Defines a vector with 2 components (x and y). This is additional information... More...

#include <Vector2.h>

Public Member Functions
	Vector2 (const float x=0, const float y=0)
	Instantiates a new Vector2 object. More...

float	LengthSquared () const
	Calculates the length of the vector squared. More...

float	Length () const
	Calculates the length of the vector. More...

void	Set (const float x, const float y)
	Sets the components of the vector. More...

void	Set (const Vector2 vector)
	Sets the components of the vector. More...

void	Normalize ()
	Resize a vector to a length of one unit. If the starting vector is the zero vector, the call will be ignored.

bool	IsZero () const
	Determines if the vector is the zero vector. More...

float	DotProduct (const Vector2 &vector) const
	Calculates the dot product of two vectors. More...

float	CrossProduct (const Vector2 &vector) const
	Calculates the cross product between two vectors. More...

Vector2	Left ()
	Calculates the left-hand orthogonal vector. More...

Vector2	Right ()
	Calculates the right-hand orthogonal vector. More...

const Point	ToPoint () const
	Converts the vector into a point. More...

std::string	ToString () const
	Gets a string representation of the vector. More...

void	Display () const
	Prints the vector to the console.

Vector2 &	operator= (const Vector2 &vector)
	Assigns the reference of a vector. More...

Vector2 &	operator+= (const Vector2 &vector)
	Adds a vector. More...

Vector2 &	operator-= (const Vector2 &vector)
	Subtracts a vector. More...

Vector2 &	operator*= (const float scalar)
	Multiplies by a scalar. More...

Vector2 &	operator/= (const float scalar)
	Divides by a scalar. More...

const Vector2	operator- () const
	Negates the vector. More...

const Vector2	operator+ (const Vector2 &vector) const
	Adds two vectors. More...

const Vector2	operator- (const Vector2 &vector) const
	Subtracts a vector from another. More...

const Vector2	operator* (const float scalar) const
	Multiplies a vector by a scalar. More...

const Vector2	operator/ (const float scalar) const
	Divides a vector by a scalar. More...

bool	operator== (const Vector2 &vector) const
	Determines if two vectors are equal. More...

bool	operator!= (const Vector2 &vector) const
	Determines if two vectors are not equal. More...

Static Public Member Functions
static float	Distance (const Vector2 &vector1, const Vector2 &vector2)
	Calculates the distance between two vectors. More...

static float	DistanceSquared (const Vector2 &vector1, const Vector2 &vector2)
	Calculates the distance squared between two vectors. More...

static Vector2	Lerp (const Vector2 &start, const Vector2 &end, const float value)
	Linearly interpolate between two vectors. More...

static Vector2	GetRandom (bool normalize=false)
	Creates a random vector. More...

Public Attributes
float	X
	The x-coordinate of the vector.

float	Y
	The y-coordinate of the vector.

Static Public Attributes
static const Vector2	Zero = Vector2(0, 0)
	A vector with both of its components set to zero.

static const Vector2	One = Vector2(1, 1)
	A vector with both of its components set to one.

static const Vector2	UnitX = Vector2(1, 0)
	A unit vector on the x-axis.

static const Vector2	UnitY = Vector2(0, 1)
	A unit vector on the y-axis.

Detailed Description

Defines a vector with 2 components (x and y). This is additional information...

Constructor & Destructor Documentation

◆ Vector2()

KatanaEngine::Vector2::Vector2	(	const float	x = `0`,
		const float	y = `0`
	)

Instantiates a new Vector2 object.

Parameters

x	The X component
y	The Y component

Member Function Documentation

◆ CrossProduct()

float KatanaEngine::Vector2::CrossProduct ( const Vector2 & vector ) const

Calculates the cross product between two vectors.

Parameters

vector The other vector.

Returns: The calculated cross product.

◆ Distance()

float KatanaEngine::Vector2::Distance	(	const Vector2 &	vector1,
		const Vector2 &	vector2
	)

static

Calculates the distance between two vectors.

Parameters

vector1	The first vector.
vector2	The second vector.

Returns: The calculated distance.

◆ DistanceSquared()

float KatanaEngine::Vector2::DistanceSquared	(	const Vector2 &	vector1,
		const Vector2 &	vector2
	)

static

Calculates the distance squared between two vectors.

Parameters

vector1	The first vector.
vector2	The second vector.

Returns: The calculated distance squared.

◆ DotProduct()

float KatanaEngine::Vector2::DotProduct ( const Vector2 & vector ) const

Calculates the dot product of two vectors.

Parameters

vector The other vector.

Returns: The calculated dot product.

Remarks: If the two vectors are unit vectors, the dot product returns a floating point value between -1 and 1 that can be used to determine some properties of the angle between two vectors. For example, it can show whether the vectors are orthogonal, parallel, or have an acute or obtuse angle between them.

◆ GetRandom()

Vector2 KatanaEngine::Vector2::GetRandom ( bool normalize = false )

static

Creates a random vector.

Parameters

normalize Specify true to generate a unit vector. False will generate a vector with a random length.

Returns: The random vector.

◆ IsZero()

bool KatanaEngine::Vector2::IsZero ( ) const

inline

Determines if the vector is the zero vector.

Returns: Returns true if both components are zero, false otherwise.

◆ Left()

Vector2 KatanaEngine::Vector2::Left ( )

inline

Calculates the left-hand orthogonal vector.

Returns: Returns the left vector.

◆ Length()

float KatanaEngine::Vector2::Length ( ) const

Calculates the length of the vector.

Returns: The length of the vector.

◆ LengthSquared()

float KatanaEngine::Vector2::LengthSquared ( ) const

Calculates the length of the vector squared.

Returns: float The length of the vector squared.

◆ Lerp()

Vector2 KatanaEngine::Vector2::Lerp	(	const Vector2 &	start,
		const Vector2 &	end,
		const float	value
	)

static

Linearly interpolate between two vectors.

Parameters

start	The result when the value is zero.
end	The result when the value is one.
value	A value between 0 and 1 that will indicate the resulting weight between start and end.

Returns: Returns the interpolated vector between start and end.

◆ operator!=()

bool KatanaEngine::Vector2::operator!= ( const Vector2 & vector ) const

Determines if two vectors are not equal.

Parameters

vector The vector to compare.

Returns: Returns true if the vectors are not equal, false otherwise.

◆ operator*()

const Vector2 KatanaEngine::Vector2::operator* ( const float scalar ) const

Multiplies a vector by a scalar.

Parameters

scalar The scalar to multiply by.

Returns: Returns the resulting vector.

◆ operator*=()

Vector2 & KatanaEngine::Vector2::operator*= ( const float scalar )

Multiplies by a scalar.

Parameters

scalar The scalar to multiply by.

Returns: Returns the resulting vector.

◆ operator+()

const Vector2 KatanaEngine::Vector2::operator+ ( const Vector2 & vector ) const

Adds two vectors.

Parameters

vector The vector to add.

Returns: Returns the resulting vector.

◆ operator+=()

Vector2 & KatanaEngine::Vector2::operator+= ( const Vector2 & vector )

Adds a vector.

Parameters

vector The vector to add.

Returns: Returns the resulting vector.

◆ operator-() [1/2]

const Vector2 KatanaEngine::Vector2::operator- ( ) const

inline

Negates the vector.

Returns: Returns the resulting vector.

◆ operator-() [2/2]

const Vector2 KatanaEngine::Vector2::operator- ( const Vector2 & vector ) const

Subtracts a vector from another.

Parameters

vector The vector to subtract.

Returns: Returns the resulting vector.

◆ operator-=()

Vector2 & KatanaEngine::Vector2::operator-= ( const Vector2 & vector )

Subtracts a vector.

Parameters

vector The vector to subtract.

Returns: Returns the resulting vector.

◆ operator/()

const Vector2 KatanaEngine::Vector2::operator/ ( const float scalar ) const

Divides a vector by a scalar.

Parameters

scalar The scalar to divide by.

Returns: Returns the resulting vector.

◆ operator/=()

Vector2 & KatanaEngine::Vector2::operator/= ( const float scalar )

Divides by a scalar.

Parameters

scalar The scalar to divide by.

Returns: Returns the resulting vector.

◆ operator=()

Vector2 & KatanaEngine::Vector2::operator= ( const Vector2 & vector )

Assigns the reference of a vector.

Parameters

vector The reference vector.

Returns: Returns the resulting vector.

◆ operator==()

bool KatanaEngine::Vector2::operator== ( const Vector2 & vector ) const

Determines if two vectors are equal.

Parameters

vector The vector to compare.

Returns: Returns true if the vectors are equal, false otherwise.

◆ Right()

Vector2 KatanaEngine::Vector2::Right ( )

inline

Calculates the right-hand orthogonal vector.

Returns: Returns the right vector.

◆ Set() [1/2]

void KatanaEngine::Vector2::Set	(	const float	x,
		const float	y
	)

inline

Sets the components of the vector.

Parameters

x	The X component.
y	The Y component.

◆ Set() [2/2]

void KatanaEngine::Vector2::Set ( const Vector2 vector )

inline

Sets the components of the vector.

Parameters

vector The vector whose components to copy.

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

◆ ToPoint()

const Point KatanaEngine::Vector2::ToPoint ( ) const

Converts the vector into a point.

Returns: Returns the closest point to the vector displacement.

◆ ToString()

std::string KatanaEngine::Vector2::ToString ( ) const

Gets a string representation of the vector.

Returns: Returns a string displaying the components of the vector.

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

KatanaEngine/Vector2.h
KatanaEngine/Vector2.cpp

Public Member Functions

Static Public Member Functions

Public Attributes

Static Public Attributes

Detailed Description

Constructor & Destructor Documentation

◆ Vector2()

Member Function Documentation

◆ CrossProduct()

◆ Distance()

◆ DistanceSquared()

◆ DotProduct()

◆ GetRandom()

◆ IsZero()

◆ Left()

◆ Length()

◆ LengthSquared()

◆ Lerp()

◆ operator!=()

◆ operator*()

◆ operator*=()

◆ operator+()

◆ operator+=()

◆ operator-() [1/2]

◆ operator-() [2/2]

◆ operator-=()

◆ operator/()

◆ operator/=()

◆ operator=()

◆ operator==()

◆ Right()

◆ Set() [1/2]

◆ Set() [2/2]

◆ ToPoint()

◆ ToString()