Java pong game 🏓
ฝัง
- เผยแพร่เมื่อ 10 ก.พ. 2025
- Java pong game tutorial for beginners
#Java #pong #game
Coding boot camps hate him! See how he can teach you to code with this one simple trick...
Bro Code is the self-proclaimed #1 tutorial series on coding in various programming languages and other how-to videos in the known universe.
//***********************************
***************************
public class PongGame {
public static void main(String[] args) {
GameFrame frame = new GameFrame();
}
}
//***********************************
import java.awt.*;
import javax.swing.*;
public class GameFrame extends JFrame{
GamePanel panel;
GameFrame(){
panel = new GamePanel();
this.add(panel);
this.setTitle("Pong Game");
this.setResizable(false);
this.setBackground(Color.black);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.pack();
this.setVisible(true);
this.setLocationRelativeTo(null);
}
}
//***********************************
***************************
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import javax.swing.*;
public class GamePanel extends JPanel implements Runnable{
static final int GAME_WIDTH = 1000;
static final int GAME_HEIGHT = (int)(GAME_WIDTH * (0.5555));
static final Dimension SCREEN_SIZE = new Dimension(GAME_WIDTH,GAME_HEIGHT);
static final int BALL_DIAMETER = 20;
static final int PADDLE_WIDTH = 25;
static final int PADDLE_HEIGHT = 100;
Thread gameThread;
Image image;
Graphics graphics;
Random random;
Paddle paddle1;
Paddle paddle2;
Ball ball;
Score score;
GamePanel(){
newPaddles();
newBall();
score = new Score(GAME_WIDTH,GAME_HEIGHT);
this.setFocusable(true);
this.addKeyListener(new AL());
this.setPreferredSize(SCREEN_SIZE);
gameThread = new Thread(this);
gameThread.start();
}
public void newBall() {
random = new Random();
ball = new Ball((GAME_WIDTH/2)-(BALL_DIAMETER/2),random.nextInt(GAME_HEIGHT-BALL_DIAMETER),BALL_DIAMETER,BALL_DIAMETER);
}
public void newPaddles() {
paddle1 = new Paddle(0,(GAME_HEIGHT/2)-(PADDLE_HEIGHT/2),PADDLE_WIDTH,PADDLE_HEIGHT,1);
paddle2 = new Paddle(GAME_WIDTH-PADDLE_WIDTH,(GAME_HEIGHT/2)-(PADDLE_HEIGHT/2),PADDLE_WIDTH,PADDLE_HEIGHT,2);
}
public void paint(Graphics g) {
image = createImage(getWidth(),getHeight());
graphics = image.getGraphics();
draw(graphics);
g.drawImage(image,0,0,this);
}
public void draw(Graphics g) {
paddle1.draw(g);
paddle2.draw(g);
ball.draw(g);
score.draw(g);
Toolkit.getDefaultToolkit().sync(); // I forgot to add this line of code in the video, it helps with the animation
}
public void move() {
paddle1.move();
paddle2.move();
ball.move();
}
public void checkCollision() {
//bounce ball off top & bottom window edges
if(ball.y = GAME_HEIGHT-BALL_DIAMETER) {
ball.setYDirection(-ball.yVelocity);
}
//bounce ball off paddles
if(ball.intersects(paddle1)) {
ball.xVelocity = Math.abs(ball.xVelocity);
ball.xVelocity++; //optional for more difficulty
if(ball.yVelocity>0)
ball.yVelocity++; //optional for more difficulty
else
ball.yVelocity--;
ball.setXDirection(ball.xVelocity);
ball.setYDirection(ball.yVelocity);
}
if(ball.intersects(paddle2)) {
ball.xVelocity = Math.abs(ball.xVelocity);
ball.xVelocity++; //optional for more difficulty
if(ball.yVelocity>0)
ball.yVelocity++; //optional for more difficulty
else
ball.yVelocity--;
ball.setXDirection(-ball.xVelocity);
ball.setYDirection(ball.yVelocity);
}
//stops paddles at window edges
if(paddle1.y= (GAME_HEIGHT-PADDLE_HEIGHT))
paddle1.y = GAME_HEIGHT-PADDLE_HEIGHT;
if(paddle2.y= (GAME_HEIGHT-PADDLE_HEIGHT))
paddle2.y = GAME_HEIGHT-PADDLE_HEIGHT;
//give a player 1 point and creates new paddles & ball
if(ball.x = GAME_WIDTH-BALL_DIAMETER) {
score.player1++;
newPaddles();
newBall();
System.out.println("Player 1: "+score.player1);
}
}
public void run() {
//game loop
long lastTime = System.nanoTime();
double amountOfTicks =60.0;
double ns = 1000000000 / amountOfTicks;
double delta = 0;
while(true) {
long now = System.nanoTime();
delta += (now -lastTime)/ns;
lastTime = now;
if(delta >=1) {
move();
checkCollision();
repaint();
delta--;
}
}
}
public class AL extends KeyAdapter{
public void keyPressed(KeyEvent e) {
paddle1.keyPressed(e);
paddle2.keyPressed(e);
}
public void keyReleased(KeyEvent e) {
paddle1.keyReleased(e);
paddle2.keyReleased(e);
}
}
}
//***********************************
***************************
import java.awt.*;
import java.awt.event.*;
public class Paddle extends Rectangle{
int id;
int yVelocity;
int speed = 10;
Paddle(int x, int y, int PADDLE_WIDTH, int PADDLE_HEIGHT, int id){
super(x,y,PADDLE_WIDTH,PADDLE_HEIGHT);
this.id=id;
}
public void keyPressed(KeyEvent e) {
switch(id) {
case 1:
if(e.getKeyCode()==KeyEvent.VK_W) {
setYDirection(-speed);
}
if(e.getKeyCode()==KeyEvent.VK_S) {
setYDirection(speed);
}
break;
case 2:
if(e.getKeyCode()==KeyEvent.VK_UP) {
setYDirection(-speed);
}
if(e.getKeyCode()==KeyEvent.VK_DOWN) {
setYDirection(speed);
}
break;
}
}
public void keyReleased(KeyEvent e) {
switch(id) {
case 1:
if(e.getKeyCode()==KeyEvent.VK_W) {
setYDirection(0);
}
if(e.getKeyCode()==KeyEvent.VK_S) {
setYDirection(0);
}
break;
case 2:
if(e.getKeyCode()==KeyEvent.VK_UP) {
setYDirection(0);
}
if(e.getKeyCode()==KeyEvent.VK_DOWN) {
setYDirection(0);
}
break;
}
}
public void setYDirection(int yDirection) {
yVelocity = yDirection;
}
public void move() {
y= y + yVelocity;
}
public void draw(Graphics g) {
if(id==1)
g.setColor(Color.blue);
else
g.setColor(Color.red);
g.fillRect(x, y, width, height);
}
}
//***********************************
***************************
import java.awt.*;
import java.util.*;
public class Ball extends Rectangle{
Random random;
int xVelocity;
int yVelocity;
int initialSpeed = 2;
Ball(int x, int y, int width, int height){
super(x,y,width,height);
random = new Random();
int randomXDirection = random.nextInt(2);
if(randomXDirection == 0)
randomXDirection--;
setXDirection(randomXDirection*initialSpeed);
int randomYDirection = random.nextInt(2);
if(randomYDirection == 0)
randomYDirection--;
setYDirection(randomYDirection*initialSpeed);
}
public void setXDirection(int randomXDirection) {
xVelocity = randomXDirection;
}
public void setYDirection(int randomYDirection) {
yVelocity = randomYDirection;
}
public void move() {
x += xVelocity;
y += yVelocity;
}
public void draw(Graphics g) {
g.setColor(Color.white);
g.fillOval(x, y, height, width);
}
}
//***********************************
***************************
import java.awt.*;
public class Score extends Rectangle{
static int GAME_WIDTH;
static int GAME_HEIGHT;
int player1;
int player2;
Score(int GAME_WIDTH, int GAME_HEIGHT){
Score.GAME_WIDTH = GAME_WIDTH;
Score.GAME_HEIGHT = GAME_HEIGHT;
}
public void draw(Graphics g) {
g.setColor(Color.white);
g.setFont(new Font("Consolas",Font.PLAIN,60));
g.drawLine(GAME_WIDTH/2, 0, GAME_WIDTH/2, GAME_HEIGHT);
g.drawString(String.valueOf(player1/10)+String.valueOf(player1%10), (GAME_WIDTH/2)-85, 50);
g.drawString(String.valueOf(player2/10)+String.valueOf(player2%10), (GAME_WIDTH/2)+20, 50);
}
}
//***********************************
***************************
bro, you don't really have to publish the source code, all we need is the idea and you are explaining it already. btw thanks for the video. god bless you
@@ItamiPlaysGuitar I really like having the source code; it's especially helpful for debugging, to see simple errors where I misspelled something.
Also, if I wanted to merely find out how he made the ball move at an angle, I could quickly scan the Ball class, which is super nice
i think you people deserve being paid a lot. this job could shorten lifetime.
@@elvastaudinger4991 how could coding shorten lifetime?
i followed everything but my paddles are not moving :((( great video tho!!! 💛
This channel is SOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO underrated
Dak ghax qisek zobbi
Yeeeeeeeeeeeeeeesssssssssssssssss
while 0=0:
print("You are right")
True
Who's the fuck said that this channel underrated?
Finally finished all 100 videos. Thank you for making this, it really helped me understand some of the slightly more advanced concepts. I'll be returning to the vids whenever I'm stuck!
I think your channel will boom soon
Absulotely right! 1 mil soon!
Thank you for your video , just 1 hour but I spent very much time to understand apparently what you did in your code, especially in game loop , workflow of a basic game. I think my java skill is better than I before. Have a great day ,hope you will release many wonderful video in the future.
I saw this video at the beginning of learning Java and with this video I was able to create an interesting and simple game, and it had an important impact on my programming way, I owe you and thank you so much
followed the whole way through and I found it very fun! The best part is being able to dissect the code after and understanding every bit in detail. Thank you for the video!
excuse me meri game ka interface hi nhi show ho rha hy same follow kia hy vedio ko can you guide me kya problem hy?
or 1 error hy class panel py
I appreciate you taking the time to explain everything you are doing and why. It really helps me learn instead of me just following along to get a working game.
i love this channel, whith so many overwhelming information you can focus the essential things without wasting time on futile things. And this is a great and important skill today. After a month of your videos, i can easly write core java code and write a project from scratch. Thanks dude, love you
1:02:07
optional details, instead of just drawing a straight line you can use 2d graphics for a dotted or dashed line
as an example, I put:
public void draw(Graphics g) {
Graphics2D g2d = (Graphics2D) g;
g.setColor(Color.white);
g.setFont(new Font("Consolas",Font.PLAIN,60));
Stroke dashed = new BasicStroke(4, BasicStroke.CAP_BUTT, BasicStroke.JOIN_BEVEL, 0, new float[]{25}, 30);
g2d.setStroke(dashed);
g2d.drawLine(GAME_WIDTH/2, 0, GAME_WIDTH/2, GAME_HEIGHT);
g.drawString(String.valueOf(player1/10)+String.valueOf(player1%10), (GAME_WIDTH/2)-85, 50);
g.drawString(String.valueOf(player2/10)+String.valueOf(player2%10), (GAME_WIDTH/2)+20, 50);
}
you helped me get into coding mate thanks a million!
Well, I have watched all Java programing language videos in a list (if I didn't miss a single video). Thanks bro, your contents are so high quality and there's no other programing language tutorial youtubers currently known that very underated like this. Your charisma gives me spirit to learn.
I don't have expectation very much to be expert developer yet, because reality is unknown. Therefore I also want to get developer job but I don't know nothing how it works yet, but I'll figure out how to get the job.
Learn programing languages because I'm curious and solving problem that solved in smart way is very satisfying. So because of this, my life impossible to be bored because there are so much to do, like mediation to fresh a mind, learn new skills, playing video games etc that I overwhelmed and sometimes have no time to do those things.
It's taken a while but I worked through all 100 videos and man it has stepped up my meagre knowledge by leaps and bounds. Thank you for your massive effort in creating all of these - much appreciated. If you're ever in Cape Town please let me take you for a beer! Cheers Bro.
This was a realllly good video! You are underrated man, this helped me a lot in grasping the important concepts of Java, Thanks a ton to you always! You are a great teacher too!
Loved the tutorial supper easy to fallow and works perfectly.
Thank you keep up I'm a fan.
I loved this so much. Can't wait to do more! I haven't done Java in about 8 years or so, since my first year of college/uni. I found Java really difficult as it was my first coding language. (I really love coding now, favourite is Python). This has given me a love for Java and all the wonderful things it can do.
hey! Thank you for this video. I'm learning to code in college and this is very helpful!
At 22:40 you could have just change (5/9) to (5.0/9.0) and it works just fine.
Hi, just a new bro love how you posted all of these in-depth parts of python and explaining so well.
Might be the best tutorial on game basics I have ever seen. AWESOME!!!!
i didnt know how to use it i mean the red and blue rectangles dont move
One hour worth so much,confidence builder 👌👌👌. 💯❤️
Wow, thank you so much bro for the video. I coded along and created my own version. Keep them coming!
So far you explain best game tutorials. You follow some order of creating things that makes it easier to follow. On point. Great for beginners in java after they learn basics and figure out how OOP works. Hope to see more game tutorials.
Haven't watched the video yet, but I'm sure it's going to be great! Thank you and keep up the good work!
This video is amazing! Easy to understand and follow along!
1:06:18 That background music tho. xd
Btw I never watched this awesome Java videos so far.
Thank you!
Brother só quero agradecer por esse tutorial incrível , sou iniciante na programação java já fiz alguns programinha e até jogos , mais não tão complexo como este aqui. Eu quero muito aprender a criar jogos em java quero muito inventar o meu próprio jogo , aliás eu já fiz mais é simples. Obrigado ganhou mias um inscrito e + LIke, valeu
video worth watching, I like it.
with a perfect play of the game at the end.
Thank you for all you're doing. BRO CODE FOR LIFE!!!!
Bro you're on fire, I see all these great videos you've been posting. I got to catch up.
where is the code for game frame?
Loved this video Bro!
This video made my day!!!! Thank you btw
So, I wanted to stop the game when a top score was reached. I am sure that there are better ways to do this, but this works.
In the GamePanel class, I added:
static final int MAX_SCORE = 21;
static boolean gameRun = true;
and I changed: while(true) to while(gameRun)
and then: (I am only including one player's score here)
if(ball.x
if i want to add a pause by pressing space bar how can it be possible
Thank you for taking the time to do this
I liked this video a lot. Easy Understanding:)
Tip: if you're using Eclipse like he is, press ctrl+shift+o after typing (extends BaseClass) to automatically import the base class and get rid of the red underline.
Love your videos. I wish I can meet you one day Legend. You are a great man.
That one was difficult but also fun. And I actually like playing it :P Thank you!
I dont have any words to explain how I glad I am .
God bless you 🙇
Hey this video is great can you please put a copy of this code down below please
Thanks bro, your tutorials are awesome!
You are... amazing!!
I don’t know if you’re gonna read this or anyone is gonna read this, but when I add the move function to make it smoother as you said in the video the paddles just jumped up and down with nothing in between. 😢 I think I’m just gonna make this game without it for now if I don’t get an answer, but thanks for the video. It’s really good.❤
Just a small suggestion, do write @Override on the methods which you override, it will become much easier to comprehend stuff for beginners
I loved this video really learnt a lot from this tutorial
To anyone who is noticing some input delay, I responded to a comment so I figure I'll copy it up here:
_________________________________________________________________________________________________________________
The problem is that key events have a delay between the first time they fire and the second, after which they keep going immediately. Like you know when you type and hold down a key? First you get a W or whatever, then a delay, then suddenly you get Ws coming out super fast.
So what you need to do is, keep booleans to store states for each key. This is easiest using an array where you store a boolean in the index at its keycode. So you make a boolean array called keys, and when W is pushed, you set keys [e.getKeyCode ()] to true. When it's released, you set it to false. So you're only handling the STATE of your keys in the listener, not any of the logic. This separates your movement from the limitations of key events.
Then in the move method for your paddles you want to actually handle movement based on which keys are pressed. So W's keyCode is 87 and S's keyCode is 83. So in your move logic, you're gonna do something like this:
if (keys [87] == true){
y -= yVelocity;
}
And so on.
This happens in pretty much every language and this is the usual fix :) It may sound confusing but it'll make the input smooth as butter.
The main caveat is you have a big array which is mostly empty (I set mine to 100 because I couldn't be bothered to set them manually) but you could also just make booleans for each key
e.g. boolean up = false;
boolean down = false;
boolean w = false;
boolean s = false;
update those in your listener
In keyPressed: if (e.getKeyCode () == VK_UP){ up = true}
In keyReleased: if (e.getKeyCode () == VK_UP){ up = false}
and handle the state in your move function
if (up == true) { yVelocity = -1}
Doing this makes sure that there's no funky stuff with your input, your game logic will no longer be updating with the wonky keyboard event timing.
Great video, as always! :D
Great video! Commenting to help the algorithm.
I love this channel so much
Smart man separating his code 👌 clean and neat 👌
thanks Aditya
It's much easier for me to read and teach when it's separated
In what program, are u writing the code?
@@belahalili2550 eclipse
Thanks for sharing
extremely underrated channel
You made my day
Thanks so much for your time and Work
So inspired by your channel content
Keep Rocking
Love from India
Thanks for the video bro!!!
You helped me so much by your Java Tutorial and you help me just get a better understanding of everything thank you so much for you I’m done
Thanks my bro hope your family healthy and happy
You Are Awesome 👌 Bro
Hey Bro you are a crazy man but you are in our hearts. Thanks for your best teaching. Best teaching cause no mistake anywhere. Thank you...
Bro please don't stop making videos
Thanks, a really good video, but I have a question, sometimes the ball doesn't move in x or at all, how do I fix it?
Bro i really trust you and your codes!! But one thing i don't understand how is uour paddles moving, while mine doesn't! I have checked my code 5 time no error or missing lines😐 why my paddles don't move bro? 😑
I just finished it today, Thank you so much for making this video! Where should I begin to start adding sound effects/music?
Here's the documentation on the javax.sound.sampled package. I currently do not have a video on it:
docs.oracle.com/javase/7/docs/api/javax/sound/sampled/package-summary.html
@@BroCodez can you please make some videos on it.... No other channel does it as crisp as you do....
@@BroCodez Yes, bro please!!!
Adding music buttons and pause buttons.
Really nice video, thank you !
bro! you are just outstanding!!!
Thanks a lot, do even more projects like this and share with us. 😁😅
Hello bro.....u r very interesting for me I learn many things from u..I have a lot of doubt ♥️ but change me ...u r the best may ALLAH bless you ♥️♥️♥️ lot love for you 💖❤️
Great video Bro Code
You are just awesome Bro...Thenx a Ton
great tutorial....the game loop was something that i didn't understand ... where can i learn more about it?
I found this one on StackExchange. I'm not that experienced with game dev so I looked at resources online: gamedev.stackexchange.com/questions/52841/the-most-efficient-and-accurate-game-loop/52843
@@BroCodez Sir please tell me that .. the paddel moves with arrow key or not
You need to understand threads before you can understand game loops in Java. I'll leave that for you to figure out. In regards to game loops, you can either use a timer object that comes with Java, or write you own game loop manually. There are many ways to implement game loops yourself but all of them will need to be executed in a separate Java thread.
Within Java GUI apps, a thread called the "event dispatch thread" is created in the background, which is basically an infinite loop that processes and executes GUI events, mouse events, keyboard events, etc. Since the events are constantly being processed, we use a separate thread for all the game logic, like updating the game state and drawing updated graphics to the screen. Seeing as we are using 2 different threads, we can process user input, update and draw at the same time with minimal delay.
If you go with the timer object approach, the first timer you create will spawn its own thread and will be used for timing when you call the start method on it, but the action event method/handler is executed in the event dispatch thread. So basically, game updates and game rendering takes place in the event dispatch thread, while delay happens in the timer's thread to not slow down or interrupt event processing within the event dispatch thread. (From my understanding)
If your game is doing a lot of processing within its update or draw methods, then it's best to write your own game loop and create your own game thread. Ditch timers altogether. You don't want your process intensive game loop slowing down the event dispatch thread, therefore, slowing down the handling of keyboard and mouse input events.
Thanks bro you saved me!
I don't understand the code in run()method.what are ns, delta,etc and what they are doing?
Iam not able to move that paddles
What might be the problem
AMAZING , THANK YOU!
thanks for watching orenn
All finished and my paddle 🏓 does not move bro.Tell me someone how to check and configure paddle not move problem.
I loved so much this tutorial
Great video!
What do you think about making a mine sweeper game it fits the java practice programs and I really would like to see you making it
That was cool. I just wish you had played a longer game of pong
Thanks for sharing this video
I am doing as explained in the keypressed paddle's part and for up and down keys its not working
First, let me thank you for your awesome videos.
I just have one problem here. Two players cannot move their paddles simultaneously. Is that addressed?
Hello, thank you for this. It was really nice to follow along. I am interested as in why you didn't use the javaFX instead. :)
I haven't made videos on FX yet
@@BroCodez Hahaha, ok... :D I am looking forward to them then!
I did it; I finished the video and completed the program :D
Thank you so much for your effort
Thank you so much😊
From Bangladesh ❤
My paddles are not moving after pressing up and down key 36:17
you are the most awesome bro to ever exist!!!!!!!!!!!!!!!!!!!
hey bro, i need help, can you give me the code on how to put a score limit to declare the winner
Bro .. how can you make the player 1 or player 2 win .... Can u show me the code for that
Actually i was trying to make tennis game by referring your code that's helping me a lottttt.. but please tell me how can i use players in place of padels?
Hey bro ! waiting for your new videos 🌺
Hey ! Thank you very much for this tutorial ! I have an issue with the ball sometimes not moving at all when initializing, it get stuck to the vertical line in the center of the screen, any idea of what the problem could be? Thank you again for all your work :) !
You are great bro, thx!
Awesome
Now to try and replicate with with JavaFX
I'll keep you posted
thanks a lot man apreciate it :))
Excellent video. Is anyone else getting a bug where the ball almost gets stuck on the paddle if you hit it at an angle like with the top of the paddle. The ball vibrates back and forth on the paddle?
This was really useful and thank you for making this. The only issue I've had is that the ball will sometimes not move (or only move straight up and down meaning I need to restart the game) but I'm assuming I've missed something in the code to do with the random directions so i'll go through and compare.
you fixed that?
@@fenixspider5776 same problem, have you found a solution?
@@ПожилаяРЭПтилия-ц5б ,@FenixSpider, @woollyknitteddragon I think I've found a solution. You may have made the same mistake as me. I try to follow the best practices and all the code related to if statements was enclosed in brackets {}. But you shouldn't do this in the Ball class constructor. Only one line of code pertains to if statements - randomYDirection--;
setXDirection(randomXDirection*initialSpeed); and setYDirection(randomYDirection*initialSpeed); must be outside the if statement
it helps me to fix this problem
I think you are a favorite student of your physics teacher .!
Absolutely wonderful! I can experiment with this from here.
Thank you so much bro❤
How did you able to move the paddles before declaring the paddle1.move() ,paddle2.move() in move function
I have a problem where they just teleport to the top or bottom
@@Brandywackyman188 same, does anyone know how to fix that?
@@Brandywackyman188 Same :(
@@Brandywackyman188 same problem, we’re you ever able to figure out the problem?
Bro you are the best