TAPsVector2.hpp

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/******************************************************************************
TAPsVector2.hpp
******************************************************************************/
/******************************************************************************
SUKITTI PUNAK   (09/09/2004)
UPDATE          (08/27/2010)
******************************************************************************/
#ifndef TAPs_VECTOR2_HPP
#define TAPs_VECTOR2_HPP

#include "TAPsVector.hpp"

template <typename T> class ColMatrix2x2;

BEGIN_NAMESPACE_TAPs
//=============================================================================
template <typename T>
class Vector2 : public Vector<T,2> {
//=============================================================================
public:
    //-------------------------------------------------------------------------
    // Constructors
    Vector2 ();
    Vector2 ( T const af[2] );
    Vector2 ( Vector2<T> const &v );
    Vector2 ( T x, T y );
    //-------------------------------------------------------------------------
    // Assignment Operator
    inline Vector2<T> & operator= ( Vector2<T> const &v );
    //-------------------------------------------------------------------------
    // Comparison Operators
    inline bool operator== ( Vector2<T> const &v ) const;
    inline bool operator!= ( Vector2<T> const &v ) const;
    inline bool operator<= ( Vector2<T> const &v ) const;
    inline bool operator<  ( Vector2<T> const &v ) const;
    inline bool operator>= ( Vector2<T> const &v ) const;
    inline bool operator>  ( Vector2<T> const &v ) const;
    //-------------------------------------------------------------------------
    // Arithmetic Operators
    inline Vector2<T> operator- () const;   // negation
    inline Vector2<T> operator+ ( Vector2<T> const &v ) const;
    inline Vector2<T> operator- ( Vector2<T> const &v ) const;
    inline Vector2<T> operator* ( T s ) const;
    inline Vector2<T> operator/ ( T s ) const;
    friend inline Vector2<T> operator* ( T s, Vector2<T> const &v ) { return v*s; }
    //-------------------------------------------------------------------------
    // Arithmetic Update Operators
    inline Vector2<T> & operator+= ( Vector2<T> const &v );
    inline Vector2<T> & operator-= ( Vector2<T> const &v );
    inline Vector2<T> & operator*= ( T s );
    inline Vector2<T> & operator/= ( T s );
    //-------------------------------------------------------------------------
    // Vector Operations
    inline T Length () const;
    inline T Magnitude () const;
    inline T SquaredLength () const;
    inline Vector2<T> GetUnit ( T tolerance = TAPs::Math<T>::EPSILON ) const;
    inline Vector2<T> & Normalized ( T tolerance = TAPs::Math<T>::EPSILON );
    inline T Dot ( Vector2<T> const &v ) const;         // Dot Product
    inline T operator* ( Vector2<T> const &v ) const;   // Dot Product Operator

    inline Vector2<T> ComponentWiseMult ( Vector2<T> const &v ) const;
    inline Vector2<T> ComponentWiseDivs ( Vector2<T> const &v ) const;
    inline void UpdateByComponentWiseMult ( Vector2<T> const &v );
    inline void UpdateByComponentWiseDivs ( Vector2<T> const &v );

    //-------------------------------------------------------------------------
    // Get/Set Fn(s)
    inline T GetX() const { return this->t[0]; }
    inline T GetY() const { return this->t[1]; }
    inline void GetXY( T &x, T &y ) const { x = this->t[0]; y = this->t[1]; }
    inline void SetX( T x ) { this->t[0] = x; }
    inline void SetY( T y ) { this->t[1] = y; }
    inline void SetXY( T x, T y ) { this->t[0] = x; this->t[1] = y; }
    //-------------------------------------------------------------------------
    // Vector * ColMatrix
    Vector2<T> operator* ( ColMatrix2x2<T> const &M ) const;
    //-------------------------------------------------------------------------
}; // END CLASS Vector2
//=============================================================================
//-----------------------------------------------------------------------------
// Define Vector2s
typedef Vector2<int>            Vector2i;
typedef Vector2<float>          Vector2f;
typedef Vector2<double>         Vector2d;
typedef Vector2<long double>    Vector2ld;
//-----------------------------------------------------------------------------
//=============================================================================
// class Point2 is a vector2.
template <typename T>
class Point2 : public Vector2<T> {
public:
    //-------------------------------------------------------------------------
    // Output Operator <<
    friend std::ostream & operator<< ( std::ostream &output, Point2<T> const &p )
    {
        output  << "Point2<" << typeid(T).name() << ">( "
                << p.t[0] << ", " << p.t[1]
                << " )'";
        return output;
    }
    //-------------------------------------------------------------------------
    // Constructors
    Point2 () : Vector2<T>() {}
    Point2 ( T const at[2] ) : Vector2<T>( at ) {}
    Point2 ( Point2<T> const &p ) : Vector2<T>( p ) {}
    Point2 ( T x, T y ) : Vector2<T>( x, y ) {}
    //-------------------------------------------------------------------------
}; // END CLASS Point2
//=============================================================================
//-----------------------------------------------------------------------------
typedef Point2<int>    Point2i;
typedef Point2<float>  Point2f;
typedef Point2<double> Point2d;
//-----------------------------------------------------------------------------
//=============================================================================
END_NAMESPACE_TAPs
//-----------------------------------------------------------------------------
// Include definition if TAPs_USE_EXPORT is not defined
//#if !defined( TAPs_USE_EXPORT )
    #include "TAPsVector2.cpp"
//#endif
//-----------------------------------------------------------------------------
#endif
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