public Wall(int courtWidth, int courtHeight, int INIT_X) {
		super(INIT_VEL_X, INIT_VEL_Y, INIT_X, INIT_Y, SIZE, SIZE, courtWidth,
				courtHeight);
		try {
			img1 = ImageIO.read(new File(img_file1));
		} catch (IOException e) {
			System.out.println("Internal Error:" + e.getMessage());
		}
		try {
			img2 = ImageIO.read(new File(img_file2));
		} catch (IOException e) {
			System.out.println("Internal Error:" + e.getMessage());
		}
		try {
			img3 = ImageIO.read(new File(img_file3));
		} catch (IOException e) {
			System.out.println("Internal Error:" + e.getMessage());
		}
	}