Circle.java

gehe zur Dokumentation dieser Datei

package de.lathanda.eos.game.geom;
 
import de.lathanda.eos.base.Picture;
import de.lathanda.eos.base.math.Point;
 
public class Circle extends Shape {
 
    protected double radius;
 
    public Circle(double radius) {
        this(radius, 0, 0);
    }
 
    public Circle(double radius, Point p) {
        this(radius, p.getX(), p.getY());
    }
 
    public Circle(double radius, double x, double y) {
        super();
        this.radius = radius;
        left = x - radius;
        right = x + radius;
        bottom = y - radius;
        top = y + radius;
        p = new Point(x, y);
    }
 
    @Override
    protected Types getOutlineType() {
        return Types.CIRCLE;
    }
 
    @Override
    public boolean contains(Point p) {
        return contains(p.getX(), p.getY());
    }
 
    @Override
    public boolean contains(double x, double y) {
        double dx = this.p.getX() - x;
        double dy = this.p.getY() - y;
        return dx * dx + dy * dy < radius * radius;
    }
 
    @Override
    public double getDistance(double x, double y) {
        return p.getDistance(x, y) - radius;
    }
 
    @Override
    protected void positionChanged() {
        left = p.getX() - radius;
        right = p.getX() + radius;
        bottom = p.getY() - radius;
        top = p.getY() + radius;
    }
 
    @Override
    protected void angleChanged() {
    }
 
    @Override
    public void draw(Picture picture) {
        picture.drawEllipse(p.getX(), p.getY(), radius, radius);
        
    }
}