optionscreen.java

j2me的坦克大战 元代码 单机版和蓝牙联网版

import javax.microedition.lcdui.ChoiceGroup;
import javax.microedition.lcdui.Command;
import javax.microedition.lcdui.CommandListener;
import javax.microedition.lcdui.Displayable;
import javax.microedition.lcdui.Form;
 
public class OptionScreen extends Form implements CommandListener {

    private GameMidlet gameMidlet;
    private Command cmdExit;
    private int music;
    private ChoiceGroup choiceMusic;
    public boolean gaming=false;
    public OptionScreen(GameMidlet gameMidlet) {
        super("Setting");
        this.gameMidlet = gameMidlet;
        cmdExit = new Command("Back", Command.BACK, 1);
        choiceMusic = new ChoiceGroup("BackGround Music", 1);
        choiceMusic.append("Just NO Music",null);
        choiceMusic.append("Happy Music", null);
        choiceMusic.append("Comfort Music", null);
        choiceMusic.append("Latin Music", null);
        choiceMusic.setSelectedIndex(3, true);
        addCommand(cmdExit);
        setCommandListener(this);
        append(choiceMusic);
    }
    public void commandAction(Command arg0, Displayable arg1) {
        if (arg0 == cmdExit) {
            music = (int)choiceMusic.getSelectedIndex();
            gameMidlet.setMusic(music);
            if(!gaming)gameMidlet.gameMenuCanvasBack();
            else {
                gameMidlet.displayBattleCanvas();
            }
        }
    }
    
}