GameOverScreen.java

/*
* Authors: Jerry Li & Victor Jiang
* Date: June 13, 2025
* Description: This class renders a game over screen when a player dies
*/

import java.awt.*;
import java.awt.event.ActionListener;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import javax.swing.*;

public class GameOverScreen extends JPanel {
    
    public final GamePanel PARENT;
    public final Font UI_FONT;
    public BufferedImage backgroundImage;
    
    // Constructor
    public GameOverScreen(GamePanel parent) {
        PARENT = parent;
        setLayout(null);
        setOpaque(false);
        UI_FONT = parent.getGameFont();
        
        loadBackgroundImage();
        setupComponents();
    }
    
    public void loadBackgroundImage() {
        try {
            backgroundImage = ImageIO.read(new File("./assets/images/backgrounds/mainmenubg.jpg"));
        } catch (IOException e) {
            System.err.println("Error loading game over background image: " + e.getMessage());
            backgroundImage = null;
        }
    }
      public JLabel scoreLabel;
    
    public void setupComponents() {
        // Game over title
        JLabel titleLabel = new JLabel("GAME OVER");
        titleLabel.setForeground(Color.RED);
        titleLabel.setFont(UI_FONT.deriveFont(Font.BOLD, 72f));
        titleLabel.setHorizontalAlignment(SwingConstants.CENTER);
        add(titleLabel);
        
        // Score display - placeholder text (will be updated when shown)
        scoreLabel = new JLabel("You survived 0 waves!");
        scoreLabel.setForeground(Color.WHITE);
        scoreLabel.setFont(UI_FONT.deriveFont(Font.BOLD, 32f));
        scoreLabel.setHorizontalAlignment(SwingConstants.CENTER);
        add(scoreLabel);          // Retry button
        GameButton retryButton = makeMenuButton("TRY AGAIN", 36f, e -> {
            PARENT.resetGame();
            if (Settings.DEBUG_MODE) {
                PARENT.setCurrentWave(DebugConfig.startWave);
                PARENT.playScreen.applyDebugSettings();
            }
            PARENT.showScreen("PLAYING");
        });
        add(retryButton);
          // Main menu button
        GameButton menuButton = makeMenuButton("MAIN MENU", 36f, e -> {
            PARENT.showScreen("MAIN_MENU");
        });
        add(menuButton);
          // Position components based on panel size
        addComponentListener(new java.awt.event.ComponentAdapter() {
            @Override
            public void componentResized(java.awt.event.ComponentEvent e) {
                positionComponents();
            }
        });
    }
    
    public GameButton makeMenuButton(String text, float size, ActionListener action) {
        GameButton b = new GameButton(text);        b.setFont(UI_FONT.deriveFont(Font.BOLD, size));
        b.addActionListener(action);
        b.setColor(new Color(76, 72, 144));
        b.addMouseListener(new java.awt.event.MouseAdapter() {
            @Override
            public void mouseEntered(java.awt.event.MouseEvent e) {
                b.setFont(UI_FONT.deriveFont(Font.BOLD, size * 1.15f));
            }
            @Override
            public void mouseExited(java.awt.event.MouseEvent e) {
                b.setFont(UI_FONT.deriveFont(Font.BOLD, size));
            }
        });
        return b;
    }
    
    public void positionComponents() {
        int w = getWidth() > 0 ? getWidth() : GamePanel.GAME_WIDTH;
        int h = getHeight() > 0 ? getHeight() : GamePanel.GAME_HEIGHT;
        
        Component[] components = getComponents();
        if (components.length >= 4) {
            // Title
            components[0].setBounds(0, h/5, w, 80);
            
            // Score
            components[1].setBounds(0, h/5 + 100, w, 40);
            
            // Retry button
            int btnWidth = 300;
            int btnHeight = 80;
            components[2].setBounds(w/2 - btnWidth/2, h/5 + 180, btnWidth, btnHeight);
            
            // Main menu button
            components[3].setBounds(w/2 - btnWidth/2, h/5 + 280, btnWidth, btnHeight);
        }
    }
    
    @Override
    protected void paintComponent(Graphics g) {
        Graphics2D g2d = (Graphics2D) g.create();
        
        // Draw dark background
        g2d.setColor(Color.BLACK);
        g2d.fillRect(0, 0, getWidth(), getHeight());
        
        // Draw background image with overlay
        if (backgroundImage != null) {
            g2d.setComposite(AlphaComposite.SrcOver.derive(0.3f));
            g2d.drawImage(backgroundImage, 0, 0, getWidth(), getHeight(), null);
        }
        
        g2d.dispose();
        super.paintComponent(g);
    }
      @Override
    public void invalidate() {
        super.invalidate();
        positionComponents();
    }
    
    /**
     * Updates the wave count display when the screen becomes visible
     */
    @Override
    public void addNotify() {
        super.addNotify();
        // Update the wave display to show the correct wave count
        updateWaveDisplay();
    }
    
    /**
     * Updates the wave display with the current wave number
     */
    public void updateWaveDisplay() {
        if (scoreLabel != null) {
            // Number of completed waves. If the player died mid-wave the
            // current wave hasn't been finished yet, so subtract one.
            int waveReached = Math.max(0, PARENT.getCurrentWave() - 1);
            String plural = waveReached == 1 ? " wave" : " waves";
            scoreLabel.setText("You survived " + waveReached + plural + "!");
        }
    }
}