roadrun.java

大量j2me源代码

import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;

/**
 * The application class for the game RoadRun.
 * @author Martin J. Wells
 */

public class RoadRun extends MIDlet
{
   private MainMenu menu;

   /**
    * MIDlet constructor instantiates the main menu.
    */
   public RoadRun()
   {
      menu = new MainMenu(this);
   }

   /**
    * Handles Application Manager notification the MIDlet is starting (or
    * resuning from a pause). In this case we set the menu as the current
    * display screen.
    * @throws MIDletStateChangeException
    */
   public void startApp() throws MIDletStateChangeException
   {
      Display.getDisplay(this).setCurrent(menu);
   }

   /**
    * Handles Application Manager notification the MIDlet is about to be paused.
    * We don't bother doing anything for this case.
    */
   public void pauseApp()
   {
   }

   /**
    * Handles Application Manager notification the MIDlet is about to be
    * destroyed. We don't bother doing anything for this case.
    */
   public void destroyApp(boolean unconditional) throws MIDletStateChangeException
   {
   }

   /**
    * Called by the game classes to indicate to the user that the current game
    * is over.
    */
   public void gameOver()
   {
      // Display an alert (the device will take care of implementing how to
      // show it to the user.
      Alert alert = new Alert("", "Splat! Game Over", null, AlertType.INFO);
      // Then set the menu to be current.
      Display.getDisplay(this).setCurrent(alert, menu);
   }

   /**
    * A utility method to shutdown the application.
    */
   public void close()
   {
      try
      {
         destroyApp(true);
         notifyDestroyed();
      }

      catch (MIDletStateChangeException e)
      { }
   }

   /**
    * A utility method to create and then activate a new GameScreen.
    */
   public void activateGameScreen()
   {
      GameScreen gameScreen = new GameScreen(this);
      Display.getDisplay(this).setCurrent(gameScreen);
   }


}