navigator.java

孤单惊魂

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

public class Navigator {
  final public static int MAINMENU = 1;
  final public static int GAME = 2;
  final public static int LOAD = 3;
  final public static int SCORES = 4;
  final public static int SETTINGS = 5;
  final public static int HELP = 6;
  final public static int ABOUT = 7;
  final public static int EXIT = 8;
  public static MIDlet midlet;
  public static Display display;
  public static int current;
  public static boolean resume = false;
  public static void show(Object obj) {
    switch (current) {
      case MAINMENU:
        resume = false;
        display.setCurrent(MainMenu.getInstance());
        break;
      case GAME:
        display.setCurrent(Game.getInstance());
        break;
      case LOAD:
        resume = true;//确定读档
        display.setCurrent(Game.getInstance());
        break;
      case SCORES:
        display.setCurrent(Scores.getInstance());
        break;
      case SETTINGS:
        display.setCurrent(Settings.getInstance());
        break;
      case HELP:
        display.setCurrent(Help.getInstance());
        break;
      case ABOUT:
        display.setCurrent(About.getInstance());
        break;
    }
  }

  public static void flow(String cmd) {
    switch (current) {
      case MAINMENU:
        if (cmd.equals("0")) {
          current = GAME;
          show(null);
        }
        else if (cmd.equals("1")) {
          current = LOAD;
          show(null);
        }
        else if (cmd.equals("2")) {
          current = SCORES;
          show(null);
        }
        else if (cmd.equals("3")) {
          current = SETTINGS;
          show(null);
        }
        else if (cmd.equals("4")) {
          current = HELP;
          show(null);
        }
        else if (cmd.equals("5")) {
          current = ABOUT;
          show(null);
        }
        else if (cmd.equals("6")) {
          midlet.notifyDestroyed();
        }
        break;
      case GAME:
        if (cmd.equals("返回")) {
          current = MAINMENU;
          show(null);
        }
        break;
      case LOAD:
        if (cmd.equals("返回")) {
          current = MAINMENU;
          show(null);
        }
      case SETTINGS:
        if (cmd.equals("返回")) {
          current = MAINMENU;
          show(null);
        }
        break;
      case SCORES:
        if (cmd.equals("返回")) {
          current = MAINMENU;
          show(null);
        }
        break;
      case HELP:
        if (cmd.equals("返回")) {
          current = MAINMENU;
          show(null);
        }
        break;
      case ABOUT:
        if (cmd.equals("返回")) {
          current = MAINMENU;
          show(null);
        }
        break;
    }
  }
}