public void printWorld() {
        System.out.println(height);
        System.out.println(width);

        for (int i = 0; i < height; i++) {
            if (i % 2 == 1) { //odd row
                System.out.print(" ");
            }
            for (int j = 0; j < width; j++) {
                System.out.print(cells[i][j].getCellSymbol() + " ");
            }
            System.out.println();
        }
    }