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// Geometric Tools, LLC
// Copyright (c) 1998-2014
// Distributed under the Boost Software License, Version 1.0.
// http://www.boost.org/LICENSE_1_0.txt
// http://www.geometrictools.com/License/Boost/LICENSE_1_0.txt
//
// File Version: 5.0.1 (2010/10/01)
#include "Wm5MathematicsPCH.h"
#include "Wm5IntrRay3Capsule3.h"
#include "Wm5DistRay3Segment3.h"
#include "Wm5IntrLine3Capsule3.h"
namespace Wm5
{
//----------------------------------------------------------------------------
template <typename Real>
IntrRay3Capsule3<Real>::IntrRay3Capsule3 (const Ray3<Real>& rkRay,
const Capsule3<Real>& rkCapsule)
:
mRay(&rkRay),
mCapsule(&rkCapsule)
{
}
//----------------------------------------------------------------------------
template <typename Real>
const Ray3<Real>& IntrRay3Capsule3<Real>::GetRay () const
{
return *mRay;
}
//----------------------------------------------------------------------------
template <typename Real>
const Capsule3<Real>& IntrRay3Capsule3<Real>::GetCapsule () const
{
return *mCapsule;
}
//----------------------------------------------------------------------------
template <typename Real>
bool IntrRay3Capsule3<Real>::Test ()
{
Real distance = DistRay3Segment3<Real>(*mRay, mCapsule->Segment).Get();
return distance <= mCapsule->Radius;
}
//----------------------------------------------------------------------------
template <typename Real>
bool IntrRay3Capsule3<Real>::Find ()
{
Real t[2];
int quantity = IntrLine3Capsule3<Real>::Find(mRay->Origin,
mRay->Direction, *mCapsule, t);
mQuantity = 0;
for (int i = 0; i < quantity; ++i)
{
if (t[i] >= (Real)0)
{
mPoint[mQuantity++] = mRay->Origin + t[i]*mRay->Direction;
}
}
if (mQuantity == 2)
{
mIntersectionType = IT_SEGMENT;
}
else if (mQuantity == 1)
{
mIntersectionType = IT_POINT;
}
else
{
mIntersectionType = IT_EMPTY;
}
return mIntersectionType != IT_EMPTY;
}
//----------------------------------------------------------------------------
template <typename Real>
int IntrRay3Capsule3<Real>::GetQuantity () const
{
return mQuantity;
}
//----------------------------------------------------------------------------
template <typename Real>
const Vector3<Real>& IntrRay3Capsule3<Real>::GetPoint (int i) const
{
return mPoint[i];
}
//----------------------------------------------------------------------------
//----------------------------------------------------------------------------
// Explicit instantiation.
//----------------------------------------------------------------------------
template WM5_MATHEMATICS_ITEM
class IntrRay3Capsule3<float>;
template WM5_MATHEMATICS_ITEM
class IntrRay3Capsule3<double>;
//----------------------------------------------------------------------------
}
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