Pada kali ini kita akan membuat game pong dengan bahasa Java menggunakan BlueJ.
Pada package pong ini terdapat 4 class, berikut gambar mapping class-classnya.
Class Pong
package pong;
import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.util.Random;
import javax.swing.JFrame;
import javax.swing.Timer;
public class Pong implements ActionListener, KeyListener
{
public static Pong pong;
public int width = 700, height = 700;
public Renderer renderer;
public Paddle player1;
public Paddle player2;
public Ball ball;
public boolean bot = false, selectingDifficulty;
public boolean w, s, up, down;
public int gameStatus = 0, scoreLimit = 7, playerWon; //0 = Menu, 1 = Paused, 2 = Playing, 3 = Over
public int botDifficulty, botMoves, botCooldown = 0;
public Random random;
public JFrame jframe;
public Pong()
{
Timer timer = new Timer(20, this);
random = new Random();
jframe = new JFrame("Pong");
renderer = new Renderer();
jframe.setSize(width + 15, height + 35);
jframe.setVisible(true);
jframe.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
jframe.add(renderer);
jframe.addKeyListener(this);
timer.start();
}
public void start()
{
gameStatus = 2;
player1 = new Paddle(this, 1);
player2 = new Paddle(this, 2);
ball = new Ball(this);
}
public void update()
{
if (player1.score >= scoreLimit)
{
playerWon = 1;
gameStatus = 3;
}
if (player2.score >= scoreLimit)
{
gameStatus = 3;
playerWon = 2;
}
if (w)
{
player1.move(true);
}
if (s)
{
player1.move(false);
}
if (!bot)
{
if (up)
{
player2.move(true);
}
if (down)
{
player2.move(false);
}
}
else
{
if (botCooldown > 0)
{
botCooldown--;
if (botCooldown == 0)
{
botMoves = 0;
}
}
if (botMoves < 10)
{
if (player2.y + player2.height / 2 < ball.y)
{
player2.move(false);
botMoves++;
}
if (player2.y + player2.height / 2 > ball.y)
{
player2.move(true);
botMoves++;
}
if (botDifficulty == 0)
{
botCooldown = 20;
}
if (botDifficulty == 1)
{
botCooldown = 15;
}
if (botDifficulty == 2)
{
botCooldown = 10;
}
}
}
ball.update(player1, player2);
}
public void render(Graphics2D g)
{
g.setColor(Color.BLUE);
g.fillRect(0, 0, width, height);
g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
if (gameStatus == 0)
{
g.setColor(Color.WHITE);
g.setFont(new Font("Arial", 1, 50));
g.drawString("PONG", width / 2 - 75, 50);
if (!selectingDifficulty)
{
g.setFont(new Font("Arial", 1, 30));
g.drawString("Press Space to Play", width / 2 - 150, height / 2 - 25);
g.drawString("Press Shift to Play with Bot", width / 2 - 200, height / 2 + 25);
g.drawString("<< Score Limit: " + scoreLimit + " >>", width / 2 - 150, height / 2 + 75);
}
}
if (selectingDifficulty)
{
String string = botDifficulty == 0 ? "Easy" : (botDifficulty == 1 ? "Medium" : "Hard");
g.setFont(new Font("Arial", 1, 30));
g.drawString("<< Bot Difficulty: " + string + " >>", width / 2 - 180, height / 2 - 25);
g.drawString("Press Space to Play", width / 2 - 150, height / 2 + 25);
}
if (gameStatus == 1)
{
g.setColor(Color.WHITE);
g.setFont(new Font("Arial", 1, 50));
g.drawString("PAUSED", width / 2 - 103, height / 2 - 25);
}
if (gameStatus == 1 || gameStatus == 2)
{
g.setColor(Color.WHITE);
g.setStroke(new BasicStroke(5f));
g.drawLine(width / 2, 0, width / 2, height);
g.setStroke(new BasicStroke(2f));
g.drawOval(width / 2 - 150, height / 2 - 150, 300, 300);
g.setFont(new Font("Arial", 1, 50));
g.drawString(String.valueOf(player1.score), width / 2 - 90, 50);
g.drawString(String.valueOf(player2.score), width / 2 + 65, 50);
player1.render(g);
player2.render(g);
ball.render(g);
}
if (gameStatus == 3)
{
g.setColor(Color.WHITE);
g.setFont(new Font("Arial", 1, 50));
g.drawString("PONG", width / 2 - 75, 50);
if (bot && playerWon == 2)
{
g.drawString("The Bot Wins!", width / 2 - 170, 200);
}
else
{
g.drawString("Player " + playerWon + " Wins!", width / 2 - 165, 200);
}
g.setFont(new Font("Arial", 1, 30));
g.drawString("Press Space to Play Again", width / 2 - 185, height / 2 - 25);
g.drawString("Press ESC for Menu", width / 2 - 140, height / 2 + 25);
}
}
@Override
public void actionPerformed(ActionEvent e)
{
if (gameStatus == 2)
{
update();
}
renderer.repaint();
}
public static void main(String[] args)
{
pong = new Pong();
}
@Override
public void keyPressed(KeyEvent e)
{
int id = e.getKeyCode();
if (id == KeyEvent.VK_W)
{
w = true;
}
else if (id == KeyEvent.VK_S)
{
s = true;
}
else if (id == KeyEvent.VK_UP)
{
up = true;
}
else if (id == KeyEvent.VK_DOWN)
{
down = true;
}
else if (id == KeyEvent.VK_RIGHT)
{
if (selectingDifficulty)
{
if (botDifficulty < 2)
{
botDifficulty++;
}
else
{
botDifficulty = 0;
}
}
else if (gameStatus == 0)
{
scoreLimit++;
}
}
else if (id == KeyEvent.VK_LEFT)
{
if (selectingDifficulty)
{
if (botDifficulty > 0)
{
botDifficulty--;
}
else
{
botDifficulty = 2;
}
}
else if (gameStatus == 0 && scoreLimit > 1)
{
scoreLimit--;
}
}
else if (id == KeyEvent.VK_ESCAPE && (gameStatus == 2 || gameStatus == 3))
{
gameStatus = 0;
}
else if (id == KeyEvent.VK_SHIFT && gameStatus == 0)
{
bot = true;
selectingDifficulty = true;
}
else if (id == KeyEvent.VK_SPACE)
{
if (gameStatus == 0 || gameStatus == 3)
{
if (!selectingDifficulty)
{
bot = false;
}
else
{
selectingDifficulty = false;
}
start();
}
else if (gameStatus == 1)
{
gameStatus = 2;
}
else if (gameStatus == 2)
{
gameStatus = 1;
}
}
}
@Override
public void keyReleased(KeyEvent e)
{
int id = e.getKeyCode();
if (id == KeyEvent.VK_W)
{
w = false;
}
else if (id == KeyEvent.VK_S)
{
s = false;
}
else if (id == KeyEvent.VK_UP)
{
up = false;
}
else if (id == KeyEvent.VK_DOWN)
{
down = false;
}
}
@Override
public void keyTyped(KeyEvent e)
{
}
}
Class Ball
package pong;
import java.awt.Color;
import java.awt.Graphics;
import java.util.Random;
public class Ball
{
public int x, y, width = 25, height = 25;
public int motionX, motionY;
public Random random;
private Pong pong;
public int amountOfHits;
public Ball(Pong pong)
{
this.pong = pong;
this.random = new Random();
spawn();
}
public void update(Paddle paddle1, Paddle paddle2)
{
int speed = 5;
this.x += motionX * speed;
this.y += motionY * speed;
if (this.y + height - motionY > pong.height || this.y + motionY < 0)
{
if (this.motionY < 0)
{
this.y = 0;
this.motionY = random.nextInt(4);
if (motionY == 0)
{
motionY = 1;
}
}
else
{
this.motionY = -random.nextInt(4);
this.y = pong.height - height;
if (motionY == 0)
{
motionY = -1;
}
}
}
if (checkCollision(paddle1) == 1)
{
this.motionX = 1 + (amountOfHits / 5);
this.motionY = -2 + random.nextInt(4);
if (motionY == 0)
{
motionY = 1;
}
amountOfHits++;
}
else if (checkCollision(paddle2) == 1)
{
this.motionX = -1 - (amountOfHits / 5);
this.motionY = -2 + random.nextInt(4);
if (motionY == 0)
{
motionY = 1;
}
amountOfHits++;
}
if (checkCollision(paddle1) == 2)
{
paddle2.score++;
spawn();
}
else if (checkCollision(paddle2) == 2)
{
paddle1.score++;
spawn();
}
}
public void spawn()
{
this.amountOfHits = 0;
this.x = pong.width / 2 - this.width / 2;
this.y = pong.height / 2 - this.height / 2;
this.motionY = -2 + random.nextInt(4);
if (motionY == 0)
{
motionY = 1;
}
if (random.nextBoolean())
{
motionX = 1;
}
else
{
motionX = -1;
}
}
public int checkCollision(Paddle paddle)
{
if (this.x < paddle.x + paddle.width && this.x + width > paddle.x && this.y < paddle.y + paddle.height && this.y + height > paddle.y)
{
return 1; //bounce
}
else if ((paddle.x > x && paddle.paddleNumber == 1) || (paddle.x < x - width && paddle.paddleNumber == 2))
{
return 2; //score
}
return 0; //nothing
}
public void render(Graphics g)
{
g.setColor(Color.WHITE);
g.fillOval(x, y, width, height);
}
}
Class Paddle
package pong;
import java.awt.Color;
import java.awt.Graphics;
public class Paddle
{
public int paddleNumber;
public int x, y, width = 50, height = 250;
public int score;
public Paddle(Pong pong, int paddleNumber)
{
this.paddleNumber = paddleNumber;
if (paddleNumber == 1)
{
this.x = 0;
}
if (paddleNumber == 2)
{
this.x = pong.width - width;
}
this.y = pong.height / 2 - this.height / 2;
}
public void render(Graphics g)
{
g.setColor(Color.WHITE);
g.fillRect(x, y, width, height);
}
public void move(boolean up)
{
int speed = 15;
if (up)
{
if (y - speed > 0)
{
y -= speed;
}
else
{
y = 0;
}
}
else
{
if (y + height + speed < Pong.pong.height)
{
y += speed;
}
else
{
y = Pong.pong.height - height;
}
}
}
}
Class Renderer
package pong;
import java.awt.Graphics;
import java.awt.Graphics2D;
import javax.swing.JPanel;
public class Renderer extends JPanel
{
private static final long serialVersionUID = 1L;
@Override
protected void paintComponent(Graphics g)
{
super.paintComponent(g);
Pong.pong.render((Graphics2D) g);
}
}
Berikut kita akan menjalankan game Pong, maka akan mucul tampilan seperti ini
Pada game ini kita dapat memainkan dengan 2 mode, yaitu bermain dengan 2 player dan bermain dengan Bot. Score Limit berfungsi untuk menentukan berapa jumlah score yang dibutuhkan untuk memenangkan permainan.
Jika bermain dengan mode Bot kita dapat memilih tingkat kesulitan bermain.
Jika bermain dengan mode 2 player. Player 1 menggunakan tombol keyboard S dan W untuk bergerak sedangkan Player 2 menggunakan tombol Up dan Down.
-- Terima Kasih --
Tidak ada komentar:
Posting Komentar