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package shoot;
import java.io.Serializable;
/**
* <b>Vector2f est un vecteur bidimensionnel prenant en argument des rééls </b>
*
* Cette classe n'est pas <i>immuable</i>
*
* @author Xyliaris
*/
public class Vector2f implements Serializable
{
public Vector2f(){}
public Vector2f( float x, float y )
{
this.x = x;
this.y = y;
}
public Vector2f(Vector2f vector)
{
this.x = new Float(vector.x()); // useless Float
this.y = new Float(vector.y()); // useless Float
}
public float x() {return this.x;}
public float y() {return this.y;}
public void setX(float x) {this.x = x;}
public void setY(float y) {this.y = y;}
public void addX(float x) {this.x += x;}
public void addY(float y) {this.y += y;}
public void subX(float x) {this.x -= x;}
public void subY(float y) {this.y -= y;}
public void mulX(float x) {this.x *= x;}
public void mulY(float y) {this.y *= y;}
public void divX(float x) {this.x /= x;}
public void divY(float y) {this.y /= y;}
public void setValues( float x, float y ) {this.x = x; this.y = y;}
public void set( Vector2f value ) {this.x = value.x(); this.y = value.y();}
public float bigger() {return this.x > this.y ? this.x : this.y;}
public float smaller() {return this.x > this.y ? this.y : this.x;}
public boolean biggerthan( Vector2f vector ) {return ( this.x > vector.x() && this.y > vector.y() );}
public boolean smallerthan( Vector2f vector ) {return ( this.x < vector.x() && this.y < vector.y() );}
public boolean awayfrom( Vector2f vector, float distance )
{
return Math.sqrt(Math.pow(this.x - vector.x(), 2) + Math.pow(this.y - vector.y(), 2)) > distance;
}
public float normalize( Vector2f vector ) {return (float) Math.sqrt(Math.pow(vector.x(), 2) + Math.pow(vector.y(), 2));}
/**
* Retourne un vecteur d'angle défini par la position actuel vers une position donné
*
* @see Vector2f#norme()
*/
public Vector2f shoot( Vector2f endpos )
{
Vector2f shoot = new Vector2f(endpos.x() - this.x, endpos.y - this.y );
float norme = this.normalize(shoot);
shoot.divide(norme);
return shoot;
}
public Vector2f randValueBetween( Vector2f value )
{
if( value.x() <= this.x && value.y() <= this.y )
return new Vector2f( value.x() + (float)Math.random() * (this.x - value.x()), value.y() + (float)Math.random() * (this.y - value.y()) );
if( value.x() <= this.x && value.y() >= this.y )
return new Vector2f( value.x() + (float)Math.random() * (this.x - value.x()), this.y + (float)Math.random() * (value.x() - this.y) );
if( value.x() >= this.x && value.y() <= this.y )
return new Vector2f( this.x + (float)Math.random() * (value.x() - this.x), value.y() + (float)Math.random() * (this.y - value.y()) );
return new Vector2f( this.x + (float)Math.random() * (value.x() - this.x), this.y + (float)Math.random() * (value.y() - this.y) );
}
public Vector2f scaledCopy( float value ) {return new Vector2f(this.x * value, this.y * value);}
public void divide( Vector2f value ) {this.x /= value.x(); this.y /= value.y();}
public void divide( float value ) {this.x /= value; this.y /= value;}
public void substract( Vector2f value ) {this.x -= value.x(); this.y -= value.y();}
public void substract( float value ) {this.x -= value; this.y -= value;}
public void add( Vector2f value ) {this.x += value.x(); this.y += value.y();}
public void add( float value ) {this.x += value; this.y += value;}
public void multiply( Vector2f value ) {this.x *= value.x(); this.y *= value.y();}
public void multiply( float value ) {this.x *= value; this.y *= value;}
public Vector2f pow( Vector2f v, float p ) {return new Vector2f((float)(Math.pow(v.x(), p)), (float) Math.pow(v.y(), p) );}
public Vector2f pow( Vector2f v, Vector2f p ) {return new Vector2f((float)(Math.pow(v.x(), p.x())), (float) Math.pow(v.y(), p.y()) );}
public String toString() {return new String( this.x + ":" + this.y );}
///////////////////
////// BUILD //////
///////////////////
/*
* * Pour plus de clarter et éviter les conflicts avec les methodes non statique,
* les methodes sont accessible via une énumération de celle-ci.
*
* @param method Méthodes disponibles : <\br> - add<\br> - substract<\br> - divide<\br> - multiply
* @param target Vecteur a affecter
*
*/
public static Vector2f vector_methods( Method method, Vector2f value, Vector2f target )
{
Vector2f vector = new Vector2f(target);
switch (method)
{
case ADD:
vector.add(value);
break;
case SUBSTRACT:
vector.substract(value);
break;
case DIVIDE:
vector.divide(value);
break;
case MULTIPLY:
vector.multiply(value);
break;
default:
break;
}
return vector;
}
private float x;
private float y;
private static final long serialVersionUID = 8318071254896859350L;
} |
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