public void processFire(Bullet bullet) throws Exception {
    this.bullet = bullet;

    while ((bullet.getX() > -15 && bullet.getX() < battleField.getBF_WIDTH())
        && (bullet.getY() > -15 && bullet.getY() < battleField.getBF_HEIGHT())) {
      if (bullet.getDirection() == Direction.UP) {
        bullet.updateY(-step);
      } else if (bullet.getDirection() == Direction.DOWN) {
        bullet.updateY(step);
      } else if (bullet.getDirection() == Direction.LEFT) {
        bullet.updateX(-step);
      } else {
        bullet.updateX(step);
      }
      if (processInterception() == true) {
        bullet.destroy();
      }
      repaintFire();
    }
  }
  public ActionField() throws Exception {
    battleField = new BattleField();
    tank = new Tank(this, battleField);

    agressor =
        new Agressor(
            Integer.parseInt(position.substring(0, position.indexOf("_"))),
            Integer.parseInt(position.substring(position.lastIndexOf("_") + 1, position.length())),
            Direction.LEFT,
            this,
            battleField);
    bullet = new Bullet(-100, -100, Direction.STOP);
    JFrame frame = new JFrame("BATTLE FIELD, DAY 2");
    frame.setLocation(750, 150);
    frame.setMinimumSize(
        new Dimension(battleField.getBF_WIDTH() + 16, battleField.getBF_HEIGHT() + 39));
    frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
    frame.getContentPane().add(this);
    frame.pack();
    frame.setVisible(true);
  }