C++ Tutorial 21 - Simple Pong Game (Part 3)

[@reziik6904]

Love your tutorials! It would be really cool if you continued the series in something like unreal engine and continue making simple games but with basic graphics so we have better idea of how to go about making a real game :) Thanks!

[@DogeCharger]

Thanks for this tutorial! By the way, if anyone wants to get rid of the flickering, the main cause of it is using the "cls" command in draw. It's pretty tedious this way since it forces the screen blank and causes significant I/O delay. Using this solution eliminates the flickering almost entirely! void clearScreen() // Use Direct implementation of "cls" to clear screen without flickering! { HANDLE hOut; COORD Position; hOut = GetStdHandle(STD_OUTPUT_HANDLE); Position.X = 0; Position.Y = 0; SetConsoleCursorPosition(hOut, Position); }

[@cheekybiscuit5742]

where do i place this code in the script, thanks ?

[@tomewa2451]

Yes. Where do I place it?

[@CoolDude60874]

Thank you again! You are like teacher,that helps alot when you show how that works :) Keep it up!

[@doron910]

Yo Thank you!!! I'm a beginner Why should you have the player and the ball objects as dynamic "heap" memory" actually? An explantion would be really interesting.

[@qwerty11111122]

Ah, thank you so much! It's nice to to see a pong game tutorial online where I can learn the graphics separately from the OOP.

[@RainbowSheep_was_taken]

charmap was the best thing that I've ever learned before thank you very much

[@yifei_yin]

I like the way you making video, it is extremely helpful! Looking forward your next video!

[@АндрейКороховой-т4о]

Thank you very much for the lesson, I was glad to learn something new, because programming in Ukraine is poorly taught. And the term paper somehow needs to be done))) Thanks again, good luck in life and further steps ...

[@robmarvinzcajayon2639]

tried to run the program but there's an error - "cGameManger has no member named draw"

[@ratchetclan3]

Why did the ball go straight at 25:25 instead of reflecting at an angle?

[@NVitanovic]

+Ryan Conway (Surreali) Because the bounce direction is randomly chosen. The logic for the bouncing should be more complicated, but I've tried to simplify it more in order for the game to be simple enough and to fit the tutorial in 3 videos.

[@yogihendrawan3991]

Thank you again :) I really really enjoy it to make and play the game

[@style_13]

how do u slow the ball speed? also stop the flickering? :))

[@Outreal1]

Great tutorial on C++ pong! FYI looks like your source code link has been hijacked by spammers, it keeps redirecting me to dodgy sites. Can you paste the code on here?

[@eslamabdelnaeem8047]

I have just ended my c++ and oop course , should I start to creat a game like this as a training course. Or should I learn some thing else?

[@jctagaming9774]

hey thanks allot i rilly liked the videos it helped allot rilly but is there any way to stop the flickering on the game it wold rilly help me thanks..

[@aakashshah1822]

did you get any solution?

[@jctagaming9774]

@@aakashshah1822 no 😓

[@bilbobaggins7858]

Is there a way to clear the console screen without causing the flicker?

[@lunapictures7989]

Yeah, there are even simpler methods using just iostream and windows.h (if you still need it I can record a fast tutorial)

[@Stek40Channel]

It would be awesome id you do it :D

[@lunapictures7989]

Aaaand I did it. Just rendering, uploading and it will be on my channel. And I'm really sorry that it's not the best tutorial but I have really no expirience in doing them. But I think that everything important is there.

[@heheminroev]

it is a really great tutorial just wanted to ask about the flicker aswell. can see you would upload a fix but can't see it yet;(

[@lunapictures7989]

Brian madsen For my tutorial I've sent a working code. So after adding this to your project it should work. The only thing I could maybe add to make it even better is making the cursor not visible. I'll do an update if a have a time. ;) Have a nice day

[@manriqueiriarte8268]

what if you don't have access to conio,.h and can't use _kbhit ?

[@ItsMyWorld2]

'_kbhit()' lies in 'conio.h'. If you do not insert 'conio.h' '_kbhit()' will not work.

[@citizendot1800]

Use ncurses library

[@shedexqwerasd1299]

Nice tutorial, well done! But there is one thing i didnt understand, why do u use pointers on the ball and the players ?

[@NVitanovic]

+Shedex QWERASD So I can initialize them when the constructor of the GameManager class is called, and also in order for us to be able to use the ScoreUp function. It could have been done without them, but practice is always good, this is a 21st tutorial so I use some concepts that you have learned before in order for you to practice.

[@shedexqwerasd1299]

+NVitanovic okay, thank you :D

[@sasa-dc1gb]

conio.h doesn't support my compiler :(( any suggestions for the alternative?

[@gjciener5360]

In the input function in the game manager it says that _kbhit() and _getch() are undeclared identifiers. how do I solve this?

[@oleksandrsavchenko1961]

Hi, NVitanovic! Thanks for your tutorials. I use Visual Studio 2012. And in line 80 when I try to type "cPaddle(int posX, int posY) : cPaddle()" Visual Studio show me an Error:"cPaddle" is not a nonstatic data member or base class of class "cPaddle". Do you not what it could be?

[@oleksandrsavchenko1961]

When I set comment before : cPaddle(). Error go away And my left paddle doesn't move. But when I hit keys 'i' or 'k' ball start running.

[@johnniefujita]

less verbose (player1x == j && (player1y == i || player1y + 1 == i || player1y + 2 == i || player1y + 3 == i)? or do you preffer the full conditional else if sequence? i think this way gives the beginner a more spacial feeling of the window

[@ItsMyWorld2]

sir can u tell me how to stop blinking the program🥺🥺

[@aakashshah1822]

i have same problem did you get any solution?

[@ItsMyWorld2]

@@aakashshah1822 no

[@JoeExpress]

Super!!!Great job!!!I like your tutorials NVitanovic!Continue!!Like like like

[@vectordhruv8908]

Really amazing 🔥🔥

[@cpt_badass5223]

hi i love your tutorials i have just one question how do i stop the game from flashing as the walls the ball and the paddles keep flashing how do i stop this so that they don't flash anymore

[@shinab2377]

If you draw the walls in the main function , it should stop blinking. But the paddles would be blinking.

[@ssss-ph6zl]

i need the source code it does not open fro the discription

[@billc119]

charmap!! I didn't know that, and it makes the game much nicer

[@jimchan2114]

Amazing! Just Simple and fun!

[@vlads-succes3845]

Hi, first of all i want to dowload c++. Can you do this in your next tutorial? I really need this NVitanovic. YOU DO A GOOD JOB HERE!!! Hope you'll do that👍🏼👍🏼👊🏼

[@tokugeeky2931]

Thank you, this is so helpful

[@exitplanetduster]

That is an impressive result for a text based game. Is there a way to avoid that flickering?

[@alexanderweber5635]

También estoy buscando solución a eso. Por lo que tengo entendido, debo darle un tamaño fijo a la pantalla para poder sobreescribir el texto en lugar de borrarlo y volverlo a escribir.

[@elvinosas]

Are you going to make opengl with c++ tutorials in the future?

[@rubyPWNS1]

I really liked your style of teaching C++. It's was very simple but still well enough. I wish you continued, or maybe did the same for Java.

[@SCARRIOR]

Java is inferior to C++

[@booomlegshot]

on the For loop that draws the ball, player1 and player2 my cout

[@booomlegshot]

lol never mind i missed a == only had =

[@thePadlockesTech]

This was good. But, how do you determine a way to change the direction into something other than random when it hits the paddles? The original Pong uses physics (basically) so if the ball is coming upright and the paddle hits it from a certain angle it responds by going upleft instead of a random direction.

[@atlantic_love]

It's all about the angles.

[@brattergaming9276]

I get an error that says "player1 : undeclared identifier" and same with player2

[@LetsMineSomeBlocks]

is there a way to make this into a program so it is on your desktop and you can click it to open it?

[@ttqgrowtopia7897]

if you didn't get the answer, when you compile it, it creates the .exe file( the program) that you can open and the program will run, did it help?

[@עמיתעמר-מ1ל]

love ur vids keep the hard work

[@JohnSmith-kw4xu]

Also, why did you set the variables ballx, bally, player1x, etc. if you could just use the values directly? e.g. ball->getX instead of ballx.

[@atlantic_love]

Because he didn't know how to design classes.

[@dragospredi8664]

@NVitanovic Very nice tutorials. If you could continue and maybe make such simple games with OpenGL or SDL libraries so it would be an actual game it would be great, and I believe that many people that watch your tutorials agree :)

[@hananeikh]

i agree 100%

[@Fixy15]

Source code is not working for me :/

[@emilovici8688]

How can I make the pads move simultaneously?( I mean, when I press two keys at once: 1 for first's player pad and the other pad for player 2)

[@NVitanovic]

It's not possible in this kind of implementation to do so. This is done in the console so the console accepts one key at a time. You can use though a library that will allow you to do similar things. Start with SFML it's a library for 2D games and it contains advanced input.

[@El_kammex]

Why we don't need a sleep() function in this game and its work perfect?

[@robigo9912]

Hi there! Could you pls explain how to implement that sleep function into the code? The game flickers very much and it's not really playable. Thx in advance!

[@Reaper7mk]

just put sleep(50) in the main loop at the end of each iteration. So it would look like: while(!Quit) { Draw(); Input(); Logic(); Sleep(50); }

[@aakashshah1822]

@@Reaper7mk it just slowdown ball and frame can you please provide any proper solution? thanks in advance

[@danield4n13l]

lol made this, and if the direction is upleft when colliding with top, it does nothing... same when downleft when colliding with bottom can you guyz help me?

[@PhasePD]

dude i have looked thru the playlist with your c++ tutorials, you dont have pipes, why?

[@SkiNNyPoNNy]

whats pipes

[@Entropy3ko]

Great stuff! Upload more! :)

[@michaelcastillo884]

when i put #include and compiled it it said that there was no such file or directory- any solution ?

[@usamamuzaffar9174]

in dev c++?

[@arunmohanc6031]

I have also that kind of problem and what did you did

[@Zly_u]

Can I make this game not in console? I want to make game like this but with graphics. Can I do it in VS?

[@NVitanovic]

+Zlyudchik Yes you can, and if you want share the code with the others.

[@Zly_u]

ok thanks!

[@omgfmaftw]

+Zlyudchik hey dude did you manage to make one? if so how did you build a GUI for it?

[@Zly_u]

+fmaftw no, not yet, I not active learning C :/

[@mattiafontana2264]

+Zlyudchik , you can do that whit C/C++ and OpenGL libraries. If that is too hard, i advice to use the SFML lib.

[@yusufharuna6290]

Thanks you very much for this vedio series.

[@trungnguyennhat7152]

Cam on Ban rat nhieu! I'm come from Viet Nam!

[@sameershah6174]

What should i do to stop blinking in the game

[@sameershah6174]

@NVitanovic

[@Anwari70]

Source code isnt opening?

[@corbax2189]

i love your videos and great tutorial like all others. i just wanted to say that i noticed a small bug. when the ball touches right paddle it can disappear and i need to restart the game. can you or someone else explain why is that happening. all and all great video

[@thePadlockesTech]

The ball disappears after it touches the right paddle? There's a chance the code might be slightly off in the logic function.

[@herooyyy]

My console close right after I run it. How do I fix that?

[@thegodofmusic2904]

+DroonDZN You probably still have the return 0; statement at the top of the main function like this: int main () { return 0; // Other random code. } Simply place the statement at the bottom of the function or comment it out and the console should run fine.

[@abdelrhmanelsaid4589]

AWESOME Thank alot bro :) Guys console screen so hard to make games :) need high logic ^^

[@siddhantbhardwaj2649]

Bro, Where do i add the sleep function if i dont want my game to flicker?

[@tylerhoyt9950]

RIght after Logic in the run function

[@coffeecatrailway]

only one player can move at a time. How can I fix it?

[@tylerhoyt9950]

How do i use sleep to not make my screen flicker

[@NVitanovic]

If you set the sleep value too high it will flicker less but the input won't be that responsive. It all goes down to guessing the value for your PC.

[@JohnSmith-kw4xu]

WriteConsoleOutput() will remove the blinking and improve rendering times.

[@hendrik2765]

can you pls say where i am a c++ noob ;D

[@lilqueen279]

HELLO THERE.WHAT IS THE OBJECTIVE OF THIS GAME? AND THE MINOR OBJECTIVE. THANKYOU

[@randominternetuser5123]

i know this comment is 2 years old, but seriously? you dont know pong? smh -_-

[@judewoolls6272]

Please help my two paddles are both on the same side anyone got suggestions

[@cyndymyndy8516]

your tutorial is awesome but could you plzzz tell why does the screen blinks at last and how to fix it

[@VirTuneCS]

It's because System("cls") clears the screen then you are redrawing it again, causing the blinking

[@cyndymyndy8516]

but how to fix it???

[@SebastianClarence]

do I use empty project

[@mohamedsalah7286]

how can i stop this blink

[@lecomp]

I am doing this code on my Ubuntu. At the end of this video, I had problems during the compilation as described below: undefined reference to 'initscr' undefined reference to 'stdscr' undefined reference to 'wgetch' Here is the part of the code error: if (initscr()) { char current = getch(); if (current == up1) if (player1y > 0) player1->moveUp(); if (current == up2) if (player2y > 0) player2->moveUp(); if (current == down1) if (player1y + 4 < height) player1-> moveDown(); if (current == down2) if (player2y + 4 < height) player2-> moveDown(); if (ball->getDirection() == STOP) ball->randomDirection(); if (current == 'q') quit = true; } Here are the libraries: #include #include #include #include #include

[@jjeon9850]

Where is the value of player2x inputted?

[@SebastianClarence]

mine said rand is not declared in this scope

[@m.o.s6275]

my code block say same thing but i include stdio.h and stdlib.h and it work for me i have no idea how i fix it, but it work and now i try to fix c.???

[@ballacknugraha7236]

absolutally asik this game browh :D:D:D, thank you sir, terimakasih

[@varusmaster]

you are the best

[@hoangminhnguyen2840]

thank you

[@creative1978]

Great job!!!!!!

[@MrEmpirz]

thank you bro

[@Nick-jb4xi]

If I play long enough, eventually my ball refuses to leave the center. I can still move the paddles though. Has anyone else had this problem?

[@atlantic_love]

I haven't looked at all of his code in the videos for this game, but I'm thinking he generated direction of the ball from the center using a random number. There is an algorithm I found late last night to help me solve the exercise I'm working out of a Stroustrup's C++ book. Before I found that algorithm on Stack Exchange I was loosely getting a random number (using rand() ) in the range I was looking for, but for whatever reason I started getting random numbers outside the range I was looking for. Here is the algorithm I found that keeps random numbers within desired range using rand(). int getRandomInt(int max, int min = 1) { return (rand() % (max + 1 - min)) + min; }

[@hoangminhnguyen2840]

can you give me code

[@cassu6]

for some reason my paddles dissappear after the first "goal"

[@FaizanIzen]

Thanks a lot brother

[@voxcake]

Thanks you very much! :D

[@ilias-achahbar]

So why does the game actually flicker?

[@aakashshah1822]

did you get any solution?

[@BTechPrasad]

thanks a lot

[@lazizjonnasriev6123]

Why we need time.h header in this program

[@ЛилиСтефанова-д6х]

To call the srand function

[@lijack456]

please design a new tutorial~ its really helpful,thanks you

[@nikiforovpteacher]

This code does not compile in VS2019. 10 mistakes.

[@asadelahi9688]

+NVitanovic plz upload the video how to make chess game plz +NVitanovic

[@Nick-jb4xi]

lol, that would be like 10 videos probably

[@arduino1871]

7:19

[@naveenkr.904]

game is blinking a lot

[@abdelrhmanahmed1378]

you can also just put if (x == width-3) , think about it and thank me later

[@asadelahi9688]

sir plz upload the videos how to make chees game thanks

[@negativaura]

wow programming is hard and i thought this was simple games to make and u wrote about 300 lines of coding wow.

[@atlantic_love]

In a couple of places early on, he had a lot of redundancy, and unnecessary methods. No way PONG should require anywhere near 300 lines of code.

[@louisymalay3053]

Cool....

[@BossManTee]

how about using a fucking GUI ?!!

[@spyrex3988]

This was so cool thank you so fukin much bro

[@neildevera9868]

Dendi

[@logicprogrammingformulatio9592]

someone have a seizure while playing this game!

[@pjak1minecraft]

Yeah, my eyes are dying.

[@kucharekcoto8310]

System("cls") System("cls") System("cls") System("cls") System("cls") System("cls")

[@NovakiSalem]

if you comment this line out you'll be in for a chuckle

[@luongmaihunggia]

How do I slow down the ball's speed?

[@rachithkanchanabandarawickrama]

Thank you

[@murad3460]

System("cls") System("cls") System("cls") System("cls") System("cls") System("cls")