include/extensions/PxJointLimit.h
File members: include/extensions/PxJointLimit.h
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// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.
#ifndef PX_JOINT_LIMIT_H
#define PX_JOINT_LIMIT_H
#include "foundation/PxMath.h"
#include "common/PxTolerancesScale.h"
#include "extensions/PxJoint.h"
#include "PxPhysXConfig.h"
#if !PX_DOXYGEN
namespace physx
{
#endif
class PxJointLimitParameters
{
public:
PxReal restitution;
PxReal bounceThreshold;
PxReal stiffness;
PxReal damping;
PxJointLimitParameters() :
restitution (0.0f),
bounceThreshold (0.0f),
stiffness (0.0f),
damping (0.0f)
{
}
PxJointLimitParameters(const PxJointLimitParameters& p) :
restitution (p.restitution),
bounceThreshold (p.bounceThreshold),
stiffness (p.stiffness),
damping (p.damping)
{
}
PX_INLINE bool isValid() const
{
return PxIsFinite(restitution) && restitution >= 0 && restitution <= 1 &&
PxIsFinite(stiffness) && stiffness >= 0 &&
PxIsFinite(damping) && damping >= 0 &&
PxIsFinite(bounceThreshold) && bounceThreshold >= 0;
}
PX_INLINE bool isSoft() const
{
return damping>0 || stiffness>0;
}
protected:
~PxJointLimitParameters() {}
};
class PxJointLinearLimit : public PxJointLimitParameters
{
public:
PxReal value;
PxJointLinearLimit(PxReal extent) : value(extent)
{
}
PxJointLinearLimit(PxReal extent, const PxSpring& spring) : value(extent)
{
stiffness = spring.stiffness;
damping = spring.damping;
}
PX_INLINE bool isValid() const
{
return PxJointLimitParameters::isValid() &&
PxIsFinite(value) &&
value > 0.0f;
}
};
class PxJointLinearLimitPair : public PxJointLimitParameters
{
public:
PxReal upper, lower;
PxJointLinearLimitPair(const PxTolerancesScale& scale, PxReal lowerLimit = -PX_MAX_F32/3.0f, PxReal upperLimit = PX_MAX_F32/3.0f) :
upper(upperLimit),
lower(lowerLimit)
{
bounceThreshold = 2.0f*scale.length;
}
PxJointLinearLimitPair(PxReal lowerLimit, PxReal upperLimit, const PxSpring& spring) :
upper(upperLimit),
lower(lowerLimit)
{
stiffness = spring.stiffness;
damping = spring.damping;
}
PX_INLINE bool isValid() const
{
return PxJointLimitParameters::isValid() &&
PxIsFinite(upper) && PxIsFinite(lower) && upper >= lower &&
PxIsFinite(upper - lower);
}
};
class PxJointAngularLimitPair : public PxJointLimitParameters
{
public:
PxReal upper, lower;
PxJointAngularLimitPair(PxReal lowerLimit, PxReal upperLimit) :
upper(upperLimit),
lower(lowerLimit)
{
bounceThreshold = 0.5f;
}
PxJointAngularLimitPair(PxReal lowerLimit, PxReal upperLimit, const PxSpring& spring) :
upper(upperLimit),
lower(lowerLimit)
{
stiffness = spring.stiffness;
damping = spring.damping;
}
PX_INLINE bool isValid() const
{
return PxJointLimitParameters::isValid() &&
PxIsFinite(upper) && PxIsFinite(lower) && upper >= lower;
}
};
class PxJointLimitCone : public PxJointLimitParameters
{
public:
PxReal yAngle;
PxReal zAngle;
PxJointLimitCone(PxReal yLimitAngle, PxReal zLimitAngle) :
yAngle(yLimitAngle),
zAngle(zLimitAngle)
{
bounceThreshold = 0.5f;
}
PxJointLimitCone(PxReal yLimitAngle, PxReal zLimitAngle, const PxSpring& spring) :
yAngle(yLimitAngle),
zAngle(zLimitAngle)
{
stiffness = spring.stiffness;
damping = spring.damping;
}
PX_INLINE bool isValid() const
{
return PxJointLimitParameters::isValid() &&
PxIsFinite(yAngle) && yAngle>0 && yAngle<PxPi &&
PxIsFinite(zAngle) && zAngle>0 && zAngle<PxPi;
}
};
class PxJointLimitPyramid : public PxJointLimitParameters
{
public:
PxReal yAngleMin;
PxReal yAngleMax;
PxReal zAngleMin;
PxReal zAngleMax;
PxJointLimitPyramid(PxReal yLimitAngleMin, PxReal yLimitAngleMax, PxReal zLimitAngleMin, PxReal zLimitAngleMax) :
yAngleMin(yLimitAngleMin),
yAngleMax(yLimitAngleMax),
zAngleMin(zLimitAngleMin),
zAngleMax(zLimitAngleMax)
{
bounceThreshold = 0.5f;
}
PxJointLimitPyramid(PxReal yLimitAngleMin, PxReal yLimitAngleMax, PxReal zLimitAngleMin, PxReal zLimitAngleMax, const PxSpring& spring) :
yAngleMin(yLimitAngleMin),
yAngleMax(yLimitAngleMax),
zAngleMin(zLimitAngleMin),
zAngleMax(zLimitAngleMax)
{
stiffness = spring.stiffness;
damping = spring.damping;
}
PX_INLINE bool isValid() const
{
return PxJointLimitParameters::isValid() &&
PxIsFinite(yAngleMin) && yAngleMin>-PxPi && yAngleMin<PxPi &&
PxIsFinite(yAngleMax) && yAngleMax>-PxPi && yAngleMax<PxPi &&
PxIsFinite(zAngleMin) && zAngleMin>-PxPi && zAngleMin<PxPi &&
PxIsFinite(zAngleMax) && zAngleMax>-PxPi && zAngleMax<PxPi &&
yAngleMax>=yAngleMin && zAngleMax>=zAngleMin;
}
};
#if !PX_DOXYGEN
} // namespace physx
#endif
#endif