Posts by mangopearapples

I hope anti-spamming will work really effectively. I'm nearly got killed by the amount of spam PMs I had.

Simple Geometry worked for me :) Thanks!

How can I detect a collision between 2 images? E.G if(Image1 collidesWith Image2){}

Thank you so much! Everything works now. Your English is fine.
Thanks again!

I'm trying to make it so when I press ESC, it RestoreScreen() but it doesn't work. Now I don't know whether it's my method RestoreScreen() or my listeners.
This is my code:

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class main extends JFrame implements MouseListener,KeyListener{
	
		public void keyPressed(KeyEvent e) {
			int rsKey = e.getKeyCode();
			if(rsKey == KeyEvent.VK_ESCAPE || rsKey == 27){
				s.RestoreScreen();
			}
		}

		
		public void keyReleased(KeyEvent e) {
				
		}

		
		public void keyTyped(KeyEvent e) {
			
		}
	public static void main(String[] args) {
		DisplayMode dm = new DisplayMode(800,600,16,DisplayMode.REFRESH_RATE_UNKNOWN);
		main m = new main();
		m.run(dm);
		
	}
	
	private title s;
	private JTextField command;
	private Image bg;
	private Image ball;
	private static int x = 0;
	private static int y = 0;
	private static boolean right = false;
	private static boolean down = false;
	private boolean loaded = false;
	private boolean dojustonce = false;
	Timer moveball = new Timer(50,new ActionListener(){
		public void actionPerformed(ActionEvent e){
			if(right == false){x-=6;}if(right == true){x+=6;}
			if(down == false){y-=6;}if(down == true){y+=6;}
			if(x <= 0){right = true;}if(x >= 750){right = false;}
			if(y <= 0){down = true;}if(y >= 550){down = false;}
			repaint();
		}
	});
	public void DoJustOnce(){
		repaint();
		dojustonce = true;
	}
	public void paint(Graphics g){
		if(!dojustonce){
			g.clearRect(0,0,getWidth(),getHeight());
		}
		if(g instanceof Graphics2D){
			Graphics2D g2 = (Graphics2D)g;
			g2.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
			
		}
		if(loaded){
			g.drawImage(bg,0,0,null);
			g.drawImage(ball,x,y,null);
		}
		g.drawString("Click To Start or Press Esc To Exit",180,500);
		
	}
	public void run(DisplayMode dm){
		setBackground(Color.BLACK);
		setForeground(Color.YELLOW);
		setFont(new Font("Comic Sans MS",Font.PLAIN,24));
		loaded = false;
		loadpics();
		command = new JTextField("Enter your command here. Press ESC to exit or press Enter to start."); …

Right; so if I'm right, s.RestoreScreen() returns a null?
And that means there's something wrong in my title class... But I swear it was working when I used thread.sleep(milliseconds). Do you guys want the code from title.java?

Pressing Esc doesn't do anything even though I have:

public void keyPressed(KeyEvent e) {
				int rsKey = e.getKeyCode();
				if(rsKey == KeyEvent.VK_ESCAPE){
					s.RestoreScreen();
				}
		}

I've added the KeyListener.
Also I get lot's of errors or whatnot in the console box:

Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
	at main.keyPressed(main.java:9)
	at java.awt.Component.processKeyEvent(Unknown Source)
	at java.awt.Component.processEvent(Unknown Source)
	at java.awt.Container.processEvent(Unknown Source)
	at java.awt.Window.processEvent(Unknown Source)
	at java.awt.Component.dispatchEventImpl(Unknown Source)
	at java.awt.Container.dispatchEventImpl(Unknown Source)
	at java.awt.Window.dispatchEventImpl(Unknown Source)
	at java.awt.Component.dispatchEvent(Unknown Source)
	at java.awt.KeyboardFocusManager.redispatchEvent(Unknown Source)
	at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(Unknown Source)
	at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(Unknown Source)
	at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(Unknown Source)
	at java.awt.DefaultKeyboardFocusManager.dispatchEvent(Unknown Source)
	at java.awt.Component.dispatchEventImpl(Unknown Source)
	at java.awt.Container.dispatchEventImpl(Unknown Source)
	at java.awt.Window.dispatchEventImpl(Unknown Source)
	at java.awt.Component.dispatchEvent(Unknown Source)
	at java.awt.EventQueue.dispatchEvent(Unknown Source)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.run(Unknown Source)

I have no idea what's wrong with my KeyPressed method...

I cut and pasted the KeyEvent code (int rsKey = e.getKeyCode();if(rskey ==) ect. to the KeyTyped method and this time, no errors in the console box yet it still doesn't 'RestoreScreen'.

Wow, I hadn't realized there was that much things about listeners...
Do you have to make class focusable? I don't think I've ever made a class focusable, not on purpose anyway and my ActionListener works always.
Anyway, thanks for everything again guys.

Hmm? Looks like i'll have to read a KeyListener tutorial...
I had already implemented the MouseListener so I don't think I can implement another thing.

The MouseListener is there for later.

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class main extends JFrame implements MouseListener{
	class keyl implements KeyListener{

		@Override
		public void keyPressed(KeyEvent e) {
				s.RestoreScreen();
		}

		@Override
		public void keyReleased(KeyEvent e) {
				s.RestoreScreen();
		}

		@Override
		public void keyTyped(KeyEvent e) {
				s.RestoreScreen();
		}
		
	}
	public static void main(String[] args) {
		DisplayMode dm = new DisplayMode(800,600,16,DisplayMode.REFRESH_RATE_UNKNOWN);
		main m = new main();
		m.run(dm);
		
	}/*
	while(right == false){x--;}while(right == true){x++;}
		while(down == false){y--;}while(down == true){y++;}
		if(x <= 0){right = true;}if(x >= m.getWidth()){right = false;}
		if(y <= 0){down = true;}if(y >= m.getWidth());
	*/
	
	private title s;
	private Image bg;
	private Image ball;
	private static int x = 0;
	private static int y = 0;
	private static boolean right = false;
	private static boolean down = false;
	private boolean loaded = false;
	Timer moveball = new Timer(10,new ActionListener(){
		public void actionPerformed(ActionEvent e){
			if(right == false){x--;}if(right == true){x++;}
			if(down == false){y--;}if(down == true){y++;}
			if(x <= 0){right = true;}if(x >= 800){right = false;}
			if(y <= 0){down = true;}if(y >= 600){down = false;}
			repaint();
		}
	});
	public void paint(Graphics g){
		g.clearRect(0,0,getWidth(),getHeight());
		if(g instanceof Graphics2D){
			Graphics2D g2 = (Graphics2D)g;
			g2.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
			
		}
		if(loaded){
			g.drawImage(bg,0,0,null);
			g.drawImage(ball,x,y,null);
		}
		g.drawString("Click To Start or Press Any Key To Exit",180,500);
	}
	public void run(DisplayMode dm){
		setBackground(Color.BLACK);
		setForeground(Color.YELLOW);
		setFont(new Font("Comic Sans MS",Font.PLAIN,24));
		loaded = false;
		loadpics();
		addMouseListener(this);
		addKeyListener(new keyl());
		title s = new title();
		moveball.start();
		try{
			s.setFullScreen(dm,this);
		}
		catch(Exception ex){}
	}
	public void loadpics(){
		bg = new ImageIcon("C:\\Documents and Settings\\Lam\\My Documents\\My Pictures\\fun.png").getImage();
		ball = new ImageIcon("C:\\Program Files\\Ds Game Maker\\Resources\\Sprites\\Ball.png").getImage();
		loaded = …

I just realized that my KeyListener isn't working. Sorry for troubling you again but do you know why? I'm pretty sure RestoreScreen() works because I had already tested it with thread.sleep().

Oh yes, how silly of me :D . Sorry for that. Thanks again! It moves now but I think I should make the amount of milliseconds before the timer executes the 'actionPerformed' method a bit lower because it moves too slow!
Anyway, thanks again! I want to hug you guys!

Hmm, it's still not moving the ball image :S , the only code that I changed from before was changing the while to an if.

I see, so they cannot never end.
The while loop link you gave me says you can though, I think...
Anyway, problem solved. Thanks again!

Oh yeah! I know why now! See James, telling me made me understand :D
Though I might still be wrong.
Using If statements will work because it will execute the code every 1/2 a second because it's in a timer right?
I still don't understand why while loops work though.
Thanks James and Akill10!!

Huh? That code is a loop isn't it?

while(right){x++;}
while(!right){x--;}
while(down){y++;}
while(!down){y--;}

Okay, so I read through everything on the links. Thanks, I learned some more about numerical data but I think I already new what I read about while loops.
Anyway, this is what I think I want in just plain English.
While right is equal to true; increment variable x.
while right is equal to false; decrement variable x.
While down is equal to true; increment variable y.
While down is equal to false; decrement variable y.

Hmm, I have no idea. I understand that 'true' returns 1 and 'false' returns 0...
Maybe if you tell me why then I'll be able to do the rest :D .

Oh, well do you know why they're wrong?

Anyone?

OK, I used a timer and.... Nothing.
I don't know whether this is correct. I haven't changed the title class. Maybe if you can find the time?

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class main extends JFrame implements MouseListener{
	class keyl implements KeyListener{

		@Override
		public void keyPressed(KeyEvent e) {
				s.RestoreScreen();
		}

		@Override
		public void keyReleased(KeyEvent e) {
				s.RestoreScreen();
		}

		@Override
		public void keyTyped(KeyEvent e) {
				s.RestoreScreen();
		}
		
	}
	public static void main(String[] args) {
		DisplayMode dm = new DisplayMode(800,600,16,DisplayMode.REFRESH_RATE_UNKNOWN);
		main m = new main();
		m.run(dm);
		
	}/*
	while(right == false){x--;}while(right == true){x++;}
		while(down == false){y--;}while(down == true){y++;}
		if(x <= 0){right = true;}if(x >= m.getWidth()){right = false;}
		if(y <= 0){down = true;}if(y >= m.getWidth());
	*/
	
	private title s;
	private Image bg;
	private Image ball;
	private static int x = 0;
	private static int y = 0;
	private static boolean right = false;
	private static boolean down = false;
	private boolean loaded = false;
	Timer moveball = new Timer(500,new ActionListener(){
		public void actionPerformed(ActionEvent e){
			while(right == false){x--;}while(right == true){x++;}
			while(down == false){y--;}while(down == true){y++;}
			if(x <= 0){right = true;}if(x >= 800){right = false;}
			if(y <= 0){down = true;}if(y >= 600);
			repaint();
		}
	});
	public void paint(Graphics g){
		g.clearRect(0,0,getWidth(),getHeight());
		if(g instanceof Graphics2D){
			Graphics2D g2 = (Graphics2D)g;
			g2.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
			
		}
		if(loaded){
			g.drawImage(bg,0,0,null);
			g.drawImage(ball,x,y,null);
		}
		g.drawString("Click To Start or Press Any Key To Exit",180,500);
	}
	public void run(DisplayMode dm){
		setBackground(Color.BLACK);
		setForeground(Color.YELLOW);
		setFont(new Font("Comic Sans MS",Font.PLAIN,24));
		loaded = false;
		loadpics();
		addMouseListener(this);
		addKeyListener(new keyl());
		title s = new title();
		moveball.start();
		try{
			s.setFullScreen(dm,this);
		}
		catch(Exception ex){}
	} …

Right, will making a different method instead of using the main method with the movement if the balls positions in a loop still burn CPU cycles as much or I should just use javax.swing.Timer?
So s.RestoreScreen() should work?
title.java code:

import javax.swing.*;
import java.awt.*;
public class title extends JFrame{
	
		private GraphicsDevice vc;
		
		public title(){
			GraphicsEnvironment env = GraphicsEnvironment.getLocalGraphicsEnvironment();
			vc = env.getDefaultScreenDevice();
			
		}
		
		public void setFullScreen(DisplayMode dm,JFrame window){
			window.setUndecorated(true);
			window.setResizable(false);
			vc.setFullScreenWindow(window);
			
			if(dm != null && vc.isDisplayChangeSupported()){
				try{
					vc.setDisplayMode(dm);
				}catch(Exception ex){}
			}
		}
		
		public Window getFullScreenWindow(){
			return vc.getFullScreenWindow();
		}
		
		public void RestoreScreen(){
			Window w = vc.getFullScreenWindow();
			if(w != null){
				w.dispose();
			}
			vc.setFullScreenWindow(null);
		}
		
}

Will nobody help?

Why won't this work? I'm trying to make a ball appear and move along my screen but it's failing :'( . I'm :( and also trying to make it so when you press any key it restores the full screen but that's also failing. :'( Can anyone help?

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class main extends JFrame implements MouseListener{
	class keyl implements KeyListener{

		@Override
		public void keyPressed(KeyEvent e) {
				s.RestoreScreen();
		}

		@Override
		public void keyReleased(KeyEvent e) {
				s.RestoreScreen();
		}

		@Override
		public void keyTyped(KeyEvent e) {
				s.RestoreScreen();
		}
		
	}
	public static void main(String[] args) {
		DisplayMode dm = new DisplayMode(800,600,16,DisplayMode.REFRESH_RATE_UNKNOWN);
		main m = new main();
		m.run(dm);
		while(right == false){x--;}while(right == true){x++;}
		while(down == false){y--;}while(down == true){y++;}
		if(x <= 0){right = true;}if(x >= m.getWidth()){right = false;}
		if(y <= 0){down = true;}if(y >= m.getWidth());
	}
	
	private title s;
	private Image bg;
	private Image ball;
	private static int x = 0;
	private static int y = 0;
	private static boolean right = false;
	private static boolean down = false;
	private boolean loaded = false;
	
	public void paint(Graphics g){
		g.clearRect(0,0,getWidth(),getHeight());
		if(g instanceof Graphics2D){
			Graphics2D g2 = (Graphics2D)g;
			g2.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
			
		}
		if(loaded){
			g.drawImage(bg,0,0,null);
			g.drawImage(ball,x,y,null);
		}
		g.drawString("Click To Start or Press Any Key To Exit",180,500);
	}
	public void run(DisplayMode dm){
		setBackground(Color.BLACK);
		setForeground(Color.YELLOW);
		setFont(new Font("Comic Sans MS",Font.PLAIN,24));
		loaded = false;
		loadpics();
		addMouseListener(this);
		addKeyListener(new keyl());
		title s = new title();
		try{
			s.setFullScreen(dm,this);
		}
		catch(Exception ex){}
	}
	public void loadpics(){
		bg = new ImageIcon("C:\\Documents and Settings\\Lam\\My Documents\\My Pictures\\fun.png").getImage();
		ball = new ImageIcon("C:\\Program Files\\Ds Game Maker\\Resources\\Sprites\\Ball.png").getImage();
		loaded = true; …

Oh, that's a shame, just got my IPhone and no game developing :'( .
Buying a Mac for Christmas then :) . Thanks for the info guys.

I'm sure you can code IPhone games with java, it's cross-platformed with the IPhone I think apple announced. Maybe they didn't and it was a vision I saw in the wormhole on my bedroom window.
Anyway, so the only way is to code using Objective-C?

How can I develop IPhone games with Java?
I've tried something called XMLVL but that doesn't seem to be up to date and I can't use it because they don't have anything I can download to use...
So is there any other alternative?

I see, well thanks! Seems to be working. :)

Thank you! It removed the error! I don't know whether it actually removes the error or hides it though so I'll see.

OK.
It comes up with an error (red zig zag line underneath code)after I used Player player = new Player(); and this should work according to some examples.
The error is: "Access restriction: The type Player is not accessible due to restriction on required library C:\Program Files\Java\jre6\lib\ext
\jmf.jar"

I read somewhere, that you can make Eclipse ignore restrictions but I still fail at finding out how to do that :(

Also I am using JMF.

Yay! Found out how to install JMF now. Some of the examples don't work though, something about restrictions on Eclipse but I suppose that's for the Eclipse forum.

James, thanks but I tried using the JLayer example in your link but Eclipse still gave restriction errors so I guess this was my real problem.

Thank you guys!

Yays, INSERT clause? Time to get searching!!
Thanks for the help and links and references and stuff.

How can I send some data to a MySQL database?
I'm using php.

I did look it up with my best friend, google.
Didn't really find anything useful. Nothing about how to use it or anything.
Also I meant if he could explain how to use it.

Can you explain further please?

I simply do not believe you.

Oof, you really should believe me.

I searched How to use JMF instead of JMF Documentation.
Thanks for the references!!

looked everywhere!!! I found JMStudio that got installed with JMF but I don't know how to use it still...

How do I use JMF?

Is there anyway to play an mp3 file in java?

P.S I'm new here, hello world?