Structure of a game pgram

Hi,
I wish to do a simple online poker game in java. Shall I write the code throgh socket programming? Is there any need to create a server through socket?(becuase I wish to implement this on a remote host). If I create a server, How will I run it remotely?Should I use the remote server instead of server program created by me?
I have experience in PHP programming. Also I have created simple chat programs run on My school's LAN. Shall I use remote Tomcat server for this purpose?
Shall I use servlet instead of socket programming.
Please help me.
Thanking in advance.
From,
Vinod A.

The answer to most of these questions are; it depends.
If you want to have the program visible to the internet I would suggest using a JSP server like tomcat.

Similar Messages

Java Card Game (Carioca)

Hi everyone.
Im currently making a card game in java for a south american game called Carioca
originally i had
CariocaController, which controlled game logic such as creating cards and players, dealing the cards setting the cards etc.
btnStartGame in GUI would run controller method startGame which would initialize everything then set the GUI.
CariocaTablelGUI, which extended JFrame and set the game GUI by using swingcomponents (JButtons with ImageIcons for cards)
Card, like it says, card suit, no and value
Deck, which created an ArrayList<Card> + 2 jokers.
Pile which extended ArrayList<Card>. (Used for creating the 2deck game, player hands, putdown pile)
Ive never been to good with GUI's and not enjoying my inopropriate gui structure i decided to read about java game designs.
I read OReilly Killer Game Programming in Java chapters 1-13 before it got into 3d java. and not feeling it provided the examples i needed i went back to my old book
Deitel & Deitel How to program Java Fifth edition. which has a case study of ElevatorSimulation which uses the Model View Controller design pattern.
I have used this simulation as my guide to reform my code structure as i want to create this game as proffesionally and efficiently as possible.
Now i have.
CariocaTable which extends JFrame and in its constructor;
          // instantiate model, view and ,controller
          model = new CariocaModel();
          view = new CariocaPanel();
          controller = new CariocaController(model);
          // register View for Model events
          model.setCariocaListener( view );
          add(view, BorderLayout.CENTER);
          add(controller, BorderLayout.SOUTH);CariocaPanel in it has 4 player panels (4 player max game) which would contain their hands. then a center panel which contains the pickup and putdown piles.
I am having alot of trouble implementing this pattern to my game (mybe im on the wrong track).
the controller (in the ElevatorSimulation ) has 2 buttons which executes model method addPerson, thats about all the controller does which rocks my understanding.
the model implements ElevatorSimulationListener (which extends all needed listeners) and has private variabels for all listeners.
it then has a setElevatorSimulationListener(ElevatorSimulationListener listener) which is set with the view class.
i have trouble understanding the communication between controller-view and model-view.. controller has to go threw model to talk to view but model only talks to view through listener methods
public void lightTurnedOff( LightEvent lightEvent )
//variable lightListener is the view.
      lightListener.lightTurnedOff( lightEvent );
   }i dont know where all the logic should go. i currently have model with the startGame method which creates players and cards, deals cards etc.
am i on the right track. am i misunderstanding the design pattern? im sorry for the lengthy post, im having trouble understanding this and would like assistance with my understanding or even refer me to a book or website the would be helpful. if u would like more information please do ask.

morgalr wrote:
OK, I'll make a few assumptions and you can correct me if I am wrong on any of them:
1 - the game is for 1 person to play against the computer
2 - you may want to expend to multiplayer at some point
3 - you would like to have the structure of the game as modular as possible to allow changesThank you for replying, yes thats exactly right.
My approach now is to maintain the same structure as before instead of using the ElevatorSimulation as a guide.
CariocaController will contain game logic and the static main method, and will update CariocaTable threw set methods.
i will keep the revamped GUI classes, using what ive learned about using 2d instead of Swing Components, ive created an ImageLoader class which CariocaTable instantiates that loads all images into a hash map. PlayerPanel for each player, each panel contains variable Player, Pile hand, Pile downHand (objective of the game). Mybe i should get rid of the pile variables since the class Player already contains them?
Its the drawing of the GUI that gets to me. Any other suggestions or ideas?

Scrollable frame

I have 6 test boxes all the same size lined up side-by-side.
They are grouped and pasted into a box that is exactly the same height, but not as wide.
I selected "pan only" in the overlay creator.
When I view it on the iPad, it scolls left-to-right just fine, but there is also a slight amount of vertical scrolling happening.
What am I doing wrong?

Best I can explain it, original code which works fine animation and frame change smooth etc:
JFrame --> JPanel (frame contentPanel) --> extended Canvas structure is setup
Canvas buffer strategy set to manual
Strategy stored to variable (strategy) using Canvas.getBufferStrategy
Game loop is started
Graphics2D object obtained using strategy.getDrawGraphics
Loops through entities in games (space ships in my case)
Updates positions etc
Draws to Graphics2D object (which is still in buffer and remains there)
Graphics cleared and buffer flipped to on screen using graphics.dispose() and strategy.show() methods
Then changed to:
JFrame --> JScrollPane (frame contentPanel) --> extended JPanel structure is setup
Game loop is started
Graphics object obtained using JPanel.getGraphics
Loops through entities in games (space ships in my case)
Updates positions etc
Draws to Graphics2D object (which is still in buffer and remains there)
Graphics cleared graphics.dispose()
The game still works but its all flickery (best way to describe)
Don't know if you'll be able to give a solution using that info, it's getting late so if not ill do the SSCCE tommorrow.
Thanks a bunch.
Edited by: tolk2 on Oct 19, 2008 2:50 PM

Scrollable Frame (Swing Newbie)

Hi, new to Swing programming and getting stuck with making a scrollable window.
This was my original code which works (the base class extends Canvas so when I used panel.add(this) it is adding a Canvas:
public Game() {
          // create a frame to contain our game
          container = new JFrame("Space Invaders 102");
          // get hold the content of the frame and set up the resolution of the game
          JPanel panel = (JPanel) container.getContentPane();
          panel.setPreferredSize(new Dimension(800,600));
          panel.setLayout(null);
          // setup our canvas size and put it into the content of the frame
          setBounds(0,0,800,600);
          panel.add(this);
          // Tell AWT not to bother repainting our canvas since we're
          // going to do that our self in accelerated mode
          setIgnoreRepaint(true);
          // finally make the window visible
                container.pack();
          container.setResizable(true);
          container.setVisible(true);I then had a quick look at a few examples and tried this:
public Game() {
          // create a frame to contain our game
          container = new JFrame("Space Invaders 102");
          // get hold the content of the frame and set up the resolution of the game
          JPanel panel = (JPanel) container.getContentPane();
          panel.setPreferredSize(new Dimension(800,600));
          panel.setLayout(null);
          // setup our canvas size and put it into the content of the frame
          setBounds(0,0,800,600);
          //panel.add(this);
                JScrollPane pane = new JScrollPane(this);
                panel.add(pane);
          // Tell AWT not to bother repainting our canvas since we're
          // going to do that our self in accelerated mode
          setIgnoreRepaint(true);
          // finally make the window visible
                container.pack();
          container.setResizable(true);
          container.setVisible(true);This didn't work, the game still functioned as normal but there were no scrollbars on the pane regardless of how big/small I resized the window.

Best I can explain it, original code which works fine animation and frame change smooth etc:
JFrame --> JPanel (frame contentPanel) --> extended Canvas structure is setup
Canvas buffer strategy set to manual
Strategy stored to variable (strategy) using Canvas.getBufferStrategy
Game loop is started
Graphics2D object obtained using strategy.getDrawGraphics
Loops through entities in games (space ships in my case)
Updates positions etc
Draws to Graphics2D object (which is still in buffer and remains there)
Graphics cleared and buffer flipped to on screen using graphics.dispose() and strategy.show() methods
Then changed to:
JFrame --> JScrollPane (frame contentPanel) --> extended JPanel structure is setup
Game loop is started
Graphics object obtained using JPanel.getGraphics
Loops through entities in games (space ships in my case)
Updates positions etc
Draws to Graphics2D object (which is still in buffer and remains there)
Graphics cleared graphics.dispose()
The game still works but its all flickery (best way to describe)
Don't know if you'll be able to give a solution using that info, it's getting late so if not ill do the SSCCE tommorrow.
Thanks a bunch.
Edited by: tolk2 on Oct 19, 2008 2:50 PM

Where best to check conditions, main loop?

Ok, with a little tinkering, I now have a nearly functional app.
As I put pieces up on the board, I keep count. When I remove a piece from the board, I decrement my count, and the level is complete when the count reaches 0.
So, where is the best place to do my check for 0 pieces left?
I know for a fact the last piece is removed while in my 'move a piece' logic. The actual piece removal is down several levels into the code, which I need to unwind from to keep things clean. So, where is the main application loop, a point that I know will get called, once a cycle?
I'm using a Utility Application template, in case that makes a difference.

reststop wrote:
Are you saying I should do the win code at the point where I detect all pieces are gone?
Yes. That's the natural place. I think that's where most games would start whatever code needed to run after the zero count. If after a zero, you need to wait for something else to happen, then the code that handles the terminal event would be the natural place to start the win code. But if the zero is the end of the game, then end it.
But remember, forum helpers can only give you general principles. I doubt many developers here are willing to grok all the details of your particular game in order to see if the general rule applies. That's your job. For example, Q told you that notifications are better than polling. That's totally true, and if that advice doesn't help you right now, sooner or later you'll want to remember it. But it's your job to see if the advice applies to your current project.
All I can do is point out that I can't see why your win code shouldn't be started by the code that manages the counter. That doesn't mean my opinion applies to your project. It just means maybe stand back and try to see the forest instead of the trees. Ask yourself: "Hmm... This developer who has no clue how my game operates is telling me that I, who have lived with this puppy day and night for weeks, might be looking in the wrong place to do something... Why is that??" So check it out.
Maybe what works for most games is simply inappropriate for yours. Or maybe it's impossible to do the natural thing anymore because the structure of your game has been twisted into a pretzel by newbie design decisions. That doesn't mean you need to tear your game apart and start over. It just means you'll do a better job next time because you now have some experience with the consequences of early, structural decisions.
Anyway customers don't care if you write professional code, and they don't care if your app is MVC. They care whether they like the game. So maybe your code will never make it into a magazine, but you'll make a gazillion dollars and wind up employing all the programmers who used to criticize your code.
\- Ray

Why to create a package ?

What is the advantages and the impact of using create a package with our classes ?

Suppose your building a large application using model-view-control, then you might have this package structure:
org.myorg.game.view
org.myorg.game.model
org.myorg.game.facade
This way you can seperate the view logic from the model logic. This means that the view package can't reach default access methods in facade. Thus there is a lower chance that the view package destroys something in the facade package..
You can also give different packages different permissions using a SecurityManager.
Hope it helped,
Daniel

A little query

hi
i am developing a game and i have a problem which i would like advise on. i need help on letting the player to continue to the next stage of the game once completed the first stage without pressing any buttons. that is when the child has matched all the cards they can proceed to the next stage which is another GUI (JFrame) automatically. please help
Thanks

//Put this in your run loop
if (won()) {
    level++;
    loadLevel(level);
//end this portion in your run loop
public boolean won() {
    return (all cards are in their correct place or whatever);
//In your init
//Good structure for the game so it's easy to change levels
level = 1;
loadLevel(level);
public void loadLevel(int level) {
    //if your cards are in a vector
    cards.clear();
    do whatever you need to place the new cards here;
}I hope that helps!

Trim intersection circles at point of tangency in Illustrator CC

i am building a logo which is essentially a circle with a road passing through the middle of it. Normally, i would use autocad to do this, i find it much faster an easier to use, however, i am learning how to use adobe products (in this case Illustrator) with my new CC subscription.
I have used a number of intersection circles in order to generate the object, but am having problems trying to trim the unwanted interior circles at points of tangency. I want the dark outline to stay for the time being, as i intend to color the area inside the circle (excluding the road) orange.
The blue object in the background is the original favicon that i am copying. It is a bitmap that i want to vectorise.
I have worked out to get from the above to what is below...so am making progress. I simply didnt remember to box select all objects prior to attacking it with the "Shape Builder Tool". Now i need to figure out how to trim the unwanted arcs that are outside the colored area?

Congratulations, that's a very nice effect! Hope you'll check out more of the learning content offered in the Illustrator section. In particular, you may enjoy a tutorial on the Shape Builder tool that's structured as a game. How to use Shape Builder | Adobe Illustrator CC tutorials
To access other tutorials, go to the main Illustrator section. Learn Illustrator, get help and support | Adobe Illustrator CC. Then click on "Show all tutorials," followed by "Learn Essentials" right below the large image. You'll find plenty of tutorials here that show you how to learn features and create unique effects. Good luck!
Best,
Rita Amladi

Help with Game Display structure and adding independant objects

I'd like to do two things and I'm not sure how to set up the code.
1) Add 1 to n enemies that think and move on their own. Basically their own threaded life I think.
2) Add 1 to n weapons fire that when the thread is finished apply the damage.
Currently I'm only using Graphics2d to draw everything to an off screen image. The issue I have is that most of the individual object stuff is wrapped up in the main game loop rather than added to the object itself.
Here is my current working pseudo code: I have this working but seems like I need to make it more flexible. Just not sure how.
public class combatDisplay extends JPanel{
@Override
protected void paintComponent(Graphics g){
     creates Graphics2d offScreenImage
     wipeClean offScreenImage
     drawPlayers 0 to n
     drawSpaceShip 0 to n --> drawMe(offScreenImage);
     drawWeaponShots 0 to n
     drawExplosions 0 to n
     draw offScreenImage to panel
public void setPlayers (ArrayList al) {}
public void setObjects (ArrayList al) {}
public void setSpaceShips (ArrayList al) {}
public void setWeaponShots (ArrayList al) {}
public void setExplosions (ArrayList al) {}
class Spaceship{
     Point location
     Polygon shape
public void drawMe (BufferedImage bf){
     draw Polygon
class WeaponShot{
     Point location
     Polygon shape
public void drawMe (BufferedImage bf){
     draw Polygon
class GameLogicLoop {
     movePlayer
     moveEnemies
     fireWeapons
        applyDamage
}It seems like I should just spawn an enemy thread that checks its own ranges and does its own movements. But I'm not sure how to get that to display the offscreen image. Can an arraylist hold a thread?
Likewise, with the weapons fire.... it should be self contained to check hit, display itself, display explosion or hit, then apply damage to its target when animation is completed. These two seem like a similar code structure I'm just not sure how to set it up yet.
Any psuedocode would be helpful.

Morgalr,
Awesome responses thanks. Normally I don't code so it is an interesting (read hard) learning curve for me. Usually I just design and hire someone smarter than me to code.
If you don't mind taking a look, I tried reworking everything toward the approach we have been discussing. If you see anything glaring and troublesome, please yell.
Ship Class is its own thread that can paint itself. Basically it is a sitting ship.
DisplayPane is the image painting class.
loopGame tells the objects when to paint and passes the image reference around.
package controller;
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Point;
import java.awt.Polygon;
import java.awt.image.BufferedImage;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class Controller extends JFrame {
    DisplayPane pane;
    Ship satallite;
   public Controller(){
        setTitle("Controller");
        setBounds(0,0, 400, 400);
        setLayout(null); //absolute position
        setResizable(false);
        pane = new DisplayPane(getBounds().width, getBounds().height);
        add(pane);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setLocationRelativeTo(null);
        setVisible(true);
   class DisplayPane extends JPanel{
       BufferedImage offImage;
       public DisplayPane(int width, int height){
           offImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
           setBounds(0, 0, width, height);
       @Override
       protected void paintComponent(Graphics g){
            g.drawImage(offImage,0,0,this);
       public BufferedImage getImage(){
           return offImage;
       public void setImage(BufferedImage tempImage){
           offImage = tempImage;
       public void wipeImage(){
            Graphics2D big = offImage.createGraphics();
            big.setColor(Color.BLACK);
            big.fillRect(0, 0, getBounds().width, getBounds().height);
   class Ship implements Runnable{
       Thread thread;
       int speedStep;
       boolean bAlive = true;
       Point point = new Point(0,0);
       public Ship(String shipName, int speed){
           thread = new Thread(this, shipName);
           speedStep = speed;
           point.x = (int) ((int) 300 * Math.random());
           point.y = (int) ((int) 300 * Math.random());
       public void start(){
           thread.start();
       public void kill(){
           bAlive = false;
       public void drawShip(BufferedImage tempImage){
            Graphics2D big = tempImage.createGraphics();
            int[] pXfrigate = {point.x, point.x-4, point.x-4, point.x+4, point.x+4};
            int[] pYfrigate = {point.y, point.y+7, point.y+17, point.y+17, point.y+7};
            Polygon frigateShape = new Polygon(pXfrigate, pYfrigate, 5);
            Polygon currentShip = frigateShape;
            big.setColor(Color.GRAY);
            big.fillPolygon(currentShip);
            big.setColor(Color.RED);
            big.drawPolygon(currentShip);
       public void run() {
           int delay = 500;
           while (bAlive){
               try{
                   System.out.println(thread.getName()+" x: "+point.x+" y: "+point.y);
                   Thread.currentThread().sleep(delay);
               }catch (Exception e){}
   public void loopGame(){
        satallite = new Ship("Dot", 0);
        satallite.start();
        while (isVisible()){
            pane.wipeImage();
            satallite.drawShip(pane.getImage());
            pane.repaint();
            try{
                Thread.sleep(0);
            }catch (Exception e){}
            satallite.kill();
        System.exit(0);
   public static void main(String[] args) {
        Controller control = new Controller();
        control.loopGame();
}

Flash 9 Game Structure

I just switched from flash 8 to flash 9 and am looking for
tutorials to make a simple game where you move a character just so
I can get a feel for the structure of a Flash 9 game. You can't put
ActionScript into movie clips anymore. I heard you have to make
everything classes and put them in seperate files. Do you need to
do this? Can the ".as script files" be in the same folder as the
SWF or do they have to be in a certain folder structure? I am
completely lost.

This behavior is also reproducible on firefox 1 / flash 9 as
well was firefox 2 / flash 9. The seg fault appears regardless of
whether the plugin is installed system-wide or to a single profile.
See:
related
thread on Ubuntu forums

Help needed on designing the structure of a flash game

Hi,
I am studying the codes from http://www.emanueleferonato.com/2009/01/16/designing-the-structure-of-a-flash-game-as3-ver sion-part-3/. What I don't get is at level_selection.as. Where does main_menu_button come from? I can't find where it has been created. I only see main_menu, not main_menu_button.
Please help.

The codes in level_selection.as looks like this, but the problem is I cannot find main_menu_button anywhere, except for main_menu.
package {
    import flash.display.Sprite;
    import flash.events.MouseEvent;
    import flash.display.SimpleButton;
    public class level_selection extends Sprite {
        public var main_class:the_game;
        private var level_thumb:level_thumbnail;
        public function level_selection(passed_class:the_game) {
            main_class = passed_class;
            for (var i:int = 1; i<=5; i++) {
                level_thumb = new level_thumbnail(i,main_class);
                addChild(level_thumb);
            main_menu_button.addEventListener(MouseEvent.CLICK, on_main_menu_button_clicked);
        public function on_main_menu_button_clicked(event:MouseEvent) {
            main_class.show_splash();

Game structure

Hi .
Thinking about to organize code, I was wondering, if, it wouldn´t be better, instead of creating a new Game instance when restarting the game, if I should create a restartGame method inside Game´s class. Maybe, that´s a better approach, if I need to remove all listeners, stop all movieclips, nullify some references, etc.
Or maybe, just an endGame and an initiate method
Thanks

either is ok as long as there's nothing left in memory from a previous game that won't be re-used in the next game.

Can you share FP Controls between different Event Structures

I'm creating a program that will either read real-time data from an VNA on the GPIB bus, or read a saved s2p (Agilent) file and analyze it. The FP consists of 5 graphs, and various controls which handle events like printing, changing filters, or exiting. on the BD I have a case structure controlled by an operator selection pop-up. I tried using the same FP controls in the event structures I have setup in each case, as only one event structure would ever be executing at any given time, but the program doesn't seem to like it ast run-time. I've worked around the issue by creating "duplicate" controls and using the property setting to make them visible/disabled, etc., but the is seriously congesting my BD.
Anyone know a way to share controls with seperate event structures?

It sounds like the root problem is the overall structure of your program. I highly recommend that you check out the Queued Message Handler project template in LabVIEW 2012, that will show you how to utilize a single event structure and pass events to a consumer loop. If you program is too large to consider an architecture change at this stage of the game, then there is a workaround for your problem.
What is most likely happening is that you have the event structures all set to lock the front panel until the event completes. However the case structure that you have wrapped around these event structures is causing all but one of these event structures to be unreachable thus preventing you from handling the event. Again, as I stated above, the "RIGHT WAY" to fix this is to select a better program structure but the "kluge work-around" fix is this: Dynamically register for the value change event on all of the controls you are trying to trap events for. Dynamic events can be deregistered and re-registered at run time. This will allow only the event structure in the active owning case structure to be registered for the events, thus no other event structures will get in your way.
Disclaimer: This advice is given based on very minimal information and a great deal of speculation and may not be correct. Please include your code if you need further assistance.
Charles Chickering
Architecture is art with rules.
...and the rules are more like guidelines

How can i adopt the iPhone App-Structure to iTunes for Sync?

Hello Community!
I usually buy apps or games directly over the iPhone-App-Store and i also manage the folder structure directly on the iPhone Screen.
Yesterday i bought a new App via the iTunes Store on my MacBook (don't know why, i thought it would be no problem)
ITunes is set to manual organisation (the box "App Sync" is not set in iTunes).
So my problem is:
I cannot install my recently bought app on my phone without enable synchronisation with iTunes.
But if i set iTunes to app sync it is going to destroy my folder structures and remove apps i bought with the iPhone EVEN if i click "Transfer Purchases"!
Is there a way to manually install the app without destroying my complete structure and losing apps?
Sorry for the critics, but this is not very user-friendly!
Thanks for Help!
Greetings from Germany ,
Patrick

This article will tell you where your iPhone backup is stored on your computer:
http://support.apple.com/kb/ht4946 iTunes content is NOT part of the iPhone backup. You can either copy your iTunes library to your new computer, or you can re-download your purchased iTunes content(except ringtones) to your new computer; http://support.apple.com/kb/ht4527

How to structure several scenes (in symbols) on the main stage timeline

Hi,
I'm new to edge animate but have a Flash background and I'm working in Edge Animate on a game which is structured in several scenes. Each scene I did put in a symbol. Now I wonder how to build the main timeline or the "story - controller" so to speak. I have all the scenes but I do not know how to connect them.
In Flash it was possible to add keyframes of scenes one after another (like stairs) and jump forward or backward if needed to load the movie clips. In Edge Animate all scenes (or symbols) are in place from the beginning of the timeline and I cannot move the symbol to a later keyframe. Of course I can move animations in the timeline. The only way I think is to hide the symbols first and make them visible if needed. But this does not seem to be the right way and I don't understand the concept of structuring complex animations yet.
I would like to know how to structure several scenes in Edge Animate properly. Something like a scene loader or unloader would be useful. Highly appriciate any hints to a solution.
Thank you,
JP

resdesign wrote:
You can also use edgecommons to load edge composition into another edge composition.
Thank you to your tipp so I try to organize my scenes into compositions. I can successfully load a composition (scene2) into the main container :
EC.loadComposition("scene2.html", sym.getSymbol("mainContainer"));
Now I'm facing another situation. At the end of the loaded composition scene2 is a "Next Scene" button suppose to load scene3.html composition into the main container. "Next Scene" is a nested button inside the loaded composition screen2 symbol. How do I load the next compostion from the current one? This code for On Click of course does not work:
EC.loadComposition("scene3.html", sym.getSymbol("mainContainer"));
I think the refer to the mainContainer is wrong. Is it just a targeting issue or is it the wrong approach in general?

Structure of a game pgram

Similar Messages

Maybe you are looking for