russiamidlet.java

手机版俄罗斯方块

/*
 * Created on 2005-5-18
 * Author: Liao Xuefeng, [e-mail]
 * Copyright (C) 2005, Liao Xuefeng.
 */
package com.crackj2ee.j2me.game.russia;

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

/**
 * The app main midlet.
 * 
 * @author Xuefeng
 */
public final class RussiaMIDlet extends MIDlet {

    private static final String[] OPTIONS = {"NEW GAME", "LOAD GAME", "TOP 10", "EXIT"};
    private static RussiaMIDlet instance = null;

    private Display display = null;
    private List welcome = null;
    private MyCanvas canvas = null;

    public RussiaMIDlet() {
        instance = this;
        display = Display.getDisplay(this);
    }

    protected void startApp() {
        if(welcome==null) {
            welcome = new List("Welcome!", List.IMPLICIT, OPTIONS, null);
            welcome.setCommandListener(new WelcomeListener(welcome));
        }
        display.setCurrent(welcome);
    }

    protected void pauseApp() {
    }

    protected void destroyApp(boolean unconditional) {
    }

    public static void quitApp() {
        if(instance!=null) {
            instance.destroyApp(true);
            instance.notifyDestroyed();
        }
    }

    public static void setDisplay(Displayable d) {
        instance.display.setCurrent(d);
    }
}

class WelcomeListener implements CommandListener {

    private List list;

    public WelcomeListener(List list) { this.list = list; }

    public void commandAction(Command c, Displayable d) {
        if(c==List.SELECT_COMMAND)
            switch(list.getSelectedIndex()) {
            case 0: // new game
                RussiaMIDlet.setDisplay(new MyCanvas(false));
                break;
            case 1: // load game
                RussiaMIDlet.setDisplay(new MyCanvas(true));
                break;
            case 2: // top 10
                break;
            case 3: // exit
                RussiaMIDlet.quitApp();
            }
    }
}