paopao.java

手机游戏 泡泡龙 J2ME源代码+详细注释

package paopao;

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

public class PaoPao extends MIDlet {
  private static PaoPao instance;
  private static Logo logo;
  private static Menu menu;
  private static GameWorld gw;
  static boolean isNewGame      = true;
  static final int LOGO_ID      = 1;
  static final int MENU_ID      = 2;
  static final int GAMEWORLD_ID = 3;
  /** Constructor */
  public PaoPao() {
    instance = this;

  }
  private static void loadResource()
  {
  Resource.init(40);
  for(int i = 1; i <= 15;i ++)
  Resource.setImage(i,Resource.DIR + "point" + i * 6  + ".png");
  Resource.setImage(Resource.BG,Resource.DIR + "bg.png");
  Resource.setImage(Resource.BALL,Resource.DIR + "ball.png");
 // Resource.setImage(Resource.BALL_BOMB,Resource.DIR + "ball_bomb.png");
 // Resource.setImage(Resource.POINT,Resource.DIR + "point.png");
 // Resource.setImage(Resource.AID_LINE,Resource.DIR + "aid_line.png");
  //Resource.setImage(Resource.PROPS,Resource.DIR + "props.png");
  //Resource.setImage(Resource.BBALL,Resource.DIR + "bball.png");
  }
  /** Main method */
  public void startApp() {
if(isNewGame)
    {
    Resource.loadAngleValue();
    loadResource();
    isNewGame = false;
    shiftCanvas(GAMEWORLD_ID,6);
    }
  }

  /** Handle pausing the MIDlet */
  public void pauseApp() {
  }

  /** Handle destroying the MIDlet */
  public void destroyApp(boolean unconditional) {
    gw = null;
        isNewGame = true;
        instance.notifyDestroyed();
        instance = null;
        System.gc();

  }

  /** Quit the MIDlet */
  public static void quitApp() {
    instance.destroyApp(true);
  }

 protected static void shiftCanvas(int canvasId,int hardLevel)
 {
 switch(canvasId)
  {
  case LOGO_ID:
logo = new Logo();
Display.getDisplay(instance).setCurrent(logo);
    break;
  case MENU_ID:
menu = new Menu();
Display.getDisplay(instance).setCurrent(menu);
    break;
  case GAMEWORLD_ID:
if(gw == null)
gw = new GameWorld(hardLevel);
gw.show();
Display.getDisplay(instance).setCurrent(gw);
    break;
    default :
      break;
  }
 }

}