simuLCS
Class Vector2D

java.lang.Object
  simuLCS.Vector2D

public class Vector2D

extends java.lang.Object

Handles all the functions for 2D Vectors.

Author:

Benoit

Field Summary

private double	x
private double	y

Constructor Summary

Vector2D()
Creates a vector (0,0)

Vector2D(double xp, double yp)
Creates a vector (xp,yp)

Vector2D(java.awt.geom.Point2D p)
Creates a vector between (0,0) and the given point

Vector2D(java.awt.geom.Point2D p1, java.awt.geom.Point2D p2)
Creates the vector between two given points

Vector2D(Vector2D v)
Creates a clone of a given vector

Method Summary

void	add(Vector2D v) Add the given vector to this vector (it modifies the vector)
static Vector2D	getCorrectedVector(Vector2D movVector, Arena a, Entity me, java.awt.Graphics2D g) Correct the vector so that it doesn't bring the Entity outside the Arena.
double	getNorm() Get the norm of the Vector
Vector2D	getNormalLeft() Get a perpendicular vector, on the left
double	getX()
double	getY()
void	multiplyByConstant(double d) Change the scale of the vector by multiplying its coordinates by a contant
void	opposite() Change the vector into its opposite
void	paint(java.awt.geom.Point2D p, java.awt.Graphics2D g, java.awt.Color c) Paints the vector (useful for debugging)
void	setUnitVector(java.awt.geom.Point2D p1, java.awt.geom.Point2D p2) Set the Vector to the unit vector between the two points the previous values of the Vector are lost.
void	setX(double d)
void	setY(double d)
java.lang.String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

x

private double x

y

private double y

Constructor Detail

Vector2D

public Vector2D()

Creates a vector (0,0)

Vector2D

public Vector2D(double xp,
                double yp)

Creates a vector (xp,yp)

Parameters:

xp -

yp -

Vector2D

public Vector2D(java.awt.geom.Point2D p)

Creates a vector between (0,0) and the given point

Parameters:

p -

Vector2D

public Vector2D(java.awt.geom.Point2D p1,
                java.awt.geom.Point2D p2)

Creates the vector between two given points

Parameters:

p1 -

p2 -

Vector2D

public Vector2D(Vector2D v)

Creates a clone of a given vector

Parameters:

v -

Method Detail

add

public void add(Vector2D v)

Add the given vector to this vector (it modifies the vector)

Parameters:

v -

opposite

public void opposite()

Change the vector into its opposite

multiplyByConstant

public void multiplyByConstant(double d)

Change the scale of the vector by multiplying its coordinates by a contant

Parameters:

d -

setUnitVector

public void setUnitVector(java.awt.geom.Point2D p1,
                          java.awt.geom.Point2D p2)

Set the Vector to the unit vector between the two points the previous values of the Vector are lost.

Parameters:

p1 -

p2 -

getNorm

public double getNorm()

Get the norm of the Vector

Returns:

getX

public double getX()

Returns:

getY

public double getY()

Returns:

setX

public void setX(double d)

Parameters:

d -

setY

public void setY(double d)

Parameters:

d -

toString

public java.lang.String toString()

paint

public void paint(java.awt.geom.Point2D p,
                  java.awt.Graphics2D g,
                  java.awt.Color c)

Paints the vector (useful for debugging)

Parameters:

p -

g -

c -

getNormalLeft

public Vector2D getNormalLeft()

Get a perpendicular vector, on the left

Returns:

getCorrectedVector

public static Vector2D getCorrectedVector(Vector2D movVector,
                                          Arena a,
                                          Entity me,
                                          java.awt.Graphics2D g)

Correct the vector so that it doesn't bring the Entity outside the Arena.

Parameters:

a -

me -

Returns: