import javax.microedition.midlet.* ;
import javax.microedition.lcdui.* ;
public class GameMIDlet extends MIDlet
implements CommandListener
{
        /*定義舞臺*/
        Display display ;
        private Server server;
        private Client client;
        private static final String SERVER = "Server";
        private static final String CLIENT = "Client";
        /*定義選擇畫面*/
        private static final String[] names = {SERVER, CLIENT};
        private Form f;
        private ChoiceGroup cg;
        Command c1,exitCommand;
        public GameMIDlet()
        {       exitCommand = new Command("exit", Command.EXIT,2);
                 c1=new Command("結束", Command.EXIT, 1);
                display = Display.getDisplay(this) ;
        }
        /*初始化選擇畫面*/
        public void begin()
        { f = new Form("泡泡車");
                        cg = new ChoiceGroup("請選擇類型",Choice.EXCLUSIVE, names, null);
                        f.append(cg);
                        f.addCommand(new Command("開始", Command.OK, 1));
                        f.addCommand(c1);
                        f.setCommandListener(this);
                        display.setCurrent(f);
        }
        public void startApp()
        {
         begin();              
                
        }
        /*按鍵事件監聽*/
        public void commandAction(Command c,Displayable s)
        {
                String cmd = c.getLabel() ;
                if(cmd.equals("開始"))
                {
                  String name = cg.getString(cg.getSelectedIndex());
                  if (name.equals(SERVER)) {
                   server = new Server(this);
                   server.start();
                }
                else {
            	client = new Client(this);
                client.start();
            }
            }else if(cmd.equals("結束"))
                {
                        notifyDestroyed() ;
                }
               else if(cmd.equals("Exit"))
	          {if (server != null) {
                    server.stop();
                    }
                if (client != null) {
                    client.stop();
                }
                begin();
            }

        }
        public void pauseApp()
        {

        }
        public void destroyApp(boolean unconditional)
        {
        }
}