Added RestartEvent to clear move list after game restart

src/dev/kske/chess/board/Log.java

@@ -55,7 +55,7 @@ public class Log implements Iterable<MoveNode> {
 		return new Iterator<MoveNode>() {
 
 			private MoveNode	current	= root;
-			private boolean		hasNext	= true;
+			private boolean		hasNext	= !isEmpty();
 
 			@Override
 			public boolean hasNext() { return hasNext; }

src/dev/kske/chess/event/RestartEvent.java

@@ -0,0 +1,20 @@
+package dev.kske.chess.event;
+
+import dev.kske.chess.ui.GamePane;
+
+/**
+ * Project: <strong>Chess</strong><br>
+ * File: <strong>RestartEvent.java</strong><br>
+ * Created: <strong>30 Oct 2019</strong><br>
+ * 
+ * @author Kai S. K. Engelbart
+ */
+public class RestartEvent implements Event<GamePane> {
+
+	private final GamePane gamePane;
+
+	public RestartEvent(GamePane source) { gamePane = source; }
+
+	@Override
+	public GamePane getData() { return gamePane; }
+}

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

@@ -21,6 +21,7 @@ import dev.kske.chess.board.Piece.Color;
 import dev.kske.chess.event.Event;
 import dev.kske.chess.event.EventBus;
 import dev.kske.chess.event.MoveEvent;
+import dev.kske.chess.event.RestartEvent;
 import dev.kske.chess.event.Subscribable;
 import dev.kske.chess.game.Game;
 import dev.kske.chess.game.NaturalPlayer;
@@ -58,7 +59,13 @@ public class GamePane extends JComponent {
 
 		JPanel toolPanel = new JPanel();
 		btnRestart = new JButton("Restart");
-		btnRestart.addActionListener((evt) -> { if (game != null) game.reset(); game.start(); });
+		btnRestart.addActionListener((evt) -> {
+			if (game != null) {
+				game.reset();
+				game.start();
+			}
+			EventBus.getInstance().dispatch(new RestartEvent(this));
+		});
 
 		btnSwapColors = new JButton("Play as black");
 		btnSwapColors.addActionListener((evt) -> {
@@ -130,7 +137,7 @@ public class GamePane extends JComponent {
 			letterLabel.setHorizontalAlignment(JLabel.CENTER);
 			letterPanel.add(letterLabel);
 		}
-		
+
 		JScrollPane			scrollPane		= new JScrollPane();
 		GridBagConstraints	gbc_scrollPane	= new GridBagConstraints();
 		gbc_scrollPane.fill		= GridBagConstraints.BOTH;
@@ -147,10 +154,9 @@ public class GamePane extends JComponent {
 
 		EventBus.getInstance().register(new Subscribable() {
 
-			// TODO: Clean on restart
 			@Override
 			public void handle(Event<?> event) {
-				if (game.getBoard().getLog() == null || game.getBoard().getLog().isEmpty()) return;
+				if (game.getBoard().getLog() == null) return;
 
 				DefaultListModel<MoveNode> model = new DefaultListModel<>();
 				game.getBoard().getLog().forEach(node -> model.addElement(node));
@@ -158,9 +164,7 @@ public class GamePane extends JComponent {
 			}
 
 			@Override
-			public Set<Class<?>> supports() {
-				return new HashSet<>(Arrays.asList(MoveEvent.class));
-			}
+			public Set<Class<?>> supports() { return new HashSet<>(Arrays.asList(MoveEvent.class, RestartEvent.class)); }
 		});
 	}
 
@@ -183,7 +187,7 @@ public class GamePane extends JComponent {
 	public void setGame(Game game) {
 		if (this.game != null) this.game.stop();
 		this.game = game;
-		btnSwapColors.setEnabled(game.getPlayers().get(Color.WHITE) instanceof NaturalPlayer
-				^ game.getPlayers().get(Color.BLACK) instanceof NaturalPlayer);
+		btnSwapColors
+			.setEnabled(game.getPlayers().get(Color.WHITE) instanceof NaturalPlayer ^ game.getPlayers().get(Color.BLACK) instanceof NaturalPlayer);
 	}
 }