if (init == 0)
{
    switch (image_index)
    {
        case 1:
            doorRoom = room + ROOM_INITIALIZE;
            break;
        case 2:
            doorRoom = room - ROOM_INITIALIZE;
            break;
        case 3:
            doorRoom = room + room_title_placeholder;
            break;
        case 4:
            doorRoom = room - room_title_placeholder;
            break;
        case 5:
            doorRoom = room + room_battletest;
            break;
        case 6:
            doorRoom = room - room_battletest;
            break;
        default:
            break;
    }
    if (image_index != 0)
        doorEntrance = image_index;
    if (doorSpecial != "none")
    {
    }
    init = 1;
}