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

public class UFO3MIDlet extends MIDlet implements CommandListener
{
	private UFOCanvas canvas;
	
	public void startApp()
	{
		//try
		//{
		if(canvas==null)
		{
			canvas=new UFOCanvas(Display.getDisplay(this));
			Command exitCommand=new Command("Exit",Command.EXIT,0);
			canvas.addCommand(exitCommand);
			canvas.setCommandListener(this);
		}
		
		//啟動畫布canvas
		canvas.start();
		//}
		//catch(IllegalArgumentException ee)
		//{
		//	System.err.println("Error!");
		//}
	}
	
	public void pauseApp(){}
	
	public void destroyApp(boolean unconditional)
	{
		canvas.stop();
	}
	
	public void commandAction(Command c,Displayable s)
	{
		if(c.getCommandType()==Command.EXIT)
		{
			destroyApp(true);
			notifyDestroyed();
		}
	}
}