reset after closing window

src/rushhour/Window.java

@@ -10,6 +10,8 @@
 import java.awt.event.MouseEvent;
 import java.awt.event.MouseListener;
 import java.awt.event.MouseMotionListener;
+import java.awt.event.WindowEvent;
+import java.awt.event.WindowListener;
 import java.awt.image.ImageObserver;
 import java.io.File;
 import java.io.IOException;
@@ -44,6 +46,51 @@ public Window(String title, Map map) throws HeadlessException {
 		this.setResizable(false);
 		loadMap(map);
 		Window = this;
+
+		this.addWindowListener(new WindowListener() {
+
+			@Override
+			public void windowOpened(WindowEvent e) {
+				// TODO Auto-generated method stub
+
+			}
+
+			@Override
+			public void windowIconified(WindowEvent e) {
+				// TODO Auto-generated method stub
+
+			}
+
+			@Override
+			public void windowDeiconified(WindowEvent e) {
+				// TODO Auto-generated method stub
+
+			}
+
+			@Override
+			public void windowDeactivated(WindowEvent e) {
+				// TODO Auto-generated method stub
+
+			}
+
+			@Override
+			public void windowClosing(WindowEvent e) {
+				map.reset();
+			}
+
+			@Override
+			public void windowClosed(WindowEvent e) {
+				// TODO Auto-generated method stub
+
+			}
+
+			@Override
+			public void windowActivated(WindowEvent e) {
+				// TODO Auto-generated method stub
+
+			}
+		});
+
 		this.addMouseListener(new MouseListener() {
 
 			@Override