Class Point2F

Engine/source/math/mPoint2.h:101–186

------------------------------------------------------------------------------ 2D floating-point point.

//------------------------------------------------------------------------------
/// 2D floating-point point.
class Point2F
{
   //-------------------------------------- Public data
  public:
   F32 x;
   F32 y;

  public:
   Point2F();                           ///< Create uninitialized point.
   Point2F(const Point2F&);             ///< Copy constructor
   Point2F(F32 _x, F32 _y);             ///< Create point from co-ordinates.

   //-------------------------------------- Non-math mutators and misc functions
  public:
   void set(F32 _x, F32 _y);            ///< Set point's co-ordinates.

   void setMin(const Point2F&);         ///< Store lesser co-ordinates.
   void setMax(const Point2F&);         ///< Store greater co-ordinates.

   /// Interpolate from a to b, based on c.
   ///
   /// @param   a   Starting point.
   /// @param   b   Ending point.
   /// @param   c   Interpolation factor (0.0 .. 1.0).
   void interpolate(const Point2F& a, const Point2F& b, const F32 c);

   void zero();                         ///< Zero all values

   operator F32*() { return &x; }
   operator const F32*() const { return &x; }

   //-------------------------------------- Queries
  public:
   bool  isZero() const;        ///< Check for zero coordinates. (No epsilon.)
   F32 len()    const;          ///< Get length.
   F32 lenSquared() const;      ///< Get squared length (one sqrt less than len()).
   bool equal( const Point2F &compare ) const;  ///< Is compare within POINT_EPSILON of all of the component of this point
   F32 magnitudeSafe() const;

   //-------------------------------------- Mathematical mutators
  public:
   void neg();                              ///< Invert signs of co-ordinates.
   void normalize();                        ///< Normalize vector.
   void normalize(F32 val);                 ///< Normalize, scaling by val.
   void normalizeSafe();
   void convolve(const Point2F&);           ///< Convolve by parameter.
   void convolveInverse(const Point2F&);    ///< Inversely convolute by parameter. (ie, divide)
   void rotate( F32 radians );              ///< Rotate vector around origin.

   /// Return a perpendicular vector to this one.  The result is equivalent to rotating the
   /// vector 90 degrees clockwise around the origin.
   Point2F getPerpendicular() const { return Point2F( y, - x ); }

   //-------------------------------------- Overloaded operators
  public:
   // Comparison operators
   bool operator==(const Point2F&) const;
   bool operator!=(const Point2F&) const;