Java 2D Game Development Tutorial: Episode 3 Moving Objects On The Screen

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Click Here To Watch: Java 2D Game Development Tutorial: Episode 2 *Grid Layout*:

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I (Ben) teach you how to program a very basic 2D sidescroller game in Java!
Go watch and support my other channel based on programming!

Leave some love for us here at TheBCBroz studios (Our Bedrooms) by putting a like or a comment!

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This video will show you:
HOW TO play With Java
HOW TO make a Java Program
HOW TO play with Code
HOW TO be a BCBroz Director

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Thanks for this! Gonna try this later! You are really awesome and keep it up :D

KeirNellyer

on 9:56, if i press D, the white square just goes right and continues after the boarder. but when i press a, it just stops, not going anywhere. if i run it again, and press a, nothing happens. it seems like the d button works. plz help!

MrMinecraftStudio

@TheBCBroz

Actually, forget my previous post that is no longer a problem. However, my rectangle spawns in the top-right corner and doesn't move :(

PuffyBugs

also at f.addKeyListener(new KeyAdapter() {
void KeyPressed (KeyEvent e){
== KeyEvent.VK_D){
= true;
-=1;
I get an error at the "f"
the error is- Cannot refer to a non-final variable f inside an inner class defined in a different method
the suggested fix is- Change modifier of "f" to final

YogfanSteve

i just realised, if i put 'character.x += 1;' in line 26 (after 'right = true') and 'character.x -= 1;) in line 30 (after 'left = true') the thing goes right and left, only, slower. is this ok?

MrMinecraftStudio

Mine moves really fast at first... then after I press the key again it starts moving really slow. HELP!

mophydo

Please help, when I get to the end of your tutorial I get this error at "super.paintComponent(g);"
error- The method paintComponent(Graphics) is undefined for the type KeyAdapter

YogfanSteve

Please answer! Everything is fine, but when I press D, it just keeps going out the boarder, and when I press A, it just stops it, then when I let go of A, it keeps moving out. PLEASE HELP :P

TheSuperMaddman

Getting the same problem here, I can move it to the left or right really fast until I press the opposite button, then both buttons, when pressed, make it move slowly. It is very irritating :/

SoloPegasusWing

Hi ben you are great, but i seem to be having problems here. I have watched the video 3 times and checked every character but it still wont give me the white box. I am sure it is something small but what should i do?

nathanmaguire

Starting at time 6:12, I notice from line 36 to line 39 you have 4 curly braces, one parenthesis, and one semi- colon. How does that work? Over all great video.

teejaver

@TheBCBroz

Hello, it doesn't recognise KeyAdapter :(

Any ideas?

PuffyBugs

I had the same error as you. So I looked through the code again and found the problem. You have probably spelled paintComponent with an s.

I know this is a bit late
but I hope it will help you!

TeemoTales

same problem my caracter also have tail?

RemcoRemco

f.addKeyListener gives this error:
"The method addKeyListener(KeyListener) in the type Component is not applicable for the arguments (new KeyAdapter(){})"

MMedic