import javax.microedition.lcdui.*;

public class MyCanvas extends Canvas implements Runnable
{
   private Random rnd;
	public int x, y, eny, enx, roadx, roady, altx, alty;
	public int speed, k, rotspeed;
	public boolean isdie = false;
	
	/**
	 * constructor
	 */
	public MyCanvas()
	{
		super();
		speed = 1;
		x = getWidth() / 2 - 5;
		y = 92;
		eny = -40;
		enx = 23;
      rnd = new Random();
	}
	
	public int random(int min, int max)
	{
		return min + rnd.nextInt(max);
	}

	public void start()
	{
		Thread t = new Thread(this);
		t.start();
	}

	public void run()
	{
		while (true)
		{
			repaint();
			try
			{
				Thread.sleep(100);
			}
			catch (Exception ex)
			{}
		}
	}

	public void paint(Graphics g) 
	{
		g.setColor(0, 0, 0);
		g.fillRect(0, 0, getWidth(), getHeight());


		if (isdie)
		{
			g.setColor(220, 20, 32);
			g.drawString("��������", 2, 3, Graphics.TOP);
			try
			{
				Thread.sleep(1000);
			}
			catch (Exception ex)
			{}
			isdie = false;
		}
		else
		{
			g.setColor(0, 230, 60);
			g.fillRect(x, y, 10, 30);
			g.setColor(230, 0, 0);
			g.fillRect(enx, eny, 10, 30);
			eny += speed;
			if (eny > getHeigth())
			{
				eny = -40;
				enx = random(0, getWidth());
			}
			if (k != 0)
			{
				sk();
			}
		}
	}

	/**
	 * Called when a key is pressed.
	 */
	protected  void keyPressed(int key)
	{
		k = key;

	}
	public void keyReleased(int key)
	{
		k = 0;
	}
	
	public void sk()
	{
		switch (k)
		{
			case KEY_NUM4:
				x -= 2;
				if (x < 0) 
				{
					x = 0;
				}
				break;
			case KEY_NUM6 :
				x += 2;
				if (x > getWidth() - 10)
				{
					x = getWidth() - 10;
				}
				break;
		}

	}
}