protected void createNullMark() { Matrix m = marks(); Random rnd = new Random(); int x = rnd.nextInt(m.columns()); int y = rnd.nextInt(m.rows()); AddNullMark(x, y); }
protected void createBlockMark() { Matrix m = marks(); Random rnd = new Random(); int x = rnd.nextInt(m.columns()); int y = rnd.nextInt(m.rows()); while (!blockMark(x, y)) ; }