Final Project - Flappy Bird Menggunakan BlueJ

Pada kesempatan kali ini, saya akan mencoba untuk berbagi ilmu yang sebelumnya telah saya dapatkan di kelas PBO. Salah satunya adalah mencoba untuk membuat program tiruan dari Flappy Bird. Langsung saja ke source code :

• Class Renderer

import java.awt.Graphics;

import javax.swing.JPanel;

public class Renderer extends JPanel
{

    private static final long serialVersionUID = 1L;

    @Override
    protected void paintComponent(Graphics g)
    {
        super.paintComponent(g);

        FlappyBird.flappyBird.repaint(g);
    }
    
}

• Class FlappyBird

import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Rectangle;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.util.ArrayList;
import java.util.Random;

import javax.swing.JFrame;
import javax.swing.Timer;

public class FlappyBird implements ActionListener, MouseListener, KeyListener
{

    public static FlappyBird flappyBird;

    public final int WIDTH = 800, HEIGHT = 800;

    public Renderer renderer;

    public Rectangle bird;

    public ArrayList<Rectangle> columns;

    public int ticks, yMotion, score, hig;

    public boolean gameOver, started;

    public Random rand;

    public FlappyBird()
    {
        JFrame jframe = new JFrame();
        Timer timer = new Timer(20, this);

        renderer = new Renderer();
        rand = new Random();

        jframe.add(renderer);
        jframe.setTitle("Flappy Bird");
        jframe.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        jframe.setSize(WIDTH, HEIGHT);
        jframe.addMouseListener(this);
        jframe.addKeyListener(this);
        jframe.setResizable(false);
        jframe.setVisible(true);

        bird = new Rectangle(WIDTH / 2 - 10, HEIGHT / 2 - 10, 20, 20);
        columns = new ArrayList<Rectangle>();

        addColumn(true);
        addColumn(true);
        addColumn(true);
        addColumn(true);

        timer.start();
    }

    public void addColumn(boolean start)
    {
        int space = 300;
        int width = 100;
        int height = 200;

        if (start)
        {
            columns.add(new Rectangle(WIDTH + width + columns.size() * 300, HEIGHT - height - 120, width, height));
            columns.add(new Rectangle(WIDTH + width + (columns.size() - 1) * 300, 0, width, HEIGHT - height - space));
        }
        else
        {
            columns.add(new Rectangle(columns.get(columns.size() - 1).x + 600, HEIGHT - height - 120, width, height));
            columns.add(new Rectangle(columns.get(columns.size() - 1).x, 0, width, HEIGHT - height - space));
        }
    }

    public void paintColumn(Graphics g, Rectangle column)
    {
        g.setColor(Color.white.darker());
        g.fillRect(column.x, column.y, column.width, column.height);
    }

    public void jump()
    {
        if (gameOver)
        {
            bird = new Rectangle(WIDTH / 2 - 10, HEIGHT / 2 - 10, 20, 20);
            columns.clear();
            yMotion = 0;
            score = 0;

            addColumn(true);
            addColumn(true);
            addColumn(true);
            addColumn(true);

            gameOver = false;
        }

        if (!started)
        {
            started = true;
        }
        else if (!gameOver)
        {
            if (yMotion > 0)
            {
                yMotion = 0;
            }

            yMotion -= 10;
        }
    }

    @Override
    public void actionPerformed(ActionEvent e)
    {
        int speed = 10;

        ticks++;

        if (started)
        {
            for (int i = 0; i < columns.size(); i++)
            {
                Rectangle column = columns.get(i);

                column.x -= speed;
            }

            if (ticks % 2 == 0 && yMotion < 15)
            {
                yMotion += 2;
            }

            for (int i = 0; i < columns.size(); i++)
            {
                Rectangle column = columns.get(i);

                if (column.x + column.width < 0)
                {
                    columns.remove(column);

                    if (column.y == 0)
                    {
                        addColumn(false);
                    }
                }
            }

            bird.y += yMotion;

            for (Rectangle column : columns)
            {
                if (column.y == 0 && bird.x + bird.width / 2 > column.x + column.width / 2 - 10 && bird.x + bird.width / 2 < column.x + column.width / 2 + 10)
                {
                    score++;
            //        highScore == max(score, highScore);
                }

                if (column.intersects(bird))
                {
                    gameOver = true;

                    if (bird.x <= column.x)
                    {
                        bird.x = column.x - bird.width;

                    }
                    else
                    {
                        if (column.y != 0)
                        {
                            bird.y = column.y - bird.height;
                        }
                        else if (bird.y < column.height)
                        {
                            bird.y = column.height;
                        }
                    }
                }
            }

            if (bird.y > HEIGHT - 120 || bird.y < 0)
            {
                gameOver = true;
            }

            if (bird.y + yMotion >= HEIGHT - 120)
            {
                bird.y = HEIGHT - 120 - bird.height;
                gameOver = true;
            }
        }

        renderer.repaint();
    }

    public void repaint(Graphics g)
    {
        g.setColor(Color.cyan);
        g.fillRect(0, 0, WIDTH, HEIGHT);

        g.setColor(Color.orange);
        g.fillRect(0, HEIGHT - 120, WIDTH, 120);

        g.setColor(Color.green);
        g.fillRect(0, HEIGHT - 120, WIDTH, 20);

        g.setColor(Color.blue);
        g.fillRect(bird.x, bird.y, bird.width, bird.height);

        for (Rectangle column : columns)
        {
            paintColumn(g, column);
        }

        g.setColor(Color.black);
        g.setFont(new Font("Arial", 1, 100));

        if (!started)
        {
            g.drawString("Click to start!", 75, HEIGHT / 2 - 50);
        }

        if (gameOver)
        {
            g.drawString("Game Over!", 100, HEIGHT / 2 - 50);
        }

        if (!gameOver && started)
        {
            g.drawString(String.valueOf(score), WIDTH / 2 - 25, 100);
        }
    }

    public static void main(String[] args)
    {
        flappyBird = new FlappyBird();
    }

    @Override
    public void mouseClicked(MouseEvent e)
    {
        jump();
    }

    @Override
    public void keyReleased(KeyEvent e)
    {
        if (e.getKeyCode() == KeyEvent.VK_SPACE)
        {
            jump();
        }
    }
    
    @Override
    public void mousePressed(MouseEvent e)
    {
    }

    @Override
    public void mouseReleased(MouseEvent e)
    {
    }

    @Override
    public void mouseEntered(MouseEvent e)
    {
    }

    @Override
    public void mouseExited(MouseEvent e)
    {
    }

    @Override
    public void keyTyped(KeyEvent e)
    {

    }

    @Override
    public void keyPressed(KeyEvent e)
    {

    }

}

Hasil dari kodingan tersebut adalah :