if (type == "banana")
{
    var objcheck1 = place_meeting(x, y, obj_caradventure_car_enemy);
    var objcheck2 = place_meeting(x, y + sprite_height, obj_caradventure_car_enemy);
    if (objcheck1 >= 20)
    {
        with (objcheck1)
            y -= 4;
    }
    if (objcheck2 >= 20)
    {
        with (objcheck2)
            y += 4;
    }
}