Fixed game state related bugs

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

@@ -46,10 +46,9 @@ public class Game {
 					System.out.printf("%s in check!%n", player.color.opposite());
 				default:
 					boardComponent.repaint();
-					overlayComponent.displayArrow(move);
 					players.get(player.color.opposite()).requestMove();
-
 			}
+			overlayComponent.displayArrow(move);
 		} else player.requestMove();
 	}
 
@@ -57,12 +56,11 @@ public class Game {
 		players.get(Color.WHITE).requestMove();
 	}
 
-	public void restart() {
+	public void reset() {
 		players.forEach((k, v) -> v.cancelMove());
 		board.initializeDefaultPositions();
 		boardComponent.repaint();
 		overlayComponent.clearDots();
 		overlayComponent.clearArrow();
-		start();
 	}
 }

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

@@ -65,7 +65,7 @@ public class MainWindow {
 		mframe.getContentPane().add(toolPanel, BorderLayout.NORTH);
 
 		JButton btnRestart = new JButton("Restart");
-		btnRestart.addActionListener((evt) -> { if (game != null) game.restart(); });
+		btnRestart.addActionListener((evt) -> { if (game != null) game.reset(); game.start(); });
 		toolPanel.add(btnRestart);
 		mframe.pack();
 		mframe.setLocationRelativeTo(null);

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

@@ -80,9 +80,11 @@ public class MenuBar extends JMenuBar {
 	}
 
 	private void startGame() {
-		// TODO: Re-init board and overlay component
 		Game game = new Game(players, boardPane);
 		mainWindow.setGame(game);
+
+		// Update board and board component
+		game.reset();
 		game.start();
 	}
 }