mainmidlet.java

支持蓝牙的手机游戏 支持蓝牙的手机游戏的分析与实现

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package org.challenge.chengshi;

import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
import org.challenge.chengshi.display.DisplayMessage;
import org.challenge.chengshi.game.GameUI;
import org.challenge.chengshi.record.ListRecord;

/**
 * @author challenge
 */
public class MainMidlet extends MIDlet implements CommandListener {
    /** The messages are shown in this demo this amount of time. */
    static final int ALERT_TIMEOUT = 2000;

    /** A list of menu items */
    private static final String[] elements = { "Server", "Client" };

    /** Soft button for exiting the MIDlet. */
    private final Command EXIT_CMD = new Command("退出", Command.EXIT, 2);

    /** Soft button for launching a client or sever. */
    private final Command OK_CMD = new Command("确定", Command.SCREEN, 1);
    private final Command BQ_CMD = new Command("版权", Command.SCREEN, 1);

    /** A menu list instance */
    private final List menu = new List("Bluetooth", List.IMPLICIT, elements, null);

    /** A GUI part of game that publishes images. */
    private GameUI gameUI;

    /** value is true after creating the server/client */
    private boolean isInit = false;
    
    private final Command ABOUT_CMD=new Command("关于",Command.OK,1);
    private final Command HELP_CMD=new Command("帮助",Command.HELP,1);
    private final Command RECORD_CMD=new Command("记录列表",Command.SCREEN,1);
    
    private static final String HELP_STR="此游戏属于棋类游戏，上下左右为手机标准的按键,当某一方横或者竖的四的都一样时即为胜方;此游戏分为两个阶段，刚开始时双方可以自由地选择地方下棋，当棋盘上没有空时进入第二阶段，此时双方每人选择一个自己的棋子并去除，然后采用走棋（只可走到相连的位置上）。";
    private static final String ABOUT_STR="此游戏源于本人小时候玩过的一个小游戏，具体见帮助！";
    private static final String BQ_STR="此游戏属于本人大学毕业设计时所做，禁止用于商用，转载或修改后发布请注明出处；有问题请联系本人EMAIL: [e-mail]";

    /**
     * Constructs main screen of the MIDlet.
     */
    public MainMidlet() {
        menu.addCommand(EXIT_CMD);
        menu.addCommand(OK_CMD);
        menu.addCommand(ABOUT_CMD);
        menu.addCommand(HELP_CMD);
        menu.addCommand(RECORD_CMD);
        menu.addCommand(BQ_CMD);
        menu.setCommandListener(this);
    }

    /**
     * Creates the demo view and action buttons.
     */
    public void startApp() {
        if (!isInit) {
            show();
        }
    }

    /**
     * Destroys the application.
     */
    public void destroyApp(boolean unconditional) {
        if (gameUI != null) {
            gameUI.destroy();
        }
    }

    /**
     * Does nothing. Redefinition is required by MIDlet class.
     */
    protected void pauseApp() {
    }

    /**
     * Responds to commands issued on "client or server" form.
     *
     * @param c command object source of action
     * @param d screen object containing the item action was performed on
     */
    public void commandAction(Command c, Displayable d) {
        if (c == EXIT_CMD) {
            destroyApp(true);
            notifyDestroyed();

            return;
        }else if(c==ABOUT_CMD){
            this.showString(ABOUT_STR);
            return;
        }else if(c==HELP_CMD){
            this.showString(HELP_STR);
            return;
        }else if(c==RECORD_CMD){
            new ListRecord(this);
            return;
        }else if(c==BQ_CMD){
            this.showString(BQ_STR);
            return ;
        }

        switch (menu.getSelectedIndex()) {
        case 0:
            gameUI = new GameUI(this,true);

            break;

        case 1:
            gameUI=new GameUI(this,false);

            break;

        default:
            System.err.println("Unexpected choice...");

            break;
        }

        isInit = true;
    }

    /** Shows main menu of MIDlet on the screen. */
    public void show() {
        Display.getDisplay(this).setCurrent(menu);
    }
    
    public void setDisplayable(Displayable display){
        Display.getDisplay(this).setCurrent(display);
    }
    
    public void showString(String message){
        new DisplayMessage(this,message);
    }

    /**
     * Returns the displayable object of this screen -
     * it is required for Alert construction for the error
     * cases.
     */
    Displayable getDisplayable() {
        return menu;
    }
}