometry : public PxGeometry

++ 	{

++ 	public:

++ 		PX_INLINE PxInvalidGeometry() : PxGeometry(PxGeometryType::eINVALID)	{}

++ 	};

++

++ public:

++ 	PX_FORCE_INLINE PxGeometryType::Enum getType() const

++ 	{

++ 		return any().getType();

++ 	}

++

++ 	PX_FORCE_INLINE PxGeometry&	any()

++ 	{

++ 		return *PxUnionCast<PxGeometry*>(&bytes.geometry);

++ 	}

++

++ 	PX_FORCE_INLINE const PxGeometry&	any()	const

++ 	{

++ 		return *PxUnionCast<const PxGeometry*>(&bytes.geometry);

++ 	}

++

++ //! \cond

++ 	PX_FORCE_INLINE PxSphereGeometry&					sphere()				{ return get<PxSphereGeometry, PxGeometryType::eSPHERE>();							}

++ 	PX_FORCE_INLINE const PxSphereGeometry&				sphere()		const	{ return get<const PxSphereGeometry, PxGeometryType::eSPHERE>();					}

++

++ 	PX_FORCE_INLINE PxPlaneGeometry&					plane()					{ return get<PxPlaneGeometry, PxGeometryType::ePLANE>();							}

++ 	PX_FORCE_INLINE const PxPlaneGeometry&				plane()			const	{ return get<const PxPlaneGeometry, PxGeometryType::ePLANE>();						}

++

++ 	PX_FORCE_INLINE PxCapsuleGeometry&					capsule()				{ return get<PxCapsuleGeometry, PxGeometryType::eCAPSULE>();						}

++ 	PX_FORCE_INLINE const PxCapsuleGeometry&			capsule()		const	{ return get<const PxCapsuleGeometry, PxGeometryType::eCAPSULE>();					}

++

++ 	PX_FORCE_INLINE PxBoxGeometry&						box()					{ return get<PxBoxGeometry, PxGeometryType::eBOX>();								}

++ 	PX_FORCE_INLINE const PxBoxGeometry&				box()			const	{ return get<const PxBoxGeometry, PxGeometryType::eBOX>();							}

++

++ 	PX_FORCE_INLINE PxConvexCoreGeometry&				convexCore()			{ return get<PxConvexCoreGeometry, PxGeometryType::eCONVEXCORE>();					}

++ 	PX_FORCE_INLINE const PxConvexCoreGeometry&			convexCore()	const	{ return get<const PxConvexCoreGeometry, PxGeometryType::eCONVEXCORE>();			}

++

++ 	PX_FORCE_INLINE PxConvexMeshGeometry&				convexMesh()			{ return get<PxConvexMeshGeometry, PxGeometryType::eCONVEXMESH>();					}

++ 	PX_FORCE_INLINE const PxConvexMeshGeometry&			convexMesh()	const	{ return get<const PxConvexMeshGeometry, PxGeometryType::eCONVEXMESH>();			}

++

++ 	PX_FORCE_INLINE PxTetrahedronMeshGeometry&			tetMesh()				{ return get<PxTetrahedronMeshGeometry, PxGeometryType::eTETRAHEDRONMESH>();		}

++ 	PX_FORCE_INLINE const PxTetrahedronMeshGeometry&	tetMesh()		const	{ return get<const PxTetrahedronMeshGeometry, PxGeometryType::eTETRAHEDRONMESH>();	}

++

++ 	PX_FORCE_INLINE PxTriangleMeshGeometry&				triangleMesh()			{ return get<PxTriangleMeshGeometry, PxGeometryType::eTRIANGLEMESH>();				}

++ 	PX_FORCE_INLINE const PxTriangleMeshGeometry&		triangleMesh()	const	{ return get<const PxTriangleMeshGeometry, PxGeometryType::eTRIANGLEMESH>();		}

++

++ 	PX_FORCE_INLINE PxHeightFieldGeometry&				heightField()			{ return get<PxHeightFieldGeometry, PxGeometryType::eHEIGHTFIELD>();				}

++ 	PX_FORCE_INLINE const PxHeightFieldGeometry&		heightField()	const	{ return get<const PxHeightFieldGeometry, PxGeometryType::eHEIGHTFIELD>();			}

++

++ 	PX_FORCE_INLINE PxParticleSystemGeometry&			particleSystem()		{ return get<PxParticleSystemGeometry, PxGeometryType::ePARTICLESYSTEM>();			}

++ 	PX_FORCE_INLINE const PxParticleSystemGeometry&		particleSystem() const	{ return get<const PxParticleSystemGeometry, PxGeometryType::ePARTICLESYSTEM>();	}

++

++ 	PX_FORCE_INLINE PxCustomGeometry&					custom()				{ return get<PxCustomGeometry, PxGeometryType::eCUSTOM>();							}

++ 	PX_FORCE_INLINE const PxCustomGeometry&				custom()		const	{ return get<const PxCustomGeometry, PxGeometryType::eCUSTOM>();					}

++ //! \endcond

++

++ 	PX_FORCE_INLINE void storeAny(const PxGeometry& geometry)

++ 	{

++ 		PX_ASSERT_WITH_MESSAGE(	(geometry.getType() >= PxGeometryType::eSPHERE) &&

++ 								(geometry.getType() < PxGeometryType::eGEOMETRY_COUNT),

++ 								"Unexpected GeometryType in PxGeometryHolder::storeAny");

++

++ 		switch(geometry.getType())

++ 		{

++ 		case PxGeometryType::eSPHERE:			put<PxSphereGeometry>(geometry);			break;

++ 		case PxGeometryType::ePLANE:			put<PxPlaneGeometry>(geometry);				break;

++ 		case PxGeometryType::eCAPSULE:			put<PxCapsuleGeometry>(geometry);			break;

++ 		case PxGeometryType::eBOX:				put<PxBoxGeometry>(geometry);				break;

++ 		case PxGeometryType::eCONVEXCORE:		put<PxConvexCoreGeometry>(geometry);		break;

++ 		case PxGeometryType::eCONVEXMESH:		put<PxConvexMeshGeometry>(geometry);		break;

++ 		case PxGeometryType::eTRIANGLEMESH:		put<PxTriangleMeshGeometry>(geometry);		break;

++ 		case PxGeometryType::eTETRAHEDRONMESH:	put<PxTetrahedronMeshGeometry>(geometry);	break;

++ 		case PxGeometryType::eHEIGHTFIELD:		put<PxHeightFieldGeometry>(geometry);		break;

++ 		case PxGeometryType::ePARTICLESYSTEM:	put<PxParticleSystemGeometry>(geometry);	break;

++ 		case PxGeometryType::eCUSTOM:			put<PxCustomGeometry>(geometry);			break;

++ 		case PxGeometryType::eGEOMETRY_COUNT:

++ 		case PxGeometryType::eINVALID:														break;

++ 		}

++ 	}

++

++ 	PX_FORCE_INLINE	PxGeometryHolder()							{ put<PxInvalidGeometry>(PxInvalidGeometry());	}

++ 	PX_FORCE_INLINE	PxGeometryHolder(const PxGeometry& geometry){ storeAny(geometry);							}

++

++ 	private:

++ 		template<typename T> void put(const PxGeometry& geometry)

++ 		{

++ 			static_cast<T&>(any()) = static_cast<const T&>(geometry);

++ 		}

++

++ 		template<typename T, PxGeometryType::Enum type> T& get()

++ 		{

++ 			PX_ASSERT(getType() == type);

++ 			return static_cast<T&>(any());

++ 		}

++

++ 		template<typename T, PxGeometryType::Enum type> T& get() const

++ 		{

++ 			PX_ASSERT(getType() == type);

++ 			return static_cast<T&>(any());

++ 		}

++

++ 	union {

++ 		PxU8	geometry[sizeof(PxGeometry)];

++ 		PxU8	box[sizeof(PxBoxGeometry)];

++ 		PxU8	sphere[sizeof(PxSphereGeometry)];

++ 		PxU8	capsule[sizeof(PxCapsuleGeometry)];

++ 		PxU8	plane[sizeof(PxPlaneGeometry)];

++ 		PxU8	convex[sizeof(PxConvexCoreGeometry)];

++ 		PxU8	convexMesh[sizeof(PxConvexMeshGeometry)];

++ 		PxU8	tetMesh[sizeof(PxTetrahedronMeshGeometry)];

++ 		PxU8	mesh[sizeof(PxTriangleMeshGeometry)];

++ 		PxU8	heightfield[sizeof(PxHeightFieldGeometry)];

++ 		PxU8	particleSystem[sizeof(PxParticleSystemGeometry)];

++ 		PxU8	custom[sizeof(PxCustomGeometry)];

++ 	} bytes;

++ }

++ PX_ALIGN_SUFFIX(8);

++

++ #if !PX_DOXYGEN

++ } // namespace physx

++ #endif

++

++ #endif

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