public Brett(LaenderGraph laenderGraph) {
			
			
			 try {                
		          bild = ImageIO.read(new File("res/karte.jpg"));
		       } catch (IOException ex) {
		    	   System.out.println("fehler beim laden des Bildes");
		    	   ex.printStackTrace();
		       }
			 

			this.laenderGraph = laenderGraph;

			// set Variables
			boardOffset = 200;
			citySquareSize = 40;
			neutralColor = new Color(190, 190, 190);
			rot = new Color(210, 20, 20);
			blau = new Color(20, 20, 210);

			// init jframe
			jframe = new JFrame("test");
			jframe.setSize(bild.getWidth(),
				bild.getHeight());
			jframe.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

			buttonMap = new HashMap<Integer, JButton>();

			setLayout(null);

			setSize(jframe.getWidth(), jframe.getHeight());

			jframe.add(this);
			jframe.setVisible(false);
			repaint();

		}