std::string building;

std::cout << "-CONSTRUCTION MENU-" << std::endl << std::endl;

std::cout << "1. Barrack" << std::endl << std::endl;

std::cout << "Build: ";

std::cin >> building;

if (building == "1" || building == "Barrack" || building == "barrack")
{
    std::string sentence[10] = { "1%", "2%","3%", "4%", "5%", "6%", "7%", "8%", "9%" };

    for (int index = 0; sentence[index] != sentence[9]; index++)
    {
        std::cout << sentence[index] << std::flush;
        std::cout << "bb";
        Sleep(150);

        if (index == 8)
        {
            system("cls");
            std::cout << "Building done" << std::endl;
            system("pause");
            break;
        }
    }
}