Implemented UCI handshake with engine

+ UCI game start in MenuBar
+ UCI game creation method in Game
- Fixed double game instance bug after starting a new game
+ Name and author parsing in UCIReceiver

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

@@ -62,6 +62,14 @@ public class Game {
 		return new Game(players, boardPane);
 	}
 
+	public static Game createUCI(BoardPane boardPane, String enginePath) {
+		Map<Color, Player> players = new HashMap<>();
+
+		players.put(Color.WHITE, new NaturalPlayer(Color.WHITE, boardPane.getOverlayComponent()));
+		players.put(Color.BLACK, new UCIPlayer(Color.BLACK, enginePath));
+		return new Game(players, boardPane);
+	}
+
 	public void onMove(Player player, Move move) {
 		if (board.getPos(move).getColor() == player.color && board.attemptMove(move)) {
 			System.out.printf("%s: %s%n", player.color, move);

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

@@ -22,6 +22,7 @@ public class UCIPlayer extends Player {
 			handle = new UCIHandle(enginePath);
 			listener	= new UCIPlayerListener();
 			handle.setListener(listener);
+			handle.start();
 		} catch (IOException ex) {
 			ex.printStackTrace();
 		}

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

@@ -28,25 +28,21 @@ class UCIPlayerListener implements UCIListener {
 	@Override
 	public void onUCIOk() {
 		// TODO Auto-generated method stub
-
 	}
 
 	@Override
 	public void onReadyOk() {
 		// TODO Auto-generated method stub
-
 	}
 
 	@Override
 	public void onBestMove(String move) {
 		// TODO Auto-generated method stub
-
 	}
 
 	@Override
 	public void onBestMove(String move, String ponderMove) {
 		// TODO Auto-generated method stub
-
 	}
 
 	@Override
@@ -72,7 +68,6 @@ class UCIPlayerListener implements UCIListener {
 	@Override
 	public void onRegistrationOk() {
 		System.out.println("Registration ok");
-
 	}
 
 	@Override

src/dev/kske/chess/uci/UCIHandle.java

@@ -17,13 +17,13 @@ public class UCIHandle {
 
 	public UCIHandle(String enginePath) throws IOException {
 		process		= new ProcessBuilder(enginePath).start();
-		out			= new PrintWriter(process.getOutputStream());
+		out			= new PrintWriter(process.getOutputStream(), true);
 		receiver	= new UCIReceiver(process.getInputStream());
 	}
 
 	public void start() {
-		uci();
 		new Thread(receiver).start();
+		uci();
 	}
 
 	/**

src/dev/kske/chess/uci/UCIReceiver.java

@@ -31,8 +31,9 @@ public class UCIReceiver implements Runnable {
 	@Override
 	public void run() {
 		try {
-			while (in.ready())
-				parse(in.readLine());
+			String line;
+			while (!Thread.currentThread().isInterrupted())
+				if ((line = in.readLine()) != null) parse(line);
 		} catch (IndexOutOfBoundsException ex) {
 			System.err.println("Too few arguments were provided!");
 			ex.printStackTrace();
@@ -72,9 +73,9 @@ public class UCIReceiver implements Runnable {
 	}
 
 	private void parseId(String line) {
-		String	param	= line.substring(line.indexOf(' '));
+		String	param	= line.substring(0, line.indexOf(' '));
 		String	arg		= line.substring(param.length() + 1);
-		switch (line) {
+		switch (param) {
 			case "name":
 				listener.onIdName(arg);
 				break;

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

@@ -76,5 +76,8 @@ public class MainWindow {
 
 	public Game getGame() { return game; }
 
-	public void setGame(Game game) { this.game = game; }
+	public void setGame(Game game) {
+		if (this.game != null) this.game.disconnect();
+		this.game = game;
+	}
 }

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

@@ -3,6 +3,7 @@ package dev.kske.chess.ui;
 import javax.swing.JMenu;
 import javax.swing.JMenuBar;
 import javax.swing.JMenuItem;
+import javax.swing.JOptionPane;
 
 import dev.kske.chess.game.Game;
 
@@ -32,6 +33,7 @@ public class MenuBar extends JMenuBar {
 		JMenuItem	naturalMenuItem	= new JMenuItem("Game against natural opponent");
 		JMenuItem	aiMenuItem		= new JMenuItem("Game against artificial opponent");
 		JMenuItem	aiVsAiMenuItem	= new JMenuItem("Watch AI vs. AI");
+		JMenuItem	uciMenuItem		= new JMenuItem("UCI");
 
 		naturalMenuItem.addActionListener((evt) -> startGame(Game.createNatural(boardPane)));
 
@@ -44,9 +46,18 @@ public class MenuBar extends JMenuBar {
 
 		aiVsAiMenuItem.addActionListener((evt) -> startGame(Game.createAIVsAI(boardPane, 4, 3, -10, -10)));
 
+		uciMenuItem.addActionListener((evt) -> {
+			String enginePath = JOptionPane.showInputDialog(getParent(),
+					"Enter the path to a UCI-compatible chess engine:",
+					"Engine selection",
+					JOptionPane.QUESTION_MESSAGE);
+			if (enginePath != null) startGame(Game.createUCI(boardPane, enginePath));
+		});
+
 		gameMenu.add(naturalMenuItem);
 		gameMenu.add(aiMenuItem);
 		gameMenu.add(aiVsAiMenuItem);
+		gameMenu.add(uciMenuItem);
 
 		add(gameMenu);