Vector Class Reference

#include <Vector.h>

List of all members.

Public Member Functions
	Vector ()
	Vector (const float x, const float y)
	Vector (const int x, const int y)
	Vector (const Vector &v)
	Vector (const Position &p)
	Vector (const TilePosition &p)
	operator Position ()
	operator TilePosition ()
Vector &	operator= (const float scalar)
bool	operator== (const Vector &v) const
bool	operator!= (const Vector &v) const
Vector	operator+ (const Vector &v) const
Vector	operator- (const Vector &v) const
Vector	operator* (const float &scalar) const
Vector	operator* (const Vector &v) const
Vector	operator/ (const float &scalar) const
Vector	operator/ (const Vector &v) const
Vector	operator+ () const
Vector	operator- () const
Vector &	operator+= (const Vector &v)
Vector &	operator+= (const float scalar)
Vector &	operator-= (const Vector &v)
Vector &	operator-= (const float scalar)
Vector &	operator*= (const float scalar)
Vector &	operator*= (const Vector &v)
Vector &	operator/= (const float scalar)
Vector &	operator/= (const Vector &v)
float	length () const
float	squaredLength () const
float	distance (const Vector &v) const
float	squaredDistance (const Vector &v) const
float	dotProduct (const Vector &v) const
float	normalise ()
Vector	midPoint (const Vector &v) const
bool	operator< (const Vector &v) const
bool	operator> (const Vector &v) const
void	makeFloor (const Vector &v)
void	makeCeil (const Vector &v)
Vector	perpendicular () const
float	crossProduct (const Vector &v) const
Vector	randomDeviant (float angle) const
bool	isZeroLength () const
Vector	normalisedCopy () const
Vector	reflect (const Vector &normal) const
Public Attributes
float	x
float	y
Friends
Vector	operator* (const float scalar, const Vector &v)
Vector	operator/ (const float scalar, const Vector &v)
Vector	operator+ (const Vector &lhs, const float rhs)
Vector	operator+ (const float lhs, const Vector &rhs)
Vector	operator- (const Vector &lhs, const float rhs)
Vector	operator- (const float lhs, const Vector &rhs)

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Detailed Description

Definition at line 7 of file Vector.h.

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Constructor & Destructor Documentation

Vector::Vector

(

)

[inline]

Definition at line 12 of file Vector.h.

Referenced by midPoint(), operator*(), operator+(), operator-(), operator/(), perpendicular(), randomDeviant(), and reflect().

                : x(0), y(0)
        { }

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Vector::Vector	(	const float	x,
		const float	y
	)		[inline]

Definition at line 16 of file Vector.h.

                : x(x), y(y)
        { }

Vector::Vector	(	const int	x,
		const int	y
	)		[inline]

Definition at line 20 of file Vector.h.

                : x(float(x)), y(float(y))
        { }

Vector::Vector

(

const Vector &

v

)

[inline]

Definition at line 24 of file Vector.h.

                : x(v.x), y(v.y)
        { }

Vector::Vector

(

const Position &

p

)

[inline]

Definition at line 28 of file Vector.h.

                : x( float(p.x()) ), y( float(p.y()) )
        { }

Vector::Vector

(

const TilePosition &

p

)

[inline]

Definition at line 32 of file Vector.h.

                : x( float(p.x() * 32) ), y( float(p.y() * 32) )
        { }

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Member Function Documentation

float Vector::crossProduct

(

const Vector &

v

)

const [inline]

Definition at line 274 of file Vector.h.

References x, and y.

        {
                return x * v.y - y * v.x;
        }

float Vector::distance

(

const Vector &

v

)

const [inline]

Definition at line 208 of file Vector.h.

        {
                return (*this - v).length();
        }

float Vector::dotProduct

(

const Vector &

v

)

const [inline]

Definition at line 218 of file Vector.h.

References x, and y.

Referenced by TerrainAnaysisClass::findChokePoint(), and reflect().

        {
                return x * v.x + y * v.y;
        }

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bool Vector::isZeroLength

(

)

const [inline]

Definition at line 287 of file Vector.h.

References x, and y.

        {
                return (x == 0 && y == 0);
        }

float Vector::length

(

)

const [inline]

Definition at line 198 of file Vector.h.

References x, and y.

        {
                return sqrt(x * x + y * y);
        }

void Vector::makeCeil

(

const Vector &

v

)

[inline]

Definition at line 263 of file Vector.h.

References x, and y.

        {
                if(v.x > x) x = v.x;
                if(v.y > y) y = v.y;
        }

void Vector::makeFloor

(

const Vector &

v

)

[inline]

Definition at line 257 of file Vector.h.

References x, and y.

        {
                if(v.x < x) x = v.x;
                if(v.y < y) y = v.y;
        }

Vector Vector::midPoint

(

const Vector &

v

)

const [inline]

Definition at line 236 of file Vector.h.

References Vector(), x, and y.

        {
                return Vector((x + v.x) * 0.5f, (y + v.y ) * 0.5f);
        }

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float Vector::normalise

(

)

[inline]

Definition at line 223 of file Vector.h.

References x, and y.

Referenced by TerrainAnaysisClass::findChokePoint(), normalisedCopy(), stayAtRange(), PsiStormAction::update(), and WorkerScoutTask::update().

        {
                float iLength = sqrt( x * x + y * y );

                if(iLength > 0)
                {
                        x /= iLength;
                        y /= iLength;
                }

                return iLength;
        }

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Vector Vector::normalisedCopy

(

)

const [inline]

Definition at line 292 of file Vector.h.

References normalise().

        {
                Vector ret = *this;
                ret.normalise();
                return ret;
        }

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Vector::operator Position

(

)

[inline]

Definition at line 36 of file Vector.h.

References x, and y.

        {
                return Position( int(x), int(y) );
        }

Vector::operator TilePosition

(

)

[inline]

Definition at line 41 of file Vector.h.

References x, and y.

        {
                return TilePosition( int(x / 32), int(y / 32) );
        }

bool Vector::operator!=

(

const Vector &

v

)

const [inline]

Definition at line 59 of file Vector.h.

References x, and y.

        {
                return !(x == v.x && y == v.y);
        }

Vector Vector::operator*

(

const float &

scalar

)

const [inline]

Definition at line 74 of file Vector.h.

References Vector(), x, and y.

        {
                return Vector(x * scalar, y * scalar);
        }

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Vector Vector::operator*

(

const Vector &

v

)

const [inline]

Definition at line 79 of file Vector.h.

References Vector(), x, and y.

        {
                return Vector(x * v.x, y * v.y);
        }

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Vector& Vector::operator*=

(

const float

scalar

)

[inline]

Definition at line 166 of file Vector.h.

References x, and y.

        {
                x *= scalar;
                y *= scalar;

                return *this;
        }

Vector& Vector::operator*=

(

const Vector &

v

)

[inline]

Definition at line 174 of file Vector.h.

References x, and y.

        {
                x *= v.x;
                y *= v.y;

                return *this;
        }

Vector Vector::operator+

(

const Vector &

v

)

const [inline]

Definition at line 64 of file Vector.h.

References Vector(), x, and y.

        {
                return Vector(x + v.x, y + v.y);
        }

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Vector Vector::operator+

(

)

const [inline]

Definition at line 94 of file Vector.h.

        {
                return *this;
        }

Vector& Vector::operator+=

(

const Vector &

v

)

[inline]

Definition at line 134 of file Vector.h.

References x, and y.

        {
                x += v.x;
                y += v.y;

                return *this;
        }

Vector& Vector::operator+=

(

const float

scalar

)

[inline]

Definition at line 142 of file Vector.h.

References x, and y.

        {
                x += scalar;
                y += scalar;

                return *this;
        }

Vector Vector::operator-

(

const Vector &

v

)

const [inline]

Definition at line 69 of file Vector.h.

References Vector(), x, and y.

        {
                return Vector(x - v.x, y - v.y);
        }

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Vector Vector::operator-

(

)

const [inline]

Definition at line 99 of file Vector.h.

References Vector(), x, and y.

        {
                return Vector(-x, -y);
        }

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Vector& Vector::operator-=

(

const Vector &

v

)

[inline]

Definition at line 150 of file Vector.h.

References x, and y.

        {
                x -= v.x;
                y -= v.y;

                return *this;
        }

Vector& Vector::operator-=

(

const float

scalar

)

[inline]

Definition at line 158 of file Vector.h.

References x, and y.

        {
                x -= scalar;
                y -= scalar;

                return *this;
        }

Vector Vector::operator/

(

const float &

scalar

)

const [inline]

Definition at line 84 of file Vector.h.

References Vector(), x, and y.

        {
                return Vector(x / scalar, y / scalar);
        }

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Vector Vector::operator/

(

const Vector &

v

)

const [inline]

Definition at line 89 of file Vector.h.

References Vector(), x, and y.

        {
                return Vector(x / v.x, y / v.y);
        }

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Vector& Vector::operator/=

(

const float

scalar

)

[inline]

Definition at line 182 of file Vector.h.

References x, and y.

        {
                x /= scalar;
                y /= scalar;

                return *this;
        }

Vector& Vector::operator/=

(

const Vector &

v

)

[inline]

Definition at line 190 of file Vector.h.

References x, and y.

        {
                x /= v.x;
                y /= v.y;

                return *this;
        }

bool Vector::operator<

(

const Vector &

v

)

const [inline]

Definition at line 241 of file Vector.h.

References x, and y.

        {
                if(x == v.x)
                        return y < v.y;

                return x < v.x;
        }

Vector& Vector::operator=

(

const float

scalar

)

[inline]

Definition at line 46 of file Vector.h.

References x, and y.

        {
                x = scalar;
                y = scalar;

                return *this;
        }

bool Vector::operator==

(

const Vector &

v

)

const [inline]

Definition at line 54 of file Vector.h.

References x, and y.

        {
                return (x == v.x && y == v.y);
        }

bool Vector::operator>

(

const Vector &

v

)

const [inline]

Definition at line 249 of file Vector.h.

References x, and y.

        {
                if(x == v.x)
                        return y > v.y;

                return x > v.x;
        }

Vector Vector::perpendicular

(

)

const [inline]

Definition at line 269 of file Vector.h.

References Vector(), x, and y.

        {
                return Vector(-y, x);
        }

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Vector Vector::randomDeviant

(

float

angle

)

const [inline]

Definition at line 279 of file Vector.h.

References Vector(), x, and y.

        {
                angle *= (float(rand()) / float(RAND_MAX)) * 3.1415f * 2.0f;
                float cosa = cos(angle);
                float sina = sin(angle);
                return Vector(cosa * x - sina * y, sina * x + cosa * y);
        }

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Vector Vector::reflect

(

const Vector &

normal

)

const [inline]

Definition at line 299 of file Vector.h.

References dotProduct(), and Vector().

        {
                return Vector( *this - ( 2.0f * dotProduct(normal) * normal ) );
        }

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float Vector::squaredDistance

(

const Vector &

v

)

const [inline]

Definition at line 213 of file Vector.h.

        {
                return (*this - v).squaredLength();
        }

float Vector::squaredLength

(

)

const [inline]

Definition at line 203 of file Vector.h.

References x, and y.

        {
                return x * x + y * y;
        }

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Friends And Related Function Documentation

Vector operator*	(	const float	scalar,
		const Vector &	v
	)		[friend]

Definition at line 104 of file Vector.h.

        {
                return Vector(scalar * v.x, scalar * v.y);
        }

Vector operator+	(	const Vector &	lhs,
		const float	rhs
	)		[friend]

Definition at line 114 of file Vector.h.

        {
                return Vector(lhs.x + rhs, lhs.y + rhs);
        }

Vector operator+	(	const float	lhs,
		const Vector &	rhs
	)		[friend]

Definition at line 119 of file Vector.h.

        {
                return Vector(lhs + rhs.x, lhs + rhs.y);
        }

Vector operator-	(	const Vector &	lhs,
		const float	rhs
	)		[friend]

Definition at line 124 of file Vector.h.

        {
                return Vector(lhs.x - rhs, lhs.y - rhs);
        }

Vector operator-	(	const float	lhs,
		const Vector &	rhs
	)		[friend]

Definition at line 129 of file Vector.h.

        {
                return Vector(lhs - rhs.x, lhs - rhs.y);
        }

Vector operator/	(	const float	scalar,
		const Vector &	v
	)		[friend]

Definition at line 109 of file Vector.h.

        {
                return Vector(scalar / v.x, scalar / v.y);
        }

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Member Data Documentation

float Vector::x

Definition at line 10 of file Vector.h.

Referenced by crossProduct(), dotProduct(), isZeroLength(), length(), makeCeil(), makeFloor(), midPoint(), normalise(), operator Position(), operator TilePosition(), operator!=(), operator*(), operator*=(), operator+(), operator+=(), operator-(), operator-=(), operator/(), operator/=(), operator<(), operator=(), operator==(), operator>(), perpendicular(), randomDeviant(), and squaredLength().

float Vector::y

Definition at line 10 of file Vector.h.

Referenced by crossProduct(), dotProduct(), isZeroLength(), length(), makeCeil(), makeFloor(), midPoint(), normalise(), operator Position(), operator TilePosition(), operator!=(), operator*(), operator*=(), operator+(), operator+=(), operator-(), operator-=(), operator/(), operator/=(), operator<(), operator=(), operator==(), operator>(), perpendicular(), randomDeviant(), and squaredLength().

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

• Skynet/Skynet/Vector.h