menulist.java

是男人就撑20秒

/*
 * MenuList.java
 *
 * Created on 2006年11月24日, 下午6:30
 *
 * 游戏菜单选项类 -- 显示菜单选项内容 新游戏、高分纪录、游戏说明、暂停后的继续游戏
 */
import javax.microedition.lcdui.*;
/**
 *
 * @author TOM
 */
public class MenuList extends List implements CommandListener{
    private ManMidlet midlet;
    private Command exitCommand;
    private boolean gameActive = false;
    
    /** Creates a new instance of MenuList */
    public MenuList(ManMidlet midlet) {
        super("坚持20秒",List.IMPLICIT);
        this.midlet = midlet;
        append("新游戏",null);
        append("高分纪录",null);
        append("游戏说明", null);
        exitCommand = new Command("退出",Command.EXIT,1);
        addCommand(exitCommand);
        setCommandListener(this);        
    }
    
    void setGameActive(boolean active){
        if(active && !gameActive){
            gameActive = true;
            insert(0,"继续游戏",null);  //添加“继续游戏”选项
        }else if(!active && gameActive){
            gameActive = false;
            delete(0);
        }
    }
    
    public void commandAction(Command cmd,Displayable display){
        if(cmd == List.SELECT_COMMAND){
            int index = getSelectedIndex();
            if(index != -1){
                if(!gameActive){
                    index++;    //如果有“继续游戏”选项，后面的选项索引依次加1
                }
                switch(index){
                    case 0:     //Continue
                        midlet.menuListContinue();      //继续游戏
                        break;
                    case 1:     //New Game
                        midlet.menuListNewGame();       //新游戏
                        break;
                    case 2:     //High Score
                        midlet.menuListHighScore();     //高分纪录
                        break;
                    case 3:     //Intruction
                        midlet.menuListInstructions();  //游戏说明
                        break;
                    default:
                        break;
                }
            }
        }else if(cmd.getCommandType() == Command.EXIT){
            midlet.menuListQuit();
        }        
    }    
}