import java.awt.*;
/*
 *
 * field
 *
 */
class field 
{

	int x_pos, y_pos, width, height;
	Graphics g;

	field (int x, int y, int w, int h)
	{
		x_pos = x;
		y_pos = y;
		width = w;
		height = h;

	}

	void setGraphics (Graphics gr)
	{
		g = gr;
	}

	 void draw ()
	 {
		 int x, y;

		 //g.setColor(Color.green);
		 //for (x = 0; x < width; x += 10)
		//	g.drawLine(x, 0, x, height);
		 //g.setColor(Color.red);
		 //for (y = 0; y < height; y += 10)
		//	g.drawLine(0, y, width, y);
	  	 //g.setColor(Color.black);

 		 g.fillRect( 0, 0, width, 10);
		 g.fillRect(0, 0, 10, height);
		 g.fillRect(0, height - 10, width, height);

	 }

	 void erase ()
	 {
		 g.setColor(Color.white);
		 draw();
	  	 g.setColor(Color.black);

	 }
	 void move (int x, int y)
	 {
		 
		 x_pos = x;
		 y_pos = y;
		 
	 }

}