Add Swing-based GUI for the Number Guessing Game

README.md

@@ -1,6 +1,14 @@
 # Number Guessing Game
 
-A simple number guessing game where you try to guess a randomly generated number. The game will tell you if your guess is too high or too low until you find the correct number.
+A simple number guessing game where you try to guess a randomly generated number. The game features both a user-friendly graphical interface (GUI) and a classic console mode. The GUI provides visual feedback with color-coded hints and tracks your progress in real-time.
+
+**Features:**
+- 🎮 Modern Swing-based GUI (default)
+- 💻 Classic console mode (use `--console` flag)
+- 🎯 Visual feedback with color coding
+- 📊 Real-time guess counter
+- ⌨️ Keyboard shortcuts for quick navigation
+- 🌍 Cross-platform compatible (Windows, macOS, Linux)
 
 ## Installation & Running
 
@@ -66,11 +74,40 @@ Run `run.sh`
 
 ### How to Play
 
+The game now features both a graphical user interface (GUI) and a console mode.
+
+#### GUI Mode (Default)
+
 1. Start the game using one of the methods above
-2. Enter your guess when prompted
-3. The game will tell you if your guess is too high or too low
-4. Keep guessing until you find the correct number
-5. The game will display how many guesses it took you
+2. A window will appear with the game interface
+3. Enter your guess in the text field and click "Submit Guess" or press Enter
+4. The game will provide visual feedback:
+   - Blue text indicates your guess was too low
+   - Orange text indicates your guess was too high
+   - Green text indicates you guessed correctly!
+5. The number of guesses is displayed and updated in real-time
+6. When you guess correctly, click "New Game" to play again
+7. Use the menu bar for additional options:
+   - File → New Game (Ctrl+N): Start a new game
+   - File → Exit: Close the application
+   - Help → About: View game information
+
+#### Console Mode
+
+To run the classic console version, use the `--console` or `-c` flag:
+
+```bash
+java -jar app.jar --console
+# or
+./run.sh --console  # Linux/Mac
+run.bat --console   # Windows
+```
+
+In console mode:
+1. Enter your guess when prompted
+2. The game will tell you if your guess is too high or too low
+3. Keep guessing until you find the correct number
+4. The game will display how many guesses it took you
 
 ## Development
 

app/src/main/java/io/github/project516/NumberGuessingGame/GUI.java

@@ -1,39 +1,306 @@
 package io.github.project516.NumberGuessingGame;
 
 import java.awt.*;
+import java.awt.event.*;
 import javax.swing.*;
 
-// TODO
-
 /**
  * Graphical User Interface for the Number Guessing Game. This class creates and manages the game's
- * window and UI components. Currently under development.
+ * window and UI components using Java Swing. Provides a user-friendly interface for playing the
+ * number guessing game with visual feedback and menu options.
  */
-public class GUI {
+public class GUI extends JFrame {
+    // Game state
+    private int targetNumber;
+    private int numberOfGuesses;
+    private RandomNumber randomGenerator;
+    private CheckGuess guessChecker;
+    private GameInfo gameInfo;
+
+    // UI Components
+    private JTextField guessField;
+    private JButton submitButton;
+    private JButton newGameButton;
+    private JLabel feedbackLabel;
+    private JLabel promptLabel;
+    private JLabel guessCountLabel;
+    private JPanel mainPanel;
+
+    /**
+     * Constructs the GUI and initializes all components. Sets up the game window with proper layout
+     * and starts a new game.
+     */
+    public GUI() {
+        super("Number Guessing Game");
+
+        // Initialize game objects
+        randomGenerator = new RandomNumber();
+        guessChecker = new CheckGuess();
+        gameInfo = new GameInfo();
+
+        // Set up the frame
+        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+        setSize(500, 400);
+        setLocationRelativeTo(null); // Center on screen
+        setResizable(false);
+
+        // Create menu bar
+        createMenuBar();
+
+        // Create main panel
+        createMainPanel();
+
+        // Start new game
+        startNewGame();
+
+        setVisible(true);
+    }
+
+    /** Creates and configures the menu bar with File and Help menus. */
+    private void createMenuBar() {
+        JMenuBar menuBar = new JMenuBar();
+
+        // File menu
+        JMenu fileMenu = new JMenu("File");
+        fileMenu.setMnemonic(KeyEvent.VK_F);
+
+        JMenuItem newGameItem = new JMenuItem("New Game", KeyEvent.VK_N);
+        newGameItem.setAccelerator(
+                KeyStroke.getKeyStroke(KeyEvent.VK_N, InputEvent.CTRL_DOWN_MASK));
+        newGameItem.addActionListener(e -> startNewGame());
+        fileMenu.add(newGameItem);
+
+        fileMenu.addSeparator();
+
+        JMenuItem exitItem = new JMenuItem("Exit", KeyEvent.VK_X);
+        exitItem.addActionListener(e -> System.exit(0));
+        fileMenu.add(exitItem);
+
+        // Help menu
+        JMenu helpMenu = new JMenu("Help");
+        helpMenu.setMnemonic(KeyEvent.VK_H);
+
+        JMenuItem aboutItem = new JMenuItem("About", KeyEvent.VK_A);
+        aboutItem.addActionListener(e -> showAboutDialog());
+        helpMenu.add(aboutItem);
+
+        menuBar.add(fileMenu);
+        menuBar.add(helpMenu);
+
+        setJMenuBar(menuBar);
+    }
+
+    /** Creates and configures the main game panel with all UI components. */
+    private void createMainPanel() {
+        mainPanel = new JPanel();
+        mainPanel.setLayout(new BoxLayout(mainPanel, BoxLayout.Y_AXIS));
+        mainPanel.setBorder(BorderFactory.createEmptyBorder(20, 20, 20, 20));
+
+        // Title label
+        JLabel titleLabel = new JLabel("Number Guessing Game");
+        titleLabel.setFont(new Font("Arial", Font.BOLD, 24));
+        titleLabel.setAlignmentX(Component.CENTER_ALIGNMENT);
+        mainPanel.add(titleLabel);
+
+        mainPanel.add(Box.createRigidArea(new Dimension(0, 20)));
+
+        // Instructions label
+        JLabel instructionsLabel = new JLabel("Guess a number between 1 and 100!");
+        instructionsLabel.setFont(new Font("Arial", Font.PLAIN, 14));
+        instructionsLabel.setAlignmentX(Component.CENTER_ALIGNMENT);
+        mainPanel.add(instructionsLabel);
+
+        mainPanel.add(Box.createRigidArea(new Dimension(0, 30)));
+
+        // Guess count label
+        guessCountLabel = new JLabel("Number of guesses: 0");
+        guessCountLabel.setFont(new Font("Arial", Font.PLAIN, 12));
+        guessCountLabel.setAlignmentX(Component.CENTER_ALIGNMENT);
+        mainPanel.add(guessCountLabel);
+
+        mainPanel.add(Box.createRigidArea(new Dimension(0, 20)));
+
+        // Prompt label
+        promptLabel = new JLabel("Enter your guess:");
+        promptLabel.setFont(new Font("Arial", Font.PLAIN, 14));
+        promptLabel.setAlignmentX(Component.CENTER_ALIGNMENT);
+        mainPanel.add(promptLabel);
+
+        mainPanel.add(Box.createRigidArea(new Dimension(0, 10)));
+
+        // Input panel
+        JPanel inputPanel = new JPanel();
+        inputPanel.setLayout(new FlowLayout(FlowLayout.CENTER));
+
+        guessField = new JTextField(10);
+        guessField.setFont(new Font("Arial", Font.PLAIN, 16));
+        guessField.addActionListener(e -> submitGuess());
+        inputPanel.add(guessField);
+
+        submitButton = new JButton("Submit Guess");
+        submitButton.setFont(new Font("Arial", Font.PLAIN, 14));
+        submitButton.addActionListener(e -> submitGuess());
+        inputPanel.add(submitButton);
+
+        mainPanel.add(inputPanel);
+
+        mainPanel.add(Box.createRigidArea(new Dimension(0, 20)));
+
+        // Feedback label
+        feedbackLabel = new JLabel(" ");
+        feedbackLabel.setFont(new Font("Arial", Font.BOLD, 16));
+        feedbackLabel.setAlignmentX(Component.CENTER_ALIGNMENT);
+        mainPanel.add(feedbackLabel);
+
+        mainPanel.add(Box.createRigidArea(new Dimension(0, 30)));
+
+        // New game button
+        newGameButton = new JButton("New Game");
+        newGameButton.setFont(new Font("Arial", Font.PLAIN, 14));
+        newGameButton.setAlignmentX(Component.CENTER_ALIGNMENT);
+        newGameButton.addActionListener(e -> startNewGame());
+        newGameButton.setVisible(false);
+        mainPanel.add(newGameButton);
+
+        add(mainPanel);
+    }
+
+    /** Starts a new game by resetting the game state and UI components. */
+    private void startNewGame() {
+        targetNumber = randomGenerator.number(100);
+        numberOfGuesses = 0;
+
+        guessField.setEnabled(true);
+        submitButton.setEnabled(true);
+        newGameButton.setVisible(false);
+
+        guessField.setText("");
+        feedbackLabel.setText(" ");
+        feedbackLabel.setForeground(Color.BLACK);
+        updateGuessCount();
+
+        guessField.requestFocus();
+    }
+
+    /** Processes the user's guess and updates the UI with feedback. */
+    private void submitGuess() {
+        String input = guessField.getText().trim();
+
+        if (input.isEmpty()) {
+            showFeedback("Please enter a number!", Color.RED);
+            return;
+        }
+
+        int guess;
+        try {
+            guess = Integer.parseInt(input);
+        } catch (NumberFormatException e) {
+            showFeedback("Invalid input! Please enter a valid number.", Color.RED);
+            guessField.setText("");
+            return;
+        }
+
+        try {
+            guessChecker.check(guess);
+        } catch (IllegalArgumentException e) {
+            showFeedback(e.getMessage(), Color.RED);
+            guessField.setText("");
+            return;
+        }
+
+        numberOfGuesses++;
+        updateGuessCount();
+
+        if (guess > targetNumber) {
+            showFeedback("Too high! Try a lower number.", new Color(255, 140, 0)); // Orange
+        } else if (guess < targetNumber) {
+            showFeedback("Too low! Try a higher number.", new Color(30, 144, 255)); // Blue
+        } else {
+            // Correct guess
+            showFeedback("Congratulations! You guessed it!", new Color(0, 128, 0)); // Green
+            guessField.setEnabled(false);
+            submitButton.setEnabled(false);
+            newGameButton.setVisible(true);
+            newGameButton.requestFocus();
+
+            // Show congratulations dialog
+            String message =
+                    String.format(
+                            "You guessed the number in %d %s!",
+                            numberOfGuesses, numberOfGuesses == 1 ? "guess" : "guesses");
+            JOptionPane.showMessageDialog(
+                    this, message, "Congratulations!", JOptionPane.INFORMATION_MESSAGE);
+        }
+
+        guessField.setText("");
+        guessField.requestFocus();
+    }
+
     /**
-     * Creates and displays the main game window. Sets up a JFrame with a centered label showing the
-     * game title.
+     * Updates the feedback label with the provided message and color.
+     *
+     * @param message the feedback message to display
+     * @param color the color to use for the message
      */
-    void createWindow() {
-        JFrame jframe = new JFrame("Number Guessing Game");
-        JLabel jlabel = new JLabel("Number Guessing Game", SwingConstants.CENTER);
-        // JButton jbutton = new JButton("Start game!");
+    private void showFeedback(String message, Color color) {
+        feedbackLabel.setText(message);
+        feedbackLabel.setForeground(color);
+    }
 
-        jframe.getContentPane().add(jlabel, BorderLayout.CENTER);
+    /** Updates the guess count label to reflect the current number of guesses. */
+    private void updateGuessCount() {
+        guessCountLabel.setText("Number of guesses: " + numberOfGuesses);
+    }
 
-        jframe.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE); // Exit on close
-        jframe.setSize(300, 300);
+    /** Displays the About dialog with game information. */
+    private void showAboutDialog() {
+        String message =
+                String.format(
+                        "Number Guessing Game\n\n"
+                                + "Version: %s\n"
+                                + "Author: %s\n\n"
+                                + "Project URL:\n%s\n\n"
+                                + "Online Documentation:\n%s",
+                        getVersion(),
+                        gameInfo.author(),
+                        gameInfo.projectURL(),
+                        gameInfo.onlineJavadoc());
 
-        jframe.setVisible(true); // Set visible
+        JOptionPane.showMessageDialog(
+                this, message, "About Number Guessing Game", JOptionPane.INFORMATION_MESSAGE);
+    }
+
+    /**
+     * Gets the version of the application.
+     *
+     * @return the version string
+     */
+    private String getVersion() {
+        ReadVersionFile versionReader = new ReadVersionFile();
+        try {
+            return versionReader.readVersion();
+        } catch (Exception e) {
+            return "Unknown";
+        }
+    }
+
+    /**
+     * Creates and displays the GUI window. This method should be called on the Event Dispatch
+     * Thread for thread safety.
+     */
+    public void createWindow() {
+        // This method is kept for backwards compatibility
+        // The constructor already makes the window visible
     }
 
     /**
-     * Test method for the GUI. Creates a GUI instance and displays the window for testing purposes.
+     * Main method for testing the GUI. Creates and displays the game window on the Event Dispatch
+     * Thread.
      *
      * @param args command line arguments (not used)
      */
-    public static void main(String[] args) { // Test GUI
-        GUI gui = new GUI();
-        gui.createWindow();
+    public static void main(String[] args) {
+        // Use SwingUtilities to ensure thread safety
+        SwingUtilities.invokeLater(() -> new GUI());
     }
 }