draw_sprite(spr_slidingdoor, 0, x + slidedoorx, y);
draw_sprite(sprite_index, 0, x, y);
if (active == 1)
{
    if (instance_exists(obj_mainchara))
    {
        if ((distance_to_object(obj_mainchara) < 40 && on == -1) || on == 0)
            on = 1;
        if ((distance_to_object(obj_mainchara) > 60 && on == 1) || on == 0)
            on = -1;
    }
}
if (on == 1)
{
    c_noise = 0;
    s_noise = 0;
    if (o_noise == 0)
    {
        snd_play(snd_elecdoor_open);
        o_noise = 1;
    }
    if (slidedoorx < 40)
    {
        slidedoorx += 5;
    }
    else
    {
        on = 0;
        if (active == 0)
            snd_play(snd_elecdoor_shut);
    }
}
if (on == -1)
{
    o_noise = 0;
    s_noise = 0;
    if (c_noise == 0)
    {
        snd_play(snd_elecdoor_close);
        c_noise = 1;
    }
    if (slidedoorx > 0)
    {
        slidedoorx -= 5;
    }
    else
    {
        slidedoorx = 0;
        on = 0;
        if (active == 0)
            snd_play(snd_elecdoor_shut);
    }
}