CASSE BRIQUE EN J2ME

/**
 * Voici le code source de la classe Main, la classe de base à l'application
 */

package myCasseBrique.Main;

import javax.microedition.lcdui.Command;
import javax.microedition.lcdui.CommandListener;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Displayable;
import javax.microedition.lcdui.Form;
import javax.microedition.lcdui.StringItem;
import javax.microedition.midlet.MIDlet;
import javax.microedition.midlet.MIDletStateChangeException;

/**
 * @package myCasseBrique.Main
 * @name MainCasseBrique extends MIDlet implements CommandListener
 * @filesource MainCasseBrique.java
 * 
 * @author Cyril Nicodème
 * 
 * @license Gnu/Gpl
 */
public class MainCasseBrique extends MIDlet implements CommandListener {
	/**
	 * @var Display _display
	 * Instance of Display
	 */
	private Display _display;
	
	/**
	 * @var Form _form
	 * Instance of Form
	 */
	private Form _form;
	
	/**
	 * @var StringItem _welcomeStr
	 * Instance of StringItem
	 */
	private StringItem _welcomeStr;
	
	/**
	 * @var Command _exitC
	 * Instance of Command
	 */
	private Command _exitC;
	
	/**
	 * @var Command _startC
	 * Instance of Command
	 */
	private Command _startC;
	
	/**
	 * @var BaseCasseBrique _baseCasseBrique
	 * Instance of BaseCasseBrique
	 */
	private BaseCasseBrique _baseCasseBrique;
	
	/**
	 * @name public MainCasseBrique
	 * Constructor
	 * Set the base game
	 */
	public MainCasseBrique () {
		this._display = Display.getDisplay(this);
		this._form = new Form("Casse Brique");
		this._welcomeStr = new StringItem ("","Bienvenue dans le jeu du Casse Brique.\nVous pouvez déplacer la barre en cliquant sur les touche 4 et 6.\nBon courage ! :)");
		
		this._exitC = new Command("Exit",Command.EXIT,1);
		this._startC = new Command("Start",Command.OK,2);
		
		this._form.append(this._welcomeStr);
		
		this._form.addCommand(this._exitC);
		this._form.addCommand(this._startC);
		this._form.setCommandListener(this);
	}

	/**
	 * @name protected void destroyApp
	 * Destroy (end) the application
	 * 
	 * @param boolean arg0
	 * 
	 * @return void
	 */
	protected void destroyApp (boolean arg0) throws MIDletStateChangeException {
		notifyDestroyed();
	}

	/**
	 * protected void pauseApp
	 * Set the game into pause mod
	 * 
	 * @return void
	 */
	protected void pauseApp () {
		// Nothing to do
	}

	/**
	 * protected void startApp
	 * Start the application (set the current Form)
	 * 
	 * @return void
	 */
	protected void startApp () throws MIDletStateChangeException {
		this._display.setCurrent(this._form);
	}

	/**
	 * @name public void commandAction
	 * Set the view (Form or Canvas)
	 * And Manage the Commands pressed (Start, Exit)
	 * 
	 * @param Command cmd
	 * @param Displayable curDisplay
	 */
	public void commandAction (Command cmd, Displayable curDisplay) {
		if (curDisplay == this._baseCasseBrique) {
			if (cmd == this._exitC) {
				this._baseCasseBrique = null;
				this._display.setCurrent (this._form);
			}
		}
		else {
			if (cmd == this._startC) {
				this._baseCasseBrique = new BaseCasseBrique ();
				this._baseCasseBrique.addCommand(this._exitC);
				this._baseCasseBrique.setCommandListener(this);
				this._display.setCurrent(this._baseCasseBrique);
				this._baseCasseBrique.repaint ();
			}
			else if (cmd == this._exitC) {
				try {
					this.destroyApp(true);
				}
				catch (MIDletStateChangeException mSCE) {
					System.out.println("Une erreur s'est produite : "+mSCE.getMessage ());
				}
			}
		}
	}

}