Fixed input listening bug in NaturalPlayer

+ disconnect methods in Game and Player
+ NaturalPlayer removes its MouseListener from OverlayComponent after
the disconnect method is called

src/dev/kske/chess/game/Game.java

@@ -93,5 +93,12 @@ public class Game {
 		overlayComponent.clearArrow();
 	}
 
+	/**
+	 * Removed all connections between the game and the ui.
+	 */
+	public void disconnect() {
+		players.values().forEach(Player::disconnect);
+	}
+
 	public Board getBoard() { return board; }
 }

src/dev/kske/chess/game/NaturalPlayer.java

@@ -1,7 +1,7 @@
 package dev.kske.chess.game;
 
-import java.awt.event.MouseAdapter;
 import java.awt.event.MouseEvent;
+import java.awt.event.MouseListener;
 import java.util.List;
 import java.util.stream.Collectors;
 
@@ -18,43 +18,19 @@ import dev.kske.chess.ui.OverlayComponent;
  * Created: <strong>06.07.2019</strong><br>
  * Author: <strong>Kai S. K. Engelbart</strong>
  */
-public class NaturalPlayer extends Player {
+public class NaturalPlayer extends Player implements MouseListener {
 
-	private boolean moveRequested;
+	private final OverlayComponent overlayComponent;
+
+	private boolean		moveRequested;
+	private Position	pos;
 
 	public NaturalPlayer(Color color, OverlayComponent overlayComponent) {
 		super(color);
-		moveRequested = false;
-		overlayComponent.addMouseListener(new MouseAdapter() {
+		this.overlayComponent	= overlayComponent;
+		moveRequested			= false;
 
-			private Position pos;
-
-			@Override
-			public void mousePressed(MouseEvent evt) {
-				if (!moveRequested) return;
-				if (pos == null) {
-					pos = new Position(evt.getPoint().x / overlayComponent.getTileSize(),
-							evt.getPoint().y / overlayComponent.getTileSize());
-
-					Board board = (Board) NaturalPlayer.this.board.clone();
-					if (board.get(pos) != null && board.get(pos).getColor() == color) {
-						List<Position> positions = board.getMoves(pos)
-							.stream()
-							.map(move -> move.dest)
-							.collect(Collectors.toList());
-						overlayComponent.displayDots(positions);
-					} else pos = null;
-				} else {
-					Position dest = new Position(evt.getPoint().x / overlayComponent.getTileSize(),
-							evt.getPoint().y / overlayComponent.getTileSize());
-
-					overlayComponent.clearDots();
-					moveRequested = false;
-					game.onMove(NaturalPlayer.this, new Move(pos, dest, Type.UNKNOWN));
-					pos = null;
-				}
-			}
-		});
+		overlayComponent.addMouseListener(this);
 	}
 
 	@Override
@@ -66,4 +42,47 @@ public class NaturalPlayer extends Player {
 	public void cancelMove() {
 		moveRequested = false;
 	}
+
+	@Override
+	public void disconnect() {
+		overlayComponent.removeMouseListener(this);
+	}
+
+	@Override
+	public void mousePressed(MouseEvent evt) {
+		if (!moveRequested) return;
+		if (pos == null) {
+			pos = new Position(evt.getPoint().x / overlayComponent.getTileSize(),
+					evt.getPoint().y / overlayComponent.getTileSize());
+
+			Board board = (Board) NaturalPlayer.this.board.clone();
+			if (board.get(pos) != null && board.get(pos).getColor() == color) {
+				List<Position> positions = board.getMoves(pos)
+					.stream()
+					.map(move -> move.dest)
+					.collect(Collectors.toList());
+				overlayComponent.displayDots(positions);
+			} else pos = null;
+		} else {
+			Position dest = new Position(evt.getPoint().x / overlayComponent.getTileSize(),
+					evt.getPoint().y / overlayComponent.getTileSize());
+
+			overlayComponent.clearDots();
+			moveRequested = false;
+			game.onMove(NaturalPlayer.this, new Move(pos, dest, Type.UNKNOWN));
+			pos = null;
+		}
+	}
+
+	@Override
+	public void mouseClicked(MouseEvent e) {}
+
+	@Override
+	public void mouseReleased(MouseEvent e) {}
+
+	@Override
+	public void mouseEntered(MouseEvent e) {}
+
+	@Override
+	public void mouseExited(MouseEvent e) {}
 }

src/dev/kske/chess/game/Player.java

@@ -23,6 +23,8 @@ public abstract class Player {
 
 	public abstract void cancelMove();
 
+	public abstract void disconnect();
+
 	public Game getGame() { return game; }
 
 	public void setGame(Game game) {

src/dev/kske/chess/game/ai/AIPlayer.java

@@ -98,4 +98,7 @@ public class AIPlayer extends Player {
 			}
 		}
 	}
+
+	@Override
+	public void disconnect() {}
 }

src/dev/kske/chess/ui/MenuBar.java

@@ -16,12 +16,12 @@ public class MenuBar extends JMenuBar {
 
 	private static final long serialVersionUID = -7221583703531248228L;
 
-	private final MainWindow			mainWindow;
-	private final BoardPane				boardPane;
+	private final MainWindow	mainWindow;
+	private final BoardPane		boardPane;
 
 	public MenuBar(MainWindow mainWindow) {
-		this.mainWindow		= mainWindow;
-		boardPane			= mainWindow.getBoardPane();
+		this.mainWindow	= mainWindow;
+		boardPane		= mainWindow.getBoardPane();
 
 		initGameMenu();
 	}