/usr/include/stk/Sphere.h is in libstk0-dev 4.4.4-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 | #ifndef STK_SPHERE_H
#define STK_SPHERE_H
#include "Stk.h"
#include "Vector3D.h"
namespace stk {
/***************************************************/
/*! \class Sphere
\brief STK sphere class.
This class implements a spherical ball with
radius, mass, position, and velocity parameters.
by Perry R. Cook, 1995-2012.
*/
/***************************************************/
class Sphere : public Stk
{
public:
//! Constructor taking an initial radius value.
Sphere( StkFloat radius = 1.0 ) { radius_ = radius; mass_ = 1.0; };
//! Set the 3D center position of the sphere.
void setPosition( StkFloat x, StkFloat y, StkFloat z ) { position_.setXYZ(x, y, z); };
//! Set the 3D velocity of the sphere.
void setVelocity( StkFloat x, StkFloat y, StkFloat z ) { velocity_.setXYZ(x, y, z); };
//! Set the radius of the sphere.
void setRadius( StkFloat radius ) { radius_ = radius; };
//! Set the mass of the sphere.
void setMass( StkFloat mass ) { mass_ = mass; };
//! Get the current position of the sphere as a 3D vector.
Vector3D* getPosition( void ) { return &position_; };
//! Get the relative position of the given point to the sphere as a 3D vector.
Vector3D* getRelativePosition( Vector3D *position );
//! Set the velcoity of the sphere as a 3D vector.
StkFloat getVelocity( Vector3D* velocity );
//! Returns the distance from the sphere boundary to the given position (< 0 if inside).
StkFloat isInside( Vector3D *position );
//! Get the current sphere radius.
StkFloat getRadius( void ) { return radius_; };
//! Get the current sphere mass.
StkFloat getMass( void ) { return mass_; };
//! Increase the current sphere velocity by the given 3D components.
void addVelocity( StkFloat x, StkFloat y, StkFloat z );
//! Move the sphere for the given time increment.
void tick( StkFloat timeIncrement );
private:
Vector3D position_;
Vector3D velocity_;
Vector3D workingVector_;
StkFloat radius_;
StkFloat mass_;
};
inline void Sphere::tick( StkFloat timeIncrement )
{
position_.setX(position_.getX() + (timeIncrement * velocity_.getX()));
position_.setY(position_.getY() + (timeIncrement * velocity_.getY()));
position_.setZ(position_.getZ() + (timeIncrement * velocity_.getZ()));
};
} // stk namespace
#endif
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