import java.awt.Point;

public class Dreieck {
    private Point a;
    private Point b;
    private Point c;

    Dreieck(Point x, Point y, Point z) {
	a = x; b = y; c = z;
    }

    public Point Ecke1() {
	return a;
    }
    public Point Ecke2() {
	return b;
    }
    public Point Ecke3() {
	return c;
    }

    public void translate(int x, int y) {
	a.translate(x,y);
	b.translate(x,y);
	c.translate(x,y);
    }

    public void zeichnen(GraphicsWindow w){
	w.drawLine(a,b);
	w.drawLine(b,c);
	w.drawLine(c,a);
    }

    public void loeschen(GraphicsWindow w){
	w.switchToBackgroundColour();
	w.drawLine(a,b);
	w.drawLine(b,c);
	w.drawLine(c,a);
	w.switchToForegroundColour();
    }
}