manmidlet.java

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package man;

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

/**
 * MIDlet 应用主单元
 */

public class ManMIDlet
    extends MIDlet implements CommandListener {

  //--- 定义变量 ----------------------------------------------------------------
  private Display display;  // 显示对象
  private ManGameCanvas manGC;  // 主类对象
  private Command exitCommand;  // 退出按键
  private Command confirmCommand;  // 确定对象
  private List list;  // 难度列表对象
  private String[] position = {  // 难度名
      "普通", "噩梦", "地狱","重置游戏记录"};
  private Image[] positionicon = {  // 难度图标
      ImageTools.getImage("/pic/d_easy.png"),
      ImageTools.getImage("/pic/d_normal.png"),
      ImageTools.getImage("/pic/d_hard.png"),
      ImageTools.getImage("/pic/record.png")};
  private Image ImgAlert=ImageTools.getImage("/pic/alert.png");
  private Alert alert;  // 警告

  //--- 应用主方法 --------------------------------------------------------------
  public ManMIDlet() {
    manGC = new ManGameCanvas(this);
    display = Display.getDisplay(this);
    exitCommand = new Command("退出", Command.EXIT, 1);
    confirmCommand = new Command("确定", Command.SCREEN, 1);
  }

  //--- 开始 -------------------------------------------------------------------
  protected void startApp() {
    alert=new Alert(null,null,ImgAlert,AlertType.WARNING);
    alert.setTimeout(3000);
    list = new List("选择难度", List.EXCLUSIVE, position, positionicon);
    list.addCommand(exitCommand);
    list.addCommand(confirmCommand);
    list.setCommandListener(this);
    display.setCurrent(list);
  }

  protected void pauseApp() {
  }

  protected void destroyApp(boolean unconditional) {
  }

  //--- 退出 -------------------------------------------------------------------
  protected void quitApp() {
    System.gc();
    destroyApp(true);
    notifyDestroyed();
  }

  //--- 监听按钮 ----------------------------------------------------------------
  public void commandAction(Command command, Displayable displayable) {
    if (command == exitCommand) {
      destroyApp(false);
      notifyDestroyed();
    }
    if (command == confirmCommand) {
      int gamelevel = list.getSelectedIndex();
      if(gamelevel==3){
        display.setCurrent(alert);
        manGC.resetrecord(1);
        manGC.resetrecord(2);
        manGC.resetrecord(3);
      }
      else if(gamelevel<3){
        manGC.setGameLevel(gamelevel + 1);
        display.setCurrent(manGC);
      }
    }
  }
}