client.java

Client.java

+import javax.swing.*;
+import java.awt.*;
+import java.awt.event.*;
+import java.io.*;
+import java.net.*;
+
+public class Client extends JFrame {
+    private static final int WIDTH = 800, HEIGHT = 600;
+    private static final Color BACKGROUND_COLOR = new Color(135, 206, 235); // Sky blue
+
+    private Socket socket;
+    private PrintWriter out;
+    private BufferedReader in;
+    private GamePanel gamePanel;
+    private String playerId;
+
+    public Client(String host, int port) {
+        setTitle("Bunny Crossy");
+        setSize(WIDTH, HEIGHT);
+        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+        setResizable(false);
+
+        showStartPage(host, port);
+    }
+
+    private void showStartPage(String host, int port) {
+        JPanel startPanel = new JPanel() {
+            @Override
+            protected void paintComponent(Graphics g) {
+                super.paintComponent(g);
+                g.setColor(BACKGROUND_COLOR);
+                g.fillRect(0, 0, getWidth(), getHeight());
+            }
+        };
+        startPanel.setLayout(new BoxLayout(startPanel, BoxLayout.Y_AXIS));
+
+        JLabel titleLabel = new JLabel("Bunny Crossy");
+        titleLabel.setFont(new Font("Arial", Font.BOLD, 48));
+        titleLabel.setForeground(Color.WHITE);
+        titleLabel.setAlignmentX(Component.CENTER_ALIGNMENT);
+
+        JButton singlePlayerButton = createStyledButton("Single Player");
+        JButton multiplayerButton = createStyledButton("Multiplayer");
+
+        singlePlayerButton.addActionListener(e -> connectToServer(host, port, "SINGLEPLAYER"));
+        multiplayerButton.addActionListener(e -> connectToServer(host, port, "MULTIPLAYER"));
+
+        startPanel.add(Box.createVerticalGlue());
+        startPanel.add(titleLabel);
+        startPanel.add(Box.createRigidArea(new Dimension(0, 50)));
+        startPanel.add(singlePlayerButton);
+        startPanel.add(Box.createRigidArea(new Dimension(0, 20)));
+        startPanel.add(multiplayerButton);
+        startPanel.add(Box.createVerticalGlue());
+
+        add(startPanel);
+        setVisible(true);
+    }
+
+    private JButton createStyledButton(String text) {
+        JButton button = new JButton(text);
+        button.setFont(new Font("Arial", Font.BOLD, 24));
+        button.setAlignmentX(Component.CENTER_ALIGNMENT);
+        button.setMaximumSize(new Dimension(200, 50));
+        button.setBackground(new Color(255, 165, 0));
+        button.setForeground(Color.WHITE);
+        button.setFocusPainted(false);
+        button.setBorderPainted(false);
+        return button;
+    }
+
+    private void connectToServer(String host, int port, String mode) {
+        try {
+            socket = new Socket(host, port);
+            out = new PrintWriter(socket.getOutputStream(), true);
+            in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
+            
+            out.println(mode);
+            
+            new Thread(this::receiveGameState).start();
+            showGamePanel();
+        } catch (IOException e) {
+            e.printStackTrace();
+            JOptionPane.showMessageDialog(this, "Failed to connect to the server.", "Connection Error", JOptionPane.ERROR_MESSAGE);
+        }
+    }
+
+    private void showGamePanel() {
+        getContentPane().removeAll();
+        gamePanel = new GamePanel();
+        add(gamePanel);
+        addKeyListener(new KeyAdapter() {
+            public void keyPressed(KeyEvent e) {
+                sendCommand(e.getKeyCode());
+            }
+        });
+        revalidate();
+        repaint();
+        requestFocus();
+    }
+
+    private void sendCommand(int keyCode) {
+        String command = switch (keyCode) {
+            case KeyEvent.VK_UP -> "MOVE:UP";
+            case KeyEvent.VK_DOWN -> "MOVE:DOWN";
+            case KeyEvent.VK_LEFT -> "MOVE:LEFT";
+            case KeyEvent.VK_RIGHT -> "MOVE:RIGHT";
+            case KeyEvent.VK_R -> "RESTART";
+            default -> null;
+        };
+        if (command != null && out != null) {
+            out.println(playerId + ":" + command);
+        }
+    }
+
+    private void receiveGameState() {
+        try {
+            String line;
+            while ((line = in.readLine()) != null) {
+                final String finalLine = line;
+                if (finalLine.startsWith("ID:")) {
+                    playerId = finalLine.substring(3);
+                } else {
+                    SwingUtilities.invokeLater(() -> gamePanel.updateGameState(finalLine));
+                }
+            }
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+
+    private class GamePanel extends JPanel {
+        private GameState gameState = new GameState();
+
+        public GamePanel() {
+            setBackground(Color.BLACK);
+        }
+
+        public void updateGameState(String state) {
+            gameState.fromString(state);
+            repaint();
+        }
+
+        @Override
+        protected void paintComponent(Graphics g) {
+            super.paintComponent(g);
+            gameState.render(g);
+        }
+    }
+
+    public static void main(String[] args) {
+        SwingUtilities.invokeLater(() -> new Client("localhost", 12345));
+    }
+}