/* 
 * File: TicTacToeBoard.java
 * -------------------------
 * This program draws a Tic-Tac-Toe board at the center of the window.
 * This version uses constant for better programming style
 *
 * Author: CS1MD3, Sept. 2008
 */

import acm.graphics.*;
import acm.program.*;

public class TicTacToeBoard extends GraphicsProgram {
	
   public void run() {
      /* gap between lines */
      int gap = BOARD_SIZE / 3;
      /* coordinates of the upper-left corner of the board */
      int  x = (getWidth() - BOARD_SIZE) / 2;
      int  y = (getHeight() - BOARD_SIZE) / 2;

      /* draw horizontal lines */
      add(new GLine(x, y + gap, x + BOARD_SIZE , y + gap));
      add(new GLine(x, y + 2*gap, x + BOARD_SIZE, y + 2*gap));
      /* draw vertical lines */
      add(new GLine(x + gap, y, x + gap, y + BOARD_SIZE));
      add(new GLine(x + 2*gap, y, x + 2*gap, y + BOARD_SIZE));
   }
   /* constant BOARD_SIZE */
    private static final int BOARD_SIZE = 180;
}