Gen

void GameScene::generateTerrain()
{
    for ( std::size_t i = 0; i < planet.getUnitCount(); ++i )
    {
        sf::Uint16 prevUnit = planet.getUnit( ( i == 0 ) ? 0 : i );
        sf::Uint16 diff = ( rand() % GEN_DIFF ) - ( GEN_DIFF / 2 );
        planet.setUnit( i, prevUnit + diff );
    }
}