physxCAPI/physxCDLL/include/geometry/PxCapsuleGeometry.h
2023-08-11 10:55:58 +08:00

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// Copyright (c) 2008-2023 NVIDIA Corporation. All rights reserved.
// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.
#ifndef PX_CAPSULE_GEOMETRY_H
#define PX_CAPSULE_GEOMETRY_H
/** \addtogroup geomutils
@{
*/
#include "geometry/PxGeometry.h"
#include "foundation/PxFoundationConfig.h"
#if !PX_DOXYGEN
namespace physx
{
#endif
/**
\brief Class representing the geometry of a capsule.
Capsules are shaped as the union of a cylinder of length 2 * halfHeight and with the
given radius centered at the origin and extending along the x axis, and two hemispherical ends.
\note The scaling of the capsule is expected to be baked into these values, there is no additional scaling parameter.
The function PxTransformFromSegment is a helper for generating an appropriate transform for the capsule from the capsule's interior line segment.
@see PxTransformFromSegment
*/
class PxCapsuleGeometry : public PxGeometry
{
public:
/**
\brief Constructor, initializes to a capsule with passed radius and half height.
*/
PX_INLINE PxCapsuleGeometry(PxReal radius_=0.0f, PxReal halfHeight_=0.0f) : PxGeometry(PxGeometryType::eCAPSULE), radius(radius_), halfHeight(halfHeight_) {}
/**
\brief Copy constructor.
\param[in] that Other object
*/
PX_INLINE PxCapsuleGeometry(const PxCapsuleGeometry& that) : PxGeometry(that), radius(that.radius), halfHeight(that.halfHeight) {}
/**
\brief Assignment operator
*/
PX_INLINE void operator=(const PxCapsuleGeometry& that)
{
mType = that.mType;
radius = that.radius;
halfHeight = that.halfHeight;
}
/**
\brief Returns true if the geometry is valid.
\return True if the current settings are valid.
\note A valid capsule has radius > 0, halfHeight >= 0.
It is illegal to call PxRigidActor::createShape and PxPhysics::createShape with a capsule that has zero radius or height.
@see PxRigidActor::createShape, PxPhysics::createShape
*/
PX_INLINE bool isValid() const;
public:
/**
\brief The radius of the capsule.
*/
PxReal radius;
/**
\brief half of the capsule's height, measured between the centers of the hemispherical ends.
*/
PxReal halfHeight;
};
PX_INLINE bool PxCapsuleGeometry::isValid() const
{
if(mType != PxGeometryType::eCAPSULE)
return false;
if(!PxIsFinite(radius) || !PxIsFinite(halfHeight))
return false;
if(radius <= 0.0f || halfHeight < 0.0f)
return false;
return true;
}
#if !PX_DOXYGEN
} // namespace physx
#endif
/** @} */
#endif