Fall Guys Game Basic Interface Created Using Java Swing

FallGuysGame.java

import javax.swing.*;
import java.awt.*;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;

public class FallGuysGame extends JFrame implements KeyListener {
    private int playerX;
    private int playerY;
    private int playerWidth;
    private int playerHeight;
    private int jumpHeight;
    private boolean isJumping;

    public FallGuysGame() {
        setTitle("Fall Guys Game");
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setPreferredSize(new Dimension(800, 600));
        addKeyListener(this);

        playerX = 350;
        playerY = 400;
        playerWidth = 100;
        playerHeight = 100;
        jumpHeight = 200;
        isJumping = false;

        pack();
        setLocationRelativeTo(null);
        setVisible(true);
    }

    @Override
    public void paint(Graphics g) {
        super.paint(g);

        // Draw player character
        g.setColor(Color.BLUE);
        g.fillRect(playerX, playerY, playerWidth, playerHeight);

        // Draw ground
        g.setColor(Color.GREEN);
        g.fillRect(0, 500, getWidth(), 100);
    }

    private void jump() {
        if (!isJumping) {
            isJumping = true;
            Thread jumpThread = new Thread(new Runnable() {
                @Override
                public void run() {
                    int startY = playerY;
                    int targetY = playerY - jumpHeight;
                    int stepSize = 10;
                    int delay = 20;

                    for (int y = startY; y >= targetY; y -= stepSize) {
                        playerY = y;
                        repaint();
                        try {
                            Thread.sleep(delay);
                        } catch (InterruptedException e) {
                            e.printStackTrace();
                        }
                    }

                    for (int y = targetY; y <= startY; y += stepSize) {
                        playerY = y;
                        repaint();
                        try {
                            Thread.sleep(delay);
                        } catch (InterruptedException e) {
                            e.printStackTrace();
                        }
                    }

                    playerY = startY;
                    isJumping = false;
                    repaint();
                }
            });

            jumpThread.start();
        }
    }

    @Override
    public void keyTyped(KeyEvent e) {
        // Not used
    }

    @Override
    public void keyPressed(KeyEvent e) {
        int keyCode = e.getKeyCode();

        if (keyCode == KeyEvent.VK_SPACE) {
            jump();
        }
    }

    @Override
    public void keyReleased(KeyEvent e) {
        // Not used
    }

    public static void main(String[] args) {
        SwingUtilities.invokeLater(new Runnable() {
            @Override
            public void run() {
                FallGuysGame game = new FallGuysGame();
            }
        });
    }
}