CFixedVector2D Class Reference

#include <FixedVector2D.h>

Collaboration diagram for CFixedVector2D:

Public Member Functions
	CFixedVector2D ()
	CFixedVector2D (fixed X, fixed Y)
bool	operator== (const CFixedVector2D &v) const
	Vector equality. More...
bool	operator!= (const CFixedVector2D &v) const
	Vector inequality. More...
CFixedVector2D	operator+ (const CFixedVector2D &v) const
	Vector addition. More...
CFixedVector2D	operator- (const CFixedVector2D &v) const
	Vector subtraction. More...
CFixedVector2D	operator- () const
	Negation. More...
CFixedVector2D &	operator+= (const CFixedVector2D &v)
	Vector addition. More...
CFixedVector2D &	operator-= (const CFixedVector2D &v)
	Vector subtraction. More...
CFixedVector2D	operator* (int n) const
	Scalar multiplication by an integer. More...
CFixedVector2D	operator/ (int n) const
	Scalar division by an integer. Must not have n == 0. More...
CFixedVector2D	Multiply (fixed n) const
	Multiply by a CFixed. More...
fixed	Length () const
	Returns the length of the vector. More...
int	CompareLength (fixed cmp) const
	Returns -1, 0, +1 depending on whether length is less/equal/greater than the argument. More...
int	CompareLength (const CFixedVector2D &other) const
	Returns -1, 0, +1 depending on whether length is less/equal/greater than the argument's length. More...
bool	IsZero () const
void	Normalize ()
	Normalize the vector so that length is close to 1. More...
void	Normalize (fixed n)
	Normalize the vector so that length is close to n. More...
fixed	Dot (const CFixedVector2D &v) const
	Compute the dot product of this vector with another. More...
CFixedVector2D	Perpendicular () const
CFixedVector2D	Rotate (fixed angle) const
	Rotate the vector by the given angle (anticlockwise). More...

Public Attributes
fixed	X
fixed	Y

Constructor & Destructor Documentation

CFixedVector2D::CFixedVector2D ( )

inline

CFixedVector2D::CFixedVector2D ( fixed  X, fixed  Y  )

inline

Member Function Documentation

int CFixedVector2D::CompareLength ( fixed  cmp ) const

inline

Returns -1, 0, +1 depending on whether length is less/equal/greater than the argument.

Avoids sqrting and overflowing.

int CFixedVector2D::CompareLength ( const CFixedVector2D &  other ) const

inline

Returns -1, 0, +1 depending on whether length is less/equal/greater than the argument's length.

Avoids sqrting and overflowing.

fixed CFixedVector2D::Dot ( const CFixedVector2D &  v ) const

inline

Compute the dot product of this vector with another.

bool CFixedVector2D::IsZero ( ) const

inline

fixed CFixedVector2D::Length ( ) const

inline

Returns the length of the vector.

Will not overflow if the result can be represented as type 'fixed'.

CFixedVector2D CFixedVector2D::Multiply ( fixed  n ) const

inline

Multiply by a CFixed.

Likely to overflow if both numbers are large, so we use an ugly name instead of operator* to make it obvious.

void CFixedVector2D::Normalize ( )

inline

Normalize the vector so that length is close to 1.

If length is 0, does nothing.

void CFixedVector2D::Normalize ( fixed  n )

inline

Normalize the vector so that length is close to n.

If length is 0, does nothing.

bool CFixedVector2D::operator!= ( const CFixedVector2D &  v ) const

inline

Vector inequality.

CFixedVector2D CFixedVector2D::operator* ( int  n ) const

inline

Scalar multiplication by an integer.

CFixedVector2D CFixedVector2D::operator+ ( const CFixedVector2D &  v ) const

inline

Vector addition.

CFixedVector2D& CFixedVector2D::operator+= ( const CFixedVector2D &  v )

inline

Vector addition.

CFixedVector2D CFixedVector2D::operator- ( const CFixedVector2D &  v ) const

inline

Vector subtraction.

CFixedVector2D CFixedVector2D::operator- ( ) const

inline

Negation.

CFixedVector2D& CFixedVector2D::operator-= ( const CFixedVector2D &  v )

inline

Vector subtraction.

CFixedVector2D CFixedVector2D::operator/ ( int  n ) const

inline

Scalar division by an integer. Must not have n == 0.

bool CFixedVector2D::operator== ( const CFixedVector2D &  v ) const

inline

Vector equality.

CFixedVector2D CFixedVector2D::Perpendicular ( ) const

inline

CFixedVector2D CFixedVector2D::Rotate ( fixed  angle ) const

inline

Rotate the vector by the given angle (anticlockwise).

Member Data Documentation

fixed CFixedVector2D::X

fixed CFixedVector2D::Y

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The documentation for this class was generated from the following file:

• /var/svn/checkout/source/maths/FixedVector2D.h