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- เผยแพร่เมื่อ 17 ก.ค. 2020
- 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. - วิทยาศาสตร์และเทคโนโลยี
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//***********************************
***************************
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
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!
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 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 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
Loved the tutorial supper easy to fallow and works perfectly.
Thank you keep up I'm a fan.
This video is amazing! Easy to understand and follow along!
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.
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
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.
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
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.
One hour worth so much,confidence builder 👌👌👌. 💯❤️
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.
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!
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!
Thank you for all you're doing. BRO CODE FOR LIFE!!!!
Wow, thank you so much bro for the video. I coded along and created my own version. Keep them coming!
Hi, just a new bro love how you posted all of these in-depth parts of python and explaining so well.
Haven't watched the video yet, but I'm sure it's going to be great! Thank you and keep up the good work!
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
Thanks for sharing
Thank you for taking the time to do this
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 :) !
Thanks a lot, do even more projects like this and share with us. 😁😅
Thanks bro, your tutorials are awesome!
Absolutely wonderful! I can experiment with this from here.
That one was difficult but also fun. And I actually like playing it :P Thank you!
You are... amazing!!
This video made my day!!!! Thank you btw
I liked this video a lot. Easy Understanding:)
You are just awesome Bro...Thenx a Ton
That was cool. I just wish you had played a longer game of pong
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
I don't understand the code in run()method.what are ns, delta,etc and what they are doing?
Dear Bro, thanks!
Is it true that in GamePanel class checkCollision() method if we multiply ball.xVelocity by -1 for both cases the program runs faster? :D 53:02
Also then you don't need to add the negative for paddle2 so it's simpler
ball.setXDirection(ball.xVelocity); at 55:42
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
Thank you for the video, I bet I will be able to do better thanks to your programm)
I loved this video really learnt a lot from this tutorial
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?
You made my day
Thanks so much for your time and Work
So inspired by your channel content
Keep Rocking
Love from India
Love your videos. I wish I can meet you one day Legend. You are a great man.
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?
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...
I think your channel will boom soon
Absulotely right! 1 mil soon!
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?
Thanks for the video bro!!!
I dont have any words to explain how I glad I am .
God bless you 🙇
Great video! Commenting to help the algorithm.
Just a small suggestion, do write @Override on the methods which you override, it will become much easier to comprehend stuff for beginners
Hi, so when you create a class it brings up a screen that gives a few options to configure or customize the class to your specifications. But I'm using version JDK 18 so it only brings up a drop down menu with very little options to configure or customize it. How do I change it to give me the pop up screen to adjusting settings for the class.
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?
1:06:18 That background music tho. xd
Btw I never watched this awesome Java videos so far.
Thank you!
Thanks my bro hope your family healthy and happy
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
I am doing as explained in the keypressed paddle's part and for up and down keys its not working
Thank you for making such great tutorials!
I had one question, I'm unsure it's lag from my computer or the capacity of the script but when both paddles are pressed at the same time one will get stuck. Is there a way to allow both players to move their paddles at the same time smoothly?
You may have missed at 40:08 where Bro corrects himself and establishes the "move()" into the paddles. This allows the paddles to move smoothley. I was having the same issue you were having, but once I got to this point and used paddle1.move(); and paddle2.move(); it made the movement much better, and allowed movement of both paddles at the same time. Hopefully this helped.
I have a question please ! How i can practice JAVA , and how did you practice it ?
Thank you so much for your effort
that's explain a lot ! :D for me - begginer ;) i am trying to add to game some "menu bar" any tips? for now if or menu works or game ;D not togheter
At 22:40 you could have just change (5/9) to (5.0/9.0) and it works just fine.
Really nice video, thank you !
hey bro, i need help, can you give me the code on how to put a score limit to declare the winner
Thank you so much bro❤
All finished and my paddle 🏓 does not move bro.Tell me someone how to check and configure paddle not move problem.
How to get that output screen of the pingpong game because i didn't get that screen.... any settings is there ?? Only I get the console with the score
Thank you so much😊
From Bangladesh ❤
why we set the the gameFrame background to black but not the JPanel , and how does the JPanel changes to black color ?
AMAZING , THANK YOU!
thanks for watching orenn
It's doubt : Is it possible to set key listener for both paddles simultaneously like w,a for first paddle and up,down key for second paddle?
Thanks for sharing this video
Can you say the installation of eclipse , by running the code it is showing like error occurred during the installation of boot layer
is there anyway that i can make the ball blink after it touches the left and right boundaries
bro! you are just outstanding!!!
And this can be easily tricked if you place paddles in direction of last bounce... any solutions with randoming direction?
I've similar project to do but ball has to obey gravity rules but i could not implement this according to time. Such as 1/2gt^2 rule. How can i rule the t here. Please help :)
thanks a lot man apreciate it :))
thanks dude ❤ you are amazing (best subscribe for u)
plz @Bro Code how can i controlle the paddle1 or 2 from the keyboard
Great video. Thank you very much . I would like to create an AI player from this code. How can I implement it? Thank you
I love this channel so much
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.
Loved this video Bro!
Great video, as always! :D
You are great bro, thx!
Hey this video is great can you please put a copy of this code down below please
man u r the best thnk u soo much ❤
Thx, Bro!
Thank u so much 😊
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 💖❤️
Iam not able to move that paddles
What might be the problem
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
Bro please don't stop making videos
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?
@@user-uq6ss2lz8t ,@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
Thank You So Much Sir 🙏
This guy is just a hope🥰
mine is giving me erros after following every step. am using eclipse 2022-03. does that affect
I can’t get past the first few steps because I keep getting an error message saying “Java.Awt is not accessible” I can’t import any packages. Can you please help me fix this? I’m really trying to learn how to code it is my DREAM to work as a software coder and I can’t learn if I don’t know how to fix an error. Please help
this is very nice most of it works but the KeyAdapter doesnt work, i make sure i spelled it right and everything it says "KeyAdapter cannot be resolved to a type". any solutions?